In most non-excited cells, voltage-gated T-type calcium channels present three properties of activation, inactivation and slow inactivation, thus contribute to cellular calcium signaling and membrane potential. By which T-type calcium channels play an important role in many cancer cellular processes such as cell proliferation, differentiation, apoptosis, invasion, and metastasis. Inhibiting T-type calcium channels by drugs or genetic tools can change the related cellular currents and the intracellular Ca 2+ , thereby regulating the biological tumorigenesis. This article reviews the electrophysiological of T-type calcium channels during tumor progression, aims to provide a scientific basis for the study and treatment in cancer.

Hypoxia is an important basic feature of the solid tumor microenvironment. With the deepening of the research on the pathogenesis of renal cell carcinoma (RCC), the expression and function of hypoxia and hypoxia inducible factor (HIF) in RCC have attracted more and more attention. The hypoxia signal pathway has become a research hotspot of tumor and other diseases in recent years. This article reviews the current understanding of hypoxia signal pathway, its correlation with the occurrence and development of RCC, and the application prospect of HIF inhibitors, in order to guide the precise treatment of clinical RCC.