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Updated: Jan 11, 2026

Identification of Transcription Factor Regulators using Medium-Throughput Screening of Arrayed Libraries and a Dual-Luciferase-Based Reporter
Published on: March 27, 2020
Transcriptional enhanced associate domain factor 1 regulates cortactin-binding protein 2 N-terminal-like to control
Qian Ma1,2, Liyong Zhang1, Shan Jiang1
1Department of Thyroid Surgery, Fujian Medical University Union Hospital, Fuzhou, China.
Objective:
Understanding the molecular mechanisms underlying papillary thyroid carcinoma (PTC) is crucial for identifying drug targets. This research aims to elucidate molecular interactions between transcriptional enhanced associate domain factor 1 (TEAD1) and cortactin-binding protein 2 N-terminal-like (CTTNBP2NL) in PTC cells and assess their effect on cell proliferation, apoptosis, and clonogenicity.
Material And Methods:
Transcriptome data were used to identify differences in TEAD1 and CTTNBP2NL in PTC tissues. The correlation of gene expression with overall patient survival was analyzed. Laboratory experiments were conducted using thyroid papillary carcinoma 1 (TPC1) cells, where the overexpression of TEAD1 and the downregulation of CTTNBP2NL were manipulated. The regulatory dynamics between the two genes were confirmed through molecular biochemistry experiments. The effects on cell proliferation were evaluated using cell proliferation assays, and the impact on clonogenicity was assessed through colony formation assays.
Results:
Significant differences in TEAD1 and CTTNBP2NL were observed in PTC, with both genes showing strong correlations with overall patient survival. In TPC1 cells, the overexpression of TEAD1 remarkably mitigated the negative effects caused by CTTNBP2NL downregulation, reduced cell proliferation, and increased apoptosis. Quantitative polymerase chain reaction and Western blot analyses confirmed the regulatory relationship between TEAD1 and CTTNBP2NL. The overexpression of TEAD1 markedly enhanced the proliferative capacity of cells, while silencing CTTNBP2NL resulted in diminished cell growth. Clonogenic assays revealed that TEAD1 promoted colony formation, indicating its role in boosting cell survival and proliferation.
Conclusion:
TEAD1 plays a critical compensatory role in PTC cells by alleviating the adverse effects of CTTNBP2NL deficiency, thereby promoting cell survival and growth. Hence, TEAD1 could serve as a potential therapeutic target.
Insights
Transcriptional enhanced associate domain factor 1 (TEAD1) compensates for cortactin-binding protein 2 N-terminal-like (CTTNBP2NL) deficiency in papillary thyroid carcinoma (PTC). TEAD1 promotes PTC cell survival and growth, indicating its potential as a therapeutic target.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Papillary thyroid carcinoma (PTC) molecular mechanisms require elucidation for drug target identification.
- Transcriptional enhanced associate domain factor 1 (TEAD1) and cortactin-binding protein 2 N-terminal-like (CTTNBP2NL) roles in PTC are not fully understood.
Purpose of the Study:
- To investigate the molecular interactions between TEAD1 and CTTNBP2NL in PTC cells.
- To assess the impact of these interactions on PTC cell proliferation, apoptosis, and clonogenicity.
Main Methods:
- Differential gene expression analysis of TEAD1 and CTTNBP2NL in PTC tissues.
- Correlation analysis of gene expression with patient survival.
- In vitro experiments using TPC1 cells with manipulated TEAD1 and CTTNBP2NL levels.
- Molecular biochemistry, cell proliferation, and colony formation assays.
Main Results:
- TEAD1 and CTTNBP2NL expression levels significantly correlated with overall patient survival in PTC.
- TEAD1 overexpression mitigated CTTNBP2NL downregulation effects, reducing proliferation and increasing apoptosis in TPC1 cells.
- TEAD1 promoted cell proliferation and colony formation, while CTTNBP2NL silencing diminished cell growth.
Conclusions:
- TEAD1 plays a compensatory role in PTC by alleviating CTTNBP2NL deficiency, promoting cell survival and growth.
- TEAD1 represents a potential therapeutic target for papillary thyroid carcinoma.
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