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Daylan AEC, Miao E, Tang K, Chiu G, Cheng H. Lung Cancer in Never Smokers: Delving into Epidemiology, Genomic and Immune Landscape, Prognosis, Treatment, and Screening. Lung 2023; 201:521-529. [PMID: 37973682 DOI: 10.1007/s00408-023-00661-3] [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: 11/10/2023] [Accepted: 11/11/2023] [Indexed: 11/19/2023]
Abstract
Lung cancer in never smokers (LCINS) represents a growing and distinct entity within the broader landscape of lung malignancies. This review provides a comprehensive overview of LCINS, encompassing its epidemiologic trends, risk factors, distinct genomic alterations, clinical outcomes and the ongoing initiative aimed at formulating screening guidelines tailored to this unique population. As LCINS continues to gain prominence, understanding its intricate genomic landscape has become pivotal for tailoring effective therapeutic strategies. Moreover, LCINS does not meet the criteria for lung cancer screening as per the current guidelines. Hence, there is an urgent need to explore its heterogeneity in order to devise optimal screening guidelines conducive to early-stage detection. This review underscores the vital importance of detailed research to elucidate the multifaceted nature of LCINS, with the potential to shape future clinical management and screening recommendations for this unique and growing patient cohort.
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Affiliation(s)
- Ayse Ece Cali Daylan
- Department of Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Emily Miao
- Department of Medicine, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY, USA
| | - Kevin Tang
- Department of Medicine, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY, USA
| | - Grace Chiu
- Scarsdale High School, Scarsdale, NY, USA
| | - Haiying Cheng
- Department of Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY, 10461, USA.
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2
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Trendowski MR, Lusk CM, Wenzlaff AS, Neslund-Dudas C, Gadgeel SM, Soubani AO, Schwartz AG. Assessing a Polygenic Risk Score for Lung Cancer Susceptibility in Non-Hispanic White and Black Populations. Cancer Epidemiol Biomarkers Prev 2023; 32:1558-1563. [PMID: 37578347 PMCID: PMC10841320 DOI: 10.1158/1055-9965.epi-23-0174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 06/14/2023] [Accepted: 08/10/2023] [Indexed: 08/15/2023] Open
Abstract
BACKGROUND Polygenic risk scores (PRS) have become an increasingly popular approach to evaluate cancer susceptibility, but have not adequately represented Black populations in model development. METHODS We used a previously published lung cancer PRS on the basis of 80 SNPs associated with lung cancer risk in the OncoArray cohort and validated in UK Biobank. The PRS was evaluated for association with lung cancer risk adjusting for age, sex, total pack-years, family history of lung cancer, history of chronic obstructive pulmonary disease, and the top five principal components for genetic ancestry. RESULTS Among the 80 PRS SNPs included in the score, 14 were significantly associated with lung cancer risk (P < 0.05) in INHALE White participants, while there were no significant SNPs among INHALE Black participants. After adjusting for covariates, the PRS was significantly associated with risk in Whites (continuous score P = 0.007), but not in Blacks (continuous score P = 0.88). The PRS remained a statistically significant predictor of lung cancer risk in Whites ineligible for lung cancer screening under current U.S. Preventive Services Task Force guidelines (P = 0.02). CONCLUSIONS Using a previously validated PRS, we did find some predictive ability for lung cancer in INHALE White participants beyond traditional risk factors. However, this effect was not observed in Black participants, indicating the need to develop and validate ancestry-specific lung cancer risk models. IMPACT While a previously published lung cancer PRS was able to stratify White participants into different levels of risk, the model was not predictive in Blacks. Our findings highlight the need to develop and validate ancestry-specific lung cancer risk models.
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Affiliation(s)
- Matthew R. Trendowski
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI, USA
- Karmanos Cancer Institute, Detroit, MI, USA
| | - Christine M. Lusk
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI, USA
- Karmanos Cancer Institute, Detroit, MI, USA
| | - Angela S. Wenzlaff
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI, USA
- Karmanos Cancer Institute, Detroit, MI, USA
| | - Christine Neslund-Dudas
- Department of Public Health Sciences, Henry Ford Health, Detroit, MI, USA
- Henry Ford Cancer Institute, Henry Ford Health, Detroit, MI, USA
| | | | - Ayman O. Soubani
- Karmanos Cancer Institute, Detroit, MI, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ann G. Schwartz
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI, USA
- Karmanos Cancer Institute, Detroit, MI, USA
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Cannon-Albright LA, Teerlink CC, Stevens J, Facelli JC, Carr SR, Allen-Brady K, Puri S, Bailey-Wilson JE, Musolf AM, Akerley W. A rare FGF5 candidate variant (rs112475347) for predisposition to nonsquamous, nonsmall-cell lung cancer. Int J Cancer 2023; 153:364-372. [PMID: 36916144 PMCID: PMC10182245 DOI: 10.1002/ijc.34510] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 03/16/2023]
Abstract
A unique approach with rare resources was used to identify candidate variants predisposing to familial nonsquamous nonsmall-cell lung cancers (NSNSCLC). We analyzed sequence data from NSNSCLC-affected cousin pairs belonging to high-risk lung cancer pedigrees identified in a genealogy of Utah linked to statewide cancer records to identify rare, shared candidate predisposition variants. Variants were tested for association with lung cancer risk in UK Biobank. Evidence for linkage with lung cancer was also reviewed in families from the Genetic Epidemiology of Lung Cancer Consortium. Protein prediction modeling compared the mutation with reference. We sequenced NSNSCLC-affected cousin pairs from eight high-risk lung cancer pedigrees and identified 66 rare candidate variants shared in the cousin pairs. One variant in the FGF5 gene also showed significant association with lung cancer in UKBiobank. This variant was observed in 3/163 additional sampled Utah lung cancer cases, 2 of whom were related in another independent pedigree. Modeling of the predicted protein predicted a second binding site for SO4 that may indicate binding differences. This unique study identified multiple candidate predisposition variants for NSNSCLC, including a rare variant in FGF5 that was significantly associated with lung cancer risk and that segregated with lung cancer in the two pedigrees in which it was observed. FGF5 is an oncogenic factor in several human cancers, and the mutation found here (W81C) changes the binding ability of heparan sulfate to FGF5, which might lead to its deregulation. These results support FGF5 as a potential NSNSCLC predisposition gene and present additional candidate predisposition variants.
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Affiliation(s)
- Lisa A Cannon-Albright
- Genetic Epidemiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
- Huntsman Cancer Institute, Salt Lake City, Utah, USA
- George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, Utah, USA
| | - Craig C Teerlink
- Genetic Epidemiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
- George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, Utah, USA
| | - Jeff Stevens
- Genetic Epidemiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Julio C Facelli
- Department of BioMedical Informatics, University of Utah School of Medicine, Salt Lake City, Utah, USA
- Clinical and Translational Science Institute, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Shamus R Carr
- Thoracic Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Kristina Allen-Brady
- Genetic Epidemiology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Sonam Puri
- Huntsman Cancer Institute, Salt Lake City, Utah, USA
- Medical Oncology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Joan E Bailey-Wilson
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland, USA
| | - Anthony M Musolf
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland, USA
| | - Wallace Akerley
- Huntsman Cancer Institute, Salt Lake City, Utah, USA
- Medical Oncology, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
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Hernandez-Martinez JM, Rosell R, Arrieta O. Somatic and germline ATM variants in non-small-cell lung cancer: Therapeutic implications. Crit Rev Oncol Hematol 2023:104058. [PMID: 37343657 DOI: 10.1016/j.critrevonc.2023.104058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 06/16/2023] [Indexed: 06/23/2023] Open
Abstract
ATM is an apical kinase of the DNA damage response involved in the repair of DNA double-strand breaks. Germline ATM variants (gATM) have been associated with an increased risk of developing lung adenocarcinoma (LUAD), and approximately 9% of LUAD tumors harbor somatic ATM mutations (sATM). Biallelic carriers of pathogenic gATM exhibit a plethora of immunological abnormalities, but few studies have evaluated the contribution of immune dysfunction to lung cancer susceptibility. Indeed, little is known about the clinicopathological characteristics of lung cancer patients with sATM or gATM alterations. The introduction of targeted therapies and immunotherapies, and the increasing number of clinical trials evaluating treatment combinations, warrants a careful reexamination of the benefits and harms that different therapeutic approaches have had in lung cancer patients with sATM or gATM. This review will discuss the role of ATM in the pathogenesis of lung cancer, highlighting potential therapeutic approaches to manage ATM-deficient lung cancers.
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Affiliation(s)
- Juan-Manuel Hernandez-Martinez
- Thoracic Oncology Unit and Experimental Oncology Laboratory, Instituto Nacional de Cancerología de México (INCan); CONACYT-Instituto Nacional de Cancerología, Mexico City, Mexico
| | - Rafael Rosell
- Institut d'Investigació en Ciències Germans Trias i Pujol, Badalona, Spain; (4)Institut Català d'Oncologia, Hospital Germans Trias i Pujol, Badalona, Spain
| | - Oscar Arrieta
- Thoracic Oncology Unit and Experimental Oncology Laboratory, Instituto Nacional de Cancerología de México (INCan).
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Bao G, Guan X, Liang J, Yao Y, Xiang Y, Li T, Zhong X. A Germline Mutation in ATR Is Associated With Lung Adenocarcinoma in Asian Patients. Front Oncol 2022; 12:855305. [PMID: 35712480 PMCID: PMC9195140 DOI: 10.3389/fonc.2022.855305] [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: 01/15/2022] [Accepted: 04/26/2022] [Indexed: 12/01/2022] Open
Abstract
Background Familial lung cancer (FLC) accounts for 8% of lung adenocarcinoma. It is known that a few germline mutations are associated with risk increasing and may provide new screening and treatment option. The goal of this study is to identify an FLC gene among three members of an FLC family. Methods To uncover somatic and embryonic mutations linked with familial lung cancer, whole exome sequencing was done on surgical tissues and peripheral blood from three sisters in a family diagnosed with pulmonary lung adenocarcinoma (LUAD). At the same time, single-cell RNA sequencing (scRNA-seq) and bulk RNA sequencing data in public databases were enrolled to identify specific gene expression level. Results Ataxia Telangiectasia and Rad3-Related Protein (ATR) gene C.7667C >G (p.T2556S) mutation were found in 3 patients with familial lung cancer. Whole-genome sequencing revealed that the three sisters exhibited similar somatic mutation patterns. Besides ATR mutations, common mutated genes (BRCA1, EGFR, and ROS1) that characterize LUAD were also found in 5 tumor samples. Analysis for the ATR expression in LUAD patients by single-cell sequencing data, we found ATR expression of tumor patients at high level in immune cells when compared with normal patients, but the expression of ATR in stromal cells has the opposite result. Conclusion We found a germline mutation in the ATR gene in three sisters of a Chinese family affected by familial lung cancer, which may be a genetic factor for lung cancer susceptibility.
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Affiliation(s)
- Guangyao Bao
- Department of Thoracic Surgery, First Affiliated Hospital, China Medical University, Shenyang, China
| | - Xiaojiao Guan
- Department of Pathology, Shengjing Hospital, China Medical University, Shenyang, China
| | - Jie Liang
- Department of Thoracic Surgery, First Affiliated Hospital, China Medical University, Shenyang, China
| | - Yao Yao
- Department of Thoracic Surgery, First Affiliated Hospital, China Medical University, Shenyang, China
| | - Yifan Xiang
- Department of Thoracic Surgery, First Affiliated Hospital, China Medical University, Shenyang, China
| | - Tian Li
- School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Xinwen Zhong
- Department of Thoracic Surgery, First Affiliated Hospital, China Medical University, Shenyang, China
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Pettit RW, Byun J, Han Y, Ostrom QT, Edelson J, Walsh KM, Bondy ML, Hung RJ, McKay JD, Amos CI. The shared genetic architecture between epidemiological and behavioral traits with lung cancer. Sci Rep 2021; 11:17559. [PMID: 34475455 PMCID: PMC8413319 DOI: 10.1038/s41598-021-96685-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 08/06/2021] [Indexed: 01/16/2023] Open
Abstract
The complex polygenic nature of lung cancer is not fully characterized. Our study seeks to identify novel phenotypes associated with lung cancer using cross-trait linkage disequilibrium score regression (LDSR). We measured pairwise genetic correlation (rg) and SNP heritability (h2) between 347 traits and lung cancer risk using genome-wide association study summary statistics from the UKBB and OncoArray consortium. Further, we conducted analysis after removing genomic regions previously associated with smoking behaviors to mitigate potential confounding effects. We found significant negative genetic correlations between lung cancer risk and dietary behaviors, fitness metrics, educational attainment, and other psychosocial traits. Alcohol taken with meals (rg = - 0.41, h2 = 0.10, p = 1.33 × 10-16), increased fluid intelligence scores (rg = - 0.25, h2 = 0.22, p = 4.54 × 10-8), and the age at which full time education was completed (rg = - 0.45, h2 = 0.11, p = 1.24 × 10-20) demonstrated negative genetic correlation with lung cancer susceptibility. The body mass index was positively correlated with lung cancer risk (rg = 0.20, h2 = 0.25, p = 2.61 × 10-9). This analysis reveals shared genetic architecture between several traits and lung cancer predisposition. Future work should test for causal relationships and investigate common underlying genetic mechanisms across these genetically correlated traits.
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Affiliation(s)
- Rowland W Pettit
- Institute for Clinical and Translational Research, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Jinyoung Byun
- Institute for Clinical and Translational Research, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Younghun Han
- Institute for Clinical and Translational Research, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Quinn T Ostrom
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Jacob Edelson
- Department of Biomedical Data Science, School of Medicine, Stanford University, Stanford, CA, USA
| | - Kyle M Walsh
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Melissa L Bondy
- Department of Epidemiology and Population Health, School of Medicine, Stanford University, Stanford, CA, USA
| | - Rayjean J Hung
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada
- Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - James D McKay
- Section of Genetics, International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Christopher I Amos
- Institute for Clinical and Translational Research, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX, USA.
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA.
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Byun J, Han Y, Ostrom QT, Edelson J, Walsh KM, Pettit RW, Bondy ML, Hung RJ, McKay JD, Amos CI. The Shared Genetic Architectures Between Lung Cancer and Multiple Polygenic Phenotypes in Genome-Wide Association Studies. Cancer Epidemiol Biomarkers Prev 2021; 30:1156-1164. [PMID: 33771847 PMCID: PMC9108090 DOI: 10.1158/1055-9965.epi-20-1635] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/19/2021] [Accepted: 03/23/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Prior genome-wide association studies have identified numerous lung cancer risk loci and reveal substantial etiologic heterogeneity across histologic subtypes. Analyzing the shared genetic architecture underlying variation in complex traits can elucidate common genetic etiologies across phenotypes. Exploring pairwise genetic correlations between lung cancer and other polygenic traits can reveal the common genetic etiology of correlated phenotypes. METHODS Using cross-trait linkage disequilibrium score regression, we estimated the pairwise genetic correlation and heritability between lung cancer and multiple traits using publicly available summary statistics. Identified genetic relationships were also examined after excluding genomic regions known to be associated with smoking behaviors, a major risk factor for lung cancer. RESULTS We observed several traits showing moderate single nucleotide polymorphism-based heritability and significant genetic correlations with lung cancer. We observed highly significant correlations between the genetic architectures of lung cancer and emphysema/chronic bronchitis across all histologic subtypes, as well as among lung cancer occurring among smokers. Our analyses revealed highly significant positive correlations between lung cancer and paternal history of lung cancer. We also observed a strong negative correlation with parental longevity. We observed consistent directions in genetic patterns after excluding genomic regions associated with smoking behaviors. CONCLUSIONS This study identifies numerous phenotypic traits that share genomic architecture with lung carcinogenesis and are not fully accounted for by known smoking-associated genomic loci. IMPACT These findings provide new insights into the etiology of lung cancer by identifying traits that are genetically correlated with increased risk of lung cancer.
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Affiliation(s)
- Jinyoung Byun
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, Texas
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Younghun Han
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, Texas
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Quinn T Ostrom
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Jacob Edelson
- Department of Medicine, Center for Biomedical Informatics Research, Stanford University, Stanford, California
| | - Kyle M Walsh
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina
| | - Rowland W Pettit
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, Texas
| | - Melissa L Bondy
- Department of Epidemiology and Population Health, School of Medicine, Stanford University, Stanford, California
| | - Rayjean J Hung
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada
- Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Canada
| | - James D McKay
- Section of Genetics, International Agency for Research on Cancer, World Health Organization, Lyon, France
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Musolf AM, Simpson CL, Moiz BA, Pikielny CW, Middlebrooks CD, Mandal D, de Andrade M, Cole MD, Gaba C, Yang P, You M, Li Y, Kupert EY, Anderson MW, Schwartz AG, Pinney SM, Amos CI, Bailey-Wilson JE. Genetic Variation and Recurrent Haplotypes on Chromosome 6q23-25 Risk Locus in Familial Lung Cancer. Cancer Res 2021; 81:3162-3173. [PMID: 33853833 DOI: 10.1158/0008-5472.can-20-3196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 02/01/2021] [Accepted: 04/09/2021] [Indexed: 11/16/2022]
Abstract
Although lung cancer is known to be caused by environmental factors, it has also been shown to have genetic components, and the genetic etiology of lung cancer remains understudied. We previously identified a lung cancer risk locus on 6q23-25 using microsatellite data in families with a history of lung cancer. To further elucidate that signal, we performed targeted sequencing on nine of our most strongly linked families. Two-point linkage analysis of the sequencing data revealed that the signal was heterogeneous and that different families likely had different risk variants. Three specific haplotypes were shared by some of the families: 6q25.3-26 in families 42 and 44, 6q25.2-25.3 in families 47 and 59, and 6q24.2-25.1 in families 30, 33, and 35. Region-based logarithm of the odds scores and expression data identified the likely candidate genes for each haplotype overlap: ARID1B at 6q25.3, MAP3K4 at 6q26, and UTRN (6q24.1) and PHACTR2 (6q24.2). Further annotation was used to zero in on potential risk variants in those genes. All four genes are good candidate genes for lung cancer risk, having been linked to either lung cancer specifically or other cancers. However, this is the first time any of these genes has been implicated in germline risk. Functional analysis of these four genes is planned for future work. SIGNIFICANCE: This study identifies four genes associated with lung cancer risk, which could help guide future lung cancer prevention and treatment approaches.
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Affiliation(s)
- Anthony M Musolf
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland
| | - Claire L Simpson
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland.,Department of Genetics, Genomics and Informatics and Department of Ophthalmology, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Bilal A Moiz
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland
| | | | - Candace D Middlebrooks
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland
| | - Diptasri Mandal
- Department of Genetics, Louisiana State University Health Science Center, New Orleans, Louisiana
| | | | - Michael D Cole
- Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire
| | - Colette Gaba
- Department of Medicine, University of Toledo Dana Cancer Center, Toledo, Ohio
| | | | - Ming You
- Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Yafang Li
- Baylor College of Medicine, Houston, Texas
| | | | | | - Ann G Schwartz
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan
| | - Susan M Pinney
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | | | - Joan E Bailey-Wilson
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland.
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Lebrett MB, Crosbie EJ, Smith MJ, Woodward ER, Evans DG, Crosbie PAJ. Targeting lung cancer screening to individuals at greatest risk: the role of genetic factors. J Med Genet 2021; 58:217-226. [PMID: 33514608 PMCID: PMC8005792 DOI: 10.1136/jmedgenet-2020-107399] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 12/24/2022]
Abstract
Lung cancer (LC) is the most common global cancer. An individual’s risk of developing LC is mediated by an array of factors, including family history of the disease. Considerable research into genetic risk factors for LC has taken place in recent years, with both low-penetrance and high-penetrance variants implicated in increasing or decreasing a person’s risk of the disease. LC is the leading cause of cancer death worldwide; poor survival is driven by late onset of non-specific symptoms, resulting in late-stage diagnoses. Evidence for the efficacy of screening in detecting cancer earlier, thereby reducing lung-cancer specific mortality, is now well established. To ensure the cost-effectiveness of a screening programme and to limit the potential harms to participants, a risk threshold for screening eligibility is required. Risk prediction models (RPMs), which provide an individual’s personal risk of LC over a particular period based on a large number of risk factors, may improve the selection of high-risk individuals for LC screening when compared with generalised eligibility criteria that only consider smoking history and age. No currently used RPM integrates genetic risk factors into its calculation of risk. This review provides an overview of the evidence for LC screening, screening related harms and the use of RPMs in screening cohort selection. It gives a synopsis of the known genetic risk factors for lung cancer and discusses the evidence for including them in RPMs, focusing in particular on the use of polygenic risk scores to increase the accuracy of targeted lung cancer screening.
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Affiliation(s)
- Mikey B Lebrett
- Division of Infection, Immunity and Respiratory Medicine, The University of Manchester Faculty of Biology Medicine and Health, Manchester, UK.,Prevention and Early Detection Theme, NIHR Manchester Biomedical Research Centre, Manchester, UK
| | - Emma J Crosbie
- Prevention and Early Detection Theme, NIHR Manchester Biomedical Research Centre, Manchester, UK.,Division of Cancer Sciences, The University of Manchester Faculty of Biology Medicine and Health, Manchester, UK
| | - Miriam J Smith
- Prevention and Early Detection Theme, NIHR Manchester Biomedical Research Centre, Manchester, UK.,Manchester Centre for Genomic Medicine, St Mary's Hospital, Division of Evolution and Genomic Sciences, School of Biological Sciences, University of Manchester, Manchester, UK
| | - Emma R Woodward
- Prevention and Early Detection Theme, NIHR Manchester Biomedical Research Centre, Manchester, UK.,Manchester Centre for Genomic Medicine, St Mary's Hospital, Division of Evolution and Genomic Sciences, School of Biological Sciences, University of Manchester, Manchester, UK
| | - D Gareth Evans
- Prevention and Early Detection Theme, NIHR Manchester Biomedical Research Centre, Manchester, UK.,Manchester Centre for Genomic Medicine, St Mary's Hospital, Division of Evolution and Genomic Sciences, School of Biological Sciences, University of Manchester, Manchester, UK
| | - Philip A J Crosbie
- Division of Infection, Immunity and Respiratory Medicine, The University of Manchester Faculty of Biology Medicine and Health, Manchester, UK .,Prevention and Early Detection Theme, NIHR Manchester Biomedical Research Centre, Manchester, UK.,Manchester Thoracic Oncology Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
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10
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Association between Risk Factors and the Existence of Lung Malignancies in a Population from the South-West Romania: A Single-Center Study. CURRENT HEALTH SCIENCES JOURNAL 2021; 47:485-493. [PMID: 35444830 PMCID: PMC8987467 DOI: 10.12865/chsj.47.04.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/20/2021] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Lung cancer, one of the most prominent malignancies of today worldwide, affects mainly men; however, recently women have also been increasingly afflicted by the disease. Our aim was to retrospectively analyze a series of potential risk factors for the disease and their potential to affect both genders. METHODS Our retrospective study relied on anonymized data collected between 2017 and 2020 at a single hospital specialized on lung diseases. After receiving ethical clearance, data pertaining to risk factors as well as statistical aspects of the lot were recorded and analyzed. RESULTS We found 493 patients (398 men) aged between 31 and 90 years (median 67) who were found with lung tumors and selected a matched cohort of patients with other diseases. We found positive associations between the presence of smoking, COPD, or pollution and the occurrence of lung cancer. Almost all lung cancer patients presented different significant associated diseases. Family history also favored the appearance of lung cancer. CONCLUSION Several risk factors remain high in lung tumor patients, and rapid measures to diminish the impact of such factors are needed in order to decrease the overall incidence of this pathology.
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Hong J, Davoudi A, Yu S, Mowery DL. Annotation and extraction of age and temporally-related events from clinical histories. BMC Med Inform Decis Mak 2020; 20:338. [PMID: 33380319 PMCID: PMC7772895 DOI: 10.1186/s12911-020-01333-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 11/16/2020] [Indexed: 01/13/2023] Open
Abstract
Background Age and time information stored within the histories of clinical notes can provide valuable insights for assessing a patient’s disease risk, understanding disease progression, and studying therapeutic outcomes. However, details of age and temporally-specified clinical events are not well captured, consistently codified, and readily available to research databases for study. Methods We expanded upon existing annotation schemes to capture additional age and temporal information, conducted an annotation study to validate our expanded schema, and developed a prototypical, rule-based Named Entity Recognizer to extract our novel clinical named entities (NE). The annotation study was conducted on 138 discharge summaries from the pre-annotated 2014 ShARe/CLEF eHealth Challenge corpus. In addition to existing NE classes (TIMEX3, SUBJECT_CLASS, DISEASE_DISORDER), our schema proposes 3 additional NEs (AGE, PROCEDURE, OTHER_EVENTS). We also propose new attributes, e.g., “degree_relation” which captures the degree of biological relation for subjects annotated under SUBJECT_CLASS. As a proof of concept, we applied the schema to 49 H&P notes to encode pertinent history information for a lung cancer cohort study. Results An abundance of information was captured under the new OTHER_EVENTS, PROCEDURE and AGE classes, with 23%, 10% and 8% of all annotated NEs belonging to the above classes, respectively. We observed high inter-annotator agreement of >80% for AGE and TIMEX3; the automated NLP system achieved F1 scores of 86% (AGE) and 86% (TIMEX3). Age and temporally-specified mentions within past medical, family, surgical, and social histories were common in our lung cancer data set; annotation is ongoing to support this translational research study. Conclusions Our annotation schema and NLP system can encode historical events from clinical notes to support clinical and translational research studies.
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Affiliation(s)
- Judy Hong
- Department of Life Sciences and Management, University of Pennsylvania, 425 S. University Ave, Levin 101, Philadelphia, PA, 19104, USA
| | - Anahita Davoudi
- Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, 3700 Hamilton Walk, Philadelphia, PA, 19104, USA
| | - Shun Yu
- Division of Hematology and Oncology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA
| | - Danielle L Mowery
- Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, 3700 Hamilton Walk, Philadelphia, PA, 19104, USA. .,Institute for Biomedical Informatics, University of Pennsylvania, 3700 Hamilton Walk, Philadelphia, PA, 19104, USA.
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12
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Mederos N, Friedlaender A, Peters S, Addeo A. Gender-specific aspects of epidemiology, molecular genetics and outcome: lung cancer. ESMO Open 2020; 5:e000796. [PMID: 33148544 PMCID: PMC7643520 DOI: 10.1136/esmoopen-2020-000796] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 09/05/2020] [Accepted: 09/12/2020] [Indexed: 12/13/2022] Open
Abstract
Lung cancer remains the leading cause of cancer-related deaths worldwide in women and men. In incidence, lung cancer ranks second, surpassed by breast cancer in women and prostate cancer in men. However, the historical differences in mortality and incidence rate between both sexes have changed in the last years. In the last decades, we have also witnessed an increased number of lung cancer in female never-smokers. These disparities have grown our interest in studying the impact of the gender and sex in the presentation of lung cancer. The aetiology is yet to be fully elucidated, but the data are clear so far: there is a growing divide between lung cancer presentation in women and men that will change our management and study of lung cancer. This article aims to review the sex and gender differences in lung cancer.
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Affiliation(s)
- Nuria Mederos
- Department of Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
| | - Alex Friedlaender
- Department of Oncology, Hopitaux Universitaires de Geneve, Geneva, Switzerland
| | - Solange Peters
- Department of Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Alfredo Addeo
- Department of Oncology, Hopitaux Universitaires de Geneve, Geneva, Switzerland
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13
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Burgess JT, Bolderson E, Adams MN, Duijf PHG, Zhang SD, Gray SG, Wright G, Richard DJ, O'Byrne KJ. SASH1 is a prognostic indicator and potential therapeutic target in non-small cell lung cancer. Sci Rep 2020; 10:18605. [PMID: 33122723 PMCID: PMC7596716 DOI: 10.1038/s41598-020-75625-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 10/16/2020] [Indexed: 12/17/2022] Open
Abstract
SASH1 (SAM and SH3 domain-containing protein 1) is a tumor suppressor protein that has roles in key cellular processes including apoptosis and cellular proliferation. As these cellular processes are frequently disrupted in human tumours and little is known about the role of SASH1 in the pathogenesis of the disease, we analysed the prognostic value of SASH1 in non-small cell lung cancers using publicly available datasets. Here, we show that low SASH1 mRNA expression is associated with poor survival in adenocarcinoma. Supporting this, modulation of SASH1 levels in a panel of lung cancer cell lines mediated changes in cellular proliferation and sensitivity to cisplatin. The treatment of lung cancer cells with chloropyramine, a compound that increases SASH1 protein concentrations, reduced cellular proliferation and increased sensitivity to cisplatin in a SASH1-dependent manner. In summary, compounds that increase SASH1 protein levels could represent a novel approach to treat NSCLC and warrant further study.
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Affiliation(s)
- Joshua T Burgess
- Cancer and Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Queensland University of Technology, 37 Kent Street Woolloongabba, Brisbane, 4102, Australia.
| | - Emma Bolderson
- Cancer and Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Queensland University of Technology, 37 Kent Street Woolloongabba, Brisbane, 4102, Australia.
- Princess Alexandra Hospital, Ipswich Road, Woolloongabba, Brisbane, QLD, 4102, Australia.
| | - Mark N Adams
- Cancer and Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Queensland University of Technology, 37 Kent Street Woolloongabba, Brisbane, 4102, Australia
| | - Pascal H G Duijf
- Cancer and Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Queensland University of Technology, 37 Kent Street Woolloongabba, Brisbane, 4102, Australia
- University of Queensland Diamantina Institute, The University of Queensland, Translational Research Institute (TRI), Brisbane, Australia
| | - Shu-Dong Zhang
- Northern Ireland Centre for Stratified Medicine, University of Ulster, C-TRIC Building, Altnagelvin Hospital Campus, Glenshane Road, Londonderry, BT47 6SB, UK
- Center for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, UK
| | - Steven G Gray
- Thoracic Oncology Research Group, Institute of Molecular Medicine, Trinity College Dublin, Dublin, Ireland
- HOPE Directorate, St. James Hospital, Dublin 8, Ireland
| | - Gavin Wright
- Department of Surgery, St Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia
| | - Derek J Richard
- Cancer and Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Queensland University of Technology, 37 Kent Street Woolloongabba, Brisbane, 4102, Australia
| | - Kenneth J O'Byrne
- Cancer and Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Queensland University of Technology, 37 Kent Street Woolloongabba, Brisbane, 4102, Australia.
- Princess Alexandra Hospital, Ipswich Road, Woolloongabba, Brisbane, QLD, 4102, Australia.
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14
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Schabath MB, Cote ML. Cancer Progress and Priorities: Lung Cancer. Cancer Epidemiol Biomarkers Prev 2020; 28:1563-1579. [PMID: 31575553 DOI: 10.1158/1055-9965.epi-19-0221] [Citation(s) in RCA: 370] [Impact Index Per Article: 92.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/23/2019] [Accepted: 08/09/2019] [Indexed: 01/02/2023] Open
Affiliation(s)
- Matthew B Schabath
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida. .,Department of Thoracic Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Michele L Cote
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan.,Barbara Ann Karmanos Cancer Institute, Detroit, Michigan
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15
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Ang L, Chan CPY, Yau WP, Seow WJ. Association between family history of lung cancer and lung cancer risk: a systematic review and meta-analysis. Lung Cancer 2020; 148:129-137. [PMID: 32892102 DOI: 10.1016/j.lungcan.2020.08.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/12/2020] [Accepted: 08/17/2020] [Indexed: 12/26/2022]
Abstract
BACKGROUND Familial risk of lung cancer has been widely studied but the effects of sociodemographic factors and geographical regions are largely unknown. METHODS PubMed and Embase were systematically searched until 1st October 2019. A total of 84 articles were identified and (19 cohort and 66 case control studies) included in this systematic review and meta-analysis. Pooled summary estimates and 95% confidence intervals were estimated, and the analysis was stratified by sociodemographic factors and geographical regions. RESULTS Geographical regions, sex, age of proband, smoking status, type of first-degree relatives, number of affected relatives, and early onset of lung cancer in affected relatives were significant determinants of familial risk of lung cancer. Higher risk of familial lung cancer was found among Asians as compared to non-Asians, younger individuals (age≤50) as compared with older individuals (age>50), individuals with ≥2 affected relatives as compared with individuals with one affected relative, ever-smokers as compared with never-smokers, Asian females as compared with Western females, and never-smokers in Asia as compared with never-smokers in the West. CONCLUSIONS Familial risk of lung cancer is influenced by both genetic and environmental factors. Future studies should control for environmental factors such as air pollution and environmental tobacco smoke which are prevalent in Asia.
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Affiliation(s)
- Lina Ang
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
| | - Cheryl Pui Yi Chan
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Wai-Ping Yau
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Wei Jie Seow
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore.
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16
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Trujillo-Reyes JC, Seijo L, Martínez-Tellez E, Couñago F. Lung cancer screening, what has changed after the latest evidence? World J Radiol 2020; 12:130-136. [PMID: 32850015 PMCID: PMC7422527 DOI: 10.4329/wjr.v12.i7.130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/11/2020] [Accepted: 07/01/2020] [Indexed: 02/06/2023] Open
Abstract
Lung cancer (LC) is still one of the most frequent cancers with a high related mortality. Their prognosis is directly proportional to the stage at the time of diagnosis. Seventy percent are currently diagnosed in advanced or locally advanced stage (higher than stage III), making a cure unlikely for the majority of patients. Developments in LC treatment are significant however they do not seem to be enough to reverse the current situation, at least, in a short period of time. Despite recent advances in treatment, primary prevention and early diagnosis appear to be the key to reduce the incidence and mortality of this disease. Many countries have developed LC screening programs based on the results of clinical trials published in recent years. The aim of this paper is to review the latest results of the NEderlands Leuvens Longkanker Screenings Onderzoek and compare them with the findings of the National Lung Screening Trial. We address the question whether it is necessary to continue discussing the evidence regarding LC screening. In both trials, there is a clear impact on LC mortality but, with a modest reduction in over all mortality. Undoubtedly, the benefit of screening can be expected to grow as low-dose computed tomographys are performed over longer periods of time.
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Affiliation(s)
- Juan Carlos Trujillo-Reyes
- Department of Thoracic Surgery, Hospital de la Santa Creu I Sant Pau, Barcelona 08029, Spain
- Department of Surgery, Universitat Autonoma de Barcelona, Barcelona 08029, Spain
| | - Luis Seijo
- Department of Pneumology, Clinica Universitaria de Navarra, Madrid 28029, Spain
| | - Elisabeth Martínez-Tellez
- Department of Thoracic Surgery, Hospital de la Santa Creu I Sant Pau, Barcelona 08029, Spain
- Department of Surgery, Universitat Autonoma de Barcelona, Barcelona 08029, Spain
| | - Felipe Couñago
- Department of Radiation Oncology, Hospital Universitario Quirónsalud Madrid, Madrid 28223, Spain
- Universidad Europea de Madrid, Madrid 28223, Spain
- Department of Radiation Oncology, Hospital La Luz, Madrid 28003, Spain
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17
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do-Amaral C, Pacheco B, Seixas F, Pereira C, Collares T. Antitumoral effects of fucoidan on bladder cancer. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101884] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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18
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Li N, Liu Q, Xiong Y, Yu J. Headcase and Unkempt Regulate Tissue Growth and Cell Cycle Progression in Response to Nutrient Restriction. Cell Rep 2020; 26:733-747.e3. [PMID: 30650363 PMCID: PMC6350942 DOI: 10.1016/j.celrep.2018.12.086] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/24/2018] [Accepted: 12/19/2018] [Indexed: 11/26/2022] Open
Abstract
Nutrient restriction (NR) decreases the incidence and growth of many types of tumors, yet the underlying mechanisms are not fully understood. In this study, we identified Headcase (Hdc) and Unkempt (Unk) as two NR-specific tumor suppressor proteins that form a complex to restrict cell cycle progression and tissue growth in response to NR in Drosophila. Loss of Hdc or Unk does not confer apparent growth advantage under normal nutrient conditions but leads to accelerated cell cycle progression and tissue overgrowth under NR. Hdc and Unk bind to the TORC1 component Raptor and preferentially regulate S6 phosphorylation in a TORC1-dependent manner. We further show that HECA and UNK, the human counterparts of Drosophila Hdc and Unk, respectively, have a conserved function in regulating S6 phosphorylation and tissue growth. The identification of Hdc and Unk as two NR-specific tumor suppressors provides insight into molecular mechanisms underlying the anti-tumorigenic effects of NR. The molecular mechanisms underlying nutrient restriction resistance remain unclear. Li et al. find that Hdc and Unk function in the mTOR signaling pathway to restrict tissue growth and cell cycle progression in response to nutrient restriction.
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Affiliation(s)
- Naren Li
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA
| | - Qinfang Liu
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA
| | - Yulan Xiong
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA.
| | - Jianzhong Yu
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA.
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19
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An Unusual Occurrence of Multiple Metachronous and Synchronous Primary Cancers in a Female Patient. Case Rep Oncol Med 2020; 2020:5691732. [PMID: 32148985 PMCID: PMC7049841 DOI: 10.1155/2020/5691732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 05/23/2019] [Accepted: 02/06/2020] [Indexed: 12/25/2022] Open
Abstract
Multiple primary cancers, although uncommon, have been increasing in incidence in recent years. This trend is likely due to advances in factors such as diagnostic imaging, life expectancy, and interventional modalities with associated adverse effects. The patient presented in this case report is a 59-year-old Caucasian female with an extensive medical history who developed multiple primary cancers of the breast, mouth, gastrointestinal system, and lung in the span of four years. We attempted to elucidate the possible etiologies and risk factors that may have contributed. Given the patient's complex medical and social history, interventions, environmental, and genetic predispositions, it is impossible to pinpoint a single etiology. Rather, it is more likely that the interplay of multiple factors contributed to the findings of this case.
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20
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de Alencar VTL, Formiga MN, de Lima VCC. Inherited lung cancer: a review. Ecancermedicalscience 2020; 14:1008. [PMID: 32104210 PMCID: PMC7039693 DOI: 10.3332/ecancer.2020.1008] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Indexed: 12/17/2022] Open
Abstract
Lung cancer is the most common cancer worldwide and has high rates of mortality. The major risk factor associated with this disease is tobacco smoke, but approximately 10%-25% of all lung cancer cases occur in patients who have never smoked. Data suggest that lung cancer in never-smokers has a different molecular profile, tumour microenvironment and epidemiology than that in smokers. Several risk factors have been associated with its occurrence, and the possibility of inherited predisposition is becoming clearer. A better understanding of this disease is essential for the future development of personalised screening, diagnosis and treatment approaches, with consequent reduction of mortality. In this review, we discuss historical studies of lung cancer in never-smokers and the currently available evidence of inherited predisposition to this disease.
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Affiliation(s)
| | - Maria Nirvana Formiga
- AC Camargo Cancer Center, R Prof Antônio Prudente, 211 São Paulo, SP 01509-010, Brazil
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21
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Musolf AM, Moiz BA, Sun H, Pikielny CW, Bossé Y, Mandal D, de Andrade M, Gaba C, Yang P, Li Y, You M, Govindan R, Wilson RK, Kupert EY, Anderson MW, Schwartz AG, Pinney SM, Amos CI, Bailey-Wilson JE. Whole Exome Sequencing of Highly Aggregated Lung Cancer Families Reveals Linked Loci for Increased Cancer Risk on Chromosomes 12q, 7p, and 4q. Cancer Epidemiol Biomarkers Prev 2019; 29:434-442. [PMID: 31826912 DOI: 10.1158/1055-9965.epi-19-0887] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/15/2019] [Accepted: 12/04/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Lung cancer kills more people than any other cancer in the United States. In addition to environmental factors, lung cancer has genetic risk factors as well, though the genetic etiology is still not well understood. We have performed whole exome sequencing on 262 individuals from 28 extended families with a family history of lung cancer. METHODS Parametric genetic linkage analysis was performed on these samples using two distinct analyses-the lung cancer only (LCO) analysis, where only patients with lung cancer were coded as affected, and the all aggregated cancers (AAC) analysis, where other cancers seen in the pedigree were coded as affected. RESULTS The AAC analysis yielded a genome-wide significant result at rs61943670 in POLR3B at 12q23.3. POLR3B has been implicated somatically in lung cancer, but this germline finding is novel and is a significant expression quantitative trait locus in lung tissue. Interesting genome-wide suggestive haplotypes were also found within individual families, particularly near SSPO at 7p36.1 in one family and a large linked haplotype spanning 4q21.3-28.3 in a different family. The 4q haplotype contains potential causal rare variants in DSPP at 4q22.1 and PTPN13 at 4q21.3. CONCLUSIONS Regions on 12q, 7p, and 4q are linked to increased cancer risk in highly aggregated lung cancer families, 12q across families and 7p and 4q within a single family. POLR3B, SSPO, DSPP, and PTPN13 are currently the best candidate genes. IMPACT Functional work on these genes is planned for future studies and if confirmed would lead to potential biomarkers for risk in cancer.
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Affiliation(s)
- Anthony M Musolf
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland
| | - Bilal A Moiz
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland
| | - Haiming Sun
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland.,Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
| | | | - Yohan Bossé
- Institut universitaire de cardiologie et de pneumologie de Québec, Department of Molecular Medicine, Laval University, Québec, Québec, Canada
| | - Diptasri Mandal
- Department of Genetics, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | | | - Colette Gaba
- Department of Medicine, University of Toledo Dana Cancer Center, Toledo, Ohio
| | | | - Yafang Li
- Baylor College of Medicine, Houston, Texas
| | - Ming You
- Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Ramaswamy Govindan
- Division of Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Richard K Wilson
- Institute for Genomic Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | | | | | - Ann G Schwartz
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan
| | - Susan M Pinney
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | | | - Joan E Bailey-Wilson
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland.
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22
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Kolishovski G, Lamoureux A, Hale P, Richardson JE, Recla JM, Adesanya O, Simons A, Kunde-Ramamoorthy G, Bult CJ. The JAX Synteny Browser for mouse-human comparative genomics. Mamm Genome 2019; 30:353-361. [PMID: 31776723 PMCID: PMC6892358 DOI: 10.1007/s00335-019-09821-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 11/20/2019] [Indexed: 10/30/2022]
Abstract
Visualizing regions of conserved synteny between two genomes is supported by numerous software applications. However, none of the current applications allow researchers to select genome features to display or highlight in blocks of synteny based on the annotated biological properties of the features (e.g., type, function, and/or phenotype association). To address this usability gap, we developed an interactive web-based conserved synteny browser, The Jackson Laboratory (JAX) Synteny Browser. The browser allows researchers to highlight or selectively display genome features in the reference and/or the comparison genome according to the biological attributes of the features. Although the current implementation for the browser is limited to the reference genomes for the laboratory mouse and human, the software platform is intentionally genome agnostic. The JAX Synteny Browser software can be deployed for any two genomes where genome coordinates for syntenic blocks are defined and for which biological attributes of the features in one or both genomes are available in widely used standard bioinformatics file formats. The JAX Synteny Browser is available at: http://syntenybrowser.jax.org/. The code base is available from GitHub: https://github.com/TheJacksonLaboratory/syntenybrowser and is distributed under the Creative Commons Attribution license (CC BY).
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Affiliation(s)
- Georgi Kolishovski
- The Jackson Laboratory for Mammalian Genomics, Bar Harbor, ME, 04609, USA
| | - Anna Lamoureux
- The Jackson Laboratory for Mammalian Genomics, Bar Harbor, ME, 04609, USA
| | - Paul Hale
- The Jackson Laboratory for Mammalian Genomics, Bar Harbor, ME, 04609, USA
| | - Joel E Richardson
- The Jackson Laboratory for Mammalian Genomics, Bar Harbor, ME, 04609, USA
| | - Jill M Recla
- The Jackson Laboratory for Mammalian Genomics, Bar Harbor, ME, 04609, USA
| | - Omoluyi Adesanya
- The Jackson Laboratory for Mammalian Genomics, Bar Harbor, ME, 04609, USA
- Institute of Public Health, Washington University of St. Louis, St. Louis, MO, 63110, USA
| | - Al Simons
- The Jackson Laboratory for Mammalian Genomics, Bar Harbor, ME, 04609, USA
| | | | - Carol J Bult
- The Jackson Laboratory for Mammalian Genomics, Bar Harbor, ME, 04609, USA.
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23
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Parris BA, O'Farrell HE, Fong KM, Yang IA. Chronic obstructive pulmonary disease (COPD) and lung cancer: common pathways for pathogenesis. J Thorac Dis 2019; 11:S2155-S2172. [PMID: 31737343 DOI: 10.21037/jtd.2019.10.54] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) and lung cancer comprise the leading causes of lung disease-related mortality worldwide. Exposure to tobacco smoke is a mutual aetiology underlying the two diseases, accounting for almost 90% of cases. There is accumulating evidence supporting the role of immune dysfunction, the lung microbiome, extracellular vesicles and underlying genetic susceptibility in the development of COPD and lung cancer. Further, epigenetic factors, involving DNA methylation and microRNA expression, have been implicated in both diseases. Chronic inflammation is a key feature of COPD and could be a potential driver of lung cancer development. Using next generation technologies, further studies investigating the genomics, epigenetics and gene-environment interaction in key molecular pathways will continue to elucidate the pathogenic mechanisms underlying the development of COPD and lung cancer, and contribute to the development of novel diagnostic and prognostic tools for early intervention and personalised therapeutic strategies.
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Affiliation(s)
- Brielle A Parris
- UQ Thoracic Research Centre, The Prince Charles Hospital, University of Queensland, Brisbane, Australia
| | - Hannah E O'Farrell
- UQ Thoracic Research Centre, The Prince Charles Hospital, University of Queensland, Brisbane, Australia
| | - Kwun M Fong
- UQ Thoracic Research Centre, The Prince Charles Hospital, University of Queensland, Brisbane, Australia.,Department of Thoracic Medicine, The Prince Charles Hospital, Metro North Hospital and Health Service, Brisbane, Australia
| | - Ian A Yang
- UQ Thoracic Research Centre, The Prince Charles Hospital, University of Queensland, Brisbane, Australia.,Department of Thoracic Medicine, The Prince Charles Hospital, Metro North Hospital and Health Service, Brisbane, Australia
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24
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Wood DE, Kazerooni EA, Baum SL, Eapen GA, Ettinger DS, Hou L, Jackman DM, Klippenstein D, Kumar R, Lackner RP, Leard LE, Lennes IT, Leung ANC, Makani SS, Massion PP, Mazzone P, Merritt RE, Meyers BF, Midthun DE, Pipavath S, Pratt C, Reddy C, Reid ME, Rotter AJ, Sachs PB, Schabath MB, Schiebler ML, Tong BC, Travis WD, Wei B, Yang SC, Gregory KM, Hughes M. Lung Cancer Screening, Version 3.2018, NCCN Clinical Practice Guidelines in Oncology. J Natl Compr Canc Netw 2019; 16:412-441. [PMID: 29632061 DOI: 10.6004/jnccn.2018.0020] [Citation(s) in RCA: 370] [Impact Index Per Article: 74.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lung cancer is the leading cause of cancer-related mortality in the United States and worldwide. Early detection of lung cancer is an important opportunity for decreasing mortality. Data support using low-dose computed tomography (LDCT) of the chest to screen select patients who are at high risk for lung cancer. Lung screening is covered under the Affordable Care Act for individuals with high-risk factors. The Centers for Medicare & Medicaid Services (CMS) covers annual screening LDCT for appropriate Medicare beneficiaries at high risk for lung cancer if they also receive counseling and participate in shared decision-making before screening. The complete version of the NCCN Guidelines for Lung Cancer Screening provides recommendations for initial and subsequent LDCT screening and provides more detail about LDCT screening. This manuscript focuses on identifying patients at high risk for lung cancer who are candidates for LDCT of the chest and on evaluating initial screening findings.
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25
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Wang P, Zhu M, Zhang D, Guo XG, Zhao S, Zhang XL, Wang DL, Liu CT. The relationship between chronic obstructive pulmonary disease and non-small cell lung cancer in the elderly. Cancer Med 2019; 8:4124-4134. [PMID: 31184445 PMCID: PMC6675702 DOI: 10.1002/cam4.2333] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 04/19/2019] [Accepted: 05/24/2019] [Indexed: 12/24/2022] Open
Abstract
Objectives Chronic obstructive pulmonary disease (COPD) and NSCLC often coexist and have poor prognoses, but studies investigating the impact of COPD on NSCLC have reported inconsistent findings. The objective of this study was to compare survival between NSCLC patients with and without COPD. Methods Medical records were retrospectively collected from 301 elderly patients pathologically diagnosed with NSCLC from the Chinese PLA General Hospital. Ultimately, a total of 200 patients were enrolled in the analysis. The survival rates between the COPD‐NSCLC and non‐COPD NSCLC were assessed using log‐rank and Cox proportional hazard regression analyses. Results A total of 117 COPD‐NSCLC and 93 non‐COPD NSCLC patients were enrolled in the analysis. The median overall survival times were 108.5 months in the non‐COPD group and 45.0 months in the COPD group (HR: 2.05; 95% CI, 1.36‐2.97, P = 0.0004). After 118 patients underwent propensity score matching, the median overall survival times were 100.6 months in the non‐COPD group and 51.9 months in the COPD group (HR: 1.59; 95% CI, 1.096‐2.64, P = 0.0459). The multivariate analysis showed that presence of COPD (HR 1.619, P = 0.030), old age (HR 1.007, P < 00001), an advanced disease stage (stage Ⅲ HR 5.513, P < 0.0001; stage Ⅳ HR 11.743, P < 0.0001), the squamous cell carcinoma histological subtype (HR 3.106, P < 0.0001), the presence of a cough (HR 2.463, P = 0.001) a higher serum carcinoembryonic antigen level (HR 1.001, P = 0.023) and higher NRL (HR 2.615, P = 0.007) were independent factors that were significantly associated with poorer survival. Conclusion A diagnosis of COPD had significant poorer survival outcomes in NSCLC than that of patients without COPD in this elderly population.
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Affiliation(s)
- Peng Wang
- Department of Medical Oncology, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Min Zhu
- Department of Medical Oncology, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Dong Zhang
- Department of Medical Oncology, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Xue-Guang Guo
- Department of Medical Oncology, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Shu Zhao
- Department of Medical Oncology, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Xue-Lin Zhang
- Department of Respiratory Diseases, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - De-Long Wang
- Department of Respiratory Diseases, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Chang-Ting Liu
- Department of Respiratory Diseases, The Second Medical Centre, Chinese People's Liberation Army General Hospital, Beijing, China
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Byun J, Schwartz AG, Lusk C, Wenzlaff AS, de Andrade M, Mandal D, Gaba C, Yang P, You M, Kupert EY, Anderson MW, Han Y, Li Y, Qian D, Stilp A, Laurie C, Nelson S, Zheng W, Hung RJ, Gaborieau V, Mckay J, Brennan P, Caporaso NE, Landi MT, Wu X, McLaughlin JR, Brhane Y, Bossé Y, Pinney SM, Bailey-Wilson JE, Amos CI. Genome-wide association study of familial lung cancer. Carcinogenesis 2018; 39:1135-1140. [PMID: 29924316 PMCID: PMC6148967 DOI: 10.1093/carcin/bgy080] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 04/12/2018] [Accepted: 06/18/2018] [Indexed: 12/27/2022] Open
Abstract
To identify genetic variation associated with lung cancer risk, we performed a genome-wide association analysis of 685 lung cancer cases that had a family history of two or more first or second degree relatives compared with 744 controls without lung cancer that were genotyped on an Illumina Human OmniExpressExome-8v1 array. To ensure robust results, we further evaluated these findings using data from six additional studies that were assembled through the Transdisciplinary Research on Cancer of the Lung Consortium comprising 1993 familial cases and 33 690 controls. We performed a meta-analysis after imputation of all variants using the 1000 Genomes Project Phase 1 (version 3 release date September 2013). Analyses were conducted for 9 327 222 SNPs integrating data from the two sources. A novel variant on chromosome 4p15.31 near the LCORL gene and an imputed rare variant intergenic between CDKN2A and IFNA8 on chromosome 9p21.3 were identified at a genome-wide level of significance for squamous cell carcinomas. Additionally, associations of CHRNA3 and CHRNA5 on chromosome 15q25.1 in sporadic lung cancer were confirmed at a genome-wide level of significance in familial lung cancer. Previously identified variants in or near CHRNA2, BRCA2, CYP2A6 for overall lung cancer, TERT, SECISPB2L and RTEL1 for adenocarcinoma and RAD52 and MHC for squamous carcinoma were significantly associated with lung cancer.
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Affiliation(s)
- Jinyoung Byun
- Department of Biomedical Data Science, Dartmouth Geisel School of Medicine, Lebanon, NH, USA
| | - Ann G Schwartz
- Karmanos Cancer Institute, Wayne State University, Detroit, MI, USA
| | - Christine Lusk
- Karmanos Cancer Institute, Wayne State University, Detroit, MI, USA
| | | | - Mariza de Andrade
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Diptasri Mandal
- Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Colette Gaba
- University of Toledo Dana Cancer Center, Toledo, OH, USA
| | - Ping Yang
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Ming You
- Medical College of Wisconsin, Milwaukee, WI, USA
| | | | | | - Younghun Han
- Department of Biomedical Data Science, Dartmouth Geisel School of Medicine, Lebanon, NH, USA
| | - Yafang Li
- Department of Biomedical Data Science, Dartmouth Geisel School of Medicine, Lebanon, NH, USA
| | - David Qian
- Department of Biomedical Data Science, Dartmouth Geisel School of Medicine, Lebanon, NH, USA
| | - Adrienne Stilp
- Genetic Analysis Center, University of Washington, Seattle, WA, USA
| | - Cathy Laurie
- Genetic Analysis Center, University of Washington, Seattle, WA, USA
| | - Sarah Nelson
- Genetic Analysis Center, University of Washington, Seattle, WA, USA
| | - Wenying Zheng
- Genetic Analysis Center, University of Washington, Seattle, WA, USA
| | - Rayjean J Hung
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
| | - Valerie Gaborieau
- Genetic Epidemiology Group, International Agency for Research on Cancer (IARC), Lyon, France
| | - James Mckay
- Genetic Epidemiology Group, International Agency for Research on Cancer (IARC), Lyon, France
| | - Paul Brennan
- Genetic Epidemiology Group, International Agency for Research on Cancer (IARC), Lyon, France
| | - Neil E Caporaso
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Maria Teresa Landi
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Xifeng Wu
- Department of Epidemiology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Yonathan Brhane
- Genetic Analysis Center, University of Washington, Seattle, WA, USA
| | - Yohan Bossé
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Department of Molecular Medicine, Laval University, Québec, Canada
| | - Susan M Pinney
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Joan E Bailey-Wilson
- National Human Genome Research Institute, National Institutes of Health, Baltimore, MD, USA
| | - Christopher I Amos
- Department of Biomedical Data Science, Dartmouth Geisel School of Medicine, Lebanon, NH, USA
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, USA
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27
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Wang, DC, Wang, W, Zhu, B, Wang X. Lung Cancer Heterogeneity and New Strategies for Drug Therapy. Annu Rev Pharmacol Toxicol 2018; 58:531-546. [PMID: 28977762 DOI: 10.1146/annurev-pharmtox-010716-104523] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Diane C. Wang,
- Zhongshan Hospital Institute of Clinical Science, Shanghai Institute of Clinical Bioinformatics, Fudan University Center for Clinical Bioinformatics, Shanghai 200032, China
| | - William Wang,
- Zhongshan Hospital Institute of Clinical Science, Shanghai Institute of Clinical Bioinformatics, Fudan University Center for Clinical Bioinformatics, Shanghai 200032, China
| | - Bijun Zhu,
- Zhongshan Hospital Institute of Clinical Science, Shanghai Institute of Clinical Bioinformatics, Fudan University Center for Clinical Bioinformatics, Shanghai 200032, China
| | - Xiangdong Wang
- Zhongshan Hospital Institute of Clinical Science, Shanghai Institute of Clinical Bioinformatics, Fudan University Center for Clinical Bioinformatics, Shanghai 200032, China
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28
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Wang J, Liu Q, Yuan S, Xie W, Liu Y, Xiang Y, Wu N, Wu L, Ma X, Cai T, Zhang Y, Sun Z, Li Y. Genetic predisposition to lung cancer: comprehensive literature integration, meta-analysis, and multiple evidence assessment of candidate-gene association studies. Sci Rep 2017; 7:8371. [PMID: 28827732 PMCID: PMC5567126 DOI: 10.1038/s41598-017-07737-0] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 07/04/2017] [Indexed: 01/03/2023] Open
Abstract
More than 1000 candidate-gene association studies on genetic susceptibility to lung cancer have been published over the last two decades but with few consensuses for the likely culprits. We conducted a comprehensive review, meta-analysis and evidence strength evaluation of published candidate-gene association studies in lung cancer up to November 1, 2015. The epidemiological credibility of cumulative evidence was assessed using the Venice criteria. A total of 1018 publications with 2910 genetic variants in 754 different genes or chromosomal loci were eligible for inclusion. Main meta-analyses were performed on 246 variants in 138 different genes. Twenty-two variants from 21 genes (APEX1 rs1130409 and rs1760944, ATM rs664677, AXIN2 rs2240308, CHRNA3 rs6495309, CHRNA5 rs16969968, CLPTM1L rs402710, CXCR2 rs1126579, CYP1A1 rs4646903, CYP2E1 rs6413432, ERCC1 rs11615, ERCC2 rs13181, FGFR4 rs351855, HYKK rs931794, MIR146A rs2910164, MIR196A2 rs11614913, OGG1 rs1052133, PON1 rs662, REV3L rs462779, SOD2 rs4880, TERT rs2736098, and TP53 rs1042522) showed significant associations with lung cancer susceptibility with strong cumulative epidemiological evidence. No significant associations with lung cancer risk were found for other 150 variants in 98 genes; however, seven variants demonstrated strong cumulative evidence. Our findings provided the most updated summary of genetic risk effects on lung cancer and would help inform future research direction.
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Affiliation(s)
- Junjun Wang
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.,Center for Clinical Epidemiology and Evidence-Based Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - Qingyun Liu
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - Shuai Yuan
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - Weijia Xie
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - Yuan Liu
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - Ying Xiang
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.,Center for Clinical Epidemiology and Evidence-Based Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - Na Wu
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.,Center for Clinical Epidemiology and Evidence-Based Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - Long Wu
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.,Center for Clinical Epidemiology and Evidence-Based Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - Xiangyu Ma
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.,Center for Clinical Epidemiology and Evidence-Based Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - Tongjian Cai
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.,Center for Clinical Epidemiology and Evidence-Based Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - Yao Zhang
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.,Center for Clinical Epidemiology and Evidence-Based Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - Zhifu Sun
- Health Sciences Research, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Yafei Li
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China. .,Center for Clinical Epidemiology and Evidence-Based Medicine, Third Military Medical University, Chongqing, People's Republic of China.
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29
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Musolf AM, Simpson CL, de Andrade M, Mandal D, Gaba C, Yang P, Li Y, You M, Kupert EY, Anderson MW, Schwartz AG, Pinney SM, Amos CI, Bailey-Wilson JE. Parametric Linkage Analysis Identifies Five Novel Genome-Wide Significant Loci for Familial Lung Cancer. Hum Hered 2017; 82:64-74. [PMID: 28817824 DOI: 10.1159/000479028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 06/28/2017] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVE One of four American cancer patients dies of lung cancer. Environmental factors such as tobacco smoking are known to affect lung cancer risk. However, there is a genetic factor to lung cancer risk as well. Here, we perform parametric linkage analysis on family-based genotype data in an effort to find genetic loci linked to the disease. METHODS 197 individuals from families with a high-risk history of lung cancer were recruited and genotyped using an Illumina array. Parametric linkage analyses were performed using an affected-only phenotype model with an autosomal dominant inheritance using a disease allele frequency of 0.01. Three types of analyses were performed: single variant two-point, collapsed haplotype pattern variant two-point, and multipoint analysis. RESULTS Five novel genome-wide significant loci were identified at 18p11.23, 2p22.2, 14q13.1, 16p13, and 20q13.11. The families most informative for linkage were also determined. CONCLUSIONS The 5 novel signals are good candidate regions, containing genes that have been implicated as having somatic changes in lung cancer or other cancers (though not in germ line cells). Targeted sequencing on the significant loci is planned to determine the causal variants at these loci.
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Affiliation(s)
- Anthony M Musolf
- National Human Genome Research Institute, National Institutes of Health, Baltimore, MD, USA
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30
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Myers CJ, Lu B. Decreased Survival After Combining Thoracic Irradiation and an Anti-PD-1 Antibody Correlated With Increased T-cell Infiltration Into Cardiac and Lung Tissues. Int J Radiat Oncol Biol Phys 2017; 99:1129-1136. [PMID: 29165283 DOI: 10.1016/j.ijrobp.2017.06.2452] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 06/11/2017] [Accepted: 06/19/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Carey J Myers
- Department of Radiation Oncology, Bodine Center for Cancer Treatment, Philadelphia, Pennsylvania.
| | - Bo Lu
- Department of Radiation Oncology, Bodine Center for Cancer Treatment, Philadelphia, Pennsylvania
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31
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Li J, Zhang Y, Wang X, Zhao R. microRNA-497 overexpression decreases proliferation, migration and invasion of human retinoblastoma cells via targeting vascular endothelial growth factor A. Oncol Lett 2017; 13:5021-5027. [PMID: 28588740 DOI: 10.3892/ol.2017.6083] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 02/28/2017] [Indexed: 01/01/2023] Open
Abstract
The expression level and roles of microRNA-497 (miR-497) have been frequently reported in previous studies on cancer. However, its expression, function and associated molecular mechanisms in retinoblastoma remain unknown. In the present study, miR-497 expression levels in human retinoblastoma tissues, normal retinal tissues and retinoblastoma cell lines were determined using reverse transcription-quantitative polymerase chain reaction. In addition, a Cell Counting Kit-8 assay, cell migration assay, cell invasion assay, western blot analysis and Dual-Luciferase reporter assay were used to explore the expression, functions and molecular mechanisms of miR-497 in human retinoblastoma. It was demonstrated that miR-497 was significantly downregulated in retinoblastoma tissues and cell lines compared with normal retinal tissues. Ectopic expression of miR-497 decreased the proliferation, migration and invasion of retinoblastoma cells. Furthermore, VEGFA was verified as a potential direct target of miR-497 in vitro. Taken together, the results indicate that miR-497 functions as a tumor suppressor in the carcinogenesis and progression of retinoblastoma via targeting VEGFA. miR-497 should be investigated as a potential therapeutic target for the treatment of retinoblastoma.
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Affiliation(s)
- Jianjun Li
- Department of Ophthalmology, Xi'an XD Group Hospital, Xi'an, Shaanxi 710077, P.R. China
| | - Yinghui Zhang
- Department of Ophthalmology, Xi'an XD Group Hospital, Xi'an, Shaanxi 710077, P.R. China
| | - Xiuchao Wang
- Department of Ophthalmology, Xi'an XD Group Hospital, Xi'an, Shaanxi 710077, P.R. China
| | - Ruibo Zhao
- Refractive Surgery Center, Xi'an Aier Ancient City Eye Hospital, Xi'an, Shaanxi 710061, P.R. China
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32
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Kanwal M, Ding XJ, Cao Y. Familial risk for lung cancer. Oncol Lett 2017; 13:535-542. [PMID: 28356926 PMCID: PMC5351216 DOI: 10.3892/ol.2016.5518] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 08/26/2016] [Indexed: 01/07/2023] Open
Abstract
Lung cancer, which has a low survival rate, is a leading cause of cancer-associated mortality worldwide. Smoking and air pollution are the major causes of lung cancer; however, numerous studies have demonstrated that genetic factors also contribute to the development of lung cancer. A family history of lung cancer increases the risk for the disease in both smokers and never-smokers. This review focuses on familial lung cancer, in particular on the familial aggregation of lung cancer. The development of familial lung cancer involves shared environmental and genetic factors among family members. Familial lung cancer represents a good model for investigating the association between environmental and genetic factors, as well as for identifying susceptibility genes for lung cancer. In addition, studies on familial lung cancer may help to elucidate the etiology and mechanism of lung cancer, and may identify novel biomarkers for early detection and diagnosis, targeted therapy and improved prevention strategies. This review presents the aetiology and molecular biology of lung cancer and then systematically introduces and discusses several aspects of familial lung cancer, including the characteristics of familial lung cancer, population-based studies on familial lung cancer and the genetics of familial lung cancer.
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Affiliation(s)
- Madiha Kanwal
- Laboratory of Molecular and Experimental Pathology, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, P.R. China
- Kunming College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Xiao-Ji Ding
- Laboratory of Molecular and Experimental Pathology, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, P.R. China
| | - Yi Cao
- Laboratory of Molecular and Experimental Pathology, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, P.R. China
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Musolf AM, Simpson CL, de Andrade M, Mandal D, Gaba C, Yang P, Li Y, You M, Kupert EY, Anderson MW, Schwartz AG, Pinney SM, Amos CI, Bailey-Wilson JE. Familial Lung Cancer: A Brief History from the Earliest Work to the Most Recent Studies. Genes (Basel) 2017; 8:genes8010036. [PMID: 28106732 PMCID: PMC5295030 DOI: 10.3390/genes8010036] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 12/29/2016] [Accepted: 01/11/2017] [Indexed: 02/06/2023] Open
Abstract
Lung cancer is the deadliest cancer in the United States, killing roughly one of four cancer patients in 2016. While it is well-established that lung cancer is caused primarily by environmental effects (particularly tobacco smoking), there is evidence for genetic susceptibility. Lung cancer has been shown to aggregate in families, and segregation analyses have hypothesized a major susceptibility locus for the disease. Genetic association studies have provided strong evidence for common risk variants of small-to-moderate effect. Rare and highly penetrant alleles have been identified by linkage studies, including on 6q23-25. Though not common, some germline mutations have also been identified via sequencing studies. Ongoing genomics studies aim to identify additional high penetrance germline susceptibility alleles for this deadly disease.
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Affiliation(s)
- Anthony M Musolf
- National Human Genome Research Institute, National Institutes of Health, Baltimore, MD 21224, USA.
| | - Claire L Simpson
- National Human Genome Research Institute, National Institutes of Health, Baltimore, MD 21224, USA.
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, Memphis, TN 38103, USA.
| | | | - Diptasri Mandal
- Department of Genetics, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
| | - Colette Gaba
- Department of Medicine, University of Toledo Dana Cancer Center, Toledo, OH 43604, USA.
| | - Ping Yang
- Mayo Clinic, Rochester, MN 55904, USA.
| | - Yafang Li
- Geisel School of Medicine, Dartmouth College, Lebanon, NH 03766, USA.
| | - Ming You
- Cancer Center, Medical College of Wisconsin, Milwaukee, WI 53202, USA.
| | - Elena Y Kupert
- Cancer Center, Medical College of Wisconsin, Milwaukee, WI 53202, USA.
| | | | - Ann G Schwartz
- Karmanos Cancer Institute, Wayne State University, Detroit, MI 48226, USA.
| | - Susan M Pinney
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, OH 45202, USA.
| | | | - Joan E Bailey-Wilson
- National Human Genome Research Institute, National Institutes of Health, Baltimore, MD 21224, USA.
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Howell LA, Brockman TA, Sinicrope PS, Patten CA, Decker PA, Busta A, Stoddard S, McNallan SR, Yang P. Receptivity and Preferences for Lifestyle Programs to Reduce Cancer Risk among Lung Cancer Family Members. ADVANCES IN CANCER PREVENTION 2016; 1. [PMID: 27917414 PMCID: PMC5132181 DOI: 10.4172/2472-0429.1000110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Background Lifestyle factors and genetic information has been found to contribute to the occurrence of lung cancer. This study assessed receptivity to participating in lifestyle programs to reduce cancer risk among unaffected lung cancer family members. We also explored demographic, medical, and psychosocial correlates of willingness to participate in lifestyle programs. Methods Family members who are part of a lung Cancer Family Registry were asked to fill out a survey assessing their receptivity to cancer risk reduction programs including preferences for an individual or family-based program. Results Of the 583 respondents, 85% were “Somewhat” or “Definitely” willing to participate in a lifestyle program. Among those receptive, about half (56%) preferred a family-based approach. Preferred programs included weight management (36%) and nutritional information (30%). Preferred delivery channels were Internet (45%) and mail-based (29%) programs. On multivariate analysis, those definitely/somewhat receptive reported greater exercise self-efficacy scores (p=0.025). Conclusion The majority of the sample was receptive to lifestyle programs that might decrease cancer risk. There was a large preference for family-based weight management and nutritional programs. Further research is indicated to determine how to best incorporate a family-based approach to lifestyle programs for cancer family members.
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Affiliation(s)
- Lisa A Howell
- Department of Psychology and Psychiatry, Mayo Clinic, Rochester, MN 55905, USA
| | - Tabetha A Brockman
- Behavioral Health Research Program, Mayo Clinic, Rochester, MN 55905, USA
| | - Pamela S Sinicrope
- Department of Psychology and Psychiatry, Mayo Clinic, Rochester, MN 55905, USA; Behavioral Health Research Program, Mayo Clinic, Rochester, MN 55905, USA
| | - Christi A Patten
- Department of Psychology and Psychiatry, Mayo Clinic, Rochester, MN 55905, USA; Behavioral Health Research Program, Mayo Clinic, Rochester, MN 55905, USA
| | - Paul A Decker
- Department of Medical Genetics, Mayo Clinic, Rochester, MN 55905, USA; Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Allan Busta
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Shawn Stoddard
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Sheila R McNallan
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Ping Yang
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
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Focused Analysis of Exome Sequencing Data for Rare Germline Mutations in Familial and Sporadic Lung Cancer. J Thorac Oncol 2016; 11:52-61. [PMID: 26762739 DOI: 10.1016/j.jtho.2015.09.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 09/21/2015] [Accepted: 09/25/2015] [Indexed: 01/05/2023]
Abstract
INTRODUCTION The association between smoking-induced chronic obstructive pulmonary disease (COPD) and lung cancer (LC) is well documented. Recent genome-wide association studies (GWAS) have identified 28 susceptibility loci for LC, 10 for COPD, 32 for smoking behavior, and 63 for pulmonary function, totaling 107 nonoverlapping loci. Given that common variants have been found to be associated with LC in genome-wide association studies, exome sequencing of these high-priority regions has great potential to identify novel rare causal variants. METHODS To search for disease-causing rare germline mutations, we used a variation of the extreme phenotype approach to select 48 patients with sporadic LC who reported histories of heavy smoking-37 of whom also exhibited carefully documented severe COPD (in whom smoking is considered the overwhelming determinant)-and 54 unique familial LC cases from families with at least three first-degree relatives with LC (who are likely enriched for genomic effects). RESULTS By focusing on exome profiles of the 107 target loci, we identified two key rare mutations. A heterozygous p.Arg696Cys variant in the coiled-coil domain containing 147 (CCDC147) gene at 10q25.1 was identified in one sporadic and two familial cases. The minor allele frequency (MAF) of this variant in the 1000 Genomes database is 0.0026. The p.Val26Met variant in the dopamine β-hydroxylase (DBH) gene at 9q34.2 was identified in two sporadic cases; the minor allele frequency of this mutation is 0.0034 according to the 1000 Genomes database. We also observed three suggestive rare mutations on 15q25.1: iron-responsive element binding protein neuronal 2 (IREB2); cholinergic receptor, nicotinic, alpha 5 (neuronal) (CHRNA5); and cholinergic receptor, nicotinic, beta 4 (CHRNB4). CONCLUSIONS Our results demonstrated highly disruptive risk-conferring CCDC147 and DBH mutations.
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Niwa O, Barcellos-Hoff MH, Globus RK, Harrison JD, Hendry JH, Jacob P, Martin MT, Seed TM, Shay JW, Story MD, Suzuki K, Yamashita S. ICRP Publication 131: Stem Cell Biology with Respect to Carcinogenesis Aspects of Radiological Protection. Ann ICRP 2016; 44:7-357. [PMID: 26637346 DOI: 10.1177/0146645315595585] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This report provides a review of stem cells/progenitor cells and their responses to ionising radiation in relation to issues relevant to stochastic effects of radiation that form a major part of the International Commission on Radiological Protection's system of radiological protection. Current information on stem cell characteristics, maintenance and renewal, evolution with age, location in stem cell 'niches', and radiosensitivity to acute and protracted exposures is presented in a series of substantial reviews as annexes concerning haematopoietic tissue, mammary gland, thyroid, digestive tract, lung, skin, and bone. This foundation of knowledge of stem cells is used in the main text of the report to provide a biological insight into issues such as the linear-no-threshold (LNT) model, cancer risk among tissues, dose-rate effects, and changes in the risk of radiation carcinogenesis by age at exposure and attained age. Knowledge of the biology and associated radiation biology of stem cells and progenitor cells is more developed in tissues that renew fairly rapidly, such as haematopoietic tissue, intestinal mucosa, and epidermis, although all the tissues considered here possess stem cell populations. Important features of stem cell maintenance, renewal, and response are the microenvironmental signals operating in the niche residence, for which a well-defined spatial location has been identified in some tissues. The identity of the target cell for carcinogenesis continues to point to the more primitive stem cell population that is mostly quiescent, and hence able to accumulate the protracted sequence of mutations necessary to result in malignancy. In addition, there is some potential for daughter progenitor cells to be target cells in particular cases, such as in haematopoietic tissue and in skin. Several biological processes could contribute to protecting stem cells from mutation accumulation: (a) accurate DNA repair; (b) rapidly induced death of injured stem cells; (c) retention of the DNA parental template strand during divisions in some tissue systems, so that mutations are passed to the daughter differentiating cells and not retained in the parental cell; and (d) stem cell competition, whereby undamaged stem cells outcompete damaged stem cells for residence in the niche. DNA repair mainly occurs within a few days of irradiation, while stem cell competition requires weeks or many months depending on the tissue type. The aforementioned processes may contribute to the differences in carcinogenic radiation risk values between tissues, and may help to explain why a rapidly replicating tissue such as small intestine is less prone to such risk. The processes also provide a mechanistic insight relevant to the LNT model, and the relative and absolute risk models. The radiobiological knowledge also provides a scientific insight into discussions of the dose and dose-rate effectiveness factor currently used in radiological protection guidelines. In addition, the biological information contributes potential reasons for the age-dependent sensitivity to radiation carcinogenesis, including the effects of in-utero exposure.
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Malhotra J, Malvezzi M, Negri E, La Vecchia C, Boffetta P. Risk factors for lung cancer worldwide. Eur Respir J 2016; 48:889-902. [PMID: 27174888 DOI: 10.1183/13993003.00359-2016] [Citation(s) in RCA: 429] [Impact Index Per Article: 53.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 04/04/2016] [Indexed: 02/06/2023]
Abstract
Lung cancer is the most frequent malignant neoplasm in most countries, and the main cancer-related cause of mortality worldwide in both sexes combined.The geographic and temporal patterns of lung cancer incidence, as well as lung cancer mortality, on a population level are chiefly determined by tobacco consumption, the main aetiological factor in lung carcinogenesis.Other factors such as genetic susceptibility, poor diet, occupational exposures and air pollution may act independently or in concert with tobacco smoking in shaping the descriptive epidemiology of lung cancer. Moreover, novel approaches in the classification of lung cancer based on molecular techniques have started to bring new insights to its aetiology, in particular among nonsmokers. Despite the success in delineation of tobacco smoking as the major risk factor for lung cancer, this highly preventable disease remains among the most common and most lethal cancers globally.Future preventive efforts and research need to focus on non-cigarette tobacco smoking products, as well as better understanding of risk factors underlying lung carcinogenesis in never-smokers.
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Affiliation(s)
- Jyoti Malhotra
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Matteo Malvezzi
- Dept of Clinical Sciences and Community Health, University of Milan, Milan, Italy Dept of Epidemiology, IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - Eva Negri
- Dept of Epidemiology, IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - Carlo La Vecchia
- Dept of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Paolo Boffetta
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Lin Z, Zhao J, Wang X, Zhu X, Gong L. Overexpression of microRNA-497 suppresses cell proliferation and induces apoptosis through targeting paired box 2 in human ovarian cancer. Oncol Rep 2016; 36:2101-7. [PMID: 27513319 DOI: 10.3892/or.2016.5012] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 03/22/2016] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs are a class of endogenous, small non-coding RNAs which are tightly involved in evolution and progression of human cancers. MicroRNA-497 has been reported as tumor-suppressor in various human cancer. However, the role of miR-497 in ovarian cancer is still poorly known. We investigated the expression level and cellular function of miR-497 in human ovarian cancer. In this study, the expression of miR-497 in ovarian cancer tissues and SKOV3 cells was detected by quantitative reverse‑transcription polymerase chain reaction (qRT-PCR). CCK-8 assay was used to analysis the cell proliferation. Transwell assay was performed to analysis cell migration and invasion. Cell apoptosis was evaluated by flow cytometry. Luciferase assay was performed to verify a putative target site of miR-497 in the 3'UTR of PAX2 mRNA. The results showed that miR-497 was markedly decreased in ovarian cancer tissues and SKOV3 cells. Moreover, overexpression of miR-497 in SKOV3 cells induced PAX2 protein expression and resulted in inhibition of cell proliferation, migration and invasion, and induction of cell apoptosis. In addition, we confirmed that PAX2 is a direct target gene of miR-497. Furthermore, Silencing of PAX2 by RNA interference suppressed cell proliferation and promoted cell apoptosis in vitro. Taken together, our study rationally present that miR-497 has a potential role as a useful diagnostic and therapeutic biomarker for human ovarian cancer.
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Affiliation(s)
- Zhong Lin
- Hepatobiliary and Enteric Surgery Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Junling Zhao
- Department of Gynaecology, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| | - Xindan Wang
- Department of Gynaecology, Liuzhou Maternity and Child Healthcare Hospital, Liuzhou, Guangxi, P.R. China
| | - Xuehong Zhu
- Department of Gynaecology, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, P.R. China
| | - Liansheng Gong
- Hepatobiliary and Enteric Surgery Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
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Abstract
Lung cancer in multiple first degree relatives had previously been attributed to smoking and to inherited enzymes associated with increased activation of carcinogens in smoke. There was not clear agreement on the significance of the testing methods for lung cancer susceptibility. More recent studies have identified germline mutations associated with lung cancer even in the absence of smoking and other mutations with plausible explanations for their association with lung cancer caused by smoking. At this time, the clinical significance of the various germline mutations for screening and the implications for therapy are not certain. This review summarizes the currently identified germline mutations associated with lung cancer, but this growing area of research will very likely identify further significant mutations as well.
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Ansari J, Shackelford RE, El-Osta H. Epigenetics in non-small cell lung cancer: from basics to therapeutics. Transl Lung Cancer Res 2016; 5:155-71. [PMID: 27186511 DOI: 10.21037/tlcr.2016.02.02] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lung cancer remains the number one cause of cancer-related deaths worldwide with 221,200 estimated new cases and 158,040 estimated deaths in 2015. Approximately 80% of cases are non-small cell lung cancer (NSCLC). The diagnosis is usually made at an advanced stage where the prognosis is poor and therapeutic options are limited. The evolution of lung cancer is a multistep process involving genetic, epigenetic, and environmental factor interactions that result in the dysregulation of key oncogenes and tumor suppressor genes, culminating in activation of cancer-related signaling pathways. The past decade has witnessed the discovery of multiple molecular aberrations that drive lung cancer growth, among which are epidermal growth factor receptor (EGFR) mutations and translocations involving the anaplastic lymphoma kinase (ALK) gene. This has translated into therapeutic agent developments that target these molecular alterations. The absence of targetable mutations in 50% of NSCLC cases and targeted therapy resistance development underscores the importance for developing alternative therapeutic strategies for treating lung cancer. Among these strategies, pharmacologic modulation of the epigenome has been used to treat lung cancer. Epigenetics approaches may circumvent the problem of tumor heterogeneity by affecting the expression of multiple tumor suppression genes (TSGs), halting tumor growth and survival. Moreover, it may be effective for tumors that are not driven by currently recognized druggable mutations. This review summarizes the molecular pathology of lung cancer epigenetic aberrations and discusses current efforts to target the epigenome with different pharmacological approaches. Our main focus will be on hypomethylating agents, histone deacetylase (HDAC) inhibitors, microRNA modulations, and the role of novel epigenetic biomarkers. Last, we will address the challenges that face this old-new strategy in treating lung cancer.
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Affiliation(s)
- Junaid Ansari
- 1 Department of Medicine, Feist-Weiller Cancer Center, LSU Health, Shreveport, LA, USA ; 2 Department of Pathology, LSU Health Shreveport, Shreveport, LA, USA
| | - Rodney E Shackelford
- 1 Department of Medicine, Feist-Weiller Cancer Center, LSU Health, Shreveport, LA, USA ; 2 Department of Pathology, LSU Health Shreveport, Shreveport, LA, USA
| | - Hazem El-Osta
- 1 Department of Medicine, Feist-Weiller Cancer Center, LSU Health, Shreveport, LA, USA ; 2 Department of Pathology, LSU Health Shreveport, Shreveport, LA, USA
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Liu Q, Wang H, Singh A, Shou F. Expression and function of microRNA-497 in human osteosarcoma. Mol Med Rep 2016; 14:439-45. [PMID: 27176490 DOI: 10.3892/mmr.2016.5256] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Accepted: 04/12/2016] [Indexed: 11/06/2022] Open
Abstract
The expression and function of microRNA-497 (miR-497) has previously been reported in various types of human cancer; however, miR-497 has not previously been investigated in human osteosarcoma (OS). In the present study, the expression levels of miR‑497 were analyzed by reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) in OS tissues and cell lines. In addition, post-transfection with miR‑497, RT‑qPCR, cell proliferation, migration and invasion assays, western blot analysis, and luciferase assays were performed in OS cell lines. The results of the present study demonstrated that miR‑497 was downregulated in OS tissues and cells compared with normal controls. Furthermore, upregulation of miR‑497 inhibited cell proliferation, migration and invasion in osteosarcoma cell lines compared with the negative control group. In addition, the present study demonstrated that miR‑497 may function by directly targeting insulin‑like growth factor 1 receptor in OS cells. These findings indicated that miR‑497 may be useful as a therapeutic target for the treatment of OS.
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Affiliation(s)
- Qi Liu
- Department of Orthopaedic Surgery, Shengjing Hospital, China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Huan Wang
- Department of Orthopaedic Surgery, Shengjing Hospital, China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Ankit Singh
- Department of Orthopaedic Surgery, Shengjing Hospital, China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Fenyong Shou
- Department of Orthopaedic Surgery, Shengjing Hospital, China Medical University, Shenyang, Liaoning 110004, P.R. China
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Abstract
Paclitaxel and docetaxel, drugs that bind tightly to beta-tubulin and disrupt microtubule dynamics, are widely used in the treatment of non-small cell lung cancer (NSCLC), the most common cause of cancer death in men and women living in the US. These well tolerated drugs, alone or in combination with another cytotoxic agent, have been shown to increase the survival of patients with metastatic disease or malignant effusions. Both paclitaxel and docetaxel can be combined with concurrent chest irradiation for patients with locally advanced NSCLC. The combination of carboplatin and paclitaxel, when given postoperatively to patients with stage IB NSCLC, improved survival compared with surgery alone, with little toxicity. Taxane combinations are undergoing study as adjuvant therapy for patients with other stages of operable disease. Except for a recent trial with bevacizumab, efforts to improve the efficacy of taxane/platinum combinations in patients with advanced disease by adding a third 'targeted' drug have thus far been unsuccessful.
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Affiliation(s)
- Michael Fanucchi
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA
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Han Z, Zhang Y, Yang Q, Liu B, Wu J, Zhang Y, Yang C, Jiang Y. miR-497 and miR-34a retard lung cancer growth by co-inhibiting cyclin E1 (CCNE1). Oncotarget 2016; 6:13149-63. [PMID: 25909221 PMCID: PMC4537005 DOI: 10.18632/oncotarget.3693] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 03/02/2015] [Indexed: 12/19/2022] Open
Abstract
Cyclin E1, encoded by the CCNE1 gene, promotes G1/S transition, chromosome instability, and oncogenesis. Here, we show that miR-497 and miR-34a target the 3'-UTR of CCNE1. miR-497 and miR-34a are downregulated in cancer cells and their ectopic expression inhibited cell proliferation and colony formation in vitro, and inhibited tumor growth in a xenograft model. The effect of simultaneous overexpression of miR-497 and miR-34a on the inhibition of cell proliferation, colony formation, and tumor growth, and the downregulation of cyclin E1 was stronger than the effect of each miRNA alone. The synergistic actions of miR-497 and miR-34a partly correlated with cyclin E1 levels. When cells stably expressing CCNE1 were transfected with the Hi-miR-497/34a plasmid, there was no effect on colony formation, compared with that of cells transfected with either Hi-miR497 or Hi-miR34a. These results indicate cyclin E1 is downregulated by both miR-497 and miR-34a, which synergistically retard the growth of human lung cancer cells.
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Affiliation(s)
- Zhiyuan Han
- State Key Laboratory of Respiratory Disease, Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, P.R. China
| | - Yanbin Zhang
- Department of Pulmonary Tuberculosis, Guangzhou Chest Hospital, Guangzhou, P.R. China
| | - Qiaoyuan Yang
- State Key Laboratory of Respiratory Disease, Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, P.R. China
| | - Binbin Liu
- State Key Laboratory of Respiratory Disease, Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, P.R. China
| | - Jianjun Wu
- State Key Laboratory of Respiratory Disease, Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, P.R. China
| | - Yajie Zhang
- Department of Pathology, Guangzhou Medical University, Guangzhou, P.R. China
| | - Chengfeng Yang
- Department of Physiology and Center for Integrative Toxicology, Michigan State University, East Lansing, MI, USA
| | - Yiguo Jiang
- State Key Laboratory of Respiratory Disease, Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, P.R. China
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Schwartz AG, Cote ML. Epidemiology of Lung Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 893:21-41. [PMID: 26667337 DOI: 10.1007/978-3-319-24223-1_2] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Lung cancer continues to be one of the most common causes of cancer death despite understanding the major cause of the disease: cigarette smoking. Smoking increases lung cancer risk 5- to 10-fold with a clear dose-response relationship. Exposure to environmental tobacco smoke among nonsmokers increases lung cancer risk about 20%. Risks for marijuana and hookah use, and the new e-cigarettes, are yet to be consistently defined and will be important areas for continued research as use of these products increases. Other known environmental risk factors include exposures to radon, asbestos, diesel, and ionizing radiation. Host factors have also been associated with lung cancer risk, including family history of lung cancer, history of chronic obstructive pulmonary disease and infections. Studies to identify genes associated with lung cancer susceptibility have consistently identified chromosomal regions on 15q25, 6p21 and 5p15 associated with lung cancer risk. Risk prediction models for lung cancer typically include age, sex, cigarette smoking intensity and/or duration, medical history, and occupational exposures, however there is not yet a risk prediction model currently recommended for general use. As lung cancer screening becomes more widespread, a validated model will be needed to better define risk groups to inform screening guidelines.
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Affiliation(s)
- Ann G Schwartz
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA.
| | - Michele L Cote
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
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Abstract
Tobacco smoking is the most common cause of lung cancer, but approximately 10–25% of patients with lung cancer are life-long never smokers. The cause of lung cancer in never smokers is unknown, although tobacco-smoke exposure may play a role in some of these patients. Lung cancer that develops in the absence of significant tobacco-smoke exposure appears to be a unique disease entity with novel genomic and epigenomic alterations and activation of molecular pathways that are not generally seen in tobacco-smoke-induced lung cancer. These molecular alterations are very likely responsible for the unique clinico-pathological features of lung cancer in never smokers (LCINS), and some of these molecular alterations – such as the activating EGFR TK mutations and EML4–ALK fusion – significantly influence therapeutic choices and treatment outcomes. In the last few years there has been a number of studies exploring the molecular characteristics of LCINS, and some of them have reported new and significant findings. Here we review the key findings from these studies and discuss their potential therapeutic implications.
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Germline mutations causing familial lung cancer. J Hum Genet 2015; 60:597-603. [PMID: 26178433 DOI: 10.1038/jhg.2015.75] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 05/13/2015] [Accepted: 06/02/2015] [Indexed: 12/19/2022]
Abstract
Genetic factors are important in lung cancer, but as most lung cancers are sporadic, little is known about inherited genetic factors. We identified a three-generation family with suspected autosomal dominant inherited lung cancer susceptibility. Sixteen individuals in the family had lung cancer. To identify the gene(s) that cause lung cancer in this pedigree, we extracted DNA from the peripheral blood of three individuals and from the blood of one cancer-free control family member and performed whole-exome sequencing. We identified 41 alterations in 40 genes in all affected family members but not in the unaffected member. These were considered candidate mutations for familial lung cancer. Next, to identify somatic mutations and/or inherited alterations in these 40 genes among sporadic lung cancers, we performed exon target enrichment sequencing using 192 samples from sporadic lung cancer patients. We detected somatic 'candidate' mutations in multiple sporadic lung cancer samples; MAST1, CENPE, CACNB2 and LCT were the most promising candidate genes. In addition, the MAST1 gene was located in a putative cancer-linked locus in the pedigree. Our data suggest that several genes act as oncogenic drivers in this family, and that MAST1 is most likely to cause lung cancer.
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The SNP rs931794 in 15q25.1 Is Associated with Lung Cancer Risk: A Hospital-Based Case-Control Study and Meta-Analysis. PLoS One 2015; 10:e0128201. [PMID: 26079375 PMCID: PMC4469418 DOI: 10.1371/journal.pone.0128201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Accepted: 04/24/2015] [Indexed: 01/11/2023] Open
Abstract
Background Lung cancer is one of the most common human malignant diseases and the leading cause of cancer death worldwide. The rs931794, a SNP located in 15q25.1, has been suggested to be associated with lung cancer risk. Nevertheless, several genetic association studies yielded controversial results. Methods and Findings A hospital-based case-control study involving 611 cases and 1062 controls revealed the variant of rs931794 was related to increased lung cancer risk. Stratified analyses revealed the G allele was significantly associated with lung cancer risk among smokers. Following meta-analysis including 6616 cases and 7697 controls confirmed the relevance of rs931794 variant with increased lung cancer risk once again. Heterogeneity should be taken into account when interpreting the consequences. Stratified analysis found ethnicity, histological type and genotyping method were not the sources of between-study heterogeneity. Further sensitivity analysis revealed that the study “Hsiung et al (2010)” might be the major contributor to heterogeneity. Cumulative meta-analysis showed the trend was increasingly obvious with adding studies, confirming the significant association. Conclusions Results from our current case-control study and meta-analysis offered insight of association between rs931794 and lung cancer risk, suggesting the variant of rs931794 might be related with increased lung cancer risk.
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Basson J, Sung YJ, Fuentes LDL, Schwander K, Cupples LA, Rao DC. Influence of Smoking Status and Intensity on Discovery of Blood Pressure Loci Through Gene-Smoking Interactions. Genet Epidemiol 2015; 39:480-488. [PMID: 25940791 DOI: 10.1002/gepi.21904] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 03/27/2015] [Accepted: 04/01/2015] [Indexed: 11/06/2022]
Abstract
BACKGROUND Genetic variation accounts for approximately 30% of blood pressure (BP) variability but most of that variability has not been attributed to specific variants. Interactions between genes and BP-associated factors may explain some "missing heritability." Cigarette smoking increases BP after short-term exposure and decreases BP with longer exposure. Gene-smoking interactions have discovered novel BP loci, but the contribution of smoking status and intensity to gene discovery is unknown. METHODS We analyzed gene-smoking intensity interactions for association with systolic BP (SBP) in three subgroups from the Framingham Heart Study: current smokers only (N = 1,057), current and former smokers ("ever smokers," N = 3,374), and all subjects (N = 6,710). We used three smoking intensity variables defined at cutoffs of 10, 15, and 20 cigarettes per day (CPD). We evaluated the 1 degree-of-freedom (df) interaction and 2df joint test using generalized estimating equations. RESULTS Analysis of current smokers using a CPD cutoff of 10 produced two loci associated with SBP. The rs9399633 minor allele was associated with increased SBP (5 mmHg) in heavy smokers (CPD > 10) but decreased SBP (7 mmHg) in light smokers (CPD ≤ 10). The rs11717948 minor allele was associated with decreased SBP (8 mmHg) in light smokers but decreased SBP (2 mmHg) in heavy smokers. Across all nine analyses, 19 additional loci reached P < 1 × 10(-6). DISCUSSION Analysis of current smokers may have the highest power to detect gene-smoking interactions, despite the reduced sample size. Associations of loci near SASH1 and KLHL6/KLHL24 with SBP may be modulated by tobacco smoking.
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Affiliation(s)
- Jacob Basson
- Division of Biostatistics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Yun Ju Sung
- Division of Biostatistics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Lisa de Las Fuentes
- Division of Biostatistics, Washington University School of Medicine, St. Louis, Missouri, USA.,Department of Medicine, Cardiovascular Division, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Karen Schwander
- Division of Biostatistics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - L Adrienne Cupples
- The Framingham Heart Study, Framingham, MA, 01702, USA.,Department of Biostatistics, Boston University School of Public Health, Boston, MA, 02118, USA
| | - D C Rao
- Division of Biostatistics, Washington University School of Medicine, St. Louis, Missouri, USA
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49
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Cheng PC, Cheng YC. Correlation between familial cancer history and epidermal growth factor receptor mutations in Taiwanese never smokers with non-small cell lung cancer: a case-control study. J Thorac Dis 2015; 7:281-7. [PMID: 25922704 DOI: 10.3978/j.issn.2072-1439.2015.02.03] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 01/13/2015] [Indexed: 12/29/2022]
Abstract
BACKGROUND Lung cancer is a leading cause of cancer deaths in the world. Cigarette smoking remains a prominent risk factor, but lung cancer incidence has been increasing in never smokers. Genetic abnormalities including epidermal growth factor receptor (EGFR) mutations predominate in never smoking lung cancer patients. Furthermore, familial aggregations of patients with these mutations reflect heritable susceptibility to lung cancer. The correlation between familial cancer history and EGFR mutations in never smokers with lung cancer requires investigation. METHODS This was a retrospective case-control study that evaluated the prevalence of EGFR mutations in lung cancer patients with familial cancer history. Never smokers with lung cancer treated at a hospital in Taiwan between April 2012 and May 2014 were evaluated. Inclusion criteria were never smokers with non-small cell lung cancer (NSCLC). Exclusion criteria involved patients without records of familial cancer history or tumor genotype. RESULTS This study included 246 never smokers with lung cancer. The study population mainly involved never smoking women with a mean age of 60 years, and the predominant tumor histology was adenocarcinoma. Lung cancer patients with familial cancer history had an increased prevalence of EGFR mutations compared to patients without family history [odds ratio (OR): 5.9; 95% confidence interval (CI): 3.3-10.6; P<0.001]. Specifically, 57 out of 85 cancer patients (67%) with familial cancer history had these mutations, while 41 out of 161 patients (25%) without family history harbored mutations. Subgroup analysis also revealed that patients with familial lung cancer history had stronger association with EGFR mutations (OR: 7.5; 95% CI: 3.4-16.3; P<0.001) compared to patients with family history of non-pulmonary cancers (OR: 5.0; 95% CI: 2.5-10.0; P<0.001). CONCLUSIONS The study demonstrated an increased prevalence of EGFR mutations in Taiwanese never smoking lung cancer patients with familial cancer history. Moreover, a sizable proportion of never smoking cancer patients harbored these mutations. These observations have implications for the treatment of lung cancer in never smokers.
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Affiliation(s)
- Po-Chung Cheng
- 1 Department of Internal Medicine, 2 Department of Radiology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yun-Chung Cheng
- 1 Department of Internal Medicine, 2 Department of Radiology, Taichung Veterans General Hospital, Taichung, Taiwan
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50
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Wang Y, Wei Y, Gaborieau V, Shi J, Han Y, Timofeeva MN, Su L, Li Y, Eisen T, Amos CI, Landi MT, Christiani DC, McKay JD, Houlston RS. Deciphering associations for lung cancer risk through imputation and analysis of 12,316 cases and 16,831 controls. Eur J Hum Genet 2015; 23:1723-8. [PMID: 25804397 DOI: 10.1038/ejhg.2015.48] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 01/23/2015] [Accepted: 02/11/2015] [Indexed: 11/09/2022] Open
Abstract
Recent genome-wide association studies have identified common variants at multiple loci influencing lung cancer risk. To decipher the genetic basis of the association signals at 3q28, 5p15.33, 6p21.33, 9p21 and 12p13.33, we performed a meta-analysis of data from five genome-wide association studies in populations of European ancestry totalling 12 316 lung cancer cases and 16 831 controls using imputation to recover untyped genotypes. For four of the regions, it was possible to refine the association signal identifying a smaller region of interest likely to harbour the functional variant. Our analysis did not provide evidence that any of the associations at the loci being a consequence of synthetic associations rather than linkage disequilibrium with a common risk variant at these risk loci.
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Affiliation(s)
- Yufei Wang
- Division of Genetics and Epidemiology, The Institute of Cancer Research, Surrey, Sutton, UK
| | - Yongyue Wei
- Department of Environmental Health, Harvard School of Public Health, Boston, MA, USA
| | - Valerie Gaborieau
- International Agency for Research on Cancer (IARC, World Health Organization (WHO)), Lyon, France
| | - Jianxin Shi
- Division of Cancer Epidemiology and Genetics, National Cancer institute, NIH, DHHS, Bethesda, MD, USA
| | - Younghun Han
- Department of Community and Family Medicine, Geisel School of Medicine, Center for Genomic Medicine, Lebanon, NH, USA
| | - Maria N Timofeeva
- International Agency for Research on Cancer (IARC, World Health Organization (WHO)), Lyon, France.,Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Li Su
- Department of Environmental Health, Harvard School of Public Health, Boston, MA, USA
| | - Yafang Li
- Department of Community and Family Medicine, Geisel School of Medicine, Center for Genomic Medicine, Lebanon, NH, USA
| | - Timothy Eisen
- Addenbrooke's Hospital, Cambridge Biomedical Campus, Cambridge, UK
| | - Christopher I Amos
- Department of Community and Family Medicine, Geisel School of Medicine, Center for Genomic Medicine, Lebanon, NH, USA
| | - Maria Teresa Landi
- Department of Health and Human Services, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD, USA
| | - David C Christiani
- Department of Environmental Health, Harvard School of Public Health, Boston, MA, USA
| | - James D McKay
- International Agency for Research on Cancer (IARC, World Health Organization (WHO)), Lyon, France
| | - Richard S Houlston
- Division of Genetics and Epidemiology, The Institute of Cancer Research, Surrey, Sutton, UK
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