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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Changes in the Bone Marrow Microenvironment Impact Anabolic Actions of PTH

ABSTRACT: Irradiation induced bone marrow ablation ultimately enhanced PTH anabolic effects in bone. B6 mice at 10 days of age were sub-lethally irradiated and treated with PTH 24h later for 5 days. 24h post last-injection, bone marrow was flushed with Trizol and RNA isolated and purified. Microarray analyses was performed to determine differential differences in PTH effects in non-irradiated vs. irradiated bone marrow. Triplicates of 4 groups (total of 12 samples) which include: Nonirradiated Vehicle, Nonirradiated PTH, Irradiated Vehicle and Irradiated PTH

ORGANISM(S): Mus musculus

SUBMITTER: Amy Koh

PROVIDER: E-GEOD-28819 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Changes in the Bone Marrow Microenvironment Impact Anabolic Actions of PTH

Project description:Irradiation induced bone marrow ablation ultimately enhanced PTH anabolic effects in bone. B6 mice at 10 days of age were sub-lethally irradiated and treated with PTH 24h later for 5 days. 24h post last-injection, bone marrow was flushed with Trizol and RNA isolated and purified. Microarray analyses was performed to determine differential differences in PTH effects in non-irradiated vs. irradiated bone marrow.

2011-09-30 | GSE28819 | GEO

Nfil3, a target of the NACA transcriptional coregulator, affects osteoblast and osteocyte gene expression differentially.

Project description:Purpose: Identify PTH-responsive genes in MC3T3-E1 cells. The aim of the study is to identify novel gene targets that are reugulated by PTH signaling in bone, elicting its anabolic effect in osteoblasts. Methods: mRNA expression profiles were compared between Vehicle and PTH(1-34)-treated MC3T3-1 cells, in triplicates, using Illumina HiSeq 2000 PE100 sequncing. qPCR using Taqman probes were used to validate genes of interest. Results: Sequence reads per sample were mapped to the mouse genome (mm10) and differential expression of each gene was determined. Genes that showed differential expression between Vehicle vs PTH(1-34)-treated samples and has a relevant function in bone were further characterized by knockdown strategies in MC3T3-E1 cells. Conclusion: Our study have identified a list of novel genes regulated by PTH siganling. The characterization of their transcription and function in osteoblasts and osteocytes added to our knowledge of PTH signaling in bone and other skeletal tissues.

2020-07-14 | GSE154355 | GEO

Mesenchymal Stem Cells (MSCs): Control vs. PTH-stimulated

Project description:Transcriptional profiling of human MSCs comparing control MSCs with parathyroid hormone (PTH)-stimulated MSCs. PTH-stimulated MSCs were treated with 0.1 nM recombinant human PTH (N-terminal fragment, amino acids 1-34) for 48 hours. Human MSCs were isolated from a bone marrow sample obtained from a healthy adult volunteer. Two-condition experiment: control MSCs vs. PTH-stimulated MSCs. 1 control MSCs and 1 PTH-stimulated MSCs.

2014-02-01 | E-GEOD-43148 | biostudies-arrayexpress

Gene expression in Wip1+/+ or -/- MEFs after gamma radiation

Project description:Assessment of p53 targets by gene expression array analysis in irradiated and nonirradiated Wip1+/+ and Wip1-/- MEFs. Keywords: response to gamma radiation

2007-08-08 | GSE8704 | GEO

Mesenchymal Stem Cells (MSCs): Control vs. PTH-stimulated

2014-02-01 | GSE43148 | GEO

Sensors, Pathways and Transcription factors regulating IR-induced inflammatory transcriptional output [RNA-seq data set 1]

Project description:Bone marrow-derived macrophages derived from C57Bl/6, Myd88-/- and Trif-/-, Ifnar-/-, Atm-/-, Sting-/-, Scid, Irf3-/-, Irf1-/-, p53-/-, Nrf2-/-mice were irradiated with 6Gray ioninzing radiation; C57Bl/6 macrophages were Irradiated in the presence of MAPK inhibitors or Reactive Oxygen Species Scavenger (N-Acetyl Cysteine), Two biological replicates were generated for each time point. RNA samples were collected at 0 (unirradiated), 0.5, 1, 2, 6, and 24h post irradiation except where ever mentioned.

2017-10-01 | GSE100961 | GEO

Sirolimus induced phosphaturia

Project description:Introduction: The kidney is the major arbiter of extracellular phosphate homeostasis. The vast majority of glomerular filtrated phosphate is reabsorbed in the proximal tubule. Posttransplant phosphaturia is common and aggravated by sirolimus immunosuppression. The cause of sirolimus induced phosphaturia however remains elusive. Results: The urine phosphate/creatinine ratio was higher and serum phosphate was lower in sirolimus treated rats, fractional excretion of phosphate was elevated and renal tubular phosphate reabsorption was reduced suggesting a renal cause for hypophosphatemia. PTH was lower in sirolimus treated rats. FGF 23 levels were unchanged at day 2 but lower in sirolimus treated rats after 7 days. Brush border membrane vesicle phosphate uptake was not altered in sirolimus treated groups or by direct incubation with sirolimus. mRNA, protein abundance, and subcellular transporter distribution of NaPi-IIa, Pit-2 and NHE3 were not different between groups but NaPi-IIc mRNA expression was lower at day 7. Transcriptome analyses revealed candidate genes that could be involved in the phosphaturic response. Discussion: Sirolimus caused a selective renal phosphate leakage which was not mediated by NaPi-IIa or NaPi-IIc regulation or localization. We hypothesize that another mechanism such as a basolateral phosphate transporter may be responsible for the sirolimus induced phosphaturia. Male Wistar rats received sirolimus or vehicle for 7 days (1.5mg/kg) and were placed in individual metabolic cages for eight days allowing a 24 hour adaption period to the metabolic cage environment. At the end of the experiments rats were anesthetized by inhalation of Isoflurane/air and blood samples and kidneys were collected. 4 cases (sirolimus) and 4 controls (vehicle) have been analysed

2012-09-24 | E-GEOD-35048 | biostudies-arrayexpress

Microarray analysis of gene expression in ATM-deficient MEFs

Project description:The expression of interferon-related genes was more enhanced in irradiated ATM-deficient mouse embryonic fibroblasts (MEFs) than in irradiated ATM wild-type MEFs. Nonirradiated-ATM-WT vs Irradiated-ATM-WT vs Nonirradaited-ATM-KO vs IrradiatedATM-KO

2012-06-19 | E-GEOD-23116 | biostudies-arrayexpress

Gene Expression of Bone Marrow Endothelial Cells under Radiated and Radioprotective Conditions

Project description:Bone Marrow Transplantation (BMT) depends greatly on transendothelial migration of stem cells from bloodstream to bone marrow. Therefore Bone Marrow Endothelial Cells (BMECs) becomes an essential component for successful BMT. Since BMT requires prior radiation therapy therefore it is necessary to study the behaviour of BMEC in irradiated and radiprotective conditions. We have conducted transcriptome profiling of Bone Marrow Endothelial Cells (BMECs) to identify the signalling mechanisms required for transendothelial migration to bone marrow under irradiated and radioprotected conditions.

2020-09-30 | GSE108722 | GEO

The functional interplay between the t(9;22)-associated fusion proteins BCR/ABL and ABL/BCR in Philadelphia chromosome positive acute lymphatic leukemia

Project description:p96ABL/BCR fusion protein plays an important role in the pathogenesis of Ph+ ALL Isolation of murine bone marrow stem cells, transduction of the cells with the desired construct, tranplantation of the cells into lethaly irradiated mice, isolation of RNA from the spleens 12 days after the transplantation, investigation of gene expression profile

2014-09-01 | E-GEOD-57515 | biostudies-arrayexpress

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