Methotrexate Attenuates Vascular Inflammation Through an Adenosine-microRNA-dependent Pathway
Authors
Affiliations
Endothelial cell (EC) activation is an early hallmark in the pathogenesis of chronic vascular diseases. MicroRNA-181b () is an important anti-inflammatory mediator in the vascular endothelium affecting endotoxemia, atherosclerosis, and insulin resistance. Herein, we identify that the drug methotrexate (MTX) and its downstream metabolite adenosine exert anti-inflammatory effects in the vascular endothelium by targeting and activating expression. Both systemic and endothelial-specific -deficient mice develop vascular inflammation, white adipose tissue (WAT) inflammation, and insulin resistance in a diet-induced obesity model. Moreover, MTX attenuated diet-induced WAT inflammation, insulin resistance, and EC activation in a -dependent manner. Mechanistically, MTX attenuated cytokine-induced EC activation through a unique adenosine-adenosine receptor A3-SMAD3/4- signaling cascade. These findings establish an essential role of endothelial in controlling vascular inflammation and that restoring in ECs by high-dose MTX or adenosine signaling may provide a potential therapeutic opportunity for anti-inflammatory therapy.
Navigating Q fever: Current perspectives and challenges in outbreak preparedness.
Meles D, Khairullah A, Mustofa I, Wurlina W, Akintunde A, Suwasanti N Open Vet J. 2024; 14(10):2509-2524.
PMID: 39545195 PMC: 11560256. DOI: 10.5455/OVJ.2024.v14.i10.2.
Godbole S, Solomon J, Johnson M, Srivastava A, Carsons S, Belilos E Biomedicines. 2024; 12(7).
PMID: 39062180 PMC: 11275112. DOI: 10.3390/biomedicines12071608.
MicroRNA-181 in cardiovascular disease: Emerging biomarkers and therapeutic targets.
Lv B, He S, Li P, Jiang S, Li D, Lin J FASEB J. 2024; 38(9):e23635.
PMID: 38690685 PMC: 11068116. DOI: 10.1096/fj.202400306R.
Chen M, Yang D, Zhou Y, Yang C, Lin W, Liu J Int J Biol Sci. 2024; 20(6):2092-2110.
PMID: 38617538 PMC: 11008260. DOI: 10.7150/ijbs.93544.
The Clinical Significance of Salusins in Systemic Sclerosis-A Cross-Sectional Study.
Nowaczyk J, Blicharz L, Zawistowski M, Sikora M, Zaremba M, Czuwara J Diagnostics (Basel). 2023; 13(5).
PMID: 36899991 PMC: 10001236. DOI: 10.3390/diagnostics13050848.