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Updated: Dec 11, 2025

Author Spotlight: RNA FISH for Locating lncRNA-SNHG6 in Osteosarcoma Cells
Published on: June 16, 2023
LncRNA LINC00210 regulated radiosensitivity of osteosarcoma cells via miR-342-3p/GFRA1 axis
Pan He1, Yong-Qiang Xu1, Zhi-Jun Wang1
1Department of Traumatic and Osteopathy, Hunan Provincial People's Hospital, Changsha, China.
Background:
Radiotherapy is an effective strategy for preventing cancer metastasis, including osteosarcoma. However, cancer radioresistance limits the efficiency of radiotherapy. Therefore, it is essential to investigate the mechanism of osteosarcoma radioresistance.
Methods:
The osteosarcoma tissues and adjacent healthy tissues were collected from 53 osteosarcoma patients. The expression of LINC00210, miR-342-3p, and GFRA1 mRNA were determined using qRT-PCR. Cell viability, cell apoptosis, and cell surviving fraction were determined by MTT assay, flow cytometry, and colony formation assay, respectively. Western blot was performed to detect the protein levels. Luciferase assay was conducted to verify the relationship between LINC00210, miR-342-3p, and GFRA1.
Results:
LINC00210 and GFRA1 were up-regulated, and miR-342-3p was down-regulated in osteosarcoma tissues and cells. The expression of LINC00210 in osteosarcoma was negatively related to miR-342-3p expression and positively associated with GFRA1. Besides, there was a negative correlation between LINC00210 and GFRA1 expression in osteosarcoma. Also, LINC00210 and GFRA1 were up-regulated, and miR-342-3p was down-regulated in osteosarcoma cells exposed to 4 Gy irradiation treatment. Furthermore, either LINC00210 knockdown or miR-342-3p overexpression enhanced the radiosensitivity of osteosarcoma cells. Moreover, LINC00210 increased GFRA1 expression via sponging miR-342-3p. Additionally, LINC00210 knockdown improved the radiosensitivity of osteosarcoma cells by regulating GFRA1 expression via sponging miR-342-3p.
Conclusion:
LINC00210 modulated the radiosensitivity of osteosarcoma cells via the miR-342-3p/GFRA1 axis, making LINC00210 a novel target for improving radiotherapy efficiency in osteosarcoma.
Insights
Long non-coding RNA LINC00210 enhances osteosarcoma radioresistance by regulating the miR-342-3p/GFRA1 axis. Targeting LINC00210 may improve radiotherapy efficacy for osteosarcoma patients.
Area of Science:
- Oncology
- Molecular Biology
- Radiotherapy Research
Background:
- Radiotherapy is a key strategy against osteosarcoma metastasis.
- Cancer radioresistance poses a significant challenge to effective radiotherapy.
- Understanding osteosarcoma radioresistance mechanisms is crucial for improving treatment outcomes.
Purpose of the Study:
- To investigate the role of LINC00210, miR-342-3p, and GFRA1 in osteosarcoma radioresistance.
- To elucidate the molecular mechanism underlying osteosarcoma radioresistance.
- To identify potential therapeutic targets for enhancing radiotherapy in osteosarcoma.
Main Methods:
- Analysis of LINC00210, miR-342-3p, and GFRA1 expression in osteosarcoma tissues and cells using qRT-PCR.
- Assessment of cell viability, apoptosis, and radiosensitivity via MTT, flow cytometry, and colony formation assays.
- Luciferase assays to confirm the interaction between LINC00210, miR-342-3p, and GFRA1.
Main Results:
- LINC00210 and GFRA1 were upregulated, while miR-342-3p was downregulated in osteosarcoma.
- LINC00210 directly targeted miR-342-3p, leading to increased GFRA1 expression.
- LINC00210 knockdown or miR-342-3p overexpression significantly enhanced osteosarcoma cell radiosensitivity.
Conclusions:
- LINC00210 promotes osteosarcoma radioresistance through the miR-342-3p/GFRA1 pathway.
- LINC00210 represents a promising therapeutic target for overcoming radioresistance in osteosarcoma.
- Modulating the LINC00210/miR-342-3p/GFRA1 axis could enhance radiotherapy effectiveness.
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