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Nuclear Factor-kappa B inhibition in mouse aortic smooth muscle cells stimulated by cholesterol overload or tumor necrosis factor

ABSTRACT: Nuclear Factor-kappa B inhibition in mouse aortic smooth muscle cells stimulated by cholesterol overload or tumor necrosis factor

PROVIDER: PRJEB67378 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR12116714_1.fastq.gz	Fastqsanger.gz
	ERR12116714_2.fastq.gz	Fastqsanger.gz
	ERR12116715_1.fastq.gz	Fastqsanger.gz
	ERR12116715_2.fastq.gz	Fastqsanger.gz
	ERR12116716_1.fastq.gz	Fastqsanger.gz

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Project description:Tumor necrosis factor (TNF) is elevated in human abdominal aortic aneurysms (AAA). Non-selective TNF inhibition has been linked to several severe side effects. Compounds that target the proinflammatory soluble TNF (solTNF) while preserving the immunomodulatory capabilities of transmembrane TNF (tmTNF) may prevent such side effects. We hypothesize that inhibition of solTNF signaling by XPro1595 is just as effective as non-selective TNF inhibition by etanercept (ETN) in preventing AAA expansion. The effect of XPro1595 and ETN was examined in porcine pancreatic elastase (PPE) induced AAA mice and findings of XPro1595 was confirmed in Angiotensin II (AngII) induced AAA in hyperlipidemic apolipoprotein E (Apoe) -/- mice. XPro1595 treatment significantly reduced AAA expansion in both models, while a similar trend (p=0.06) was observed in ETN-treated mice using the PPE model. In the PPE aneurysm wall, elastin integrity scores were significantly improved in the XPro1595 group. In the aneurysms, mean TNFR1wasreduced no-significantly (p=0.07) by 50% non-significant after TNF inhibition, but the cellular location in murine AAAs were unaffected and like the localization in human AAAs. Systemic TNF levels were elevated in XPro1595-treated mice, while systemic IL-10 levels were significantly increased after ETN-treatment, while in AngII induced AAA mice systemic TNF and IL5 levels were elevated after XPro1595 treatment. In early AAA development, proteomic analyses revealed that components of the fibrinogen complex were elevated while prostaglandin E2 synthase was down regulated by Xpro1595 (unadjusted p-values). David’s ontology analyses revealed that several pathways including cell matrix adhesion, extracellular space, fibrinogen complex, blood microparticles and glycoproteins were elevated by XPro1595 treatment. In conclusion, selective inhibition of solTNF reduces aneurysm expansion. This supports targeting solTNF as an attractive treatment option for AAA patients.

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Nuclear Factor-kappa B inhibition in mouse aortic smooth muscle cells stimulated by cholesterol overload or tumor necrosis factor

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