Neurovascular fibrinolytic activity in normal Lewis rats and rats with cell-transferred experimental allergic encephalomyelitis.

Abstract:

:Fibrinolytic activity in the form of plasminogen activator (PA) was assessed using a histochemical fibrin slide technique in spinal cords of normal Lewis rats and rats with the cell-transferred form of experimental allergic encephalomyelitis (EAE). PA was localized exclusively to blood vessels. Vessels in the leptomeninges had maximum activity. A precipitous decrease in PA activity occurred in recipient rats which coincided with onset of clinical neurologic signs. A subsequent return in activity occurred in association with clinical remission of disease but remained well below the activity level of normal rats for as long as the recipient animals were followed. Vessels containing perivascular cellular infiltrates of EAE had little or no detectable PA activity. Furthermore, PA could not be demonstrated to be associated with infiltrating inflammatory cells, including macrophages. These findings provide further support for involvement of the coagulation and fibrinolytic systems in the early clinical manifestations of EAE in Lewis rats.

journal_name

J Neuroimmunol

authors

Koh CS,Kwaan HC,Paterson PY

doi

10.1016/0165-5728(90)90012-c

subject

Has Abstract

pub_date

1990-08-01 00:00:00

pages

189-200

issue

3

eissn

0165-5728

issn

1872-8421

pii

0165-5728(90)90012-C

journal_volume

28

pub_type

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