2016
DOI: 10.18632/oncotarget.13638
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Tumor-associated mesenchymal stem-like cells provide extracellular signaling cue for invasiveness of glioblastoma cells

Abstract: Hyaluronic acid (HA) is abundant in tumor microenvironment and closely associated with invasiveness of glioblastoma (GBM) cells. However, the cellular mechanism underlying HA-rich microenvironment in GBM remains unexplored. Here, we show that tumor-associated mesenchymal stem-like cells (tMSLCs) contribute to abundance of hyaluronic acid (HA) in tumor microenvironment through HA synthase-2 (HAS2) induction, and thereby enhances invasiveness of GBM cells. In an autocrine manner, C5a secreted by tMSLCs activated… Show more

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Cited by 32 publications
(26 citation statements)
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“…108 In other studies, MSC-like cells were isolated from the GB tumor core and shown to increase angiogenesis, GB cell proliferation, and invasion. [110][111][112][113][114] Consistent with these findings, the percentage of GB-associated MSC-like cells has recently been shown to be inversely correlated with overall survival, indicating a role for these cells in promoting the aggressive behavior of GB. 115,116 All these data raise questions about the suitability of MSCs as cellular vehicles for the delivery of therapeutic molecules in the context of GB.…”
Section: Adult Stem Cellssupporting
confidence: 55%
“…108 In other studies, MSC-like cells were isolated from the GB tumor core and shown to increase angiogenesis, GB cell proliferation, and invasion. [110][111][112][113][114] Consistent with these findings, the percentage of GB-associated MSC-like cells has recently been shown to be inversely correlated with overall survival, indicating a role for these cells in promoting the aggressive behavior of GB. 115,116 All these data raise questions about the suitability of MSCs as cellular vehicles for the delivery of therapeutic molecules in the context of GB.…”
Section: Adult Stem Cellssupporting
confidence: 55%
“…Importantly, HA is found to be more abundant in the peritumoral regions compared to distant normal brain tissue [ 250 ]. A recent study by Lim et al suggests that tumor-associated mesenchymal stem-like cells—stromal cells that interact with glioma cells—may contribute to the high abundance of HA in the tumor microenvironment through the induction of HA synthase-2 [ 251 ]. Apart from providing mechanical support, HA interacts with multiple cognate receptors—including CD44, receptor for hyaluronate-mediated motility (RHAMM), and intercellular adhesion molecule-1 (ICAM-1)—whose elevated expression correlate with worse patient prognosis in GBM [ 252 ].…”
Section: Paving the Way For Invasion: How Glioma Cells Remodel The Ecmentioning
confidence: 99%
“…However, with remarkable advancement in technology and analytical methods seen in the last decade, attention has shifted to the TM contribution towards the development of chemoresistance [ 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ]. Chemotherapeutic drugs need to access all cancer cells in a solid tumor to be effective, thus components of the tumor microenvironment become important players in the response of these cells to drugs [ 33 , 47 , 48 , 49 , 50 , 51 , 52 , 53 ]. The TM is a dynamic entity and is characterized by cellular heterogeneous, the amounts of oxygen, nutrients and ECM proteins [ 41 , 54 , 55 , 56 , 57 , 58 , 59 ].…”
Section: Introductionmentioning
confidence: 99%