The JI
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     
 

This Article
Right arrow Abstract Freely available
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Request Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Sato, T. A.
Right arrow Articles by Mitchell, M. D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Sato, T. A.
Right arrow Articles by Mitchell, M. D.
The Journal of Immunology, 2003, 170: 158-166.
Copyright © 2003 by The American Association of Immunologists

Critical Paracrine Interactions Between TNF-{alpha} and IL-10 Regulate Lipopolysaccharide-Stimulated Human Choriodecidual Cytokine and Prostaglandin E2 Production1

Timothy A. Sato2, Jeffrey A. Keelan and Murray D. Mitchell

Liggins Institute and Division of Pharmacology and Clinical Pharmacology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand


   Abstract
Top
 Abstract
Introduction
 Materials and Methods
 Results
 Discussion
 References
 
Increased production of PGs by gestational membranes is believed to be a principal initiator of term and preterm labor. Intrauterine infection is associated with an inflammatory response in the choriodecidua characterized by elevated production of cytokines and PGs. The precise physiological significance of enhanced choriodecidual cytokine production in the mechanism of preterm labor remains uncertain. These studies were undertaken to dissect the roles and regulation of endogenous cytokines in regulating PG production by human choriodecidua. We used LPS treatment of human choriodecidual explants as our model system. In choriodecidual explant cultures, LPS (5 µg/ml) induced a rapid increase in TNF-{alpha} production, peaking at 4 h. In contrast, IL-10, IL-1{beta}, and PGE2 production rates peaked 8, 12, and 24 h, respectively, after LPS stimulation. Immunoneutralization studies indicated that TNF-{alpha} was a primary regulator of IL-1{beta}, IL-10, and PGE2 production, while IL-1{beta} stimulated only PGE2 production. Neutralization of endogenous IL-10 resulted in increased TNF-{alpha} and PGE2 production. IL-10 treatment markedly decreased TNF-{alpha} and IL-1{beta} production, but had no effect on PGE2 production. Taken together, these results demonstrate that the effects of LPS on choriodecidual cytokine and PG production are modulated by both positive and negative feedback loops. In the setting of an infection of the intrauterine, TNF-{alpha} may be a potential target for treatment intervention; IL-10 could be one such therapeutic.


   Introduction
Top
 Abstract
 Introduction
Materials and Methods
 Results
 Discussion
 References
 
Preterm labor resulting in delivery occurs in ~5–10% of all pregnancies (1). Despite advances in the understanding of the mechanisms that result in preterm birth, this rate has remained relatively constant for decades. Between 30 and 70% of very preterm births are associated with an ascending intrauterine infection in which microorganisms, originating from the vagina, rise through the choriodecidua and subsequently colonize the chorion, amnion, amniotic fluid, and ultimately the fetus (2). In response to the infective pathogen, the maternal immune system initiates an inflammatory response that frequently results in the onset of preterm labor.

The choriodecidua is a tissue composed of interdigitating fetal and maternal cells. In an ascending intrauterine infection it is the first tissue colonized by the microbial pathogen and is the main barrier to progression of the infection into the amniotic cavity. The response of the choriodecidua to the presence of the microorganism is likely an integral part in determining the severity, extent, and consequences of the infection.

Human gestational membranes produce a number of proinflammatory cytokines (e.g., IL-1{beta}, TNF-{alpha}, IL-6, and IL-8) and PGs, both constitutively and in response to inflammatory stimuli and bacterial cell wall products such as LPS (3, 4, 5, 6). At parturition, both at term as well as preterm, there is an increase in the production of these proinflammatory mediators within the uterus, but in the case of intrauterine infection, this response is significantly increased (4, 7, 8). Previous studies have shown that LPS treatment of pregnant mice leads to an increase in IL-1{beta} and PGE2 production by decidual caps in vitro (9, 10) and preterm delivery (3). Mice treated with LPS also have elevated circulating levels of both TNF-{alpha} and IL-10 (11). These findings indicate that cytokines and PGs produced by gestational tissues as a result of LPS treatment might play an important role in the initiation of preterm labor leading to delivery.

In addition to proinflammatory cytokines, gestational tissues can also produce anti-inflammatory cytokines such as IL-10 (12, 13). IL-10 is a potent inhibitor of the production of IL-1{alpha}, IL-6, IL-8, and TNF-{alpha} by human monocytes and macrophages (11). It is produced by chorion, decidual, and placental tissues (14, 15, 16, 17, 18, 19, 20) and has been detected in the amniotic fluid of women during late gestation (21, 22, 23). IL-10 production by decidual cells in vitro has been reported to increase upon treatment with IL-1{beta} and bacterial cell wall products (14, 15, 16, 17). IL-10 inhibits cytokine and PG production by human chorion, decidual, and placental cells in vitro (24, 25, 26, 27, 28, 29), although the effects of endogenous IL-10 on the local inflammatory response have not been determined. However, it has been reported that treatment with IL-10 prevented LPS-induced preterm delivery in mice (30) as well as rats (31). IL-10 thus has therapeutic potential for the treatment of intrauterine infection-associated preterm labor.

The present studies were conducted to characterize auto regulatory interactions between pro- and anti-inflammatory cytokines in choriodecidual explants upon stimulation with LPS. Although it has been established that LPS elicits an inflammatory response within gestational tissues, the significance and role of local mediators in the elaboration of the response is not clear. Potential targets for intervention could potentially be identified if they werefound to be key mediators in the response. Explants were chosen as the model of study to ensure that the structural and cellular architecture of the choriodecidual membrane was maintained.


   Materials and Methods
Top
 Abstract
 Introduction
 Materials and Methods
Results
 Discussion
 References
 
Materials

DMEM-199 culture was obtained from Irvine Scientific (Santa Ana, CA). FCS and streptavidin-alkaline phosphatase were purchased from Invitrogen (Auckland, New Zealand). Bovine {gamma}-globulin and LPS (serotype 055:B5) were purchased from Sigma-Aldrich (St. Louis, MO). Human IL-1{beta} was a generous gift of Immunex (Seattle, WA). IL-1R antagonist (IL-1Ra)3 was a gift from Synergen (Boulder, CO). For experimental studies, the human rTNF-{alpha} was provided by Dr. J. Fraser (Department of Molecular Medicine, University of Auckland, Auckland, New Zealand). Recombinant IL-1{beta} and anti-IL-1{beta} antiserum were purchased from R&D Systems (Minneapolis, MN). Abs to IL-10 and TNF-{alpha} were purchased from BD PharMingen (San Diego, CA). Tritiated PGE2 was purchased from Amersham Pharmacia Biotech (Aylesbury, U.K.). Recombinant IL-10 and TNF-{alpha} used to calibrate the ELISAs were purchased from R&D Systems.

Explant culture

All procedures involving human placentas were approved by the Auckland Ethics Committee. Placentas were obtained with informed consent from women undergoing elective Cesarean section at term before the onset of labor. After manually removing the amnion, choriodecidual membranes were washed carefully in medium to remove residual RBCs without causing damage to the integrity of the membrane. Tissue explants (6-mm disks) were excised with a cork borer as described previously (32). Explants were pooled and randomly distributed into six-well plates (six explants per well, three wells per treatment) containing medium supplemented with 10% FCS and antibiotics (33). The explants were allowed to equilibrate overnight at 37°C in a humidified atmosphere of 5% CO2/95% air. The following day, media were replaced with serum-free media containing 0.1% bovine {gamma}-globulin and antibiotics. Explants were then treated with the various test substances or the appropriate vehicle control. At the indicated time points, the media were collected. Production rates were normalized to the wet weight of the explants in the individual wells.

Immunoneutralization experiments

Commercially available neutralizing Abs were used to neutralize the effects of the LPS-stimulated TNF-{alpha} and IL-10. The Ab at various concentrations was added concurrently with the LPS and supernatants were harvested 24 h later. The explants were pretreated with the IL-1Ra for 1 h before the addition of LPS and supernatants were harvested 24 h later. The concentrations selected were chosen according to manufacturer’s specifications for neutralizing the cytokines (34, 35).

Immunoassays

IL-1{beta}, IL-10, and TNF-{alpha} were measured by ELISA as previously described. (32, 33). PGE2 production was determined by RIA as described previously using an antiserum generated in our laboratory (36).

Data presentation and statistics

Cytokine and PG production rates, calculated as picograms per milligram of wet weight/24 h, are represented as a percent of control for each experiment (mean ± SEM). Results are presented as pooled data from multiple experiments performed in triplicate. Statistical significance was determined by ANOVA followed by Dunnett’s test. A value of p < 0.05 was considered to be significant.


   Results
Top
 Abstract
 Introduction
 Materials and Methods
 Results
Discussion
 References
 
Cytokine and PG production by LPS-stimulated human choriodecidual explants: time course

Results presented in Fig. 1Go show the time course of choriodecidual IL-1{beta} (Fig. 1Goa), IL-10 (Fig. 1Gob), TNF-{alpha} (Fig. 1Goc), and PGE2 (Fig. 1God) production at 2, 8, 12, and 24 h after stimulation with LPS (5 µg/ml). The production of IL-1{beta} was significantly elevated compared with control at the 8 h time point, reaching maximum levels at 12 h post-LPS. PGE2 production followed a similar time course to that of IL-1{beta}. IL-10 production was significantly elevated 4 h after LPS stimulation and maximal production rates were observed 8 h after stimulation. TNF-{alpha} production was maximal 4 h after LPS stimulation and subsequently decreased by approximately one-third over 4–24 h; production of TNF-{alpha} at 24 h post-LPS stimulation was similar to that observed at the 2-h time point. The basal production of TNF-{alpha} leveled off after 8 h and remained constant for the subsequent time points studied. The basal production of the other cytokines as well as PGE2 also showed similar patterns. This pattern of TNF-{alpha} production remained evident when the data were expressed as picograms per milligram of tissue rather than normalized to control (Fig. 2Go).



View larger version (26K):
[in this window]
[in a new window]
  		FIGURE 1. Time course of cytokine and PGE2 production by LPS-simulated human choriodecidual explants. Explants were treated with 5 µg/ml LPS and the media were harvested at the indicated time points and IL-1{beta} (a), IL-10 (b), TNF-{alpha} (c), and PGE2 (d) production was determined at the time points indicated. Results, initially derived as picograms per milligram of wet tissue weight, are expressed as percentage of control for each time point (mean ± SEM, n = 3 placentas). *, p < 0.05 vs control.

 


View larger version (17K):
[in this window]
[in a new window]
  		FIGURE 2. Choriodecidual TNF-{alpha} production in the presence and absence of LPS. Data displayed represent three experiments, expressed as picograms per milligram of wet weight of tissue (mean ± SEM).

 
Effects of neutralization of endogenous cytokines

LPS induced a significant increase in IL-1{beta}, IL-10, and PGE2 production. Immunoneutralization of TNF-{alpha} bioactivity resulted in a significant reduction in LPS-stimulated production of IL-1{beta} (Fig. 3Goa), IL-10 (Fig. 3Gob), and PGE2 (Fig. 3Goc) over a 24-h incubation period. A significant reduction of IL-1{beta} production was observed with the TNF-{alpha} neutralizing Ab at a concentration of 3 µg/ml, while LPS-stimulated production rates of IL-10 and PGE2 were significantly reduced at 1–3 µg/ml anti-TNF-{alpha} Ab.



View larger version (22K):
[in this window]
[in a new window]
  		FIGURE 3. The effects of TNF-{alpha} immunoneutralization on LPS-stimulated choriodecidual cytokine and PG production. Anti-TNF-{alpha} Ab and LPS 5 (µg/ml) were added concurrently to choriodecidual explants. IL-1{beta} (a), IL-10 (b), and PGE2 (c) production was determined over 24 h. Results are expressed as a percentage of control (mean ± SEM, n = 3 placentas). *, p < 0.05 vs LPS only control.

 
The effects of IL-10 immunoneutralization on cytokine production by LPS-stimulated choriodecidual explants are presented in Fig. 4Go. Although there was no significant effect on LPS-stimulated IL-1{beta} production over the 24-h culture period (Fig. 4Goa), IL-10 neutralization resulted in a significant increase in the production of TNF-{alpha} (Fig. 4Gob), and PGE2 (Fig. 4Goc) at all concentrations of anti-IL-10 neutralizing Ab tested (0.3–3 µg/ml). In the case of TNF-{alpha}, neutralization of IL-10 resulted in a 4-fold increase in the production of TNF-{alpha} after 24 h stimulation with LPS. The addition of exogenous IL-10 (25–100 ng/ml) resulted in a decrease in IL-1{beta} production (Fig. 5Goa). The inhibitory effects of IL-10 on TNF-{alpha} production were more pronounced (Fig. 5Gob), with all concentrations of IL-10 tested (1–100 ng/ml) significantly inhibiting TNF-{alpha} production. The effect was concentration-dependent, with the higher concentrations of IL-10 exerting the greatest degree of inhibition. Addition of IL-10 had no effect on PGE2 production by LPS-stimulated choriodecidual explants (Fig. 5Goc).



View larger version (20K):
[in this window]
[in a new window]
  		FIGURE 4. The effects of IL-10 immunoneutralization on cytokine and PGE2 production by LPS-stimulated choriodecidual explants. The anti-IL-10 Ab and LPS (5 µg/ml) were added concurrently and incubated for 24 h and IL-1{beta} (a), TNF-{alpha} (b), and PGE2 (c) production was determined. Results are presented as percentage of the value of the control (mean ± SEM, n = 3 placentas). *, p < 0.05 vs LPS only control.

 


View larger version (18K):
[in this window]
[in a new window]
  		FIGURE 5. The effect of exogenous IL-10 on cytokine and PGE2 production by LPS-stimulated choriodecidual explants. IL-10 was added concurrently to LPS-stimulated human choriodecidual explants and after a 24-h incubation IL-1{beta} (a), TNF-{alpha} (b), and PGE2 (c) production was determined. Results are expressed as percentage of control (mean ± SEM, n = 3 placentas). *, p < 0.05 vs LPS only control.

 
Addition of IL-1Ra had no statistically significant effect on production of IL-10 (Fig. 6Goa) or TNF-{alpha} (Fig. 6Gob) by LPS-stimulated choriodecidual explants over 24 h. However, there was a significant reduction (40%) in PGE2 production at 1 µg/ml IL-1Ra.



View larger version (20K):
[in this window]
[in a new window]
  		FIGURE 6. The effects of IL-1Ra on cytokine and PGE2 production by LPS-stimulated choriodecidual explants. IL-1Ra was added to explants 1 h before LPS (5 µg/ml) addition and was incubated further for 24 h. IL-10 (a), TNF-{alpha} (b), and PGE2 (c) production was determined. Results are expressed as percentage of control (mean ± SEM, n = 3 placentas). *, p < 0.05 vs LPS only control.

 

   Discussion
Top
 Abstract
 Introduction
 Materials and Methods
 Results
 Discussion
References
 
The resident cells in the choriodecidua are of pivotal importance in the inflammatory response elicited by microbial colonization of the gestational membranes. In tissues with histological chorioamnionitis, the chorion and decidua become infiltrated with leukocytes, which in some cases accumulate at the margin between the amnion and chorion (37). There is little doubt that the cytokines released by choriodecidual membranes upon LPS stimulation play a role in the elaboration of the inflammatory response; however, whether they are principal drivers of the inflammatory reaction or secondary modulators has been a matter for debate (38). Because both positive and negative regulators of the inflammatory reaction are produced in response to infection, the degree of stimulation observed would presumably depend upon the balance of pro/anti-inflammatory cytokines released in response to contact with microbial products, which in this study was modeled using a bacterial LPS preparation from Escherichia coli. E. coli is one of the most common bacteria associated with neonatal infections (39) and infection of the amniotic cavity (1, 40) The results presented in this study strongly argue that in the choriodecidua, cytokines are involved in both positive and negative feedback loops to modulate the inflammatory response to bacteria, which in turn regulates the production of uterotonic PGs.

We have previously reported that the exogenous treatment of choriodecidual explants with TNF-{alpha} and IL-1{beta} results in increased production of both PGE2 and IL-10 after 24 h (32, 41). These results confirmed the immunomodulatory role of TNF-{alpha} and IL-1{beta} in the regulation of anti-inflammatory cytokines as well as PGs. Results reported in this study demonstrated that the TNF-{alpha} produced by choriodecidual explants in response to LPS exposure is a crucial modulator of further cytokine and PG production. TNF-{alpha} is a potent proinflammatory mediator and has been implicated as the primary cause of many immunopathologies ranging from arthritis (42, 43, 44) to septic shock (45, 46), in addition to preterm labor (47). Mice treated with Abs or antagonists to TNF-{alpha} are subsequently protected from LPS-induced death (45, 48, 49). Our data would suggest that, in the choriodecidua, the inflammatory response elicited by bacteria might be mediated and modulated to a large extent by the actions of endogenous cytokines. TNF-{alpha} is the critical stimulating factor in regulating choriodecidual IL-1{beta}, IL-10, and PGE2 production, although it should be noted that neutralization of TNF-{alpha} did not result in a complete inhibition of LPS-stimulated cytokine and PG production. The concentrations of the Abs used were chosen based on the manufacturer’s recommendations (34, 35) and confirmed by removal of immunodetectable TNF-{alpha} in preliminary experiments. However, the lack of complete inhibition could reflect inadequate penetration of the neutralizing Abs as they were added concurrently with the LPS treatment. Additionally, cytokine measurements reflect the concentrations present in the media, whereas the localized concentrations of the cytokines within the tissues may be significantly higher. Alternatively, the LPS treatment could have resulted in the production of other as yet unidentified factors that may also exert proinflammatory actions. IL-1{beta} may be a candidate factor because it is a potent proinflammatory cytokine that has been shown to be released by decidual cells and to increase PG production by gestational tissues through increased expression of PGH synthase (PGHS)-II (50). Results presented in this study demonstrated that IL-1{beta} production was significantly increased 8 h after LPS stimulation, while PGE2 production did not reach a maximum until 12–24 h after LPS stimulation. Therefore, the IL-1{beta} produced may contribute to PGE2 production as it is present in significantly increased levels 16 h before the medium was harvested. Antagonism of IL-1 activity by IL-1Ra resulted in a decrease in PGE2 production, supporting this conclusion. Immunoneutralization of IL-10 resulted in an increase in PGE2 production. However, addition of exogenous IL-10 failed to exert any effects on PGE2 production despite a reduction in IL-1{beta} and TNF-{alpha} production. These apparently conflicting data may be explained by the possibility that IL-10 may not be having a direct effect itself on PGE2 production, but that an additional factor(s) may be produced upon LPS treatment of the choriodecidual explants. These data are not consistent with those of others showing inhibition of PG production by IL-10 in gestational membranes (51, 52).

The anti-inflammatory effects of IL-10 have been well-documented (12). Previous studies have demonstrated that IL-10 can decrease TNF-{alpha} production in human macrophages and monocytes (53). Cassatella et al. (13) demonstrated that IL-10 diminished the levels of TNF, IL-1-{beta}, and IL-8 mRNA late after the onset of stimulation of polymorphonuclear leukocytes with LPS. Previous studies in gestational tissues indicated that IL-10 inhibits basal- as well as LPS-stimulated PGE2 production by intact fetal membranes (52). In the present study, we observed that IL-10 was produced at the time when TNF-{alpha} levels were beginning to decrease, and one interpretation of these data is that the effects of IL-10 on PGE2 production are mediated by its inhibition of TNF-{alpha} production. It has been reported that the inhibitory effects of IL-10 on TNF-{alpha} production are independent of its ability to suppress the effects of NF-{kappa}B activation (54, 55). Studies conducted on human monocytes demonstrated that IL-10 can down-regulate surface expression of the TNF receptor while increasing production of the soluble TNF-{alpha} receptor, in addition to inhibiting the release of TNF-{alpha} itself (56, 57). The effects of IL-10 on TNF-{alpha} receptor expression in human gestational tissues are unknown at this time. It is possible that IL-10 could suppress TNF-{alpha} receptor expression in addition to decreasing TNF-{alpha} production, thus exerting a more complete antagonism of TNF-{alpha} effects. IL-10 has also been reported to increase IL-1Ra production from LPS-stimulated human polymorphonuclear leukocytes (58) as well as the decidua (59), offering the possibility of an additional route of action of IL-10 in the gestational membranes.

IL-10 has been shown to inhibit PGHS-II mRNA expression in human monocytes (60) and neutrophils (61), and also in IL-1{beta}- and TNF-{alpha}-stimulated trophoblast cells (51). However, PG activity can also be regulated by catabolism. 15-Hydroxyprostaglandin dehydrogenase (PGDH) is an NAD-dependent cytoplasmic enzyme that reduces the biological activity of PGs by catalyzing the first reaction in the catabolic pathway for PG degradation and inactivation. PGDH is expressed and functions in human placenta and fetal membranes (62, 63). A reduction of chorion PGDH activity and expression has been demonstrated in association with preterm birth, particularly in pregnancies with intrauterine infection (64). In villous and chorionic trophoblasts, IL-1{beta} increases levels of PGHS-II mRNA and decreases PGDH mRNA in villous trophoblasts; both of these effects can be reversed by IL-10 (51). Hence, in addition to its effects mediated by TNF-{alpha} inhibition, IL-10 could also both decrease the synthesis and increase catabolism of PGs in these tissues.

The results of the present studies are summarized in the schematic pathway presented in Fig. 7Go. Upon LPS exposure, the human choriodecidua membranes initially produce TNF-{alpha}, which in turn induces the production of IL-1{beta}, PGE2, and IL-10. Endogenous IL-1{beta} potentiates the production of PGE2 while IL-10 inhibits the production of TNF-{alpha} and PGE2. The choriodecidua is composed of cells of both fetal and maternal origin. Previous studies have characterized cytokine production by chorion and decidual cells and also identified the localization of cytokine receptors present (7, 47, 50, 59). Apart from resident cells of these tissues, other potential sources of cytokine production are the lymphocytes that infiltrate as the onset of labor approaches (65, 66, 67). All the placentas used in this study were from patients undergoing elective Cesarean sections at term. However, it is feasible that decidual lymphocytes may have contributed to cytokine and PG production and interacted with the resident cells of the choriodecidua to modulate the responses.



View larger version (8K):
[in this window]
[in a new window]
  		FIGURE 7. Schematic representation of paracrine/autocrine interactions between cytokines and PGs in choriodecidua exposed to bacterial LPS. Proinflammatory (solid arrows) and anti-inflammatory (dashed arrows) responses are indicated.

 
From our data we conclude that the paracrine/autocrine role of choriodecidual TNF-{alpha} appears to be pivotal in the elaboration of the inflammatory response to LPS. These studies suggest that pharmacological agents that inhibit TNF-{alpha} synthesis or actions might be an effective therapeutic intervention aimed at preventing or delaying infection-associated preterm delivery. IL-10 may be such an agent as results presented in this study demonstrated that itcan inhibit TNF-{alpha} and IL-1{beta} production by LPS-stimulated choriodecidual membranes and is also involved in the suppression of PG production.


   Acknowledgments
 
We thank the theater staff at National Women’s Hospital for the collection of placentas, with a very special thanks to Oliva Tupusi for the organization of patient consent. We also thank and acknowledge Elizabeth Robinson (Department of Community Health, University of Auckland, New Zealand) for her advice on the statistical analysis of the data.


   Footnotes
 
1 This study was supported by the Health Research Council of New Zealand. Back

2 Address correspondence and reprint requests to Timothy A. Sato, Liggins Institute, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand. E-mail address: t.sato{at}auckland.ac.nz Back

3 Abbreviations used in this paper: IL-1Ra, IL-1R antagonist; PGHS, PGH synthase; PGDH, 15-hydroxyprostaglandin dehydrogenase. Back

Received for publication August 5, 2002. Accepted for publication October 22, 2002.


   References
Top
 Abstract
 Introduction
 Materials and Methods
 Results
 Discussion
 References
 

  1. Romero, R., M. Sirtori, E. Oyarzun, C. Avila, M. Mazor, R. Callahan, V. Sabo, A. P. Athanassiades, J. C. Hobbins. 1989. Infection and labor. V. Prevalence, microbiology, and clinical significance of intraamniotic infection in women with preterm labor and intact membranes. Am. J. Obstet. Gynecol. 161:817.[Medline]
  2. Hillier, S. J., J. Martius, M. L. Kron, N. Kiviat, K. K. Holmes, D. A. Eschenbach. 1988. A case control study of chorioamnionic infection and histological chorioamnionitis in prematurity. N. Engl. J. Med. 319:972.[Abstract]
  3. Dudley, D. J., C. Chen, D. W. Branch, E. Hammond, M. D. Mitchell. 1993. A murine model of preterm labor: inflammatory mediators regulate the production of prostaglandin E-2 and interleukin-6 by murine decidua. Biol. Reprod. 48:33.[Abstract]
  4. Mitchell, M. D., R. J. Romero, S. S. Edwin, M. S. Trautman. 1995. Prostaglandins and parturition. Reprod. Fertil. Dev. 7:623.[Medline]
  5. Petraglia, F., P. Florio, C. Nappi, A. R. Genazzani. 1996. Peptide signalling in human placenta and membranes: autocrine, paracrine and endocrine mechanisms. Endocr. Rev. 17:156.[Abstract/Free Full Text]
  6. Mitchell, M. D., R. Romero, C. J., J. T. Avila, J. T. Foster, S. S. Edwin. 1991. Prostaglandin production by amnion and decidual cells in response to bacterial products. Prostaglandins Leukotrienes Essent. Fatty Acids 42:167.[Medline]
  7. Dudley, D. J., D. Collmer, M. D. Mitchell, M. S. Trautmen. 1996. Inflammatory cytokine mRNA in human gestational tissues: implications for term and preterm labor. J. Soc. Gynecol. Investig. 3:328.[Medline]
  8. Romero, R., H. Munoz, R. Gomez, M. Parra, M. Polanco, V. Valerde, J. Hasbun, J. Garrido, F. Ghezzi, M. Mazor, et al 1996. Increase in prostaglandin bio-availability precedes the onset of human parturition. Prostaglandins Leukotrienes Essent. Fatty Acids 54:187.[Medline]
  9. Silver, R. M., S. S. Edwin, F. Umar, D. J. Dudley, D. Branch, M. D. Mitchell. 1997. Bacterial lipopolysaccharide-mediated murine fetal death: the role of interleukin-1. Am. J. Obstet. Gynecol. 176:544.[Medline]
  10. Sato, T. A., J. A. Keelan, D. K. Gupta, M. D. Mitchell. 2001. Gestational age-dependent effects of lipopolysaccharide on prostaglandin production by murine decidual caps. Prostaglandins Leukotrienes Essent. Fatty Acids 64:135.[Medline]
  11. Barsig, J., S. Kuesters, K. Vogt, H.-D. Volk, G. Tiegs, A. Wendel. 1995. Lipopolysaccharide-induced interleukin-10 in mice: role of endogenous tumor necrosis factor-{alpha}. Eur. J. Immunol. 25:2888.[Medline]
  12. Moore, K. W., A. O’Garra, D. W. Malefyt, P. Viera, T. R. Mosmann. 1993. Interleukin-10. Annu. Rev. Immunol. 11:165.[Medline]
  13. Cassatella, M. A., L. Meda, S. Bonoro, M. Ceska, G. Constantin. 1993. Interleukin 10 (IL-10) inhibits the release of proinflammatory cytokines from human polymorphonuclear leukocytes: evidence for an autocrine role of tumor necrosis factor and IL-1-{beta} in mediating the production of IL-8 triggered by lipopolysaccharide. J. Exp. Med. 178:2207.[Abstract/Free Full Text]
  14. Trautman, M. S., D. Collmer, S. S. Edwin, M. D. W. W., M. D. Mitchell, D. J. Dudley. 1997. Expression of interleukin-10 in human gestational tissues. J. Soc. Gynecol. Investig. 4:247.[Medline]
  15. Dudley, D. J., S. S. Edwin, A. Dangerfield, K. Jackson, M. S. Trautman. 1997. Regulation of decidual cell and chorion cell production of interleukin-10 by purified bacterial products. Am. J. Reprod. Immunol. 38:246.
  16. Paradowska, E., Z. Blacholszewska, D. Gejdel. 1997. Constitutive and induced cytokines production by human placenta and amniotic membrane at term. Placenta 18:441.[Medline]
  17. Jones, C. A., J. J. Finlay-Jones, P. H. Hart. 1997. Type-1 and type-2 cytokines in human late-gestation decidual tissue. Biol. Reprod. 57:303.[Abstract]
  18. Roth, I., D. B. Corry, R. M. Locksley, J. S. Abrams, M. J. Litton, S. J. Fisher. 1996. Human placental cytotrophoblasts produce the immuno suppressive cytokine interleukin-10. J. Exp. Med. 184:539.[Abstract/Free Full Text]
  19. Cadat, P., P. L. Rady, S. K. Tyring, R. B. Yandell, T. K. Hughes. 1995. Interleukin-10 messenger ribonucleic acid in human placenta: implications of a role for interleukin-10 in fetal allograft protection. Am. J. Obstet. Gynecol. 173:25.[Medline]
  20. Bennett, W. A., S. Lagoo-Deenadaylalan, M. N. Brackin, E. Hale, B. D. Cowan. 1996. Cytokine expression by models of human trophoblast as assessed by a semi-quantitative reverse transcription-polymerase chain reaction technique. Am. J. Reprod. Immunol. 36:285.
  21. Heyborne, K., J. A. McGregor, G. Henry, S. S. Witkin, J. A. Abrams. 1995. Interleukin-10 in amniotic fluid at midtrimester: immune activation and suppression in relation to fetal growth. Am. J. Obstet. Gynecol. 171:55.
  22. Grieg, P. C., W. N. P. Herbert, B. L. Robinette, L. A. Teot. 1995. Amniotic fluid interleukin-10 concentrations increase through pregnancy and are elevated in patients with preterm labor associated with intrauterine infection. Am. J. Obstet. Gynecol. 173:1223.[Medline]
  23. Dudley, D. J., C. Hunter, M. D. Mitchell, M. W. Varner. 1997. Amniotic fluid interleukin-10 (IL-10) concentrations during pregnancy and with labor. J. Reprod. Immunol. 33:147.[Medline]
  24. Dudley, D. J., S. Spencer, S. Edwin, M. D. Mitchell. 1994. Interleukin-10 inhibits cytokine production by human gestational tissues. Cytokine 6:545.
  25. Spencer, S., S. S. Edwin, M. D. Mitchell, D. J. Dudley. 1995. Interleukin-10 (IL-10) inhibits prostaglandin E2 (PGE2) and interleukin-6 production in human decidual cells: a potential role in preterm labor. J. Investig. Med. 43:186.
  26. Trautman, M. S., D. Collmer, S. S. Edwin, M. D. Mitchell, D. J. Dudley. 1996. Effect of interleukin-10 (IL-10) on IL-6 mRNA and cyclooxygenase-II (COX-II) protein expression in human decidual cells. Placenta 17:A47.
  27. Dudley, D. J., S. S. Edwin, A. Danerfield, M. D. Mitchell. 1996. Effect of interleukin-10 (IL-10) on prostaglandin E2 production by fetal chorion and amnion cells. J. Soc. Gynecol. Investig. 3:320A.
  28. Fortunato, S. J., R. Menon, K. Swan, S. J. Lombardi. 1996. Interleukin-10 inhibition of interleukin-6 in human amniochorion membrane: transcriptional regulation. Am. J. Obstet. Gynecol. 174:1057.
  29. Fortunato, S. J., R. Menon, S. J. Lombardi. 1997. Interleukin-10 and transforming growth factor {beta} inhibit amniochorion tumor necrosis factor-{alpha} production by contrasting mechanisms of action-therapeutic implications in prematurity. Am. J. Obstet. Gynecol. 177:803.[Medline]
  30. Dudley, D. J., A. Dangerfield, S. S. Edwin. 1996. Interleukin-10 (IL-10) prevents preterm birth in a mouse model of infection-mediated preterm labor. J. Soc. Gynecol. Investig. 3:67A.
  31. Terrone, D. A., B. K. Rinehart, J. P. Granger, P. S. Barrilleaux, J. N. Martin, W. A. Bennet. 2001. Interleukin-10 administration and bacterial endotoxin-induced preterm birth in a rat model. Obstet. Gynecol. 98:476.[Medline]
  32. Simpson, K. L., J. A. Keelan, M. D. Mitchell. 1998. Labor-associated changes in interleukin-10 production and its regulation by immunomodulators in human choriodecidua. J. Clin. Endocrinol. Metab. 83:4332.[Abstract/Free Full Text]
  33. Keelan, J. A., T. Sato, M. D. Mitchell. 1997. Interleukin (IL)-6 and IL-8 production by human amnion: regulation by cytokines, growth factors, glucocorticoids, phorbol esters, and bacterial lipopolysaccharide. Biol. Reprod. 77:1438.
  34. Gobieb, W. H., J. M. Abrams, T. Watson, T. Velu, J. S. Berek, O. Martinez-Maza. 1992. Presence of IL-10 in the ascites of patients with ovarian and other intra-abdominal cancers. Cytokine 4:385.[Medline]
  35. Rathjen, D., L. Cowan, L. Furphy, R. Aston. 1991. Antigenic structure of human tumour necrosis factor: recognition of distinct regions of TNF-{alpha} by different tumour cell receptors. Mol. Immunol. 28:79.[Medline]
  36. Keelan, J. A., T. A. Sato, W. R. Hansen, J. S. Gilmour, D. K. Gupta, N. A. Helsby, M. D. Mitchell. 1999. Interleukin-4 differentially regulates prostaglandin production in amnion-derived WISH cells stimulated with pro-inflammatory cytokines and epidermal growth factor. Prostaglandins Leukotrienes Essent. Fatty Acids 60:255.[Medline]
  37. Salafia, C. M., A. Ghidini, V. K. Minior. 1996. Uterine allergy: a cause of preterm birth?. Obstet. Gynecol. 88:451.[Medline]
  38. Casey, M. L., S. M. Cox, B. Beutler, L. Milewich, P. C. Macdonald. 1989. Cachectin-tumor necrosis factor-{alpha} formation in human decidua potential role of cytokines in infection-induced preterm labor. J. Clin. Invest. 83:430.
  39. Huang, Y.-S., S.-M. Wang, C.-C. Liu, Y.-J. Yang. 2002. Invasive Escherichia coli infection in infancy: clinical manifestation, outcome, and antimicrobial susceptibility. J Microbiol. Immunol. Infect. 35:103.[Medline]
  40. Pankuch, G. A., P. C. Applebaum, R. P. Lorenz, J. J. Botti, J. Schachter, R. L. Naeye. 1984. Placental microbiology and histology and the pathogenesis of chorioamnionitis. Obstet. Gynecol. 64:802.[Medline]
  41. Simpson, K. L., J. A. Keelan, M. D. Mitchell. 1999. Labour-associated changes in the regulation of production of immunomodulators in human amnion by glucocorticoids, bacterial lipopolysaccharide and pro-inflammatory cytokines. J. Reprod. Fertil. 116:321.[Abstract/Free Full Text]
  42. Mangge, H., H. K. Gallisti, G. Neuwirth, P. Liebmann, W. Kaulfersch, F. Beaufort, W. Muntean, K. Schauenstein. 1995. Serum cytokines in juvenile rheumatoid arthritis: correlation with conventional inflammation parameters and clinical subtypes. Arthritis Rheum. 38:211.[Medline]
  43. Maini, R. N., M. Elliott, F. M. Brennan, R. O. Williams, M. Feldmann. 1997. TNF blockade in rheumatoid arthritis: implications for therapy and pathogenesis. APMIS 105:257.[Medline]
  44. Probert, L., D. Plows, G. Kontogeorgos, G. Kollia. 1995. The type I interleukin-1 receptor acts in series with tumor necrosis factor (TNF) to induce arthritis in TNF-transgenic mice. Eur. J. Immunol. 25:1794.[Medline]
  45. Mohler, K. M., D. S. Torrance, C. A. Smith, R. G. Goodwin, K. E. Stremler, V. P. Fung, H. Madani, M. B. Widmer. 1993. Soluble tumor necrosis factor (TNF) receptors are effective therapeutic agents in lethal endotoxemia and function simultaneously as both TNF carriers and TNF antagonists. J. Immunol. 151:1548.[Abstract]
  46. Kasai, T., K. Inada, T. Takakuwa, Y. Yamada, Y. Inoue, T. Shimamura, S. Taniguchi, S. Sato, G. Wakabayashi, S. Endo. 1997. Anti-inflammatory cytokine levels in patients with septic shock. Res. Commun. Mol. Pathol. Pharmacol. 98:34.[Medline]
  47. Arntzen, K. J., A. M. Kjollesdal, J. Halgunset, L. Vatten, R. Austgulen. 1998. TNF, IL-1, IL-6, IL-8 and soluble TNF receptors in relation to chorioamnionitis and premature labor. J. Perinat. Med. 26:17.[Medline]
  48. Jin, H., R. Yang, S. A. Marsters, S. A. Bunting, F. M. Wurm, S. M. Chamow, A. Ashkenazi. 1994. Protection against rat endotoxic shock by p55 tumor necrosis factor (TNF) receptor immunoadhesin: comparison with anti-TNF monoclonal antibody. J. Infect. Dis. 170:1323.[Medline]
  49. Evans, T. J., D. Moyes, A. Carpenter, R. Martin, H. Loetscher, W. Lesslauer, J. Cohen. 1994. Protective effect of 55- but not 75-kD soluble tumor necrosis factor receptor-immunoglobulin G fusion proteins in an animal model of Gram-negative sepsis. J. Exp. Med. 180:2173.[Abstract/Free Full Text]
  50. Romero, R., Y. K. Wu, D. T. Brody, G. W. Duff, S. K. Durum. 1989. Human decidua: a source of interleukin-1. Obstet. Gynecol. 73:31.[Medline]
  51. Pomini, F., A. Caruso, J. R. G. Challis. 1999. Interleukin-10 modifies the effects of interleukin-1{beta} and tumor necrosis factor-{alpha} on the activity and expression of prostaglandin H synthase-2 and the NAD+-dependent 15-hydroxyprostaglandin dehydrogenase in cultured term human villous trophoblast and chorion trophoblast cells. J. Clin. Endocrinol. Metab. 84:4645.[Abstract/Free Full Text]
  52. Brown, N. L., S. A. Alvi, M. G. Elder, P. R. Bennett, M. H. F. Sullivan. 2000. The regulation of prostaglandin output from term intact fetal membranes by anti-inflammatory cytokines. Immunology 99:124.[Medline]
  53. Armstrong, L., N. Jordan, A. Millar. 1996. Interleukin 10 (IL-10) regulation of tumour necrosis factor {alpha} (TNF-{alpha}) from human alveolar macrophages and peripheral blood monocytes. Thorax 51:143.[Abstract/Free Full Text]
  54. Clarke, C. J. P., A. Hales, A. Hunt, B. M. J. Foxwell. 1998. IL-10-mediated suppression of TNF-{alpha} production is independent of its ability to inhibit NF{kappa}B activity. Eur. J. Immunol. 28:1719.[Medline]
  55. Wang, P. P., M. I. Wu, R. W. Egan Siegel, M. M. Billah. 1995. Interleukin (IL)-10 inhibits nuclear factor {kappa}-B (NF-{kappa}-B) activation in human monocytes: IL-10 and IL-4 suppress cytokines synthesis by different mechanisms. J. Biol. Chem. 270:9558.[Abstract/Free Full Text]
  56. Joyce, D. A., D. P. Gibbons, P. Green, J. H. Steer, M. Feldmann, F. M. Brennan. 1994. Two inhibitors of pro-inflammatory cytokine release, interleukin-10 and interleukin-4, have contrasting effects on release of soluble p75 tumor necrosis factor receptor by cultured monocytes. Eur. J. Immunol. 24:2699.[Medline]
  57. Dickensheets, H. L., S. L. Freeman, M. F. Smith, Jr, R. P. Donnelly. 1997. Interleukin-10 upregulates tumor necrosis factor receptor type-II (p75) gene expression in endotoxin-stimulated human monocytes. Blood 90:4162.[Abstract/Free Full Text]
  58. Cassatella, M. A., L. Meda, S. Gasperini, F. Calzetti, S. Bonora. 1994. Interleukin 10 (IL-10) upregulates IL-1 receptor antagonist production from lipopolysaccharide-stimulated human polymorphonuclear leukocytes by delaying mRNA degradation. J. Exp. Med. 179:1695.[Abstract/Free Full Text]
  59. Fidel, P. L., Jr, R. Romero, M. Ramirez, J. Cutright, S. S. Edwin, S. Lamarche, D. B. Cotton, M. D. Mitchell. 1994. Interleukin-1 receptor antagonist (IL-1ra) production by human amnion, chorion and decidua. Am. J. Reprod. Immunol. 32:1.
  60. Niiro, H., T. Otsuka, T. Tanabe, S. Hara, S. Kuga, Y. Nemoto, Y. Tanaka, H. Nakashima, S. Kitajima, M. Abe, Y. Niho. 1995. Inhibition by interleukin-10 of inducible cyclooxygenase expression in lipopolysaccharide-stimulated monocytes: its underlying mechanism in comparison with interleukin-4. Blood 85:3736.[Abstract/Free Full Text]
  61. Niiro, H., T. Otsuka, K. Izuhara, K. Yamaoka, K. Ohshima, T. Tanabe, S. Hara, Y. Nemoto, Y. Tanaka, H. Nakashima, Y. Niho. 1997. Regulation by interleukin-10 and interleukin-4 of cyclooxygenase-2 expression in human neutrophils. Blood 89:1621.[Abstract/Free Full Text]
  62. Cheung, P. Y. C., J. C. Walton, H. H. Tai, S. C. Riley, J. R. G Challis. 1992. Localization of 15-hydroxyprostaglandin dehydrogenase in human fetal membranes decidua and placenta during pregnancy. Gynecol. Obstet. Invest. 33:142.[Medline]
  63. Sangha, R. K., J. C. Walton, C. M. Ensor, H. H. Tai, J. R. G. Challis. 1994. Immunohistochemical localization, messenger ribonucleic acid abundance, and activity of 15-hydroxyprostaglandin dehydrogenase in placenta and fetal membranes during term and preterm labor. J. Clin. Endocrinol. Metab. 78:982.[Abstract]
  64. Van Meir, C. A., R. K. Sangha, J. C. Walton, S. G. Matthews, M. J. N. C. Keirse, J. R. G. Challis. 1996. Immunoreactive 15-hydroxyprostaglandin dehydrogenase (PGDH) is reduced in fetal membranes from patients at preterm delivery in the presence of infection. Placenta 17:291.[Medline]
  65. Keski-Nisula, L., M. L. Aalto, M. L. Katila, P. Kirkinen. 2000. Intrauterine inflammation at term: a histopathological study. Hum. Pathol. 31:841.[Medline]
  66. Young, A., A. J. Thomson, M. Ledingham, F. Jordan, I. A. Greer, J. E. Norman. 2002. Immunolocalization of proinflammatory cytokines in myometrium, cervix, and fetal membranes during human parturition at term. Biol. Reprod. 66:445.[Abstract/Free Full Text]
  67. Thomson, A. J., J. F. Telfer, A. Young, S. Campbell, C. J. Stewart, I. T. Cameron, I. A. Greer, J. E. Norman. 1999. Leukocytes infiltrate the myometrium during human parturition: further evidence that labour is an inflammatory process. Hum. Reprod. 14:229.[Abstract/Free Full Text]



This article has been cited by other articles:


Home page
 J. Leukoc. Biol.Home page
P.-h. Park, H. Huang, M. R. McMullen, K. Bryan, and L. E. Nagy
Activation of cyclic-AMP response element binding protein contributes to adiponectin-stimulated interleukin-10 expression in raw 264.7 macrophages
J. Leukoc. Biol., May 1, 2008; 83(5): 1258 - 1266.
[Abstract] [Full Text] [PDF]

Home page
 J. Biol. Chem.Home page
P.-h. Park, M. R. McMullen, H. Huang, V. Thakur, and L. E. Nagy
Short-term Treatment of RAW264.7 Macrophages with Adiponectin Increases Tumor Necrosis Factor-{alpha} (TNF-{alpha}) Expression via ERK1/2 Activation and Egr-1 Expression: ROLE OF TNF-{alpha} IN ADIPONECTIN-STIMULATED INTERLEUKIN-10 PRODUCTION
J. Biol. Chem., July 27, 2007; 282(30): 21695 - 21703.
[Abstract] [Full Text] [PDF]

Home page
 Biol. Reprod.Home page
M.-J. Leroy, E. Dallot, I. Czerkiewicz, T. Schmitz, and M. Breuiller-Fouche
Inflammation of Choriodecidua Induces Tumor Necrosis Factor Alpha-Mediated Apoptosis of Human Myometrial Cells
Biol Reprod, May 1, 2007; 76(5): 769 - 776.
[Abstract] [Full Text] [PDF]

Home page
 Biol. Reprod.Home page
W. Li, E. Unlugedik, A. D. Bocking, and J. R.G. Challis
The Role of Prostaglandins in the Mechanism of Lipopolysaccharide-Induced proMMP9 Secretion from Human Placenta and Fetal Membrane Cells
Biol Reprod, April 1, 2007; 76(4): 654 - 659.
[Abstract] [Full Text] [PDF]

Home page
 Proc. Natl. Acad. Sci. USAHome page
Y. Martinez de la Torre, C. Buracchi, E. M. Borroni, J. Dupor, R. Bonecchi, M. Nebuloni, F. Pasqualini, A. Doni, E. Lauri, C. Agostinis, et al.
Protection against inflammation- and autoantibody-caused fetal loss by the chemokine decoy receptor D6
PNAS, February 13, 2007; 104(7): 2319 - 2324.
[Abstract] [Full Text] [PDF]

Home page
 J. Immunol.Home page
S. A. Robertson, R. J. Skinner, and A. S. Care
Essential Role for IL-10 in Resistance to Lipopolysaccharide-Induced Preterm Labor in Mice
J. Immunol., October 1, 2006; 177(7): 4888 - 4896.
[Abstract] [Full Text] [PDF]

Home page
 Reproductive SciencesHome page
V. Zaga-Clavellina, H. Merchant-Larios, G. Garcia-Lopez, R. Maida-Claros, and F. Vadillo-Oretega
Differential Secretion of Matrix Metalloproteinase-2 and -9 After Selective Infection With Group B Streptococci in Human Fetal Membranes
Reproductive Sciences, May 1, 2006; 13(4): 271 - 279.
[Abstract] [PDF]

Home page
 Infect. Immun.Home page
N. Ismail, H. L. Stevenson, and D. H. Walker
Role of Tumor Necrosis Factor Alpha (TNF-{alpha}) and Interleukin-10 in the Pathogenesis of Severe Murine Monocytotropic Ehrlichiosis: Increased Resistance of TNF Receptor p55- and p75-Deficient Mice to Fatal Ehrlichial Infection
Infect. Immun., March 1, 2006; 74(3): 1846 - 1856.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Endocrinol. Metab.Home page
T. A. Sato and M. D. Mitchell
Molecular inhibition of histone deacetylation results in major enhancement of the production of IL-1beta in response to LPS
Am J Physiol Endocrinol Metab, March 1, 2006; 290(3): E490 - E493.
[Abstract] [Full Text] [PDF]

Home page
 Mol. Biol. CellHome page
M. D. Mitchell
Unique Suppression of Prostaglandin H Synthase-2 Expression by Inhibition of Histone Deacetylation, Specifically in Human Amnion but Not Adjacent Choriodecidua
Mol. Biol. Cell, January 1, 2006; 17(1): 549 - 553.
[Abstract] [Full Text] [PDF]

Home page
 EndocrinologyHome page
N. R. Chapman, I. Smyrnias, D. O. C. Anumba, G. N. Europe-Finner, and S. C. Robson
Expression of the GTP-Binding Protein (G{alpha}s) Is Repressed by the Nuclear Factor {kappa}B RelA Subunit in Human Myometrium
Endocrinology, November 1, 2005; 146(11): 4994 - 5002.
[Abstract] [Full Text] [PDF]

Home page
 J. Clin. Endocrinol. Metab.Home page
C. Nicola, A. V. Timoshenko, S. J. Dixon, P. K. Lala, and C. Chakraborty
EP1 Receptor-Mediated Migration of the First Trimester Human Extravillous Trophoblast: The Role of Intracellular Calcium and Calpain
J. Clin. Endocrinol. Metab., August 1, 2005; 90(8): 4736 - 4746.
[Abstract] [Full Text] [PDF]

Home page
 J. Immunol.Home page
S. Oger, C. Mehats, E. Dallot, D. Cabrol, and M.-J. Leroy
Evidence for a Role of Phosphodiesterase 4 in Lipopolysaccharide-Stimulated Prostaglandin E2 Production and Matrix Metalloproteinase-9 Activity in Human Amniochorionic Membranes
J. Immunol., June 15, 2005; 174(12): 8082 - 8089.
[Abstract] [Full Text] [PDF]

Home page
 Reproductive SciencesHome page
J. F. Johnstone, A. D. Bocking, E. Unlugedik, and J. R.G. Challis
The Effects of Chorioamnionitis and Betamethasone on 11{beta}, Hydroxysteroid Dehydrogenase Types 1 and 2 and the Glucocorticoid Receptor in Preterm Human Placenta
Reproductive Sciences, May 1, 2005; 12(4): 238 - 245.
[Abstract] [PDF]

Home page
 Biol. Reprod.Home page
V. Zaga, G. Estrada-Gutierrez, J. Beltran-Montoya, R. Maida-Claros, R. Lopez-Vancell, and F. Vadillo-Ortega
Secretions of Interleukin-1{beta} and Tumor Necrosis Factor {alpha} by Whole Fetal Membranes Depend on Initial Interactions of Amnion or Choriodecidua with Lipopolysaccharides or Group B Streptococci
Biol Reprod, October 1, 2004; 71(4): 1296 - 1302.
[Abstract] [Full Text] [PDF]

Home page
 J. Immunol.Home page
L. E. Marra, Z. X. Zhang, B. Joe, J. Campbell, G. A. Levy, J. Penninger, and L. Zhang
IL-10 Induces Regulatory T Cell Apoptosis by Up-Regulation of the Membrane Form of TNF-{alpha}
J. Immunol., January 15, 2004; 172(2): 1028 - 1035.
[Abstract] [Full Text] [PDF]

Home page
 Biol. Reprod.Home page
J.A. Keelan, J. Yang, R.J. Romero, T. Chaiworapongsa, K.W. Marvin, T.A. Sato, and M.D. Mitchell
Epithelial Cell-Derived Neutrophil-Activating Peptide-78 Is Present in Fetal Membranes and Amniotic Fluid at Increased Concentrations with Intra-amniotic Infection and Preterm Delivery
Biol Reprod, January 1, 2004; 70(1): 253 - 259.
[Abstract] [Full Text] [PDF]

Home page
 Mol. Pharmacol.Home page
E. B. E. Berry, R. Eykholt, R. J. A. Helliwell, R. S. Gilmour, M. D. Mitchell, and K. W. Marvin
Peroxisome Proliferator-Activated Receptor Isoform Expression Changes in Human Gestational Tissues with Labor at Term
Mol. Pharmacol., December 1, 2003; 64(6): 1586 - 1590.
[Abstract] [Full Text] [PDF]

This Article
Right arrow Abstract Freely available
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Request Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Sato, T. A.
Right arrow Articles by Mitchell, M. D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Sato, T. A.
Right arrow Articles by Mitchell, M. D.

HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS