Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Osteoblast and Osteocyte Profiles at Different Cell-cummunication Status

ABSTRACT: Type of Experiment: 1) Profiles of Osteoblast vs. osteocyte in vitro; 2) Profiles of osteoblast low density vs. confluency in vitro; 3) Profiles of osteocyte with gap junction vs. without gap junction. Experimental factors: 1) 2T3 osteoblast cells at low density expressed extensive filopodia, reminiscent of early osteoblast precursors and similar to MLO-Y4 dendritic processes. 2) MLO-Y4 osteocytes at low vs. high density represent the genes that are changed in a highly connected network vs. low connected network. The number of hybridizations performed: Triplicate hybridizations for each status. Keywords = Osteoblast Keywords = Osteocyte

ORGANISM(S): Mus musculus

SUBMITTER: Lynda Bonewald

PROVIDER: E-GEOD-2234 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Osteoblast and Osteocyte Profiles at Different Cell-cummunication Status

Project description:Type of Experiment: 1) Profiles of Osteoblast vs. osteocyte in vitro; 2) Profiles of osteoblast low density vs. confluency in vitro; 3) Profiles of osteocyte with gap junction vs. without gap junction. Experimental factors: 1) 2T3 osteoblast cells at low density expressed extensive filopodia, reminiscent of early osteoblast precursors and similar to MLO-Y4 dendritic processes. 2) MLO-Y4 osteocytes at low vs. high density represent the genes that are changed in a highly connected network vs. low connected network. The number of hybridizations performed: Triplicate hybridizations for each status. Keywords = Osteoblast Keywords = Osteocyte Keywords: parallel sample

2005-06-05 | GSE2234 | GEO

Transcription profiling by array of mouse osteocyte MLO-Y4 cells treated with low doses of the nitrogen-containing bisphosphonates alendronate and risedronate

Project description:Differential Gene expression analysis was conducted in order to study the effect of low doses of Alendronate and Risedronate on osteocyte MLO-Y4 cells. Alendronate and Risedronate are Nitrogen-containing Bisphosphonates (N-BPs), compounds used to treat excessive bone resorption, and low doses of N-BPs were demonstrated to exert a potent pro-survival effect on osteocytes.

2009-02-15 | E-MEXP-1470 | biostudies-arrayexpress

Effect of osteocytes mitochondria on OA chondrocytes

Project description:To investigate the regulatory role of MLO-Y4 mitochondria on OA chondrocytes, we isolated mitochondria from MLO-Y4 and transplanted to chondrocytes treated with IL-1β. We then performed gene expression profiling analysis using data obtained from RNA-seq of chondrocytes from vehicle group and mitochondria transplanted group.

2024-12-01 | GSE219238 | GEO

The effects of mitochondrial damages under stress or during aging on osteocytes networks homeostasis

Project description:Using oligomycin A-treated MLO-Y4 cells and primary murine aging osteocytes as a model of cells with mitochondrial dysfunction, it is demonstrated that when mitochondria are damaged, osteocytes tend to release signaling compounds including adenosine diphosphate. We identified that the nucleotide membrane receptors P2Y2 and P2Y6 transduced the ADP signal to Mfn2, a critical regulator of osteocyte mitochondrial transfer. Whole RNA sequencing (RNA-seq) analysis of mouse cortical bone showed that mitochondrial metabolism is impaired in aged osteocytes, and there are more extracellular nucleotides released into the matrix in cortical bone in aged mice as compared to that in young mice. Aging decreases expression levels of P2Y2/P2Y6 and Mfn2.

2024-01-24 | GSE235103 | GEO

Whole gene expression data from osteocyte-like cell line MLO-Y4 under large gradient high magnetic field (LG-HMF)

Project description:osteocyte is the mechanosensor in bone, taking up pivotal position in mediating the mechano-induced bone remodeling. Dimagnetic levitation has been used to stimulating a reduced gravity environment for studing the effects of changed gravity to different organisms.we constructed a superconducting magnet based platform with a large gradient high magnetic field(LG-HMF),which can provide three apparent gravity levels (?-g,1-g and 2-g). osteocytes are sensetive to gravitational changes, our aim is to explore what responses do osteocytes exists under different gravitational environments in gene level, together with filtering the up- and down-regulated genes. mouse osteocyte-like cell line MLO-Y4 were cultured under three different apparent gravity levels (?-g,1-g and 2-g) and normal gravity environment (control) for 48 hours, after which total RNA was extracted . And then RNA samples hybridized on affymetrix microarrays to obtain the whole genome expression profiles. the aim that we selected 48 hours as the cell culture time was to make a comparison with our previous researches of osteocytes.

2015-02-02 | E-GEOD-62128 | biostudies-arrayexpress

Blockage of hemichannels alters gene expression in osteocytes in a high magneto-gravitational environment

Project description:We tested how Cx43 hemichannels which mediate the exchange of small molecules between cells and extracellular environment impact genome wide gene expression under conditions of abnormal gravity and magnetic field. we subjected osteocytic MLO-Y4 cells to a high magneto-gravitational environment and used microarray to examine global gene expression and a specific blocking antibody was used to assess the role of Cx43 hemichannels. Microarray analysis was conducted to identify the alterations of global gene expression profile of osteocytic MLO-Y4 cells under HMGE. Furthermore, the effects of Cx43 hemichannels on gene expression were investigated by using a potent, Cx43 hemichannel-blocking antibody Cx43(E2)

2016-08-24 | E-GEOD-85968 | biostudies-arrayexpress

BIGH3-induced Osteocyte Apoptosis and Gap Junction Failure Foster Osteolysis in Clear Cell Renal Cell Carcinoma (ccRCC) Bone Metastasis

Project description:Metastatic progression in bone involves crosstalk between tumor cells and osteoblasts, osteoclasts, and osteocytes. Renal cell carcinoma bone metastases (RCCBM) are predominantly osteolytic and often treatment resistant. We previously reported that inhibition of osteoblast differentiation by BIGH3 (transforming growth factor-beta-induced protein ig-h3) secreted by colonizing 786-O RCC cells promotes tumor progression in bone. Here we report that BIGH3 induces osteocyte apoptosis in both human specimens and mice and inhibits gap junction (GJ) protein Cx43 expression and function, disrupting bone homeostasis. As proof-of-concept, lysosomal inhibitors, such as hydroxychloroquine (HCQ) and NH4Cl, reversed BIGH3-mediated GJ dysfunction in vitro; and inhibited tumor growth and reversed Bo-786 RCC-induced osteolysis in vivo. HCQ in combination with CBZ, but not alone, reversed the RCCBM-mediated decreases in bone mineral density and osteoblast numbers, and decreased osteocyte apoptosis and osteoclast recruitment. These BIGH3 associated impacts on the bone microenvironment comprise a noncanonical mechanism of metastasis progression.

2024-09-18 | GSE244453 | GEO

Osteocytes as main responders to Low Intensity Pulsed Ultrasound for the treatment of fracture healing

Project description:Skeletal tissue is known to respond to mechanical stress. Ultrasound stimulation is one of mechanical stress and low intensity pulsed ultrasound (LIPUS) devices have been clinically utilized to promote the fracture healing. However, it is still not clear which skeletal cells, especially osteocytes or osteoblasts, mainly respond to LIPUS stimulation and how they contribute to fracture healing. To examine that, we utilized medaka known to have bones without embedded osteocytes and zebrafish known to have bones with embedded osteocytes as an in vivo model. Interestingly, fracture healing was accelerated by ultrasound stimulation in zebrafish but not in medaka. To examine the molecular events induced by LIPUS stimulation in osteocyte, we performed RNA-sequencing with the murine long bone osteocyte Y4 (MLO-Y4) cell line exposed to LIPUS. 179 genes reacted to LIPUS stimulation and functional cluster analysis defined that several molecular signatures related in immunity, secretion and transcription. Especially, most of isolated transcription related genes were modulated by LIPUS also in vivo experiments using zebrafish. Target genes analysis showed that inflammatory response and bone formation in fracture healing could be transcriptionally regulated in osteocytes by LIPUS stimulation. Among these transcription genes, early growth response (Egr) 1,2, JunB, Forkhead box Q1 (FoxQ1) and nuclear factor of activated T cells (NFAT) c1 were not altered by LIPUS in medaka unlike zebrafish suggesting that these genes would be key transcriptional regulator of LIPUS-dependent fracture healing through osteocytes. In this study, we revealed bone-equipped osteocytes is necessary for LIPUS-induced promotion of fracture healing through the transcriptional control of target genes presumably to activate neighboring cells involved in fracture healing event.

2021-05-03 | GSE162674 | GEO

mouse RPE/choroid age comparison - ATLAS arrays

Project description:Young mice were compared to old mice (2 month vs 24 month) to determine gene changes that occur with aging in the mouse retinal pigmented epithelium/choroid of the eye. Keywords = retinal pigmented epithelium Keywords = aging Keywords = choroid

2010-06-05 | E-GEOD-565 | biostudies-arrayexpress

Mechanical loading influences osteocytes and further regulates osteoblast metabolism and osteogenic differentiation(miRNA Array)

Project description:A previous study indicated that mechanical tensile strain of 2500 microstrain (με) at 0.5 Hz for 8 h promoted osteogenesis and corresponding mechanoresponsive microRNAs (miRs) were identified in osteoblasts. However, in osteocytes, it has not been identified which miRs respond to the mechanical strain, and it is not fully understood how the mechanoresponsive miRs regulate osteoblast differentiation. Mouse MLO-Y4 osteocytes were applied to the same mechanical tensile strain in vitro.MiR microarray and reverse transcription-quantitative polymerase chainreaction(RT-qPCR) assays were applied to select and validate differentially expressed miRs, and the target genes of these miRs were then predicted. In addition, the differentially expressed miRNAs in mechanically strained osteocytes in vitro were compared with those in treadmill exercise of the bone tissues .

2021-07-02 | GSE179199 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data