1. Associations between pancreatic expression quantitative traits and risk of pancreatic ductal adenocarcinoma
- Author
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John P. Neoptolemos, Krzysztof Jamroziak, Manuel Gentiluomo, Edita Kreivenaite, Oliver Strobel, Martin Lovecek, Núria Malats, Rita T. Lawlor, Angelica Macauda, Yogesh K. Vashist, Sabrina Gloria Giulia Testoni, Paolo Giorgio Arcidiacono, Raffaele Pezzilli, Gabriele Capurso, George Theodoropoulos, Andrea Szentesi, Giuseppe Vanella, Michael F. Nentwich, Pavel Vodicka, Luca Morelli, Audrius Ivanauskas, Angelo Andriulli, Giulia Martina Cavestro, Emanuele Federico Kauffmann, Renata Talar-Wojnarowska, Raffaella Alessia Zuppardo, Pavel Soucek, Viktor Hlavac, Daniele Campa, Laura Pistoni, PanGenEU Study Investigators, Evangelina López de Maturana, Milena Di Leo, Livia Archibugi, Maria Gazouli, Federico Canzian, Péter Hegyi, Cosimo Sperti, Anna Caterina Milanetto, László Gajdán, Domenica Gioffreda, Martin Oliverius, Beatrice Mohelnikova-Duchonova, Dania Bozzato, Maria Chiara Petrone, Stefano Landi, Thilo Hackert, Luca Pollina, Hermann Brenner, Ye Lu, Cristian Gheorghe, Daniela Basso, Giuseppe Malleo, Erika Darvasi, Ludmila Vodickova, Juozas Kupcinskas, Jakob R. Izbicki, Francesca Tavano, Pistoni, L., Gentiluomo, M., Lu, Y., de Maturana, E. L., Hlavac, V., Vanella, G., Darvasi, E., Milanetto, A. C., Oliverius, M., Vashist, Y., Leo, M. D., Mohelnikova-Duchonova, B., Talar-Wojnarowska, R., Gheorghe, C., Petrone, M. C., Strobel, O., Arcidiacono, P. G., Vodickova, L., Szentesi, A., Capurso, G., Gajdan, L., Malleo, G., Theodoropoulos, G. E., Basso, D., Soucek, P., Brenner, H., Lawlor, R. T., Morelli, L., Ivanauskas, A., Kauffmann, E. F., Macauda, A., Gazouli, M., Archibugi, L., Nentwich, M., Loveeek, M., Cavestro, G. M., Vodicka, P., Landi, S., Tavano, F., Sperti, C., Hackert, T., Kupcinskas, J., Pezzilli, R., Andriulli, A., Pollina, L., Kreivenaite, E., Gioffreda, D., Jamroziak, K., Hegyi, P., Izbicki, J. R., Testoni, S. G. G., Zuppardo, R. A., Bozzato, D., Neoptolemos, J. P., Malats, N., Canzian, F., and Campa, D.
- Subjects
0301 basic medicine ,Male ,Cancer Research ,endocrine system diseases ,Population ,Quantitative Trait Loci ,association study ,eQTLs ,pancreatic cancer ,single nucleotide polymorphisms ,Single-nucleotide polymorphism ,Genome-wide association study ,Locus (genetics) ,Biology ,Polymorphism, Single Nucleotide ,03 medical and health sciences ,0302 clinical medicine ,Pancreatic cancer ,medicine ,Humans ,Genetic Predisposition to Disease ,03.02. Klinikai orvostan ,Polymorphism ,Allele ,education ,Alleles ,Aged ,education.field_of_study ,Carcinoma, Pancreatic Ductal ,Case-Control Studies ,Female ,GTPase-Activating Proteins ,Middle Aged ,Pancreatic Neoplasms ,Genome-Wide Association Study ,Carcinoma ,Single Nucleotide ,General Medicine ,medicine.disease ,030104 developmental biology ,medicine.anatomical_structure ,Pancreatic Ductal ,030220 oncology & carcinogenesis ,Expression quantitative trait loci ,Cancer research ,Pancreas - Abstract
Pancreatic ductal adenocarcinoma (PDAC) is among the most lethal cancers. Its poor prognosis is predominantly due to the fact that most patients remain asymptomatic until the disease reaches an advanced stage, alongside the lack of early markers and screening strategies. A better understanding of PDAC risk factors is essential for the identification of groups at high risk in the population. Genome-wide association studies (GWAS) have been a powerful tool for detecting genetic variants associated with complex traits, including pancreatic cancer. By exploiting functional and GWAS data, we investigated the associations between polymorphisms affecting gene function in the pancreas (expression quantitative trait loci, eQTLs) and PDAC risk. In a two-phase approach, we analysed 13 713 PDAC cases and 43 784 controls and identified a genome-wide significant association between the A allele of the rs2035875 polymorphism and increased PDAC risk (P = 7.14 × 10−10). This allele is known to be associated with increased expression in the pancreas of the keratin genes KRT8 and KRT18, whose increased levels have been reported to correlate with various tumour cell characteristics. Additionally, the A allele of the rs789744 variant was associated with decreased risk of developing PDAC (P = 3.56 × 10–6). This single nucleotide polymorphism is situated in the SRGAP1 gene and the A allele is associated with higher expression of the gene, which in turn inactivates the cyclin-dependent protein 42 (CDC42) gene expression, thus decreasing the risk of PDAC. In conclusion, we present here a functional-based novel PDAC risk locus and an additional strong candidate supported by significant associations and plausible biological mechanisms.
- Published
- 2021