Spatial targeting of fibrosis-promoting macrophages with nanoscale metal-organic frameworks for idiopathic pulmonary fibrosis therapy

Copyright © 2023. Published by Elsevier Ltd..

Targeted delivery of therapeutic drugs to fibrosis-promoting macrophages (FPMs) holds promise as a challenging yet effective approach for the treatment of idiopathic pulmonary fibrosis (IPF). Here, nanocarriers composed of Mn-curcumin metal-organic frameworks (MOFs) were utilized to deliver the immune inhibitor BLZ-945 to the lungs, with the goal of depleting fibrosis-promoting macrophages (FPMs) from fibrotic lung tissues. FPM targeting was achieved by functionalizing the nanocarrier surface with an M2-like FPM binding peptide (M2pep). As a result, significant therapeutic benefits were observed through the successful depletion of approximately 80 % of the M2-like macrophages (FPMs) in a bleomycin-induced fibrosis mouse model treated with the designed M2-like FPM-targeting nanoparticle (referred to as M2NP-BLZMn-Cur). Importantly, the released Mn2+ and curcumin after the degradation of M2NP-BLZ@Mn-Cur accumulated in the fibrotic lung tissue, which can alleviate inflammation and oxidative stress reactions, thereby further improving IPF therapy. This study presents a novel strategy with promising prospects for molecular-targeted fibrosis therapy. STATEMENT OF SIGNIFICANCE: Metal-organic frameworks (MOFs)- based nanocarriers equipped with both fibrosis-promoting macrophage (FPM)-specific targeting ability and therapeutic drugs are appealing for pulmonary fibrosis treatment. Here, we prepared M2pep (an M2-like FPM binding peptide)-modified and BLZ945 (a small molecule inhibitor of CSF1/CSF-1R axis)-loaded Mn-curcumin MOF nanoparticles (M2NP-BLZ@Mn-Cur) for pulmonary fibrosis therapy. The functionalized M2NP-BLZ@Mn-Cur nanoparticles can be preferentially taken up by FPMs, resulting in their depletion from fibrotic lung tissues. In addition, Mn2+and curcumin released from the nanocarriers have anti-inflammation and immune regulation effects, which further enhance the antifibrotic effect of the nanoparticles.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:174

Enthalten in:

Acta biomaterialia - 174(2024) vom: 15. Jan., Seite 372-385

Sprache:

Englisch

Beteiligte Personen:

Hou, Jiwei [VerfasserIn]
Cong, Yiyang [VerfasserIn]
Ji, Jie [VerfasserIn]
Liu, Yuxin [VerfasserIn]
Hong, Hao [VerfasserIn]
Han, Xiaodong [VerfasserIn]

Links:

Volltext

Themen:

Curcumin
Fibrosis-promoting macrophages
IT942ZTH98
Idiopathic pulmonary fibrosis
Journal Article
Metal-Organic Frameworks
Mn-curcumin metal-organic frameworks
Molecular-targeted fibrosis therapy
Peptides

Anmerkungen:

Date Completed 02.01.2024

Date Revised 02.01.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.actbio.2023.12.006

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM365630365