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Huang P, Peslak SA, Ren R, Khandros E, Qin K, Keller CA, Giardine B, Bell HW, Lan X, Sharma M, Horton JR, Abdulmalik O, Chou ST, Shi J, Crossley M, Hardison RC, Cheng X, Blobel GA. Author Correction: HIC2 controls developmental hemoglobin switching by repressing BCL11A transcription. Nat Genet 2023; 55:1608. [PMID: 37524792 DOI: 10.1038/s41588-023-01488-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Affiliation(s)
- Peng Huang
- Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - Scott A Peslak
- Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Division of Hematology/Oncology, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Ren Ren
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Eugene Khandros
- Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Kunhua Qin
- Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Cheryl A Keller
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA
- Genomics Research Incubator, Pennsylvania State University, University Park, PA, USA
| | - Belinda Giardine
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA
| | - Henry W Bell
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Sydney, New South Wales, Australia
| | - Xianjiang Lan
- Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Malini Sharma
- Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - John R Horton
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Osheiza Abdulmalik
- Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Stella T Chou
- Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Junwei Shi
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Merlin Crossley
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Sydney, New South Wales, Australia
| | - Ross C Hardison
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA
| | - Xiaodong Cheng
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gerd A Blobel
- Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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Mayuranathan T, Newby GA, Feng R, Yao Y, Mayberry KD, Lazzarotto CR, Li Y, Levine RM, Nimmagadda N, Dempsey E, Kang G, Porter SN, Doerfler PA, Zhang J, Jang Y, Chen J, Bell HW, Crossley M, Bhoopalan SV, Sharma A, Tisdale JF, Pruett-Miller SM, Cheng Y, Tsai SQ, Liu DR, Weiss MJ, Yen JS. Potent and uniform fetal hemoglobin induction via base editing. Nat Genet 2023; 55:1210-1220. [PMID: 37400614 PMCID: PMC10722557 DOI: 10.1038/s41588-023-01434-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 05/23/2023] [Indexed: 07/05/2023]
Abstract
Inducing fetal hemoglobin (HbF) in red blood cells can alleviate β-thalassemia and sickle cell disease. We compared five strategies in CD34+ hematopoietic stem and progenitor cells, using either Cas9 nuclease or adenine base editors. The most potent modification was adenine base editor generation of γ-globin -175A>G. Homozygous -175A>G edited erythroid colonies expressed 81 ± 7% HbF versus 17 ± 11% in unedited controls, whereas HbF levels were lower and more variable for two Cas9 strategies targeting a BCL11A binding motif in the γ-globin promoter or a BCL11A erythroid enhancer. The -175A>G base edit also induced HbF more potently than a Cas9 approach in red blood cells generated after transplantation of CD34+ hematopoietic stem and progenitor cells into mice. Our data suggest a strategy for potent, uniform induction of HbF and provide insights into γ-globin gene regulation. More generally, we demonstrate that diverse indels generated by Cas9 can cause unexpected phenotypic variation that can be circumvented by base editing.
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Affiliation(s)
| | - Gregory A Newby
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA
| | - Ruopeng Feng
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Yu Yao
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Kalin D Mayberry
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Cicera R Lazzarotto
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Yichao Li
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Rachel M Levine
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Nikitha Nimmagadda
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Erin Dempsey
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Guolian Kang
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Shaina N Porter
- Department of Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Phillip A Doerfler
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Jingjing Zhang
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Yoonjeong Jang
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Jingjing Chen
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Henry W Bell
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Merlin Crossley
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | | | - Akshay Sharma
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - John F Tisdale
- Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute and National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - Shondra M Pruett-Miller
- Department of Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Yong Cheng
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Shengdar Q Tsai
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - David R Liu
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of Harvard and MIT, Cambridge, MA, USA.
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA.
- Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA.
| | - Mitchell J Weiss
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA.
| | - Jonathan S Yen
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN, USA.
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Huang P, Peslak SA, Ren R, Khandros E, Qin K, Keller CA, Giardine B, Bell HW, Lan X, Sharma M, Horton JR, Abdulmalik O, Chou ST, Shi J, Crossley M, Hardison RC, Cheng X, Blobel GA. HIC2 controls developmental hemoglobin switching by repressing BCL11A transcription. Nat Genet 2022; 54:1417-1426. [PMID: 35941187 PMCID: PMC9940634 DOI: 10.1038/s41588-022-01152-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 07/05/2022] [Indexed: 02/02/2023]
Abstract
The fetal-to-adult switch in hemoglobin production is a model of developmental gene control with relevance to the treatment of hemoglobinopathies. The expression of transcription factor BCL11A, which represses fetal β-type globin (HBG) genes in adult erythroid cells, is predominantly controlled at the transcriptional level but the underlying mechanism is unclear. We identify HIC2 as a repressor of BCL11A transcription. HIC2 and BCL11A are reciprocally expressed during development. Forced expression of HIC2 in adult erythroid cells inhibits BCL11A transcription and induces HBG expression. HIC2 binds to erythroid BCL11A enhancers to reduce chromatin accessibility and binding of transcription factor GATA1, diminishing enhancer activity and enhancer-promoter contacts. DNA-binding and crystallography studies reveal direct steric hindrance as one mechanism by which HIC2 inhibits GATA1 binding at a critical BCL11A enhancer. Conversely, loss of HIC2 in fetal erythroblasts increases enhancer accessibility, GATA1 binding and BCL11A transcription. HIC2 emerges as an evolutionarily conserved regulator of hemoglobin switching via developmental control of BCL11A.
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Affiliation(s)
- Peng Huang
- Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - Scott A. Peslak
- Division of Hematology, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA.,Division of Hematology/Oncology, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Ren Ren
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Eugene Khandros
- Division of Hematology, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Kunhua Qin
- Division of Hematology, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Cheryl A. Keller
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA.,Genomics Research Incubator, Pennsylvania State University, University Park, PA, USA
| | - Belinda Giardine
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA
| | - Henry W. Bell
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Sydney, New South Wales, Australia
| | - Xianjiang Lan
- Division of Hematology, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Malini Sharma
- Division of Hematology, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - John R. Horton
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Osheiza Abdulmalik
- Division of Hematology, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Stella T. Chou
- Division of Hematology, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - Junwei Shi
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Merlin Crossley
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Sydney, New South Wales, Australia
| | - Ross C. Hardison
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA
| | - Xiaodong Cheng
- Department of Epigenetics and Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gerd A. Blobel
- Division of Hematology, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA.,Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Correspondence and requests for materials should be addressed to Peng Huang or Gerd A. Blobel. ;
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