|
|
||||||||
CUTTING EDGE |





*
Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan;
Department of Surgery, University of Tsukuba School of Medicine, Ibaraki, Japan;
Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan;
§
Laboratory Animal Research Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan; and
¶
Core Research for Evolutional Science and Technology, Japan Science and Technology Corporation, Tokyo, Japan
| Abstract |
|---|
|
|
|---|
| Introduction |
|---|
|
|
|---|
, are type II membrane proteins. However, a
soluble form of FasL (sFasL) is naturally produced by
metalloproteinase-mediated processing such as TNF-
(2, 3).
The physiologic roles of the shedding of TNF family members have not
been well characterized. FasL induces apoptotic cell death by binding to its receptor, Fas (also called APO-1 or CD95), which is a member of the TNF receptor family (4). FasL is predominantly expressed in activated T cells and NK cells, while Fas is ubiquitously expressed on various cells. FasL-mediated cell death is involved in the T or NK cell-mediated cytotoxicity, some pathologic tissue damages, and the regulation of lymphocyte homeostasis (4). FasL is also expressed in the testis (5), eye (6), and some malignant tumor cells (7, 8), which has been proposed to contribute to their immune-privileged status. FasL expressed in such immune-privileged tissues may eliminate infiltrating immune cells. By applying this concept, Lau et al. reported that syngeneic myoblasts expressing FasL protected allogeneic pancreatic islets from immune rejection when cotransplanted under the kidney capsule (9).
In contrast, we and others have found that enforced FasL expression in tumor cells or islets elicited neutrophilic inflammation and destruction of the graft. When implanted s.c. or i.p., various tumor cells expressing FasL induced neutrophil infiltration and rapid rejection (10). Similarly, expression of functional FasL in the pancreatic islets of FasL-transgeneic mice induced granulocytic infiltrates and damage of the islets (11, 12). In this context, we here verified the chemotactic activity of FasL against polymorphonuclear neutrophils (PMN). A novel signaling function of Fas, which appears to be independent of the functional death domain, was noted.
| Materials and Methods |
|---|
|
|
|---|
A recombinant soluble form of human FasL (sFasL) was produced by using the baculovirus expression system as described previously (13). Briefly, the full-length FasL cDNA was subcloned into PVL1393 (PharMingen, San Diego, CA) and transfected into Spodoptera frugiperda (SF9) cells according to the manufacturers instruction. The culture supernatant was applied to an affinity column of protein Sepharose A conjugated with an anti-FasL (NOK-1) mAb (2). The bound sFasL was eluted with 0.1 M glycine-HCl buffer (pH 4.0). The concentration of sFasL was determined by sandwich ELISA as described previously (2).
Preparation of PMN
C3H/He wild-type and lpr mice were purchased from SLC (Shizuoka, Japan). CBA lprcg mice, which have a loss-of-function mutation in the death domain of the Fas molecule (14), had been backcrossed 12 times to C3H mice, and the C3H lprcg mice were maintained in the animal facilities of Tokyo University and used for the experiments. Mouse PMN were isolated from peritoneal exudates 45 h after an i.p. injection of 3 ml 4% thioglycollate (Difco, Detroit, MI) as described previously (15). Mouse PMN preparations contained >87% Gr-1+ cells as estimated by flow cytometry. Human PMN were isolated from citrate-anticoagulated peripheral blood of healthy donors by Polymorphoprep (Nycomed Pharma, Oslo, Norway) centrifugation techniques as described previously (16). The purity of human PMN was >95% as estimated by Wright-Giemsa stain. PMN were suspended in PBS containing 1 mM CaCl2 and 1 mM MgSO4.
Cell culture
Human promyelocytic leukemia HL-60 cells were maintained in RPMI 1640 medium (Nissui, Tokyo, Japan) containing 10% FBS, 2 mM glutamine, 100 µg/ml streptomycin, and 100 U/ml penicillin. To differentiate HL-60 cells into neutrophilic or monocytic lineage, the cells were cultured with 1.3% DMSO or 5 nM PMA for 4 days, respectively (17, 18), and then used for the chemotaxis assay. The differentiation was confirmed by Wright-Giemsa stain of cytospin preparations and expression of cell surface CD11b (17, 18).
Chemotaxis assay
Cell migration was assayed by employing a modified Boyden chamber with cellulose nitrate filter, as described previously (19). We used a 3-µm pore size filter for PMN and untreated or DMSO-treated HL-60 cells and a 5-µm pore size filter for PMA-treated HL-60 cells. Varying concentrations of purified sFasL, anti-Fas mAb (CH-11 (IgM, Medical Biologic Laboratories, Nagoya, Japan) or DX-2 (IgG1, PharMingen)), or control mAb (mouse IgM or IgG1, PharMingen) in PBS supplemented with 1 mM Ca2+, Mg2+, and 1 mg/ml BSA (Fraction V, Sigma, St. Louis, MO) were added to the upper or lower wells of the chamber. One million cells in 250 µl PBS supplemented with 1 mM Ca2+, Mg2+, and 1 mg/ml BSA were placed into the upper wells. The entire apparatus was incubated at 37°C for 45 min for PMN and untreated or DMSO-treated HL-60 cells, and 90 min for PMA-treated HL-60 cells. The membrane was then fixed with neutral buffered formalin for 30 min and stained with hematoxylin, hematoxylin and eosin, or Wright-Giemsa. With a x40 objective, the distance (µm) from the top of the filter to the furthest two cells at the same focal plane was measured microscopically. This measure was taken for 10 fields across the filter. In each assay, human IL-8 (Genzyme, Cambridge, MA) or FMLP was used as a positive control. For a blocking experiment, anti-FasL mAb (NOK-1) (2) or control mAb (mouse IgG1, PharMingen) at a concentration of 10 µg/ml was added to both upper and lower chambers.
Statistical analysis
The statistical significance of differences from control was evaluated by Students t test. Values of p < 0.05 were considered significant.
| Results |
|---|
|
|
|---|
|
To characterize the cells undergoing chemotaxis to sFasL, we stained the filters with hematoxylin and eosin or Wright-Giemsa. The migrating cells had no eosinophilic or basophilic granules (not shown), indicating that the cells undergoing chemotaxis were neutrophils.
Next, we examined whether ligation of Fas by anti-Fas mAb might
also induce PMN migration. We used IgM (CH-11)- or IgG (DX-2)-type
anti-Fas mAbs, which are cytotoxic or noncytotoxic in solution,
respectively. As indicated in Fig. 1
B, not only cytotoxic
CH-11 but also noncytotoxic DX-2 induced PMN migration, suggesting that
the signal transduction for the chemotaxis may be different from that
for apoptosis.
It has been well characterized that a human promyelocytic leukemia cell
line HL-60 can be differentiated into neutrophils or monocytes in the
presence of DMSO or PMA, respectively (17, 18). Untreated,
DMSO-treated, and PMA-treated HL-60 cells expressed Fas at a comparable
level as estimated by FACS analysis (data not shown). Then, we examined
the ability of sFasL to induce migration of the HL-60 cells that were
differentiated into neutrophilic or monocytic lineage. As shown in Fig. 2
, A and B, both
untreated and DMSO-treated HL-60 cells significantly responded to
sFasL. Similarly, PMA-treated HL-60 cells also responded to sFasL (Fig. 2
C). These results suggest that sFasL has a chemotactic
activity against not only neutrophils but also monocytes.
|
|
| Discussion |
|---|
|
|
|---|
lpr, but not lpr
wild-type, bone
marrow chimeras rejected the FasL transfectants with neutrophilic
infiltrates (10). Therefore, it has been speculated that FasL might
directly act on infiltrating cells that were mainly composed of
neutrophils. Although the present study does not exclude a possible
contribution of other indirect mechanisms, it is strongly suggested
that the chemotactic action of sFasL is directly involved in the
FasL-induced inflammation in vivo. We used human sFasL in this study. We and other groups demonstrated that mouse FasL also induced a similar inflammation (10, 11, 12). Although mouse sFasL has been shown to have little cytotoxic activity (3), it may have another function such as chemotaxis, which remains to be determined in further studies. Recently, several groups demonstrated a greatly reduced cytotoxic activity of sFasL as compared with membrane-bound FasL (20, 21, 22), arguing against a systemic cytotoxic role of sFasL. Consistently, the sFasL preparation used in this study did not enhance the apoptosis of Jurkat cells (13) and PMN (data not shown) after several hours of incubation. Our present results suggest that sFasL can act proinflammatory by recruiting PMN rather than proapoptotically in certain pathophysiologic conditions.
Recently, signaling pathways for Fas-mediated apoptosis have
been extensively characterized. Recruitment of FADD/Mort-1 and
activation of caspase-8 mediate apoptosis through the
activation of down-stream caspases (23). Fas can also induce
apoptosis through RIP and RAIDD followed by caspase-2
activation (24), or through Daxx followed by jun
kinase activation (25). In contrast, signaling for Fas-mediated
inflammation has not been characterized. So far, it has been
demonstrated that crosslinking of Fas by Ab could induce activation of
the transcription factor NF-
B (26, 27) and secretion of IL-8 (28) in
certain cell lines. In this study, both IgM- and IgG-type anti-Fas
mAbs induced PMN migration (Fig. 1
B). Although it is
generally believed that trimerization of Fas is needed for the
induction of apoptosis, these results suggest that
trimerization may not be necessary for the induction of chemotaxis, but
dimerization of Fas may be sufficient. Furthermore, in the present
study the chemotaxis was normally induced in PMN obtained from
lprcg mice (Fig. 3
C)
whose Fas molecules have a point mutation in the death domain and
cannot induce apoptosis due to the inability to recruit FADD or
RIP (14). These data suggest that some other signaling components may
be recruited to the Fas molecules independently of the known death
domain-interacting molecules for the chemotactic activity, which
remained to be identified in further studies.
It has been shown that soluble human TNF-
has a chemotactic activity
against human PMN in vitro (29, 30). The chemotactic activity of sFasL
demonstrated in this study appears to be comparable to that of TNF-
described in these studies. Thus, it will be interesting to see whether
other members in the TNF family have similar function. It has been
reported that low concentrations of TNF-
act synergistically with
IL-1 to induce neutrophil infiltration in vivo (31). Similarly, it is
possible that low concentrations of sFasL may enhance proinflammatory
function of other cytokines. Actually, sFasL has been detected in the
sera of patients suffering from some inflammatory diseases such as
systemic lupus erythematosus (32), rheumatoid arthritis (32),
Sjogrens syndrome (32), leukemia (33), lymphohistiocytosis (34),
myocarditis (35), and alcoholic liver disease (36). Recently, Hashimoto
et al. (37) reported that sFasL was detected in the joints of patients
with rheumatoid arthritis, where neutrophil influx is often observed.
The sFasL was produced by lymphocytes in the synovial fluid, and
cleaved sFasL accumulated in the inflamed joints. They also reported
that the concentration of sFasL was remarkably higher in patients with
severe rheumatoid arthritis than in patients with its mild form.
Further clinical studies may elucidate the pathophysiologic role of
sFasL at a local site of inflammation in other diseases.
| Footnotes |
|---|
2 Address correspondence and reprint requests to Dr. Ken-ichiro Seino, Department of Surgery, University of Tsukuba School of Medicine, 1-1-1 Tennodai, Tsukuba Science-City, Ibaraki 305-8575, Japan. E-mail address: ![]()
3 The first two authors contributed equally to this work. ![]()
4 Abbreviations used in this paper: FasL, Fas ligand; sFasL, soluble FasL; PMN, polymorphonuclear neutrophils. ![]()
Received for publication June 1, 1998. Accepted for publication August 24, 1998.
| References |
|---|
|
|
|---|
B and induces interleukin-6 production. J. Inflamm. 45:161.[Medline]
B independently of its cytotoxic function. J. Biol. Chem. 271:8991.
and ligation of Fas antigen. J. Immunol. 155:4147.[Abstract]
and ß: comparison to recombinant interferon-
and interleukin-1
. Blood 70:979.This article has been cited by other articles:
![]() |
E. S. Yolcu, X. Gu, C. Lacelle, H. Zhao, L. Bandura-Morgan, N. Askenasy, and H. Shirwan Induction of Tolerance to Cardiac Allografts Using Donor Splenocytes Engineered to Display on Their Surface an Exogenous Fas Ligand Protein J. Immunol., July 15, 2008; 181(2): 931 - 939. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. Reardon, A. Wang, and D. M. McKay Transient Local Depletion of Foxp3+ Regulatory T Cells during Recovery from Colitis via Fas/Fas Ligand-Induced Death J. Immunol., June 15, 2008; 180(12): 8316 - 8326. [Abstract] [Full Text] [PDF] |
||||
![]() |
V. Minas, U. Jeschke, S.N. Kalantaridou, D.U. Richter, T. Reimer, I. Mylonas, K. Friese, and A. Makrigiannakis Abortion is associated with increased expression of FasL in decidual leukocytes and apoptosis of extravillous trophoblasts: a role for CRH and urocortin Mol. Hum. Reprod., September 1, 2007; 13(9): 663 - 673. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. Fingleton, K. J. Carter, and L. M. Matrisian Loss of Functional Fas Ligand Enhances Intestinal Tumorigenesis in the Min Mouse Model Cancer Res., May 15, 2007; 67(10): 4800 - 4806. [Abstract] [Full Text] [PDF] |
||||
![]() |
F. Heinzelmann, V. Jendrossek, K. Lauber, K. Nowak, T. Eldh, R. Boras, R. Handrick, M. Henkel, C. Martin, S. Uhlig, et al. Irradiation-Induced Pneumonitis Mediated by the CD95/CD95-Ligand System. J Natl Cancer Inst, September 6, 2006; 98(17): 1248 - 1251. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. Sato, K. Iwabuchi, I. Nagaoka, Y. Adachi, N. Ohno, H. Tamura, K. Seyama, Y. Fukuchi, H. Nakayama, F. Yoshizaki, et al. Induction of human neutrophil chemotaxis by Candida albicans-derived {beta}-1,6-long glycoside side-chain-branched {beta}-glucan J. Leukoc. Biol., July 1, 2006; 80(1): 204 - 211. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. Sharma, H. Bagavant, W. N. Jarjour, S.-S. J. Sung, and S.-T. Ju The Role of Fas in the Immune System Biology of IL-2R{alpha} Knockout Mice: Interplay among Regulatory T Cells, Inflammation, Hemopoiesis, and Apoptosis J. Immunol., August 1, 2005; 175(3): 1965 - 1973. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. J. Lum, G. Bren, R. McClure, and A. D. Badley Elimination of Senescent Neutrophils by TNF-Related Apotosis-Inducing Ligand J. Immunol., July 15, 2005; 175(2): 1232 - 1238. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Engelbert and M. S. Gilmore Fas Ligand but Not Complement Is Critical for Control of Experimental Staphylococcus aureus Endophthalmitis Invest. Ophthalmol. Vis. Sci., July 1, 2005; 46(7): 2479 - 2486. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. S. Soderstrom, S. D. Nyberg, and J. E. Eriksson CD95 capping is ROCK-dependent and dispensable for apoptosis J. Cell Sci., May 15, 2005; 118(10): 2211 - 2223. [Abstract] [Full Text] [PDF] |
||||
![]() |
N. Askenasy, E. S. Yolcu, I. Yaniv, and H. Shirwan Induction of tolerance using Fas ligand: a double-edged immunomodulator Blood, February 15, 2005; 105(4): 1396 - 1404. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Giroux and F. Denis CD1d-unrestricted human NKT cells release chemokines upon Fas engagement Blood, January 15, 2005; 105(2): 703 - 710. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Umemura, T. Kawabe, K. Shudo, H. Kidoya, M. Fukui, M. Asano, Y. Iwakura, G. Matsuzaki, R. Imamura, and T. Suda Involvement of IL-17 in Fas ligand-induced inflammation Int. Immunol., August 1, 2004; 16(8): 1099 - 1108. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. Matute-Bello, R. K. Winn, T. R. Martin, and W. C. Liles Sustained Lipopolysaccharide-Induced Lung Inflammation in Mice Is Attenuated by Functional Deficiency of the Fas/Fas Ligand System Clin. Vaccine Immunol., March 1, 2004; 11(2): 358 - 361. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. R Balkundi, J. A Ziegler, J. F Watchko, C. Craven, and M. Trucco Regulation of FasL/Fas in Human Trophoblasts: Possible Implications for Chorioamnionitis Biol Reprod, August 1, 2003; 69(2): 718 - 724. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Hoves, S. W. Krause, D. Halbritter, H.-G. Zhang, J. D. Mountz, J. Scholmerich, and M. Fleck Mature But Not Immature Fas Ligand (CD95L)-Transduced Human Monocyte-Derived Dendritic Cells Are Protected from Fas-Mediated Apoptosis and Can Be Used as Killer APC J. Immunol., June 1, 2003; 170(11): 5406 - 5413. [Abstract] [Full Text] [PDF] |
||||
![]() |
N. Askenasy, E. S. Yolcu, Z. Wang, and H. Shirwan Display of Fas Ligand Protein on Cardiac Vasculature as a Novel Means of Regulating Allograft Rejection Circulation, March 25, 2003; 107(11): 1525 - 1531. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Buonocore, F. Paulart, A. Le Moine, M. Braun, I. Salmon, S. Van Meirvenne, K. Thielemans, M. Goldman, and V. Flamand Dendritic cells overexpressing CD95 (Fas) ligand elicit vigorous allospecific T-cell responses in vivo Blood, February 15, 2003; 101(4): 1469 - 1476. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. A. Renshaw, J. S. Parmar, V. Singleton, S. J. Rowe, D. H. Dockrell, S. K. Dower, C. D. Bingle, E. R. Chilvers, and M. K. B. Whyte Acceleration of Human Neutrophil Apoptosis by TRAIL J. Immunol., January 15, 2003; 170(2): 1027 - 1033. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. Iwabuchi and I. Nagaoka Lactosylceramide-enriched glycosphingolipid signaling domain mediates superoxide generation from human neutrophils Blood, July 30, 2002; 100(4): 1454 - 1464. [Abstract] [Full Text] [PDF] |
||||
![]() |
F. H. Igney and P. H. Krammer Immune escape of tumors: apoptosis resistance and tumor counterattack J. Leukoc. Biol., June 1, 2002; 71(6): 907 - 920. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Shimizu, K. Fukuo, S. Nagata, T. Suhara, M. Okuro, K. Fujii, Y. Higashino, M. Mogi, Y. Hatanaka, and T. Ogihara Increased plasma levels of the soluble form of fas ligand in patients with acute myocardial infarction and unstable angina pectoris J. Am. Coll. Cardiol., February 20, 2002; 39(4): 585 - 590. [Abstract] [Full Text] [PDF] |
||||
![]() |
I. Monleon, M. J. Martinez-Lorenzo, L. Monteagudo, P. Lasierra, M. Taules, M. Iturralde, A. Pineiro, L. Larrad, M. A. Alava, J. Naval, et al. Differential Secretion of Fas Ligand- or APO2 Ligand/TNF-Related Apoptosis-Inducing Ligand-Carrying Microvesicles During Activation-Induced Death of Human T Cells J. Immunol., December 15, 2001; 167(12): 6736 - 6744. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. M. Hohlbaum, M. S. Gregory, S.-T. Ju, and A. Marshak-Rothstein Fas Ligand Engagement of Resident Peritoneal Macrophages In Vivo Induces Apoptosis and the Production of Neutrophil Chemotactic Factors J. Immunol., December 1, 2001; 167(11): 6217 - 6224. [Abstract] [Full Text] [PDF] |
||||
![]() |
H. Matsue, K. Matsue, M. Kusuhara, T. Kumamoto, K. Okumura, H. Yagita, and A. Takashima Immunosuppressive properties of CD95L-transduced "killer" hybrids created by fusing donor- and recipient-derived dendritic cells Blood, December 1, 2001; 98(12): 3465 - 3472. [Abstract] [Full Text] [PDF] |
||||
![]() |
V. M. Borges, H. Falcao, J. H. Leite-Junior, L. Alvim, G. P. Teixeira, M. Russo, A. F. Nobrega, M. F. Lopes, P. M. Rocco, W. F. Davidson, et al. FAS Ligand Triggers Pulmonary Silicosis J. Exp. Med., July 16, 2001; 194(2): 155 - 164. [Abstract] [Full Text] [PDF] |
||||
![]() |
F. H. Falcone, A. G. Rossi, R. Sharkey, A. P. Brown, D. I. Pritchard, and R. M. Maizels Ascaris suum-Derived Products Induce Human Neutrophil Activation via a G Protein-Coupled Receptor That Interacts with the Interleukin-8 Receptor Pathway Infect. Immun., June 1, 2001; 69(6): 4007 - 4018. [Abstract] [Full Text] [PDF] |
||||
![]() |
Y. Miura, N. Misawa, N. Maeda, Y. Inagaki, Y. Tanaka, M. Ito, N. Kayagaki, N. Yamamoto, H. Yagita, H. Mizusawa, et al. Critical Contribution of Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand (Trail) to Apoptosis of Human Cd4+T Cells in HIV-1-Infected Hu-Pbl-Nod-Scid Mice J. Exp. Med., March 5, 2001; 193(5): 651 - 660. [Abstract] [Full Text] [PDF] |
||||
![]() |
W. Roth, S. Isenmann, M. Nakamura, M. Platten, W. Wick, P. Kleihues, M. Bähr, H. Ohgaki, A. Ashkenazi, and M. Weller Soluble Decoy Receptor 3 Is Expressed by Malignant Gliomas and Suppresses CD95 Ligand-induced Apoptosis and Chemotaxis Cancer Res., March 1, 2001; 61(6): 2759 - 2765. [Abstract] [Full Text] |
||||
![]() |
C. K. Behrens, F. H. Igney, B. Arnold, P. Moller, and P. H. Krammer CD95 Ligand-Expressing Tumors Are Rejected in Anti-Tumor TCR Transgenic Perforin Knockout Mice J. Immunol., March 1, 2001; 166(5): 3240 - 3247. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. Matute-Bello, R. K. Winn, M. Jonas, E. Y. Chi, T. R. Martin, and W. C. Liles Fas (CD95) Induces Alveolar Epithelial Cell Apoptosis in Vivo : Implications for Acute Pulmonary Inflammation Am. J. Pathol., January 1, 2001; 158(1): 153 - 161. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. L. Wahlsten, H. L. Gitchell, C.-C. Chan, B. Wiggert, and R. R. Caspi Fas and Fas Ligand Expressed on Cells of the Immune System, not on the Target Tissue, Control Induction of Experimental Autoimmune Uveitis J. Immunol., November 15, 2000; 165(10): 5480 - 5486. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. Waku, T. Fujiwara, J. Shao, T. Itoshima, T. Murakami, M. Kataoka, S. Gomi, J. A. Roth, and N. Tanaka Contribution of CD95 Ligand-Induced Neutrophil Infiltration to the Bystander Effect in p53 Gene Therapy for Human Cancer J. Immunol., November 15, 2000; 165(10): 5884 - 5890. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. Le'Negrate, E. Selva, P. Auberger, B. Rossi, and P. Hofman Sustained Polymorphonuclear Leukocyte Transmigration Induces Apoptosis in T84 Intestinal Epithelial Cells J. Cell Biol., September 18, 2000; 150(6): 1479 - 1488. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Villunger, L. A. O'Reilly, N. Holler, J. Adams, and A. Strasser FAS Ligand, Bcl-2, Granulocyte Colony-Stimulating Factor, and p38 Mitogen-Activated Protein Kinase: Regulators of Distinct Cell Death and Survival Pathways in Granulocytes J. Exp. Med., September 5, 2000; 192(5): 647 - 658. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. AOSHIBA, S. YASUI, J. TAMAOKI, and A. NAGAI The Fas/Fas-Ligand System Is Not Required for Bleomycin-induced Pulmonary Fibrosis in Mice Am. J. Respir. Crit. Care Med., August 1, 2000; 162(2): 695 - 700. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. LORZ, A. ORTIZ, P. JUSTO, S. GONZÁLEZ-CUADRADO, N. DUQUE, C. GÓMEZ-GUERRERO, and J. EGIDO Proapoptotic Fas Ligand Is Expressed by Normal Kidney Tubular Epithelium and Injured Glomeruli J. Am. Soc. Nephrol., July 1, 2000; 11(7): 1266 - 1277. [Abstract] [Full Text] |
||||
![]() |
J.A. D. Cooper Jr. Pulmonary Fibrosis . Pathways Are Slowly Coming into Light Am. J. Respir. Cell Mol. Biol., May 1, 2000; 22(5): 520 - 523. [Full Text] |
||||
![]() |
M. D. Josephs, F. R. Bahjat, K. Fukuzuka, R. Ksontini, C. C. Solorzano, C. K. Edwards III, C. L. Tannahill, S. L. D. MacKay, E. M. Copeland III, and L. L. Moldawer Lipopolysaccharide and D-galactosamine-induced hepatic injury is mediated by TNF-alpha and not by Fas ligand Am J Physiol Regulatory Integrative Comp Physiol, May 1, 2000; 278(5): R1196 - R1201. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. M. Hohlbaum, S. Moe, and A. Marshak-Rothstein Opposing Effects of Transmembrane and Soluble FAS Ligand Expression on Inflammation and Tumor Cell Survival J. Exp. Med., April 3, 2000; 191(7): 1209 - 1220. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Ortiz, C. Lorz, and J. Egido The Fas ligand/Fas system in renal injury Nephrol. Dial. Transplant., August 1, 1999; 14(8): 1831 - 1834. [Full Text] [PDF] |
||||
![]() |
M. Shimizu, A. Fontana, Y. Takeda, H. Yagita, T. Yoshimoto, and A. Matsuzawa Induction of Antitumor Immunity with Fas/APO-1 Ligand (CD95L)-Transfected Neuroblastoma Neuro-2a Cells J. Immunol., June 15, 1999; 162(12): 7350 - 7357. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. Ottonello, G. Tortolina, M. Amelotti, and F. Dallegri Soluble Fas Ligand Is Chemotactic for Human Neutrophilic Polymorphonuclear Leukocytes J. Immunol., March 15, 1999; 162(6): 3601 - 3606. [Abstract] [Full Text] [PDF] |
||||
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |