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Zhuang J, Chen C, Fu W, Wang Y, Zhuang Q, Lu Y, Xie T, Xu R, Zeng S, Jiang Y, Xie Y, Wang G. Third-Generation Sequencing as a New Comprehensive Technology for Identifying Rare α- and β-Globin Gene Variants in Thalassemia Alleles in the Chinese Population. Arch Pathol Lab Med 2023; 147:208-214. [PMID: 35639603 DOI: 10.5858/arpa.2021-0510-oa] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2021] [Indexed: 02/05/2023]
Abstract
CONTEXT.— Identification of rare thalassemia variants requires a combination of multiple diagnostic technologies. OBJECTIVE.— To investigate a new approach of comprehensive analysis of thalassemia alleles based on third-generation sequencing (TGS) for identification of α- and β-globin gene variants. DESIGN.— Enrolled in this study were 70 suspected carriers of rare thalassemia variants. Routine gap-polymerase chain reaction and DNA sequencing were used to detect rare thalassemia variants, and TGS technology was performed to identify α- and β-globin gene variants. RESULTS.— Twenty-three cases that carried rare variants in α- and β-globin genes were identified by the routine detection methods. TGS technology yielded a 7.14% (5 of 70) increment of rare α- and β-globin gene variants as compared with the routine methods. Among them, the rare deletional genotype of -THAI was the most common variant. In addition, rare variants of CD15 (G>A) (HBA2:c.46G>A), CD117/118(+TCA) (HBA1:c.354_355insTCA), and β-thalassemia 3.5-kilobase gene deletion were first identified in Fujian Province, China; to the best of our knowledge, this is the second report in the Chinese population. Moreover, HBA1:c.-24C>G, IVS-II-55 (G>T) (HBA1:c.300+55G>T) and hemoglobin (Hb) Maranon (HBA2:c.94A>G) were first identified in the Chinese population. We also identified rare Hb variants of HbC, HbG-Honolulu, Hb Miyashiro, and HbG-Coushatta in this study. CONCLUSIONS.— TGS technology can effectively and accurately detect deletional and nondeletional thalassemia variants simultaneously in one experiment. Our study also demonstrated the application value of TGS-based comprehensive analysis of thalassemia alleles in the detection of rare thalassemia gene variants.
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Affiliation(s)
- Jianlong Zhuang
- From the Prenatal Diagnosis Center (J. Zhuang, Fu, Y. Wang, Q. Zhuang, Zeng, Jiang), Quanzhou Women's and Children's Hospital, Quanzhou, Fujian Province, China
| | - Chunnuan Chen
- From the Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, China (Chen)
| | - Wanyu Fu
- From the Prenatal Diagnosis Center (J. Zhuang, Fu, Y. Wang, Q. Zhuang, Zeng, Jiang), Quanzhou Women's and Children's Hospital, Quanzhou, Fujian Province, China
| | - Yuanbai Wang
- From the Prenatal Diagnosis Center (J. Zhuang, Fu, Y. Wang, Q. Zhuang, Zeng, Jiang), Quanzhou Women's and Children's Hospital, Quanzhou, Fujian Province, China
| | - Qianmei Zhuang
- From the Prenatal Diagnosis Center (J. Zhuang, Fu, Y. Wang, Q. Zhuang, Zeng, Jiang), Quanzhou Women's and Children's Hospital, Quanzhou, Fujian Province, China
| | - Yulin Lu
- From the Third-Generation Sequencing Business Unit, Berry Genomics Corporation, Beijing, China (Lu, T. Xie, Xu)
| | - Tiantian Xie
- From the Third-Generation Sequencing Business Unit, Berry Genomics Corporation, Beijing, China (Lu, T. Xie, Xu).,From the Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China (Y. Xie)
| | - Ruofan Xu
- From the Third-Generation Sequencing Business Unit, Berry Genomics Corporation, Beijing, China (Lu, T. Xie, Xu)
| | - Shuhong Zeng
- From the Prenatal Diagnosis Center (J. Zhuang, Fu, Y. Wang, Q. Zhuang, Zeng, Jiang), Quanzhou Women's and Children's Hospital, Quanzhou, Fujian Province, China
| | - Yuying Jiang
- From the Prenatal Diagnosis Center (J. Zhuang, Fu, Y. Wang, Q. Zhuang, Zeng, Jiang), Quanzhou Women's and Children's Hospital, Quanzhou, Fujian Province, China.,Authors Jiang, Y. Xie and G. Wang are co-lead authors
| | - Yingjun Xie
- From the Third-Generation Sequencing Business Unit, Berry Genomics Corporation, Beijing, China (Lu, T. Xie, Xu).,From the Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China (Y. Xie).,Authors Jiang, Y. Xie and G. Wang are co-lead authors
| | - Gaoxiong Wang
- From the Prenatal Diagnosis Center (J. Zhuang, Fu, Y. Wang, Q. Zhuang, Zeng, Jiang), Quanzhou Women's and Children's Hospital, Quanzhou, Fujian Province, China.,From the Department of Surgery (G. Wang), Quanzhou Women's and Children's Hospital, Quanzhou, Fujian Province, China.,Authors Jiang, Y. Xie and G. Wang are co-lead authors
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de la Fuente-Gonzalo F, Nieto JM, Villegas A, González FA, Martínez R, Ropero P. Characterization of deletional and non-deletional alpha globin variants in a large cohort from Spain between 2009 and 2014. Ann Hematol 2019; 98:1537-1545. [PMID: 31025160 DOI: 10.1007/s00277-019-03696-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 04/15/2019] [Indexed: 11/30/2022]
Abstract
The hemoglobinopathies are a group of disorders passed down through families (inherited) in which there is abnormal production or structure of the hemoglobin molecule. They are among the most common inherited diseases around the world. Those that produce abnormal hemoglobin are called structural hemoglobinopathies while thalassemia is another type of disorder that is caused by a defect in the gene production of the globin chains. In a study ambispective comprising 1623 patients, 153 subjects showed an abnormal hemoglobin and 1470 with hypochromic and microcytic anemia, and of these 1470, 23 patients were studied for simultaneously α-thalassemias and structural hemoglobinopathies. Among the α-thalassaemia cases, 1282 cases (87.2%) were deletional α-thalassemia, 172 cases (11.7%) were non-deletional α-thalassemia, and 16 cases (1.1%) were deletional and non-deletional α-thalassamias simultaneously. Thus, approximately 12% of the cases were non-deletional α-thalassaemia. Clinical diagnosis, only 19 severe cases (1 hydrops fetalis and 18 instances of Hb H disease), 1200 thalassamias traits, and 160 thalassaemia silent carriers were recorded within the α-thalassaemia. Regarding structural hemoglobinopathies, there were only 2 cases of hemoglobinopathies with low oxygen affinity and 1 case of hemoglobin M; the remaining 150 were silent hemoglobinopathies. Non-deletional α-thalassaemia represented 12% of all α-thalassemias in our region; the most common deletion in our area was the 3.7-kb deletions, followed by Asian --(SEA) and --(FIL). The alterations responsible for non-deletional α-thalassaemia are most represented by the Hph and Hb Groene Hart and, in the case of structural hemoglobinopathies, Hb Le Lamentin and Hb J-Paris.
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Affiliation(s)
| | - Jorge M Nieto
- Servicio de Hematología y Hemoterapia, Hospital Clínico San Carlos, Madrid, Spain
| | - Ana Villegas
- Servicio de Hematología y Hemoterapia, Hospital Clínico San Carlos, Madrid, Spain
| | - Fernando A González
- Servicio de Hematología y Hemoterapia, Hospital Clínico San Carlos, Madrid, Spain
| | - Rafael Martínez
- Servicio de Hematología y Hemoterapia, Hospital Clínico San Carlos, Madrid, Spain
| | - Paloma Ropero
- Servicio de Hematología y Hemoterapia, Hospital Clínico San Carlos, Madrid, Spain.
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Wajcman H, de Brevern AG, Riou J, Latouche C, Marden MC, Pissard S. Short in-Frame Insertions/Deletions in the Coding Sequence of the α-Globin Gene. Consequences of the 3D Structure and Resulting Phenotypes: Hb Choisy as an Example. Hemoglobin 2019; 42:287-293. [PMID: 30700179 DOI: 10.1080/03630269.2018.1556683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A small group of hemoglobin (Hb) variants result from 'in-frame' deletion/insertion (del/ins). We describe a new variant of this group (Hb Choisy), found on the α1 gene, which is the exact counterpart of a previously published deletional variant, Hb J-Biskra [codons 51-58 (or codons 52-59) (-24 bp) (-TCTGCCCAGGTTAAGGGCCACGGC); HBA1: c.157_180del (or HBA2)]. In Hb J-Biskra, the sequence Ser-Ala-Gln-Val-Lys-Gly-His-Gly located from positions α52(E1) to α59(E8) is deleted, while in Hb Choisy the same sequence (Ser-Ala-Gln-Val-Lys-Gly-His-Gly) is inserted at position α52(E1). The variant carrying the insertion appears to be less damaging than the one with the deletion. A possible explanation could be that the additional sequence is located in the C to E interhelical region, and is less disturbing to the general structure of the globin chain. This insertion/deletion (ins/del) is likely favored by the repetition, at an interval of 16 nucleotides, of an eight nucleotide sequence. Comparison of variants of this group, found in the HbVar database, shows that structural modifications resulting from insertions are frequently less damaging than that caused by deletions.
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Affiliation(s)
- Henri Wajcman
- a Institut National de la Sante et de la Recherche Médicale (INSERM) U 955 eq 2 , Institut Mondor de Recherche Biomoléculaire (IMRB) , Créteil , France
| | - Alexandre G de Brevern
- b Biologie Integree du Globule Rouge Unité Mixte de Recherche (UMR)-S1134, INSERM , Université Paris Diderot, Sorbonne, Paris Cite, Université de la Réunion, Université des Antilles , Paris , France.,c Institut National de la Transfusion Sanguine (INTS) , Paris , France.,e Laboratoire d'Excellence GR-Ex , Créteil , France
| | - Jean Riou
- d Assistance Publique-Hôpitaux de Paris (APHP), Département de Génétique , Hôpital Henri Mondor , Créteil , France
| | - Celine Latouche
- d Assistance Publique-Hôpitaux de Paris (APHP), Département de Génétique , Hôpital Henri Mondor , Créteil , France
| | - Michael C Marden
- a Institut National de la Sante et de la Recherche Médicale (INSERM) U 955 eq 2 , Institut Mondor de Recherche Biomoléculaire (IMRB) , Créteil , France.,e Laboratoire d'Excellence GR-Ex , Créteil , France
| | - Serge Pissard
- a Institut National de la Sante et de la Recherche Médicale (INSERM) U 955 eq 2 , Institut Mondor de Recherche Biomoléculaire (IMRB) , Créteil , France.,d Assistance Publique-Hôpitaux de Paris (APHP), Département de Génétique , Hôpital Henri Mondor , Créteil , France.,e Laboratoire d'Excellence GR-Ex , Créteil , France
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Brennan SO, Wang D, Horridge M, Sheen CR. Hb Amsterdam-A1 [α32(B13)Met→Ile; HBA1: c.99G>A]: A Hyperunstable Variant Due to a New Mutation on the α1 Gene. Hemoglobin 2017; 41:140-143. [DOI: 10.1080/03630269.2017.1311911] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Stephen O. Brennan
- Molecular Pathology Laboratory, University of Otago, Christchurch, New Zealand
- Canterbury Health Laboratories, Christchurch, New Zealand
| | - Darrell Wang
- Canterbury Health Laboratories, Christchurch, New Zealand
| | - Mark Horridge
- Canterbury Health Laboratories, Christchurch, New Zealand
| | - Campbell R. Sheen
- Protein Science and Engineering, Callaghan Innovation, Christchurch, New Zealand
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Lin L, Chen B, Yi S, Chen Q, Wei H, Li G, Zheng C, Qiu XX, He S. A Novel α2-Globin Gene Mutation: Hb Debao [α31(B12)Arg→Trp; HBA2: c.94A>T]. Hemoglobin 2017; 41:65-67. [PMID: 28367658 DOI: 10.1080/03630269.2017.1289102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
We report a novel mutation on the α2-globin gene, Hb Debao [α31(B12)Arg→Trp; HBA2: c.94A>T] detected in a Chinese family. This mutation gives rise to a previously undescribed hemoglobin (Hb) variant that was undetectable by electrophoretic or chromatographic methods. Hb Debao was associated with an α+-thalassemia (α+-thal) deletion [-α3.7 (rightward)] producing a mild phenotype with significant microcytosis and hypochromia, while the combination of this mutation with an α0-thal deletion (--SEA) resulting in a severe form of Hb H (β4) disease, which is consistent with a thalassemic phenotype associated with the novel mutation.
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Affiliation(s)
- Li Lin
- a Prenatal Diagnosis Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , PR China
| | - Biyan Chen
- a Prenatal Diagnosis Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , PR China
| | - Shang Yi
- a Prenatal Diagnosis Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , PR China
| | - Qiuli Chen
- a Prenatal Diagnosis Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , PR China
| | - Hongwei Wei
- a Prenatal Diagnosis Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , PR China
| | - Guojian Li
- b Research Department , Guangxi Zhuang Autonomous Region Health and Family Planning Commission , Nanning , PR China
| | - Chenguang Zheng
- a Prenatal Diagnosis Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , PR China
| | - Xiao-Xia Qiu
- a Prenatal Diagnosis Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , PR China
| | - Sheng He
- a Prenatal Diagnosis Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , PR China
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He S, Qin Q, Lin L, Chen Q, Yi S, Wei H, Du J, Zheng C, Qiu X, Chen B. Complex Interaction of Hb Q-Thailand with α 0- and β 0-Thalassemia in a Chinese Family. Hemoglobin 2017; 41:68-72. [PMID: 28475397 DOI: 10.1080/03630269.2017.1295985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Hb Q-Thailand [α74(EF3)Asp→His (α1); HBA1: c.223 G>C] is an abnormal hemoglobin (Hb), variant found mainly in China and Southeast Asian countries. The association of the αQ-Thailand allele with other globin gene disorders has important implications in diagnosis. Here, we report a hitherto undescribed condition of patients with a double heterozygosity for Hb Q-Thailand with α0-thalassemia (α0-thal) and in combination with β0-thalassemia (β0-thal) in a Chinese family. Our study will provide some clinical manifestations, laboratory diagnosis and genetic counseling for complex hemoglobinopathies.
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Affiliation(s)
- Sheng He
- a Prenatal Diagnostic Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , Guangxi , People's Republic of China
| | - Qian Qin
- b Prenatal Diagnostic Center , Baise Women and Children Care Hospital , Baise , Guangxi , People's Republic of China
| | - Li Lin
- a Prenatal Diagnostic Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , Guangxi , People's Republic of China
| | - Qiuli Chen
- a Prenatal Diagnostic Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , Guangxi , People's Republic of China
| | - Shang Yi
- a Prenatal Diagnostic Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , Guangxi , People's Republic of China
| | - Honhwei Wei
- a Prenatal Diagnostic Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , Guangxi , People's Republic of China
| | - Juan Du
- a Prenatal Diagnostic Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , Guangxi , People's Republic of China
| | - Chenguang Zheng
- a Prenatal Diagnostic Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , Guangxi , People's Republic of China
| | - Xiaoxia Qiu
- a Prenatal Diagnostic Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , Guangxi , People's Republic of China
| | - Biyan Chen
- a Prenatal Diagnostic Center , Guangxi Zhuang Autonomous Region Women and Children Care Hospital , Nanning , Guangxi , People's Republic of China
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