Plasma cells represent a critical functional subset of B lymphocytes that specialize in the mass production and secretion of antibodies. Conversely, a decline in healthy plasma cell function can result in immunodeficiency, leaving the body vulnerable to recurrent infections.
Plasma Cells Activate Complement System: Key Mechanisms and Functions
In multiple myeloma, a cancer of plasma cells, these cells proliferate uncontrollably and produce excessive amounts of a single type of antibody, often leading to organ damage. Upon encountering their specific antigen and receiving necessary co-stimulatory signals from helper T cells, activated B cells undergo clonal expansion within secondary lymphoid organs.
Antibody Production and Secretion The most fundamental function of plasma cells is the synthesis and release of immunoglobulins, commonly known as antibodies. This process prevents viruses from binding to cellular receptors or stops bacteria from adhering to tissues.
Plasma Cells Activate Complement System
Clinical Significance and Dysregulation The critical balance of plasma cell function is evident in various pathological conditions. Unlike their B cell precursors, which express antibody receptors on their surface, plasma cells act as factories, pumping out thousands of identical antibody molecules per second.
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