Related Experiment Video
Updated: Aug 9, 2026

09:02
Pre-Conditioning the Airways of Mice with Bleomycin Increases the Efficiency of Orthotopic Lung Cancer Cell Engraftment
Published on: June 28, 2018
Gene replacement strategies for lung cancer
1Department of Thoracic and Cardiovascular Surgery, University of Texas M.D. Anderson Cancer Center, Houston 77030, USA.
Current Opinion in Oncology
|April 29, 1998
Summary
Cancer gene therapy shows promise by restoring critical gene functions to halt tumor growth. Early trials demonstrate tumor regression, offering a novel treatment with a potentially high therapeutic index.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Cancer is understood to have a genetic origin, stemming from somatic mutations in genes controlling essential cellular functions.
- Restoring the function of key gene products can yield significant antitumor effects.
Purpose of the Study:
- To explore the potential of gene therapy in cancer treatment by restoring critical gene functions.
- To evaluate the efficacy of gene transfer for inducing tumor regression.
Main Methods:
- Gene transfer techniques, including direct intratumoral injection, were employed.
- Preclinical studies and Phase I clinical trials in non-small cell lung cancer were conducted.
Main Results:
- Restoration of wild-type p53 function via gene transfer induced cell-cycle arrest or apoptosis.
- Similar effects were observed with other oncogenes and tumor suppressor genes.
- Intratumoral gene delivery demonstrated efficiency in mediating tumor regression.
Conclusions:
- Gene replacement therapy offers a unique mechanism of action for cancer treatment.
- This approach has shown potential for clinically significant antitumor effects.
- Early-stage clinical trials suggest a potentially high therapeutic index for gene therapy in cancer.
Related Concept Videos
In-vitro Mutagenesis
To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.
Gene Therapy
Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be inserted. The...

