Shared genetics underlying epidemiological association between endometriosis and ovarian cancer

Lu, Y., Cuellar-Partida, G., Painter, J.N., Nyholt, D.R., Morris, A.P., Fasching, P.A., Hein, A., Burghaus, S., Beckmann, M.W., Lambrechts, D., Van Nieuwenhuysen, E., Vergote, I., Vanderstichele, A., Doherty, J.A., Rossing, M.A., Wicklund, K.G., Chang-Claude, J., Eilber, U., Rudolph, A., Wang-Gohrke, S., Goodman, M.T., Bogdanova, N., Dörk, T., Dürst, M., Hillemanns, P., Runnebaum, I.B., Antonenkova, N., Butzow, R., Leminen, A., Nevanlinna, H., Pelttari, L.M., Edwards, R.P., Kelley, J.L., Modugno, F., Moysich, K.B., Ness, R.B., Cannioto, R., Høgdall, E., Jensen, A., Giles, G.G., Bruinsma, F., Kjaer, S.K., Hildebrandt, M.A.T., Liang, D., Lu, K.H., Wu, X., Bisogna, M., Dao, F., Levine, D.A., Cramer, D.W., Terry, K.L., Tworoger, S.S., Missmer, S., Bjorge, L., Salvesen, H.B., Kopperud, R.K., Bischof, K., Aben, K.K.H., Kiemeney, L.A., Massuger, L.F.A.G., Brooks-Wilson, A., Olson, S.H., McGuire, V., Rothstein, J.H., Sieh, W., Whittemore, A.S., Cook, L.S., Le, N.D., BlakeGilks, C., Gronwald, J., Jakubowska, A., Lubiński, J., Gawełko, J., Song, H., Tyrer, J.P., Wentzensen, N., Brinton, L., Trabert, B., Lissowska, J., Mclaughlin, J.R., Narod, S.A., Phelan, C., Anton-Culver, H., Ziogas, A., Eccles, D., Gayther, S.A., Gentry-Maharaj, A., Menon, U., Ramus, S.J., Wu, A.H., Dansonka-Mieszkowska, A., Kupryjanczyk, J., Timorek, A., Szafron, L., Cunningham, J.M., Fridley, B.L., Winham, S.J., Bandera, E.V., Poole, E.M., Morgan, T.K., Risch, H.A., Goode, E.L., Schildkraut, J.M., Webb, P.M., Pearce, C.L., Berchuck, A., Pharoah, P.D.P., Montgomery, G.W., Zondervan, K.T., Chenevix-Trench, G., & MacGregor, S. (2015) Shared genetics underlying epidemiological association between endometriosis and ovarian cancer. Human Molecular Genetics, 24(20), pp. 5955-5964.

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Epidemiological studies have demonstrated associations between endometriosis and certain histotypes of ovarian cancer, including clear cell, low-grade serous and endometrioid carcinomas. We aimed to determine whether the observed associations might be due to shared genetic aetiology. To address this, we used two endometriosis datasets genotyped on common arrays with full-genome coverage (3194 cases and 7060 controls) and a large ovarian cancer dataset genotyped on the customized Illumina Infinium iSelect (iCOGS) arrays (10 065 cases and 21 663 controls). Previous work has suggested that a large number of genetic variants contribute to endometriosis and ovarian cancer (all histotypes combined) susceptibility. Here, using the iCOGS data, we confirmed polygenic architecture for most histotypes of ovarian cancer. This led us to evaluate if the polygenic effects are shared across diseases. We found evidence for shared genetic risks between endometriosis and all histotypes of ovarian cancer, except for the intestinal mucinous type. Clear cell carcinoma showed the strongest genetic correlation with endometriosis (0.51, 95% CI = 0.18–0.84). Endometrioid and low-grade serous carcinomas had similar correlation coefficients (0.48, 95% CI = 0.07–0.89 and 0.40, 95% CI = 0.05–0.75, respectively). High-grade serous carcinoma, which often arises from the fallopian tubes, showed a weaker genetic correlation with endometriosis (0.25, 95% CI = 0.11–0.39), despite the absence of a known epidemiological association. These results suggest that the epidemiological association between endometriosis and ovarian adenocarcinoma may be attributable to shared genetic susceptibility loci.

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13 citations in Web of Science®
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ID Code: 91748
Item Type: Journal Article
Refereed: Yes
Keywords: adult, Article, clear cell carcinoma, controlled study, endometriosis, endometrium carcinoma, female, genetic association, genetic correlation, genetic risk, genetic susceptibility, genetic variability, genetics, genotype, heritability, human, major clinical study, ovary cancer, priority journal, uterine tube
DOI: 10.1093/hmg/ddv306
ISSN: 0964-6906
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2015 The Author
Deposited On: 11 Jan 2016 23:25
Last Modified: 26 Jun 2017 18:01

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