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Wang C, Hu M, Yu K, Liu W, Hu A, Kuang Y, Huang L, Gajendran B, Zacksenhaus E, Xiao X, Ben-David Y. An intricate regulatory circuit between FLI1 and GATA1/GATA2/LDB1/ERG dictates erythroid vs. megakaryocytic differentiation. Mol Med Rep 2024; 29:107. [PMID: 38695236 PMCID: PMC11082641 DOI: 10.3892/mmr.2024.13231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/21/2024] [Indexed: 05/12/2024] Open
Abstract
During hematopoiesis, megakaryocytic erythroid progenitors (MEPs) differentiate into megakaryocytic or erythroid lineages in response to specific transcriptional factors, yet the regulatory mechanism remains to be elucidated. Using the MEP‑like cell line HEL western blotting, RT‑qPCR, lentivirus‑mediated downregulation, flow cytometry as well as chromatin immunoprecipitation (ChIp) assay demonstrated that the E26 transformation‑specific (ETS) transcription factor friend leukemia integration factor 1 (Fli‑1) inhibits erythroid differentiation. The present study using these methods showed that while FLI1‑mediated downregulation of GATA binding protein 1 (GATA1) suppresses erythropoiesis, its direct transcriptional induction of GATA2 promotes megakaryocytic differentiation. GATA1 is also involved in megakaryocytic differentiation through regulation of GATA2. By contrast to FLI1, the ETS member erythroblast transformation‑specific‑related gene (ERG) negatively controls GATA2 and its overexpression through exogenous transfection blocks megakaryocytic differentiation. In addition, FLI1 regulates expression of LIM Domain Binding 1 (LDB1) during erythroid and megakaryocytic commitment, whereas shRNA‑mediated depletion of LDB1 downregulates FLI1 and GATA2 but increases GATA1 expression. In agreement, LDB1 ablation using shRNA lentivirus expression blocks megakaryocytic differentiation and modestly suppresses erythroid maturation. These results suggested that a certain threshold level of LDB1 expression enables FLI1 to block erythroid differentiation. Overall, FLI1 controlled the commitment of MEP to either erythroid or megakaryocytic lineage through an intricate regulation of GATA1/GATA2, LDB1 and ERG, exposing multiple targets for cell fate commitment and therapeutic intervention.
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Affiliation(s)
- Chunlin Wang
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P.R. China
- Institute of Pharmacology and Biological Activity, Natural Products Research Center of Guizhou Province, Guiyang, Guizhou 550014, P.R. China
| | - Maoting Hu
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P.R. China
- Institute of Pharmacology and Biological Activity, Natural Products Research Center of Guizhou Province, Guiyang, Guizhou 550014, P.R. China
| | - Kunlin Yu
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P.R. China
- Institute of Pharmacology and Biological Activity, Natural Products Research Center of Guizhou Province, Guiyang, Guizhou 550014, P.R. China
| | - Wuling Liu
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P.R. China
- Institute of Pharmacology and Biological Activity, Natural Products Research Center of Guizhou Province, Guiyang, Guizhou 550014, P.R. China
| | - Anling Hu
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P.R. China
- Institute of Pharmacology and Biological Activity, Natural Products Research Center of Guizhou Province, Guiyang, Guizhou 550014, P.R. China
| | - Yi Kuang
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P.R. China
- Institute of Pharmacology and Biological Activity, Natural Products Research Center of Guizhou Province, Guiyang, Guizhou 550014, P.R. China
| | - Lei Huang
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P.R. China
- Institute of Pharmacology and Biological Activity, Natural Products Research Center of Guizhou Province, Guiyang, Guizhou 550014, P.R. China
| | - Babu Gajendran
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P.R. China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China
| | - Eldad Zacksenhaus
- Department of Medicine, University of Toronto, Toronto, Ontario M5S3H2, Canada
- Division of Advanced Diagnostics, Toronto General Research Institute, University Health Network, Toronto, Ontario M5G1L7, Canada
| | - Xiao Xiao
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P.R. China
- Institute of Pharmacology and Biological Activity, Natural Products Research Center of Guizhou Province, Guiyang, Guizhou 550014, P.R. China
| | - Yaacov Ben-David
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, Guizhou 550014, P.R. China
- Institute of Pharmacology and Biological Activity, Natural Products Research Center of Guizhou Province, Guiyang, Guizhou 550014, P.R. China
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2
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Pastori V, Zambanini G, Citterio E, Weiss T, Nakamura Y, Cantù C, Ronchi AE. Transcriptional repression of the oncofetal LIN28B gene by the transcription factor SOX6. Sci Rep 2024; 14:10287. [PMID: 38704454 PMCID: PMC11069503 DOI: 10.1038/s41598-024-60438-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 04/23/2024] [Indexed: 05/06/2024] Open
Abstract
The identification of regulatory networks contributing to fetal/adult gene expression switches is a major challenge in developmental biology and key to understand the aberrant proliferation of cancer cells, which often reactivate fetal oncogenes. One key example is represented by the developmental gene LIN28B, whose aberrant reactivation in adult tissues promotes tumor initiation and progression. Despite the prominent role of LIN28B in development and cancer, the mechanisms of its transcriptional regulation are largely unknown. Here, by using quantitative RT-PCR and single cell RNA sequencing data, we show that in erythropoiesis the expression of the transcription factor SOX6 matched a sharp decline of LIN28B mRNA during human embryo/fetal to adult globin switching. SOX6 overexpression repressed LIN28B not only in a panel of fetal-like erythroid cells (K562, HEL and HUDEP1; ≈92% p < 0.0001, 54% p = 0.0009 and ≈60% p < 0.0001 reduction, respectively), but also in hepatoblastoma HepG2 and neuroblastoma SH-SY5H cells (≈99% p < 0.0001 and ≈59% p < 0.0001 reduction, respectively). SOX6-mediated repression caused downregulation of the LIN28B/Let-7 targets, including MYC and IGF2BP1, and rapidly blocks cell proliferation. Mechanistically, Lin28B repression is accompanied by SOX6 physical binding within its locus, suggesting a direct mechanism of LIN28B downregulation that might contribute to the fetal/adult erythropoietic transition and restrict cancer proliferation.
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Affiliation(s)
- Valentina Pastori
- Dipartimento di Biotecnologie e Bioscienze, Università degli Studi di Milano-Bicocca, Milan, Italy
| | - Gianluca Zambanini
- Wallenberg Centre for Molecular Medicine, Linköping University, Linköping, Sweden
- Division of Molecular Medicine and Virology, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
- Max-Planck-Institut für molekulare Genetik, Berlin, Germany
| | - Elisabetta Citterio
- Dipartimento di Biotecnologie e Bioscienze, Università degli Studi di Milano-Bicocca, Milan, Italy
| | - Tamina Weiss
- Wallenberg Centre for Molecular Medicine, Linköping University, Linköping, Sweden
- Division of Molecular Medicine and Virology, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| | - Yukio Nakamura
- RIKEN BioResource Research Center, Tsukuba, Ibaraki, Japan
| | - Claudio Cantù
- Wallenberg Centre for Molecular Medicine, Linköping University, Linköping, Sweden
- Division of Molecular Medicine and Virology, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| | - Antonella Ellena Ronchi
- Dipartimento di Biotecnologie e Bioscienze, Università degli Studi di Milano-Bicocca, Milan, Italy.
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3
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Guo C, Lv X, Zhang Q, Yi L, Ren Y, Li Z, Yan J, Zheng S, Sun M, Liu S. CRKL but not CRKII contributes to hemin-induced erythroid differentiation of CML. J Cell Mol Med 2024; 28:e18308. [PMID: 38683131 PMCID: PMC11057422 DOI: 10.1111/jcmm.18308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 11/22/2023] [Accepted: 03/26/2024] [Indexed: 05/01/2024] Open
Abstract
Destruction of erythropoiesis process leads to various diseases, including thrombocytopenia, anaemia, and leukaemia. miR-429-CT10 regulation of kinase-like (CRKL) axis involved in development, progression and metastasis of cancers. However, the exact role of miR-429-CRKL axis in leukaemic cell differentiation are still unknown. The current work aimed to uncover the effect of miR-429-CRKL axis on erythropoiesis. In the present study, CRKL upregulation was negatively correlated with miR-429 downregulation in both chronic myeloid leukaemia (CML) patient and CR patient samples. Moreover, CRKL expression level was significantly decreased while miR-429 expression level was increased during the erythroid differentiation of K562 cells following hemin treatment. Functional investigations revealed that overexpression and knockdown of CRKL was remarkably effective in suppressing and promoting hemin-induced erythroid differentiation of K562 cells, whereas, miR-429 exhibited opposite effects to CRKL. Mechanistically, miR-429 regulates erythroid differentiation of K562 cells by downregulating CRKL via selectively targeting CRKL-3'-untranslated region (UTR) through Raf/MEK/ERK pathway. Conversely, CRKII had no effect on erythroid differentiation of K562 cells. Taken together, our data demonstrated that CRKL (but not CRKII) and miR-429 contribute to development, progression and erythropoiesis of CML, miR-429-CRKL axis regulates erythropoiesis of K562 cells via Raf/MEK/ERK pathway, providing novel insights into effective diagnosis and therapy for CML patients.
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MESH Headings
- Humans
- Hemin/pharmacology
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- K562 Cells
- Cell Differentiation/drug effects
- Adaptor Proteins, Signal Transducing/metabolism
- Adaptor Proteins, Signal Transducing/genetics
- Erythroid Cells/metabolism
- Erythroid Cells/drug effects
- Erythroid Cells/pathology
- Erythroid Cells/cytology
- Proto-Oncogene Proteins c-crk/metabolism
- Proto-Oncogene Proteins c-crk/genetics
- Erythropoiesis/genetics
- Erythropoiesis/drug effects
- MAP Kinase Signaling System/drug effects
- 3' Untranslated Regions
- Gene Expression Regulation, Leukemic/drug effects
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Affiliation(s)
- Chunmei Guo
- Department of Biotechnology & Liaoning Key Laboratory of Cancer Stem Cell Research, College of Basic Medical SciencesDalian Medical UniversityDalianLiaoningChina
| | - Xinxin Lv
- Department of Biotechnology & Liaoning Key Laboratory of Cancer Stem Cell Research, College of Basic Medical SciencesDalian Medical UniversityDalianLiaoningChina
| | - Qiuling Zhang
- Department of Biochemistry, College of Basic Medical SciencesDalian Medical UniversityDalianLiaoningChina
| | - Lina Yi
- Department of Biochemistry, College of Basic Medical SciencesDalian Medical UniversityDalianLiaoningChina
| | - Yingying Ren
- Department of Biotechnology & Liaoning Key Laboratory of Cancer Stem Cell Research, College of Basic Medical SciencesDalian Medical UniversityDalianLiaoningChina
| | - Zhaopeng Li
- Department of Biochemistry, College of Basic Medical SciencesDalian Medical UniversityDalianLiaoningChina
| | - Jinsong Yan
- Department of Hematology, The Second Affiliated Hospital of Dalian Medical UniversityInstitute of Stem Cell Transplantation of Dalian Medical UniversityDalianLiaoningChina
| | - Shanliang Zheng
- Department of Biochemistry, College of Basic Medical SciencesDalian Medical UniversityDalianLiaoningChina
| | - Ming‐Zhong Sun
- Department of Biotechnology & Liaoning Key Laboratory of Cancer Stem Cell Research, College of Basic Medical SciencesDalian Medical UniversityDalianLiaoningChina
| | - Shuqing Liu
- Department of Biochemistry, College of Basic Medical SciencesDalian Medical UniversityDalianLiaoningChina
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4
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Penglong T, Saensuwanna A, Jantapaso H, Phuwakanjana P, Jearawiriyapaisarn N, Paiboonsukwong K, Wanichsuwan W, Srinoun K. miR-214 aggravates oxidative stress in thalassemic erythroid cells by targeting ATF4. PLoS One 2024; 19:e0300958. [PMID: 38625890 PMCID: PMC11020981 DOI: 10.1371/journal.pone.0300958] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 10/04/2023] [Accepted: 03/07/2024] [Indexed: 04/18/2024] Open
Abstract
Oxidative damage to erythroid cells plays a key role in the pathogenesis of thalassemia. The oxidative stress in thalassemia is potentiated by heme, nonheme iron, and free iron produced by the Fenton reaction, due to degradation of the unstable hemoglobin and iron overload. In addition, the levels of antioxidant enzymes and molecules are significantly decreased in erythrocytes in α- and β-thalassemia. The control of oxidative stress in red blood cells (RBCs) is known to be mediated by microRNAs (miRNAs). In erythroid cells, microR-214 (miR-214) has been reported to respond to external oxidative stress. However, the molecular mechanisms underlying this phenomenon remain unclear, especially during thalassemic erythropoiesis. In the present study, to further understand how miR-214 aggravates oxidative stress in thalassemia erythroid cells, we investigated the molecular mechanism of miR-214 and its regulation of the oxidative status in thalassemia erythrocytes. We have reported a biphasic expression of miR-214 in β- and α-thalassemia. In the present study the effect of miR-214 expression was investigated by using miR -inhibitor and -mimic transfection in erythroid cell lines induced by hemin. Our study showed a biphasic expression of miR-214 in β- and α-thalassemia. Subsequently, we examined the effect of miR-214 on erythroid differentiation in thalassemia. Our study reveals the loss-of-function of miR-214 during translational activation of activating transcription factor 4 mRNA, leading to decreased reactive oxygen species levels and increased glutathione levels in thalassemia erythroid cell. Our results suggest that the expression of activating transcription factor 4 regulated by miR-214 is important for oxidative stress modulation in thalassemic erythroid cells. Our findings can help to better understand the molecular mechanism of miRNA and transcription factors in regulation of oxidative status in erythroid cells, particularly in thalassemia, and could be useful for managing and relieving severe anemia symptoms in patients in the future.
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Affiliation(s)
- Tipparat Penglong
- Department of Pathology, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Apisara Saensuwanna
- Faculty of Medical Technology, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Husanai Jantapaso
- Faculty of Medical Technology, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Pongpon Phuwakanjana
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Natee Jearawiriyapaisarn
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Kittiphong Paiboonsukwong
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Worrawit Wanichsuwan
- Medical Science Research and Innovation Institute, Research and Development Office, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Kanitta Srinoun
- Faculty of Medical Technology, Prince of Songkla University, Hat Yai, Songkhla, Thailand
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5
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Palani CD, Zhu X, Alagar M, Attucks OC, Pace BS. Bach1 inhibitor HPP-D mediates γ-globin gene activation in sickle erythroid progenitors. Blood Cells Mol Dis 2024; 104:102792. [PMID: 37633023 DOI: 10.1016/j.bcmd.2023.102792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 07/14/2023] [Accepted: 08/15/2023] [Indexed: 08/28/2023]
Abstract
Sickle cell disease (SCD) is the most common β-hemoglobinopathy caused by various mutations in the adult β-globin gene resulting in sickle hemoglobin production, chronic hemolytic anemia, pain, and progressive organ damage. The best therapeutic strategies to manage the clinical symptoms of SCD is the induction of fetal hemoglobin (HbF) using chemical agents. At present, among the Food and Drug Administration-approved drugs to treat SCD, hydroxyurea is the only one proven to induce HbF protein synthesis, however, it is not effective in all people. Therefore, we evaluated the ability of the novel Bach1 inhibitor, HPP-D to induce HbF in KU812 cells and primary sickle erythroid progenitors. HPP-D increased HbF and decreased Bach1 protein levels in both cell types. Furthermore, chromatin immunoprecipitation assay showed reduced Bach1 and increased NRF2 binding to the γ-globin promoter antioxidant response elements. We also observed increased levels of the active histone marks H3K4Me1 and H3K4Me3 supporting an open chromatin configuration. In primary sickle erythroid progenitors, HPP-D increased γ-globin transcription and HbF positive cells and reduced sickled erythroid progenitors under hypoxia conditions. Collectively, our data demonstrate that HPP-D induces γ-globin gene transcription through Bach1 inhibition and enhanced NRF2 binding in the γ-globin promoter antioxidant response elements.
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Affiliation(s)
- Chithra D Palani
- Division of Hematology/Oncology, Department of Pediatrics, Augusta University, Augusta, GA 30912, USA; Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA
| | - Xingguo Zhu
- Division of Hematology/Oncology, Department of Pediatrics, Augusta University, Augusta, GA 30912, USA; Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA
| | - Manickam Alagar
- Division of Hematology/Oncology, Department of Pediatrics, Augusta University, Augusta, GA 30912, USA; Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA
| | | | - Betty S Pace
- Division of Hematology/Oncology, Department of Pediatrics, Augusta University, Augusta, GA 30912, USA; Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA.
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6
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Zurlo M, Gasparello J, Verona M, Papi C, Cosenza LC, Finotti A, Marzaro G, Gambari R. The anti-SARS-CoV-2 BNT162b2 vaccine suppresses mithramycin-induced erythroid differentiation and expression of embryo-fetal globin genes in human erythroleukemia K562 cells. Exp Cell Res 2023; 433:113853. [PMID: 37944576 DOI: 10.1016/j.yexcr.2023.113853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/04/2023] [Accepted: 11/05/2023] [Indexed: 11/12/2023]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is causative of the ongoing coronavirus disease 2019 (COVID-19) pandemic. The SARS-CoV-2 Spike protein (S-protein) plays an important role in the early phase of SARS-CoV-2 infection through efficient interaction with ACE2. The S-protein is produced by RNA-based COVID-19 vaccines, that were fundamental for the reduction of the viral spread within the population and the clinical severity of COVID-19. However, the S-protein has been hypothesized to be responsible for damaging cells of several tissues and for some important side effects of RNA-based COVID-19 vaccines. Considering the impact of COVID-19 and SARS-CoV-2 infection on the hematopoietic system, the aim of this study was to verify the effect of the BNT162b2 vaccine on erythroid differentiation of the human K562 cell line, that has been in the past intensively studied as a model system mimicking some steps of erythropoiesis. In this context, we focused on hemoglobin production and induced expression of embryo-fetal globin genes, that are among the most important features of K562 erythroid differentiation. We found that the BNT162b2 vaccine suppresses mithramycin-induced erythroid differentiation of K562 cells. Reverse-transcription-qPCR and Western blotting assays demonstrated that suppression of erythroid differentiation was associated with sharp inhibition of the expression of α-globin and γ-globin mRNA accumulation. Inhibition of accumulation of ζ-globin and ε-globin mRNAs was also observed. In addition, we provide in silico studies suggesting a direct interaction between SARS-CoV-2 Spike protein and Hb Portland, that is the major hemoglobin produced by K562 cells. This study thus provides information suggesting the need of great attention on possible alteration of hematopoietic parameters following SARS-CoV-2 infection and/or COVID-19 vaccination.
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Affiliation(s)
- Matteo Zurlo
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, University of Ferrara, 44121 Ferrara, Italy.
| | - Jessica Gasparello
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, University of Ferrara, 44121 Ferrara, Italy
| | - Marco Verona
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
| | - Chiara Papi
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, University of Ferrara, 44121 Ferrara, Italy
| | - Lucia Carmela Cosenza
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, University of Ferrara, 44121 Ferrara, Italy
| | - Alessia Finotti
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, University of Ferrara, 44121 Ferrara, Italy; Center 'Chiara Gemmo and Elio Zago' for the Research on Thalassemia, University of Ferrara, 44121 Ferrara, Italy
| | - Giovanni Marzaro
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
| | - Roberto Gambari
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, University of Ferrara, 44121 Ferrara, Italy; Center 'Chiara Gemmo and Elio Zago' for the Research on Thalassemia, University of Ferrara, 44121 Ferrara, Italy.
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7
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Wu PC, Lee YQ, Möller M, Storry JR, Olsson ML. Elucidation of the low-expressing erythroid CR1 phenotype by bioinformatic mining of the GATA1-driven blood-group regulome. Nat Commun 2023; 14:5001. [PMID: 37591894 PMCID: PMC10435571 DOI: 10.1038/s41467-023-40708-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 08/08/2023] [Indexed: 08/19/2023] Open
Abstract
Genetic determinants underlying most human blood groups are now clarified but variation in expression levels remains largely unexplored. By developing a bioinformatics pipeline analyzing GATA1/Chromatin immunoprecipitation followed by sequencing (ChIP-seq) datasets, we identify 193 potential regulatory sites in 33 blood-group genes. As proof-of-concept, we aimed to delineate the low-expressing complement receptor 1 (CR1) Helgeson phenotype on erythrocytes, which is correlated with several diseases and protects against severe malaria. We demonstrate that two candidate CR1 enhancer motifs in intron 4 bind GATA1 and drive transcription. Both are functionally abolished by naturally-occurring SNVs. Erythrocyte CR1-mRNA and CR1 levels correlate dose-dependently with genotype of one SNV (rs11117991) in two healthy donor cohorts. Haplotype analysis of rs11117991 with previously proposed markers for Helgeson shows high linkage disequilibrium in Europeans but explains the poor prediction reported for Africans. These data resolve the longstanding debate on the genetic basis of inherited low CR1 and form a systematic starting point to investigate the blood group regulome.
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Affiliation(s)
- Ping Chun Wu
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Yan Quan Lee
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Mattias Möller
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
- Department of Clinical Genetics and Pathology, Office for Medical Services, Region Skåne, Lund, Sweden
| | - Jill R Storry
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
- Department of Clinical Immunology and Transfusion Medicine, Office for Medical Services, Region Skåne, Lund, Sweden
| | - Martin L Olsson
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden.
- Department of Clinical Immunology and Transfusion Medicine, Office for Medical Services, Region Skåne, Lund, Sweden.
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8
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Omata K, Nomura I, Hirata A, Yonezuka Y, Muto H, Kuriki R, Jimbo K, Ogasa K, Kato T. Isolation and evaluation of erythroid progenitors in the livers of larval, froglet, and adult Xenopus tropicalis. Biol Open 2023; 12:bio059862. [PMID: 37421150 PMCID: PMC10399205 DOI: 10.1242/bio.059862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 06/28/2023] [Indexed: 07/09/2023] Open
Abstract
Xenopus liver maintains erythropoietic activity from the larval to the adult stage. During metamorphosis, thyroid hormone mediates apoptosis of larval-type erythroid progenitors and proliferation of adult-type erythroid progenitors, and a globin switch occurs during this time. In addition, the whole-body mass and the liver also change; however, whether there is a change in the absolute number of erythroid progenitors is unclear. To isolate and evaluate erythroid progenitors in the Xenopus liver, we developed monoclonal ER9 antibodies against the erythropoietin receptor (EPOR) of Xenopus. ER9 recognized erythrocytes, but not white blood cells or thrombocytes. The specificity of ER9 for EPOR manifested as its inhibitory effect on the proliferation of a Xenopus EPOR-expressing cell line. Furthermore, ER9 recognition was consistent with epor gene expression. ER9 staining with Acridine orange (AO) allowed erythrocyte fractionation through fluorescence-activated cell sorting. The ER9+ and AO-red (AOr)high fractions were highly enriched in erythroid progenitors and primarily localized to the liver. The method developed using ER9 and AO was also applied to larvae and froglets with different progenitor populations from adult frogs. The liver to body weight and the number of ER9+ AOrhigh cells per unit body weight were significantly higher in adults than in larvae and froglets, and the number of ER9+ AOrhigh cells per unit liver weight was the highest in froglets. Collectively, our results show increased erythropoiesis in the froglet liver and demonstrate growth-dependent changes in erythropoiesis patterns in specific organs of Xenopus.
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Affiliation(s)
- Kazuki Omata
- Department of Biology, School of Education, Waseda University, 2-2 Wakamatsu, Shinjuku, Tokyo 162-8480, Japan
- Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu, Shinjuku, Tokyo 162-8480, Japan
| | - Ikki Nomura
- Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu, Shinjuku, Tokyo 162-8480, Japan
| | - Akito Hirata
- Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu, Shinjuku, Tokyo 162-8480, Japan
| | - Yuka Yonezuka
- Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu, Shinjuku, Tokyo 162-8480, Japan
| | - Hiroshi Muto
- Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu, Shinjuku, Tokyo 162-8480, Japan
| | - Ryo Kuriki
- Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu, Shinjuku, Tokyo 162-8480, Japan
| | - Kirin Jimbo
- Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu, Shinjuku, Tokyo 162-8480, Japan
| | - Koujin Ogasa
- Department of Biology, School of Education, Waseda University, 2-2 Wakamatsu, Shinjuku, Tokyo 162-8480, Japan
| | - Takashi Kato
- Department of Biology, School of Education, Waseda University, 2-2 Wakamatsu, Shinjuku, Tokyo 162-8480, Japan
- Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu, Shinjuku, Tokyo 162-8480, Japan
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9
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Wang Z, Wang P, Zhang J, Gong H, Zhang X, Song J, Nie L, Peng Y, Li Y, Peng H, Cui Y, Li H, Hu B, Mi J, Liang L, Liu H, Zhang J, Ye M, Yazdanbakhsh K, Mohandas N, An X, Han X, Liu J. The novel GATA1-interacting protein HES6 is an essential transcriptional cofactor for human erythropoiesis. Nucleic Acids Res 2023; 51:4774-4790. [PMID: 36929421 PMCID: PMC10250228 DOI: 10.1093/nar/gkad167] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 10/08/2022] [Revised: 02/21/2023] [Accepted: 03/15/2023] [Indexed: 03/18/2023] Open
Abstract
Normal erythropoiesis requires the precise regulation of gene expression patterns, and transcription cofactors play a vital role in this process. Deregulation of cofactors has emerged as a key mechanism contributing to erythroid disorders. Through gene expression profiling, we found HES6 as an abundant cofactor expressed at gene level during human erythropoiesis. HES6 physically interacted with GATA1 and influenced the interaction of GATA1 with FOG1. Knockdown of HES6 impaired human erythropoiesis by decreasing GATA1 expression. Chromatin immunoprecipitation and RNA sequencing revealed a rich set of HES6- and GATA1-co-regulated genes involved in erythroid-related pathways. We also discovered a positive feedback loop composed of HES6, GATA1 and STAT1 in the regulation of erythropoiesis. Notably, erythropoietin (EPO) stimulation led to up-regulation of these loop components. Increased expression levels of loop components were observed in CD34+ cells of polycythemia vera patients. Interference by either HES6 knockdown or inhibition of STAT1 activity suppressed proliferation of erythroid cells with the JAK2V617F mutation. We further explored the impact of HES6 on polycythemia vera phenotypes in mice. The identification of the HES6-GATA1 regulatory loop and its regulation by EPO provides novel insights into human erythropoiesis regulated by EPO/EPOR and a potential therapeutic target for the management of polycythemia vera.
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Affiliation(s)
- Zi Wang
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Pan Wang
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Jieying Zhang
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
- Basic Medical Institute; Hongqiao International Institute of Medicine, Tongren Hospital; Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Han Gong
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Xuchao Zhang
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Jianhui Song
- Xiangya Hospital, Central South University, Changsha 410008, China
| | - Ling Nie
- Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yuanliang Peng
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Yanan Li
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Hongling Peng
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Yajuan Cui
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Heng Li
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Bin Hu
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Jun Mi
- Basic Medical Institute; Hongqiao International Institute of Medicine, Tongren Hospital; Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Long Liang
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Hong Liu
- Xiangya Hospital, Central South University, Changsha 410008, China
| | - Ji Zhang
- Department of Clinical Laboratory, the First Affiliated Hospital, University of South China, Hengyang 421001, China
| | - Mao Ye
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics; College of Biology; College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | | | - Narla Mohandas
- Red Cell Physiology Laboratory, NY Blood Center, NY 10065, USA
| | - Xiuli An
- Laboratory of Membrane Biology, NY Blood Center, NY 10065, USA
| | - Xu Han
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
| | - Jing Liu
- Department of Hematology, The Second Xiangya Hospital of Central South University; Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha 410011, China
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10
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Chumchuen S, Sripichai O, Jearawiriyapaisarn N, Fucharoen S, Peerapittayamongkol C. Induction of fetal hemoglobin: Lentiviral shRNA knockdown of HBS1L in β0-thalassemia/HbE erythroid cells. PLoS One 2023; 18:e0281059. [PMID: 36888630 PMCID: PMC9994754 DOI: 10.1371/journal.pone.0281059] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 11/10/2021] [Accepted: 01/16/2023] [Indexed: 03/09/2023] Open
Abstract
Imbalanced globin chain output contributes to thalassemia pathophysiology. Hence, induction of fetal hemoglobin in β-thalassemia and other β-hemoglobinopathies are of continuing interest for therapeutic approaches. Genome-wide association studies have identified three common genetic loci: namely β-globin (HBB), an intergenic region between MYB and HBS1L, and BCL11A underlying quantitative fetal hemoglobin production. Here, we report that knockdown of HBS1L (all known variants) using shRNA in early erythroblast obtained from β0-thalassemia/HbE patients triggers an upregulation of γ-globin mRNA 1.69 folds. There is modest perturbation of red cell differentiation assessed by flow cytometry and morphology studies. The levels of α- and β-globin mRNAs are relatively unaltered. Knockdown of HBS1L also increases the percentage of fetal hemoglobin around 16.7 folds when compared to non-targeting shRNA. Targeting HBS1L is attractive because of the potent induction of fetal hemoglobin and the modest effect on cell differentiation.
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Affiliation(s)
- Sukanya Chumchuen
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Orapan Sripichai
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Natee Jearawiriyapaisarn
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Suthat Fucharoen
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Chayanon Peerapittayamongkol
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- * E-mail: ,
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11
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Mehta S, Buyanbat A, Kai Y, Karayel O, Goldman SR, Seruggia D, Zhang K, Fujiwara Y, Donovan KA, Zhu Q, Yang H, Nabet B, Gray NS, Mann M, Fischer ES, Adelman K, Orkin SH. Temporal resolution of gene derepression and proteome changes upon PROTAC-mediated degradation of BCL11A protein in erythroid cells. Cell Chem Biol 2022; 29:1273-1287.e8. [PMID: 35839780 PMCID: PMC9391307 DOI: 10.1016/j.chembiol.2022.06.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 04/01/2022] [Accepted: 06/20/2022] [Indexed: 11/21/2022]
Abstract
Reactivation of fetal hemoglobin expression by the downregulation of BCL11A is a promising treatment for β-hemoglobinopathies. A detailed understanding of BCL11A-mediated repression of γ-globin gene (HBG1/2) transcription is lacking, as studies to date used perturbations by shRNA or CRISPR-Cas9 gene editing. We leveraged the dTAG PROTAC degradation platform to acutely deplete BCL11A protein in erythroid cells and examined consequences by nascent transcriptomics, proteomics, chromatin accessibility, and histone profiling. Among 31 genes repressed by BCL11A, HBG1/2 and HBZ show the most abundant and progressive changes in transcription and chromatin accessibility upon BCL11A loss. Transcriptional changes at HBG1/2 were detected in <2 h. Robust HBG1/2 reactivation upon acute BCL11A depletion occurred without the loss of promoter 5-methylcytosine (5mC). Using targeted protein degradation, we establish a hierarchy of gene reactivation at BCL11A targets, in which nascent transcription is followed by increased chromatin accessibility, and both are uncoupled from promoter DNA methylation at the HBG1/2 loci.
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Affiliation(s)
- Stuti Mehta
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, MA 02115, USA
| | - Altantsetseg Buyanbat
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, MA 02115, USA
| | - Yan Kai
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, MA 02115, USA
| | - Ozge Karayel
- Department of Proteomics and Signal Transduction, Max-Planck Institute of Biochemistry, 82152 Planegg, Germany
| | - Seth Raphael Goldman
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Davide Seruggia
- St. Anna Children's Cancer Research Institute (CCRI), Vienna, Austria; CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Kevin Zhang
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, MA 02115, USA
| | - Yuko Fujiwara
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, MA 02115, USA
| | - Katherine A Donovan
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Qian Zhu
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, MA 02115, USA
| | - Huan Yang
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, MA 02115, USA
| | - Behnam Nabet
- Human Biology Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Nathanael S Gray
- Department of Chemical and Systems Biology, CHEM-H and SCI, Stanford Medical School, Stanford University, Stanford, CA, USA
| | - Matthias Mann
- Department of Proteomics and Signal Transduction, Max-Planck Institute of Biochemistry, 82152 Planegg, Germany
| | - Eric S Fischer
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Karen Adelman
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Stuart H Orkin
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, MA 02115, USA; Howard Hughes Medical Institute and Harvard Medical School, Boston, MA 02115, USA.
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12
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Khamphikham P, Wongborisuth C, Pornprasert S, Tantiworawit A, Tangprasittipap A, Songdej D, Hongeng S. IOX1 Fails to Reduce α-Globin and Mediates γ-Globin Silencing in Adult β 0-Thalassemia/Hemoglobin E Erythroid Progenitor Cells. Exp Hematol 2022; 112-113:9-14.e7. [PMID: 35839944 DOI: 10.1016/j.exphem.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 07/03/2022] [Accepted: 07/05/2022] [Indexed: 11/18/2022]
Abstract
The accumulation of unbound α-globin chains in red blood cells is a crucial pathophysiology of β-thalassemia. IOX1 (5-carboxy-8-hydroxyquinoline) is a broad-spectrum 2-oxoglutarate (2OG)-dependent oxygenase inhibitor that can reduce α-globin mRNA expression in human cord blood erythroid progenitor cells. Therefore, IOX1 has been proposed as a potential compound for β-thalassemia treatment through the decrease inα-globin chain synthesis. However, there is no empirical evidence regarding the consequences of IOX1 in β-thalassemia. In this study, the therapeutic effects of IOX1 were investigated in β0-thalassemia/hemoglobin E (HbE) erythroid progenitor cells during in vitro erythropoiesis. The results indicated that IOX1 had no impact on α-globin gene expression, but it led instead to significant decreases in γ-globin and fetal hemoglobin (HbF, α2γ2) production without affecting well-known globin regulators: KLF1, BCL11A, LRF, and GATA1. In addition, differential mRNA expression of several genes in the hypoxia response pathway revealed the induction of EGLN1, the PHD2-encoding gene, as a result of IOX1 treatment. These findings suggested that IOX1 fails to lower α-globin gene expression; on the contrary, it mediates γ-globin and HbF silencing in β0-thalassemia/HbE erythroid progenitor cells. Because of the negative correlation of EGLN1 and γ-globin gene expression after IOX1 treatment, repurposing IOX1 to study the hypoxia response pathway and γ-globin regulation may provide beneficial information for β-thalassemia.
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Affiliation(s)
- Pinyaphat Khamphikham
- Division of Clinical Microscopy, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand.
| | - Chokdee Wongborisuth
- Research Center, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Sakorn Pornprasert
- Division of Clinical Microscopy, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Adisak Tantiworawit
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Amornrat Tangprasittipap
- Research Center, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Duantida Songdej
- Division of Hematology and Oncology, Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Suradej Hongeng
- Division of Hematology and Oncology, Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
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13
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Bircher C, Bieri J, Assaraf R, Leisi R, Ros C. A Conserved Receptor-Binding Domain in the VP1u of Primate Erythroparvoviruses Determines the Marked Tropism for Erythroid Cells. Viruses 2022; 14:v14020420. [PMID: 35216013 PMCID: PMC8879732 DOI: 10.3390/v14020420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/06/2022] [Accepted: 02/15/2022] [Indexed: 01/27/2023] Open
Abstract
Parvovirus B19 (B19V) is a human pathogen with a marked tropism for erythroid progenitor cells (EPCs). The N-terminal of the VP1 unique region (VP1u) contains a receptor-binding domain (RBD), which mediates virus uptake through interaction with an as-yet-unknown receptor (VP1uR). Considering the central role of VP1uR in the virus tropism, we sought to investigate its expression profile in multiple cell types. To this end, we established a PP7 bacteriophage-VP1u bioconjugate, sharing the size and VP1u composition of native B19V capsids. The suitability of the PP7-VP1u construct as a specific and sensitive VP1uR expression marker was validated in competition assays with B19V and recombinant VP1u. VP1uR expression was exclusively detected in erythroid cells and cells reprogrammed towards the erythroid lineage. Sequence alignment and in silico protein structure prediction of the N-terminal of VP1u (N-VP1u) from B19V and other primate erythroparvoviruses (simian, rhesus, and pig-tailed) revealed a similar structure characterized by a fold of three or four α-helices. Functional studies with simian parvovirus confirmed the presence of a conserved RBD in the N-VP1u, mediating virus internalization into human erythroid cells. In summary, this study confirms the exclusive association of VP1uR expression with cells of the erythroid lineage. The presence of an analogous RBD in the VP1u from non-human primate erythroparvoviruses emphasizes their parallel evolutionary trait and zoonotic potential.
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Affiliation(s)
- Cornelia Bircher
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland; (C.B.); (J.B.); (R.A.); (R.L.)
| | - Jan Bieri
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland; (C.B.); (J.B.); (R.A.); (R.L.)
| | - Ruben Assaraf
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland; (C.B.); (J.B.); (R.A.); (R.L.)
| | - Remo Leisi
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland; (C.B.); (J.B.); (R.A.); (R.L.)
- CSL Behring AG, 3000 Bern, Switzerland
| | - Carlos Ros
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland; (C.B.); (J.B.); (R.A.); (R.L.)
- Correspondence:
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14
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Noel JG, Ramser SW, Pitstick L, Bonamer JP, Mackenzie B, Seu KG, Kalfa TA, Cancelas JA, Gardner JC. M-CSF supports medullary erythropoiesis and erythroid iron demand following burn injury through its activity on homeostatic iron recycling. Sci Rep 2022; 12:1235. [PMID: 35075211 PMCID: PMC8786861 DOI: 10.1038/s41598-022-05360-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 01/11/2022] [Indexed: 11/09/2022] Open
Abstract
M-CSF receptor signaling supports the development and survival of mononuclear phagocytes and is thought to play a role in post burn anemia by promoting myeloid lineage bias. We found M-CSF secretion was increased in burn patients and a murine model of post burn ACI, so we neutralized M-CSF in ACI mice to determine if erythropoiesis was improved. Instead, M-CSF blockade further impaired erythropoiesis and erythroid cells access to iron. M-CSF blockade enhanced inflammatory cytokine secretion, further increased systemic neutrophil counts, and led to tissue iron sequestration that was dependent, in part, on augmented IL-6 secretion which induced hepcidin. Deleterious effects of post burn M-CSF blockade were associated with arrest of an iron recycling gene expression signature in the liver and spleen that included Spi-C transcription factor and heme oxygenase-1, which promote heme metabolism and confer a non-inflammatory tone in macrophages. Hepatic induction of these factors in ACI mice was consistent with a recovery of ferroportin gene expression and reflected an M-CSF dependent expansion and differentiation of Spi-C+ monocytes into Kupffer cells. Together, this data indicates M-CSF secretion supports a homeostatic iron recycling program that plays a key role in the maintenance of erythroid cells access to iron following burn injury.
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Affiliation(s)
- John G Noel
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, Cincinnati, 45267, USA
| | - Seth W Ramser
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, Cincinnati, 45267, USA
| | - Lori Pitstick
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, Cincinnati, 45267, USA
| | - John P Bonamer
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, 45267, USA
| | - Bryan Mackenzie
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, 45267, USA
| | - Katie G Seu
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, 45229, USA
| | - Theodosia A Kalfa
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, 45229, USA
| | - Jose A Cancelas
- Divisions of Pathology and Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, 45229, USA
| | - Jason C Gardner
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, Cincinnati, 45267, USA.
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15
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Papasavva PL, Patsali P, Loucari CC, Kurita R, Nakamura Y, Kleanthous M, Lederer CW. CRISPR Editing Enables Consequential Tag-Activated MicroRNA-Mediated Endogene Deactivation. Int J Mol Sci 2022; 23:1082. [PMID: 35163006 PMCID: PMC8834719 DOI: 10.3390/ijms23031082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/09/2022] [Accepted: 01/12/2022] [Indexed: 02/01/2023] Open
Abstract
Molecular therapies and functional studies greatly benefit from spatial and temporal precision of genetic intervention. We therefore conceived and explored tag-activated microRNA (miRNA)-mediated endogene deactivation (TAMED) as a research tool and potential lineage-specific therapy. For proof of principle, we aimed to deactivate γ-globin repressor BCL11A in erythroid cells by tagging the 3' untranslated region (UTR) of BCL11A with miRNA recognition sites (MRSs) for the abundant erythromiR miR-451a. To this end, we employed nucleofection of CRISPR/Cas9 ribonucleoprotein (RNP) particles alongside double- or single-stranded oligodeoxynucleotides for, respectively, non-homologous-end-joining (NHEJ)- or homology-directed-repair (HDR)-mediated MRS insertion. NHEJ-based tagging was imprecise and inefficient (≤6%) and uniformly produced knock-in- and indel-containing MRS tags, whereas HDR-based tagging was more efficient (≤18%), but toxic for longer donors encoding concatenated and thus potentially more efficient MRS tags. Isolation of clones for robust HEK293T cells tagged with a homozygous quadruple MRS resulted in 25% spontaneous reduction in BCL11A and up to 36% reduction after transfection with an miR-451a mimic. Isolation of clones for human umbilical cord blood-derived erythroid progenitor-2 (HUDEP-2) cells tagged with single or double MRS allowed detection of albeit weak γ-globin induction. Our study demonstrates suitability of TAMED for physiologically relevant modulation of gene expression and its unsuitability for therapeutic application in its current form.
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Affiliation(s)
- Panayiota L. Papasavva
- Department of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus; (P.L.P.); (P.P.); (C.C.L.); (M.K.)
- Cyprus School of Molecular Medicine, Nicosia 2371, Cyprus
| | - Petros Patsali
- Department of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus; (P.L.P.); (P.P.); (C.C.L.); (M.K.)
- Cyprus School of Molecular Medicine, Nicosia 2371, Cyprus
| | - Constantinos C. Loucari
- Department of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus; (P.L.P.); (P.P.); (C.C.L.); (M.K.)
- Cyprus School of Molecular Medicine, Nicosia 2371, Cyprus
| | - Ryo Kurita
- Research and Development Department, Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Koto-ku, Tokyo 135-8521, Japan;
| | - Yukio Nakamura
- Cell Engineering Division, RIKEN BioResource Research Center, Tsukuba 305-0074, Japan;
| | - Marina Kleanthous
- Department of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus; (P.L.P.); (P.P.); (C.C.L.); (M.K.)
- Cyprus School of Molecular Medicine, Nicosia 2371, Cyprus
| | - Carsten W. Lederer
- Department of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus; (P.L.P.); (P.P.); (C.C.L.); (M.K.)
- Cyprus School of Molecular Medicine, Nicosia 2371, Cyprus
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16
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Biernatowska A, Wójtowicz K, Trombik T, Sikorski AF, Czogalla A. MPP1 Determines the Mobility of Flotillins and Controls the Confinement of Raft-Associated Molecules. Cells 2022; 11:cells11030311. [PMID: 35159121 PMCID: PMC8834348 DOI: 10.3390/cells11030311] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/10/2022] [Accepted: 01/12/2022] [Indexed: 01/02/2023] Open
Abstract
MPP1 (membrane palmitoylated protein 1) belongs to the MAGUK (membrane-associated guanylate kinase homologs) scaffolding protein family. These proteins organize molecules into complexes, thereby maintaining the structural heterogeneity of the plasma membrane (PM). Our previous results indicated that direct, high-affinity interactions between MPP1 and flotillins (raft marker proteins) display dominant PM-modulating capacity in erythroid cells. In this study, with high-resolution structured illuminated imaging, we investigated how these complexes are organized within erythroid cells on the nanometer scale. Furthermore, using other spectroscopic techniques, namely fluorescence recovery after photobleaching (FRAP) and spot-variation fluorescence correlation spectroscopy (svFCS), we revealed that MPP1 acts as a key raft-capturing molecule, regulating temporal immobilization of flotillin-based nanoclusters, and controls local concentration and confinement of sphingomyelin and Thy-1 in raft nanodomains. Our data enabled us to uncover molecular principles governing the key involvement of MPP1-flotillin complexes in the dynamic nanoscale organization of PM of erythroid cells.
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Affiliation(s)
- Agnieszka Biernatowska
- Department of Cytobiochemistry, Faculty of Biotechnology, University of Wrocław, ul. F. Joliot-Curie 14a, 50-383 Wrocław, Poland
- Correspondence: (A.B.); (A.C.); Tel.: +48-71-375-6417 (A.B.); +48-71-375-6356 (A.C.)
| | - Karolina Wójtowicz
- Department of Biotransformation, Faculty of Biotechnology, University of Wrocław, ul. F. Joliot-Curie 14a, 50-383 Wrocław, Poland;
| | - Tomasz Trombik
- Department of Biophysics, Faculty of Biotechnology, University of Wrocław, ul. F. Joliot-Curie 14a, 50-383 Wrocław, Poland;
| | - Aleksander F. Sikorski
- Research and Development Center, Regional Specialist Hospital, Kamieńskiego 73a, 51-154 Wrocław, Poland;
| | - Aleksander Czogalla
- Department of Cytobiochemistry, Faculty of Biotechnology, University of Wrocław, ul. F. Joliot-Curie 14a, 50-383 Wrocław, Poland
- Correspondence: (A.B.); (A.C.); Tel.: +48-71-375-6417 (A.B.); +48-71-375-6356 (A.C.)
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17
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Lieu YK, Liu Z, Ali AM, Wei X, Penson A, Zhang J, An X, Rabadan R, Raza A, Manley JL, Mukherjee S. SF3B1 mutant-induced missplicing of MAP3K7 causes anemia in myelodysplastic syndromes. Proc Natl Acad Sci U S A 2022; 119:e2111703119. [PMID: 34930825 PMCID: PMC8740767 DOI: 10.1073/pnas.2111703119] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 11/10/2021] [Indexed: 12/12/2022] Open
Abstract
SF3B1 is the most frequently mutated RNA splicing factor in cancer, including in ∼25% of myelodysplastic syndromes (MDS) patients. SF3B1-mutated MDS, which is strongly associated with ringed sideroblast morphology, is characterized by ineffective erythropoiesis, leading to severe, often fatal anemia. However, functional evidence linking SF3B1 mutations to the anemia described in MDS patients harboring this genetic aberration is weak, and the underlying mechanism is completely unknown. Using isogenic SF3B1 WT and mutant cell lines, normal human CD34 cells, and MDS patient cells, we define a previously unrecognized role of the kinase MAP3K7, encoded by a known mutant SF3B1-targeted transcript, in controlling proper terminal erythroid differentiation, and show how MAP3K7 missplicing leads to the anemia characteristic of SF3B1-mutated MDS, although not to ringed sideroblast formation. We found that p38 MAPK is deactivated in SF3B1 mutant isogenic and patient cells and that MAP3K7 is an upstream positive effector of p38 MAPK. We demonstrate that disruption of this MAP3K7-p38 MAPK pathway leads to premature down-regulation of GATA1, a master regulator of erythroid differentiation, and that this is sufficient to trigger accelerated differentiation, erythroid hyperplasia, and ultimately apoptosis. Our findings thus define the mechanism leading to the severe anemia found in MDS patients harboring SF3B1 mutations.
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Affiliation(s)
- Yen K Lieu
- Department of Biological Sciences, Columbia University, New York, NY 10027;
- Irving Cancer Research Center, Columbia University, New York, NY 10032
| | - Zhaoqi Liu
- Chinese Academy of Sciences Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences 100101 Beijing, China
- Department of Systems Biology, Columbia University, New York, NY 10032
- Department of Biomedical Informatics, Columbia University, New York, NY 10032
- Program for Mathematical Genomics, Columbia University, New York, NY 10032
| | - Abdullah M Ali
- Division of Hematology and Oncology, Department of Medicine, Columbia University, New York, NY 10032
| | - Xin Wei
- Laboratory of Membrane Biology, New York Blood Center, New York, NY 10065
- Department of Anesthesiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - Alex Penson
- Department of Systems Biology, Columbia University, New York, NY 10032
- Department of Biomedical Informatics, Columbia University, New York, NY 10032
| | - Jian Zhang
- Department of Biological Sciences, Columbia University, New York, NY 10027
| | - Xiuli An
- Laboratory of Membrane Biology, New York Blood Center, New York, NY 10065
| | - Raul Rabadan
- Department of Systems Biology, Columbia University, New York, NY 10032
- Department of Biomedical Informatics, Columbia University, New York, NY 10032
- Program for Mathematical Genomics, Columbia University, New York, NY 10032
| | - Azra Raza
- Irving Cancer Research Center, Columbia University, New York, NY 10032
- Division of Hematology and Oncology, Department of Medicine, Columbia University, New York, NY 10032
| | - James L Manley
- Department of Biological Sciences, Columbia University, New York, NY 10027;
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18
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Lu Z, Huang L, Li Y, Xu Y, Zhang R, Zhou Q, Sun Q, Lu Y, Chen J, Shen Y, Li J, Zhao B. Fine-Tuning of Cholesterol Homeostasis Controls Erythroid Differentiation. Adv Sci (Weinh) 2022; 9:e2102669. [PMID: 34739188 PMCID: PMC8805577 DOI: 10.1002/advs.202102669] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 10/01/2021] [Indexed: 05/12/2023]
Abstract
Lipid metabolism is essential for stemness maintenance, self-renewal, and differentiation of stem cells, however, the regulatory function of cholesterol metabolism in erythroid differentiation is poorly studied. In the present study, a critical role for cholesterol homeostasis in terminal erythropoiesis is uncovered. The master transcriptional factor GATA1 binds to Sterol-regulatory element binding protein 2 (SREBP2) to downregulate cholesterol biosynthesis, leading to a gradual reduction in intracellular cholesterol levels. It is further shown that reduced cholesterol functions to block erythroid proliferation via the cholesterol/mTORC1/ribosome biogenesis axis, which coordinates cell cycle exit in the late stages of erythroid differentiation. The interaction of GATA1 and SREBP2 also provides a feedback loop for regulating globin expression through the transcriptional control of NFE2 by SREBP2. Importantly, it is shown that disrupting intracellular cholesterol hemostasis resulted in defect of terminal erythroid differentiation in vivo. These findings demonstrate that fine-tuning of cholesterol homeostasis emerges as a key mechanism for regulating erythropoiesis.
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Affiliation(s)
- Zhiyuan Lu
- Key Laboratory of Chemical Biology (Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Lixia Huang
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Yanxia Li
- Key Laboratory of Chemical Biology (Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Yan Xu
- Key Laboratory of Chemical Biology (Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Ruihao Zhang
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Qian Zhou
- Key Laboratory of Chemical Biology (Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Qi Sun
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Yi Lu
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Junjie Chen
- Analysis and Measurement CenterSchool of Pharmaceutical SciencesXiamen UniversityXiamenFujian361001China
| | - Yuemao Shen
- Key Laboratory of Chemical Biology (Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Jian Li
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Baobing Zhao
- Key Laboratory of Chemical Biology (Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
- Department of PharmacologySchool of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
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19
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Buks R, Dagher T, Rotordam MG, Monedero Alonso D, Cochet S, Gautier EF, Chafey P, Cassinat B, Kiladjian JJ, Becker N, Plo I, Egée S, El Nemer W. Altered Ca 2+ Homeostasis in Red Blood Cells of Polycythemia Vera Patients Following Disturbed Organelle Sorting during Terminal Erythropoiesis. Cells 2021; 11:49. [PMID: 35011611 PMCID: PMC8750512 DOI: 10.3390/cells11010049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 02/07/2023] Open
Abstract
Over 95% of Polycythemia Vera (PV) patients carry the V617F mutation in the tyrosine kinase Janus kinase 2 (JAK2), resulting in uncontrolled erythroid proliferation and a high risk of thrombosis. Using mass spectrometry, we analyzed the RBC membrane proteome and showed elevated levels of multiple Ca2+ binding proteins as well as endoplasmic-reticulum-residing proteins in PV RBC membranes compared with RBC membranes from healthy individuals. In this study, we investigated the impact of JAK2V617F on (1) calcium homeostasis and RBC ion channel activity and (2) protein expression and sorting during terminal erythroid differentiation. Our data from automated patch-clamp show modified calcium homeostasis in PV RBCs and cell lines expressing JAK2V617F, with a functional impact on the activity of the Gárdos channel that could contribute to cellular dehydration. We show that JAK2V617F could play a role in organelle retention during the enucleation step of erythroid differentiation, resulting in modified whole cell proteome in reticulocytes and RBCs in PV patients. Given the central role that calcium plays in the regulation of signaling pathways, our study opens new perspectives to exploring the relationship between JAK2V617F, calcium homeostasis, and cellular abnormalities in myeloproliferative neoplasms, including cellular interactions in the bloodstream in relation to thrombotic events.
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Affiliation(s)
- Ralfs Buks
- BIGR, UMR_S1134, Inserm, Université de Paris, F-75015 Paris, France; (R.B.); (S.C.)
- Institut National de la Transfusion Sanguine, F-75015 Paris, France
- Laboratoire d’Excellence GR-Ex, F-75015 Paris, France; (T.D.); (D.M.A.); (E.-F.G.); (B.C.); (J.-J.K.); (I.P.); (S.E.)
| | - Tracy Dagher
- Laboratoire d’Excellence GR-Ex, F-75015 Paris, France; (T.D.); (D.M.A.); (E.-F.G.); (B.C.); (J.-J.K.); (I.P.); (S.E.)
- U1287, Inserm, Université Paris-Saclay, Gustave Roussy, F-94800 Villejuif, France
| | - Maria Giustina Rotordam
- Nanion Technologies GmbH, 80339 Munich, Germany; (M.G.R.); (N.B.)
- Theoretical Medicine and Biosciences, Medical Faculty, Saarland University, Kirrbergerstr. 100, DE-66424 Homburg, Germany
| | - David Monedero Alonso
- Laboratoire d’Excellence GR-Ex, F-75015 Paris, France; (T.D.); (D.M.A.); (E.-F.G.); (B.C.); (J.-J.K.); (I.P.); (S.E.)
- Sorbonne Université, CNRS, UMR LBI2M, Station Biologique de Roscoff SBR, F-29680 Roscoff, France
| | - Sylvie Cochet
- BIGR, UMR_S1134, Inserm, Université de Paris, F-75015 Paris, France; (R.B.); (S.C.)
- Institut National de la Transfusion Sanguine, F-75015 Paris, France
- Laboratoire d’Excellence GR-Ex, F-75015 Paris, France; (T.D.); (D.M.A.); (E.-F.G.); (B.C.); (J.-J.K.); (I.P.); (S.E.)
| | - Emilie-Fleur Gautier
- Laboratoire d’Excellence GR-Ex, F-75015 Paris, France; (T.D.); (D.M.A.); (E.-F.G.); (B.C.); (J.-J.K.); (I.P.); (S.E.)
- Institut Imagine-INSERM U1163, Necker Hospital, Université de Paris, F-75015 Paris, France
- Proteomics Platform 3P5, Université de Paris, Institut Cochin, INSERM, U1016, CNRS, UMR8104 Paris, France;
| | - Philippe Chafey
- Proteomics Platform 3P5, Université de Paris, Institut Cochin, INSERM, U1016, CNRS, UMR8104 Paris, France;
| | - Bruno Cassinat
- Laboratoire d’Excellence GR-Ex, F-75015 Paris, France; (T.D.); (D.M.A.); (E.-F.G.); (B.C.); (J.-J.K.); (I.P.); (S.E.)
- IRSL, U1131, INSERM, Université de Paris, F-75010 Paris, France
- Hôpital Saint-Louis, Laboratoire de Biologie Cellulaire, AP-HP, F-75010 Paris, France
| | - Jean-Jacques Kiladjian
- Laboratoire d’Excellence GR-Ex, F-75015 Paris, France; (T.D.); (D.M.A.); (E.-F.G.); (B.C.); (J.-J.K.); (I.P.); (S.E.)
- IRSL, U1131, INSERM, Université de Paris, F-75010 Paris, France
- Centre d’Investigations Cliniques, Hôpital Saint-Louis, Université de Paris, F-75010 Paris, France
| | - Nadine Becker
- Nanion Technologies GmbH, 80339 Munich, Germany; (M.G.R.); (N.B.)
| | - Isabelle Plo
- Laboratoire d’Excellence GR-Ex, F-75015 Paris, France; (T.D.); (D.M.A.); (E.-F.G.); (B.C.); (J.-J.K.); (I.P.); (S.E.)
- U1287, Inserm, Université Paris-Saclay, Gustave Roussy, F-94800 Villejuif, France
| | - Stéphane Egée
- Laboratoire d’Excellence GR-Ex, F-75015 Paris, France; (T.D.); (D.M.A.); (E.-F.G.); (B.C.); (J.-J.K.); (I.P.); (S.E.)
- Sorbonne Université, CNRS, UMR LBI2M, Station Biologique de Roscoff SBR, F-29680 Roscoff, France
| | - Wassim El Nemer
- BIGR, UMR_S1134, Inserm, Université de Paris, F-75015 Paris, France; (R.B.); (S.C.)
- Institut National de la Transfusion Sanguine, F-75015 Paris, France
- Laboratoire d’Excellence GR-Ex, F-75015 Paris, France; (T.D.); (D.M.A.); (E.-F.G.); (B.C.); (J.-J.K.); (I.P.); (S.E.)
- Etablissement Français du Sang PACA-Corse, F-13005Marseille, France
- Aix Marseille Univ, EFS, CNRS, ADES, “Biologie des Groupes Sanguins”, F-13005 Marseille, France
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20
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Neo WH, Meng Y, Rodriguez-Meira A, Fadlullah MZH, Booth CAG, Azzoni E, Thongjuea S, de Bruijn MFTR, Jacobsen SEW, Mead AJ, Lacaud G. Ezh2 is essential for the generation of functional yolk sac derived erythro-myeloid progenitors. Nat Commun 2021; 12:7019. [PMID: 34857757 PMCID: PMC8640066 DOI: 10.1038/s41467-021-27140-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 10/27/2021] [Indexed: 01/01/2023] Open
Abstract
Yolk sac (YS) hematopoiesis is critical for the survival of the embryo and a major source of tissue-resident macrophages that persist into adulthood. Yet, the transcriptional and epigenetic regulation of YS hematopoiesis remains poorly characterized. Here we report that the epigenetic regulator Ezh2 is essential for YS hematopoiesis but dispensable for subsequent aorta-gonad-mesonephros (AGM) blood development. Loss of EZH2 activity in hemogenic endothelium (HE) leads to the generation of phenotypically intact but functionally deficient erythro-myeloid progenitors (EMPs), while the generation of primitive erythroid cells is not affected. EZH2 activity is critical for the generation of functional EMPs at the onset of the endothelial-to-hematopoietic transition but subsequently dispensable. We identify a lack of Wnt signaling downregulation as the primary reason for the production of non-functional EMPs. Together, our findings demonstrate a critical and stage-specific role of Ezh2 in modulating Wnt signaling during the generation of EMPs from YS HE.
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Affiliation(s)
- Wen Hao Neo
- Haematopoietic Stem Cell Biology Laboratory, MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, UK.
- Stem Cell Biology Group, Cancer Research UK Manchester Institute, The University of Manchester, Macclesfield, SK10 4TG, UK.
| | - Yiran Meng
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Alba Rodriguez-Meira
- Haematopoietic Stem Cell Biology Laboratory, MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Muhammad Z H Fadlullah
- Stem Cell Biology Group, Cancer Research UK Manchester Institute, The University of Manchester, Macclesfield, SK10 4TG, UK
| | - Christopher A G Booth
- Haematopoietic Stem Cell Biology Laboratory, MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Emanuele Azzoni
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, UK
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Supat Thongjuea
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Marella F T R de Bruijn
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Sten Eirik W Jacobsen
- Haematopoietic Stem Cell Biology Laboratory, MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, UK
- Department of Medicine Huddinge, Center for Hematology and Regenerative Medicine and Department of Cell and Molecular Biology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Adam J Mead
- Haematopoietic Stem Cell Biology Laboratory, MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, UK.
| | - Georges Lacaud
- Stem Cell Biology Group, Cancer Research UK Manchester Institute, The University of Manchester, Macclesfield, SK10 4TG, UK.
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21
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Nath A, Rayabaram J, Ijee S, Bagchi A, Chaudhury AD, Roy D, Chambayil K, Singh J, Nakamura Y, Velayudhan SR. Comprehensive Analysis of microRNAs in Human Adult Erythropoiesis. Cells 2021; 10:3018. [PMID: 34831239 PMCID: PMC8616439 DOI: 10.3390/cells10113018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/13/2021] [Accepted: 10/19/2021] [Indexed: 01/08/2023] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs, which play an important role in various cellular and developmental processes. The study of miRNAs in erythropoiesis is crucial to uncover the cellular pathways that are modulated during the different stages of erythroid differentiation. Using erythroid cells derived from human CD34+ hematopoietic stem and progenitor cells (HSPCs)and small RNA sequencing, our study unravels the various miRNAs involved in critical cellular pathways in erythroid maturation. We analyzed the occupancy of erythroid transcription factors and chromatin accessibility in the promoter and enhancer regions of the differentially expressed miRNAs to integrate miRNAs in the transcriptional circuitry of erythropoiesis. Analysis of the targets of the differentially expressed miRNAs revealed novel pathways in erythroid differentiation. Finally, we described the application of Clustered regularly interspaced short palindromic repeats-Cas9 (CRISPR-Cas9) based editing of miRNAs to study their function in human erythropoiesis.
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Affiliation(s)
- Aneesha Nath
- Center for Stem Cell Research (A Unit of InStem, Bengaluru, India), Christian Medical College, Vellore 632002, India; (A.N.); (S.I.); (A.B.); (K.C.)
| | - Janakiram Rayabaram
- Department of Haematology, Christian Medical College, Vellore 632004, India; (J.R.); (A.D.C.); (D.R.)
| | - Smitha Ijee
- Center for Stem Cell Research (A Unit of InStem, Bengaluru, India), Christian Medical College, Vellore 632002, India; (A.N.); (S.I.); (A.B.); (K.C.)
| | - Abhirup Bagchi
- Center for Stem Cell Research (A Unit of InStem, Bengaluru, India), Christian Medical College, Vellore 632002, India; (A.N.); (S.I.); (A.B.); (K.C.)
| | - Anurag Dutta Chaudhury
- Department of Haematology, Christian Medical College, Vellore 632004, India; (J.R.); (A.D.C.); (D.R.)
| | - Debanjan Roy
- Department of Haematology, Christian Medical College, Vellore 632004, India; (J.R.); (A.D.C.); (D.R.)
- Manipal Academy of Higher Education, Manipal 576119, India
| | - Karthik Chambayil
- Center for Stem Cell Research (A Unit of InStem, Bengaluru, India), Christian Medical College, Vellore 632002, India; (A.N.); (S.I.); (A.B.); (K.C.)
| | - Jyoti Singh
- National Centre for Cell Science, University of Pune Campus, Pune 411007, India;
| | - Yukio Nakamura
- Cell Engineering Division, RIKEN BioResource Research Center, Ibaraki 305-0074, Japan;
| | - Shaji R. Velayudhan
- Center for Stem Cell Research (A Unit of InStem, Bengaluru, India), Christian Medical College, Vellore 632002, India; (A.N.); (S.I.); (A.B.); (K.C.)
- Department of Haematology, Christian Medical College, Vellore 632004, India; (J.R.); (A.D.C.); (D.R.)
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22
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Yu L, Myers G, Ku CJ, Schneider E, Wang Y, Singh SA, Jearawiriyapaisarn N, White A, Moriguchi T, Khoriaty R, Yamamoto M, Rosenfeld MG, Pedron J, Bushweller JH, Lim KC, Engel JD. An erythroid-to-myeloid cell fate conversion is elicited by LSD1 inactivation. Blood 2021; 138:1691-1704. [PMID: 34324630 PMCID: PMC8569417 DOI: 10.1182/blood.2021011682] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 03/17/2021] [Accepted: 06/18/2021] [Indexed: 01/28/2023] Open
Abstract
Histone H3 lysine 4 methylation (H3K4Me) is most often associated with chromatin activation, and removing H3K4 methyl groups has been shown to be coincident with gene repression. H3K4Me demethylase KDM1a/LSD1 is a therapeutic target for multiple diseases, including for the potential treatment of β-globinopathies (sickle cell disease and β-thalassemia), because it is a component of γ-globin repressor complexes, and LSD1 inactivation leads to robust induction of the fetal globin genes. The effects of LSD1 inhibition in definitive erythropoiesis are not well characterized, so we examined the consequences of conditional inactivation of Lsd1 in adult red blood cells using a new Gata1creERT2 bacterial artificial chromosome transgene. Erythroid-specific loss of Lsd1 activity in mice led to a block in erythroid progenitor differentiation and to the expansion of granulocyte-monocyte progenitor-like cells, converting hematopoietic differentiation potential from an erythroid fate to a myeloid fate. The analogous phenotype was also observed in human hematopoietic stem and progenitor cells, coincident with the induction of myeloid transcription factors (eg, PU.1 and CEBPα). Finally, blocking the activity of the transcription factor PU.1 or RUNX1 at the same time as LSD1 inhibition rescued myeloid lineage conversion to an erythroid phenotype. These data show that LSD1 promotes erythropoiesis by repressing myeloid cell fate in adult erythroid progenitors and that inhibition of the myeloid-differentiation pathway reverses the lineage switch induced by LSD1 inactivation.
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Affiliation(s)
- Lei Yu
- Department of Cell and Developmental Biology
| | - Greggory Myers
- Department of Cell and Developmental Biology
- Department of Internal Medicine, and
| | - Chia-Jui Ku
- Department of Cell and Developmental Biology
| | | | - Yu Wang
- Department of Cell and Developmental Biology
| | - Sharon A Singh
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI
| | - Natee Jearawiriyapaisarn
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Andrew White
- Vahlteich Medicinal Chemistry Core, College of Pharmacy, University of Michigan, Ann Arbor, MI
| | - Takashi Moriguchi
- Division of Medical Chemistry, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Rami Khoriaty
- Department of Cell and Developmental Biology
- Department of Internal Medicine, and
| | - Masayuki Yamamoto
- Department of Cell and Developmental Biology
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Michael G Rosenfeld
- Department of Medicine, University of California San Diego School of Medicine, La Jolla, CA; and
| | - Julien Pedron
- Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville , VA
| | - John H Bushweller
- Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville , VA
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23
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Murphy ZC, Murphy K, Myers J, Getman M, Couch T, Schulz VP, Lezon-Geyda K, Palumbo C, Yan H, Mohandas N, Gallagher PG, Steiner LA. Regulation of RNA polymerase II activity is essential for terminal erythroid maturation. Blood 2021; 138:1740-1756. [PMID: 34075391 PMCID: PMC8569412 DOI: 10.1182/blood.2020009903] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 11/12/2020] [Accepted: 04/30/2021] [Indexed: 11/20/2022] Open
Abstract
The terminal maturation of human erythroblasts requires significant changes in gene expression in the context of dramatic nuclear condensation. Defects in this process are associated with inherited anemias and myelodysplastic syndromes. The progressively dense appearance of the condensing nucleus in maturing erythroblasts led to the assumption that heterochromatin accumulation underlies this process, but despite extensive study, the precise mechanisms underlying this essential biologic process remain elusive. To delineate the epigenetic changes associated with the terminal maturation of human erythroblasts, we performed mass spectrometry of histone posttranslational modifications combined with chromatin immunoprecipitation coupled with high-throughput sequencing, Assay for Transposase Accessible Chromatin, and RNA sequencing. Our studies revealed that the terminal maturation of human erythroblasts is associated with a dramatic decline in histone marks associated with active transcription elongation, without accumulation of heterochromatin. Chromatin structure and gene expression were instead correlated with dynamic changes in occupancy of elongation competent RNA polymerase II, suggesting that terminal erythroid maturation is controlled largely at the level of transcription. We further demonstrate that RNA polymerase II "pausing" is highly correlated with transcriptional repression, with elongation competent RNA polymerase II becoming a scare resource in late-stage erythroblasts, allocated to erythroid-specific genes. Functional studies confirmed an essential role for maturation stage-specific regulation of RNA polymerase II activity during erythroid maturation and demonstrate a critical role for HEXIM1 in the regulation of gene expression and RNA polymerase II activity in maturing erythroblasts. Taken together, our findings reveal important insights into the mechanisms that regulate terminal erythroid maturation and provide a novel paradigm for understanding normal and perturbed erythropoiesis.
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Affiliation(s)
| | | | - Jacquelyn Myers
- Department of Pediatrics and
- Genomics Resource Center, University of Rochester, Rochester, NY
| | | | | | | | | | - Cal Palumbo
- Genomics Resource Center, University of Rochester, Rochester, NY
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24
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Broxmeyer HE, Cooper SH, Ropa J. CXCL15/Lungkine has suppressive activity on proliferation and expansion of multi-potential, erythroid, granulocyte and macrophage progenitors in S-phase specific manner. Blood Cells Mol Dis 2021; 91:102594. [PMID: 34520986 PMCID: PMC9231597 DOI: 10.1016/j.bcmd.2021.102594] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/28/2021] [Accepted: 07/01/2021] [Indexed: 11/25/2022]
Abstract
Cytokines/chemokines regulate hematopoiesis, most having multiple cell actions. Numerous but not all chemokine family members act as negative regulators of hematopoietic progenitor cell (HPC) proliferation, but very little is known about such effects of the chemokine, CXCL15/Lungkine. We found that CXCL15/Lungkine-/- mice have greatly increased cycling of multi cytokine-stimulated bone marrow and spleen hematopoietic progenitor cells (HPCs: CFU-GM, BFU-E, and CFU-GEMM) and CXCL15 is expressed in many bone marrow progenitor and other cell types. This suggests that CXCL15/Lungkine acts as a negative regulator of the cell cycling of these HPCs in vivo. Recombinant murine CXCL15/Lungkine, decreased numbers of functional HPCs during cytokine-enhanced ex-vivo culture of lineage negative mouse bone marrow cells. Moreover, CXCL15/Lungkine, through S-Phase specific actions, was able to suppress in vitro colony formation of normal wildtype mouse bone marrow CFU-GM, CFU-G, CFU-M, BFU-E, and CFU-GEMM. This clearly identifies the negative regulatory activity of CXCL15/Lungkine on proliferation of multiple types of mouse HPCs.
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Affiliation(s)
- Hal E Broxmeyer
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202-5181, USA.
| | - Scott H Cooper
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202-5181, USA
| | - James Ropa
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202-5181, USA
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25
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Thoms JAI, Truong P, Subramanian S, Knezevic K, Harvey G, Huang Y, Seneviratne JA, Carter DR, Joshi S, Skhinas J, Chacon D, Shah A, de Jong I, Beck D, Göttgens B, Larsson J, Wong JWH, Zanini F, Pimanda JE. Disruption of a GATA2-TAL1-ERG regulatory circuit promotes erythroid transition in healthy and leukemic stem cells. Blood 2021; 138:1441-1455. [PMID: 34075404 DOI: 10.1182/blood.2020009707] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 10/27/2020] [Accepted: 05/03/2021] [Indexed: 10/21/2022] Open
Abstract
Changes in gene regulation and expression govern orderly transitions from hematopoietic stem cells to terminally differentiated blood cell types. These transitions are disrupted during leukemic transformation, but knowledge of the gene regulatory changes underpinning this process is elusive. We hypothesized that identifying core gene regulatory networks in healthy hematopoietic and leukemic cells could provide insights into network alterations that perturb cell state transitions. A heptad of transcription factors (LYL1, TAL1, LMO2, FLI1, ERG, GATA2, and RUNX1) bind key hematopoietic genes in human CD34+ hematopoietic stem and progenitor cells (HSPCs) and have prognostic significance in acute myeloid leukemia (AML). These factors also form a densely interconnected circuit by binding combinatorially at their own, and each other's, regulatory elements. However, their mutual regulation during normal hematopoiesis and in AML cells, and how perturbation of their expression levels influences cell fate decisions remains unclear. In this study, we integrated bulk and single-cell data and found that the fully connected heptad circuit identified in healthy HSPCs persists, with only minor alterations in AML, and that chromatin accessibility at key heptad regulatory elements was predictive of cell identity in both healthy progenitors and leukemic cells. The heptad factors GATA2, TAL1, and ERG formed an integrated subcircuit that regulates stem cell-to-erythroid transition in both healthy and leukemic cells. Components of this triad could be manipulated to facilitate erythroid transition providing a proof of concept that such regulatory circuits can be harnessed to promote specific cell-type transitions and overcome dysregulated hematopoiesis.
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Affiliation(s)
| | - Peter Truong
- Adult Cancer Program, and
- Prince of Wales Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, Australia
| | - Shruthi Subramanian
- Adult Cancer Program, and
- Prince of Wales Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, Australia
| | - Kathy Knezevic
- Adult Cancer Program, and
- Prince of Wales Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, Australia
| | - Gregory Harvey
- Adult Cancer Program, and
- Prince of Wales Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, Australia
| | - Yizhou Huang
- Adult Cancer Program, and
- Prince of Wales Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, Australia
- School of Biomedical Engineering, University of Technology Sydney, Sydney, NSW, Australia
| | - Janith A Seneviratne
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW, Australia
| | - Daniel R Carter
- School of Biomedical Engineering, University of Technology Sydney, Sydney, NSW, Australia
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW, Australia
| | - Swapna Joshi
- Adult Cancer Program, and
- Prince of Wales Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, Australia
| | - Joanna Skhinas
- Adult Cancer Program, and
- Prince of Wales Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, Australia
| | - Diego Chacon
- School of Biomedical Engineering, University of Technology Sydney, Sydney, NSW, Australia
| | - Anushi Shah
- Adult Cancer Program, and
- Prince of Wales Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, Australia
| | - Ineke de Jong
- Division of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Dominik Beck
- Adult Cancer Program, and
- Prince of Wales Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, Australia
- School of Biomedical Engineering, University of Technology Sydney, Sydney, NSW, Australia
| | - Berthold Göttgens
- Wellcome and Medical Research Council (MRC) Cambridge Stem Cell Institute, Cambridge, United Kingdom
| | - Jonas Larsson
- Division of Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Jason W H Wong
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Fabio Zanini
- Adult Cancer Program, and
- Prince of Wales Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, Australia
- Garvan-Weizmann Centre for Cellular Genomics, Garvan Institute of Medical Research, Sydney, NSW, Australia; and
| | - John E Pimanda
- School of Medical Sciences
- Adult Cancer Program, and
- Prince of Wales Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, Australia
- Department of Haematology, Prince of Wales Hospital, Randwick, NSW, Australia
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26
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Yan B, Yang J, Kim MY, Luo H, Cesari N, Yang T, Strouboulis J, Zhang J, Hardison R, Huang S, Qiu Y. HDAC1 is required for GATA-1 transcription activity, global chromatin occupancy and hematopoiesis. Nucleic Acids Res 2021; 49:9783-9798. [PMID: 34450641 PMCID: PMC8464053 DOI: 10.1093/nar/gkab737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 08/05/2021] [Accepted: 08/16/2021] [Indexed: 12/20/2022] Open
Abstract
The activity of hematopoietic factor GATA-1 is modulated through p300/CBP-mediated acetylation and FOG-1 mediated indirect interaction with HDAC1/2 containing NuRD complex. Although GATA-1 acetylation is implicated in GATA-1 activation, the role of deacetylation is not studied. Here, we found that the FOG-1/NuRD does not deacetylate GATA-1. However, HDAC1/2 can directly bind and deacetylate GATA-1. Two arginine residues within the GATA-1 linker region mediates direct interaction with HDAC1. The arginine to alanine mutation (2RA) blocks GATA-1 deacetylation and fails to induce erythroid differentiation. Gene expression profiling and ChIP-seq analysis further demonstrate the importance of GATA-1 deacetylation for gene activation and chromatin recruitment. GATA-12RA knock-in (KI) mice suffer mild anemia and thrombocytopenia with accumulation of immature erythrocytes and megakaryocytes in bone marrow and spleen. Single cell RNA-seq analysis of Lin- cKit+ (LK) cells further reveal a profound change in cell subpopulations and signature gene expression patterns in HSC, myeloid progenitors, and erythroid/megakaryocyte clusters in KI mice. Thus, GATA-1 deacetylation and its interaction with HDAC1 modulates GATA-1 chromatin binding and transcriptional activity that control erythroid/megakaryocyte commitment and differentiation.
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Affiliation(s)
- Bowen Yan
- Department of Cellular and Molecular Physiology, Hershey, PA 17033, USA
| | - Jennifer Yang
- Department of Cellular and Molecular Physiology, Hershey, PA 17033, USA
| | - Min Young Kim
- Department of Cellular and Molecular Physiology, Hershey, PA 17033, USA
| | - Huacheng Luo
- Department of Pediatrics, Hershey, PA 17033, USA
| | | | - Tao Yang
- Department of Cellular and Molecular Physiology, Hershey, PA 17033, USA
| | - John Strouboulis
- Comprehensive Cancer Center, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College London, London SE5 9NU, UK
| | - Jiwang Zhang
- Department of Pathology, Loyola University Medical Center, Maywood, IL 60153, USA
| | - Ross Hardison
- Departments of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Suming Huang
- Department of Pediatrics, Hershey, PA 17033, USA
- Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Yi Qiu
- To whom correspondence should be addressed. Tel: +1 717 531 0003 (Ext 321489); Fax: +1 717 531 7667;
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27
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Murdaugh RL, Hoegenauer KA, Kitano A, Holt MV, Hill MC, Shi X, Tiessen JF, Chapple R, Hu T, Tseng YJ, Lin A, Martin JF, Young NL, Nakada D. The histone H3.3 chaperone HIRA restrains erythroid-biased differentiation of adult hematopoietic stem cells. Stem Cell Reports 2021; 16:2014-2028. [PMID: 34242617 PMCID: PMC8365107 DOI: 10.1016/j.stemcr.2021.06.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 06/11/2021] [Accepted: 06/11/2021] [Indexed: 11/15/2022] Open
Abstract
Histone variants contribute to the complexity of the chromatin landscape and play an integral role in defining DNA domains and regulating gene expression. The histone H3 variant H3.3 is incorporated into genic elements independent of DNA replication by its chaperone HIRA. Here we demonstrate that Hira is required for the self-renewal of adult hematopoietic stem cells (HSCs) and to restrain erythroid differentiation. Deletion of Hira led to rapid depletion of HSCs while differentiated hematopoietic cells remained largely unaffected. Depletion of HSCs after Hira deletion was accompanied by increased expression of bivalent and erythroid genes, which was exacerbated upon cell division and paralleled increased erythroid differentiation. Assessing H3.3 occupancy identified a subset of polycomb-repressed chromatin in HSCs that depends on HIRA to maintain the inaccessible, H3.3-occupied state for gene repression. HIRA-dependent H3.3 incorporation thus defines distinct repressive chromatin that represses erythroid differentiation of HSCs.
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Affiliation(s)
- Rebecca L Murdaugh
- Graduate Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Kevin A Hoegenauer
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ayumi Kitano
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Matthew V Holt
- Graduate Program in Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA; Verna & Marrs McLean Department of Biochemistry & Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Matthew C Hill
- Graduate Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Xiangguo Shi
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jonathan F Tiessen
- Graduate Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Richard Chapple
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Tianyuan Hu
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yu-Jung Tseng
- Graduate Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Angelique Lin
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - James F Martin
- Graduate Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Heart Institute, Houston, TX 77030, USA
| | - Nicolas L Young
- Graduate Program in Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA; Verna & Marrs McLean Department of Biochemistry & Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Daisuke Nakada
- Graduate Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Graduate Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
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28
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Kim HJ, Park JW, Kang JY, Seo SB. Negative Regulation of Erythroid Differentiation via the CBX8-TRIM28 Axis. Mol Cells 2021; 44:444-457. [PMID: 34253692 PMCID: PMC8334346 DOI: 10.14348/molcells.2021.0012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/25/2021] [Accepted: 04/29/2021] [Indexed: 12/26/2022] Open
Abstract
Although the mechanism of chronic myeloid leukemia (CML) initiation through BCR/ABL oncogene has been well characterized, CML cell differentiation into erythroid lineage cells remains poorly understood. Using CRISPR-Cas9 screening, we identify Chromobox 8 (CBX8) as a negative regulator of K562 cell differentiation into erythrocytes. CBX8 is degraded via proteasomal pathway during K562 cell differentiation, which activates the expression of erythroid differentiation-related genes that are repressed by CBX8 in the complex of PRC1. During the differentiation process, the serine/threonine-protein kinase PIM1 phosphorylates serine 196 on CBX8, which contributes to CBX8 reduction. When CD235A expression levels are analyzed, the result reveals that the knockdown of PIM1 inhibits K562 cell differentiation. We also identify TRIM28 as another interaction partner of CBX8 by proteomic analysis. Intriguingly, TRIM28 maintains protein stability of CBX8 and TRIM28 loss significantly induces proteasomal degradation of CBX8, resulting in an acceleration of erythroid differentiation. Here, we demonstrate the involvement of the CBX8-TRIM28 axis during CML cell differentiation, suggesting that CBX8 and TRIM28 are promising novel targets for CML research.
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Affiliation(s)
- Hyun Jeong Kim
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul 06974, Korea
| | - Jin Woo Park
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul 06974, Korea
| | - Joo-Young Kang
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul 06974, Korea
| | - Sang-Beom Seo
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul 06974, Korea
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29
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King AJ, Songdej D, Downes DJ, Beagrie RA, Liu S, Buckley M, Hua P, Suciu MC, Marieke Oudelaar A, Hanssen LLP, Jeziorska D, Roberts N, Carpenter SJ, Francis H, Telenius J, Olijnik AA, Sharpe JA, Sloane-Stanley J, Eglinton J, Kassouf MT, Orkin SH, Pennacchio LA, Davies JOJ, Hughes JR, Higgs DR, Babbs C. Reactivation of a developmentally silenced embryonic globin gene. Nat Commun 2021; 12:4439. [PMID: 34290235 PMCID: PMC8295333 DOI: 10.1038/s41467-021-24402-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 06/12/2021] [Indexed: 12/26/2022] Open
Abstract
The α- and β-globin loci harbor developmentally expressed genes, which are silenced throughout post-natal life. Reactivation of these genes may offer therapeutic approaches for the hemoglobinopathies, the most common single gene disorders. Here, we address mechanisms regulating the embryonically expressed α-like globin, termed ζ-globin. We show that in embryonic erythroid cells, the ζ-gene lies within a ~65 kb sub-TAD (topologically associating domain) of open, acetylated chromatin and interacts with the α-globin super-enhancer. By contrast, in adult erythroid cells, the ζ-gene is packaged within a small (~10 kb) sub-domain of hypoacetylated, facultative heterochromatin within the acetylated sub-TAD and that it no longer interacts with its enhancers. The ζ-gene can be partially re-activated by acetylation and inhibition of histone de-acetylases. In addition to suggesting therapies for severe α-thalassemia, these findings illustrate the general principles by which reactivation of developmental genes may rescue abnormalities arising from mutations in their adult paralogues.
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Affiliation(s)
- Andrew J King
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Duantida Songdej
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- Division of Hematology/Oncology, Department of Pediatrics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Damien J Downes
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Robert A Beagrie
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Siyu Liu
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- Chinese Academy of Medical Sciences Oxford Institute, University of Oxford, Oxford, UK
| | - Megan Buckley
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Peng Hua
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Maria C Suciu
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | | | - Lars L P Hanssen
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Danuta Jeziorska
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Nigel Roberts
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Stephanie J Carpenter
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Helena Francis
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Jelena Telenius
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Aude-Anais Olijnik
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Jacqueline A Sharpe
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Jacqueline Sloane-Stanley
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Jennifer Eglinton
- National Haemoglobinopathy Reference Laboratory, Department of Haematology, Level 4, John Radcliffe Hospital, Oxford, UK
| | - Mira T Kassouf
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Stuart H Orkin
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Harvard Medical School and Howard Hughes Medical Institute, Boston, MA, USA
| | - Len A Pennacchio
- Functional Genomics Department, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Comparative Biochemistry Program, University of California, Berkeley, CA, USA
| | - James O J Davies
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Jim R Hughes
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Douglas R Higgs
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK.
| | - Christian Babbs
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK.
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30
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Barile M, Imaz-Rosshandler I, Inzani I, Ghazanfar S, Nichols J, Marioni JC, Guibentif C, Göttgens B. Coordinated changes in gene expression kinetics underlie both mouse and human erythroid maturation. Genome Biol 2021; 22:197. [PMID: 34225769 PMCID: PMC8258993 DOI: 10.1186/s13059-021-02414-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 06/21/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Single-cell technologies are transforming biomedical research, including the recent demonstration that unspliced pre-mRNA present in single-cell RNA-Seq permits prediction of future expression states. Here we apply this RNA velocity concept to an extended timecourse dataset covering mouse gastrulation and early organogenesis. RESULTS Intriguingly, RNA velocity correctly identifies epiblast cells as the starting point, but several trajectory predictions at later stages are inconsistent with both real-time ordering and existing knowledge. The most striking discrepancy concerns red blood cell maturation, with velocity-inferred trajectories opposing the true differentiation path. Investigating the underlying causes reveals a group of genes with a coordinated step-change in transcription, thus violating the assumptions behind current velocity analysis suites, which do not accommodate time-dependent changes in expression dynamics. Using scRNA-Seq analysis of chimeric mouse embryos lacking the major erythroid regulator Gata1, we show that genes with the step-changes in expression dynamics during erythroid differentiation fail to be upregulated in the mutant cells, thus underscoring the coordination of modulating transcription rate along a differentiation trajectory. In addition to the expected block in erythroid maturation, the Gata1-chimera dataset reveals induction of PU.1 and expansion of megakaryocyte progenitors. Finally, we show that erythropoiesis in human fetal liver is similarly characterized by a coordinated step-change in gene expression. CONCLUSIONS By identifying a limitation of the current velocity framework coupled with in vivo analysis of mutant cells, we reveal a coordinated step-change in gene expression kinetics during erythropoiesis, with likely implications for many other differentiation processes.
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Affiliation(s)
- Melania Barile
- Department of Haematology, University of Cambridge, Cambridge, CB2 0AW UK
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW UK
| | - Ivan Imaz-Rosshandler
- Department of Haematology, University of Cambridge, Cambridge, CB2 0AW UK
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW UK
| | - Isabella Inzani
- University of Cambridge Metabolic Research Laboratories and MRC Metabolic Diseases Unit, Cambridge, CB2 0QQ UK
| | - Shila Ghazanfar
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, CB2 0RE UK
| | - Jennifer Nichols
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, CB2 3DY UK
| | - John C. Marioni
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, CB2 0RE UK
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, CB10 1SA UK
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome Campus, Cambridge, CB10 1SD UK
| | - Carolina Guibentif
- Department of Haematology, University of Cambridge, Cambridge, CB2 0AW UK
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW UK
- Sahlgrenska Center for Cancer Research, Department of Microbiology and Immunology, University of Gothenburg, 413 90 Gothenburg, Sweden
| | - Berthold Göttgens
- Department of Haematology, University of Cambridge, Cambridge, CB2 0AW UK
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW UK
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31
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Hua P, Badat M, Hanssen LLP, Hentges LD, Crump N, Downes DJ, Jeziorska DM, Oudelaar AM, Schwessinger R, Taylor S, Milne TA, Hughes JR, Higgs DR, Davies JOJ. Defining genome architecture at base-pair resolution. Nature 2021; 595:125-129. [PMID: 34108683 DOI: 10.1038/s41586-021-03639-4] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [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: 02/25/2020] [Accepted: 05/13/2021] [Indexed: 12/16/2022]
Abstract
In higher eukaryotes, many genes are regulated by enhancers that are 104-106 base pairs (bp) away from the promoter. Enhancers contain transcription-factor-binding sites (which are typically around 7-22 bp), and physical contact between the promoters and enhancers is thought to be required to modulate gene expression. Although chromatin architecture has been mapped extensively at resolutions of 1 kilobase and above; it has not been possible to define physical contacts at the scale of the proteins that determine gene expression. Here we define these interactions in detail using a chromosome conformation capture method (Micro-Capture-C) that enables the physical contacts between different classes of regulatory elements to be determined at base-pair resolution. We find that highly punctate contacts occur between enhancers, promoters and CCCTC-binding factor (CTCF) sites and we show that transcription factors have an important role in the maintenance of the contacts between enhancers and promoters. Our data show that interactions between CTCF sites are increased when active promoters and enhancers are located within the intervening chromatin. This supports a model in which chromatin loop extrusion1 is dependent on cohesin loading at active promoters and enhancers, which explains the formation of tissue-specific chromatin domains without changes in CTCF binding.
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Affiliation(s)
- Peng Hua
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Mohsin Badat
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Lars L P Hanssen
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Lance D Hentges
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Nicholas Crump
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Damien J Downes
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Danuta M Jeziorska
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | | | - Ron Schwessinger
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Stephen Taylor
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Thomas A Milne
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Jim R Hughes
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Doug R Higgs
- Laboratory of Gene Regulation, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - James O J Davies
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK.
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Abstract
There are many co-regulated genes in eukaryotic cells. The coordinated activation or repression of such genes occurs at specific stages of differentiation, or under the influence of external stimuli. As a rule, co-regulated genes are dispersed in the genome. However, there are also gene clusters, which contain paralogous genes that encode proteins with similar functions. In this aspect, they differ significantly from bacterial operons containing functionally linked genes that are not paralogs. In this review, we discuss the reasons for the existence of gene clusters in vertebrate cells and propose that clustering is necessary to ensure the possibility of selective activation of one of several similar genes.
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Affiliation(s)
- Sergey V. Razin
- Institute of Gene Biology Russian Academy of Sciences, 119334 Moscow, Russia; (E.S.I.); (O.L.K.); (O.V.I.)
- Faculty of Biology, M.V. Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Elena S. Ioudinkova
- Institute of Gene Biology Russian Academy of Sciences, 119334 Moscow, Russia; (E.S.I.); (O.L.K.); (O.V.I.)
| | - Omar L. Kantidze
- Institute of Gene Biology Russian Academy of Sciences, 119334 Moscow, Russia; (E.S.I.); (O.L.K.); (O.V.I.)
| | - Olga V. Iarovaia
- Institute of Gene Biology Russian Academy of Sciences, 119334 Moscow, Russia; (E.S.I.); (O.L.K.); (O.V.I.)
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33
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Di Genua C, Nerlov C. To bi or not to bi: Acute erythroid leukemias and hematopoietic lineage choice. Exp Hematol 2021; 97:6-13. [PMID: 33600869 DOI: 10.1016/j.exphem.2021.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 11/10/2020] [Revised: 02/09/2021] [Accepted: 02/11/2021] [Indexed: 10/22/2022]
Abstract
Acute erythroid leukemia (AEL) is an acute leukemia characterized by erythroid lineage transformation. The World Health Organization (WHO) 2008 classification recognized two subtypes of AEL: bilineage erythroleukemia (erythroid/myeloid leukemia) and pure erythroid leukemia. The erythroleukemia subtype was removed in the updated 2016 WHO classification, with about half of cases reclassified as myelodysplastic syndrome (MDS) and half as acute myeloid leukemia (AML). Diagnosis and classification are currently based on morphology using standard blast cutoffs, without integration of underlying genomic and other molecular features. Key outstanding questions are therefore whether AEL can be accurately diagnosed based solely on morphology or whether genetic or other molecular criteria should be included in its classification, and whether considering AEL as an entity distinct from AML and MDS is clinically relevant. We discuss recent work on the molecular basis of AEL, including the identification of mutations causative of AEL and of transcriptional and epigenetic features that can be used to distinguish AEL from MDS and nonerythroid AML, and the prognostic value of these molecular features.
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MESH Headings
- Animals
- Epigenesis, Genetic
- Erythroid Cells/metabolism
- Erythroid Cells/pathology
- Gene Expression Regulation, Leukemic
- Humans
- Leukemia, Erythroblastic, Acute/diagnosis
- Leukemia, Erythroblastic, Acute/genetics
- Leukemia, Erythroblastic, Acute/pathology
- Leukemia, Myeloid, Acute/diagnosis
- Leukemia, Myeloid, Acute/genetics
- Mutation
- Myelodysplastic Syndromes/diagnosis
- Myelodysplastic Syndromes/genetics
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Affiliation(s)
- Cristina Di Genua
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, UK
| | - Claus Nerlov
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, UK.
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34
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Raundhal M, Ghosh S, Myers SA, Cuoco MS, Singer M, Carr SA, Waikar SS, Bonventre JV, Ritz J, Stone RM, Steensma DP, Regev A, Glimcher LH. Blockade of IL-22 signaling reverses erythroid dysfunction in stress-induced anemias. Nat Immunol 2021; 22:520-529. [PMID: 33753942 PMCID: PMC8026551 DOI: 10.1038/s41590-021-00895-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 02/03/2021] [Indexed: 02/06/2023]
Abstract
Patients with myelodysplastic syndromes (MDSs) display severe anemia but the mechanisms underlying this phenotype are incompletely understood. Right open-reading-frame kinase 2 (RIOK2) encodes a protein kinase located at 5q15, a region frequently lost in patients with MDS del(5q). Here we show that hematopoietic cell-specific haploinsufficient deletion of Riok2 (Riok2f/+Vav1cre) led to reduced erythroid precursor frequency leading to anemia. Proteomic analysis of Riok2f/+Vav1cre erythroid precursors suggested immune system activation, and transcriptomic analysis revealed an increase in p53-dependent interleukin (IL)-22 in Riok2f/+Vav1cre CD4+ T cells (TH22). Further, we discovered that the IL-22 receptor, IL-22RA1, was unexpectedly present on erythroid precursors. Blockade of IL-22 signaling alleviated anemia not only in Riok2f/+Vav1cre mice but also in wild-type mice. Serum concentrations of IL-22 were increased in the subset of patients with del(5q) MDS as well as patients with anemia secondary to chronic kidney disease. This work reveals a possible therapeutic opportunity for reversing many stress-induced anemias by targeting IL-22 signaling.
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MESH Headings
- Anemia/blood
- Anemia/immunology
- Anemia/metabolism
- Anemia/prevention & control
- Animals
- Antibodies, Neutralizing/pharmacology
- Cells, Cultured
- Cellular Microenvironment
- Disease Models, Animal
- Erythroid Cells/immunology
- Erythroid Cells/metabolism
- Erythropoiesis/drug effects
- Humans
- Interleukins/antagonists & inhibitors
- Interleukins/immunology
- Interleukins/metabolism
- Mice, Inbred C57BL
- Mice, Knockout
- Myelodysplastic Syndromes/blood
- Myelodysplastic Syndromes/drug therapy
- Myelodysplastic Syndromes/immunology
- Myelodysplastic Syndromes/metabolism
- Protein Serine-Threonine Kinases/genetics
- Protein Serine-Threonine Kinases/metabolism
- Proto-Oncogene Proteins c-vav/genetics
- Proto-Oncogene Proteins c-vav/metabolism
- Receptors, Interleukin/genetics
- Receptors, Interleukin/metabolism
- Renal Insufficiency, Chronic/blood
- Renal Insufficiency, Chronic/immunology
- Renal Insufficiency, Chronic/metabolism
- Signal Transduction
- Tumor Suppressor Protein p53/genetics
- Tumor Suppressor Protein p53/metabolism
- Interleukin-22
- Mice
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Affiliation(s)
- Mahesh Raundhal
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA, USA.
- Department of Immunology, Harvard Medical School, Boston, MA, USA.
- Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA.
| | - Shrestha Ghosh
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Immunology, Harvard Medical School, Boston, MA, USA
- Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | | | - Michael S Cuoco
- Klarman Cell Observatory, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Meromit Singer
- Department of Immunology, Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Data Sciences, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Steven A Carr
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Sushrut S Waikar
- Renal Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Renal Section, Boston University Medical Center, Boston, MA, USA
| | - Joseph V Bonventre
- Renal Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jerome Ritz
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Richard M Stone
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - David P Steensma
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Aviv Regev
- Klarman Cell Observatory, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
- Koch Institute for Integrative Cancer Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Laurie H Glimcher
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA, USA.
- Department of Immunology, Harvard Medical School, Boston, MA, USA.
- Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA.
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35
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Papasavva PL, Papaioannou NY, Patsali P, Kurita R, Nakamura Y, Sitarou M, Christou S, Kleanthous M, Lederer CW. Distinct miRNA Signatures and Networks Discern Fetal from Adult Erythroid Differentiation and Primary from Immortalized Erythroid Cells. Int J Mol Sci 2021; 22:3626. [PMID: 33807258 PMCID: PMC8037168 DOI: 10.3390/ijms22073626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 01/22/2023] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs crucial for post-transcriptional and translational regulation of cellular and developmental pathways. The study of miRNAs in erythropoiesis elucidates underlying regulatory mechanisms and facilitates related diagnostic and therapy development. Here, we used DNA Nanoball (DNB) small RNA sequencing to comprehensively characterize miRNAs in human erythroid cell cultures. Based on primary human peripheral-blood-derived CD34+ (hCD34+) cells and two influential erythroid cell lines with adult and fetal hemoglobin expression patterns, HUDEP-2 and HUDEP-1, respectively, our study links differential miRNA expression to erythroid differentiation, cell type, and hemoglobin expression profile. Sequencing results validated by reverse-transcription quantitative PCR (RT-qPCR) of selected miRNAs indicate shared differentiation signatures in primary and immortalized cells, characterized by reduced overall miRNA expression and reciprocal expression increases for individual lineage-specific miRNAs in late-stage erythropoiesis. Despite the high similarity of same-stage hCD34+ and HUDEP-2 cells, differential expression of several miRNAs highlighted informative discrepancies between both cell types. Moreover, a comparison between HUDEP-2 and HUDEP-1 cells displayed changes in miRNAs, transcription factors (TFs), target genes, and pathways associated with globin switching. In resulting TF-miRNA co-regulatory networks, major therapeutically relevant regulators of globin expression were targeted by many co-expressed miRNAs, outlining intricate combinatorial miRNA regulation of globin expression in erythroid cells.
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Affiliation(s)
- Panayiota L. Papasavva
- Department of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus; (P.L.P.); (N.Y.P.); (P.P.); (M.K.)
- Cyprus School of Molecular Medicine, Nicosia 2371, Cyprus
| | - Nikoletta Y. Papaioannou
- Department of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus; (P.L.P.); (N.Y.P.); (P.P.); (M.K.)
- Cyprus School of Molecular Medicine, Nicosia 2371, Cyprus
| | - Petros Patsali
- Department of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus; (P.L.P.); (N.Y.P.); (P.P.); (M.K.)
- Cyprus School of Molecular Medicine, Nicosia 2371, Cyprus
| | - Ryo Kurita
- Cell Engineering Division, RIKEN BioResource Center, Tsukuba, Ibaraki 305-0074, Japan; (R.K.); (Y.N.)
| | - Yukio Nakamura
- Cell Engineering Division, RIKEN BioResource Center, Tsukuba, Ibaraki 305-0074, Japan; (R.K.); (Y.N.)
| | - Maria Sitarou
- Thalassemia Clinic Larnaca, Larnaca General Hospital, Larnaca 6301, Cyprus;
| | - Soteroulla Christou
- Thalassemia Clinic Nicosia, Archbishop Makarios III Hospital, Nicosia 1474, Cyprus;
| | - Marina Kleanthous
- Department of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus; (P.L.P.); (N.Y.P.); (P.P.); (M.K.)
- Cyprus School of Molecular Medicine, Nicosia 2371, Cyprus
| | - Carsten W. Lederer
- Department of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology and Genetics, Nicosia 2371, Cyprus; (P.L.P.); (N.Y.P.); (P.P.); (M.K.)
- Cyprus School of Molecular Medicine, Nicosia 2371, Cyprus
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36
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Brindley EC, Papoin J, Kennedy L, Robledo RF, Ciciotte SL, Kalfa TA, Peters LL, Blanc L. Rasa3 regulates stage-specific cell cycle progression in murine erythropoiesis. Blood Cells Mol Dis 2021; 87:102524. [PMID: 33341069 PMCID: PMC7856249 DOI: 10.1016/j.bcmd.2020.102524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 11/25/2020] [Indexed: 10/22/2022]
Abstract
Inherited bone marrow failure syndromes (IBMFS) are heterogeneous disorders characterized by dysregulated hematopoiesis in various lineages, developmental anomalies, and predisposition to malignancy. The scat (severe combined anemia and thrombocytopenia) mouse model is a model of IBMFS with a phenotype of pancytopenia cycling through crises and remission. Scat carries an autosomal recessive missense mutation in Rasa3 that results in RASA3 mislocalization and loss of function. RASA3 functions as a Ras-GTPase activating protein (GAP), and its loss of function in scat results in increased erythroid RAS activity and reactive oxygen species (ROS) and altered erythroid cell cycle progression, culminating in delayed terminal erythroid differentiation. Here we sought to further resolve the erythroid cell cycle defect in scat through ex vivo flow cytometric analyses. These studies revealed a specific G0/G1 accumulation in scat bone marrow (BM) polychromatophilic erythroblasts and scat BM Ter119-/c-KIT+/CD71lo/med progenitors, with no changes evident in equivalent scat spleen populations. Systematic analyses of RNAseq data from megakaryocyte-erythroid progenitors (MEPs) in scat crisis vs. scat partial remission reveal altered expression of genes involved in the G1-S checkpoint. Together, these data indicate a precise, biphasic role for RASA3 in regulating the cell cycle during erythropoiesis with relevance to hematopoietic disease progression.
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Affiliation(s)
- Elena C Brindley
- Department of Molecular Medicine and Pediatrics, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549, USA; Laboratory of Developmental Erythropoiesis, Les Nelkin Memorial Laboratory of Pediatric Oncology, Institute of Molecular Medicine, The Feinstein Institutes for Medical Research, Manhasset, NY 11030, USA
| | - Julien Papoin
- Laboratory of Developmental Erythropoiesis, Les Nelkin Memorial Laboratory of Pediatric Oncology, Institute of Molecular Medicine, The Feinstein Institutes for Medical Research, Manhasset, NY 11030, USA
| | - Lauren Kennedy
- Laboratory of Developmental Erythropoiesis, Les Nelkin Memorial Laboratory of Pediatric Oncology, Institute of Molecular Medicine, The Feinstein Institutes for Medical Research, Manhasset, NY 11030, USA
| | | | | | - Theodosia A Kalfa
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 05229, USA
| | | | - Lionel Blanc
- Department of Molecular Medicine and Pediatrics, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549, USA; Laboratory of Developmental Erythropoiesis, Les Nelkin Memorial Laboratory of Pediatric Oncology, Institute of Molecular Medicine, The Feinstein Institutes for Medical Research, Manhasset, NY 11030, USA.
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37
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Ma Y, Liu S, Gao J, Chen C, Zhang X, Yuan H, Chen Z, Yin X, Sun C, Mao Y, Zhou F, Shao Y, Liu Q, Xu J, Cheng L, Yu D, Li P, Yi P, He J, Geng G, Guo Q, Si Y, Zhao H, Li H, Banes GL, Liu H, Nakamura Y, Kurita R, Huang Y, Wang X, Wang F, Fang G, Engel JD, Shi L, Zhang YE, Yu J. Genome-wide analysis of pseudogenes reveals HBBP1's human-specific essentiality in erythropoiesis and implication in β-thalassemia. Dev Cell 2021; 56:478-493.e11. [PMID: 33476555 DOI: 10.1016/j.devcel.2020.12.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 11/16/2020] [Accepted: 12/28/2020] [Indexed: 02/05/2023]
Abstract
The human genome harbors 14,000 duplicated or retroposed pseudogenes. Given their functionality as regulatory RNAs and low conservation, we hypothesized that pseudogenes could shape human-specific phenotypes. To test this, we performed co-expression analyses and found that pseudogene exhibited tissue-specific expression, especially in the bone marrow. By incorporating genetic data, we identified a bone-marrow-specific duplicated pseudogene, HBBP1 (η-globin), which has been implicated in β-thalassemia. Extensive functional assays demonstrated that HBBP1 is essential for erythropoiesis by binding the RNA-binding protein (RBP), HNRNPA1, to upregulate TAL1, a key regulator of erythropoiesis. The HBBP1/TAL1 interaction contributes to a milder symptom in β-thalassemia patients. Comparative studies further indicated that the HBBP1/TAL1 interaction is human-specific. Genome-wide analyses showed that duplicated pseudogenes are often bound by RBPs and less commonly bound by microRNAs compared with retropseudogenes. Taken together, we not only demonstrate that pseudogenes can drive human evolution but also provide insights on their functional landscapes.
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Affiliation(s)
- Yanni Ma
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China; Key Laboratory of RNA and Hematopoietic Regulation, Chinese Academy of Medical Sciences, Beijing 100005, China.
| | - Siqi Liu
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China; Key Laboratory of RNA and Hematopoietic Regulation, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Jie Gao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Chunyan Chen
- Key Laboratory of Zoological Systematics and Evolution & State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Zhang
- Laboratory of Molecular Cardiology & Medical Molecular Imaging, First Affiliated Hospital of Shantou University Medical College, Shantou 515041, China
| | - Hao Yuan
- Key Laboratory of Zoological Systematics and Evolution & State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhongyang Chen
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China; Key Laboratory of RNA and Hematopoietic Regulation, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Xiaolin Yin
- 923rd Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army, Guangxi 530021, China
| | - Chenguang Sun
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China; Key Laboratory of RNA and Hematopoietic Regulation, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Yanan Mao
- Key Laboratory of Zoological Systematics and Evolution & State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fanqi Zhou
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China; Key Laboratory of RNA and Hematopoietic Regulation, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Yi Shao
- Key Laboratory of Zoological Systematics and Evolution & State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Liu
- Shantou University Medical College, Shantou 515041, China
| | - Jiayue Xu
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China; Key Laboratory of RNA and Hematopoietic Regulation, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Li Cheng
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China
| | - Daqi Yu
- Key Laboratory of Zoological Systematics and Evolution & State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pingping Li
- 923rd Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army, Guangxi 530021, China
| | - Ping Yi
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Chongqing Medical University (General Hospital), Chongqing 401120, China
| | - Jiahuan He
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China; Key Laboratory of RNA and Hematopoietic Regulation, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Guangfeng Geng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Qing Guo
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Yanmin Si
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China; Key Laboratory of RNA and Hematopoietic Regulation, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Hualu Zhao
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China; Key Laboratory of RNA and Hematopoietic Regulation, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Haipeng Li
- Chinese Academy of Sciences Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai 200031, China; CAS Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming 650223, China
| | - Graham L Banes
- Chinese Academy of Sciences Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai 200031, China; Wisconsin National Primate Research Center, University of Wisconsin Madison, 1220 Capitol Court, Madison, WI 53715, USA
| | - He Liu
- Beijing Key Laboratory of Captive Wildlife Technology, Beijing Zoo, Beijing 100044, China
| | - Yukio Nakamura
- Cell Engineering Division, RIKEN BioResource Research Center, Ibaraki 305-0074, Japan
| | - Ryo Kurita
- Department of Research and Development, Central Blood Institute, Japanese Red Cross Society, Tokyo 105-8521, Japan
| | - Yue Huang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China
| | - Xiaoshuang Wang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China; Key Laboratory of RNA and Hematopoietic Regulation, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Fang Wang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China; Key Laboratory of RNA and Hematopoietic Regulation, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Gang Fang
- NYU Shanghai, 1555 Century Avenue, Shanghai 20012, China; Department of Biology, 1009 Silver Center, New York University, New York, NY 10003, USA; School of Computer Science and Software Engineering, East China Normal University, Shanghai 200062, China
| | - James Douglas Engel
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Lihong Shi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China.
| | - Yong E Zhang
- Key Laboratory of Zoological Systematics and Evolution & State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; CAS Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming 650223, China; Chinese Institute for Brain Research, Beijing 102206, China.
| | - Jia Yu
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Chinese Academy of Medical Sciences (CAMS) & School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, China; Key Laboratory of RNA and Hematopoietic Regulation, Chinese Academy of Medical Sciences, Beijing 100005, China; State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China.
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Downes DJ, Beagrie RA, Gosden ME, Telenius J, Carpenter SJ, Nussbaum L, De Ornellas S, Sergeant M, Eijsbouts CQ, Schwessinger R, Kerry J, Roberts N, Shivalingam A, El-Sagheer A, Oudelaar AM, Brown T, Buckle VJ, Davies JOJ, Hughes JR. High-resolution targeted 3C interrogation of cis-regulatory element organization at genome-wide scale. Nat Commun 2021; 12:531. [PMID: 33483495 PMCID: PMC7822813 DOI: 10.1038/s41467-020-20809-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 12/16/2020] [Indexed: 01/30/2023] Open
Abstract
Chromosome conformation capture (3C) provides an adaptable tool for studying diverse biological questions. Current 3C methods generally provide either low-resolution interaction profiles across the entire genome, or high-resolution interaction profiles at limited numbers of loci. Due to technical limitations, generation of reproducible high-resolution interaction profiles has not been achieved at genome-wide scale. Here, to overcome this barrier, we systematically test each step of 3C and report two improvements over current methods. We show that up to 30% of reporter events generated using the popular in situ 3C method arise from ligations between two individual nuclei, but this noise can be almost entirely eliminated by isolating intact nuclei after ligation. Using Nuclear-Titrated Capture-C, we generate reproducible high-resolution genome-wide 3C interaction profiles by targeting 8055 gene promoters in erythroid cells. By pairing high-resolution 3C interaction calls with nascent gene expression we interrogate the role of promoter hubs and super-enhancers in gene regulation.
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Affiliation(s)
- Damien J Downes
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Robert A Beagrie
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Matthew E Gosden
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Jelena Telenius
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Stephanie J Carpenter
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Lea Nussbaum
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Sara De Ornellas
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, UK
| | - Martin Sergeant
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Chris Q Eijsbouts
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Ron Schwessinger
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Jon Kerry
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Nigel Roberts
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Arun Shivalingam
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, UK
| | - Afaf El-Sagheer
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, UK
| | - A Marieke Oudelaar
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Tom Brown
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, UK
| | - Veronica J Buckle
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - James O J Davies
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Jim R Hughes
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK.
- MRC WIMM Centre for Computational Biology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK.
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Reimer KA, Mimoso CA, Adelman K, Neugebauer KM. Co-transcriptional splicing regulates 3' end cleavage during mammalian erythropoiesis. Mol Cell 2021; 81:998-1012.e7. [PMID: 33440169 DOI: 10.1016/j.molcel.2020.12.018] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 12/07/2020] [Accepted: 12/10/2020] [Indexed: 12/11/2022]
Abstract
Pre-mRNA processing steps are tightly coordinated with transcription in many organisms. To determine how co-transcriptional splicing is integrated with transcription elongation and 3' end formation in mammalian cells, we performed long-read sequencing of individual nascent RNAs and precision run-on sequencing (PRO-seq) during mouse erythropoiesis. Splicing was not accompanied by transcriptional pausing and was detected when RNA polymerase II (Pol II) was within 75-300 nucleotides of 3' splice sites (3'SSs), often during transcription of the downstream exon. Interestingly, several hundred introns displayed abundant splicing intermediates, suggesting that splicing delays can take place between the two catalytic steps. Overall, splicing efficiencies were correlated among introns within the same transcript, and intron retention was associated with inefficient 3' end cleavage. Remarkably, a thalassemia patient-derived mutation introducing a cryptic 3'SS improved both splicing and 3' end cleavage of individual β-globin transcripts, demonstrating functional coupling between the two co-transcriptional processes as a determinant of productive gene output.
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Affiliation(s)
- Kirsten A Reimer
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA
| | - Claudia A Mimoso
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Karen Adelman
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Karla M Neugebauer
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA.
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40
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Kawamura S, Otani M, Miyamoto T, Abe J, Ihara R, Inawaka K, Fantel AG. Different effects of an N-phenylimide herbicide on heme biosynthesis between human and rat erythroid cells. Reprod Toxicol 2021; 99:27-38. [PMID: 33249232 DOI: 10.1016/j.reprotox.2020.11.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/28/2020] [Accepted: 11/22/2020] [Indexed: 01/10/2023]
Abstract
Rat developmental toxicity including embryolethality and teratogenicity (mainly ventricular septal defects and wavy ribs) were produced by S-53482, an N-phenylimide herbicide that inhibits protoporphyrinogen oxidase (PPO) common to chlorophyll and heme biosynthesis. The sequence of key biological events in the mode of action has been elucidated as follows: inhibition of PPO interferes with normal heme synthesis, which causes loss of blood cells leading to fetal anemia, embryolethality and the development of malformations. In this study we investigated whether the rat is a relevant model for the assessment of the human hazard of the herbicide. To study effects on heme biosynthesis, human erythroleukemia, human cord blood, and rat erythroleukemia cells were treated with the herbicide during red cell differentiation. Protoporphyrin IX, a marker of PPO inhibition, and heme were determined. We investigated whether synchronous maturation of primitive erythropoiesis, which can contribute to massive losses of embryonic blood, occurs in rats. The population of primitive erythroblasts was observed on gestational days 11 through 14. Heme production was suppressed in rat erythroid cells. In contrast, heme reduction was not seen in both human erythroid cells when PPO was inhibited. Rats underwent synchronous maturation in primitive erythropoiesis. Our results combined with epidemiological findings that patients with deficient PPO are not anemic led us to conclude that human erythroblasts are resistant to the herbicide. It is suggested that the rat would be an inappropriate model for assessing the developmental toxicity of S-53482 in humans as rats are specifically sensitive to PPO inhibition by the herbicide.
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Affiliation(s)
- Satoshi Kawamura
- Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., 1-98, Kasugade-naka 3-chome, Konohana-ku, Osaka, 554-8558, Japan.
| | - Mitsuhiro Otani
- Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., 1-98, Kasugade-naka 3-chome, Konohana-ku, Osaka, 554-8558, Japan
| | - Taiki Miyamoto
- Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., 1-98, Kasugade-naka 3-chome, Konohana-ku, Osaka, 554-8558, Japan
| | - Jun Abe
- Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., 1-98, Kasugade-naka 3-chome, Konohana-ku, Osaka, 554-8558, Japan
| | - Ryo Ihara
- Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., 1-98, Kasugade-naka 3-chome, Konohana-ku, Osaka, 554-8558, Japan
| | - Kunifumi Inawaka
- Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., 1-98, Kasugade-naka 3-chome, Konohana-ku, Osaka, 554-8558, Japan
| | - Alan G Fantel
- Department of Pediatrics, University of Washington, 1959 NE Pacific St. Box 366320, Seattle, WA 98195-6320, USA
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Abstract
PURPOSE OF REVIEW This review focuses on our current understanding of fate decisions in bipotent megakaryocyte-erythroid progenitors (MEPs). Although extensive research has been carried out over decades, our understanding of how MEP commit to the erythroid versus megakaryocyte fate remains unclear. RECENT FINDINGS We discuss the isolation of primary human MEP, and focus on gene expression patterns, epigenetics, transcription factors and extrinsic factors that have been implicated in MEP fate determination. We conclude with an overview of the open debates in the field of MEP biology. SUMMARY Understanding MEP fate is important because defects in megakaryocyte and erythrocyte development lead to disease states such as anaemia, thrombocytopenia and leukaemia. MEP also represent a model system for studying fundamental principles underlying cell fate decisions of bipotent and pluripotent progenitors, such that discoveries in MEP are broadly applicable to stem/progenitor cell biology.
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Affiliation(s)
- Nayoung Kwon
- Department of Cell Biology, Yale School of Medicine, 333 Cedar Street, New Haven, CT
- Yale Stem Cell Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT
| | - Evrett N. Thompson
- Department of Cell Biology, Yale School of Medicine, 333 Cedar Street, New Haven, CT
- Yale Stem Cell Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT
| | - Madeline Y. Mayday
- Yale Stem Cell Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT
- Department of Pathology, Yale School of Medicine, 333 Cedar Street, New Haven, CT
| | - Vanessa Scanlon
- Yale Stem Cell Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT
- Department of Laboratory Medicine, Yale School of Medicine, 333 Cedar Street, New Haven, CT
| | - Yi-Chien Lu
- Yale Stem Cell Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT
- Department of Pathology, Yale School of Medicine, 333 Cedar Street, New Haven, CT
| | - Diane S. Krause
- Department of Cell Biology, Yale School of Medicine, 333 Cedar Street, New Haven, CT
- Yale Stem Cell Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT
- Department of Pathology, Yale School of Medicine, 333 Cedar Street, New Haven, CT
- Department of Laboratory Medicine, Yale School of Medicine, 333 Cedar Street, New Haven, CT
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42
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Ducloux C, You B, Langelé A, Goupille O, Payen E, Chrétien S, Kadri Z. Enhanced Cell-Based Detection of Parvovirus B19V Infectious Units According to Cell Cycle Status. Viruses 2020; 12:v12121467. [PMID: 33353185 PMCID: PMC7766612 DOI: 10.3390/v12121467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/21/2020] [Accepted: 09/29/2020] [Indexed: 12/17/2022] Open
Abstract
Human parvovirus B19 (B19V) causes various human diseases, ranging from childhood benign infection to arthropathies, severe anemia and fetal hydrops, depending on the health state and hematological status of the patient. To counteract B19V blood-borne contamination, evaluation of B19 DNA in plasma pools and viral inactivation/removal steps are performed, but nucleic acid testing does not correctly reflect B19V infectivity. There is currently no appropriate cellular model for detection of infectious units of B19V. We describe here an improved cell-based method for detecting B19V infectious units by evaluating its host transcription. We evaluated the ability of various cell lines to support B19V infection. Of all tested, UT7/Epo cell line, UT7/Epo-STI, showed the greatest sensitivity to B19 infection combined with ease of performance. We generated stable clones by limiting dilution on the UT7/Epo-STI cell line with graduated permissiveness for B19V and demonstrated a direct correlation between infectivity and S/G2/M cell cycle stage. Two of the clones tested, B12 and E2, reached sensitivity levels higher than those of UT7/Epo-S1 and CD36+ erythroid progenitor cells. These findings highlight the importance of cell cycle status for sensitivity to B19V, and we propose a promising new straightforward cell-based method for quantifying B19V infectious units.
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Affiliation(s)
- Céline Ducloux
- Laboratoire Français du Fractionnement et des Biotechnologies (LFB), 3 Avenue des Tropiques, BP 305, Courtabœuf CEDEX, 91958 Les Ulis, France; (C.D.); (B.Y.); (A.L.)
| | - Bruno You
- Laboratoire Français du Fractionnement et des Biotechnologies (LFB), 3 Avenue des Tropiques, BP 305, Courtabœuf CEDEX, 91958 Les Ulis, France; (C.D.); (B.Y.); (A.L.)
| | - Amandine Langelé
- Laboratoire Français du Fractionnement et des Biotechnologies (LFB), 3 Avenue des Tropiques, BP 305, Courtabœuf CEDEX, 91958 Les Ulis, France; (C.D.); (B.Y.); (A.L.)
- Division of Innovative Therapies, UMR-1184, IMVA-HB and IDMIT Center, CEA, INSERM and Paris-Saclay University, F-92265 Fontenay-aux-Roses, France; (O.G.); (E.P.); (S.C.)
| | - Olivier Goupille
- Division of Innovative Therapies, UMR-1184, IMVA-HB and IDMIT Center, CEA, INSERM and Paris-Saclay University, F-92265 Fontenay-aux-Roses, France; (O.G.); (E.P.); (S.C.)
| | - Emmanuel Payen
- Division of Innovative Therapies, UMR-1184, IMVA-HB and IDMIT Center, CEA, INSERM and Paris-Saclay University, F-92265 Fontenay-aux-Roses, France; (O.G.); (E.P.); (S.C.)
| | - Stany Chrétien
- Division of Innovative Therapies, UMR-1184, IMVA-HB and IDMIT Center, CEA, INSERM and Paris-Saclay University, F-92265 Fontenay-aux-Roses, France; (O.G.); (E.P.); (S.C.)
| | - Zahra Kadri
- Division of Innovative Therapies, UMR-1184, IMVA-HB and IDMIT Center, CEA, INSERM and Paris-Saclay University, F-92265 Fontenay-aux-Roses, France; (O.G.); (E.P.); (S.C.)
- Correspondence:
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43
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Manabe E, Ito S, Ohno Y, Tanaka T, Naito Y, Sasaki N, Asakura M, Masuyama T, Ishihara M, Tsujino T. Reduced lifespan of erythrocytes in Dahl/Salt sensitive rats is the cause of the renal proximal tubule damage. Sci Rep 2020; 10:22023. [PMID: 33328561 PMCID: PMC7744793 DOI: 10.1038/s41598-020-79146-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 12/01/2020] [Indexed: 12/20/2022] Open
Abstract
We studied the mechanisms of anemia and the influence of anemia on renal pathology in Dahl/Salt Sensitive (Dahl/SS) rat, a model of cardio-renal-anemia syndrome. Erythrocyte lifespan was shortened and associated with decreased hemoglobin level in the Dahl/SS rats given high-salt diet. Serum haptoglobin decreased, reticulocytes increased, and erythropoiesis in the bone marrow and extramedullary hematopoiesis in the spleen was markedly stimulated by increased serum erythropoietin in them. As a mechanism of hemolysis, we investigated the incidence of eryptosis, suicidal death of erythrocytes. Eryptosis was increased, and red blood cell-derived microparticles, small particle which are generated in hemolytic disease, were also increased in Dahl/SS rats fed with high-salt diet. Deposition of hemosiderin and mitochondrial morphologic abnormality, a sign of ferroptosis, in proximal renal tubules was associated with intravascular hemolysis. Treatment with deferasirox, an oral iron chelator, reduced the renal proximal tubular injury and the glomerular sclerosis in Dahl/SS rats fed with high-salt diet. In conclusion, reduced half-life of erythrocytes induced by hemolysis is the major cause of anemia in Dahl/SS rat. Iron accumulation induced by hemolysis causes renal proximal tubule injury and accelerates renal damage in this model.
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Affiliation(s)
- Eri Manabe
- Department of Cardiovascular and Renal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
| | - Satoyasu Ito
- Division of Pharmaceutical Therapeutics, Department of Pharmacy, School of Pharmacy, Hyogo University of Health Sciences, Kobe, Hyogo, Japan
| | - Yoshiya Ohno
- Division of Immunobiology, Department of Pharmacy, School of Pharmacy, Hyogo University of Health Sciences, Kobe, Hyogo, Japan
| | - Toshiyuki Tanaka
- Division of Immunobiology, Department of Pharmacy, School of Pharmacy, Hyogo University of Health Sciences, Kobe, Hyogo, Japan
| | - Yoshiro Naito
- Department of Cardiovascular and Renal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Naoko Sasaki
- Division of Pharmaceutical Therapeutics, Department of Pharmacy, School of Pharmacy, Hyogo University of Health Sciences, Kobe, Hyogo, Japan
| | - Masanori Asakura
- Department of Cardiovascular and Renal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Tohru Masuyama
- Department of Cardiovascular and Renal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
- Hoshigaoka Medical Center, Japan Community Health Care Organization, Hirakata, Osaka, Japan
| | - Masaharu Ishihara
- Department of Cardiovascular and Renal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
| | - Takeshi Tsujino
- Department of Cardiovascular and Renal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan
- Division of Pharmaceutical Therapeutics, Department of Pharmacy, School of Pharmacy, Hyogo University of Health Sciences, Kobe, Hyogo, Japan
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Perron-Deshaies G, St-Louis P, Romero H, Scorza T. Impact of Erythropoietin Production by Erythroblastic Island Macrophages on Homeostatic Murine Erythropoiesis. Int J Mol Sci 2020; 21:ijms21238930. [PMID: 33255601 PMCID: PMC7728051 DOI: 10.3390/ijms21238930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 11/16/2022] Open
Abstract
Erythropoietin (EPO) is an essential hormone for erythropoiesis, protecting differentiating erythroblasts against apoptosis. EPO has been largely studied in stress or pathological conditions but its regulatory role in steady state erythropoiesis has been less documented. Herein, we report production of EPO by bone marrow-derived macrophages (BMDM) in vitro, and its further enhancement in BMDM conditioned with media from apoptotic cells. Confocal microscopy confirmed EPO production in erythroblastic island (EBI)-associated macrophages, and analysis of mice depleted of EBI macrophages by clodronate liposomes revealed drops in EPO levels in bone marrow (BM) cell lysates, and decreased percentages of EPO-responsive erythroblasts in the BM. We hypothesize that EBI macrophages are an in-situ source of EPO and sustain basal erythropoiesis in part through its secretion. To study this hypothesis, mice were injected with clodronate liposomes and were supplied with exogenous EPO (1-10 IU/mouse) to evaluate potential rescue of the deficiency in erythroid cells. Our results show that at doses of 5 and 10 IU, EPO significantly rescues BM steady state erythropoiesis in mice deficient of macrophages. We propose existence of a mechanism by which EBI macrophages secrete EPO in response to apoptotic erythroblasts, which is in turn controlled by the numbers of erythroid precursors generated.
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Affiliation(s)
- Genève Perron-Deshaies
- Département des Sciences Biologiques, Université du Québec à Montréal, Montreal, QC H3C 3P8, Canada; (G.P.-D.); (P.S.-L.); (H.R.)
| | - Philippe St-Louis
- Département des Sciences Biologiques, Université du Québec à Montréal, Montreal, QC H3C 3P8, Canada; (G.P.-D.); (P.S.-L.); (H.R.)
| | - Hugo Romero
- Département des Sciences Biologiques, Université du Québec à Montréal, Montreal, QC H3C 3P8, Canada; (G.P.-D.); (P.S.-L.); (H.R.)
- CHU Sainte-Justine Research Centre, Montreal, QC H3T 1C5, Canada
| | - Tatiana Scorza
- Département des Sciences Biologiques, Université du Québec à Montréal, Montreal, QC H3C 3P8, Canada; (G.P.-D.); (P.S.-L.); (H.R.)
- Correspondence: ; Tel.: +1-514-9873000 (ext. 1918)
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45
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Thornton N, Karamatic Crew V, Tilley L, Green CA, Tay CL, Griffiths RE, Singleton BK, Spring F, Walser P, Alattar AG, Jones B, Laundy R, Storry JR, Möller M, Wall L, Charlewood R, Westhoff CM, Lomas-Francis C, Yahalom V, Feick U, Seltsam A, Mayer B, Olsson ML, Anstee DJ. Disruption of the tumour-associated EMP3 enhances erythroid proliferation and causes the MAM-negative phenotype. Nat Commun 2020; 11:3569. [PMID: 32678083 PMCID: PMC7366909 DOI: 10.1038/s41467-020-17060-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 05/29/2020] [Indexed: 12/14/2022] Open
Abstract
The clinically important MAM blood group antigen is present on haematopoietic cells of all humans except rare MAM-negative individuals. Its molecular basis is unknown. By whole-exome sequencing we identify EMP3, encoding epithelial membrane protein 3 (EMP3), as a candidate gene, then demonstrate inactivating mutations in ten known MAM-negative individuals. We show that EMP3, a purported tumour suppressor in various solid tumours, is expressed in erythroid cells. Disruption of EMP3 by CRISPR/Cas9 gene editing in an immortalised human erythroid cell line (BEL-A2) abolishes MAM expression. We find EMP3 to associate with, and stabilise, CD44 in the plasma membrane. Furthermore, cultured erythroid progenitor cells from MAM-negative individuals show markedly increased proliferation and higher reticulocyte yields, suggesting an important regulatory role for EMP3 in erythropoiesis and control of cell production. Our data establish MAM as a new blood group system and demonstrate an interaction of EMP3 with the cell surface signalling molecule CD44.
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Affiliation(s)
- Nicole Thornton
- International Blood Group Reference Laboratory, NHS Blood and Transplant, Bristol, UK.
| | - Vanja Karamatic Crew
- International Blood Group Reference Laboratory, NHS Blood and Transplant, Bristol, UK
| | - Louise Tilley
- International Blood Group Reference Laboratory, NHS Blood and Transplant, Bristol, UK
| | - Carole A Green
- Bristol Institute for Transfusion Sciences, NHS Blood and Transplant and NIHR Blood and Transplant Unit in Red Cell Products, University of Bristol, Bristol, UK
| | - Chwen Ling Tay
- International Blood Group Reference Laboratory, NHS Blood and Transplant, Bristol, UK
| | - Rebecca E Griffiths
- Bristol Institute for Transfusion Sciences, NHS Blood and Transplant and NIHR Blood and Transplant Unit in Red Cell Products, University of Bristol, Bristol, UK
| | - Belinda K Singleton
- Bristol Institute for Transfusion Sciences, NHS Blood and Transplant and NIHR Blood and Transplant Unit in Red Cell Products, University of Bristol, Bristol, UK
| | - Frances Spring
- Bristol Institute for Transfusion Sciences, NHS Blood and Transplant and NIHR Blood and Transplant Unit in Red Cell Products, University of Bristol, Bristol, UK
| | - Piers Walser
- International Blood Group Reference Laboratory, NHS Blood and Transplant, Bristol, UK
| | - Abdul Ghani Alattar
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Benjamin Jones
- International Blood Group Reference Laboratory, NHS Blood and Transplant, Bristol, UK
| | - Rosalind Laundy
- International Blood Group Reference Laboratory, NHS Blood and Transplant, Bristol, UK
| | - Jill R Storry
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
- Department of Clinical Immunology and Transfusion Medicine, Office of Medical Services, Lund, Sweden
| | - Mattias Möller
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Lorna Wall
- Reference Laboratory, New Zealand Blood Service, Auckland, New Zealand
| | | | | | | | - Vered Yahalom
- Magen David Adom, National Blood Services, Ramat Gan, Israel
| | - Ute Feick
- Deutsches Rotes Kreuz, Blood Donor Service, Institute Bad Kreuznach, Bad Kreuznach, Germany
| | - Axel Seltsam
- German Red Cross Blood Service NSTOB, Institute Springe, Springe, Germany
| | - Beate Mayer
- Institute of Transfusion Medicine, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Martin L Olsson
- Division of Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
- Department of Clinical Immunology and Transfusion Medicine, Office of Medical Services, Lund, Sweden
| | - David J Anstee
- Bristol Institute for Transfusion Sciences, NHS Blood and Transplant and NIHR Blood and Transplant Unit in Red Cell Products, University of Bristol, Bristol, UK
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Yang L, Shivakumar P, Kinder J, Way SS, Donnelly B, Mourya R, Luo Z, Bezerra JA. Regulation of bile duct epithelial injury by hepatic CD71+ erythroid cells. JCI Insight 2020; 5:135751. [PMID: 32407296 PMCID: PMC7308060 DOI: 10.1172/jci.insight.135751] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 04/29/2020] [Indexed: 02/06/2023] Open
Abstract
Extramedullary hematopoietic cells are present in the liver of normal neonates in the first few days of life and persist in infants with biliary atresia. Based on a previous report that liver genes are enriched by erythroid pathways, we examined the liver gene expression pattern at diagnosis and found the top 5 enriched pathways are related to erythrocyte pathobiology in children who survived with the native liver beyond 2 years of age. Using immunostaining, anti-CD71 antibodies identified CD71+ erythroid cells among extramedullary hematopoietic cells in the livers at the time of diagnosis. In mechanistic experiments, the preemptive antibody depletion of hepatic CD71+ erythroid cells in neonatal mice rendered them resistant to rhesus rotavirus-induced (RRV-induced) biliary atresia. The depletion of CD71+ erythroid cells increased the number of effector lymphocytes and delayed the RRV infection of livers and extrahepatic bile ducts. In coculture experiments, CD71+ erythroid cells suppressed the activation of hepatic mononuclear cells. These data uncover an immunoregulatory role for CD71+ erythroid cells in the neonatal liver.
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Affiliation(s)
- Li Yang
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Division of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Pranavkumar Shivakumar
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jeremy Kinder
- Division of Infectious Diseases and Perinatal Institute and
| | - Sing Sing Way
- Division of Infectious Diseases and Perinatal Institute and
| | - Bryan Donnelly
- Division of Pediatric and Thoracic Surgery, CCHMC, Ohio, USA
| | - Reena Mourya
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Zhenhua Luo
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou City, Guangdong, China
| | - Jorge A. Bezerra
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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47
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Wang L, Zheng M, Wang Y, Yuan L, Yu C, Cui J, Zhang S. Activation of integrated stress response and disordered iron homeostasis upon combined exposure to cadmium and PCB77. J Hazard Mater 2020; 389:121833. [PMID: 31837937 DOI: 10.1016/j.jhazmat.2019.121833] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 12/03/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
Both cadmium and polychlorinated biphenyls (PCBs) can induce diverse detrimental effects on human health. Though these compounds co-exist in various environmental contexts and in the human body, studies on their joint toxicities are limited. Activation of the integrated stress response (ISR) and iron homeostasis are crucial for erythropoiesis. The impact of cadmium and PCBs on the ISR activation and iron homeostasis of erythroid progenitors is unknown. We investigated the adverse effects and mechanisms of CdCl2 and PCB77 on HEL cells, a human cell model of erythroid progenitors. We found that at high concentrations of CdCl2 and PCB77, cytotoxicity and apoptosis of HEL cells were mainly induced by CdCl2. At low concentrations of CdCl2 and PCB77, iron homeostasis inside HEL cells was disturbed by both of these two compounds. Both CdCl2 and PCB77 activated ISR to combat stress, which at high concentration was mainly induced by ROS, leading to apoptosis, and at low concentration was partly induced by disordered iron homeostasis. The patterns of ISR activation and iron homeostasis disorder were different between CdCl2 and PCB77. Their combined exposure exhibited synergetic effect on activating ISR but antagonistic effect on disturbing iron homeostasis. Our study demonstrates some previously unrecognized harmful characteristics and mechanisms of cadmium and PCB77.
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Affiliation(s)
- Lixin Wang
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Pollution Prevention Biotechnology Laboratory of Hebei Province, Shijiazhuang, 050018, China
| | - Miaomiao Zheng
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Pollution Prevention Biotechnology Laboratory of Hebei Province, Shijiazhuang, 050018, China
| | - Yingxue Wang
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Pollution Prevention Biotechnology Laboratory of Hebei Province, Shijiazhuang, 050018, China
| | - Lin Yuan
- Clinical Lab, Weihai Central Hospital, Weihai, 264400, China
| | - Chengyong Yu
- Clinical Lab, Weihai Central Hospital, Weihai, 264400, China
| | - Jiansheng Cui
- College of Environmental Science and Engineering, Hebei University of Science and Technology, Pollution Prevention Biotechnology Laboratory of Hebei Province, Shijiazhuang, 050018, China.
| | - Shuping Zhang
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
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Ulyanova T, Georgolopoulos G, Papayannopoulou T. Reappraising the role of α5 integrin and the microenvironmental support in stress erythropoiesis. Exp Hematol 2019; 81:16-31.e4. [PMID: 31887343 DOI: 10.1016/j.exphem.2019.12.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 11/12/2019] [Revised: 12/13/2019] [Accepted: 12/15/2019] [Indexed: 02/06/2023]
Abstract
We previously studied the role of β1 integrin and some of its different α partners relevant to erythropoiesis. Although clear and consistent answers regarding the role of α4β1 (VLA-4) were evident, the role of its companion integrin α5β1 (VLA-5) was clouded by inconsistent outcomes in all prior publications. Furthermore, the functional consequences of integrin deficiencies only in microenvironmental (ME) cells supporting erythroid cell expansion and maturation post stress have never been explored. In the study described here, we created several additional mouse models in the aim of addressing unanswered questions regarding functional consequences of single or combined integrin deficiencies in erythroid cells or only in ME supporting cells. Our novel and expansive data solidified the intrinsic requirement of both α4 and α5 integrins in erythroid cells for their proliferative expansion and maturation in response to stress; α5 integrin alone, deleted either early in all hematopoietic cells or only in erythroid cell, has only a redundant role in proliferative expansion and is dispensable for erythroid maturation. By contrast, α4 integrin, on its own, exerts a dominant effect on timely and optimal erythroid maturation. Deficiency of both α4 and α5 integrins in ME cells, including macrophages, does not negatively influence stress response by normal erythroid cells, in great contrast to the effect of ME cells deficient in all β1 integrins. Collectively the present data offer deeper insight into the coordination of different β1 integrin functional activities in erythroid cells or in ME cells for optimal erythroid stress response.
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Affiliation(s)
- Tatyana Ulyanova
- Division of Hematology, Department of Medicine, University of Washington, Seattle, Washington, USA
| | | | - Thalia Papayannopoulou
- Division of Hematology, Department of Medicine, University of Washington, Seattle, Washington, USA.
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49
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Yu X, Azzo A, Bilinovich SM, Li X, Dozmorov M, Kurita R, Nakamura Y, Williams DC, Ginder GD. Disruption of the MBD2-NuRD complex but not MBD3-NuRD induces high level HbF expression in human adult erythroid cells. Haematologica 2019; 104:2361-2371. [PMID: 31004025 PMCID: PMC6959176 DOI: 10.3324/haematol.2018.210963] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 04/15/2019] [Indexed: 02/06/2023] Open
Abstract
As high fetal hemoglobin levels ameliorate the underlying pathophysiological defects in sickle cell anemia and beta (β)-thalassemia, understanding the mechanisms that enforce silencing of fetal hemoglobin postnatally offers the promise of effective molecular therapy. Depletion of the Nucleosome Remodeling and Deacetylase complex member MBD2 causes a 10-20-fold increase in γ-globin gene expression in adult β-globin locus yeast artificial chromosome transgenic mice. To determine the effect of MBD2 depletion in human erythroid cells, genome editing technology was utilized to knockout MBD2 in Human Umbilical cord Derived Erythroid Progenitor-2 cells resulting in γ/γ+β mRNA levels of approximately 50% and approximately 40% fetal hemoglobin by high performance liquid chromatography. In contrast, MBD3 knockout had no appreciable effect on γ-globin expression. Knockdown of MBD2 in primary adult erythroid cells consistently increased γ/γ+β mRNA ratios by approximately 10-fold resulting in approximately 30-40% γ/γ+β mRNA levels and a corresponding increase in γ-globin protein. MBD2 exerts its repressive effects through recruitment of the chromatin remodeler CHD4 via a coiled-coil domain, and the histone deacetylase core complex via an intrinsically disordered region. Enforced expression of wild-type MBD2 in MBD2 knockout cells caused a 5-fold decrease in γ-globin mRNA while neither the coiled-coil mutant nor the intrinsically disordered region mutant MBD2 proteins had an inhibitory effect. Co-immunoprecipitation assays showed that the coiled-coil and intrinsically disorder region mutations disrupt complex formation by dissociating the CHD4 and the histone deacetylase core complex components, respectively. These results establish the MBD2 Nucleosome Remodeling and Deacetylase complex as a major silencer of fetal hemoglobin in human erythroid cells and point to the coiled-coil and intrinsically disordered region of MBD2 as potential therapeutic targets.
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Affiliation(s)
- Xiaofei Yu
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, USA
| | - Alexander Azzo
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, USA
- Center for Clinical and Translational Research, PhD Program in Cancer and Molecular Medicine, Virginia Commonwealth University, Richmond, VA, USA
- MD-PhD Program, Virginia Commonwealth University, Richmond, VA, USA
| | - Stephanie M Bilinovich
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Xia Li
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, USA
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA, USA
| | - Mikhail Dozmorov
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Ryo Kurita
- Cell Engineering Division, RIKEN BioResource Center, Tsukuba, Ibaraki, Japan
| | - Yukio Nakamura
- Cell Engineering Division, RIKEN BioResource Center, Tsukuba, Ibaraki, Japan
| | - David C Williams
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Gordon D Ginder
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, USA
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA, USA
- Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA, USA
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50
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Brumbaugh J, Kim IS, Ji F, Huebner AJ, Di Stefano B, Schwarz BA, Charlton J, Coffey A, Choi J, Walsh RM, Schindler JW, Anselmo A, Meissner A, Sadreyev RI, Bernstein BE, Hock H, Hochedlinger K. Inducible histone K-to-M mutations are dynamic tools to probe the physiological role of site-specific histone methylation in vitro and in vivo. Nat Cell Biol 2019; 21:1449-1461. [PMID: 31659274 PMCID: PMC6858577 DOI: 10.1038/s41556-019-0403-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 09/12/2019] [Indexed: 12/24/2022]
Abstract
Development and differentiation are associated with profound changes to histone modifications, yet their in vivo function remains incompletely understood. Here, we generated mouse models expressing inducible histone H3 lysine-to-methionine (K-to-M) mutants, which globally inhibit methylation at specific sites. Mice expressing H3K36M developed severe anaemia with arrested erythropoiesis, a marked haematopoietic stem cell defect, and rapid lethality. By contrast, mice expressing H3K9M survived up to a year and showed expansion of multipotent progenitors, aberrant lymphopoiesis and thrombocytosis. Additionally, some H3K9M mice succumbed to aggressive T cell leukaemia/lymphoma, while H3K36M mice exhibited differentiation defects in testis and intestine. Mechanistically, induction of either mutant reduced corresponding histone trimethylation patterns genome-wide and altered chromatin accessibility as well as gene expression landscapes. Strikingly, discontinuation of transgene expression largely restored differentiation programmes. Our work shows that individual chromatin modifications are required at several specific stages of differentiation and introduces powerful tools to interrogate their roles in vivo.
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Affiliation(s)
- Justin Brumbaugh
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
- Harvard Medical School, Boston, MA, USA
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado-Boulder, Boulder, CO, USA
| | - Ik Soo Kim
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA
- Department of Pathology, Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Fei Ji
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Aaron J Huebner
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Bruno Di Stefano
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Benjamin A Schwarz
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Jocelyn Charlton
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Department of Genome Regulation, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Amy Coffey
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Jiho Choi
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Ryan M Walsh
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Jeffrey W Schindler
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Anthony Anselmo
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Alexander Meissner
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
- Department of Genome Regulation, Max Planck Institute for Molecular Genetics, Berlin, Germany
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Ruslan I Sadreyev
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Department of Pathology, Harvard Medical School, Boston, MA, USA
| | - Bradley E Bernstein
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA
- Department of Pathology, Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Hanno Hock
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA.
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA.
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
- Harvard Medical School, Boston, MA, USA.
| | - Konrad Hochedlinger
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA.
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA.
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA.
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA.
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
- Harvard Medical School, Boston, MA, USA.
- Department of Genetics, Harvard Medical School, Boston, MA, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
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