Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by inflammation and progressive degeneration of the joints, significantly impacting patients' quality of life. Current therapies are unable to cure the disease and often present significant side effects. This work explores an innovative approach to RA treatment using chitosan nanoparticles functionalized with vasoactive intestinal peptide (VIP). Chitosan, a natural polysaccharide derived from chitin, is known for its biocompatible and biodegradable properties, making it an ideal candidate for drug delivery. VIP, an endogenous peptide with potent anti-inflammatory and immunomodulatory properties, has shown therapeutic potential in RA. However, its instability in vivo and rapid degradation limit its clinical efficacy. The main objectives of this work were to evaluate the release profile of the peptide from chitosan and to develop and characterize chitosan-VIP nanoparticles produced through electrospray technique. The resulting systems were subjected to studies with cellular models to assess their anti-inflammatory effects and modulation of immune responses. Preliminary results suggest that chitosan nanoparticles enriched with VIP may represent a promising strategy for targeted and sustained RA treatment. Further preclinical and clinical studies will be necessary to confirm the efficacy and safety of this innovative therapeutic platform.
L'artrite reumatoide (AR) è una malattia autoimmune cronica caratterizzata da infiammazione e degenerazione progressiva delle articolazioni, con significativi impatti sulla qualità della vita dei pazienti. Attualmente, le terapie disponibili non sono in grado di curare la malattia e spesso presentano effetti collaterali rilevanti. Questo lavoro esplora un approccio innovativo per il trattamento dell'AR utilizzando nanoparticelle di chitosano funzionalizzate con il peptide intestinale vasoattivo (VIP). Il chitosano, un polisaccaride naturale derivato dalla chitina, è noto per le sue proprietà biocompatibili e biodegradabili che lo rendono un candidato ideale per la somministrazione di farmaci. Il VIP, un peptide endogeno con potenti proprietà antinfiammatorie e immunomodulatrici, ha dimostrato un potenziale terapeutico nell'AR. Tuttavia, la sua instabilità in vivo e la rapida degradazione limitano la sua efficacia clinica. Gli obiettivi principali di questo lavoro sono stati la valutazione della curva di rilascio del peptide dal chitosano e lo sviluppo e caratterizzazione di nanoparticelle chitosano-VIP prodotte tramite la tecnica dell’elettrospray. I sistemi così ottenuti sono stati sottoposti a studi con modelli cellulari per valutarne l’effetto antinfiammatorio e la modulazione delle risposte immunitarie. I risultati preliminari suggeriscono che le nanoparticelle di chitosano arricchite con VIP possono rappresentare una strategia promettente per il trattamento mirato e sostenibile dell'AR. Ulteriori studi preclinici e clinici saranno necessari per confermare l'efficacia e la sicurezza di questa innovativa piattaforma terapeutica.
Nanoparticelle di chitosano funzionalizzate con peptide intestinale vasoattivo: una nuova frontiera nel trattamento dell'artrite reumatoide
JGHAB, KAWTAR
2023/2024
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by inflammation and progressive degeneration of the joints, significantly impacting patients' quality of life. Current therapies are unable to cure the disease and often present significant side effects. This work explores an innovative approach to RA treatment using chitosan nanoparticles functionalized with vasoactive intestinal peptide (VIP). Chitosan, a natural polysaccharide derived from chitin, is known for its biocompatible and biodegradable properties, making it an ideal candidate for drug delivery. VIP, an endogenous peptide with potent anti-inflammatory and immunomodulatory properties, has shown therapeutic potential in RA. However, its instability in vivo and rapid degradation limit its clinical efficacy. The main objectives of this work were to evaluate the release profile of the peptide from chitosan and to develop and characterize chitosan-VIP nanoparticles produced through electrospray technique. The resulting systems were subjected to studies with cellular models to assess their anti-inflammatory effects and modulation of immune responses. Preliminary results suggest that chitosan nanoparticles enriched with VIP may represent a promising strategy for targeted and sustained RA treatment. Further preclinical and clinical studies will be necessary to confirm the efficacy and safety of this innovative therapeutic platform.File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/72864