Diacetyl Hexamethylene Diamine (CAHB) Exerts Pro-Apoptotic and Anti-Proliferative Function in Leukemic T Lymphocytes Via Downregulating PI3K/Akt Signaling.
Medical science monitor(2019)
摘要
BACKGROUND T cell acute lymphoblastic leukemia (T-ALL) is an aggressive hematologic malignancy caused by abnormal proliferation of immature T cell progenitors. Chemotherapy of T-ALL usually consists of induction, consolidation, and long-term maintenance. Diacetyl hexamethylene diamine (CAHB) is a newly developed agent that induces the differentiation of malignant cells and deprives their clonal growth ability. Since its effect on T-ALL has not been previously determined, we evaluated its potential function in the Jurkat cell line. MATERIAL AND METHODS MTT assay was conducted to evaluate the cytotoxicity and anti-proliferative effect of CAHB. The apoptosis level of CAHB-treated Jurkat cells was evaluated using flow cytometry via staining with Annexin V/PI or cleaved-caspase-3. The alteration of mitochondrial membrane potential was determined by flow cytometry. The expression of Bax and Bcl-2 was evaluated by RT-PCR and Western blot. Western blot was also used to assess the activation of Akt. RESULTS CAHB inhibited the proliferation and promoted the apoptosis of Jurkat cells in a time- and dose-dependent manner by decreasing activation of Akt, reducing the mitochondrial membrane potential, and downregulating the Bcl-2/Bax ratio. CONCLUSIONS Our data suggest that CAHB might be regarded as a novel treatment agent for T-ALL since it can induce apoptosis and inhibit proliferation of the T-ALL cell line at a relatively low level.
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关键词
Cell Proliferation,Diacetyl,Precursor T-Cell Lymphoblastic Leukemia-Lymphoma,Proto-Oncogene Proteins c-akt
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