ArticleDiscover oncology2025
Exploring miR-301a-3p and osteosarcoma: from expression differences to mechanism of action.
Article in Discover oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesThe pathogenesis of osteosarcoma remains inadequately understood. This study aims to investigate the role and underlying mechanisms of miR-301a-3p in osteosarcoma progression, providing a scientific basis for the development of effective therapeutic strategies.
methodsOsteosarcoma tissues and cells were collected and miR-301a-3p expression was detected by qRT-PCR and assessed the correlation between miR-301a-3p expression and clinical disease and prognosis of osteosarcoma patients. The effects of miR-301a-3p overexpression on osteosarcoma cells were investigated by Transwell assay and CCK-8 assay. The targeting relationship between miR-301a-3p and MAFB was detected by dual luciferase reporter assay.
resultsmiR-301a-3p was significantly downregulated in osteosarcoma. Significant differences in TNM staging and lung metastasis were observed between the high and low miR-301a-3p expression groups, with a higher mortality rate in the low expression group, indicating it as a risk factor for poor prognosis. Upregulation of miR-301a-3p inhibited the proliferation and metastasis of osteosarcoma cells. MAFB was identified as a target gene of miR-301a-3p, capable of reversing the inhibitory effects of miR-301a-3p on cancer cells.
conclusionsLow expression of miR-301a-3p may serve as a warning sign for disease progression and poor prognosis in osteosarcoma patients. miR-301a-3p may inhibit malignant behaviors of osteosarcoma cells by targeting MAFB. Future studies could explore the integration of ultrasound-targeted microbubble destruction technology to enhance the targeted delivery of miR-301a-3p mimics or MAFB inhibitors, potentially overcoming limitations in drug penetration and bioavailability observed in conventional therapies.
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