BAFF-R, a newly identified TNF receptor that specifically interacts with BAFF

  • Science. 2001 Sep 14;293(5537):2108-11. doi: 10.1126/science.1061965.
J S Thompson  1 ,  S A Bixler ,  F Qian ,  K Vora ,  M L Scott ,  T G Cachero ,  C Hession ,  P Schneider ,  I D Sizing ,  C Mullen ,  K Strauch ,  M Zafari ,  C D Benjamin ,  J Tschopp ,  J L Browning ,  C Ambrose
Affiliations
  • 1. Biogen, 12 Cambridge Center, Cambridge, MA 02142, USA., The Institute of Biochemistry, University of Lausanne, CH-1066, Epalinges, Switzerland.
Abstract

B cell homeostasis has been shown to critically depend on BAFF, the B cell activation factor from the tumor necrosis factor (TNF) family. Although BAFF is already known to bind two receptors, BCMA and TACI, we have identified a third receptor for BAFF that we have termed BAFF-R. BAFF-R binding appears to be highly specific for BAFF, suggesting a unique role for this ligand-receptor interaction. Consistent with this, the BAFF-R locus is disrupted in A/WySnJ mice, which display a B cell phenotype qualitatively similar to that of the BAFF-deficient mice. Thus, BAFF-R appears to be the principal receptor for BAFF-mediated mature B cell survival.