|
1
|
Yogi A, Iemura R, Nakatani H, Takasawa K, Gau M, Yamauchi T, Yoshida M, Moriyama K, Ishii T, Hosokawa S, Yamada M, Suzuki H, Kosaki K, Kashimada K, Morio T. BMP2 is a potential causative gene for isolated dextrocardia situs solitus. Eur J Med Genet 2023; 66:104820. [PMID: 37572998 DOI: 10.1016/j.ejmg.2023.104820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 07/27/2023] [Accepted: 08/10/2023] [Indexed: 08/14/2023]
Abstract
BMP2 (bone morphogenic protein-2) is a member of the TGF-β superfamily and has essential roles in the development of multiple organs, including osteogenesis. Because of its crucial role in organ and skeletal development, Bmp2 null mice is fetal lethal. The recent report has characterized multiple patients with BMP2 haploinsufficiency, describing individuals with BMP2 sequence variants and deletions associated with short stature without endocrinological abnormalities, a recognizable craniofacial gestalt, skeletal anomalies, and congenital heart disease. However, due to a small number of reported patients with BMP2 haploinsufficiency, the genotype and phenotype correlations are not fully understood. We experienced a family of BMP2 haploinsufficiency with a novel frameshift variant NM_001200.4: c.231dup (p.Tyr78Leufs*38) which was predicted to be "pathogenic" by the American College of Genetics and Genomics (ACGM) criteria. In addition to short stature, impaired hearing ability and minor skeletal deformities, the proband exhibited isolated dextrocardia situs solitus without cardiac anomalies and abnormal locations of other visceral organs. Our study would shed light on the crucial role of BMP2 in determining the cardiac axis, and further studies are needed to assemble more cases to elucidate BMP2 role in human heart development.
Collapse
Affiliation(s)
- Analia Yogi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Ryosei Iemura
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Hisae Nakatani
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Kei Takasawa
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Maki Gau
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Takeru Yamauchi
- Neonatal Intensive Care Unit, Tsuchiura General Hospital, Ibaraki, Japan
| | - Masayuki Yoshida
- Department of Medical Genetics, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Keiji Moriyama
- Department of Maxillofacial Orthognathics, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Taku Ishii
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Susumu Hosokawa
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Mamiko Yamada
- Center for Medical Genetics, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Hisato Suzuki
- Center for Medical Genetics, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kenjiro Kosaki
- Center for Medical Genetics, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kenichi Kashimada
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| |
Collapse
|