Abstract
Osteosarcoma (OS) is a type of tumor with high malignant behaviors. Increasing investigates have confirmed that long non-coding RNA HLA complex group 18 (lncRNA HCG18) acted as a tumor-promoting factor in multiple tumors. Nevertheless, the underlying mechanism of HCG18 on OS remains largely unclear. HCG18, miR-34a, and runt-related transcription factor 2 (RUNX2) expressions were detected by quantitative real-time PCR (RT-qPCR) or western blotting assays, respectively. The underlying tumorigenic phenotypes were detected by MTT, wound healing, transwell invasion, western blotting assays. Molecular interactions were verified by dual-luciferase report assay. HCG18 and RUNX2 were notably enhanced, whereas miR-34a was decreased in OS tumor tissues and cell lines. Functional experiments uncovered that HCG18 silencing significantly inhibited the capabilities of proliferation, migration, and invasion, while overexpression of HCG18 play the opposite roles. Furthermore, HCG18 directly bound to miR-34a, and miR-34a was confirm to be a negative regulator of RUNX2. Interestingly, the anti-tumor effects of HCG18 silencing were attenuated by miR-34a inhibitor and RUNX2 overexpression. Taken together, the present study suggested that HCG18 promoted the malignant biological behaviors of OS through regulating the miR-34a/RUNX2 pathway, implying HCG18 might serve as a new target for OS treatment.
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Data Availability
The datasets used or analyzed during the current study are available from the corresponding author on reasonable request.
Code Availability
Not applicable.
Abbreviations
- OS:
-
Osteosarcoma
- RUNX2:
-
Runt-related transcription factor 2
- HCG18:
-
HLA complex group 18
- LncRNA:
-
Long non-coding RNA
- RT-Qpcr:
-
RNA extraction and quantitative real-time PCR
- ceRNA:
-
Competing endogenous RNA
- miRNAs:
-
MicroRNAs
- FBS:
-
Fetal bovine serum
- DMEM:
-
Dulbecco’s modified Eagle’s medium
- PVDF:
-
Polyvinylidene difluoride
- RIP:
-
RNA-Binding Protein Immunoprecipitation
- SD:
-
Standard deviation
- ANOVA:
-
One-way analysis of variance
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Chen, YP., Zhang, DX., Cao, Q. et al. LncRNA HCG18 Promotes Osteosarcoma Cells Proliferation, Migration, and Invasion in by Regulating miR-34a/RUNX2 Pathway. Biochem Genet 61, 1035–1049 (2023). https://doi.org/10.1007/s10528-022-10294-5
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DOI: https://doi.org/10.1007/s10528-022-10294-5