this technique for positively selecting cells has allowed us to directly compare for the first time b cell precursors from fetal and adult tissues and will be invaluable for resolution of the cell compartments in the differentiation of b lymphocyte precursors , in the study of accessory cells known to facilitate this process , in the definition of humoral factors which may act on pre-b cells , in the study of immunoglobulin gene rearrangements which take place during normal differentiation , and for further comparative studies of fetal and adult lymphopoiesis .
C0007634
cells
C1511002
differentiation