Inactivation of nuclear factor κB by MIP-based drug combinations augments cell death of breast cancer cells

Drug Design, Development and Therapy
Menaga SubramaniamNoor Hasima Nagoor

Abstract

Drug combination therapy to treat cancer is a strategic approach to increase successful treatment rate. Optimizing combination regimens is vital to increase therapeutic efficacy with minimal side effects. In the present study, we evaluated the in vitro cytotoxicity of double and triple combinations consisting of 1'S-1'-acetoxychavicol acetate (ACA), Mycobacterium indicus pranii (MIP) and cisplatin (CDDP) against 14 various human cancer cell lines to address the need for more effective therapy. Our data show synergistic effects in MCF-7 cells treated with MIP:ACA, MIP:CDDP and MIP:ACA:CDDP combinations. The type of interaction between MIP, ACA and CDDP was evaluated based on combination index being <0.8 for synergistic effect. Identifying the mechanism of cell death based on previous studies involved intrinsic apoptosis and nuclear factor kappa B (NF-κB) and tested in Western blot analysis. Inactivation of NF-κB was confirmed by p65 and IκBα, while intrinsic apoptosis pathway activation was confirmed by caspase-9 and Apaf-1 expression. All combinations confirmed intrinsic apoptosis activation and NF-κB inactivation. Double and triple combination regimens that target induction of the same death mechanism with reduced dosage of ea...Continue Reading

Citations

Jan 8, 2022·Naunyn-Schmiedeberg's Archives of Pharmacology·Heba Abd Elghany SahyonMohammad M A Mashaly

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Methods Mentioned

BETA
Protein Assay
electrophoresis
xenograft

Software Mentioned

ImageJ

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