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The Effects of Abt-199 and Dihydroartemisinin Combination on Cell Growth and Apoptosis in Human U937 and Kg-1 Cancer Cells Publisher Pubmed



Nazmabadi R1 ; Pooladi M1, 2 ; Amri J3 ; Darvish M1 ; Abbasi Y4 ; Karami H1
Authors

Source: Asian Pacific Journal of Cancer Prevention Published:2024


Abstract

Introduction: Change in the balance of Bcl-2 family proteins is one of the main reasons for resistance of tumor cells to ABT-199. In this study, the effect of dihydroartemisinin on cell growth, apoptosis and sensitivity of the AML cells to ABT-199 was investigated. Methods: Cell proliferation and survival were assessed by trypan blue staining and MTT assay, respectively. Cell apoptosis was measured by Hoechst 33342 staining and caspase-3 activity assay. The expression levels of Bcl-2, Mcl-1 and Bax mRNA were tested by qRT-PCR. Results: Our data showed that combination therapy significantly reduced the IC50 value and synergistically decreased the AML cell survival and growth compared with dihydroartemisinin or ABT-199 alone. Treatment with each of ABT-199 or dihydroartemisinin alone clearly enhanced the Bax mRNA expression and inhibited the expression of Mcl-1 and Bcl-2 mRNA. Inhibition of Mcl-1 mRNA by dihydroartemisinin was associated with enhancement of apoptosis induced by ABT-199 in AML cells. Conclusion: In conclusion, dihydroartemisinin not only triggers the intrinsic pathway of apoptosis, but also can increase the sensitivity of the AML cells to ABT-199 via suppression of Mcl-1 expression. © (2024) This work is licensed under a Creative Commons Attribution-Non Commercial 4.0 International License.
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