Abstract
ABSTRACTExtra cellular matrix (ECM) and basement membrane (BM) are important layers that regulate cell structure, cell migration, and cellular proliferation. Degradation of both ECM and BM mediated by proteases favors the tumor invasion and promotes angiogenesis. Female Sprague-Dawley rats weighing 180 ± 10 g were categorized into 6 groups. Group-1 animals served as vehicle control. Group-2 to Group-4 animals were administered with 7,12-dimethylbenz(a)anthracene (25 mg/rat dissolved in olive oil, orally) on day 1 of experimental period to induce mammary carcinoma. (After 90 days, mammary carcinoma was confirmed by histopathological examination). Group-3 and Group-4 rats were subsequently treated with Semecarpus anacardium nut milk extract (SA) and Kalpaamruthaa (KA), respectively. Group-5 and Group-6 animals served as drug control for SA and KA, respectively. Pro-angiogenic factors like proteases, cyclooxygenase-2, and vascular endothelial growth factor were elevated in tumor-bearing animals and decreased in SA- and KA-supplemented rats. Increased levels of these angiogenic factors in tumor-bearing rats indicate the progression of mammary tumor. The decreased levels of these angiogenic in SA- and KA-treated rats may be due to the ameliorative effect of phenolic compounds such as flavonoids, tannins, and other compounds present in the drug.
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