Pyroptosis was suppressed by 20-hydroxyecdysone through Lin28b-mediated let-7d in vascular endothelial cells.

20-hydroxyecdysone (20E), a natural polyhydroxylated steroid, has exhibited anti-inflammatory effects across various diseases. This study investigates the potential connection between 20E's anti-inflammatory properties and the RNA-binding protein Lin28b, which is notably upregulated in TNF-α-stimulated endothelial cells. Herein, we discovered that 20E can selectively downregulate Lin28b expression without affecting its paralog Lin28a.

Catalpol improved energy metabolism and inflammation through the SIRT5-mediated signaling pathway to ameliorate myocardial injury.

Background And Purpose: Catalpol (CAT) has diverse pharmacological functions, including cellular homeostasis maintenance and anti-inflammatory effects. Sirtuin 5 (SIRT5) plays a considerable role in regulating cellular homeostasis in cardiac diseases. Our research explores the therapeutic potential of CAT against myocardial injury and its underlying mechanism.

Kaempferol alleviates myocardial ischemia injury by reducing oxidative stress via the HDAC3-mediated Nrf2 signaling pathway.

Introduction: Kaempferol (KAE) is a flavonoid found in various plants. Recent studies showed that high dietary intake of KAE was associated with a lower risk of myocardial infarction; however, the cardioprotective mechanism of KAE remains unknown.

Objectives: To determine the effect of KAE on cardiac injury in isoproterenol (ISO)-induced rats and cobalt chloride (CoCl)-treated cardiomyocytes, and the underlying mechanisms.

Regulation of cardiovascular diseases by histone deacetylases and NADPH oxidases.

Histone deacetylases (HDACs) play critical roles in cardiovascular diseases (CVDs). In addition, reactive oxygen species (ROS) produced by NADPH oxidases (NOXs) exert damaging effects due to oxidative stress on heart and blood vessels. Although NOX-dependent ROS production is implicated in pathogenesis, the relationship between HDACs and NOXs in CVDs remains to be elucidated.

Correlation between essential and toxic elements in maternal blood during early pregnancy and atrial septal defects/ventricular septal defects/patent ductus arteriosus in offspring.

Background: Congenital heart defects (CHDs) are the most common congenital malformation in the world. Recent studies have found that essential and toxic trace element levels may play a crucial role in the risk of neonatal malformation. However, the relationships between element levels in early pregnancy and CHD risk among humans remain unclear.

20-Hydroxyecdysone inhibits inflammation via SIRT6-mediated NF-κB signaling in endothelial cells.

20-Hydroxyecdysone (20E) is known to have numerous pharmacological activities and can be used to treat diabetes and cardiovascular diseases. However, the protective effects of 20E against endothelial dysfunction and its targets remain unclear. In the present study, we revealed that 20E treatment could modulate the release of the endothelium-derived vasomotor factors NO, PGI and ET-1 and suppress the expression of ACE in TNF-α-induced 3D-cultured HUVECs.

Isoliquiritigenin from licorice flavonoids attenuates NLRP3-mediated pyroptosis by SIRT6 in vascular endothelial cells.

Ethnopharmacologic Relevance: Licorice is a traditional Chinese medicine that has been used for cardiovascular diseases. Recent studies found that supplementation with licorice extracts attenuated the development of atherosclerosis (AS) in hypercholesterolemic patients. Many studies have shown that licorice flavonoids, the main active components of licorice, have a variety of pharmacological effects, including anti-inflammation, regulation of lipid metabolism, and antioxidation.

Combined Shikonin-Loaded MPEG-PCL Micelles Inhibits Effective Transition of Endothelial-to-Mesenchymal Cells.

Introduction: Shikonin is well known for its anti-inflammatory activity in cardiovascular diseases. However, the application of shikonin is limited by its low water solubility and poor bioavailability. Methoxy poly (ethylene glycol)-b-poly (ε-caprolactone) (MPEG-PCL) is considered a promising delivery system for hydrophobic drugs.

Sirt6 inhibits vascular endothelial cell pyroptosis by regulation of the Lin28b/let-7 pathway in atherosclerosis.

Our previous study showed that Sirtuin 6 (Sirt6) plays an important role in the regulation of vascular endothelial cell inflammation. Recently, studies have reported that the RNA binding protein Lin28b directly regulates the let-7 microRNA (miRNA), which participates in the process of atherosclerosis (AS) by regulating inflammation. Pyroptosis is a form of programmed cell death that is accompanied by inflammation and is critical for AS.

Rhaponticum carthamoides improved energy metabolism and oxidative stress through the SIRT6/Nrf2 pathway to ameliorate myocardial injury.

Background: Rhaponticum carthamoides (Willd.) Iljin (Rha) is a member of the family Compositae that is widely used in folk medicine as a dietary supplement to treat cardiovascular diseases (CVDs), such as senile cardiac insufficiency, and to restore myocardial function after surgery. Sirtuin 6 (SIRT6), an NAD-dependent class III histone deacetylase, plays a considerable role in the administration of CVDs.

Effects of hydrogen peroxide on endothelial function in three-dimensional hydrogel vascular model and regulation mechanism of polar protein Par3.

Three-dimensional (3D) cell cultures better reflect the function of endothelial cells (ECs) than two-dimensional (2D) cultures. In recent years, studies have found that ECs cultured in a 3D luminal structure can mimic the biological characteristics and phenotypes of vascular ECs, thus making it more suitable for endothelial dysfunction research. In this study, we used a 3D model and 2D tissue culture polystyrene (TCP) to investigate the effects of cell polarity on hydrogen peroxide (HO)-induced endothelial dysfunction and its related mechanisms.

HDAC11 promotes both NLRP3/caspase-1/GSDMD and caspase-3/GSDME pathways causing pyroptosis via ERG in vascular endothelial cells.

Histone deacetylase 11 (HDAC11), a sole member of the class IV HDAC subfamily, participates in various cardiovascular diseases. Recent evidence showed that pyroptosis was a form of inflammatory programmed cell death and is critical for atherosclerosis (AS). However, little is known about the effect of HDAC11 on endothelial cell pyroptosis in AS.