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S-Phase Kinase-Associated Protein-2 and Nuclear Factor-kappa Beta as Molecular Targets of Oral Burkitt’s Lymphoma Cell Induced by Quinolinone Derivate-Vesnarinone

Author(s):

Supriatno*   Pages 1 - 6 ( 6 )

Abstract:


Background: 3,4-Dihydro-6-[4-{3,4-dimethoxybenzoyl}-1-piperazinyl]-2(1H)- quinolinone (vesnarinone), a novel inotropic drug with unique and complex mechanisms of action, is known to show antitumor activity against several human malignancies. In the present study, vesnarinone-induced signal transduction of S-phase kinase-associated protein 2 (Skp2) and nuclear factor-kappa beta (NF-kB) as molecular targets of oral malignant Burkitt’s lymphoma (Raji cells) was evaluated. Methods: Raji cells were incubated with vesnarinone at concentrations of 0, 1.25x10-2, 2.50x10- 2, or 5.0x10-2 Molar. After 24 h, chemotactic cell migration was examined by a Boyden chamber kit. Apoptosis induction was observed by caspase-9 colorimetric assay. To evaluate levels of Skp2, NF-kB, and κ-tubulin, Western blot analysis was performed. Results: Vesnarinone markedly suppressed chemotactic cell migration and significantly induced apoptosis by increasing the caspase-9 activity of Raji cells through down regulation of Skp2 and NF-kB. Conclusion: Vesnarinone decreased the expression of Skp2 and NF-kB indicating that these molecules may be targeted for the treatment of oral malignant Burkitt’s lymphoma (BL). The results of this work offer a promising therapeutic approach for BL tumors.

Keywords:

vesnarinone, chemotactic migration, apoptosis, Burkitt’s lymphoma cell, Skp-2, NF-kB

Affiliation:

Department of Oral Medicine, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta, 55281, DIY



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