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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]
Transitional B cells are B cells at an intermediate stage in their development between bone marrow immature cells and mature B cells in the spleen.Primary B cell development takes place in the bone marrow, where immature B cells must generate a functional B cell receptor (BCR) and overcome negative selection induced by reactivity with autoantigens. [1]
Interleukin 6 (IL6), also referred to as B-cell stimulatory factor-2 (BSF-2) and interferon beta-2, is a cytokine involved in a wide variety of biological functions. [20] It plays an essential role in the final differentiation of B cells into immunoglobulin-secreting cells, as well as inducing myeloma/plasmacytoma growth, nerve cell ...
[2] In rodents, MZ B cells are recognized as IgM high IgD low CD21 high CD23 low population of B cells. They are furthermore distinguished by the expression of CD9 [3] and CD27 (in humans). [2] In mice, MZ B cells characteristically express high levels of CD1d, which is an MHC class I-like molecule involved in the presentation of lipid ...
B cell: Plasma B cells; Effector B cells; Plasmocytus; 8-10 Active B cells that produces large amounts of antibodies [4] [15] Memory B cell: Lymphocyte: B cell: MBC; 8-10 Memorizes the characteristics of the antigens; Triggers an accelerated and robust secondary immune response [4] [16] Killer T cell: Lymphocyte: T cell: T lymphocyte ...
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 ...
The memory B cells remain inactive here; later, when these memory B cells encounter the same antigen due to reinfection, they divide and form plasma cells. On the other hand, the plasma cells produce a large number of antibodies which are released freely into the circulatory system .