Abstract
Transient receptor potential melastatin 7 (TRPM7) plays a key role in the pathophysiological response of multiple cell types. However, the role of TRPM7 channels in ox-LDL-induced proliferation and migration of VSMC remains unclear. This study used the thoracic aorta VSMCs to explore the effects of ox-LDL on cell proliferation and migration and to investigate the underlying molecular mechanisms and signaling pathways. Data demonstrated that ox-LDL significantly increased TRPM7 activity, and induced VSMC proliferation and migration. VSMC proliferation and migration were inhibited by nonspecific TRPM7 blocker 2-APB or synthetic siRNA targeting TRPM7. Furthermore, the phosphorylation of ERK1/2 and MEK1/2 associated with cell proliferation and migration decreased in TRPM7-deficient VSMC. Therefore, TRPM7 may constitute a useful target for the treatment of atherosclerosis.
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