Effect of anandamide on endometrial adenocarcinoma (Ishikawa) cell numbers: implications for endometrial cancer therapy.

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“We have previously shown that patients with endometrial carcinoma express elevated concentrations of the endocannabinoid, anandamide (AEA), in both their plasma and their endometrial tissue and that the endometrial carcinoma cell line, Ishikawa, contains the receptors to which AEA binds.

Several studies have reported that human and rodent cancer cell lines die in response to high AEA concentrations.

The incidence of endometrial carcinoma continues to escalate and, although surgical treatment has improved, morbidity and mortality rates have not. A move towards a novel non-surgical therapeutic option is thus required, and the endocannabinoid system provides a good candidate target.

We aimed to investigate the effects of AEA on the survival and proliferation of an endometrial carcinoma cell model.

Our results show that AEA induces a decrease in Ishikawa cell number probably through inhibition of cell proliferation rather than cell death.

These data suggest that the increased plasma and tissue AEA concentrations observed in patients with endometrial cancer is a counter mechanism against further cancer growth and points to the endocannabinoid system as a potentially new therapeutic target.”



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