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Analysis of Combinatorial miRNA Treatments to Regulate Cell Cycle and Angiogenesis
Published on: March 30, 2019
Role of miR-424 in the carcinogenesis
Soudeh Ghafouri-Fard1, Arian Askari2, Bashdar Mahmud Hussen3
1Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abstract:
Recent studies have revealed the impact of microRNAs (miRNAs) in the carcinogenic process. miR-424 is a miRNA whose role in this process is being to be identified. Experiments in the ovarian cancer, cervical cancer, hepatocellular carcinoma, neuroblastoma, breast cancer, osteosarcoma, intrahepatic cholangiocarcinoma, prostate cancer, endometrial cancer, non-small cell lung cancer, hemangioma and gastric cancer have reported down-regulation of miR-424. On the other hand, this miRNA has been found to be up-regulated in melanoma, laryngeal and esophageal squamous cell carcinomas, glioma, multiple myeloma and thyroid cancer. Expression of this miRNA is regulated by methylation status of its promoter. Besides, LINC00641, CCAT2, PVT1, LIN00657, LINC00511 and NNT-AS1 are among lncRNAs that act as molecular sponges for miR-424, thus regulating its expression. Moreover, several members of SNHG family of lncRNAs have been found to regulate expression of miR-424. This miRNA is also involved in the regulation of E2F transcription factors. The current review aims at summarization of the role of miR-424 in the process of cancer evolution and its impact on clinical outcome of patients in order to find appropriate markers for malignancies.
Insights
MicroRNA-424 (miR-424) plays a dual role in cancer, acting as both a tumor suppressor and promoter. Its dysregulation, influenced by lncRNAs and methylation, impacts cancer evolution and patient outcomes, suggesting potential as a malignancy marker.
Area of Science:
- Oncology
- Molecular Biology
- Epigenetics
Background:
- MicroRNAs (miRNAs) are critical regulators of gene expression implicated in carcinogenesis.
- The specific role of miR-424 in various cancers is an emerging area of research.
- Understanding miR-424's expression patterns and regulatory mechanisms is key to cancer research.
Purpose of the Study:
- To review and summarize the multifaceted role of miR-424 in cancer development.
- To investigate the impact of miR-424 on patient clinical outcomes.
- To identify miR-424 as a potential diagnostic or prognostic biomarker for malignancies.
Main Methods:
- Comprehensive literature review of studies investigating miR-424 in different cancer types.
- Analysis of reported miR-424 expression levels (up-regulation and down-regulation).
- Examination of regulatory mechanisms including promoter methylation and lncRNA interactions.
Main Results:
- miR-424 is down-regulated in numerous cancers including ovarian, breast, and lung cancer.
- Conversely, miR-424 is up-regulated in cancers such as melanoma, glioma, and thyroid cancer.
- Expression is modulated by promoter methylation and sponging activity of specific long non-coding RNAs (lncRNAs).
Conclusions:
- miR-424 exhibits context-dependent roles in cancer, acting as either an oncogene or tumor suppressor.
- Dysregulation of miR-424, influenced by epigenetic factors and lncRNAs, is linked to cancer progression.
- miR-424 holds promise as a potential biomarker for cancer diagnosis and prognosis.
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