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Updated: Jul 1, 2025

Author Spotlight: RNA FISH for Locating lncRNA-SNHG6 in Osteosarcoma Cells
Published on: June 16, 2023
Circular RNA circ_0096041 promotes osteosarcoma cell proliferation and migration via sponging miR-556-5p and
Fulin Zhou1, Hao Wu2, Zhen Yin3
1Department of Orthopedics, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213003, China. zfulin@gmail.com.
Abstract:
Strategies targeting lin-28 homolog A (LIN28A) for the treatment of osteosarcoma are limited, even though salient findings have illustrated the crucial role of LIN28A in bone deformities and cancer. In the present study, we proved circ_0096041, one of the circular RNAs (circRNAs) with significant upregulated expression in osteosarcoma, to be notably engaged in the progression of osteosarcoma. We elucidated that osteosarcoma patients with highly expressed circ_0096041 had relatively worse prognoses. We determined that circ_0096041 potentially sponge miR-556-5p using the Circular RNA Interactome database. Meanwhile, we proved circ_0096041 was associated with miR-556-5p. Furthermore, we determined that miR-556-5p was targeted by LIN28A directly, evidenced by in silico analysis using the miRWALK tool and in vitro analysis. Functionally, our experimental setting aimed to explore the function of circ_0096041/miR-556-5p/LIN28A axis in vitro and in vivo. Our findings demonstrated that circ_0096041 boosted the proliferation and migration of osteosarcoma via LIN28A/miR-556-5p axis. In vivo models were further established to estimate the metastasis promoted by circ_0096041. This research elucidated the enhanced osteosarcoma progression by circ_0096041 and its potential mechanism, which provided innovative targets for osteosarcoma treatment.
Insights
Circular RNA circ_0096041 promotes osteosarcoma progression by sponging miR-556-5p and upregulating LIN28A (lin-28 homolog A). This pathway enhances tumor cell proliferation and migration, offering new therapeutic targets for osteosarcoma.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- LIN28A (lin-28 homolog A) is implicated in osteosarcoma development, but targeted therapies are limited.
- Circular RNAs (circRNAs) are increasingly recognized for their roles in cancer progression.
Purpose of the Study:
- To investigate the role of circ_0096041 in osteosarcoma progression.
- To elucidate the molecular mechanism involving circ_0096041, miR-556-5p, and LIN28A in osteosarcoma.
Main Methods:
- Expression analysis of circ_0096041 in osteosarcoma tissues.
- Bioinformatic prediction and experimental validation of circ_0096041 sponging miR-556-5p.
- In silico and in vitro validation of LIN28A targeting miR-556-5p.
- In vitro and in vivo functional assays to assess the impact of the circ_0096041/miR-556-5p/LIN28A axis on osteosarcoma.
Main Results:
- Circ_0096041 expression is significantly upregulated in osteosarcoma and correlates with poor prognosis.
- Circ_0096041 acts as a sponge for miR-556-5p.
- LIN28A directly targets miR-556-5p.
- Circ_0096041 promotes osteosarcoma cell proliferation and migration by regulating the miR-556-5p/LIN28A axis.
- Circ_0096041 promotes osteosarcoma metastasis in vivo.
Conclusions:
- Circ_0096041 plays a critical role in promoting osteosarcoma progression and metastasis.
- The circ_0096041/miR-556-5p/LIN28A axis represents a novel regulatory pathway in osteosarcoma.
- Circ_0096041 is a potential therapeutic target for osteosarcoma treatment.
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