Expansion of B-1a Cells with Germline Heavy Chain Sequence in Lupus Mice

Abstract excerpt

B6.Sle1.Sle2.Sle3 (B6.TC) lupus-prone mice carrying the NZB allele of Cdkn2c, encoding for the cyclin-dependent kinase inhibitor P18(INK4), accumulate B-1a cells due to a higher rate of proliferative self-renewal. However, it is unclear whether this affects primarily early-appearing B-1a cells of fetal origin or later-appearing B-1a cells that emerge from bone marrow. B-1a cells are the major source of natural...

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