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Updated: Oct 4, 2025

In Vivo Inhibition of MicroRNA to Decrease Tumor Growth in Mice
Published on: August 23, 2019
LINC00052 suppressed glioma cell proliferation and invasion by downregulating insulin-like growth factor 2
Yinzi Piao1, Mingyang Li2, Qian Zhang2
1Otolaryngology Department, Qingdao Municipal Hospital, Qingdao 266000, China.
Background:
Recent studies have discovered a subtype of noncoding RNAs, long noncoding RNAs (lncRNAs), which are dysregulated in various tumors and associated with carcinogenesis. This study aims to identify the role of lncRNA LINC00052 in glioma tumorigenesis.
Methods:
LINC00052 expression was monitored in glioma samples and glioma cells through RT-qPCR. Besides, proliferation assay, transwell assay and wound healing assay were performed to uncover the role of LINC00052 in glioma. Furthermore, the interaction between LINC00052 and insulin-like growth factor 2 (IGF2) in glioma was studied through RT-qPCR and western blot assay.
Results:
LINC00052 expression was remarkably downregulated in glioma samples compared with that in normal brain samples. Moreover, cell proliferation, cell invasion and cell migration in glioma were inhibited after overexpression of LINC00052 in vitro. Moreover, after overexpression of LINC00052, IGF2 was downregulated at mRNA and protein level in vitro. Besides, the expression of IGF2 in tumor tissues was negatively correlated to the expression of LINC00052.
Conclusions:
These results above suggest that LINC00052 could repress cell migration, invasion and proliferation in glioma through downregulating IGF2, which may offer a new therapeutic intervention for glioma patients.
Insights
Long noncoding RNA LINC00052 acts as a tumor suppressor in glioma by inhibiting cell migration, invasion, and proliferation. It achieves this by downregulating insulin-like growth factor 2 (IGF2), offering a potential therapeutic target for glioma.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Long noncoding RNAs (lncRNAs) are implicated in various cancers.
- Dysregulation of lncRNAs, including LINC00052, is linked to carcinogenesis.
- Glioma tumorigenesis involves complex molecular alterations.
Purpose of the Study:
- To investigate the role of lncRNA LINC00052 in glioma development.
- To elucidate the molecular mechanisms underlying LINC00052's function in glioma.
- To assess the potential of LINC00052 as a therapeutic target for glioma.
Main Methods:
- Quantitative real-time PCR (RT-qPCR) to measure LINC00052 expression in glioma tissues and cells.
- In vitro assays including proliferation, Transwell invasion, and wound healing assays to assess LINC00052 function.
- Western blot analysis to evaluate protein expression changes and confirm interactions.
Main Results:
- LINC00052 expression was significantly downregulated in glioma samples compared to normal brain tissues.
- Overexpression of LINC00052 inhibited glioma cell proliferation, invasion, and migration in vitro.
- LINC00052 overexpression led to the downregulation of insulin-like growth factor 2 (IGF2) at both mRNA and protein levels.
- A negative correlation was observed between LINC00052 and IGF2 expression in glioma tissues.
Conclusions:
- LINC00052 functions as a tumor suppressor in glioma.
- LINC00052 represses glioma cell migration, invasion, and proliferation by downregulating IGF2.
- LINC00052-IGF2 axis presents a potential novel therapeutic strategy for glioma treatment.
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