Volume 63, Issue 11 pp. 2218-2236
RESEARCH ARTICLE

Pyroptosis-related gene GSDMC indicates poor prognosis and promotes tumor progression by activating the AKT/mTOR pathway in lung squamous cell carcinoma

Yi Zhang

Yi Zhang

Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China

Department of Clinical Laboratory, Fujian Provincial Hospital, Fuzhou, Fujian, China

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Yuzhi Wang

Yuzhi Wang

Department of Laboratory Medicine, Deyang People's Hospital, Deyang, Sichuan, China

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Jiamiao Weng

Jiamiao Weng

Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China

Department of Clinical Laboratory, Fujian Provincial Hospital, Fuzhou, Fujian, China

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Jianlin Chen

Jianlin Chen

Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China

Department of Clinical Laboratory, Fujian Provincial Hospital, Fuzhou, Fujian, China

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Yue Zheng

Yue Zheng

Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China

Department of Clinical Laboratory, Fujian Provincial Hospital, Fuzhou, Fujian, China

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Yu Xia

Yu Xia

Department of Clinical Laboratory, Fujian Provincial Hospital, Fuzhou, Fujian, China

Integrated Chinese and Western Medicine College, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China

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Zhixin Huang

Zhixin Huang

Department of Clinical Laboratory, Fujian Provincial Hospital, Fuzhou, Fujian, China

Integrated Chinese and Western Medicine College, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China

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Lilan Zhao

Lilan Zhao

Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China

Department of General Thoracic Surgery, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, Fujian, China

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Xiongfeng Chen

Xiongfeng Chen

Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China

Department of Scientific Research, Fujian Provincial Hospital, Fuzhou, Fujian, China

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Haijun Tang

Haijun Tang

Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China

Fujian Provincial Key Laboratory of Critical Care Medicine, Fujian Provincial Key Laboratory of Cardiovascular Disease, Fuzhou, Fujian, China

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Yi Huang

Corresponding Author

Yi Huang

Shengli Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China

Department of Clinical Laboratory, Fujian Provincial Hospital, Fuzhou, Fujian, China

Fujian Provincial Key Laboratory of Critical Care Medicine, Fujian Provincial Key Laboratory of Cardiovascular Disease, Fuzhou, Fujian, China

Center for Experimental Research in Clinical Medicine, Fujian Provincial Hospital, Fuzhou, Fujian, China

Central Laboratory, Fujian Provincial Hospital, Fuzhou, Fujian, China

Correspondence Yi Huang, Shengli Clinical Medical College, Fujian Medical University, Fujian, Fuzhou 350001, China.

Email: [email protected]

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First published: 13 August 2024

Yi Zhang and Yuzhi Wang contributed equally to this work.

Abstract

Lung squamous cell carcinoma (LUSC) is one of the most common malignant tumors of the respiratory. Pyroptosis plays an essential role in cancer, but there is limited research investigating pyroptosis in LUSC. In this study, pyroptosis-related genes were observed to have extensive multiomics alterations in LUSC through analysis of the TCGA database. Utilizing machine learning for selection and verifying expression levels, GSDMC was chosen as the critical gene for further experiments. Our research found that GSDMC is overexpressed in LUSC tissues and cells, and is associated with poor prognosis. Knockdown of GSDMC in LUSC inhibits cell proliferation, invasion, metastasis, chemotherapeutic sensitivity, and reduced tumor formation in nude mice, accompanied by downregulation of proliferative and EMT-related protein expression. However, these effects were counteracted in cells where GSDMC is overexpressed. Mechanistically, the oncogenic role of GSDMC is primarily achieved through the activation of the AKT/mTOR pathway, and this effect can be significantly reversed by rapamycin. Finally, SMAD4's interaction with the promoter region of GSDMC results in the suppression of GSDMC expression. In summary, our study through bioinformatics and experimental approaches not only proves that SMAD4 regulates the protumorigenic role of GSDMC through transcriptional targeting, but also indicates the possibility of developing the SMAD4/GSDMC/AKT/mTOR signaling axis as a potential biomarker and treatment target for LUSC.

CONFLICT OF INTEREST STATEMENT

The authors declare no conflict of interest.

DATA AVAILABILITY STATEMENT

The original contributions presented in the study are included in the article/supplementary material, further inquiries can be directed to the corresponding author. The data that support the findings of this study are available from the corresponding author upon reasonable request.

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