Project description:Previous studies showed that bone marrow derived-mesenchymal stem cells (BMMSCs) from patients with systemic lupus erythematosus (SLE) and lupus animal models have deficiency in their capacities of proliferation, differentiation, secretion of cytokines and other functions. In this study, we aim to investigate the different gene patterns of BMMSCs between normal and SLE individuals using genome-scale DNA microarrays. We found that among all the genes investigated in microarray slides, a total of 1, 905 genes were differentially expressed by BMMSCs SLE patients, in which 652 genes were up-regulated and 1253 genes were down-regulated. Gene ontology analysis showed that the majority of these genes were related to cell cycle and protein binding. Pathway analysis showed that differentially regulated signal pathways involved actin cytoskeleton, focal adhesion, tight junction and TGF-β pathway. Our data suggested that there were differential gene expression patterns of BMMSCs between normal and SLE individuals, and further studies are needed to reveal the mechanisms for such differences. Bone marrow (BM) was obtained from 4 patients with SLE and 4 normal controls. BMMSCs were cultured and mRNA was extracted. Standard human reference RNA were purchased. Every slide: SLE or normal vs control, then SLE vs normals.
Project description:Patient-derived bone tumor (osteosarcoma and giant cell tumor of bone) cells, and the normal mesenchymal stem cells and osteoblasts were cultured and subjected to UV crosslinking (UV) at 254 nm or without crosslinking (noUV) as negative controls. Subsequently, RNA-binding proteins (RBPs) were identified by eRIC.
Project description:Previous studies showed that bone marrow derived-mesenchymal stem cells (BMMSCs) from patients with systemic lupus erythematosus (SLE) and lupus animal models have deficiency in their capacities of proliferation, differentiation, secretion of cytokines and other functions. In this study, we aim to investigate the different gene patterns of BMMSCs between normal and SLE individuals using genome-scale DNA microarrays. We found that among all the genes investigated in microarray slides, a total of 1, 905 genes were differentially expressed by BMMSCs SLE patients, in which 652 genes were up-regulated and 1253 genes were down-regulated. Gene ontology analysis showed that the majority of these genes were related to cell cycle and protein binding. Pathway analysis showed that differentially regulated signal pathways involved actin cytoskeleton, focal adhesion, tight junction and TGF-β pathway. Our data suggested that there were differential gene expression patterns of BMMSCs between normal and SLE individuals, and further studies are needed to reveal the mechanisms for such differences.
Project description:To investigate the lncRNAs expression profiling in CD4+ T cells of systemic lupus erythematosus (SLE) patients, we have employed “Agilent Human lncRNA 4*180K microarray” as a discovery platform to identify lncRNAs and mRNAs expression signatures in CD4+ T cells between SLE patients and normal controls. CD4+ T cells were isolated from peripheral blood mononuclear cells (PBMCs) of peripheral blood in SLE patients and normal controls, respectively.
Project description:Comparison of gene expression profiles in three samples of normal human atrial cardiac fibroblasts, normal human ventricular cardiac fibroblasts, normal human dermal fibroblasts, human bone marrow-derived mesenchymal stem cells and human iPS cell-derived fibroblasts using microarray analysis.
Project description:Mesenchymal stem cell transplantation (MSCT) has been widely used to treat a variety of human diseases. However, the detailed mechanisms underlying its success are not fully understood. Here we show that MSCT rescues recipient bone marrow mesenchymal stem cell (BMMSC) function in Fas-deficient-MRL/lpr systemic lupus erythematosus (SLE) mice via a miR-29b/Dnmt1/Notch epigenetic cascade. Using the microRNA microarray, we found that MSCT could rescue the high level of miR-29b in the recipient BMMSCs of MRL/lpr mice. In the present study, mesenchymal stem cell transplantation (MSCT) was used to treat MRL/lpr mice. One week after the treatment, normal control MSCs from C3H/HeJ mice (C3H), recipient MSCs from untreated MRL/lpr mice (LPR) and recipient MSCs from MSCT-treated MRL/lpr mice (MSC) were used for total RNA extraction and microRNA microarray for analysis of microRNA expressions.
Project description:Mesenchymal stem cell transplantation (MSCT) has been widely used to treat a variety of human diseases. However, the detailed mechanisms underlying its success are not fully understood. Here we show that MSCT rescues recipient bone marrow mesenchymal stem cell (BMMSC) function in Fas-deficient-MRL/lpr systemic lupus erythematosus (SLE) mice via rescuing their hypomethylated DNA profile. Using the methylation microarray, we found the global hypomethylation pattern in the recipient BMMSCs of MRL/lpr mice could be rescued by MSCT. In the present study, mesenchymal stem cell transplantation (MSCT) was used to treat MRL/lpr mice. One week after the treatment, normal control MSCs from C3H/HeJ mice (C3H), recipient MSCs from untreated MRL/lpr mice (LPR) and recipient MSCs from MSCT-treated MRL/lpr mice (MSC) were used for total DNA extraction and DNA methylation microarray for analysis of global genome methylation patterns.
Project description:Human adipose and bone marrow-derived mesenchymal stem cells were cultured either on collagenase biomaterial (CardioCel®) or normal tissue culture plastic over 48 hours in standard culture conditions, in serum-free medium.
Project description:Global gene expression data of human embryonic stem cell-, human induced pluripotent stem cell- and bone marrow-derived mesenchymal progenitor cells before and after culture onto osteoinductive scaffolds in perfusion bioreactors. The hypothesis tested in the present study was that perfusion culture in bioreactors influenced the expression levels of several genes involved in proliferation and osteogenic differentiation. Results provide important information of the response of human embryonic stem cell-, human induced pluripotent stem cell- and bone marrow-derived mesenchymal progenitor cell to osteogenic stimulation under perfusion cultures, such as genes involved in cell proliferation and division as well as osteogenic differentiation and bone development. Total RNA obtained from human embryonic stem cell-, human induced pluripotent stem cell- and bone marrow-derived mesenchymal progenitor cells before and after culture under osteogenic conditions in perfusion bioreactors for 5 weeks.
