ArticleOncology letters2022
Head and neck squamous cancer cells enhance the differentiation of human mesenchymal stem cells to adipogenic and osteogenic linages
Article in Oncology letters, 2022. 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
Human mesenchymal stem cells (hMSC) are multipotent cells with the ability to differentiate into a range of different cell types, including fat, bone, cartilage or muscle. A pro-tumorigenic effect of hMSC has been previously reported as part of the tumor stroma. In addition, studies have previously revealed the influence of hematopoietic and lymphoid tumors on hMSC differentiation to support their own growth. However, this possible phenomenon has not been explored in solid malignancies. Therefore, the aim of the present study was to investigate the effects of head and neck squamous cell carcinoma (HNSCC) lines Cal27 and HLaC78 on the induction of osteogenic and adipogenic differentiation in hMSCs. Native hMSCs were co-cultured with Cal27 and HLaC78 cells for 3 weeks. Subsequently, hMSC differentiation was assessed using reverse transcription-PCR and using Oil Red O and von Kossa staining. Furthermore, the effects of differentiated hMSCs on Cal27 and HLaC78 were examined. For this purpose, hMSCs differentiated into the adipogenic (adipo-hMSC) and osteogenic (osteo-hMSC) lineages were co-cultured with Cal27 and HLaC78. Cell viability, cytokine secretion and activation of STAT3 signaling were measured by cell counting, dot blot assay (42 cytokines with focus on IL-6) and western blotting (STAT3, phosphorylated STAT3, β-actin), respectively. Co-culturing hMSCs with Cal27 and HLaC78 cells resulted in both adipogenic and osteogenic differentiation. In addition, the viability of Cal27 and HLaC78 cells was found to be increased after co-cultivation with adipo-hMSCs, compared with that of cells co-cultured with osteo-hMSC. According to western blotting results, Cal27 cells incubated with adipo-hMSCs exhibited increased STAT3 activation, compared with that in cells co-cultured with native hMSCs and osteo-hMSCs. IL-6 concentration in the media of Cal27 and HLaC78 after co-cultivation with respectively incubation with conditioned media of hMSCs, adipo-hMSCs and osteo-hMSCs were also found to be increased compared with that in the media of Cal27 and HLaC78 cells incubated with DMEM. To conclude, HNSCC cell lines Cal27 and HLaC78 induced hMSC differentiation towards the adipogenic and osteogenic lineages
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