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Life Sciences

China Medical University

Autophagy

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Full-Text Articles in Medicine and Health Sciences

Glutaminase - A Potential Target For Cancer Treatment, Josephine Anthony, Sureka Varalakshmi, Ashok Kumar Sekar, Nalini Devarajan, Balamurugan Janakiraman, Rajendran Peramaiyan May 2024

Glutaminase - A Potential Target For Cancer Treatment, Josephine Anthony, Sureka Varalakshmi, Ashok Kumar Sekar, Nalini Devarajan, Balamurugan Janakiraman, Rajendran Peramaiyan

BioMedicine

The overexpression of glutaminase is reported to influence cancer growth and metastasis through glutaminolysis. Upregulation of glutamine catabolism is recently recognized as a critical feature of cancer, and cancer cells are observed to reprogram glutamine metabolism to maintain its survival and proliferation. Special focus is given on the glutaminase isoform, GLS1 (kidney type glutaminase), as the other isoform GLS2 (Liver type glutaminase) acts as a tumour suppressor in some conditions. Glutaminolysis linked with autophagy, which is mediated via mTORC1, also serves as a promising target for cancer therapy. Glutamine also plays a vital role in maintaining redox homeostasis. Inhibition of …


Efficacy Of Hmj-38, A New Quinazolinone Analogue, Against The Gemcitabine-Resistant Mia-Paca-2 Pancreatic Cancer Cells, Mann-Jen Hour, Fuu‑ Jen Tsai, I-Lu Lai, Je-Wei Tsao, Jo-Hua Chiang, Yu-Jen Chiu, Hsing-Fang Lu, Yu‑ Ning Juan, Jai-Sing Yang, Shih-Chang Tsai Nov 2023

Efficacy Of Hmj-38, A New Quinazolinone Analogue, Against The Gemcitabine-Resistant Mia-Paca-2 Pancreatic Cancer Cells, Mann-Jen Hour, Fuu‑ Jen Tsai, I-Lu Lai, Je-Wei Tsao, Jo-Hua Chiang, Yu-Jen Chiu, Hsing-Fang Lu, Yu‑ Ning Juan, Jai-Sing Yang, Shih-Chang Tsai

BioMedicine

Gemcitabine is frequently utilized to treat pancreatic cancer. The purpose of our study was to create a gemcitabine-resistant MIA-PaCa-2 pancreatic cancer cell line (MIAGR100) and to evaluate the anti-pancreatic cancer efficacy of HMJ-38, a new quinazolinone analogue. Compared to their parental counterparts, MIA-PaCa-2, established MIA-GR100 cells were less sensitive to gemcitabine. MIA-GR100 cell viability was not affected by 10, 50, or 100 nM gemcitabine concentrations. HMJ-38 reduced MIA-GR100 cell growth and induced autophagy and apoptosis. When stained with monodansylcadaverine (MDC), acridine orange (AO), and terminal deoxynucleotide transferase dUTP nick end labeling (TUNEL), MIA-GR100 cells shrunk, punctured their membranes, and produced …


Metformin Induces Autophagy Of Cisplatin-Resistant Human Gastric Cancer Cells In Addition To Apoptosis, Chih-Wun Fang, Jai-Sing Yang, Jo-Hua Chiang, Po-Chuen Shieh, Fuu-Jen Tsai, Chia-Wen Tsai, Wen-Shin Chang May 2023

Metformin Induces Autophagy Of Cisplatin-Resistant Human Gastric Cancer Cells In Addition To Apoptosis, Chih-Wun Fang, Jai-Sing Yang, Jo-Hua Chiang, Po-Chuen Shieh, Fuu-Jen Tsai, Chia-Wen Tsai, Wen-Shin Chang

BioMedicine

Metformin has been used to treat cases of type 2 diabetes mellitus, and mounting studies have shown that metformin can act alone or in synergy with other anticancer agents to achieve anti-cancer efficacies on various types of tumors. However, the role of metformin in either inducing autophagy and cisplatin-resistance of human gastric cancer (GC) cells has never been examined. The study has established a cisplatin-resistant GC cell line and investigated the effects of metformin on inducing autophagy on it. The results demonstrated that treatment with metformin can concentration-dependently suppress the cell viability and cell confluence of cisplatin-resistant GC cells, while …