Inhaled siRNA nanoparticles targeting IL11 inhibit lung fibrosis and improve pulmonary function post-bleomycin challenge
Interleukin-11 (IL-11) is a profibrotic cytokine essential for the differentiation of fibroblasts into collagen-secreting, actin alpha 2, smooth muscle-positive (ACTA2+) myofibroblasts, driving processes underlying the pathogenesis of idiopathic pulmonary fibrosis (IPF). Here, we developed an inhala...
Main Authors: | , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
NLM (Medline)
2022
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Online Access: | View Fulltext in Publisher |
LEADER | 01906nam a2200217Ia 4500 | ||
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001 | 10.1126-sciadv.abn7162 | ||
008 | 220706s2022 CNT 000 0 und d | ||
020 | |a 23752548 (ISSN) | ||
245 | 1 | 0 | |a Inhaled siRNA nanoparticles targeting IL11 inhibit lung fibrosis and improve pulmonary function post-bleomycin challenge |
260 | 0 | |b NLM (Medline) |c 2022 | |
856 | |z View Fulltext in Publisher |u https://doi.org/10.1126/sciadv.abn7162 | ||
520 | 3 | |a Interleukin-11 (IL-11) is a profibrotic cytokine essential for the differentiation of fibroblasts into collagen-secreting, actin alpha 2, smooth muscle-positive (ACTA2+) myofibroblasts, driving processes underlying the pathogenesis of idiopathic pulmonary fibrosis (IPF). Here, we developed an inhalable and mucus-penetrative nanoparticle (NP) system incorporating siRNA against IL11 (siIL11@PPGC NPs) and investigated therapeutic potential for the treatment of IPF. NPs are formulated through self-assembly of a biodegradable PLGA-PEG diblock copolymer and a self-created cationic lipid-like molecule G0-C14 to enable efficient transmucosal delivery of siIL11. Noninvasive aerosol inhalation hindered fibroblast differentiation and reduced ECM deposition via inhibition of ERK and SMAD2. Furthermore, siIL11@PPGC NPs significantly diminished fibrosis development and improved pulmonary function in a mouse model of bleomycin-induced pulmonary fibrosis without inducing systemic toxicity. This work presents a versatile NP platform for the locally inhaled delivery of siRNA therapeutics and exhibits promising clinical potential in the treatment of numerous respiratory diseases, including IPF. | |
700 | 1 | |a Bai, X. |e author | |
700 | 1 | |a Chen, Q. |e author | |
700 | 1 | |a Gao, M. |e author | |
700 | 1 | |a Ho, W. |e author | |
700 | 1 | |a Li, Z. |e author | |
700 | 1 | |a Xu, X. |e author | |
700 | 1 | |a Zhang, X.-Q. |e author | |
700 | 1 | |a Zhao, G. |e author | |
773 | |t Science advances |