From Antioxidant To Senotherapeutic: Repurposing N-Acetylcysteine To Counteract Senescence Via The Hur Pathway In Human Endothelial Cells
Our cells naturally age, a process called senescence, which is a key contributor to many age-related diseases and chronic inflammation. A major factor driving this cellular aging is oxidative stress, an imbalance caused by harmful molecules known as reactive oxygen species (ROS).
Recent research has shed light on a crucial player in cellular protection: an RNA-binding protein called HuR. This protein acts like a guardian, regulating genes that help cells fight off stress and act as antioxidants. However, as our cells age, particularly the endothelial cells that line our blood vessels, the levels of this protective HuR protein decline. This decline leads to an increase in harmful ROS and other markers of cellular aging.
Excitingly, a study has shown that treating these aging cells with N-acetylcysteine (NAC), a well-known antioxidant, can reverse these detrimental effects. NAC treatment successfully restored the levels of the protective HuR protein, significantly reduced oxidative stress, and decreased inflammatory signals within the cells. This discovery suggests that NAC could be a promising therapeutic approach to combat age-related problems affecting our blood vessels and potentially other age-related conditions.
Source: link to paper