Monochasma Savatieri Aqueous Extract inhibits Human Breast Cancer Cell Line Migration and Adhesion Without Generating Toxicity.

BACKGROUND: Monochasma savatieri, is a rare and endangered plant used to treat cancer in Chinese traditional medicine. OBJECTIVE: To evaluate the anti-cancer activity of M. savatieri aqueous extract by determining its cytotoxicity, anti-migratory, and anti-adhesion effects on breast cancer cells. METHODS: Cell viability, migration, adhesion, circularity, and cell cycle were evaluated by crystal violet (CV) staining, wound-healing, and transwell assays and flow cytometry in MCF7 and MDA-MB-231 cells. Caveolin-1, snail, vimentin and activated Erk and Akt expression were determined by western blot in MDA-MB-231 cells. Immunofluorescent assays confirmed caveolin-1 expression in MDA-MB-231 cells. RESULTS: Survival and cell cycle of MCF7 and MDA-MB-231 cells were not modified by doses up to 500 µg/mL of the extract. The extract inhibited cell migration and adhesion of MDA-MB-231 cells. When cells were exposed to the extract, there was a slight decrease in protein expression of factors related to epithelial-to-mesenchymal transition (snail and vimentin) and a strong decrease in the expression of the oncogenic membrane protein caveolin- 1. Furthermore, the levels of phosphorylated Erk and Akt were also decreased. The content of acteoside, a phenylpropanoid glycoside with reported anti-cancer activity present in M. savatieri, was almost 5 times as much as isoacteoside. CONCLUSION: M. savatieri possesses anti-cancer activity without exerting cytotoxicity on breast cancer cells. The extract exhibited anti-migratory and anti-adhesion effects on breast cancer cells by regulating Erk and Akt signaling pathways and the expression of caveolin-1. In addition, acteoside present in M. savatieri could be responsible for the observed effects.

Sociodemographic factors related with emergency colorectal cancer surgery at a referral center in Mexico.

BACKGROUND: Diagnosis of colorectal cancer (CRC) after emergency presentation is associated with a worse prognosis. AIM: The aim of the study was to determine the sociodemographic factors related with emergency CRC surgery at our institution. METHODS: From January 2009 to December 2017, patients that underwent CRC surgery at our institution were included in the study. Univariate and multivariate logistic regression were used to determine the effect of the potential risk factors on the rate of emergency surgery. RESULTS: A total of 247 patients underwent CRC surgery at our institution. The rate of emergency surgery was 7.7%. On univariate analysis, patients without a family history of cancer (odds ratio [OR]: 4.95), living in a rural area (OR: 3.7), and late clinical cancer stage (OR: 5.06) were associated with emergent surgery. Mid-income status was a protective factor for emergency surgery (OR: 0.14, p = 0.003). On multivariate analysis, late clinical cancer stage (OR: 4.41, 95% CI 1.21-16.05, p = 0.024) and mid-income economic status (OR: 0.41, 95% CI 0.04-0.55, p = 0.004) were identified as independent risk factors for emergency surgery. CONCLUSION: Social, economic, and demographic factors were identified as predictors for emergent CRC surgery.

ANTECEDENTES: El diagnóstico de cáncer colorrectal (CCR) en el contexto de urgencia está asociado a un mal pronóstico. OBJETIVO: Determinar los factores sociodemográficos asociados a cirugía de urgencia en el CCR en nuestra institución. MÉTODO: De enero de 2009 a diciembre de 2017 se incluyeron los pacientes operados de CCR y se realizaron análisis univariado y multivariado para determinar los potenciales factores de riesgo. RESULTADOS: Se incluyeron en el estudio 247 pacientes operados de CCR. El 7.7% de las cirugías fueron de urgencia. En el análisis univariado, los pacientes sin antecedentes familiares de cáncer (odds ratio [OR]: 4.95), los habitantes de zonas rurales (OR: 3.7) y aquellos en etapas avanzadas del cáncer (OR: 5.06) se asociaron a cirugía de urgencia. Los pacientes con nivel socioeconómico medio tuvieron menos probabilidad de que su cirugía fuera de urgencia (OR: 0.14; p = 0.003). En el análisis multivariado, debutar con una etapa clínica avanzada (OR: 4.41; intervalo de confianza del 95% [IC95%]: 1.21-16.05; p = 0.024) y tener un nivel socioeconómico medio (OR: 0.41; IC95%: 0.04-0.55; p = 0.004) fueron factores independientes para cirugía de urgencia por CCR. CONCLUSIONES: Los factores sociales, económicos y demográficos se encontraron relacionados con la necesidad de cirugía de urgencia por CCR.