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Extracellular Vesicles in Osteosarcoma: Antagonists or Therapeutic Agents?
Article

Proteomic Assessment of Extracellular Vesicles from Canine Tissue Explants as a Pipeline to Identify Molecular Targets in Osteosarcoma: PSMD14/Rpn11 as a Proof of Principle

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Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
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Department of Animal Biosciences, Ontario Agricultural College, University of Guelph, Guelph, ON N1G 2W1, Canada
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Department of Biochemistry, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea
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Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
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Vuja De Sciences, Inc., Natick, MA 01760, USA
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SBH Sciences, Natick, MA 01760, USA
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Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
*
Author to whom correspondence should be addressed.
Academic Editors: Andrea Del Fattore, Michela Rossi and Giacomina Brunetti
Int. J. Mol. Sci. 2022, 23(6), 3256; https://doi.org/10.3390/ijms23063256
Received: 24 December 2021 / Revised: 7 March 2022 / Accepted: 14 March 2022 / Published: 17 March 2022
(This article belongs to the Special Issue Molecular and Translational Research on Bone Tumors)
Osteosarcoma (OS) is a highly malignant bone tumour that has seen little improvement in treatment modalities in the past 30 years. Understanding what molecules contribute to OS biology could aid in the discovery of novel therapies. Extracellular vesicles (EVs) serve as a mode of cell-to-cell communication and have the potential to uncover novel protein signatures. In our research, we developed a novel pipeline to isolate, characterize, and profile EVs from normal bone and osteosarcoma tissue explants from canine OS patients. Proteomic analysis of vesicle preparations revealed a protein signature related to protein metabolism. One molecule of interest, PSMD14/Rpn11, was explored further given its prognostic potential in human and canine OS, and its targetability with the drug capzimin. In vitro experiments demonstrated that capzimin induces apoptosis and reduces clonogenic survival, proliferation, and migration in two metastatic canine OS cell lines. Capzimin also reduces the viability of metastatic human OS cells cultured under 3D conditions that mimic the growth of OS cells at secondary sites. This unique pipeline can improve our understanding of OS biology and identify new prognostic markers and molecular targets for both canine and human OS patients. View Full-Text
Keywords: osteosarcoma; extracellular vesicles; tissue explants; biomarker discovery; molecular targets osteosarcoma; extracellular vesicles; tissue explants; biomarker discovery; molecular targets
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MDPI and ACS Style

Luu, A.K.; Cadieux, M.; Wong, M.; Macdonald, R.; Jones, R.; Choi, D.; Oblak, M.; Brisson, B.; Sauer, S.; Chafitz, J.; Warshawsky, D.; Wood, G.A.; Viloria-Petit, A.M. Proteomic Assessment of Extracellular Vesicles from Canine Tissue Explants as a Pipeline to Identify Molecular Targets in Osteosarcoma: PSMD14/Rpn11 as a Proof of Principle. Int. J. Mol. Sci. 2022, 23, 3256. https://doi.org/10.3390/ijms23063256

AMA Style

Luu AK, Cadieux M, Wong M, Macdonald R, Jones R, Choi D, Oblak M, Brisson B, Sauer S, Chafitz J, Warshawsky D, Wood GA, Viloria-Petit AM. Proteomic Assessment of Extracellular Vesicles from Canine Tissue Explants as a Pipeline to Identify Molecular Targets in Osteosarcoma: PSMD14/Rpn11 as a Proof of Principle. International Journal of Molecular Sciences. 2022; 23(6):3256. https://doi.org/10.3390/ijms23063256

Chicago/Turabian Style

Luu, Anita K., Mia Cadieux, Mackenzie Wong, Rachel Macdonald, Robert Jones, Dongsic Choi, Michelle Oblak, Brigitte Brisson, Scott Sauer, James Chafitz, David Warshawsky, Geoffrey A. Wood, and Alicia M. Viloria-Petit. 2022. "Proteomic Assessment of Extracellular Vesicles from Canine Tissue Explants as a Pipeline to Identify Molecular Targets in Osteosarcoma: PSMD14/Rpn11 as a Proof of Principle" International Journal of Molecular Sciences 23, no. 6: 3256. https://doi.org/10.3390/ijms23063256

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