Single Round of Antigen Receptor Signaling Programs Naive B Cells to Receive T Cell Help

Bazarragchaa Damdinsuren, Yongqing Zhang, Ashraf Khalil, III H. Wood William H., Kevin G. Becker, Mark J. Shlomchik, Ranjan Sen

Research output: Contribution to journalArticlepeer-review


To simulate transient B cell activation that is the likely initiator of T-dependent responses, we examined the molecular and functional consequences of a single round of immunoglobulin M (IgM) signaling. This form of activation triggered early cytosolic signaling and the transcription factor NF-κB activation indistinguishably from conventional continuous IgM crosslinking but did not induce G1 progression. However, single round IgM signaling changed the expression of chemokine and chemokine receptor genes implicated in initiating T-dependent responses, as well as accentuated responsiveness to CD40 signaling. Several features of single-round IgM signaling in vitro were recapitulated in B cells after short-term exposure to antigen in vivo. We propose that transient BCR signals prime B cells to receive T cell help by increasing the probability of B-T encounter and creating a cellular environment that is hyper-responsive to CD40 signaling.

Original languageEnglish (US)
Pages (from-to)355-366
Number of pages12
Issue number3
StatePublished - Mar 2010
Externally publishedYes



ASJC Scopus subject areas

  • Immunology and Allergy
  • Infectious Diseases
  • Immunology


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