leukemia;
erythropoietin receptor;
alternative splicing;
differentiation;
D O I:
10.1016/S0304-3835(96)04544-2
中图分类号:
R73 [肿瘤学];
学科分类号:
100214 ;
摘要:
An alternative splicing of the rat erythropoietin receptor (EpoR) gene was identified in normal and erythroleukemia cells. A 105 bp insert was found at a region corresponding to the extracellular domain ofEpoR. The alternative transcript was translated to a soluble EpoR (EpoR-S) expressed in spleen, bone marrow, and cultured erythroleukemia cells in addition to the full-length EpoR (EpoR-F). One of the rat erythroleukemia sublines, K4DT, which partially lost erythroid phenotypes and manifested monocyte/macrophage characteristics also lacked EpoR-S expression. Thus, expression of EpoR-S may play an important role in differentiation of rat erythroid cells. (C) 1997 Elsevier Science Ireland Ltd.