Autor: |
Makielski KM, Sarver AL, Henson MS, Stuebner KM, Borgatti A, Suksanpaisan L, Preusser C, Tabaran AF, Cornax I, O'Sullivan MG, Chehadeh A, Groschen D, Bergsrud K, Pracht S, Winter A, Mills LJ, Schwabenlander MD, Wolfe M, Farrar MA, Cutter GR, Koopmeiners JS, Russell SJ, Modiano JF, Naik S |
Jazyk: |
angličtina |
Zdroj: |
BioRxiv : the preprint server for biology [bioRxiv] 2023 Sep 08. Date of Electronic Publication: 2023 Sep 08. |
DOI: |
10.1101/2023.04.16.533664 |
Abstrakt: |
Osteosarcoma is a devastating bone cancer that disproportionally afflicts children, adolescents, and young adults. Standard therapy includes surgical tumor resection combined with multiagent chemotherapy, but many patients still suffer from metastatic disease progression. Neoadjuvant systemic oncolytic virus (OV) therapy has the potential to improve clinical outcomes by targeting primary and metastatic tumor sites and inducing durable antitumor immune responses. Here we described the first evaluation of neoadjuvant systemic therapy with a clinical-stage recombinant oncolytic Vesicular stomatitis virus (VSV), VSV-IFNβ-NIS, in naturally occurring cancer, specifically appendicular osteosarcoma in companion dogs. Canine osteosarcoma has a similar natural disease history as its human counterpart. VSV-IFNβ-NIS was administered prior to standard of care surgical resection, permitting microscopic and genomic analysis of tumors. Treatment was well-tolerated and a 'tail' of long-term survivors (~35%) was apparent in the VSV-treated group, a greater proportion than observed in two contemporary control cohorts. An increase in tumor inflammation was observed in VSV-treated tumors and RNAseq analysis showed that all the long-term responders had increased expression of a T-cell anchored immune gene cluster. We conclude that neoadjuvant VSV-IFNβ-NIS is safe and may increase long-term survivorship in dogs with naturally occurring osteosarcoma, particularly those that exhibit pre-existing antitumor immunity. |
Databáze: |
MEDLINE |
Externí odkaz: |
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