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Yang L, Yang Z, Zuo C, Lv X, Liu T, Jia C, Chen H. Epidemiological evidence for associations between variants in CHRNA genes and risk of lung cancer and chronic obstructive pulmonary disease. Front Oncol 2022; 12:1001864. [PMID: 36276121 PMCID: PMC9582127 DOI: 10.3389/fonc.2022.1001864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 09/21/2022] [Indexed: 12/24/2022] Open
Abstract
Background Genetic studies have previously reported that single-nucleotide polymorphisms (SNPs) in CHRNA genes (such as CHRNA3, CHRNA4, CHRNA5, or CHRNA3-CHRNA5-CHRNB4 clusters) are linked to the risk of neoplastic and non-neoplastic diseases. However, these conclusions were controversial and no systematic research synopsis has been available. We aimed to synthesize current knowledge of variants in the CHRNA genes on the risk of diseases. Methods We systematically searched for publications using PubMed, Medline, and Web of Science on or before 25 August 2021. A total of 1,818 publications were identified, of which 29 were deemed eligible for inclusion that could be used to perform meta-analysis based on at least three data sources to assess whether the morbidity associated with neoplastic and non-neoplastic diseases can be attributed to SNPs in CHRNA genes. To further evaluate the authenticity of cumulative evidence proving significant associations, the present study covered the Venice criteria and false-positive report probability tests. Through the Encyclopedia of DNA Elements (ENCODE) project, we created functional annotations for strong associations. Results Meta-analyses were done for nine genetic variants with two diseases {chronic obstructive pulmonary disease (COPD) and lung cancer (LC)}that had at least three data sources. Interestingly, eight polymorphisms were significantly related to changes in the susceptibility COPD and LC (p < 0.05). Of these, strong evidence was assigned to six variants (28 significant associations): CHRNA3 rs1051730, CHRNA3 rs6495309, and CHRNA5 rs16969968 with COPD risk, and CHRNA3 rs1051730, CHRNA3 rs578776, CHRNA3 rs6495309, CHRNA3 rs938682, CHRNA5 rs16969968, and CHRNA5 rs588765 with LC risk; moderate evidence was assigned to five SNPs (12 total associations) with LC or COPD risk. Data from ENCODE and other public databases showed that SNPs with strong evidence may be located in presumptive functional regions. Conclusions Our study summarized comprehensive evidence showing that common mutations in CHRNA genes are strongly related to LC and COPD risk. The study also elucidated the vital function of CHRNA genes in genetic predispositions to human diseases.
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Affiliation(s)
- Lei Yang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zelin Yang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chunjian Zuo
- Department of Thoracic Surgery, Army Medical Center of People’s Liberation Army of China (PLA), Chongqing, China
| | - Xiaolong Lv
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Tianyu Liu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chenhao Jia
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Huanwen Chen
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Huanwen Chen,
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Pal K, Hussain T, Xie H, Li S, Yang P, Mansfield A, Lou Y, Chowdhury S, Mukhopadhyay D. Expression, correlation, and prognostic significance of different nicotinic acetylcholine receptors, programed death ligand 1, and dopamine receptor D2 in lung adenocarcinoma. Front Oncol 2022; 12:959500. [PMID: 36072788 PMCID: PMC9441878 DOI: 10.3389/fonc.2022.959500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/21/2022] [Indexed: 12/24/2022] Open
Abstract
Objective The objective of this study is to evaluate the expression of different nicotinic acetylcholine receptors (nAChRs), programmed death ligand-1 (PD-L1), and dopamine receptor D2 (DRD2) as prognostic factors in lung cancer and any correlation among them. Since all of the above genes are typically upregulated in response to smoking, we hypothesized that a correlation might exist between DRD2, PD-L1, and nAChR expression in NSCLC patients with a smoking history and a prediction model may be developed to assess the clinical outcome. Methods We retrospectively analyzed samples from 46 patients with primary lung adenocarcinoma who underwent surgical resection at Mayo Clinic Rochester from June 2000 to October 2008. The expression of PD-L1, DRD2, CHRNA5, CHRNA7, and CHRNA9 were analyzed by quantitative PCR and correlated amongst themselves and with age, stage and grade, smoking status, overall survival (OS), and relapse-free survival (RFS). Results Only PD-L1 showed a statistically significant increase in expression in patients older than 65. All the above genes showed higher expression in stage IIIB than IIIA, but none reached statistical significance. Interestingly, we did not observe significant differences among never, former, and current smokers, but patients with pack years greater than 30 showed significantly higher expression of CHRNA9. We observed a strong positive correlation between PD-L1/DRD2, PD-L1/CHRNA5, and CHRNA5/CHRNA7 and a weak positive correlation between DRD2/CHRNA5 and DRD2/CHRNA7. Older age was independently associated with poor OS, whereas lower CHRNA7 expression was independently associated with better OS. Conclusions We observed strong positive correlations among PD-L1, DRD2, and some of the nAChRs. We investigated their prognostic significance in lung cancer patients and found CHRNA7 to be an independent prognostic factor. Overall, the results obtained from this preliminary study warrant a large cohort-based analysis that may ultimately lead to potential patient-specific stratification biomarkers predicting cancer-treatment outcomes.
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Affiliation(s)
- Krishnendu Pal
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, FL, United States
| | - Tabish Hussain
- Genomics and Molecular Medicine Unit, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi, India
| | - Hao Xie
- Division of Medical Oncology, Mayo Clinic, Rochester, MN, United States
| | - Shenduo Li
- Division of Hematology and Medical Oncology, Mayo Clinic, Jacksonville, FL, United States
| | - Ping Yang
- Department of Quantitative Health Sciences, Mayo Clinic Scottsdale, AZ, United States
| | - Aaron Mansfield
- Division of Medical Oncology, Mayo Clinic, Rochester, MN, United States
| | - Yanyan Lou
- Division of Hematology and Medical Oncology, Mayo Clinic, Jacksonville, FL, United States
| | - Shantanu Chowdhury
- Integrative and Functional Biology Unit, CSIR- Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research, CSIR- Institute of Genomics and Integrative Biology, New Delhi, India
| | - Debabrata Mukhopadhyay
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, FL, United States
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Yi X, Li W, Wang Y, Chen X, Ye F, Sun G, Chen J. The relationship between CHRNA5/A3/B4 gene cluster polymorphisms and lung cancer risk: An updated meta-analysis and systematic review. Medicine (Baltimore) 2021; 100:e24355. [PMID: 33578531 PMCID: PMC7886493 DOI: 10.1097/md.0000000000024355] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 12/22/2020] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Genetic polymorphisms in the 15q25 region have been associated with the risk of lung cancer (LC). However, studies have yielded conflicting results. METHODS Searches were conducted in databases, including PubMed, EMbase, Web of Science, CNKI, and Wanfang, for case-control studies up to August 1, 2019. After retrieving eligible studies and data extraction, we calculated pooled odds ratios with 95% confidence intervals. In the meta-analysis, we included 32 publications with a total of 52,795 patients with LC and 97,493 control cases to evaluate the polymorphisms in the CHRNA5/A3/B4 gene cluster in the 15q25 region. RESULTS Data of the meta-analysis showed a significantly increased risk of LC in the presence of genetic polymorphisms (rs1051730, rs16969968, rs8034191). In the smoking subgroup, the CHRNA3 rs1051730 polymorphism was found to contribute to LC risk using following 5 models: the allelic model, the homozygous model, the heterozygous model, the dominant model, and the recessive model. Thus, the rs1051730 polymorphism may modify LC susceptibility under the condition of smoking. Stratification studies for CHRNA5-rs8034191 showed that Caucasian groups with the wild-type genotype (C/C) may be susceptible to LC in all 5 models. No significant relationship between CHRNA3 rs6495309 or rs3743073 and LC susceptibility was found. However, Asians with the rs3743037 B-allele showed an obviously higher risk of LC susceptibility than the Caucasian population, observed via allelic, heterozygous, and dominant models. CONCLUSIONS The 3 polymorphisms of rs1051730, rs16969968 and rs8034191 in the CHRNA5/A3/B4 gene cluster in the 15q25 region were associated with LC risk, which might be influenced by ethnicity and smoking status.
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Affiliation(s)
- Xingxu Yi
- Department of Pathology and Laboratory Medicine, Hefei Cancer Hospital, Chinese Academy of Sciences
| | - Wanzhen Li
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Anhui Medical University
| | - Yiyuan Wang
- Division of Life Sciences and Medicine, the First Affiliated Hospital of USTC, University of Science and Technology of China, Anhui Provincial Hospital, Hefei, Anhui
| | - Xueran Chen
- Department of Pathology and Laboratory Medicine, Hefei Cancer Hospital, Chinese Academy of Sciences
| | - Fang Ye
- Department of Pathology and Laboratory Medicine, Hefei Cancer Hospital, Chinese Academy of Sciences
| | - Gengyun Sun
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Anhui Medical University
| | - Jingxian Chen
- National Clinical Research Center for Respiratory Diseases, Guangzhou Medical University & KingMed Diagnostics Inc., Guangzhou, China
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Yang X, Guo X, Huang Z, Da Y, Xing W, Li F, Li M, Sun K, Jia H, Zhu Y. CHRNA5/CHRNA3 gene cluster is a risk factor for lumbar disc herniation: a case-control study. J Orthop Surg Res 2019; 14:243. [PMID: 31362771 PMCID: PMC6668080 DOI: 10.1186/s13018-019-1254-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 07/02/2019] [Indexed: 12/13/2022] Open
Abstract
Background Lumbar disc herniation, a type of chronic low back pain syndrome, is caused by the lumbar intervertebral disk degeneration. Genetic variation in the CHRNA5/CHRNA3 has shown strong associations with smoking-related diseases. This study’s aim is to test whether single-nucleotide polymorphisms in the CHRNA5/CHRNA3 gene are associated with lumbar disc herniation risk. Methods The genotype frequency distributions of the polymorphisms were detected by polymerase chain reaction-restriction fragment length polymorphism in 380 lumbar disc herniation patients (case group) and 400 healthy individuals (control group). Allelic, genotypic, and haplotype analyses were performed. Results We found that the individuals with rs8040868 CT genotype had a 0.46-fold higher risk of lumbar disc herniation than those with rs8040868 TT genotype, in men group (OR = 0.46, 95% CI 0.25–0.84, p = 0.012). Also among women, rs8040868 CT + CC genotype still reduced the risk of lumbar disc herniation under the dominant model (OR = 0.50, 95% CI 0.28–0.89, p = 0.019). Haplotype analysis showed that compared with the CHRNA5 “TACAACCG” wild-type, the “TACACCCG” haplotype was found to be associated with a decreased risk of lumbar disc herniation (LDH) (OR = 0.79, 95% CI 0.63–1.00, p = 0.047), while, in the less than 50-year-old group, CHRNA5 “TACACCCG” increased the risk of LDH (OR = 1.46, 95% CI 1.01–2.13, p = 0.047). Conclusions Our data suggest that gene variance in the CHRNA5/CHRNA3 is associated with risk of lumbar disc herniation in the case-control study.
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Affiliation(s)
- Xuejun Yang
- Spine (Thoracic and Vertebra) Department, the Second Affiliated Hospital of Inner Mongolia University, #1 Yingfang Road, Hohhot, 010050, Inner Mongolia, China
| | - Xiaodong Guo
- Inner Mongolia People's Hospital, Hohhot, Inner Mongolia, China
| | - Zhi Huang
- Spine (Thoracic and Vertebra) Department, the Second Affiliated Hospital of Inner Mongolia University, #1 Yingfang Road, Hohhot, 010050, Inner Mongolia, China
| | - Yifeng Da
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Wenhua Xing
- Spine (Thoracic and Vertebra) Department, the Second Affiliated Hospital of Inner Mongolia University, #1 Yingfang Road, Hohhot, 010050, Inner Mongolia, China
| | - Feng Li
- Spine (Thoracic and Vertebra) Department, the Second Affiliated Hospital of Inner Mongolia University, #1 Yingfang Road, Hohhot, 010050, Inner Mongolia, China
| | - Manglai Li
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Ke Sun
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Haiyu Jia
- The Affiliated Hospital of Inner Mongolia Medical College, #1 North Tongdao Road, Hohhot, 010020, Inner Mongolia, China.
| | - Yong Zhu
- Spine (Thoracic and Vertebra) Department, the Second Affiliated Hospital of Inner Mongolia University, #1 Yingfang Road, Hohhot, 010050, Inner Mongolia, China.
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Lorenzo-González M, Fernández-Villar A, Ruano-Ravina A. Disentangling tobacco-related lung cancer-genome-wide interaction study of smoking behavior and non-small cell lung cancer risk. J Thorac Dis 2019; 11:10-13. [PMID: 30863557 DOI: 10.21037/jtd.2018.11.29] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- María Lorenzo-González
- Service of Preventive Medicine, University Hospital Complex of Ourense, Ourense, Spain.,Department of Preventive Medicine and Public Health, University of Santiago de Compostela, A Coruña, Spain
| | - Alberto Fernández-Villar
- Service of Neumology, University Hospital Complex of Vigo, Vigo, Spain.,Instituto de Investigación Sanitaria Galicia Sur (IISGS), Vigo, Spain
| | - Alberto Ruano-Ravina
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, A Coruña, Spain.,CIBER de Epidemiología y Salud Pública CIBERESP, CIBERESP, Spain.,Department of Epidemiology, Brown School of Public Health, Brown University, Providence, Rhode Island, USA
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