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Giudice V, Scala P, Lamparelli EP, Gorrese M, Serio B, Bertolini A, Picone F, Della Porta G, Selleri C. Biomimetic proteolipid vesicles for reverting GPI deficiency in paroxysmal nocturnal hemoglobinuria. iScience 2024; 27:109021. [PMID: 38361629 PMCID: PMC10867660 DOI: 10.1016/j.isci.2024.109021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/26/2023] [Accepted: 01/22/2024] [Indexed: 02/17/2024] Open
Abstract
Nano-vesicular carriers are promising tissue-specific drug delivery platforms. Here, biomimetic proteolipid vesicles (BPLVs) were used for delivery of glycosylphosphatidylinositol (GPI)-anchored proteins to GPI deficient paroxysmal nocturnal hemoglobinuria (PNH) cells. BPLVs were assembled as single unilamellar monodispersed (polydispersity index, 0.1) negatively charged (ζ-potential, -28.6 ± 5.6 mV) system using microfluidic technique equipped with Y-shaped chip. GPI-anchored and not-GPI proteins on BPLV surface were detected by flow cytometry. Peripheral blood mononuclear cells (PBMCs) from healthy and PNH subjects were treated with BPLVs (final concentration, 0.5 mg/mL), and cells displayed an excellent protein uptake, documented by flow cytometry immunophenotyping and confocal microscopy. BPLV-treated cells stressed with complement components showed an increased resistance to complement-mediated lysis, both healthy and PNH PBMCs. In conclusion, BPLVs could be effective nanocarriers for protein transfer to targeted cells to revert protein deficiency, like in PNH disease. However, further in vivo studies are required to validate our preclinical in vitro results.
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Affiliation(s)
- Valentina Giudice
- Department of Medicine, Surgery, and Dentistry, University of Salerno, Baronissi, Italy
- Hematology and Transplant Center, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, Salerno, Italy
| | - Pasqualina Scala
- Department of Medicine, Surgery, and Dentistry, University of Salerno, Baronissi, Italy
| | - Erwin P. Lamparelli
- Department of Medicine, Surgery, and Dentistry, University of Salerno, Baronissi, Italy
| | - Marisa Gorrese
- Department of Medicine, Surgery, and Dentistry, University of Salerno, Baronissi, Italy
| | - Bianca Serio
- Hematology and Transplant Center, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, Salerno, Italy
| | - Angela Bertolini
- Department of Medicine, Surgery, and Dentistry, University of Salerno, Baronissi, Italy
| | - Francesca Picone
- Department of Medicine, Surgery, and Dentistry, University of Salerno, Baronissi, Italy
| | - Giovanna Della Porta
- Department of Medicine, Surgery, and Dentistry, University of Salerno, Baronissi, Italy
- Interdepartment Centre BIONAM, University of Salerno, Fisciano, Italy
| | - Carmine Selleri
- Department of Medicine, Surgery, and Dentistry, University of Salerno, Baronissi, Italy
- Hematology and Transplant Center, University Hospital “San Giovanni di Dio e Ruggi d’Aragona”, Salerno, Italy
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Ortolan E, Tibaldi EV, Ferranti B, Lavagno L, Garbarino G, Notaro R, Luzzatto L, Malavasi F, Funaro A. CD157 plays a pivotal role in neutrophil transendothelial migration. Blood 2006; 108:4214-22. [PMID: 16917007 DOI: 10.1182/blood-2006-04-017160] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Abstract
Paracellular diapedesis, a key step in leukocyte recruitment to the site of inflammation, occurs at endothelial junctions and is regulated by highly coordinated interactions between leukocytes and endothelium. We found that CD157, a glycosylphosphatidylinositol-anchored ectoenzyme belonging to the NADase/ADP-ribosyl cyclase family, plays a crucial role for neutrophil diapedesis, because its ligation with specific monoclonal antibodies (both on neutrophils or endothelial cells) results in altered neutrophil movement on the apical surface of endothelium and, ultimately, in loss of diapedesis. Real-time microscopy revealed that CD157 behaves as a sort of compass during the interaction between neutrophils and endothelial cells; indeed, following CD157 ligation, neutrophils appear disoriented, meandering toward junctions where they eventually stop without transmigrating. These findings are relevant in vivo because CD157-deficient neutrophils obtained from patients with paroxysmal nocturnal hemoglobinuria are characterized by a severely impaired diapedesis.
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Affiliation(s)
- Erika Ortolan
- Laboratory of Immunogenetics, Department of Genetics, Biology and Biochemistry, University of Torino, Medical School, Via Santena 19, 10126 Torino, Italy
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Luzzatto L. Paroxysmal nocturnal hemoglobinuria: an acquired X-linked genetic disease with somatic-cell mosaicism. Curr Opin Genet Dev 2006; 16:317-22. [PMID: 16650759 DOI: 10.1016/j.gde.2006.04.015] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2006] [Accepted: 04/18/2006] [Indexed: 12/30/2022]
Abstract
Paroxysmal nocturnal hemoglobinuria (PNH) is a severe hemolytic anemia caused by an intrinsic abnormality of the red blood cells that makes them exceedingly susceptible to the lytic action of activated complement (C). This abnormality results from a mutation in the PIG-A gene on Xp22. Given that the mutation is not inherited but is somatically acquired by a hematopoietic stem cell, it creates two populations of blood cells: normal cells and PNH cells. The clinical expression of PNH depends on the relative and absolute expansion of the PNH cell population, which probably depends, in turn, on a paradoxical growth advantage conferred to it by the existence in the patients of an autoimmune process that exerts negative selection against the 'normal' hematopoietic stem cells.
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Affiliation(s)
- Lucio Luzzatto
- University of Genova Scientific Director Istituto Toscano Tumori, Via Taddeo Alderotti 26N, 50139 Firenze, Italy.
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