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Article Publish Status: FREE
Abstract Title:

RECK and TIMP-2 mediate inhibition of MMP-2 and MMP-9 by.

Abstract Source:

J Biosci. 2020 ;45. PMID: 32661216

Abstract Author(s):

G Drishya, Jyotsna Nambiar, Sanu K Shaji, Muralidharan Vanuopadath, A Achuthan, Abishek Kumar, Ashna Alias, Ayesha Sherif, Catherine Joseph, P Divya, Damu Sunil Kumar, Chinchu Bose, Sobha Vijayan Nair, S Sudarslal, Geetha B Kumar, S Lakshmi, Bipin G Nair

Article Affiliation:

G Drishya

Abstract:

Up-regulation of MMP-2 and MMP-9 plays a significant role in promoting cancer progression by degrading the components of the extracellular matrix, thereby enhancing the migration of tumor cells. Although the antiproliferative and apoptotic effect ofis well established, its effect on MMP-2 and MMP-9, a major target in several types of cancers, has not been studied. Powdered samples of various parts of A. muricata like fruit, stem, seed, and twig extracted using aqueous methanol showed significant dose-dependent inhibition of MMP-2 and MMP-9 in a highly metastatic fibrosarcoma cell line, HT1080. Additionally, these extracts also up-regulated the expression of several endogenous inhibitors of MMP-2 and MMP-9 like REversion-inducing Cysteine-rich protein with Kazal motifs (RECK) and Tissue Inhibitor of Metalloproteinase- 2 (TIMP-2). Furthermore, primary cells developed from tumor tissues obtained from patients not exposed to chemotherapy, also exhibited similar results. Remarkably, the inhibition of MMP-2 and MMP-9 observed was tumor specific, with thefruit extract showing only 2% inhibition in cells obtained from normal tissues, when compared to 60% inhibition observed in cells obtained from tumor samples. The present study elucidates a novel mechanism by whichextracts selectively exhibit their anti-cancer activity in tumor cells by down-regulating MMP-2 and MMP-9 that are important biomarkers in cancer.

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