Common Genetic Variation In Cellular Transport Genes and Epithelial Ovarian Cancer (EOC) Risk
Defective cellular transport processes can lead to aberrant accumulation of trace elements, iron, small molecules and hormones in the cell, which in turn may promote the formation of reactive oxygen species, promoting DNA damage and aberrant expression of key regulatory cancer genes. As DNA damage a...
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Published in | PLOS ONE Vol. 10; no. 6; p. e0128106 |
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Main Authors | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
Public Library of Science (PLoS)
19.06.2015
Public Library of Science |
Subjects | |
Online Access | Get full text |
ISSN | 1932-6203 1932-6203 |
DOI | 10.1371/journal.pone.0128106 |
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Summary: | Defective cellular transport processes can lead to aberrant accumulation of trace elements, iron, small molecules and hormones in the cell, which in turn may promote the formation of reactive oxygen species, promoting DNA damage and aberrant expression of key regulatory cancer genes. As DNA damage and uncontrolled proliferation are hallmarks of cancer, including epithelial ovarian cancer (EOC), we hypothesized that inherited variation in the cellular transport genes contributes to EOC risk.
In total, DNA samples were obtained from 14,525 case subjects with invasive EOC and from 23,447 controls from 43 sites in the Ovarian Cancer Association Consortium (OCAC). Two hundred seventy nine SNPs, representing 131 genes, were genotyped using an Illumina Infinium iSelect BeadChip as part of the Collaborative Oncological Gene-environment Study (COGS). SNP analyses were conducted using unconditional logistic regression under a log-additive model, and the FDR q<0.2 was applied to adjust for multiple comparisons.
The most significant evidence of an association for all invasive cancers combined and for the serous subtype was observed for SNP rs17216603 in the iron transporter gene HEPH (invasive: OR = 0.85, P = 0.00026; serous: OR = 0.81, P = 0.00020); this SNP was also associated with the borderline/low malignant potential (LMP) tumors (P = 0.021). Other genes significantly associated with EOC histological subtypes (p<0.05) included the UGT1A (endometrioid), SLC25A45 (mucinous), SLC39A11 (low malignant potential), and SERPINA7 (clear cell carcinoma). In addition, 1785 SNPs in six genes (HEPH, MGST1, SERPINA, SLC25A45, SLC39A11 and UGT1A) were imputed from the 1000 Genomes Project and examined for association with INV EOC in white-European subjects. The most significant imputed SNP was rs117729793 in SLC39A11 (per allele, OR = 2.55, 95% CI = 1.5-4.35, p = 5.66x10-4).
These results, generated on a large cohort of women, revealed associations between inherited cellular transport gene variants and risk of EOC histologic subtypes. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 Conceived and designed the experiments: CMP GC JPT KL JD HYL EKA HSLJ PDP TAS YYT SAN SAG ANAM ELG SJR JMS ESI GCT AB HNH HAR HS DFE BLF JMC. Performed the experiments: CMP GC SJR JMC PDP KL EKA HSLJ. Analyzed the data: PDP HYL YYT JPT EKA GC XQ ZC AYC. Contributed reagents/materials/analysis tools: GC HYL JPT KLu JD EKA XQ YYT HSLJ ZC AYC JPW KA HAC NA FB HB EVB YTB MWB MB LB NB LAB ABW CHB RB IC KC JCC PJC LSK DWC JMC CC ADM AdB EDicks EDespierre JAD TD MD DFE DME RPE ABE PAF BLF YTG AGM GGG RG MTG JG PHarrington PHA AH FH MATH PHarter CKH EH SH AJakubowska AJensen BTJ BYK LEK MK LAK CK SKK JLAK CK SKKJ JK DLambrechts SLambrechts NDL AWL SLele AL JLubinski DAL DLiang BKL JLissowska KLMatsuo LJ LL LFAGM KM VMG JRM IMN UM RLM FM KBM LN RBN HN SN KO SHO IO SO RPW JP CLP TP LMP MCP EMP HAR BR MAR JHR AR IBR IKR HBS ES IS XOS YBS NS WS HS MCS LS SHT KLT PJT ILT AT SST AMvA RAV IV CSW SWG NW ASW KGW LRW AHW XW YLW HY WZ AZ HNH AB GCT ESI JMS SJR ELG ANAM SAG SAN TAS PDPP CMP. Wrote the paper: GC HYL JPT KLu JD EKA XQ YYT HSLJ ZC AYC JPW KA HAC NA FB HB EVB YTB MWB MB LB NB LAB ABW CHB RB IC KC JCC PJC LSK DWC JMC CC ADM AdB EDicks EDespierre JAD TD MD DFE DME RPE ABE PAF BLF YTG AGM GGG RG MTG JG PHarrington PHA AH FH MATH PHarter CKH EH SH AJakubowska AJensen BTJ BYK LEK MK LAK CK SKK JLAK CK SKKJ JK DLambrechts SLambrechts NDL AWL SLele AL JLubinski DAL DLiang BKL JLissowska KLMatsuo LJ LL LFAGM KM VMG JRM IMN UM RLM FM KBM LN RBN HN SN KO SHO IO SO RPW JP CLP TP LMP MCP EMP HAR BR MAR JHR AR IBR IKR HBS ES IS XOS YBS NS WS HS MCS LS SHT KLT PJT ILT AT SST AMvA RAV IV CSW SWG NW ASW KGW LRW AHW XW YLW HY WZ AZ HNH AB GCT ESI JMS SJR ELG ANAM SAG SAN TAS PDPP CMP. Competing Interests: The authors have declared that no competing interests exist |
ISSN: | 1932-6203 1932-6203 |
DOI: | 10.1371/journal.pone.0128106 |