Novel lipid-mimetic prodrugs delivering active compounds to adipose tissue

Area of Science:

• Pharmacology and Drug Delivery
• Metabolic Diseases and Endocrinology

Background:

• Obesity and related pathologies represent a significant global health challenge requiring novel therapeutic strategies.
• Adipose tissue plays a crucial endocrine role, influencing adiposity and insulin resistance through adipokine secretion.
• Targeting adipose tissue directly offers a promising approach for pharmacological intervention in obesity.

Purpose of the Study:

• To develop and evaluate novel lipid-mimetic prodrugs for targeted delivery to adipose tissue.
• To investigate the feasibility of using triglyceride-mimetic structures for delivering active compounds to fat deposits.
• To assess the efficacy of this approach in delivering an anti-obesity agent (pterostilbene) to adipose tissue.

Main Methods:

• Synthesis of pterostilbene-containing triglyceride mimetic prodrugs.
• In vitro hydrolysis studies using pancreatic lipases to confirm position-selective cleavage.
• In vivo administration of prodrugs to mice on an obesogenic diet and analysis of drug distribution in adipose tissue.

Main Results:

• The synthesized prodrugs demonstrated position-selective hydrolysis by pancreatic lipases.
• Pterostilbene and its metabolites were detected in the adipose tissue of mice fed the prodrug-containing diet.
• This study represents the first successful application of this prodrug strategy for delivering an obesity antagonist to adipose tissue.

Conclusions:

• Reversibly incorporating active compounds into triglyceride-mimetic structures is a feasible strategy for targeted delivery to adipose tissue.
• This novel approach enables the precise delivery of therapeutic agents to the site of action, potentially enhancing efficacy and reducing side effects.
• The developed lipid-mimetic prodrugs show promise for future pharmacological interventions against obesity and associated metabolic disorders.