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Effects of moderate doses of ionizing radiation on experimental abdominal aortic aneurysm

ABSTRACT: Effects of moderate doses of ionizing radiation on experimental abdominal aortic aneurysm

PROVIDER: PRJNA1125003 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29441671_1.fastq.gz	Fastqsanger.gz
	SRR29441671_2.fastq.gz	Fastqsanger.gz
	SRR29441672_1.fastq.gz	Fastqsanger.gz
	SRR29441672_2.fastq.gz	Fastqsanger.gz
	SRR29441673_1.fastq.gz	Fastqsanger.gz

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Effects of moderate doses of ionizing radiation on experimental abdominal aortic aneurysm

Project description:Objectives: Exposure to ionizing radiation has been linked to cardiovascular diseases. However, the impact of moderate doses of radiation on abdominal aortic aneurysm (AAA) remains unknown. Approaches : Angiotensin II-infused Apoe-/- mice were irradiated (acute, 1 Gray) either 3 days before (Day-3) or 1 day after (Day+1) pomp implantation. Primary aortic smooth muscle cells (SMCs) isolated were irradiated (acutely 1 Gray) for mechanistic studies and functional tested in vitro. Results: Day-3 and Day+1 irradiation resulted in a significant reduction in aorta dilation (Control: 1.39+/-0.12; Day-3: 1.12+/-0.11; Day+1: 1.15+/-0.08 mm, P<0.001) and AAA incidence (Control: 81.0%; Day-3: 33.3%, Day+1: 53.3%) compared to the non_x0002_irradiated group. Day-3 and Day+1 irradiation led to an increase in collagen content in the adventitia (Thickness control: 23.64+/-2.9; Day-3: 54.39+/-15.5; Day+1 37.55+/- 10.8 mm, P=0.006). However, the underlying protective mechanisms were different between Day-3 and Day+1 groups. Irradiation before Angiotensin II (AngII) infusion mainly modulated vascular smooth muscle cells (VSMCs) phenotype with a decrease in contractile profile and enhanced proliferative and migratory activity. Irradiation after AngII infusion led to an increase in macrophage content with a local anti-inflammatory phenotype characterized by the upregulation of M2-like gene and IL-10 expression. Conclusion: Moderate doses of ionizing radiation mitigates AAA either through VSCM phenotype or inflammation modulation according to the time of irradiation.

2024-10-24 | GSE270106 | GEO

RNA-sequencing of abdominal aortic aneurysm (AAA) and control abdominal aorta tissues

Project description:Abdominal aortic aneurysm (AAA) is a permanent segmental dilatation of the abdominal aorta, contributing to a high mortality once rupture. We performed RNA-sequencing analysis of abdominal aorta tissues from 14 participants, including seven patients with AAA and seven control individuals.

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Effects of moderate doses of ionizing radiation on experimental abdominal aortic aneurysm.

Project description:BackgroundExposure to ionizing radiation has been linked to cardiovascular diseases. However, the impact of moderate doses of radiation on abdominal aortic aneurysm (AAA) remains unknown.MethodsAngiotensin II-infused Apoe-/- mice were irradiated (acute, 1 Gray) either 3 days before (Day-3) or 1 day after (Day+1) pomp implantation. Isolated primary aortic vascular smooth muscle cells (VSMCs) were irradiated (acute 1 Gray) for mechanistic studies and functional testing in vitro.ResultsDay-3 and Day+1 irradiation resulted in a significant reduction in aorta dilation (Control: 1.39+/-0.12; Day-3: 1.12+/-0.11; Day+1: 1.15+/-0.08 mm, P<0.001) and AAA incidence (Control: 81.0%; Day-3: 33.3%, Day+1: 53.3%) compared to the non-irradiated group. Day-3 and Day+1 irradiation led to an increase in collagen content in the adventitia (Thickness control: 23.64+/-2.9; Day-3: 54.39+/-15.5; Day+1 37.55+/-10.8 mm, P = 0.006). However, the underlying protective mechanisms were different between Day-3 and Day+1 groups. Irradiation before Angiotensin II (AngII) infusion mainly modulated vascular smooth muscle cell (VSMC) phenotype with a decrease in contractile profile and enhanced proliferative and migratory activity. Irradiation after AngII infusion led to an increase in macrophage content with a local anti-inflammatory phenotype characterized by the upregulation of M2-like gene and IL-10 expression.ConclusionModerate doses of ionizing radiation mitigate AAA either through VSCM phenotype or inflammation modulation, depending on the time of irradiation.

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Transcriptomic change related to abdominal aortic aneurysm pathogenesis

Project description:Angiotensin II (Ang II)-induced abdominal aortic aneurysm model was established in low-density lipoprotein receptor-deficient mice, and the gene expression profiles in abdominal aortic tissues exhibiting varying degrees of severity were analyzed.

2025-02-14 | GSE285959 | GEO

Circular RNA expression profiles in human abdominal aortic aneurysm

Project description:We have employed circRNA microarray expression profiling as a discovery platform to identify the dysregulated circRNAs in human abdominal aortic aneurysm.

2020-02-18 | GSE144431 | GEO

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scRNA-seq of Abdominal aortic aneurysm tissues in Gsdme-KO mice

Project description:The aim of this study was to explore the transciptome of the diverse vascular smooth muscle cells subsets from abdominal aortic aneurysm tissues in Gsdme deletion mice.The model was established by exposing the infrarenal aorta to PPE (porcine pancreatic elastase) under pressure to induce aneurysmal degeneration for 4 weeks.we compared the characteristics of SMC subpopulation beteew the WT and KO groupsto reveal the effect of GSDME in the progression of Abdomanl Aortic Aneurysm.

2025-05-01 | GSE264071 | GEO

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