ArticleCurrent pharmaceutical biotechnology2026
The Suicide Gene System Cytosine Deaminase::Uracylphosphoribosyltransferase/5-fluorocytosine Displays a Strong Cytotoxic Effect on Human Melanoma Cells.
Article in Current pharmaceutical biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Cytokine-Enhanced Vaccine as Surgery Adjuvant Treatment for Spontaneous Canine Melanoma: Comparison of Two Intralesional Procedures for Local Disease Control.Veterinary and comparative oncology · 2026Article
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Authors and funding
3 authors.
Funding
Abstract
introductionBackground: Melanoma is considered the deadliest form of skin cancer. While monoclonal-antibodies and molecular targets marked milestones in melanoma therapy, more research is needed to overcome the advanced stages of this disease.
objectiveTo explore the possible use of the yeast cytosine deaminase::uracil phosphoribosyltransferase fusion enzyme/5-fluorocytosine (CD::UPRT/5FC) suicide gene (SG) system for human melanoma.
methodsIn eight metastatic human melanoma cell lines, we determined: cytotoxicity, lipofection efficiencies, colony forming capacity and bystander effects due to soluble and/or particulate factors secreted to the conditioned media after treatments.
resultsCD::UPRT induced cell death in a prodrug (5FC) concentration-dependent manner and was able to eliminate the sub-population of surviving cells with clonogenic capacity. Compared with human interferon-β gene transfer or the herpes simplex virus thymidine kinase/ganciclovir system, at 100 μM 5FC, CD::UPRT was more efficient in inducing cell death. The strong cytotoxic response contrasted with the low lipofection efficiencies (<5%), indicating a potent bystander effect. We analyzed the contribution of soluble and particulate factors released by SG lipofected cells to the conditioned media (CM) finding that they were able to deliver CD::UPRT genetic information and/or recombinant enzyme to recipient cells. When exposed to 5FC, the cells that received either supernatant or 12000×g pellet fractions of CM, efficiently activated the prodrug because of the acquired CD::UPRT activity and caused cell death.
conclusionThis suicide gene therapy approach, amplified by the release of free 5-fluorouracil and soluble and particulate factors containing CD::UPRT genetic information and/or enzyme, could have a great clinical potential for malignant melanoma.
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