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Sanmartín I, Sendra L, Moret I, Herrero MJ, Aliño SF. Multicompartmental Lipopolyplex as Vehicle for Antigens and Genes Delivery in Vaccine Formulations. Pharmaceutics 2021; 13:pharmaceutics13020281. [PMID: 33669785 PMCID: PMC7922173 DOI: 10.3390/pharmaceutics13020281] [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: 12/29/2020] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 11/16/2022] Open
Abstract
Vector design and its characterization is an area of great interest in current vaccine research. In this article, we have formulated and characterized a multicompartmental lipopolyplex, which associates multiple liposomes and polyplexes in the same complex. These particles allow the simultaneous delivery of lipid or water-soluble antigens associated with genes to the same cell, in much higher amounts than conventional lipopolyplexes. The vector characterization and optimization were carried out using liposomes with entrapped carboxyfluorescein and adapted electrophoretic assays. Two types of lipopolyplexes (containing hydrophilic or lipophilic antigens) were employed to evaluate their interest in vaccination. The lipopolyplex loaded with an extract of water-soluble melanoma proteins proved to efficiently induce humoral response in murine melanoma model, increasing the levels of IgM and IgG. The specificity of the immune response induced by the lipopolyplex was demonstrated in mice with the lipopolyplex containing the GD3 ganglioside lipid antigen, abundant in melanoma cells. The levels of anti-GD3 IgG increased markedly without modifying the expression of humoral antibodies against other gangliosides.
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Affiliation(s)
- Isaías Sanmartín
- Faculty of Veterinary and Experimental Sciences, Universidad Católica de Valencia, 46001 Valencia, Spain;
- Pharmacology Department, Faculty of Medicine, Universidad de Valencia, 46010 Valencia, Spain; (L.S.); (I.M.); (M.J.H.)
| | - Luis Sendra
- Pharmacology Department, Faculty of Medicine, Universidad de Valencia, 46010 Valencia, Spain; (L.S.); (I.M.); (M.J.H.)
- Pharmacogenetics Unit, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain
| | - Inés Moret
- Pharmacology Department, Faculty of Medicine, Universidad de Valencia, 46010 Valencia, Spain; (L.S.); (I.M.); (M.J.H.)
- Inflammatory Bowel Disease Research Group, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain
| | - María José Herrero
- Pharmacology Department, Faculty of Medicine, Universidad de Valencia, 46010 Valencia, Spain; (L.S.); (I.M.); (M.J.H.)
- Pharmacogenetics Unit, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain
| | - Salvador F. Aliño
- Pharmacology Department, Faculty of Medicine, Universidad de Valencia, 46010 Valencia, Spain; (L.S.); (I.M.); (M.J.H.)
- Pharmacogenetics Unit, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain
- Clinical Pharmacology Unit, Hospital Universitario y Politécnico La Fe, 46026 Valencia, Spain
- Correspondence: ; Tel.: +34-963-864-972
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Whateley TL. Literature Alerts. Drug Deliv 2008. [DOI: 10.3109/10717549609031183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Moret-Tatay I, Díaz J, Marco FM, Crespo A, Aliño SF. Complete tumor prevention by engineered tumor cell vaccines employing nonviral vectors. Cancer Gene Ther 2004; 10:887-97. [PMID: 14712315 DOI: 10.1038/sj.cgt.7700646] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We report that 100% mice survival after tumor challenge is achieved with cytokine-engineered cells employing nonviral lipoplexes and without using viral vectors. We describe this effect with cytokine-secreting tumor cell vaccines, based on cell clones or fresh transfected cells. Tumor cells were transfected with murine granulocyte-macrophage colony-stimulating factor (GM-CSF) or IL-4 plasmids employing the cationic lipid DOTAP, were irradiated (150 Gy) and kept frozen until use. The transfection efficacy was analyzed by qRT-PCR and flow cytometry. Vaccination induced potent antitumor rejection, resulting in 100% mice survival. Furthermore, the antitumor immunity was long lasting, since a two-fold survival delay was observed in mice after tumor rechallenge (6 months later). While cell clones secreting GM-CSF were the most effective in wild-type tumor cell rejection, little or no effect was observed with clones secreting IL-4. We found similar antitumor efficacy employing fresh transfected cells by nonviral procedures, demonstrating that cells genetically modified by nonviral vectors (both clones and fresh transfected cells) are a safe and efficient tool for antitumor vaccines. These vaccines allow us to achieve the highest antitumor efficacy based on nonviral gene therapy techniques. In addition, the vaccination success with fresh transfected cells simplifies the procedure and provides new insights into the clinical application of nonviral gene therapy procedures.
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Affiliation(s)
- Inés Moret-Tatay
- Grupo de Terapia Génica, Departamento de Farmacología, Facultad de Medicina, Universitat de València, Avda de Blasco Ibáñez no. 15, 46010 Valencia, Spain
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Whateley TL. Literature Alerts. Drug Deliv 1996; 3:201-18. [PMID: 26790917 DOI: 10.3109/10717549609029451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T L Whateley
- a Department of Pharmaceutical Sciences, University of Strathclyde, Royal College, 204 George Street, Glasgow, G1 1XW, Scotland, UK
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