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B cell activation: from immature B cell to plasma cell or memory B cell Basic B cell function: bind to an antigen, receive help from a cognate helper T cell, and differentiate into a plasma cell that secretes large numbers of antibodies. B cell activation occurs in the secondary lymphoid organs (SLOs), such as the spleen and lymph nodes. [1]
The B cells develop dynamically after the activation of follicular B cells by T-dependent antigen. The initiation of germinal center formation involves the interaction between B and T cells in the interfollicular area of the lymph node, CD40-CD40L ligation, NF-kB signaling and expression of IRF4 and BCL6. [4]
10673 24099 Ensembl ENSG00000102524 ENSMUSG00000031497 UniProt Q9Y275 Q9WU72 RefSeq (mRNA) NM_001145645 NM_006573 NM_033622 NM_001347309 RefSeq (protein) NP_001139117 NP_006564 NP_001334238 NP_296371 Location (UCSC) Chr 13: 108.25 – 108.31 Mb Chr 8: 10.06 – 10.09 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse B-cell activating factor (BAFF) also known as tumor necrosis factor ...
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.
BCGFs specifically mediate the growth and division of B cells, or, in other words, the progression of B cells through their life cycle (cell cycle stages G1, S, G2). BCDFs control the advancement of a B cell progenitor or unmatured B cell to an adult immunoglobulin (Ig) secreting cell. Differentiation factors control cell fate and can sometimes ...
CD48 is found on the surface of lymphocytes and other immune cells, dendritic cells and endothelial cells, and participates in activation and differentiation pathways in these cells. [5] CD48 was the first B-cell-specific cellular differentiation antigen identified in transformed B lymphoblasts. [6] [7]
Complement receptor 2 interacts with CD19, [7] [8] and, on mature B cells, forms a complex with CD81 (TAPA-1). The CR2-CD19-CD81 complex is often called the B cell co-receptor complex, [9] because CR2 binds to opsonized antigens through attached C3d (or iC3b or C3dg) when the B-cell receptor binds antigen. This results in the B cell having ...
CD79 serves to be a pan-B cell marker for the detection of B-cell neoplasms.However, tumor cells in some cases of T-lymphoblastic leukemia/lymphoma and AML has shown to potentially react positively with CD79 monoclonal antibodies. [4]