Cellular function reinstitution of offspring red blood cells cloned from the sickle cell disease patient blood post CRISPR genome editing

Abstract Background Sickle cell disease (SCD) is a disorder of red blood cells (RBCs) expressing abnormal hemoglobin-S (HbS) due to genetic inheritance of homologous HbS gene. However, people with the sickle cell trait (SCT) carry a single allele of HbS and do not usually suffer from SCD symptoms, t...

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Main Authors: Jianguo Wen, Wenjing Tao, Suyang Hao, Youli Zu
Format: Article
Language:English
Published: BMC 2017-06-01
Series:Journal of Hematology & Oncology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13045-017-0489-9
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author Jianguo Wen
Wenjing Tao
Suyang Hao
Youli Zu
author_facet Jianguo Wen
Wenjing Tao
Suyang Hao
Youli Zu
author_sort Jianguo Wen
collection DOAJ
description Abstract Background Sickle cell disease (SCD) is a disorder of red blood cells (RBCs) expressing abnormal hemoglobin-S (HbS) due to genetic inheritance of homologous HbS gene. However, people with the sickle cell trait (SCT) carry a single allele of HbS and do not usually suffer from SCD symptoms, thus providing a rationale to treat SCD. Methods To validate gene therapy potential, hematopoietic stem cells were isolated from the SCD patient blood and treated with CRISPR/Cas9 approach. To precisely dissect genome-editing effects, erythroid progenitor cells were cloned from single colonies of CRISPR-treated cells and then expanded for simultaneous gene, protein, and cellular function studies. Results Genotyping and sequencing analysis revealed that the genome-edited erythroid progenitor colonies were converted to SCT genotype from SCD genotype. HPLC protein assays confirmed reinstallation of normal hemoglobin at a similar level with HbS in the cloned genome-edited erythroid progenitor cells. For cell function evaluation, in vitro RBC differentiation of the cloned erythroid progenitor cells was induced. As expected, cell sickling assays indicated function reinstitution of the genome-edited offspring SCD RBCs, which became more resistant to sickling under hypoxia condition. Conclusions This study is an exploration of genome editing of SCD HSPCs.
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spelling doaj.art-5edf25f97b09426b89722d533f4786992022-12-21T18:29:30ZengBMCJournal of Hematology & Oncology1756-87222017-06-0110111110.1186/s13045-017-0489-9Cellular function reinstitution of offspring red blood cells cloned from the sickle cell disease patient blood post CRISPR genome editingJianguo Wen0Wenjing Tao1Suyang Hao2Youli Zu3Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston Methodist Research InstituteDepartment of Leukemia, The University of Texas M.D. Anderson Cancer CenterDepartment of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston Methodist Research InstituteDepartment of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston Methodist Research InstituteAbstract Background Sickle cell disease (SCD) is a disorder of red blood cells (RBCs) expressing abnormal hemoglobin-S (HbS) due to genetic inheritance of homologous HbS gene. However, people with the sickle cell trait (SCT) carry a single allele of HbS and do not usually suffer from SCD symptoms, thus providing a rationale to treat SCD. Methods To validate gene therapy potential, hematopoietic stem cells were isolated from the SCD patient blood and treated with CRISPR/Cas9 approach. To precisely dissect genome-editing effects, erythroid progenitor cells were cloned from single colonies of CRISPR-treated cells and then expanded for simultaneous gene, protein, and cellular function studies. Results Genotyping and sequencing analysis revealed that the genome-edited erythroid progenitor colonies were converted to SCT genotype from SCD genotype. HPLC protein assays confirmed reinstallation of normal hemoglobin at a similar level with HbS in the cloned genome-edited erythroid progenitor cells. For cell function evaluation, in vitro RBC differentiation of the cloned erythroid progenitor cells was induced. As expected, cell sickling assays indicated function reinstitution of the genome-edited offspring SCD RBCs, which became more resistant to sickling under hypoxia condition. Conclusions This study is an exploration of genome editing of SCD HSPCs.http://link.springer.com/article/10.1186/s13045-017-0489-9CRISPR/Cas9 genome editingHematopoietic stem/progenitor cell coloniesSickle cell disease
spellingShingle Jianguo Wen
Wenjing Tao
Suyang Hao
Youli Zu
Cellular function reinstitution of offspring red blood cells cloned from the sickle cell disease patient blood post CRISPR genome editing
Journal of Hematology & Oncology
CRISPR/Cas9 genome editing
Hematopoietic stem/progenitor cell colonies
Sickle cell disease
title Cellular function reinstitution of offspring red blood cells cloned from the sickle cell disease patient blood post CRISPR genome editing
title_full Cellular function reinstitution of offspring red blood cells cloned from the sickle cell disease patient blood post CRISPR genome editing
title_fullStr Cellular function reinstitution of offspring red blood cells cloned from the sickle cell disease patient blood post CRISPR genome editing
title_full_unstemmed Cellular function reinstitution of offspring red blood cells cloned from the sickle cell disease patient blood post CRISPR genome editing
title_short Cellular function reinstitution of offspring red blood cells cloned from the sickle cell disease patient blood post CRISPR genome editing
title_sort cellular function reinstitution of offspring red blood cells cloned from the sickle cell disease patient blood post crispr genome editing
topic CRISPR/Cas9 genome editing
Hematopoietic stem/progenitor cell colonies
Sickle cell disease
url http://link.springer.com/article/10.1186/s13045-017-0489-9
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