• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
https://doi.org/10.11606/D.5.2007.tde-12092008-134509
Document
Author
Full name
Juliana Ayello Moura
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2007
Supervisor
Committee
Valduga, Claudete Justina (President)
Gomes, Ligia Ferreira
Maria, Durvanei Augusto
Title in Portuguese
Uso de uma nanoemulsão rica em colesterol (LDE) como veículo para o di-dodecil metotrexato
Keywords in Portuguese
Células tumorais cultivadas
Ensaios de seleção de medicamentos antitumorais
Metotrexato/análogos & derivados
Metotrexato/toxicidade
Portadores de fármacos
Receptores LDL
Abstract in Portuguese
O uso da LDE como veículo para quimioterápicos tem mostrado ser uma boa estratégia para aumentar a eficácia terapêutica dos mesmos. Nesse estudo, a LDE foi empregada como veículo para um derivado lipofílico do metotrexato (MTX), o di-dodecil metotrexato, que foi obtido com rendimento elevado através de reação de esterificação do MTX. O aumento na lipofilicidade do derivado possibilitou incorporação na LDE com rendimento e estabilidade elevados. O IC50 de LDE-di-dodecil MTX foi cerca de 100 vezes menor em relação ao MTX comercial, sua captação celular mais elevada nas linhagens leucêmicas estudadas e sua toxicidade animal reduzida, mostrando que a LDE é um veículo promissor para este fármaco.
Title in English
Use of a cholesterol-rich nanoemulsion (LDE) as vehicle for di-dodecyl methotrexate
Keywords in English
Drug Carriers
Drug screening assays antitumor
Methotrexate/analogs & derivatives
Methotrexate/toxicity
Receptors LDL
Tumor cells cultured
Abstract in English
The use of LDE as vehicle to drugs is a great strategy to improve the therapeutic index and reduce the side effects. In this study LDE was used as vehicle to di-dodecyl methotrexate, a lipophilic derivative of MTX, obtained through an esterification reaction with a high yield. The increased lipophilicity of the derivative allowed a high association to LDE and good stability. The IC50 of LDE-di-dodecyl MTX was lower than that of the MTX and the uptake was higher in leukemic cells. The MTX toxicity in mice was reduced after association to LDE, showing that LDE is a promising vehicle to this drug.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
julianaamoura.pdf (1.14 Mbytes)
Publishing Date
2008-11-07
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.