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Porta M, Pumarega J, Amaral AFS, Genkinger JM, Camargo J, Mucci L, Alguacil J, Gasull M, Zhang X, Morales E, Iglesias M, Ogino S, Engel LS. Influence of KRAS mutations, persistent organic pollutants, and trace elements on survival from pancreatic ductal adenocarcinoma. ENVIRONMENTAL RESEARCH 2020; 190:109781. [PMID: 32791343 PMCID: PMC7689512 DOI: 10.1016/j.envres.2020.109781] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 05/02/2020] [Accepted: 06/02/2020] [Indexed: 05/09/2023]
Abstract
INTRODUCTION Reasons why pancreatic ductal adenocarcinoma (PDAC) continues to have poor survival are only partly known. No previous studies have analyzed the combined influence of KRAS mutations, persistent organic pollutants (POPs), and trace elements upon survival in PDAC or in any other human cancer. OBJECTIVE To analyze the individual and combined influence of KRAS mutations, POPs, and trace elements upon survival from PDAC. METHODS Incident cases of PDAC (n = 185) were prospectively identified in five hospitals in Eastern Spain in 1992-1995 and interviewed face-to-face during hospital admission. KRAS mutational status was determined from tumour tissue through polymerase chain reaction and artificial restriction fragment length polymorphism. Blood and toenail samples were obtained before treatment. Serum concentrations of POPs were analyzed by high-resolution gas chromatography with electron-capture detection. Concentrations of 12 trace elements were determined in toenail samples by inductively coupled plasma mass spectrometry. Multivariable Cox proportional hazards regression was used to assess prognostic associations. RESULTS Patients with a KRAS mutated tumor had a 70% higher risk of early death than patients with a KRAS wild-type PDAC (hazard ratio [HR] = 1.7, p = 0.026), adjusting for age, sex, and tumor stage. KRAS mutational status was only modestly and not statistically significantly associated with survival when further adjusting by treatment or by treatment intention. The beneficial effects of treatment remained unaltered when KRAS mutational status was taken into account, and treatment did not appear to be less effective in the subgroup of patients with a KRAS mutated tumor. POPs did not materially influence survival: the adjusted HR of the highest POP tertiles was near unity for all POPs. When considering the joint effect on survival of POPs and KRAS, patients with KRAS mutated tumors had modest and nonsignificant HRs (most HRs around 1.3 to 1.4). Higher concentrations of lead, cadmium, arsenic, vanadium, and aluminium were associated with better survival. When KRAS status, POPs, and trace elements were simultaneously considered along with treatment, only the latter was statistically significantly related to survival. CONCLUSIONS In this study based on molecular, clinical, and environmental epidemiology, KRAS mutational status, POPs, and trace elements were not adversely related to PDAC survival when treatment was simultaneously considered; only treatment was independently related to survival. The lack of adverse prognostic effects of POPs and metals measured at the time of diagnosis provide scientific and clinical reassurance on the effects of such exposures upon survival of patients with PDAC. The weak association with KRAS mutations contributes to the scant knowledge on the clinical implications of a genetic alteration highly frequent in PDAC.
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Affiliation(s)
- Miquel Porta
- School of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Hospital Del Mar Medical Research Institute (IMIM), Barcelona, Spain.
| | - José Pumarega
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Hospital Del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - André F S Amaral
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Jeanine M Genkinger
- Department of Epidemiology, Columbia University, New York, USA; Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, USA
| | - Judit Camargo
- School of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain; Hospital Del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - Lorelei Mucci
- Harvard Medical School, Harvard T. H. Chan School of Public Health, Brigham and Women's Hospital, Boston, USA
| | - Juan Alguacil
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Universidad de Huelva, Huelva, Spain
| | - Magda Gasull
- School of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Hospital Del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - Xuehong Zhang
- Harvard Medical School, Harvard T. H. Chan School of Public Health, Brigham and Women's Hospital, Boston, USA
| | - Eva Morales
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; IMIB-Arrixaca, Department of Public Health Sciences, University of Murcia
| | - Mar Iglesias
- School of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain; Hospital Del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - Shuji Ogino
- Harvard Medical School, Harvard T. H. Chan School of Public Health, Brigham and Women's Hospital, Boston, USA
| | - Lawrence S Engel
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, USA
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Gasull M, Pumarega J, Kiviranta H, Rantakokko P, Raaschou-Nielsen O, Bergdahl IA, Sandanger TM, Goñi F, Cirera L, Donat-Vargas C, Alguacil J, Iglesias M, Tjønneland A, Overvad K, Mancini FR, Boutron-Ruault MC, Severi G, Johnson T, Kühn T, Trichopoulou A, Karakatsani A, Peppa E, Palli D, Pala V, Tumino R, Naccarati A, Panico S, Verschuren M, Vermeulen R, Rylander C, Nøst TH, Rodríguez-Barranco M, Molinuevo A, Chirlaque MD, Ardanaz E, Sund M, Key T, Ye W, Jenab M, Michaud D, Matullo G, Canzian F, Kaaks R, Nieters A, Nöthlings U, Jeurnink S, Chajes V, Matejcic M, Gunter M, Aune D, Riboli E, Agudo A, Gonzalez CA, Weiderpass E, Bueno-de-Mesquita B, Duell EJ, Vineis P, Porta M. Methodological issues in a prospective study on plasma concentrations of persistent organic pollutants and pancreatic cancer risk within the EPIC cohort. ENVIRONMENTAL RESEARCH 2019; 169:417-433. [PMID: 30529143 DOI: 10.1016/j.envres.2018.11.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/16/2018] [Accepted: 11/18/2018] [Indexed: 05/04/2023]
Abstract
BACKGROUND The use of biomarkers of environmental exposure to explore new risk factors for pancreatic cancer presents clinical, logistic, and methodological challenges that are also relevant in research on other complex diseases. OBJECTIVES First, to summarize the main design features of a prospective case-control study -nested within the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort- on plasma concentrations of persistent organic pollutants (POPs) and pancreatic cancer risk. And second, to assess the main methodological challenges posed by associations among characteristics and habits of study participants, fasting status, time from blood draw to cancer diagnosis, disease progression bias, basis of cancer diagnosis, and plasma concentrations of lipids and POPs. Results from etiologic analyses on POPs and pancreatic cancer risk, and other analyses, will be reported in future articles. METHODS Study subjects were 1533 participants (513 cases and 1020 controls matched by study centre, sex, age at blood collection, date and time of blood collection, and fasting status) enrolled between 1992 and 2000. Plasma concentrations of 22 POPs were measured by gas chromatography - triple quadrupole mass spectrometry (GC-MS/MS). To estimate the magnitude of the associations we calculated multivariate-adjusted odds ratios by unconditional logistic regression, and adjusted geometric means by General Linear Regression Models. RESULTS There were differences among countries in subjects' characteristics (as age, gender, smoking, lipid and POP concentrations), and in study characteristics (as time from blood collection to index date, year of last follow-up, length of follow-up, basis of cancer diagnosis, and fasting status). Adjusting for centre and time of blood collection, no factors were significantly associated with fasting status. Plasma concentrations of lipids were related to age, body mass index, fasting, country, and smoking. We detected and quantified 16 of the 22 POPs in more than 90% of individuals. All 22 POPs were detected in some participants, and the smallest number of POPs detected in one person was 15 (median, 19) with few differences by country. The highest concentrations were found for p,p'-DDE, PCBs 153 and 180 (median concentration: 3371, 1023, and 810 pg/mL, respectively). We assessed the possible occurrence of disease progression bias (DPB) in eight situations defined by lipid and POP measurements, on one hand, and by four factors: interval from blood draw to index date, tumour subsite, tumour stage, and grade of differentiation, on the other. In seven of the eight situations results supported the absence of DPB. CONCLUSIONS The coexistence of differences across study centres in some design features and participant characteristics is of relevance to other multicentre studies. Relationships among subjects' characteristics and among such characteristics and design features may play important roles in the forthcoming analyses on the association between plasma concentrations of POPs and pancreatic cancer risk.
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Affiliation(s)
- Magda Gasull
- Hospital del Mar Institute of Medical Research (IMIM), Barcelona, Catalonia, Spain; Universitat Autònoma de Barcelona, Barcelona, Catalonia, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - José Pumarega
- Hospital del Mar Institute of Medical Research (IMIM), Barcelona, Catalonia, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Hannu Kiviranta
- National Institute for Health and Welfare, Department of Health Security, Kuopio, Finland
| | - Panu Rantakokko
- National Institute for Health and Welfare, Department of Health Security, Kuopio, Finland
| | | | - Ingvar A Bergdahl
- Department of Biobank Research, Umeå University, Umeå, Sweden; Occupational and Environmental Medicine, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | | | - Fernando Goñi
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Biodonostia Health Research Institute; Public Health Laboratory in Gipuzkoa, Basque Government, San Sebastian, Spain
| | - Lluís Cirera
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Department of Epidemiology, Murcia Regional Health Council, IMIB - Arrixaca, Murcia, Spain
| | | | - Juan Alguacil
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Universidad de Huelva, Huelva, Spain
| | - Mar Iglesias
- Department of Pathology, Hospital del Mar (PSMar), Barcelona, Spain
| | | | - Kim Overvad
- Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Francesca Romana Mancini
- CESP, Faculté de Médecine - Univ. Paris-Sud, Faculté de Médecine - UVSQ, INSERM, Université Paris-Saclay, Villejuif, France; Gustave Roussy, Villejuif, France
| | - Marie-Christine Boutron-Ruault
- CESP, Faculté de Médecine - Univ. Paris-Sud, Faculté de Médecine - UVSQ, INSERM, Université Paris-Saclay, Villejuif, France; Gustave Roussy, Villejuif, France
| | - Gianluca Severi
- CESP, Faculté de Médecine - Univ. Paris-Sud, Faculté de Médecine - UVSQ, INSERM, Université Paris-Saclay, Villejuif, France; Gustave Roussy, Villejuif, France
| | - Theron Johnson
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Tilman Kühn
- Hospital del Mar Institute of Medical Research (IMIM), Barcelona, Catalonia, Spain
| | | | - Anna Karakatsani
- Hellenic Health Foundation, Athens, Greece; 2nd Pulmonary Medicine Department, School of Medicine, National and Kapodistrian University of Athens, "ATTIKON" University Hospital, Haidari, Greece
| | | | - Domenico Palli
- Cancer Risk Factors and Life-Style Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network - ISPRO, Florence, Italy
| | - Valeria Pala
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Rosario Tumino
- Cancer Registry and Histopathology Department, "Civic - M.P. Arezzo" Hospital, ASP Ragusa, Italy
| | - Alessio Naccarati
- Molecular and Genetic Epidemiology Unit, Italian Institute for Genomic Medicine (IIGM), Turin, Italy
| | - Salvatore Panico
- Dipartimento di Medicina Clinica e Chirurgia, Federico II University, Naples, Italy
| | - Monique Verschuren
- Centre for Nutrition, Prevention and Health Services, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Roel Vermeulen
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, The Netherlands
| | - Charlotta Rylander
- Department of Community Medicine, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Therese Haugdahl Nøst
- Department of Community Medicine, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Miguel Rodríguez-Barranco
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Escuela Andaluza de Salud Pública. Instituto de Investigación Biosanitaria, Granada, Hospitales Universitarios de Granada/Universidad de Granada, Granada, Spain
| | - Amaia Molinuevo
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Biodonostia Health Research Institute; Public Health Laboratory in Gipuzkoa, Basque Government, San Sebastian, Spain
| | - María-Dolores Chirlaque
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Department of Epidemiology, Murcia Regional Health Council, IMIB - Arrixaca, Murcia, Spain; Department of Health and Social Sciences, University of Murcia, Murcia, Spain
| | - Eva Ardanaz
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Navarra Public Health Institute, Pamplona, Spain; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Malin Sund
- Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden
| | - Tim Key
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Weimin Ye
- Department of Biobank Research, Umeå University, Umeå, Sweden; Department of Medical Epidemiology and Biostatistics Karolinska Institutet, Stockholm, Sweden
| | - Mazda Jenab
- Nutrition and Metabolism Section, International Agency for Research on Cancer (IARC), Lyon, France
| | - Dominique Michaud
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
| | - Giuseppe Matullo
- Department Medical Sciences, University of Torino, Italian Institute for Genomic Medicine -IIGM/HuGeF, Torino, Italy
| | - Federico Canzian
- Genomic Epidemiology Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Alexandra Nieters
- Center for Chronic Immunodeficiency, Molecular Epidemiology, University Medical Center Freiburg, Freiburg, Germany
| | - Ute Nöthlings
- Department of Nutrition and Food Sciences, University of Bonn, Bonn, Germany
| | - Suzanne Jeurnink
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, the Netherlands; National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Veronique Chajes
- Nutrition and Metabolism Section, International Agency for Research on Cancer (IARC), Lyon, France
| | - Marco Matejcic
- Nutrition and Metabolism Section, International Agency for Research on Cancer (IARC), Lyon, France
| | - Marc Gunter
- Nutrition and Metabolism Section, International Agency for Research on Cancer (IARC), Lyon, France
| | - Dagfinn Aune
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
| | - Elio Riboli
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
| | - Antoni Agudo
- Unit of Nutrition and Cancer, Catalan Institute of Oncology (ICO-Idibell), Barcelona, Spain
| | | | - Elisabete Weiderpass
- Department of Community Medicine, UiT-The Arctic University of Norway, Tromsø, Norway; Department of Medical Epidemiology and Biostatistics Karolinska Institutet, Stockholm, Sweden; Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo, Norway; Genetic Epidemiology Group, Folkhälsan Research Center, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Bas Bueno-de-Mesquita
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom; National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands; Department of Social & Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Eric J Duell
- Unit of Nutrition and Cancer, Catalan Institute of Oncology (ICO-Idibell), Barcelona, Spain
| | - Paolo Vineis
- Molecular and Genetic Epidemiology Unit, Italian Institute for Genomic Medicine (IIGM), Turin, Italy; Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
| | - Miquel Porta
- Hospital del Mar Institute of Medical Research (IMIM), Barcelona, Catalonia, Spain; Universitat Autònoma de Barcelona, Barcelona, Catalonia, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.
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