-gingerol induces apoptosis and inhibits metastatic dissemination of triple negative breast cancer.
Oncotarget. 2017 Sep 22 ;8(42):72260-72271. Epub 2017 Aug 10. PMID: 29069785
Ana Carolina B M Martin
There is increasing interest in the use of non-toxic natural products for the treatment of various pathologies, including cancer. In particular, biologically active constituents of the ginger oleoresin (Roscoe) have been shown to mediate anti-tumour activity and to contribute to the anti-inflammatory, antioxidant, antimicrobial, and antiemetic properties of ginger. Here we report on the inhibitory properties of -gingerol against metastatic triple negative breast cancer (TNBC)and. We show that -gingerol concentration-dependently induces apoptotic death in mouse and human TNBC cell lines. In addition, -gingerol is well tolerated, induces a marked increase in caspase-3 activation and inhibits orthotopic tumour growth in a syngeneic mouse model of spontaneous breast cancer metastasis. Importantly, using both spontaneous and experimental metastasis assays, we show for the first time that -gingerol significantly inhibits metastasis to multiple organs including lung, bone and brain. Remarkably, inhibition of brain metastasis was observed even when treatment was initiated after surgical removal of the primary tumour. Taken together, these results indicate that -gingerol may be a safe and useful complementary therapy for the treatment of metastatic breast cancer and warrant further investigation of its efficacy, either alone or in combination with standard systemic therapies, in pre-clinical models of metastatic breast cancer and in patients.