SOAT1 adenovirus

The sterol O-acyltransferase 1 (SOAT1) gene, also known as acyl-CoA:cholesterol acyltransferase 1 (ACAT1), plays a crucial role in cellular cholesterol metabolism. This gene encodes an endoplasmic reticulum (ER)-resident enzyme that catalyzes the formation of cholesterol esters from free cholesterol and long-chain fatty acids. By esterifying cholesterol, SOAT1 regulates intracellular cholesterol homeostasis and prevents the toxic accumulation of free cholesterol on cell membranes. SOAT1 is highly expressed in tissues involved in lipid metabolism, such as the liver, adrenal glands, and macrophages, and its dysregulation has been implicated in a variety of diseases, including atherosclerosis, neurodegenerative diseases, and cancer. Notably, overexpression of SOAT1 in tumors is associated with increased cholesterol ester storage, which contributes to cancer cell proliferation and survival under nutrient-deficient conditions.

The SOAT1 adenovirus is a recombinant viral vector designed to deliver the SOAT1 gene or its regulatory elements to target cells for functional studies or therapeutic applications. Adenoviruses are widely used in gene therapy due to their high transduction efficiency, broad tropism, and ability to infect both dividing and non-dividing cells. In research, this viral vector has facilitated the exploration of the role of SOAT1 in cholesterol metabolism, cancer progression, and neurodegenerative diseases. Furthermore, the adenoviral delivery system ensures stable and transient gene expression, making it suitable for both in vitro and in vivo experiments. Safety-modified adenoviruses, such as those with deletions of the E1/E3 regions, further reduce immunogenicity while maintaining high transduction efficiency.