



@article {3304,
	title = {Mad2 checkpoint gene silencing using epidermal growth factor receptor-targeted chitosan nanoparticles in non-small cell lung cancer model},
	journal = {Molecular Pharmaceutics},
	volume = {11},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {3515 - 3527},
	abstract = {RNA interference has emerged as a powerful strategy in cancer therapy because it allows silencing of specific genes associated with tumor progression and resistance. Mad2 is an essential mitotic checkpoint component required for accurate chromosome segregation during mitosis, and its complete abolition leads to cell death. We have developed an epidermal growth factor receptor (EGFR)-targeted chitosan system for silencing the Mad2 gene as a strategy to efficiently induce cell death in EGFR overexpressing human A549 non-small cell lung cancer cells. Control and EGFR-targeted chitosan nanoparticles loaded with small interfering RNAs (siRNAs) against Mad2 were formulated and characterized for size, charge, morphology, and encapsulation efficiency. Qualitative and quantitative intracellular uptake studies by confocal imaging and flow cytometry, respectively, showed time-dependent enhanced and selective intracellular internalization of EGFR-targeted nanoparticles compared to nontargeted system. Targeted nanoparticles showed nearly complete depletion of Mad2 expression in A549 cells contrasting with the partial depletion in the nontargeted system. Accordingly, Mad2-silencing-induced apoptotic cell death was confirmed by cytotoxicity assay and flow cytometry. Our results demonstrate that EGFR-targeted chitosan loaded with Mad2 siRNAs is a potent delivery system for selective killing of cancer cells.},
	keywords = {chitosan nanoparticles, Epidermal growth factor receptor, Mad2 gene, non-small cell lung cancer, RNA interference, tumor targeting},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84908009342\&partnerID=40\&md5=bc0130ca0bcdb576b7de6801c3517e93},
	author = {Nascimento, A.V. and Singh, A. and Bousbaa, H. and Ferreira, D. and Sarmento, B. and Amiji, M.M.}
}
@article {3267,
	title = {Rescue of wild-type E-cadherin expression from nonsense-mutated cancer cells by a suppressor-tRNA},
	journal = {European Journal of Human Genetics},
	volume = {22},
	year = {2014},
	note = {Export Date: 21 November 2014},
	month = {2014},
	pages = {1085 - 1092},
	abstract = {Hereditary diffuse gastric cancer (HDGC) syndrome, although rare, is highly penetrant at an early age, and is severe and incurable because of ineffective screening tools and therapy. Approximately 45\% of HDGC families carry germline CDH1/E-cadherin alterations, 20\% of which are nonsense leading to premature protein truncation. Prophylactic gastrectomy is the only recommended approach for all asymptomatic CDH1 mutation carriers. Suppressor-tRNAs can replace premature stop codons (PTCs) with a cognate amino acid, inducing readthrough and generating full-length proteins. The use of suppressor-tRNAs in HDGC patients could therefore constitute a less invasive therapeutic option for nonsense mutation carriers, delaying the development of gastric cancer. Our analysis revealed that 23/108 (21.3\%) of E-cadherin-mutant families carried nonsense mutations that could be potentially corrected by eight suppressor-tRNAs, and arginine was the most frequently affected amino acid. Using site-directed mutagenesis, we developed an arginine suppressor-tRNA vector to correct one HDGC nonsense mutation. E-cadherin-deficient cell lines were transfected with plasmids carrying simultaneously the suppressor-tRNA and wild-type or mutant CDH1 mini-genes. RT-PCR, western blot, immunofluorescence, flow cytometry and proximity ligation assay (PLA) were used to establish the model, and monitor mRNA and protein expression and function recovery from CDH1 vectors. Cells expressing a CDH1 mini-gene, carrying a nonsense mutation and the suppressor-tRNA, recovered full-length E-cadherin expression and its correct localization and incorporation into the adhesion complex. This is the first demonstration of functional recovery of a mutated causative gene in hereditary cancer by cognate amino acid replacement with suppressor-tRNAs. Of the HDGC families, 21.3\% are candidates for correction with suppressor-tRNAs to potentially delay cancer onset. {\textcopyright} 2014 Macmillan Publishers Limited. All rights reserved.},
	keywords = {hereditary diffuse gastric cancer (HDGC), nonsense suppression, Premature termination codon (PTC), Suppressor-tRNA},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84906269658\&partnerID=40\&md5=2feed844660a13385857a7e5d4470a2b},
	author = {Bordeira-Carri{\c c}o, R. and Ferreira, D. and Mateus, D.D. and Pinheiro, H. and P{\^e}go, A.P. and Santos, M.A.S. and Oliveira, C.}
}
@article {2837,
	title = {Development and validation method for simultaneous quantification of phenolic compounds in natural extracts and nanosystems},
	journal = {Phytochemical Analysis},
	volume = {24},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {638 - 644},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84886723210\&partnerID=40\&md5=eb1de8e3010b22c26b7ddd2e09eef6a7},
	author = {Da Silva, S.B. and Oliveira, A. and Ferreira, D. and Sarmento, B. and Pintado, M.}
}
@article {2845,
	title = {Effect of freeze-drying, cryoprotectants and storage conditions on the stability of secondary structure of insulin-loaded solid lipid nanoparticles},
	journal = {International Journal of Pharmaceutics},
	volume = {456},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {370 - 381},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84886730036\&partnerID=40\&md5=2214d57803df6679f944d2ebba4fa477},
	author = {Soares, S. and Fonte, P. and Costa, A. and Andrade, J. and Seabra, V. and Ferreira, D. and Reis, S. and Sarmento, B.}
}
@article {2873,
	title = {Establishment of a triple co-culture in vitro cell models to study intestinal absorption of peptide drugs},
	journal = {European Journal of Pharmaceutics and Biopharmaceutics},
	volume = {83},
	year = {2013},
	note = {Cited By (since 1996):4Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {427 - 435},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84875219051\&partnerID=40\&md5=7e18e0b0ec3428fe07eee3fa109ba607},
	author = {Antunes, F. and Andrade, F. and Ara{\'u}jo, F. and Ferreira, D. and Sarmento, B.}
}
@article {2863,
	title = {Hydrolyzed galactomannan-modified nanoparticles and flower-like polymeric micelles for the active targeting of rifampicin to macrophages},
	journal = {Journal of Biomedical Nanotechnology},
	volume = {9},
	year = {2013},
	note = {Cited By (since 1996):1Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {1076 - 1087},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84877815633\&partnerID=40\&md5=d4bbcc67f9930d53201ec08dbcfce826},
	author = {Moretton, M.A. and Chiappetta, D.A. and Andrade, F. and Das Neves, J. and Ferreira, D. and Sarmento, B. and Sosnik, A.}
}
@article {2851,
	title = {Nanotechnology and pulmonary delivery to overcome resistance in infectious diseases},
	journal = {Advanced Drug Delivery Reviews},
	volume = {65},
	year = {2013},
	note = {Export Date: 12 December 2013Source: Scopus},
	month = {2013///},
	pages = {1816 - 1827},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84888198111\&partnerID=40\&md5=52e53a72fbb5f199ac2416a061eeb409},
	author = {Andrade, F. and Rafael, D. and Videira, M. and Ferreira, D. and Sosnik, A. and Sarmento, B.}
}
@booklet {2176,
	title = {Brain delivery of camptothecin by means of solid lipid nanoparticles: Formulation design, in vitro and in vivo studies},
	howpublished = {International Journal of PharmaceuticsInt. J. Pharm.},
	volume = {439},
	year = {2012},
	note = {Export Date: 21 November 2012Source: ScopusArticle in PressCODEN: IJPHDdoi: 10.1016/j.ijpharm.2012.09.054Language of Original Document: EnglishCorrespondence Address: Martins, S.; Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences (LTF/CICF), Faemail: susana.martins@ff.up.pt},
	month = {2012///},
	pages = {49 - 62},
	abstract = {For the purpose of brain delivery upon intravenous injection, formulations of camptothecin-loaded solid lipid nanoparticles (SLN), prepared by hot high pressure homogenisation, were designed. Incorporation of camptothecin in the hydrophobic and acidic environment of SLN matrix was chosen to stabilise the lactone ring, which is essential for its antitumour activity, and for avoiding premature loss of drug on the way to target camptothecin to the brain.A multivariate approach was used to assess the influence of the qualitative and quantitative composition on the physicochemical properties of camptothecin-loaded SLN in comparison to plain SLN. Mean particle sizes of <=200. nm, homogenous size distributions and high encapsulation efficiencies (>90\%) were achieved for the most suitable formulations. In vitro release studies in plasma, showed a prolonged release profile of camptothecin from SLN, confirming the physical stability of the particles under physiological pH. A higher affinity of the SLN to the porcine brain capillary endothelial cells (BCEC) was shown in comparison to macrophages. MTT studies in BCEC revealed a moderate decrease in the cell viability of camptothecin, when incorporated in SLN compared to free camptothecin in solution. In vivo studies in rats showed that fluorescently labelled SLN were detected in the brain after i.v. administration. This study indicates that the camptothecin-loaded SLN are a promising drug brain delivery system worth to explore further for brain tumour therapy. {\textcopyright} 2012 Elsevier B.V.},
	keywords = {Brain capillary endothelial cells (BCEC), Brain delivery, Camptothecin, Multivariate analysis, Solid lipid nanoparticles (SLN), Surfactants},
	isbn = {03785173 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84867836553\&partnerID=40\&md5=74d025ee54b5f6569263167e0e4bcfd0},
	author = {Martins, S. and Tho, I. and Reimold, I. and Fricker, G. and Souto, E. and Ferreira, D. and Brandl, M.}
}
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	volume = {8},
	year = {2012},
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},
	month = {2012///},
	pages = {607 - 621},
	abstract = {In vitro cell models have been used to predict drug permeation in early stages of drug development, since they represent an easy and reproducible method, allowing the tracking of drug absorption rate and mechanism, with an advantageous costbenefit ratio. Such cell-based models are mainly composed of immortalized cells with an intrinsic ability to grow in a monolayer when seeded in permeable supports, maintaining their physiologic characteristics regarding epithelium cell physiology and functionality. Areas covered: This review summarizes the most important intestinal, pulmonary, nasal, vaginal, rectal, ocular and skin cell-based in vitro models for predicting the permeability of drugs. Moreover, the similitude between in vitro cell models and in vivo conditions are discussed, providing evidence that each model may provisionally resemble different drug absorption route. Expert opinion: Despite the widespread use of in vitro cell models for drug permeability and absorption evaluation purposes, a detailed study on the properties of these models and their in vitroin vivo correlation compared with human data are required to further use in order to consider a future drug discovery optimization and clinical development. {\textcopyright} 2012 Informa UK, Ltd.},
	keywords = {Animals, Caco-2 Cells, carcinoma cell, cell differentiation, cell growth, Cell Line, Cell Membrane Permeability, cell models, cell proliferation, cell strain CACO 2, cell type, Cells, conjunctiva, drug absorption, drug bioavailability, drug delivery system, drug penetration, drug screening, drug transport, epithelium cell, Eye, human, Humans, in vitro models, in vitro study, in vitroin vivo correlation, Intestinal Absorption, intestinal mucosa, intestine cell, Intestines, Lung, lung alveolus cell, Models, Biological, molecular weight, nasal cell, nonhuman, ocular cell, permeability, Pharmaceutical Preparations, rectal cell, review, Skin, skin cell, vaginal cell},
	isbn = {17425255 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84859967380\&partnerID=40\&md5=f531a0a6e96c96e8daf71a6b36dbec8a},
	author = {Sarmento, B. and Andrade, F. and Da Silva, S.B. and Rodrigues, F. and Das Neves, J. and Ferreira, D.}
}
