Format

Send to:

Choose Destination
See comment in PubMed Commons below
Biochim Biophys Acta. 2014 Jan;1840(1):615-25. doi: 10.1016/j.bbagen.2013.10.023. Epub 2013 Oct 24.

Resveratrol enhances chemosensitivity of doxorubicin in multidrug-resistant human breast cancer cells via increased cellular influx of doxorubicin.

Author information

  • 1Laboratory of Molecular Toxicology, College of Pharmacy, Pusan National University, San 30, Jangjeon-dong, Geumjeung-gu, Busan 609-735, Republic of Korea; Division of Toxicology, College of Pharmacy, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 440-746, Republic of Korea.

Abstract

BACKGROUND:

Multidrug resistance is a major problem in the treatment of breast cancer, and a number of studies have attempted to find an efficient strategy with which to overcome it. In this study, we investigate the synergistic anticancer effects of resveratrol (RSV) and doxorubicin (Dox) against human breast cancer cell lines.

METHODS:

The synergistic effects of RSV on chemosensitivity were examined in Dox-resistant breast cancer (MCF-7/adr) and MDA-MB-231 cells. In vivo experiments were performed using a nude mouse xenograft model to investigate the combined sensitization effect of RSV and Dox.

RESULTS AND CONCLUSION:

RSV markedly enhanced Dox-induced cytotoxicity in MCF-7/adr and MDA-MB-231 cells. Treatment with a combination of RSV and Dox significantly increased the cellular accumulation of Dox by down-regulating the expression levels of ATP-binding cassette (ABC) transporter genes, MDR1, and MRP1. Further in vivo experiments in the xenograft model revealed that treatment with a combination of RSV and Dox significantly inhibited tumor volume by 60%, relative to the control group.

GENERAL SIGNIFICANCE:

These results suggest that treatment with a combination of RSV and Dox would be a helpful strategy for increasing the efficacy of Dox by promoting an intracellular accumulation of Dox and decreasing multi-drug resistance in human breast cancer cells.

© 2013.

KEYWORDS:

ABC transporter; ATP-binding cassette transporter; Breast cancer; DMEM; DMSO; Dimethylsulfoxide; Dox; Doxorubicin; Doxorubicin-resistant MCF-7; Drug-resistant; Dulbecco's Modified Eagle Medium; MCF-7/adr; MDR; MRP; Multi-drug resistance; Multi-drug resistance associated protein; P-glycoprotein; P-gp; RSV; RT-PCR; Resveratrol; Reverse transcription polymerase chain reaction; TUNEL; Terminal deoxynuclotidyl transferase dUTP nick end labeling

PMID:
24161697
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk