Identification of a retinoic acid responsive aldoketoreductase expressed in HL60 leukaemic cells

FEBS Letters

Brown, G¹  Burnett, A.K²  Gilkes, A.F²  Bunce, C.M¹  Choudhry, M.A¹  Woodgate, L.J²  Mills, K.I²  Sweeney, M² 

[1] LRF Differentiation Unit, Department of Immunology, University of Birmingham Medical School, Edgebaston, Birmingham, UK;LRF Differentiation Unit, Department of Haematology, University of Wales College of Medicine, Cardiff, CF4 4XN, UK

关键词: Aldoketoreductase;    HL60;    All-trans-retinoic acid responsive;    Hydroxysteroid dehydrogenase;   

DOI  :  10.1016/S0014-5793(98)01435-5

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Neutrophil and monocyte differentiation can be induced in HL60 leukaemia cells by all-trans-retinoic acid (ATRA) and 1α,25-dihydroxyvitamin D₃ (D₃), respectively, whose differentiating effects can be enhanced by exposure to ‘anti-inflammatory agents' and steroids. We have provided evidence that this potentiation is via inhibition of the activity of an enzyme of the aldoketoreductase (AKR) family, but had failed to identify expression of known AKRs in HL60 cells. In this study, we have identified a previously unclassified aldoketoreductase family member (termed HAKR e) that is expressed in HL60 cells. HAKR e is dramatically and transiently up-regulated in HL60 cells within 24 h of exposure to ATRA, further supporting the proposition that a member(s) of this family of enzymes play(s) a role in controlling cell growth and/or differentiation.

【 授权许可】

Unknown