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CUTTING EDGE |




*
Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy;
Shionogi Institute for Medical Science, Osaka, Japan; and
Department of Biotechnology, Section of General Pathology, University of Brescia, Italy
| Abstract |
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| Introduction |
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The current concept of the multistep process of leukocyte
recruitment into tissues envisions chemotactic agonists as one of the
key effector molecules (12, 13, 14). Chemokines are a superfamily of
chemotactic proteins that can be divided in four groups on the basis of
a cysteine structural motif. Most of the chemokines fall in two
subfamilies: the
(or CXC) chemokines, mainly active on neutrophils
and lymphocytes, and the ß (or CC) chemokines active on multiple
subsets of mononuclear cells, including DC. Lymphotactin (
or C
chemokines) and fractalkine (
or CX3C chemokines) may define two
additional groups of this superfamily (14, 15).
In previous studies we and others have reported that a set of chemokines and bioactive lipids are able to induce chemotactic and transendothelial migration in DC generated in vitro either from circulating monocytes or from CD34+ cells (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26). The present study was designed to explore how immune and inflammatory signals, which stimulate the Ag-presenting function of DC and concomitantly their trafficking to lymphoid organs, affect chemokine receptor expression and migration.
| Materials and Methods |
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Monocyte chemoattractant protein (MCP)-3 and IL-13 were a
gift from Dr. A. Minty (Sanofi Elf Bio Recherches, Labège,
France). MIP-1
, MIP-1ß, and RANTES were from PeproTech (Rocky
Hill, NJ). Recombinant ELC/MIP-3ß was prepared as described (27).
GM-CSF, TNF-
, and IL-1 were gifts from Sandoz (Basel, Switzerland),
BASF (Knoll, Germany), and Kyron (Milan, Italy), respectively. FMLP and
LPS (Escherichia coli 055:B5) were from Sigma (St. Louis,
MO).
Preparation of DC cultures
DC were differentiated in vitro as previously described (16, 28). Blood monocytes (>95% CD14+), obtained by Ficoll and Percoll gradients, were purified by panning on CD6-coated plastic dishes. Monocytes were cultured for 7 days at 1 x 106/ml in RPMI 1640 (Biochrom, Berlin, Germany), 10% FCS (HyClone, Logan, UT), with 50 ng/ml GM-CSF and 10 ng/ml IL-13. CD-34+ cells were purified from cord blood using Minimacs columns (Miltenyi Biotec, Bergisch-Gladbach, Germany) and cultured for 12 days with 50 ng/ml Stem Cell Factor (Amgen Biologic, Thousand Oaks, CA), 50 ng/ml GM-CSF, and 10 ng/ml TNF. Where specified, DC were further cultured in the presence of 10 ng/ml IL-1 or 10 ng/ml TNF or 10 ng/ml LPS for 48 h or as otherwise specified. CD40L-transfected J558L cells (29) (provided by Dr. Peter Lane, Basel Institute for Immunology, Switzerland), or mock control cells, were cocultured with DC at a 1:5 ratio. DC cultured with LPS, IL-1, TNF, or activated by CD40 ligation for 48 h, expressed typical maturation markers and high APC activity. For instance, after CD40L activation, DC were >70% CD83+; >70% CD80+; MHC class II bright (mean channel fluorescence >900); and highly effective in mixed lymphocyte reaction (MLR) (e.g., at 3% APC T cell ratio, [3H]Tdr uptake was >70,000 cpm; stimulation index (S.I.) >35). Preliminary experiments confirmed that incubation of DC with the J558 mock cell line did not induce cell maturation.
Northern blot analysis
Total RNA was extracted by the guanidinium thiocyanate method, blotted, and hybridized as described (17, 30). cDNA probes were prepared as described (27, 30). To evaluate mRNA half-life, DC were cocultured with CD40L-transfected J558L cells or mock cells for 48 h, and then actinomycin-D (1 µg/ml; ActD; Sigma) was added for different times (28 h) before Northern blot evaluation (30). mRNA half-life was determined by densitometric analysis.
Migration assay
Cell migration was evaluated using a chemotaxis chamber (Neuroprobe, Pleasanton, CA) and polycarbonate filter (5 µm pore size; Neuroprobe) as previously described (16). Cell suspensions (0.71 x 106/ml) were incubated at 37°C for 90 min. Results are expressed as the mean number of migrated cells in five high power fields (x100). Each experiment was performed in triplicate.
Transmigration assay
Transendothelial migration was performed in polycarbonate transwell inserts (5 µm pore, Corning, Costar, Cambridge, MA) as previously described (21). Inserts were coated with human endothelial cells (EC) prepared from umbilical cord vein, grown as monolayer. 51Cr-labeled DC were seeded in the upper compartment, and chemoattractants were placed in the lower compartment. After 1 h of incubation at 37°C, the radioactivity present in the lower compartment was evaluated.
| Results and Discussion |
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. The effect of IL-1 and CD40L stimulation on DC migration to
ELC was detectable after 24 h stimulation and was maximal after
48 h (Fig. 1
response was much faster. Both IL-1 and CD40L were already
active after 1 h stimulation (>70% inhibition; n
= 2), and the inhibition was nearly maximal (>80%) after 4 h
(Fig. 1
Northern blot experiments showed that mRNA levels for CCR7, the ELC
receptor (27), were barely detectable, in immature DC and after 4
h stimulation with CD40L, but were strongly up-regulated after 24 to
48 h stimulation (Fig. 1
D). Up-regulation of CCR7
expression in CD40L-stimulated DC was 63- ± 13-fold (n
= 7; range 15- to 103-fold). On the contrary, expression of CCR1 and
CCR5, the two main CC chemokine receptors in DC (17, 23), was inhibited
in CD40L-treated DC, and inhibition was nearly maximal after 4 h
(Fig. 1
D). This effect was associated with a decreased
half-life of CCR1 mRNA (2.5 and 1.5 h for control and
CD40L-stimulated cells, respectively). These results are reminiscent of
regulation of chemokine receptor mRNA levels in monocytes centered on
transcript stability (30, 32, 33).
The inhibitory effect of CD40 ligation was present also when other
chemotactic agonists were used. MIP-1ß and RANTES, two other CCR1 and
CCR5 ligands, and formylated peptides (FMLP), a prototypic bacterial
chemotactic stimulus that binds an unrelated receptor, were completely
inhibited after DC activation by CD40L (Fig. 2
A). When
transendothelial migration was investigated, DC stimulated with CD40L
transmigrated across endothelium in response to ELC more effectively
than control cells. In contrast, the response to CCR1 and CCR5 ligands
(MIP-1
, RANTES, and MIP-1ß) was completely abrogated in
CD40L-stimulated DC (Fig. 2
B).
Previous studies have revealed heterogeneity among DC in responsiveness
to chemokines. In particular, CCR6 was expressed only on DC obtained
from CD34+ precursors and not on monocyte-derived DC, and
only the former responded to MIP-3
/liver and activation-regulated
chemokine (LARC)/Exodus (20, 22). Therefore, the effect of
maturation on the chemotactic response of DC derived from
CD34+ cord blood cells was also investigated. As shown in
Figure 2
C, CD34-derived DC migrated to MIP-1
and ELC with
approximately equal efficiency. Activation of CD34-derived DC by IL-1
or CD40L for 48 h strongly increased the response to ELC and,
concomitantly, reduced the migration to MIP-1
. Similar results were
obtained with mouse CD34+ cell-derived DC (A. Vecchi and A.
Mantovani, unpublished observations). TNF and LPS, two molecules that
share with CD40L the ability to trigger DC maturation, also inhibited
DC migration to MIP-1
and up-regulated the chemotactic response to
ELC (Fig. 3
A). In parallel,
CCR1 and CCR5 expression was down-regulated, while CCR7 expression was
strongly increased (Fig. 3
B).
|
, RANTES, and monocyte
chemoattractant protein (MCP)-1) was undetectable by sensitive
ELISA (data not shown) and included also the response to FMLP, an
unrelated chemotactic factor of bacterial origin.
Activation of DC with IL-1, TNF, LPS, and CD40L strongly augmented the
chemotactic response to ELC and the expression of CCR7, the ELC
receptor. This CC chemokine, previously considered lymphoid specific
(27, 31), is at present the strongest agonist for chemotaxis and
transendothelial migration for DC. Interestingly, inhibition of
response to the inducible CCR1 and CCR5 agonists preceded augmentation
of the ELC response (see Fig. 1
C). These results are
consistent with a "weigh anchor/hoist the sail" model, based on
changes in chemokine receptors, for the trafficking to lymphoid organs
of DC after Ag capture. Inhibition of responsiveness to inducible
chemokines, such as MIP-1
, MIP-1ß, or RANTES, would allow
Ag-loaded DC to leave sites of infection and inflammation ("weigh
anchor"). Conversely, the slower induction of expression of CCR7
would prepare trafficking DC to respond to ELC ("hoist the sail"),
which is constitutively expressed in lymphoid organs and would be
instrumental to arrest (34) and transmigration at these sites.
| Footnotes |
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2 S.S. and P.A. equally contributed to this study. ![]()
3 Address correspondence and reprint requests to Dr. Silvano Sozzani, Istituto di Ricerche Farmacologiche "Mario Negri," Via Eritrea 62, 20157 Milan, Italy. E-mail address: ![]()
4 Abbreviations used in this paper:DC, dendritic cell; MIP-3ß, macrophage inflammatory protein-3ß; ELC, EBI1 ligand chemokine; GM-CSF, granulocyte-macrophage CSF. ![]()
Received for publication April 27, 1998. Accepted for publication June 2, 1998.
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W. L. W. Chang, N. Baumgarth, D. Yu, and P. A. Barry Human Cytomegalovirus-Encoded Interleukin-10 Homolog Inhibits Maturation of Dendritic Cells and Alters Their Functionality J. Virol., August 15, 2004; 78(16): 8720 - 8731. [Abstract] [Full Text] [PDF] |
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U. Ritter, F. Wiede, D. Mielenz, Z. Kiafard, J. Zwirner, and H. Korner Analysis of the CCR7 expression on murine bone marrow-derived and spleen dendritic cells J. Leukoc. Biol., August 1, 2004; 76(2): 472 - 476. [Abstract] [Full Text] [PDF] |
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N. Sanchez-Sanchez, L. Riol-Blanco, G. de la Rosa, A. Puig-Kroger, J. Garcia-Bordas, D. Martin, N. Longo, A. Cuadrado, C. Cabanas, A. L. Corbi, et al. Chemokine receptor CCR7 induces intracellular signaling that inhibits apoptosis of mature dendritic cells Blood, August 1, 2004; 104(3): 619 - 625. [Abstract] [Full Text] [PDF] |
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G. D'Amico, M. Vulcano, C. Bugarin, G. Bianchi, G. Pirovano, M. Bonamino, V. Marin, P. Allavena, E. Biagi, and A. Biondi CD40 activation of BCP-ALL cells generates IL-10-producing, IL-12-defective APCs that induce allogeneic T-cell anergy Blood, August 1, 2004; 104(3): 744 - 751. [Abstract] [Full Text] [PDF] |
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S.-C. Yang, S. Hillinger, K. Riedl, L. Zhang, L. Zhu, M. Huang, K. Atianzar, B. Y. Kuo, B. Gardner, R. K. Batra, et al. Intratumoral Administration of Dendritic Cells Overexpressing CCL21 Generates Systemic Antitumor Responses and Confers Tumor Immunity Clin. Cancer Res., April 15, 2004; 10(8): 2891 - 2901. [Abstract] [Full Text] [PDF] |
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M. Moutaftsi, P. Brennan, S. A. Spector, and Z. Tabi Impaired Lymphoid Chemokine-Mediated Migration due to a Block on the Chemokine Receptor Switch in Human Cytomegalovirus-Infected Dendritic Cells J. Virol., March 15, 2004; 78(6): 3046 - 3054. [Abstract] [Full Text] [PDF] |
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S. Baize, J. Kaplon, C. Faure, D. Pannetier, M.-C. Georges-Courbot, and V. Deubel Lassa Virus Infection of Human Dendritic Cells and Macrophages Is Productive but Fails to Activate Cells J. Immunol., March 1, 2004; 172(5): 2861 - 2869. [Abstract] [Full Text] [PDF] |
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Z. Guo, M. Zhang, H. An, W. Chen, S. Liu, J. Guo, Y. Yu, and X. Cao Fas ligation induces IL-1{beta}-dependent maturation and IL-1{beta}-independent survival of dendritic cells: different roles of ERK and NF-{kappa}B signaling pathways Blood, December 15, 2003; 102(13): 4441 - 4447. [Abstract] [Full Text] [PDF] |
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S. Russo, B. Bussolati, I. Deambrosis, F. Mariano, and G. Camussi Platelet-Activating Factor Mediates CD40-Dependent Angiogenesis and Endothelial-Smooth Muscle Cell Interaction J. Immunol., November 15, 2003; 171(10): 5489 - 5497. [Abstract] [Full Text] [PDF] |
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H. Jing, E. Vassiliou, and D. Ganea Prostaglandin E2 inhibits production of the inflammatory chemokines CCL3 and CCL4 in dendritic cells J. Leukoc. Biol., November 1, 2003; 74(5): 868 - 879. [Abstract] [Full Text] [PDF] |
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M. Chieppa, G. Bianchi, A. Doni, A. Del Prete, M. Sironi, G. Laskarin, P. Monti, L. Piemonti, A. Biondi, A. Mantovani, et al. Cross-Linking of the Mannose Receptor on Monocyte-Derived Dendritic Cells Activates an Anti-Inflammatory Immunosuppressive Program J. Immunol., November 1, 2003; 171(9): 4552 - 4560. [Abstract] [Full Text] [PDF] |
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V. Wittamer, J.-D. Franssen, M. Vulcano, J.-F. Mirjolet, E. Le Poul, I. Migeotte, S. Brezillon, R. Tyldesley, C. Blanpain, M. Detheux, et al. Specific Recruitment of Antigen-presenting Cells by Chemerin, a Novel Processed Ligand from Human Inflammatory Fluids J. Exp. Med., October 6, 2003; 198(7): 977 - 985. [Abstract] [Full Text] [PDF] |
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W. Matsuyama, M. Faure, and T. Yoshimura Activation of Discoidin Domain Receptor 1 Facilitates the Maturation of Human Monocyte-Derived Dendritic Cells Through the TNF Receptor Associated Factor 6/TGF-{beta}-Activated Protein Kinase 1 Binding Protein 1{beta}/p38{alpha} Mitogen-Activated Protein Kinase Signaling Cascade J. Immunol., October 1, 2003; 171(7): 3520 - 3532. [Abstract] [Full Text] [PDF] |
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A. Grolleau, D. E. Misek, R. Kuick, S. Hanash, and J. J. Mule Inducible Expression of Macrophage Receptor Marco by Dendritic Cells Following Phagocytic Uptake of Dead Cells Uncovered by Oligonucleotide Arrays J. Immunol., September 15, 2003; 171(6): 2879 - 2888. [Abstract] [Full Text] [PDF] |
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M. Jefford, M. Schnurr, T. Toy, K.-A. Masterman, A. Shin, T. Beecroft, T. Y. Tai, K. Shortman, M. Shackleton, I. D. Davis, et al. Functional comparison of DCs generated in vivo with Flt3 ligand or in vitro from blood monocytes: differential regulation of function by specific classes of physiologic stimuli Blood, September 1, 2003; 102(5): 1753 - 1763. [Abstract] [Full Text] [PDF] |
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L. Skelton, M. Cooper, M. Murphy, and A. Platt Human Immature Monocyte-Derived Dendritic Cells Express the G Protein-Coupled Receptor GPR105 (KIAA0001, P2Y14) and Increase Intracellular Calcium in Response to its Agonist, Uridine Diphosphoglucose J. Immunol., August 15, 2003; 171(4): 1941 - 1949. [Abstract] [Full Text] [PDF] |
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N. E. Annels, C. E.T. da Costa, F. A. Prins, A. Willemze, P. C.W. Hogendoorn, and R. M. Egeler Aberrant Chemokine Receptor Expression and Chemokine Production by Langerhans Cells Underlies the Pathogenesis of Langerhans Cell Histiocytosis J. Exp. Med., May 19, 2003; 197(10): 1385 - 1390. [Abstract] [Full Text] [PDF] |
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G. de la Rosa, N. Longo, J. L. Rodriguez-Fernandez, A. Puig-Kroger, A. Pineda, A. L. Corbi, and P. Sanchez-Mateos Migration of human blood dendritic cells across endothelial cell monolayers: adhesion molecules and chemokines involved in subset-specific transmigration J. Leukoc. Biol., May 1, 2003; 73(5): 639 - 649. [Abstract] [Full Text] [PDF] |
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O. TURECI, H. BIAN, F. O. NESTLE, L. RADDRIZZANI, J. A. ROSINSKI, A. TASSIS, H. HILTON, M. WALSTEAD, U. SAHIN, and J. HAMMER Cascades of transcriptional induction during dendritic cell maturation revealed by genome-wide expression analysis FASEB J, May 1, 2003; 17(8): 836 - 847. [Abstract] [Full Text] [PDF] |
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M. Dauer, B. Obermaier, J. Herten, C. Haerle, K. Pohl, S. Rothenfusser, M. Schnurr, S. Endres, and A. Eigler Mature Dendritic Cells Derived from Human Monocytes Within 48 Hours: A Novel Strategy for Dendritic Cell Differentiation from Blood Precursors J. Immunol., April 15, 2003; 170(8): 4069 - 4076. [Abstract] [Full Text] [PDF] |
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K. Schlienger, C. S. Chu, E. Y. Woo, P. M. Rivers, A. J. Toll, B. Hudson, M. V. Maus, J. L. Riley, Y. Choi, G. Coukos, et al. TRANCE- and CD40 Ligand-matured Dendritic Cells Reveal MHC Class I-restricted T Cells Specific for Autologous Tumor in Late-Stage Ovarian Cancer Patients Clin. Cancer Res., April 1, 2003; 9(4): 1517 - 1527. [Abstract] [Full Text] [PDF] |
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M. Vulcano, S. Struyf, P. Scapini, M. Cassatella, S. Bernasconi, R. Bonecchi, A. Calleri, G. Penna, L. Adorini, W. Luini, et al. Unique Regulation of CCL18 Production by Maturing Dendritic Cells J. Immunol., April 1, 2003; 170(7): 3843 - 3849. [Abstract] [Full Text] [PDF] |
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M. D. Fleming, J. L. Pinkus, S. W. Alexander, C. Tam, M. Loda, S. E. Sallan, K. E. Nichols, D. F. Carpentieri, G. S. Pinkus, and B. J. Rollins Coincident expression of the chemokine receptors CCR6 and CCR7 by pathologic Langerhans cells in Langerhans cell histiocytosis Blood, April 1, 2003; 101(7): 2473 - 2475. [Abstract] [Full Text] [PDF] |
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S. Vuckovic, M. Kim, D. Khalil, C. J. Turtle, G. V. Crosbie, N. Williams, L. Brown, K. Williams, C. Kelly, P. Stravos, et al. Granulocyte-colony stimulating factor increases CD123hi blood dendritic cells with altered CD62L and CCR7 expression Blood, March 15, 2003; 101(6): 2314 - 2317. [Abstract] [Full Text] [PDF] |
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K. Abe, F. O. Yarovinsky, T. Murakami, A. N. Shakhov, A. V. Tumanov, D. Ito, L. N. Drutskaya, K. Pfeffer, D. V. Kuprash, K. L. Komschlies, et al. Distinct contributions of TNF and LT cytokines to the development of dendritic cells in vitro and their recruitment in vivo Blood, February 15, 2003; 101(4): 1477 - 1483. [Abstract] [Full Text] [PDF] |
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S. Nakae, Y. Komiyama, S. Narumi, K. Sudo, R. Horai, Y.-i. Tagawa, K. Sekikawa, K. Matsushima, M. Asano, and Y. Iwakura IL-1-induced tumor necrosis factor-{alpha} elicits inflammatory cell infiltration in the skin by inducing IFN-{gamma}-inducible protein 10 in the elicitation phase of the contact hypersensitivity response Int. Immunol., February 1, 2003; 15(2): 251 - 260. [Abstract] [Full Text] [PDF] |
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E. Ferrero, D. Belloni, P. Contini, C. Foglieni, M. E. Ferrero, M. Fabbri, A. Poggi, and M. R. Zocchi Transendothelial migration leads to protection from starvation-induced apoptosis in CD34+CD14+ circulating precursors: evidence for PECAM-1 involvement through Akt/PKB activation Blood, January 1, 2003; 101(1): 186 - 193. [Abstract] [Full Text] [PDF] |
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I. Verbovetski, H. Bychkov, U. Trahtemberg, I. Shapira, M. Hareuveni, O. Ben-Tal, I. Kutikov, O. Gill, and D. Mevorach Opsonization of Apoptotic Cells by Autologous iC3b Facilitates Clearance by Immature Dendritic Cells, Down-regulates DR and CD86, and Up-regulates CC Chemokine Receptor 7 J. Exp. Med., December 16, 2002; 196(12): 1553 - 1561. [Abstract] [Full Text] [PDF] |
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B. J. Weigel, N. Nath, P. A. Taylor, A. Panoskaltsis-Mortari, W. Chen, A. M. Krieg, K. Brasel, and B. R. Blazar Comparative analysis of murine marrow-derived dendritic cells generated by Flt3L or GM-CSF/IL-4 and matured with immune stimulatory agents on the in vivo induction of antileukemia responses Blood, December 1, 2002; 100(12): 4169 - 4176. [Abstract] [Full Text] [PDF] |
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K. A. Tolba, W. J. Bowers, J. Muller, V. Housekneckt, R. E. Giuliano, H. J. Federoff, and J. D. Rosenblatt Herpes Simplex Virus (HSV) Amplicon-mediated Codelivery of Secondary Lymphoid Tissue Chemokine and CD40L Results in Augmented Antitumor Activity Cancer Res., November 15, 2002; 62(22): 6545 - 6551. [Abstract] [Full Text] [PDF] |
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D. Messmer, J.-M. Jacque, C. Santisteban, C. Bristow, S.-Y. Han, L. Villamide-Herrera, E. Mehlhop, P. A. Marx, R. M. Steinman, A. Gettie, et al. Endogenously Expressed nef Uncouples Cytokine and Chemokine Production from Membrane Phenotypic Maturation in Dendritic Cells J. Immunol., October 15, 2002; 169(8): 4172 - 4182. [Abstract] [Full Text] [PDF] |
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Y. Cui, Y. Le, H. Yazawa, W. Gong, and J. M. Wang Potential role of the formyl peptide receptor-like 1 (FPRL1) in inflammatory aspects of Alzheimer's disease J. Leukoc. Biol., October 1, 2002; 72(4): 628 - 635. [Abstract] [Full Text] [PDF] |
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H. Matsue, C. Yang, K. Matsue, D. Edelbaum, M. Mummert, and A. Takashima Contrasting Impacts of Immunosuppressive Agents (Rapamycin, FK506, Cyclosporin A, and Dexamethasone) on Bidirectional Dendritic Cell-T Cell Interaction During Antigen Presentation J. Immunol., October 1, 2002; 169(7): 3555 - 3564. [Abstract] [Full Text] [PDF] |
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S. Beaulieu, D. F. Robbiani, X. Du, E. Rodrigues, R. Ignatius, Y. Wei, P. Ponath, J. W. Young, M. Pope, R. M. Steinman, et al. Expression of a Functional Eotaxin (CC Chemokine Ligand 11) Receptor CCR3 by Human Dendritic Cells J. Immunol., September 15, 2002; 169(6): 2925 - 2936. [Abstract] [Full Text] [PDF] |
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E. Scandella, Y. Men, S. Gillessen, R. Forster, and M. Groettrup Prostaglandin E2 is a key factor for CCR7 surface expression and migration of monocyte-derived dendritic cells Blood, July 30, 2002; 100(4): 1354 - 1361. [Abstract] [Full Text] [PDF] |
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M. Idzko, S. Dichmann, D. Ferrari, F. Di Virgilio, A. la Sala, G. Girolomoni, E. Panther, and J. Norgauer Nucleotides induce chemotaxis and actin polymerization in immature but not mature human dendritic cells via activation of pertussis toxin-sensitive P2y receptors Blood, July 18, 2002; 100(3): 925 - 932. [Abstract] [Full Text] [PDF] |
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C. D. Richters, I. Mayen, C. E. G. Havenith, R. H. J. Beelen, and E. W. A. Kamperdijk Rat monocyte-derived dendritic cells function and migrate in the same way as isolated tissue dendritic cells J. Leukoc. Biol., April 1, 2002; 71(4): 582 - 587. [Abstract] [Full Text] [PDF] |
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A. la Sala, S. Sebastiani, D. Ferrari, F. Di Virgilio, M. Idzko, J. Norgauer, and G. Girolomoni Dendritic cells exposed to extracellular adenosine triphosphate acquire the migratory properties of mature cells and show a reduced capacity to attract type 1 T lymphocytes Blood, March 1, 2002; 99(5): 1715 - 1722. [Abstract] [Full Text] [PDF] |
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M. F. Lipscomb and B. J. Masten Dendritic Cells: Immune Regulators in Health and Disease Physiol Rev, January 1, 2002; 82(1): 97 - 130. [Abstract] [Full Text] [PDF] |
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Y.-H. Cui, Y. Le, W. Gong, P. Proost, J. Van Damme, W. J. Murphy, and J. M. Wang Bacterial Lipopolysaccharide Selectively Up-Regulates the Function of the Chemotactic Peptide Receptor Formyl Peptide Receptor 2 in Murine Microglial Cells J. Immunol., January 1, 2002; 168(1): 434 - 442. [Abstract] [Full Text] [PDF] |
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S. Parlato, S. M. Santini, C. Lapenta, T. Di Pucchio, M. Logozzi, M. Spada, A. M. Giammarioli, W. Malorni, S. Fais, and F. Belardelli Expression of CCR-7, MIP-3beta , and Th-1 chemokines in type I IFN-induced monocyte-derived dendritic cells: importance for the rapid acquisition of potent migratory and functional activities Blood, November 15, 2001; 98(10): 3022 - 3029. [Abstract] [Full Text] [PDF] |
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A. Bouchon, C. Hernandez-Munain, M. Cella, and M. Colonna A Dap12-Mediated Pathway Regulates Expression of Cc Chemokine Receptor 7 and Maturation of Human Dendritic Cells J. Exp. Med., October 15, 2001; 194(8): 1111 - 1122. [Abstract] [Full Text] [PDF] |
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S. Sharma, M. Stolina, L. Zhu, Y. Lin, R. Batra, M. Huang, R. Strieter, and S. M. Dubinett Secondary Lymphoid Organ Chemokine Reduces Pulmonary Tumor Burden in Spontaneous Murine Bronchoalveolar Cell Carcinoma Cancer Res., September 1, 2001; 61(17): 6406 - 6412. [Abstract] [Full Text] [PDF] |
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E. PANTHER, M. IDZKO, Y. HEROUY, H. RHEINEN, P. J. GEBICKE-HAERTER, U. MROWIETZ, S. DICHMANN, and J. NORGAUER Expression and function of adenosine receptors in human dendritic cells FASEB J, September 1, 2001; 15(11): 1963 - 1970. [Abstract] [Full Text] [PDF] |
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G. Penna, S. Sozzani, and L. Adorini Cutting Edge: Selective Usage of Chemokine Receptors by Plasmacytoid Dendritic Cells J. Immunol., August 15, 2001; 167(4): 1862 - 1866. [Abstract] [Full Text] [PDF] |
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S.-A. Kellermann and L. M. McEvoy The Peyer's Patch Microenvironment Suppresses T Cell Responses to Chemokines and Other Stimuli J. Immunol., July 15, 2001; 167(2): 682 - 690. [Abstract] [Full Text] [PDF] |
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G.B. Toews Cytokines and the lung Eur. Respir. J., July 2, 2001; 18(34_suppl): 3S - 17s. [Abstract] [Full Text] [PDF] |
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T. Takayama, A. E. Morelli, N. Onai, M. Hirao, K. Matsushima, H. Tahara, and A. W. Thomson Mammalian and Viral IL-10 Enhance C-C Chemokine Receptor 5 but Down-Regulate C-C Chemokine Receptor 7 Expression by Myeloid Dendritic Cells: Impact on Chemotactic Responses and In Vivo Homing Ability J. Immunol., June 15, 2001; 166(12): 7136 - 7143. [Abstract] [Full Text] [PDF] |
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