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|The cells of the immune system form cells that remember the pathogen for future infections.|
B cells are lymphocytes, a type of white blood cell. Once the B cell is activated, it turns into a plasma cell, and starts producing antibodies. They are a vital part of the adaptive immune system. They have a protein on the B cell's outer surface known as a 'B cell receptor'. This allows a B cell to bind to a specific antigen.
The main functions of B cells are:
- to make antibodies against antigens,
- to perform the role of antigen-presenting cells (APCs),
- to develop into memory B cells after activation by antigen interaction.
Recently, a new, suppressive function of B cells has been discovered.
- Plasma cell = cell which makes antibodies
- Mauri, Claudia; Bosma, Anneleen (2012). "Immune regulatory function of B Cells". Annual Review of Immunology 30: 221–41. . .
- Alberts B. et al 2002. Molecular biology of the cell. Garland Science: New York, pg 1367.