Long Jiang1, Mari Mino-Kenudson2, Anja C Roden3, Rafael Rosell4, Miguel Ángel Molina5, Raja M Flores6, Lothar R Pilz7, Alessandro Brunelli8, Federico Venuta9, Jianxing He10. 1. Department of Thoracic Surgery/Oncology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Disease, China State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou, PR China. Electronic address: drjiang_long@163.com. 2. Department of Pathology, Massachusetts General Hospital, Boston, USA. 3. Department of Laboratory Medicine and Pathology, Mayo Clinic Rochester, MN, USA. 4. Cancer Biology and Precision Medicine Program, Catalan Institute of Oncology, Hospital Germans Trias I Pujol, Ctra Canyet, Badalona, Barcelona, Spain. 5. Pangaea Biotech, S.L., Hospital Universitario Quirón Dexeus, Barcelona, Spain. 6. Department of Thoracic Surgery, Mount Sinai School of Medicine, New York, NY, USA. 7. Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1, 68167, Mannheim, Germany. 8. Department of Thoracic Surgery, St. James's University Hospital, Leeds, UK. 9. Department of Surgery "Paride Stefanini"-Thoracic Surgery Unit, Policlinico Umberto I, University of Rome, Italy. 10. Department of Thoracic Surgery/Oncology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Disease, China State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou, PR China. Electronic address: drhe_jianxing@163.com.
Abstract
OBJECTIVES: This study aims to determine the association of EGFR/KRAS mutation status with histological subtypes of lung adenocarcinoma (LAC) based on the IASLC/ATS/ERS classification. METHODS: Pubmed and Cochrane databases were searched from January 2011 to June 2018 for studies that included patients with LAC who underwent surgical resection were classified according to the new IASLC/ATS/ERS classification. EGFR/KRAS status assessment was requireded. The primary outcome was determined by the odds ratio (OR) of the incidence of mutation status of certain of each histological subtype. The reference group consisted of EGFR/KRAS mutation negative patients. RESULTS: Twenty-seven eligible studies involving 9022 patients with mutation gene detection were included for analysis. Among them, 6717 (74.5%) patients were from the Asian region and, 2305 (25.5%) patients were from Non-Asian regions. The most prevalent subtype was acinar (34.7%), followed by papillary (22.9%), lepidic (18.9%), solid (13.6%), micropapillary (6.3%), and invasive mucinous adenocarcinoma (3.5%). EGFR mutations were more common in patients with resected lepidic predominant adenocarcinoma (OR,1.76; 95%CI, 1.38-2.24;p < 0.01) and were rarely found in solid predominant adenocarcinoma (OR,0.28; 95%CI, 0.23-0.34;p < 0.01) or IMA (OR,0.10; 95%CI, 0.06-0.14;p < 0.01). Conversely, KRAS mutations were characterized by IMA (OR,7.01; 95%CI, 5.11-9.62;p < 0.01), and were less frequently identified in lepidic (OR,0.58; 95%CI, 0.45-0.75;p < 0.01) and acinar (OR,0.65; 95%CI, 0.55-0.78;p < 0.01) predominant subtypes. Further analyses were performed in Asian and Non-Asian groups and the results were consistent. CONCLUSIONS: The current study confirms that the IASLC/ATS/ERS classification is associated with driver gene alterations in resected LAC.
OBJECTIVES: This study aims to determine the association of EGFR/KRAS mutation status with histological subtypes of lung adenocarcinoma (LAC) based on the IASLC/ATS/ERS classification. METHODS: Pubmed and Cochrane databases were searched from January 2011 to June 2018 for studies that included patients with LAC who underwent surgical resection were classified according to the new IASLC/ATS/ERS classification. EGFR/KRAS status assessment was requireded. The primary outcome was determined by the odds ratio (OR) of the incidence of mutation status of certain of each histological subtype. The reference group consisted of EGFR/KRAS mutation negative patients. RESULTS: Twenty-seven eligible studies involving 9022 patients with mutation gene detection were included for analysis. Among them, 6717 (74.5%) patients were from the Asian region and, 2305 (25.5%) patients were from Non-Asian regions. The most prevalent subtype was acinar (34.7%), followed by papillary (22.9%), lepidic (18.9%), solid (13.6%), micropapillary (6.3%), and invasive mucinous adenocarcinoma (3.5%). EGFR mutations were more common in patients with resected lepidic predominant adenocarcinoma (OR,1.76; 95%CI, 1.38-2.24;p < 0.01) and were rarely found in solid predominant adenocarcinoma (OR,0.28; 95%CI, 0.23-0.34;p < 0.01) or IMA (OR,0.10; 95%CI, 0.06-0.14;p < 0.01). Conversely, KRAS mutations were characterized by IMA (OR,7.01; 95%CI, 5.11-9.62;p < 0.01), and were less frequently identified in lepidic (OR,0.58; 95%CI, 0.45-0.75;p < 0.01) and acinar (OR,0.65; 95%CI, 0.55-0.78;p < 0.01) predominant subtypes. Further analyses were performed in Asian and Non-Asian groups and the results were consistent. CONCLUSIONS: The current study confirms that the IASLC/ATS/ERS classification is associated with driver gene alterations in resected LAC.
Authors: Yan Li; Yan Tan; Song Hu; Jun Xie; Zhantao Yan; Xian Zhang; Yun Zong; Han Han-Zhang; Qing Li; Chong Li Journal: J Cancer Date: 2021-04-02 Impact factor: 4.207