期刊
FRONTIERS IN PHARMACOLOGY
卷 12, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fphar.2021.692175
关键词
aquaporin 4; human brain tumors; tumorigenesis; immunoinformatics; CD8+T-cell
资金
- Liaoning Provincial Natural Science Foundation of China [2019-BS-05, 20180550761, 20180550976]
- Science and Technology Innovation Fund Project of Dalian [2019J13SN105]
- Health Commission Foundation of Dalian [17Z1007, 1911032]
The study identified high expression of AQP4 in CNS tumors, which was closely related to patient prognosis and influenced lymphocyte and cancer-associated fibroblast infiltration. Furthermore, AQP4 functional mechanisms were found to be associated with synaptic vesicle cycle and phosphatidylinositol signaling system.
Aquaporin 4 (AQP4) is an ubiquitously expressed membrane protein channel found in the central nervous system and mainly on astrocytes. Recent studies on AQP4 has implicated it in tumorigenesis. It is of interest to determine the potential value of AQP4 in identifying, guiding treatment and prognosticating various types of CNS cancers. This investigation systematically investigated the oncogenic role of AQP4 across 33 CNS tumors found in GEO and TCGA datasets. We found that CNS tumors strongly expressed AQP4. There appeared to be a strong link between the prognosis of patients with a CNS malignancy and degree of AQP4 expression. AQP4 expression influences the degree of CD8(+) T-cell infiltration level as well as cancer-associated fibroblast infiltration in CNS tumors. Moreover, synaptic vesicle cycle and phosphatidylinositol signaling system-associated functions were also found to be related to AQP4 functional mechanisms. Furthermore, potential AQP4 inhibitors have also been explored by using Specs data base and virtual screening technique. This study contributes toward current knowledge regarding the role of AQP4 in CNS tumors.
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