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Associação de derivados do quimioterápico daunorrubicina à nanoemulsão lipídica que se liga aos receptores da LDL: estudos pré-clínicos / Daunorubicin chemotherapic derivatives association to a lipidic nanoemulsion that binds to LDL receptors: pre-clinical studies
São Paulo; s.n; 2005. [110] p. ilus, tab.
Thesis in Portuguese | LILACS | ID: lil-424899
RESUMO
A daunorrubicina é utilizada no tratamento da leucemia mielóide aguda cujo uso é muito limitado devido à alta cardiotoxicidade. Neste trabalho foi feita a sua modificação química e associação à uma nanoemulsão lipídica que se liga aos receptores da LDL, a LDE, como um meio de reduzir a toxicidade do fármaco mantendo o efeito antitumoral. Dois derivados da daunorrubicina foram produzidos, caracterizados, associados à LDE e analisados quanto à taxa de associação, diâmetro da partícula e estabilidade no plasma. A LDE-N-oleil daunorrubicina foi menos cardiotóxica e menos letal em camundongos do que a daunorrubicina comercial. Houve efeito citotóxico em células tumorais, embora um pouco menor do que o da daunorrubicina comercial / Daunorubicin is a chemotherapic used in acute myeloid leukemia treatment which use is many limited due to high cardiotoxicity. Here we did the chemical modification of the drug and its association with a lipidic nanoemulsion that binds to LDL receptors, LDE, as a way of decreasing drug toxicity and, at the same time, keeping the antitumoral effect. Two N-daunorubicin derivatives were produced, chemically characterized and associated with LDE particles. The partitioning coefficient, LDE association rate, particle size and plasma stability was determined for each derivative. LDE-N-oleil daunorubicin was less cardiotoxic and had a higher lethal doses in Swiss mice than commercial daunorubicin. The antitumoral effect to leukemic cells was kept although it had been lower than commercial daunorubicin...
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Index: LILACS (Americas) Main subject: Receptors, LDL / Drug Carriers / Daunorubicin Type of study: Risk factors Language: Portuguese Year: 2005 Type: Thesis

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Index: LILACS (Americas) Main subject: Receptors, LDL / Drug Carriers / Daunorubicin Type of study: Risk factors Language: Portuguese Year: 2005 Type: Thesis