%0 Journal Article %T Targeting the Skin: The Study of a Bottlebrush Polymer-Antisense Oligonucleotide Conjugate in a Psoriasis Mouse Model. %A Fang Y %A Cai J %A Fei F %A Zhong T %A Ren M %A Wang D %A Li Y %A Zhang K %J Small %V 0 %N 0 %D 2024 Aug 14 %M 39140277 %F 15.153 %R 10.1002/smll.202403949 %X The investigation of gene regulation therapeutics for the treatment of skin-related diseases is rarely explored in part due to inefficient systemic delivery. In this study, a bottlebrush polymer-antisense oligonucleotide (ASO) conjugate, termed pacDNA, designed to target IL-17 receptor A (IL-17RA), which is involved in psoriasis pathogenesis is presented. Systemic administration of pacDNA led to its accumulation in epidermis, dermis, and hypodermis of mouse skin, reduced IL-17RA gene expression in skin, and significantly reversed the development of imiquimod (IMQ)-induced psoriasis in a mouse model. These findings highlight the potential of the pacDNA as a promising nanoconstruct for systemic oligonucleotide delivery to the skin and for treating psoriasis and other skin-related disorders through systemic administration.