Proteomic and microRNA data clarifying the effects of telomere shortening on cancer cells
Related Experiment Video
Updated: Apr 6, 2026

Utilizing Murine Inducible Telomerase Alleles in the Studies of Tissue Degeneration/Regeneration and Cancer
Published on: April 13, 2015
1The Felsenstein Medical Research Center, Rabin Medical Center and Sackler School of Medicine, Tel Aviv University, Israel.
Abstract:
In a previous study, we have shown that shortening of telomeres by telomerase inhibition sensitized cancer cells to cisplatinum, slower their migration, increased DNA damage and impaired DNA repair [1]. In the following study, we present a network model combining microRNA and proteomic profiling attempting to decipher the molecular mechanism underlying the effect of shortened telomeres on the obtained phenotype of cancer cells [2]. The microRNA and proteomic data were used for a network model construction, which provided us with several nodal candidates that may potentially mediate the shortened-telomeres dependent features. These protein expressions were experimentally validated, supporting their potential central role in this system [2]. In this article, we delineate the full proteomic data and a microarray analyses performed on cells with shortened telomeres compared to their cognate parental intact telomere cells. The data is attached as excel files. In principle, clarifying the mechanism behind telomere shortened phenotype may facilitate novel therapeutics development and may also obviate the time consuming process of telomere shortening achieved by telomerase inhibition.
Insights
Shortening cancer cell telomeres enhances cisplatinum sensitivity and impairs DNA repair. Network modeling identified key proteins mediating these effects, aiding new therapeutic development.
Area of Science:
- Molecular Biology
- Cancer Research
- Genomics
Background:
- Previous studies demonstrated telomere shortening sensitizes cancer cells to cisplatinum, reduces migration, and impairs DNA repair.
- Understanding the molecular mechanisms behind these telomere-shortening effects is crucial for developing novel cancer therapeutics.
Purpose of the Study:
- To decipher the molecular mechanisms underlying the phenotypic effects of shortened telomeres in cancer cells.
- To construct a network model integrating microRNA and proteomic data to identify key mediators.
- To provide full proteomic and microarray data for cells with shortened versus intact telomeres.
Main Methods:
- Network modeling integrating microRNA and proteomic profiling.
- Experimental validation of identified protein expression candidates.
- Microarray analysis of cells with shortened telomeres compared to parental cells.
Main Results:
- A network model identified several nodal candidates potentially mediating shortened-telomere dependent phenotypes.
- Experimental validation supported the central role of these identified protein expressions.
- Full proteomic and microarray data are provided for comparative analysis.
Conclusions:
- Clarifying the mechanism of telomere shortening can facilitate novel therapeutics development.
- This research provides valuable data for understanding telomere biology in cancer.
- Identifying key molecular mediators may offer alternative strategies to telomere shortening via telomerase inhibition.
Related Concept Videos
Replicative Cell Senescence
Telomeres and Telomerase
Telomeres and Telomerase
MicroRNAs
MicroRNAs
mTOR Signaling and Cancer Progression
The mTOR pathway or the...

