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Article Publish Status: FREE
Abstract Title:

Preventing inflammation inhibits biopsy-mediated changes in tumor cell behavior.

Abstract Source:

Sci Rep. 2017 08 8 ;7(1):7529. Epub 2017 Aug 8. PMID: 28790339

Abstract Author(s):

Maria Alieva, Andreia S Margarido, Tamara Wieles, Erik R Abels, Burcin Colak, Carla Boquetale, Herke Jan Noordmans, Tom J Snijders, Marike L Broekman, Jacco van Rheenen

Article Affiliation:

Maria Alieva

Abstract:

Although biopsies and tumor resection are prognostically beneficial for glioblastomas (GBM), potential negative effects have also been suggested. Here, using retrospective study of patients and intravital imaging of mice, we identify some of these negative aspects, including stimulation of proliferation and migration of non-resected tumor cells, and provide a strategy to prevent these adverse effects. By repeated high-resolution intravital microscopy, we show that biopsy-like injury in GBM induces migration and proliferation of tumor cells through chemokine (C-C motif) ligand 2 (CCL-2)-dependent recruitment of macrophages. Blocking macrophage recruitment or administrating dexamethasone, a commonly used glucocorticoid to prevent brain edema in GBM patients, suppressed the observed inflammatory response and subsequent tumor growth upon biopsy both in mice and in multifocal GBM patients. Taken together, our study suggests that inhibiting CCL-2-dependent recruitment of macrophages may further increase the clinical benefits from surgical and biopsy procedures.

Study Type : In Vitro Study

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