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De Coninck S, De Smedt R, Lintermans B, Reunes L, Kosasih HJ, Reekmans A, Brown LM, Van Roy N, Palhais B, Roels J, Van der Linden M, Van Dorpe J, Ntziachristos P, Van Delft FW, Mansour MR, Pieters T, Lammens T, De Moerloose B, De Bock CE, Goossens S, Van Vlierberghe P. Targeting hyperactive platelet-derived growth factor receptor-β signaling in T-cell acute lymphoblastic leukemia and lymphoma. Haematologica 2024; 109:1373-1384. [PMID: 37941480 PMCID: PMC11063843 DOI: 10.3324/haematol.2023.283981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 11/02/2023] [Indexed: 11/10/2023] Open
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) and T-cell lymphoblastic lymphoma (T-LBL) are rare aggressive hematologic malignancies. Current treatment consists of intensive chemotherapy leading to 80% overall survival but is associated with severe toxic side effects. Furthermore, 10-20% of patients still die from relapsed or refractory disease providing a strong rationale for more specific, targeted therapeutic strategies with less toxicities. Here, we report a novel MYH9::PDGFRB fusion in a T-LBL patient, and demonstrate that this fusion product is constitutively active and sufficient to drive oncogenic transformation in vitro and in vivo. Expanding our analysis more broadly across T-ALL, we found a T-ALL cell line and multiple patient-derived xenograft models with PDGFRB hyperactivation in the absence of a fusion, with high PDGFRB expression in TLX3 and HOXA T-ALL molecular subtypes. To target this PDGFRB hyperactivation, we evaluated the therapeutic effects of a selective PDGFRB inhibitor, CP-673451, both in vitro and in vivo and demonstrated sensitivity if the receptor is hyperactivated. Altogether, our work reveals that hyperactivation of PDGFRB is an oncogenic driver in T-ALL/T-LBL, and that screening T-ALL/T-LBL patients for phosphorylated PDGFRB levels can serve as a biomarker for PDGFRB inhibition as a novel targeted therapeutic strategy in their treatment regimen.
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Affiliation(s)
- Stien De Coninck
- Lab of Normal and Malignant Hematopoiesis, Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent
| | - Renate De Smedt
- Lab of Normal and Malignant Hematopoiesis, Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent
| | - Beatrice Lintermans
- Lab of Normal and Malignant Hematopoiesis, Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent
| | - Lindy Reunes
- Lab of Normal and Malignant Hematopoiesis, Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Department of Biomolecular Medicine, Ghent University, 9000 Ghent
| | - Hansen J Kosasih
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW, Australia; School of Clinical Medicine, UNSW Medicine and Health, UNSW Sydney, Sydney, NSW
| | - Alexandra Reekmans
- Lab of Normal and Malignant Hematopoiesis, Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent
| | - Lauren M Brown
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW, Australia; School of Clinical Medicine, UNSW Medicine and Health, UNSW Sydney, Sydney, NSW
| | - Nadine Van Roy
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Lab for Translational Oncogenomics and Bioinformatics, Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium; Pediatric Precision Oncology Lab, Department of Biomolecular Medicine, Ghent University, 9000 Ghent
| | - Bruno Palhais
- Lab of Normal and Malignant Hematopoiesis, Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Department of Biomolecular Medicine, Ghent University, 9000 Ghent
| | - Juliette Roels
- Lab of Normal and Malignant Hematopoiesis, Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent
| | - Malaika Van der Linden
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Department of Pathology, Ghent University and Ghent University Hospital, 9000 Ghent
| | - Jo Van Dorpe
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Department of Pathology, Ghent University and Ghent University Hospital, 9000 Ghent
| | - Panagiotis Ntziachristos
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Department of Biomolecular Medicine, Ghent University, 9000 Ghent
| | - Frederik W Van Delft
- Wolfson Childhood Cancer Research Centre, Newcastle University Centre for Cancer, Newcastle upon Tyne
| | - Marc R Mansour
- Department of Developmental Biology and Cancer, Institute of Child Health, University College London
| | - Tim Pieters
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Department of Biomolecular Medicine, Ghent University, 9000 Ghent
| | - Tim Lammens
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, 9000 Ghent, Belgium; Department of Pediatric Hematology-Oncology and Stem Cell Transplantation, Ghent University Hospital, 9000 Ghent
| | - Barbara De Moerloose
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Department of Pediatric Hematology-Oncology and Stem Cell Transplantation, Ghent University Hospital, 9000 Ghent
| | - Charles E De Bock
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW, Australia; School of Clinical Medicine, UNSW Medicine and Health, UNSW Sydney, Sydney, NSW
| | - Steven Goossens
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium; Unit for Translational Research in Oncology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent.
| | - Pieter Van Vlierberghe
- Lab of Normal and Malignant Hematopoiesis, Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent
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2
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Randall J, Evans K, Watts B, Kosasih HJ, Smith CM, Earley EJ, Erickson SW, Jocoy EL, Bult CJ, Teicher BA, de Bock CE, Smith MA, Lock RB. In vivo activity of the second-generation proteasome inhibitor ixazomib against pediatric T-cell acute lymphoblastic leukemia xenografts. Exp Hematol 2024; 132:104176. [PMID: 38320689 PMCID: PMC10978271 DOI: 10.1016/j.exphem.2024.104176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/20/2023] [Accepted: 01/03/2024] [Indexed: 02/16/2024]
Abstract
The overall survival rate of patients with T-cell acute lymphoblastic leukemia (T-ALL) is now 90%, although patients with relapsed T-ALL face poor prognosis. The ubiquitin-proteasome system maintains normal protein homeostasis, and aberrations in this pathway are associated with T-ALL. Here we demonstrate the in vitro and in vivo activity of ixazomib, a second-generation orally available, reversible, and selective proteasome inhibitor against pediatric T-ALL cell lines and patient-derived xenografts (PDXs) grown orthotopically in immunodeficient NOD.Cg-PrkdcscidIL2rgtm1Wjl/SzJAusb (NSG) mice. Ixazomib was highly potent in vitro, with half-maximal inhibitory concentration (IC50) values in the low nanomolar range. As a monotherapy, ixazomib significantly extended mouse event-free survival of five out of eight T-ALL PDXs in vivo.
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Affiliation(s)
- Joanna Randall
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Clinical Medicine, University of New South Wales Medicine & Health, Centre for Childhood Cancer Research, University of New South Wales Sydney, Sydney, NSW, Australia
| | - Kathryn Evans
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Clinical Medicine, University of New South Wales Medicine & Health, Centre for Childhood Cancer Research, University of New South Wales Sydney, Sydney, NSW, Australia
| | - Ben Watts
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Clinical Medicine, University of New South Wales Medicine & Health, Centre for Childhood Cancer Research, University of New South Wales Sydney, Sydney, NSW, Australia
| | - Hansen J Kosasih
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Clinical Medicine, University of New South Wales Medicine & Health, Centre for Childhood Cancer Research, University of New South Wales Sydney, Sydney, NSW, Australia
| | - Christopher M Smith
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Clinical Medicine, University of New South Wales Medicine & Health, Centre for Childhood Cancer Research, University of New South Wales Sydney, Sydney, NSW, Australia
| | - Eric J Earley
- RTI International, Research Triangle Park, Research Triangle, NC
| | | | | | | | | | - Charles E de Bock
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Clinical Medicine, University of New South Wales Medicine & Health, Centre for Childhood Cancer Research, University of New South Wales Sydney, Sydney, NSW, Australia
| | | | - Richard B Lock
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Clinical Medicine, University of New South Wales Medicine & Health, Centre for Childhood Cancer Research, University of New South Wales Sydney, Sydney, NSW, Australia.
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3
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Kosasih HJ, Healey G, Brennan MS, Bjelosevic S, Sadras T, Jalud FB, Ibnat T, Ng AP, Mayoh C, Mao J, Tax G, Ludlow LEA, Johnstone RW, Herold MJ, Khaw SL, de Bock CE, Ekert PG. A novel MYB::PAIP1 oncogenic fusion in pediatric blastic plasmacytoid dendritic cell neoplasm (BPDCN) is dependent on BCL2 expression and is sensitive to venetoclax. Hemasphere 2024; 8:e1. [PMID: 38435422 PMCID: PMC10878182 DOI: 10.1002/hem3.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 12/16/2023] [Indexed: 03/05/2024] Open
Affiliation(s)
- Hansen J. Kosasih
- Murdoch Children's Research InstituteParkvilleVictoriaAustralia
- Children's Cancer Institute, Lowy Cancer Research CentreUNSW SydneyKensingtonNew South WalesAustralia
| | - Gerry Healey
- The Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
- Olivia Newton‐John Cancer Research InstituteHeidelbergVictoriaAustralia
| | - Margs S. Brennan
- The Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
- Department of Medicine Huddinge, Centre for Haematology and Regenerative MedicineKarolinska InstitutetStockholmSweden
| | - Stefan Bjelosevic
- Peter MacCallum Cancer CentreMelbourneVictoriaAustralia
- The Sir Peter MacCallum Department of OncologyUniversity of MelbourneParkvilleVictoriaAustralia
| | - Teresa Sadras
- Peter MacCallum Cancer CentreMelbourneVictoriaAustralia
- The Sir Peter MacCallum Department of OncologyUniversity of MelbourneParkvilleVictoriaAustralia
| | | | - Tasnia Ibnat
- Peter MacCallum Cancer CentreMelbourneVictoriaAustralia
| | - Ashley P. Ng
- The Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
- The Sir Peter MacCallum Department of OncologyUniversity of MelbourneParkvilleVictoriaAustralia
- Department of BiologyThe University of MelbourneParkvilleVictoriaAustralia
| | - Chelsea Mayoh
- Children's Cancer Institute, Lowy Cancer Research CentreUNSW SydneyKensingtonNew South WalesAustralia
| | - Jie Mao
- Children's Cancer Institute, Lowy Cancer Research CentreUNSW SydneyKensingtonNew South WalesAustralia
| | - Gabor Tax
- Children's Cancer Institute, Lowy Cancer Research CentreUNSW SydneyKensingtonNew South WalesAustralia
- School of Clinical Medicine, UNSW Medicine & HealthUNSW SydneySydneyNew South WalesAustralia
| | - Louise E. A. Ludlow
- Murdoch Children's Research InstituteParkvilleVictoriaAustralia
- Department of PaediatricsUniversity of MelbourneParkvilleVictoriaAustralia
| | - Ricky W. Johnstone
- Peter MacCallum Cancer CentreMelbourneVictoriaAustralia
- The Sir Peter MacCallum Department of OncologyUniversity of MelbourneParkvilleVictoriaAustralia
| | - Marco J. Herold
- The Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
- Olivia Newton‐John Cancer Research InstituteHeidelbergVictoriaAustralia
- Department of Medical BiologyUniversity of MelbourneParkvilleVictoriaAustralia
- School of Cancer MedicineLa Trobe UniversityHeidelbergVictoriaAustralia
| | - Seong L. Khaw
- Murdoch Children's Research InstituteParkvilleVictoriaAustralia
| | - Charles E. de Bock
- Children's Cancer Institute, Lowy Cancer Research CentreUNSW SydneyKensingtonNew South WalesAustralia
- School of Women's and Children's HealthUNSW SydneyKensingtonNew South WalesAustralia
| | - Paul G. Ekert
- Children's Cancer Institute, Lowy Cancer Research CentreUNSW SydneyKensingtonNew South WalesAustralia
- Peter MacCallum Cancer CentreMelbourneVictoriaAustralia
- The Sir Peter MacCallum Department of OncologyUniversity of MelbourneParkvilleVictoriaAustralia
- School of Clinical Medicine, UNSW Medicine & HealthUNSW SydneySydneyNew South WalesAustralia
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4
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Gu A, Schmidt B, Lonsdale A, Jalaldeen R, Kosasih HJ, Brown LM, Sadras T, Ekert PG, Oshlack A. TALLSorts: a T-cell acute lymphoblastic leukemia subtype classifier using RNA-seq expression data. Blood Adv 2023; 7:7402-7406. [PMID: 37903323 PMCID: PMC10758738 DOI: 10.1182/bloodadvances.2023010385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 09/18/2023] [Accepted: 10/11/2023] [Indexed: 11/01/2023] Open
Affiliation(s)
- Allen Gu
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Royal Melbourne Hospital, Parkville, VIC, Australia
| | - Breon Schmidt
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- School of BioSciences, University of Melbourne, Parkville, VIC, Australia
| | - Andrew Lonsdale
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
| | - Roshan Jalaldeen
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
| | - Hansen J. Kosasih
- Children’s Cancer Institute, Kensington, NSW, Australia
- Murdoch Children’s Research Institute, Parkville, VIC, Australia
| | | | - Teresa Sadras
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
| | - Paul G. Ekert
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
- Children’s Cancer Institute, Kensington, NSW, Australia
- Murdoch Children’s Research Institute, Parkville, VIC, Australia
- School of Clinical Medicine, University of New South Wales Medicine & Health, University of New South Wales, Kensington, NSW, Australia
| | - Alicia Oshlack
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
- School of Mathematics and Statistics, University of Melbourne, Parkville, VIC, Australia
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5
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Omari SA, Kosasih HJ, Chung T, de Bock CE. In vitro and in vivo modelling of mutant JAK3/STAT5 signaling in leukemia. Heliyon 2023; 9:e22085. [PMID: 38053908 PMCID: PMC10694137 DOI: 10.1016/j.heliyon.2023.e22085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/31/2023] [Accepted: 11/03/2023] [Indexed: 12/07/2023] Open
Abstract
Mutations within the IL7-R-JAK-STAT signaling pathway are important drivers of T-cell acute lymphoblastic leukemia (T-ALL). Here we describe the important steps required to generate retroviral particles for the stable expression of mutant JAK3 constructs that induce constitutive JAK/STAT signaling. These are subsequently used for the viral transduction of the IL-3 cytokine-dependent Ba/F3 cell line or murine hematopoietic stem and progenitor cells (HSPCs) for in vitro and in vivo modelling of cytokine-independent growth or leukemia initiation respectively.
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Affiliation(s)
- Sofia A. Omari
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney 2052, Australia
- School of Clinical Medicine, Medicine and Health, UNSW Sydney, Sydney 2052, Australia
| | - Hansen J. Kosasih
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney 2052, Australia
- School of Clinical Medicine, Medicine and Health, UNSW Sydney, Sydney 2052, Australia
| | - Thomas Chung
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney 2052, Australia
- School of Clinical Medicine, Medicine and Health, UNSW Sydney, Sydney 2052, Australia
| | - Charles E. de Bock
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney 2052, Australia
- School of Clinical Medicine, Medicine and Health, UNSW Sydney, Sydney 2052, Australia
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6
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Ryland GL, Umeda M, Holmfeldt L, Lehmann S, Herlin MK, Ma J, Khanlari M, Rubnitz JE, Ries RE, Kosasih HJ, Ekert PG, Goh HN, Tiong IS, Grimmond SM, Haferlach C, Day RB, Ley TJ, Meshinchi S, Ma X, Blombery P, Klco JM. Description of a novel subtype of acute myeloid leukemia defined by recurrent CBFB insertions. Blood 2023; 141:800-805. [PMID: 36179268 PMCID: PMC10273080 DOI: 10.1182/blood.2022017874] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/29/2022] [Accepted: 09/16/2022] [Indexed: 11/20/2022] Open
Affiliation(s)
- Georgina L. Ryland
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Centre for Cancer Research, University of Melbourne, Parkville, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
| | - Masayuki Umeda
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
| | - Linda Holmfeldt
- Department of Immunology, Genetics, and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
- The Beijer Laboratory, Uppsala, Sweden
| | - Sören Lehmann
- Department of Hematology, Karolinska University Hospital, Stockholm, Sweden
| | - Morten Krogh Herlin
- Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark
- Department of Pediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Jing Ma
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
| | - Mahsa Khanlari
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
| | - Jeffrey E. Rubnitz
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN
| | - Rhonda E. Ries
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | | | - Paul G. Ekert
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Parkville, VIC, Australia
- Discipline of Paediatrics and Child Health, School of Clinical Medicine, UNSW Medicine & Health, UNSW Sydney, Sydney, NSW, Australia
| | - Hwee Ngee Goh
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Ing S. Tiong
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Sean M. Grimmond
- Centre for Cancer Research, University of Melbourne, Parkville, VIC, Australia
| | | | - Ryan B. Day
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Timothy J. Ley
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Soheil Meshinchi
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Xiaotu Ma
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN
| | - Piers Blombery
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
- Clinical Haematology, Peter MacCallum Cancer Centre and Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Jeffery M. Klco
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
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Kosasih HJ, Last K, Rogerson FM, Golub SB, Gauci SJ, Russo VC, Stanton H, Wilson R, Lamande SR, Holden P, Fosang AJ. A Disintegrin and Metalloproteinase with Thrombospondin Motifs-5 (ADAMTS-5) Forms Catalytically Active Oligomers. J Biol Chem 2015; 291:3197-208. [PMID: 26668318 DOI: 10.1074/jbc.m115.704817] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 11/17/2015] [Indexed: 11/06/2022] Open
Abstract
The metalloproteinase ADAMTS-5 (A disintegrin and metalloproteinase with thrombospondin motifs) degrades aggrecan, a proteoglycan essential for cartilage structure and function. ADAMTS-5 is the major aggrecanase in mouse cartilage, and is also likely to be the major aggrecanase in humans. ADAMTS-5 is a multidomain enzyme, but the function of the C-terminal ancillary domains is poorly understood. We show that mutant ADAMTS-5 lacking the catalytic domain, but with a full suite of ancillary domains inhibits wild type ADAMTS activity, in vitro and in vivo, in a dominant-negative manner. The data suggest that mutant ADAMTS-5 binds to wild type ADAMTS-5; thus we tested the hypothesis that ADAMTS-5 associates to form oligomers. Co-elution, competition, and in situ PLA experiments using full-length and truncated recombinant ADAMTS-5 confirmed that ADAMTS-5 molecules interact, and showed that the catalytic and disintegrin-like domains support these intermolecular interactions. Cross-linking experiments revealed that recombinant ADAMTS-5 formed large, reduction-sensitive oligomers with a nominal molecular mass of ∼ 400 kDa. The oligomers were unimolecular and proteolytically active. ADAMTS-5 truncates comprising the disintegrin and/or catalytic domains were able to competitively block full-length ADAMTS-5-mediated aggrecan cleavage, measured by production of the G1-EGE(373) neoepitope. These results show that ADAMTS-5 oligomerization is required for full aggrecanase activity, and they provide evidence that blocking oligomerization inhibits ADAMTS-5 activity. The data identify the surface provided by the catalytic and disintegrin-like domains of ADAMTS-5 as a legitimate target for the design of aggrecanase inhibitors.
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Affiliation(s)
- Hansen J Kosasih
- From the Department of Paediatrics, University of Melbourne, Parkville 3052, Australia, the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Karena Last
- From the Department of Paediatrics, University of Melbourne, Parkville 3052, Australia, the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Fraser M Rogerson
- From the Department of Paediatrics, University of Melbourne, Parkville 3052, Australia, the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Suzanne B Golub
- From the Department of Paediatrics, University of Melbourne, Parkville 3052, Australia, the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Stephanie J Gauci
- the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Vincenzo C Russo
- the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Heather Stanton
- From the Department of Paediatrics, University of Melbourne, Parkville 3052, Australia, the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | | | - Shireen R Lamande
- the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia
| | - Paul Holden
- the Department of Orthopaedics & Rehabilitation, Oregon Health & Science University, Portland, Oregon 97239, and
| | - Amanda J Fosang
- From the Department of Paediatrics, University of Melbourne, Parkville 3052, Australia, the Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville 3052, Australia,
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