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van Leeuwen IMM, Higgins M, Campbell J, McCarthy AR, Sachweh MCC, Navarro AM, Laín S. Correction: Modulation of p53 C-Terminal Acetylation by Mdm2, p14ARF, and Cytoplasmic SirT2. Mol Cancer Ther 2023; 22:1503. [PMID: 38037420 DOI: 10.1158/1535-7163.mct-23-0759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
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2
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Ladds MJGW, van Leeuwen IMM, Drummond CJ, Chu S, Healy AR, Popova G, Fernández AP, Mollick T, Darekar S, Sedimbi SK, Nekulova M, Sachweh MCC, Campbell J, Higgins M, Tuck C, Popa M, Safont MM, Gelebart P, Fandalyuk Z, Thompson AM, Svensson R, Gustavsson AL, Johansson L, Färnegårdh K, Yngve U, Saleh A, Haraldsson M, D'Hollander ACA, Franco M, Zhao Y, Håkansson M, Walse B, Larsson K, Peat EM, Pelechano V, Lunec J, Vojtesek B, Carmena M, Earnshaw WC, McCarthy AR, Westwood NJ, Arsenian-Henriksson M, Lane DP, Bhatia R, McCormack E, Laín S. Publisher Correction: A DHODH inhibitor increases p53 synthesis and enhances tumor cell killing by p53 degradation blockage. Nat Commun 2023; 14:5019. [PMID: 37596290 PMCID: PMC10439212 DOI: 10.1038/s41467-023-40764-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2023] Open
Affiliation(s)
- Marcus J G W Ladds
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Ingeborg M M van Leeuwen
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Catherine J Drummond
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Su Chu
- Division of Hematology and Oncology, Comprehensive Cancer Center, 1720 2nd Avenue South, NP2540, Birmingham, AL, 35294-3300, USA
| | - Alan R Healy
- School of Chemistry and Biomedical Sciences Research Complex, University of St. Andrews and EaStCHEM, St. Andrews, Fife, Scotland, KY16 9ST, UK
| | - Gergana Popova
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Andrés Pastor Fernández
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Tanzina Mollick
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Suhas Darekar
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Saikiran K Sedimbi
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Marta Nekulova
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
- RECAMO, Masaryk Memorial Cancer Institute, Zluty Kopec 7, 65653, Brno, Czech Republic
| | - Marijke C C Sachweh
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Johanna Campbell
- Centre for Oncology and Molecular Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, Tayside, DD1 9SY, UK
| | - Maureen Higgins
- Centre for Oncology and Molecular Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, Tayside, DD1 9SY, UK
| | - Chloe Tuck
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Mihaela Popa
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
| | - Mireia Mayoral Safont
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
| | - Pascal Gelebart
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
| | - Zinayida Fandalyuk
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
| | - Alastair M Thompson
- Department of Breast Surgical Oncology, MD Anderson Cancer Center, Holcombe Boulevard, Houston, TX, 77030, USA
| | - Richard Svensson
- Department of Pharmacy, Uppsala University Drug Optimization and Pharmaceutical Profiling Platform (UDOPP), Department of Pharmacy, Uppsala University, SE-752 37, Uppsala, Sweden
| | - Anna-Lena Gustavsson
- Chemical Biology Consortium Sweden, Science for Life Laboratory, Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 21, Stockholm, Sweden
| | - Lars Johansson
- Chemical Biology Consortium Sweden, Science for Life Laboratory, Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 21, Stockholm, Sweden
| | - Katarina Färnegårdh
- Drug Discovery and Development Platform, Science for Life Laboratory, Tomtebodavägen 23, SE-171 21, Solna, Sweden
| | - Ulrika Yngve
- Department of Medicinal Chemistry, Science for Life Laboratories, Uppsala University, SE-751 23, Uppsala, Sweden
| | - Aljona Saleh
- Department of Medicinal Chemistry, Science for Life Laboratories, Uppsala University, SE-751 23, Uppsala, Sweden
| | - Martin Haraldsson
- Drug Discovery and Development Platform, Science for Life Laboratory, Tomtebodavägen 23, SE-171 21, Solna, Sweden
| | - Agathe C A D'Hollander
- School of Chemistry and Biomedical Sciences Research Complex, University of St. Andrews and EaStCHEM, St. Andrews, Fife, Scotland, KY16 9ST, UK
| | - Marcela Franco
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Yan Zhao
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle, NE1 7RU, UK
| | - Maria Håkansson
- SARomics Biostructures, Medicon Village, SE-223 81, Lund, Sweden
| | - Björn Walse
- SARomics Biostructures, Medicon Village, SE-223 81, Lund, Sweden
| | - Karin Larsson
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Emma M Peat
- The Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3JR, UK
| | - Vicent Pelechano
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - John Lunec
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle, NE1 7RU, UK
| | - Borivoj Vojtesek
- RECAMO, Masaryk Memorial Cancer Institute, Zluty Kopec 7, 65653, Brno, Czech Republic
| | - Mar Carmena
- The Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3JR, UK
| | - William C Earnshaw
- The Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3JR, UK
| | - Anna R McCarthy
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Nicholas J Westwood
- School of Chemistry and Biomedical Sciences Research Complex, University of St. Andrews and EaStCHEM, St. Andrews, Fife, Scotland, KY16 9ST, UK
| | - Marie Arsenian-Henriksson
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - David P Lane
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Ravi Bhatia
- Division of Hematology and Oncology, Comprehensive Cancer Center, 1720 2nd Avenue South, NP2540, Birmingham, AL, 35294-3300, USA
| | - Emmet McCormack
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
- Department of Medicine, Haematology Section, Haukeland University Hospital, Bergen, Norway
| | - Sonia Laín
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden.
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden.
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3
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Ladds MJGW, van Leeuwen IMM, Drummond CJ, Chu S, Healy AR, Popova G, Pastor Fernández A, Mollick T, Darekar S, Sedimbi SK, Nekulova M, Sachweh MCC, Campbell J, Higgins M, Tuck C, Popa M, Safont MM, Gelebart P, Fandalyuk Z, Thompson AM, Svensson R, Gustavsson AL, Johansson L, Färnegårdh K, Yngve U, Saleh A, Haraldsson M, D'Hollander ACA, Franco M, Zhao Y, Håkansson M, Walse B, Larsson K, Peat EM, Pelechano V, Lunec J, Vojtesek B, Carmena M, Earnshaw WC, McCarthy AR, Westwood NJ, Arsenian-Henriksson M, Lane DP, Bhatia R, McCormack E, Laín S. Publisher Correction: A DHODH inhibitor increases p53 synthesis and enhances tumor cell killing by p53 degradation blockage. Nat Commun 2018; 9:2071. [PMID: 29789663 PMCID: PMC5964109 DOI: 10.1038/s41467-018-04198-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Marcus J G W Ladds
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden.,SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Ingeborg M M van Leeuwen
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Catherine J Drummond
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Su Chu
- Division of Hematology and Oncology, Comprehensive Cancer Center, 1720 2nd Avenue South, NP2540, Birmingham, AL, 35294-3300, USA
| | - Alan R Healy
- School of Chemistry and Biomedical Sciences Research Complex, University of St. Andrews and EaStCHEM, St. Andrews, Fife, Scotland, KY16 9ST, UK
| | - Gergana Popova
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Andrés Pastor Fernández
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Tanzina Mollick
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden.,SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Suhas Darekar
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden.,SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Saikiran K Sedimbi
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden.,SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Marta Nekulova
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden.,RECAMO, Masaryk Memorial Cancer Institute, Zluty Kopec 7, 65653, Brno, Czech Republic
| | - Marijke C C Sachweh
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Johanna Campbell
- Centre for Oncology and Molecular Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, Tayside, DD1 9SY, UK
| | - Maureen Higgins
- Centre for Oncology and Molecular Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, Tayside, DD1 9SY, UK
| | - Chloe Tuck
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Mihaela Popa
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
| | - Mireia Mayoral Safont
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
| | - Pascal Gelebart
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
| | - Zinayida Fandalyuk
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
| | - Alastair M Thompson
- Department of Breast Surgical Oncology, MD Anderson Cancer Center, Holcombe Boulevard, Houston, 77030, USA
| | - Richard Svensson
- Department of Pharmacy, Uppsala University Drug Optimization and Pharmaceutical Profiling Platform (UDOPP), Department of Pharmacy, Uppsala University, SE-752 37, Uppsala, Sweden
| | - Anna-Lena Gustavsson
- Chemical Biology Consortium Sweden, Science for Life Laboratory, Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 21, Stockholm, Sweden
| | - Lars Johansson
- Chemical Biology Consortium Sweden, Science for Life Laboratory, Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 21, Stockholm, Sweden
| | - Katarina Färnegårdh
- Drug Discovery and Development Platform, Science for Life Laboratory, Tomtebodavägen 23, SE-171 21, Solna, Sweden
| | - Ulrika Yngve
- Department of Medicinal Chemistry, Science for Life Laboratories, Uppsala University, SE-751 23, Uppsala, Sweden
| | - Aljona Saleh
- Department of Medicinal Chemistry, Science for Life Laboratories, Uppsala University, SE-751 23, Uppsala, Sweden
| | - Martin Haraldsson
- Drug Discovery and Development Platform, Science for Life Laboratory, Tomtebodavägen 23, SE-171 21, Solna, Sweden
| | - Agathe C A D'Hollander
- School of Chemistry and Biomedical Sciences Research Complex, University of St. Andrews and EaStCHEM, St. Andrews, Fife, Scotland, KY16 9ST, UK
| | - Marcela Franco
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Yan Zhao
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle, NE1 7RU, UK
| | - Maria Håkansson
- SARomics Biostructures, Medicon Village, SE-223 81, Lund, Sweden
| | - Björn Walse
- SARomics Biostructures, Medicon Village, SE-223 81, Lund, Sweden
| | - Karin Larsson
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Emma M Peat
- The Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3JR, UK
| | - Vicent Pelechano
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - John Lunec
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle, NE1 7RU, UK
| | - Borivoj Vojtesek
- RECAMO, Masaryk Memorial Cancer Institute, Zluty Kopec 7, 65653, Brno, Czech Republic
| | - Mar Carmena
- The Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3JR, UK
| | - William C Earnshaw
- The Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3JR, UK
| | - Anna R McCarthy
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Nicholas J Westwood
- School of Chemistry and Biomedical Sciences Research Complex, University of St. Andrews and EaStCHEM, St. Andrews, Fife, Scotland, KY16 9ST, UK
| | - Marie Arsenian-Henriksson
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - David P Lane
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden.,SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Ravi Bhatia
- Division of Hematology and Oncology, Comprehensive Cancer Center, 1720 2nd Avenue South, NP2540, Birmingham, AL, 35294-3300, USA
| | - Emmet McCormack
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway.,Department of Medicine, Haematology Section, Haukeland University Hospital, Bergen, Norway
| | - Sonia Laín
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden. .,SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden.
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Ladds MJGW, Pastor-Fernández A, Popova G, van Leeuwen IMM, Eng KE, Drummond CJ, Johansson L, Svensson R, Westwood NJ, McCarthy AR, Tholander F, Popa M, Lane DP, McCormack E, McInerney GM, Bhatia R, Laín S. Autophagic flux blockage by accumulation of weakly basic tenovins leads to elimination of B-Raf mutant tumour cells that survive vemurafenib. PLoS One 2018; 13:e0195956. [PMID: 29684045 PMCID: PMC5912769 DOI: 10.1371/journal.pone.0195956] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 04/03/2018] [Indexed: 12/19/2022] Open
Abstract
Tenovin-6 is the most studied member of a family of small molecules with antitumour activity in vivo. Previously, it has been determined that part of the effects of tenovin-6 associate with its ability to inhibit SirT1 and activate p53. However, tenovin-6 has also been shown to modulate autophagic flux. Here we show that blockage of autophagic flux occurs in a variety of cell lines in response to certain tenovins, that autophagy blockage occurs regardless of the effect of tenovins on SirT1 or p53, and that this blockage is dependent on the aliphatic tertiary amine side chain of these molecules. Additionally, we evaluate the contribution of this tertiary amine to the elimination of proliferating melanoma cells in culture. We also demonstrate that the presence of the tertiary amine is sufficient to lead to death of tumour cells arrested in G1 phase following vemurafenib treatment. We conclude that blockage of autophagic flux by tenovins is necessary to eliminate melanoma cells that survive B-Raf inhibition and achieve total tumour cell kill and that autophagy blockage can be achieved at a lower concentration than by chloroquine. This observation is of great relevance as relapse and resistance are frequently observed in cancer patients treated with B-Raf inhibitors.
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Affiliation(s)
- Marcus J. G. W. Ladds
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- * E-mail: (MJGWL); (SL)
| | - Andrés Pastor-Fernández
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Gergana Popova
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | | | - Kai Er Eng
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Catherine J. Drummond
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Lars Johansson
- Chemical Biology Consortium Sweden, Department of Medical Biochemistry and Biophysics, Science for Life Laboratory, Division of Translational Medicine and Chemical Biology, Karolinska Institutet, Stockholm, Sweden
| | - Richard Svensson
- Department of Pharmacy, Uppsala University Drug Optimization and Pharmaceutical Profiling Platform (UDOPP), Uppsala University, Uppsala, Sweden
| | - Nicholas J. Westwood
- School of Chemistry and Biomedical Science Research Complex, University of St. Andrews and EaStCHEM, St Andrews, Fife, Scotland, United Kingdom
| | - Anna R. McCarthy
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Fredrik Tholander
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Mihaela Popa
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - David P. Lane
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Emmet McCormack
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Internal Medicine, Hematology Section, Haukeland University Hospital, Bergen, Norway
| | - Gerald M. McInerney
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Ravi Bhatia
- Department of Hematology and Oncology, University of Alabama, Birmingham, Alabama, United States of America
| | - Sonia Laín
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- * E-mail: (MJGWL); (SL)
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5
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Ladds MJGW, van Leeuwen IMM, Drummond CJ, Chu S, Healy AR, Popova G, Pastor Fernández A, Mollick T, Darekar S, Sedimbi SK, Nekulova M, Sachweh MCC, Campbell J, Higgins M, Tuck C, Popa M, Safont MM, Gelebart P, Fandalyuk Z, Thompson AM, Svensson R, Gustavsson AL, Johansson L, Färnegårdh K, Yngve U, Saleh A, Haraldsson M, D'Hollander ACA, Franco M, Zhao Y, Håkansson M, Walse B, Larsson K, Peat EM, Pelechano V, Lunec J, Vojtesek B, Carmena M, Earnshaw WC, McCarthy AR, Westwood NJ, Arsenian-Henriksson M, Lane DP, Bhatia R, McCormack E, Laín S. A DHODH inhibitor increases p53 synthesis and enhances tumor cell killing by p53 degradation blockage. Nat Commun 2018; 9:1107. [PMID: 29549331 PMCID: PMC5856786 DOI: 10.1038/s41467-018-03441-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 02/13/2018] [Indexed: 01/29/2023] Open
Abstract
The development of non-genotoxic therapies that activate wild-type p53 in tumors is of great interest since the discovery of p53 as a tumor suppressor. Here we report the identification of over 100 small-molecules activating p53 in cells. We elucidate the mechanism of action of a chiral tetrahydroindazole (HZ00), and through target deconvolution, we deduce that its active enantiomer (R)-HZ00, inhibits dihydroorotate dehydrogenase (DHODH). The chiral specificity of HZ05, a more potent analog, is revealed by the crystal structure of the (R)-HZ05/DHODH complex. Twelve other DHODH inhibitor chemotypes are detailed among the p53 activators, which identifies DHODH as a frequent target for structurally diverse compounds. We observe that HZ compounds accumulate cancer cells in S-phase, increase p53 synthesis, and synergize with an inhibitor of p53 degradation to reduce tumor growth in vivo. We, therefore, propose a strategy to promote cancer cell killing by p53 instead of its reversible cell cycle arresting effect.
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Affiliation(s)
- Marcus J G W Ladds
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Ingeborg M M van Leeuwen
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Catherine J Drummond
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Su Chu
- Division of Hematology and Oncology, Comprehensive Cancer Center, 1720 2nd Avenue South, NP2540, Birmingham, AL, 35294-3300, USA
| | - Alan R Healy
- School of Chemistry and Biomedical Sciences Research Complex, University of St. Andrews and EaStCHEM, St. Andrews, Fife, Scotland, KY16 9ST, UK
| | - Gergana Popova
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Andrés Pastor Fernández
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Tanzina Mollick
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Suhas Darekar
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Saikiran K Sedimbi
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Marta Nekulova
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
- RECAMO, Masaryk Memorial Cancer Institute, Zluty Kopec 7, 65653, Brno, Czech Republic
| | - Marijke C C Sachweh
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Johanna Campbell
- Centre for Oncology and Molecular Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, Tayside, DD1 9SY, UK
| | - Maureen Higgins
- Centre for Oncology and Molecular Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, Tayside, DD1 9SY, UK
| | - Chloe Tuck
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Mihaela Popa
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
| | - Mireia Mayoral Safont
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
| | - Pascal Gelebart
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
| | - Zinayida Fandalyuk
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
| | - Alastair M Thompson
- Department of Breast Surgical Oncology, MD Anderson Cancer Center, Holcombe Boulevard, Houston, 77030, USA
| | - Richard Svensson
- Department of Pharmacy, Uppsala University Drug Optimization and Pharmaceutical Profiling Platform (UDOPP), Department of Pharmacy, Uppsala University, SE-752 37, Uppsala, Sweden
| | - Anna-Lena Gustavsson
- Chemical Biology Consortium Sweden, Science for Life Laboratory, Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 21, Stockholm, Sweden
| | - Lars Johansson
- Chemical Biology Consortium Sweden, Science for Life Laboratory, Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 21, Stockholm, Sweden
| | - Katarina Färnegårdh
- Drug Discovery and Development Platform, Science for Life Laboratory, Tomtebodavägen 23, SE-171 21, Solna, Sweden
| | - Ulrika Yngve
- Department of Medicinal Chemistry, Science for Life Laboratories, Uppsala University, SE-751 23, Uppsala, Sweden
| | - Aljona Saleh
- Department of Medicinal Chemistry, Science for Life Laboratories, Uppsala University, SE-751 23, Uppsala, Sweden
| | - Martin Haraldsson
- Drug Discovery and Development Platform, Science for Life Laboratory, Tomtebodavägen 23, SE-171 21, Solna, Sweden
| | - Agathe C A D'Hollander
- School of Chemistry and Biomedical Sciences Research Complex, University of St. Andrews and EaStCHEM, St. Andrews, Fife, Scotland, KY16 9ST, UK
| | - Marcela Franco
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Yan Zhao
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle, NE1 7RU, UK
| | - Maria Håkansson
- SARomics Biostructures, Medicon Village, SE-223 81, Lund, Sweden
| | - Björn Walse
- SARomics Biostructures, Medicon Village, SE-223 81, Lund, Sweden
| | - Karin Larsson
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Emma M Peat
- The Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3JR, UK
| | - Vicent Pelechano
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - John Lunec
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle, NE1 7RU, UK
| | - Borivoj Vojtesek
- RECAMO, Masaryk Memorial Cancer Institute, Zluty Kopec 7, 65653, Brno, Czech Republic
| | - Mar Carmena
- The Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3JR, UK
| | - William C Earnshaw
- The Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh, EH9 3JR, UK
| | - Anna R McCarthy
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Nicholas J Westwood
- School of Chemistry and Biomedical Sciences Research Complex, University of St. Andrews and EaStCHEM, St. Andrews, Fife, Scotland, KY16 9ST, UK
| | - Marie Arsenian-Henriksson
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - David P Lane
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden
| | - Ravi Bhatia
- Division of Hematology and Oncology, Comprehensive Cancer Center, 1720 2nd Avenue South, NP2540, Birmingham, AL, 35294-3300, USA
| | - Emmet McCormack
- Centre for Cancer Biomarkers, CCBIO, Department of Clinical Science, Hematology Section, University of Bergen, 5021, Bergen, Norway
- Department of Medicine, Haematology Section, Haukeland University Hospital, Bergen, Norway
| | - Sonia Laín
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, SE-171 77, Stockholm, Sweden.
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Tomtebodavägen 23, SE-171 21, Stockholm, Sweden.
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6
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Sachweh MCC, Stafford WC, Drummond CJ, McCarthy AR, Higgins M, Campbell J, Brodin B, Arnér ESJ, Laín S. Redox effects and cytotoxic profiles of MJ25 and auranofin towards malignant melanoma cells. Oncotarget 2016; 6:16488-506. [PMID: 26029997 PMCID: PMC4599284 DOI: 10.18632/oncotarget.4108] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [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: 12/15/2014] [Accepted: 04/23/2015] [Indexed: 12/20/2022] Open
Abstract
Malignant melanoma is the most dangerous type of skin cancer. Although recent progress in treatment has been achieved, lack of response, drug resistance and relapse remain major problems. The tumor suppressor p53 is rarely mutated in melanoma, yet it is inactive in the majority of cases due to dysregulation of upstream pathways. Thus, we screened for compounds that can activate p53 in melanoma cells. Here we describe effects of the small molecule MJ25 (2-{[2-(1,3-benzothiazol-2-ylsulfonyl)ethyl]thio}-1,3-benzoxazole), which increased the level of p53-dependent transactivation both as a single agent and in combination with nutlin-3. Furthermore, MJ25 showed potent cytotoxicity towards melanoma cell lines, whilst having weaker effects against human normal cells. MJ25 was also identified in an independent screen as an inhibitor of thioredoxin reductase 1 (TrxR1), an important selenoenzyme in the control of oxidative stress and redox regulation. The well-characterized TrxR inhibitor auranofin, which is FDA-approved and currently in clinical trials against leukemia and a number of solid cancers, displayed effects comparable with MJ25 on cells and led to eradication of cultured melanoma cells at low micromolar concentrations. In conclusion, auranofin, MJ25 or other inhibitors of TrxR1 should be evaluated as candidate compounds or leads for targeted therapy of malignant melanoma.
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Affiliation(s)
- Marijke C C Sachweh
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - William C Stafford
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Catherine J Drummond
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Anna R McCarthy
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Maureen Higgins
- Centre for Oncology and Molecular Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, Tayside, United Kingdom
| | - Johanna Campbell
- Centre for Oncology and Molecular Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, Tayside, United Kingdom
| | - Bertha Brodin
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Elias S J Arnér
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Sonia Laín
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
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7
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van Leeuwen IMM, Higgins M, Campbell J, McCarthy AR, Sachweh MCC, Navarro AM, Laín S. Modulation of p53 C-terminal acetylation by mdm2, p14ARF, and cytoplasmic SirT2. Mol Cancer Ther 2013; 12:471-80. [PMID: 23416275 DOI: 10.1158/1535-7163.mct-12-0904] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Acetylation of C-terminal lysine residues in the p53 tumor suppressor is associated with increased stability and transcription factor activity. The function, protein level, and acetylation of p53 are downregulated by mdm2, which in its turn is inhibited by the p14(ARF) tumor suppressor. Here, we show that p14(ARF) increases the level of p53 acetylated at lysine 382 in a nuclear chromatin-rich fraction. Unexpectedly, this accumulation of p53AcK382 is dramatically enhanced in the presence of ectopic mdm2. In light of these observations, we propose that p14(ARF) increases the binding of p53-mdm2 complexes to chromatin, thereby limiting the access of protein deacetylases to p53. Supporting this notion, we show that p53AcK382 can be deacetylated in the cytoplasm and that sirtuin SirT2 catalyzes this reaction. These results help understand why inhibition of both SirT1 and SirT2 is needed to achieve effective activation of p53 by small-molecule sirtuin inhibitors.
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Affiliation(s)
- Ingeborg M M van Leeuwen
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Nobels väg 16, Stockholm 171 77, Sweden
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8
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McCarthy AR, Sachweh MCC, Higgins M, Campbell J, Drummond CJ, van Leeuwen IMM, Pirrie L, Ladds MJGW, Westwood NJ, Laín S. Tenovin-D3, a novel small-molecule inhibitor of sirtuin SirT2, increases p21 (CDKN1A) expression in a p53-independent manner. Mol Cancer Ther 2013; 12:352-60. [PMID: 23322738 DOI: 10.1158/1535-7163.mct-12-0900] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
While small-molecule inhibitors of class I/II histone deacetylases (HDAC) have been approved for cancer treatment, inhibitors of the sirtuins (a family of class III HDACs) still require further validation and optimization to enter clinical trials. Recent studies show that tenovin-6, a small-molecule inhibitor of sirtuins SirT1 and SirT2, reduces tumor growth in vivo and eliminates leukemic stem cells in a murine model for chronic myelogenous leukemia. Here, we describe a tenovin analogue, tenovin-D3, that preferentially inhibits sirtuin SirT2 and induces predicted phenotypes for SirT2 inhibition. Unlike tenovin-6 and in agreement with its weak effect on SirT1 (a p53 deacetylase), tenovin-D3 fails to increase p53 levels or transcription factor activity. However, tenovin-D3 promotes expression of the cell-cycle regulator and p53 target p21(WAF1/CIP1) (CDKN1A) in a p53-independent manner. Structure-activity relationship studies strongly support that the ability of tenovin-D3 to inhibit SirT2 contributes to this p53-independent induction of p21. The ability of tenovin-D3 to increase p21 mRNA and protein levels is shared with class I/II HDAC inhibitors currently used in the clinic and therefore suggests that SirT2 inhibition and class I/II HDAC inhibitors have similar effects on cell-cycle progression.
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Affiliation(s)
- Anna R McCarthy
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
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9
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McCarthy AR, Pirrie L, Hollick JJ, Ronseaux S, Campbell J, Higgins M, Staples OD, Tran F, Slawin AMZ, Lain S, Westwood NJ. Synthesis and biological characterisation of sirtuin inhibitors based on the tenovins. Bioorg Med Chem 2012; 20:1779-93. [PMID: 22304848 DOI: 10.1016/j.bmc.2012.01.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 12/09/2011] [Accepted: 01/02/2012] [Indexed: 11/26/2022]
Abstract
The tenovins are small molecule inhibitors of the NAD(+)-dependent family of protein deacetylases known as the sirtuins. There remains considerable interest in inhibitors of this enzyme family due to possible applications in both cancer and neurodegenerative disease therapy. Through the synthesis of novel tenovin analogues, further insights into the structural requirements for activity against the sirtuins in vitro are provided. In addition, the activity of one of the analogues in cells led to an improved understanding of the function of SirT1 in cells.
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Affiliation(s)
- Anna R McCarthy
- School of Chemistry and Biomedical Sciences Research Complex, University of St. Andrews, North Haugh, St. Andrews, Fife, UK
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10
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van Leeuwen IMM, Higgins M, Campbell J, Brown CJ, McCarthy AR, Pirrie L, Westwood NJ, Laín S. Mechanism-specific signatures for small-molecule p53 activators. Cell Cycle 2011; 10:1590-8. [PMID: 21490429 DOI: 10.4161/cc.10.10.15519] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Recent advances in the field of pharmacological activation of the p53 tumor suppressor are beginning to be translated into the clinic. In addition, small molecules that activate p53 through established mechanisms of action are proving invaluable tools for basic research. Here we analyze and compare the effects of nutlin-3, tenovin-6 and low doses of actinomycin-D on p53 and its main negative regulator, mdm2. We reveal striking differences in the speed at which these compounds increase p53 protein levels, with nutlin-3 having a substantial impact within minutes. We also show that nutlin-3 is very effective at increasing the synthesis of mdm2 mRNA, mdm2 being not only a modulator of p53 but also a transcriptional target. In addition, we show that nutlin-3 stabilizes mdm2's conformation and protects mdm2 from degradation. These strong effects of nutlin-3 on mdm2 correlate with a remarkable rate of recovery of p53 levels upon removal of the compound. We discuss the potential application of our results as molecular signatures to assess the on-target effects of small-molecule mdm2 inhibitors. To conclude, we discuss the implications of our observations for using small-molecule p53 activators to reduce the growth of tumors retaining wild-type p53 or to protect normal tissues against the undesired side effects of conventional chemotherapy.
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11
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Medda F, Russell RJM, Higgins M, McCarthy AR, Campbell J, Slawin AMZ, Lane DP, Lain S, Westwood NJ. Novel cambinol analogs as sirtuin inhibitors: synthesis, biological evaluation, and rationalization of activity. J Med Chem 2009; 52:2673-82. [PMID: 19419202 DOI: 10.1021/jm8014298] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The tenovins and cambinol are two classes of sirtuin inhibitor that exhibit antitumor activity in preclinical models. This report describes modifications to the core structure of cambinol, in particular by incorporation of substituents at the N1-position, which lead to increased potency and modified selectivity. These improvements have been rationalized using molecular modeling techniques. The expected functional selectivity in cells was also observed for both a SIRT1 and a SIRT2 selective analog.
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Affiliation(s)
- Federico Medda
- School of Chemistry and Centre for Biomolecular Sciences, University of St Andrews, St Andrews, Fife, KY16 9ST, Scotland, UK
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12
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Staples OD, Hollick JJ, Campbell J, Higgins M, McCarthy AR, Appleyard V, Murray KE, Baker L, Thompson A, Ronseaux S, Slawin AMZ, Lane DP, Westwood NJ, Lain S. Characterization, chemical optimization and anti-tumour activity of a tubulin poison identified by a p53-based phenotypic screen. Cell Cycle 2008; 7:3417-27. [PMID: 18971638 DOI: 10.4161/cc.7.21.6982] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
A robust p53 cell-based assay that exploits p53's function as a transcription factor was used to screen a small molecule library and identify bioactive small molecules with potential antitumor activity. Unexpectedly, the majority of the highest ranking hit compounds from this screen arrest cells in mitosis and most of them impair polymerization of tubulin in cells and in vitro. One of these novel compounds, JJ78:1, was subjected to structure-activity relationship studies and optimized leading to the identification of JJ78:12. This molecule is significantly more potent than the original hit JJ78:1, as it is active in cells at two-digit nanomolar concentrations and shows clear antitumor activity in a mouse xenograft model as a single agent. The effects of nocodazole, a well established tubulin poison, and JJ78:12 on p53 levels are remarkably similar, supporting that tubulin depolymerization is the main mechanism by which JJ78:12 treatment leads to p53 activation in cells. In summary, these results identify JJ78:12 as a potential cancer therapeutic, demonstrate that screening for activators of p53 in a cell-based assay is an effective way to identify inhibitors of mitosis progression and highlights p53's sensitivity to alterations during mitosis.
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Affiliation(s)
- Oliver D Staples
- Department of Surgery and Molecular Oncology, University of Dundee, Ninewells Hospital and Medical School, Dundee, Scotland, UK
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13
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Abstract
There is concern that insecticides are able to mimic the action of 17beta-estradiol by interaction with the human estrogen receptor. Pyrethroids are commonly used insecticides and several have been assessed for potential endocrine disrupting activity by various methods. It has been noted that some metabolites of pyrethroids, in particular, permethrin and cypermethrin, have chemical structures that are more likely to interact with the cellular estrogen receptor than the parent pyrethroid. For this study permethrin and cypermethrin metabolites 3-(4-hydroxy-3-phenoxy)benzyl alcohol, 3-(4-hydroxy-3-phenoxy)benzoic acid, and N-3-(phenoxybenzoyl)glycine were synthesised, and together with the commercially available 3-phenoxybenzyl alcohol, 3-phenoxybenzaldehyde, and 3-phenoxybenzoic acid, were studied in a recombinant yeast assay expressing human estrogen receptors (YES). Three metabolites, 3-phenoxybenzyl alcohol, 3-(4-hydroxy-3-phenoxy)benzyl alcohol, and 3-phenoxybenzaldehyde, showed estrogenic activity of approximately 10(5) less than that of 17beta-estradiol. No activity was observed in the yeast assay for 3-phenoxybenzoic acid, 3-(4-hydroxy-3-phenoxy)benzoic acid, and N-3-(phenoxybenzoyl)glycine. The results from this study show that pyrethroid metabolites are capable of interacting with the human estrogen receptor, and so might present a risk to human health and environmental well being. The impact would be expected to be small, but still add to the overall environmental xenoestrogen load.
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Affiliation(s)
- Anna R McCarthy
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
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Buddle BM, McCarthy AR, Ryan TJ, Pollock JM, Vordermeier HM, Hewinson RG, Andersen P, de Lisle GW. Use of mycobacterial peptides and recombinant proteins for the diagnosis of bovine tuberculosis in skin test-positive cattle. Vet Rec 2003; 153:615-20. [PMID: 14653340 DOI: 10.1136/vr.153.20.615] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
More accurate tests are required to test cattle which have reacted positively in the tuberculin skin test. For this purpose, a range of mycobacterial antigens, MPB59, MPB64, MPB70, MPB83, ESAT-6 and CFP10, were used either as recombinant proteins or as synthetic peptides in the whole blood interferon-gamma (IFN-gamma) test. Groups of uninfected cattle with typical 'non-specificity' problems were targeted, in particular animals with skin tuberculosis, animals vaccinated against Johne's disease and animals that were positive in the standard purified protein derivative (PPD)-based IFN-gamma test. The two study groups consisted of 74 Mycobacterium bovis-culture positive animals and 72 uninfected animals, all of which tested positive in the caudal fold tuberculin skin test eight to 28 days before the blood test. The use of combinations of ESAT-6 and CFP10 antigens, either as recombinant proteins or peptides, detected similar percentages of M bovis-infected animals as the PPD-based IFN-gamma test, but produced significantly fewer false positive reactions. The PPD-based IFN-gamma test was very effective in differentiating animals vaccinated against Johne's disease that were skin-test positive from those with bovine tuberculosis, and the use of PPD or specific mycobacterial antigens minimised the number of false positive reactions in animals with skin tuberculosis.
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Affiliation(s)
- B M Buddle
- AgResearch, Wallaceville Animal Research Centre, PO Box 40063, Upper Hutt, New Zealand
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15
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Wedlock DN, Keen DL, McCarthy AR, Andersen P, Buddle BM. Effect of different adjuvants on the immune responses of cattle vaccinated with Mycobacterium tuberculosis culture filtrate proteins. Vet Immunol Immunopathol 2002; 86:79-88. [PMID: 11943331 DOI: 10.1016/s0165-2427(02)00017-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The development of improved vaccines for bovine tuberculosis is urgently required as a cost effective solution for control and eventual eradication of tuberculosis in domestic animals. Studies in small animal models of tuberculosis have shown that vaccination with culture filtrate proteins (CFP), prepared from Mycobacterium tuberculosis or M. bovis, can induce cellular immune responses and confer a level of protection against aerogenic challenge with virulent mycobacteria. As a first step in the development of a mycobacterial CFP vaccine for protection of cattle against bovine tuberculosis, the immune responses of cattle vaccinated with short-term culture filtrate proteins (ST-CFP) from M. tuberculosis and formulated with different adjuvants were compared with those vaccinated with bacille Calmette-Guerin (BCG). The adjuvants included dimethyldioctyldecyl ammonium bromide (DDA), diethylaminoethyl (DEAE)-dextran, and ST-CFP adsorbed onto polystyrene beads. Vaccination with ST-CFP/DEAE-dextran induced high levels of interleukin-2 (IL-2) but low levels of interferon-gamma (IFN-gamma) from whole-blood cultures stimulated with M. tuberculosis ST-CFP in comparison with the strong IFN-gamma and IL-2 responses induced after vaccination with BCG. ST-CFP/DEAE-dextran also induced a strong antigen-specific immunoglobulin antibody response with both immunoglobulin G1 (IgG1) and IgG2 isotypes. Vaccination with ST-CFP/beads induced a weak IgG1-biased antibody response but no IFN-gamma or IL-2 response. DDA did not induce significant immune responses in animals vaccinated with ST-CFP. In comparison to the moderate delayed-type hypersensitivity (DTH) responses induced by vaccination with subcutaneous BCG, none of the ST-CFP vaccines induced a significant DTH response to either M. tuberculosis ST-CFP or bovine purified protein derivative (PPD). While the ST-CFP vaccines used in this study have not induced strong antigen-specific cellular immune responses in cattle comparable to those induced by BCG, they are immunogenic in cattle and it may be possible to overcome this problem by using adjuvants that more effectively promote IFN-gamma responses in this species.
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Affiliation(s)
- D N Wedlock
- AgResearch Ltd., Wallaceville Animal Research Centre, P.O. Box 40063, Upper Hutt, New Zealand.
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16
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Doolin EE, Midwinter RG, McCarthy AR, Buddle BM. Purification of secretory immunoglobulin A from milk of the brushtail possum (Trichosurus vulpecula). N Z Vet J 2001; 49:181-6. [PMID: 16032190 DOI: 10.1080/00480169.2001.36230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AIM To identify and purify secretory immunoglobulin A (sIgA), a key effecter molecule in mucosal immune responses, from milk of the brushtail possum (Trichosurus vulpecula). METHODS Milk samples were collected from female possums with pouch young, and clarified by centrifugation and precipitation methods. The clarified fraction was purified by gel filtration and affinity chromatography to yield sIgA. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDSPAGE) and immunoblotting techniques were used to assess the purity of the final product, and to identify the heavy (H) chain, light (L) chain and secretory component (SC) of possum sIgA. RESULTS Immunoblotting, using antibodies raised against cloned possum sIgA SC and H-chain, and a synthetic peptide fragment of the H-chain, confirmed the identity of the purified protein. The N-terminal amino acid sequence of purified possum sIgA showed strong homology to reported sequences of H-chain variable regions of marsupial immunoglobulins. CONCLUSIONS Milk was shown to be a convenient source of mucosal secretion containing sIgA, and a process involving 2 precipitation and 2 chromatography steps produced purified sIgA. This IgA preparation will prove useful for the generation of sIgA-specific immunological reagents for measurement of immune responses in the development of mucosal-based vaccines for biological control of possums.
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Affiliation(s)
- E E Doolin
- AgResearch, Wallaceville Animal Research Centre, PO Box 40-063, Upper Hutt, New Zealand
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17
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Wedlock DN, Goh LP, McCarthy AR, Midwinter RG, Parlane NA, Buddle BM. Physiological effects and adjuvanticity of recombinant brushtail possum TNF-alpha. Immunol Cell Biol 1999; 77:28-33. [PMID: 10101683 DOI: 10.1046/j.1440-1711.1999.00793.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The present paper describes the physiological properties of recombinant possum TNF-alpha and an adjuvant effect on antibody responses to the model protein antigen, keyhole limpet haemocyanin (KLH). For these studies recombinant possum TNF-alpha was produced in the yeast Pichia pastoris. The recombinant cytokine was secreted into the culture medium and purified by gel filtration. Possum TNF-alpha produced in this expression system was N-glycosylated and bioactive in two different assays. In a murine fibroblast L929 cytotoxicity assay, the possum TNF-alpha had lower specific activity compared to human TNF-alpha, while in a possum-specific assay, possum TNF-alpha enhanced the proliferation of PHA-stimulated possum thymocytes and was more active than human TNF-alpha. The physiological effect of the recombinant possum TNF-alpha was investigated in groups of possums administered doses of 6, 30 or 150 micrograms of cytokine. For each dose, TNF-alpha caused profound effects on the numbers of circulating leucocytes characterized by a three-to-four-fold increase in neutrophil numbers at 6-24 h after injection and an initial sharp decrease in lymphocyte numbers. The efficacy of TNF-alpha as an immunological adjuvant was determined in possums administered KLH (125 micrograms) in an aqueous or Al(OH)3-based formulation with or without added recombinant TNF-alpha (150 micrograms). Serum antibody responses to KLH were monitored by ELISA. The TNF-alpha stimulated two-fold and four-fold increases in antibody levels in aqueous and Al(OH)3-based vaccine formulations, respectively. The strongest antibody responses were observed in the group of possums that received KLH formulated in Al(OH)3 with addition of TNF-alpha.
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Affiliation(s)
- D N Wedlock
- AgResearch, Wallaceville Animal Research Centre, Upper Hutt, New Zealand
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Buddle BM, Keen D, Thomson A, Jowett G, McCarthy AR, Heslop J, De Lisle GW, Stanford JL, Aldwell FE. Protection of cattle from bovine tuberculosis by vaccination with BCG by the respiratory or subcutaneous route, but not by vaccination with killed Mycobacterium vaccae. Res Vet Sci 1995; 59:10-6. [PMID: 8525078 DOI: 10.1016/0034-5288(95)90023-3] [Citation(s) in RCA: 123] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Groups of cattle were vaccinated either with BCG Pasteur by the intratracheal or subcutaneous route or with killed Mycobacterium vaccae by the intradermal route and challenged intratracheally 54 days later with Mycobacterium bovis. Vaccination with BCG resulted in fewer animals developing tuberculous lesions and in a reduction in the number of lesions in the diseased animals compared with the unvaccinated group and the group vaccinated with M vaccae. None of the nine animals vaccinated intratracheally with BCG developed any tuberculous lung lesions after challenge with M bovis, but two of the nine animals from each of the groups dosed subcutaneously with low and medium doses of BCG developed lung lesions. There was little difference in protection against the M bovis challenge between the animals receiving the low dose (10(3) colony forming units, cfu) or medium dose (10(5) cfu) of subcutaneous BCG, but the medium dose of BCG produced stronger cell-mediated immune responses to bovine purified protein derivative (PPD) after vaccination. Vaccination intradermally with 10(9) heat-killed M vaccae did not protect cattle against an experimental challenge with M bovis and induced only weak cell-mediated immune responses to bovine PPD.
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Affiliation(s)
- B M Buddle
- AgResearch, Wallaceville Animal Research Centre, Upper Hutt, New Zealand
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Buddle BM, Nolan A, McCarthy AR, Heslop J, Aldwell FE, Jackson R, Pfeiffer DU. Evaluation of three serological assays for the diagnosis ofMycobacterium bovisinfection in brushtail possums. N Z Vet J 1995; 43:91-5. [PMID: 16031820 DOI: 10.1080/00480169.1995.35860] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Three serological tests for the diagnosis of Mycobacterium bovis infection were evaluated on 29 possums (Trichosurus vulpecula) with tuberculosis and on 100 possums from a tuberculosis-free area. An indirect ELISA using M. bovis culture filtrate as the antigen had a sensitivity of 45% and a specificity of 96%, while an indirect ELISA using a M. bovis specific antigen (MPB70) had a sensitivity of 21% and a specificity of 98%. A blocking ELISA which utilised a monoclonal antibody against MPB70 had a sensitivity of 28% and a specificity of 99%. Combination of the test results of the three ELISAs resulted in an increase in sensitivity to 51% and a decrease in specificity to 93%. A previous study has shown that possums experimentally infected with M. bovis produced cellular responses to M. bovis antigens relatively early in the infection, but these responses decreased in the terminal stages of the disease. In contrast, analysis of serological responses in the current study from sequentially collected sera of possums experimentally and naturally infected with M. bovis showed that antibody was first detected late in the disease.
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Affiliation(s)
- B M Buddle
- AgResearch, Wallaceville Animal Research Centre, PO Box 40-063, Upper Hutt, New Zealand
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Davies DH, McCarthy AR, Keen DL. The effect of parainfluenza virus type 3 and Pasteurella haemolytica on oxygen-dependent and oxygen-independent bactericidal mechanisms of ovine pulmonary phagocytic cells. Vet Microbiol 1986; 12:147-59. [PMID: 3018994 DOI: 10.1016/0378-1135(86)90076-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Groups of caesarean-derived, colostrum-deprived lambs were inoculated by the intratracheal route with Pasteurella haemolytica, either alone or 4 or 6 days after the inoculation of parainfluenza virus type 3 (PI3). Other groups were inoculated with PI3 followed by veal infusion broth, or with uninfected cell culture fluid followed by veal infusion broth (controls). All lambs were killed 24 h after the second inoculation. Pulmonary phagocytic cells were recovered by lavage and separated into alveolar macrophage (AM) and neutrophil fractions by density gradient centrifugation. Bacterial proliferation was detected in the lungs of all five lambs inoculated with P. haemolytica 6 days after PI3 but in only one of five inoculated with P. haemolytica 4 days after PI3 and one of five inoculated with P. haemolytica alone. The number of phagocytic cells recovered from the lungs was highest in animals inoculated with P. haemolytica 6 days after PI3 and, overall, a greater number of both AM and neutrophils was recovered from the lungs of animals where bacterial proliferation occurred (greater than 10(5.0) P. haemolytica 100 g-1 lung) than from those that controlled the bacterial infection. Oxygen-dependent bactericidal activity of AM and neutrophils was measured by chemiluminescence. Infection with PI3 and P. haemolytica increased the chemiluminescence responses. The highest responses were recorded from lambs inoculated with P. haemolytica 6 days after PI3, the group where pulmonary clearance was poorest. Overall, responses were higher in lambs in which bacterial proliferation occurred than in those that controlled the infection. On the other hand, oxygen-independent bactericidal activity, measured by the direct effects of neutrophil lysates on Escherichia coli, was lowest in lambs inoculated with P. haemolytica 6 days after PI3 and was lower in lambs where bacterial proliferation occurred.
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Davies DH, Long DL, McCarthy AR, Herceg M. The effect of parainfluenza virus type 3 on the phagocytic cell response of the ovine lung to Pasteurella haemolytica. Vet Microbiol 1986; 11:125-44. [PMID: 3010545 DOI: 10.1016/0378-1135(86)90013-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Groups of Caesarean-derived, colostrum-deprived lambs were inoculated by the intratracheal route with Pasteurella haemolytica 4 to 6 days after the inoculation of parainfluenza virus type 3 (PI3). Some were killed immediately (0 h) and others 24 h later. Control groups were inoculated with PI3 alone, P. haemolytica alone or media alone. Pulmonary phagocytic cells, P. haemolytica and PI3 were recovered by pulmonary lavage. The phagocytes were separated into alveolar macrophage (AM) and neutrophil fractions by density gradient centrifugation and examined biochemically and microbiologically. Twenty-four hours after the inoculation of P. haemolytica bacterial proliferation to greater than 0 h levels had occurred in four of six animals inoculated with P. haemolytica alone, two of eight inoculated with P. haemolytica 4 days after PI3 and all of eight inoculated with P. haemolytica 6 days after PI3. Mean bacterial numbers in animals inoculated with P. haemolytica 6 days after PI3 and killed at 24 h (10(9.1 +/- 1.9)) were significantly higher than they were in the other two groups killed at this time (PI3 4 days, P. haemolytica 24 h, mean = 10(5.3 +/- 1.7); P. haemolytica alone 24 h, mean = 10(4.5 +/- 2.9)). Pneumonic lesions were also more severe in the first group. This defect in pulmonary clearance and increase in the severity of pneumonia in animals inoculated with P. haemolytica 6 days after PI3 coincided with a 1000-fold decrease in virus titres in the lung between Day 6 and Day 7 after virus inoculation and the first detectable evidence of the host's immune response. The virus infection resulted in a significant increase in the number of AM that could be recovered from the lung and an increase in the number of AM with cytoplasmic vacuolation. However, there was no difference in the total number of AM or the number of vacuolated AM between animals that controlled the P. haemolytica infection and those in which proliferation of P. haemolytica occurred. The inoculation of P. haemolytica resulted in a 100-fold increase in the number of neutrophils in the lavage fluid, but there were no differences between virus-infected and uninfected animals, nor was there a difference between animals that controlled the P. haemolytica infection and those that did not.(ABSTRACT TRUNCATED AT 400 WORDS)
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Davies DH, McCarthy AR, Penwarden RA. The effect of vaccination of lambs with live parainfluenza virus type 3 on pneumonia produced by parainfluenza virus type 3 and Pasteurella haemolytica. N Z Vet J 1980; 28:201-2. [PMID: 6258113 DOI: 10.1080/00480169.1980.34754] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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