Abstract Title:

Targeted Polymeric Nanoparticles Based on Mangiferin for Enhanced Protection of Pancreaticβ-Cells and Type 1 Diabetes Mellitus Efficacy.

Abstract Source:

ACS Appl Mater Interfaces. 2022 Mar 9 ;14(9):11092-11103. Epub 2022 Feb 24. PMID: 35199981

Abstract Author(s):

Mengdi Wang, Zhuoran Zhang, Qingqing Huo, Maolong Wang, Yong Sun, Hongling Liu, Jing Chang, Bin He, Yan Liang

Article Affiliation:

Mengdi Wang


Mangiferin (MGF) is found in many natural plants, such as Rhizoma Anemarrhenae, and has anti-diabetes effects. However, its clinical applications and development are limited by poor solubility and low-concentration enrichment in pancreatic islets. In this paper, targeted polymeric nanoparticles were constructed for MGF delivery with the desired drug loading content (6.86± 0.60%), excellent blood circulation, and missile-like delivery to the pancreas. Briefly, Glucagon-like peptide 1 (GLP-1) as an active targeting agent to the pancreas was immobilized on the block copolymer polyethyleneglycol-polycaprolactone (PEG-PCL) to obtain final GLP-1-PEG-PCL amphiphiles. Spherical MGF-loaded polymeric nanoparticles were acquired from the self-assembly of the targeted GDPP nanoparticles and MGF with a homogeneous size of 158.9 ± 1.7 nm and a negative potential for a good steady state in circulation. In this drug vehicle, GLP-1 acts as the missile vanguard via the GLP-1receptor on the surface of the pancreas for improving the accumulation and efficiency of MGF in the pancreas, the hypoglycemic effect of MGF, and the restorative effect on pancreatic islets, which were investigated. As compared to free MGF, MGF/GDPP nanoparticles appeared to be more concentrated inthe pancreas, with better blood glucose and glucose tolerance, enhanced insulin levels, increased β-cell proliferation, reduced β-cell apoptosis, and islet repair in vivo. This targeted drug delivery system provided a novel strategy and hope for enhancing MGF delivery and anti-diabetes efficacy.

Study Type : In Vitro Study

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