Adenoviral gene therapy for cancer: from vectors to targeted and replication competent agents (review)

Area of Science:

• Oncology
• Molecular Biology
• Gene Therapy

Background:

• Gene therapy presents a novel strategy for treating cancers resistant to conventional therapies.
• Approaches leverage molecular distinctions between normal and tumor cells.
• Adenoviruses are frequently utilized as gene delivery vehicles with a strong safety profile in cancer patients.

Purpose of the Study:

• To review current advancements in adenoviral gene therapy for cancer.
• To highlight strategies for improving tumor targeting and efficacy.
• To discuss the potential of replication-competent agents and combination therapies.

Main Methods:

• Review of current clinical development strategies in adenoviral cancer gene therapy.
• Focus on mutation compensation, molecular chemotherapy, and replication-competent viruses.
• Examination of enhanced targeting and infectivity strategies.

Main Results:

• Promising early results reported for mutation compensation, molecular chemotherapy, and replication-competent viruses.
• Adenoviral gene therapy demonstrates excellent safety in cancer patients.
• Improved tumor penetration and local anti-tumor effect observed with replication-competent agents.
• Enhanced infectivity strategies overcome variable receptor expression on tumor cells.
• Adenoviral approaches show no cross-resistance with other treatments and frequent synergistic effects.

Conclusions:

• Adenoviral cancer gene therapy is a rapidly developing field with significant potential.
• Improved targeting, replication-competent agents, and enhanced infectivity are key areas of advancement.
• Combination treatments are anticipated as the first routine clinical applications for adenoviral gene therapy.