alexa All-trans retinoic acid (ATRA) downregulates MMP-9 by modulating its regulatory molecules.
Genetics & Molecular Biology

Genetics & Molecular Biology

Journal of Stem Cell Research & Therapy

Author(s): Dutta A, Sen T, Chatterjee A

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Abstract The vitamin A derivative all-trans retinoic acid (ATRA) is considered as a potent chemotherapeutic drug for its capability of regulating cell growth and differentiation. We aimed to study the effect of ATRA on MMP-9 in MDA-MB-231, human breast cancer cells and the probable molecular mechanisms through which ATRA exerts its effect. RESULTS: Our experimental findings demonstrate that ATRA enters into the nucleus and regulates various signaling pathways viz. Integrin, FAK, ERK, PI-3K, NF-κB and also EGFR and down regulates pro-MMP-9 activity as well as its expression. As a result MDA-MB-231 cell migration on fibronectin medium gets retarded in presence of ATRA. ATRA up regulates TIMP-1 expression. Our study may help to understand the role of ATRA as a regulator of MMP-9 and the possible signaling pathways which are involved in this ATRA mediated down regulation of MMP-9.
This article was published in Cell Adh Migr and referenced in Journal of Stem Cell Research & Therapy

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