Inhibitory effect of LRRC4 on the mobility and invasion of glioblastomas through the SDF-1alpha/CXCR4 axis / 中南大学学报(医学版)

ABSTRACT

OBJECTIVE@#To explore the effect of LRRC4 on the mobility and invasion of glioblastomas U251 cells through the SDF-1alpha/CXCR4 axis.@*METHODS@#RT-PCR, transfilter cell invasion assay, adhesion assay, scraping test, scrape loading, and dye transfer assay were used to determine the effect of LRRC4 on U251 cells.@*RESULTS@#SDF-1 alpha could increase the invasion in U251 which expressed CXCR4. The reintroduction of LRRC4 in U251 cells could inhibit the expression of CXCR4. LRRC4 also inhibited the adhesion ability of U251 to ECV304 as well as the mobility and invasion ability in vitro, which was mediated by the SDF-1alpha/CXCR4 axis. Furthermore, LRRC4 could greatly enhance the gap junctional intercellular communication of U251 cells.@*CONCLUSION@#The reintroduction of LRRC4 in U251 cells can inhibit the expression of CXCR4 and the SDF-1alpha/CXCR4 axis-mediated cell invasion in vitro.