Encapsulated Stem Cells Loaded with Hyaluronidase-expressing Oncolytic Virus for Brain Tumor Therapy
Overview
Pharmacology
Affiliations
Despite the proven safety of oncolytic viruses (OV) in clinical trials for glioblastoma (GBM), their efficacy has been hindered by suboptimal spreading within the tumor. We show that hyaluronan or hyaluronic acid (HA), an important component of extracellular matrix (ECM), is highly expressed in a majority of tumor xenografts established from patient-derived GBM lines that present both invasive and nodular phenotypes. Intratumoral injection of a conditionally replicating adenovirus expressing soluble hyaluronidase (ICOVIR17) into nodular GBM, mediated HA degradation and enhanced viral spread, resulting in a significant antitumor effect and mice survival. In an effort to translate OV-based therapeutics into clinical settings, we encapsulated human adipose-derived mesenchymal stem cells (MSC) loaded with ICOVIR17 in biocompatible synthetic extracellular matrix (sECM) and tested their efficacy in a clinically relevant mouse model of GBM resection. Compared with direct injection of ICOVIR17, sECM-MSC loaded with ICOVIR17 resulted in a significant decrease in tumor regrowth and increased mice survival. This is the first report of its kind revealing the expression of HA in GBM and the role of OV-mediated HA targeting in clinically relevant mouse model of GBM resection and thus has clinical implications.
Microenvironmental Drivers of Glioma Progression.
Jang H, Park J Int J Mol Sci. 2025; 26(5).
PMID: 40076738 PMC: 11900340. DOI: 10.3390/ijms26052108.
Virus nanotechnology for intratumoural immunotherapy.
Omole A, Zhao Z, Chang-Liao S, de Oliveira J, Boone C, Sutorus L Nat Rev Bioeng. 2024; 2(11):916-929.
PMID: 39698315 PMC: 11655125. DOI: 10.1038/s44222-024-00231-z.
Mesenchymal stem cell origin contributes to the antitumor effect of oncolytic virus carriers.
Sukegawa M, Miyagawa Y, Kuroda S, Yamazaki Y, Yamamoto M, Adachi K Mol Ther Oncol. 2024; 32(4):200896.
PMID: 39554905 PMC: 11568361. DOI: 10.1016/j.omton.2024.200896.
Mongeon B, Hebert-Doutreloux J, Surendran A, Karimi E, Fiset B, Quail D NPJ Syst Biol Appl. 2024; 10(1):91.
PMID: 39155294 PMC: 11330976. DOI: 10.1038/s41540-024-00419-4.
Gil-Chinchilla J, Zapata A, Moraleda J, Garcia-Bernal D Biomolecules. 2024; 14(7).
PMID: 39062449 PMC: 11275142. DOI: 10.3390/biom14070734.