نتایج جستجو برای: thymocyte
تعداد نتایج: 6432 فیلتر نتایج به سال:
background: there is accumulating evidence that a polyphenol present in olive oil, oleuropein, has antioxidant, anti-inflammatory and anti-apoptotic effects. this study aimed at determining the anti-apoptotic effect of oleuropein (ole) on dexamethasone-induced apoptosis of mouse thymocytes. method: mice were randomly divided to four groups as follow: dexamethasone (dex)-treated group (20 mg/kg;...
OBJECTIVE Thymocyte apoptosis is a major event in sepsis; however, how this process is regulated remains poorly understood. APPROACH AND RESULTS Septic stress induces glucocorticoids production which triggers thymocyte apoptosis. Here, we used scavenger receptor BI (SR-BI)-null mice, which are completely deficient in inducible glucocorticoids in sepsis, to investigate the regulation of thymoc...
Recent study of human thymocyte-thymic epithelial (TE) cell interactions has demonstrated that thymocytes bind to TE cells, and a consequence of this binding is the provision of accessory cell signals by TE cells for phytohemagglutinin (PHA)-induced mature thymocyte activation. In this paper we report on studies of the molecules involved in TE cell-dependent mature thymocyte activation. TE-thym...
Runx1 (AML1) has multiple functions in thymocyte development, including CD4 repression in immature thymocytes, expression of TCRbeta, and efficient beta-selection. To determine the functional domains of Runx1 important for thymocyte development, we cultured Runx1-deficient murine fetal liver (FL) cells on OP9-Delta-like 1 murine stromal cells, which express Delta-like 1 and support thymocyte de...
Background: The goal of Induction therapy is to prevent acute rejection during the early posttransplantation period by providing a high degree of Immunosuppression at the time of transplantation. Induction therapy is often considered essential to optimize outcomes, especially in patients at high risk for poor short-term outcomes. The optimal prophylactic induction immunosuppressive therapy to p...
BACKGROUND A combination of horse anti-thymocyte globulin and cyclosporine produces responses in 60-70% of patients with severe aplastic anemia. We performed a phase II study of rabbit anti-thymocyte globulin and cyclosporine as first-line therapy for severe aplastic anemia. DESIGN AND METHODS Twenty patients with severe aplastic anemia treated with rabbit anti-thymocyte globulin were compare...
Experiments have generated a plethora of data about the genes, molecules, and cells involved in thymocyte development. Here, we use a computer-driven simulation that uses data about thymocyte development to generate an integrated dynamic representation-a novel technology we have termed reactive animation (RA). RA reveals emergent properties in complex dynamic biological systems. We apply RA to ...
T lymphocyte development requires a series of interactions between developing thymocytes and thymic epithelial (TE) cells. In this paper we show that TE cells in the developing thymus express Pref-1, a Delta-like cell-surface molecule. In fetal thymus organ cultures (FTOC), thymocyte cellularity was increased by the exogenous dimeric Pref-1 fusion protein, but was reduced by the soluble Pref-1 ...
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