Article Publish Status: FREE
Abstract Title:

Enhanced Anticancer Effect of Adding Magnesium to Vitamin C Therapy: Inhibition of Hormetic Response by SVCT-2 Activation.

Abstract Source:

Transl Oncol. 2019 Dec 31 ;13(2):401-409. Epub 2019 Dec 31. PMID: 31901552

Abstract Author(s):

Sungrae Cho, Jin Sung Chae, Hocheol Shin, Yujeong Shin, Youngwook Kim, Eui-Joon Kil, Hee-Seong Byun, Sang-Ho Cho, Seyeon Park, Sukchan Lee, Chang-Hwan Yeom

Article Affiliation:

Sungrae Cho


l-Ascorbic acid (vitamin C, AA) is known as an antioxidant, but at high concentrations, AA can kill cancer cells through a prooxidant property. Sodium-dependent vitamin C transporter family-2 (SVCT-2) determines the cellular uptake of AA, and the activity of SVCT-2 is directly related to the anticancer activity of AA. Cancer cells that showed high SVCT-2 expression levels were more sensitive to AA treatment than cancer cells with low SVCT-2 expression levels. Cells with low SVCT-2 expression showed a hormetic response to a low dose of AA. Magnesium ions, which are known to activate SVCT-2, could increase the Vvalue of SVCT-2, so we investigated whether providing magnesium supplements to cancer cells with low SVCT-2 expression that had shown a hormetic response to AA would elevate the Vvalue of SVCT-2, allowing more AA to accumulate. To evaluate the effects of magnesium on cancer cells, MgSOand MgClwere screened as magnesium supplements; both forms showed synergistic anticancer effects with AA. Taken together, the results of this study suggest that magnesium supplementation enhanced the anticancer effect of AA by inhibiting the hormetic response at a low dose. This study has also demonstrated that AA treatment with magnesium supplementation provided more effective anticancer therapy than AA treatment alone.

Study Type : In Vitro Study

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