Inhibition of CD40-Induced N-Ras Activation
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L-Glutamin-Induced Inhibition of Endotoxemia by Reducing Pre-Inflammatory Cytokines, Nitric Oxide, and CD40 Expression
Introduction: Researchers have been investigating the major pathogens involved in septic shock caused by lipopolysaccharide in recent years. Moreover, they have been concerned about the use of appropriate drugs to intervene with the main pathogenesis of the disease. This study aimed to investigate the effect of L-Glutamine as an HSP70 inducer in reducing pre-inflammatory cytokines and effective...
متن کاملDifferential coupling of membrane Ig and CD40 to the extracellularly regulated kinase signaling pathway.
Coupling of membrane Ig (mIg) and CD40 to the extracellularly regulated kinase (ERK) signal transduction pathway was examined in the WEHI-231 B lymphoma and normal mouse B cells. Cross-linking mIg induces ERK activation in both WEHI-231 and normal B cells. In contrast, CD40 cross-linking failed to induce ERK activation in WEHI-231, but signals through CD40 were more effective than mIg as a stim...
متن کاملThe CD40-induced signaling pathway in endothelial cells resulting in the overexpression of vascular endothelial growth factor involves Ras and phosphatidylinositol 3-kinase.
Ligation of endothelial cell (EC) CD40 induces the expression of several proinflammatory cytokines as well as angiogenesis factors, including vascular endothelial growth factor (VEGF). Moreover, despite the reported importance of CD40 in cell-mediated immunity, little is known of the CD40-induced signaling pathways in EC. In this study, we have investigated the function of the Ras signaling pat...
متن کاملSHP-1 plays a crucial role in CD40 signaling reciprocity.
CD40 plays dual immunoregulatory roles in Leishmania major infection and tumor regression. The functional duality emerges from CD40-induced reciprocal p38MAPK and ERK-1/2 phosphorylations. Because phosphotyrosine-based signaling in hematopoietic cells is regulated by the phosphotyrosine phosphatase SHP-1, which is not implied in CD40 signaling, we examined whether SHP-1 played any roles in CD40...
متن کاملTumor Necrosis Factor Receptor–associated Factor 6 (TRAF6) Stimulates Extracellular Signal–regulated Kinase (ERK) Activity in CD40 Signaling Along a Ras-independent Pathway
CD40 activates nuclear factor kappa B (NF kappa B) and the mitogen-activated protein kinase (MAPK) subfamily, including extracellular signal-regulated kinase (ERK). The CD40 cytoplasmic tail interacts with tumor necrosis factor receptor-associated factor (TRAF)2, TRAF3, TRAF5, and TRAF6. These TRAF proteins, with the exception of TRAF3, are required for NF kappa B activation. Here we report tha...
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تاریخ انتشار 2015