title: Hitting Them Where They Live: Targeting the Glioblastoma Perivascular Stem Cell Niche.
abstract: Glioblastoma growth potential and resistance to therapy is currently largely attributed to a subset of tumor cells with stem-like properties. If correct, this means that cure will not be possible without eradication of the stem cell fraction and abrogation of those mechanisms through which stem cell activity is induced and maintained. Glioblastoma stem cell functions appear to be non-cell autonomous and the consequence of tumor cell residence within specialized domains such as the perivascular stem cell niche. In this review we consider the multiple cellular constituents of the perivascular niche, the molecular mechanisms that support niche structure and function and the implications of the perivascular localization of stem cells for anti-angiogenic approaches to cure.
authors.affiliation: Department of Pediatrics, Washington University School of Medicine, 660 South Euclid Ave. St Louis, MO 63110.
authors.forename: Michael D
authors.initials: MD
authors.lastname: Brooks
authors.forename: Rajarshi
authors.initials: R
authors.lastname: Sengupta
authors.forename: Steven C
authors.initials: SC
authors.lastname: Snyder
authors.forename: Joshua B
authors.initials: JB
authors.lastname: Rubin
keywords: Anti-angiogenic therapy; Astrocytes; Brain tumor; Cadherins; Cancer; Endothelial cells; Extra-cellular matrix; Glioblastoma; Integrins; Macrophage/microglia; PVN; Pathobiology; Pericytes; Perivascular niche; Stem cell