Force-Mediated Proinvasive Matrix Remodeling Driven by Tumor-associated Mesenchymal Stem-like cells in Glioblastoma.

Force-Mediated Proinvasive Matrix Remodeling Driven by Tumor-associated Mesenchymal Stem-like cells in Glioblastoma. BMB Rep. 2018 Jan 05;: Authors: Lim EJ, Suh Y, Kim S, Kang SG, Lee SJ Abstract In carcinoma, cancer-associated fibroblasts participate in force-mediated extracellular matrix (ECM) remodeling, consequently leading to invasion of cancer cells. Likewise, the ECM remodeling actively occurs in glioblastoma (GBM) and the consequent microenvironmental stiffness is strongly linked to migration behavior of GBM cells. However, in GBM the stromal cells responsible for force-mediated ECM remodeling remain unidentified. We show that tumor-associated mesenchymal stem-like cells (tMSLCs) provide a proinvasive matrix condition in GBM by force-mediated ECM remodeling. Importantly, CCL2-mediated Janus kinase 1 (JAK1) activation increased phosphorylation of myosin light chain 2 in tMSLCs and led to collagen assembly and actomyosin contractility. Collectively, our findings implicate tMSLCs as stromal cells providing force-mediated proinvasive ECM remodeling in the GBM microenvironment, and reminiscent of fibroblasts in carcinoma. PMID: 29301607 [PubMed - as supplied by publisher]
Source: BMB Reports - Category: Biochemistry Authors: Tags: BMB Rep Source Type: research