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1. A cross-sectional study of inflammatory markers as determinants of circulating kynurenines in the Lung Cancer Cohort Consortium

Author

Midttun, Øivind, Ulvik, Arve, Meyer, Klaus, Zahed, Hana, Giles, Graham G., Manjer, Jonas, Sandsveden, Malte, Langhammer, Arnulf, Sørgjerd, Elin Pettersen, Behndig, Annelie F., Johansson, Mikael, Freedman, Neal D., Huang, Wen-Yi, Chen, Chu, Prentice, Ross, Stevens, Victoria L., Wang, Ying, Le Marchand, Loïc, Weinstein, Stephanie J., Cai, Qiuyin, Arslan, Alan A., Chen, Yu, Shu, Xiao-Ou, Zheng, Wei, Yuan, Jian-Min, Koh, Woon-Puay, Visvanathan, Kala, Sesso, Howard D., Zhang, Xuehong, Gaziano, J. Michael, Fanidi, Anouar, Robbins, Hilary A., Brennan, Paul, Johansson, Mattias, and Ueland, Per M.

Subjects
Cancer och onkologi, Multidisciplinary, Cancer and Oncology
Abstract

Circulating concentrations of metabolites (collectively called kynurenines) in the kynurenine pathway of tryptophan metabolism increase during inflammation, particularly in response to interferon-gamma (IFN-γ). Neopterin and the kynurenine/tryptophan ratio (KTR) are IFN-γ induced inflammatory markers, and together with C-reactive protein (CRP) and kynurenines they are associated with various diseases, but comprehensive data on the strength of associations of inflammatory markers with circulating concentrations of kynurenines are lacking. We measured circulating concentrations of neopterin, CRP, tryptophan and seven kynurenines in 5314 controls from 20 cohorts in the Lung Cancer Cohort Consortium (LC3). The associations of neopterin, KTR and CRP with kynurenines were investigated using regression models. In mixed models, one standard deviation (SD) higher KTR was associated with a 0.46 SD higher quinolinic acid (QA), and 0.31 SD higher 3-hydroxykynurenine (HK). One SD higher neopterin was associated with 0.48, 0.44, 0.36 and 0.28 SD higher KTR, QA, kynurenine and HK, respectively. KTR and neopterin respectively explained 24.1% and 16.7% of the variation in QA, and 11.4% and 7.5% of HK. CRP was only weakly associated with kynurenines in regression models. In summary, QA was the metabolite that was most strongly associated with the inflammatory markers. In general, the inflammatory markers were most strongly related to metabolites located along the tryptophan–NAD axis, which may support suggestions of increased production of NAD from tryptophan during inflammation.

Published
2023

2. Moving towards FAIR practices in epidemiological research

Author

Garcia-Closas, Montserrat, Ahearn, Thomas U., Gaudet, Mia M., Hurson, Amber N., Balasubramanian, Jeya Balaji, Choudhury, Parichoy Pal, Gerlanc, Nicole M., Patel, Bhaumik, Russ, Daniel, Abubakar, Mustapha, Freedman, Neal D., Wong, Wendy S. W., Chanock, Stephen J., de Gonzalez, Amy Berrington, and Almeida, Jonas S

Subjects
FOS: Biological sciences, Populations and Evolution (q-bio.PE), Quantitative Biology - Populations and Evolution
Abstract

Reproducibility and replicability of research findings are central to the scientific integrity of epidemiology. In addition, many research questions require combiningdata from multiple sources to achieve adequate statistical power. However, barriers related to confidentiality, costs, and incentives often limit the extent and speed of sharing resources, both data and code. Epidemiological practices that follow FAIR principles can address these barriers by making resources (F)indable with the necessary metadata , (A)ccessible to authorized users and (I)nteroperable with other data, to optimize the (R)e-use of resources with appropriate credit to its creators. We provide an overview of these principles and describe approaches for implementation in epidemiology. Increasing degrees of FAIRness can be achieved by moving data and code from on-site locations to the Cloud, using machine-readable and non-proprietary files, and developing open-source code. Adoption of these practices will improve daily work and collaborative analyses, and facilitate compliance with data sharing policies from funders and scientific journals. Achieving a high degree of FAIRness will require funding, training, organizational support, recognition, and incentives for sharing resources. But these costs are amply outweighed by the benefits of making research more reproducible, impactful, and equitable by facilitating the re-use of precious research resources by the scientific community.

Published
2022
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3. Exogenous hormone use, reproductive factors and risk of intrahepatic cholangiocarcinoma among women: results from cohort studies in the Liver Cancer Pooling Project and the UK Biobank

Author

Petrick, Jessica L, McMenamin, Úna C, Zhang, Xuehong, Zeleniuch-Jacquotte, Anne, Wactawski-Wende, Jean, Simon, Tracey G, Sinha, Rashmi, Sesso, Howard D, Schairer, Catherine, Rosenberg, Lynn, Rohan, Thomas E, Robien, Kim, Purdue, Mark P, Poynter, Jenny N, Palmer, Julie R, Lu, Yunxia, Linet, Martha S, Liao, Linda M, Lee, I-Min, Koshiol, Jill, Kitahara, Cari M, Kirsh, Victoria A, Hofmann, Jonathan N, Graubard, Barry I, Giovannucci, Edward, Gaziano, J Michael, Gapstur, Susan M, Freedman, Neal D, Florio, Andrea A, Chong, Dawn Q, Chen, Yu, Chan, Andrew T, Buring, Julie E, Freeman, Laura E Beane, Bea, Jennifer W, Cardwell, Christopher R, Campbell, Peter T, and McGlynn, Katherine A

Subjects
Oral, Liver Cancer, Oncology and Carcinogenesis, Reproductive health and childbirth, Hysterectomy, Cholangiocarcinoma, Cohort Studies, Rare Diseases, Risk Factors, Clinical Research, Humans, Estrogen Receptor beta, 2.1 Biological and endogenous factors, Oncology & Carcinogenesis, Aetiology, Digestive Diseases - (Gallbladder), Proportional Hazards Models, Aged, Biological Specimen Banks, Cancer, Intrahepatic, Neoplastic, Hormonal, Prevention, Liver Disease, Contraception/Reproduction, Liver Neoplasms, Estrogen Receptor alpha, Contraceptives, Middle Aged, Hormones, United Kingdom, Good Health and Well Being, Gene Expression Regulation, Public Health and Health Services, Female, Bile Ducts, Menopause, Digestive Diseases
Abstract

BackgroundIntrahepatic cholangiocarcinoma (ICC) arises from cholangiocytes in the intrahepatic bile duct and is the second most common type of liver cancer. Cholangiocytes express both oestrogen receptor-α and -β, and oestrogens positively modulate cholangiocyte proliferation. Studies in women and men have reported higher circulating oestradiol is associated with increased ICC risk, further supporting a hormonal aetiology. However, no observational studies have examined the associations between exogenous hormone use and reproductive factors, as proxies of endogenous hormone levels, and risk of ICC.MethodsWe harmonised data from 1,107,498 women who enroled in 12 North American-based cohort studies (in the Liver Cancer Pooling Project, LCPP) and the UK Biobank between 1980-1998 and 2006-2010, respectively. Cox proportional hazards regression models were used to generate hazard ratios (HR) and 95% confidence internals (CI). Then, meta-analytic techniques were used to combine the estimates from theLCPP (n = 180 cases) and the UK Biobank (n = 57 cases).ResultsHysterectomy was associated with a doubling of ICC risk (HR = 1.98,95%CI:1.27-3.09), compared to women aged 50-54 at natural menopause. Long-term oral contraceptive use (9+ years) was associated with a 62% increased ICC risk (HR = 1.62,95%CI:1.03-2.55). There was no association between ICC risk and other exogenous hormone use or reproductive factors.ConclusionsThis study suggests that hysterectomy and long-term oral contraceptive use may be associated with an increased ICC risk.

Published
2020

4. Genome-wide association study in 79,366 European-ancestry individuals informs the genetic architecture of 25-hydroxyvitamin D levels

Author

Jiang, Xia, O'Reilly, Paul F, Aschard, Hugues, Hsu, Yi-Hsiang, Richards, J Brent, Dupuis, Josée, Ingelsson, Erik, Karasik, David, Pilz, Stefan, Berry, Diane, Kestenbaum, Bryan, Zheng, Jusheng, Luan, Jianan, Sofianopoulou, Eleni, Streeten, Elizabeth A, Albanes, Demetrius, Lutsey, Pamela L, Yao, Lu, Tang, Weihong, Econs, Michael J, Wallaschofski, Henri, Völzke, Henry, Zhou, Ang, Power, Chris, McCarthy, Mark I, Michos, Erin D, Boerwinkle, Eric, Weinstein, Stephanie J, Freedman, Neal D, Huang, Wen-Yi, Van Schoor, Natasja M, Van Der Velde, Nathalie, Groot, Lisette CPGM De, Enneman, Anke, Cupples, L Adrienne, Booth, Sarah L, Vasan, Ramachandran S, Liu, Ching-Ti, Zhou, Yanhua, Ripatti, Samuli, Ohlsson, Claes, Vandenput, Liesbeth, Lorentzon, Mattias, Eriksson, Johan G, Shea, M Kyla, Houston, Denise K, Kritchevsky, Stephen B, Liu, Yongmei, Lohman, Kurt K, Ferrucci, Luigi, Peacock, Munro, Gieger, Christian, Beekman, Marian, Slagboom, Eline, Deelen, Joris, Heemst, Diana Van, Kleber, Marcus E, März, Winfried, De Boer, Ian H, Wood, Alexis C, Rotter, Jerome I, Rich, Stephen S, Robinson-Cohen, Cassianne, Den Heijer, Martin, Jarvelin, Marjo-Riitta, Cavadino, Alana, Joshi, Peter K, Wilson, James F, Hayward, Caroline, Lind, Lars, Michaëlsson, Karl, Trompet, Stella, Zillikens, M Carola, Uitterlinden, Andre G, Rivadeneira, Fernando, Broer, Linda, Zgaga, Lina, Campbell, Harry, Theodoratou, Evropi, Farrington, Susan M, Timofeeva, Maria, Dunlop, Malcolm G, Valdes, Ana M, Tikkanen, Emmi, Lehtimäki, Terho, Lyytikäinen, Leo-Pekka, Kähönen, Mika, Raitakari, Olli T, Mikkilä, Vera, Ikram, M Arfan, Sattar, Naveed, Jukema, J Wouter, Wareham, Nicholas J, Langenberg, Claudia, Forouhi, Nita G, Gundersen, Thomas E, Khaw, Kay-Tee, Butterworth, Adam S, Danesh, John, Spector, Timothy, Wang, Thomas J, Hyppönen, Elina, Kraft, Peter, and Kiel, Douglas P

Subjects
Cohort Studies, Male, Vesicular Transport Proteins, Humans, Female, Vitamin D, Polymorphism, Single Nucleotide, White People, Amidohydrolases, Autoimmune Diseases, Genome-Wide Association Study
Abstract

Vitamin D is a steroid hormone precursor that is associated with a range of human traits and diseases. Previous GWAS of serum 25-hydroxyvitamin D concentrations have identified four genome-wide significant loci (GC, NADSYN1/DHCR7, CYP2R1, CYP24A1). In this study, we expand the previous SUNLIGHT Consortium GWAS discovery sample size from 16,125 to 79,366 (all European descent). This larger GWAS yields two additional loci harboring genome-wide significant variants (P = 4.7×10-9 at rs8018720 in SEC23A, and P = 1.9×10-14 at rs10745742 in AMDHD1). The overall estimate of heritability of 25-hydroxyvitamin D serum concentrations attributable to GWAS common SNPs is 7.5%, with statistically significant loci explaining 38% of this total. Further investigation identifies signal enrichment in immune and hematopoietic tissues, and clustering with autoimmune diseases in cell-type-specific analysis. Larger studies are required to identify additional common SNPs, and to explore the role of rare or structural variants and gene-gene interactions in the heritability of circulating 25-hydroxyvitamin D levels.

Published
2018
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5. Genome-wide association study in 79,366 European-ancestry individuals informs the genetic architecture of 25-hydroxyvitamin D levels

Author

Jiang, Xia, O'Reilly, Paul F, Aschard, Hugues, Hsu, Yi-Hsiang, Richards, J Brent, Dupuis, Josée, Ingelsson, Erik, Karasik, David, Pilz, Stefan, Berry, Diane, Kestenbaum, Bryan, Zheng, Jusheng, Luan, Jianan, Sofianopoulou, Eleni, Streeten, Elizabeth A, Albanes, Demetrius, Lutsey, Pamela L, Yao, Lu, Tang, Weihong, Econs, Michael J, Wallaschofski, Henri, Völzke, Henry, Zhou, Ang, Power, Chris, McCarthy, Mark I, Michos, Erin D, Boerwinkle, Eric, Weinstein, Stephanie J, Freedman, Neal D, Huang, Wen-Yi, Van Schoor, Natasja M, van der Velde, Nathalie, Groot, Lisette CPGM de, Enneman, Anke, Cupples, L Adrienne, Booth, Sarah L, Vasan, Ramachandran S, Liu, Ching-Ti, Zhou, Yanhua, Ripatti, Samuli, Ohlsson, Claes, Vandenput, Liesbeth, Lorentzon, Mattias, Eriksson, Johan G, Shea, M Kyla, Houston, Denise K, Kritchevsky, Stephen B, Liu, Yongmei, Lohman, Kurt K, Ferrucci, Luigi, Peacock, Munro, Gieger, Christian, Beekman, Marian, Slagboom, Eline, Deelen, Joris, Heemst, Diana van, Kleber, Marcus E, März, Winfried, de Boer, Ian H, Wood, Alexis C, Rotter, Jerome I, Rich, Stephen S, Robinson-Cohen, Cassianne, den Heijer, Martin, Jarvelin, Marjo-Riitta, Cavadino, Alana, Joshi, Peter K, Wilson, James F, Hayward, Caroline, Lind, Lars, Michaëlsson, Karl, Trompet, Stella, Zillikens, M Carola, Uitterlinden, Andre G, Rivadeneira, Fernando, Broer, Linda, Zgaga, Lina, Campbell, Harry, Theodoratou, Evropi, Farrington, Susan M, Timofeeva, Maria, Dunlop, Malcolm G, Valdes, Ana M, Tikkanen, Emmi, Lehtimäki, Terho, Lyytikäinen, Leo-Pekka, Kähönen, Mika, Raitakari, Olli T, Mikkilä, Vera, Ikram, M Arfan, Sattar, Naveed, Jukema, J Wouter, Wareham, Nicholas J, Langenberg, Claudia, Forouhi, Nita G, Gundersen, Thomas E, Khaw, Kay-Tee, Butterworth, Adam S, and Danesh, John

Subjects
Male, Inflammatory and immune system, Human Genome, Vesicular Transport Proteins, Single Nucleotide, White People, Autoimmune Diseases, Amidohydrolases, Cohort Studies, Clinical Research, Genetics, Humans, 2.1 Biological and endogenous factors, Female, Vitamin D, Polymorphism, Aetiology, Genome-Wide Association Study
Abstract

Vitamin D is a steroid hormone precursor that is associated with a range of human traits and diseases. Previous GWAS of serum 25-hydroxyvitamin D concentrations have identified four genome-wide significant loci (GC, NADSYN1/DHCR7, CYP2R1, CYP24A1). In this study, we expand the previous SUNLIGHT Consortium GWAS discovery sample size from 16,125 to 79,366 (all European descent). This larger GWAS yields two additional loci harboring genome-wide significant variants (P = 4.7×10-9 at rs8018720 in SEC23A, and P = 1.9×10-14 at rs10745742 in AMDHD1). The overall estimate of heritability of 25-hydroxyvitamin D serum concentrations attributable to GWAS common SNPs is 7.5%, with statistically significant loci explaining 38% of this total. Further investigation identifies signal enrichment in immune and hematopoietic tissues, and clustering with autoimmune diseases in cell-type-specific analysis. Larger studies are required to identify additional common SNPs, and to explore the role of rare or structural variants and gene-gene interactions in the heritability of circulating 25-hydroxyvitamin D levels.

Published
2018

6. Impaired functional vitamin B6 status is associated with increased risk of lung cancer

Author

Theofylaktopoulou, Despoina, Midttun, Øivind, Ueland, Per M., Meyer, Klaus, Fanidi, Anouar, Zheng, Wei, Shu, Xiao Ou, Xiang, Yong Bing, Prentice, Ross, Pettinger, Mary, Thomson, Cynthia A., Giles, Graham G., Hodge, Allison, Cai, Qiuyin, Blot, William J., Wu, Jie, Johansson, Mikael, Hultdin, Johan, Grankvist, Kjell, Stevens, Victoria L., McCullough, Marjorie M., Weinstein, Stephanie J., Albanes, Demetrius, Ziegler, Regina, Freedman, Neal D., Langhammer, Arnulf, Hveem, Kristian, Næss, Marit, Sesso, Howard D., Gaziano, J. Michael, Buring, Julie E., Lee, I. Min, Severi, Gianluca, Zhang, Xuehong, Stampfer, Meir J., Han, Jiali, Smith-Warner, Stephanie A., Zeleniuch-Jacquotte, Anne, Le Marchand, Loic, Yuan, Jian Min, Wang, Renwei, Butler, Lesley M., Koh, Woon Puay, Gao, Yu Tang, Rothman, Nathaniel, Ericson, Ulrika, Sonestedt, Emily, Visvanathan, Kala, Jones, Miranda R., Relton, Caroline, Brennan, Paul, Johansson, Mattias, and Ulvik, Arve

Subjects
Male, Lung Cancer Cohort Consortium, Lung Neoplasms, pyridoxal 5′-phosphate, functional vitamin B6 marker, Middle Aged, Vitamin B 6, Article, Cohort Studies, xanthurenic acid [3-hydroxykynurenine], Risk Factors, Case-Control Studies, Carcinoma, Squamous Cell, Odds Ratio, Humans, Female, ICEP, Biomarkers, Aged
Abstract

Circulating vitamin B6 levels have been found to be inversely associated with lung cancer. Most studies have focused on the B6 form pyridoxal 5′-phosphate (PLP), a direct biomarker influenced by inflammation and other factors. Using a functional B6 marker allows further investigation of the potential role of vitamin B6 status in the pathogenesis of lung cancer. We prospectively evaluated the association of the functional marker of vitamin B6 status, the 3-hydroxykynurenine:xanthurenic acid (HK:XA) ratio, with risk of lung cancer in a nested case–control study consisting of 5,364 matched case–control pairs from the Lung Cancer Cohort Consortium (LC3). We used conditional logistic regression to evaluate the association between HK:XA and lung cancer, and random effect models to combine results from different cohorts and regions. High levels of HK:XA, indicating impaired functional B6 status, were associated with an increased risk of lung cancer, the odds ratio comparing the fourth and the first quartiles (OR4th vs. 1st) was 1.25 (95% confidence interval, 1.10–1.41). Stratified analyses indicated that this association was primarily driven by cases diagnosed with squamous cell carcinoma. Notably, the risk associated with HK:XA was approximately 50% higher in groups with a high relative frequency of squamous cell carcinoma, i.e., men, former and current smokers. This risk of squamous cell carcinoma was present in both men and women regardless of smoking status.

Published
2017

7. Association Between Telomere Length and Risk of Cancer and Non-Neoplastic Diseases: A Mendelian Randomization Study

Author

Telomeres Mendelian Randomization Collaboration, Haycock, Philip C, Burgess, Stephen, Nounu, Aayah, Zheng, Jie, Okoli, George N, Bowden, Jack, Wade, Kaitlin Hazel, Timpson, Nicholas J, Evans, David M, Willeit, Peter, Aviv, Abraham, Gaunt, Tom R, Hemani, Gibran, Mangino, Massimo, Ellis, Hayley Patricia, Kurian, Kathreena M, Pooley, Karen A, Eeles, Rosalind A, Lee, Jeffrey E, Fang, Shenying, Chen, Wei V, Law, Matthew H, Bowdler, Lisa M, Iles, Mark M, Yang, Qiong, Worrall, Bradford B, Markus, Hugh Stephen, Hung, Rayjean J, Amos, Chris I, Spurdle, Amanda B, Thompson, Deborah J, O'Mara, Tracy A, Wolpin, Brian, Amundadottir, Laufey, Stolzenberg-Solomon, Rachael, Trichopoulou, Antonia, Onland-Moret, N Charlotte, Lund, Eiliv, Duell, Eric J, Canzian, Federico, Severi, Gianluca, Overvad, Kim, Gunter, Marc J, Tumino, Rosario, Svenson, Ulrika, van Rij, Andre, Baas, Annette F, Bown, Matthew J, Samani, Nilesh J, van t'Hof, Femke NG, Tromp, Gerard, Jones, Gregory T, Kuivaniemi, Helena, Elmore, James R, Johansson, Mattias, Mckay, James, Scelo, Ghislaine, Carreras-Torres, Robert, Gaborieau, Valerie, Brennan, Paul, Bracci, Paige M, Neale, Rachel E, Olson, Sara H, Gallinger, Steven, Li, Donghui, Petersen, Gloria M, Risch, Harvey A, Klein, Alison P, Han, Jiali, Abnet, Christian C, Freedman, Neal D, Taylor, Philip R, Maris, John M, Aben, Katja K, Kiemeney, Lambertus A, Vermeulen, Sita H, Wiencke, John K, Walsh, Kyle M, Wrensch, Margaret, Rice, Terri, Turnbull, Clare, Litchfield, Kevin, Paternoster, Lavinia, Standl, Marie, Abecasis, Gonçalo R, SanGiovanni, John Paul, Li, Yong, Mijatovic, Vladan, Sapkota, Yadav, Low, Siew-Kee, Zondervan, Krina T, Montgomery, Grant W, Nyholt, Dale R, van Heel, David A, Hunt, Karen, Arking, Dan E, Ashar, Foram N, Sotoodehnia, Nona, and Woo, Daniel

Subjects
Adult, Male, Oncology and Carcinogenesis, and over, Risk Assessment, Rare Diseases, Telomeres Mendelian Randomization Collaboration, Clinical Research, Neoplasms, 80 and over, Genetics, Humans, 2.1 Biological and endogenous factors, Genetic Predisposition to Disease, Aetiology, Polymorphism, Germ-Line Mutation, Aged, Cancer, Prevention, Telomere Homeostasis, Single Nucleotide, Telomere, Middle Aged, Mendelian Randomization Analysis, Cardiovascular Diseases, Public Health and Health Services, Female, Genome-Wide Association Study
Abstract

ImportanceThe causal direction and magnitude of the association between telomere length and incidence of cancer and non-neoplastic diseases is uncertain owing to the susceptibility of observational studies to confounding and reverse causation.ObjectiveTo conduct a Mendelian randomization study, using germline genetic variants as instrumental variables, to appraise the causal relevance of telomere length for risk of cancer and non-neoplastic diseases.Data sourcesGenomewide association studies (GWAS) published up to January 15, 2015.Study selectionGWAS of noncommunicable diseases that assayed germline genetic variation and did not select cohort or control participants on the basis of preexisting diseases. Of 163 GWAS of noncommunicable diseases identified, summary data from 103 were available.Data extraction and synthesisSummary association statistics for single nucleotide polymorphisms (SNPs) that are strongly associated with telomere length in the general population.Main outcomes and measuresOdds ratios (ORs) and 95% confidence intervals (CIs) for disease per standard deviation (SD) higher telomere length due to germline genetic variation.ResultsSummary data were available for 35 cancers and 48 non-neoplastic diseases, corresponding to 420 081 cases (median cases, 2526 per disease) and 1 093 105 controls (median, 6789 per disease). Increased telomere length due to germline genetic variation was generally associated with increased risk for site-specific cancers. The strongest associations (ORs [95% CIs] per 1-SD change in genetically increased telomere length) were observed for glioma, 5.27 (3.15-8.81); serous low-malignant-potential ovarian cancer, 4.35 (2.39-7.94); lung adenocarcinoma, 3.19 (2.40-4.22); neuroblastoma, 2.98 (1.92-4.62); bladder cancer, 2.19 (1.32-3.66); melanoma, 1.87 (1.55-2.26); testicular cancer, 1.76 (1.02-3.04); kidney cancer, 1.55 (1.08-2.23); and endometrial cancer, 1.31 (1.07-1.61). Associations were stronger for rarer cancers and at tissue sites with lower rates of stem cell division. There was generally little evidence of association between genetically increased telomere length and risk of psychiatric, autoimmune, inflammatory, diabetic, and other non-neoplastic diseases, except for coronary heart disease (OR, 0.78 [95% CI, 0.67-0.90]), abdominal aortic aneurysm (OR, 0.63 [95% CI, 0.49-0.81]), celiac disease (OR, 0.42 [95% CI, 0.28-0.61]) and interstitial lung disease (OR, 0.09 [95% CI, 0.05-0.15]).Conclusions and relevanceIt is likely that longer telomeres increase risk for several cancers but reduce risk for some non-neoplastic diseases, including cardiovascular diseases.

Published
2017

8. Quantification of the smoking-associated cancer risk with rate advancement periods: meta-analysis of individual participant data from cohorts of the CHANCES consortium

Author

Ordóñez-Mena, José Manuel, Schöttker, Ben, Mons, Ute, Jenab, Mazda, Freisling, Heinz, Bueno-de-Mesquita, Bas, O’Doherty, Mark G., Scott, Angela, Kee, Frank, Stricker, Bruno H., Hofman, Albert, de Keyser, Catherine E., Ruiter, Rikje, Söderberg, Stefan, Jousilahti, Pekka, Kuulasmaa, Kari, Freedman, Neal D., Wilsgaard, Tom, de Groot, Lisette CPGM, Kampman, Ellen, Håkansson, Niclas, Orsini, Nicola, Wolk, Alicja, Nilsson, Lena Maria, Tjønneland, Anne, Pająk, Andrzej, Malyutina, Sofia, Kubínová, Růžena, Tamosiunas, Abdonas, Bobak, Martin, Katsoulis, Michail, Orfanos, Philippos, Boffetta, Paolo, Trichopoulou, Antonia, Brenner, Hermann, and on behalf of the Consortium on Health and Ageing: Network of Cohorts in Europe and the United States (CHANCES)

Subjects
Meta-analysis, Incidence, Smoking, Cohort, Mortality, Cancer
Abstract

Background: Smoking is the most important individual risk factor for many cancer sites but its association with breast and prostate cancer is not entirely clear. Rate advancement periods (RAPs) may enhance communication of smoking related risk to the general population. Thus, we estimated RAPs for the association of smoking exposure (smoking status, time since smoking cessation, smoking intensity, and duration) with total and site-specific (lung, breast, colorectal, prostate, gastric, head and neck, and pancreatic) cancer incidence and mortality.Methods: This is a meta-analysis of 19 population-based prospective cohort studies with individual participant data for 897,021 European and American adults. For each cohort we calculated hazard ratios (HRs) for the association of smoking exposure with cancer outcomes using Cox regression adjusted for a common set of the most important potential confounding variables. RAPs (in years) were calculated as the ratio of the logarithms of the HRs for a given smoking exposure variable and age. Meta-analyses were employed to summarize cohort-specific HRs and RAPs.Results: Overall, 140,205 subjects had a first incident cancer, and 53,164 died from cancer, during an average follow-up of 12 years. Current smoking advanced the overall risk of developing and dying from cancer by eight and ten years, respectively, compared with never smokers. The greatest advancements in cancer risk and mortality were seen for lung cancer and the least for breast cancer. Smoking cessation was statistically significantly associated with delays in the risk of cancer development and mortality compared with continued smoking.Conclusions: This investigation shows that smoking, even among older adults, considerably advances, and cessation delays, the risk of developing and dying from cancer. These findings may be helpful in more effectively communicating the harmful effects of smoking and the beneficial effect of smoking cessation.

Published
2016

9. Female chromosome X mosaicism is age-related and preferentially affects the inactivated X chromosome

Author

Machiela, Mitchell J, Zhou, Weiyin, Karlins, Eric, Sampson, Joshua N, Freedman, Neal D, Yang, Qi, Hicks, Belynda, Dagnall, Casey, Hautman, Christopher, Jacobs, Kevin B, Abnet, Christian C, Aldrich, Melinda C, Amos, Christopher, Amundadottir, Laufey T, Arslan, Alan A, Beane-Freeman, Laura E, Berndt, Sonja I, Black, Amanda, Blot, William J, Bock, Cathryn H, Bracci, Paige M, Brinton, Louise A, Bueno-de-Mesquita, H Bas, Burdett, Laurie, Buring, Julie E, Butler, Mary A, Canzian, Federico, Carreon, Tania, Chaffee, Kari G, Chang, I-Shou, Chatterjee, Nilanjan, Chen, Chu, Chen, Constance, Chen, Kexin, Chung, Charles C, Cook, Linda S, Bou, Marta Crous, Cullen, Michael, Davis, Faith G, De Vivo, Immaculata, Ding, Ti, Doherty, Jennifer, Duell, Eric J, Epstein, Caroline G, Fan, Jin-Hu, Figueroa, Jonine D, Fraumeni, Joseph F, Friedenreich, Christine M, Fuchs, Charles S, Gallinger, Steven, Gao, Yu-Tang, Gapstur, Susan M, Garcia-Closas, Montserrat, Gaudet, Mia M, Gaziano, J Michael, Giles, Graham G, Gillanders, Elizabeth M, Giovannucci, Edward L, Goldin, Lynn, Goldstein, Alisa M, Haiman, Christopher A, Hallmans, Goran, Hankinson, Susan E, Harris, Curtis C, Henriksson, Roger, Holly, Elizabeth A, Hong, Yun-Chul, Hoover, Robert N, Hsiung, Chao A, Hu, Nan, Hu, Wei, Hunter, David J, Hutchinson, Amy, Jenab, Mazda, Johansen, Christoffer, Khaw, Kay-Tee, Kim, Hee Nam, Kim, Yeul Hong, Kim, Young Tae, Klein, Alison P, Klein, Robert, Koh, Woon-Puay, Kolonel, Laurence N, Kooperberg, Charles, Kraft, Peter, Krogh, Vittorio, Kurtz, Robert C, LaCroix, Andrea, Lan, Qing, Landi, Maria Teresa, Le Marchand, Loic, Li, Donghui, Liang, Xiaolin, Liao, Linda M, Lin, Dongxin, Liu, Jianjun, Lissowska, Jolanta, Lu, Lingeng, Magliocco, Anthony M, and Malats, Nuria

Published
2016

10. Characterization of large structural genetic mosaicism in human autosomes

Author

Machiela, Mitchell J, Zhou, Weiyin, Sampson, Joshua N, Dean, Michael C, Jacobs, Kevin B, Black, Amanda, Brinton, Louise A, Chang, I-Shou, Chen, Chu, Chen, Constance, Chen, Kexin, Cook, Linda S, Crous Bou, Marta, De Vivo, Immaculata, Doherty, Jennifer, Friedenreich, Christine M, Gaudet, Mia M, Haiman, Christopher A, Hankinson, Susan E, Hartge, Patricia, Henderson, Brian E, Hong, Yun-Chul, Hosgood, H Dean, Hsiung, Chao A, Hu, Wei, Hunter, David J, Jessop, Lea, Kim, Hee Nam, Kim, Yeul Hong, Kim, Young Tae, Klein, Robert, Kraft, Peter, Lan, Qing, Lin, Dongxin, Liu, Jianjun, Le Marchand, Loic, Liang, Xiaolin, Lissowska, Jolanta, Lu, Lingeng, Magliocco, Anthony M, Matsuo, Keitaro, Olson, Sara H, Orlow, Irene, Park, Jae Yong, Pooler, Loreall, Prescott, Jennifer, Rastogi, Radhai, Risch, Harvey A, Schumacher, Fredrick, Seow, Adeline, Setiawan, Veronica Wendy, Shen, Hongbing, Sheng, Xin, Shin, Min-Ho, Shu, Xiao-Ou, VanDen Berg, David, Wang, Jiu-Cun, Wentzensen, Nicolas, Wong, Maria Pik, Wu, Chen, Wu, Tangchun, Wu, Yi-Long, Xia, Lucy, Yang, Hannah P, Yang, Pan-Chyr, Zheng, Wei, Zhou, Baosen, Abnet, Christian C, Albanes, Demetrius, Aldrich, Melinda C, Amos, Christopher, Amundadottir, Laufey T, Berndt, Sonja I, Blot, William J, Bock, Cathryn H, Bracci, Paige M, Burdett, Laurie, Buring, Julie E, Butler, Mary A, Carreón, Tania, Chatterjee, Nilanjan, Chung, Charles C, Cook, Michael B, Cullen, Michael, Davis, Faith G, Ding, Ti, Duell, Eric J, Epstein, Caroline G, Fan, Jin-Hu, Figueroa, Jonine D, Fraumeni, Joseph F, Freedman, Neal D, Fuchs, Charles S, Gao, Yu-Tang, Gapstur, Susan M, Patiño-Garcia, Ana, Garcia-Closas, Montserrat, Gaziano, J Michael, Giles, Graham G, and Gillanders, Elizabeth M

Subjects
Chromosome Aberrations, Male, Genetics & Heredity, Medical And Health Sciences, Genome, Genotype, Mosaicism, Human Genome, Middle Aged, Biological Sciences, Clinical Research, Neoplasms, Genetics, 2.1 Biological and endogenous factors, Humans, Female, Aetiology, Human, Aged, Genome-Wide Association Study
Abstract

Analyses of genome-wide association study (GWAS) data have revealed that detectable genetic mosaicism involving large (>2 Mb) structural autosomal alterations occurs in a fraction of individuals. We present results for a set of 24,849 genotyped individuals (total GWAS set II [TGSII]) in whom 341 large autosomal abnormalities were observed in 168 (0.68%) individuals. Merging data from the new TGSII set with data from two prior reports (the Gene-Environment Association Studies and the total GWAS set I) generated a large dataset of 127,179 individuals; we then conducted a meta-analysis to investigate the patterns of detectable autosomal mosaicism (n = 1,315 events in 925 [0.73%] individuals). Restricting to events >2 Mb in size, we observed an increase in event frequency as event size decreased. The combined results underscore that the rate of detectable mosaicism increases with age (p value = 5.5 × 10(-31)) and is higher in men (p value = 0.002) but lower in participants of African ancestry (p value = 0.003). In a subset of 47 individuals from whom serial samples were collected up to 6 years apart, complex changes were noted over time and showed an overall increase in the proportion of mosaic cells as age increased. Our large combined sample allowed for a unique ability to characterize detectable genetic mosaicism involving large structural events and strengthens the emerging evidence of non-random erosion of the genome in the aging population.

Published
2015

11. Imputation and subset-based association analysis across different cancer types identifies multiple independent risk loci in the TERT-CLPTM1L region on chromosome 5p15.33

Author

Wang, Zhaoming, Zhu, Bin, Zhang, Mingfeng, Parikh, Hemang, Jia, Jinping, Chung, Charles C, Sampson, Joshua N, Hoskins, Jason W, Hutchinson, Amy, Burdette, Laurie, Ibrahim, Abdisamad, Hautman, Christopher, Raj, Preethi S, Abnet, Christian C, Adjei, Andrew A, Ahlbom, Anders, Albanes, Demetrius, Allen, Naomi E, Ambrosone, Christine B, Aldrich, Melinda, Amiano, Pilar, Amos, Christopher, Andersson, Ulrika, Andriole, Gerald, Andrulis, Irene L, Arici, Cecilia, Arslan, Alan A, Austin, Melissa A, Baris, Dalsu, Barkauskas, Donald A, Bassig, Bryan A, Beane Freeman, Laura E, Berg, Christine D, Berndt, Sonja I, Bertazzi, Pier Alberto, Biritwum, Richard B, Black, Amanda, Blot, William, Boeing, Heiner, Boffetta, Paolo, Bolton, Kelly, Boutron-Ruault, Marie-Christine, Bracci, Paige M, Brennan, Paul, Brinton, Louise A, Brotzman, Michelle, Bueno-de-Mesquita, H Bas, Buring, Julie E, Butler, Mary Ann, Cai, Qiuyin, Cancel-Tassin, Geraldine, Canzian, Federico, Cao, Guangwen, Caporaso, Neil E, Carrato, Alfredo, Carreon, Tania, Carta, Angela, Chang, Gee-Chen, Chang, I-Shou, Chang-Claude, Jenny, Che, Xu, Chen, Chien-Jen, Chen, Chih-Yi, Chen, Chung-Hsing, Chen, Constance, Chen, Kuan-Yu, Chen, Yuh-Min, Chokkalingam, Anand P, Chu, Lisa W, Clavel-Chapelon, Francoise, Colditz, Graham A, Colt, Joanne S, Conti, David, Cook, Michael B, Cortessis, Victoria K, Crawford, E David, Cussenot, Olivier, Davis, Faith G, De Vivo, Immaculata, Deng, Xiang, Ding, Ti, Dinney, Colin P, Di Stefano, Anna Luisa, Diver, W Ryan, Duell, Eric J, Elena, Joanne W, Fan, Jin-Hu, Feigelson, Heather Spencer, Feychting, Maria, Figueroa, Jonine D, Flanagan, Adrienne M, Fraumeni, Joseph F, Freedman, Neal D, Fridley, Brooke L, Fuchs, Charles S, Gago-Dominguez, Manuela, Gallinger, Steven, Gao, Yu-Tang, Gapstur, Susan M, and Garcia-Closas, Montserrat

Subjects
Risk, Male, Medical and Health Sciences, Chromosomes, Genetic, Gene Frequency, Clinical Research, Neoplasms, Odds Ratio, Genetics, Humans, 2.1 Biological and endogenous factors, Genetic Predisposition to Disease, Polymorphism, Aetiology, Telomerase, Alleles, Cancer, Genetics & Heredity, Neoplastic, Prevention, Human Genome, Membrane Proteins, Computational Biology, Single Nucleotide, DNA Methylation, Biological Sciences, Neoplasm Proteins, Gene Expression Regulation, Genetic Loci, Female, Pair 5, Human, Epigenesis, Genome-Wide Association Study
Abstract

Genome-wide association studies (GWAS) have mapped risk alleles for at least 10 distinct cancers to a small region of 63 000 bp on chromosome 5p15.33. This region harbors the TERT and CLPTM1L genes; the former encodes the catalytic subunit of telomerase reverse transcriptase and the latter may play a role in apoptosis. To investigate further the genetic architecture of common susceptibility alleles in this region, we conducted an agnostic subset-based meta-analysis (association analysis based on subsets) across six distinct cancers in 34 248 cases and 45 036 controls. Based on sequential conditional analysis, we identified as many as six independent risk loci marked by common single-nucleotide polymorphisms: five in the TERT gene (Region 1: rs7726159, P = 2.10 × 10(-39); Region 3: rs2853677, P = 3.30 × 10(-36) and PConditional = 2.36 × 10(-8); Region 4: rs2736098, P = 3.87 × 10(-12) and PConditional = 5.19 × 10(-6), Region 5: rs13172201, P = 0.041 and PConditional = 2.04 × 10(-6); and Region 6: rs10069690, P = 7.49 × 10(-15) and PConditional = 5.35 × 10(-7)) and one in the neighboring CLPTM1L gene (Region 2: rs451360; P = 1.90 × 10(-18) and PConditional = 7.06 × 10(-16)). Between three and five cancers mapped to each independent locus with both risk-enhancing and protective effects. Allele-specific effects on DNA methylation were seen for a subset of risk loci, indicating that methylation and subsequent effects on gene expression may contribute to the biology of risk variants on 5p15.33. Our results provide strong support for extensive pleiotropy across this region of 5p15.33, to an extent not previously observed in other cancer susceptibility loci.

Published
2014

12. The influence of obesity-related factors in the etiology of renal cell carcinoma-A mendelian randomization study

Author

Johansson, Mattias, Carreras-Torres, Robert, Scelo, Ghislaine, Purdue, Mark P, Mariosa, Daniela, Muller, David C, Timpson, Nicolas J, Haycock, Philip C, Brown, Kevin M, Wang, Zhaoming, Ye, Yuanqing, Hofmann, Jonathan N, Foll, Matthieu, Gaborieau, Valerie, Machiela, Mitchell J, Colli, Leandro M, Li, Peng, Garnier, Jean-Guillaume, Blanche, Helene, Boland, Anne, Burdette, Laurie, Prokhortchouk, Egor, Skryabin, Konstantin G, Yeager, Meredith, Radojevic-Skodric, Sanja, Ognjanovic, Simona, Foretova, Lenka, Holcatova, Ivana, Janout, Vladimir, Mates, Dana, Mukeriya, Anush, Rascu, Stefan, Zaridze, David, Bencko, Vladimir, Cybulski, Cezary, Fabianova, Eleonora, Jinga, Viorel, Lissowska, Jolanta, Lubinski, Jan, Navratilova, Marie, Rudnai, Peter, Benhamou, Simone, Cancel-Tassin, Geraldine, Cussenot, Olivier, Weiderpass, Elisabete, Ljungberg, Börje, Tumkur Sitaram, Raviprakash, Häggström, Christel, Bruinsma, Fiona, Jordan, Susan J, Severi, Gianluca, Winship, Ingrid, Hveem, Kristian, Vatten, Lars J, Fletcher, Tony, Larsson, Susanna C, Wolk, Alicja, Banks, Rosamonde E, Selby, Peter J, Easton, Douglas F, Andreotti, Gabriella, Beane Freeman, Laura E, Koutros, Stella, Männistö, Satu, Weinstein, Stephanie, Clark, Peter E, Edwards, Todd L, Lipworth, Loren, Gapstur, Susan M, Stevens, Victoria L, Carol, Hallie, Freedman, Matthew L, Pomerantz, Mark M, Cho, Eunyoung, Wilson, Kathryn M, Gaziano, J Michael, Sesso, Howard D, Freedman, Neal D, Parker, Alexander S, Eckel-Passow, Jeanette E, Huang, Wen-Yi, Kahnoski, Richard J, Lane, Brian R, Noyes, Sabrina L, Petillo, David, Teh, Bin Tean, Peters, Ulrike, White, Emily, Anderson, Garnet L, Johnson, Lisa, Luo, Juhua, Buring, Julie, Lee, I-Min, Chow, Wong-Ho, Moore, Lee E, Eisen, Timothy, Henrion, Marc, Larkin, James, Barman, Poulami, Leibovich, Bradley C, Choueiri, Toni K, Lathrop, G Mark, Deleuze, Jean-Francois, Gunter, Marc, McKay, James D, Wu, Xifeng, Houlston, Richard S, Chanock, Stephen J, Relton, Caroline, Richards, J Brent, Martin, Richard M, Davey Smith, George, and Brennan, Paul

Subjects
2. Zero hunger, Blood Glucose, Genetic Markers, Male, Blood Pressure, Mendelian Randomization Analysis, urologic and male genital diseases, Lipids, Kidney Neoplasms, Body Mass Index, Diabetes Mellitus, Type 2, Risk Factors, Humans, Insulin, Female, Obesity, Carcinoma, Renal Cell, Genome-Wide Association Study
Abstract

BACKGROUND: Several obesity-related factors have been associated with renal cell carcinoma (RCC), but it is unclear which individual factors directly influence risk. We addressed this question using genetic markers as proxies for putative risk factors and evaluated their relation to RCC risk in a mendelian randomization (MR) framework. This methodology limits bias due to confounding and is not affected by reverse causation. METHODS AND FINDINGS: Genetic markers associated with obesity measures, blood pressure, lipids, type 2 diabetes, insulin, and glucose were initially identified as instrumental variables, and their association with RCC risk was subsequently evaluated in a genome-wide association study (GWAS) of 10,784 RCC patients and 20,406 control participants in a 2-sample MR framework. The effect on RCC risk was estimated by calculating odds ratios (ORSD) for a standard deviation (SD) increment in each risk factor. The MR analysis indicated that higher body mass index increases the risk of RCC (ORSD: 1.56, 95% confidence interval [CI] 1.44-1.70), with comparable results for waist-to-hip ratio (ORSD: 1.63, 95% CI 1.40-1.90) and body fat percentage (ORSD: 1.66, 95% CI 1.44-1.90). This analysis further indicated that higher fasting insulin (ORSD: 1.82, 95% CI 1.30-2.55) and diastolic blood pressure (DBP; ORSD: 1.28, 95% CI 1.11-1.47), but not systolic blood pressure (ORSD: 0.98, 95% CI 0.84-1.14), increase the risk for RCC. No association with RCC risk was seen for lipids, overall type 2 diabetes, or fasting glucose. CONCLUSIONS: This study provides novel evidence for an etiological role of insulin in RCC, as well as confirmatory evidence that obesity and DBP influence RCC risk.

13. Detectable clonal mosaicism and its relationship to aging and cancer

Author

Jacobs, Kevin B., Yeager, Meredith, Zhou, Weiyin, Wacholder, Sholom, Wang, Zhaoming, Rodriguez-Santiago, Benjamin, Hutchinson, Amy, Deng, Xiang, Liu, Chenwei, Horner, Marie-Josephe, Cullen, Michael, Liao, Linda, Schwartz, Ann G., McNeill, Lorna H., Schwenn, Molly, Figueroa, Jonine D., Henderson, Brian E., Shu, Xiao-Ou, Zeleniuch-Jacquotte, Anne, Wiencke, John K., Gonzalez, Juan R., Gallinger, Steven, Fan, Jin-Hu, Thomas, Gilles, Wrensch, Margaret, Savage, Sharon A., Silverman, Debra T., Amos, Christopher I., Tang, Ze-Zhong, Sierrasesúmaga, Luis, Consonni, Dario, Albanes, Demetrius, Trichopoulos, Dimitrios, Olson, Sara H., Chow, Wong-Ho, Krogh, Vittorio, Beane Freeman, Laura, Kratz, Christian P., Holly, Elizabeth A., Blot, William J., Hallmans, Göran, Peters, Ulrike, Duell, Eric J., Brinton, Louise A., Yu, Herbert, Hoover, Robert N., Caporaso, Neil E ., Bertazzi, Pier Alberto, Chanock, Stephen J., Erickson, Ralph L., Elena, Joanne W., Visvanathan, Kala, Tobias, Geoffrey S., Rothman, Nathaniel, Gross, Myron D., Hassan, Manal, Chang, Kenneth, Cotterchio, Michelle, Johnson, Alison, Moore, Lee E., Rajaraman, Preetha, Purdue, Mark, Klein, Alison P., Wheeler, William, Wentzensen, Nicolas, Tjønneland, Anne, Arslan, Alan A., Petersen, Gloria, Chatterjee, Nilanjan, Canzian, Federico, Goggins, Michael, Landi, Maria Teresa, Kurtz, Robert C., Graubard, Barry I., Kovaks, Joseph, Marenne, Gaelle, Dean, Michael C., Giovannucci, Edward L., Wunder, Jay S., Andrulis, Irene L., Butler, Mary A., Jenab, Mazda, Bueno de Mesquita, H. Bas, Marchand, Loic Le, Carreon, Tania, Goldin, Lynn, Virtamo, Jarmo, Ruder, Avima M., Peplonska, Beata, Burdett, Laurie, Sampson, Joshua, Gorlick, Richard G., Fuchs, Charles S., Chung, Charles C., Barkauskas, Donald A., Taylor, Philip R., Haiman, Christopher A., Hunter, David J., Gapstur, Susan M., Giles, Graham G., White, Emily, Mendelsohn, Julie B., Zheng, Wei, Lissowska, Jolanta, Amundadottir, Laufey, Andersson, Ulrika, Davis, Faith G., Freedman, Neal D., Boutron-Ruault, Marie-Christine, LaCroix, Andrea, Rabe, Kari G., Hankinson, Susan E., Bracci, Paige M., McKean-Cowdin, Roberta, Weinstein, Stephanie J., Mandelson, Margaret T., Gao, Yu-Tang, Kolonel, Laurence N., Harris, Curtis C., Teras, Lauren T., Fraumeni Jr., Joseph F., Greene, Mark H., Sesso, Howard D., Mirabello, Lisa, Schwartz, Kendra L., Risch, Harvey A., Abnet, Christian C., Prokunina-Olsson, Ludmila, Garcia Closas, Montserrat, Michaud, Dominique S., Stevens, Victoria L., Signorello, Lisa B., Tucker, Margaret, Ding, Ti, Aldrich, Melinda C., Stram, Daniel, Kraft, Peter, Pérez Jurado, Luis A., Berg, Christine D., Hoffman Bolton, Judith A., Koh, Woon-Puay, Buring, Julie E., Ziegler, Regina G., Bock, Cathryn H., McWilliams, Robert R., Feychting, Maria, Goldstein, Alisa M., Hartge, Patricia, Johansen, Christoffer, Hu, Nan, Patiño García, Ana, Rotunno, Melissa, Gillanders, Elizabeth M., Rybicki, Benjamin A., Spitz, Margaret R., Riboli, Elio, Gaziano, J. Michael, Epstein, Caroline G., Khaw, Kay-Tee, Inskip, Peter D., Melin, Beatrice S., Severi, Gianluca, McGlynn, Katherine A., Wolpin, Brian M., Henriksson, Roger, Stolzenberg-Solomon, Rachael Z., Qiao, You-Lin, Gaudet, Mia M., Wu, Xifeng, Berndt, Sonja I., Yu, Kai, Hsing, Ann W., Landgren, Annelie, Wolk, Alicja, Xiang, Yong-Bing, Ahlbom, Anders, Cook, Michael B., Black, Amanda, Baris, Dalsu, Yuan, Jian-Min, Li, Donghui, Malats, Núria, Jiao, Li, Kogevinas, Manolis, Kooperberg, Charles, Villa, Olaya, Real, Francisco X., Zanetti, Krista A., and Schumacher, Fredrick

Subjects
Aging, Envelliment, Càncer, Cancer
Abstract

In an analysis of 31,717 cancer cases and 26,136 cancer-free controls from 13 genome-wide association studies, we observed large chromosomal abnormalities in a subset of clones in DNA obtained from blood or buccal samples. We observed mosaic abnormalities, either aneuploidy or copy-neutral loss of heterozygosity, of > 2 Mb in size in autosomes of 517 individuals (0.89%), with abnormal cell proportions of between 7% and 95%. In cancer-free individuals, frequency increased with age, from 0.23% under 50 years to 1.91% between 75 and 79 years (P = 4.8 x 10(-8)). Mosaic abnormalities were more frequent in individuals with solid tumors (0.97% versus 0.74% in cancer-free individuals; odds ratio (OR) = 1.25; P = 0.016), with stronger association with cases who had DNA collected before diagnosis or treatment (OR = 1.45; P = 0.0005). Detectable mosaicism was also more common in individuals for whom DNA was collected at least 1 year before diagnosis with leukemia compared to cancer-free individuals (OR = 35.4; P = 3.8 x 10(-11)). These findings underscore the time-dependent nature of somatic events in the etiology of cancer and potentially other late-onset diseases.

14. The influence of obesity-related factors in the etiology of renal cell carcinoma—A mendelian randomization study

Author

Elisabete Weiderpass, J. Brent Richards, Peter Selby, Emily White, Peng Li, Ghislaine Scelo, David C. Muller, Garnet L. Anderson, Nicholas J. Timpson, David Zaridze, Mattias Johansson, Poulami Barman, Laura E. Beane Freeman, Alexander S. Parker, Simone Benhamou, Mark P. Purdue, Ingrid Winship, Victoria L. Stevens, Wong-Ho Chow, Valerie Gaborieau, Neal D. Freedman, Jean-François Deleuze, Juhua Luo, Philip C Haycock, Kevin M. Brown, Todd L. Edwards, Jeanette E. Eckel-Passow, Tony Fletcher, Ulrike Peters, Anush Mukeriya, Christel Häggström, Fiona Bruinsma, Timothy Eisen, Richard J. Kahnoski, George Davey Smith, I-Min Lee, Laurie Burdette, Lisa Johnson, Hallie Carol, Alicja Wolk, Jolanta Lissowska, Zhaoming Wang, Stephen J. Chanock, Yuanqing Ye, Sabrina L. Noyes, Jan Lubinski, Marie Navratilova, Matthew L. Freedman, Xifeng Wu, Ivana Holcatova, Stella Koutros, Vladimir Janout, Richard S. Houlston, James D. McKay, Toni K. Choueiri, Anne Boland, Susanna C. Larsson, Rosamonde E. Banks, Gabriella Andreotti, Sanja Radojevic-Skodric, Egor Prokhortchouk, Eunyoung Cho, Stefan Rascu, Paul Brennan, Hélène Blanché, David Petillo, James Larkin, Konstantin G. Skryabin, Börje Ljungberg, Marc J. Gunter, Viorel Jinga, Howard D. Sesso, Matthieu Foll, Brian R. Lane, Peter Rudnai, Jean-Guillaume Garnier, J. Michael Gaziano, Geraldine Cancel-Tassin, Caroline L Relton, Julie E. Buring, Meredith Yeager, Raviprakash T. Sitaram, Kristian Hveem, Loren Lipworth, Olivier Cussenot, Bin Tean Teh, Robert Carreras-Torres, Peter E. Clark, Vladimir Bencko, Simona Ognjanovic, Mark Pomerantz, Stephanie J. Weinstein, Mitchell J. Machiela, G. Mark Lathrop, Dana Mates, Lenka Foretova, Gianluca Severi, Bradley C. Leibovich, Leandro M. Colli, Daniela Mariosa, Marc Henrion, Satu Männistö, Susan J. Jordan, Kathryn M. Wilson, Richard M. Martin, Eleonora Fabianova, Jonathan N. Hofmann, Lars J. Vatten, Susan M. Gapstur, Cezary Cybulski, Wen-Yi Huang, Douglas F. Easton, Lee E. Moore, Cancer Research UK, Carreras-Torres, Robert [0000-0002-2925-734X], Timpson, Nicolas J [0000-0002-7141-9189], Haycock, Philip C [0000-0001-5001-3350], Brown, Kevin M [0000-0002-8558-6711], Machiela, Mitchell J [0000-0001-6538-9705], Li, Peng [0000-0002-0682-9819], Radojevic-Skodric, Sanja [0000-0002-5395-8285], Holcatova, Ivana [0000-0002-1366-0337], Mates, Dana [0000-0002-6219-9807], Mukeriya, Anush [0000-0002-6847-9295], Fabianova, Eleonora [0000-0002-5519-8427], Jinga, Viorel [0000-0001-7632-5328], Cancel-Tassin, Geraldine [0000-0002-9583-6382], Cussenot, Olivier [0000-0002-9912-0533], Weiderpass, Elisabete [0000-0003-2237-0128], Bruinsma, Fiona [0000-0002-9356-2015], Jordan, Susan J [0000-0002-4566-1414], Severi, Gianluca [0000-0001-7157-419X], Winship, Ingrid [0000-0001-8535-6003], Fletcher, Tony [0000-0003-3385-200X], Larsson, Susanna C [0000-0003-0118-0341], Wolk, Alicja [0000-0001-7387-6845], Banks, Rosamonde E [0000-0002-0042-8715], Beane Freeman, Laura E [0000-0003-1294-4124], Weinstein, Stephanie [0000-0002-3834-1535], Edwards, Todd L [0000-0003-4318-6119], Gapstur, Susan M [0000-0002-1934-2110], Stevens, Victoria L [0000-0003-0259-4407], Carol, Hallie [0000-0001-8890-9785], Pomerantz, Mark M [0000-0003-4914-1157], Freedman, Neal D [0000-0003-0074-1098], Huang, Wen-Yi [0000-0002-4440-3368], Petillo, David [0000-0001-7234-4644], Anderson, Garnet L [0000-0001-5087-7837], Moore, Lee E [0000-0002-5957-8283], Henrion, Marc [0000-0003-1242-839X], Barman, Poulami [0000-0002-4604-9868], Choueiri, Toni K [0000-0002-9201-3217], McKay, James D [0000-0002-1787-3874], Richards, J Brent [0000-0002-3746-9086], Martin, Richard M [0000-0002-7992-7719], Davey Smith, George [0000-0002-1407-8314], Brennan, Paul [0000-0002-0518-8714], and Apollo - University of Cambridge Repository

Subjects
Blood Glucose, Male, Physiology, Epidemiology, Blood Pressure, Genome-wide association study, 030204 cardiovascular system & hematology, urologic and male genital diseases, Bioinformatics, Biochemistry, Vascular Medicine, Body Mass Index, Endocrinology, Mathematical and Statistical Techniques, 0302 clinical medicine, Risk Factors, Renal cell carcinoma, Medicine and Health Sciences, Insulin, Medicine, 030212 general & internal medicine, 2. Zero hunger, Cancer Risk Factors, Statistics, Public Health, Global Health, Social Medicine and Epidemiology, Mendelian Randomization Analysis, Genomics, 11 Medical And Health Sciences, General Medicine, Lipids, Kidney Neoplasms, 3. Good health, Oncology, Physiological Parameters, Physical Sciences, Female, ICEP, Research Article, Genetic Markers, medicine.medical_specialty, Research and Analysis Methods, Instrumental Variable Analysis, Carcinomas, 03 medical and health sciences, General & Internal Medicine, Mendelian randomization, Genome-Wide Association Studies, Genetics, Carcinoma, Humans, VDP::Medisinske Fag: 700, Obesity, Statistical Methods, Carcinoma, Renal Cell, Diabetic Endocrinology, Cancer och onkologi, business.industry, Body Weight, Renal Cell Carcinoma, Cancers and Neoplasms, Biology and Life Sciences, Computational Biology, Cancer, Human Genetics, Genome Analysis, medicine.disease, Hormones, VDP::Medical disciplines: 700, Genitourinary Tract Tumors, Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi, Diabetes Mellitus, Type 2, Medical Risk Factors, Cancer and Oncology, Etiology, business, Mathematics, Genome-Wide Association Study
Abstract

Background Several obesity-related factors have been associated with renal cell carcinoma (RCC), but it is unclear which individual factors directly influence risk. We addressed this question using genetic markers as proxies for putative risk factors and evaluated their relation to RCC risk in a mendelian randomization (MR) framework. This methodology limits bias due to confounding and is not affected by reverse causation. Methods and findings Genetic markers associated with obesity measures, blood pressure, lipids, type 2 diabetes, insulin, and glucose were initially identified as instrumental variables, and their association with RCC risk was subsequently evaluated in a genome-wide association study (GWAS) of 10,784 RCC patients and 20,406 control participants in a 2-sample MR framework. The effect on RCC risk was estimated by calculating odds ratios (ORSD) for a standard deviation (SD) increment in each risk factor. The MR analysis indicated that higher body mass index increases the risk of RCC (ORSD: 1.56, 95% confidence interval [CI] 1.44–1.70), with comparable results for waist-to-hip ratio (ORSD: 1.63, 95% CI 1.40–1.90) and body fat percentage (ORSD: 1.66, 95% CI 1.44–1.90). This analysis further indicated that higher fasting insulin (ORSD: 1.82, 95% CI 1.30–2.55) and diastolic blood pressure (DBP; ORSD: 1.28, 95% CI 1.11–1.47), but not systolic blood pressure (ORSD: 0.98, 95% CI 0.84–1.14), increase the risk for RCC. No association with RCC risk was seen for lipids, overall type 2 diabetes, or fasting glucose. Conclusions This study provides novel evidence for an etiological role of insulin in RCC, as well as confirmatory evidence that obesity and DBP influence RCC risk., Using mendelian randomization approaches, Paul Brennan and colleagues reveal an association between 12 obesity-related factors, including insulin and the development of renal cell carcinoma., Author summary Why was this study done? Traditional observational studies wherein putative risk factors are measured directly have found several obesity-related factors associated with increased risk of renal cell carcinoma (RCC). Traditional observational studies are subject to confounding and reverse causation and have not been able to disentangle which obesity-related risk factors directly influence RCC risk. This study used an alternative methodology commonly referred to as mendelian randomization (MR). MR circumvents many of the inherent limitations of traditional observational study by use of genetic proxies of putative risk factors when evaluating their associations with disease risk, as they are not subject to reverse causation and are less likely to be confounded by other risk factors. What did the researchers do and find? First, we used large-scale genome-wide association studies (GWAS) to identify genetic variants associated with obesity measures, blood pressure, lipids, type 2 diabetes, insulin, and glucose. Second, these genetic variants were used as proxies for the above-mentioned risk factors and evaluated in relation RCC risk using GWAS data from 10,000 RCC patients and 20,000 control participants. Based on these genetic data, we found that multiple measures of obesity, as well as diastolic blood pressure (DBP) and fasting insulin, are associated with RCC risk. In contrast, we found little evidence for an association with RCC risk for systolic blood pressure (SBP), circulating lipids, overall diabetes, or fasting glucose. What do these findings mean? This study provided robust and confirmatory evidence of an important role of obesity as an important risk factor of RCC. Further confirmatory evidence was found for elevated DBP as a risk factor of RCC, but it is not clear why DBP rather than SBP is important in RCC. The study, to our knowledge, provided novel evidence of an important role of circulating insulin in RCC etiology. This study provided some novel insights into the pathways involved in mediating the risk increase in RCC that is caused by obesity, most notably through insulin and DBP, but further research is needed to fully elucidate the important relationship between obesity and RCC.

Published
2019

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