Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Identification of early response genes to low-intensity pulsed ultrasound in bone marrow stromal cells

ABSTRACT: Identification of early response genes to low-intensity pulsed ultrasound in bone marrow stromal cells

PROVIDER: PRJNA560688 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Similar Datasets

Identification of early response genes to low-intensity pulsed ultrasound in bone marrow stromal cells

Project description:Low-intensity pulsed ultrasound (LIPUS) has been applied as a therapeutic adjunct to promote fracture healing. However, the detailed molecular mechanisms by which LIPUS promotes bone fracture healing have not yet been fully elucidated. In the present study, the early response genes elicited by low-intensity pulsed ultrasound (LIPUS) in bone marrow stromal cells (BMSCs) were investigated using GeneChip® oligonucleotide microarrays.

2019-08-19 | GSE135935 | GEO

Gene expression in response to low-intensity pulsed ultrasound treatment of bone marrow cells under osteogenic conditions in vitro

Project description:We performed a comprehensive analysis of gene expression changes following low-intensity pulsed ultrasound (LIPUS) treatment of cultured bone marrow cells under bone formation conditions, using cDNA microarray analysis Bone marrow cells were obtained from the femora of rats and were suspended in an osteogenic medium to make a cell culture. After cultures were established, test cultures were exposed to LIPUS via the base of the cell culture plates for 15 min/day on days 3–9 (LIPUS group). Control cultures (without LIPUS exposure) were otherwise treated identically to the LIPUS group. On day 10, total RNA was extracted from both sets of cultures and hybridized to microarray slides, the data sets were analysed. Markers for differentiated osteoblasts and osteocytes, as well as collagen-related genes, cell adhesion factors were up-regulated in LIPUS group on day 10.

2015-07-10 | GSE70662 | GEO

Gene expression in response to low-intensity pulsed ultrasound treatment of bone marrow cells under osteogenic conditions in vitro

2015-07-10 | E-GEOD-70662 | biostudies-arrayexpress

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

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

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

| PRJNA682601 | ENA

Low-intensity pulsed ultrasound-mediated blood-brain barrier opening increases anti programmed death-ligand 1 delivery and efficacy in Gl261 mouse model

Project description:Therapeutic antibodies targeting immune checkpoints have shown limited efficacy in clinical trials in glioblastoma (GBM) patients. Ultrasound-mediated blood-brain barrier opening (UMBO) using low-intensity pulsed ultrasound improved drug delivery to the brain. We explored the safety and the efficacy of UMBO plus immune checkpoint inhibitors in preclinical models of GBM. A Blood-brain barrier (BBB) opening was performed using a 1 MHz preclinical ultrasound system in combination with 10µl/g microbubbles. Brain penetration of immune checkpoint inhibitors was determined, and immune cell populations were evaluated using flow cytometry.The impact of repeated treatments on survival was determined. In syngeneic GL261-bearing immunocompetent mice, we showed that UMBO safely and repeatedly open the BBB. BBB opening was confirmed visually and microscopically using Evans’s blue dye and magnetic resonance imaging. UMBO plus anti-PDL-1 was associated with a significant improvement of the overall survival compared to anti-PD-L1 alone. Using mass spectroscopy, we showed that the penetration of therapeutic antibodies can be increased when delivered intravenously compared to non-sonicated brains. Furthermore, we observed an enhancement of activated microglia percentage when combined with anti-PD-L1. Here, we report that the combination of UMBO and anti-PD-L1 dramatically increases GL261-bearing mice's survival compared to their counterparts treated with anti-PD-L1 alone. Our study highlights the BBB as a limitation to overcome to increase the efficacy of anti-PD-L1 in GBM and supports clinical trials combining UMBO and in GBM patients.

2023-02-28 | GSE220909 | GEO

Synergistic Effect of Ultrasound and Wirelessly Powered Electrical Stimulation on Piezoelectric Membranes for Enhanced Osteogenesis by Immunomodulation of Macrophage Polarization

Project description:Effect of Low-intensity pulsed ultrasound (LIPUS) assisted BT/MWCNTs/Col (BMC) membrane on gene expression during immune response of macrophages (Raw 264.7).

2023-07-31 | GSE236912 | GEO

Transcription profiling of leukemia U937 cell line response to ultrasound

Project description:Here, the effects of non-thermal low intensity pulsed ultrasound (LIPUS) on the gene expression in human lymphoma U937 cells were investigated using by an Affymetrix GeneChip system. Six hours after LIPUS treatment (0.3 W/cm2 for 1 min), apoptosis (14Â±3.8%, meanÂ±SD) with minimal cell lysis was observed. At 3 h post-treatment, LIPUS down-regulated 193 genes and up-regulated 201 genes by >1.5-fold. Experiment Overall Design: U937 cells, a human lymphoma cell line, were treated with low intensity pulsed ultrasound (0.3 W/cm2 for 1 min) and followed by incubation for 3 h at 37Â°C. Non-treated cells were served as control. Total RNA samples were prepared from the cells. Gene expression was analyzed by an Affymetrix GeneChipÂ® system with Human Expression Array U133A which was spotted with 22,283 probe sets. Sample preparation for array hybridization was carried out as described in the manufactureâs instructions.

2008-06-11 | E-GEOD-10212 | biostudies-arrayexpress

Identification of genes responsive to ultrasound in human leukemia U937 cells

2008-01-23 | GSE10212 | GEO