Project description:We selected three neonicotinoids and nicotine to expose the hBMSCs We obtained the gene expression which can help us identify the potential toxic effects of NEOs on human body
Project description:Nanotopographic cues from biomaterials exert powerful effects on the osteogenic differentiation of mesenchymal stem cells because of their niche-mimicking features. However, the biological mechanisms underlying cell lineage determination by surface nanotopography have not been clearly elucidated. Here, we explored the osteogenic behavior of human bone marrow mesenchymal stem cells (hBMSCs) on PLLA nanofibers with different orientations, and monitored the dynamic changes in global gene expression triggered by topographical cues. The global gene expression of hBMSCs cultured on random and aligned nanofibers and induced with osteogenic supplement (OS) were analysed using microarray company with control at 4, 7, 14 and 21 days.
Project description:In this study, we performed the high-throughput sequencing of hBMSCs between day 0 and day 21 during induction of osteogenic differentiation, followed by analysis of the different expression in whole transcriptomes.
Project description:In our previous study, we found that TNF-alpha (100ng/mL) different treatment times have opposing effects on BMSC osteogenesis. To investigate the roles of TNF-alpha in the osteogenic differentiation of hBMSCs, we performed gene microarray to detected the gene expression of hBMSCs with or without TNF-alpha during osteogenesis on days 3 and 4.
Project description:Nanotopographic cues from biomaterials exert powerful effects on the osteogenic differentiation of mesenchymal stem cells because of their niche-mimicking features. However, the biological mechanisms underlying cell lineage determination by surface nanotopography have not been clearly elucidated. Here, we explored the osteogenic behavior of human bone marrow mesenchymal stem cells (hBMSCs) on PLLA nanofibers with different orientations, and monitored the dynamic changes in global gene expression triggered by topographical cues.
Project description:The pathogenesis of osteoporosis is closely related to the impaired human bone marrow-derived stromal cells (hBMSCs) osteogenic differentiation. No studies to date, however, have established whether tRNA-derived fragments (tRFs) can influence osteogenic differentiation of hBMSCs or the onset of osteoporosis. Here, tRF-23 was found to control hBMSC osteogenesis through its ability to target suppressor of cytokine signaling 1 (SOCS1) via the Janus kinase 2/signal transducer and activator of transcription 3(JAK2/STAT3) signaling pathway. tRF-23 was then further established as a potential target for efforts to protect against bone loss and marrow adipose tissue (MAT) accumulation in osteoporotic model mice, and its molecular mechanism was also verified in vivo. Together, these results suggest a model in which tRF-23 can protect against bone loss induced by ovariectomized (OVX) through the augmentation of hBMSC osteogenesis, providing a foundation for further characterizing the pathogenesis of osteoporosis and seeking new therapeutic targets for this disruptive condition.
Project description:The primary objective of this prospective observational study is to characterize the gut and oral microbiome as well as the whole blood transcriptome in gastrointestinal cancer patients and correlate these findings with cancer type, treatment efficacy and toxicity. Participants will be recruited from existing clinical sites only, no additional clinical sites are needed.
Project description:Data files associated with the manuscript titled "Development of MDM2-targeting PROTAC for Advancing Bone Regeneration," which is currently under review. This manuscript introduces MDM2-targeting PROTACs customized for application in bone regeneration. We developed MDM2-PROTACs (CL144) that demonstrated potent degradation efficiency and a strong inductive effect on biomineralization. Proteomics analysis was performed on human bone marrow-derived mesenchymal stem cells (hBMSCs) to investigate the degradation selectivity of the compound. Through proteomics database searches, we identified 6,388 proteins, including several differentially expressed proteins (DEPs), many of which are known to interact with MDM2 or play significant roles in the ubiquitin-proteasome system.
Project description:To investigated the role of all-trans retinoic acid (ATRA) in protein expression profiling during human bone mesenchymal stem cells (hBMSCs) adipogenesis. Liquid chromatography tandem mass spectrometry(LC-MS/MS) was used to determine the protein profile,and raw data were analyzed against the UniProt database using MaxQuant with the Andromeda search engine.
