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MRI lytic and no lytic lesions

ABSTRACT: This series represents samples of multiple myeloma patients with and without bone lytic lesion by MRI. Keywords = multiple myeloma Keywords = osteolytic lesions Keywords = MRI Keywords = osteoblast Keywords = mesenchymal stem cell Keywords = Wnt signaling Keywords = DKK1 Keywords: other

ORGANISM(S): Homo sapiens

PROVIDER: GSE755 | GEO | 2004/01/01

SECONDARY ACCESSION(S): PRJNA87703

REPOSITORIES: GEO

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MRI-lytic-lesion

Project description:This series represents samples of multiple myeloma patients with bone lytic lesion by MRI. Keywords = multiple myeloma Keywords = osteolytic lesions Keywords = MRI Keywords = osteoblast Keywords = mesenchymal stem cell Keywords = Wnt signaling Keywords = DKK1 Keywords: other

2004-01-01 | GSE754 | GEO

MRI-no-lytic-lesion

Project description:This series represents samples of multiple myeloma patients without bone lytic lesion by MRI. Keywords = multiple myeloma Keywords = osteolytic lesions Keywords = MRI Keywords = osteoblast Keywords = mesenchymal stem cell Keywords = Wnt signaling Keywords = DKK1 Keywords: other

2004-01-01 | GSE753 | GEO

Transcription profiling of human samples of multiple myeloma patients with and without bone lytic lesion by MRI

Project description:This series represents samples of multiple myeloma patients with and without bone lytic lesion by MRI.

2007-09-25 | E-GEOD-755 | biostudies-arrayexpress

Osteocyte CIITA Aggravates Osteolytic Bone Lesions in Myeloma

Project description:Osteolytic destruction is a hallmark of multiple myeloma, resulting from activation of osteoclast mediated bone resorption and reduction of osteoblast-mediated bone formation. However, the molecular mechanism underlying the differentiation and activity of osteoclasts and osteoblasts within a myelomatous microenvironment remains unclear. Here, we demonstrate that the osteocyte-expressed major histocompatibility complex class II transactivator (CIITA) contributes to myeloma-induced bone lesions. CIITA upregulates the secretion of osteolytic cytokines from osteocytes through acetylation at histone 3 lysine 14 in the promoter of TNFSF11 (encoding RANKL) and SOST (encoding sclerostin), leading to enhanced osteoclastogenesis and decreased osteoblastogenesis. In turn, myeloma cell–secreted 2-deoxy-D-ribose, the product of thymidine catalyzed by the function of thymidine phosphorylase, upregulates CIITA expression in osteocytes through the STAT1/IRF1 signaling pathway. Our work thus broadens the understanding of myeloma-induced osteolysis and indicates a potential strategy for disrupting tumor-osteocyte interaction to prevent, or treat patients with, myeloma bone disease.

2022-04-23 | GSE200987 | GEO

Osteocyte CIITA Aggravates Osteolytic Bone Lesions in Myeloma

Project description:Osteocyte CIITA Aggravates Osteolytic Bone Lesions in Myeloma

| PRJNA827810 | ENA

Homo sapiens

Project description:MRI-lytic-lesion

| PRJNA87701 | ENA

Homo sapiens

Project description:MRI lytic and no lytic lesions

| PRJNA87703 | ENA

Homo sapiens

Project description:MRI-no-lytic-lesion

| PRJNA87699 | ENA

MRI-informed muscle biopsies correlate MRI with pathology and DUX4 target gene expression in FSHD

Project description:Facioscapulohumeral muscular dystrophy (FSHD) is a common, dominantly inherited disease caused by the epigenetic de-repression of the DUX4 gene, a transcription factor normally repressed in somatic cells. As targeted therapies are now possible in FSHD, a better understanding of the relationship between DUX4 activity, muscle pathology and muscle MRI changes are crucial both to understand disease mechanisms and for the design of future clinical trials. Here, we performed MRIs of the lower extremities in 36 individuals with FSHD, followed by needle muscle biopsies in safely accessible muscles. We examined the correlation between MRI characteristics, muscle pathology, and expression of DUX4 target genes. Results show that the presence of elevated MRI STIR signal has substantial predictive value in identifying muscles with active disease and DUX4 target gene expression. In addition, DUX4 target gene expression was detected only in FSHD-affected muscles and not in control muscles, and higher levels of DUX4 target expression was associated with more advanced muscle pathology. These results support the use of MRI to identify FSHD muscles with active disease as measured by histopathology and DUX4 target gene expression and might be useful for the design of studies of disease progression and response to intervention.

2018-09-04 | GSE115650 | GEO

Data in support of Temporal changes of inflammation and endothelial dysfunction in multiple sclerosis related to the evolution of enhancing lesions on frequent brain MRI

Project description:Blood-brain-barrier (BBB) breakdown and active inflammation by relapsing–remitting (RRMS) lesions are hallmarks of multiple sclerosis (MS). Leaky endothelial junctions causes an increased expression of circulating immune cells with associated adhesion molecules on endothelial cell membrane but also an increased production of endothelial derived extracellular microvesicles (EV). Methods: Relapsing–remitting MS (RRMS) patients with no disease-modifying treatment were monitored with weekly intervals using high-resolution 3T MRI scanning. Plasma samples from each measurement were analyzed for protein biomarkers of inflammation by quantitative proteomics, cytokines and chemokines using multiplex immunoassay. Extracellular microvesicles were characterized by an optimized endothelial stress EV Array analysis for detection of soluble secreted microvesicles.

2024-01-26 | PXD035422 | Pride

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