Homo sapiens
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: PRJNA326397 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:The initiation and/or progression of ossification of the posterior longitudinal ligament (OPLL) is associated with cyclic tensile strain, but the pathomechanism of OPLL remains unclear. Indian hedgehog (Ihh) and its related signaling are key factors in normal enchondral ossification. However, the relation of OPLL to Ihh is unclear. The purpose of this study is to investigate the contribution of mechanical strain to OPLL and the relation of Ihh to OPLL. Cultured posterior longitudinal ligament cells were subjected to 24 hours of cyclic tensile strain and then analyzed by microarray.
2016-06-22 | E-GEOD-83569 | ArrayExpress
Project description:Ossification of the posterior longitudinal ligament (OPLL) is formed by heterogeneous ossification of posterior longitudinal ligament. The patho-mechanism of OPLL is still largely unknown. MicroRNAs are small nucleatides that function as regulators of gene expression in almost any biological process. However, few microRNAs are reported to have a role in the pathological process of OPLL. Therefore, we performed high-throughput microRNA sequencing and transcriptome sequencing of primary OPLL and PLL cells in order to decipher the interacting network of microRNAs in OPLL. MRNA and microRNA profiles were done using primary culture cells of human ossification of the posterior longitudinal ligament (OPLL) tissue and normal posterior longitudinal ligament (PLL) tissue.
2016-04-04 | E-GEOD-69787 | ArrayExpress
Project description:Ossification of the posterior longitudinal ligament (OPLL) of the spine is characterized by progressive ectopic bone formation in the spinal ligament. To identify the genes related to ectopic ossification of human spinal ligament affected by mechanical stress, analyses using cDNA microarray were carried out using cultured human spinal ligament cells that had been subjected to uniaxial cyclic stretching. cDNA microarrays revealed that ranges of distribution of both up- and down-regulated genes evoked by cyclic stretching were significantly wider in cells from than in non-OPLL cells. Keywords: mechanical-stress response Overall design: Cells were cultured in deformable silicon chamber which were exposed to cyclic stretching (120% extension ratio) for up to 9 hr. After cyclic stretching, total RNA was extracted from each cell monolayer. Target cDNAs transcribed from non-stretched control cells and stretched cells were labeled with Cy3 and Cy5, respectively, and then hybridized with an Agilent Human 1 cDNA Microarray. The microarrays were scanned in both the Cy3 and Cy5 channels with an Affymetrix 428 Array Scanner, and then analyzed using the ImaGene and GeneSight-Lite Software packages.
2006-08-09 | GSE5464 | GEO
Project description:Ossification of the posterior longitudinal ligament (OPLL) is formed by heterogeneous ossification of posterior longitudinal ligament. The patho-mechanism of OPLL is still largely unknown. Recently, disorders of metabolism are thought to be the center of many diseases such as OPLL. Advanced glycation end product (AGE) are accumulated in many extracellular matrixes such as ligament fibers, and it can functions as cellular signal through its receptor (RAGE), contributing to various events such as atherosclerosis or oxidative stress. However, its role in OPLL formation is not yet known. Therefore, we performed high-through-put RNA sequencing on primary posterior longitudinal ligament cells treated with different doses of AGEs (1µM, 5µM and negative control), with or without BMP2 (1µM). mRNA profiles of Primary human posterior longitudinal ligament cells stimulated with various stimuli (Control, 1µM AGE-BSA, 5µM AGE-BSA, 1µM AGE-BSA with BMP2, 5µM AGE-BSA with BMP2) were generated by deep sequencing on Ion Proton
2016-02-16 | E-GEOD-65952 | ArrayExpress
Project description:This study describes the discovery of the gene responsible for differentiation of stem cells into ligament tissue. This important finding may lead to the development of treatments for gonarthrosis, rupture of the cruciate ligament and periodontal ligament, and ossification of the posterior longitudinal ligament. This study describes the discovery of the gene (A) responsible for differentiation of stem cells into ligament tissue. The transfection of this gene into mouse mesenchymal stem cells resulted in the formation of ligament-like connective tissue composed of parallel fibres. We performed microarray analysis of four samples: stem cells (sample1), ligament-like tissue from stem cells transfected with A (sample 4), ligament tissue from A-transgenic mice (sample 2) , and ligament tissue from wild type mice (sample 3).
2013-03-31 | E-GEOD-35269 | ArrayExpress
Project description:Proteomics analysis was conducted using sera from 31 OPLL patients and 17 healthy individuals, detecting a significantly defective protein in the former as compared with the latter. The continuous and mixed types of OPLL were compared, demonstrating a lower level of the protein in the former than the latter. Clinically, the continuous type, i.e., the ossification of the entire longitudinal ligament, was frequently detected in severe cases. Overall design: The micro-RNA analysis of a healthy and a patient of OPLL of tissue and blood.
| GSE57592 | GEO
Project description:The morphogen Indian Hedgehog plays a very important role during intestinal embryogenesis, but also maintains homeostasis of the adult gut. Intestinal Indian Hedgehog is expressed by the intestinal epithelium and signals in paracrine manner to fibroblasts in the stromal compartment. Unresolved deletion of Ihh from the intestinal epithelium leads to a severe enterocolitis. We studied the short term changes in the colon upon deletion of Ihh from the epithelial layer. Overall design: By using VillinCreERT2-IHH fl/fl mice we specifically deleted Indian Hedgehog from the intestinal epithelium (Villin is expressed by the intestinal epithelial layer). 7 days after the start of induction with tamoxifen colons were isolated.
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Project description:Ossification of the ligamentum flava (OLF) is a common spinal disorder among the elderly that causes myelopathy and radiculopathy. Although studies have identified several genes that correlated with OLF, the underlying regulation network is far from clear. To identify transcriptional regulators for OLF, we compared the circRNAs expression of the ligamentum flava tissues from OLF patients and healthy volunteers through microarray analysis, which revealed a panel of circRNAs that were specifically regulated in ligament tissues of human undergoing ossification. To identify transcriptional regulators for OLF, we compared the circRNAs expression of the ligamentum flava tissues from OLF patients and healthy volunteers through microarray analysis. Overall design: The circRNA expression profile of 4 OLFs and 4 normal LF tissues were analyzed by microarray analysis.
| GSE106255 | GEO
Project description:Ossification of the ligamentum flava (OLF) is a common spinal disorder among the elderly that causes myelopathy and radiculopathy. Although studies have identified several genes that correlated with OLF, the underlying regulation network is far from clear. To identify transcriptional regulators for OLF, we compared the lncRNAs and mRNAs expression of the ligamentum flava tissues from OLF patients and healthy volunteers through microarray analysis, which revealed a panel of lncRNAs and mRNAs that were specifically regulated in ligament tissues of human undergoing ossification. To identify transcriptional regulators for OLF, we compared the lncRNAs and mRNAs expression of the ligamentum flava tissues from OLF patients and healthy volunteers through microarray analysis. Overall design: The lncRNA and mRNA expression profile of 4 OLFs and 4 normal LF tissues were analyzed by microarray analysis.
| GSE106253 | GEO
Project description:The morphogen Indian Hedgehog plays a very important role during intestinal embryogenesis, but also maintains homeostasis in the adult gut. Intestinal Hedgehog is expressed by the intestinal epithelium and signals in paracrine manner to fibroblasts in the stromal compartment. We studied the colonic changes upon activation of the Hedgehog pathway by deleting the Hedgehog receptor Patched1 in order to alleviate its repressive function. Overall design: By using Rosa26CreERT2-Ptch1 fl/fl mice we deleted exon 8 and 9 of the Patched1 receptor in a body-wide fashion to activate the Hedgehog pathway. 12 days after the start of the induction with tamoxifen, colons were isolated.
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