Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Comparative therapeutic strategies for preventing aortic rupture in a mouse model of vascular Ehlers-Danlos syndrome

ABSTRACT: Vascular Ehlers-Danlos syndrome is a rare inherited disorder caused by genetic variants in type III collagen. Its prognosis is especially hampered by unpredictable arterial ruptures and there is no therapeutic consensus. We created a knock-in Col3a1+/G182R mouse model and performed a complete genetic, molecular and biochemical characterization. Several therapeutic strategies were also tested. Col3a1+/G182R mice showed a spontaneous mortality caused by thoracic aortic rupture that recapitulates the vascular Ehlers-Danlos syndrome with a lower survival rate in males, thin non-inflammatory arteries and an altered arterial collagen. Transcriptomic analysis of aortas showed upregulation of genes related to inflammation and cell stress response. Compared to water, survival rate of Col3a1+/G182R mice was not affected by beta-blockers (propranolol or celiprolol). Two other vasodilating anti-hypertensive agents (hydralazine, amlodipine) gave opposite results on aortic rupture and mortality rate. There was a spectacular beneficial effect of losartan, reversed by the cessation of its administration, and a marked deleterious effect of exogenous angiotensin II. These results suggest that blockade of the renin angiotensin system should be tested as a first-line medical therapy in patients with vascular Ehlers-Danlos syndrome.

ORGANISM(S): Mus musculus

PROVIDER: GSE196753 | GEO | 2022/02/16

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Comparative therapeutic strategies for preventing aortic rupture in a mouse model of vascular Ehlers-Danlos syndrome

Project description:Comparative therapeutic strategies for preventing aortic rupture in a mouse model of vascular Ehlers-Danlos syndrome

| PRJNA807151 | ENA

The Tsk2/+ mouse fibrotic phenotype is due to a gain-of-function mutation in the PIIINP segment of the Col3a1 gene

Project description:Systemic sclerosis (SSc) is a polygenic, autoimmune disorder of unknown etiology, characterized by the excessive accumulation of extracellular matrix (ECM) proteins, vascular alterations, and autoantibodies. The tight skin (Tsk)2/+ mouse model of SSc demonstrates signs similar to SSc including tight skin and excessive deposition of dermal ECM proteins. By linkage analysis, we mapped the Tsk2 gene mutation to less than 3 megabases on chromosome 1. We performed both RNA sequencing of skin transcripts and genome capture DNA sequencing of the region spanning this interval in Tsk2/+ and wild-type littermates. A missense point mutation in the procollagen III amino terminal propeptide segment (PIIINP) of Col3a1 was found to be the best candidate for Tsk2, so both in vivo and in vitro genetic complementation tests were used to prove that this Col3a1 mutation is the Tsk2 gene. All previously documented mutations in the human Col3a1 gene are associated with Ehlers-Danlos syndrome, a connective tissue disorder that leads to a defect in type III collagen synthesis. The Tsk2 point mutation is the first documented gain-of-function mutation associated with Col3a1, which leads instead to fibrosis. This discovery provides insight into the mechanism of skin fibrosis manifested by Tsk2/+ mice. For the transfection experiment, three Col3a1 knockout fibroblast transfected with WT Col3a1 samples and three Col3a1 knockout fibroblast transfected with Tsk2 Col3a1 samples were used. For the 4-week female, three WT mice and three Tsk2 total skin RNA were used.

2015-09-24 | E-GEOD-61728 | biostudies-arrayexpress

Project description:Mouse models of vascular Ehlers Danlos Syndrome

| PRJNA532935 | ENA

Microarray expression data obtained from human skin fibroblasts derived from patients affected with vascular Ehlers Danlos syndrome (vEDS)

Project description:Analysis of gene expression profiling of cultured skin fibroblasts obtained from patients affected with vascular Ehlers Danlos syndrome (vEDS) Transcriptome-wide expression profiling using the Affymetrix Gene 1.0 ST platform comparing the gene expression pattern of cultured skin fibroblasts derived from three patients with vEDS with those of nine healthy individuals

2018-01-03 | GSE102042 | GEO

Transcription profiling of human patients with aortic aneurysms associated with tricuspid and bicuspid valves

Project description:Patients with bicuspid aortic valve (BAV) have increased risk of thoracic ascending aortic aneurysm (AscAA) and dissection compared to those with a normal tricuspid aortic valve (TAV). The present study was undertaken to evaluate whether differences in gene expression exist in aortas from BAV and TAV patients with AscAA. Experiment Overall Design: Aneurysmal tissue of ascending aorta was collected from 13 patients with bicuspid aortic valve (BAV) and 12 patients with tricuspid aortic valve (TAV). Patients were selected on the basis of aortic diameter, age and other disease conditions. Patients with giant cell aortitis, cardiovascular abnormalities, inherited connective tissue disorders such as Marfan and Ehlers-Danlos syndrome were excluded from the study. RNA was extracted using Invitrogen RNA extraction kit and shown to be of adequate quality before application to Affymetrix microarray U133A gene chips probing for over 16,000 genes per chip. Two different methods of data analysis were performed: a linear model and GeneSpring.

2009-02-07 | E-GEOD-5180 | biostudies-arrayexpress

The Tsk2/+ mouse fibrotic phenotype is due to a gain-of-function mutation in the PIIINP segment of the Col3a1 gene

2015-09-24 | GSE61728 | GEO

Microarray expression data on cultured dermal fibroblasts from patients affected with classical Ehlers Danlos syndrome (cEDS)

Project description:Gene expression profiling of cultured skin fibroblasts obtained from patients affected with classical Ehlers Danlos syndrome (cEDS) Transcriptome-wide expression profiling using the Affymetrix Gene 1.0 ST platform comparing the gene expression pattern of cultured skin fibroblasts from 4 cEDS patients with those of 9 healthy individuals

2019-01-21 | GSE117680 | GEO

Transcriptome profiles of monocytes of Periodontal Ehlers–Danlos Syndrome patients

Project description:Periodontal Ehlers–Danlos syndrome (pEDS) is a rare, distinct hereditary disorder characterized by early onset periodontal destruction, tissue fragility and joint hypermobility. pEDS is caused by mutant variants of C1R (and C1S) genes, which encode the C1s (and C1s) subunits of the first component of the classical complement pathway. Abberant serine protease activation will result in C4 cleavage and local complement cascade activation, as well as other possible consequences. Although multiple studies have investigated the genetic variant analysis of pEDS, the transcriptome profiles of pEDS remain unknown. To better understand the pathomechanism underlying the clinical manifestation of pEDS and to identify novel molecular targets that may expand treatment strategies, our study performed transcriptome profiling by RNA sequencing of patient-derived monocytes from 2 pEDS patients and 3 normal controls. Genes related to periodontal host defense, inflammatory response, skin disease and vascular development were significantly enriched. Furthermore, we identified genes that may be involved in the pathogenesis of periodontal destruction and pretibial pigmentation of pEDS. Overall, our study presents the first pEDS transcriptomics data, revealing distinct molecular features in monocytes of periodontal Ehlers–Danlos syndrome, and serves as a tool to better understand the disease.

2021-12-16 | GSE190786 | GEO

CIDR-NIA Whole Exome Analysis of Ehlers-Danlos Syndrome

Project description:CIDR-NIA Whole Exome Analysis of Ehlers-Danlos Syndrome

| PRJNA517979 | ENA

CIDR-NIA Whole Exome Analysis of Ehlers-Danlos Syndrome

Project description:CIDR-NIA Whole Exome Analysis of Ehlers-Danlos Syndrome

| PRJNA517978 | ENA