Landscape of C-MET overexpression in non-small cell lung cancer: a large-scale study of clinicomolecular features and prognosis based on Chinese data

Autor: Shuting Zhan, Jianfu Li, Bo Cheng, Caichen Li, Yi Feng, Lei Fan, Shan Xiong, Wenchuang Zeng, Qi Cai, Yang Xiang, Huiting Wang, Chunyan Li, Peiling Chen, Xin Zheng, Wenhai Fu, Zhexue Hao, Jianxing He, Wenhua Liang
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Therapeutic Advances in Medical Oncology, Vol 16 (2024)
Druh dokumentu: article
ISSN: 1758-8359
17588359
DOI: 10.1177/17588359241279715
Popis: Background: Real-world data on C-MET protein overexpression in non-small cell lung cancer (NSCLC) patients, particularly among the Asian Chinese population, are limited. Objectives: This study aimed to evaluate the clinicomolecular characteristics and prognosis of C-MET overexpression in Chinese NSCLC patients, focusing on those with positive C-MET overexpression (immunohistochemistry (IHC) 3+). Design: A retrospective and observational study. Methods: Data were collected from NSCLC patients diagnosed at the First Affiliated Hospital of Guangzhou Medical University between November 2006 and April 2021. We identified C-MET overexpression using IHC and C-MET overexpression positivity was defined as IHC 3+ with ⩾50% tumor cells. Additionally, patient genotypes were collected for subgroup analysis. Results: Data from 9785 NSCLC patients were collected. C-MET (−) accounted for 5% (503/9785), C-MET (+) for 27% (2654/9785), C-MET (++) for 36% (3464/9785), and C-MET (+++) for 32% (3164/9785). Genetic testing was available for 4326 patients. Wild-type was observed in 37% (1591 cases), with epidermal growth factor receptor ( EGFR ) abnormalities being the most common at 49% (2127 cases). Positive C-MET overexpression correlated significantly with women ( p
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