Loss of Reelin suppresses cell survival and mobility in non-Hodgkin lymphoma

Oncology Reports
Aixia DouJunli Liu

Abstract

Reelin, a secreted glycoprotein, was recently demonstrated to be involved in the pathogenesis of cancer. However, its oncogenic activities in non-Hodgkin lymphoma (NHL) remain unclear. Therefore, we aimed to evaluate the functional role of reelin in NHL, and the underlying molecular mechanisms. In the present study, we analyzed reelin expression in lymphoma tissues and cell lines using immunohistochemistry, immunofluorescence staining, qRT-PCR and western blotting. Then, the expression of Reelin was silenced with short hairpin RNA (shRNA)-expressing plasmid in the NHL cell line A20. The effects of Reelin depletion on cell growth, migration and invasion in vitro were determined by CCK-8 and transwell assays. Flow cytometry was used to examine the cell cycle status and cellular apoptosis. Hoechst 33258 fluorescence staining was used to analyze morphologic changes caused by apoptosis. The second messenger, cAMP was analyzed by ELISA. In addition, we used nude mice to evaluate the tumorigenic ability of reelin. Aberrant upregulated levels of mRNA and protein of reelin were observed in lymphoma tissues and cell lines. Knockdown of reelin suppressed lymphoma growth, migration and invasion ability of A20. Furthermore, reelin depletion...Continue Reading

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