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Somboonchai P, Charoenkwan P, Piyamongkol S, Lattiwongsakorn W, Pantasri T, Piyamongkol W. Development of pre-implantation genetic testing protocol for monogenic disorders (PGT-M) of Hb H disease. BMC Genomics 2024; 25:668. [PMID: 38961367 PMCID: PMC11223301 DOI: 10.1186/s12864-024-10578-7] [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] [Received: 04/18/2024] [Accepted: 06/28/2024] [Indexed: 07/05/2024] Open
Abstract
Hb H disease is the most severe form of α-thalassemia compatible with post-natal life. Compound heterozygous α0-thalassemia- SEA deletion/α+-thalassemia- 3.7kb deletion is the commonest cause of Hb H disease in Thailand. Preimplantation genetics testing for monogenic disorders (PGT-M) is an alternative for couples at risk of the disorder to begin a pregnancy with a healthy baby. This study aims to develop a novel PCR protocol for PGT-M of Hb H disease- SEA/-3.7kb using multiplex fluorescent PCR. A novel set of primers for α+-thalassemia- 3.7kb deletion was developed and tested. The PCR protocol for α0-thalassemia- SEA deletion was combined for Hb H disease- SEA/-3.7kb genotyping. The PCR protocols were applied to genomic DNA extracted from subjects with different thalassemia genotypes and on whole genome amplification (WGA) products from clinical PGT-M cycles of the families at risk of Hb Bart's. The results were compared and discussed. The results showed three PCR products from α+-thalassemia- 3.7kb primer set, and three from α0thalassemiaSEA primer set. The results were consistent with the known thalassemia genotypes. The novel -α3.7 primers protocol was also tested on 37 WGA products from clinical PGT-M cycles giving accurate genotyping results and a satisfying amplification efficiency with the ADO rates of 2.7%, 0%, and 0% for HBA2, HBA1, and internal control fragments, respectively. This novel PCR protocol can precisely distinguish Hb H disease- SEA/-3.7kb from other genotypes. Additionally, this is the first PCR protocol for Hb H disease- SEA/-3.7kb which is optimal for PGT-M.
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Affiliation(s)
- Pannarai Somboonchai
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Chiang Mai University, 110 Intawaroros Road, Sripoom, Mueang, Chiang Mai, 50200, Thailand
| | - Pimlak Charoenkwan
- Department of Pediatrics, Faculty of Medicine, Chiang Mai University, 110 Intawaroros Road, Sripoom, Mueang, Chiang Mai, 50200, Thailand
| | - Sirivipa Piyamongkol
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, 239 Suthep Road, Suthep, Mueang, Chiang Mai, 50200, Thailand
| | - Worashorn Lattiwongsakorn
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Chiang Mai University, 110 Intawaroros Road, Sripoom, Mueang, Chiang Mai, 50200, Thailand
| | - Tawiwan Pantasri
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Chiang Mai University, 110 Intawaroros Road, Sripoom, Mueang, Chiang Mai, 50200, Thailand.
| | - Wirawit Piyamongkol
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Chiang Mai University, 110 Intawaroros Road, Sripoom, Mueang, Chiang Mai, 50200, Thailand.
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Ha Vuong VV, Nguyen PD, Thi NN, Le Thi P, Minh Nguyet DT, Nguyen MH, Tran HA, Dang-Tran NM, Bui TH, Tran TH, Van Ta T, Tran VK. Application of short tandem repeats (STRs) in the preimplantation genetic diagnosis (PGD) of α-thalassemia. Taiwan J Obstet Gynecol 2024; 63:375-380. [PMID: 38802201 DOI: 10.1016/j.tjog.2023.09.024] [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] [Accepted: 09/07/2023] [Indexed: 05/29/2024] Open
Abstract
OBJECTIVES α-thalassemia is an autosomal recessive monogenic blood disorder, affecting up to 5% of the world's population. The occurrence rate of the disease in Vietnam varies up to up to 51.5%, with high rate of mutation carriers, of couples consisting of two carriers at risk of bearing a child with fetal Hb Bart, which can develop into hydrops fetalis syndrome, threatening the well-being of the mother and the child. Our study aims to facilitate birth of healthy/asymptomatic children of α-thalassemia carrier couples who received reproductive service at our centre during the period of 2019-2022. MATERIALS AND METHODS 89 couples at risks of having α-thalassemia offsprings requested IVF procedures and PGD at Post Hospital during 2019-2022 were recruited for investigation. Couple and additional family members' peripheral blood samples of couples and additional family members were subjected to haemoglobin electrophoresis, DNA extraction for α-thalassemia gene mutation detection and STRs linkage analysis. Data were observed and analysed on GeneMarker software. RESULTS 91 cycles of PGD for α-thalassemia were carried out for 89 couples. α-thalassemia large deletion (--SEA/αα) was the most common mutation identified in 88 couples, in which 4 cases also carried β-thalassemia point mutations. Combining results of PGS and PGD, 278/424 amplified embryos were transferable (HBA-mutation free or carriers of single heterozygous HBA mutation, without chromosomal abnormality). 64/89 couples have been transferred with the embryos (prioritizing mutation free ones over carriers), resulting in the birth of 36 α-thalassemia disease-free children, 17 ongoing pregnancies, and 11 with miscarriages. CONCLUSION Successful application of microsatellite-based method in PGD facilitated the birth of 36 healthy children and 17 ongoing pregnancies for 53/64 couples with embryo-transferred. All resulted clinical births displayed confirmation results in line with the PGD results, thus demonstrating the feasibility and credibility of the use of STR markers in PGD.
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Affiliation(s)
- Vu Viet Ha Vuong
- Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Viet Nam; Hospital of Post and Telecommunications, Hanoi, Viet Nam
| | - Phuoc-Dung Nguyen
- Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Viet Nam
| | - Nha Nguyen Thi
- Hospital of Post and Telecommunications, Hanoi, Viet Nam
| | - Phuong Le Thi
- Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Viet Nam
| | | | | | | | - Nhat-Minh Dang-Tran
- High School for Gifted Students, Hanoi University of Science, Vietnam National University, Viet Nam
| | - The-Hung Bui
- Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Viet Nam; Center for Molecular Medicine, Clinical Genetics Unit, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Thinh Huy Tran
- Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Viet Nam; Hanoi Medical University, Hanoi, Viet Nam
| | - Thanh Van Ta
- Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Viet Nam; Hanoi Medical University, Hanoi, Viet Nam
| | - Van-Khanh Tran
- Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Viet Nam.
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Zhao W, Song Y, Huang C, Xu S, Luo Q, Yao R, Sun N, Liang B, Fei J, Gao F, Huang J, Qu S. Development of preimplantation genetic testing for monogenic reference materials using next-generation sequencing. BMC Med Genomics 2024; 17:33. [PMID: 38262988 PMCID: PMC10807056 DOI: 10.1186/s12920-024-01803-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 01/09/2024] [Indexed: 01/25/2024] Open
Abstract
OBJECTIVE Preimplantation genetic testing for monogenic disorders (PGT-M) has been used for over 20 years to detect many serious genetic conditions. However, there is still a lack of reference materials (RMs) to validate the test performance during the development and quality control of PGT-M. METHOD Sixteen thalassemia cell lines from four thalassemia families were selected to establish the RMs. Each family consisted of parents with heterozygous mutations for α- and/or β-thalassemia and two children, at least one of whom carried a homozygous thalassemia mutation (proband). The RM panel consisted of 12 DNA samples (parents and probands in 4 families) and 4 simulated embryos (cell lines constructed from blood samples from the four nonproband children). Four accredited genetics laboratories that offer verification of thalassemia samples were invited to evaluate the performance of the RM panel. Furthermore, the stability of the RMs was determined by testing after freeze‒thaw cycles and long-term storage. RESULTS PGT-M reference materials containing 12 genome DNA (gDNA) reference materials and 4 simulated embryo reference materials for thalassemia testing were successfully established. Next-generation sequencing was performed on the samples. The genotypes and haplotypes of all 16 PGT-M reference materials were concordant across the four labs, which used various testing workflows. These well-characterized PGT-M reference materials retained their stability even after 3 years of storage. CONCLUSION The establishment of PGT-M reference materials for thalassemia will help with the standardization and accuracy of PGT-M in clinical use.
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Affiliation(s)
- Weihua Zhao
- Department of Obstetrics, Shenzhen Second People's Hospital/the First Affiliated Hospital of Shenzhen University Health, Shenzhen, Guangdong, China
| | | | - Chuanfeng Huang
- Division of Physical and Chemical Testing, Division of in Vitro Diagnostic Reagents, National Institutes for food and drug Control (NIFDC), Beijing, China
| | - Shan Xu
- BGI-Shenzhen, Guangdong, Shenzhen, China
| | - Qi Luo
- Department of Obstetrics, Shenzhen Second People's Hospital/the First Affiliated Hospital of Shenzhen University Health, Shenzhen, Guangdong, China
| | - Runsi Yao
- Department of Obstetrics, Shenzhen Second People's Hospital/the First Affiliated Hospital of Shenzhen University Health, Shenzhen, Guangdong, China
| | - Nan Sun
- Division of Physical and Chemical Testing, Division of in Vitro Diagnostic Reagents, National Institutes for food and drug Control (NIFDC), Beijing, China
| | - Bo Liang
- Laboratory of Metabolic and Developmental Sciences, State Key Laboratory of Microbial Metabolism, Shanghai, China
- Basecare Medical Device Co., Ltd, Jiangsu, China
| | - Jia Fei
- Peking Jabrehoo Med Tech Co., Ltd, Beijing, China
| | | | - Jie Huang
- Division of Physical and Chemical Testing, Division of in Vitro Diagnostic Reagents, National Institutes for food and drug Control (NIFDC), Beijing, China.
| | - Shoufang Qu
- Division of Physical and Chemical Testing, Division of in Vitro Diagnostic Reagents, National Institutes for food and drug Control (NIFDC), Beijing, China.
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Piyamongkol S, Makonkawkeyoon K, Shotelersuk V, Sreshthaputra O, Pantasri T, Sittiwangkul R, Tongsong T, Piyamongkol W. Pre-implantation genetic testing for Marfan syndrome using mini-sequencing. J OBSTET GYNAECOL 2022; 42:2846-2852. [PMID: 35972748 DOI: 10.1080/01443615.2022.2109957] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Marfan syndrome (MFS1) is an autosomal dominant condition causing aortopathy including fatal aortic dissection. This study aimed to perform clinical PGT-M in a family with a history of MFS1 for two generations. A family with two members affected by MFS1 approached the hospital for PGT-M. The couple decided to join the project following extensive counselling and informed consent was obtained. The mutation contributory to MFS1 was identified using whole-exome sequencing (WES). A novel PGT-M protocol using multiplex fluorescent PCR and mini-sequencing was developed and tested. Ten blastocysts were subjected to PGT-M in two clinical PGT cycles. Mini-sequencing revealed four normal and six affected embryos. Microsatellite-based linkage analysis confirmed mutation analysis results in all samples. The embryos diagnosed as normal (non-MFS1) were chosen for transfer. A pregnancy was obtained in the third embryo transfer. Invasive prenatal diagnosis confirmed the normal genotype of the baby. This study demonstrated comprehensive management using the application of clinical-based diagnosis, WES for mutation identification within the MFS1 gene, mini-sequencing for embryo selection and microsatellite-based linkage analysis for backup of PGT-M results and contamination detection to assist couples in having a healthy child when there was a family history of Marfan syndrome.Impact StatementWhat is already known on this subject? Marfan syndrome (MFS1, OMIM#154700) is an autosomal dominant condition causing aortopathy including fatal aortic dissection. Pre-implantation genetic testing (PGT) is an alternative to traditional invasive prenatal diagnosis (PND) giving the couples the chance of starting pregnancy with the confidence that the baby will be unaffected. Most of the previous PGT reports employed microsatellite-based linkage analysis. A few PGT studies used sequencing, mini-sequencing and mutation analysis; however, the details of the techniques were not described.What do the results of this study add? Single-cell PCR protocol using multiplex fluorescent PCR and mini-sequencing was developed and validated. Two clinical PGTs cycles for Marfan syndrome were performed. A healthy baby was resulted. The details of multiplex fluorescent PCR and mini-sequencing protocols are described in this study so that the procedures can be reproduced.What are the implications of these findings for clinical practice and/or further research? Embryo selection can help the family suffering from Marfan syndrome for two generations to start a pregnancy with confidence that their child will be unaffected. This study also shows the use of a mini-sequencing protocol for PGT, which can be a universal protocol for other mutations by changing the PCR primers and mini-sequencing primers.
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Affiliation(s)
- Sirivipa Piyamongkol
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Krit Makonkawkeyoon
- Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Vorasuk Shotelersuk
- Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Opas Sreshthaputra
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Tawiwan Pantasri
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Rekwan Sittiwangkul
- Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Theera Tongsong
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Wirawit Piyamongkol
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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Suhaimi SA, Zulkipli IN, Ghani H, Abdul-Hamid MRW. Applications of next generation sequencing in the screening and diagnosis of thalassemia: A mini-review. Front Pediatr 2022; 10:1015769. [PMID: 36245713 PMCID: PMC9557073 DOI: 10.3389/fped.2022.1015769] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 09/07/2022] [Indexed: 11/13/2022] Open
Abstract
Thalassemias are a group of inherited blood disorders that affects 5-7% of the world population. Comprehensive screening strategies are essential for the management and prevention of this disorder. Today, many clinical and research laboratories have widely utilized next-generation sequencing (NGS) technologies to identify diseases, from germline and somatic disorders to infectious diseases. Yet, NGS application in thalassemia is limited and has just recently surfaced due to current demands in seeking alternative DNA screening tools that are more efficient, versatile, and cost-effective. This review aims to understand the several aspects of NGS technology, including its most current and expanding uses, advantages, and limitations, along with the issues and solutions related to its integration into routine screening and diagnosis of thalassemias. Hitherto, NGS has been a groundbreaking technology that offers tremendous improvements as a diagnostic tool for thalassemia in terms of its higher throughput, accuracy, and adaptability. The superiority of NGS in detecting rare variants, solving complex hematological problems, and providing non-invasive alternatives to neonatal diagnosis cannot be overlooked. However, several pitfalls still preclude its use as a stand-alone technique over conventional methods.
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Affiliation(s)
| | | | - Hazim Ghani
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
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Thammavong K, Luewan S, Wanapirak C, Tongsong T. Ultrasound Features of Fetal Anemia Lessons From Hemoglobin Bart Disease. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2021; 40:659-674. [PMID: 32815580 DOI: 10.1002/jum.15436] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/13/2020] [Accepted: 07/17/2020] [Indexed: 05/14/2023]
Abstract
Insights gained from this review are as follows: (1) Ultrasound is highly effective in early detection of fetal hemoglobin (Hb) Bart disease. (2) The most sensitive parameters in predicting Hb Bart anemia appear to be the cardiac diameter-to-thoracic diameter ratio, middle cerebral artery peak systolic velocity, and placental thickness. (3) Several other ultrasound markers are helpful in increasing specificity, such as hepatosplenomegaly. (4) Hydrops fetalis is not a consequence of heart failure but rather of hypervolemia and high vascular permeability of fetuses, whereas heart failure is a very late consequence of a long-standing overworked heart. (5) Management guidelines for fetuses at risk of Hb Bart disease are proposed.
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Affiliation(s)
- Keooudone Thammavong
- Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai University, Chang Mai, Thailand
| | - Suchaya Luewan
- Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai University, Chang Mai, Thailand
| | - Chanane Wanapirak
- Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai University, Chang Mai, Thailand
| | - Theera Tongsong
- Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai University, Chang Mai, Thailand
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Xu H, Liu Y, Yan P, He Y, Qin J, Lou J, Zhou W. [Rapid preimplantation genetic diagnosis of α-thalassemia SEA deletion with blastocyst cell whole genome amplification and short fragment Gap-PCR method]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2018; 38:1250-1254. [PMID: 30377127 DOI: 10.3969/j.issn.1673-4254.2018.10.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To develop a rapid preimplantation genetic diagnosis method for α-thalassemia SEA deletion based on blastocyst cell whole genome amplification (WGA) combined with short fragment Gap-PCR. METHODS Using multiple displacement amplification (MDA) WGA technique, we established a double-fluorescent PCR system of the housekeeping genes GAPDH and β-actin for WGA quality testing, and a genotyping PCR system of mutant and normal short sequences for α-thalassemia SEA deletion. The sensitivity and accuracy of this method for diagnosis of α-thalassemia SEA deletion were evaluated by detecting lymphocyte samples containing different cell numbers from carriers of SEA deletion. The applicability of this method was evaluated by testing of 12 blastocyst biopsy samples. RESULTS Detection of lymphocyte samples with different cell numbers using the method developed in this study revealed no ADO in 3-cell samples, and the product quantity of WGA became stable for 4-cell samples. Genotyping of the 10 blastocyst biopsy samples with successful WGA showed a genotype of --SEA/αα in 5 samples and αα/αα in the other 5 samples, which were consistent with the verification results. CONCLUSIONS The method developed in this study is a complete testing process for 4-6 blastocyst biopsy cells to allow rapid, accurate, and cost-effective PGD genotyping of α-thalassemia SEA deletion using short fragment gap-PCR.
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Affiliation(s)
- Huiling Xu
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yanhui Liu
- Dongguan Maternal and Children's Healthcare Hospital, Dongguan 523122, China
| | - Ping Yan
- Huiqiao Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yi He
- Dongguan Maternal and Children's Healthcare Hospital, Dongguan 523122, China
| | - Jiachun Qin
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jiwu Lou
- Dongguan Maternal and Children's Healthcare Hospital, Dongguan 523122, China
| | - Wanjun Zhou
- Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
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Lee TH, Hsu YC, Chang CL. Detection of SEA-type α-thalassemia in embryo biopsies by digital PCR. Taiwan J Obstet Gynecol 2017; 56:487-494. [DOI: 10.1016/j.tjog.2017.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2017] [Indexed: 10/19/2022] Open
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Pre-implantation genetic diagnosis. Best Pract Res Clin Obstet Gynaecol 2017; 39:74-88. [DOI: 10.1016/j.bpobgyn.2016.10.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 09/06/2016] [Accepted: 10/14/2016] [Indexed: 12/11/2022]
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Trachoo O, Satirapod C, Panthan B, Sukprasert M, Charoenyingwattana A, Chantratita W, Choktanasiri W, Hongeng S. First successful trial of preimplantation genetic diagnosis for pantothenate kinase-associated neurodegeneration. J Assist Reprod Genet 2016; 34:109-116. [PMID: 27815806 DOI: 10.1007/s10815-016-0833-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 10/23/2016] [Indexed: 11/26/2022] Open
Abstract
PURPOSE We aim to present a case of a healthy infant born after intracytoplasmic sperm injection-in vitro fertilization (ICSI-IVF) with a preimplantation genetic diagnosis (PGD) for pantothenate kinase-associated neurodegeneration (PKAN) due to PANK2 mutation. METHODS ICSI-IVF was performed on a Thai couple, 34-year-old female and 33-year-old male, with a family history of PKAN in their first child. Following fertilization, each of the embryos were biopsied in the cleavage stage and subsequently processed for whole-genome amplification. Genetic status of the embryos was diagnosed by linkage analysis and direct mutation testing using primer extension-based mini-sequencing. Comprehensive chromosomal aneuploidy screening was performed using a next-generation sequencing-based strategy. RESULTS Only a single cycle of ICSI-IVF was processed. There were seven embryos from this couple-two were likely affected, three were likely carriers, one was likely unaffected, and one failed in target genome amplification. Aneuploidy screening was performed before making a decision on embryo transfer, and only one unaffected embryo passed the screening. That embryo was transferred in a frozen thawed cycle, and the pregnancy was successful. The diagnosis was confirmed by amniocentesis, which presented with a result consistent with PGD. At 38 weeks of gestational age, a healthy male baby was born. Postnatal genetic confirmation was also consistent with PGD and the prenatal results. At the age of 24 months, the baby presented with normal growth and development lacking any neurological symptoms. CONCLUSIONS We report the first successful trial of PGD for PKAN in a developing country using linkage analysis and mini-sequencing in cleavage stage embryos.
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Affiliation(s)
- Objoon Trachoo
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, 270 Rama 6 Road Ratchathewi, Bangkok, 10400, Thailand.
- Center for Medical Genomics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand.
- Graduate Program in Translational Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand.
| | - Chonthicha Satirapod
- Department of Obstetrics-Gynecology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
| | - Bhakbhoom Panthan
- Center for Medical Genomics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
- Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
| | - Matchuporn Sukprasert
- Department of Obstetrics-Gynecology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
| | - Angkana Charoenyingwattana
- Center for Medical Genomics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
| | - Wasun Chantratita
- Center for Medical Genomics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
- Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
| | - Wicharn Choktanasiri
- Department of Obstetrics-Gynecology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
| | - Suradej Hongeng
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, 10400, Thailand
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Chen M, Chan JKY, Nadarajah S, Tan ASC, Chan MLH, Mathew J, Saw EEL, Lim C, Wong W, Cheah FSH, Law HY, Wong PC, Chong SS. Single-tube nonaplex microsatellite PCR panel for preimplantation genetic diagnosis of Hb Bart's hydrops fetalis syndrome. Prenat Diagn 2015; 35:534-43. [DOI: 10.1002/pd.4568] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Revised: 01/19/2015] [Accepted: 01/25/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Min Chen
- Yong Loo Lin School of Medicine, Department of Pediatrics; National University of Singapore; Singapore
| | - Jerry K. Y. Chan
- KKIVF Center, Department of Reproductive Medicine; KK Women's and Children's Hospital; Singapore
| | - Sadhana Nadarajah
- KKIVF Center, Department of Reproductive Medicine; KK Women's and Children's Hospital; Singapore
| | - Arnold S. C. Tan
- Yong Loo Lin School of Medicine, Department of Pediatrics; National University of Singapore; Singapore
- Preimplantation Genetic Diagnosis Center, Khoo Teck Puat - National University Children's Medical Institute; National University Health System; Singapore
| | - Melinda L. H. Chan
- KKIVF Center, Department of Reproductive Medicine; KK Women's and Children's Hospital; Singapore
| | - Joyce Mathew
- Clinic for Human Reproduction, Department of Obstetrics and Gynecology; National University Hospital; Singapore
| | - Eugene E. L. Saw
- Preimplantation Genetic Diagnosis Center, Khoo Teck Puat - National University Children's Medical Institute; National University Health System; Singapore
| | - Cheryl Lim
- KKIVF Center, Department of Reproductive Medicine; KK Women's and Children's Hospital; Singapore
| | - Wendy Wong
- KKIVF Center, Department of Reproductive Medicine; KK Women's and Children's Hospital; Singapore
| | - Felicia S. H. Cheah
- Preimplantation Genetic Diagnosis Center, Khoo Teck Puat - National University Children's Medical Institute; National University Health System; Singapore
| | - Hai-Yang Law
- Department of Paediatric Medicine; KK Women's and Children's Hospital; Singapore
- Paediatrics Academic Clinical Program; Duke-NUS Graduate Medical School; Singapore
| | - Peng-Cheang Wong
- Clinic for Human Reproduction, Department of Obstetrics and Gynecology; National University Hospital; Singapore
| | - Samuel S. Chong
- Yong Loo Lin School of Medicine, Department of Pediatrics; National University of Singapore; Singapore
- Preimplantation Genetic Diagnosis Center, Khoo Teck Puat - National University Children's Medical Institute; National University Health System; Singapore
- Department of Laboratory Medicine; National University Hospital; Singapore
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Yu L, Wu W, Lie P, Liu Y, Zeng L. Isothermal Strand-Displacement Polymerase Reaction for Visual Detection of the Southeast Asian–Type Deletion of α-Thalassemia. J Mol Diagn 2013; 15:776-82. [DOI: 10.1016/j.jmoldx.2013.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 05/21/2013] [Accepted: 06/18/2013] [Indexed: 10/26/2022] Open
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Traeger-Synodinos J. Preimplantation genetic diagnosis, an alternative to conventional prenatal diagnosis of the hemoglobinopathies. Int J Lab Hematol 2013; 35:571-9. [DOI: 10.1111/ijlh.12086] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 01/28/2013] [Indexed: 12/01/2022]
Affiliation(s)
- J. Traeger-Synodinos
- Department of Medical Genetics; National and Kapodistrian University of Athens; St. Sophia's Children's Hospital; Athens Greece
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