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Fu Y, Zhang L, Xing Y, Deng S. Quantitative analysis of DNA methylation using sequence-specific, real-time loop-mediated isothermal amplification. Anal Chim Acta 2022; 1235:340535. [DOI: 10.1016/j.aca.2022.340535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/26/2022] [Accepted: 10/16/2022] [Indexed: 11/01/2022]
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2
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Long E, Patel H, Byun J, Amos CI, Choi J. Functional studies of lung cancer GWAS beyond association. Hum Mol Genet 2022; 31:R22-R36. [PMID: 35776125 DOI: 10.1093/hmg/ddac140] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/01/2022] [Accepted: 06/16/2022] [Indexed: 11/14/2022] Open
Abstract
Fourteen years after the first genome-wide association study (GWAS) of lung cancer was published, approximately forty-five genomic loci have now been significantly associated with lung cancer risk. While functional characterization was performed for several of these loci, a comprehensive summary of current molecular understanding of lung cancer risk has been lacking. Further, many novel computational and experimental tools now became available to accelerate the functional assessment of disease-associated variants, moving beyond locus-by-locus approaches. In this review, we first highlight the heterogeneity of lung cancer GWAS findings across histological subtypes, ancestries, and smoking status, which poses unique challenges to follow-up studies. We then summarize the published lung cancer post-GWAS studies for each risk-associated locus to assess the current understanding of biological mechanisms beyond the initial statistical association. We further summarize strategies for GWAS functional follow-up studies considering cutting-edge functional genomics tools and providing a catalog of available resources relevant to lung cancer. Overall, we aim to highlight the importance of integrating computational and experimental approaches to draw biological insights from the lung cancer GWAS results beyond association.
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Affiliation(s)
- Erping Long
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Harsh Patel
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jinyoung Byun
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, 77030, USA.,Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Christopher I Amos
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, 77030, USA.,Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA.,Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Jiyeon Choi
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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3
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Ahmad S, Hossain MN, Ahmadi S, Kerman K, Kraatz HB. Electrochemical distinction of neuronal and neuroblastoma cells via the phosphorylation of the cellular extracellular membrane. Anal Biochem 2021; 645:114434. [PMID: 34785194 DOI: 10.1016/j.ab.2021.114434] [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: 09/01/2020] [Revised: 10/10/2021] [Accepted: 10/21/2021] [Indexed: 11/20/2022]
Abstract
In this contribution we establish a proof of concept method for monitoring, quantifying and differentiating the extracellular phosphorylation of Human SHSY5Y undifferentiated neuronal cells and neuroblastoma cells by three prominent ectokinases PKA, PKC and Src. Herein it is demonstrated that a combination of different experimental techniques, including fluroesence microscopy, quartz crystal microscopy (QCM) and electrochemistry, can be used to detect extracellular phosphorylation levels of neuronal and neuroblastoma cells. Phosphorylation profiles of the three ectokinases, PKA, PKC and Src, were investigated using fluorescence microscopy and the number of phosphorylation sites per kinase was estimated using QCM. Finally, the phosphorylation of the extracellular membrane was determined using electrochemistry. Our results clearly demonstrate that the extracellular phosphorylation of neuronal cells differs significantly in terms of its phosphorylation profile from diseased neuroblastoma cells and the strength of surface electrochemical techniques in the differentiation process. We reveal that using electrochemistry, the percent compositions of neuronal and neuroblastoma cells can also be identified.
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Affiliation(s)
- S Ahmad
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada
| | - M N Hossain
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada
| | - S Ahmadi
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada
| | - K Kerman
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada
| | - H-B Kraatz
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, M1C 1A4, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, M5S 3H6, Canada.
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4
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Li X, Wu Q, Zhou B, Liu Y, Lv J, Chang Q, Zhao Y. Umbrella Review on Associations Between Single Nucleotide Polymorphisms and Lung Cancer Risk. Front Mol Biosci 2021; 8:687105. [PMID: 34540891 PMCID: PMC8446528 DOI: 10.3389/fmolb.2021.687105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 08/18/2021] [Indexed: 12/03/2022] Open
Abstract
The aim is to comprehensively and accurately assess potential relationships between single nucleotide polymorphisms (SNP) and lung cancer (LC) risk by summarizing the evidence in systematic reviews and meta-analyses. This umbrella review was registered with the PROSPERO international prospective register of systematic reviews under registration number CRD42020204685. The PubMed, Web of Science, and Embase databases were searched to identify eligible systematic reviews and meta-analyses from inception to August 14, 2020. The evaluation of cumulative evidence was conducted for associations with nominally statistical significance based on the Venice criteria and false positive report probability (FPRP). This umbrella review finally included 120 articles of a total of 190 SNP. The median number of studies and sample size included in the meta-analyses were five (range, 3–52) and 4 389 (range, 354–256 490), respectively. A total of 85 SNP (in 218 genetic models) were nominally statistically associated with LC risk. Based on the Venice criteria and FPRP, 13 SNP (in 22 genetic models), 47 SNP (in 99 genetic models), and 55 SNP (in 94 genetic models) had strong, moderate, and weak cumulative evidence of associations with LC risk, respectively. In conclusion, this umbrella review indicated that only 13 SNP (of 11 genes and one miRNA) were strongly correlated to LC risk. These findings can serve as a general and helpful reference for further genetic studies.
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Affiliation(s)
- Xiaoying Li
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qijun Wu
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Baosen Zhou
- Department of Clinical Epidemiology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yashu Liu
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jiale Lv
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qing Chang
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yuhong Zhao
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
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5
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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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6
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Al-Rashed S, Baker A, Ahmad SS, Syed A, Bahkali AH, Elgorban AM, Khan MS. Vincamine, a safe natural alkaloid, represents a novel anticancer agent. Bioorg Chem 2021; 107:104626. [PMID: 33450545 DOI: 10.1016/j.bioorg.2021.104626] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 02/09/2023]
Abstract
Vincamine, a well-known plant alkaloid, has been used as a dietary supplement and as a peripheral vasodilator to combat aging in humans. In this study, for the very first time, we demonstrated that vincamine can function as an anticancer agent in a human alveolar basal epithelial cell line A549 (IC50 = 309.7 μM). The anticancer potential of vincamine in A549 cells was assessed by molecular assays to determine cell viability, generation of intracellular ROS, nuclear condensation, caspase-3 activity and inhibition, and change in mitochondrial membrane potential (ΔΨm). In silico studies predicted that the anti-proliferative potential of vincamine is enhanced by its interaction with the apoptotic protein caspase-3, and that this interaction is driven by two hydrogen bonds and has a high free energy of binding (-5.64 kcal/mol) with an estimated association constant (Ka) of 73.67 μM. We found that vincamine stimulated caspase-3-dependent apoptosis and lowered mitochondrial membrane potential, which ultimately led to cytochrome C release. Vincamine was also found to quench hydroxyl free radicals and deplete iron ions in cancer cells. As a dietary supplement, vincamine is almost non-toxic in BEAS-2B and 3T3-L1 cells. Therefore, we propose that vincamine represents a safe anticancer agent in lung cancer cells. Its role in other cancers has yet to be explored.
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Affiliation(s)
- Sarah Al-Rashed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abu Baker
- Nanomedicine & Nanobiotechnology Lab, Department of Biosciences, Integral University, Lucknow 226026, India
| | - Syed Sayeed Ahmad
- Nanomedicine & Nanobiotechnology Lab, Department of Biosciences, Integral University, Lucknow 226026, India
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Ali H Bahkali
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abdallah M Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Mohd Sajid Khan
- Nanomedicine & Nanobiotechnology Lab, Department of Biosciences, Integral University, Lucknow 226026, India; Department of Biochemistry, Aligarh Muslim University, Aligarh 202002, U.P., India.
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7
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Becerra-Amezcua MP, Hernández-Sámano AC, Puch-Hau C, Aguilar MB, Collí-Dulá RC. Effect of pterois volitans (lionfish) venom on cholinergic and dopaminergic systems. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 77:103359. [PMID: 32146351 DOI: 10.1016/j.etap.2020.103359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 02/27/2020] [Accepted: 02/29/2020] [Indexed: 06/10/2023]
Abstract
Pterois volitans venom induces muscular fibrillation, which results from nerve transmission caused by the presence of acetylcholine (ACh). It also has cardiovascular effects that are due to its actions on muscarinic and nicotinic cholinergic receptors. In this study, we characterized the effects of P. volitans venom on nicotinic acetylcholine receptors (nAChRs) and dopaminergic neurons. After exposure to P. volitans venom, acetylcholinesterase (AChE) mRNA levels and the expression of the α2 subunit of nAChR increased in zebrafish embryos (15-20 somites). In addition, the lionfish venom blocked zebrafish α2 nAChR subunit functional expression and the ACh-induced response of human neuronal α3β2 receptors. The latter receptor was blocked by a protein fraction named F2, which was isolated from P. volitans venom using reversed phase high performance liquid chromatography (RP-HPLC). This venom causes death in dopaminergic neurons, and affects the cholinergic system. The effect of these two systems may result in retarded embryonic development of zebrafish, since the two systems function in a related manner to control growth hormone secretion.
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Affiliation(s)
- Mayra P Becerra-Amezcua
- Laboratorio de Biotecnología y Toxicología Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Departamento de Recursos del Mar, Km. 6 Antigua Carretera a Progreso, Cordemex, 97310 Mérida, Yucatán, Mexico.
| | - Arisaí C Hernández-Sámano
- Laboratorio de Neurofarmacología Marina, Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, 76230, Mexico
| | - Carlos Puch-Hau
- Laboratorio de Biotecnología y Toxicología Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Departamento de Recursos del Mar, Km. 6 Antigua Carretera a Progreso, Cordemex, 97310 Mérida, Yucatán, Mexico
| | - Manuel B Aguilar
- Laboratorio de Neurofarmacología Marina, Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, 76230, Mexico
| | - Reyna C Collí-Dulá
- Laboratorio de Biotecnología y Toxicología Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Departamento de Recursos del Mar, Km. 6 Antigua Carretera a Progreso, Cordemex, 97310 Mérida, Yucatán, Mexico; Consejo Nacional de Ciencia y Tecnología (CONACyT), Mexico
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8
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Sun Z, Bao J, Zhangsun M, Dong S, Zhangsun D, Luo S. αO-Conotoxin GeXIVA Inhibits the Growth of Breast Cancer Cells via Interaction with α9 Nicotine Acetylcholine Receptors. Mar Drugs 2020; 18:md18040195. [PMID: 32272701 PMCID: PMC7231225 DOI: 10.3390/md18040195] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 03/31/2020] [Accepted: 04/03/2020] [Indexed: 12/20/2022] Open
Abstract
The α9-containing nicotinic acetylcholine receptor (nAChR) is increasingly emerging as a new tumor target owing to its high expression specificity in breast cancer. αO-Conotoxin GeXIVA is a potent antagonist of α9α10 nAChR. Nevertheless, the anti-tumor effect of GeXIVA on breast cancer cells remains unclear. Cell Counting Kit-8 assay was used to study the cell viability of breast cancer MDA-MD-157 cells and human normal breast epithelial cells, which were exposed to different doses of GeXIVA. Flow cytometry was adopted to detect the cell cycle arrest and apoptosis of GeXIVA in breast cancer cells. Migration ability was analyzed by wound healing assay. Western blot (WB), quantitative real-time PCR (QRT-PCR) and flow cytometry were used to determine expression of α9-nAChR. Stable MDA-MB-157 breast cancer cell line, with the α9-nAChR subunit knocked out (KO), was established using the CRISPR/Cas9 technique. GeXIVA was able to significantly inhibit the proliferation and promote apoptosis of breast cancer MDA-MB-157 cells. Furthermore, the proliferation of breast cancer MDA-MB-157 cells was inhibited by GeXIVA, which caused cell cycle arrest through downregulating α9-nAChR. GeXIVA could suppress MDA-MB-157 cell migration as well. This demonstrates that GeXIVA induced a downregulation of α9-nAChR expression, and the growth of MDA-MB-157 α9-nAChR KO cell line was inhibited as well, due to α9-nAChR deletion. GeXIVA inhibits the growth of breast cancer cell MDA-MB-157 cells in vitro and may occur in a mechanism abolishing α9-nAChR.
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Affiliation(s)
- Zhihua Sun
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Key Laboratory for Marine Drugs of Haikou, School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, China; (Z.S.); (J.B.); (M.Z.); (S.D.)
| | - Jiaolin Bao
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Key Laboratory for Marine Drugs of Haikou, School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, China; (Z.S.); (J.B.); (M.Z.); (S.D.)
| | - Manqi Zhangsun
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Key Laboratory for Marine Drugs of Haikou, School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, China; (Z.S.); (J.B.); (M.Z.); (S.D.)
| | - Shuai Dong
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Key Laboratory for Marine Drugs of Haikou, School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, China; (Z.S.); (J.B.); (M.Z.); (S.D.)
| | - Dongting Zhangsun
- Medical School, Guangxi University, Nanning 530004, China
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Key Laboratory for Marine Drugs of Haikou, School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, China; (Z.S.); (J.B.); (M.Z.); (S.D.)
- Correspondence: (D.Z.); (S.L.)
| | - Sulan Luo
- Medical School, Guangxi University, Nanning 530004, China
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Key Laboratory for Marine Drugs of Haikou, School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, China; (Z.S.); (J.B.); (M.Z.); (S.D.)
- Correspondence: (D.Z.); (S.L.)
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Santoro A, Tomino C, Prinzi G, Lamonaca P, Cardaci V, Fini M, Russo P. Tobacco Smoking: Risk to Develop Addiction, Chronic Obstructive Pulmonary Disease, and Lung Cancer. Recent Pat Anticancer Drug Discov 2019; 14:39-52. [PMID: 30605063 DOI: 10.2174/1574892814666190102122848] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/11/2018] [Accepted: 12/27/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND The morbidity and mortality associated with tobacco smoking is well established. Nicotine is the addictive component of tobacco. Nicotine, through the non-neuronal α7nicotinic receptor, induces cell proliferation, neo-angiogenesis, epithelial to mesenchymal transition, and inhibits drug-induced apoptosis. OBJECTIVE To understand the genetic, molecular and cellular biology of addiction, chronic obstructive pulmonary disease and lung cancer. METHODS The search for papers to be included in the review was performed during the months of July- September 2018 in the following databases: PubMed (http://www.ncbi.nlm.nih.gov), Scopus (http://www.scopus.com), EMBASE (http://www.elsevier.com/online-tools/embase), and ISI Web of Knowledge (http://apps.webofknowledge.com/). The following searching terms: "nicotine", "nicotinic receptor", and "addiction" or "COPD" or "lung cancer" were used. Patents were retrieved in clinicaltrials.gov (https://clinicaltrials.gov/). All papers written in English were evaluated. The reference list of retrieved articles was also reviewed to identify other eligible studies that were not indexed by the above-mentioned databases. New experimental data on the ability of nicotine to promote transformation of human bronchial epithelial cells, exposed for one hour to Benzo[a]pyrene-7,8-diol-9-10-epoxide, are reported. RESULTS Nicotinic receptors variants and nicotinic receptors upregulation are involved in addiction, chronic obstructive pulmonary disease and/or lung cancer. Nicotine through α7nicotinic receptor upregulation induces complete bronchial epithelial cells transformation. CONCLUSION Genetic studies highlight the involvement of nicotinic receptors variants in addiction, chronic obstructive pulmonary disease and/or lung cancer. A future important step will be to translate these genetic findings to clinical practice. Interventions able to help smoking cessation in nicotine dependence subjects, under patent, are reported.
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Affiliation(s)
- Alessia Santoro
- Clinical and Molecular Epidemiology, IRCSS San Raffaele Pisana, Via di Valcannuta 247, I-00166 Rome, Italy
| | - Carlo Tomino
- Scientific Direction, IRCSS San Raffaele Pisana, Via di Valcannuta 247, I-00166 Rome, Italy
| | - Giulia Prinzi
- Clinical and Molecular Epidemiology, IRCSS San Raffaele Pisana, Via di Valcannuta 247, I-00166 Rome, Italy
| | - Palma Lamonaca
- Clinical and Molecular Epidemiology, IRCSS San Raffaele Pisana, Via di Valcannuta 247, I-00166 Rome, Italy
| | - Vittorio Cardaci
- Pulmonary Rehabilitation, IRCCS San Raffaele Pisana, Via della Pisana, 235, I-00163 Rome, Italy
| | - Massimo Fini
- Scientific Direction, IRCSS San Raffaele Pisana, Via di Valcannuta 247, I-00166 Rome, Italy
| | - Patrizia Russo
- Clinical and Molecular Epidemiology, IRCSS San Raffaele Pisana, Via di Valcannuta 247, I-00166 Rome, Italy
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Liu H, Luo J, Li Y, Zhu Q, Fang L, Huang H, Deng J, Zhang S, Huang J, Liang W, Zheng J. A novel photoelectrochemical strategy based on quenching effect of CdS quantum dots on PTB7 as photoelectroactive material for methylated DNA detection. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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11
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Liu H, Luo J, Fang L, Huang H, Deng J, Huang J, Zhang S, Li Y, Zheng J. An electrochemical strategy with tetrahedron rolling circle amplification for ultrasensitive detection of DNA methylation. Biosens Bioelectron 2018; 121:47-53. [DOI: 10.1016/j.bios.2018.07.055] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/23/2018] [Accepted: 07/25/2018] [Indexed: 12/20/2022]
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12
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Ji X, Bossé Y, Landi MT, Gui J, Xiao X, Qian D, Joubert P, Lamontagne M, Li Y, Gorlov I, de Biasi M, Han Y, Gorlova O, Hung RJ, Wu X, McKay J, Zong X, Carreras-Torres R, Christiani DC, Caporaso N, Johansson M, Liu G, Bojesen SE, Le Marchand L, Albanes D, Bickeböller H, Aldrich MC, Bush WS, Tardon A, Rennert G, Chen C, Teare MD, Field JK, Kiemeney LA, Lazarus P, Haugen A, Lam S, Schabath MB, Andrew AS, Shen H, Hong YC, Yuan JM, Bertazzi PA, Pesatori AC, Ye Y, Diao N, Su L, Zhang R, Brhane Y, Leighl N, Johansen JS, Mellemgaard A, Saliba W, Haiman C, Wilkens L, Fernandez-Somoano A, Fernandez-Tardon G, van der Heijden EHFM, Kim JH, Dai J, Hu Z, Davies MPA, Marcus MW, Brunnström H, Manjer J, Melander O, Muller DC, Overvad K, Trichopoulou A, Tumino R, Doherty J, Goodman GE, Cox A, Taylor F, Woll P, Brüske I, Manz J, Muley T, Risch A, Rosenberger A, Grankvist K, Johansson M, Shepherd F, Tsao MS, Arnold SM, Haura EB, Bolca C, Holcatova I, Janout V, Kontic M, Lissowska J, Mukeria A, Ognjanovic S, Orlowski TM, Scelo G, Swiatkowska B, Zaridze D, Bakke P, Skaug V, Zienolddiny S, Duell EJ, Butler LM, Koh WP, Gao YT, Houlston R, McLaughlin J, Stevens V, Nickle DC, Obeidat M, Timens W, Zhu B, Song L, Artigas MS, Tobin MD, Wain LV, Gu F, Byun J, Kamal A, Zhu D, Tyndale RF, Wei WQ, Chanock S, Brennan P, Amos CI. Identification of susceptibility pathways for the role of chromosome 15q25.1 in modifying lung cancer risk. Nat Commun 2018; 9:3221. [PMID: 30104567 PMCID: PMC6089967 DOI: 10.1038/s41467-018-05074-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 05/01/2018] [Indexed: 12/20/2022] Open
Abstract
Genome-wide association studies (GWAS) identified the chromosome 15q25.1 locus as a leading susceptibility region for lung cancer. However, the pathogenic pathways, through which susceptibility SNPs within chromosome 15q25.1 affects lung cancer risk, have not been explored. We analyzed three cohorts with GWAS data consisting 42,901 individuals and lung expression quantitative trait loci (eQTL) data on 409 individuals to identify and validate the underlying pathways and to investigate the combined effect of genes from the identified susceptibility pathways. The KEGG neuroactive ligand receptor interaction pathway, two Reactome pathways, and 22 Gene Ontology terms were identified and replicated to be significantly associated with lung cancer risk, with P values less than 0.05 and FDR less than 0.1. Functional annotation of eQTL analysis results showed that the neuroactive ligand receptor interaction pathway and gated channel activity were involved in lung cancer risk. These pathways provide important insights for the etiology of lung cancer.
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Grants
- P30 CA023108 NCI NIH HHS
- P30 CA076292 NCI NIH HHS
- U01 CA063464 NCI NIH HHS
- P50 CA070907 NCI NIH HHS
- R01 CA111703 NCI NIH HHS
- UM1 CA182876 NCI NIH HHS
- UL1 TR000117 NCATS NIH HHS
- P20 CA090578 NCI NIH HHS
- U19 CA148127 NCI NIH HHS
- P20 GM103534 NIGMS NIH HHS
- UL1 TR000445 NCATS NIH HHS
- R01 LM012012 NLM NIH HHS
- R01 CA092824 NCI NIH HHS
- R35 CA197449 NCI NIH HHS
- UM1 CA164973 NCI NIH HHS
- U01 CA167462 NCI NIH HHS
- U19 CA203654 NCI NIH HHS
- R01 CA144034 NCI NIH HHS
- P20 RR018787 NCRR NIH HHS
- S10 RR025141 NCRR NIH HHS
- R01 CA074386 NCI NIH HHS
- R01 CA176568 NCI NIH HHS
- K07 CA172294 NCI NIH HHS
- P50 CA119997 NCI NIH HHS
- G0902313 Medical Research Council
- R01 CA063464 NCI NIH HHS
- P01 CA033619 NCI NIH HHS
- R01 HL133786 NHLBI NIH HHS
- P30 CA177558 NCI NIH HHS
- P50 CA090578 NCI NIH HHS
- U01 HG004798 NHGRI NIH HHS
- R01 CA151989 NCI NIH HHS
- 001 World Health Organization
- 202849/Z/16/Z Wellcome Trust
- UM1 CA167462 NCI NIH HHS
- U01 CA164973 NCI NIH HHS
- This work was supported by National Institutes of Health (NIH) for the research of lung cancer (grant P30CA023108, P20GM103534 and R01LM012012); Trandisciplinary Research in Cancer of the Lung (TRICL) (grant U19CA148127); UICC American Cancer Society Beginning Investigators Fellowship funded by the Union for International Cancer Control (UICC) (to X.Ji). CAPUA study. This work was supported by FIS-FEDER/Spain grant numbers FIS-01/310, FIS-PI03-0365, and FIS-07-BI060604, FICYT/Asturias grant numbers FICYT PB02-67 and FICYT IB09-133, and the University Institute of Oncology (IUOPA), of the University of Oviedo and the Ciber de Epidemiologia y Salud Pública. CIBERESP, SPAIN. The work performed in the CARET study was supported by the The National Institute of Health / National Cancer Institute: UM1 CA167462 (PI: Goodman), National Institute of Health UO1-CA6367307 (PIs Omen, Goodman); National Institute of Health R01 CA111703 (PI Chen), National Institute of Health 5R01 CA151989-01A1(PI Doherty). The Liverpool Lung project is supported by the Roy Castle Lung Cancer Foundation. The Harvard Lung Cancer Study was supported by the NIH (National Cancer Institute) grants CA092824, CA090578, CA074386 The Multiethnic Cohort Study was partially supported by NIH Grants CA164973, CA033619, CA63464 and CA148127 The work performed in MSH-PMH study was supported by The Canadian Cancer Society Research Institute (020214), Ontario Institute of Cancer and Cancer Care Ontario Chair Award to R.J.H. and G.L. and the Alan Brown Chair and Lusi Wong Programs at the Princess Margaret Hospital Foundation. NJLCS was funded by the State Key Program of National Natural Science of China (81230067), the National Key Basic Research Program Grant (2011CB503805), the Major Program of the National Natural Science Foundation of China (81390543). Norway study was supported by Norwegian Cancer Society, Norwegian Research Council The Shanghai Cohort Study (SCS) was supported by National Institutes of Health R01 CA144034 (PI: Yuan) and UM1 CA182876 (PI: Yuan). The Singapore Chinese Health Study (SCHS) was supported by National Institutes of Health R01 CA144034 (PI: Yuan) and UM1 CA182876 (PI: Yuan). The work in TLC study has been supported in part the James & Esther King Biomedical Research Program (09KN-15), National Institutes of Health Specialized Programs of Research Excellence (SPORE) Grant (P50 CA119997), and by a Cancer Center Support Grant (CCSG) at the H. Lee Moffitt Cancer Center and Research Institute, an NCI designated Comprehensive Cancer Center (grant number P30-CA76292) The Vanderbilt Lung Cancer Study – BioVU dataset used for the analyses described was obtained from Vanderbilt University Medical Center’s BioVU, which is supported by institutional funding, the 1S10RR025141-01 instrumentation award, and by the Vanderbilt CTSA grant UL1TR000445 from NCATS/NIH. Dr. Aldrich was supported by NIH/National Cancer Institute K07CA172294 (PI: Aldrich) and Dr. Bush was supported by NHGRI/NIH U01HG004798 (PI: Crawford). The Copenhagen General Population Study (CGPS) was supported by the Chief Physician Johan Boserup and Lise Boserup Fund, the Danish Medical Research Council and Herlev Hospital. The NELCS study: Grant Number P20RR018787 from the National Center for Research Resources (NCRR), a component of the National Institutes of Health (NIH). The MDACC study was supported in part by grants from the NIH (P50 CA070907, R01 CA176568) (to X. Wu), Cancer Prevention & Research Institute of Texas (RP130502) (to X. Wu), and The University of Texas MD Anderson Cancer Center institutional support for the Center for Translational and Public Health Genomics. The study in Lodz center was partially funded by Nofer Institute of Occupational Medicine, under task NIOM 10.13: Predictors of mortality from non-small cell lung cancer - field study. Kentucky Lung Cancer Research Initiative was supported by the Department of Defense [Congressionally Directed Medical Research Program, U.S. Army Medical Research and Materiel Command Program] under award number: 10153006 (W81XWH-11-1-0781). Views and opinions of, and endorsements by the author(s) do not reflect those of the US Army or the Department of Defense. This research was also supported by unrestricted infrastructure funds from the UK Center for Clinical and Translational Science, NIH grant UL1TR000117 and Markey Cancer Center NCI Cancer Center Support Grant (P30 CA177558) Shared Resource Facilities: Cancer Research Informatics, Biospecimen and Tissue Procurement, and Biostatistics and Bioinformatics. The Resource for the Study of Lung Cancer Epidemiology in North Trent (ReSoLuCENT) study was funded by the Sheffield Hospitals Charity, Sheffield Experimental Cancer Medicine Centre and Weston Park Hospital Cancer Charity. FT was supported by a clinical PhD fellowship funded by the Yorkshire Cancer Research/Cancer Research UK Sheffield Cancer Centre. The authors would like to thank the staff at the Respiratory Health Network Tissue Bank of the FRQS for their valuable assistance with the lung eQTL dataset at Laval University. The lung eQTL study at Laval University was supported by the Fondation de l’Institut universitaire de cardiologie et de pneumologie de Québec, the Respiratory Health Network of the FRQS, the Canadian Institutes of Health Research (MOP - 123369). Y.B. holds a Canada Research Chair in Genomics of Heart and Lung Diseases. The research undertaken by M.D.T., L.V.W. and M.S.A. was partly funded by the National Institute for Health Research (NIHR). The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR or the Department of Health. M.D.T. holds a Medical Research Council Senior Clinical Fellowship (G0902313).
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Affiliation(s)
- Xuemei Ji
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, 03750, NH, USA
| | - Yohan Bossé
- Department of Molecular Medicine, Laval University, Québec, G1V 4G5, Canada
- Institut universitaire de cardiologie et de pneumologie de Québec, Québec, G1V 4G5, Canada
| | - Maria Teresa Landi
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, 20892, MD, USA
| | - Jiang Gui
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, 03750, NH, USA
| | - Xiangjun Xiao
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, 03750, NH, USA
| | - David Qian
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, 03750, NH, USA
| | - Philippe Joubert
- Institut universitaire de cardiologie et de pneumologie de Québec, Québec, G1V 4G5, Canada
| | - Maxime Lamontagne
- Institut universitaire de cardiologie et de pneumologie de Québec, Québec, G1V 4G5, Canada
| | - Yafang Li
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, 03750, NH, USA
| | - Ivan Gorlov
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, 03750, NH, USA
| | - Mariella de Biasi
- Annenberg School of Communication, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, 19104, PA, USA
| | - Younghun Han
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, 03750, NH, USA
| | - Olga Gorlova
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, 03750, NH, USA
| | - Rayjean J Hung
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System and University of Toronto, Toronto, M5T 3L9, Canada
| | - Xifeng Wu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, 77030, TX, USA
| | - James McKay
- International Agency for Research on Cancer, World Health Organization, Lyon, 69372 CEDEX 08, France
| | - Xuchen Zong
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System and University of Toronto, Toronto, M5T 3L9, Canada
| | - Robert Carreras-Torres
- International Agency for Research on Cancer, World Health Organization, Lyon, 69372 CEDEX 08, France
| | - David C Christiani
- Department of Environmental Health, Harvard School of Public Health, Boston, 02115, MA, USA
- Department of Medicine, Massachusetts General Hospital, Boston, 02115, MA, USA
| | - Neil Caporaso
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, 20892, MD, USA
| | - Mattias Johansson
- International Agency for Research on Cancer, World Health Organization, Lyon, 69372 CEDEX 08, France
| | - Geoffrey Liu
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System and University of Toronto, Toronto, M5T 3L9, Canada
| | - Stig E Bojesen
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Herlev 2730, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200 København N, Denmark
- Copenhagen General Population Study, Herlev and Gentofte Hospital, Ringvej 75, Copenhagen, Herlev 2730, Denmark
| | - Loic Le Marchand
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, 96813, HI, USA
| | - Demetrios Albanes
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, 20892, MD, USA
| | - Heike Bickeböller
- Department of Genetic Epidemiology, University Medical Center, Georg-August-University Göttingen, Göttingen, 37073, Germany
| | - Melinda C Aldrich
- Department of Thoracic Surgery, Division of Epidemiology, Vanderbilt University Medical Center, Nashville, 37203, TN, USA
| | - William S Bush
- Department of Thoracic Surgery, Division of Epidemiology, Vanderbilt University Medical Center, Nashville, 37203, TN, USA
- Department of Epidemiology and Biostatistics, School of Medicine, Case Western Reserve University, Cleveland, 44106, OH, USA
| | - Adonina Tardon
- Faculty of Medicine, University of Oviedo, Oviedo, 33006, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública, Campus del Cristo s/n, Oviedo, 33006, Spain
| | - Gad Rennert
- Clalit National Cancer Control Center, Carmel Medical Center, Haifa, 34361, Israel
- Faculty of Medicine, Technion, Haifa, 34361, Israel
| | - Chu Chen
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, 98109, WA, USA
| | - M Dawn Teare
- School of Health and Related Research, University of Sheffield, Sheffield, S1 4DA, UK
| | - John K Field
- Roy Castle Lung Cancer Research Programme, Institute of Translational Medicine, University of Liverpool, Liverpool, L69 3BX, UK
| | - Lambertus A Kiemeney
- Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, 6525 EZ, The Netherlands
| | - Philip Lazarus
- Department of Pharmaceutical Sciences, College of Pharmacy, Washington State University, Spokane, 99210-1495, WA, USA
| | - Aage Haugen
- National Institute of Occupational Health, 0033, Gydas vei 8, 0033, Oslo, Norway
| | - Stephen Lam
- British Columbia Cancer Agency, 675 West 10th Avenue, Vancouver, V5Z1L3, Canada
| | - Matthew B Schabath
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, 33612, FL, USA
| | - Angeline S Andrew
- Department of Epidemiology, Geisel School of Medicine, 1 Medical Center Drive, Hanover, 03755, NH, USA
| | - Hongbing Shen
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, 101 Longmian Ave, Nanjing, 211166, PR China
| | - Yun-Chul Hong
- Department of Preventive Medicine, Seoul National University College of Medicine, 1 Gwanak-ro, Gwanak-gu, Seoul, 151 742, Republic of Korea
| | - Jian-Min Yuan
- University of Pittsburgh Cancer Institute, Pittsburgh, 15232, PA, USA
| | - Pier A Bertazzi
- Department of Preventive Medicine, IRCCS Foundation Ca'Granda Ospedale Maggiore Policlinico, Milan, 20133, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, 20133, Italy
| | - Angela C Pesatori
- Department of Preventive Medicine, IRCCS Foundation Ca'Granda Ospedale Maggiore Policlinico, Milan, 20133, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, 20133, Italy
| | - Yuanqing Ye
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, 77030, TX, USA
| | - Nancy Diao
- Department of Environmental Health, Harvard School of Public Health, Boston, 02115, MA, USA
| | - Li Su
- Department of Environmental Health, Harvard School of Public Health, Boston, 02115, MA, USA
| | - Ruyang Zhang
- Department of Environmental Health, Harvard School of Public Health, Boston, 02115, MA, USA
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, 101 Longmian Ave, Nanjing, 211166, PR China
| | - Yonathan Brhane
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System and University of Toronto, Toronto, M5T 3L9, Canada
| | - Natasha Leighl
- University Health Network-The Princess Margaret Cancer Centre, 600 University Avenue, Toronto, M5G 2C4, Canada
| | - Jakob S Johansen
- Department of Oncology, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, 2730, Denmark
| | - Anders Mellemgaard
- Department of Oncology, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, 2730, Denmark
| | - Walid Saliba
- Clalit National Cancer Control Center, Carmel Medical Center, Haifa, 34361, Israel
- Faculty of Medicine, Technion, Haifa, 34361, Israel
| | - Christopher Haiman
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, 90033, CA, USA
| | - Lynne Wilkens
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, 96813, HI, USA
| | - Ana Fernandez-Somoano
- Faculty of Medicine, University of Oviedo, Oviedo, 33006, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública, Campus del Cristo s/n, Oviedo, 33006, Spain
| | - Guillermo Fernandez-Tardon
- Faculty of Medicine, University of Oviedo, Oviedo, 33006, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública, Campus del Cristo s/n, Oviedo, 33006, Spain
| | - Erik H F M van der Heijden
- Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, 6525 EZ, The Netherlands
| | - Jin Hee Kim
- Department of Integrative Bioscience & Biotechnology, Sejong University, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Juncheng Dai
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, 101 Longmian Ave, Nanjing, 211166, PR China
| | - Zhibin Hu
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, 101 Longmian Ave, Nanjing, 211166, PR China
| | - Michael P A Davies
- Roy Castle Lung Cancer Research Programme, Institute of Translational Medicine, University of Liverpool, Liverpool, L69 3BX, UK
| | - Michael W Marcus
- Roy Castle Lung Cancer Research Programme, Institute of Translational Medicine, University of Liverpool, Liverpool, L69 3BX, UK
| | - Hans Brunnström
- Department of Pathology, Lund University, Lund, 222 41, Sweden
| | - Jonas Manjer
- Faculty of Medicine, Lund University, Lund, 22100, Sweden
| | - Olle Melander
- Faculty of Medicine, Lund University, Lund, 22100, Sweden
| | - David C Muller
- School of Public Health, St Mary's Campus, Imperial College London, London, W2 1PG, UK
| | - Kim Overvad
- Faculty of Medicine, Lund University, Lund, 22100, Sweden
| | | | - Rosario Tumino
- Cancer Registry and Histopathology Department, "Civic-M.P. Arezzo" Hospital, ASP, Ragusa, 97100, Italy
| | - Jennifer Doherty
- Department of Epidemiology, Geisel School of Medicine, 1 Medical Center Drive, Hanover, 03755, NH, USA
- Fred Hutchinson Cancer Research Center, Seattle, 98109-1024, WA, USA
| | - Gary E Goodman
- Fred Hutchinson Cancer Research Center, Seattle, 98109-1024, WA, USA
- Swedish Medical Group, Arnold Pavilion, Suite 200, Seattle, 98104, WA, USA
| | - Angela Cox
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, S10 2RX, UK
| | - Fiona Taylor
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, S10 2RX, UK
| | - Penella Woll
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, S10 2RX, UK
| | - Irene Brüske
- Research Unit of Molecular Epidemiology, Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, D-85764, Germany
| | - Judith Manz
- Research Unit of Molecular Epidemiology, Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, D-85764, Germany
| | - Thomas Muley
- Thoraxklinik at University Hospital Heidelberg, Heidelberg, 69126, Germany
- Translational Lung Research Center Heidelberg (TLRC-H), Heidelberg, 69120, Germany
| | - Angela Risch
- Cancer Cluster Salzburg, University of Salzburg, Salzburg, 5020, Austria
| | - Albert Rosenberger
- Department of Genetic Epidemiology, University Medical Center, Georg-August-University Göttingen, Göttingen, 37073, Germany
| | - Kjell Grankvist
- Department of Medical Biosciences, Umeå University, Umeå, 901 85, Sweden
| | - Mikael Johansson
- Department of Radiation Sciences, Umeå University, Umeå, 901 85, Sweden
| | | | | | - Susanne M Arnold
- Markey Cancer Center, University of Kentucky, First Floor, 800 Rose Street, Lexington, 40508, KY, USA
| | - Eric B Haura
- Department of Thoracic Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, 33612, KY, USA
| | - Ciprian Bolca
- Institute of Pneumology "Marius Nasta", Bucharest, RO-050159, Romania
| | - Ivana Holcatova
- 1st Faculty of Medicine, Charles University, Kateřinská 32, Prague, 121 08 Praha 2, Czech Republic
| | - Vladimir Janout
- 1st Faculty of Medicine, Charles University, Kateřinská 32, Prague, 121 08 Praha 2, Czech Republic
| | - Milica Kontic
- Clinical Center of Serbia, Clinic for Pulmonology, School of Medicine, University of Belgrade, Belgrade, 11000, Serbia
| | - Jolanta Lissowska
- Department of Cancer Epidemiology and Prevention, M. Sklodowska-Curie Institute-Oncology Center, Warsaw, 02-781, Poland
| | - Anush Mukeria
- Department of Epidemiology and Prevention, Russian N.N. Blokhin Cancer Research Centre, Moscow, 115478, Russian Federation
| | - Simona Ognjanovic
- International Organization for Cancer Prevention and Research, Belgrade, 11070, Serbia
| | - Tadeusz M Orlowski
- Department of Surgery, National Tuberculosis and Lung Diseases Research Institute, Warsaw, PL-01-138, Poland
| | - Ghislaine Scelo
- International Agency for Research on Cancer, World Health Organization, Lyon, 69372 CEDEX 08, France
| | - Beata Swiatkowska
- Department of Environmental Epidemiology, Nofer Institute of Occupational Medicine, Lodz, 91-348, Poland
| | - David Zaridze
- Department of Epidemiology and Prevention, Russian N.N. Blokhin Cancer Research Centre, Moscow, 115478, Russian Federation
| | - Per Bakke
- Department of Clinical Science, University of Bergen, Bergen, 5021, Norway
| | - Vidar Skaug
- National Institute of Occupational Health, 0033, Gydas vei 8, 0033, Oslo, Norway
| | - Shanbeh Zienolddiny
- National Institute of Occupational Health, 0033, Gydas vei 8, 0033, Oslo, Norway
| | - Eric J Duell
- Unit of Nutrition and Cancer, Catalan Institute of Oncology (ICO-IDIBELL), Barcelona, 08908, Spain
| | - Lesley M Butler
- University of Pittsburgh Cancer Institute, Pittsburgh, 15232, PA, USA
| | - Woon-Puay Koh
- Duke-NUS Medical School, Singapore, 119077, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, 117549, Singapore
| | - Yu-Tang Gao
- Department of Epidemiology, Shanghai Cancer Institute, Shanghai, 2200, China
| | | | | | | | - David C Nickle
- Department of Genetics and Pharmacogenomics, Merck Research Laboratories, Boston, 02115-5727, MA, USA
| | - Ma'en Obeidat
- Centre for Heart Lung Innovation, St Paul's Hospital, The University of British Columbia, Vancouver, V6Z 1Y6, BC, Canada
| | - Wim Timens
- Department of Pathology and Medical Biology, GRIAC, University of Groningen, University Medical Center Groningen, Groningen, NL - 9713 GZ, The Netherlands
| | - Bin Zhu
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, 20892, MD, USA
| | - Lei Song
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, 20892, MD, USA
| | - María Soler Artigas
- Genetic Epidemiology Group, Department of Health Sciences, University of Leicester, Leicester, LE1 7RH, UK
- Leicester Respiratory Biomedical Research Unit, National Institute for Health Research (NIHR), Glenfield Hospital, Leicester, LE3 9QP, UK
| | - Martin D Tobin
- Genetic Epidemiology Group, Department of Health Sciences, University of Leicester, Leicester, LE1 7RH, UK
- Leicester Respiratory Biomedical Research Unit, National Institute for Health Research (NIHR), Glenfield Hospital, Leicester, LE3 9QP, UK
| | - Louise V Wain
- Genetic Epidemiology Group, Department of Health Sciences, University of Leicester, Leicester, LE1 7RH, UK
- Leicester Respiratory Biomedical Research Unit, National Institute for Health Research (NIHR), Glenfield Hospital, Leicester, LE3 9QP, UK
| | - Fangyi Gu
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, 20892, MD, USA
| | - Jinyoung Byun
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, 03750, NH, USA
| | - Ahsan Kamal
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, 03750, NH, USA
| | - Dakai Zhu
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, 03750, NH, USA
| | - Rachel F Tyndale
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, M5S 1A8, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, M5T 1R8, ON, Canada
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, M6J 1H4, ON, Canada
| | - Wei-Qi Wei
- Department of Biomedical Informatics, School of Medicine, Vanderbilt University, Nashville, TN, 37235, USA
| | - Stephen Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, 20892, MD, USA
| | - Paul Brennan
- International Agency for Research on Cancer, World Health Organization, Lyon, 69372 CEDEX 08, France
| | - Christopher I Amos
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, 03750, NH, USA.
- The Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, 77030, TX, USA.
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Nedeljkovic I, Carnero-Montoro E, Lahousse L, van der Plaat DA, de Jong K, Vonk JM, van Diemen CC, Faiz A, van den Berge M, Obeidat M, Bossé Y, Nickle DC, Consortium B, Uitterlinden AG, van Meurs JJB, Stricker BCH, Brusselle GG, Postma DS, Boezen HM, van Duijn CM, Amin N. Understanding the role of the chromosome 15q25.1 in COPD through epigenetics and transcriptomics. Eur J Hum Genet 2018; 26:709-722. [PMID: 29422661 PMCID: PMC5945654 DOI: 10.1038/s41431-017-0089-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 11/06/2017] [Accepted: 12/19/2017] [Indexed: 12/25/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a major health burden in adults and cigarette smoking is considered the most important environmental risk factor of COPD. Chromosome 15q25.1 locus is associated with both COPD and smoking. Our study aims at understanding the mechanism underlying the association of chromosome 15q25.1 with COPD through epigenetic and transcriptional variation in a population-based setting. To assess if COPD-associated variants in 15q25.1 are methylation quantitative trait loci, epigenome-wide association analysis of four genetic variants, previously associated with COPD (P < 5 × 10-8) in the 15q25.1 locus (rs12914385:C>T-CHRNA3, rs8034191:T>C-HYKK, rs13180:C>T-IREB2 and rs8042238:C>T-IREB2), was performed in the Rotterdam study (n = 1489). All four variants were significantly associated (P < 1.4 × 10-6) with blood DNA methylation of IREB2, CHRNA3 and PSMA4, of which two, including IREB2 and PSMA4, were also differentially methylated in COPD cases and controls (P < 0.04). Further additive and multiplicative effects of smoking were evaluated and no significant effect was observed. To evaluate if these four genetic variants are expression quantitative trait loci, transcriptome-wide association analysis was performed in 1087 lung samples. All four variants were also significantly associated with differential expression of the IREB2 3'UTR in lung tissues (P < 5.4 × 10-95). We conclude that regulatory mechanisms affecting the expression of IREB2 gene, such as DNA methylation, may explain the association between genetic variants in chromosome 15q25.1 and COPD, largely independent of smoking.
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Affiliation(s)
- Ivana Nedeljkovic
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Elena Carnero-Montoro
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands
- Pfizer University of Granada, GENYO Centre for Genomics and Oncological Research, Andalusian Region Government, Granada, Spain
| | - Lies Lahousse
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
- Department of Bioanalysis Pharmaceutical Care Unit, Ghent University Hospital, Ghent, Belgium
| | - Diana A van der Plaat
- Department of Epidemiology University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands
| | - Kim de Jong
- Department of Epidemiology University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands
| | - Judith M Vonk
- Department of Epidemiology University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands
| | - Cleo C van Diemen
- Department of Epidemiology University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
- Department of Genetics, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - Alen Faiz
- Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands
| | - Maarten van den Berge
- Department of Pulmonology University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - Ma'en Obeidat
- Centre for Heart Lung Innovation, University of British Columbia, Vancouver, BC, Canada
| | - Yohan Bossé
- Department of Molecular Medicine, Laval University, Institut universitaire de cardiologie et de pneumologie de Québec, Quebec, QC, Canada
| | - David C Nickle
- Genetics and Pharmacogenomics (GpGx), Merck Research Laboratories, Seattle, WA, USA
| | | | - Andre G Uitterlinden
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands
- Department of Internal Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Joyce J B van Meurs
- Department of Internal Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Bruno C H Stricker
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Guy G Brusselle
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands
- Department of Bioanalysis Pharmaceutical Care Unit, Ghent University Hospital, Ghent, Belgium
- Department of Respiratory Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Dirkje S Postma
- Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands
- Department of Pulmonology University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - H Marike Boezen
- Department of Epidemiology University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University of Groningen, Groningen, The Netherlands
| | | | - Najaf Amin
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands.
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14
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Huang LC, Lin CL, Qiu JZ, Lin CY, Hsu KW, Tam KW, Lee JY, Yang JM, Lee CH. Nicotinic Acetylcholine Receptor Subtype Alpha-9 Mediates Triple-Negative Breast Cancers Based on a Spontaneous Pulmonary Metastasis Mouse Model. Front Cell Neurosci 2017; 11:336. [PMID: 29163048 PMCID: PMC5675882 DOI: 10.3389/fncel.2017.00336] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 10/12/2017] [Indexed: 01/03/2023] Open
Abstract
Triple-negative breast cancer (TNBC) subtype is associated with poor prognosis and a high risk of recurrence-related death in women. Despite the aggressiveness of TNBCs, targeted TNBC therapy is not yet available in the clinic. To overcome this challenge, we generated highly metastatic TNBC cells (LM) derived from metastasized lung cells via a serial spontaneous pulmonary metastasis animal model to identify targetable molecules for attenuating the progression of TNBC metastasis. Gene analysis of primary tumor (P), first-round (1LM) and second-round (2LM) metastasized lung cells revealed that mesenchymal-related genes were significantly expressed in LM cells, especially in 2LM cells. Interestingly, α9-nAChR gene expression was also dramatically induced in LM cells, confirming our previous finding that α9-nAChR plays important roles in receptor-mediated carcinogenic signals in human breast cancer development. Using α9-nAChR as a biomarker, we transfected 2LM cells with CRISPR/Cas9 lentivirus targeting the α9-nAChR genomic region (2LM-α9-nAChR-null), showing that mesenchymal markers and the migration and invasion abilities of 2LM cells were significantly attenuated in 2LM-α9-nAChR-null cells both in vitro and in vivo. In addition, the high efficiency of editing the α9-nAChR gene using a CRISPR/Cas9 lentivirus was demonstrated by gene sequencing, genomic indel frequency and protein expression analyses. Collectively, these results confirmed those of our previous study that advanced-stage breast tumors are associated with substantially higher levels of α9-nAChR gene expression, indicating that α9-nAChR expression is essential for mediating TNBC metastasis during cancer development and may potentially act as a biomarker for targeted therapy in clinical investigations.
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Affiliation(s)
- Li-Chi Huang
- Department of Endocrinology, Cathay General Hospital, Taipei, Taiwan
| | - Ching-Ling Lin
- Department of Endocrinology, Cathay General Hospital, Taipei, Taiwan
| | - Jia-Zheng Qiu
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chun-Yu Lin
- Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu, Taiwan
| | - Kai-Wen Hsu
- Research Center for Tumor Medical Science, China Medical University, Taichung, Taiwan
| | - Ka-Wai Tam
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of General Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jung-Yu Lee
- Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu, Taiwan
| | - Jinn-Moon Yang
- Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu, Taiwan.,Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan
| | - Chia-Hwa Lee
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Department of Laboratory Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Comprehensive Cancer Center of Taipei Medical University, Taipei, Taiwan
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15
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Expression patterns for nicotinic acetylcholine receptor subunit genes in smoking-related lung cancers. Oncotarget 2017; 8:67878-67890. [PMID: 28978081 PMCID: PMC5620221 DOI: 10.18632/oncotarget.18948] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 06/17/2017] [Indexed: 01/03/2023] Open
Abstract
Cigarette smoking is associated with increased risk for all histologic types of lung cancer, but why the strength of this association is stronger for squamous cell carcinoma than adenocarcinoma of the lung (SQC-L, ADC-L) is not fully understood. Because nicotine and tobacco-specific nitrosamines contribute to carcinogenesis by activating nicotinic acetylcholine receptors (nAChRs) on lung tumors and epithelial cells, we investigated whether differential expression of nAChR subtypes in these tumors could explain their different association with smoking. Expression of nAChR subunit genes in paired tumor and non-tumor lung specimens from 40 SQC-L and 38 ADC-L patients was analyzed by quantitative PCR. Compared to normal lung, both tumors share: i) transcriptional dysregulation of CHRNA3/CHRNA5/CHRNB4 (α3, α5, β4 subunits) at the chromosomal locus that predisposes to lung cancer; and ii) decreased expression of CHRFAM7A (dupα7 subunit); this last subunit negatively modulates α7-nAChR activity in oocytes. In contrast, CHRNA7 (α7 subunit) expression was increased in SQC-L, particularly in smokers and non-survivors, while CHRNA4 (α4 subunit) expression was decreased in ADC-L. Thus, over-representation of cancer-stimulating α7-nAChR in SQC-L, also potentiated by smoking, and under-representation of cancer-inhibiting α4β2-nAChR in ADC-L could explain the different tobacco influences on the tumorigenic process in each cancer type.
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16
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Nicotine facilitates VSMC dysfunction through a miR-200b/RhoGDIA/cytoskeleton module. Sci Rep 2017; 7:43798. [PMID: 28252009 PMCID: PMC5333142 DOI: 10.1038/srep43798] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 01/30/2017] [Indexed: 12/27/2022] Open
Abstract
Nicotine can induce the abnormal migration and proliferation of vascular smooth muscle cells (VSMCs). We have previously shown that cytoskeletal proteins and RhoGDIA, a negative regulator of the Rho GTPase pathway, are involved in the nicotine-induced dysfunction of VSMCs. Here, we found that nicotine can activate the Rho GTPase pathway and induce the synthesis of the cytoskeletal proteins in VSMCs through the activation of intracellular downstream signaling pathways, including targets such as MYPT1, PAK1 and PI3K/AKT. Upon nicotine treatment, the mRNA level of RhoGDIA is increased but protein level is decreased both in vitro and in vivo, which suggested a mechanism of post-translational regulation. By the dual luciferase reporter assay, we identified the microRNA-200b (miR-200b) as a modulator of the behavioural changes of VSMCs in response to nicotine through targeting RhoGDIA directly. Introducing miR-200b inhibitors into cultured VSMCs significantly attenuated cell proliferation and migration. Additionally, we found that hypomethylation in the CpG island shore region of miR-200b was responsible for the nicotine-induced miR-200b up-regulation in VSMCs. The study demonstrates that nicotine facilitates VSMC dysfunction through a miR-200b/RhoGDIA/cytoskeleton module through the hypomethylation of miR-200b promoter and suggests that epigenetic modifications may play an important role in the pathological progression.
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17
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Chianello Nicolau M, Pinto LFR, Nicolau-Neto P, de Pinho PRA, Rossini A, de Almeida Simão T, Soares Lima SC. Nicotinic cholinergic receptors in esophagus: Early alteration during carcinogenesis and prognostic value. World J Gastroenterol 2016; 22:7146-7156. [PMID: 27610024 PMCID: PMC4988301 DOI: 10.3748/wjg.v22.i31.7146] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 04/15/2016] [Accepted: 05/04/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To compare expression of nicotinic cholinergic receptors (CHRNs) in healthy and squamous cell carcinoma-affected esophagus and determine the prognostic value.
METHODS: We performed RT-qPCR to measure the expression of CHRNs in 44 esophageal samples from healthy individuals and in matched normal surrounding mucosa, and in tumors from 28 patients diagnosed with esophageal squamous cell carcinoma (ESCC). Next, we performed correlation analysis for the detected expression of these receptors with the habits and clinico-pathological characteristics of all study participants. In order to investigate the possible correlations between the expression of the different CHRN subunits in both healthy esophagus and tissues from ESCC patients, correlation matrices were generated. Subsequently, we evaluated whether the detected alterations in expression of the various CHRNs could precede histopathological modifications during the esophageal carcinogenic processes by using receiver operating characteristic curve analysis. Finally, we evaluated the impact of CHRNA5 and CHRNA7 expression on overall survival by using multivariate analysis.
RESULTS: CHRNA3, CHRNA5, CHRNA7 and CHRNB4, but not CHRNA1, CHRNA4, CHRNA9 or CHRNA10, were found to be expressed in normal (healthy) esophageal mucosa. In ESCC, CHRNA5 and CHRNA7 were overexpressed as compared with patient-matched surrounding non-tumor mucosa (ESCC-adjacent mucosa; P < 0.0001 and P = 0.0091, respectively). Positive correlations were observed between CHRNA3 and CHRNB4 expression in all samples analyzed. Additionally, CHRNB4 was found to be differentially expressed in the healthy esophagus and the normal-appearing ESCC-adjacent mucosa, allowing for distinguishment between these tissues with a sensitivity of 75.86% and a specificity of 78.95% (P = 0.0002). Finally, CHRNA5 expression was identified as an independent prognostic factor in ESCC; patients with high CHRNA5 expression showed an increased overall survival, in comparison with those with low expression. The corresponding age- and tumor stage-adjusted hazard ratio was 0.2684 (95%CI: 0.075-0.97, P = 0.0448).
CONCLUSION: Expression of CHRNs is homogeneous along healthy esophagus and deregulated in ESCC, suggesting a pathogenic role for these receptors in ESCC development and progression.
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18
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Dang N, Meng X, Song H. Nicotinic acetylcholine receptors and cancer. Biomed Rep 2016; 4:515-518. [PMID: 27123240 PMCID: PMC4840641 DOI: 10.3892/br.2016.625] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 03/01/2016] [Indexed: 12/14/2022] Open
Abstract
Nicotine, the primary addictive constituent of cigarettes, is believed to contribute to cancer promotion and progression through the activation of nicotinic acetylcholine receptors (nAChRs), which are membrane ligand-gated cation channels. nAChRs activation can be triggered by the neurotransmitter Ach, or certain other biological compounds, such as nicotine. In recent years, genome-wide association studies have indicated that allelic variation in the α5-α3-β4 nAChR cluster on chromosome 15q24-15q25.1 is associated with lung cancer risk. The role of nAChRs in other types of cancer has also been reported. The present review highlights the role of nAChRs in types of human cancer.
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Affiliation(s)
- Ningning Dang
- Department of Dermatology, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong 250013, P.R. China
| | - Xianguang Meng
- Department of Dermatology, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong 250013, P.R. China
| | - Haiyan Song
- Department of Dermatology, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong 250013, P.R. China
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19
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Zhao Y. The Oncogenic Functions of Nicotinic Acetylcholine Receptors. JOURNAL OF ONCOLOGY 2016; 2016:9650481. [PMID: 26981122 PMCID: PMC4769750 DOI: 10.1155/2016/9650481] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 11/05/2015] [Accepted: 11/16/2015] [Indexed: 11/18/2022]
Abstract
Nicotinic acetylcholine receptors (nAChRs) are ion channels that are expressed in the cell membrane of all mammalian cells, including cancer cells. Recent findings suggest that nAChRs not only mediate nicotine addiction in the brain but also contribute to the development and progression of cancers directly induced by nicotine and its derived carcinogenic nitrosamines whereas deregulation of the nAChRs is observed in many cancers, and genome-wide association studies (GWAS) indicate that SNPs nAChRs associate with risks of lung cancers and nicotine addiction. Emerging evidences suggest nAChRs are posited at the central regulatory loops of numerous cell growth and prosurvival signal pathways and also mediate the synthesis and release of stimulatory and inhibitory neurotransmitters induced by their agonists. Thus nAChRs mediated cell signaling plays an important role in stimulating the growth and angiogenic and neurogenic factors and mediating oncogenic signal transduction during cancer development in a cell type specific manner. In this review, we provide an integrated view of nAChRs signaling in cancer, heightening on the oncogenic properties of nAChRs that may be targeted for cancer treatment.
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Affiliation(s)
- Yue Zhao
- Center of Cell biology and Cancer Research, Albany Medical College, 47 New Scotland Avenue, Albany, NY 12208, USA
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20
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Qu X, Wang K, Dong W, Shen H, Wang Y, Liu Q, Du J. Association between two CHRNA3 variants and susceptibility of lung cancer: a meta-analysis. Sci Rep 2016; 6:20149. [PMID: 26831765 PMCID: PMC4735583 DOI: 10.1038/srep20149] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 12/30/2015] [Indexed: 02/07/2023] Open
Abstract
Genome-wide association studies (GWAS) have identified two CHRNA3 polymorphisms (rs578776 and rs938682) associated with lung cancer risk. Furthermore, these polymorphisms were investigated and genotyped by PCR analysis. All eligible case-control studies published up to Mar 1st 2015 were identified by searching Pubmed and Embase database. Negative association between rs578776-T allele and risk of lung cancer was obtained without obvious heterogeneity (OR: 0.83, 95% CI: 0.79-0.86; p = 0.898 for Q test). Rs938682-C allele carriers had a 12% to 28% decreased risk. Genotype model analysis showed results of dominant model for rs578776 (OR with 95% CI: 0.839(0.718-0.981)), dominant model for rs938682 (OR with 95% CI: 0.778(0.663-0.912)) and homozygous model for rs938682 (OR with 95% CI: 0.767(0.708-0.831)) were statistically significant. Subgroup analysis indicated rs578776-T variant had protective effect in Smokers, Caucasians, two histology subgroups, and two match subgroups. Meanwhile, rs938682-C allele was associated with decreased risk in Smokers, Caucasians, Lung cancer, and two match subgroups. Meta-regression suggested ethnicity might be the major source of heterogeneity in allele model and homozygous model for rs938682. Moreover, smoking status might contribute to part of heterogeneity under allele model. In summary, this meta-analysis suggested both rs578776 and rs938682 were significantly associated with the susceptibility of lung cancer.
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Affiliation(s)
- Xiao Qu
- Institute of Oncology, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University, 324 Jingwu Road, Jinan, 250021 P.R. China
| | - Kai Wang
- Institute of Oncology, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University, 324 Jingwu Road, Jinan, 250021 P.R. China
| | - Wei Dong
- Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University, 324 Jingwu Road, Jinan, 250021 P.R. China
| | - Hongchang Shen
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University, 324 Jingwu Road, Jinan, 250021 P.R. China
| | - Ying Wang
- Institute of Oncology, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University, 324 Jingwu Road, Jinan, 250021 P.R. China
| | - Qi Liu
- Institute of Oncology, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University, 324 Jingwu Road, Jinan, 250021 P.R. China
| | - Jiajun Du
- Institute of Oncology, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University, 324 Jingwu Road, Jinan, 250021 P.R. China
- Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University, 324 Jingwu Road, Jinan, 250021 P.R. China
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21
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Hancock DB, Wang JC, Gaddis NC, Levy JL, Saccone NL, Stitzel JA, Goate A, Bierut LJ, Johnson EO. A multiancestry study identifies novel genetic associations with CHRNA5 methylation in human brain and risk of nicotine dependence. Hum Mol Genet 2015. [PMID: 26220977 DOI: 10.1093/hmg/ddv303] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Nicotine dependence is influenced by chromosome 15q25.1 single nucleotide polymorphisms (SNPs), including the missense SNP rs16969968 that alters function of the α5 nicotinic acetylcholine receptor (CHRNA5) and noncoding SNPs that regulate CHRNA5 mRNA expression. We tested for cis-methylation quantitative trait loci (cis-meQTLs) using SNP genotypes and DNA methylation levels measured across the IREB2-HYKK-PSMA4-CHRNA5-CHRNA3-CHRNB4 genes on chromosome 15q25.1 in the BrainCloud and Brain QTL cohorts [total N = 175 European-Americans and 65 African-Americans (AAs)]. We identified eight SNPs that were significantly associated with CHRNA5 methylation in prefrontal cortex: P ranging from 6.0 × 10(-10) to 5.6 × 10(-5). These SNP-methylation associations were also significant in frontal cortex, temporal cortex and pons: P ranging from 4.8 × 10(-12) to 3.4 × 10(-3). Of the eight cis-meQTL SNPs, only the intronic CHRNB4 SNP rs11636753 was associated with CHRNA5 methylation independently of the known SNP effects in prefrontal cortex, and it was the most significantly associated SNP with nicotine dependence across five independent cohorts (total N = 7858 European ancestry and 3238 AA participants): P = 6.7 × 10(-4), odds ratio (OR) [95% confidence interval (CI)] = 1.11 (1.05-1.18). The rs11636753 major allele (G) was associated with lower CHRNA5 DNA methylation, lower CHRNA5 mRNA expression and increased nicotine dependence risk. Haplotype analyses showed that rs11636753-G and the functional rs16969968-A alleles together increased risk of nicotine dependence more than each variant alone: P = 3.1 × 10(-12), OR (95% CI) = 1.32 (1.22-1.43). Our findings identify a novel regulatory SNP association with nicotine dependence and connect, for the first time, previously observed differences in CHRNA5 mRNA expression and nicotine dependence risk to underlying DNA methylation differences.
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Affiliation(s)
- Dana B Hancock
- Behavioral and Urban Health Program, Behavioral Health and Criminal Justice Division,
| | - Jen-Chyong Wang
- Department of Neuroscience and Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | | | | | | | - Jerry A Stitzel
- Department of Integrative Physiology, University of Colorado, Boulder, CO 80309, USA
| | - Alison Goate
- Department of Neuroscience and Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Laura J Bierut
- Department of Psychiatry, Washington University School of Medicine, St Louis, MO 63110, USA and
| | - Eric O Johnson
- Fellow Program and Behavioral Health and Criminal Justice Division, Research Triangle Institute (RTI) International, Research Triangle Park, NC 27709, USA
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22
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Shorey-Kendrick LE, Ford MM, Allen DC, Kuryatov A, Lindstrom J, Wilhelm L, Grant KA, Spindel ER. Nicotinic receptors in non-human primates: Analysis of genetic and functional conservation with humans. Neuropharmacology 2015; 96:263-73. [PMID: 25661700 PMCID: PMC4486519 DOI: 10.1016/j.neuropharm.2015.01.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 01/20/2015] [Accepted: 01/22/2015] [Indexed: 01/18/2023]
Abstract
Nicotinic acetylcholine receptors (nAChRs) are highly conserved between humans and non-human primates. Conservation exists at the level of genomic structure, protein structure and epigenetics. Overall homology of nAChRs at the protein level is 98% in macaques versus 89% in mice, which is highly relevant for evaluating subtype-specific ligands that have different affinities in humans versus rodents. In addition to conservation at the protein level, there is high conservation of genomic structure in terms of intron and exon size and placement of CpG sites that play a key role in epigenetic regulation. Analysis of single nucleotide polymorphisms (SNPs) shows that while the majority of SNPs are not conserved between humans and macaques, some functional polymorphisms are. Most significantly, cynomolgus monkeys express a similar α5 nAChR Asp398Asn polymorphism to the human α5 Asp398Asn polymorphism that has been linked to greater nicotine addiction and smoking related disease. Monkeys can be trained to readily self-administer nicotine, and in an initial study we have demonstrated that cynomolgus monkeys bearing the α5 D398N polymorphism show a reduced behavioral sensitivity to oral nicotine and tend to consume it in a different pattern when compared to wild-type monkeys. Thus the combination of highly homologous nAChR, higher cortical functions and capacity for complex training makes non-human primates a unique model to study in vivo functions of nicotinic receptors. In particular, primate studies on nicotine addiction and evaluation of therapies to prevent or overcome nicotine addiction are likely to be highly predictive of treatment outcomes in humans.
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Affiliation(s)
- Lyndsey E Shorey-Kendrick
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health &, Science University, Beaverton, OR 97006, USA.
| | - Matthew M Ford
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health &, Science University, Beaverton, OR 97006, USA.
| | - Daicia C Allen
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health &, Science University, Beaverton, OR 97006, USA.
| | - Alexander Kuryatov
- Department of Neuroscience, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Jon Lindstrom
- Department of Neuroscience, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Larry Wilhelm
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health &, Science University, Beaverton, OR 97006, USA.
| | - Kathleen A Grant
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health &, Science University, Beaverton, OR 97006, USA.
| | - Eliot R Spindel
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health &, Science University, Beaverton, OR 97006, USA.
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Lee HS, Barraza-Villarreal A, Biessy C, Duarte-Salles T, Sly PD, Ramakrishnan U, Rivera J, Herceg Z, Romieu I. Dietary supplementation with polyunsaturated fatty acid during pregnancy modulates DNA methylation at IGF2/H19 imprinted genes and growth of infants. Physiol Genomics 2014; 46:851-7. [PMID: 25293351 PMCID: PMC4254937 DOI: 10.1152/physiolgenomics.00061.2014] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 10/04/2014] [Indexed: 12/13/2022] Open
Abstract
Epigenetic regulation of imprinted genes is regarded as a highly plausible explanation for linking dietary exposures in early life with the onset of diseases during childhood and adulthood. We sought to test whether prenatal dietary supplementation with docosahexaenoic acid (DHA) during pregnancy may modulate epigenetic states at birth. This study was based on a randomized intervention trial conducted in Mexican pregnant women supplemented daily with 400 mg of DHA or a placebo from gestation week 18-22 to parturition. We applied quantitative profiling of DNA methylation states at IGF2 promoter 3 (IGF2 P3), IGF2 differentially methylated region (DMR), and H19 DMR in cord blood mononuclear cells of the DHA-supplemented group (n = 131) and the control group (n = 130). In stratified analyses, DNA methylation levels in IGF2 P3 were significantly higher in the DHA group than the control group in preterm infants (P = 0.04). We also observed a positive association between DNA methylation levels and maternal body mass index; IGF2 DMR methylation was higher in the DHA group than the control group in infants of overweight mothers (P = 0.03). In addition, at H19 DMR, methylation levels were significantly lower in the DHA group than the control group in infants of normal weight mothers (P = 0.01). Finally, methylation levels at IGF2/H19 imprinted regions were associated with maternal BMI. These findings suggest that epigenetic mechanisms may be modulated by DHA, with potential impacts on child growth and development.
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Affiliation(s)
- Ho-Sun Lee
- Epigenetics Group, International Agency for Research on Cancer (IARC), Lyon, France
| | | | | | | | - Peter D Sly
- Queensland Children's Medical Research Institute, Royal Children's Hospital, Herston, Queensland, Australia, and
| | - Usha Ramakrishnan
- Nutrition and Health Sciences and the Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Juan Rivera
- Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
| | - Zdenko Herceg
- Epigenetics Group, International Agency for Research on Cancer (IARC), Lyon, France
| | - Isabelle Romieu
- Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México, Nutrition and Health Sciences and the Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia
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Niu XM, Lu S. Acetylcholine receptor pathway in lung cancer: New twists to an old story. World J Clin Oncol 2014; 5:667-676. [PMID: 25302169 PMCID: PMC4129531 DOI: 10.5306/wjco.v5.i4.667] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2013] [Revised: 04/17/2014] [Accepted: 06/11/2014] [Indexed: 02/06/2023] Open
Abstract
Genome-wide association studies revealed that allelic variation in the α5-α3-β4 nicotine acetylcholine receptor (nAChR) cluster on chromosome 15q24-15q25.1 was associated with lung cancer risk. nAChRs are membrane ligand-gated cation channels whose activation is triggered by the binding of the endogenous neurotransmitter acetylcholine (ACh) or other biologic compounds including nicotine. nAChRs have been found on lung cancer cells, underscoring the idea that the non-neuronal nAChR pathway has important implications for lung cancer. Several studies focusing on the treatment with nAChR antagonists with improved selectivity might trigger novel strategies for the intervention and prevention of lung cancer. Here we review the genetic risk factors for lung cancer in the nAChR gene cluster, the roles of nicotine receptors, and the molecular mechanisms of acetylcholine receptor pathways to lead to more opportunities for intervention and prevention of lung cancer.
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Yoo SS, Lee SM, Do SK, Lee WK, Kim DS, Park JY. Unmethylation of the CHRNB4 gene is an unfavorable prognostic factor in non-small cell lung cancer. Lung Cancer 2014; 86:85-90. [PMID: 25172267 DOI: 10.1016/j.lungcan.2014.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 07/22/2014] [Accepted: 08/04/2014] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Lung cancer is the leading cause of cancer-related deaths and is currently a major health problem owing to difficulties in diagnosis at the early stage of the disease. Changes in DNA methylation status have now been identified as a critical component in the initiation of lung cancer, and the detection of DNA methylation is expected to be an important method for the early diagnosis of lung cancer. Nicotine, the principal tobacco alkaloid, directly contributes to lung carcinogenesis through the activation of nicotinic acetylcholine receptors (nAchRs). MATERIALS AND METHODS To investigate the role of the CHRNB4 gene, which encodes the nAchR β4 subunit that is ubiquitously expressed on lung epithelial cells, we analyzed its methylation status in 266 patients with non-small cell lung cancer (NSCLC) by using methylation-specific polymerase chain reaction and compared it with clinicopathological parameters. RESULTS AND CONCLUSION The frequency of CHRNB4 unmethylation was 13.5% and 8.3% in malignant and nonmalignant tissues, respectively. CHRNB4 demethylation was associated with upregulation of its mRNA expression and was more frequent in squamous cell carcinoma and pathological stages II-IIIA disease than in adenocarcinoma and pathological stage I disease, respectively (P=0.003 and P=0.01, respectively). Univariate and multivariate analyses showed that CHRNB4 unmethylation was significantly associated with unfavorable overall survival in the entire patient group as well as in men and ever-smokers. These results suggest that epigenetic regulation of CHRNB4 may affect tumor progression and survival in patients with NSCLC. Further investigation into the molecular basis of the role of CHRNB4 in the progression of NSCLC is warranted.
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Affiliation(s)
- Seung Soo Yoo
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu 702-422, Republic of Korea
| | - Su Man Lee
- Department of Anatomy and BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University, 2-101 Dongin-dong, Jung-gu, Daegu 702-422, Republic of Korea
| | - Sook Kyung Do
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu 702-422, Republic of Korea
| | - Won Kee Lee
- Department of Preventive Medicine, School of Medicine, Kyungpook National University, Daegu 702-422, Republic of Korea
| | - Dong Sun Kim
- Department of Anatomy and BK21 Plus KNU Biomedical Convergence Program, School of Medicine, Kyungpook National University, 2-101 Dongin-dong, Jung-gu, Daegu 702-422, Republic of Korea.
| | - Jae Yong Park
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu 702-422, Republic of Korea.
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Ghantous A, Saffery R, Cros MP, Ponsonby AL, Hirschfeld S, Kasten C, Dwyer T, Herceg Z, Hernandez-Vargas H. Optimized DNA extraction from neonatal dried blood spots: application in methylome profiling. BMC Biotechnol 2014; 14:60. [PMID: 24980254 PMCID: PMC4086704 DOI: 10.1186/1472-6750-14-60] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 06/20/2014] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Neonatal dried blood spots (DBS) represent an inexpensive method for long-term biobanking worldwide and are considered gold mines for research for several human diseases, including those of metabolic, infectious, genetic and epigenetic origin. However, the utility of DBS is restricted by the limited amount and quality of extractable biomolecules (including DNA), especially for genome wide profiling. Degradation of DNA in DBS often occurs during storage and extraction. Moreover, amplifying small quantities of DNA often leads to a bias in subsequent data, particularly in methylome profiles. Thus it is important to develop methodologies that maximize both the yield and quality of DNA from DBS for downstream analyses. RESULTS Using combinations of in-house-derived and modified commercial extraction kits, we developed a robust and efficient protocol, compatible with methylome studies, many of which require stringent bisulfite conversion steps. Several parameters were tested in a step-wise manner, including blood extraction, cell lysis, protein digestion, and DNA precipitation, purification and elution. DNA quality was assessed based on spectrophotometric measurements, DNA detectability by PCR, and DNA integrity by gel electrophoresis and bioanalyzer analyses. Genome scale Infinium HumanMethylation450 and locus-specific pyrosequencing data generated using the refined DBS extraction protocol were of high quality, reproducible and consistent. CONCLUSIONS This study may prove useful to meet the increased demand for research on prenatal, particularly epigenetic, origins of human diseases and for newborn screening programs, all of which are often based on DNA extracted from DBS.
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Affiliation(s)
- Akram Ghantous
- Epigenetics Group, International Agency for Research on Cancer (IARC), 150 rue Albert-Thomas, 69008 Lyon, France
| | - Richard Saffery
- Cancer and Disease Epigenetics, Murdoch Childrens Research Institute Royal Children's Hospital, Flemington Road Parkville, Victoria 3052, Australia
| | - Marie-Pierre Cros
- Epigenetics Group, International Agency for Research on Cancer (IARC), 150 rue Albert-Thomas, 69008 Lyon, France
| | - Anne-Louise Ponsonby
- Environmental & Genetic Epidemiology Research, Murdoch Children’s Research Institute Royal Children’s Hospital, Flemington Road Parkville, Victoria 3052, Australia
- Menzies Research Institute, University of Tasmania, Hobart TAS 7000, Australia
| | - Steven Hirschfeld
- Department of Health and Human Services, National Children’s Study, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health U.S., 6100 Executive Boulevard, Room 3A01, Bethesda, MD 20892, USA
| | - Carol Kasten
- Department of Health and Human Services, National Children’s Study, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health U.S., 6100 Executive Boulevard, Room 3A01, Bethesda, MD 20892, USA
| | - Terence Dwyer
- Environmental & Genetic Epidemiology Research, Murdoch Children’s Research Institute Royal Children’s Hospital, Flemington Road Parkville, Victoria 3052, Australia
- Menzies Research Institute, University of Tasmania, Hobart TAS 7000, Australia
- Chair, Steering Committtee, International Childhood Cancer Cohort Consortium (I4C
| | - Zdenko Herceg
- Epigenetics Group, International Agency for Research on Cancer (IARC), 150 rue Albert-Thomas, 69008 Lyon, France
| | - Hector Hernandez-Vargas
- Epigenetics Group, International Agency for Research on Cancer (IARC), 150 rue Albert-Thomas, 69008 Lyon, France
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Wu X, Pu X, Lin J. Lung Cancer Susceptibility and Risk Assessment Models. Lung Cancer 2014. [DOI: 10.1002/9781118468791.ch2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yin H, Sun B, Zhou Y, Wang M, Xu Z, Fu Z, Ai S. A new strategy for methylated DNA detection based on photoelectrochemical immunosensor using Bi2S3 nanorods, methyl bonding domain protein and anti-his tag antibody. Biosens Bioelectron 2014; 51:103-8. [DOI: 10.1016/j.bios.2013.07.040] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 07/07/2013] [Accepted: 07/21/2013] [Indexed: 11/29/2022]
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Lee HS, Barraza-Villarreal A, Hernandez-Vargas H, Sly PD, Biessy C, Ramakrishnan U, Romieu I, Herceg Z. Modulation of DNA methylation states and infant immune system by dietary supplementation with ω-3 PUFA during pregnancy in an intervention study. Am J Clin Nutr 2013; 98:480-7. [PMID: 23761484 PMCID: PMC3712555 DOI: 10.3945/ajcn.112.052241] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Accepted: 04/30/2013] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Early-life exposures to tobacco smoke and some dietary factors have been identified to induce epigenetic changes in genes involved in allergy and asthma development. Omega-3 (n-3) polyunsaturated fatty acid (PUFA) intake during pregnancy could modulate key cytokines and T helper (Th) cell maturation; however, little is known about the mechanism by which ω-3 PUFA could have a beneficial effect in preventing inflammatory disorders. OBJECTIVE We sought to test whether prenatal dietary supplementation with ω-3 PUFA during pregnancy may modulate epigenetic states in the infant immune system. DESIGN This study was based on a randomized intervention trial conducted in Mexican pregnant women supplemented daily with 400 mg docosahexaenoic acid (DHA) or a placebo from 18 to 22 wk of gestation to parturition. We applied quantitative profiling of DNA methylation states in Th1, Th2, Th17, and regulatory T-relevant genes as well as LINE1 repetitive elements of cord blood mononuclear cells (n = 261). RESULTS No significant difference in promoter methylation levels was shown between ω-3 PUFA-supplemented and control groups for the genes analyzed; however, ω-3 PUFA supplementation was associated with changes in methylation levels in LINE1 repetitive elements (P = 0.03) in infants of mothers who smoked during pregnancy. Furthermore, an association between the promoter methylation levels of IFNγ and IL13 was modulated by ω-3 PUFA supplementation (P = 0.06). CONCLUSIONS Our results indicate that maternal supplementation with ω-3 PUFA during pregnancy may modulate global methylation levels and the Th1/Th2 balance in infants. Therefore, the epigenetic mechanisms could provide attractive targets for prenatal modulation and prevention of inflammatory disorders and potentially other related diseases in childhood and adulthood.
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Affiliation(s)
- Ho-Sun Lee
- International Agency for Research on Cancer, Lyon, France
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Flora AV, Zambrano CA, Gallego X, Miyamoto JH, Johnson KA, Cowan KA, Stitzel JA, Ehringer MA. Functional characterization of SNPs in CHRNA3/B4 intergenic region associated with drug behaviors. Brain Res 2013; 1529:1-15. [PMID: 23872218 DOI: 10.1016/j.brainres.2013.07.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 07/08/2013] [Accepted: 07/10/2013] [Indexed: 11/17/2022]
Abstract
The cluster of human neuronal nicotinic receptor genes (CHRNA5/A3/B4) (15q25.1) has been associated with a variety of smoking and drug-related behaviors, as well as risk for lung cancer. CHRNA3/B4 intergenic single nucleotide polymorphisms (SNPs) rs1948 and rs8023462 have been associated with early initiation of alcohol and tobacco use, and rs6495309 has been associated with nicotine dependence and risk for lung cancer. An in vitro luciferase expression assay was used to determine whether these SNPs and surrounding sequences contribute to differences in gene expression using cell lines either expressing proteins characteristic of neuronal tissue or derived from lung cancers. Electrophoretic mobility shift assays (EMSAs) were performed to investigate whether nuclear proteins from these cell lines bind SNP alleles differentially. Results from expression assays were dependent on cell culture type and haplotype. EMSAs indicated that rs8023462 and rs6495309 bind nuclear proteins in an allele-specific way. Additionally, GATA transcription factors appeared to bind rs8023462 only when the minor/risk allele was present. Much work has been done to describe the rat Chrnb4/a3 intergenic region, but few studies have examined the human intergenic region effects on expression; therefore, these studies greatly aid human genetic research as it relates to observed nicotine phenotypes, lung cancer risk and potential underlying genetic mechanisms. Data from these experiments support the hypothesis that SNPs associated with human addiction-related phenotypes and lung cancer risk can affect gene expression, and are potential therapeutic targets. Additionally, this is the first evidence that rs8023462 interacts with GATA transcription factors to influence gene expression.
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Affiliation(s)
- Amber V Flora
- Institute for Behavioral Genetics, University of Colorado Boulder, 1480 30th Street, Boulder, CO 80303, USA.
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Zhang R, Zhao Y, Chu M, Wu C, Jin G, Dai J, Wang C, Hu L, Gou J, Qian C, Bai J, Wu T, Hu Z, Lin D, Shen H, Chen F. Pathway analysis for genome-wide association study of lung cancer in Han Chinese population. PLoS One 2013; 8:e57763. [PMID: 23469231 PMCID: PMC3585721 DOI: 10.1371/journal.pone.0057763] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Accepted: 01/24/2013] [Indexed: 11/30/2022] Open
Abstract
Genome-wide association studies (GWAS) have identified a number of genetic variants associated with lung cancer risk. However, these loci explain only a small fraction of lung cancer hereditability and other variants with weak effect may be lost in the GWAS approach due to the stringent significance level after multiple comparison correction. In this study, in order to identify important pathways involving the lung carcinogenesis, we performed a two-stage pathway analysis in GWAS of lung cancer in Han Chinese using gene set enrichment analysis (GSEA) method. Predefined pathways by BioCarta and KEGG databases were systematically evaluated on Nanjing study (Discovery stage: 1,473 cases and 1,962 controls) and the suggestive pathways were further to be validated in Beijing study (Replication stage: 858 cases and 1,115 controls). We found that four pathways (achPathway, metPathway, At1rPathway and rac1Pathway) were consistently significant in both studies and the P values for combined dataset were 0.012, 0.010, 0.022 and 0.005 respectively. These results were stable after sensitivity analysis based on gene definition and gene overlaps between pathways. These findings may provide new insights into the etiology of lung cancer.
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Affiliation(s)
- Ruyang Zhang
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yang Zhao
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Minjie Chu
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Chen Wu
- State Key Laboratory of Molecular Oncology and Department of Etiology and Carcinogenesis, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Guangfu Jin
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
- Section of Clinical Epidemiology, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China
| | - Juncheng Dai
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Cheng Wang
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Lingmin Hu
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jianwei Gou
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Chen Qian
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jianling Bai
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Tangchun Wu
- Institute of Occupational Medicine and Ministry of Education, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhibin Hu
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
- Section of Clinical Epidemiology, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Dongxin Lin
- State Key Laboratory of Molecular Oncology and Department of Etiology and Carcinogenesis, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongbing Shen
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
- Section of Clinical Epidemiology, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Feng Chen
- Department of Epidemiology and Biostatistics and Ministry of Education (MOE) Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
- * E-mail:
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Marshall AL, Christiani DC. Genetic susceptibility to lung cancer--light at the end of the tunnel? Carcinogenesis 2013; 34:487-502. [PMID: 23349013 DOI: 10.1093/carcin/bgt016] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Lung cancer is one of the most common and deadliest cancers in the world. The major socio-environmental risk factor involved in the development of lung cancer is cigarette smoking. Additionally, there are multiple genetic factors, which may also play a role in lung cancer risk. Early work focused on the presence of relatively prevalent but low-penetrance alterations in candidate genes leading to increased risk of lung cancer. Development of new technologies such as genomic profiling and genome-wide association studies has been helpful in the detection of new genetic variants likely involved in lung cancer risk. In this review, we discuss the role of multiple genetic variants and review their putative role in the risk of lung cancer. Identifying genetic biomarkers and patterns of genetic risk may be useful in the earlier detection and treatment of lung cancer patients.
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Affiliation(s)
- Ariela L Marshall
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
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Variants in the 15q24/25 locus associate with lung function decline in active smokers. PLoS One 2013; 8:e53219. [PMID: 23349703 PMCID: PMC3548843 DOI: 10.1371/journal.pone.0053219] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Accepted: 11/27/2012] [Indexed: 01/14/2023] Open
Abstract
Genetic variation in nicotinic acetylcholine receptor subunit genes (nAChRs) is associated with lung function level and chronic obstructive pulmonary disease (COPD). It is unknown whether these variants also predispose to an accelerated lung function decline. We investigated the association of nAChR susceptibility variants with lung function decline and COPD severity. The rs1051730 and rs8034191 variants were genotyped in a population-based cohort of 1,226 heavy smokers (COPACETIC) and in an independent cohort of 883 heavy smokers, of which 653 with COPD of varying severity (LEUVEN). Participants underwent pulmonary function tests at baseline. Lung function decline was assessed over a median follow-up of 3 years in COPACETIC. Current smokers homozygous for the rs1051730 A-allele or rs8034191 G-allele had significantly greater FEV1/FVC decline than homozygous carriers of wild-type alleles (3.3% and 4.3%, p = 0.026 and p = 0.009, respectively). In the LEUVEN cohort, rs1051730 AA-carriers and rs8034191 GG-carriers had a two-fold increased risk to suffer from COPD GOLD IV (OR 2.29, 95% confidence interval [CI] = 1.11–4.75; p = 0.025 and OR = 2.42, 95% [CI] = 1.18–4.95; p = 0.016, respectively). The same risk alleles conferred, respectively, a five- and four-fold increased risk to be referred for lung transplantation because of end-stage COPD (OR = 5.0, 95% [CI] = 1.68–14.89; p = 0.004 and OR = 4.06, 95% [CI] = 1.39–11.88; p = 0.010). In Europeans, variants in nAChRs associate with an accelerated lung function decline in current smokers and with clinically relevant COPD.
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Itoh Y, Suzuki T, Miyata N. Small-molecular modulators of cancer-associated epigenetic mechanisms. MOLECULAR BIOSYSTEMS 2013; 9:873-96. [DOI: 10.1039/c3mb25410k] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Nogueira da Costa A, Herceg Z. Detection of cancer-specific epigenomic changes in biofluids: powerful tools in biomarker discovery and application. Mol Oncol 2012; 6:704-15. [PMID: 22925902 PMCID: PMC5528342 DOI: 10.1016/j.molonc.2012.07.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Accepted: 07/30/2012] [Indexed: 01/30/2023] Open
Abstract
The genetic and epigenetic material originating from tumour that can be found in body fluids of individuals with cancer harbours tumour-specific alterations and represents an attractive target for biomarker discovery. Epigenetic changes (DNA methylation, histone modifications and non-coding RNAs) are present ubiquitously in virtually all types of human malignancies and may appear in early cancer development, and thus they provide particularly attractive markers with broad applications in diagnostics. In addition, because changes in the epigenome may constitute a signature of specific exposure to certain risk factors, they have the potential to serve as highly specific biomarkers for risk assessment. While reliable detection of cancer-specific epigenetic changes has proven to be technically challenging, a substantial progress has been made in developing the methodologies that allow an efficient and sensitive detection of epigenomic changes using the material originating from body fluids. In this review we discuss the application of epigenomics as a tool for biomarker research, with the focus on the analysis of DNA methylation in biofluids.
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Affiliation(s)
- André Nogueira da Costa
- Epigenetics Group, International Agency for Research on Cancer, 150 Cours Albert Thomas, 69372 Lyon, Cedex 08, France
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Zhang X, Wallace AD, Du P, Lin S, Baccarelli AA, Jiang H, Jafari N, Zheng Y, Xie H, Soares MB, Kibbe WA, Hou L. Genome-wide study of DNA methylation alterations in response to diazinon exposure in vitro. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2012; 34:959-68. [PMID: 22964155 PMCID: PMC3514648 DOI: 10.1016/j.etap.2012.07.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 07/20/2012] [Accepted: 07/25/2012] [Indexed: 05/21/2023]
Abstract
Pesticide exposure has repeatedly been associated with cancers. However, molecular mechanisms are largely undetermined. In this study, we examined whether exposure to diazinon, a common organophosphate that has been associated with cancers, could induce DNA methylation alterations. We conducted genome-wide DNA methylation analyses on DNA samples obtained from human hematopoietic K562 cell exposed to diazinon and ethanol using the Illumina Infinium HumanMethylation27 BeadChip. Bayesian-adjusted t-tests were used to identify differentially methylated gene promoter CpG sites. We identified 1069 CpG sites in 984 genes with significant methylation changes in diazinon-treated cells. Gene ontology analysis demonstrated that some genes are tumor suppressor genes, such as TP53INP1 (3.0-fold, q-value <0.001) and PTEN (2.6-fold, q-value <0.001), some genes are in cancer-related pathways, such as HDAC3 (2.2-fold, q-value=0.002), and some remain functionally unknown. Our results provided direct experimental evidence that diazinon may modify gene promoter DNA methylation levels, which may play a pathological role in cancer development.
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Affiliation(s)
- Xiao Zhang
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
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Tekpli X, Landvik NE, Skaug V, Gulsvik A, Haugen A, Zienolddiny S. Functional effect of polymorphisms in 15q25 locus on CHRNA5 mRNA, bulky DNA adducts andTP53mutations. Int J Cancer 2012; 132:1811-20. [DOI: 10.1002/ijc.27870] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Accepted: 09/03/2012] [Indexed: 11/08/2022]
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38
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Scherf DB, Sarkisyan N, Jacobsson H, Claus R, Bermejo JL, Peil B, Gu L, Muley T, Meister M, Dienemann H, Plass C, Risch A. Epigenetic screen identifies genotype-specific promoter DNA methylation and oncogenic potential of CHRNB4. Oncogene 2012; 32:3329-38. [PMID: 22945651 PMCID: PMC3710305 DOI: 10.1038/onc.2012.344] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Revised: 05/21/2012] [Accepted: 06/20/2012] [Indexed: 12/11/2022]
Abstract
Genome-wide association studies have highlighted three major lung cancer susceptibility regions at 15q25.1, 5p15.33 and 6p21.33. To gain insight into the possible mechanistic relevance of the genes in these regions, we investigated the regulation of candidate susceptibility gene expression by epigenetic alterations in healthy and lung tumor tissues. For genes up- or downregulated in lung tumors the influence of genetic variants on DNA methylation was investigated and in vitro studies were performed. We analyzed 394 CpG units within 19 CpG islands in the susceptibility regions in a screening set of 34 patients. Significant findings were validated in an independent patient set (n=50) with available DNA and RNA. The most consistent overall DNA methylation difference between tumor and adjacent normal tissue on 15q25 was tumor hypomethylation in the promoter region of CHRNB4 with a median difference of 8% (p<0.001) which resulted in overexpression of the transcript in tumors (p<0.001). Confirming previous studies we also found hypermethylation in CHRNA3 and TERT with significant expression changes. Decitabine treatment of H1299 cells resulted in reduced methylation levels in gene promoters, elevated transcript levels of CHRNB4 and CHRNA3 and a slight downregulation of TERT demonstrating epigenetic regulation of lung cancer cells. SNPs rs421629 on 5p15.33 and rs1948, rs660652, rs8040868 and rs2036527 on 15q25.1, previously identified as lung cancer risk or nicotine addiction modifiers were associated with tumor DNA methylation levels in the promoters of TERT and CHRNB4 (p<0.001) respectively in two independent sample sets (n=82; n=150). In addition, CHRNB4 knock down in two different cell lines (A549 and H1299) resulted in reduced proliferation (pA549<0.05;pH1299L<0.001) and propensity to form colonies in H1299 cells. These results suggest epigenetic deregulation of nicotinic acetylcholinereceptor subunit (nAChR) genes which in the case of CHRNB4 is strongly associated with genetic lung cancer susceptibility variants and a functional impact on tumorigenic potential.
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Affiliation(s)
- D B Scherf
- Division of Epigenomics and Cancer Risk Factors (C010), German Cancer Research Center (DKFZ), Heidelberg, Germany
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Abstract
Nicotine addiction (NA) is a common and devastating disease, such that the annual number of deaths (world-wide) from tobacco-related diseases will double from 5 million in the year 2000 to 10 million in 2020. Nicotine is the only substance in tobacco which animals and humans will self-administer. NA, as a lifetime diagnosis, has been assessed in various approaches, including the concept of cigarettes per day (CPD). Other assessments of NA are somewhat more comprehensive, such as the Fagerstrom Test for Nicotine Dependence or the American Psychiatric Association's Diagnostic and Statistical Manual (fourth edition) diagnosis of nicotine dependence. These different measures have moderate agreement with one another. Twin, family and adoption studies have shown that these different assessments of NA have substantial heritability (that fraction of risk attributable to genetic factors). The heritability of NA has been estimated at 50-75%, depending on the definition and the population under study. DNA-based studies of NA have been somewhat successful in identifying a common haplotype, which increases risk for NA among European-origin populations. This haplotype explains a small amount of variance, accounting for ∼1 CPD, and it includes the α5 and the α3 nicotinic receptor subunit genes (CHRNA5 and CHRNA3). The review will focus on this implicated region. In this risk region, there is a common (among European-origin people) mis-sense single-nucleotide polymorphism in the CHRNA5 gene (D398N), which changes a conserved amino acid from aspartic acid to asparagine. The risk allele (398N) confers decreased calcium permeability and more extensive desensitization, according to in vitro cellular studies, raising the possibility that a positive allosteric modulator of the (α4β2)(2)α5 type of nicotinic receptor might have therapeutic potential in NA. There are other genetic influences on NA in this region, apart from the mis-sense variant, and additional biological experiments must be done to understand them.
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Affiliation(s)
- W H Berrettini
- Department of Psychiatry, Center for Neurobiology and Behavior, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.
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40
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Steinlein OK. Ion channel mutations in neuronal diseases: a genetics perspective. Chem Rev 2012; 112:6334-52. [PMID: 22607259 DOI: 10.1021/cr300044d] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ortrud K Steinlein
- Institute of Human Genetics, University Hospital, Ludwig-Maximilians-University , Goethestr. 29, D-80336 Munich, Germany
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41
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Mani S, Szymańska K, Cuenin C, Zaridze D, Balassiano K, Lima SCS, Matos E, Daudt A, Koifman S, Filho VW, Menezes AMB, Curado MP, Ferro G, Vaissière T, Sylla BS, Tommasino M, Pinto LFR, Boffetta P, Hainaut P, Brennan P, Herceg Z. DNA methylation changes associated with risk factors in tumors of the upper aerodigestive tract. Epigenetics 2012; 7:270-7. [PMID: 22430803 PMCID: PMC3335950 DOI: 10.4161/epi.7.3.19306] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Revised: 01/05/2012] [Accepted: 01/09/2012] [Indexed: 12/20/2022] Open
Abstract
Cancers of the upper aerodigestive tract (UADT) are common forms of malignancy associated with tobacco and alcohol exposures, although human papillomavirus and nutritional deficiency are also important risk factors. While somatically acquired DNA methylation changes have been associated with UADT cancers, what triggers these events and precise epigenetic targets are poorly understood. In this study, we applied quantitative profiling of DNA methylation states in a panel of cancer-associated genes to a case-control study of UADT cancers. Our analyses revealed a high frequency of aberrant hypermethylation of several genes, including MYOD1, CHRNA3 and MTHFR in UADT tumors, whereas CDKN2A was moderately hypermethylated. Among differentially methylated genes, we identified a new gene (the nicotinic acetycholine receptor gene) as target of aberrant hypermethylation in UADT cancers, suggesting that epigenetic deregulation of nicotinic acetycholine receptors in non-neuronal tissues may promote the development of UADT cancers. Importantly, we found that sex and age is strongly associated with the methylation states, whereas tobacco smoking and alcohol intake may also influence the methylation levels in specific genes. This study identifies aberrant DNA methylation patterns in UADT cancers and suggests a potential mechanism by which environmental factors may deregulate key cellular genes involved in tumor suppression and contribute to UADT cancers.
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Affiliation(s)
- Samson Mani
- International Agency for Research on Cancer (IARC); Lyon, France
| | | | - Cyrille Cuenin
- International Agency for Research on Cancer (IARC); Lyon, France
| | | | - Karen Balassiano
- International Agency for Research on Cancer (IARC); Lyon, France
| | - Sheila CS Lima
- International Agency for Research on Cancer (IARC); Lyon, France
- Divisão de Genética; Instituto Nacional de Câncer; Rio de Janeiro, Brazil
| | - Elena Matos
- Institut of Oncology Angel H. Roffo; University of Buenos Aires; Buenos Aires, Argentina
| | | | - Sergio Koifman
- Escola Nacional de Saude Publica; Rio de Janeiro, Brazil
| | | | | | | | - Gilles Ferro
- International Agency for Research on Cancer (IARC); Lyon, France
| | - Thomas Vaissière
- International Agency for Research on Cancer (IARC); Lyon, France
| | - Bakary S Sylla
- International Agency for Research on Cancer (IARC); Lyon, France
| | | | - Luis Felipe Ribeiro Pinto
- Divisão de Genética; Instituto Nacional de Câncer; Rio de Janeiro, Brazil
- Departamento de Bioquímica; Universidade do Estado do Rio de Janeiro; Instituto de Biologia Roberto Alcantara Gomes; Rio de Janeiro, Brazil
| | - Paolo Boffetta
- The International Prevention Research Institute; Lyon, France
| | - Pierre Hainaut
- International Agency for Research on Cancer (IARC); Lyon, France
| | - Paul Brennan
- International Agency for Research on Cancer (IARC); Lyon, France
| | - Zdenko Herceg
- International Agency for Research on Cancer (IARC); Lyon, France
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Abstract
Lung cancer is a heterogeneous disease clinically, biologically, histologically, and molecularly. Understanding the molecular causes of this heterogeneity, which might reflect changes occurring in different classes of epithelial cells or different molecular changes occurring in the same target lung epithelial cells, is the focus of current research. Identifying the genes and pathways involved, determining how they relate to the biological behavior of lung cancer, and their utility as diagnostic and therapeutic targets are important basic and translational research issues. This article reviews current information on the key molecular steps in lung cancer pathogenesis, their timing, and clinical implications.
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Affiliation(s)
- Jill E Larsen
- Hamon Center for Therapeutic Oncology Research, Simmons Cancer Center, 6000 Harry Hines Boulevard, University of Texas Southwestern Medical Center, Dallas, TX 75390-8593, USA
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Rajendran G, Shanmuganandam K, Bendre A, Muzumdar D, Mujumdar D, Goel A, Shiras A. Epigenetic regulation of DNA methyltransferases: DNMT1 and DNMT3B in gliomas. J Neurooncol 2011; 104:483-94. [PMID: 21229291 DOI: 10.1007/s11060-010-0520-2] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Accepted: 12/21/2010] [Indexed: 02/08/2023]
Abstract
The role of epigenetics and significance of aberrant gene regulation in etiology of cancer is a well-established phenomenon. The hallmark of cancer epigenetics is aberrant DNA methylation consisting of global hypomethylation and regional hypermethylation of tumor suppressor genes (TSGs) by DNA methyltransferases (DNMTs). In mammals, DNA methylation is catalyzed by DNMTs encoded by DNMT1, DNMT3A, and DNMT3B. Interestingly, little is known about variation in the methylation status of epigenetic regulators themselves in gliomas. Here, we report significant overexpression of DNMT1 and DNMT3B. A study of the methylation status and histone modifications at the promoter region of DNA methyltransferase I (DNMT1) gene revealed an unmethylated DNA promoter, similar to that detected in normal brain tissues. However, a differential histone code with distinct euchromatin marks--AcH3, AcH4, and H3k4me2--was specifically detected in tumors, unlike in normal brain tissues, which were found predominantly enriched with heterochromatin marks such as H3K9me2 and H3K27me3. In contrast, a differential methylation pattern of DNMT3B gene promoter occurred in glioma tumors, wherein it was found hypomethylated. Transcriptional silencing by CpG island methylation is a prevalent mechanism for inactivation of TSGs. Inhibiting DNMTs by 5-azacytidine (DNMT inhibitor) treatment led to significant inhibition of expression of DNMT1 and DNMT3B and enhanced expression of TSGs such as PTEN and p21 analyzed in this study. Our studies have identified effects of increased presence of DNMTs on inhibition of tumor suppressors that are epigenetically silenced in gliomas, thereby leading to aberrant regulation of cell cycle progression and failure to maintain genomic stability.
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Rodriguez-Gaztelumendi A, Alvehus M, Andersson T, Jacobsson SOP. Comparison of the effects of nicotine upon the transcellular electrical resistance and sucrose permeability of human ECV304/rat C6 co-cultures and human CaCo₂ cells. Toxicol Lett 2011; 207:1-6. [PMID: 21889975 DOI: 10.1016/j.toxlet.2011.08.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 08/18/2011] [Accepted: 08/19/2011] [Indexed: 01/31/2023]
Abstract
It is now well established that nicotine adversely affects the integrity of the blood-brain barrier (BBB). In contrast, nicotine has been reported to increase the transendothelial electrical resistance (TEER) of CaCo₂ colon cancer cells. In the present study, the effects of nicotine upon the TEER and sucrose permeability of ECV304/C6 co-cultures and, for comparative purposes, CaCo₂ cells has been investigated. Neither ECV304 nor C6 cells were found to express measurable membrane levels of nicotinic acetylcholine receptors, as assessed by [³H]-epibatidine binding. Nicotine treatment (0.01-1 μM) for up to 48 h had little or no effect upon the TEER or sucrose permeability of either ECV304/C6 co-cultures or CaCo₂ cells. It is concluded that in contrast to the situation for the BBB, ECV304 cells lack nicotinic acetylcholine receptors and the barrier properties of ECV304/C6 co-cultures are not affected to any important extent by nicotine. This study underlines the conclusions made by other authors that the ECV304/C6 co-culture system is of limited validity as a model of the BBB.
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45
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Chen C, Zhao M, Yin N, He B, Wang B, Yuan Y, Yu F, Hu J, Yin B, Lu Q. Abnormal histone acetylation and methylation levels in esophageal squamous cell carcinomas. Cancer Invest 2011; 29:548-56. [PMID: 21843048 DOI: 10.3109/07357907.2011.597810] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
To investigate whether alterations in histone modifications occur in esophageal squamous cell carcinoma (ESCC), we measured histone H3/ H4 acetylation and H3K4/H3K27 methylation levels, as well as the expression of chromatin modifier genes in tumor and healthy esophageal tissue from ESCC patients. We found evidence of global H3 and H4 hypoacetylation, H3K4 and H3K27 hypermethylation in ESCC tissue. Both H3 hypoacetylation and H3K27 hypermethylation correlated with the severity and histological differentiation of the tumor, and H3K4 hypermethylation also correlated with tumor differentiation. Our results suggest that aberrant histone modifications may play an important role in the development and progression of ESCC.
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Affiliation(s)
- Chen Chen
- Department of Cardiothoracic Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
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46
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In vitro and ex vivo analysis of CHRNA3 and CHRNA5 haplotype expression. PLoS One 2011; 6:e23373. [PMID: 21858091 PMCID: PMC3155531 DOI: 10.1371/journal.pone.0023373] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Accepted: 07/14/2011] [Indexed: 02/08/2023] Open
Abstract
Genome-wide association studies implicate variations in CHRNA5 and CHRNA3 as being associated with nicotine addiction (NA). Multiple common haplotypes (“risk”, “mixed” and “protective”) exist in Europeans; however, high linkage disequilibrium between variations in CHRNA5 and CHRNA3 makes assigning causative allele(s) for NA difficult through genotyping experiments alone. We investigated whether CHRNA5 or CHRNA3 promoter haplotypes, associated previously with NA, might influence allelic expression levels. For in vitro analyses, promoter haplotypes were sub-cloned into a luciferase reporter vector. When assessed in BE(2)-C cells, luciferase expression was equivalent among CHRNA3 haplotypes, but the combination of deletion at rs3841324 and variation at rs503464 decreased CHRNA5 promoter-derived luciferase activity, possibly due to loss of an SP-1 and other site(s). Variation within the CHRNA5 5’UTR at rs55853698 and rs55781567 also altered luciferase expression in BE(2)-C cells. Allelic expression imbalance (AEI) from the “risk” or “protective” haplotypes was assessed in post-mortem brain tissue from individuals heterozygous at coding polymorphisms in CHRNA3 (rs1051730) or CHRNA5 (rs16969968). In most cases, equivalent allelic expression was observed; however, one individual showed CHRNA5 AEI that favored the “protective” allele and that was concordant with heterozygosity at polymorphisms ∼13.5 kb upstream of the CHRNA5 transcription start site. Putative enhancer activity from these distal promoter elements was assessed using heterologous promoter constructs. We observed no differences in promoter activity from the two distal promoter haplotypes examined, but found that the distal promoter region strongly repressed transcription. We conclude that CHRNA5 promoter variants may affect relative risk for NA in some heterozygous individuals.
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47
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Balassiano K, Lima S, Jenab M, Overvad K, Tjonneland A, Boutron-Ruault MC, Clavel-Chapelon F, Canzian F, Kaaks R, Boeing H, Meidtner K, Trichopoulou A, Laglou P, Vineis P, Panico S, Palli D, Grioni S, Tumino R, Lund E, Bueno-de-Mesquita HB, Numans ME, Peeters PHM, Ramon Quirós J, Sánchez MJ, Navarro C, Ardanaz E, Dorronsoro M, Hallmans G, Stenling R, Ehrnström R, Regner S, Allen NE, Travis RC, Khaw KT, Offerhaus GJA, Sala N, Riboli E, Hainaut P, Scoazec JY, Sylla BS, Gonzalez CA, Herceg Z. Aberrant DNA methylation of cancer-associated genes in gastric cancer in the European Prospective Investigation into Cancer and Nutrition (EPIC-EURGAST). Cancer Lett 2011; 311:85-95. [PMID: 21831520 DOI: 10.1016/j.canlet.2011.06.038] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 06/27/2011] [Accepted: 06/29/2011] [Indexed: 12/20/2022]
Abstract
Epigenetic events have emerged as key mechanisms in the regulation of critical biological processes and in the development of a wide variety of human malignancies, including gastric cancer (GC), however precise gene targets of aberrant DNA methylation in GC remain largely unknown. Here, we have combined pyrosequencing-based quantitative analysis of DNA methylation in 98 GC cases and 64 controls nested within the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort and in cancer tissue and non-tumorigenic adjacent tissue of an independent series of GC samples. A panel of 10 cancer-associated genes (CHRNA3, DOK1, MGMT, RASSF1A, p14ARF, CDH1, MLH1, ALDH2, GNMT and MTHFR) and LINE-1 repetitive elements were included in the analysis and their association with clinicopathological characteristics (sex, age at diagnosis, anatomical sub-site, histological sub-type) was examined. Three out of the 10 genes analyzed exhibited a marked hypermethylation, whereas two genes (ALDH2 and MTHFR) showed significant hypomethylation, in gastric tumors. Among differentially methylated genes, we identified new genes (CHRNA3 and DOK1) as targets of aberrant hypermethylation in GC, suggesting that epigenetic deregulation of these genes and their corresponding cellular pathways may promote the development and progression of GC. We also found that global demethylation of tumor cell genomes occurs in GC, consistent with the notion that abnormal hypermethylation of specific genes occurs concomitantly with genome-wide hypomethylation. Age and gender had no significant influence on methylation states, but an association was observed between LINE-1 and MLH1 methylation levels with histological sub-type and anatomical sub-site. This study identifies aberrant methylation patters in specific genes in GC thus providing information that could be exploited as novel biomarkers in clinics and molecular epidemiology of GC.
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Affiliation(s)
- Karen Balassiano
- International Agency for Research on Cancer (IARC), 150 Cours Albert Thomas, 69008 Lyon, France
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48
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Brody JS, Steiling K. Interaction of cigarette exposure and airway epithelial cell gene expression. Annu Rev Physiol 2011; 73:437-56. [PMID: 21090967 DOI: 10.1146/annurev-physiol-012110-142219] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Cigarette smoking is responsible for lung cancer and chronic obstructive pulmonary disease (COPD), the leading cause of death from cancer and the second-leading cause of death in the United States. In the United States, 46 million people smoke, with an equal number of former smokers. Moreover, 20-25% of current or former smokers will develop either disease, and smokers with one disease are at increased risk for developing the other. There are no tools for predicting risk of developing either disease; no accepted tools for early diagnosis of potentially curable lung cancer; and no tools for defining molecular pathways or molecular subtypes of these diseases, for predicting rate of progression, or for assessing response to therapy at a biochemical or molecular level. This review discusses current studies and the future potential of measuring global gene expression in epithelial cells that are in the airway field of injury and of using the genomic information derived to begin to answer some of the above questions.
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Affiliation(s)
- Jerome S Brody
- Pulmonary Center, Boston University School of Medicine, Massachusetts 02218, USA.
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49
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Improgo MR, Tapper AR, Gardner PD. Nicotinic acetylcholine receptor-mediated mechanisms in lung cancer. Biochem Pharmacol 2011; 82:1015-21. [PMID: 21640716 DOI: 10.1016/j.bcp.2011.05.020] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Revised: 05/16/2011] [Accepted: 05/17/2011] [Indexed: 11/30/2022]
Abstract
Despite the known adverse health effects associated with tobacco use, over 45 million adults in the United States smoke. Cigarette smoking is the major etiologic factor associated with lung cancer. Cigarettes contain thousands of toxic chemicals, many of which are carcinogenic. Nicotine contributes directly to lung carcinogenesis through the activation of nicotinic acetylcholine receptors (nAChRs). nAChRs are ligand-gated ion channels, expressed in both normal and lung cancer cells, which mediate the proliferative, pro-survival, angiogenic, and metastatic effects of nicotine and its nitrosamine derivatives. The underlying molecular mechanisms involve increases in intracellular calcium levels and activation of cancer signal transduction pathways. In addition, acetylcholine (ACh) acts as an autocrine or paracrine growth factor in lung cancer. Other neurotransmitters and neuropeptides also activate similar growth loops. Recent genetic studies further support a role for nAChRs in the development of lung cancer. Several nAChR antagonists have been shown to inhibit lung cancer growth, suggesting that nAChRs may serve as valuable targets for biomarker-guided lung cancer interventions.
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Affiliation(s)
- Ma Reina Improgo
- Brudnick Neuropsychiatric Research Institute, Department of Psychiatry, University of Massachusetts Medical School, 303 Belmont St., Worcester, MA 01604, USA.
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50
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Krais AM, Hautefeuille AH, Cros MP, Krutovskikh V, Tournier JM, Birembaut P, Thépot A, Paliwal A, Herceg Z, Boffetta P, Brennan P, Hainaut PL. CHRNA5 as negative regulator of nicotine signaling in normal and cancer bronchial cells: effects on motility, migration and p63 expression. Carcinogenesis 2011; 32:1388-95. [PMID: 21586512 DOI: 10.1093/carcin/bgr090] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Genome-wide association studies have linked lung cancer risk with a region of chromosome 15q25.1 containing CHRNA3, CHRNA5 and CHRNB4 encoding α3, α5 and β4 subunits of nicotinic acetylcholine receptors (nAChR), respectively. One of the strongest associations was observed for a non-silent single-nucleotide polymorphism at codon 398 in CHRNA5. Here, we have used pharmacological (antagonists) or genetic (RNA interference) interventions to modulate the activity of CHRNA5 in non-transformed bronchial cells and in lung cancer cell lines. In both cell types, silencing CHRNA5 or inhibiting receptors containing nAChR α5 with α-conotoxin MII exerted a nicotine-like effect, with increased motility and invasiveness in vitro and increasing calcium influx. The effects on motility were enhanced by addition of nicotine but blocked by inhibiting CHRNA7, which encodes the homopentameric receptor α7 subunit. Silencing CHRNA5 also decreased the expression of cell adhesion molecules P120 and ZO-1 in lung cancer cells as well as the expression of DeltaNp63α in squamous cell carcinoma cell lines. These results demonstrate a role for CHRNA5 in modulating adhesion and motility in bronchial cells, as well as in regulating p63, a potential oncogene in squamous cell carcinoma.
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Affiliation(s)
- Annette M Krais
- Group of Molecular Carcinogenesis, 150 Cours Albert Thomas, 69372 Lyon Cedex 08, France
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