In vivo analyses of thymopoiesis in mice defective in signaling through Kit and gammac or Kit and IL-7Ralpha demonstrate synergy and partial complementation of gammac or IL-7-mediated signaling by the Kit signaling pathway. Our molecular analysis in T-lymphoid cells as well as in nonhematopoietic cells shows that Kit and IL-7R signaling pathways directly interact. KL-mediated activation of Kit ...

conclusions this study suggests that decrease in levels of tlr3 and tlr7 expression is a mechanism that may enable hcv to evade the host innate immune response. results in both groups, we had 13 males and 12 females with a mean age of 48.7 ± 16. tlr3 (6.23 ± 0.91 vs. 3.89 ± 0.85, p < 0.001) and tlr7 (1.48 ± 0.82 vs-1.33 ± 1.18, p < 0.001) expressions were significantly lower in patients with ch...

B ackground: The T cell attracting chemokine CCL18 is produced by antigen presenting cells and a role for CCLI8 has been suggested in the pathogenesis of a variety of diseases. Rheumatoid arthritis (RA) is one of these conditions, in which abundant CCL18 production is present. Although Th2 cytokines and IL-10 are known to have an effect on CCLI8 production, there are several gaps in our knowled...

One hypothesis is that the activation of innate immunity and release cytokines breaks down blood brain barrier (BBB) causes neuroinflammation. Here, I present a case COVID-19 associated MIS-C (multisystem inflammatory syndrome in children) with neurological complications manifesting as encephalopathy cytotoxic lesion corpus callosum (CLOCC) on MRI, association extremely elevated levels circulat...

Relatively little is known about the relationship of lymphoid-associated gene expression to the proliferation and differentiation potential of early human bone marrow lymphoid progenitors. Surface expression of interleukin-7 (IL-7) receptor-alpha (IL-7R alpha), a component of the high-affinity receptor for the lymphoid precursor growth factor IL-7, defined a CD34+ progenitor subset lacking the ...

Virus-specific CD8+ T cells play a central role in the outcome of several viral infections, including hepatitis B virus (HBV) infection. A key feature of virus-specific CD8+ T cells is the development of memory. The mechanisms resulting in the establishment of T-cell memory are still only poorly understood. It has been suggested that T-cell memory may depend on the survival of virus-specific CD...

BACKGROUND Factors influencing the depletion of CD4(+) cells and the restoration of CD4(+) cells after antiretroviral therapy are not completely understood. Recently, attention has been paid to interleukin (IL)-7 and its receptor (CD127). We analyzed the influence of T cell activation and of suppression of viremia with antiretroviral therapy on this system, as well as its role in CD4(+) cell re...