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Wen Y, Zhao J, Zhang R, Liu F, Chen X, Wu D, Wang M, Liu C, Su P, Meng P, Zhang Y, Gao X, Wang L, Wang H, Zhou J. Identification and characterization of human hematopoietic mesoderm. SCIENCE CHINA. LIFE SCIENCES 2024; 67:320-331. [PMID: 37870675 DOI: 10.1007/s11427-022-2374-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/17/2023] [Indexed: 10/24/2023]
Abstract
The embryonic mesoderm comprises heterogeneous cell subpopulations with distinct lineage biases. It is unclear whether a bias for the human hematopoietic lineage emerges at this early developmental stage. In this study, we integrated single-cell transcriptomic analyses of human mesoderm cells from embryonic stem cells and embryos, enabling us to identify and define the molecular features of human hematopoietic mesoderm (HM) cells biased towards hematopoietic lineages. We discovered that BMP4 plays an essential role in HM specification and can serve as a marker for HM cells. Mechanistically, BMP4 acts as a downstream target of HDAC1, which modulates the expression of BMP4 by deacetylating its enhancer. Inhibition of HDAC significantly enhances HM specification and promotes subsequent hematopoietic cell differentiation. In conclusion, our study identifies human HM cells and describes new mechanisms for human hematopoietic development.
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Affiliation(s)
- Yuqi Wen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China
| | - Jingjing Zhao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China
| | - Runqing Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China
| | - Fan Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China
| | - Xiaoyuan Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China
| | - Dan Wu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China
| | - Mengge Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China
| | - Cuicui Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China
| | - Pei Su
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China
| | - Panpan Meng
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Yiyue Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Xin Gao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China
| | - Lu Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China
| | - Hongtao Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China.
- Tianjin Institutes of Health Science, Tianjin, 301600, China.
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China.
| | - Jiaxi Zhou
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China.
- Tianjin Institutes of Health Science, Tianjin, 301600, China.
- CAMS Center for Stem Cell Medicine, PUMC Department of Stem Cell and Regenerative Medicine, Tianjin, 300020, China.
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Mimicry of embryonic circulation enhances the hoxa hemogenic niche and human blood development. Cell Rep 2022; 40:111339. [PMID: 36103836 DOI: 10.1016/j.celrep.2022.111339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 05/11/2022] [Accepted: 08/19/2022] [Indexed: 11/22/2022] Open
Abstract
Precursors of the adult hematopoietic system arise from the aorta-gonad-mesonephros (AGM) region shortly after the embryonic circulation is established. Here, we develop a microfluidic culture system to mimic the primitive embryonic circulation and address the hypothesis that circulatory flow and shear stress enhance embryonic blood development. Embryonic (HOXA+) hematopoiesis was derived from human pluripotent stem cells and induced from mesoderm by small-molecule manipulation of TGF-β and WNT signaling (SB/CHIR). Microfluidic and orbital culture promoted the formation of proliferative CD34+RUNX1C-GFP+SOX17-mCHERRY+ precursor cells that were released into the artificial circulation from SOX17+ arterial-like structures. Single-cell transcriptomic analysis delineated extra-embryonic (yolk sac) and HOXA+ embryonic blood differentiation pathways. SB/CHIR and circulatory flow enhance hematopoiesis by the formation of proliferative HOXA+RUNX1C+CD34+ precursor cells that differentiate into monocyte/macrophage, granulocyte, erythrocyte, and megakaryocyte progenitors.
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3
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Wang X, Guo H, Yu F, Zhang H, Peng Y, Wang C, Wei G, Yan J. Keratin5-cytoskeleton-BMP4 network regulates cell phenotype conversions during cardiac regeneration. Exp Cell Res 2022; 418:113272. [DOI: 10.1016/j.yexcr.2022.113272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 06/26/2022] [Accepted: 06/30/2022] [Indexed: 01/09/2023]
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Gupta S, Kawaguchi R, Heinrichs E, Gallardo S, Castellanos S, Mandric I, Novitch BG, Butler SJ. In vitro atlas of dorsal spinal interneurons reveals Wnt signaling as a critical regulator of progenitor expansion. Cell Rep 2022; 40:111119. [PMID: 35858555 PMCID: PMC9414195 DOI: 10.1016/j.celrep.2022.111119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 04/12/2022] [Accepted: 06/28/2022] [Indexed: 11/03/2022] Open
Abstract
Restoring sensation after injury or disease requires a reproducible method for generating large quantities of bona fide somatosensory interneurons. Toward this goal, we assess the mechanisms by which dorsal spinal interneurons (dIs; dI1-dI6) can be derived from mouse embryonic stem cells (mESCs). Using two developmentally relevant growth factors, retinoic acid (RA) and bone morphogenetic protein (BMP) 4, we recapitulate the complete in vivo program of dI differentiation through a neuromesodermal intermediate. Transcriptional profiling reveals that mESC-derived dIs strikingly resemble endogenous dIs, with the correct molecular and functional signatures. We further demonstrate that RA specifies dI4-dI6 fates through a default multipotential state, while the addition of BMP4 induces dI1-dI3 fates and activates Wnt signaling to enhance progenitor proliferation. Constitutively activating Wnt signaling permits the dramatic expansion of neural progenitor cultures. These cultures retain the capacity to differentiate into diverse populations of dIs, thereby providing a method of increasing neuronal yield.
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Affiliation(s)
- Sandeep Gupta
- Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| | - Riki Kawaguchi
- Department of Psychiatry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Eric Heinrichs
- Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Genetics and Genomics Graduate Program, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Salena Gallardo
- Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Interdepartmental Graduate Program, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Stephanie Castellanos
- Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA; CIRM Bridges to Research Program, California State University, Northridge, Los Angeles, CA, USA
| | - Igor Mandric
- Department of Computer Science, Samueli School of Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Bennett G Novitch
- Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA; Intellectual & Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Samantha J Butler
- Department of Neurobiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA; Intellectual & Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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5
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BMP2/SMAD pathway activation in JAK2/p53-mutant megakaryocyte/erythroid progenitors promotes leukemic transformation. Blood 2022; 139:3630-3646. [PMID: 35421216 PMCID: PMC9728578 DOI: 10.1182/blood.2021014465] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 03/24/2022] [Indexed: 12/15/2022] Open
Abstract
Leukemic transformation (LT) of myeloproliferative neoplasm (MPN) has a dismal prognosis and is largely fatal. Mutational inactivation of TP53 is the most common somatic event in LT; however, the mechanisms by which TP53 mutations promote LT remain unresolved. Using an allelic series of mouse models of Jak2/Trp53 mutant MPN, we identify that only biallelic inactivation of Trp53 results in LT (to a pure erythroleukemia [PEL]). This PEL arises from the megakaryocyte-erythroid progenitor population. Importantly, the bone morphogenetic protein 2/SMAD pathway is aberrantly activated during LT and results in abnormal self-renewal of megakaryocyte-erythroid progenitors. Finally, we identify that Jak2/Trp53 mutant PEL is characterized by recurrent copy number alterations and DNA damage. Using a synthetic lethality strategy, by targeting active DNA repair pathways, we show that this PEL is highly sensitive to combination WEE1 and poly(ADP-ribose) polymerase inhibition. These observations yield new mechanistic insights into the process of p53 mutant LT and offer new, clinically translatable therapeutic approaches.
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6
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Hadland B, Varnum-Finney B, Dozono S, Dignum T, Nourigat-McKay C, Heck AM, Ishida T, Jackson DL, Itkin T, Butler JM, Rafii S, Trapnell C, Bernstein ID. Engineering a niche supporting hematopoietic stem cell development using integrated single-cell transcriptomics. Nat Commun 2022; 13:1584. [PMID: 35332125 PMCID: PMC8948249 DOI: 10.1038/s41467-022-28781-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 02/09/2022] [Indexed: 12/22/2022] Open
Abstract
Hematopoietic stem cells (HSCs) develop from hemogenic endothelium within embryonic arterial vessels such as the aorta of the aorta-gonad-mesonephros region (AGM). To identify the signals responsible for HSC formation, here we use single cell RNA-sequencing to simultaneously analyze the transcriptional profiles of AGM-derived cells transitioning from hemogenic endothelium to HSCs, and AGM-derived endothelial cells which provide signals sufficient to support HSC maturation and self-renewal. Pseudotemporal ordering reveals dynamics of gene expression during the hemogenic endothelium to HSC transition, identifying surface receptors specifically expressed on developing HSCs. Transcriptional profiling of niche endothelial cells identifies corresponding ligands, including those signaling to Notch receptors, VLA-4 integrin, and CXCR4, which, when integrated in an engineered platform, are sufficient to support the generation of engrafting HSCs. These studies provide a transcriptional map of the signaling interactions necessary for the development of HSCs and advance the goal of engineering HSCs for therapeutic applications.
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Affiliation(s)
- Brandon Hadland
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA.
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, 98105, USA.
| | - Barbara Varnum-Finney
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Stacey Dozono
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Tessa Dignum
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Cynthia Nourigat-McKay
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Adam M Heck
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Takashi Ishida
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Dana L Jackson
- Department of Genome Sciences, University of Washington School of Medicine, Seattle, WA, 98105, USA
| | - Tomer Itkin
- Department of Genetic Medicine, Ansary Stem Cell Institute, Howard Hughes Medical Institute, Weill Cornell Medical College, New York, NY, 10021, USA
| | - Jason M Butler
- Center for Discovery and Innovation, Hackensack University Medical Center, Nutley, NJ, 07110, USA
| | - Shahin Rafii
- Department of Genetic Medicine, Ansary Stem Cell Institute, Howard Hughes Medical Institute, Weill Cornell Medical College, New York, NY, 10021, USA
| | - Cole Trapnell
- Department of Genome Sciences, University of Washington School of Medicine, Seattle, WA, 98105, USA
| | - Irwin D Bernstein
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, 98105, USA
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7
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Howard AGA, Nguyen AC, Tworig J, Ravisankar P, Singleton EW, Li C, Kotzur G, Waxman JS, Uribe RA. Elevated Hoxb5b Expands Vagal Neural Crest Pool and Blocks Enteric Neuronal Development in Zebrafish. Front Cell Dev Biol 2022; 9:803370. [PMID: 35174164 PMCID: PMC8841348 DOI: 10.3389/fcell.2021.803370] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 12/13/2021] [Indexed: 11/13/2022] Open
Abstract
Neural crest cells (NCCs) are a migratory, transient, and multipotent stem cell population essential to vertebrate embryonic development, contributing to numerous cell lineages in the adult organism. While great strides have been made in elucidating molecular and cellular events that drive NCC specification, comprehensive knowledge of the genetic factors that orchestrate NCC developmental programs is still far from complete. We discovered that elevated Hoxb5b levels promoted an expansion of zebrafish NCCs, which persisted throughout multiple stages of development. Correspondingly, elevated Hoxb5b also specifically expanded expression domains of the vagal NCC markers foxd3 and phox2bb. Increases in NCCs were most apparent after pulsed ectopic Hoxb5b expression at early developmental stages, rather than later during differentiation stages, as determined using a novel transgenic zebrafish line. The increase in vagal NCCs early in development led to supernumerary Phox2b+ enteric neural progenitors, while leaving many other NCC-derived tissues without an overt phenotype. Surprisingly, these NCC-derived enteric progenitors failed to expand properly into sufficient quantities of enterically fated neurons and stalled in the gut tissue. These results suggest that while Hoxb5b participates in vagal NCC development as a driver of progenitor expansion, the supernumerary, ectopically localized NCC fail to initiate expansion programs in timely fashion in the gut. All together, these data point to a model in which Hoxb5b regulates NCCs both in a tissue specific and temporally restricted manner.
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Affiliation(s)
| | - Aaron C. Nguyen
- BioSciences Department, Rice University, Houston, TX, United States
| | - Joshua Tworig
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, United States
| | - Priya Ravisankar
- Molecular Cardiovascular Biology Division, Cincinnati Children’s Hospital Medical Center and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Allen Institute of Immunology, Seattle, WA, United States
| | | | - Can Li
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, United States
| | - Grayson Kotzur
- BioSciences Department, Rice University, Houston, TX, United States
| | - Joshua S. Waxman
- Molecular Cardiovascular Biology Division, Cincinnati Children’s Hospital Medical Center and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Rosa A. Uribe
- BioSciences Department, Rice University, Houston, TX, United States
- *Correspondence: Rosa A. Uribe,
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van der Weele CM, Jeffery WR. Cavefish cope with environmental hypoxia by developing more erythrocytes and overexpression of hypoxia-inducible genes. eLife 2022; 11:69109. [PMID: 34984980 PMCID: PMC8765751 DOI: 10.7554/elife.69109] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 12/31/2021] [Indexed: 12/24/2022] Open
Abstract
Dark caves lacking primary productivity can expose subterranean animals to hypoxia. We used the surface-dwelling (surface fish) and cave-dwelling (cavefish) morphs of Astyanax mexicanus as a model for understanding the mechanisms of hypoxia tolerance in the cave environment. Primitive hematopoiesis, which is restricted to the posterior lateral mesoderm in other teleosts, also occurs in the anterior lateral mesoderm in Astyanax, potentially pre-adapting surface fish for hypoxic cave colonization. Cavefish have enlarged both hematopoietic domains and develop more erythrocytes than surface fish, which are required for normal development in both morphs. Laboratory-induced hypoxia suppresses growth in surface fish but not in cavefish. Both morphs respond to hypoxia by overexpressing hypoxia-inducible factor 1 (hif1) pathway genes, and some hif1 genes are constitutively upregulated in normoxic cavefish to similar levels as in hypoxic surface fish. We conclude that cavefish cope with hypoxia by increasing erythrocyte development and constitutive hif1 gene overexpression.
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Affiliation(s)
| | - William R Jeffery
- Department of Biology, University of Maryland, College Park, United States
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9
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Foley T, Lohnes D. Cdx regulates gene expression through PRC2-mediated epigenetic mechanisms. Dev Biol 2021; 483:22-33. [PMID: 34973175 DOI: 10.1016/j.ydbio.2021.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 12/21/2021] [Accepted: 12/23/2021] [Indexed: 11/03/2022]
Abstract
The extra-embryonic yolk sac contains adjacent layers of mesoderm and visceral endoderm. The mesodermal layer serves as the first site of embryonic hematopoiesis, while the visceral endoderm provides a means of exchanging nutrients and waste until the development of the chorioallantoic placenta. While defects in chorioallantoic fusion and yolk sac hematopoiesis have been described in Cdx mutant mouse models, little is known about the gene targets and molecular mechanisms through which Cdx members regulate these processes. To this end, we used RNA-seq to examine Cdx-dependent gene expression changes in the yolk sac. We find that loss of Cdx function impacts the expression of genes involved in yolk sac hematopoiesis, as previously described, as well as novel Cdx2 target genes. In addition, we observed Cdx-dependent changes in PRC2 subunit expression accompanied by altered H3K27me3 deposition at a subset of Cdx target genes as early as E7.5 in the embryo proper. This study identifies additional Cdx target genes and provides further evidence for Cdx-dependent epigenetic regulation of gene expression in the early embryo, and that this regulation is required to maintain gene expression programs in the extra-embryonic yolk sac at later developmental stages.
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Affiliation(s)
- Tanya Foley
- Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario, Canada, K1H 8M5.
| | - David Lohnes
- Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario, Canada, K1H 8M5.
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10
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Wiesinger A, Boink GJJ, Christoffels VM, Devalla HD. Retinoic acid signaling in heart development: Application in the differentiation of cardiovascular lineages from human pluripotent stem cells. Stem Cell Reports 2021; 16:2589-2606. [PMID: 34653403 PMCID: PMC8581056 DOI: 10.1016/j.stemcr.2021.09.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 09/16/2021] [Accepted: 09/17/2021] [Indexed: 11/29/2022] Open
Abstract
Retinoic acid (RA) signaling plays an important role during heart development in establishing anteroposterior polarity, formation of inflow and outflow tract progenitors, and growth of the ventricular compact wall. RA is also utilized as a key ingredient in protocols designed for generating cardiac cell types from pluripotent stem cells (PSCs). This review discusses the role of RA in cardiogenesis, currently available protocols that employ RA for differentiation of various cardiovascular lineages, and plausible transcriptional mechanisms underlying this fate specification. These insights will inform further development of desired cardiac cell types from human PSCs and their application in preclinical and clinical research.
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Affiliation(s)
- Alexandra Wiesinger
- Department of Medical Biology, Amsterdam University Medical Centers, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - Gerard J J Boink
- Department of Medical Biology, Amsterdam University Medical Centers, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Cardiology, Amsterdam University Medical Centers, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - Vincent M Christoffels
- Department of Medical Biology, Amsterdam University Medical Centers, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - Harsha D Devalla
- Department of Medical Biology, Amsterdam University Medical Centers, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands.
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11
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Tsuruda M, Morino-Koga S, Ogawa M. Bone morphogenetic protein 4 differently promotes distinct VE-cadherin + precursor stages during the definitive hematopoietic development from embryonic stem cell-derived mesodermal cells. Exp Hematol 2021; 103:40-51.e7. [PMID: 34464660 DOI: 10.1016/j.exphem.2021.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 08/04/2021] [Accepted: 08/23/2021] [Indexed: 11/30/2022]
Abstract
Definitive hematopoietic cells develop from fetal liver kinase 1 (Flk1)+ mesodermal cells during the in vitro differentiation of mouse embryonic stem cells (ESCs). VE-cadherin+CD41-CD45-(V+41-45-) hemogenic endothelial cells (HECs) and VE-cadherin+CD41+CD45- (V+41+45-) cells mediate the definitive hematopoietic development from Flk1+ cells. Bone morphogenetic protein 4 (BMP4) is known to be essential for the formation of mesoderm. However, the role of BMP4 in differentiation of the VE-cadherin+ definitive hematopoietic precursors from the mesoderm has been elusive. We addressed this issue using a co-aggregation culture of ESC-derived Flk1+ cells with OP9 stromal cells. This culture method induced V+41-45- cells, V+41+45- cells, and CD45+ cells from Flk1+ cells. V+41+45- cells possessed potential for erythromyeloid and T-lymphoid differentiation. When Flk1+ cells were cultured in the presence of a high concentration of BMP4, the generation of V+41-45- cells was enhanced. The increase in V+41-45- cells led to the subsequent increase in V+41+45- and CD45+ cells. The addition of BMP4 also increased hematopoietic colony-forming cells of various lineages. Furthermore, BMP4 promoted the expansion of V+41+45- cells independently of the preceding V+41-45- cell stage. These results suggest that BMP4 has promotive effects on the differentiation of V+41-45- HECs from Flk1+ mesodermal cells and the subsequent proliferation of V+41+45- hematopoietic precursors. These findings may provide insights for establishing a culture system to induce definitive hematopoietic stem cells from ESCs.
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Affiliation(s)
- Mariko Tsuruda
- Department of Cell Differentiation, Institute of Molecular Embryology and Genetics, Kumamoto University, Chuo-ku, Kumamoto, Japan
| | - Saori Morino-Koga
- Department of Cell Differentiation, Institute of Molecular Embryology and Genetics, Kumamoto University, Chuo-ku, Kumamoto, Japan
| | - Minetaro Ogawa
- Department of Cell Differentiation, Institute of Molecular Embryology and Genetics, Kumamoto University, Chuo-ku, Kumamoto, Japan.
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12
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Ramakrishnan AB, Chen L, Burby PE, Cadigan KM. Wnt target enhancer regulation by a CDX/TCF transcription factor collective and a novel DNA motif. Nucleic Acids Res 2021; 49:8625-8641. [PMID: 34358319 PMCID: PMC8421206 DOI: 10.1093/nar/gkab657] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 07/10/2021] [Accepted: 07/23/2021] [Indexed: 01/01/2023] Open
Abstract
Transcriptional regulation by Wnt signalling is primarily thought to be accomplished by a complex of β-catenin and TCF family transcription factors (TFs). Although numerous studies have suggested that additional TFs play roles in regulating Wnt target genes, their mechanisms of action have not been investigated in detail. We characterised a Wnt-responsive element (WRE) downstream of the Wnt target gene Axin2 and found that TCFs and Caudal type homeobox (CDX) proteins were required for its activation. Using a new separation-of-function TCF mutant, we found that WRE activity requires the formation of a TCF/CDX complex. Our systematic mutagenesis of this enhancer identified other sequences essential for activation by Wnt signalling, including several copies of a novel CAG DNA motif. Computational and experimental evidence indicates that the TCF/CDX/CAG mode of regulation is prevalent in multiple WREs. Put together, our results demonstrate the complex nature of cis- and trans- interactions required for signal-dependent enhancer activity.
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Affiliation(s)
| | - Lisheng Chen
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109 USA
| | - Peter E Burby
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109 USA
| | - Ken M Cadigan
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109 USA
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13
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Tsujimoto H, Kasahara T, Sueta SI, Araoka T, Sakamoto S, Okada C, Mae SI, Nakajima T, Okamoto N, Taura D, Nasu M, Shimizu T, Ryosaka M, Li Z, Sone M, Ikeya M, Watanabe A, Osafune K. A Modular Differentiation System Maps Multiple Human Kidney Lineages from Pluripotent Stem Cells. Cell Rep 2021; 31:107476. [PMID: 32268094 DOI: 10.1016/j.celrep.2020.03.040] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 01/17/2020] [Accepted: 03/13/2020] [Indexed: 02/08/2023] Open
Abstract
Recent studies using human pluripotent stem cells (hPSCs) have developed protocols to induce kidney-lineage cells and reconstruct kidney organoids. However, the separate generation of metanephric nephron progenitors (NPs), mesonephric NPs, and ureteric bud (UB) cells, which constitute embryonic kidneys, in in vitro differentiation culture systems has not been fully investigated. Here, we create a culture system in which these mesoderm-like cell types and paraxial and lateral plate mesoderm-like cells are separately generated from hPSCs. We recapitulate nephrogenic niches from separately induced metanephric NP-like and UB-like cells, which are subsequently differentiated into glomeruli, renal tubules, and collecting ducts in vitro and further vascularized in vivo. Our selective differentiation protocols should contribute to understanding the mechanisms underlying human kidney development and disease and also supply cell sources for regenerative therapies.
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Affiliation(s)
- Hiraku Tsujimoto
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Tomoko Kasahara
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Shin-Ichi Sueta
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Toshikazu Araoka
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Satoko Sakamoto
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Chihiro Okada
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan; Mitsubishi Space Software, 5-4-36 Tsukaguchi-honmachi, Amagasaki, Hyogo 661-0001, Japan
| | - Shin-Ichi Mae
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Taiki Nakajima
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Natsumi Okamoto
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Daisuke Taura
- Department of Medicine and Clinical Science, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Makoto Nasu
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Tatsuya Shimizu
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Makoto Ryosaka
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Zhongwei Li
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, 1333 San Pablo Street, MMR 618, Los Angeles, CA 90033, USA
| | - Masakatsu Sone
- Department of Medicine and Clinical Science, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Makoto Ikeya
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Akira Watanabe
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Kenji Osafune
- Center for iPS Cell Research and Application (CiRA), Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan.
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14
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Iwamoto Y, Seki Y, Taya K, Tanaka M, Iriguchi S, Miyake Y, Nakayama EE, Miura T, Shioda T, Akari H, Takaori-Kondo A, Kaneko S. Generation of macrophages with altered viral sensitivity from genome-edited rhesus macaque iPSCs to model human disease. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2021; 21:262-273. [PMID: 33869654 PMCID: PMC8039773 DOI: 10.1016/j.omtm.2021.03.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 03/11/2021] [Indexed: 01/14/2023]
Abstract
Because of their close biological similarity to humans, non-human primate (NHP) models are very useful for the development of induced pluripotent stem cell (iPSC)-based cell and regenerative organ transplantation therapies. However, knowledge on the establishment, differentiation, and genetic modification of NHP-iPSCs, especially rhesus macaque iPSCs, is limited. We succeeded in establishing iPSCs from the peripheral blood of rhesus macaques (Rh-iPSCs) by combining the Yamanaka reprograming factors and two inhibitors (GSK-3 inhibitor [CHIR 99021] and MEK1/2 inhibitor [PD0325901]) and differentiated the cells into functional macrophages through hematopoietic progenitor cells. To confirm feasibility of the Rh-iPSC-derived macrophages as a platform for bioassays to model diseases, we knocked out TRIM5 gene in Rh-iPSCs by CRISPR-Cas9, which is a species-specific HIV resistance factor. TRIM5 knockout (KO) iPSCs had the same differentiation potential to macrophages as did Rh-iPSCs, but the differentiated macrophages showed a gain of sensitivity to HIV infection in vitro. Our reprogramming, gene editing, and differentiation protocols used to obtain Rh-iPSC-derived macrophages can be applied to other gene mutations, expanding the number of NHP gene therapy models.
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Affiliation(s)
- Yoshihiro Iwamoto
- Shin Kaneko Laboratory, Department of Cell Growth and Development, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan.,Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yohei Seki
- Center for Human Evolution Modeling Research, Primate Research Institute, Kyoto University, Kyoto, Japan
| | - Kahoru Taya
- Shin Kaneko Laboratory, Department of Cell Growth and Development, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan.,Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Masahiro Tanaka
- Shin Kaneko Laboratory, Department of Cell Growth and Development, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Shoichi Iriguchi
- Shin Kaneko Laboratory, Department of Cell Growth and Development, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Yasuyuki Miyake
- Shin Kaneko Laboratory, Department of Cell Growth and Development, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Emi E Nakayama
- Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Tomoyuki Miura
- Laboratory of Primate Model, Research Center for Infectious Diseases, Institute for Frontier Life and Medical Science, Kyoto University, Kyoto, Japan
| | - Tatsuo Shioda
- Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Hirofumi Akari
- Center for Human Evolution Modeling Research, Primate Research Institute, Kyoto University, Kyoto, Japan.,Laboratory of Infectious Disease Model, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Akifumi Takaori-Kondo
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shin Kaneko
- Shin Kaneko Laboratory, Department of Cell Growth and Development, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
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15
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Lange L, Morgan M, Schambach A. The hemogenic endothelium: a critical source for the generation of PSC-derived hematopoietic stem and progenitor cells. Cell Mol Life Sci 2021; 78:4143-4160. [PMID: 33559689 PMCID: PMC8164610 DOI: 10.1007/s00018-021-03777-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 12/16/2020] [Accepted: 01/15/2021] [Indexed: 12/02/2022]
Abstract
In vitro generation of hematopoietic cells and especially hematopoietic stem cells (HSCs) from human pluripotent stem cells (PSCs) are subject to intensive research in recent decades, as these cells hold great potential for regenerative medicine and autologous cell replacement therapies. Despite many attempts, in vitro, de novo generation of bona fide HSCs remains challenging, and we are still far away from their clinical use, due to insufficient functionality and quantity of the produced HSCs. The challenges of generating PSC-derived HSCs are already apparent in early stages of hemato-endothelial specification with the limitation of recapitulating complex, dynamic processes of embryonic hematopoietic ontogeny in vitro. Further, these current shortcomings imply the incompleteness of our understanding of human ontogenetic processes from embryonic mesoderm over an intermediate, specialized hemogenic endothelium (HE) to their immediate progeny, the HSCs. In this review, we examine the recent investigations of hemato-endothelial ontogeny and recently reported progress for the conversion of PSCs and other promising somatic cell types towards HSCs with the focus on the crucial and inevitable role of the HE to achieve the long-standing goal—to generate therapeutically applicable PSC-derived HSCs in vitro.
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Affiliation(s)
- Lucas Lange
- Institute of Experimental Hematology, Hannover Medical School, 30625, Hannover, Germany.,REBIRTH, Research Center for Translational Regenerative Medicine, Hannover Medical School, 30625, Hannover, Germany
| | - Michael Morgan
- Institute of Experimental Hematology, Hannover Medical School, 30625, Hannover, Germany.,REBIRTH, Research Center for Translational Regenerative Medicine, Hannover Medical School, 30625, Hannover, Germany
| | - Axel Schambach
- Institute of Experimental Hematology, Hannover Medical School, 30625, Hannover, Germany. .,REBIRTH, Research Center for Translational Regenerative Medicine, Hannover Medical School, 30625, Hannover, Germany. .,Division of Hematology/Oncology, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
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16
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Ferreira MR, Zambuzzi WF. Platelet microparticles load a repertory of miRNAs programmed to drive osteogenic phenotype. J Biomed Mater Res A 2020; 109:1502-1511. [PMID: 33258548 DOI: 10.1002/jbm.a.37140] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 08/12/2020] [Accepted: 11/28/2020] [Indexed: 12/28/2022]
Abstract
Autologous platelet-rich plasma accelerates bone healing by releasing biomolecules during their degranulation process, which are transported by vesicle-like structures called platelet microparticles (PMPs). However, the underlying mechanisms regulating the osteogenic differentiation by PMP-released miRs remain poorly understood and this prompted us to better address this issue. Thus, miRNAseq expression profiles (E-GEOD-76789) were downloaded from ArrayExpress database. GEO2R was performed to evaluate the differential expression, and mirnatap R package was used to find targets for differentially expressed miRNAs. An extend protein-protein (ePPI) network for osteogenic marker proteins was generated using String, and DAVID tools were used to perform gene ontology and KEGG pathway analysis from ePPI and miRNAs targets. Our data show that ePPI network was composed by 232 nodes and 2,175 edges, with a clustering coefficient of 0.546. MCODE was able to identify seven clusters contained in the ePPI network, and the two that presented a score above 10 were used in further analysis. Conversely, 15,944 different targets were found as down-expressed while 5,715 different targets were up-expressed. Among the downregulated 75 miRNAs, 70 have predicted targets present in the ePPI network, while the 21 upregulated miRNAs have 19 predicted targets in the ePPI network. Our study provides a registry of miRNAs that play a central role in regulating osteogenic phenotype, which might have potential therapeutic applications in bone regeneration and bone tissue engineering.
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Affiliation(s)
- Marcel Rodrigues Ferreira
- Department of Chemistry and Biochemistry, São Paulo State University (UNESP), Institute of Biosciences, campus Botucatu, São Paulo, Brazil
| | - Willian Fernando Zambuzzi
- Department of Chemistry and Biochemistry, São Paulo State University (UNESP), Institute of Biosciences, campus Botucatu, São Paulo, Brazil
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17
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Ketharnathan S, Labudina A, Horsfield JA. Cohesin Components Stag1 and Stag2 Differentially Influence Haematopoietic Mesoderm Development in Zebrafish Embryos. Front Cell Dev Biol 2020; 8:617545. [PMID: 33365313 PMCID: PMC7750468 DOI: 10.3389/fcell.2020.617545] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 11/19/2020] [Indexed: 12/11/2022] Open
Abstract
Cohesin is a multiprotein complex made up of core subunits Smc1, Smc3, and Rad21, and either Stag1 or Stag2. Normal haematopoietic development relies on crucial functions of cohesin in cell division and regulation of gene expression via three-dimensional chromatin organization. Cohesin subunit STAG2 is frequently mutated in myeloid malignancies, but the individual contributions of Stag variants to haematopoiesis or malignancy are not fully understood. Zebrafish have four Stag paralogues (Stag1a, Stag1b, Stag2a, and Stag2b), allowing detailed genetic dissection of the contribution of Stag1-cohesin and Stag2-cohesin to development. Here we characterize for the first time the expression patterns and functions of zebrafish stag genes during embryogenesis. Using loss-of-function CRISPR-Cas9 zebrafish mutants, we show that stag1a and stag2b contribute to primitive embryonic haematopoiesis. Both stag1a and stag2b mutants present with erythropenia by 24 h post-fertilization. Homozygous loss of either paralogue alters the number of haematopoietic/vascular progenitors in the lateral plate mesoderm. The lateral plate mesoderm zone of scl-positive cells is expanded in stag1a mutants with concomitant loss of kidney progenitors, and the number of spi1-positive cells are increased, consistent with skewing toward primitive myelopoiesis. In contrast, stag2b mutants have reduced haematopoietic/vascular mesoderm and downregulation of primitive erythropoiesis. Our results suggest that Stag1 and Stag2 proteins cooperate to balance the production of primitive haematopoietic/vascular progenitors from mesoderm.
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Affiliation(s)
- Sarada Ketharnathan
- Department of Pathology, Otago Medical School, University of Otago, Dunedin, New Zealand
| | - Anastasia Labudina
- Department of Pathology, Otago Medical School, University of Otago, Dunedin, New Zealand
| | - Julia A Horsfield
- Department of Pathology, Otago Medical School, University of Otago, Dunedin, New Zealand.,Maurice Wilkins Center for Molecular Biodiscovery, The University of Auckland, Auckland, New Zealand
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18
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Seleit I, Bakry OA, Badr E, Mabrouk M. Vitamin D Receptor Gene Polymorphisms Taq-1 and Cdx-1 in Female Pattern Hair Loss. Indian J Dermatol 2020; 65:259-264. [PMID: 32831364 PMCID: PMC7423221 DOI: 10.4103/ijd.ijd_482_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background Female pattern hair loss (FPHL) is an important cause of hair loss in adult women and has a major impact on patient's quality of life. It evolves from the progressive miniaturization of follicles that leads to a subsequent decrease of hair density, leading to non-scarring diffuse alopecia, with characteristic clinical, dermoscopic, and histological patterns. Vitamin D receptor (VDR) is expressed in follicular keratinocytes and dermal papilla cells and is shown to have important role in hair growth and regulation of hair cycle. VDR polymorphism was not extensively investigated in hair disorders including FPHL. Aim To investigate the association between VDR gene polymorphism (Cdx-1 and Taq-1) and FPHL to explore if these polymorphisms affect the disease occurrence or influence its clinical presentation. Methods A case-control study was conducted on 30 female patients with FPHL and 30 age-matched female healthy subjects, as a control group. Degree of hair loss was assessed by Ludwig grading. VDR gene polymorphisms, Taq-1 and Cdx-1 were investigated by real time polymerase chain reaction. Results CC genotype, TC genotype, and T allele of Taq-1 were more prevalent in FPHL patients than in control group. They increased disease risk by 12.6, 2.1, and 2.9 folds, respectively. AA genotype, GA genotype, and G allele of Cdx-1 were significantly more prevalent among FPHL patients than in control group. They increased disease risk by 7.5, 5.2, and 5.5 folds, respectively. Conclusion Taq-1 and Cdx-1 can be considered as risk factors for FPHL. They may play role in disease persistence rather than disease initiation. This association may be explained by failure of new anagen growth and decreased proliferation of hair follicle stem cells. Further studies are recommended to confirm current findings.
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Affiliation(s)
- Iman Seleit
- Department of Dermatology, Andrology and STDs, Menoufiya University, Shibeen El Koom, Menoufiya Governorate, Egypt
| | - Ola Ahmed Bakry
- Department of Dermatology, Andrology and STDs, Menoufiya University, Shibeen El Koom, Menoufiya Governorate, Egypt
| | - Eman Badr
- Department of Medical Biochemistry, Faculty of Medicine, Menoufiya University, Shibeen El Koom, Menoufiya Governorate, Egypt
| | - Mai Mabrouk
- Department of Dermatology, Andrology and STDs, Menoufiya University, Shibeen El Koom, Menoufiya Governorate, Egypt
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19
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Zhang T, Guan P, Liu W, Zhao G, Fang Y, Fu H, Gui JF, Li G, Liu JX. Copper stress induces zebrafish central neural system myelin defects via WNT/NOTCH-hoxb5b signaling and pou3f1/fam168a/fam168b DNA methylation. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2020; 1863:194612. [PMID: 32745624 DOI: 10.1016/j.bbagrm.2020.194612] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 07/18/2020] [Accepted: 07/27/2020] [Indexed: 12/21/2022]
Abstract
Unbalanced copper (Cu) homeostasis is associated with neurological development defects and diseases. However, the molecular mechanisms remain elusive. Here, central neural system (CNS) myelin defects and the down-regulated expression of WNT/NOTCH signaling and its down-stream mediator hoxb5b were observed in Cu2+ stressed zebrafish larvae. The loss/knockdown-of-function of hoxb5b phenocopied the myelin and axon defects observed in Cu2+ stressed embryos. Meanwhile, the activation of WNT/NOTCH signaling and ectopic expression of hoxb5b could rescue Cu induced myelin defects. Additionally, fam168b, similar to pou3f1/2, exhibited significant promoter hypermethylation and reduced expression in Cu2+ stressed embryos. The hypermethylated locus in fam168b promoter acted pivotally in its transcription, and the loss/knockdown of fam168b/pou3f1 also induced myelin defects. This study also demonstrated that fam168b/pou3f1 and hoxb5b axis acted in a seesaw manner during fish embryogenesis: Cu induced the down-regulated expression of the WNT&NOTCH-hoxb5b axis through the function of copper transporter cox17, coupled with the promoter methylation of genes fam168b/pou3f1, and its subsequent down-regulated expression through the function of another transporter atp7b, making joint contributions to myelin defects in embryos.
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Affiliation(s)
- Ting Zhang
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - PengPeng Guan
- College of Informatics, Agricultural Bioinformatics Key Laboratory of Hubei Province, Hubei Engineering Technology Research Center of Agricultural Big Data, Huazhong Agricultural University, Wuhan 430070, China
| | - WenYe Liu
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China
| | - Guang Zhao
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China
| | - YaPing Fang
- College of Informatics, Agricultural Bioinformatics Key Laboratory of Hubei Province, Hubei Engineering Technology Research Center of Agricultural Big Data, Huazhong Agricultural University, Wuhan 430070, China
| | - Hui Fu
- Department of Anatomy, School of Basic Medical Science, Wuhan University, Wuhan 430072, China
| | - Jian-Fang Gui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - GuoLiang Li
- College of Informatics, Agricultural Bioinformatics Key Laboratory of Hubei Province, Hubei Engineering Technology Research Center of Agricultural Big Data, Huazhong Agricultural University, Wuhan 430070, China.
| | - Jing-Xia Liu
- College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China.
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20
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Zhang C, Featherstone M. A zebrafish hox gene acts before gastrulation to specify the hemangioblast. Genesis 2020; 58:e23363. [PMID: 32302038 DOI: 10.1002/dvg.23363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/09/2020] [Accepted: 03/24/2020] [Indexed: 11/10/2022]
Abstract
Hox genes encode transcription factors that have been implicated in embryonic, adult and disease processes. The earliest developmental program known to be directed by Hox genes is the timing of ingression of presumptive axial mesoderm during gastrulation. We previously used morpholino (MO)-based knockdown to implicate the zebrafish hoxd4a gene in the specification of the hemangioblast, an event occurring at pre-gastrulation stages, well before the earliest known Hox gene function. The precise time at which hoxd4a function is required for this specification is not defined. We therefore fused the hoxd4a coding region to the human estrogen receptor (hERT2 ). Following co-injection of anti-hoxd4a MO with mRNA encoding the Hoxd4a-ERT2 fusion protein, hemangioblast specification was fully rescued when embryos were exposed to the estrogen analog 4-hydroxy-tamoxifen (4-OHT) at 4 hr post-fertilization (hpf), but only poorly at 6 hpf and not at all at 8 hpf, thereby defining a pre-gastrulation role for Hoxd4a, the earliest developmental function of a vertebrate Hox gene so far described. Both DNA binding and interaction with cofactor Pbx were further shown to be required for rescue of the morphant phenotype. Confirmation of the morphant phenotype was sought via the generation of hoxd4a null mutants using CRISPR/Cas9 technology. Null mutants of hoxd4a up to the third generation (F3 ) failed to recapitulate the morphant phenotype, and were largely refractory to the effects of injected anti-hoxd4a MO suggesting the action of genetic compensation.
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Affiliation(s)
- Changqing Zhang
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore.,Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Mark Featherstone
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
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21
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Cdx2 Animal Models Reveal Developmental Origins of Cancers. Genes (Basel) 2019; 10:genes10110928. [PMID: 31739541 PMCID: PMC6895827 DOI: 10.3390/genes10110928] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/06/2019] [Accepted: 11/13/2019] [Indexed: 12/12/2022] Open
Abstract
The Cdx2 homeobox gene is important in assigning positional identity during the finely orchestrated process of embryogenesis. In adults, regenerative responses to tissues damage can require a replay of these same developmental pathways. Errors in reassigning positional identity during regeneration can cause metaplasias-normal tissue arising in an abnormal location-and this in turn, is a well-recognized cancer risk factor. In animal models, a gain of Cdx2 function can elicit a posterior shift in tissue identity, modeling intestinal-type metaplasias of the esophagus (Barrett's esophagus) and stomach. Conversely, loss of Cdx2 function can elicit an anterior shift in tissue identity, inducing serrated-type lesions expressing gastric markers in the colon. These metaplasias are major risk factors for the later development of esophageal, stomach and colon cancer. Leukemia, another cancer in which Cdx2 is ectopically expressed, may have mechanistic parallels with epithelial cancers in terms of stress-induced reprogramming. This review will address how animal models have refined our understanding of the role of Cdx2 in these common human cancers.
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22
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Seleit I, Bakry OA, Badr E, Hassan EH. Vitamin D Receptor Gene Polymorphism In Chronic Telogen Effluvium; A Case-Control Study. Clin Cosmet Investig Dermatol 2019; 12:745-750. [PMID: 31632122 PMCID: PMC6790134 DOI: 10.2147/ccid.s227232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 09/24/2019] [Indexed: 11/28/2022]
Abstract
Background Telogen effluvium (TE) is a form of alopecia characterized by diffuse hair shedding. Vitamin D receptor (VDR) plays a role in hair cycle regulation as it is expressed in follicular keratinocytes and dermal papilla cells. Purpose To investigate the association between Cdx1 and Taq1 VDR gene polymorphisms and chronic TE. Methods Thirty female patients with chronic TE were selected and 30 healthy, age- and sex-matched volunteers were included as a control group. Detection of VDR gene polymorphisms Taq1 and Cdx1 was done by real-time polymerase chain reaction. Results Regarding Taq 1, CC genotype was present in 30% of cases versus 3.3% of controls. TC genotype was present in 33.3% of cases and 36.7% of controls. CC genotype was significantly associated with cases (P=0.01). It increases the risk of chronic TE by 14.7 folds. C allele was significantly associated with patient group (P=0.004). It increases the risk of disease occurrence by 3.1 folds. Regarding Cdx1, AA genotype was present in 6.7% of cases versus 3.3% of controls. GA genotype was present in approximately 30% of cases and 6.7% of controls. GA genotype was significantly associated with cases (P=0.03). It increases the risk of chronic TE by 6.3 folds. A allele was significantly associated with patient group (P=0.007). It increases the risk of disease occurrence by 3.8 folds. Limitations The main limitation is the small number of cases due to the time and financial constraints. Only chronic TE was analyzed, therefore, other types should be investigated in the following studies. Conclusion After exposure to primary physical or mental stressor, hair follicles are stimulated to enter prematurely into telogen and shed out. In individuals with Taq1 and Cdx1 polymorphisms, the disease persists as a result of prevention of new anagen growth and inhibition of hair follicle stem cell proliferation.
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Affiliation(s)
- Iman Seleit
- Department of Dermatology, Andrology and STDs, Faculty of Medicine, Menoufiya University, Menoufiya Governorate, Egypt
| | - Ola A Bakry
- Department of Dermatology, Andrology and STDs, Faculty of Medicine, Menoufiya University, Menoufiya Governorate, Egypt
| | - Eman Badr
- Department of Medical Biochemistry, Faculty of Medicine, Menoufiya University, Menoufiya Governorate, Egypt
| | - Eman H Hassan
- Department of Dermatology, Andrology and STDs, Faculty of Medicine, Menoufiya University, Menoufiya Governorate, Egypt
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23
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Shen J, Lyu C, Zhu Y, Feng Z, Zhang S, Hoyle DL, Ji G, Brodsky RA, Cheng T, Wang ZZ. Defining early hematopoietic-fated primitive streak specification of human pluripotent stem cells by the orchestrated balance of Wnt, activin, and BMP signaling. J Cell Physiol 2019; 234:16136-16147. [PMID: 30740687 PMCID: PMC6689260 DOI: 10.1002/jcp.28272] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/16/2019] [Accepted: 01/22/2019] [Indexed: 01/25/2023]
Abstract
Distinct regions of the primitive streak (PS) have diverse potential to differentiate into several tissues, including the hematopoietic lineage originated from the posterior region of PS. Although various signaling pathways have been identified to promote the development of PS and its mesoderm derivatives, there is a large gap in our understanding of signaling pathways that regulate the hematopoietic fate of PS. Here, we defined the roles of Wnt, activin, and bone morphogenetic protein (BMP) signaling pathways in generating hematopoietic-fated PS from human pluripotent stem cells (hPSCs). We found that the synergistic balance of these signaling pathways was crucial for controlling the PS fate determination towards hematopoietic lineage via mesodermal progenitors. Although the induction of PS depends largely on the Wnt and activin signaling, the PS generated without BMP4 lacks the hematopoietic potential, indicating that the BMP signaling is necessary for the PS to acquire hematopoietic property. Appropriate levels of Wnt signaling is crucial for the development of PS and its specification to the hematopoietic lineage. Although the development of PS is less sensitive to activin or BMP signaling, the fate of PS to mesoderm progenitors and subsequent hematopoietic lineage is determined by appropriate levels of activin or BMP signaling. Collectively, our study demonstrates that Wnt, activin, and BMP signaling pathways play cooperative and distinct roles in regulating the fate determination of PS for hematopoietic development. Our understanding of the regulatory networks of hematopoietic-fated PS would provide important insights into early hematopoietic patterning and possible guidance for generating functional hematopoietic cells from hPSCs in vitro.
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Affiliation(s)
- Jun Shen
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China,Division of Hematology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Cuicui Lyu
- Department of Hematology, the First Central Hospital of Tianjin, Tianjin, China
| | - Yaoyao Zhu
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Zicen Feng
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Shuo Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China,Division of Hematology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Dixie L. Hoyle
- Division of Hematology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Guangzhen Ji
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Robert A. Brodsky
- Division of Hematology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Tao Cheng
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China,Collaborative Innovation Center for Cancer Medicine, Tianjin, China,Tianjin Key Laboratory of Blood Cell Therapy and Technology, Tianjin, China,Correspondence Zack Z. Wang, Division of Hematology, Johns Hopkins University School of Medicine, 720 Rutland Ave, Ross 1029, Baltimore, MD 21205, USA. ., Tao Cheng, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science, 288 Nanjing Rd, Tianjin 300020, China.
| | - Zack Z. Wang
- Division of Hematology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Correspondence Zack Z. Wang, Division of Hematology, Johns Hopkins University School of Medicine, 720 Rutland Ave, Ross 1029, Baltimore, MD 21205, USA. ., Tao Cheng, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science, 288 Nanjing Rd, Tianjin 300020, China.
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24
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Suh J, Eom JH, Kim NK, Woo KM, Baek JH, Ryoo HM, Lee SJ, Lee YS. Growth differentiation factor 11 locally controls anterior-posterior patterning of the axial skeleton. J Cell Physiol 2019; 234:23360-23368. [PMID: 31183862 PMCID: PMC6772169 DOI: 10.1002/jcp.28904] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 05/14/2019] [Indexed: 12/14/2022]
Abstract
Growth and differentiation factor 11 (GDF11) is a transforming growth factor β family member that has been identified as the central player of anterior-posterior (A-P) axial skeletal patterning. Mice homozygous for Gdf11 deletion exhibit severe anterior homeotic transformations of the vertebrae and craniofacial defects. During early embryogenesis, Gdf11 is expressed predominantly in the primitive streak and tail bud regions, where new mesodermal cells arise. On the basis of this expression pattern of Gdf11 and the phenotype of Gdf11 mutant mice, it has been suggested that GDF11 acts to specify positional identity along the A-P axis either by local changes in levels of signaling as development proceeds or by acting as a morphogen. To further investigate the mechanism of action of GDF11 in the vertebral specification, we used a Cdx2-Cre transgene to generate mosaic mice in which Gdf11 expression is removed in posterior regions including the tail bud, but not in anterior regions. The skeletal analysis revealed that these mosaic mice display patterning defects limited to posterior regions where Gdf11 expression is deficient, whereas displaying normal skeletal phenotype in anterior regions where Gdf11 is normally expressed. Specifically, the mosaic mice exhibited seven true ribs, a pattern observed in wild-type (wt) mice (vs. 10 true ribs in Gdf11-/- mice), in the anterior axis and nine lumbar vertebrae, a pattern observed in Gdf11 null mice (vs. six lumbar vertebrae in wt mice), in the posterior axis. Our findings suggest that GDF11, rather than globally acting as a morphogen secreted from the tail bud, locally regulates axial vertebral patterning.
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Affiliation(s)
- Joonho Suh
- Department of Molecular Genetics and Dental Pharmacology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Je-Hyun Eom
- Department of Molecular Genetics and Dental Pharmacology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Na-Kyung Kim
- Department of Molecular Genetics and Dental Pharmacology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Kyung Mi Woo
- Department of Molecular Genetics and Dental Pharmacology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Jeong-Hwa Baek
- Department of Molecular Genetics and Dental Pharmacology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Hyun-Mo Ryoo
- Department of Molecular Genetics and Dental Pharmacology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Se-Jin Lee
- The Jackson Laboratory, Farmington, Connecticut.,Department of Genetics and Genome Sciences, School of Medicine, University of Connecticut, Farmington, Connecticut
| | - Yun-Sil Lee
- Department of Molecular Genetics and Dental Pharmacology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
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25
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Norrin maintains malignancy of gastric cancer cells in part through activating AKT signaling. Biochem Biophys Res Commun 2019; 512:405-411. [DOI: 10.1016/j.bbrc.2019.03.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 03/07/2019] [Indexed: 01/09/2023]
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26
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Foley TE, Hess B, Savory JGA, Ringuette R, Lohnes D. Role of Cdx factors in early mesodermal fate decisions. Development 2019; 146:146/7/dev170498. [PMID: 30936115 DOI: 10.1242/dev.170498] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 03/01/2019] [Indexed: 12/30/2022]
Abstract
Murine cardiac and hematopoietic progenitors are derived from Mesp1+ mesoderm. Cdx function impacts both yolk sac hematopoiesis and cardiogenesis in zebrafish, suggesting that Cdx family members regulate early mesoderm cell fate decisions. We found that Cdx2 occupies a number of transcription factor loci during embryogenesis, including key regulators of both cardiac and blood development, and that Cdx function is required for normal expression of the cardiogenic transcription factors Nkx2-5 and Tbx5 Furthermore, Cdx and Brg1, an ATPase subunit of the SWI/SNF chromatin remodeling complex, co-occupy a number of loci, suggesting that Cdx family members regulate target gene expression through alterations in chromatin architecture. Consistent with this, we demonstrate loss of Brg1 occupancy and altered chromatin structure at several cardiogenic genes in Cdx-null mutants. Finally, we provide evidence for an onset of Cdx2 expression at E6.5 coinciding with egression of cardiac progenitors from the primitive streak. Together, these findings suggest that Cdx functions in multi-potential mesoderm to direct early cell fate decisions through transcriptional regulation of several novel target genes, and provide further insight into a potential epigenetic mechanism by which Cdx influences target gene expression.
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Affiliation(s)
- Tanya E Foley
- Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada
| | - Bradley Hess
- Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada
| | - Joanne G A Savory
- Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada
| | - Randy Ringuette
- Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada
| | - David Lohnes
- Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada
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27
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Alsayegh K, Cortés-Medina LV, Ramos-Mandujano G, Badraiq H, Li M. Hematopoietic Differentiation of Human Pluripotent Stem Cells: HOX and GATA Transcription Factors as Master Regulators. Curr Genomics 2019; 20:438-452. [PMID: 32194342 PMCID: PMC7062042 DOI: 10.2174/1389202920666191017163837] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 09/04/2019] [Accepted: 09/27/2019] [Indexed: 02/07/2023] Open
Abstract
Numerous human disorders of the blood system would directly or indirectly benefit from therapeutic approaches that reconstitute the hematopoietic system. Hematopoietic stem cells (HSCs), either from matched donors or ex vivo manipulated autologous tissues, are the most used cellular source of cell therapy for a wide range of disorders. Due to the scarcity of matched donors and the difficulty of ex vivo expansion of HSCs, there is a growing interest in harnessing the potential of pluripotent stem cells (PSCs) as a de novo source of HSCs. PSCs make an ideal source of cells for regenerative medicine in general and for treating blood disorders in particular because they could expand indefinitely in culture and differentiate to any cell type in the body. However, advancement in deriving functional HSCs from PSCs has been slow. This is partly due to an incomplete understanding of the molecular mechanisms underlying normal hematopoiesis. In this review, we discuss the latest efforts to generate human PSC (hPSC)-derived HSCs capable of long-term engraftment. We review the regulation of the key transcription factors (TFs) in hematopoiesis and hematopoietic differentiation, the Homeobox (HOX) and GATA genes, and the interplay between them and microRNAs. We also propose that precise control of these master regulators during the course of hematopoietic differentiation is key to achieving functional hPSC-derived HSCs.
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Affiliation(s)
- Khaled Alsayegh
- King Abdullah International Medical Research Centre, King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.,Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Lorena V Cortés-Medina
- Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Gerardo Ramos-Mandujano
- Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Heba Badraiq
- King Abdullah International Medical Research Centre, King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
| | - Mo Li
- Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
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28
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Chronic myeloid leukaemia cells require the bone morphogenic protein pathway for cell cycle progression and self-renewal. Cell Death Dis 2018; 9:927. [PMID: 30206237 PMCID: PMC6134087 DOI: 10.1038/s41419-018-0905-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 06/15/2018] [Accepted: 07/02/2018] [Indexed: 01/06/2023]
Abstract
Leukaemic stem cell (LSC) persistence remains a major obstacle to curing chronic myeloid leukaemia (CML). The bone morphogenic protein (BMP) pathway is deregulated in CML, with altered expression and response to the BMP ligands shown to impact on LSC expansion and behaviour. In this study, we determined whether alterations in the BMP pathway gene signature had any predictive value for therapeutic response by profiling 60 CML samples at diagnosis from the UK SPIRIT2 trial and correlating the data to treatment response using the 18-month follow-up data. There was significant deregulation of several genes involved in the BMP pathway with ACV1C, INHBA, SMAD7, SNAIL1 and SMURF2 showing differential expression in relation to response. Therapeutic targeting of CML cells using BMP receptor inhibitors, in combination with tyrosine kinase inhibitor (TKI), indicate a synergistic mode of action. Furthermore, dual treatment resulted in altered cell cycle gene transcription and irreversible cell cycle arrest, along with increased apoptosis compared to single agents. Targeting CML CD34+ cells with BMP receptor inhibitors resulted in fewer cell divisions, reduced numbers of CD34+ cells and colony formation when compared to normal donor CD34+ cells, both in the presence and absence of BMP4. In an induced pluripotent stem cell (iPSC) model generated from CD34+ hematopoietic cells, we demonstrate altered cell cycle profiles and dynamics of ALK expression in CML-iPSCs in the presence and absence of BMP4 stimulation, when compared to normal iPSC. Moreover, dual targeting with TKI and BMP inhibitor prevented the self-renewal of CML-iPSC and increased meso-endodermal differentiation. These findings indicate that transformed stem cells may be more reliant on BMP signalling than normal stem cells. These changes offer a therapeutic window in CML, with intervention using BMP inhibitors in combination with TKI having the potential to target LSC self-renewal and improve long-term outcome for patients.
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29
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Darvishi M, Mashati P, Khosravi A. The clinical significance of CDX2 in leukemia: A new perspective for leukemia research. Leuk Res 2018; 72:45-51. [PMID: 30096576 DOI: 10.1016/j.leukres.2018.07.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/19/2018] [Accepted: 07/24/2018] [Indexed: 02/06/2023]
Abstract
CDX2 gene encodes a transcription factor involved in primary embryogenesis and hematopoietic development; however, the expression of CDX2 in adults is restricted to intestine and is not observed in blood tissues. The ectopic expression of CDX2 has been frequently observed in acute myeloid and lymphoid leukemia which in most cases is concomitant with poor prognosis. Induction of CDX2 in mice leads to hematologic complications, showing the leukemogenic origin of this gene. CDX2 plays significant role in the most critical pathways as the regulator of important transcription factors targeting cell proliferation, multi-drug resistance and survival. On the whole, the results indicate that CDX2 has the potential to be suggested as the diagnostic marker in hematologic malignancies. This review discusses the role of aberrant expression of CDX2 in the prognosis and the response to treatment in patients with different leukemia in clinical reports in the recent decades. The improvement in this regard could be of high importance in diagnosis and treatment methods.
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Affiliation(s)
- Mina Darvishi
- Department of Hematology and Blood Bank, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Pargol Mashati
- Department of Hematology and Blood Bank, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Khosravi
- Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran; Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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30
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Xue R, Jia K, Wang J, Yang L, Wang Y, Gao L, Hao J. A Rising Star in Pancreatic Diseases: Pancreatic Stellate Cells. Front Physiol 2018; 9:754. [PMID: 29967585 PMCID: PMC6015921 DOI: 10.3389/fphys.2018.00754] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 05/29/2018] [Indexed: 12/17/2022] Open
Abstract
Pancreatic stellate cell (PSC) is a type of pluripotent cell located between pancreatic lobules and the surrounding area of acinars. When activated, PSC can be transformed into myofibroblast-like cell. A number of evidences suggest that activated PSC is the main source of the accumulation of extracellular matrix (ECM) protein under the pathological conditions, which lead to pancreatic fibrosis in chronic pancreatitis and pancreatic cancer. Recent studies have found that PSC also plays an important role in the endocrine cell function, islet fibrosis and diabetes. In order to provide new strategies for the treatment of pancreatic diseases, this paper systematically summarizes the recent researches about the biological behaviors of PSC, including its stem/progenitor cell characteristics, secreted exosomes, cellular senescence, epithelial mesenchymal transformation (EMT), energy metabolism and direct mechanical reprogramming.
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Affiliation(s)
- Ran Xue
- Department of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Kai Jia
- Department of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Jianxin Wang
- Department of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Lixin Yang
- Department of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yanbin Wang
- Department of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Lingyun Gao
- Department of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Jianyu Hao
- Department of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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31
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Leung A, Zulick E, Skvir N, Vanuytsel K, Morrison TA, Naing ZH, Wang Z, Dai Y, Chui DHK, Steinberg MH, Sherr DH, Murphy GJ. Notch and Aryl Hydrocarbon Receptor Signaling Impact Definitive Hematopoiesis from Human Pluripotent Stem Cells. Stem Cells 2018; 36:1004-1019. [PMID: 29569827 PMCID: PMC6099224 DOI: 10.1002/stem.2822] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 02/19/2018] [Accepted: 03/13/2018] [Indexed: 12/19/2022]
Abstract
Induced pluripotent stem cells (iPSCs) stand to revolutionize the way we study human development, model disease, and eventually, treat patients. However, these cell sources produce progeny that retain embryonic and/or fetal characteristics. The failure to mature to definitive, adult‐type cells is a major barrier for iPSC‐based disease modeling and drug discovery. To directly address these concerns, we have developed a chemically defined, serum and feeder‐free–directed differentiation platform to generate hematopoietic stem‐progenitor cells (HSPCs) and resultant adult‐type progeny from iPSCs. This system allows for strict control of signaling pathways over time through growth factor and/or small molecule modulation. Through direct comparison with our previously described protocol for the production of primitive wave hematopoietic cells, we demonstrate that induced HSPCs are enhanced for erythroid and myeloid colony forming potential, and strikingly, resultant erythroid‐lineage cells display enhanced expression of adult β globin indicating definitive pathway patterning. Using this system, we demonstrate the stage‐specific roles of two key signaling pathways, Notch and the aryl hydrocarbon receptor (AHR), in the derivation of definitive hematopoietic cells. We illustrate the stage‐specific necessity of Notch signaling in the emergence of hematopoietic progenitors and downstream definitive, adult‐type erythroblasts. We also show that genetic or small molecule inhibition of the AHR results in the increased production of CD34+CD45+ HSPCs while conversely, activation of the same receptor results in a block of hematopoietic cell emergence. Results presented here should have broad implications for hematopoietic stem cell transplantation and future clinical translation of iPSC‐derived blood cells. Stem Cells2018;36:1004–1019
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Affiliation(s)
- Amy Leung
- Section of Hematology and Oncology, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA.,Center for Regenerative Medicine (CReM), Boston University and Boston Medical Center, Boston, Massachusetts, USA
| | - Elizabeth Zulick
- Section of Hematology and Oncology, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA.,Center for Regenerative Medicine (CReM), Boston University and Boston Medical Center, Boston, Massachusetts, USA
| | - Nicholas Skvir
- Section of Hematology and Oncology, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA.,Center for Regenerative Medicine (CReM), Boston University and Boston Medical Center, Boston, Massachusetts, USA
| | - Kim Vanuytsel
- Section of Hematology and Oncology, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA.,Center for Regenerative Medicine (CReM), Boston University and Boston Medical Center, Boston, Massachusetts, USA
| | - Tasha A Morrison
- Section of Hematology and Oncology, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Zaw Htut Naing
- Section of Hematology and Oncology, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA.,Center for Regenerative Medicine (CReM), Boston University and Boston Medical Center, Boston, Massachusetts, USA
| | - Zhongyan Wang
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts, USA
| | - Yan Dai
- Section of Hematology and Oncology, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - David H K Chui
- Section of Hematology and Oncology, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Martin H Steinberg
- Section of Hematology and Oncology, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - David H Sherr
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts, USA
| | - George J Murphy
- Section of Hematology and Oncology, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA.,Center for Regenerative Medicine (CReM), Boston University and Boston Medical Center, Boston, Massachusetts, USA
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32
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Kim HS, McKnite A, Xie Y, Christian JL. Fibronectin type III and intracellular domains of Toll-like receptor 4 interactor with leucine-rich repeats (Tril) are required for developmental signaling. Mol Biol Cell 2018; 29:523-531. [PMID: 29298840 PMCID: PMC6004582 DOI: 10.1091/mbc.e17-07-0446] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 12/06/2017] [Accepted: 12/28/2017] [Indexed: 01/03/2023] Open
Abstract
Toll-like receptor 4 interactor with leucine-rich repeats (Tril) functions as a coreceptor for Toll-like receptors (Tlrs) to mediate innate immune responses in adults. In embryos, Tril signals to promote degradation of the Bmp inhibitor, Smad7, to allow for blood formation. It is not known whether this function requires, or is independent of, Tlrs. In the current studies, we performed a structure-function analysis, which indicated that the fibronectin type III (FN) domain and the intracellular domain of Tril are required to trigger Smad7 degradation in Xenopus embryos. Furthermore, we found evidence suggesting that a Tril deletion mutant lacking the FN domain (Tril∆FN) can dominantly inhibit signaling by endogenous Tril when overexpressed. This finding raises the possibility that the FN domain functions to bind endogenous Tril ligands. We also show that Tril cycles between the cell surface and endosomes and that the Tril extracellular domain, as well as cadherin based cell-cell adhesion, are required for cell surface retention, while the intracellular domain is required for internalization in Xenopus ectodermal explants. Using a CHO cell aggregation assay, we show that, unlike other transmembrane proteins that contain leucine-rich repeats, Tril is not sufficient to mediate homophilic adhesion.
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Affiliation(s)
- Hyung-Seok Kim
- Division of Hematology and Hematologic Malignancies, Department of Neurobiology and Anatomy and Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 94132
| | - Autumn McKnite
- Division of Hematology and Hematologic Malignancies, Department of Neurobiology and Anatomy and Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 94132
| | - Yuanyuan Xie
- Division of Hematology and Hematologic Malignancies, Department of Neurobiology and Anatomy and Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 94132
| | - Jan L Christian
- Division of Hematology and Hematologic Malignancies, Department of Neurobiology and Anatomy and Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 94132
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33
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CFTR mutation enhances Dishevelled degradation and results in impairment of Wnt-dependent hematopoiesis. Cell Death Dis 2018; 9:275. [PMID: 29449653 PMCID: PMC5833403 DOI: 10.1038/s41419-018-0311-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/04/2018] [Accepted: 01/08/2018] [Indexed: 01/16/2023]
Abstract
Mutations of cystic fibrosis transmembrane conductance regulator (CFTR) cause cystic fibrosis (CF) with a multitude of clinical manifestations. Some CF patients develop clinically significant anemia, suggesting that CFTR may regulate hematopoiesis. Here, we report that cftr mutant zebrafish model exhibits primitive and definitive hematopoietic defects with impaired Wnt signaling. Cftr is found to interact, via its PDZ-binding domain (PDZBD), with Dishevelled (Dvl), a key component of Wnt signaling required for hematopoietic progenitor specification, thus protecting Dvl from Dapper1 (Dpr1)-induced lysosomal degradation. Defective hematopoiesis and impaired Wnt signaling in cftr mutant can be rescued by overexpression of wild-type or channel function-defective G551D mutant CFTR with an intact PDZBD, but not Cftr with mutations in the PDZBD. Analysis of human database (http://r2.amc.nl) shows that CFTR is positively correlated with DVL2 and Wnt-related hematopoietic factors in human blood system. The results reveal a previously unrecognized role of CFTR, which is independent of its channel function, in regulating DVL degradation and thus Wnt signaling required for hematopoiesis in both zebrafish and humans, providing an explanation for the anemic phenotype of CF patients.
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34
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Barbieri E, Deflorian G, Pezzimenti F, Valli D, Saia M, Meani N, Gruszka AM, Alcalay M. Nucleophosmin leukemogenic mutant activates Wnt signaling during zebrafish development. Oncotarget 2018; 7:55302-55312. [PMID: 27486814 PMCID: PMC5342418 DOI: 10.18632/oncotarget.10878] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 06/26/2016] [Indexed: 01/08/2023] Open
Abstract
Nucleophosmin (NPM1) is a ubiquitous multifunctional phosphoprotein with both oncogenic and tumor suppressor functions. Mutations of the NPM1 gene are the most frequent genetic alterations in acute myeloid leukemia (AML) and result in the expression of a mutant protein with aberrant cytoplasmic localization, NPMc+. Although NPMc+ causes myeloproliferation and AML in animal models, its mechanism of action remains largely unknown. Here we report that NPMc+ activates canonical Wnt signaling during the early phases of zebrafish development and determines a Wnt-dependent increase in the number of progenitor cells during primitive hematopoiesis. Coherently, the canonical Wnt pathway is active in AML blasts bearing NPMc+ and depletion of the mutant protein in the patient derived OCI-AML3 cell line leads to a decrease in the levels of active β-catenin and of Wnt target genes. Our results reveal a novel function of NPMc+ and provide insight into the molecular pathogenesis of AML bearing NPM1 mutations.
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Affiliation(s)
- Elisa Barbieri
- Department of Experimental Oncology, Istituto Europeo di Oncologia, Milan, Italy.,Current address: Gene Expression and Regulation Program, The Wistar Institute, Philadelphia, PA, USA
| | - Gianluca Deflorian
- The FIRC Institute of Molecular Oncology (IFOM) Foundation, Milan, Italy
| | | | - Debora Valli
- Department of Experimental Oncology, Istituto Europeo di Oncologia, Milan, Italy
| | - Marco Saia
- Department of Experimental Oncology, Istituto Europeo di Oncologia, Milan, Italy
| | - Natalia Meani
- Department of Experimental Oncology, Istituto Europeo di Oncologia, Milan, Italy
| | - Alicja M Gruszka
- Department of Experimental Oncology, Istituto Europeo di Oncologia, Milan, Italy
| | - Myriam Alcalay
- Department of Experimental Oncology, Istituto Europeo di Oncologia, Milan, Italy.,Dipartimento di Oncologia ed Emato-Oncologia, Università degli Studi di Milano, Milan, Italy
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35
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Abstract
Bilaterality – the possession of two orthogonal body axes – is the name-giving trait of all bilaterian animals. These body axes are established during early embryogenesis and serve as a three-dimensional coordinate system that provides crucial spatial cues for developing cells, tissues, organs and appendages. The emergence of bilaterality was a major evolutionary transition, as it allowed animals to evolve more complex body plans. Therefore, how bilaterality evolved and whether it evolved once or several times independently is a fundamental issue in evolutionary developmental biology. Recent findings from non-bilaterian animals, in particular from Cnidaria, the sister group to Bilateria, have shed new light into the evolutionary origin of bilaterality. Here, we compare the molecular control of body axes in radially and bilaterally symmetric cnidarians and bilaterians, identify the minimal set of traits common for Bilateria, and evaluate whether bilaterality arose once or more than once during evolution.
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Affiliation(s)
- Grigory Genikhovich
- Department for Molecular Evolution and Development, Centre of Organismal Systems Biology, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria
| | - Ulrich Technau
- Department for Molecular Evolution and Development, Centre of Organismal Systems Biology, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria
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36
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Morizane R, Miyoshi T, Bonventre JV. Concise Review: Kidney Generation with Human Pluripotent Stem Cells. Stem Cells 2017; 35:2209-2217. [PMID: 28869686 DOI: 10.1002/stem.2699] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 08/15/2017] [Accepted: 08/19/2017] [Indexed: 12/30/2022]
Abstract
Chronic kidney disease (CKD) is a worldwide health care problem, resulting in increased cardiovascular mortality and often leading to end-stage kidney disease, where patients require kidney replacement therapies such as hemodialysis or kidney transplantation. Loss of functional nephrons contributes to the progression of CKD, which can be attenuated but not reversed due to inability to generate new nephrons in human adult kidneys. Human pluripotent stem cells (hPSCs), by virtue of their unlimited self-renewal and ability to differentiate into cells of all three embryonic germ layers, are attractive sources for kidney regenerative therapies. Recent advances in stem cell biology have identified key signals necessary to maintain stemness of human nephron progenitor cells (NPCs) in vitro, and led to establishment of protocols to generate NPCs and nephron epithelial cells from human fetal kidneys and hPSCs. Effective production of large amounts of human NPCs and kidney organoids will facilitate elucidation of developmental and pathobiological pathways, kidney disease modeling and drug screening as well as kidney regenerative therapies. We summarize the recent studies to induce NPCs and kidney cells from hPSCs, studies of NPC expansion from mouse and human embryonic kidneys, and discuss possible approaches in vivo to regenerate kidneys with cell therapies and the development of bioengineered kidneys. Stem Cells 2017;35:2209-2217.
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Affiliation(s)
- Ryuji Morizane
- Department of Medicine, Renal Division, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA.,Harvard Stem Cell Institute, Cambridge, Massachusetts, USA
| | - Tomoya Miyoshi
- Department of Medicine, Renal Division, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Joseph V Bonventre
- Department of Medicine, Renal Division, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA.,Harvard Stem Cell Institute, Cambridge, Massachusetts, USA
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37
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Pramono A, Zahabi A, Morishima T, Lan D, Welte K, Skokowa J. Thrombopoietin induces hematopoiesis from mouse ES cells via HIF-1α-dependent activation of a BMP4 autoregulatory loop. Ann N Y Acad Sci 2017; 1375:38-51. [PMID: 27447537 DOI: 10.1111/nyas.13138] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 05/02/2016] [Accepted: 05/19/2016] [Indexed: 01/26/2023]
Abstract
Understanding the molecular mechanisms underlying hematopoietic differentiation of embryonic stem (ES) cells may help to ascertain the conditions for the in vitro generation of hematopoietic cells. Previously, we found that patients with congenital amegakaryocytic thrombocytopenia (CAMT), who develop pancytopenia early after birth, harbor mutations within the thrombopoietin (TPO) receptor, c-MPL. This knowledge, together with observations in vitro and in vivo, suggests that TPO/c-MPL signaling promotes early hematopoiesis. However, the mechanisms underlying TPO signaling are not fully elucidated. Here, we describe a direct connection between TPO and bone morphogenetic protein 4 (BMP4) signaling pathways in determining the hematopoietic fate of ES cells. Morphogen BMP4 is known to induce early hematopoietic differentiation of ES cells. Treatment of ES cells with TPO induced the autocrine production of BMP4 with concomitant upregulation of the BMP receptor BMPR1A, phosphorylation of SMAD1, 5, 8, and activation of specific BMP4 target genes; this was mediated by TPO-dependent binding of transcription factor HIF-1α to the BMP4 gene promoter. Treatment of ES cells with the BMP antagonist noggin substantially reduced TPO-dependent hematopoietic differentiation of ES cells. Thus, our findings contribute to the establishment of techniques for generating hematopoietic cells from ES cells.
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Affiliation(s)
- Andri Pramono
- Stem Cell and Tissue Engineering Research Center, Faculty of Medicine, University of Pembangunan Nasional "Veteran,", Jakarta, Indonesia
| | - Azadeh Zahabi
- Departments of Hematology, Oncology, Immunology, Rheumatology, and Pulmonology, University Hospital Tübingen, Tübingen, Germany
| | - Tatsuya Morishima
- Departments of Hematology, Oncology, Immunology, Rheumatology, and Pulmonology, University Hospital Tübingen, Tübingen, Germany
| | - Dan Lan
- Pediatric Department of the First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Karl Welte
- Department of Hematology, Oncology and Bone Marrow Transplantation, Children's Hospital, University Hospital Tübingen, Tübingen, Germany
| | - Julia Skokowa
- Departments of Hematology, Oncology, Immunology, Rheumatology, and Pulmonology, University Hospital Tübingen, Tübingen, Germany
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38
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Mullen AC, Wrana JL. TGF-β Family Signaling in Embryonic and Somatic Stem-Cell Renewal and Differentiation. Cold Spring Harb Perspect Biol 2017; 9:cshperspect.a022186. [PMID: 28108485 DOI: 10.1101/cshperspect.a022186] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Soon after the discovery of transforming growth factor-β (TGF-β), seminal work in vertebrate and invertebrate models revealed the TGF-β family to be central regulators of tissue morphogenesis. Members of the TGF-β family direct some of the earliest cell-fate decisions in animal development, coordinate complex organogenesis, and contribute to tissue homeostasis in the adult. Here, we focus on the role of the TGF-β family in mammalian stem-cell biology and discuss its wide and varied activities both in the regulation of pluripotency and in cell-fate commitment.
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Affiliation(s)
- Alan C Mullen
- Gastrointestinal Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114.,Harvard Stem Cell Institute, Cambridge, Massachusetts 02138
| | - Jeffrey L Wrana
- Lunenfeld-Tanenbam Research Institute, Mount Sinai Hospital and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5G 1X5, Canada
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39
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Creamer JP, Dege C, Ren Q, Ho JTK, Valentine MC, Druley TE, Sturgeon CM. Human definitive hematopoietic specification from pluripotent stem cells is regulated by mesodermal expression of CDX4. Blood 2017; 129:2988-2992. [PMID: 28408465 PMCID: PMC5454336 DOI: 10.1182/blood-2016-11-749382] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Accepted: 04/08/2017] [Indexed: 12/15/2022] Open
Abstract
The generation of hematopoietic stem cells from human pluripotent stem cells (hPSCs) is a major goal for regenerative medicine. Achieving this goal is complicated by our incomplete understanding of the mechanism regulating definitive hematopoietic specification. We used our stage-specific hPSC differentiation method to obtain and identify, via CD235a expression, mesoderm harboring exclusively primitive or definitive hematopoietic potential to understand the genetic regulation of definitive hematopoietic specification. Whole-transcriptome gene expression analyses on WNT-dependent KDR+CD235a- definitive hematopoietic mesoderm and WNT-independent KDR+CD235a+ primitive hematopoietic mesoderm revealed strong CDX gene expression within definitive hematopoietic mesoderm. Temporal expression analyses revealed that CDX4 was expressed exclusively within definitive hematopoietic KDR+CD235a- mesoderm in a WNT- and fibroblast growth factor-dependent manner. We found that exogenous CDX4 expression exclusively during mesoderm specification resulted in a >90% repression in primitive hematopoietic potential, but conferred fivefold greater definitive hematopoietic potential, similar to that observed following WNT stimulation. In contrast, CDX4 knockout hPSCs had intact primitive hematopoietic potential, but exhibited a fivefold decrease in multilineage definitive hematopoietic potential. Taken together, these findings indicate that CDX4 is a critical transcription factor in the regulation of human definitive hematopoietic specification, and provides a mechanistic basis for WNT-mediated definitive hematopoietic specification from hPSCs.
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Affiliation(s)
| | | | - Qihao Ren
- Division of Hematology, Department of Medicine
| | | | | | | | - Christopher M Sturgeon
- Division of Hematology, Department of Medicine
- Department of Developmental Biology, Washington University in St. Louis, St. Louis, MO
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40
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Richter J, Traver D, Willert K. The role of Wnt signaling in hematopoietic stem cell development. Crit Rev Biochem Mol Biol 2017; 52:414-424. [PMID: 28508727 DOI: 10.1080/10409238.2017.1325828] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Jenna Richter
- a Department of Cellular and Molecular Medicine , University of California , San Diego , La Jolla , CA , USA
| | - David Traver
- a Department of Cellular and Molecular Medicine , University of California , San Diego , La Jolla , CA , USA
| | - Karl Willert
- a Department of Cellular and Molecular Medicine , University of California , San Diego , La Jolla , CA , USA
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41
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Horne GA, Copland M. Approaches for targeting self-renewal pathways in cancer stem cells: implications for hematological treatments. Expert Opin Drug Discov 2017; 12:465-474. [DOI: 10.1080/17460441.2017.1303477] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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42
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Morizane R, Bonventre JV. Kidney Organoids: A Translational Journey. Trends Mol Med 2017; 23:246-263. [PMID: 28188103 DOI: 10.1016/j.molmed.2017.01.001] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 01/06/2017] [Accepted: 01/08/2017] [Indexed: 12/12/2022]
Abstract
Human pluripotent stem cells (hPSCs) are attractive sources for regenerative medicine and disease modeling in vitro. Directed hPSC differentiation approaches have derived from knowledge of cell development in vivo rather than from stochastic cell differentiation. Moreover, there has been great success in the generation of 3D organ-buds termed 'organoids' from hPSCs; these consist of a variety of cell types in vitro that mimic organs in vivo. The organoid bears great potential in the study of human diseases in vitro, especially when combined with CRISPR/Cas9-based genome-editing. We summarize the current literature describing organoid studies with a special focus on kidney organoids, and discuss goals and future opportunities for organoid-based studies.
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Affiliation(s)
- Ryuji Morizane
- Renal Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA; Harvard Stem Cell Institute, Cambridge, MA, USA.
| | - Joseph V Bonventre
- Renal Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA; Harvard Stem Cell Institute, Cambridge, MA, USA.
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43
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Essential roles for Cdx in murine primitive hematopoiesis. Dev Biol 2017; 422:115-124. [PMID: 28065741 DOI: 10.1016/j.ydbio.2017.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 01/03/2017] [Accepted: 01/04/2017] [Indexed: 11/24/2022]
Abstract
The Cdx transcription factors play essential roles in primitive hematopoiesis in the zebrafish where they exert their effects, in part, through regulation of hox genes. Defects in hematopoiesis have also been reported in Cdx mutant murine embryonic stem cell models, however, to date no mouse model reflecting the zebrafish Cdx mutant hematopoietic phenotype has been described. This is likely due, in part, to functional redundancy among Cdx members and the early lethality of Cdx2 null mutants. To circumvent these limitations, we used Cre-mediated conditional deletion to assess the impact of concomitant loss of Cdx1 and Cdx2 on murine primitive hematopoiesis. We found that Cdx1/Cdx2 double mutants exhibited defects in primitive hematopoiesis and yolk sac vasculature concomitant with reduced expression of several genes encoding hematopoietic transcription factors including Scl/Tal1. Chromatin immunoprecipitation analysis revealed that Scl was occupied by Cdx2 in vivo, and Cdx mutant hematopoietic yolk sac differentiation defects could be rescued by expression of exogenous Scl. These findings demonstrate critical roles for Cdx members in murine primitive hematopoiesis upstream of Scl.
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44
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Abstract
Cytokines of the transforming growth factor β (TGF-β) family, including TGF-βs, bone morphogenic proteins (BMPs), activins, and Nodal, play crucial roles in embryonic development and adult tissue homeostasis by regulating cell proliferation, survival, and differentiation, as well as stem-cell self-renewal and lineage-specific differentiation. Smad proteins are critical downstream mediators of these signaling activities. In addition to regulating the transcription of direct target genes of TGF-β, BMP, activin, or Nodal, Smad proteins also participate in extensive cross talk with other signaling pathways, often in a cell-type- or developmental stage-specific manner. These combinatorial signals often produce context-, time-, and location-dependent biological outcomes that are critical for development. This review discusses recent progress in our understanding of the cross talk between Smad proteins and signaling pathways of Wnt, Notch, Hippo, Hedgehog (Hh), mitogen-activated protein (MAP), kinase, phosphoinositide 3-kinase (PI3K)-Akt, nuclear factor κB (NF-κB), and Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathways.
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Affiliation(s)
- Kunxin Luo
- Department of Molecular and Cell Biology, University of California, Berkeley, and Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
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45
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Luo K. Signaling Cross Talk between TGF-β/Smad and Other Signaling Pathways. Cold Spring Harb Perspect Biol 2017. [PMID: 27836834 DOI: 10.1101/cshperspect] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cytokines of the transforming growth factor β (TGF-β) family, including TGF-βs, bone morphogenic proteins (BMPs), activins, and Nodal, play crucial roles in embryonic development and adult tissue homeostasis by regulating cell proliferation, survival, and differentiation, as well as stem-cell self-renewal and lineage-specific differentiation. Smad proteins are critical downstream mediators of these signaling activities. In addition to regulating the transcription of direct target genes of TGF-β, BMP, activin, or Nodal, Smad proteins also participate in extensive cross talk with other signaling pathways, often in a cell-type- or developmental stage-specific manner. These combinatorial signals often produce context-, time-, and location-dependent biological outcomes that are critical for development. This review discusses recent progress in our understanding of the cross talk between Smad proteins and signaling pathways of Wnt, Notch, Hippo, Hedgehog (Hh), mitogen-activated protein (MAP), kinase, phosphoinositide 3-kinase (PI3K)-Akt, nuclear factor κB (NF-κB), and Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathways.
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Affiliation(s)
- Kunxin Luo
- Department of Molecular and Cell Biology, University of California, Berkeley, and Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
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46
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Morizane R, Bonventre JV. Generation of nephron progenitor cells and kidney organoids from human pluripotent stem cells. Nat Protoc 2016; 12:195-207. [PMID: 28005067 DOI: 10.1038/nprot.2016.170] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A variety of protocols have been developed that demonstrate the capability to differentiate human pluripotent stem cells (hPSCs) into kidney structures. Our goal was to develop a high-efficiency protocol to generate nephron progenitor cells (NPCs) and kidney organoids to facilitate applications for tissue engineering, disease modeling and chemical screening. Here, we describe a detailed protocol resulting in high-efficiency production (80-90%) of NPCs from hPSCs within 9 d of differentiation. Kidney organoids were generated from NPCs within 12 d with high reproducibility using 96-well plates suitable for chemical screening. The protocol requires skills for culturing hPSCs and careful attention to morphological changes indicative of differentiation. This kidney organoid system provides a platform for studies of human kidney development, modeling of kidney diseases, nephrotoxicity and kidney regeneration. The system provides a model for in vitro study of kidney intracellular and intercompartmental interactions using differentiated human cells in an appropriate nephron and stromal context.
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Affiliation(s)
- Ryuji Morizane
- Renal Division, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA.,Harvard Stem Cell Institute, Cambridge, Massachusetts, USA
| | - Joseph V Bonventre
- Renal Division, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA.,Harvard Stem Cell Institute, Cambridge, Massachusetts, USA
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47
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Chen L, Groenewoud A, Tulotta C, Zoni E, Kruithof-de Julio M, van der Horst G, van der Pluijm G, Ewa Snaar-Jagalska B. A zebrafish xenograft model for studying human cancer stem cells in distant metastasis and therapy response. Methods Cell Biol 2016; 138:471-496. [PMID: 28129855 DOI: 10.1016/bs.mcb.2016.10.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Lethal and incurable bone metastasis is one of the main causes of death in multiple types of cancer. A small subpopulation of cancer stem/progenitor-like cells (CSCs), also known as tumor-initiating cells from heterogenetic cancer is considered to mediate bone metastasis. Although over the past decades numerous studies have been performed in different types of cancer, it is still difficult to track small numbers of CSCs during the onset of metastasis. With use of noninvasive high-resolution imaging, transparent zebrafish embryos can be employed to dynamically visualize cancer progression and reciprocal interaction with stroma in a living organism. Recently we established a zebrafish CSC-xenograft model to visually and functionally analyze the role of CSCs and their interactions with the microenvironment at the onset of metastasis. Given the highly conserved human and zebrafish genome, transplanted human cancer cells are able to respond to zebrafish cytokines, modulate the zebrafish microenvironment, and take advantage of the zebrafish stroma during cancer progression. This chapter delineates the zebrafish CSC-xenograft model as a useful tool for both CSC biological study and anticancer drug screening.
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Affiliation(s)
- L Chen
- Leiden University, Leiden, The Netherlands
| | | | - C Tulotta
- Leiden University, Leiden, The Netherlands
| | - E Zoni
- University of Bern, Bern, Switzerland; Leiden University Medical Centre, Leiden, The Netherlands
| | - M Kruithof-de Julio
- University of Bern, Bern, Switzerland; Leiden University Medical Centre, Leiden, The Netherlands
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48
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Green YS, Kwon S, Mimoto MS, Xie Y, Christian JL. Tril targets Smad7 for degradation to allow hematopoietic specification in Xenopus embryos. Development 2016; 143:4016-4026. [PMID: 27633996 DOI: 10.1242/dev.141812] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 09/01/2016] [Indexed: 12/21/2022]
Abstract
In Xenopus laevis, bone morphogenetic proteins (Bmps) induce expression of the transcription factor Gata2 during gastrulation, and Gata2 is required in both ectodermal and mesodermal cells to enable mesoderm to commit to a hematopoietic fate. Here, we identify tril as a Gata2 target gene that is required in both ectoderm and mesoderm for primitive hematopoiesis to occur. Tril is a transmembrane protein that functions as a co-receptor for Toll-like receptors to mediate innate immune responses in the adult brain, but developmental roles for this molecule have not been identified. We show that Tril function is required both upstream and downstream of Bmp receptor-mediated Smad1 phosphorylation for induction of Bmp target genes. Mechanistically, Tril triggers degradation of the Bmp inhibitor Smad7. Tril-dependent downregulation of Smad7 relieves repression of endogenous Bmp signaling during gastrulation and this enables mesodermal progenitors to commit to a blood fate. Thus, Tril is a novel component of a Bmp-Gata2 positive-feedback loop that plays an essential role in hematopoietic specification.
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Affiliation(s)
- Yangsook Song Green
- Department of Neurobiology and Anatomy and Internal Medicine, Division of Hematology and Hematologic Malignancies, University of Utah, School of Medicine, Salt Lake City, UT 84132, USA
| | - Sunjong Kwon
- Department of Cell and Developmental Biology, Oregon Health and Sciences University, School of Medicine, Portland, OR 97239-3098, USA
| | - Mizuho S Mimoto
- Department of Cell and Developmental Biology, Oregon Health and Sciences University, School of Medicine, Portland, OR 97239-3098, USA
| | - Yuanyuan Xie
- Department of Neurobiology and Anatomy and Internal Medicine, Division of Hematology and Hematologic Malignancies, University of Utah, School of Medicine, Salt Lake City, UT 84132, USA
| | - Jan L Christian
- Department of Neurobiology and Anatomy and Internal Medicine, Division of Hematology and Hematologic Malignancies, University of Utah, School of Medicine, Salt Lake City, UT 84132, USA
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49
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Role of the bone morphogenic protein pathway in developmental haemopoiesis and leukaemogenesis. Biochem Soc Trans 2016; 44:1455-1463. [DOI: 10.1042/bst20160104] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 06/23/2016] [Accepted: 06/27/2016] [Indexed: 11/17/2022]
Abstract
Myeloid leukaemias share the common characteristics of being stem cell-derived clonal diseases, characterised by excessive proliferation of one or more myeloid lineage. Chronic myeloid leukaemia (CML) arises from a genetic alteration in a normal haemopoietic stem cell (HSC) giving rise to a leukaemic stem cell (LSC) within the bone marrow (BM) ‘niche’. CML is characterised by the presence of the oncogenic tyrosine kinase fusion protein breakpoint cluster region-abelson murine leukaemia viral oncogene homolog 1 (BCR-ABL), which is responsible for driving the disease through activation of downstream signal transduction pathways. Recent evidence from our group and others indicates that important regulatory networks involved in establishing primitive and definitive haemopoiesis during development are reactivated in myeloid leukaemia, giving rise to an LSC population with altered self-renewal and differentiation properties. In this review, we explore the role the bone morphogenic protein (BMP) signalling plays in stem cell pluripotency, developmental haemopoiesis, HSC maintenance and the implication of altered BMP signalling on LSC persistence in the BM niche. Overall, we emphasise how the BMP and Wnt pathways converge to alter the Cdx–Hox axis and the implications of this in the pathogenesis of myeloid malignancies.
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50
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Baik J, Magli A, Tahara N, Swanson SA, Koyano-Nakagawa N, Borges L, Stewart R, Garry DJ, Kawakami Y, Thomson JA, Perlingeiro RCR. Endoglin integrates BMP and Wnt signalling to induce haematopoiesis through JDP2. Nat Commun 2016; 7:13101. [PMID: 27713415 PMCID: PMC5059784 DOI: 10.1038/ncomms13101] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 09/02/2016] [Indexed: 01/05/2023] Open
Abstract
Mechanisms of haematopoietic and cardiac patterning remain poorly understood. Here we show that the BMP and Wnt signalling pathways are integrated in an endoglin (Eng)-dependent manner in cardiac and haematopoietic lineage specification. Eng is expressed in early mesoderm and marks both haematopoietic and cardiac progenitors. In the absence of Eng, yolk sacs inappropriately express the cardiac marker, Nkx2.5. Conversely, high levels of Eng in vitro and in vivo increase haematopoiesis and inhibit cardiogenesis. Levels of Eng determine the activation of both BMP and Wnt pathways, which are integrated downstream of Eng by phosphorylation of Smad1 by Gsk3. By interrogating Eng-dependent Wnt-mediated transcriptional changes, we identify Jdp2 as a key Eng-dependent Wnt target, sufficient to establish haematopoietic fate in early mesoderm when BMP and Wnt crosstalk is disturbed. These studies provide mechanistic insight into the integration of BMP and Wnt signalling in the establishment of haematopoietic and cardiac progenitors during embryogenesis. How both BMP and Wnt signalling pathways regulate lineage specification early in development is unclear. Here, the authors show that endoglin via Jdp2, an AP-1 family member, modulates BMP and Wnt signalling to commit mesodermal progenitors to a haematopoietic fate at the expense of the cardiac lineage.
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Affiliation(s)
- June Baik
- Department of Medicine, Lillehei Heart Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Alessandro Magli
- Department of Medicine, Lillehei Heart Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Naoyuki Tahara
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, Minnesota 55455, USA.,Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Scott A Swanson
- Regerative Biology, Morgridge Institute for Research, Madison, Wisconsin 53715, USA
| | - Naoko Koyano-Nakagawa
- Department of Medicine, Lillehei Heart Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Luciene Borges
- Department of Medicine, Lillehei Heart Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Ron Stewart
- Regerative Biology, Morgridge Institute for Research, Madison, Wisconsin 53715, USA
| | - Daniel J Garry
- Department of Medicine, Lillehei Heart Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Yasuhiko Kawakami
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, Minnesota 55455, USA.,Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - James A Thomson
- Regerative Biology, Morgridge Institute for Research, Madison, Wisconsin 53715, USA
| | - Rita C R Perlingeiro
- Department of Medicine, Lillehei Heart Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
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