Common genetic variation in the sex hormone metabolic pathway and endometrial cancer risk: pathway-based evaluation of candidate genes

Hannah P Yang, Jesus Gonzalez Bosquet, Qizhai Li, Elizabeth A Platz, Louise A Brinton, Mark E Sherman, James V Lacey, Mia M Gaudet, Laurie A Burdette, Jonine D Figueroa, Julia G Ciampa, Jolanta Lissowska, Beata Peplonska, Stephen J Chanock, Montserrat Garcia-Closas

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

BACKGROUND: Estrogen plays a major role in endometrial carcinogenesis, suggesting that common variants of genes in the sex hormone metabolic pathway may be related to endometrial cancer risk. In support of this view, variants in CYP19A1 [cytochrome P450 (CYP), family 19, subfamily A, polypeptide 1] have been associated with both circulating estrogen levels and endometrial cancer risk. Associations with variants in other genes have been suggested, but findings have been inconsistent.

METHODS: We examined 36 sex hormone-related genes using a tagging approach in a population-based case-control study of 417 endometrial cancer cases and 407 controls conducted in Poland. We evaluated common variation in these genes in relation to endometrial cancer risk using sequential haplotype scan, variable-sized sliding window and adaptive rank-truncated product (ARTP) methods.

RESULTS: In our case-control study, the strongest association with endometrial cancer risk was for AR (androgen receptor; ARTP P = 0.006). Multilocus analyses also identified boundaries for a region of interest in AR and in CYP19A1 around a previously identified susceptibility loci. We did not find evidence for consistent associations between previously reported candidate single-nucleotide polymorphisms in this pathway and endometrial cancer risk.

DISCUSSION: In summary, we identified regions in AR and CYP19A1 that are of interest for further evaluation in relation to endometrial cancer risk in future haplotype and subsequent fine mapping studies in larger study populations.

Original languageEnglish
Pages (from-to)827-33
Number of pages7
JournalCarcinogenesis: Integrative Cancer Research
Issue number5
Publication statusPublished - May 2010

Keywords / Materials (for Non-textual outputs)

  • Adult
  • Aged
  • Aromatase
  • Case-Control Studies
  • Cytochrome P-450 CYP1A1
  • Endometrial Neoplasms
  • Estrogens
  • Female
  • Genetic Variation
  • Humans
  • Middle Aged
  • Polymorphism, Single Nucleotide
  • Receptors, Androgen
  • Risk


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