Topical treatment of mild-to-moderate psoriasis with corticosteroids suffers from challenges that include reduced drug bioavailability at the desired site of action. The retention of therapeutics within the epidermis can safely treat skin inflammation, scaling, and erythema associated with psoriasis while avoiding possible side effects associated with systemic treatments. We successfully synthesized and characterized a pH-responsive biodegradable poly-L-glutamic acid (PGA)-fluocinolone acetonide (FLUO) conjugate that allows the controlled release of the FLUO to reduce skin inflammation.
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