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Liu Y, Murazzi I, Fuller AM, Pan H, Irizarry-Negron VM, Devine A, Katti R, Skuli N, Ciotti GE, Pak K, Pack MA, Simon MC, Weber K, Cooper K, Eisinger-Mathason TK. Sarcoma Cells Secrete Hypoxia-Modified Collagen VI to Weaken the Lung Endothelial Barrier and Promote Metastasis. Cancer Res 2024; 84:977-993. [PMID: 38335278 PMCID: PMC10984776 DOI: 10.1158/0008-5472.can-23-0910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 12/21/2023] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
Intratumoral hypoxia correlates with metastasis and poor survival in patients with sarcoma. Using an impedance sensing assay and a zebrafish intravital microinjection model, we demonstrated here that the hypoxia-inducible collagen-modifying enzyme lysyl hydroxylase PLOD2 and its substrate collagen type VI (COLVI) weaken the lung endothelial barrier and promote transendothelial migration. Mechanistically, hypoxia-induced PLOD2 in sarcoma cells modified COLVI, which was then secreted into the vasculature. Upon reaching the apical surface of lung endothelial cells, modified COLVI from tumor cells activated integrin β1 (ITGβ1). Furthermore, activated ITGβ1 colocalized with Kindlin2, initiating their interaction with F-actin and prompting its polymerization. Polymerized F-actin disrupted endothelial adherens junctions and induced barrier dysfunction. Consistently, modified and secreted COLVI was required for the late stages of lung metastasis in vivo. Analysis of patient gene expression and survival data from The Cancer Genome Atlas (TCGA) revealed an association between the expression of both PLOD2 and COLVI and patient survival. Furthermore, high levels of COLVI were detected in surgically resected sarcoma metastases from patient lungs and in the blood of tumor-bearing mice. Together, these data identify a mechanism of sarcoma lung metastasis, revealing opportunities for therapeutic intervention. SIGNIFICANCE Collagen type VI modified by hypoxia-induced PLOD2 is secreted by sarcoma cells and binds to integrin β1 on endothelial cells to induce barrier dysfunction, which promotes sarcoma vascular dissemination and metastasis.
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Affiliation(s)
- Ying Liu
- Department of Pathology & Laboratory Medicine
- Penn Sarcoma Program
- Abramson Family Cancer Research Institute
- Perelman School of Medicine
- University of Pennsylvania, Philadelphia, PA, USA
| | | | - Ashley M. Fuller
- Department of Pathology & Laboratory Medicine
- Penn Sarcoma Program
- Abramson Family Cancer Research Institute
- Perelman School of Medicine
- University of Pennsylvania, Philadelphia, PA, USA
| | - Hehai Pan
- Department of Pathology & Laboratory Medicine
- Penn Sarcoma Program
- Abramson Family Cancer Research Institute
- Perelman School of Medicine
- University of Pennsylvania, Philadelphia, PA, USA
| | - Valerie M Irizarry-Negron
- Department of Pathology & Laboratory Medicine
- Penn Sarcoma Program
- Abramson Family Cancer Research Institute
- Perelman School of Medicine
- University of Pennsylvania, Philadelphia, PA, USA
| | - Ann Devine
- Department of Pathology & Laboratory Medicine
- Penn Sarcoma Program
- Abramson Family Cancer Research Institute
- Perelman School of Medicine
- University of Pennsylvania, Philadelphia, PA, USA
| | - Rohan Katti
- Department of Pathology & Laboratory Medicine
- Penn Sarcoma Program
- Abramson Family Cancer Research Institute
- Perelman School of Medicine
- University of Pennsylvania, Philadelphia, PA, USA
| | - Nicolas Skuli
- Penn Sarcoma Program
- Abramson Family Cancer Research Institute
- Perelman School of Medicine
- Department of Cell and Developmental Biology
- University of Pennsylvania, Philadelphia, PA, USA
| | - Gabrielle E. Ciotti
- Department of Pathology & Laboratory Medicine
- Penn Sarcoma Program
- Abramson Family Cancer Research Institute
- Perelman School of Medicine
- University of Pennsylvania, Philadelphia, PA, USA
| | - Koreana Pak
- Department of Pathology & Laboratory Medicine
- Penn Sarcoma Program
- Abramson Family Cancer Research Institute
- Perelman School of Medicine
- University of Pennsylvania, Philadelphia, PA, USA
| | - Michael A. Pack
- Perelman School of Medicine
- Department of Medicine
- University of Pennsylvania, Philadelphia, PA, USA
| | - M. Celeste Simon
- Penn Sarcoma Program
- Abramson Family Cancer Research Institute
- Perelman School of Medicine
- Department of Cell and Developmental Biology
- University of Pennsylvania, Philadelphia, PA, USA
| | - Kristy Weber
- Penn Sarcoma Program
- Perelman School of Medicine
- Department of Orthopedic Surgery
- University of Pennsylvania, Philadelphia, PA, USA
| | - Kumarasen Cooper
- Department of Pathology & Laboratory Medicine
- Perelman School of Medicine
- University of Pennsylvania, Philadelphia, PA, USA
| | - T.S. Karin Eisinger-Mathason
- Department of Pathology & Laboratory Medicine
- Penn Sarcoma Program
- Abramson Family Cancer Research Institute
- Perelman School of Medicine
- University of Pennsylvania, Philadelphia, PA, USA
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Chen YC, Martins TA, Marchica V, Panula P. Angiopoietin 1 and integrin beta 1b are vital for zebrafish brain development. Front Cell Neurosci 2024; 17:1289794. [PMID: 38235293 PMCID: PMC10792015 DOI: 10.3389/fncel.2023.1289794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/30/2023] [Indexed: 01/19/2024] Open
Abstract
Introduction Angiopoietin 1 (angpt1) is essential for angiogenesis. However, its role in neurogenesis is largely undiscovered. This study aimed to identify the role of angpt1 in brain development, the mode of action of angpt1, and its prime targets in the zebrafish brain. Methods We investigated the effects of embryonic brain angiogenesis and neural development using qPCR, in situ hybridization, microangiography, retrograde labeling, and immunostaining in the angpt1sa14264, itgb1bmi371, tekhu1667 mutant fish and transgenic overexpression of angpt1 in the zebrafish larval brains. Results We showed the co-localization of angpt1 with notch, delta, and nestin in the proliferation zone in the larval brain. Additionally, lack of angpt1 was associated with downregulation of TEK tyrosine kinase, endothelial (tek), and several neurogenic factors despite upregulation of integrin beta 1b (itgb1b), angpt2a, vascular endothelial growth factor aa (vegfaa), and glial markers. We further demonstrated that the targeted angpt1sa14264 and itgb1bmi371 mutant fish showed severely irregular cerebrovascular development, aberrant hindbrain patterning, expansion of the radial glial progenitors, downregulation of cell proliferation, deficiencies of dopaminergic, histaminergic, and GABAergic populations in the caudal hypothalamus. In contrast to angpt1sa14264 and itgb1bmi371 mutants, the tekhu1667 mutant fish regularly grew with no apparent phenotypes. Notably, the neural-specific angpt1 overexpression driven by the elavl3 (HuC) promoter significantly increased cell proliferation and neuronal progenitor cells but decreased GABAergic neurons, and this neurogenic activity was independent of its typical receptor tek. Discussion Our results prove that angpt1 and itgb1b, besides regulating vascular development, act as a neurogenic factor via notch and wnt signaling pathways in the neural proliferation zone in the developing brain, indicating a novel role of dual regulation of angpt1 in embryonic neurogenesis that supports the concept of angiopoietin-based therapeutics in neurological disorders.
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Affiliation(s)
- Yu-Chia Chen
- Department of Anatomy, University of Helsinki, Helsinki, Finland
- Zebrafish Unit, Helsinki Institute of Life Science (HiLIFE), Helsinki, Finland
| | - Tomás A. Martins
- Department of Anatomy, University of Helsinki, Helsinki, Finland
- Zebrafish Unit, Helsinki Institute of Life Science (HiLIFE), Helsinki, Finland
| | - Valentina Marchica
- Department of Anatomy, University of Helsinki, Helsinki, Finland
- Zebrafish Unit, Helsinki Institute of Life Science (HiLIFE), Helsinki, Finland
| | - Pertti Panula
- Department of Anatomy, University of Helsinki, Helsinki, Finland
- Zebrafish Unit, Helsinki Institute of Life Science (HiLIFE), Helsinki, Finland
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Chau TCY, Keyser MS, Da Silva JA, Morris EK, Yordanov TE, Duscyz KP, Paterson S, Yap AS, Hogan BM, Lagendijk AK. Dynamically regulated focal adhesions coordinate endothelial cell remodelling in developing vasculature. Development 2022; 149:285926. [PMID: 36314606 DOI: 10.1242/dev.200454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 10/20/2022] [Indexed: 12/13/2022]
Abstract
The assembly of a mature vascular network involves coordinated endothelial cell (EC) shape changes, including the process of EC elongation. How EC elongation is dynamically regulated in vivo is not fully understood. Here, we have generated a zebrafish mutant that is deficient for the integrin adaptor protein Talin 1 (Tln1). Using a new focal adhesion (FA) marker line expressing endothelial Vinculinb-eGFP, we demonstrate that EC FAs function dynamically and are lost in our tln1 mutants, allowing us to uncouple the primary roles of FAs in EC morphogenesis from the secondary effects that occur due to systemic vessel failure or loss of blood flow. Tln1 loss led to compromised F-actin rearrangements, perturbed EC elongation and disrupted cell-cell junction linearisation in vessel remodelling. Finally, chemical induction of actin polymerisation restored actin dynamics and EC elongation during vascular morphogenesis. Together, we identify that FAs are essential for EC elongation and junction linearisation in flow-pressured vessels and that they influence actin polymerisation in cellular morphogenesis. These observations can explain the severely compromised vessel beds and vascular leakage observed in mutant models that lack integrin signalling. This article has an associated 'The people behind the papers' interview.
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Affiliation(s)
- Tevin C Y Chau
- Division of Cell and Developmental Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Mikaela S Keyser
- Division of Cell and Developmental Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Jason A Da Silva
- Division of Cell and Developmental Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Elysse K Morris
- Division of Cell and Developmental Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Teodor E Yordanov
- Division of Cell and Developmental Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Kinga P Duscyz
- Division of Cell and Developmental Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Scott Paterson
- Organogenesis and Cancer Program, Peter MacCallum Cancer Centre and The PeterMac Callum Department of Oncology, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Alpha S Yap
- Division of Cell and Developmental Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Benjamin M Hogan
- Organogenesis and Cancer Program, Peter MacCallum Cancer Centre and The PeterMac Callum Department of Oncology, The University of Melbourne, Melbourne, Victoria 3000, Australia.,Department of Anatomy and Physiology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Anne Karine Lagendijk
- Division of Cell and Developmental Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia.,School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia
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Coxam B, Collins RT, Hußmann M, Huisman Y, Meier K, Jung S, Bartels-Klein E, Szymborska A, Finotto L, Helker CSM, Stainier DYR, Schulte-Merker S, Gerhardt H. Svep1 stabilises developmental vascular anastomosis in reduced flow conditions. Development 2022; 149:274823. [PMID: 35312765 PMCID: PMC8977097 DOI: 10.1242/dev.199858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 02/14/2022] [Indexed: 11/24/2022]
Abstract
Molecular mechanisms controlling the formation, stabilisation and maintenance of blood vessel connections remain poorly defined. Here, we identify blood flow and the large extracellular protein Svep1 as co-modulators of vessel anastomosis during developmental angiogenesis in zebrafish embryos. Both loss of Svep1 and blood flow reduction contribute to defective anastomosis of intersegmental vessels. The reduced formation and lumenisation of the dorsal longitudinal anastomotic vessel (DLAV) is associated with a compensatory increase in Vegfa/Vegfr pERK signalling, concomittant expansion of apelin-positive tip cells, but reduced expression of klf2a. Experimentally, further increasing Vegfa/Vegfr signalling can rescue the DLAV formation and lumenisation defects, whereas its inhibition dramatically exacerbates the loss of connectivity. Mechanistically, our results suggest that flow and Svep1 co-regulate the stabilisation of vascular connections, in part by modulating the Vegfa/Vegfr signalling pathway. Summary: Blood flow and the large extracellular matrix protein Svep1 jointly regulate vessel anastomosis during developmental angiogenesis in zebrafish embryos partly by modulating the Vegfa/Vegfr signalling pathway.
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Affiliation(s)
- Baptiste Coxam
- Integrative Vascular Biology Lab, Max-Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, Berlin 13125, Germany
- DZHK (German Center for Cardiovascular Research), Berlin 10785, Germany
| | - Russell T. Collins
- Integrative Vascular Biology Lab, Max-Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, Berlin 13125, Germany
- DZHK (German Center for Cardiovascular Research), Berlin 10785, Germany
| | - Melina Hußmann
- Institute of Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, WWU Münster, Mendelstraße 7, 48149 Münster, Germany
| | - Yvonne Huisman
- Institute of Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, WWU Münster, Mendelstraße 7, 48149 Münster, Germany
| | - Katja Meier
- Integrative Vascular Biology Lab, Max-Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, Berlin 13125, Germany
| | - Simone Jung
- Integrative Vascular Biology Lab, Max-Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, Berlin 13125, Germany
| | - Eireen Bartels-Klein
- Integrative Vascular Biology Lab, Max-Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, Berlin 13125, Germany
| | - Anna Szymborska
- Integrative Vascular Biology Lab, Max-Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, Berlin 13125, Germany
| | - Lise Finotto
- Vascular Patterning Laboratory, Center for Cancer Biology, VIB, Leuven 3000, Belgium
- Vascular Patterning Laboratory, Department of Oncology, KU Leuven, Leuven 3000, Belgium
| | - Christian S. M. Helker
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim 61231, Germany
| | - Didier Y. R. Stainier
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim 61231, Germany
| | - Stefan Schulte-Merker
- Institute of Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, WWU Münster, Mendelstraße 7, 48149 Münster, Germany
| | - Holger Gerhardt
- Integrative Vascular Biology Lab, Max-Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, Berlin 13125, Germany
- DZHK (German Center for Cardiovascular Research), Berlin 10785, Germany
- Berlin Institute of Health (BIH), Berlin 10178, Germany
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Rear traction forces drive adherent tissue migration in vivo. Nat Cell Biol 2022; 24:194-204. [PMID: 35165417 PMCID: PMC8868490 DOI: 10.1038/s41556-022-00844-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 01/06/2022] [Indexed: 12/16/2022]
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Yu HL, Hwang SPL. Zebrafish integrin a3b is required for cardiac contractility and cardiomyocyte proliferation. Biochem Biophys Res Commun 2022; 595:89-95. [PMID: 35121232 DOI: 10.1016/j.bbrc.2022.01.083] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 01/23/2022] [Indexed: 01/11/2023]
Abstract
In cardiac muscle cells, heterodimeric integrin transmembrane receptors are known to serve as mechanotransducers, translating mechanical force to biochemical signaling. However, the roles of many individual integrins have still not been delineated. In this report, we demonstrate that Itga3b is localized to the sarcolemma of cardiomyocytes from 24 to 96 hpf. We further show that heterozygous and homozygous itga3b/bdf mutant embryos display a cardiomyopathy phenotype, with decreased cardiac contractility and reduced cardiomyocyte number. Correspondingly, proliferation of ventricular and atrial cardiomyoctyes and ventricular epicardial cells is decreased in itga3b mutant hearts. The contractile dysfunction of itga3b mutants can be attributed to cardiomyocyte sarcomeric disorganization, including thin myofilaments with blurred and shortened Z-discs. Together, our results reveal that Itga3b localizes to the myocardium sarcolemma, and it is required for cardiac contractility and cardiomyocyte proliferation.
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Affiliation(s)
- Hsiang-Ling Yu
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, 202301, Taiwan
| | - Sheng-Ping L Hwang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, 202301, Taiwan; Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, 11529, Taiwan.
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7
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Nakajima H, Chiba A, Fukumoto M, Morooka N, Mochizuki N. Zebrafish Vascular Development: General and Tissue-Specific Regulation. J Lipid Atheroscler 2021; 10:145-159. [PMID: 34095009 PMCID: PMC8159758 DOI: 10.12997/jla.2021.10.2.145] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/07/2021] [Accepted: 01/29/2021] [Indexed: 01/03/2023] Open
Abstract
Circulation is required for the delivery of oxygen and nutrition to tissues and organs, as well as waste collection. Therefore, the heart and vessels develop first during embryogenesis. The circulatory system consists of the heart, blood vessels, and blood cells, which originate from the mesoderm. The gene expression pattern required for blood vessel development is predetermined by the hierarchical and sequential regulation of genes for the differentiation of mesodermal cells. Herein, we review how blood vessels form distinctly in different tissues or organs of zebrafish and how vessel formation is universally or tissue-specifically regulated by signal transduction pathways and blood flow. In addition, the unsolved issues of mutual contacts and interplay of circulatory organs during embryogenesis are discussed.
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Affiliation(s)
- Hiroyuki Nakajima
- Department of Cell Biology, National Cerebral and Cardiovascular Center Research Institute, Suita, Japan
| | - Ayano Chiba
- Department of Cell Biology, National Cerebral and Cardiovascular Center Research Institute, Suita, Japan
| | - Moe Fukumoto
- Department of Cell Biology, National Cerebral and Cardiovascular Center Research Institute, Suita, Japan
| | - Nanami Morooka
- Department of Cell Biology, National Cerebral and Cardiovascular Center Research Institute, Suita, Japan
| | - Naoki Mochizuki
- Department of Cell Biology, National Cerebral and Cardiovascular Center Research Institute, Suita, Japan
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Iida A, Wang Z, Hondo E, Sehara-Fujisawa A. Generation and evaluation of a transgenic zebrafish for tissue-specific expression of a dominant-negative Rho-associated protein kinase-2. Biochem Biophys Res Commun 2020; 525:S0006-291X(20)30323-5. [PMID: 32067738 DOI: 10.1016/j.bbrc.2020.02.055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 02/09/2020] [Indexed: 12/28/2022]
Abstract
The Ras homologous (Rho) proteins are a family of small GTPases, which regulate the cytoskeleton and are related to stress fibers and focal adhesion. The Rho-associated protein kinases (ROCK) constitute part of the Rho effectors that regulate cell shape and movement via phosphorylation of the myosin light chain and actin depolymerizing factor/cofilin. ROCK members are widely expressed and play roles in various cell types during vertebrate development and morphogenesis; therefore, ROCK-knockout animals exhibit multiple defects mostly initiated at the embryonic stage. Analyzing the distinct roles of ROCK in cell shape and movement during the embryonic stages using live mammalian models is difficult. Here, we inhibited the Rho/ROCK pathway in zebrafish, which is a small fish that can be conveniently used as a developmental animal model in place of mammals. To inhibit the Rho/ROCK pathway, we designed a dominant-negative ROCK-2 (dnROCK-2) that lacked the kinase domain and was under the control of an upstream activation sequence (UAS). To evaluate the effects of expression of dnROCK-2, transgenic zebrafish lines were generated by mating strains expressing the construct with counterpart strains expressing the Gal4 activator in target tissues. In this study, we crossed the dnROCK-2-expressing line with two such Gal4-expressing lines; (1) SAGFF(LF)73A for expression in the whole body, and (2) Tg(fli1a: Gal4FF)ubs4 for endothelial cell-specific expression. The phenotypes of the fish obtained were observed by fluorescent stereomicroscopy or confocal microscopy. Overexpression of dnROCK-2 in the whole body resulted in an inhibition of development, notably in cephalic formation, at 1-day post-fertilization (dpf). Confocal microscopy revealed that Hensen's zone became unclear in the trunk muscle fibers expressing dnROCK-2. Endothelial cell-specific expression of dnROCK-2 caused abnormalities in cardiovascular formation at 2-dpf. These results suggest that dnROCK-2 can act as a dominant negative construct of the Rho/ROCK pathway to affect regulation of the cytoskeleton. This construct could be a convenient tool to investigate the function of ROCK members in other vertebrate cell types.
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Affiliation(s)
- Atsuo Iida
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Furocho, Chikusa-ku, Nagoya, 464-8601, Japan; Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University, Shogo-in Kawahara-cho 53, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Zi Wang
- Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University, Shogo-in Kawahara-cho 53, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Eiichi Hondo
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Furocho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Atsuko Sehara-Fujisawa
- Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University, Shogo-in Kawahara-cho 53, Sakyo-ku, Kyoto, 606-8507, Japan
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Iida A, Wang Z, Sehara-Fujisawa A. Disruption of integrin α4 in zebrafish leads to cephalic hemorrhage during development. Genes Genet Syst 2019; 94:177-179. [PMID: 31582646 DOI: 10.1266/ggs.19-00033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Integrins, transmembrane molecules that facilitate cell-to-cell and cell-to-extracellular matrix interactions, are heterodimers that consist of an α- and β-subunit. The integrin α4 gene (itgα4) is expressed in various type of cells and tissues. Its biochemical functions and physiological roles have been revealed using cultured cell assays. In contrast, the primary effect caused by itgα4 deletion on vertebrate development is poorly understood, because knockout mice exhibit multiple defects that can lead to embryonic lethality in the uterus. Zebrafish are a convenient vertebrate model to investigate morphogenesis during embryogenesis, because of their external fertilization and subsequent development outside the female's body. Here, we generated a zebrafish mutant line named itgα4 ko108 using the CRISPR/Cas9 genome editing system; the mutant genome harbored an approximately 2.0-kb deletion in the itgα4 locus. A truncated transcript was detected in itgα4 (+/-) or (-/-) fish but not in (+/+) fish. The mutant transcript was hypothesized to encode a truncated Itgα4 protein due to a premature stop codon. itgα4 (-/-) embryos obtained from the mating of heterozygous parents exhibited no apparent phenotype during development at 24 hours post-fertilization (hpf). However, approximately half of them exhibited cephalic hemorrhage at 48 hpf. The incidence ratio was significantly higher than that in (+/+) or (+/-) embryos. Embryonic hemorrhage has also been reported previously in Itgα4 knockout mice. In contrast, embryonic lethality with the other defects reported in the knockout mice was not observed in our zebrafish model. Therefore, the mutant line itgα4 ko108 should be a useful model to investigate a physiological function for Itgα4 in the blood circulation system.
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Affiliation(s)
- Atsuo Iida
- Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University
| | - Zi Wang
- Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University
| | - Atsuko Sehara-Fujisawa
- Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University
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Rho SS, Kobayashi I, Oguri-Nakamura E, Ando K, Fujiwara M, Kamimura N, Hirata H, Iida A, Iwai Y, Mochizuki N, Fukuhara S. Rap1b Promotes Notch-Signal-Mediated Hematopoietic Stem Cell Development by Enhancing Integrin-Mediated Cell Adhesion. Dev Cell 2019; 49:681-696.e6. [DOI: 10.1016/j.devcel.2019.03.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 02/16/2019] [Accepted: 03/22/2019] [Indexed: 01/09/2023]
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Intracranial Aneurysms: Pathology, Genetics, and Molecular Mechanisms. Neuromolecular Med 2019; 21:325-343. [PMID: 31055715 DOI: 10.1007/s12017-019-08537-7] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 04/08/2019] [Indexed: 12/14/2022]
Abstract
Intracranial aneurysms (IA) are local dilatations in cerebral arteries that predominantly affect the circle of Willis. Occurring in approximately 2-5% of adults, these weakened areas are susceptible to rupture, leading to subarachnoid hemorrhage (SAH), a type of hemorrhagic stroke. Due to its early age of onset and poor prognosis, SAH accounts for > 25% of years lost for all stroke victims under the age of 65. In this review, we describe the cerebrovascular pathology associated with intracranial aneurysms. To understand IA genetics, we summarize syndromes with elevated incidence, genome-wide association studies (GWAS), whole exome studies on IA-affected families, and recent research that established definitive roles for Thsd1 (Thrombospondin Type 1 Domain Containing Protein 1) and Sox17 (SRY-box 17) in IA using genetically engineered mouse models. Lastly, we discuss the underlying molecular mechanisms of IA, including defects in vascular endothelial and smooth muscle cells caused by dysfunction in mechanotransduction, Thsd1/FAK (Focal Adhesion Kinase) signaling, and the Transforming Growth Factor β (TGF-β) pathway. As illustrated by THSD1 research, cell adhesion may play a significant role in IA.
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Giardoglou P, Beis D. On Zebrafish Disease Models and Matters of the Heart. Biomedicines 2019; 7:E15. [PMID: 30823496 PMCID: PMC6466020 DOI: 10.3390/biomedicines7010015] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/23/2019] [Accepted: 02/26/2019] [Indexed: 12/18/2022] Open
Abstract
Coronary artery disease (CAD) is the leading form of cardiovascular disease (CVD), which is the primary cause of mortality worldwide. It is a complex disease with genetic and environmental risk factor contributions. Reports in human and mammalian models elucidate age-associated changes in cardiac function. The diverse mechanisms involved in cardiac diseases remain at the center of the research interest to identify novel strategies for prevention and therapy. Zebrafish (Danio rerio) have emerged as a valuable vertebrate model to study cardiovascular development over the last few decades. The facile genetic manipulation via forward and reverse genetic approaches combined with noninvasive, high-resolution imaging and phenotype-based screening has provided new insights to molecular pathways that orchestrate cardiac development. Zebrafish can recapitulate human cardiac pathophysiology due to gene and regulatory pathways conservation, similar heart rate and cardiac morphology and function. Thus, generations of zebrafish models utilize the functional analysis of genes involved in CAD, which are derived from large-scale human population analysis. Here, we highlight recent studies conducted on cardiovascular research focusing on the benefits of the combination of genome-wide association studies (GWAS) with functional genomic analysis in zebrafish. We further summarize the knowledge obtained from zebrafish studies that have demonstrated the architecture of the fundamental mechanisms underlying heart development, homeostasis and regeneration at the cellular and molecular levels.
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Affiliation(s)
- Panagiota Giardoglou
- Zebrafish Disease Models Lab, Center for Clinical Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, 11527 Athens, Greece.
- School of Health Science and Education, Harokopio University, 17676 Athens, Greece.
| | - Dimitris Beis
- Zebrafish Disease Models Lab, Center for Clinical Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, 11527 Athens, Greece.
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13
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Gunawan F, Gentile A, Fukuda R, Tsedeke AT, Jiménez-Amilburu V, Ramadass R, Iida A, Sehara-Fujisawa A, Stainier DYR. Focal adhesions are essential to drive zebrafish heart valve morphogenesis. J Cell Biol 2019; 218:1039-1054. [PMID: 30635353 PMCID: PMC6400548 DOI: 10.1083/jcb.201807175] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 11/07/2018] [Accepted: 12/13/2018] [Indexed: 12/17/2022] Open
Abstract
Gunawan et al. analyze at single-cell resolution collective endocardial cell migration into the extracellular matrix and the cellular rearrangements forming leaflets during zebrafish heart valve formation. They show that focal adhesion activity driven by Integrin α5β1 and Talin1 are essential to drive cardiac valve morphogenesis in zebrafish. Elucidating the morphogenetic events that shape vertebrate heart valves, complex structures that prevent retrograde blood flow, is critical to understanding valvular development and aberrations. Here, we used the zebrafish atrioventricular (AV) valve to investigate these events in real time and at single-cell resolution. We report the initial events of collective migration of AV endocardial cells (ECs) into the extracellular matrix (ECM), and their subsequent rearrangements to form the leaflets. We functionally characterize integrin-based focal adhesions (FAs), critical mediators of cell–ECM interactions, during valve morphogenesis. Using transgenes to block FA signaling specifically in AV ECs as well as loss-of-function approaches, we show that FA signaling mediated by Integrin α5β1 and Talin1 promotes AV EC migration and overall shaping of the valve leaflets. Altogether, our investigation reveals the critical processes driving cardiac valve morphogenesis in vivo and establishes the zebrafish AV valve as a vertebrate model to study FA-regulated tissue morphogenesis.
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Affiliation(s)
- Felix Gunawan
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Alessandra Gentile
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Ryuichi Fukuda
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Ayele Taddese Tsedeke
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Vanesa Jiménez-Amilburu
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Radhan Ramadass
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Atsuo Iida
- Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | | | - Didier Y R Stainier
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
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14
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Kobayashi I, Kobayashi-Sun J, Hirakawa Y, Ouchi M, Yasuda K, Kamei H, Fukuhara S, Yamaguchi M. Dual role of Jam3b in early hematopoietic and vascular development. Development 2019; 147:dev.181040. [DOI: 10.1242/dev.181040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 12/11/2019] [Indexed: 12/23/2022]
Abstract
In order to efficiently derive hematopoietic stem cells (HSCs) from pluripotent precursors, it is crucial to understand how mesodermal cells acquire hematopoietic and endothelial identities, two divergent, but closely related cell fates. Although Npas4 has been recently identified as a conserved master regulator of hemato-vascular development, the molecular mechanisms underlying cell fate divergence between hematopoietic and vascular endothelial cells are still unclear. Here, we show in zebrafish that mesodermal cell differentiation into hematopoietic and vascular endothelial cells is regulated by Junctional adhesion molecule 3b (Jam3b) via two independent signaling pathways. Mutation of jam3b led to a reduction in npas4l expression in the posterior lateral plate mesoderm and defects in both hematopoietic and vascular development. Mechanistically, we uncover that Jam3b promotes endothelial specification by regulating npas4l expression through repression of the Rap1a-Erk signaling cascade. Jam3b subsequently promotes hematopoietic development, including HSCs, by regulating lrrc15 expression in endothelial precursors through the activation of an integrin-dependent signaling cascade. Our data provide insight into the divergent mechanisms for instructing hematopoietic or vascular fates from mesodermal cells.
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Affiliation(s)
- Isao Kobayashi
- Faculty of Biological Science and Technology, Institute of Science and Engineering, Kanazawa University, Ishikawa, Japan
| | - Jingjing Kobayashi-Sun
- Division of Life Sciences, Graduate School of Natural Science and Technology, Kanazawa University, Ishikawa, Japan
| | - Yuto Hirakawa
- Division of Life Sciences, Graduate School of Natural Science and Technology, Kanazawa University, Ishikawa, Japan
| | - Madoka Ouchi
- Division of Life Sciences, Graduate School of Natural Science and Technology, Kanazawa University, Ishikawa, Japan
| | - Koyuki Yasuda
- Faculty of Natural System, Institute of Science and Engineering, Kanazawa University, Ishikawa, Japan
| | - Hiroyasu Kamei
- Faculty of Biological Science and Technology, Institute of Science and Engineering, Kanazawa University, Ishikawa, Japan
| | - Shigetomo Fukuhara
- Department of Molecular Pathophysiology, Institute for Advanced Medical Sciences, Nippon Medical School, Kanagawa, Japan
| | - Masaaki Yamaguchi
- Faculty of Biological Science and Technology, Institute of Science and Engineering, Kanazawa University, Ishikawa, Japan
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