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B cells are a type of white blood cell that makes infection-fighting proteins called antibodies. B cells are an important part of your immune system, your body’s defense against harmful pathogens (viruses, bacteria and parasites) that enter your body and make you sick.
4 Οκτ 2020 · B cells are lymphocytes – a type of white blood cell. They are the result of multipotential cell differentiation in the bone marrow. One common cell responsible for all blood cell types. Every blood cell is derived from a single cell type – the pluripotent hematopoietic stem cell.
They express B cell receptors on their surface that allow them to bind specific antigens, and function in the humoral immunity component of the adaptive immune system by secreting antibodies. Additionally, B cells are classical antigen-presenting cells (APCs) and also secrete cytokines.
11 Οκτ 2024 · B cell, one of the two types of lymphocytes (the other is the T cells). All lymphocytes begin their development in the bone marrow. B cells are involved in so-called humoral immunity. On encountering a foreign substance (antigen), the B cell differentiates into a plasma cell, which secretes.
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]
16 Φεβ 2011 · B-cells become plasma cells. When a B-cell receptor connects to its specific antigen, a Helper T-cell releases chemicals that tell that B-cell to divide many times. This makes an army of B-cells with the perfectly shaped B-cell receptor to connect to the invader in your body.
Each B cell clone makes antibody molecules with a unique antigen-binding site. Initially, during B cell development in the bone marrow, the antibody molecules are inserted into the plasma membrane, where they serve as receptors for antigen.
