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Tran NT, Vo ST, Nguyen DA, Nguyen CC, Dinh LT, Tran MTT, Tran DC, Luong LAT, Doan KP, Huy Nguyen VQ, Thi Ha TM, Truong LGT, Cao PTM, Tran VTN, Nhut Trinh TH, Le QT, Nguyen VT, Hoang DTT, Nguyen MNB, Bui CT, Tran STT, Lam DT, Le HT, Nguyen MNB, Ho VT, Nguyen MT, Dao TT, Nguyen PM, Nguyen THL, Ha NP, Lu YT, Do TTT, Truong DK, Phan MD, Nguyen HN, Giang H, Tang HS. De novo variants of dominant monogenic disorders in Vietnam detected by a noninvasive prenatal test: a case series. Per Med 2023; 20:467-475. [PMID: 37937420 DOI: 10.2217/pme-2023-0105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Background: Noninvasive prenatal tests for monogenic diseases (NIPT-SGG) have recently been reported as helpful in early-stage antenatal screening. Our study describes the clinical and genetic features of cases identified by NIPT-SGG. Materials & methods: In a cohort pregnancy with abnormal sonograms, affected cases were confirmed by invasive diagnostic tests concurrently, with NIPT-SGG targeting 25 common dominant single-gene diseases. Results: A total of 13 single-gene fetuses were confirmed, including Noonan and Costello syndromes, thanatophoric dysplasia, achondroplasia, osteogenesis imperfecta and Apert syndrome. Two novel variants seen were tuberous sclerosis complex (TSC2 c.4154G>A) and Alagille syndrome (JAG1 c.3452del). Conclusion: NIPT-SGG and standard tests agree on the results for 13 fetuses with monogenic disorders. This panel method of screening can benefit high-risk Vietnamese pregnancies, but further research is encouraged to expand on the causative gene panel.
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Affiliation(s)
- Nhat-Thang Tran
- University of Medicine & Pharmacy at Ho Chi Minh City, Ho Chi Minh City, 70000, Vietnam
- University Medical Center, Ho Chi Minh City, 70000, Vietnam
| | - Son Ta Vo
- Vinmec Health Care System, Hanoi City, 10000, Vietnam
| | - Duy-Anh Nguyen
- Hanoi Obstetrics & Gynecology Hospital, Hanoi City, 10000, Vietnam
- Hanoi Medical University, Hanoi City, 10000, Vietnam
| | - Canh-Chuong Nguyen
- Hanoi Obstetrics & Gynecology Hospital, Hanoi City, 10000, Vietnam
- Hanoi Medical University, Hanoi City, 10000, Vietnam
| | - Linh Thuy Dinh
- Hanoi Obstetrics & Gynecology Hospital, Hanoi City, 10000, Vietnam
| | | | - Danh-Cuong Tran
- National Hospital of Obstetrics & Gynecology, Hanoi City, 10000, Vietnam
| | | | - Kim-Phuong Doan
- Hanoi Medical University Hospital, Hanoi City, 10000, Vietnam
| | | | - Thi Minh Thi Ha
- University of Medicine & Pharmacy, Hue University, 49100, Vietnam
| | | | - Phuong Thi-Mai Cao
- University of Medicine & Pharmacy at Ho Chi Minh City, Ho Chi Minh City, 70000, Vietnam
- University Medical Center, Ho Chi Minh City, 70000, Vietnam
| | | | | | | | | | | | | | - Chi-Thuong Bui
- Gia Dinh People's Hospital, Ho Chi Minh City, 70000, Vietnam
| | - Son-Tra Thi Tran
- Vietnam-Cuba Friendship Dong Hoi Hospital, Dong Hoi City, 47100, Vietnam
| | - Duc-Tam Lam
- Can Tho University of Medicine & Pharmacy, Can Tho, 94000, Vietnam
| | - Hong-Thinh Le
- Can Tho Obstetrics & Gynecology Hospital, Can Tho, 94000, Vietnam
| | | | - Viet-Thang Ho
- University of Medicine & Pharmacy at Ho Chi Minh City, Ho Chi Minh City, 70000, Vietnam
| | | | - Trang Thi Dao
- Hanoi Medical University, Hanoi City, 10000, Vietnam
| | - Phuong Minh Nguyen
- Medical Genetics Institute, Ho Chi Minh City, 70000, Vietnam
- Gene Solutions, Ho Chi Minh City, 70000, Vietnam
| | - Thu-Hang Le Nguyen
- Medical Genetics Institute, Ho Chi Minh City, 70000, Vietnam
- Gene Solutions, Ho Chi Minh City, 70000, Vietnam
| | - Nhung Phuong Ha
- Medical Genetics Institute, Ho Chi Minh City, 70000, Vietnam
- Gene Solutions, Ho Chi Minh City, 70000, Vietnam
| | - Y-Thanh Lu
- Medical Genetics Institute, Ho Chi Minh City, 70000, Vietnam
- Gene Solutions, Ho Chi Minh City, 70000, Vietnam
| | | | | | - Minh-Duy Phan
- Medical Genetics Institute, Ho Chi Minh City, 70000, Vietnam
- Gene Solutions, Ho Chi Minh City, 70000, Vietnam
| | - Hoai-Nghia Nguyen
- Medical Genetics Institute, Ho Chi Minh City, 70000, Vietnam
- Gene Solutions, Ho Chi Minh City, 70000, Vietnam
| | - Hoa Giang
- Medical Genetics Institute, Ho Chi Minh City, 70000, Vietnam
- Gene Solutions, Ho Chi Minh City, 70000, Vietnam
| | - Hung-Sang Tang
- Medical Genetics Institute, Ho Chi Minh City, 70000, Vietnam
- Gene Solutions, Ho Chi Minh City, 70000, Vietnam
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Brouillet S, Mereuze S, Ranisavljevic N, Chauveau C, Hamamah S, Cattin J, Verebi C, Cabrol C, Ishmukhametova A, Girardet A, Anahory T, Willems M. Molecular Characterization of a Rare Case of Monozygotic Dichorionic Diamniotic Twin Pregnancy after Single Blastocyst Transfer in Preimplantation Genetic Testing (PGT). Int J Mol Sci 2022; 23:10835. [PMID: 36142745 PMCID: PMC9504855 DOI: 10.3390/ijms231810835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/31/2022] [Accepted: 09/08/2022] [Indexed: 11/26/2022] Open
Abstract
Preimplantation genetic testing (PGT) is widely used to select unaffected embryos, increasing the odds of having a healthy baby. During the last few decades, it was accepted that monozygotic dichorionic diamniotic twin pregnancies occurred from the embryo splitting before Day 3 postfertilization according to Corner's dogma. Hence, the occurrence of a dichorionic diamniotic twin pregnancy after a single blastocyst transfer was considered a dizygotic pregnancy resulting from blastocyst transfer and concurrent natural fertilization. In our study, we have provided for the first time molecular proof that a single blastocyst transfer can result in a monozygotic dichorionic diamniotic twin pregnancy, invalidating Corner's dogma. In this case, we recommend systematically assessing the genetic status of dichorionic twins after single blastocyst transfer using prenatal diagnosis to exclude the risk from a potential concurrent spontaneous pregnancy and to ensure that both fetuses are unaffected. To achieve this goal, we have developed here an innovative noninvasive prenatal diagnosis by exclusion of paternal variants with droplet digital PCR, maximizing the reliability of genetic diagnosis. Further multicentric prospective studies using genetic testing are now required to establish the rate of blastocyst splitting leading to dichorionic pregnancy in PGT and to identify the risk factors.
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Affiliation(s)
- Sophie Brouillet
- DEFE, University of Montpellier, INSERM, Montpellier, France
- Biologie de la Reproduction/DPI et CECOS, Département de Biologie de la Reproduction, CHU of Montpellier, Montpellier, France
| | - Sandie Mereuze
- Laboratory of Molecular Genetics, CHU of Montpellier, Montpellier, France
| | | | - Claire Chauveau
- Department of Medical Genetics, CHU of Montpellier, Montpellier, France
| | - Samir Hamamah
- DEFE, University of Montpellier, INSERM, Montpellier, France
- Biologie de la Reproduction/DPI et CECOS, Département de Biologie de la Reproduction, CHU of Montpellier, Montpellier, France
| | - Julie Cattin
- Service de Gynécologie-Obstétrique, CHU Jean Minjoz, Besançon, France
| | - Camille Verebi
- Service de Médecine Génomique, Maladies de Système et d’Organe, Fédération de Génétique et de Médecine Génomique, DMU BioPhyGen, APHP Centre—Université Paris Cité, Hôpital Cochin, Paris, France
| | | | | | - Anne Girardet
- Laboratory of Molecular Genetics, CHU of Montpellier, Montpellier, France
- PhyMedExp, CHU of Montpellier, University of Montpellier, INSERM, CNRS, Montpellier, France
| | - Tal Anahory
- Department of Reproductive Medicine, CHU of Montpellier, Montpellier, France
| | - Marjolaine Willems
- Reference Centre AD SOOR, AnDDI-RARE, INSERM U1298, INM, Department of Medical Genetics, Arnaud de Villeneuve Hospital and University of Montpellier, Montpellier, France
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Yuan H, Chen J, Li N, Miao H, Chen Y, Lyu S, Qiao Y, Yang G, Luo H, Chen L, Mao F, Huang L, He Y, Hu S, Miao C, Qian Y, Feng R. Target-Sequencing of Female Infertility Pathogenic Gene Panel and a Novel TUBB8 Loss-of-Function Mutation. Front Genet 2022; 13:865103. [PMID: 35620457 PMCID: PMC9127544 DOI: 10.3389/fgene.2022.865103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Genetic screening is an important approach for etiology determination and helps to optimize administration protocols in reproductive centers. After the first pathogenic gene of female infertility was reported in 2016, more and more new pathogenic genes were discovered, and we sought to develop an efficient and cost-effective method for genetic screening in patients. In this study, we designed a target-sequencing panel with 22 female infertility-related genes, namely, TUBB8, PATL2, WEE2, and PANX1 and sequenced 68 primary infertility (PI) and recurrent pregnancy loss (RPL) patients. We sequenced 68 samples reaching an average depth of 1559× and detected 3,134 variants. Among them, 62.2% were synonymous single-nucleotide variants (SNVs) and 36.3% were non-synonymous SNVs. The remaining 1.5% are indels (insertions and deletions) and stop-gains. DNAH11 and TUBB8 are the two genes that mutated most frequently. We also found a novel TUBB8 variant (c.898_900del; p.300_300del), proved its loss-of-function mechanism, and profiled the interactome of the wild-type (WT) and mutant TUBB8 proteins. Overall, this target-sequencing method provides an efficient and cost-effective approach for screening in IVF clinics and will support researchers for the discovery of new pathogenic variants.
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Affiliation(s)
- Hongxia Yuan
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Jianhua Chen
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Na Li
- The Reproduction Engineer Key Laboratory of Shanxi Health Committee, Department of Reproductive Genetics, Institute of Reproduction and Genetics of Changzhi Medical College, Heping Hospital of Changzhi Medical College, Changzhi, China
| | - Hui Miao
- The Reproduction Engineer Key Laboratory of Shanxi Health Committee, Department of Reproductive Genetics, Institute of Reproduction and Genetics of Changzhi Medical College, Heping Hospital of Changzhi Medical College, Changzhi, China
| | - Yao Chen
- Reproductive Medical Center of the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Shuyan Lyu
- The Affiliated Huaian No. 1 People’s Hospital of Nanjing Medical University, Huaian, China
| | - Yu Qiao
- The Affiliated Huaian No. 1 People’s Hospital of Nanjing Medical University, Huaian, China
| | - Guangping Yang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Hui Luo
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Liangliang Chen
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Fei Mao
- Reproductive Medical Center of the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lingli Huang
- Reproductive Medical Center of the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yanni He
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Saifei Hu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Congxiu Miao
- The Reproduction Engineer Key Laboratory of Shanxi Health Committee, Department of Reproductive Genetics, Institute of Reproduction and Genetics of Changzhi Medical College, Heping Hospital of Changzhi Medical College, Changzhi, China
| | - Yun Qian
- Reproductive Medical Center of the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ruizhi Feng
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
- Reproductive Medical Center of the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
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