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Li R, Tong R, Zhang JL, Zhang Z, Deng M, Hou G. Comprehensive molecular analyses of cuproptosis-related genes with regard to prognosis, immune landscape, and response to immune checkpoint blockers in lung adenocarcinoma. J Cancer Res Clin Oncol 2024; 150:246. [PMID: 38722401 PMCID: PMC11081990 DOI: 10.1007/s00432-024-05774-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 05/02/2024] [Indexed: 05/12/2024]
Abstract
BACKGROUND Recent studies have emphasized the importance of the biological processes of different forms of cell death in tumor heterogeneity and anti-tumor immunity. Nonetheless, the relationship between cuproptosis and lung adenocarcinoma (LUAD) remains largely unexplored. METHODS Data for 793 LUAD samples and 59 normal lung tissues obtained from TCGA-LUAD cohort GEO datasets were used in this study. A total of 165 LUAD tissue samples and paired normal lung tissue samples obtained from our hospital were used to verify the prognostic value of dihydrolipoamide S-acetyltransferase (DLAT) and dihydrolipoamide branched chain transacylase E2 (DBT) for LUAD. The cuproptosis-related molecular patterns of LUAD were identified using consensus molecular clustering. Recursive feature elimination with random forest and a tenfold cross-validation method was applied to construct the cuproptosis score (CPS) for LUAD. RESULTS Bioinformatic and immunohistochemistry (IHC) analyses revealed that 13 core genes of cuproptosis were all significantly elevated in LUAD tissues, among which DBT and DLAT were associated with poor prognosis (DLAT, HR = 6.103; DBT, HR = 4.985). Based on the expression pattern of the 13 genes, two distinct cuproptosis-related patterns have been observed in LUAD: cluster 2 which has a relatively higher level of cuproptosis was characterized by immunological ignorance; conversely, cluster 1 which has a relatively lower level of cuproptosis is characterized by TILs infiltration and anti-tumor response. Finally, a scoring scheme termed the CPS was established to quantify the cuproptosis-related pattern and predict the prognosis and the response to immune checkpoint blockers of each individual patient with LUAD. CONCLUSION Cuproptosis was found to influence tumor microenvironment (TME) characteristics and heterogeneity in LUAD. Patients with a lower CPS had a relatively better prognosis, more abundant immune infiltration in the TME, and an enhanced response to immune checkpoint inhibitors.
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Affiliation(s)
- Ruixia Li
- Department of Pulmonary and Critical Care Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Run Tong
- National Center for Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
- National Clinical Research Center for Respiratory Diseases, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, People's Republic of China
- State Key Laboratory of Respiratory Health and Multimorbidity, Beijing, People's Republic of China
| | - Jasmine Lin Zhang
- American International School, Hong Kong, People's Republic of China
| | - Zhe Zhang
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Mingming Deng
- National Center for Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
- National Clinical Research Center for Respiratory Diseases, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, People's Republic of China
- State Key Laboratory of Respiratory Health and Multimorbidity, Beijing, People's Republic of China
| | - Gang Hou
- National Center for Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
- National Clinical Research Center for Respiratory Diseases, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, People's Republic of China.
- State Key Laboratory of Respiratory Health and Multimorbidity, Beijing, People's Republic of China.
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Lai SW, Weng PW, Yadav VK, Pikatan NW, Yeh CT, Hsieh MS, Chou CL. Underlying mechanisms of novel cuproptosis-related dihydrolipoamide branched-chain transacylase E2 (DBT) signature in sunitinib-resistant clear-cell renal cell carcinoma. Aging (Albany NY) 2024; 16:2679-2701. [PMID: 38305803 PMCID: PMC10911363 DOI: 10.18632/aging.205504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 11/30/2023] [Indexed: 02/03/2024]
Abstract
Renal cell carcinoma (RCC) is the predominant form of malignant kidney cancer. Sunitinib, a primary treatment for advanced, inoperable, recurrent, or metastatic RCC, has shown effectiveness in some patients but is increasingly limited by drug resistance. Recently identified cuproptosis, a copper-ion-dependent form of programmed cell death, holds promise in combating cancer, particularly drug-resistant types. However, its effectiveness in treating drug resistant RCC remains to be determined. Exploring cuproptosis's regulatory mechanisms could enhance RCC treatment strategies. Our analysis of data from the GEO and TCGA databases showed that the cuproptosis-related gene DBT is markedly under expressed in RCC tissues, correlating with worse prognosis and disease progression. In our study, we investigated copper CRGs in ccRCC, noting substantial expression differences, particularly in advanced-stage tumors. We established a connection between CRG expression levels and patient survival, positioning CRGs as potential therapeutic targets for ccRCC. In drug resistant RCC cases, we found distinct expression patterns for DBT and GLS CRGs, linked to treatment resistance. Our experiments demonstrated that increasing DBT expression significantly reduces RCC cell growth and spread, underscoring its potential as a therapeutic target. This research sheds new light on the role of CRGs in ccRCC and their impact on drug resistance.
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Affiliation(s)
- Shiue-Wei Lai
- Division of Hematology/Oncology, Department of Internal Medicine, Tri-service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Pei-Wei Weng
- Department of Orthopaedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Orthopaedics, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Vijesh Kumar Yadav
- Department of Medical Research, Taipei Medical University Shuang-Ho Hospital, Taipei, Taiwan
| | - Narpati Wesa Pikatan
- Department of Medical Research, Taipei Medical University Shuang-Ho Hospital, Taipei, Taiwan
| | - Chi-Tai Yeh
- Department of Medical Research, Taipei Medical University Shuang-Ho Hospital, Taipei, Taiwan
- Continuing Education Program of Food Biotechnology Applications, College of Science and Engineering, National Taitung University, Taitung, Taiwan
| | - Ming-Shou Hsieh
- Department of Dentistry, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei City, Taiwan
| | - Chu-Lin Chou
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Taipei Medical University-Research Center of Urology and Kidney, Taipei Medical University, Taipei, Taiwan
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei, Taiwan
- Division of Nephrology, Department of Internal Medicine, Hsin Kuo Min Hospital, Taipei Medical University, Taoyuan City, Taiwan
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