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Updated: Feb 6, 2026

High-throughput Screening for Chemical Modulators of Post-transcriptionally Regulated Genes
Published on: March 3, 2015
Endogenous HIF2A reporter systems for high-throughput functional screening
M Nazhif Zaini1, Saroor A Patel1, Saiful E Syafruddin1,2
1MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Box 197, Biomedical Campus, Cambridge, CB2 0XZ, United Kingdom.
Abstract:
Tissue-specific transcriptional programs control most biological phenotypes, including disease states such as cancer. However, the molecular details underlying transcriptional specificity is largely unknown, hindering the development of therapeutic approaches. Here, we describe novel experimental reporter systems that allow interrogation of the endogenous expression of HIF2A, a critical driver of renal oncogenesis. Using a focused CRISPR-Cas9 library targeting chromatin regulators, we provide evidence that these reporter systems are compatible with high-throughput screening. Our data also suggests redundancy in the control of cancer type-specific transcriptional traits. Reporter systems such as those described here could facilitate large-scale mechanistic dissection of transcriptional programmes underlying cancer phenotypes, thus paving the way for novel therapeutic approaches.
Insights
Researchers developed new reporter systems to study HIF2A, a key factor in kidney cancer. These tools enable high-throughput screening to understand cancer-specific gene activity and develop new therapies.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Tissue-specific gene expression dictates biological functions and diseases like cancer.
- Understanding the molecular basis of transcriptional specificity is crucial for developing targeted therapies.
- Hypoxia-inducible factor 2-alpha (HIF2A) is a significant driver of renal oncogenesis.
Purpose of the Study:
- To develop novel experimental reporter systems for interrogating endogenous HIF2A expression.
- To assess the compatibility of these reporter systems with high-throughput screening.
- To investigate the regulatory mechanisms controlling cancer-specific transcriptional traits.
Main Methods:
- Development of novel reporter systems for endogenous HIF2A expression analysis.
- Utilizing a focused CRISPR-Cas9 library targeting chromatin regulators.
- Employing high-throughput screening methodologies.
Main Results:
- Demonstrated the utility of reporter systems for studying endogenous HIF2A expression.
- Confirmed the compatibility of reporter systems with high-throughput screening approaches.
- Identified potential redundancy in the regulation of cancer type-specific transcriptional traits.
Conclusions:
- Novel reporter systems provide a powerful tool for dissecting transcriptional programs in cancer.
- These systems facilitate large-scale mechanistic studies of cancer phenotypes.
- The findings pave the way for developing novel therapeutic strategies targeting transcriptional drivers in cancer.
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