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The aim of this study was to investigate the effect of boiled Moringa oleifera Lam. pod (bMO) in colon carcinogenesis via apoptotic pathway. Four groups of mice (eight mice/group) were induced by azoxymethane (AOM, 10 mg/kg BW i.p. at the third week) followed by dextran sodium sulfate (DSS) for 7 days (2% in drinking water at the fourth week), while one negative group (n = 8) received AIN-76A basal diet without AOM/DSS induction. Positive control group received basal diet with AOM/DSS induction, whereas treatment groups received basal diet containing 1.5%, 3.0%, and 6.0% of bMO at the 5th week till 20th week after AOM/DSS inductions. Mice were sacrificed and necropsied at the end of the 20th week. The results showed tumor incidence 87.5% and multiplicity 9.5 in positive control group. Subsequently, mice that received 1.5%–6.0% bMO exhibited tumor incidences and multiplicities at 25%–75% and 1.8–8.3, respectively. Pro-apoptosis protein BAX investigated by immunohistochemistry in mice treated with 3.0% bMO was significantly higher than positive control. Anti-apoptosis protein BCL-2 showed the lowest expression in mice fed with 6.0% bMO. The BAX/BCL-2 ratio proteins and the nuclear staining were found at the highest rate in mice received 3.0% bMO. This finding suggested that the bMO exhibited potent apoptosis induction through dissimilarity of BCL-2 family protein expression, thereby decreased BCL-2 protein expression and increased the BAX protein to promote cell death. Therefore, bMO has a potential as chemotherapeutic agent in colon cancer through induction of apoptosis.
Comparative Clinical Pathology – Springer Journals
Published: Sep 1, 2017
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