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Updated: Dec 15, 2025

Analysis of Combinatorial miRNA Treatments to Regulate Cell Cycle and Angiogenesis
Published on: March 30, 2019
MiR-613 blocked the progression of cervical cancer by targeting LETM1
1Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China. jirujing2010@163.com.
Objective:
The purpose of this study was to investigate the potential effects of miR-613 on the development of cervical squamous cell cancer (CSCC) and the relevant mechanism.
Patients And Methods:
The expression level of miR-613 was detected in CSCC tissues and cells by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). Thereafter, online prediction software and Luciferase reporter assays were used to evaluate the possible target of miR-613, and the effects of the miR-613 on SiHa cells were determined in vitro. Then, the changes of protein expression in cells were measured by Western blot. Finally, Cell Counting Kit-8 (CCK-8), wound healing and transwell assays were performed to analyze cell proliferation, invasion, and migration.
Results:
It was found that compared with that in normal tissues and cells, miR-613 expression was found suppressed in CSCC tissues and cells. Based on bioinformatics and Luciferase results, miR-613 could target and bind to LETM1. Besides, it was found that miR-613 could regulate the expression of LETM1 in SiHa cells, and miR-613 had a valuable suppressive effect on the proliferation, invasion, and migration of SiHa cells through the subsequent experiments. However, when co-transfection of miR-613 mimics and LV-LETM1 into SiHa cells, the anti-cancer effects of miR-613 on SiHa cells vanished.
Conclusions:
Taken all, this research discovered the function of miR-613 on CSCC by targeting LETM1, revealing that miR-613/LETM1 signal pathway might be a potential therapeutic target for the diagnosis and treatment of CSCC.
Insights
MicroRNA-613 (miR-613) is suppressed in cervical squamous cell cancer (CSCC). Restoring miR-613 inhibits CSCC cell proliferation and invasion by targeting LETM1, suggesting a potential therapeutic target.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Cervical squamous cell cancer (CSCC) is a significant global health concern.
- The role of microRNAs (miRNAs) in cancer development is increasingly recognized.
- Understanding specific miRNA functions, like miR-613, is crucial for targeted therapies.
Purpose of the Study:
- To investigate the role of miR-613 in cervical squamous cell cancer (CSCC) development.
- To elucidate the molecular mechanism underlying miR-613's function in CSCC.
- To identify potential therapeutic targets for CSCC based on miR-613.
Main Methods:
- Quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) to measure miR-613 expression in CSCC tissues and cells.
- Bioinformatics and Luciferase reporter assays to identify miR-613 targets.
- In vitro assays (CCK-8, wound healing, transwell) to assess cell proliferation, invasion, and migration.
- Western blot to analyze protein expression changes.
Main Results:
- miR-613 expression was significantly downregulated in CSCC tissues and cells compared to normal controls.
- LETM1 was identified as a direct target of miR-613.
- miR-613 suppressed the proliferation, invasion, and migration of CSCC cells (SiHa) in vitro.
- Overexpression of LETM1 reversed the anti-cancer effects of miR-613.
Conclusions:
- miR-613 plays a tumor-suppressive role in cervical squamous cell cancer (CSCC).
- The miR-613/LETM1 signaling pathway is implicated in CSCC progression.
- This pathway represents a potential therapeutic target for CSCC diagnosis and treatment.
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