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Proapoptotic and Antiinvasive Activity of Rac1 Small Molecule Inhibitors on Malignant Glioma Cells

Overview
Publisher Dove Medical Press
Specialty Oncology
Date 2014 Nov 8
PMID 25378937
Citations 22
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Abstract

Malignant gliomas are characterized by an intrinsic ability to invade diffusely throughout the normal brain tissue. This feature contributes mainly to the failure of existing therapies. Deregulation of small GTPases signaling, in particular Rac1 activity, plays a key role in the invasive phenotype of gliomas. Here we report the effect of ZINC69391, a specific Rac1 inhibitor developed by our group, on human glioma cell lines LN229 and U-87 MG. ZINC69391 is able to interfere with the interaction of Rac1 with Dock180, a relevant Rac1 activator in glioma invasion, and to reduce Rac1-GTP levels. The kinase Pak1, a downstream effector of Dock180-Rac1 signaling, was also downregulated upon ZINC69391 treatment. ZINC69391 reduced cell proliferation, arrested cells in G1 phase, and triggered apoptosis in glioma cells. Importantly, ZINC69391 dramatically affected cell migration and invasion in vitro, interfering with actin cytoskeleton dynamics. We also evaluated the effect of analog 1A-116, a compound derived from ZINC69391 structure. 1A-116 showed an improved antiproliferative and antiinvasive activity on glioma cells. These findings encourage further preclinical testing in clinically relevant animal models.

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References
1.
Ye D, Field J . PAK signaling in cancer. Cell Logist. 2012; 2(2):105-116. PMC: 3490961. DOI: 10.4161/cl.21882. View

2.
Vader P, van der Meel R, Symons M, Fens M, Pieters E, Wilschut K . Examining the role of Rac1 in tumor angiogenesis and growth: a clinically relevant RNAi-mediated approach. Angiogenesis. 2011; 14(4):457-66. DOI: 10.1007/s10456-011-9229-x. View

3.
Hirata E, Yukinaga H, Kamioka Y, Arakawa Y, Miyamoto S, Okada T . In vivo fluorescence resonance energy transfer imaging reveals differential activation of Rho-family GTPases in glioblastoma cell invasion. J Cell Sci. 2012; 125(Pt 4):858-68. DOI: 10.1242/jcs.089995. View

4.
Etienne-Manneville S, Hall A . Rho GTPases in cell biology. Nature. 2002; 420(6916):629-35. DOI: 10.1038/nature01148. View

5.
Fritz G, Just I, Kaina B . Rho GTPases are over-expressed in human tumors. Int J Cancer. 1999; 81(5):682-7. DOI: 10.1002/(sici)1097-0215(19990531)81:5<682::aid-ijc2>3.0.co;2-b. View