B Cell Antibody Production Overview
B cell antibody production refers to the process by which B lymphocytes (B cells) generate and secrete antibodies in response to antigens. Each B cell produces a unique antibody, determined by its specific antigen-binding site. This process is central to humoral immunity, enabling the body to recognize and neutralize pathogens such as bacteria and viruses. Upon encountering an antigen that matches their membrane-bound antibody (the B cell receptor, or BCR), naïve or memory B cells become activated—often with help from helper T cells. Activated B cells proliferate and differentiate into plasma cells, which secrete large quantities of soluble antibodies into circulation. Some activated B cells become memory B cells, providing long-term immunity.
Mechanism of Action
Not applicable; B cell antibody production is a biological process, not a molecular target.
Biological Functions
Disease Associations
Safety Considerations
- Overproduction of antibodies leading to autoimmunity
- Allergic reactions (IgE-mediated)
- Development of neutralizing antibodies against therapeutic proteins
Interacting Drugs
Associated Biomarkers
Biomarker |
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Antibody titers (IgM, IgG, IgA, IgE) |
B cell counts (CD19+, CD20+) |
Presence of specific antibodies against antigens |