Project description:We observed that follicular dendritic cell line induced a new type of CD11b+ myeloid cells (FDMCs) when cultured with a lineage-negative c-kit+ population from mouse spleen cells. Thus, we used microarrays to characterize gene expression of FDMCs. FDMCs were induced on FDC line for RNA extraction and hybridization on Affymetrix microarrays. Microarray data of "FDC-induced myeloid cells (FDMCs)" sample were combined with a large collection of other cell- and tissue-specific gene expression data sets (total: 205 individual data sets). Raw data (.cel) files were normalized using Robust Multichip Analysis (RMA Express; http://rmaexpress.bmbolstad.com/), annotated using the latest libraries available from Affymetrix, and arranged according to cell-type grouping.
Project description:Previous research has reported that FDC-SP had similar molecular properties to statherin, a protein exists in saliva which plays important roles in preventing Ca precipitation. Further biomolecular study has suggested that the expression of FDC-SP may be associated with periodontal ligament (PDL) phenotype expression. Therefore, we hypothesized that FDC-SP may play specific roles in the inhibition of calcium precipitation during periodontal regeneration, as well as affect phenotype expression of periodontal ligament cells (PDLCs) during the differentiation process. To investigate this, we applied microarray technology to identify gene expression changes in hPDLCs transfected with FDC-SP and then clustered them according to their biological functions.
Project description:Previous research has reported that FDC-SP had similar molecular properties to statherin, a protein exists in saliva which plays important roles in preventing Ca precipitation. Further biomolecular study has suggested that the expression of FDC-SP may be associated with periodontal ligament (PDL) phenotype expression. Therefore, we hypothesized that FDC-SP may play specific roles in the inhibition of calcium precipitation during periodontal regeneration, as well as affect phenotype expression of periodontal ligament cells (PDLCs) during the differentiation process. To investigate this, we applied microarray technology to identify gene expression changes in hPDLCs transfected with FDC-SP and then clustered them according to their biological functions. We firstly established a recombinant lentiviral vector containing FDC-SP and obtained safe and efficient FDC-SP overexpression in human periodontal ligament cells (hPDLCs). After that, we applied Agilent Whole Human Genome Oligo Microarray (4M-CM-^W44K) to identify differentially expressed genes between empty vector-transfected hPDLCs and FDC-SP -transfected ones and then clustered them according to their biological functions. 3 independent experiments were performed and the empty vector-transfected hPDLCs were used as control.
Project description:Osteoblasts derived from different functional skeletal sites were analysed for gene expression profiles Keywords: Cell type comparison
Project description:Cells from 2 FL patients and 1 FL cell line were cultured for up to 48h, with no stroma or on top of HK cells pre-establised layers. RNA from FL cells was isolated after 24 and 48h of culture The aim of this study was to uncover the molecular mechanisms underlying the FL-FDC crosstalk Global RNA expression in FL cells that have been in contact or not with the FDC cell line HK