Volume 17, Issue 3 (2014)
mjms 2014, 17(3): 81-91 |
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Ataei-Kachouei M, Nadaf J, Akbari M T, Atri M, Majewski J, Riazalhosseini Y et al . Identification of Nucleotide Changes of Two Known Causative Genes (BRCA2 and STK11) of Hereditary Breast Cancer in an Iranian Family using Exome Sequencing. mjms 2014; 17 (3) :81-91
URL: http://mjms.modares.ac.ir/article-30-7713-en.html
URL: http://mjms.modares.ac.ir/article-30-7713-en.html
Mojgan Ataei-Kachouei1 
, Javad Nadaf2 , Mohammad taghi Akbari 1, Morteza Atri3 , Jacek Majewski4 , Yasser Riazalhosseini4 , Masoud Garshasbi1
, Javad Nadaf2 , Mohammad taghi Akbari 1, Morteza Atri3 , Jacek Majewski4 , Yasser Riazalhosseini4 , Masoud Garshasbi1
1- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
2- Department of Human Genetics, McGill University, Montreal, Canada
3- Cancer Research Institute, Tehran University of Medical Sciences, Tehran, Iran
4- McGill University and Genome Quebec Innovation Center, Montreal, Canada
2- Department of Human Genetics, McGill University, Montreal, Canada
3- Cancer Research Institute, Tehran University of Medical Sciences, Tehran, Iran
4- McGill University and Genome Quebec Innovation Center, Montreal, Canada
Abstract: (9611 Views)
Objective: Since the identification of the two highly penetrant dominantly inherited genes, BRCA1/2, in the 1990s, a number of other genes have been identified which account for approximately 25% of the genetic basis for hereditary breast cancer. At least 75% are unidentified. The goal of this study is to investigate the presence or absence of a recessive pattern of inheritance in this heterogeneous disease whose possibility has been previously discussed by researchers. Methods: In this study we used exome sequencing as the most recent approach for identification of the genetic basis of any disease. The results of exome sequencing were confirmed by Sanger sequencing. Results: Although we did not find any homozygous mutation in this family, however a heterozygous 4bp deletion that led to a frame shift mutation was identified in exon 11 of the BRCA2 gene. Also identified was a heterozygous single nucleotide polymorphism in exon 9 of the STK11 gene. Conclusion: The rs80359352 variation identified in this family is one of the frequent pathogenic mutations in the BRCA2 gene that has been reported in the BIC database. This variation has been previously observed in other ethnic populations such as Caucasians, Hispanics and the Chinese. In this study, for the first time, we report this mutation in Iranian population and its segregation in hereditary breast cancer.
Keywords: BRCA2, rs80359352, STK11, Hereditary breast cancer, Exome sequencing, BRCA2, rs80359352, STK11
Article Type: Original Manuscipt |
Subject:
Medical Genetics|Cancer
Received: 2014/05/4 | Accepted: 2014/07/14
Received: 2014/05/4 | Accepted: 2014/07/14
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