1
|
Re F, Giorgetti S, Biondi B, Scapin S, Mantegazza F, Cassina V, Sesana SM, Rizzi L, Eberini I, Palazzolo L, Beeg M, Gobbi M, Sardina M, Masserini M. Amyposomes, a nanotechnological chaperone with anti-amyloidogenic activity. Ann Med 2023; 55:2205659. [PMID: 37143345 PMCID: PMC10165933 DOI: 10.1080/07853890.2023.2205659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/06/2023] Open
Abstract
AIM The effect of liposomes bi-functionalized with phosphatidic acid and with a synthetic peptide derived from human apolipoprotein E has been evaluated on the aggregation features of different amyloidogenic proteins: human Amyloid β1-40 (Aβ1-40), transthyretin (TTR) variant S52P, human β2microglobulin (β2m) variants ΔN6 and D76N, Serum Amyloid A (SAA). METHODS The formation of fibrillar aggregates of the proteins was investigated by ThioflavinT fluorescence assay and validated by Atomic Force Microscopy. RESULTS The results show that liposomes are preventing the transition of non-aggregated forms to the fibrillar state, with stronger effects on Aβ1-40, β2m ΔN6 and SAA. Liposomes also induce disaggregation of the amyloid aggregates of all the proteins investigated, with stronger effects on Aβ1-40, β2 D76N and TTR.SPR assays show that liposomes bind Aβ1-40 and SAA aggregates with high affinity (KD in the nanomolar range) whereas binding to TTR aggregates showed a lower affinity (KD in the micromolar range). Aggregates of β2m variants showed both high and low affinity binding sites. Computed Structural analysis of protein fibrillar aggregates and considerations on the multidentate features of liposomes allow to speculate a common mechanism of action, based on binding the β-stranded peptide regions responsible for the amyloid formation. CONCLUSION Thus, multifunctional liposomes perform as pharmacological chaperones with anti-amyloidogenic activity, with a promising potential for the treatment of a number of protein-misfolding diseases.Key messageAmyloidosis is a group of diseases, each due to a specific protein misfolding.Anti-amyloidogenic nanoparticles have been gaining the utmost importance as a potential treatment for protein misfolding disorders.Liposomes bi-functionalized with phosphatidic acid and with a synthetic peptide derived from human apolipoprotein E showed anti-amyloidogenic activity.
Collapse
Affiliation(s)
- Francesca Re
- School of Medicine and Surgery, University of Milano-Bicocca, Vedano al Lambro, Italy
| | - Sofia Giorgetti
- Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Pavia, Italy
| | - Barbara Biondi
- Padova Unit, CNR, Department of Chemistry, Institute of Biomolecular Chemistry, University of Padova, Padova, Italy
| | - Stefano Scapin
- Padova Unit, CNR, Department of Chemistry, Institute of Biomolecular Chemistry, University of Padova, Padova, Italy
| | - Francesco Mantegazza
- School of Medicine and Surgery, University of Milano-Bicocca, Vedano al Lambro, Italy
| | - Valeria Cassina
- School of Medicine and Surgery, University of Milano-Bicocca, Vedano al Lambro, Italy
| | - Silvia Maria Sesana
- School of Medicine and Surgery, University of Milano-Bicocca, Vedano al Lambro, Italy
| | - Laura Rizzi
- School of Medicine and Surgery, University of Milano-Bicocca, Vedano al Lambro, Italy
| | - Ivano Eberini
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Luca Palazzolo
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Marten Beeg
- Laboratory of Pharmacodynamics and Pharmacokinetics, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Marco Gobbi
- Laboratory of Pharmacodynamics and Pharmacokinetics, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | | | - Massimo Masserini
- School of Medicine and Surgery, University of Milano-Bicocca, Vedano al Lambro, Italy
| |
Collapse
|