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Royo-Rubio E, Rodríguez-Izquierdo I, Moreno-Domene M, Lozano-Cruz T, de la Mata FJ, Gómez R, Muñoz-Fernández MA, Jiménez JL. Promising PEGylated cationic dendrimers for delivery of miRNAs as a possible therapy against HIV-1 infection. J Nanobiotechnology 2021; 19:158. [PMID: 34049570 PMCID: PMC8161934 DOI: 10.1186/s12951-021-00899-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 05/18/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND The appearance of resistance against new treatments and the fact that HIV-1 can infect various cell types and develop reservoirs and sanctuaries makes it necessary to develop new therapeutic approaches to overcome those failures. RESULTS Studies of cytotoxicity, genotoxicity, complexes formation, stability, resistance, release and particle size distribution confirmed that G2-SN15-PEG, G3-SN31-PEG, G2-SN15-PEG-FITC and G3-SN31-PEG-FITC dendrimers can form complexes with miRNAs being biocompatible, stable and conferring protection to these nucleic acids. Confocal microscopy and flow cytometry showed effective delivery of these four dendrimers into the target cells, confirming their applicability as delivery systems. Dendriplexes formed with the dendrimers and miRNAs significantly inhibited HIV-1 infection in PBMCs. CONCLUSIONS These dendrimers are efficient delivery systems for miRNAs and they specifically and significantly improved the anti-R5-HIV-1 activity of these RNA molecules.
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Affiliation(s)
- E Royo-Rubio
- Laboratorio InmunoBiología Molecular, Hospital General Universitario Gregorio Marañón (HGUGM), Instituto Investigación Sanitaria Gregorio Marañón (IiSGM), Spanish HIV HGM BioBanco, Madrid, Spain
- Plataforma de Laboratorio (Inmunología), HGUGM, IiSGM, Spanish HIV HGM BioBank, Madrid, Spain
| | - I Rodríguez-Izquierdo
- Laboratorio InmunoBiología Molecular, Hospital General Universitario Gregorio Marañón (HGUGM), Instituto Investigación Sanitaria Gregorio Marañón (IiSGM), Spanish HIV HGM BioBanco, Madrid, Spain
- Plataforma de Laboratorio (Inmunología), HGUGM, IiSGM, Spanish HIV HGM BioBank, Madrid, Spain
| | - M Moreno-Domene
- Laboratorio Dosimetría Biológica, HGUGM, IiSGM, Madrid, Spain
| | - T Lozano-Cruz
- Departmento Química Orgánica Y Química Inorgánica E Instituto de Investigación Química "Andrés M. del Río″ (IQAR), Universidad de Alcalá (IRYCIS), Campus Universitario, 28871, Madrid, Spain
- Networking Research Center On Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN, Madrid, Spain
| | - F J de la Mata
- Departmento Química Orgánica Y Química Inorgánica E Instituto de Investigación Química "Andrés M. del Río″ (IQAR), Universidad de Alcalá (IRYCIS), Campus Universitario, 28871, Madrid, Spain
- Networking Research Center On Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN, Madrid, Spain
| | - R Gómez
- Departmento Química Orgánica Y Química Inorgánica E Instituto de Investigación Química "Andrés M. del Río″ (IQAR), Universidad de Alcalá (IRYCIS), Campus Universitario, 28871, Madrid, Spain
- Networking Research Center On Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN, Madrid, Spain
| | - M A Muñoz-Fernández
- Laboratorio InmunoBiología Molecular, Hospital General Universitario Gregorio Marañón (HGUGM), Instituto Investigación Sanitaria Gregorio Marañón (IiSGM), Spanish HIV HGM BioBanco, Madrid, Spain.
| | - J L Jiménez
- Plataforma de Laboratorio (Inmunología), HGUGM, IiSGM, Spanish HIV HGM BioBank, Madrid, Spain.
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