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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Main Authors: Melissa Pires de Lima, Luciana Farhat Hilst, Fernanda Vanessa Rechinbach Mattana, Cid Aimbiré de Moraes Santos, Almeriane Maria Weffort-Santos
Format: Article
Language:English
Published: Universidade de São Paulo 2010-06-01
Series:Brazilian Journal of Pharmaceutical Sciences
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000200014
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spelling 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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