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T RM cells develop from circulating effector memory T cell precursors in response to antigen. The main role in formation of T RM cells has CD103 and expression of this integrin is dependent on the cytokine TGF-β. CD8 + effector T cells that lack TGF-β fail to upregulate CD103, and subsequently do not differentiate into T RM cells.
Unlike the naive B cells involved in the primary immune response the memory B cell response is slightly different. The memory B cell has already undergone clonal expansion , differentiation and affinity maturation , so it is able to divide multiple times faster and produce antibodies with much higher affinity (especially IgG ).
In other projects Wikidata item; Appearance. ... (IATA code TRM) Science and technology ... T RM cell or tissue-resident memory T cell, ...
Additional populations of memory T cells are now known to exist. These include tissue-resident memory T (Trm) cells and virtual memory T cells. [35] The single unifying theme for all memory T cell subtypes is that they are long-lived and can expand quickly to large numbers of effector T cells upon encountering their cognate antigen.
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There are two dendritic cells subtypes; plasmacytoid (pDC) and myeloid (mDC) dendritic cells. pDCs are found within the blood and are able to cross present antigens directly or from neighboring apoptotic cells, but the main physiological significance of pDCs is the secretion of type I IFN in response to viral infections.
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