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Lifestyle and nutritional changes have contributed much to the somatic genetic changes which have concurrently led to an increase cancer in humans. Hence the plant-based and nutritional involvements block oncogenic transformation are in good demand. We evaluate Phloem exudates of the dietary plant, Musa acuminate pseudostem, the initial domesticated plant species with the effective lectin activity for its functional role against the tumor development and its mechanism of action. Our experimental data exhibit that Musa acuminata Lectin Protein (MALP) shows a promising cytotoxic effect against the various human cancer cell lines. Supporting this, we evaluate the in vivo anti-tumor and anti-angiogenic activity of MALP in Ehrlich Ascites Carcinoma mice model (EAC). MALP treatment resulted in tumor growth inhibition and increased the lifespan of the EAC-bearing mice without showing any side effects on normal mice, as revealed by histological parameters. Further, a significant decrease in the ascites vascular endothelial growth factor (VEGF) secretion and microvessel density supports the anti-angiogenic property of the MALP. Apoptosis-inducing activity of MALP was revealed by DNA fragmentation assay, Caspase-3 inhibitor assay and cellular morphology were studied by fluorescence staining methods. Our study delivers the real evidence that MALP with a promising an anticancer potential expressively degenerates the tumor development by affecting angiogenesis and apoptosis. [ABSTRACT FROM AUTHOR]