Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/103247
Author(s): | Sílvia Castro Coelho Sandra Rocha Petras Juzenas Paula Sampaio Gabriela M Almeida Filipe Santos Silva Maria do Carmo Pereira Manuel A. N. Coelho |
Title: | Gold nanoparticle delivery-enhanced proteasome inhibitor effect in adenocarcinoma cells |
Issue Date: | 2013 |
Abstract: | Background: Proteasome inhibition is a current therapeutic strategy used in the treatment of multiple myeloma. Drugs controlling proteasome activity are ideally suited for unidirectional manipulation of cellular pathways such as apoptosis. The first proteasome inhibitor approved in clinics was bortezomib. This drug is currently used in combination with other anticancer agents. Objectives: In this study, the enhancement of bortezomib activity was evaluated using gold nanoparticles coated with poly(ethylene glycol). The uptake mechanism of the gold nanoparticles in pancreatic cell lines, S2-013 and hTERT-HPNE, was assessed by laser scanning confocal microscopy (LSCM). Results: Pancreatic cancer cells internalized the nanoparticles together with the drug in few minutes through the formation of endocytic vesicles. This rapid uptake leads to an increase in the concentration and diffusion of bortezomib in the cytoplasm yielding an increased toxicity on the cells when compared to the drug alone. Conclusion: Gold nanoparticles can be used as effective delivery systems to increasing the permeation and retention of drugs in cancer cells. |
Subject: | Medicina básica Basic medicine |
Scientific areas: | Ciências médicas e da saúde::Medicina básica Medical and Health sciences::Basic medicine |
URI: | https://hdl.handle.net/10216/103247 |
Related Information: | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Projectos de I&DT em Todos os Domínios Científicos/PTDC/QUI-BIQ/115449/2009/Distibuição de biomoleculas através de nanopartículas inorganica/organicas /BIONANO |
Document Type: | Artigo em Revista Científica Internacional |
Rights: | restrictedAccess |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
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93833.pdf Restricted Access | Artigo original publicado | 644.49 kB | Adobe PDF | Request a copy from the Author(s) |
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