作者: Mitsutoshi Nakada , Daisuke Kita , Kazuya Futami , Junkoh Yamashita , Noboru Fujimoto
DOI: 10.3171/JNS.2001.94.3.0464
关键词:
摘要: Object. Acquisition of invasive and metastatic potentials through proteinase expression is an essential event in tumor progression. Among proteinases, matrix metalloproteinases (MMPs) are thought to play a key role progression the degradation extracellular matrix. In present study, authors examined MMP-2 (gelatinase A) membrane type 1 MMP (MT1-MMP), activator zymogen MMP-2, proMMP-2, together with tissue inhibitors (TIMP-1 TIMP-2) invasion astrocytic tumors humans. Methods. Analyses performed using sandwich enzyme immunoassays demonstrated that production levels proMMP-2 TIMP-1, but not TIMP-2, significantly higher glioblastomas multiforme than other grades tumors. Quantitative reverse transcription-polymerase chain reaction indicated MT1-MMP expressed predominantly glioblastoma tissues, its enhanced as grade increas...