A case report and literature review of Fanconi Anemia (FA) diagnosed by genetic testing
| Autor: | Revathy Ramalingam, Seung Jun Lee, Sung Sup Park, Moon Woo Seong, Dodam Seol, Priya Margaret, Soo Hyun Seo, Ponnumony John Solomon, Alph S Shirley, Godfred A. Menezes, Ramya Rajendran |
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| Jazyk: | angličtina |
| Předmět: |
Proband
Male Pediatrics medicine.medical_specialty Genetic counseling DNA Mutational Analysis Case Report Polymorphism Single Nucleotide symbols.namesake Consanguinity Fanconi anemia FANC genes medicine Humans Genetic Testing Child Genetic testing Sanger sequencing Genetics FANCA gene Splice site mutation medicine.diagnostic_test Fanconi Anemia Complementation Group A Protein business.industry Anemia medicine.disease FANCA Fanconi Anemia symbols business Mutations Aunt |
| Zdroj: | Italian Journal of Pediatrics |
| ISSN: | 1824-7288 |
| DOI: | 10.1186/s13052-015-0142-6 |
| Popis: | Fanconi anemia (FA) is a genetically heterogeneous rare autosomal recessive disorder characterized by congenital malformations, hematological problems and predisposition to malignancies. The genes that have been found to be mutated in FA patients are called FANC. To date 16 distinct FANC genes have been reported. Among these, mutations in FANCA are the most frequent among FA patients worldwide which account for 60- 65%. In this study, a nine years old male child was brought to our hospital one year ago for opinion and advice. He was the third child born to consanguineous parents. The mutation analyses were performed for proband, parents, elder sibling and the relatives [maternal aunt and maternal aunt’s son (cousin)]. Molecular genetic testing [targeted next-generation sequencing (MiSeq, Illumina method)] was performed by mutation analysis in 15 genes involved. Entire coding exons and their flanking regions of the genes were analysed. Sanger sequencing [(ABI 3730 analyzer by Applied Biosystems)] was performed using primers specific for 43 coding exons of the FANCA gene. A novel splice site mutation, c.3066 + 1G > T, (IVS31 + 1G > T), homozygote was detected by sequencing in the patient. The above sequence variant was identified in heterozygous state in his parents. Further, the above sequence variant was not identified in other family members (elder sibling, maternal aunt and cousin). It is concluded that genetic study should be done if possible in all the cases of suspected FA, including siblings, parents and close blood relatives. It will help us to plan appropriate treatment and also to select suitable donor for hematopoietic stem cell transplantation and to plan for genetic counseling. In addition to the case report, the main focus of this manuscript was to review literature on role of FANCA gene in FA since large number of FANCA mutations and polymorphisms have been identified. |
| Databáze: | OpenAIRE |
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