Maintenance of long term γ-herpesvirus B cell latency is dependent on CD40-mediated development of memory B cells

Academic Article


  • It has been proposed that the γ-herpesviruses maintain lifelong latency in B cells by gaining entry into the memory B cell pool and taking advantage of host mechanisms for maintaining these cells. We directly tested this hypothesis by kinetically monitoring viral latency in CD40+ and CD40- B cells from CD40+CD40- mixed bone marrow chimera mice after infection with a murine γ-herpesvirus, MHV-68. CD40+ B cells selectively entered germinal centers and differentiated into memory B cells. Importantly, latency was progressively lost in the CD40- B cells and preferentially maintained in the long-lived, isotype-switched CD40+ B cells. These data directly demonstrate viral exploitation of the normal B cell differentiation pathway to maintain latency.
  • Pubmed Id

  • 6370759
  • Author List

  • Kim IJ; Flaño E; Woodland DL; Lund FE; Randall TD; Blackman MA
  • Start Page

  • 886
  • End Page

  • 892
  • Volume

  • 171
  • Issue

  • 2