ArticleJournal of Cancer2025
Distinct roles of small extracellular vesicles from resident and infiltrating macrophages on glioma growth and mobility.
Article in Journal of Cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
2 citing papers in PubMed.
- Metabolic reprogramming and immunosenescence: a new sight for glioma therapy.Frontiers in cell and developmental biology · 2026Review
- Exosomal ncRNAs in liquid biopsy: a new paradigm for early cancer diagnosis and monitoring.Frontiers in oncology · 2025Review
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Previous studies revealed that tumor-associated macrophages/microglia (TAMs) promoted glioma invasiveness during tumor progression and after radiotherapy. However, the communication of TAMs with tumor cells remains unclear. This study aimed to examine the role of small extracellular vesicles (sEVs) derived from TAMs in TAMs-mediated brain tumor invasion. This study utilized BV2 and RAW264.7 cell lines representing resident and infiltrating macrophages, respectively, to unveil their effect on tumor cells. Purified sEVs from BV2 and RAW264.7 were validated by nanoparticle track analysis (NTA), transmission electron microscopy (TEM), and western blotting for sEV markers. The effect of sEVs on the murine astrocytoma tumor cell line ALTS1C1 was examined on cell proliferation, migration, and gene expression. The results showed that ALTS1C1 cells effectively engulfed sEVs purified from BV2 and RAW264.7. Only BV2-derived sEVs promoted cell proliferation and were dose-dependent. Further, morphological changes in ALTS1C1 cells were observed after incubation with BV2-derived sEVs, which was associated with enhancing cell migration. BV2-mediated glioma proliferation and mobility were related to the upregulation of vascular endothelial growth factor (VEGF) and downregulation of death effector domain-containing protein (DEDD) gene expression. This study demonstrates the distinct function of sEVs of resident macrophages on glioma cell invasion and reveals the mechanism underlying microglia-mediated tumor progression. These findings suggested resident microglia is the potential therapeutic target for TAMs-induced brain tumor invasiveness.
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Registered trials
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