Multidimensional insights into squalene epoxidase drug development: <i>in vitro</i> mechanisms, <i>in silico</i> modeling, and <i>in vivo</i> implications
Ahmed A. Allam, Hassan A. Rudayni, Noha Ahmed, Faris F. Aba Alkhayl, Al Mokhtar Lamsabhi, Emadeldin M. Kamel
Abstract
INTRODUCTION: Squalene epoxidase (SQLE) is a pivotal enzyme in sterol biosynthesis, catalyzing the conversion of squalene to 2,3-oxidosqualene. Beyond its core role in cholesterol homeostasis, SQLE is implicated in cancer, hypercholesterolemia, and fungal infections, positioning it as a valuable therapeutic target. AREAS COVERED: We conducted a comprehensive literature search across primary databases to gather in vitro, in silico, and in vivo evidence on SQLE. This review explores the enzyme's structural and functional features, including substrate specificity and catalytic mechanisms, and examines inhibitor interactions. Computational methods predict enzyme - inhibitor dynamics, guiding drug design, while in vivo investigations clarify SQLE's role in metabolic disorders and tumorigenesis. Challenges include drug resistance and study discrepancies, but emerging technologies, such as cryo-electron microscopy and CRISPR editing, offer new avenues for deeper exploration. EXPERT OPINION: SQLE is an underexplored yet promising therapeutic target, with particular relevance to oxidative stress, ferroptosis, and gut microbiota research. Overcoming current barriers through advanced technologies and multidisciplinary strategies could propel SQLE-targeted treatments into clinical practice, supporting precision medicine and broader translational applications.