Encapsulated cells to focus the metabolic activation of anticancer drugs

Area of Science:

• Oncology
• Gene Therapy
• Biotechnology

Background:

• Suicide gene/prodrug cancer therapy initially used viral vectors.
• Viral delivery faced limitations due to inefficient gene transfer to tumor cells.

Purpose of the Study:

• To review encapsulated cell technology for cancer gene therapy.
• To discuss cell types, suicide genes, and prodrugs used in trials.
• To explore future advancements in this therapeutic strategy.

Main Methods:

• Encapsulation of genetically modified cells overexpressing suicide genes.
• Implantation of encapsulated cells adjacent to solid tumors.
• Systemic administration of prodrugs to activate the suicide gene therapy.

Main Results:

• Review of preclinical and clinical trial data for various cell types, genes, and prodrugs.
• Demonstrated potential of encapsulated cells to overcome delivery inefficiencies.
• Identified key components and outcomes of this therapeutic approach.

Conclusions:

• Encapsulated suicide gene-modified cells represent an effective alternative for cancer gene therapy.
• This strategy enhances localized prodrug activation and minimizes systemic toxicity.
• Further development of second-generation approaches is crucial for improved efficacy.