Treatment of cancer with a novel dual-targeted conditionally replicative adenovirus armed with mda-7/IL-24 gene

Related Experiment Video

Updated: Jul 5, 2026

Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
12:42

Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo

Published on: January 7, 2019

Jingjing Luo1, Qingmei Xia, Rui Zhang

  • 1Institute of Medicine and Biotechnology, School of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China.

Clinical Cancer Research : an Official Journal of the American Association for Cancer Research
|April 17, 2008
PubMed
Abstract

Insights

This study developed a novel oncolytic adenovirus (AdCN205-IL-24) for cancer therapy. It effectively targets tumor cells, expressing therapeutic genes and causing tumor regression with enhanced safety.

Area of Science:

  • Oncolytic virotherapy
  • Gene therapy
  • Adenovirus vector engineering

Background:

  • Oncolytic adenoviruses show promise for cancer treatment by destroying tumors and delivering therapeutic genes.
  • Improving vector specificity and transgene expression control is crucial for clinical application.

Purpose of the Study:

  • To engineer a replication-based transgene expression system using oncolytic adenoviruses.
  • To enhance cancer therapy efficacy and safety through controlled transgene expression.

Main Methods:

  • Replaced E3 genes (6.7K/gp19K) in adenoviruses with EGFP and IL-24 genes.
  • Utilized the adenoviral E3 promoter for transgene expression control.
  • Assessed transgene expression, viral replication, cytotoxicity in tumor and normal cells, and antitumor efficacy in an animal model.

Main Results:

  • AdCN205-IL-24 demonstrated high IL-24 expression in tumor cells, significantly exceeding cytomegalovirus promoter-driven expression.
  • Transgene insertion did not impair viral replication in tumor cells.
  • AdCN205-IL-24 exhibited potent cytotoxicity specifically in tumor cells, leading to tumor regression in vivo.

Conclusions:

  • AdCN205-IL-24 serves as a potent and safe oncolytic adenovirus vector for cancer therapy.
  • The engineered system offers improved control over transgene expression for enhanced therapeutic outcomes.

More Related Videos

A Nonviral Approach to Generate Transient Chimeric Antigen Receptor T Cells Using mRNA for Cancer Immunotherapy09:56

A Nonviral Approach to Generate Transient Chimeric Antigen Receptor T Cells Using mRNA for Cancer Immunotherapy

Published on: February 21, 2025

Experimental Melanoma Immunotherapy Model Using Tumor Vaccination with a Hematopoietic Cytokine09:15

Experimental Melanoma Immunotherapy Model Using Tumor Vaccination with a Hematopoietic Cytokine

Published on: February 24, 2023

Related Concept Videos

Tumor Immunotherapy01:27

Tumor Immunotherapy

Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
Treatment Resistent Cancers02:56

Treatment Resistent Cancers

Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
Cancer Vaccines01:30

Cancer Vaccines

Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
Treatment Resistant Cancers02:56

Treatment Resistant Cancers

Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...