Valsartan Prevented Neointimal Hyperplasia and Inhibited SRSF1 Expression and the TLR4-iNOS-ERK-AT1 Receptor Pathway in the Balloon-injured Rat Aorta

Valsartan has the potential to attenuate neointimal hyperplasia and to suppress the inflammatory response. This study aimed to evaluate the role of valsartan in neointimal hyperplasia and the toll-like receptor 4 (TLR4)-nitric oxide synthase (NOS) pathway in the balloon-injured rat aorta.Forty-eight Wistar rats were randomly allocated to three groups: sham control (control), balloon-injured group (surgery), and balloon-injured+valsartan-treated group (valsartan). Rats were killed at 14 and 28 days after balloon-injury, and then the aortic tissues were collected for morphometric analysis as well as for measurements of the mRNA or protein expression of angiotensin II, angiotensin II type 1 (AT1) receptor, angiotensin II type 2 (AT2) receptor, TLR4, endothelial nitric oxide synthase (eNOS), inducible NOS (iNOS), serine/arginine-rich splicing factor 1(SRSF1) and extracellular signal regulated kinase (ERK). Valsartan at a dose of 20 mg/kg/day markedly decreased neointimal hyperplasia in the aorta of balloon-injured rats, and significantly reduced the mRNA or protein expression of TLR4, AT1 receptor, SRSF1 and phosphorylated-ERK (p-ERK) as well as the aortic levels of iNOS (all p < 0.05). Moreover, valsartan increased the eNOS level and AT2 receptor mRNA and protein expression levels (all p < 0.05). Valsartan prevented neointimal hyperplasia and inhibited SRSF1 expression and the TLR4-iNOS-ERK-AT1 receptor pathway in the balloon-injured rat aorta.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:70

Enthalten in:

Physiological research - 70(2021), 4 vom: 31. Aug., Seite 533-542

Sprache:

Englisch

Beteiligte Personen:

Li, Yonghong [VerfasserIn]
Guo, Junjie [VerfasserIn]
Yu, Haichu [VerfasserIn]
Liu, Xin [VerfasserIn]
Zhou, Jingwei [VerfasserIn]
Chu, Xianming [VerfasserIn]
Xu, Qingke [VerfasserIn]
Sun, Tingru [VerfasserIn]
Peng, Liang [VerfasserIn]
Yang, Xi [VerfasserIn]
Tang, Xilong [VerfasserIn]

Themen:

170974-22-8
80M03YXJ7I
Angiotensin II Type 1 Receptor Blockers
EC 1.14.13.39
EC 2.7.11.24
Extracellular Signal-Regulated MAP Kinases
Journal Article
Nitric Oxide Synthase Type II
Nos2 protein, rat
Receptor, Angiotensin, Type 1
SRSF1 protein, rat
Serine-Arginine Splicing Factors
Tlr4 protein, rat
Toll-Like Receptor 4
Valsartan

Anmerkungen:

Date Completed 27.01.2022

Date Revised 26.02.2024

published: Print-Electronic

Citation Status MEDLINE

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM326105719