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Open Access Green as soon as Postprint is submitted to ZB.
Ferritin-displayed GLP-1 with improved pharmacological activities and pharmacokinetics.
Mol. Pharm. 17, 1663-1673 (2020)
Glucagon-like peptide-1 (GLP-1) is an incretin (a type of metabolic hormone that stimulates a decrease in blood glucose levels), holding great potential for the treatment of type 2 diabetes mellitus (T2DM). However, its extremely short half-life of 1-2 min hampers any direct clinical application. Here, we describe the application of the heavy chain of human ferritin (HFt) nanocage as a carrier to improve the pharmacological properties of GLP-1. The GLP-HFt was designed by genetic fusion of GLP-1 to the N-terminus of HFt and was expressed in inclusion bodies in E. coli. The refolding process was developed to obtain a soluble GLP-HFt protein. The biophysical properties determined by size-exclusion chromatography (SEC), dynamic light scattering (DLS), circular dichroism (CD), transmission electron microscopy (TEM), and X-ray crystallography verified that the GLP-HFt successfully formed a 24-mer nanocage with GLP-1 displayed on the external surface of HFt. The in vivo pharmacodynamic results demonstrated that the GLP-HFt nanocage retained the bioactivity of natural GLP-1, significantly reduced the blood glucose levels for at least 24 h in a dose-dependent manner, and inhibited food intake for at least 8-10 h. The half-life of the GLP-HFt nanocage was approximately 52 h in mice after subcutaneous injection. The prolonged half-life and sustained control of blood glucose levels indicate that the GLP-HFt nanocage can be further developed for the treatment of T2DM. Meanwhile, the HFt nanocage proves its great potential as a universal carrier that improves the pharmacodynamic and pharmacokinetic properties of a wide range of therapeutic peptides and proteins.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Bioactivities ; Diabetes ; Ferritin ; Glucagon-like Peptide-1 ; Half-life; Glucagon-like Peptide-1; Albumin-binding Domain; Receptor Agonists; Drug-delivery; Half-life; Nanoparticles; Obesity; Liraglutide; Clearance; Proteins
ISSN (print) / ISBN
1543-8384
e-ISSN
1543-8392
Journal
Molecular Pharmaceutics
Quellenangaben
Volume: 17,
Issue: 5,
Pages: 1663-1673
Publisher
American Chemical Society (ACS)
Publishing Place
1155 16th St, Nw, Washington, Dc 20036 Usa
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Structural Biology (STB)