Presence of pluripotent haemopoietic precursors in vitro (CFU-mix) in haemopoietic tissues from mice of W/Wv genotype |
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Authors: | H Hara Y Ohe K Noguchi K Nagai K Tsuyama† Y Kitamura† |
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Institution: | *Division of Blood Transfusion, and Department of Internal Medicine, Hyogo College of Medicine;†Division of Blood Transfusion, Institute for Cancer Research, Medical School, Osaka University, Japan |
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Abstract: | Abstract. The presence or absence of haemopoietic precursors, which produce mixed colonies in vitro (CFU-mix) was examined in the bone marrow and spleen of (WB x C57BL/6) F1- W/Wv mice. Despite the failure of macroscopically evident colonyformation in the spleens of irradiated mice, haemopoietic cells of W/Wv mice did produce macroscopically-evident mixed colonies containing erythroid cells, macrophages, and often megakaryocytes, in culture medium. The size and constitution of mixed colonies derived from W/Wv mice were comparable to those of mixed colonies from congenic +/+ mice. The present results appear consistent with in vivo haemopoiesis in the W/Wv mice, which is obviously deficient, but sufficient for survival. |
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