Hyaluronic Acid-Modified Luteolin–Copper Complex Nanodelivery System for Bacterial Prostatitis

Bacterial prostatitis is a common disease of the male genitourinary system, which seriously affects the normal life and health of male patients. Antibiotics are commonly used in the clinical treatment of bacterial prostatitis, but the efficacy of fluoroquinolones is gradually declining due to the increasing drug resistance of bacteria. Hence, it is necessary to find new antibacterial drugs to treat bacterial prostatitis. Luteolin is a natural flavonoid compound with many pharmacological activities such as antibacterial and anti-inflammatory activities, but its poor water solubility and low structural stability seriously limit its clinical application. In this study, we designed a targeting drug delivery system via a luteolin-copper complex grafted with hyaluronic acid. The results of the characterization proved the successful synthesis of the system. The results of the in vitro performance test show that the system has a good antibacterial effect and excellent blood compatibility and can be effectively released under different pH conditions. The prepared nanodrug delivery system not only provides a new idea for the treatment of bacterial prostatitis but also lays a theoretical and practical foundation for the wide application of luteolin in clinical practice.