Effects of gossypol acetic acid on the proliferation and methylation level of the human MutL homologue 1 gene in human tongue carcinoma cell line Tca8113.

Fu Shuai; Wu Yong; Peng Qingfang; Chen Wenfei

Objective This paper aims to study the effects of gossypol acetic acid (GAA) on proliferation and methylation level of human MutL homologue 1 (hMLHl) gene in human tongue cancer cell line Tca8113. Methods The MTT assay was used to determine the effects of the acid on the proliferation inhibition in Tca8113 cells treated with different GAA concentrations. Nested methylation-specific polymerase chain reaction (nMSP) was used to detect the change in the methylation level of hMLHl after 48 and 72 h with 30 and 15 μmol-L-1 GAA treatment. Results MTT assay results showed the growth and proliferation inhibition of Tca8113 cells in the experimental GAA group after 24 h to 72 h of GAA treatment. The nMSP results indicated that the average optical density of hMLHl in the Tca8113 cells significantly changed after the GAA treatment (30 umol-L-1 GAA for 48 h and 15 μmol-L-1 for 72 h) (PO.05) compared with that of the control group. Conclusion GAA does not only inhibit Tca8113 proliferation but also has a demethylation effect on the hMLHl gene. These phenomena may be part of an underlying tumor-suppression mechanism of GAA.

TONGUE cancer; CANCER cell proliferation; DIAGNOSTIC use of polymerase chain reaction; METHYLATION; PHYSIOLOGICAL effects of acetic acid; OPACITY (Optics)

West China Journal of Stomatology, 2014, Vol 32, Issue 1, p91

1000-1182

Academic Journal

10.7518/hxkq.2014.01.021