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Novel mutations and sequence variants in exons 3-9 of human T Cell Factor-4 gene in sporadic rectal cancer patients stratified by microsatellite instability
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2007 (English)In: World Journal of Gastroenterology, ISSN 1007-9327, Vol. 13, no 27, 3747-3751 p.Article in journal (Refereed) Published
Abstract [en]

Aim: To establish the role of human T Cell Factor-4 (hTCF-4) gene exons 3-9 mutation status in association with sporadic rectal cancer with microsatellite instability (MSI). Methods: Microsatellite markers were genotyped in 93 sporadic rectal cancer patients. Eleven cases were found to be high-frequency MSI (MSI-H). Sequence analysis of the coding region of the exons 3-9 of hTCF-4 gene was carried out for the 11 MSI-H cases and 10 controls (5 microsatellite stability (MSS) cases and 5 cases with normal mucosa). The sequencing and MSI identification were used. Results: Several novel mutations and variants were revealed. In exon 4, one is a 4-position continuous alteration which caused amino acid change from Q131T and S132I (391insA, 392 G > A, 393 A > G and 395delC) and another nucleotide deletion (395delC) is present in MSI-H cases (5/10 and 4/10, respectively) but completely absent in the controls. Conclusion: Novel mutations in exon 4 of hTCF-4 gene were revealed in this study, which might be of importance in the pathogenesis of sporadic rectal cancer patients with MSI-H. © 2007 WJG. All rights reserved.

Place, publisher, year, edition, pages
2007. Vol. 13, no 27, 3747-3751 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-40435Local ID: 53243OAI: diva2:261284
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2011-01-11

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Sun, Xiao-Feng
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Faculty of Health SciencesOncologyDepartment of Oncology UHL
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