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Yang L, Ijaz I, Cheng J, Wei C, Tan X, Khan MA, Fu X, Fu J. Evaluation of amplification refractory mutation system (ARMS) technique for quick and accurate prenatal gene diagnosis of CHM variant in choroideremia. Appl Clin Genet 2017; 11:1-8. [PMID: 29296092 PMCID: PMC5741072 DOI: 10.2147/tacg.s144383] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Choroideremia is a rare X-linked recessive inherited disorder that causes chorioretinal dystrophy leading to visual impairment in its early stages which finally causes total blindness in the affected person. It is caused due to mutations in the CHM gene. In this study, we have recruited a pedigree with choroideremia and detected a nonsense variant (c.C799T:p.R267X) in CHM of the proband (I:1). Different primer sets for amplification refractory mutation system (ARMS) were designed and PCR conditions were optimized. Then, we evaluated the sequence variant in the patient, carrier, and a fetus by using ARMS technique to identify if they inherited the pathogenic gene from parental generation; we used amniotic fluid DNA for the diagnosis of the gene in the fetus. The primer pairs, WT2+C and MT+C, amplified high specific products in different DNAs which were verified by Sanger sequencing. Based on our results, ARMS technique is fast, accurate, and reliable prenatal gene diagnostic tool to assess CHM variants. Taken together, our study indicates that ARMS technique can be used as a potential molecular tool in the diagnosis of prenatal mutation for choroideremia as well as other genetic diseases in undeveloped and developing countries, where there might be shortage of medical resources and supplies.
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Affiliation(s)
- Lisha Yang
- Key Laboratory of Epigenetics and Oncology, the Research Center for Precision Medicine, Southwest Medical University, Luzhou
| | - Iqra Ijaz
- Key Laboratory of Epigenetics and Oncology, the Research Center for Precision Medicine, Southwest Medical University, Luzhou
| | - Jingliang Cheng
- Key Laboratory of Epigenetics and Oncology, the Research Center for Precision Medicine, Southwest Medical University, Luzhou.,Department of Pathology, Hunan Normal University College of Medicine, Changsha
| | - Chunli Wei
- Key Laboratory of Epigenetics and Oncology, the Research Center for Precision Medicine, Southwest Medical University, Luzhou.,State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR)
| | - Xiaojun Tan
- Reproductive and Genetic Center, the Central Hospital of Xiangtan City, Xiangtan
| | - Md Asaduzzaman Khan
- Key Laboratory of Epigenetics and Oncology, the Research Center for Precision Medicine, Southwest Medical University, Luzhou
| | - Xiaodong Fu
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Junjiang Fu
- Key Laboratory of Epigenetics and Oncology, the Research Center for Precision Medicine, Southwest Medical University, Luzhou.,Department of Pathology, Hunan Normal University College of Medicine, Changsha.,State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR)
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