Related Experiment Video
Updated: Oct 12, 2025
Utilizing Functional Genomics Screening to Identify Potentially Novel Drug Targets in Cancer Cell Spheroid Cultures
Published on: December 26, 2016
Transcriptional and Metabolic Investigation in 5'-Nucleotidase Deficient Cancer Cell Lines
Octavia Cadassou1, Prescillia Forey1, Christelle Machon1,2
1Univ Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, 69008 Lyon, France.
Abstract:
Enzymes of nucleoside and nucleotide metabolism regulate important cellular processes with potential impacts on nucleotide-unrelated parameters. We have used a set of CRISPR/Cas9-modified cell models expressing both, one, or none of the 5'-nucleotidases cN-II and CD73, together with RNA sequencing and targeted metabolomics, to decipher new regulatory roles of these proteins. We observed important transcriptional modifications between models as well as upon exposure to adenosine. Metabolite content varied differently between cell models in response to adenosine exposure but was rather similar in control conditions. Our original cell models allowed us to identify a new unobvious link between proteins in the nucleotide metabolism and other cellular pathways. Further analyses of our models, including additional experiments, could help us to better understand some of the roles played by these enzymes.
Insights
Researchers explored the roles of 5'-nucleotidases (cN-II and CD73) in cellular processes using modified cell models. They discovered new links between nucleotide metabolism enzymes and other cellular pathways, revealing significant transcriptional and metabolic changes.
Area of Science:
- Biochemistry
- Molecular Biology
- Cellular Metabolism
Background:
- Nucleoside and nucleotide metabolism enzymes play crucial roles in cellular functions.
- 5'-nucleotidases, such as cN-II and CD73, are key regulators in these pathways.
- Understanding their broader impact on nucleotide-unrelated cellular parameters is essential.
Purpose of the Study:
- To investigate the regulatory roles of 5'-nucleotidases cN-II and CD73.
- To identify new connections between nucleotide metabolism and other cellular pathways.
- To analyze transcriptional and metabolic changes in response to enzyme modulation and adenosine exposure.
Main Methods:
- Utilized CRISPR/Cas9 technology to create cell models with varying expression of cN-II and CD73.
- Performed RNA sequencing to analyze global gene expression changes.
- Conducted targeted metabolomics to quantify metabolite levels.
Main Results:
- Observed significant transcriptional modifications across different cell models and upon adenosine stimulation.
- Demonstrated distinct metabolite content variations in response to adenosine exposure between cell models.
- Identified novel, non-obvious links between nucleotide metabolism enzymes and other cellular pathways.
Conclusions:
- The study successfully established novel cell models to dissect the functions of cN-II and CD73.
- New regulatory roles for these 5'-nucleotidases, impacting nucleotide-unrelated cellular processes, were uncovered.
- Further research using these models promises deeper insights into enzyme functions and cellular regulation.
Related Concept Videos
02:55The Nucleolus
02:53Adaptive Mechanisms in Cancer Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
01:28Biosynthesis of Nucleic Acids