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Mol Neurobiol ; 59(5): 2822-2837, 2022 May.
Article in English | MEDLINE | ID: mdl-35212938

ABSTRACT

Glioblastoma multiforme is the most common, highly aggressive malignant brain tumor which is marked by highest inter- and intra-tumoral heterogeneity. Despite, immunotherapy, and combination therapies developed; the clinical trials often result into large number of failures. Often cancer cells are known to communicate with surrounding cells in tumor microenvironment (TME). Extracellular vesicles (EVs) consisting of diverse cargo mediates this intercellular communication and is believed to modulate the immune function against GBM. Tumor-associated microglia (TAM), though being the resident innate immune cell of CNS, is known to attain pro-tumorigenic M2 phenotype, and this immunomodulation is aided by extracellular vesicle-mediated transfer of oncogenic, immunomodulatory molecules. Besides, oncogenic proteins, long non-coding RNAs (lncRNAs), are believed to carry oncogenic potential, and therefore, understanding the mechanism leading to microglial dysregulation mediated by GBM-derived extracellular vesicle (GDEV) lncRNAs becomes crucial. This review focuses on current understanding of role of GDEV and lncRNA in microglial dysfunction and its potential as a therapeutic target.


Subject(s)
Brain Neoplasms , Extracellular Vesicles , Glioblastoma , RNA, Long Noncoding , Brain Neoplasms/metabolism , Cell Communication , Extracellular Vesicles/metabolism , Glioblastoma/pathology , Humans , Microglia/metabolism , RNA, Long Noncoding/metabolism , Tumor Microenvironment
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