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Updated: Jul 11, 2026

Human Pluripotent Stem Cell Based Developmental Toxicity Assays for Chemical Safety Screening and Systems Biology Data Generation
Published on: June 17, 2015
Cloning genes whose levels of expression are altered by metals: implications for human health research
1The Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY 10987, USA. rossman@env.med.nyu.edu
Abstract:
When cells are exposed to toxicants, changes in gene expression ensue. To date, there is little information on gene expression changes induced by metals in mammalian cells. The basic methods for identifying altered gene expression of both a temporary and a permanent nature are outlined, with examples drawn mostly from what is known about metal-induced changes in gene expression. The application of this information in the development of new biomarkers of exposure and effect, in identifying individuals with altered susceptibility to metal compounds, and in the choice of genes for microarrays is discussed.
Insights
Toxicant exposure alters cellular gene expression. This study outlines methods to identify temporary and permanent gene expression changes in mammalian cells due to metals, aiding biomarker development and susceptibility assessments.
Area of Science:
- Toxicology
- Molecular Biology
- Genetics
Background:
- Cellular exposure to toxicants triggers changes in gene expression.
- Limited data exists on metal-induced gene expression alterations in mammalian cells.
Purpose of the Study:
- To outline methods for identifying temporary and permanent gene expression changes induced by metals in mammalian cells.
- To discuss the application of this knowledge in developing biomarkers and assessing susceptibility.
Main Methods:
- Review of existing methodologies for detecting gene expression alterations.
- Focus on examples related to metal-induced gene expression changes.
- Discussion of applications in biomarker discovery and personalized medicine.
Main Results:
- Gene expression analysis provides insights into cellular responses to metal toxicants.
- Identification of both transient and stable changes in gene expression patterns.
- Potential for developing novel biomarkers for metal exposure and effect.
Conclusions:
- Understanding metal-induced gene expression changes is crucial for toxicology.
- Methods for gene expression analysis can be applied to identify biomarkers and assess individual susceptibility to metals.
- This knowledge supports the development of targeted health strategies and informed gene selection for microarrays.
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