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Lin PC, Cheng CN, Huang HY, Tseng YH, Chang YS, Lin CY, Chang JG. Congenital dyserythropoiesis anemia type Ia with a novel CDAN1 mutation diagnosed by whole exome sequencing. Mol Genet Genomic Med 2020; 8:e1220. [PMID: 32160409 PMCID: PMC7216794 DOI: 10.1002/mgg3.1220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 02/15/2020] [Accepted: 02/24/2020] [Indexed: 11/17/2022] Open
Abstract
Background Congenital dyserythropoiesis anemia type Ia (OMIM:224120), is a rare hereditary anemia. The diagnosis is difficult to make and usually delayed in part due to its rarity and nonspecific clinical manifestations. Methods Whole exome sequencing was applied for the genetic diagnosis of a 12‐year‐old boy who has suffered from hemolytic anemia since birth and who requires regular transfusions. Sanger sequencing of the variants detected in whole exome sequencing was performed in the patient and his parents. Results Compound heterozygous mutations of CDAN1 gene, including one previously reported and one novel mutation, which is a splicing change, were detected in the whole exome sequencing and confirmed by Sanger sequencing. The autosomal recessive inheritance was confirmed by pedigree analysis. Conclusion To our knowledge, this is the first case report of congenital dyserythropoiesis anemia type Ia with genetic diagnosis to be located in Taiwan. Because of the rarity of CDA Ia and the overlapping of the clinical manifestations with other hereditary anemias, the next‐generation sequencing approach is effective for conclusive diagnosis of CDA Ia.
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Affiliation(s)
- Pei-Chin Lin
- Division of Hematology and Oncology, Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Pediatrics, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chao-Neng Cheng
- Division of Hematology and Oncology, Department of Pediatrics, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Hsi-Yuan Huang
- Center for Precision Medicine, China Medical University Hospital, Taichung, Taiwan.,Department of Laboratory Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Yu-Hsin Tseng
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ya-Sian Chang
- Center for Precision Medicine, China Medical University Hospital, Taichung, Taiwan.,Department of Laboratory Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Epigenome Research Center, China Medical University Hospital, Taichung, Taiwan.,School of Medicine, China Medical University, Taichung, Taiwan
| | - Chien-Yu Lin
- Graduate Institute of Clinical Medical Science, School of Medicine, China Medical University, Taichung, Taiwan
| | - Jan-Gowth Chang
- Center for Precision Medicine, China Medical University Hospital, Taichung, Taiwan.,Department of Laboratory Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Epigenome Research Center, China Medical University Hospital, Taichung, Taiwan.,School of Medicine, China Medical University, Taichung, Taiwan.,Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
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