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:: Volume 23, Issue 6 (Bimonthly 2019) ::
Feyz Med Sci J 2019, 23(6): 672-678 Back to browse issues page
Identification of mutation in 3'-end of exon 15 of APC gene in familial adenomatous polyposis patients
Hadi Habibollahi * , Najmeh Ranji , Zeinab Khazaei-Koohpar , Hanieh Sadat Kamalifar
Department of Biology, Faculty of Sciences, Rasht Branch, Islamic Azad University, Rasht, I.R. Iran. , hhabibollahi@yahoo.com
Abstract:   (2499 Views)
Background: Familial adenomatous polyposis (FAP) is a hereditary precancerous syndrome and is characterized by the manifestation of adenomatous polyps in the colon and rectum at an early age. Germline mutations of APC gene cause FAP. This study aimed to investigate about the part of 3'-end of exon 15 of APC gene in FAP patients in Guilan, Ilam and Lorestan province in 2018.
Materials and Methods: In this descriptive cross-sectional study, 18 FAP patients were recognized and Blood sampling was done. After DNA extraction, a part 3'-end of exon 15 of APC gene was amplified by PCR method and underwent direct sequencing.
Results: In this study one nonsense mutation (c.4606G>T, p.E1536X) in a classic FAP patient and one missense mutation (c.5465T>A, p.V1822D) in an AFAP as homozygote and four classic FAP patients as heterozygote was observed. Also, four silent mutations p.T1493T, p.G1678G, p.S1756S and p.P1960P were identified in these FAP patients.
Conclusion: It seems that mutation E1536X is the main reason of disease in a patient with severe polyposis. Also, mutation V1822D as homozygous can cause AFAP; but for classic FAP development a more destructive mutation is needed along with this mutation.
Keywords: APC gene, Colorectal cancer, Familial adenomatous polyposis, Germinal mutation, Missense mutation
Full-Text [PDF 262 kb]   (836 Downloads)    
Type of Study: Research | Subject: General
Received: 2019/01/4 | Revised: 2020/02/17 | Accepted: 2019/10/28 | Published: 2020/02/12
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Habibollahi H, Ranji N, Khazaei-Koohpar Z, Kamalifar H S. Identification of mutation in 3'-end of exon 15 of APC gene in familial adenomatous polyposis patients. Feyz Med Sci J 2019; 23 (6) :672-678
URL: http://feyz.kaums.ac.ir/article-1-3778-en.html


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Volume 23, Issue 6 (Bimonthly 2019) Back to browse issues page
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