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Interpretation 373
Tier 3
APC
Variants
Primary Sites
Ovary
Tumor Types
Interpretation

The APC gene encodes a tumor suppressor protein that acts as an antagonist of the Wnt signaling pathway. APC promotes rapid degradation of beta-catenin and participates in Wnt signaling as a negative regulator. APC is also involved in other processes including cell migration, cell adhesion, transcriptional activation and apoptosis. Germline defects in this gene cause familial adenomatous polyposis (FAP), an autosomal dominant pre-malignant disease that usually progresses to malignancy. Disease-associated mutations tend to be clustered in a small region designated the mutation cluster region (MCR) and result in a truncated protein product. Somatic mutations in this gene may be observed in colorectal cancer (CRC), stomach cancer and desmoid tumors. Although APC mutations have been reported in ~2% of ovarian serous adenocarcinomas, further studies are needed to explore the clinical value of these mutations in ovarian cancers. Results should be interpreted in conjunction with other laboratory and clinical findings.

Citations
  1. Boman BM, et al. An APC:WNT Counter-Current-Like Mechanism Regulates Cell Division Along the Human Colonic Crypt Axis: A Mechanism That Explains How APC Mutations Induce Proliferative Abnormalities That Drive Colon Cancer Development. Front Oncol 2013;3():244
  2. Cancer Genome Atlas Research Network. Integrated genomic analyses of ovarian carcinoma. Nature 2011;474(7353):609-15
Last updated: 2017-02-06 20:00:54 UTC
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When using PMKB, please cite: Huang et al., JAMIA 2017


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