Gene therapy for the treatment of cancer

Area of Science:

• Oncology
• Molecular Biology
• Biotechnology

Background:

• Understanding the molecular basis of neoplasia enables targeted gene therapy for cancer.
• Gene therapy introduces genetic material for therapeutic purposes, offering novel treatment strategies.

Purpose of the Study:

• To review various gene therapy approaches for cancer treatment.
• To discuss the clinical progress, limitations, and future potential of gene therapy in oncology.

Main Methods:

• Overview of established gene therapy strategies including mutation compensation, genetic immunopotentiation, molecular chemotherapy, inhibition of angiogenesis, replicative vector oncolysis, and chemosensitization/radiosensitization.
• Analysis of initiated clinical trials evaluating safety, toxicity, and efficacy.
• Identification of limitations such as in vivo selective tumor delivery, gene expression, immune response, and normal tissue toxicity.

Main Results:

• Promising preclinical results have led to the initiation of clinical trials for various gene therapy approaches.
• Combined modality therapy integrating gene therapy with chemotherapy or radiation therapy demonstrates encouraging outcomes.
• Identified limitations include challenges in vector delivery, gene expression, immunogenicity, and off-target toxicity.

Conclusions:

• Gene therapy presents a promising avenue for cancer treatment, with several distinct approaches under investigation.
• Overcoming limitations in vector design and delivery is crucial for advancing gene therapy efficacy.
• The integration of gene therapy with conventional treatments is expected to enhance its role in clinical oncology.