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. 2019 May 7;133(24):2557–2558. doi: 10.1182/blood.2019001249

graphic file with name bloodBLD2019001249Cf1.jpg

Yin et al engineered a Bcor mutation in BM cells or fetal liver cells from NP23 Tg mice and injected them into lethally irradiated mice. All the recipient mice developed leukemia with B-1 progenitor phenotype and the same Igh usage with B-1 cells. B-1 pro, B-1 progenitors; B-2 pro, B-2 progenitors.