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Updated: Dec 30, 2025

In Vivo Inhibition of MicroRNA to Decrease Tumor Growth in Mice
Published on: August 23, 2019
miR-132 and miR-212 cluster function as a tumor suppressor in thyroid cancer cells by CSDE1 mediated
Tong Chen1, Mingdong Lu1, Xiang Zhou1
1Department of General Surgery, The Second Affiliated Hospital of Wenzhou Medical University Wenzhou, China.
Abstract:
microRNAs (miRNAs) are small non-coding RNA molecules which have been reported to be associated with the development of cancers. However, the role of miRNAs in thyroid cancer remains unclear. Here, we identified that miR-132/212 cluster as tumor suppressor in thyroid cancer. Overexpression or knockdown of miR-132/212 in thyroid cancer cells resulted in inhibited or enhanced proliferation. Furthermore, CSDE1 was identified as the direct and functional target of miR-132/212. Knockdown of CSDE1 expression upregulated PTEN expression and inhibits AKT activation. Suppressed proliferation was also observed in CSDE1 inhibition cells. Moreover, overexpression of CSDE1 reversed miR-132/212 mediated proliferation suppression. In summary, our findings highlight the importance of miR-132/212 as tumor suppressor in thyroid cancer by directly targeting CSDE1.
Insights
The miR-132/212 microRNA cluster acts as a tumor suppressor in thyroid cancer. It inhibits cancer cell proliferation by directly targeting CSDE1, revealing a new therapeutic pathway.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- MicroRNAs (miRNAs) are implicated in various cancers.
- The specific role of miRNAs in thyroid cancer pathogenesis is not fully understood.
Purpose of the Study:
- To investigate the function of the miR-132/212 cluster in thyroid cancer.
- To identify the molecular targets and mechanisms of miR-132/212 in thyroid cancer.
Main Methods:
- Assessing the impact of miR-132/212 overexpression and knockdown on thyroid cancer cell proliferation.
- Identifying direct targets of miR-132/212 using molecular assays.
- Analyzing the downstream effects on signaling pathways like PTEN/AKT.
Main Results:
- The miR-132/212 cluster functions as a tumor suppressor in thyroid cancer.
- miR-132/212 directly targets and downregulates CSDE1 expression.
- CSDE1 inhibition leads to PTEN upregulation and suppressed AKT activation, inhibiting proliferation.
Conclusions:
- miR-132/212 acts as a tumor suppressor in thyroid cancer by targeting CSDE1.
- This pathway highlights miR-132/212 as a potential therapeutic target for thyroid cancer treatment.
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