期刊
ULTRASTRUCTURAL PATHOLOGY
卷 39, 期 3, 页码 177-186出版社
INFORMA HEALTHCARE
DOI: 10.3109/01913123.2014.981327
关键词
Cell-to-cell communication; cordocytes; exosomes; human brain; microvesicles; ultrastructure
资金
- NCRR NIH HHS [1S10RR23057] Funding Source: Medline
We describe in this work the presence of extracellular vesicles (EVs) along different cell types, especially cordocytes, in various clinical conditions of the human brain (atherothrombotic disease, cerebral tumors, hygroma durae matris, intracerebral cysts, Moyamoya disease and parenchymatous hematoma) using transmission electron microscopy (TEM). EVs, illustrated as exosomes and microvesicles, were causally related to cell-to-cell communication, and other vital functions of resident cells around the brain parenchyma, either around the cortical vessels or into the subarachnoid space and the reticular arachnoid. Our direct demonstration by TEM of these information transporters in all locations and situations where the cordocytes play coordinating and regulating roles, producing and delivering a significant number of EVs to their targets, remains to be better documented in future studies. This first study on this topic showed clearly that EVs can be important modulators of cell functions with roles in cell activation, differentiation, phenotypic change, cancer progression, from precursor/stem cells to tumoral phenotypes, because EVs are released en masse during key interactions and certain moments.
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