Título
Cytotoxicity, Post-Treatment Recovery, and Selectivity Analysis of Naturally Occurring Podophyllotoxins from Bursera fagaroides var. fagaroides on Breast Cancer Cell Lines
Autor
OMAR ARISTEO PEÑA MORAN
LAURA PATRICIA ALVAREZ BERBER
ANGELICA MENESES ACOSTA
VERONICA RODRIGUEZ LOPEZ
MA. LUISA TERESA VILLARREAL ORTEGA
Nivel de Acceso
Acceso Abierto
Identificador alterno
issn/14203049
Materias
Resumen o descripción
Despite prevention and treatment options, breast cancer (BC) has become one of the most important issues in the present day. Therefore, the need for more specific and efficient compounds remains paramount. We evaluated four previously isolated aryltetralin lignans: 5′-demethoxy-β-peltatin-A-methylether (1), acetylpodophyllotoxin (2), 5′-demethoxydeoxypodophyllotoxin (3), and 7′,8′-dehydroacetylpodophyllotoxin (4) for cytotoxicity, clonogenicity, and selectivity against three BC cell lines: MCF-7, MDA-MB-231, and BT-549, as well as the non-tumorigenic mammary epithelial cell line MCF-10A. Cytotoxicity was evaluated after 72 h of treatment, and clonogenicity was determined at 72 h post-treatment; experiments were performed using the sulforhodamine B staining assay. Selective-index (SI) was calculated by comparing pure compound IC50 values in MCF-10A cell line against the IC50 of the same compound in cancer cell lines. Structural similarities among lignans and controls (podophyllotoxin and etoposide) were analyzed using the Tanimoto coefficient (Tc). Lignans were cytotoxic against all tested cell lines (0.011-7.22 μM) and clonogenicity testing showed a dose-dependent cytocidality for all lignans (≥0.08 μg/mL); compounds 2 and 3 were more potent (14.1 and 7.6 respectively) than etoposide in BT-549 cell line, while compound 2 displayed selectivity (SI = 28.17) in BT-549 cell line. Tc values of lignans suggested a greater similarity with podophyllotoxin structure.
Editor
MDPI AG
Fecha de publicación
4 de agosto de 2016
Tipo de publicación
Artículo
Recurso de información
Formato
Idioma
Inglés
Relación
Molecules
21
21
Cobertura
MEX
Audiencia
Investigadores
Repositorio Orígen
Repositorio Institucional de Acceso Abierto de la Universidad Autónoma del Estado de Morelos
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