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Background

There have been many different mutations reported for the large adenomatous polyposis coli (APC) tumor suppressor gene. APC mutations result in inactivation of APC tumor suppressor action, allowing the progression of tumorigenesis. The present study utilized a highly efficient method to identify APC mutations and investigated the association between the APC genetic variants Y486Y, A545A, T1493T, and D1822V and susceptibility to oral squamous cell carcinoma (OSCC).

Methods

High-resolution melting (HRM) analysis was used to characterize APC mutations. Genomic DNA was extracted from 83 patient specimens of OSCC and 50 blood samples from healthy control subjects. The 14 exons and mutation cluster region of exon 15 were screened by HRM analysis. All mutations were confirmed by direct DNA sequencing.

Results

Three mutations and 4 single nucleotide polymorphisms (SNPs) were found in this study. The mutations were c.573T>C (Y191Y) in exon 5, c.1005A>G (L335L) in exon 9, and c.1488A>T (T496T) in exon 11. Two SNPs, c.4479G>A (T1493T) and c.5465A>T (D1822V), were located in exon 15, whereas c.1458T>C (Y486Y) and c.1635G>A (A545A) were located in exon 11 and 13, respectively. There was no observed association between OSCC risk and genotype for any of the 4 APC SNPs.

Conclusions

The mutation of APC is rare in Taiwanese patients with OSCC. HRM analysis is a reliable, accurate, and fast screening method for APC mutations."xsd:string
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http://purl.uniprot.org/citations/26447891http://purl.uniprot.org/core/author"Lin C.Y."xsd:string
http://purl.uniprot.org/citations/26447891http://purl.uniprot.org/core/author"Yang S.F."xsd:string
http://purl.uniprot.org/citations/26447891http://purl.uniprot.org/core/author"Chang J.G."xsd:string
http://purl.uniprot.org/citations/26447891http://purl.uniprot.org/core/author"Ho C.M."xsd:string
http://purl.uniprot.org/citations/26447891http://purl.uniprot.org/core/author"Chang Y.S."xsd:string
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http://purl.uniprot.org/citations/26447891http://purl.uniprot.org/core/title"High-resolution Melting Analysis for Gene Scanning of Adenomatous Polyposis Coli (APC) Gene With Oral Squamous Cell Carcinoma Samples."xsd:string
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