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An In Vitro Protocol for Evaluating MicroRNA Levels, Functions, and Associated Target Genes in Tumor Cells
Published on: May 21, 2019
MicroRNA-708-5p affects proliferation and invasion of osteosarcoma cells by targeting URGCP
Cong Sui1, Debao Liu1, Yong Hu1
1Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China.
Abstract:
Osteosarcoma is an aggressive cancer of the skeletal system which remains a challenge for the current therapeutic strategies due to unclear etiology and molecular mechanisms of pathogenesis. The current study aimed to determine the expression levels, role and molecular mechanism of microRNA-708-5p (miR-708-5p) in the development of osteosarcoma. The expression level of miR-708-5p was detected using reverse transcription-quantitative polymerase chain reaction. miR-708-5p was overexpressed in SaOS-2 cells using miR-708-5p mimics. Cell viability, apoptosis, migration and invasion were determined using Cell Counting kit-8 assay, flow cytometry, wound healing and transwell assays, respectively. The results indicated that miR-708-5p was significantly downregulated in osteosarcoma tissues and cells, and its overexpression significantly inhibited cell viability, invasion and migration and induced apoptosis of SaOS-2 cells. Furthermore, the present results indicated that miR-708-5p directly targeted the 3'-untranslated region of up-regulator of cell proliferation (URGCP) and negatively regulated its expression in SaOS-2 cells. Taken together, the current study suggested that miR-708-5p may inhibit the growth and invasion of osteosarcoma cells via regulating the URGCP/NF-κB signaling pathway. Further research on these molecules in osteosarcoma may provide novel insights into the target therapy for this disease.
Insights
MicroRNA-708-5p (miR-708-5p) is downregulated in osteosarcoma. Restoring miR-708-5p levels inhibits cancer cell growth, invasion, and promotes apoptosis, offering potential therapeutic targets.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Osteosarcoma is an aggressive skeletal cancer with unclear pathogenesis.
- Current therapies face challenges due to limited understanding of molecular mechanisms.
Purpose of the Study:
- Investigate the expression, role, and mechanism of microRNA-708-5p (miR-708-5p) in osteosarcoma development.
- Determine if miR-708-5p acts as a tumor suppressor in osteosarcoma.
Main Methods:
- Quantified miR-708-5p expression using reverse transcription-quantitative polymerase chain reaction.
- Overexpressed miR-708-5p in SaOS-2 osteosarcoma cells.
- Assessed cell viability, apoptosis, migration, and invasion using standard assays.
Main Results:
- miR-708-5p was significantly downregulated in osteosarcoma tissues and cells.
- Overexpression of miR-708-5p inhibited cell viability, invasion, and migration.
- miR-708-5p overexpression induced apoptosis in SaOS-2 cells and targeted URGCP.
Conclusions:
- miR-708-5p acts as a tumor suppressor in osteosarcoma.
- miR-708-5p inhibits osteosarcoma growth and invasion by regulating the URGCP/NF-κB pathway.
- miR-708-5p represents a potential therapeutic target for osteosarcoma.
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