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Author Spotlight: Replicating Human Osteosarcoma Progression in Immunodeficient Mice for Cancer Study
Published on: March 22, 2024
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DDX11-AS1 contributes to osteosarcoma progression via stabilizing DDX11
Hui Zhang1, Jiangtao Lin2, Junjun Chen3
1Shanghai Ocean University, No. 999 Hucheng Ring Road, Pudong New Area, 201306, Shanghai, China.
Life Sciences
|February 5, 2020
Summary
Long noncoding RNA DDX11-AS1 promotes osteosarcoma progression by stabilizing DDX11. Downregulating DDX11-AS1 inhibits tumor cell proliferation, metastasis, and epithelial-mesenchymal transition.
Area of Science:
- Oncology
- Molecular Biology
- Gene Regulation
Background:
- Long noncoding RNAs (lncRNAs) are critical regulators in tumor progression.
- DDX11-AS1, a lncRNA, is implicated in tumorigenesis, but its role in osteosarcoma is unclear.
Purpose of the Study:
- To investigate the regulatory role of DDX11-AS1 in osteosarcoma.
- To elucidate the molecular mechanisms underlying DDX11-AS1's function in osteosarcoma.
Main Methods:
- Loss-of-function assays to assess DDX11-AS1's impact on osteosarcoma cells.
- Molecular mechanism studies including RNA-binding protein assays and miRNA sponging analysis.
- In vitro and in vivo rescue experiments.
Main Results:
- DDX11-AS1 expression is significantly upregulated in osteosarcoma.
- Reduced DDX11-AS1 expression inhibits osteosarcoma cell proliferation, metastasis, and epithelial-mesenchymal transition (EMT).
- DDX11-AS1 sponges miR-873-5p, upregulating DDX11 expression and promoting osteosarcoma progression by stabilizing DDX11 mRNA via IGF2BP2 interaction.
Conclusions:
- DDX11-AS1 acts as an oncogenic lncRNA in osteosarcoma.
- DDX11-AS1 promotes osteosarcoma progression through the DDX11/IGF2BP2 axis.
- Targeting DDX11-AS1 may offer a therapeutic strategy for osteosarcoma.
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