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A novel histone deacetylase inhibitor Chidamide induces G0/G1 arrest and apoptosis in myelodysplastic syndromes

Journal Title: 
Biomed Pharmacother
Primary Author: 
Liu Z
Author(s): 
Liu Z, Ding K, Li L, Liu H
Original Publication Date: 
Saturday, October 1, 2016

Chidamide as a newly designed and synthesized histone deacetylase inhibitor induces an antitumor effect in various cancer, and it has been used in several clinical trials such as peripheral T cell lymphoma (PTCL). Here we demonstrate that Chidamide was able to increase the acetylation levels of histone H3 and decrease HDAC activity in MDS cell lines(SKM-1,MUTZ-1)and AML cell line(KG-1). In vitro, at low concentration (<250nM) of Chidamide inhibited cell proliferation and delayed G0/G1 cell cycle progression by down-regulating CDK2 and regulating p-P53 and P21 protein expression. Meanwhile,it also induced cell apoptosis by down-regulating Bcl-2 and up-regulating cleaved Caspase-3 and Bax protein expression.The results of the present study demonstrates the potential utility of Chidamide for the treatment of Myelodysplastic syndromes.

Bone Marrow Disease(s): 
  • myelodysplastic syndromes (MDS)
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