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Valero T, Delgado-González A, Unciti-Broceta JD, Cano-Cortés V, Pérez-López AM, Unciti-Broceta A, Sánchez Martín RM. Drug "Clicking" on Cell-Penetrating Fluorescent Nanoparticles for In Cellulo Chemical Proteomics. Bioconjug Chem 2018; 29:3154-3160. [PMID: 30122043 DOI: 10.1021/acs.bioconjchem.8b00481] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Chemical proteomics approaches are widely used to identify molecular targets of existing or novel drugs. This manuscript describes the development of a straightforward approach to conjugate azide-labeled drugs via click chemistry to alkyne-tagged cell-penetrating fluorescent nanoparticles as a novel tool to study target engagement and/or identification inside living cells. A modification of the Baeyer test for alkynes allows monitoring the Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction, guaranteeing the presence of the drug on the solid support. As a proof of concept, the conjugation of the promiscuous kinase inhibitor dasatinib to Cy5-labeled nanoparticles is presented. Dasatinib-decorated fluorescent nanoparticles efficiently inhibited its protein target SRC in vitro, entered cancer cells, and colocalized with SRC in cellulo.
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Affiliation(s)
- Teresa Valero
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics & Molecular Medicine , University of Edinburgh , Edinburgh EH4 2XR , United Kingdom.,GENYO, Centre for Genomics and Oncological Research , Pfizer/University of Granada/Andalusian Regional Government , PTS Granada, Avda. Ilustración 114 , 18016 Granada , Spain.,Department of Medicinal & Organic Chemistry, Faculty of Pharmacy , University of Granada , Campus de Cartuja s/n , 18071 Granada , Spain
| | - Antonio Delgado-González
- GENYO, Centre for Genomics and Oncological Research , Pfizer/University of Granada/Andalusian Regional Government , PTS Granada, Avda. Ilustración 114 , 18016 Granada , Spain.,Department of Medicinal & Organic Chemistry, Faculty of Pharmacy , University of Granada , Campus de Cartuja s/n , 18071 Granada , Spain
| | - Juan Diego Unciti-Broceta
- GENYO, Centre for Genomics and Oncological Research , Pfizer/University of Granada/Andalusian Regional Government , PTS Granada, Avda. Ilustración 114 , 18016 Granada , Spain.,R&D Department , NanoGetic SL , Health Science Technological Park (PTS), Avenida de la Innovación 1, Edificio BIC , 18016 Granada , Spain
| | - Victoria Cano-Cortés
- GENYO, Centre for Genomics and Oncological Research , Pfizer/University of Granada/Andalusian Regional Government , PTS Granada, Avda. Ilustración 114 , 18016 Granada , Spain.,Department of Medicinal & Organic Chemistry, Faculty of Pharmacy , University of Granada , Campus de Cartuja s/n , 18071 Granada , Spain
| | - Ana M Pérez-López
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics & Molecular Medicine , University of Edinburgh , Edinburgh EH4 2XR , United Kingdom
| | - Asier Unciti-Broceta
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics & Molecular Medicine , University of Edinburgh , Edinburgh EH4 2XR , United Kingdom
| | - Rosario M Sánchez Martín
- GENYO, Centre for Genomics and Oncological Research , Pfizer/University of Granada/Andalusian Regional Government , PTS Granada, Avda. Ilustración 114 , 18016 Granada , Spain.,Department of Medicinal & Organic Chemistry, Faculty of Pharmacy , University of Granada , Campus de Cartuja s/n , 18071 Granada , Spain
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Unciti-Broceta JD, Cano-Cortés V, Altea-Manzano P, Pernagallo S, Díaz-Mochón JJ, Sánchez-Martín RM. Number of Nanoparticles per Cell through a Spectrophotometric Method - A key parameter to Assess Nanoparticle-based Cellular Assays. Sci Rep 2015; 5:10091. [PMID: 25976173 PMCID: PMC4432369 DOI: 10.1038/srep10091] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 03/27/2015] [Indexed: 12/23/2022] Open
Abstract
Engineered nanoparticles (eNPs) for biological and biomedical applications are produced from functionalised nanoparticles (NPs) after undergoing multiple handling steps, giving rise to an inevitable loss of NPs. Herein we present a practical method to quantify nanoparticles (NPs) number per volume in an aqueous suspension using standard spectrophotometers and minute amounts of the suspensions (up to 1 μL). This method allows, for the first time, to analyse cellular uptake by reporting NPs number added per cell, as opposed to current methods which are related to solid content (w/V) of NPs. In analogy to the parameter used in viral infective assays (multiplicity of infection), we propose to name this novel parameter as multiplicity of nanofection.
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Affiliation(s)
- Juan D Unciti-Broceta
- 1] Pfizer - Universidad de Granada - Junta de Andalucía Centre for Genomics and Oncological Research (GENYO), Parque Tecnológico de Ciencias de la Salud (PTS), Avenida de la Ilustración 114, 18016 Granada, Spain [2] NanoGetic S. L. Parque Tecnológico Ciencias de la Salud (PTS), Avenida de la Innovación 1, Edificio BIC, 18016 Armilla - Granada (Spain)
| | - Victoria Cano-Cortés
- Pfizer - Universidad de Granada - Junta de Andalucía Centre for Genomics and Oncological Research (GENYO), Parque Tecnológico de Ciencias de la Salud (PTS), Avenida de la Ilustración 114, 18016 Granada, Spain
| | - Patricia Altea-Manzano
- Pfizer - Universidad de Granada - Junta de Andalucía Centre for Genomics and Oncological Research (GENYO), Parque Tecnológico de Ciencias de la Salud (PTS), Avenida de la Ilustración 114, 18016 Granada, Spain
| | - Salvatore Pernagallo
- DestiNAGenomica S.L. Parque Tecnológico Ciencias de la Salud (PTS), Avenida de la Innovación 1, Edificio BIC, 18016 Armilla - Granada (Spain)
| | - Juan J Díaz-Mochón
- Pfizer - Universidad de Granada - Junta de Andalucía Centre for Genomics and Oncological Research (GENYO), Parque Tecnológico de Ciencias de la Salud (PTS), Avenida de la Ilustración 114, 18016 Granada, Spain
| | - Rosario M Sánchez-Martín
- 1] Pfizer - Universidad de Granada - Junta de Andalucía Centre for Genomics and Oncological Research (GENYO), Parque Tecnológico de Ciencias de la Salud (PTS), Avenida de la Ilustración 114, 18016 Granada, Spain [2] Departamento de Química Farmacéutica y Orgánica. University of Granada, Campus de Cartuja s/n, 18017 Granada, Spain
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Jiang L, Ding L, He B, Shen J, Xu Z, Yin M, Zhang X. Systemic gene silencing in plants triggered by fluorescent nanoparticle-delivered double-stranded RNA. NANOSCALE 2014; 6:9965-9. [PMID: 25068243 DOI: 10.1039/c4nr03481c] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
A cationic fluorescence nanoparticle efficiently enters plants with high transfection efficacy. Applying a mixture of G2/dsRNA to the model plant, Arabidopsis root, leads to significant reduction in the expression of important developmental genes and results in apparent phenotypes. This study reports a non-viral gene nanocarrier which triggers gene silencing in plants and leads to systemic phenotypes.
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Affiliation(s)
- Li Jiang
- College of Agronomy and Biotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, China Agricultural University, Beijing 100193, China.
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