Journal
BIOLOGICAL CHEMISTRY
Volume 384, Issue 9, Pages 1273-1277Publisher
WALTER DE GRUYTER & CO
DOI: 10.1515/BC.2003.141
Keywords
B lymphocyte differentiation; endoplasmic reticulum; ER-associated degradation; IgM secretion; plasma cells; unfolded protein response
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Funding
- Telethon [GP0117Y01] Funding Source: Medline
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B lymphocytes are small cells that express antigen receptors and secrete little if any IgM. Upon encounter with antigen, they differentiate into shortlived plasma cells, which secrete large amounts of polymeric IgM. Plasma cell differentiation entails a massive development of the endoplasmic reticulum to sustain high levels of Ig production. Recent findings suggest a role for the unfolded protein response in orchestrating the architectural and functional changes during terminal plasma cell differentiation.
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