Abstract
Lymphocyte progenitor cells isolated on sequential days of gestation from mouse fetal liver represent distinct stages in B cell development. We have utilized polymerase chain reaction (PCR)-based assays to detect immunoglobulin (Ig) gene rearrangement and flow cytometry to assay cell surface markers following fractionation based on the differential expression of the B cell-specific Phosphatase CD45 (B220). The purification of B220+ cells from day 17 fetal liver resulted in a 10-fold enrichment of cells which had undergone gene rearrangement events. We have also shown that day 13 fetal liver cells activate successive Ig gene rearrangements during short-term culture in the presence of fetal calf serum (FCS), interleukin-3 (IL3), and interleukin-7 (IL7). However, partially purified lymphocyte precursors fail to activate Ig gene rearrangement in culture unless they are cultured in the presence of a stromal cell line.
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© 1992 Springer-Verlag Berlin Heidelberg
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Morrow, T., Schlissel, M. (1992). The Purification of B-Cell Precursors From Mouse Fetal Liver. In: Potter, M., Melchers, F. (eds) Mechanisms in B-Cell Neoplasia 1992. Current Topics in Microbiology and Immunology, vol 182. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-77633-5_7
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DOI: https://doi.org/10.1007/978-3-642-77633-5_7
Publisher Name: Springer, Berlin, Heidelberg
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