Related Experiment Video
Updated: Jun 9, 2026
07:08
The Lambda Select cII Mutation Detection System
Published on: April 26, 2018
New and emerging technologies for genetic toxicity testing
Anthony M Lynch1, Jennifer C Sasaki, Rosalie Elespuru
1GlaxoSmithKline R&D, Ware, Hertfordshire, United Kingdom.
Environmental and Molecular Mutagenesis
|August 27, 2010
Summary
New technologies in genetic toxicology testing are reviewed to improve hazard and risk assessment. These advancements aim to refine follow-up testing for positive results in standard in vitro genetic toxicity assays, enhancing human risk evaluations.
Area of Science:
- Toxicology
- Genetics
- Biotechnology
Background:
- The International Life Sciences Institute (ILSI) Health and Environmental Sciences Institute (HESI) established a workgroup to assess the state-of-the-art in genetic toxicology testing.
- The workgroup focused on identifying novel technologies to enhance genotoxicity testing and in vivo hazard/risk assessment.
- A workshop in May 2008 discussed mature, maturing, and emerging technologies in the field.
Purpose of the Study:
- To review and identify promising new technologies in genetic toxicology.
- To evaluate how these technologies can improve genotoxicity testing and risk assessment.
- To align new technologies with the objectives of In Vitro Genetic Toxicity (IVGT) testing, particularly for follow-up assessments.
Main Methods:
- Compilation of abstracts from the New and Emerging Technologies Workshop.
- Inclusion of additional technologies considered by the workgroup.
- Analysis of each technology's strengths, weaknesses, opportunities, and threats (SWOT).
Main Results:
- An overview of various new and emerging technologies in genetic toxicology was presented.
- Technologies were assessed for their potential to meet IVGT objectives.
- Consideration was given to using new methods for follow-up testing of positive results in standard IVGT assays.
Conclusions:
- Emerging technologies offer potential to improve the weight of evidence and mechanistic understanding in genotoxicity testing.
- These advancements can lead to more refined genetic toxicity risk assessments for humans.
- The integration of new strategies is crucial for advancing the field of genetic toxicology.
More Related Videos
Related Concept Videos
02:46Genetic Screens
Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...
01:23Toxicity Testing in Animals
Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...
01:25Mutagenicity and Carcinogenicity
Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...
01:16In 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.
01:16In-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.