منابع مشابه
Regulatory B-Cells in Transplantation
B-cells have been long accepted as the main cellular component in humoral responses. Their effector function is based on antibody and cytokine production. The development of donor-specific antibodies by B-cells has deleterious consequences in graft and patients survival. Recently, a new subset of IL-10-secreting B-cells with regulatory capacity in allergic and autoimmune diseases has been shown...
متن کاملHuman IgM+CD27+ B cells: memory B cells or "memory" B cells?
Memory B cells are generated in germinal centers (GC) and contribute to serological immunity by rapidly differentiating into plasma cells. Human memory B cells can be identified by the expression of CD27. These cells exhibit more rapid responses than naive (CD27-) B cells following stimulation in vitro, consistent with the heightened kinetics of secondary responses in vivo. CD27+ B cells expres...
متن کاملNoncognate function of B cells in transplantation.
How B cells affect the outcome of transplants is a question of enduring interest. Initial efforts to answer that question suggested, wrongly, that B cells have no impact on transplantation. Now, however, B cells are known to influence not only the outcome of vascularized grafts through the production of anti-donor antibodies but also the competence of cellular immunity through a number of physi...
متن کاملAutoreactivity in human IgG+ memory B cells.
More than half of the nascent B cells in humans initially express autoreactive antibodies. However, most of these autoantibodies are removed from the repertoire at two checkpoints before maturation into naive B cells. A third checkpoint excludes remaining autoantibodies from the antigen-experienced IgM(+) memory B cell pool. Nevertheless, low-affinity self-reactive antibodies are frequently fou...
متن کاملB cells and transplantation: an educational resource.
Allogeneic hematopoietic cell transplantation (HCT) offers a unique opportunity to monitor the development of immune reconstitution using the patient as his or her own control. Furthermore, the donor serves as an HLA-identical normal control and source of adoptive immune transfer. Donor hematopoietic stem cells (HSCs) differentiate and proliferate to repopulate all blood lineages providing norm...
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ژورنال
عنوان ژورنال: Transplantation
سال: 2015
ISSN: 0041-1337
DOI: 10.1097/tp.0000000000000545