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2'-Hydroxyflavanone: A promising molecule for kidney cancer prevention.

Abstract
Kidney cancer, also known as renal cell carcinoma (RCC), is one of the top 10 diagnosed cancers in the USA, and the incidence is rising. Despite major improvements in drug therapy strategies, RCC remains a deadly malignancy if not found and removed in its early stages. RCC is so highly drug-resistant that no effective life-prolonging regimen of cytotoxic chemotherapy has been demonstrated for RCC, despite several decades of effort. It is also highly radiation-resistant, thus circumventing therapies to prevent local recurrence or to control metastatic disease. In the last few years, extensive research has been conducted to elucidate the functional significance of the plant-derived compounds, and their derivatives, as anticancer agents. This review is focussed on a chemo-dietary prevention strategy against RCC using a citrus-derived compound called 2'-hydroxyflavanone. RCC is frequently caused by VHL gene mutations, which contribute to 75% of all RCCs. These mutations are positively linked to cigarette smoking, and exposure to the tobacco carcinogen, N-nitrosodimethylamine and benzopyrene, can disrupt VHL. According to in vitro and preclinical mouse studies, 2'-hydroxyflavanone can both protect the VHL locus and prevent the progression of VHL-mutant cancer. Human clinical trials examining the effect of supplementation of 2'-hydroxyflavanone, either alone or in combination with chemotherapeutic drugs, on RCC prevention have not been conducted, although there is considerable potential for 2'-hydroxyflavanone and its derivatives to be developed as RCC chemoprevention agents. Therefore, the discovery of plant-derived cancer therapies, such as 2'-hydroxyflavanone, offers a new strategy for combating this highly resistant cancer.
AuthorsSharad S Singhal, Jyotsana Singhal, James L Figarola, Arthur Riggs, David Horne, Sanjay Awasthi
JournalBiochemical pharmacology (Biochem Pharmacol) Vol. 96 Issue 3 Pg. 151-8 (Aug 01 2015) ISSN: 1873-2968 [Electronic] England
PMID25957660 (Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't, Review)
CopyrightCopyright © 2015 Elsevier Inc. All rights reserved.
Chemical References
  • 2'-hydroxyflavanone
  • Antineoplastic Agents, Phytogenic
  • Benzopyrenes
  • Carcinogens
  • Flavanones
  • Von Hippel-Lindau Tumor Suppressor Protein
  • VHL protein, human
  • Dimethylnitrosamine
Topics
  • Animals
  • Antineoplastic Agents, Phytogenic (pharmacology)
  • Benzopyrenes (toxicity)
  • Carcinogens (toxicity)
  • Carcinoma, Renal Cell (chemically induced, genetics, pathology, prevention & control)
  • Dimethylnitrosamine (toxicity)
  • Drug Resistance, Neoplasm (genetics)
  • Flavanones (pharmacology)
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Kidney Neoplasms (chemically induced, genetics, pathology, prevention & control)
  • Mice
  • Mutation
  • Signal Transduction
  • Von Hippel-Lindau Tumor Suppressor Protein (genetics, metabolism)

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