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Study of the drug interactions of gemcitabine hydrochloride with lipid membrane models

Grant number: 17/04712-6
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): May 01, 2017
Effective date (End): December 31, 2017
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Osvaldo Novais de Oliveira Junior
Grantee:Gustavo Freitas Do Nascimento
Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Associated research grant:13/14262-7 - Nanostructured films from biologically-relevant materials, AP.TEM

Abstract

Gemcitabine hydrochloride (GEM) is one of the drugs used in cancer treatment for several types of tumor pathologies. Unfortunately, the therapeutic efficacy of these drugs depends on the intrinsic or acquired resistance of patients during treatment, and this is a major problem in cancer therapy. On the other hand, Langmuir monolayers can be used to investigate the effects of drug molecules on the membrane and how these interactions can translate into effects on membrane proteins. In addition it gives us information about the possible mechanisms of action of antitumor drugs, as well as modeling some resistance processes, thus improving clinical treatments. The focus of this project is to study how the drug gemcitabine influences a single membrane model employing a lipid or mixture of various lipids. This will allow us to reach the closest membrane model of resistive tumor cells, and it will be possible to extract qualitative information on the character of these interactions. To that end, the Langmuir technique will be applied, since the monolayers air / water interface serve as a very useful model for the analysis of biomembranes. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
MATERON, ELSA M.; NASCIMENTO, GUSTAVO F.; SHIMIZU, FLAVIO M.; CAMARA, AMANDA S.; SANDRINO, BIANCA; FARIA, RONALDO C.; OLIVEIRA JR, OSVALDO N.. y Role of sphingomyelin on the interaction of the anticancer drug gemcitabine hydrochloride with cell membrane models. COLLOIDS AND SURFACES B-BIOINTERFACES, v. 196, . (12/15543-7, 17/24053-7, 17/04712-6, 18/22214-6)

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