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Deprecated: Implicit conversion from float 249.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Cancer+Sci 2018 ; 109 (3): 699-709 Nephropedia Template TP
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New metformin derivative HL156A prevents oral cancer progression by inhibiting the insulin?like growth factor/AKT/mammalian target of rapamycin pathways #MMPMID29285837
Lam TG; Jeong YS; Kim S; Ahn S
Cancer Sci 2018[Mar]; 109 (3): 699-709 PMID29285837show ga
Metformin is a biguanide widely prescribed as an antidiabetic drug for type 2 diabetes mellitus patients. The purpose of the present study was to observe the effects of the new metformin derivative, HL156A, on human oral cancer cell and to investigate its possible mechanisms. It was observed that HL156A significantly decreased FaDu and YD?10B cell viability and colony formation in a dose?dependent way. HL156A also markedly reduced wound closure and migration of FaDu and YD?10B cells. We observed that HL156A decreased mitochondrial membrane potential and induced reactive oxygen species (ROS) levels and apoptotic cells with caspase?3 and ?9 activation. HL156A inhibited the expression and activation of insulin?like growth factor (IGF)?1 and its downstream proteins, AKT, mammalian target of rapamycin (mTOR), and ERK1/2. In addition, HL156A activated AMP?activated protein kinase/nuclear factor kappa B (AMPK?NF??B) signaling of FaDu and YD?10B cells. A xenograft mouse model further showed that HL156A suppressed AT84 mouse oral tumor growth, accompanied by down?regulated p?IGF?1, p?mTOR, proliferating cell nuclear antigen (PCNA) and promoted p?AMPK and TUNEL expression. These results suggest the potential value of the new metformin derivative HL156A as a candidate for a therapeutic modality for the treatment of oral cancer.