In vitro evidence supporting two mechanisms of action for the anion transport inhibitor L-644,711 in cerebral ischaemia.

Abstract:

:L-644,711 is a novel anion channel inhibitor which has previously been shown to decrease brain injury in two related rabbit models of cerebral ischaemia. We hypothesize two mechanisms of action of L-644,711 for its salutary effects on cerebral ischaemia: inhibition of neutrophil function and prevention of excitotoxin release from astrocytes. We present in vitro evidence supporting these two mechanisms of action. L-644,711 demonstrated a dose dependent inhibition of fMLP-induced neutrophil aggregation and superoxide anion release. In addition, L-644,711 demonstrated a dose dependent inhibition of glutamate release from swollen astrocytes in primary culture. We conclude that L-644,711 may prevent brain injury in cerebral ischaemia by inhibiting neutrophil function and preventing release of glutamate from swollen astrocytes.

journal_name

Neurol Res

journal_title

Neurological research

authors

Bednar MM,Kohut JJ,Kimelberg HK,Gross JJ,Gross CE

doi

10.1080/01616412.1992.11740011

subject

Has Abstract

pub_date

1992-03-01 00:00:00

pages

53-6

issue

1

eissn

0161-6412

issn

1743-1328

journal_volume

14

pub_type

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