1. In vivo and in vitro investigation of KIN-193 anti-tumor effects on nasopharyngeal carcinoma
- Author
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Silu Wen, Fuhai Chen, Fen Li, Ze-Zhang Tao, Shiming Chen, and Anyuan Zheng
- Subjects
nasopharyngeal carcinoma (NPC) ,Cancer Research ,mice ,medicine.diagnostic_test ,Cell growth ,Chemistry ,proliferation ,apoptosis ,medicine.disease ,medicine.disease_cause ,Flow cytometry ,Blot ,Oncology ,Nasopharyngeal carcinoma ,Apoptosis ,In vivo ,otorhinolaryngologic diseases ,medicine ,Cancer research ,Original Article ,Radiology, Nuclear Medicine and imaging ,Carcinogenesis ,p110β inhibitor ,PI3K/AKT/mTOR pathway - Abstract
Background: The PI3K signaling pathway has important roles in nasopharyngeal carcinoma (NPC) tumorigenesis and progression. Inhibition of the PI3K pathway effectively inhibits NPC growth; however, the toxic side effects of PI3K inhibitors limit their clinical application. This study aimed to investigate the effects of the selective PI3K p110β inhibitor, KIN-193, on proliferation and apoptosis in NPC. Methods: Cell counting Kit-8, colony formation, flow cytometry, and western blotting experiments were conducted in CNE2Z NPC cells treated with various concentrations of KIN-193 to determine its effects on cell proliferation and apoptosis. Additionally, xenograft tumor models were established in nude mice and the anti-tumor effects of KIN-193 and the classical P110α inhibitor, PIK-75, compared in vivo . Hematoxylin- eosin (HE) staining, immunohistochemical staining, and western blotting were also conducted to detect the protein expression levels of proliferation and apoptosis markers. Results: The results of both in vivo and in vitro experiments demonstrated that KIN-193 can dramatically inhibit cell proliferation and promote apoptosis in NPC. In addition, KIN-193 showed stronger antitumor effects, with fewer side effects, than PIK-75 in vivo . Conclusions: We conclude that KIN-193 exhibits considerable anti-tumor effects in NPC.
- Published
- 2020