Alkaloid-rich fraction of Himatanthus lancifolius contains anti-tumor agents against leukemic cells
The effects of the alkaloid-rich fraction of Himatanthus lancifolius (Müll. Arg) Woodson on normal marrow cells and leukemic cell lines were investigated. After 48 h exposure, the proliferation assay showed significant cell growth inhibition for Daudi (0.1-10 µg/mL), K-562 (1-10 µg/mL), and REH cell...
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doaj-5ca4fa34a6c94d5983caa68ef23cec7f2020-11-24T23:38:33ZengUniversidade de São PauloBrazilian Journal of Pharmaceutical Sciences1984-82502175-97902010-06-0146227328010.1590/S1984-82502010000200014Alkaloid-rich fraction of Himatanthus lancifolius contains anti-tumor agents against leukemic cellsMelissa Pires de LimaLuciana Farhat HilstFernanda Vanessa Rechinbach MattanaCid Aimbiré de Moraes SantosAlmeriane Maria Weffort-SantosThe effects of the alkaloid-rich fraction of Himatanthus lancifolius (Müll. Arg) Woodson on normal marrow cells and leukemic cell lines were investigated. After 48 h exposure, the proliferation assay showed significant cell growth inhibition for Daudi (0.1-10 µg/mL), K-562 (1-10 µg/mL), and REH cells (10-100 µg/mL), yet was inert for normal marrow cells. A similar inhibition profile was observed in clonogenic assays. This alkaloid-rich fraction, in which uleine is the main compound, showed no signs of toxicity to any cells up to 10 µg/mL. Cell feature analyses after induction of differentiation showed maintenance of the initial phenotype. Flow cytometric expression of Annexin-V and 7-AAD in K-562 and Daudi cells has indicated that the cells were not undergoing apoptosis or necrosis, suggesting cytostatic activity for tumor cells<br>Os efeitos da fração rica em alcalóides indólicos de Himatanthus lancifolius (Müll. Arg) Woodson sobre células normais de medula óssea e linhagens celulares leucêmicas foram investigados. Após 48 horas de exposição, os ensaios de proliferação demonstraram efeitos inibitórios significativos para as linhagens Daudi (0,1-10 µg/mL), K-562 (1-10 µg/mL) e REH (10-100 µg/mL), enquanto mostrou-se inerte sobre células normais de medula óssea. Os perfis de inibição se repetiram nos ensaios clonogênicos. A fração rica em alcalóides, na qual a uleína é a substância majoritária, não demonstrou toxicidade até a dose de 10 µg/mL para nenhuma das células incluídas no estudo. Da mesma forma, não se observou influência dessa fração sobre a diferenciação celular dessas linhagens, mas manutenção de seu estado maturacional inicial. O conjunto de dados descritos associado à baixa co-expressão de anexina-V e 7-AAD sugerem que esta fração exerce atividade citostática para células tumorais.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000200014ApocynaceaeProliferação celularHimatanthus lancifoliusAlcalóides indólicosLeucemiaExtrato vegetalApocynaceaeCell proliferationHimatanthus lancifoliusIndole alkaloidsLeukemiaPlant extract |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Melissa Pires de Lima Luciana Farhat Hilst Fernanda Vanessa Rechinbach Mattana Cid Aimbiré de Moraes Santos Almeriane Maria Weffort-Santos |
spellingShingle |
Melissa Pires de Lima Luciana Farhat Hilst Fernanda Vanessa Rechinbach Mattana Cid Aimbiré de Moraes Santos Almeriane Maria Weffort-Santos Alkaloid-rich fraction of Himatanthus lancifolius contains anti-tumor agents against leukemic cells Brazilian Journal of Pharmaceutical Sciences Apocynaceae Proliferação celular Himatanthus lancifolius Alcalóides indólicos Leucemia Extrato vegetal Apocynaceae Cell proliferation Himatanthus lancifolius Indole alkaloids Leukemia Plant extract |
author_facet |
Melissa Pires de Lima Luciana Farhat Hilst Fernanda Vanessa Rechinbach Mattana Cid Aimbiré de Moraes Santos Almeriane Maria Weffort-Santos |
author_sort |
Melissa Pires de Lima |
title |
Alkaloid-rich fraction of Himatanthus lancifolius contains anti-tumor agents against leukemic cells |
title_short |
Alkaloid-rich fraction of Himatanthus lancifolius contains anti-tumor agents against leukemic cells |
title_full |
Alkaloid-rich fraction of Himatanthus lancifolius contains anti-tumor agents against leukemic cells |
title_fullStr |
Alkaloid-rich fraction of Himatanthus lancifolius contains anti-tumor agents against leukemic cells |
title_full_unstemmed |
Alkaloid-rich fraction of Himatanthus lancifolius contains anti-tumor agents against leukemic cells |
title_sort |
alkaloid-rich fraction of himatanthus lancifolius contains anti-tumor agents against leukemic cells |
publisher |
Universidade de São Paulo |
series |
Brazilian Journal of Pharmaceutical Sciences |
issn |
1984-8250 2175-9790 |
publishDate |
2010-06-01 |
description |
The effects of the alkaloid-rich fraction of Himatanthus lancifolius (Müll. Arg) Woodson on normal marrow cells and leukemic cell lines were investigated. After 48 h exposure, the proliferation assay showed significant cell growth inhibition for Daudi (0.1-10 µg/mL), K-562 (1-10 µg/mL), and REH cells (10-100 µg/mL), yet was inert for normal marrow cells. A similar inhibition profile was observed in clonogenic assays. This alkaloid-rich fraction, in which uleine is the main compound, showed no signs of toxicity to any cells up to 10 µg/mL. Cell feature analyses after induction of differentiation showed maintenance of the initial phenotype. Flow cytometric expression of Annexin-V and 7-AAD in K-562 and Daudi cells has indicated that the cells were not undergoing apoptosis or necrosis, suggesting cytostatic activity for tumor cells<br>Os efeitos da fração rica em alcalóides indólicos de Himatanthus lancifolius (Müll. Arg) Woodson sobre células normais de medula óssea e linhagens celulares leucêmicas foram investigados. Após 48 horas de exposição, os ensaios de proliferação demonstraram efeitos inibitórios significativos para as linhagens Daudi (0,1-10 µg/mL), K-562 (1-10 µg/mL) e REH (10-100 µg/mL), enquanto mostrou-se inerte sobre células normais de medula óssea. Os perfis de inibição se repetiram nos ensaios clonogênicos. A fração rica em alcalóides, na qual a uleína é a substância majoritária, não demonstrou toxicidade até a dose de 10 µg/mL para nenhuma das células incluídas no estudo. Da mesma forma, não se observou influência dessa fração sobre a diferenciação celular dessas linhagens, mas manutenção de seu estado maturacional inicial. O conjunto de dados descritos associado à baixa co-expressão de anexina-V e 7-AAD sugerem que esta fração exerce atividade citostática para células tumorais. |
topic |
Apocynaceae Proliferação celular Himatanthus lancifolius Alcalóides indólicos Leucemia Extrato vegetal Apocynaceae Cell proliferation Himatanthus lancifolius Indole alkaloids Leukemia Plant extract |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000200014 |
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