Failure of lymphopoiesis after adoptive transfer of NF-κB-deficient fetal liver cells

Bruce H. Horwitz, Martin L. Scott, Sara R. Cherry, Roderick T. Bronson, David Baltimore

Research output: Contribution to journalArticlepeer-review

168 Scopus citations

Abstract

Mice deficient in the p65 subunit of NF-κB die during fetal development. Introduction of p50/p65-deficient fetal liver cells into lethally irradiated hosts resulted in a severe deficit of fetal liver- derived lymphocytes and their immediate precursors but an overabundance of fetal liver-derived granulocytes. Surprisingly, simultaneous transplantation of wild-type bone marrow cells rescued the production of p50/p65-deficient lymphocytes. Expression of immunoglobulin κ light chains on these rescued NF-κB-deficient B lymphocytes was normal. These results suggest that while p50 and p65 do not regulate the maturation of pre-B cells, NF-κB mediates the development or survival of an early lymphocyte precursor through regulation of an extra-cellular factor.

Original languageEnglish
Pages (from-to)765-772
Number of pages8
JournalImmunity
Volume6
Issue number6
DOIs
StatePublished - Jun 1997
Externally publishedYes

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