B cells and aging: molecules and mechanisms

Michael P. Cancro, Yi Hao, Jean L. Scholz, Richard L. Riley, Daniela Frasca, Deborah K. Dunn-Walters, Bonnie B. Blomberg

Research output: Contribution to journalReview articlepeer-review

144 Scopus citations


Recent advances allow aging-associated changes in B-cell function to be approached at a mechanistic level. Reduced expression of genes crucial to lineage commitment and differentiation yield diminished B-cell production. Moreover, intrinsic differences in the repertoire generated by B-cell precursors in aged individuals, coupled with falling B-cell generation rates and life-long homeostatic competition, result in narrowed clonotypic diversity. Similarly, reductions in gene products crucial for immunoglobulin class switch recombination and somatic hypermutation impact the efficacy of humoral immune responses. Together, these findings set the stage for integrated analyses of how age-related changes at the molecular, cellular and population levels interact to yield the overall aging phenotype.

Original languageEnglish (US)
Pages (from-to)313-318
Number of pages6
JournalTrends in Immunology
Issue number7
StatePublished - Jul 2009

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology


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