Staff member

Giuseppe Battaglia

Group Leader / ICREA Research Professor
Molecular Bionics
+34 934034664/33745
Staff member publications

Gouveia, Virgínia M., Rizzello, Loris, Nunes, Claudia, Poma, Alessandro, Ruiz-Perez, Lorena, Oliveira, António, Reis, Salette, Battaglia, Giuseppe, (2019). Macrophage targeting pH responsive polymersomes for glucocorticoid therapy Pharmaceutics 11, (11), 614

Glucocorticoid (GC) drugs are the cornerstone therapy used in the treatment of inflammatory diseases. Here, we report pH responsive poly(2-methacryloyloxyethyl phosphorylcholine)–poly(2-(diisopropylamino)ethyl methacrylate) (PMPC–PDPA) polymersomes as a suitable nanoscopic carrier to precisely and controllably deliver GCs within inflamed target cells. The in vitro cellular studies revealed that polymersomes ensure the stability, selectivity and bioavailability of the loaded drug within macrophages. At molecular level, we tested key inflammation-related markers, such as the nuclear factor-κB, tumour necrosis factor-α, interleukin-1β, and interleukin-6. With this, we demonstrated that pH responsive polymersomes are able to enhance the anti-inflammatory effect of loaded GC drug. Overall, we prove the potential of PMPC–PDPA polymersomes to efficiently promote the inflammation shutdown, while reducing the well-known therapeutic limitations in GC-based therapy.

Keywords: Inflammation, Macrophages, Glucocorticoid, Polymersomes