The effect of ketorolac and triamcinolone acetonide on adipogenic and hepatogenic differentiation through miRNAs 16/15/195: Possible clinical application in regenerative medicine.

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

The role of miR-16/15b/195 and complementary compounds in the commitment of mesenchymal stem cells (MSCs) to different lineages is unknown. The aim of this work was to investigate the effect of ketorolac and triamcinolone acetonide on adipogenic and hepatogenic processes, respectively. Also, miR-16/15 and miR-195 expression levels were evaluated under different induction conditions. MSCs were isolated, expanded and directed using adipogenesis medium or medium supplemented with ketorolac, and also subjected to hepatogenic differentiation using a cocktail of hepatocyte growth factor (HGF) and Oncostatin M (OSM) either with or without triamcinolone acetonide. Periodic acid-Schiff (PAS) staining, Oil red O staining, albumin and adiponectin protein secretion were evaluated. MiR-16 family expression level was assessed using qRT-PCR in four induced groups as compared to non-induced cells. The expression levels of miR-16 and miR-15 increased significantly from adipose derived stem cells to adipocytes (p<0.01). Positive stimulatory effects of ketorolac and triamcinolone on adipogenic and hepatogenic induction, respectively, were observed. Ketorolac stimulated upregulation of miR-16/15b in the adipogenic induced stem cells. Interestingly, triamcinolone caused upregulation of miR-15b and miR-195 in hepatic commitment. Two highly effective stimulators were identified. Ketorolac is similar

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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