# Oleic Acid-Esterified Octacosanol as a Functional Ingredient to Counter Obesity-Associated Lipid Dysregulation through PPAR-Targeted Regulation

## TL;DR

This study shows that modifying octacosanol with oleic acid boosts its ability to combat obesity-related lipid issues by targeting PPARs and enhancing fat breakdown and thermogenesis.

## Contribution

The study reveals that oleic acid esterification enhances octacosanol's metabolic activity through PPAR-targeted regulation in adipose tissue.

## Key findings

- Oleic acid-esterified octacosanol (OEO) promotes thermogenic remodeling in adipose tissue.
- Nonesterified octacosanol (NO) increases fatty acid β-oxidation.
- Structural modification of octacosanol significantly improves its lipid catabolism activity.

## Abstract

Octacosanol, a major constituent of policosanol, exhibits
lipid-lowering
activity, particularly when esterified with fatty acids. Although
its cholesterol-lowering actions have been linked to the modulation
of fatty acid and cholesterol biosynthesis, its functions within adipose
tissue remain poorly defined. Here, we examined nonesterified octacosanol
(NO), lauric acid-esterified octacosanol (LEO), and oleic acid-esterified
octacosanol (OEO) in high-fat diet-fed mice for 11 weeks. Target prediction
and molecular docking identified PPARα and PPARδ as putative
targets of octacosanol, guiding downstream mechanistic analyses in
adipose tissue. Both NO and OEO enhanced lipolysis; NO preferentially
increased fatty acid β-oxidation, whereas OEO specifically promoted
thermogenic remodeling, indicating distinct metabolic consequences
driven by ester chemistry. Together, these findings demonstrate that
structural modification, particularly oleic acid esterification, substantially
augments the metabolic activity of octacosanol in lipid catabolism
and thermogenesis, underscoring its potential relevance in obesity-associated
metabolic regulation.