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Unnikrishnan A, Papaemmanuil E, Beck D, Deshpande NP, Verma A, Kumari A, Woll PS, Richards LA, Knezevic K, Chandrakanthan V, Thoms JAI, Tursky ML, Huang Y, Ali Z, Olivier J, Galbraith S, Kulasekararaj AG, Tobiasson M, Karimi M, Pellagatti A, Wilson SR, Lindeman R, Young B, Ramakrishna R, Arthur C, Stark R, Crispin P, Curnow J, Warburton P, Roncolato F, Boultwood J, Lynch K, Jacobsen SEW, Mufti GJ, Hellstrom-Lindberg E, Wilkins MR, MacKenzie KL, Wong JWH, Campbell PJ, Pimanda JE. Integrative Genomics Identifies the Molecular Basis of Resistance to Azacitidine Therapy in Myelodysplastic Syndromes. Cell Rep 2017; 20:572-585. [PMID: 28723562 DOI: 10.1016/j.celrep.2017.06.067] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 03/20/2017] [Accepted: 06/22/2017] [Indexed: 11/30/2022] Open
Abstract
Myelodysplastic syndromes and chronic myelomonocytic leukemia are blood disorders characterized by ineffective hematopoiesis and progressive marrow failure that can transform into acute leukemia. The DNA methyltransferase inhibitor 5-azacytidine (AZA) is the most effective pharmacological option, but only ∼50% of patients respond. A response only manifests after many months of treatment and is transient. The reasons underlying AZA resistance are unknown, and few alternatives exist for non-responders. Here, we show that AZA responders have more hematopoietic progenitor cells (HPCs) in the cell cycle. Non-responder HPC quiescence is mediated by integrin α5 (ITGA5) signaling and their hematopoietic potential improved by combining AZA with an ITGA5 inhibitor. AZA response is associated with the induction of an inflammatory response in HPCs in vivo. By molecular bar coding and tracking individual clones, we found that, although AZA alters the sub-clonal contribution to different lineages, founder clones are not eliminated and continue to drive hematopoiesis even in complete responders.
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Affiliation(s)
- Ashwin Unnikrishnan
- Adult Cancer Program, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; Prince of Wales Clinical School, UNSW, Sydney, NSW 2052, Australia.
| | - Elli Papaemmanuil
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Saffron Walden CB10 1SA, UK; Center for Molecular Oncology and Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Dominik Beck
- Adult Cancer Program, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; Prince of Wales Clinical School, UNSW, Sydney, NSW 2052, Australia; Centre for Health Technologies and the School of Software, University of Technology, Sydney, NSW 2007, Australia
| | - Nandan P Deshpande
- Systems Biology Initiative, School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, NSW 2052, Australia; School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, NSW 2052, Australia
| | - Arjun Verma
- Adult Cancer Program, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; Prince of Wales Clinical School, UNSW, Sydney, NSW 2052, Australia; Climate Change Cluster, University of Technology, Sydney, NSW 2007, Australia
| | - Ashu Kumari
- Children's Cancer Institute Australia, Sydney, NSW 2052, Australia
| | - Petter S Woll
- Department of Medicine, Center for Hematology and Regenerative Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden; Haematopoietic Stem Cell Biology Laboratory, MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Laura A Richards
- Children's Cancer Institute Australia, Sydney, NSW 2052, Australia
| | - Kathy Knezevic
- Adult Cancer Program, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; Prince of Wales Clinical School, UNSW, Sydney, NSW 2052, Australia
| | - Vashe Chandrakanthan
- Adult Cancer Program, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; Prince of Wales Clinical School, UNSW, Sydney, NSW 2052, Australia
| | - Julie A I Thoms
- Adult Cancer Program, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; Prince of Wales Clinical School, UNSW, Sydney, NSW 2052, Australia
| | - Melinda L Tursky
- Adult Cancer Program, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; Prince of Wales Clinical School, UNSW, Sydney, NSW 2052, Australia; Children's Cancer Institute Australia, Sydney, NSW 2052, Australia; Blood, Stem Cells and Cancer Research, St Vincent's Centre for Applied Medical Research, St Vincent's Hospital, Sydney, NSW 2010, Australia
| | - Yizhou Huang
- Adult Cancer Program, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; Prince of Wales Clinical School, UNSW, Sydney, NSW 2052, Australia; Centre for Health Technologies and the School of Software, University of Technology, Sydney, NSW 2007, Australia
| | - Zara Ali
- Children's Cancer Institute Australia, Sydney, NSW 2052, Australia
| | - Jake Olivier
- School of Mathematics and Statistics, UNSW, Sydney, NSW 2052, Australia
| | - Sally Galbraith
- School of Mathematics and Statistics, UNSW, Sydney, NSW 2052, Australia
| | - Austin G Kulasekararaj
- Department of Haematological Medicine, King's College London School of Medicine, London WC2R 2LS, UK
| | - Magnus Tobiasson
- Department of Medicine, Center for Hematology and Regenerative Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Mohsen Karimi
- Department of Medicine, Center for Hematology and Regenerative Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Andrea Pellagatti
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DU, United Kingdom
| | - Susan R Wilson
- School of Mathematics and Statistics, UNSW, Sydney, NSW 2052, Australia; Mathematical Sciences Institute, ANU, Canberra, ACT 0200, Australia
| | - Robert Lindeman
- Haematology Department, South Eastern Area Laboratory Services, Prince of Wales Hospital, Randwick, NSW 2031, Australia
| | - Boris Young
- Haematology Department, South Eastern Area Laboratory Services, Prince of Wales Hospital, Randwick, NSW 2031, Australia
| | | | | | - Richard Stark
- North Coast Cancer Institute, Port Macquarie, NSW 2444, Australia
| | | | - Jennifer Curnow
- Concord Repatriation General Hospital, Concord, NSW 2139, Australia
| | | | | | - Jacqueline Boultwood
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DU, United Kingdom
| | - Kevin Lynch
- Celgene International, 2017 Boudry, Switzerland
| | - Sten Eirik W Jacobsen
- Department of Medicine, Center for Hematology and Regenerative Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden; Haematopoietic Stem Cell Biology Laboratory, MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Ghulam J Mufti
- Department of Haematological Medicine, King's College London School of Medicine, London WC2R 2LS, UK
| | - Eva Hellstrom-Lindberg
- Department of Medicine, Center for Hematology and Regenerative Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Marc R Wilkins
- Systems Biology Initiative, School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, NSW 2052, Australia; School of Biotechnology and Biomolecular Sciences, UNSW, Sydney, NSW 2052, Australia; Ramaciotti Centre for Gene Function Analysis, UNSW, Sydney, NSW 2052, Australia
| | | | - Jason W H Wong
- Adult Cancer Program, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; Prince of Wales Clinical School, UNSW, Sydney, NSW 2052, Australia
| | - Peter J Campbell
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Saffron Walden CB10 1SA, UK.
| | - John E Pimanda
- Adult Cancer Program, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; Prince of Wales Clinical School, UNSW, Sydney, NSW 2052, Australia; Haematology Department, South Eastern Area Laboratory Services, Prince of Wales Hospital, Randwick, NSW 2031, Australia.
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de Almeida PG, Pinheiro GG, Nunes AM, Gonçalves AB, Thorsteinsdóttir S. Fibronectin assembly during early embryo development: A versatile communication system between cells and tissues. Dev Dyn 2016; 245:520-35. [PMID: 26845241 DOI: 10.1002/dvdy.24391] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 01/20/2016] [Accepted: 01/25/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Fibronectin extracellular matrix is essential for embryogenesis. Its assembly is a cell-mediated process where secreted fibronectin dimers bind to integrin receptors on receiving cells, which actively assemble fibronectin into a fibrillar matrix. During development, paracrine communication between tissues is crucial for coordinating morphogenesis, typically being mediated by growth factors and their receptors. Recent reports of situations where fibronectin is produced by one tissue and assembled by another, with implications on tissue morphogenesis, suggest that fibronectin assembly may also be a paracrine communication event in certain contexts. RESULTS Here we addressed which tissues express fibronectin (Fn1) while also localizing assembled fibronectin matrix and determining the mRNA expression and/or protein distribution pattern of integrins α5 and αV, α chains of the major fibronectin assembly receptors, during early chick and mouse development. We found evidence supporting a paracrine system in fibronectin matrix assembly in several tissues, including immature mesenchymal tissues, components of central and peripheral nervous system and developing muscle. CONCLUSIONS Thus, similarly to growth factor signaling, fibronectin matrix assembly during early development can be both autocrine and paracrine. We therefore propose that it be considered a cell-cell communication event at the same level and significance as growth factor signaling during embryogenesis.
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Affiliation(s)
- Patrícia Gomes de Almeida
- Centre for Ecology, Evolution and Environmental Change (cE3c), Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Gonçalo G Pinheiro
- Centre for Ecology, Evolution and Environmental Change (cE3c), Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Andreia M Nunes
- Centre for Ecology, Evolution and Environmental Change (cE3c), Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - André B Gonçalves
- Centre for Ecology, Evolution and Environmental Change (cE3c), Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Sólveig Thorsteinsdóttir
- Centre for Ecology, Evolution and Environmental Change (cE3c), Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
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