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001-es BibID:BIBFORM019938
Első szerző:Réthi Bence (biológus, immunológus)
Cím:SLAM/SLAM interactions inhibit CD40-induced production of inflammatory cytokines in monocyte-derived dendritic cells / Bence Réthi, Péter Gogolák, Istvan Szatmari, Ágota Veres, Erika Erdős, Laszlo Nagy, Éva Rajnavölgyi, Cox Terhorst, Árpád Lányi
Dátum:2006
ISSN:0006-4971
Megjegyzések:Signaling lymphocyte activation molecule (SLAM, CD150, or SLAMF1) is a self-ligand receptor on the surface of activated T- and B-lymphocytes, macrophages, and dendritic cells (DCs). Here we examine the effect of SLAM/SLAM interactions on CD40L-induced CD40 signaling pathways in human DCs. CD40L-expressing L929 cells induced DCs to produce interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-alpha), and IL-12, which was strongly inhibited by coexpression of SLAM on the surface of the L929 cells. Similarly, transfection of DCs with SLAM strongly reduced CD40L-induced IL-12 production. Furthermore, the negative effect of SLAM/SLAM interactions on CD40L-induced DC activation was also detected in the presence of lipopolysaccharide (LPS). LPS-Induced IL-12 secretion, however, was not inhibited by SLAM engagement. CD40L-activated DCs affected by exposure to SLAM/SLAM engagement were impaired in their ability to induce differentiation of naive T lymphocytes into interferon-gamma (IFN-gamma)-producing T-helper 1 (Th1) effector cells. These inhibitory effects were not the result of a general unresponsiveness of DCs to CD40L, as SLAM/SLAM interactions did not prevent CD40L-induced up-regulation of CD83, CD86, or human leukocyte antigen (HLA)-DQ on the surface of DCs. Taken together, the results indicate that SLAM/SLAM interactions inhibit CD40-induced signal transduction in monocyte-derived dendritic cells, an effect that was not detectable in earlier studies using anti-SLAM monoclonal antibodies.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
linked lymphoproliferative-disease
lymphocytic activation molecule
controls T-cell
measles virus
differential expression
immune-responses
encoding gene
CD150 SLAM
in-vitro
SAP
Megjelenés:Blood. - 107 : 7 (2006), p. 2821-2829. -
További szerzők:Gogolák Péter (1968-) (biológus, immunológus) Szatmári István (1971-) (biológus) Veres Ágota (laboráns) Erdős Erika Nagy László (1966-) (molekuláris sejtbiológus, biokémikus) Rajnavölgyi Éva (1950-) (immunológus) Terhorst, Cox Lányi Árpád (1962-) (biológus, immunológus)
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