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. 2014 Feb 1;29(2):388-92.
doi: 10.3305/nh.2014.29.2.7080.

Anti-proliferative action of silibinin on human colon adenomatous cancer HT-29 cells

Reyhan Akhtar  1 , Mohd Ali  2 , Safrunnisa Mahmood  3 , Sankar Nath Sanyal  4
Affiliations

Anti-proliferative action of silibinin on human colon adenomatous cancer HT-29 cells

Reyhan Akhtar et al. Nutr Hosp. .

Abstract
in English, Spanish

Background: Silibinin a flavonoid from milk thistle (Silybum marianum) exhibit a variety of pharmacological actions, including anti-proliferative and apoptotic activities against various types of cancers in intact animals and cancer cell lines. In the present study, the effect of silibinin on human colon cancer HT-29 cells was studied.

Method: Incubations of cells with different silibinin concentrations (0.783-1,600 ug/ml) for 24, 48 or 72 h showed a progressive decline in cell viability.

Results: Loss of cell viability was time dependent and optimum inhibition of cell growth (78%) was observed at 72 h. Under inverted microscope, the dead cells were seen as cell aggregates. IC50 (silibinin concentration killing 50% cells) values were 180, 110 and 40 ug/ml at 24, 48 and 72 h respectively.

Conclusion: These findings re-enforce the anticancer potential of silibinin, as reported earlier for various other cancer cell lines (Ramasamy and Agarwal (2008), Cancer Letters, 269: 352-62).

Antecedentes: Silibinina un flavonoide a partir de la leche de cardo mariano (Silybum marianum) exhiben una variedad de acciones farmacológicas, incluyendo actividades anti-proliferativos y apoptóticos contra varios tipos de cánceres en animales intactos y líneas celulares de cáncer. En el presente estudio, se estudió el efecto de silibinina en células humanas de cáncer de colon HT-29. Método: Las incubaciones de las células con diferentes concentraciones silibinin (0,783-1.600 ug/ml) para 24, 48 o 72 horas mostró un descenso progresivo de la viabilidad celular. Resultados: La pérdida de la viabilidad celular fue de tiempo de inhibición dependiente y óptima de crecimiento de las células (78%) se observó a las 72 horas. Bajo microscopio invertido, las células muertas fueron vistos como los agregados de células. IC50 (concentración de silibinina matar a las células 50%) los valores fueron 180, 110 y 40 ug/ml a las 24, 48 y 72 horas, respectivamente. Conclusión: Estos resultados volver a hacer cumplir la potenciales contra el cáncer de silibinina, como se informó anteriormente para varias otras líneas celulares de cáncer (Ramasamy y Agarwal (2008), Cancer Letters, 269: 352-62).

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