Clone (B-cell)

Clone (B-cell)

A Clone (B-cell) is a group of identical B cells that are the progeny of a single B cell. They can produce identical antibodies in response to exposure to a specific antigen.

Overview

B cells, also known as B lymphocytes, are a type of white blood cell that plays a significant role in the immune system. They are responsible for producing antibodies that can bind to harmful foreign particles such as bacteria and viruses to neutralize them. When a B cell encounters its triggering antigen, it gives rise to multiple clones of cells, some of which differentiate into plasma cells that produce antibody molecules.

Clonal Selection

The process of clonal selection begins when a B cell encounters an antigen that binds to its specific B cell receptor. This binding event triggers the B cell to divide and differentiate into a clone of identical cells. Some of these cells become plasma cells, which are the antibody factories of the immune system. Others become memory B cells, which can respond more quickly and effectively to future encounters with the same antigen.

Clonal Expansion

Clonal expansion is the rapid multiplication of B cell clones after activation by an antigen. This process is crucial for the immune response, as it allows for the production of a large number of effector cells in a short period of time. The antibodies produced by these effector cells can then neutralize the antigen, preventing it from causing harm to the body.

See Also

• Antibody
• Antigen
• B cell
• Immune system
• White blood cell

References

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