Published in:
01-04-2011
AID expression during B-cell development: searching for answers
Authors:
Masayuki Kuraoka, Laurie McWilliams, Garnett Kelsoe
Published in:
Immunologic Research
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Issue 1-3/2011
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Abstract
Expression of activation-induced cytidine deaminase (AID) by germinal center (GC) B cells drives the processes of immunoglobulin (Ig) somatic hypermutation (SHM) and class switch recombination (CSR) necessary for the generation of high affinity IgG serum antibody and the memory B-cell compartment. Increasing evidence indicates that AID is also expressed at low levels in developing B cells but to date, this early, developmentally regulated AID expression has no known function. Does the timing and extent of AID expression in developmentally immature, non-GC B cells provide clues to reveal its physiologic role?