The effect of pharmacological inhibition of Serine Proteases on neuronal networks in vitro.

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

PeerJ

journal_title

PeerJ

authors

Van De Vijver S,Missault S,Van Soom J,Van Der Veken P,Augustyns K,Joossens J,Dedeurwaerdere S,Giugliano M

doi

10.7717/peerj.6796

subject

Has Abstract

pub_date

2019-04-23 00:00:00

pages

e6796

issn

2167-8359

pii

6796

journal_volume

7

pub_type

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