Targeted Delivery of Specialized Pro-Resolving Mediators (SPMs) for Improved Treatments of Inflammatory Diseases and
Adeola Aminu1, Zhenjia Wang1,2
1Department of Pharmaceutical Sciences, Division of Drug Delivery and Pharmaceutical Bioengineering, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, NY 14215, USA.
Abstract:
Acute and chronic inflammation underlies the pathogenesis of numerous diseases, including autoimmune disorders, atherosclerosis, infections, and cancer. Although non-steroidal anti-inflammatory drugs (NSAIDs) and corticosteroids are widely used to control inflammation, their clinical utility is limited by adverse effects such as gastrointestinal toxicity and immunosuppression. Specialized pro-resolving mediators (SPMs), a family of endogenous lipid mediators derived from omega-3 fatty acids, have emerged as promising therapeutics because they actively promote the resolution of inflammation without suppressing host immunity. However, their clinical translation is hindered by poor chemical stability, rapid metabolic degradation, and short circulation half-lives. To overcome these limitations, a variety of delivery platforms-including liposomes, extracellular vesicles, PLGA nanoparticles, and hydrogels-have been developed to improve SPM stability, pharmacokinetics, and therapeutic efficacy. This review summarizes the cellular targets of SPMs, current delivery challenges, and emerging strategies for cell- and tissue-specific SPM delivery. We also discuss future opportunities for targeted SPM therapies in the treatment of inflammatory diseases and cancer.
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