RESUMEN
The anticancer efficacy of methionine γ-lyase (MGL) from Clostridium sporogenes (C. sporogenes) is described. MGL was active against cancer cells in vitro and in vivo. Doxorubicin (DOX) and MGL were more effective on A549 human lung-cancer growth inhibition than either agent alone in vitro and in vivo.
Asunto(s)
Antineoplásicos/aislamiento & purificación , Liasas de Carbono-Azufre/metabolismo , Clostridium/enzimología , Ensayos Antitumor por Modelo de Xenoinjerto , Células A549 , Animales , Antineoplásicos/farmacología , Antineoplásicos/uso terapéutico , Liasas de Carbono-Azufre/aislamiento & purificación , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Cisplatino/farmacología , Cisplatino/uso terapéutico , Doxorrubicina/farmacología , Doxorrubicina/uso terapéutico , Pruebas de Enzimas , Humanos , Células MCF-7 , Ratones , Resultado del TratamientoRESUMEN
The anti-cancer efficacy of methionine γ-lyase (MGL) from Clostridium sporogenes (C. sporogenes) is described. MGL was active against cancer models in vitro and in vivo. The calculated EC50 values for MGL were 4.4 U/ml for A549, 7.5 U/ml for SK-BR3, 2.4 U/ml for SKOV3, and 0.4 U/ml for MCF7 cells. The combination of doxorubicin (DOX) and MGL was more effective for A549 human lung cancer growth inhibition than either agent alone in vitro and in vivo. MGL reduced the EC50 of doxorubicin from 35.9 µg/mL to 0.01-0.265 µg/mL. The growth inhibitory effect of DOX + MGL on A549 xenografts in vivo was reflective of the results obtained in vitro. The inhibition rate of tumor growth in the combined arm was 57%, significantly higher than that in the doxorubicin (p = 0.033)-alone arm.
