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Updated: Oct 1, 2025

Mapping the Structure-Function Relationships of Disordered Oncogenic Transcription Factors Using Transcriptomic Analysis
Published on: June 27, 2020
E2F4 may be a core transcription factor in the lncRNA-TF regulatory network in cervical cancer
Haiyan Yang1,2, Xiaoli Qu3, Jiangang Huang4
1Department of Obstetrics Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Background:
Cervical cancer is the most common gynecological cancer worldwide and is associated with high morbidity and mortality. Despite improvements in therapeutic strategies, the network regulation mechanism remains unclear and the treatment effect is not satisfactory. Therefore, there is a need to continue studying the mechanism of cervical cancer to explore effective gene targets and precise targeted therapy drugs.
Methods:
First, three paired tissues (cancer tissues and noncancerous tissues) from patients with cervical squamous cell carcinoma were collected, grouped, and analyzed by microarray. Second, differentially expressed mRNAs (DEMs) and differentially expressed lncRNAs (DELs) (|fold change| ≥ 2 and p < 0.05) between the two groups were screened. For DEMs, functional annotation and pathway analysis were performed using DAVID. Functional prediction of DELs was then performed and their cis-regulatory and trans-regulatory networks were explored.
Results:
Function prediction of DELs (both up-regulated and down-regulated) shows that the highest frequency Cellular Component (CC) item is cytosol, the highest frequency Molecular function (MF) item is mitotic cell cycle and the highest frequency Biological Process (BP) item is protein binding. Through cis-regulation analysis of DELs, the cis-regulatory relationship of 96 DELs was predicted. The lncRNA-trans-regulation network analysis suggested that E2F4 may be the core transcription factor in the lncRNA-TF regulatory network in cervical cancer.
Conclusions:
The lncRNA-TF regulatory network plays an important role in the occurrence and progression of cervical cancer, and E2F4 may be a critical transcription factor in the regulatory network.
Insights
This study reveals that the long non-coding RNA-transcription factor (lncRNA-TF) regulatory network is crucial in cervical cancer development. E2F4 is identified as a key transcription factor within this network, offering potential targets for precise therapies.
Area of Science:
- Oncology
- Molecular Biology
- Genomics
Background:
- Cervical cancer is a leading cause of gynecological cancer mortality globally.
- Current therapeutic strategies for cervical cancer have limitations, necessitating further research into its regulatory mechanisms.
- Identifying novel gene targets and targeted therapies is crucial for improving treatment outcomes.
Purpose of the Study:
- To investigate the regulatory network mechanisms underlying cervical cancer.
- To identify potential gene targets for precise targeted therapy in cervical cancer.
- To explore the role of differentially expressed long non-coding RNAs (DELs) and their regulatory networks.
Main Methods:
- Microarray analysis of three paired cervical squamous cell carcinoma and noncancerous tissues.
- Screening of differentially expressed mRNAs (DEMs) and DELs (|fold change| ≥ 2, p < 0.05).
- Functional annotation and pathway analysis of DEMs; functional prediction and cis/trans-regulatory network analysis of DELs.
Main Results:
- Functional prediction of DELs indicated significant enrichment in cytosol (Cellular Component), mitotic cell cycle (Molecular Function), and protein binding (Biological Process).
- Cis-regulation analysis predicted 96 DELs involved in cis-regulatory relationships.
- lncRNA-trans-regulation network analysis identified E2F4 as a potential core transcription factor in cervical cancer.
Conclusions:
- The lncRNA-TF regulatory network significantly influences the occurrence and progression of cervical cancer.
- E2F4 emerges as a critical transcription factor within the identified lncRNA-TF regulatory network.
- These findings suggest E2F4 as a potential therapeutic target for cervical cancer treatment.
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