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Study: Melatonin Suppresses the Growth of Ovarian Cancer Cell Lines

Int J Mol Sci. 2016 Jan 29;17(2). pii: E176. doi: 10.3390/ijms17020176.

Melatonin Suppresses the Growth of Ovarian Cancer Cell Lines (OVCAR-429 and PA-1) and Potentiates the Effect of G1 Arrest by Targeting CDKs.

Shen CJ1,2Chang CC3Chen YT4,5Lai CS6,7Hsu YC8,9.

Abstract

Melatonin is found in animals as well as plants. In animals, it is a hormone that anticipates the daily onset of darkness and regulates physiological functions, such as sleep timing, blood pressure, and reproduction. Melatonin has also been found to have anti-tumor properties. Malignant cancers are the most common cause of death, and the mortality rate of ovarian tumor is the highest among gynecological diseases. This study investigated the anti-tumor effects of melatonin on the ovarian cancer lines, OVCAR-429 and PA-1. We observed the accumulation of melatonin-treated cells in the G₁ phase due to the down-regulation of CDK (cyclin-dependant kinase) 2 and 4. Our results suggest that in addition to the known effects on prevention, melatonin may also provide anti-tumor activity in established ovarian cancer.

KEYWORDS:

CDK; cell cycle; melatonin; ovarian cancer

PMID:
 
26840297
 
PMCID:
 
PMC4783910
 
DOI:
 
10.3390/ijms17020176

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