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. 2024 Dec;82(4):3585-3595.
doi: 10.1007/s12013-024-01446-y. Epub 2024 Aug 2.

miR-144-3p Targets GABRB2 to Suppress Thyroid Cancer Progression In Vitro

Cheng Xiu  1 , Xiaocong Deng  1 , Da Deng  1 , Tao Zhou  1 , Chuiguang Jiang  1 , Di Wu  1 , Yong Qian  2
Affiliations

miR-144-3p Targets GABRB2 to Suppress Thyroid Cancer Progression In Vitro

Cheng Xiu et al. Cell Biochem Biophys. 2024 Dec.

Abstract

Thyroid cancer, as one of the most common cancers in many countries, has attracted increasing attention, but its pathogenesis is still unclear. This research explored the effects of miR-144-3p and GABRB2 on thyroid cancer cells and the underlying mechanism. Gene expression data was obtained from the GEO database to analyze differential expression of mRNAs and miRNAs in patients with thyroid cancer. CCK-8, transwell, scratch, and flow cytometry assays were performed to detect cell proliferation, invasion, migration, and apoptosis, respectively. Dual-luciferase reporters were used to detect the binding of miR-144-3p to GABRB2. GABRB2 was highly expressed and miR-144-3p was underexpressed in thyroid cancer. In thyroid cancer cells, inhibiting GABRB2 or upregulating miR-144-3p reduced proliferation, invasion, and migration and increased apoptotic rates; GABRB2 overexpression or miR-144-3p inhibition brought about the opposite results. miR-144-3p targeted GABRB2 and negatively regulated its expression. PI3K/AKT activation was reduced in thyroid cancer cells overexpressing miR-144-3p. GABRB2 overexpression partially mitigated the tumor-suppressive effect of miR-144-3p overexpression. In conclusion, miR-144-3p targets GABRB2 to inhibit PI3K/AKT activation, thereby inhibiting the progression of thyroid cancer in vitro.

Keywords: GABRB2; PI3K/AKT signaling pathway; Thyroid cancer; miR-144-3p.

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Conflict of interest statement

Compliance with Ethical Standards Conflict of interest The authors declare no competing interests.

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