ArticleInternational urology and nephrology2011
Additive antitumoral effect of interleukin-12 gene therapy and chemotherapy in the treatment of urothelial bladder cancer in vitro and in vivo.
Article in International urology and nephrology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 3 citations in OpenAlex.
- Oncolytic adenovirus co-expressing IL-12 and shVEGF potentiates immune checkpoint blockade for treatment of renal cell carcinoma: in vitro, organ-on-a-chip, and in vivo evaluation.Molecular medicine (Cambridge, Mass.) · 2026Article
- Future directions in bladder cancer immunotherapy: towards adaptive immunity.Immunotherapy · 2016Review
- Targeted therapies in bladder cancer: an overview of in vivo research.Nature reviews. Urology · 2015Review
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Authors and funding
5 authors at 3 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundWe evaluated antitumoral effect of combined chemotherapy and interleukin-12 (IL-12) gene therapy in in vitro and in vivo experimental urothelial bladder cancer (UBC) model. MATERIALS AND
methodsEJ UBC cells were transfected with recombinant IL-12 genes using a liposomal transfection agent. Pirarubicin (THP) was added to the experimental samples at a final concentration of 20 mg/l. Four groups were assigned in vitro: untreated cells, transfected cells, untransfected cells plus THP and transfected cells plus THP. Death rates (DR) and cellular micromorphologic changes were evaluated. Bladder tumor model was established by subcutaneous injection of EJ cells to the nude mice. Four groups were assigned in vivo: control group; THP group; IL-12 gene group and IL-12 gene plus THP group. After injection of combined THP and IL-12 gene therapy, tumor size and IL-12 levels were evaluated.
resultsIn vitro study: DR in the THP + IL-12 gene therapy group (58.2 ± 15.8%) was significantly higher than transfected group (12.2 ± 5.6%; P = 0.01) and untransfected cells plus THP group (33.4 ± 7.8; P = 0.046). A higher amount of apoptotic changes and necrosis on transmission electron microscope analysis were observed in transfected cells plus THP group. In vivo study: A significant tumor attenuation was found in IL-12 gene in combination with THP group when compared with any other groups that were treated without Il-12 or THP (P < 0.05). IL-12 levels in serum were significant high in IL-12 gene groups (P < 0.01).
conclusionThe combination of THP chemotherapy and IL-12 gene therapy showed an additive antitumoral effect on bladder cancer cells in vitro and in vivo. Further investigation should be focused on high-level transgene protocols in vivo.
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