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Bosma GC, Chang Y, Karasuyama H, Bosma MJ
Differential effect of an Ig mu transgene on development of pre-B cells in fetal and adult SCID mice
Proceedings of the National Academy of Sciences of the United States of America (1999) 96:11952-11957.
Abstract
Progression of pro-B lymphocytes to the pre-B stage depends on the expression of a pre-B cell receptor (pre-BCR), consisting of an 1g mu H chain, Ig surrogate light chain, and associated signal transducing chains. Mice that are unable to express a pre-BCR show an arrest of B cell development at the pro-B stage. Such is the case for severe combined immune deficient (SCID) mice in which mu chains are not made because of a defect in V(D)J recombination. When mu chains are made, as in SCID mice bearing a functional mu transgene, then B cell differentiation can proceed to the pre-B stage, However, as reported here, a mu transgene (M54) that promotes development of SCID pre-B cells in adult bone marrow fails to do so in fetal liver, We suggest that a pre-BCR containing the M54 mu chain cannot signal progression of pro-B cells to the pre-B stage in the fetal liver microenvironment.
Note
Publication Date: 1999-10-12.
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