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Abstract Title:

Lycium barbarum lipid-based edible nanoparticles protect against experimental colitis.

Abstract Source:

Colloids Surf B Biointerfaces. 2019 Dec 23:110747. Epub 2019 Dec 23. PMID: 31924469

Abstract Author(s):

Menghang Zu, Heliang Song, Jiabin Zhang, Qiubing Chen, Shiqin Deng, Brandon S B Canup, Yi Yuan, Bo Xiao

Article Affiliation:

Menghang Zu

Abstract:

Edible plant-derived nanoparticles (NPs) have attracted increasing attention in the treatment of ulcerative colitis (UC). Lycium barbarum (LB), a popular functional fruit, possesses various biological functions. Here, fat-soluble contents were extracted from LB and further processed into LB lipid-derived NPs (LBLNs). The resultant NPs had an average hydrodynamic diameter around 189.2 nm, narrow size distribution (polydispersity index = 0.2), and negative surface charge (-34.9 mV). Moreover, they could be efficiently taken up by UC therapy-related target cells (macrophages), and over 69.0 % of macrophages internalized LBLNs after 4 h co-incubation. We further found from the in vitro results that LBLNs had strong capacities to inhibit the secretion of the main pro-inflammatory cytokines (TNF-α and IL-12) and up-regulate the expression of the typical anti-inflammatory factor (IL-10). Finally, mice experiments confirmed that LBLNs after oral administration could specifically accumulate into inflamed colon tissues, and further attenuate UC-relevant symptoms (e.g., bodyweight loss, colon shortening, increase of spleen weight, and histopathological appearance, as well as ulceration). Collectively, this study demonstrates the excellent therapeutic outcomes of LBLNs against UC and provides a promising edible nanotherapeutic for UC treatment.

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