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rs495139 in the TYMS-ENOSF1 region and risk of ovarian carcinoma of mucinous histology


Thymidylate synthase (TYMS) is a crucial enzyme for DNA synthesis. TYMS expression is regulated by its antisense mRNA, ENOSF1. Disrupted regulation may promote uncontrolled DNA synthesis and tumor growth. We sought to replicate our previously reported association between rs495139 in the TYMS-ENOSF1 3' gene region and increased risk of mucinous ovarian carcinoma (MOC) in an independent sample. Genotypes from 24,351 controls to 15,000 women with invasive OC, including 665 MOC, were available. We estimated per-allele odds ratios (OR) and 95% confidence intervals (CI) using unconditional logistic regression, and meta-analysis when combining these data with our previous report. The association between rs495139 and MOC was not significant in the independent sample (OR = 1.09; 95% CI = 0.97(-)1.22; p = 0.15; N = 665 cases). Meta-analysis suggested a weak association (OR = 1.13; 95% CI = 1.03(-)1.24; p = 0.01; N = 1019 cases). No significant association with risk of other OC histologic types was observed (p = 0.05 for tumor heterogeneity). In expression quantitative trait locus (eQTL) analysis, the rs495139 allele was positively associated with ENOSF1 mRNA expression in normal tissues of the gastrointestinal system, particularly esophageal mucosa (r = 0.51, p = 1.7 x 10(-28)), and nonsignificantly in five MOC tumors. The association results, along with inconclusive tumor eQTL findings, suggest that a true effect of rs495139 might be small.

Type Journal
ISBN 1422-0067
Authors Kelemen, L. E.; Earp, M.; Fridley, B. L.; Chenevix-Trench, G.; Fasching, P. A.; Beckmann, M. W.; Ekici, A. B.; Hein, A.; Lambrechts, D.; Lambrechts, S.; Van Nieuwenhuysen, E.; Vergote, I.; Rossing, M. A.; Doherty, J. A.; Chang-Claude, J.; Behrens, S.; Moysich, K. B.; Cannioto, R.; Lele, S.; Odunsi, K.; Goodman, M. T.; Shvetsov, Y. B.; Thompson, P. J.; Wilkens, L. R.; Dork, T.; Antonenkova, N.; Bogdanova, N.; Hillemanns, P.; Runnebaum, I. B.; du Bois, A.; Harter, P.; Heitz, F.; Schwaab, I.; Butzow, R.; Pelttari, L. M.; Nevanlinna, H.; Modugno, F.; Edwards, R. P.; Kelley, J. L.; Ness, R. B.; Karlan, B. Y.; Lester, J.; Orsulic, S.; Walsh, C.; Kjaer, S. K.; Jensen, A.; Cunningham, J. M.; Vierkant, R. A.; Giles, G. G.; Bruinsma, F.; Southey, M. C.; Hildebrandt, M. A. T.; Liang, D.; Lu, K.; Wu, X.; Sellers, T. A.; Levine, D. A.; Schildkraut, J. M.; Iversen, E. S.; Terry, K. L.; Cramer, D. W.; Tworoger, S. S.; Poole, E. M.; Bandera, E. V.; Olson, S. H.; Orlow, I.; Vestrheim Thomsen, L. C.; Bjorge, L.; Krakstad, C.; Tangen, I. L.; Kiemeney, L. A.; Aben, K. K. H.; Massuger, Lfag; van Altena, A. M.; Pejovic, T.; Bean, Y.; Kellar, M.; Cook, L. S.; Le, N. D.; Brooks-Wilson, A.; Gronwald, J.; Cybulski, C.; Jakubowska, A.; Lubinski, J.; Wentzensen, N.; Brinton, L. A.; Lissowska, J.; Hogdall, E.; Engelholm, S. A.; Hogdall, C.; Lundvall, L.; Nedergaard, L.; Pharoah, P. D. P.; Dicks, E.; Song, H.; Tyrer, J. P.; McNeish, I.; Siddiqui, N.; Carty, K.; Glasspool, R., et al.
Published Date 2018-08-21
Published Volume 19
Published Issue 9
Published Pages 2473
Status Always Electronic
DOI 10.3390/ijms19092473
URL link to publisher's version
OpenAccess link to author's accepted manuscript version