Abstract:
:Neurons are embedded in an extracellular matrix (ECM), which functions both as a scaffold and as a regulator of neuronal function. The ECM is in turn dynamically altered through the action of serine proteases, which break down its constituents. This pathway has been implicated in the regulation of synaptic plasticity and of neuronal intrinsic excitability. In this study, we determined the short-term effects of interfering with proteolytic processes in the ECM, with a newly developed serine protease inhibitor. We monitored the spontaneous electrophysiological activity of in vitro primary rat cortical cultures, using microelectrode arrays. While pharmacological inhibition at a low dosage had no significant effect, at elevated concentrations it altered significantly network synchronization and functional connectivity but left unaltered single-cell electrical properties. These results suggest that serine protease inhibition affects synaptic properties, likely through its actions on the ECM.
journal_name
PeerJjournal_title
PeerJauthors
Van De Vijver S,Missault S,Van Soom J,Van Der Veken P,Augustyns K,Joossens J,Dedeurwaerdere S,Giugliano Mdoi
10.7717/peerj.6796subject
Has Abstractpub_date
2019-04-23 00:00:00pages
e6796issn
2167-8359pii
6796journal_volume
7pub_type
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