CXCR4-STAT3 Axis Plays a Role in Tumor Cell Infiltration in an Orthotopic Mouse Glioblastoma Model.
Mol Cells
; 43(6): 539-550, 2020 Jun 30.
Article
em En
| MEDLINE
| ID: mdl-32597394
ABSTRACT
Glioblastoma multiforme (GBM) is a fatal malignant tumor that is characterized by diffusive growth of tumor cells into the surrounding brain parenchyma. However, the diffusive nature of GBM and its relationship with the tumor microenvironment (TME) is still unknown. Here, we investigated the interactions of GBM with the surrounding microenvironment in orthotopic xenograft animal models using two human glioma cell lines, U87 and LN229. The GBM cells in our model showed different features on the aspects of cell growth rate during their development, dispersive nature of glioma tumor cells along blood vessels, and invasion into the brain parenchyma. Our results indicated that these differences in the two models are in part due to differences in the expression of CXCR4 and STAT3, both of which play an important role in tumor progression. In addition, the GBM shows considerable accumulation of resident microglia and peripheral macrophages, but polarizes differently into tumor-supporting cells. These results suggest that the intrinsic factors of GBM and their interaction with the TME determine the diffusive nature and probably the responsiveness to non-cancer cells in the TME.
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Base de dados:
MEDLINE
Assunto principal:
Neoplasias Encefálicas
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Transdução de Sinais
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Linfócitos do Interstício Tumoral
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Glioblastoma
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Receptores CXCR4
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Ensaios Antitumorais Modelo de Xenoenxerto
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Fator de Transcrição STAT3
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article