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Review
. 2012 Oct;24(5):342-9.
doi: 10.1016/j.smim.2012.04.004. Epub 2012 May 4.

B cell maintenance and function in aging

Affiliations
Review

B cell maintenance and function in aging

Igor Kogut et al. Semin Immunol. 2012 Oct.

Abstract

In this review we discuss the changes that occur in the B lymphocyte compartment of mice and humans as they progress to old age, focusing on recent advances in this important area of research. Primary areas considered include increased morbidity and mortality in the elderly following infection, and decreased responsiveness to vaccines that evoke primary humoral immune responses, as well as those that evoke responses by memory B cells generated following vaccination and natural infection earlier in life. We then consider some of the mechanisms that may underlie these observed declines in humoral immune function. This includes a discussion of alterations in B cell repertoire and subcompartment distribution, as well as defects in B lymphopoiesis, cell development and homeostasis that may contribute to these alterations, and ultimately to declining protective quality of antibodies produced in the elderly.

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