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Sawyer, E.; Roylance, R.; Petridis, C.; Brook, M.N.; Nowinski, S.; Papouli, E.; Fletcher, O.; Pinder, S.; Hanby, A.; Kohut, K.; Gorman, P.; Caneppele, M.; Peto, J.; Silva, I.D.S.; Johnson, N.; Swann, R.; Dwek, M.; Perkins, K-A.; Gillett, C.; Houlston, R.; Ross, G.; De Ieso, P.; Southey, M.C.; Hopper, J.L.; Provenzano, E.; Apicella, C.; Wesseling, J.; Cornelissen, S.; Keeman, R.; Fasching, P.A. ... view all 154 authors View less authors (2014)
Publisher: Public Library of Science
Languages: English
Types: Article
Subjects:

Classified by OpenAIRE into

mesheuropmc: body regions, skin and connective tissue diseases
Invasive lobular breast cancer (ILC) accounts for 10–15% of all invasive breast carcinomas. It is generally ER positive (ER+) and\ud often associated with lobular carcinoma in situ (LCIS). Genome-wide association studies have identified more than 70 common\ud polymorphisms that predispose to breast cancer, but these studies included predominantly ductal (IDC) carcinomas. To\ud identify novel common polymorphisms that predispose to ILC and LCIS, we pooled data from 6,023 cases (5,622 ILC, 401 pure\ud LCIS) and 34,271 controls from 36 studies genotyped using the iCOGS chip. Six novel SNPs most strongly associated with ILC/\ud LCIS in the pooled analysis were genotyped in a further 516 lobular cases (482 ILC, 36 LCIS) and 1,467 controls. These analyses\ud identified a lobular-specific SNP at 7q34 (rs11977670, OR (95%CI) for ILC = 1.13 (1.09–1.18), P = 6.0610210; P-het for ILC vs IDC\ud ER+ tumors = 1.861024\ud ). Of the 75 known breast cancer polymorphisms that were genotyped, 56 were associated with ILC and\ud 15 with LCIS at P,0.05. Two SNPs showed significantly stronger associations for ILC than LCIS (rs2981579/10q26/FGFR2, Phet\ud = 0.04 and rs889312/5q11/MAP3K1, P-het = 0.03); and two showed stronger associations for LCIS than ILC (rs6678914/1q32/\ud LGR6, P-het = 0.001 and rs1752911/6q14, P-het = 0.04). In addition, seven of the 75 known loci showed significant differences\ud between ER+ tumors with IDC and ILC histology, three of these showing stronger associations for ILC (rs11249433/1p11,\ud rs2981579/10q26/FGFR2 and rs10995190/10q21/ZNF365) and four associated only with IDC (5p12/rs10941679; rs2588809/\ud 14q24/RAD51L1, rs6472903/8q21 and rs1550623/2q31/CDCA7). In conclusion, we have identified one novel lobular breast\ud cancer specific predisposition polymorphism at 7q34, and shown for the first time that common breast cancer polymorphisms\ud predispose to LCIS. We have shown that many of the ER+ breast cancer predisposition loci also predispose to ILC, although\ud there is some heterogeneity between ER+ lobular and ER+ IDC tumors. These data provide evidence for overlapping, but\ud distinct etiological pathways within ER+ breast cancer between morphological subtypes.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

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  • WT | Understanding the genetic ba...
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