Search results
Results From The WOW.Com Content Network
B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte subtype. [1] They function in the humoral immunity component of the adaptive immune system. [1] B cells produce antibody molecules which may be either secreted or inserted into the plasma membrane where they serve as a part of B-cell receptors. [2]
IL-2 - a cytokine key activating factor for T cells and B cells secreted by T cells. [4] Cells in early-stage activation differentiate in response to IL-2 and all B cells proliferate in the presence of IL-2. [11] IL-2 exhibits an additive affect to BCGF when both are present. [9]
FO B cells express high levels of IgD, and CD23; lower levels of CD21 and IgM; and no CD1 or CD5, readily distinguishing this compartment from B1 B cells and marginal zone B-cells. FO B cells organize into the primary follicles of B cell zones focused around follicular dendritic cells in the white pulp of the spleen and the cortical areas of ...
In immunology, a memory B cell (MBC) is a type of B lymphocyte that forms part of the adaptive immune system. These cells develop within germinal centers of the secondary lymphoid organs. Memory B cells circulate in the blood stream in a quiescent state, sometimes for decades. [1]
The T cell-dependent processes are subdivided into primary and secondary responses: a primary response (meaning that the T cell is present at the time of initial contact by the B cell with the antigen) produces short-lived cells that remain in the extramedullary regions of lymph nodes; a secondary response produces longer-lived cells that ...
A B-cell receptor includes both CD79 and the immunoglobulin. The plasma membrane of a B cell is indicated by the green phospholipids. The B- cell receptor extends both outside the cell (above the plasma membrane) and inside the cell (below the membrane). The B-cell receptor (BCR) is a transmembrane protein on the surface of a B cell.
[2] [4] [9] Another topic of interest for beta-cell physiologists is the mechanism of insulin pulsatility which has been well investigated. [41] [42] Many genome studies have been completed and are advancing the knowledge of beta-cell function exponentially. [43] [44] Indeed, the area of beta-cell research is very active yet many mysteries remain.
In immunology, a naive B cell is a B cell that has not been exposed to an antigen. These are located in the tonsils , spleen , and primary lymphoid follicles in lymph nodes . Once exposed to an antigen , the naive B cell either becomes a memory B cell or a plasma cell that secretes antibodies specific to the antigen that was originally bound.