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@ARTICLE{Schumacher:212423,
author = {L. Schumacher and R. Slimani and L. Zizmare and J. Ehlers
and F. Kleine Borgmann and J. C. Fitzgerald and P.
Fallier-Becker and A. Beckmann and A. Grißmer and C. Meier
and A. El-Ayoubi and K. Devraj$^*$ and M. Mittelbronn and C.
Trautwein and U. Naumann},
title = {{TGF}-{B}eta {M}odulates the {I}ntegrity of the {B}lood
{B}rain {B}arrier {I}n {V}itro, and {I}s {A}ssociated with
{M}etabolic {A}lterations in {P}ericytes.},
journal = {Biomedicines},
volume = {11},
number = {1},
issn = {2227-9059},
address = {Basel},
publisher = {MDPI},
reportid = {DKFZ-2023-00142},
pages = {214},
year = {2023},
abstract = {The blood-brain barrier (BBB) is a selectively permeable
boundary that separates the circulating blood from the
extracellular fluid of the brain and is an essential
component for brain homeostasis. In glioblastoma (GBM), the
BBB of peritumoral vessels is often disrupted. Pericytes,
being important to maintaining BBB integrity, can be
functionally modified by GBM cells which induce
proliferation and cell motility via the TGF-β-mediated
induction of central epithelial to mesenchymal transition
(EMT) factors. We demonstrate that pericytes strengthen the
integrity of the BBB in primary endothelial cell/pericyte
co-cultures as an in vitro BBB model, using TEER measurement
of the barrier integrity. In contrast, this effect was
abrogated by TGF-β or conditioned medium from TGF-β
secreting GBM cells, leading to the disruption of a so far
intact and tight BBB. TGF-β notably changed the metabolic
behavior of pericytes, by shutting down the TCA cycle,
driving energy generation from oxidative phosphorylation
towards glycolysis, and by modulating pathways that are
necessary for the biosynthesis of molecules used for
proliferation and cell division. Combined metabolomic and
transcriptomic analyses further underscored that the
observed functional and metabolic changes of TGF-β-treated
pericytes are closely connected with their role as important
supporting cells during angiogenic processes.},
keywords = {blood–brain barrier (Other) / glioblastoma (Other) /
metabolomics (Other) / transforming growth factor beta
(Other)},
cin = {FM01},
ddc = {570},
cid = {I:(DE-He78)FM01-20160331},
pnm = {899 - ohne Topic (POF4-899)},
pid = {G:(DE-HGF)POF4-899},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:36672722},
pmc = {pmc:PMC9855966},
doi = {10.3390/biomedicines11010214},
url = {https://inrepo02.dkfz.de/record/212423},
}