ArticleCancer gene therapy2025
A conditionally replicative adenovirus vector containing the synNotch receptor gene for the treatment of muscle-invasive bladder cancer.
Article in Cancer gene therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Advancements in delivery systems for in vivo chimeric antigen receptor T-cell therapy in urological diseases.Current urology · 2026Review
- Oncolytic adenoviruses in bladder and kidney cancers: emerging strategies and next frontiers.Frontiers in microbiology · 2025Review
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Authors and funding
8 authors.
Funding
Abstract
Muscle-invasive bladder cancer (MIBC), a highly heterogeneous disease, shows genomic instability and a high mutation rate, making it difficult to treat. Recent studies revealed that cancer stem cells (CSCs) play a critical role in MIBC frequent recurrence and high morbidity. Previous research has shown that Cyclooxygenases-2 (COX-2) is particularly highly expressed in bladder cancer cells. In recent years, the development of oncolytic adenoviruses and their use in clinical trials have gained increased attention. In this study, we composed a conditionally replicative adenovirus vector (CRAd-synNotch) that carries the COX-2 promotor driving adenoviral E1 gene, the synNotch receptor therapeutic gene, and the Ad5/35 fiber gene. Activation of the COX-2 promoter gene causes replication only within COX-2 expressing cancer cells, thereby leading to tumor oncolysis. Also, CD44 and HIF signals contribute to cancer stemness and maintaining CSCs in bladder cancer, and the transduced synNotch receptor inhibits both CD44 and HIF signals simultaneously. We performed an in vivo study using a mouse xenograft model of T24 human MIBC cells and confirmed the significant antitumor activity of CRAd-synNotch. Our findings in this study warrant the further development of CRAd-synNotch for treating patients with MIBC.
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