1
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Chaganti T, Tsai CY, Juang YP, Abdelalim M, Cernak T. Medicinal Chemistry Gone Wild. J Med Chem 2024. [PMID: 38662285 DOI: 10.1021/acs.jmedchem.3c02334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Earth is currently experiencing a mass extinction event. The flora and fauna of our planet are experiencing mass die-offs from a multitude of factors, with wildlife disease emerging as one parameter where medicinal chemists are equipped to intervene. While contemporary medicinal chemistry focuses on human health, many traditional pharmaceutical companies have historic roots in human health, animal health, and plant health. This trifecta of health sciences perfectly maps to the current field of One Health, which recognizes that optimal health outcomes can only be achieved through the health of humans, plants, animals, and their shared environments. This Perspective imagines a world where state-of-the-art medicinal chemistry tactics are used to prevent the extinction of endangered species and points to preliminary work in the emerging area of conservation medicine.
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Affiliation(s)
- Tesko Chaganti
- Canton High School, Canton, Michigan 48187, United States
| | - Chun-Yi Tsai
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Yu-Pu Juang
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Mohamed Abdelalim
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Tim Cernak
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
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2
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Silva RCMC, Panis C, Pires BRB. Lessons from transmissible cancers for immunotherapy and transplant. Immunol Med 2021; 45:146-161. [PMID: 34962854 DOI: 10.1080/25785826.2021.2018783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
The emergence of horizontal transmission of cancer between vertebrates is an issue that interests scientists and medical society. Transmission requires: (i) a mechanism by which cancer cells can transfer to another organism and (ii) a repressed immune response on the part of the recipient. Transmissible tumors are unique models to comprehend the responses and mechanisms mediated by the major histocompatibility complex (MHC), which can be transposed for transplant biology. Here, we discuss the mechanisms involved in immune-mediated tissue rejection, making a parallel with transmissible cancers. We also discuss cellular and molecular mechanisms involved in cancer immunotherapy and anti-rejection therapies.
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Affiliation(s)
- Rafael Cardoso Maciel Costa Silva
- Laboratory of Immunoreceptors and Signaling, Instituto de Biofísica Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio De Janeiro, Brazil
| | - Carolina Panis
- Laboratory of Tumor Biology, State University of West Paraná, UNIOESTE, Francisco Beltrão, Brazil
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3
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Attard MRG, Lewis A, Wroe S, Hughes C, Rogers TL. Whisker growth in Tasmanian devils (
Sarcophilus harrisii
) and applications for stable isotope studies. Ecosphere 2021. [DOI: 10.1002/ecs2.3846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Marie R. G. Attard
- Department of Biological Sciences Royal Holloway University of London Egham TW20 0EX UK
- Evolution and Ecology Research Centre School of Biological, Earth and Environmental Sciences University of New South Wales Sydney New South Wales Australia
| | - Anna Lewis
- Evolution and Ecology Research Centre School of Biological, Earth and Environmental Sciences University of New South Wales Sydney New South Wales Australia
- The Carnivore Conservancy Ulverstone Tasmania Australia
| | - Stephen Wroe
- Function, Evolution and Anatomy Research Laboratory School of Environmental and Rural Science University of New England Armidale New South Wales Australia
| | - Channing Hughes
- The Carnivore Conservancy Ulverstone Tasmania Australia
- School of Life and Environmental Sciences The University of Sydney Sydney New South Wales Australia
| | - Tracey L. Rogers
- Evolution and Ecology Research Centre School of Biological, Earth and Environmental Sciences University of New South Wales Sydney New South Wales Australia
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4
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Ikonomopoulou MP, Lopez-Mancheño Y, Novelle MG, Martinez-Uña M, Gangoda L, Pal M, Costa-Machado LF, Fernandez-Marcos PJ, Ramm GA, Fernandez-Rojo MA. LXR stimulates a metabolic switch and reveals cholesterol homeostasis as a statin target in Tasmanian devil facial tumor disease. Cell Rep 2021; 34:108851. [PMID: 33730574 DOI: 10.1016/j.celrep.2021.108851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 11/02/2020] [Accepted: 02/17/2021] [Indexed: 12/12/2022] Open
Abstract
Devil facial tumor disease (DFTD) and its lack of available therapies are propelling the Tasmanian devil population toward extinction. This study demonstrates that cholesterol homeostasis and carbohydrate energy metabolism sustain the proliferation of DFTD cells in a cell-type-dependent manner. In addition, we show that the liver-X nuclear receptor-β (LXRβ), a major cholesterol cellular sensor, and its natural ligand 24S-hydroxycholesterol promote the proliferation of DFTD cells via a metabolic switch toward aerobic glycolysis. As a proof of concept of the role of cholesterol homeostasis on DFTD proliferation, we show that atorvastatin, an FDA-approved statin-drug subtype used against human cardiovascular diseases that inhibits cholesterol synthesis, shuts down DFTD energy metabolism and prevents tumor growth in an in vivo DFTD-xenograft model. In conclusion, we show that intervention against cholesterol homeostasis and carbohydrate-dependent energy metabolism by atorvastatin constitutes a feasible biochemical treatment against DFTD, which may assist in the conservation of the Tasmanian devil.
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Affiliation(s)
- Maria P Ikonomopoulou
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia; The University of Queensland, Brisbane, QLD, Australia; Translational Venomics Laboratory, Madrid Institute for Advanced Studies (IMDEA) Food, Madrid 28049, Spain.
| | - Yaiza Lopez-Mancheño
- Hepatic Regenerative Medicine Laboratory, Madrid Institute for Advanced Studies (IMDEA) Food, Madrid 28049, Spain
| | - Marta G Novelle
- Hepatic Regenerative Medicine Laboratory, Madrid Institute for Advanced Studies (IMDEA) Food, Madrid 28049, Spain
| | - Maite Martinez-Uña
- Hepatic Regenerative Medicine Laboratory, Madrid Institute for Advanced Studies (IMDEA) Food, Madrid 28049, Spain
| | - Lahiru Gangoda
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Melbourne, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, Melbourne, VIC 3052, Australia
| | - Martin Pal
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Melbourne, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, Melbourne, VIC 3052, Australia
| | - Luis Filipe Costa-Machado
- Metabolic Syndrome Laboratory, Madrid Institute for Advanced Studies (IMDEA) Food, Madrid 28049, Spain
| | | | - Grant A Ramm
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia; The University of Queensland, Brisbane, QLD, Australia
| | - Manuel Alejandro Fernandez-Rojo
- QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia; The University of Queensland, Brisbane, QLD, Australia; Hepatic Regenerative Medicine Laboratory, Madrid Institute for Advanced Studies (IMDEA) Food, Madrid 28049, Spain.
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5
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Ong CEB, Lyons AB, Woods GM, Flies AS. Inducible IFN-γ Expression for MHC-I Upregulation in Devil Facial Tumor Cells. Front Immunol 2019; 9:3117. [PMID: 30692995 PMCID: PMC6340284 DOI: 10.3389/fimmu.2018.03117] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 12/17/2018] [Indexed: 12/31/2022] Open
Abstract
The Tasmanian devil facial tumor (DFT) disease has led to an 80% reduction in the wild Tasmanian devil (Sarcophilus harrisii) population since 1996. The limited genetic diversity of wild devils and the lack of MHC-I expression on DFT cells have been implicated in the lack of immunity against the original DFT clonal cell line (DFT1). Recently, a second transmissible tumor of independent origin (DFT2) was discovered. Surprisingly, DFT2 cells do express MHC-I, but DFT2 cells appear to be on a trajectory for reduced MHC-I expression in vivo. Thus, much of the ongoing vaccine-development efforts and conservation plans have focused on MHC-I. A major limitation in conservation efforts is the lack of species-specific tools to understand Tasmanian devil gene function and immunology. To help fill this gap, we developed an all-in-one Tet-Off vector system to regulate expression of IFN-γ in DFT cells (DFT1.Tet/IFN-γ). IFN-γ can have negative effects on cell proliferation and viability; thus, doxycycline was used to suppress IFN-γ production whilst DFT1.Tet/IFN-γ cells were expanded in cell culture. Induction of IFN-γ following removal of doxycycline led to upregulation of MHC-I but also the inhibitory checkpoint molecule PD-L1. Additionally, DFT1.Tet/IFN-γ cells were capable of stimulating MHC-I upregulation on bystander wild type DFT cells in co-culture assays in vitro. This system represents a major step forward in DFT disease immunotherapy and vaccine development efforts, and ability to understand gene function in devils. Importantly, the techniques are readily transferable for testing gene function in DFT2 cells and other non-traditional species.
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Affiliation(s)
- Chrissie E B Ong
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Alan Bruce Lyons
- School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Gregory M Woods
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Andrew S Flies
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
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6
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Mi S, Xia J, Xu Y, Du Z, Sun W. An integrated microchannel biosensor platform to analyse low density lactate metabolism in HepG2 cells in vitro. RSC Adv 2019; 9:9006-9013. [PMID: 35517697 PMCID: PMC9062021 DOI: 10.1039/c9ra00694j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 03/08/2019] [Indexed: 11/21/2022] Open
Abstract
In this study, we developed an electrochemical microchannel biosensor platform to analyse lactate metabolism in cells. This biosensor platform was fabricated by photolithography, thin-film deposition and microfluidic technology. A kind of functional biomaterial was prepared by mixing lactate oxidase, single-walled carbon nanotubes and chitosan, and platinum as working and blank electrodes of the biosensor was modified by a thin Prussian blue layer. The lactate biosensor was obtained by dropping functional biomaterials on the electrode. The results demonstrated that the sensitivity of the electrochemical biosensor was up to 567 nA mM−1 mm−2 and the limit of detection was 4.5 μM (vs. Ag/AgCl as the counter/reference electrode). The biosensor used to quantitatively detect metabolic lactate concentrations in HepG2 cells cultured with cancer drugs showed high sensitivity, selectivity and stability, and has potential applications in organ-on-a-chip and tissue engineering technologies, which typically involve low concentrations of metabolites. In this study, we developed an electrochemical microchannel biosensor platform to analyse lactate metabolism in cells.![]()
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Affiliation(s)
- Shengli Mi
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen 51805
- P. R. China
- Department of Mechanical Engineering and Mechanics
| | - Jingjing Xia
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen 51805
- P. R. China
- Department of Mechanical Engineering and Mechanics
| | - Yuanyuan Xu
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen 51805
- P. R. China
- Department of Mechanical Engineering and Mechanics
| | - Zhichang Du
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen 51805
- P. R. China
- Department of Mechanical Engineering and Mechanics
| | - Wei Sun
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen 51805
- P. R. China
- Department of Mechanical Engineering and Mechanics
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7
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Ikonomopoulou MP, Fernandez-Rojo MA. The antiproliferative and apoptotic profile of gomesin against DFTD. Cell Death Dis 2018; 9:833. [PMID: 30082778 PMCID: PMC6078965 DOI: 10.1038/s41419-018-0885-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/12/2018] [Accepted: 07/16/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Maria P Ikonomopoulou
- Madrid Institute for Advanced Studies (IMDEA) in Food, CEI UAM+CSIC, Madrid, E28049, Spain. .,School of Medicine, The University of Queensland, Herston, QLD, 4006, Australia.
| | - Manuel A Fernandez-Rojo
- Madrid Institute for Advanced Studies (IMDEA) in Food, CEI UAM+CSIC, Madrid, E28049, Spain. .,Tranlastional Research Institute/Diamantina Institute, The University of Queensland, Herston, QLD, 4006, Australia.
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8
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Abstract
Treatment options for animals with cancer are rapidly expanding, including in exotic animal medicine. Limited information is available about treatment effects in exotic pet species beyond individual case reports. Most cancer treatment protocols in exotic animals are extrapolated from those described in humans, dogs, and cats. This review provides an update on cancer treatment in exotic animal species. The Exotic Species Cancer Research Alliance accumulates clinical cases in a central location with standardized clinical information, with resources to help clinicians find and enter their cases for the collective good of exotic clinicians and their patients.
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9
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Stammnitz MR, Coorens THH, Gori KC, Hayes D, Fu B, Wang J, Martin-Herranz DE, Alexandrov LB, Baez-Ortega A, Barthorpe S, Beck A, Giordano F, Knowles GW, Kwon YM, Hall G, Price S, Pye RJ, Tubio JMC, Siddle HVT, Sohal SS, Woods GM, McDermott U, Yang F, Garnett MJ, Ning Z, Murchison EP. The Origins and Vulnerabilities of Two Transmissible Cancers in Tasmanian Devils. Cancer Cell 2018; 33:607-619.e15. [PMID: 29634948 PMCID: PMC5896245 DOI: 10.1016/j.ccell.2018.03.013] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/23/2018] [Accepted: 03/11/2018] [Indexed: 02/07/2023]
Abstract
Transmissible cancers are clonal lineages that spread through populations via contagious cancer cells. Although rare in nature, two facial tumor clones affect Tasmanian devils. Here we perform comparative genetic and functional characterization of these lineages. The two cancers have similar patterns of mutation and show no evidence of exposure to exogenous mutagens or viruses. Genes encoding PDGF receptors have copy number gains and are present on extrachromosomal double minutes. Drug screening indicates causative roles for receptor tyrosine kinases and sensitivity to inhibitors of DNA repair. Y chromosome loss from a male clone infecting a female host suggests immunoediting. These results imply that Tasmanian devils may have inherent susceptibility to transmissible cancers and present a suite of therapeutic compounds for use in conservation.
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Affiliation(s)
- Maximilian R Stammnitz
- Transmissible Cancer Group, Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK
| | - Tim H H Coorens
- Transmissible Cancer Group, Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK
| | - Kevin C Gori
- Transmissible Cancer Group, Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK
| | - Dane Hayes
- Mount Pleasant Laboratories, Tasmanian Department of Primary Industries, Parks, Water and the Environment, Prospect, TAS 7250, Australia; School of Health Sciences, Faculty of Health, University of Tasmania, Launceston, TAS 7248, Australia
| | - Beiyuan Fu
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Jinhong Wang
- Transmissible Cancer Group, Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK
| | - Daniel E Martin-Herranz
- Transmissible Cancer Group, Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK
| | - Ludmil B Alexandrov
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Adrian Baez-Ortega
- Transmissible Cancer Group, Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK
| | - Syd Barthorpe
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Alexandra Beck
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Francesca Giordano
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Graeme W Knowles
- Mount Pleasant Laboratories, Tasmanian Department of Primary Industries, Parks, Water and the Environment, Prospect, TAS 7250, Australia
| | - Young Mi Kwon
- Transmissible Cancer Group, Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK
| | - George Hall
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Stacey Price
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Ruth J Pye
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS 7000, Australia
| | - Jose M C Tubio
- Transmissible Cancer Group, Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK
| | - Hannah V T Siddle
- Centre for Biological Sciences, University of Southampton, Southampton SO17 1BJ, UK
| | - Sukhwinder Singh Sohal
- School of Health Sciences, Faculty of Health, University of Tasmania, Launceston, TAS 7248, Australia
| | - Gregory M Woods
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS 7000, Australia
| | - Ultan McDermott
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Fengtang Yang
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Mathew J Garnett
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Zemin Ning
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton CB10 1SA, UK
| | - Elizabeth P Murchison
- Transmissible Cancer Group, Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK.
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10
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Fernandez-Rojo MA, Deplazes E, Pineda SS, Brust A, Marth T, Wilhelm P, Martel N, Ramm GA, Mancera RL, Alewood PF, Woods GM, Belov K, Miles JJ, King GF, Ikonomopoulou MP. Gomesin peptides prevent proliferation and lead to the cell death of devil facial tumour disease cells. Cell Death Discov 2018. [PMID: 29531816 PMCID: PMC5841354 DOI: 10.1038/s41420-018-0030-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The Tasmanian devil faces extinction due to devil facial tumour disease (DFTD), a highly transmittable clonal form of cancer without available treatment. In this study, we report the cell-autonomous antiproliferative and cytotoxic activities exhibited by the spider peptide gomesin (AgGom) and gomesin-like homologue (HiGom) in DFTD cells. Mechanistically, both peptides caused a significant reduction at G0/G1 phase, in correlation with an augmented expression of the cell cycle inhibitory proteins p53, p27, p21, necrosis, exacerbated generation of reactive oxygen species and diminished mitochondrial membrane potential, all hallmarks of cellular stress. The screening of a novel panel of AgGom-analogues revealed that, unlike changes in the hydrophobicity and electrostatic surface, the cytotoxic potential of the gomesin analogues in DFTD cells lies on specific arginine substitutions in the eight and nine positions and alanine replacement in three, five and 12 positions. In conclusion, the evidence supports gomesin as a potential antiproliferative compound against DFTD disease.
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Affiliation(s)
- Manuel A Fernandez-Rojo
- 1QIMR Berghofer Medical Research Institute, Brisbane, QLD 4006 Australia.,2Faculty of Medicine, The University of Queensland, Brisbane, QLD 4006 Australia.,3Madrid Institute for Advanced Studies (IMDEA) in Food, CEI UAM+CSIC, Madrid, 28049 Spain
| | - Evelyne Deplazes
- 4School of Biomedical Sciences, Curtin Health Innovation Research Institute and Curtin Institute for Computation, Curtin University, Perth, WA 6845 Australia
| | - Sandy S Pineda
- 5Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD 4072 Australia
| | - Andreas Brust
- 5Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD 4072 Australia
| | - Tano Marth
- 5Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD 4072 Australia
| | - Patrick Wilhelm
- 5Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD 4072 Australia
| | - Nick Martel
- 5Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD 4072 Australia
| | - Grant A Ramm
- 1QIMR Berghofer Medical Research Institute, Brisbane, QLD 4006 Australia.,2Faculty of Medicine, The University of Queensland, Brisbane, QLD 4006 Australia
| | - Ricardo L Mancera
- 4School of Biomedical Sciences, Curtin Health Innovation Research Institute and Curtin Institute for Computation, Curtin University, Perth, WA 6845 Australia
| | - Paul F Alewood
- 5Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD 4072 Australia
| | - Gregory M Woods
- 6Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania 7000 Australia
| | - Katherine Belov
- 7School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006 Australia
| | - John J Miles
- 1QIMR Berghofer Medical Research Institute, Brisbane, QLD 4006 Australia.,2Faculty of Medicine, The University of Queensland, Brisbane, QLD 4006 Australia.,8Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, 4870 Australia
| | - Glenn F King
- 5Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD 4072 Australia
| | - Maria P Ikonomopoulou
- 1QIMR Berghofer Medical Research Institute, Brisbane, QLD 4006 Australia.,2Faculty of Medicine, The University of Queensland, Brisbane, QLD 4006 Australia.,3Madrid Institute for Advanced Studies (IMDEA) in Food, CEI UAM+CSIC, Madrid, 28049 Spain
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11
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Öğünç Y, Demirel M, Yakar A, İncesu Z. Vincristine and ɛ-viniferine-loaded PLGA-b-PEG nanoparticles: pharmaceutical characteristics, cellular uptake and cytotoxicity. J Microencapsul 2017; 34:38-46. [PMID: 28084127 DOI: 10.1080/02652048.2017.1282549] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The objective of this study was to prepare the ɛ-viniferine and vincristine-loaded PLGA-b-PEG nanoparticle and to investigate advantages of these formulations on the cytotoxicity of HepG2 cells. Prepared nanoparticle has shown a homogeneous distribution with 113 ± 0.43 nm particle size and 0.323 ± 0.01 polydispersity index. Zeta potential was determined as -35.03 ± 1.0 mV. The drug-loading percentages were 6.01 ± 0.23 and 2.01 ± 0.07 for ɛ-viniferine and vincristine, respectively. The cellular uptake efficiency of coumarin-6-loaded nanoparticles was increased up to 87.8% after 4 h. Nanoparticles loaded with high concentrations of both drugs showed a cytotoxic effect on HepG2 cells, having the percentage of cell viability of between 43.23% and 47.37%. Unfortunately, the percentage of apoptotic cells after treated with drugs-loaded nanaoparticles (10.93%) was similar to free forms of drugs (12.1%) that might be due to low ɛ-viniferine release in biological pH at 24 h.
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Affiliation(s)
- Yüksel Öğünç
- a Department of Biochemistry, Faculty of Pharmacy , Anadolu University , Eskisehir , Turkey
| | - Müzeyyen Demirel
- b Department of Pharmaceutical Technology, Faculty of Pharmacy , Anadolu University , Eskisehir , Turkey
| | - Arzu Yakar
- c Department of Chemical Engineering , Afyon Kocatepe University , Afyon , Turkey
| | - Zerrin İncesu
- a Department of Biochemistry, Faculty of Pharmacy , Anadolu University , Eskisehir , Turkey
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12
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Harrison TM, Kitchell BE. Principles and Applications of Medical Oncology in Exotic Animals. Vet Clin North Am Exot Anim Pract 2017; 20:209-234. [PMID: 27890289 DOI: 10.1016/j.cvex.2016.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Diagnoses of neoplasia in exotic animals have historically been made at death or just before euthanasia. Routine physical examinations are enabling early diagnosis while accessibility and affordability of advanced diagnostics are improving. With increasing expectations for care, treatment options are more frequently explored. Numerous oncologic medications have been adopted from human and small animal medicine and successfully used in exotic animals. Although there is a need for extended research, this article evaluates which medications have been used thus far for treatment protocols in zoologic and exotic animal species.
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Affiliation(s)
- Tara Myers Harrison
- Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, NC 27607, USA.
| | - Barbara E Kitchell
- Department of Oncology, VCA Veterinary Care Referral Center, 9901 Montgomery Boulevard, Albuquerque, NM 87111, USA
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13
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The Immunomodulatory Small Molecule Imiquimod Induces Apoptosis in Devil Facial Tumour Cell Lines. PLoS One 2016; 11:e0168068. [PMID: 27936237 PMCID: PMC5148113 DOI: 10.1371/journal.pone.0168068] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 11/28/2016] [Indexed: 12/13/2022] Open
Abstract
The survival of the Tasmanian devil (Sarcophilus harrisii) is threatened by devil facial tumour disease (DFTD). This transmissible cancer is usually fatal, and no successful treatments have been developed. In human studies, the small immunomodulatory molecule imiquimod is a successful immunotherapy, activating anti-tumour immunity via stimulation of toll-like receptor-7 (TLR7) signaling pathways. In addition, imiquimod is a potent inducer of apoptosis in human tumour cell lines via TLR7 independent mechanisms. Here we investigate the potential of imiquimod as a DFTD therapy through analysis of treated DFTD cell lines and Tasmanian devil fibroblasts. WST-8 proliferation assays and annexin V apoptosis assays were performed to monitor apoptosis, and changes to the expression of pro- and anti-apoptotic genes were analysed using qRT-PCR. Our results show that DFTD cell lines, but not Tasmanian devil fibroblasts, are sensitive to imiquimod-induced apoptosis in a time and concentration dependent manner. Induction of apoptosis was accompanied by down-regulation of the anti-apoptotic BCL2 and BCLXL genes, and up-regulation of the pro-apoptotic BIM gene. Continuous imiquimod treatment was required for these effects to occur. These results demonstrate that imiquimod can deregulate DFTD cell growth and survival in direct and targeted manner. In vivo, this may increase DFTD vulnerability to imiquimod-induced TLR7-mediated immune responses. Our findings have improved the current knowledge of imiquimod action in tumour cells for application to both DFTD and human cancer therapy.
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14
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Peck S, Corkrey R, Hamede R, Jones M, Canfield P. Hematologic and serum biochemical changes associated with Devil Facial Tumor Disease in Tasmanian Devils. Vet Clin Pathol 2016; 45:417-29. [PMID: 27589840 DOI: 10.1111/vcp.12391] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Devil Facial Tumor Disease (DFTD) is an infectious tumor causing significant population declines in wild Tasmanian Devils. While clinical assessment and pathology have been well reported for DFTD, there is a lack of information on hematologic and biochemical alterations associated with DFTD. OBJECTIVES The purpose of the study was to determine hematologic and serum biochemical variation in healthy, wounded, and DFTD-affected Tasmanian Devils. METHODS Blood samples were collected from wild Tasmanian Devils at 5 sites in Tasmania. Hematology and clinical biochemistry variables were compared between clinically healthy, wounded, and DFTD-affected devils. Differences were also analyzed among stages of DFTD, including individuals pre- and postclinical signs developing, and between ulcerated and nonulcerated DFTD tumors. RESULTS Statistically significantly increased counts in WBC, neutrophils, and platelets, and concentration of fibrinogen, as well as decreased counts in lymphocytes, erythrocytes, and HGB concentration were observed in DFTD-affected devils compared to healthy devils. Activities of ALP, ALT, and GLDH, concentrations of sodium, potassium and albumin, and sodium-to-potassium ratio and albumin-to-globulin ratio were significantly lower, and AST activity was significantly higher in animals with DFTD when compared to clinically healthy animals. No significant differences were found among stages of DFTD or ulcerated and nonulcerated tumors. CONCLUSIONS The differences in hematology and clinical chemistry variables in devils with DFTD compared to healthy devils are nonspecific and reflective of acute phase response and inflammation, and anemia of chronic disease. Similar changes are observed with wounds but to a lesser extent.
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Affiliation(s)
- Sarah Peck
- Faculty of Veterinary Science, University of Sydney, Sydney, NSW, Australia. .,Wildlife Management Branch, Department of Primary Industries, Parks, Water and Environment, Hobart, Tas., Australia.
| | - Ross Corkrey
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, Tas., Australia
| | - Rodrigo Hamede
- School of Biological Sciences, University of Tasmania, Hobart, Tas., Australia
| | - Menna Jones
- School of Biological Sciences, University of Tasmania, Hobart, Tas., Australia
| | - Paul Canfield
- Faculty of Veterinary Science, University of Sydney, Sydney, NSW, Australia
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15
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Phalen DN, Frimberger AE, Peck S, Pyecroft S, Harmsen C, Lola S, Moore AS. Doxorubicin and carboplatin trials in Tasmanian devils (Sarcophilus harrisii) with Tasmanian devil facial tumor disease. Vet J 2015; 206:312-6. [DOI: 10.1016/j.tvjl.2015.10.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 09/24/2015] [Accepted: 10/04/2015] [Indexed: 11/24/2022]
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16
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Ma Q, Chen W, Chen W. Anti-tumor angiogenesis effect of a new compound: B-9-3 through interference with VEGFR2 signaling. Tumour Biol 2015; 37:6107-16. [DOI: 10.1007/s13277-015-4473-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 11/18/2015] [Indexed: 12/15/2022] Open
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17
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Siddle HV, Kaufman J. Immunology of naturally transmissible tumours. Immunology 2015; 144:11-20. [PMID: 25187312 PMCID: PMC4264906 DOI: 10.1111/imm.12377] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 08/26/2014] [Indexed: 12/14/2022] Open
Abstract
Naturally transmissible tumours can emerge when a tumour cell gains the ability to pass as an infectious allograft between individuals. The ability of these tumours to colonize a new host and to cross histocompatibility barriers contradicts our understanding of the vertebrate immune response to allografts. Two naturally occurring contagious cancers are currently active in the animal kingdom, canine transmissible venereal tumour (CTVT), which spreads among dogs, and devil facial tumour disease (DFTD), among Tasmanian devils. CTVT are generally not fatal as a tumour-specific host immune response controls or clears the tumours after transmission and a period of growth. In contrast, the growth of DFTD tumours is not controlled by the Tasmanian devil's immune system and the disease causes close to 100% mortality, severely impacting the devil population. To avoid the immune response of the host both DFTD and CTVT use a variety of immune escape strategies that have similarities to many single organism tumours, including MHC loss and the expression of immunosuppressive cytokines. However, both tumours appear to have a complex interaction with the immune system of their respective host, which has evolved over the relatively long life of these tumours. The Tasmanian devil is struggling to survive with the burden of this disease and it is only with an understanding of how DFTD passes between individuals that a vaccine might be developed. Further, an understanding of how these tumours achieve natural transmissibility should provide insights into general mechanisms of immune escape that emerge during tumour evolution.
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Affiliation(s)
- Hannah V Siddle
- Centre for Biological Sciences, University of Southampton, Southampton, UK
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18
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Hantrakul S, Klangkaew N, Kunakornsawat S, Tansatit T, Poapolathep A, Kumagai S, Poapolathep S. Clinical pharmacokinetics and effects of vincristine sulfate in dogs with transmissible venereal tumor (TVT). J Vet Med Sci 2014; 76:1549-53. [PMID: 25649934 PMCID: PMC4300367 DOI: 10.1292/jvms.14-0180] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This study was conducted to evaluate the pharmacokinetic characteristics of vincristine and their correlation with its clinical effects in dogs with transmissible venereal tumor (TVT). Dogs with TVT were intravenously administered vincristine sulfate at a dose of 0.7 mg/m(2) of body surface area. Blood samples were collected starting from 5 min to 48 hr after drug administration. The plasma concentration of vincristine was determined using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The pharmacokinetic parameters of vincristine were characterized using a two-compartmental pharmacokinetic model. The volume of distribution, distribution half-life, elimination half-life and plasma clearance were 0.660 ± 0.210 l/kg, 21.5 ± 6.90 min, 47.6 ± 14.2 min and 0.010 ± 0.001 l/min/kg, respectively. Tumor regression was determined at weekly interval by a physical examination and histopathological analysis. In our study, three to eight administrations of vincristine at a dose of 0.7 mg/m(2) were able to induce a complete tumor regression without any evidence of gross lesion of disease. Therefore, this investigation provides the pharmacokinetic characteristics of vincristine in dogs with TVT, which may be used as an integration tool to gain a better understanding of the disposition properties of the drug and the correlation of these properties with the drug's clinical effects. In addition, we validated the LC-MS/MS method and found that it is suitable for the pharmacokinetic study of vincristine in dog plasma.
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Affiliation(s)
- Supannika Hantrakul
- Department of Pharmacology, Faculty of Veterinary Medicine, Kasetsart University Bangkok 10900, Thailand
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19
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Özdemir F, Akalın G, Şen M, Önder NI, Işcan A, Kutlu HM, Incesu Z. Towards novel anti-tumor strategies for hepatic cancer: ɛ-viniferin in combination with vincristine displays pharmacodynamic synergy at lower doses in HepG2 cells. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2013; 18:324-34. [PMID: 24341688 DOI: 10.1089/omi.2013.0045] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hepatocellular carcinoma is the fifth most common cancer and the third leading cause of cancer-related deaths worldwide. The efficacy of novel combination treatments are increasingly evaluated with use of integrative biology research and development (R&D) strategies and methodological triangulation. We investigated the anti-tumor effect of ɛ-viniferin alone, and the putative synergy of ɛ-viniferin with vincristine on the growth of HepG2 cells in vitro. Growth inhibition and apoptosis induction were determined by MTT assay and annexin V/propidium iodide (PI), respectively. Morphological changes and DNA fragmentation were investigated under electron microscopy and by agarose gel electrophoresis, respectively. The results collectively showed that treating cells with ɛ-viniferin and vincristine significantly inhibited cell viability at lower doses as compared to each agent applied alone. IC(50) values for ɛ-viniferin and vincristine were determined as 98.3 and 52.5 μM at 24 h, respectively. IC(50) value of ɛ-viniferin in combination with vincristine was 15.8+11.25 μM (mean/SD) at 24 h. The viability of cells treated with 17.9 μM vincristine alone for 24 h was 79.62%; it reduced to 26.53% when 25 μM ɛ-viniferin was added in combination with vincristine (p<0.05). We found that combination of drugs promoted the sensitivity of cells against to vincristine treatment. The effect of combined use was in support of a synergistic pharmacodynamic effect. Moreover, low doses of the combination regimen induced phosphatidyl re-localization, morphological changes, and DNA fragmentation, and therefore caused apoptotic death. This study thus suggests that low concentrations of ɛ-viniferin and vincristine can enhance the anti-tumor effects efficiently by inducing HepG2 cell apoptosis. Further studies in other model systems are warranted with a view to potential future applications in the clinic of such combination regimens and their putative mechanism of action in the observed synergy reported here.
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Affiliation(s)
- Filiz Özdemir
- 1 Faculty of Pharmacy, Department of Biochemistry, Anadolu University , Tepebası, Eskisehir, Turkey
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