Rodriguez-Rojas LX, Candelo E, Pachajoa H, Garcia-Robledo JE, Nastasi-Catanese JA, Olave-Rodriguez JA, Zambrano AR. The Unique Spectrum of
MUTYH Germline Mutations in Colombian Patients with Extracolonic Carcinomas.
Appl Clin Genet 2023;
16:53-62. [PMID:
37096204 PMCID:
PMC10122495 DOI:
10.2147/tacg.s370416]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 03/10/2023] [Indexed: 04/26/2023] Open
Abstract
Background
Protein MUTYH, encoded by the gene MUTYH, is an important mismatch repair enzyme in the base-excision repair pathway of DNA repair. When genetically altered, different neoplastic conditions can arise. One of the widely known syndromes associated with MUTYH mutations is MUTYH-associated polyposis, a form of familial colorectal cancer syndrome. MUTYH may also be a driver in other familial cancer syndromes, as well as breast cancer and spontaneous cancer cases. However, some controversies about the role of these alterations in oncogenesis remain, especially when affected in a heterozygous way. Most available data on MUTYH mutations are on Caucasian patients.
Material and Methods
We analyzed a small cohort of non-Caucasian, Colombian cancer patients with MUTYH germline heterozygous mutations, clinical features suggestive of familial cancer, and extensive genetic studies with no other mutations and without MUTYH-associated polyposis.
Conclusion
With this case series, we intended to provide important data for the understanding of MUTYH as a possible driver of familial cancer, even when only heterozygous mutations are found.
Collapse