Gamma-Klotho exhibits multiple roles in tumor growth of human bladder cancer.

Gamma-Klotho exhibits multiple roles in tumor growth of human bladder cancer. Oncotarget. 2018 Apr 13;9(28):19508-19524 Authors: Hori S, Miyake M, Tatsumi Y, Morizawa Y, Nakai Y, Onishi S, Onishi K, Iida K, Gotoh D, Tanaka N, Fujimoto K Abstract Alpha-Klotho (KLα) and beta-Klotho (KLβ) have recently been reported to correlate with cancer prognosis in some malignancies and we previously reported the association between KLα, KLβ, and urothelial carcinoma of the bladder (UCB), indicating that KLβ acts as a tumor promoter. However, the association between gamma-Klotho (KLγ) and cancer prognosis remains unclear. In the present study, we evaluated the association between KLγ and UCB. To evaluate the effect of KLγ on human bladder cancer cell lines in vitro assays were performed. Exogenous KLγ increased the ability of human bladder cancer cells to proliferate, migrate, invade, form colonies, and provide anchorage-independent growth potential. In in vivo assays, eighteen mice bearing xenografts inoculated using UM-UC-3, were randomly divided into three groups and treated with a small interfering RNA (siRNA) by intratumoral administration once a week for four weeks. Knockdown of KLγ with siRNA led to a dramatic change in tumor growth and suggested that KLγ had effects on tumor growth, including promotion of cell proliferation, inhibition of apoptosis, and enhancement of the epithelial-mesenchymal transition. To confirm the study, h...
Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research