Oxidized HDL, as a Novel Biomarker for Calcific Aortic Valve Disease, Promotes the Calcification of Aortic Valve Interstitial Cells

2019 ◽  
Vol 12 (6) ◽  
pp. 560-568
Author(s):  
Jia Teng Sun ◽  
Yuan Yuan Chen ◽  
Jing Yan Mao ◽  
Yan Ping Wang ◽  
Ya Fen Chen ◽  
...  
Bone Reports ◽  
2020 ◽  
Vol 13 ◽  
pp. 100303
Author(s):  
Arseniy Lobov ◽  
Daria Semenova ◽  
Aleksandra Kostina ◽  
Artem Kiselev ◽  
Arsenii Zabirnyk ◽  
...  

2014 ◽  
Vol 72 ◽  
pp. 146-156 ◽  
Author(s):  
Diala El Husseini ◽  
Marie-Chloé Boulanger ◽  
Ablajan Mahmut ◽  
Rihab Bouchareb ◽  
Marie-Hélène Laflamme ◽  
...  

2021 ◽  
Vol 8 ◽  
Author(s):  
Fan Xiao ◽  
Qing Zha ◽  
Qianru Zhang ◽  
Qihong Wu ◽  
Zhongli Chen ◽  
...  

Objectives: This study explores the concentration and role of glucagon-like peptide-1 (GLP-1) in calcific aortic valve disease (CAVD).Background: Calcific aortic valve disease is a chronic disease presenting with aortic valve degeneration and mineralization. We hypothesized that the level of GLP-1 is associated with CAVD and that it participates in the calcification of aortic valve interstitial cells (AVICs).Methods: We compared the concentration of GLP-1 between 11 calcific and 12 normal aortic valve tissues by immunohistochemical (IHC) analysis. ELISA was used to measure GLP-1 in serum of the Control (n = 197) and CAVD groups (n = 200). The effect of GLP-1 on the calcification of AVICs and the regulation of calcific gene expression were also characterized.Results: The GLP-1 concentration in the calcific aortic valves was 39% less than that in the control non-calcified aortic valves. Its concentration in serum was 19.3% lower in CAVD patients. Multivariable regression analysis demonstrated that GLP-1 level was independently associated with CAVD risk. In vitro, GLP-1 antagonized AVIC calcification in a dose- and time-dependent manner and it down-regulated RUNX2, MSX2, BMP2, and BMP4 expression but up-regulated SOX9 expression.Conclusions: A reduction in GLP-1 was associated with CAVD, and GLP-1 participated in the mineralization of AVICs by regulating specific calcific genes. GLP-1 warrants consideration as a novel treatment target for CAVD.


2021 ◽  
Author(s):  
Chunli wang ◽  
Yi Xia ◽  
Linghang Qu ◽  
Yanju Liu ◽  
Xianqiong Liu ◽  
...  

Cardamonin (CDM) is a natural chalcone with strong anti-inflammatory properties. Inflammation-induced osteogenic changes in valve interstitial cells (VICs) play crucial roles in the development of calcific aortic valve disease (CAVD),...


2017 ◽  
Vol 114 (7) ◽  
pp. 1631-1636 ◽  
Author(s):  
Qingchun Zeng ◽  
Rui Song ◽  
David A. Fullerton ◽  
Lihua Ao ◽  
Yufeng Zhai ◽  
...  

Calcific aortic valve disease is a chronic inflammatory process, and aortic valve interstitial cells (AVICs) from diseased aortic valves express greater levels of osteogenic factors in response to proinflammatory stimulation. Here, we report that lower cellular levels of IL-37 in AVICs of diseased human aortic valves likely account for augmented expression of bone morphogenetic protein-2 (BMP-2) and alkaline phosphatase (ALP) following stimulation of Toll-like receptor (TLR) 2 or 4. Treatment of diseased AVICs with recombinant human IL-37 suppresses the levels of BMP-2 and ALP as well as calcium deposit formation. In mice, aortic valve thickening is observed when exposed to a TLR4 agonist or a high fat diet for a prolonged period; however, mice expressing human IL-37 exhibit significantly lower BMP-2 levels and less aortic valve thickening when subjected to the same regimens. A high fat diet in mice results in oxidized low-density lipoprotein (oxLDL) deposition in aortic valve leaflets. Moreover, the osteogenic responses in human AVICs induced by oxLDL are suppressed by recombinant IL-37. Mechanistically, reduced osteogenic responses to oxLDL in human AVICs are associated with the ability of IL-37 to inhibit NF-κB and ERK1/2. These findings suggest that augmented expression of osteogenic factors in AVICs of diseased aortic valves from humans is at least partly due to a relative IL-37 deficiency. Because recombinant IL-37 suppresses the osteogenic responses in human AVICs and alleviates aortic valve lesions in mice exposed to high fat diet or a proinflammatory stimulus, IL-37 has therapeutic potential for progressive calcific aortic valve disease.


2018 ◽  
Author(s):  
Barbara Kutryb-Zajac ◽  
Patrycja Jablonska ◽  
Marcin Serocki ◽  
Alicja Bulinska ◽  
Paulina Mierzejewska ◽  
...  

AbstractExtracellular nucleotide catabolism contributes to immunomodulation, cell differentiation and tissue mineralization by controlling nucleotide and adenosine concentrations and its purinergic effects. Disturbances of purinergic signaling in valves may lead to its calcification. This study aimed to investigate the side-specific changes in extracellular nucleotide and adenosine metabolism in the aortic valve during calcific aortic valve disease (CAVD) and to identify the individual enzymes that are involved in these pathways as well as their cellular origin.Stenotic aortic valves were characterized by reduced levels of extracellular ATP removal and impaired production of adenosine. Respectively, already reduced levels of extracellular adenosine were immediately degraded further due to the elevated rate of adenosine deamination. For the first time, we revealed that this metabolic pattern was observed only on the fibrosa surface of stenotic valve that is consistent with the mineral deposition on the aortic side of the valve. Furthermore, we demonstrated that non-stenotic valves expressed mostly ecto-nucleoside triphosphate diphosphohydrolase 1 (eNTPD1) and ecto-5’nucleotidase (e5NT), while stenotic valves ecto-nucleotide pyrophosphatase/ phosphodiesterase 1, alkaline phosphatase and ecto-adenosine deaminase (eADA). On the surface of endothelial cells, isolated from non-stenotic valves, high activities of eNTPD1 and e5NT were found. Whereas, in valvular interstitial cells, eNPP1 activity was also detected. Stenotic valve immune infiltrate was an additional source of eADA. We demonstrated the presence of A1, A2a and A2b adenosine receptors in both, non-stenotic and stenotic valves with diminished expression of A2a and A2b in the former.Extracellular nucleotide and adenosine metabolism that involves complex ecto-enzyme pathways and adenosine receptor signaling were adversely modified in CAVD. In particular, diminished activities of eNTPD1 and e5NT with the increase in eADA that originated from valvular endothelial and interstitial cells as well as from immune inflitrate may affect aortic valve extracellular nucleotide concentrations to favor a proinflammatory milieu, highlighting a potential mechanism and target for CAVD therapy.


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