Vascular inflammation caused by metabolic, autoimmune, and microbial insults mediates cardiovascular diseases that include hypertension and atherosclerosis (heart attacks, strokes), systemic lupus, and giant cell arteritis. An estimated 35 million Americans have hypercholesterolemia, contributing to 500,000 deaths underlying heart attacks and strokes. In these diseases, metabolic, autoimmune, and microbial insults continually challenge blood and vascular cells by triggering signaling to the nucleus mediated by BCL10. Genetic ablation of BCL10 rescues animals from atherosclerosis, aortic aneurysms, and fatty liver and insulin resistance due to overnutrition. Intracellular therapy with CP-CRADD is designed to extinguish BCL10-mediated noxious signals to avert vascular inflammation and its life-threatening complications including ruptured aneurysms in aorta and brain.