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Genistein potentiates Centchroman induced antineoplasticity in breast cancer via PI3K/Akt deactivation and ROS dependent induction of apoptosis.

Authors
  • Kaushik, Shweta1
  • Shyam, Hari2
  • Agarwal, Satish3
  • Sharma, Ramesh2
  • Nag, Tapas C4
  • Dwivedi, Anil K3
  • Balapure, Anil K5
  • 1 Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific and Innovative Research, Taramani, Chennai 600113, India. , (India)
  • 2 Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow 226031, India. , (India)
  • 3 Division of Pharmaceutics, & Pharmacokinetics, CSIR-Central Drug Research Institute, Lucknow 226031, India. , (India)
  • 4 Department of Anatomy, All India Institute of Medical Sciences, New Delhi 110029, India. , (India)
  • 5 Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific and Innovative Research, Taramani, Chennai 600113, India. Electronic address: [email protected] , (India)
Type
Published Article
Journal
Life sciences
Publication Date
Dec 15, 2019
Volume
239
Pages
117073–117073
Identifiers
DOI: 10.1016/j.lfs.2019.117073
PMID: 31751581
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Recently, strategies of cancer treatment using combination of agents with distinct molecular mechanism(s) of action are considered more promising due to its high efficacy and reduced systemic toxicity. The study is aimed to improve the efficacy of selective estrogen receptor modulator, Centchroman (CC) by combination with the phytoestrogen Genistein (GN). Cytotoxicity was evaluated by Sulforhodamine B assay. Cell cycle analysis was done through flow cytometry. Further, Apoptosis was analyzed using Annexin V/PI staining, tunel assay and electron microscopic examination and verified using western blot analysis. In order to validate the in vitro results, in vivo analysis was performed using 4T1-syngeneic mouse model. In this study, we report that the dietary isoflavone genistein (GN) synergistically improved antineoplasticity of CC in breast cancer by arresting cells at G2/M phase culminating in ROS dependent apoptosis. The combination of CC plus GN caused dysregulation of Bax and Bcl-2 ratio inducing mitochondrial dysfunction, activation of Caspase-3/7, -9 and PARP cleavage. Further, combination significantly suppresses phosphorylation of PI3K/Akt/NF-κB, enhancing apoptosis. Additionally, combination markedly reduced tumor growth compared to CC and GN alone in mouse 4T1 breast tumor model. Together, these studies suggest that GN represents a potential adjunct molecule whose role in CC induced apoptosis deserves attention. Copyright © 2019 Elsevier Inc. All rights reserved.

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