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Ultrastructural characteristics of erythroid cells in congenital dyserythropoietic anemia type II, with a focus on peripheral cisternae and double membranes. BLOOD SCIENCE 2022; 5:25-31. [PMID: 36742183 PMCID: PMC9891439 DOI: 10.1097/bs9.0000000000000136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 09/19/2022] [Indexed: 01/20/2023] Open
Abstract
Peripheral cisternae and double membranes (PCDMs) in erythroid cells are a landmark of type II congenital dyserythropoietic anemia (CDA). To gain further insights into the mechanism of dyserythropoiesis, erythroblasts and erythrocytes in bone marrow were studied in 22 Chinese patients with CDA Ⅱ by transmission electron microscopy. The study demonstrated an increase in all patients in erythroblasts with PCDMs with development from pro-erythroblast to red blood cells. PCDMs often connected with cisternae of endoplasmic reticulum (ER) and the perinuclear space, and were accompanied by karyopyknosis, karyolysis and disruption in polychromatic and orthochromatic erythroblasts. The results suggest that PCDMs are transformed from ER during erythropoiesis and participate in the dissolution and deletion of late erythroid cells in patients with CDA II.
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Alam MJ, Mandal AK, Mandal S, Jana JK. SEC23B missense mutation-associated congenital dyserythropoietic anaemia type II in a child: a rare mimic of chronic haemolytic anaemia. BMJ Case Rep 2022; 15:e251092. [PMID: 35820731 PMCID: PMC9277374 DOI: 10.1136/bcr-2022-251092] [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: 11/03/2022] Open
Abstract
We report a case of congenital dyserythropoietic anaemia (CDA) type II in a female child, which is an extremely rare cause of hereditary anaemia. The patient, still in her early childhood, presented to us with transfusion-dependent anaemia, unexplained jaundice, passage of cola-coloured urine and hepatosplenomegaly. Further investigations revealed evidence of iron overload, ineffective erythropoiesis and inadequate bone marrow response. Bone marrow aspiration study demonstrated dyserythropoiesis and findings typical of CDA type II. Targeted exome genome sequencing was done and identified heterozygous missense mutation of the SEC23B gene. CDA, being clinically similar to other more prevalent causes of anaemia, should be kept in mind especially when the common causes have already been ruled out.
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Affiliation(s)
- Md Jasim Alam
- Pediatrics, Bankura Sammilani Medical College Bankura, Bankura, West Bengal, India
| | | | - Subinay Mandal
- Pediatrics, Bankura Sammilani Medical College Bankura, Bankura, West Bengal, India
| | - Jadab Kumar Jana
- Pediatrics, Bankura Sammilani Medical College Bankura, Bankura, West Bengal, India
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王 燕, 黎 青, 孙 筱, 李 少, 何 健, 张 敏, 黄 玲, 何 文. [Whole exome sequencing analysis of compound heterozygous variants of CDAN1 gene in a Chinese family with non-immune hydrops fetalis]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:1899-1903. [PMID: 35012925 PMCID: PMC8752423 DOI: 10.12122/j.issn.1673-4254.2021.12.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To study the clinical characteristics and genetic variants in a family with non-immune hydrops fetalis. METHODS Peripheral blood samples were collected from a pregnant woman with suspected non-immune hydrops fetalis of the fetus for routine blood analysis, Rh typing and TORCH test. Amniotic fluid sample was collected for G-banded chromosomal karyotyping. The genomic DNA of the proband was extracted for analysis of chromosomal abnormalities using copy number variation sequencing. Whole-exome sequencing (Trios-WES) was performed on Illumina NovaSeq 6000 platform and exonic DNA was enriched using Agilent Sure Select XT Human All Exon V6. Sorting intolerant from tolerant (SIFT), I-mutant2, PolyPhen-2 and PROVEAN were used to predict the potential effects of amino acid substitution on protein function and splicing variation. The spatial structure of codanin-1 was modeled and visualized with Alpha Fold 2 and PyMOL 2.3 software, and the variants with potential clinical significance were confirmed by Sanger sequencing. RESULTS Fetal ultrasound at 17 weeks of gestation showed extensive subcutaneous edema, ascites, pleural effusion, enlarged liver and spleen, thickened placenta and pericardium defect. NGS reveals that proband has carried c.2140C>T, p.R714W, and c.1264_1265delCT, p.L422* compound heterozygous variants of CDAN1 gene, which were found to be pathogenic and inherited from proband's father and mother respectively. CONCLUSION We identified a novel heterozygous CDAN1 gene mutation causing fetal-onset congenital dyserythropoietic anemia type 1, which triggers non-immune hydrops fetalis.
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Affiliation(s)
- 燕超 王
- 广州医科大学附属第三医院妇产科研究所实验部,广东 广州 510150Experimental Department of Institute of Obstetrics and Gynecology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
- 广东省产科重大疾病重点实验室,广东 广州 510150Key Laboratory for Major Obstetrics Diseases of Guangdong Province, Guangzhou 510150, China
- 广东省普通高校生殖与遗传重点实验室,广东 广州 510150Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou 510150, China
| | - 青 黎
- 广州医科大学附属第三医院妇产科研究所实验部,广东 广州 510150Experimental Department of Institute of Obstetrics and Gynecology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
- 广东省产科重大疾病重点实验室,广东 广州 510150Key Laboratory for Major Obstetrics Diseases of Guangdong Province, Guangzhou 510150, China
- 广东省普通高校生殖与遗传重点实验室,广东 广州 510150Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou 510150, China
| | - 筱放 孙
- 广州医科大学附属第三医院妇产科研究所实验部,广东 广州 510150Experimental Department of Institute of Obstetrics and Gynecology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
- 广东省产科重大疾病重点实验室,广东 广州 510150Key Laboratory for Major Obstetrics Diseases of Guangdong Province, Guangzhou 510150, China
- 广东省普通高校生殖与遗传重点实验室,广东 广州 510150Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou 510150, China
| | - 少英 李
- 广州医科大学附属第三医院妇产科研究所实验部,广东 广州 510150Experimental Department of Institute of Obstetrics and Gynecology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
- 广东省产科重大疾病重点实验室,广东 广州 510150Key Laboratory for Major Obstetrics Diseases of Guangdong Province, Guangzhou 510150, China
- 广东省普通高校生殖与遗传重点实验室,广东 广州 510150Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou 510150, China
| | - 健淳 何
- 广州医科大学附属第三医院妇产科研究所实验部,广东 广州 510150Experimental Department of Institute of Obstetrics and Gynecology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
- 广东省普通高校生殖与遗传重点实验室,广东 广州 510150Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou 510150, China
| | - 敏聪 张
- 广州医科大学附属第三医院妇产科研究所实验部,广东 广州 510150Experimental Department of Institute of Obstetrics and Gynecology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - 玲玲 黄
- 广州医科大学附属第三医院妇产科研究所实验部,广东 广州 510150Experimental Department of Institute of Obstetrics and Gynecology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - 文智 何
- 广州医科大学附属第三医院妇产科研究所实验部,广东 广州 510150Experimental Department of Institute of Obstetrics and Gynecology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
- 广东省产科重大疾病重点实验室,广东 广州 510150Key Laboratory for Major Obstetrics Diseases of Guangdong Province, Guangzhou 510150, China
- 广东省普通高校生殖与遗传重点实验室,广东 广州 510150Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou 510150, China
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Fu W, Wang R, Yu J, Hu D, Cai Y, Shao J, Jiang Y. GGVD: A goat genome variation database for tracking the dynamic evolutionary process of selective signatures and ancient introgressions. J Genet Genomics 2021; 48:248-256. [PMID: 33965348 DOI: 10.1016/j.jgg.2021.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 03/12/2021] [Accepted: 03/13/2021] [Indexed: 11/20/2022]
Abstract
Understanding the evolutionary history and adaptive process depends on the knowledge that we can acquire from both ancient and modern genomic data. With the availability of a deluge of whole-genome sequencing data from ancient and modern goat samples, a user-friendly database making efficient reuse of these important resources is needed. Here, we use the genomes of 208 modern domestic goats, 24 bezoars, 46 wild ibexes, and 82 ancient goats to present a comprehensive goat genome variation database (GGVD). GGVD hosts a total of ∼41.44 million SNPs, ∼5.14 million indels, 6,193 selected loci, and 112 introgression regions. Users can freely visualize the frequency of genomic variations in geographical maps, selective sweeps in interactive tables, Manhattan plots, or line charts, as well as the heatmap patterns of the SNP genotype. Ancient data can be shown in haplotypes to track the state of genetic variants of selection and introgression events in the early, middle, and late stages. For facilitating access to sequence features, the UCSC Genome Browser, BLAT, BLAST, LiftOver, and pcadapt are also integrated into GGVD. GGVD will be a convenient tool for population genetic studies and molecular marker designing in goat breeding programs, and it is publicly available at http://animal.nwsuaf.edu.cn/GoatVar.
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Affiliation(s)
- Weiwei Fu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Rui Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jiantao Yu
- College of Information Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Dexiang Hu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yudong Cai
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Junjie Shao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yu Jiang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Congenital dyserythropoietic anemia types Ib, II, and III: novel variants in the CDIN1 gene and functional study of a novel variant in the KIF23 gene. Ann Hematol 2020; 100:353-364. [PMID: 33159567 DOI: 10.1007/s00277-020-04319-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 10/26/2020] [Indexed: 10/23/2022]
Abstract
Congenital dyserythropoietic anemias (CDA) are disorders characterized by ineffective erythropoiesis and morphological anomalies in erythrocytes and erythroblasts. The purpose of this study is to identify the gene variants in patients diagnosed with CDA. We analyzed five unrelated patients and two siblings with a targeted panel of genes to CDA: CDAN1, CDIN1, SEC23B, KIF23, KLF1, and GATA1 genes. We found three novel variants in the CDIN1 gene (p.Leu136Val, p.Tyr247Cys, and p.Ile273Thr), four known variants in the SEC23B gene (p.Arg14Trp, p.Arg554Ter, p.Asp239Gly, and p.Ser436Leu), and one novel variant in the KIF23 gene (p.Leu945Trpfs*31). The in silico analysis of novel variants predict that they are pathogenic and, the in vitro study confirms the functional impact of the KIF23 variant on the protein location.
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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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A case report of congenital erythropoietic anemia II in China with a novel mutation. Ann Hematol 2019; 98:1041-1043. [PMID: 30747246 PMCID: PMC6423316 DOI: 10.1007/s00277-019-03612-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 01/04/2019] [Indexed: 12/01/2022]
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Moreno-Carralero MI, Horta-Herrera S, Morado-Arias M, Ricard-Andrés MP, Lemes-Castellano A, Abio-Calvete M, Cedena-Romero MT, González-Fernández FA, Llorente-González L, Periago-Peralta AM, de-la-Iglesia-Íñigo S, Méndez M, Morán-Jiménez MJ. Clinical and genetic features of congenital dyserythropoietic anemia (CDA). Eur J Haematol 2018; 101:368-378. [PMID: 29901818 DOI: 10.1111/ejh.13112] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2018] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Congenital dyserythropoietic anemias (CDA) are characterized by hyporegenerative anemia with inadequate reticulocyte values, ineffective erythropoiesis, and hemolysis. Distinctive morphology of bone marrow erythroblasts and identification of causative genes allow classification into 4 types caused by variants in CDAN1, c15orf41, SEC23B, KIF23, and KLF1 genes. OBJECTIVE Identify pathogenic variants in CDA patients. METHODS Massive parallel sequencing with a targeted gene panel, Sanger sequencing, Comparative Genome Hybridization (CGH), and in silico predictive analysis of pathogenicity. RESULTS Pathogenic variants were found in 21 of 53 patients studied from 44 unrelated families. Six variants were found in CDAN1: two reported, p.Arg714Trp and p.Arg725Trp and, four novel, p.Arg623Trp, p.Arg946Trp, p.Phe1125Ser and p.Ser1227Gly. Twelve variants were found in SEC23B: seven reported, p.Arg14Trp, p.Glu109Lys, p.Arg217Ter, c.835-2A>G, p.Arg535Ter, p.Arg550Ter and p.Arg718Ter and, five novel, p.Val164Leu, p.Arg190Gln, p.Gln521Ter, p.Arg546Trp, and p.Arg611Gln. The variant p.Glu325Lys in KLF1 was found in one patient and p.Tyr365Cys in ALAS2 in an other. Moreover, we identified genomic rearrangements by CGH in some SEC23B-monoallelic patients. CONCLUSIONS New technologies for genetic studies will help to find variants in other genes, in addition to those known, that contribute to or modulate the CDA phenotype or support the correct diagnosis.
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Affiliation(s)
| | | | - Marta Morado-Arias
- Servicio de Hematología y Hemoterapia, Hospital Universitario La Paz, Madrid, Spain
| | | | - Angelina Lemes-Castellano
- Servicio de Hematología y Hemoterapia, Hospital Universitario de Gran Canaria Doctor Negrín, Las Palmas de Gran Canaria, Gran Canaria, Spain
| | - Mariola Abio-Calvete
- Servicio de Hematología y Hemoterapia, Hospital Virgen de la Salud, Complejo Hospitalario de Toledo, Toledo, Spain
| | | | | | - Laura Llorente-González
- Servicio de Hematología y Hemoterapia, Hospital Universitario Puerta de Hierro, Majadahonda, Spain
| | | | - Silvia de-la-Iglesia-Íñigo
- Servicio de Hematología y Hemoterapia, Hospital Universitario de Gran Canaria Doctor Negrín, Las Palmas de Gran Canaria, Gran Canaria, Spain
| | - Manuel Méndez
- Instituto de Investigación Hospital 12 de Octubre, Madrid, Spain
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Ru YX, Dong SX, Li Y, Zhao SX, Liang HY, Zhu XF, Zheng YZ, Zhang FK. A novel anemia associated with membranous cytoplasm degeneration in 16 patients: an ultrastructural study. Ultrastruct Pathol 2018; 42:350-357. [PMID: 29913101 DOI: 10.1080/01913123.2018.1485807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Sixteen patients with mild anemia and hemolysis were difficult to be classified into any known category based on laboratory examinations and light microscopy. To make a definite diagnosis and investigate the pathomechanism, ultrastructural study was performed on erythroid cells from 16 patients. Transmission electron microscopy demonstrated a series of alterations of cytoplasm, including cytoplasm sequestration, membranous transformation, and degeneration in erythroblasts and reticulocytes at different stages. The affected erythroblasts were usually complicated with chromatin condensation, karyorrhexis, nuclear membrane lysis, and megaloblastic changes. The reticulocytes with the cytoplasm alterations had a huge size from 10 um to 15 um in diameter. The membranous cytoplasm degeneration revealed a unique pathomechanism of dyserythropoiesis and ineffective erythropoiesis in 16 patients with anemia, and suggested a novel anemia category though more details remained to be investigated.
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Affiliation(s)
- Yong-Xin Ru
- a State Key Laboratory of Experimental Hematology, Peking Union Medical College , Institute of Hematology & Blood Diseases Hospital , Beijing , China
| | - Shu-Xu Dong
- a State Key Laboratory of Experimental Hematology, Peking Union Medical College , Institute of Hematology & Blood Diseases Hospital , Beijing , China
| | - Yuan Li
- a State Key Laboratory of Experimental Hematology, Peking Union Medical College , Institute of Hematology & Blood Diseases Hospital , Beijing , China
| | - Shi-Xuan Zhao
- a State Key Laboratory of Experimental Hematology, Peking Union Medical College , Institute of Hematology & Blood Diseases Hospital , Beijing , China
| | - Hao-Yue Liang
- a State Key Laboratory of Experimental Hematology, Peking Union Medical College , Institute of Hematology & Blood Diseases Hospital , Beijing , China
| | - Xiao-Fan Zhu
- a State Key Laboratory of Experimental Hematology, Peking Union Medical College , Institute of Hematology & Blood Diseases Hospital , Beijing , China
| | - Yi-Zhou Zheng
- a State Key Laboratory of Experimental Hematology, Peking Union Medical College , Institute of Hematology & Blood Diseases Hospital , Beijing , China
| | - Feng-Kui Zhang
- a State Key Laboratory of Experimental Hematology, Peking Union Medical College , Institute of Hematology & Blood Diseases Hospital , Beijing , China
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