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  • Title: βKlotho is identified as a target for theranostics in non-small cell lung cancer.
    Author: Li F, Li X, Li Z, Ji W, Lu S, Xia W.
    Journal: Theranostics; 2019; 9(25):7474-7489. PubMed ID: 31695781.
    Abstract:
    Non-small cell lung cancer (NSCLC) remains a great challenge, calling for the identification of novel molecular targets with diagnostic/therapeutic value. Here, we sought to characterize the expression of βKlotho and its anti-tumor roles in NSCLC. Methods: The expression of βKlotho was examined in NSCLC cells and tissues by western blot, qRT-PCR and immunohistochemistry staining respectively. Biological roles of βKlotho were revealed by a series of functional in vitro and in vivo studies. Serum βKlotho concentrations of patients were measured using specific ELISA methods. Results: Serum βKlotho concentrations of NSCLC patients were significantly lower than the control group. Moreover, βKlotho expression was negatively associated with lymph node metastasis, overall survival and progression-free survival. Overexpression of βKlotho or exogenous βKlotho administration inhibited the proliferation and migration of NSCLC cells, accompanied by induction of apoptosis, G1 to S phase arrest, and inactivation of ERK1/2, AKT and STAT3 signaling. Furthermore, βKlotho overexpression inhibited NSCLC tumor growth in vivo. Conclusions: βKlotho serves as a novel target for theranostics in NSCLC, which has potential clinical applications in the future.
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