Artikel ; Online: Intranasal delivery of a synthetic Entamoeba histolytica vaccine containing adjuvant (LecA + GLA-3 M-052 liposomes): In vitro characterization.
International journal of pharmaceutics
2022 Band 626, Seite(n) 122141
Abstract: Amebiasis, a disease caused by the parasite Entamoeba histolytica, is estimated to cause millions of infections and at least 55,000 deaths globally each year. With no vaccine currently available, there is an urgent need for an accessible means of ... ...
| Abstract | Amebiasis, a disease caused by the parasite Entamoeba histolytica, is estimated to cause millions of infections and at least 55,000 deaths globally each year. With no vaccine currently available, there is an urgent need for an accessible means of stimulating protective mucosal immunity. The objective of this study was to characterize the nasal spray of a novel amebiasis vaccine candidate from a syringe-based liquid atomization device, the Teleflex MAD Nasal™, in both adult and infant nasal airways. Human ergonomic testing was completed to determine realistic actuation parameters. Spray pattern, plume geometry, and droplet size distribution were measured to evaluate reproducibility of free plume characteristics. The Alberta Idealized Nasal Inlet (AINI) and three realistic infant nasal airways were used to determine the in vitro deposition profile in adult and infant airways, respectively. Collectively, in vitro results demonstrated the feasibility of delivering the vaccine candidate to target sites within the nasal airways. Penetration through the nasal airways that could lead to deposition in the lungs was below the limit of quantification for both adult and infant geometries, indicating a low likelihood of adverse events due to lung exposure. These results support continued investigation of intranasal delivery of the synthetic Entamoeba histolytica vaccine. |
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| Mesh-Begriff(e) | Adjuvants, Pharmaceutic ; Adjuvants, Vaccine ; Administration, Intranasal ; Adult ; Aerosols ; Amebiasis ; Entamoeba histolytica ; Humans ; Liposomes ; Nasal Sprays ; Reproducibility of Results ; Vaccines, Synthetic | |||||
| Chemische Substanzen | Adjuvants, Pharmaceutic ; Adjuvants, Vaccine ; Aerosols ; Liposomes ; Nasal Sprays ; Vaccines, Synthetic | |||||
| Sprache | Englisch | |||||
| Erscheinungsdatum | 2022-09-02 | |||||
| Erscheinungsland | Netherlands | |||||
| Dokumenttyp | Journal Article | |||||
| ZDB-ID | 428962-6 | |||||
| ISSN | 1873-3476 ; 0378-5173 | |||||
| ISSN (online) | 1873-3476 | |||||
| ISSN | 0378-5173 | |||||
| DOI | 10.1016/j.ijpharm.2022.122141 | |||||
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| Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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