Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Medicine and Health Sciences
Intra-Articular Interleukin-1 Receptor Antagonist (Il1-Ra) Microspheres For Posttraumatic Osteoarthritis: In Vitro Biological Activity And In Vivo Disease Modifying Effect, Khaled A. Elsaid, Anand Ubhe, Ziyad Shaman, Gerard D'Souza
Intra-Articular Interleukin-1 Receptor Antagonist (Il1-Ra) Microspheres For Posttraumatic Osteoarthritis: In Vitro Biological Activity And In Vivo Disease Modifying Effect, Khaled A. Elsaid, Anand Ubhe, Ziyad Shaman, Gerard D'Souza
Pharmacy Faculty Articles and Research
Background: Interleukin-1 receptor antagonist (IL-1 ra) can be disease-modifying in posttraumatic osteoarthritis (PTOA). One limitation is its short joint residence time. We hypothesized that IL-1 ra encapsulation in poly (lactide-co-glycolide) (PLGA) microspheres reduces IL-1 ra systemic absorption and provides an enhanced anti-PTOA effect.
Methods: IL-1 ra release kinetics and biological activity: IL-1 ra encapsulation into PLGA microsphere was performed using double emulsion solvent extraction. Lyophilized PLGA IL-1 ra microspheres were resuspended in PBS and supernatant IL-1 ra concentrations were assayed. The biological activity of IL-1 ra from PLGA IL-1 ra microspheres was performed using IL-1 induced lymphocyte proliferation …