نتایج جستجو برای: lymphoid organs
تعداد نتایج: 98857 فیلتر نتایج به سال:
In the human lymphoreticular system, the alpha and beta subunits of S-100 protein are found in ordinary monocyte-macrophages and non-phagocytic histiocytes such as Langerhans cells and interdigitating reticulum cells, respectively. The beta subunit is also present in some CD8+ T cells. In the present study, we investigated the ontogeny of these histiocytes and lymphocytes in humans. Yolk sacs a...
The gut associated immune system fences off potentially harmful intestinal antigens from the systemic circulation and induces systemic tolerance against luminal antigens. Intestinal immune responses against luminal antigens include IgA secretion and induction of regulatory cells. Unlike few other cytokines, lymphotoxin alpha/beta regulates the development of intestinal lymphoid organs. The embr...
Significant advances have been made in the field of immunophysiology since Selye discovered that acute stressors reduce the size of lymphoid organs. It is known that a variety of hormones other than glucocorticoids affect functional activities of lymphoid cells and macrophages. This paper summarizes recent findings of the effects of glucocorticoids and other hormones on lymphoid cells of domest...
Introduction Dendritic cells (DCs) are bone marrow-derived cells, which migrate to lymphoid and non-lymphoid organs via blood. Liver DCs are believed to play an important role in the regulation of hepatic allograft acceptance. However, because of inherent difficulties in isolating adequate numbers of DCs from liver, limited information is available on the phenotype and functions of liver DCs. ...
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