Tumour necrosis factor-alpha mediates blood-brain barrier damage in HIV-1 infection of the central nervous system.

Abstract:

:The pathogenesis of brain inflammation and damage by human immunodeficiency virus (HIV) infection is unclear. Because blood-brain barrier damage and impaired cerebral perfusion are common features of HIV-1 infection, we evaluated the role of tumour necrosis factor-alpha (TNF-alpha) and interleukin-1beta (IL-1beta) in mediating disruption of the blood-brain barrier. Levels of TNF-alpha were more elevated in cerebrospinal fluid (CSF) than in serum of HIV-1 infected patients and were mainly detected in those patients who had neurologic involvement. Intrathecal TNF-alpha levels correlated with signs of blood-brain barrier damage, manifested by high CSF to serum albumin quotient, and with the degree of barrier impairment. In contrast, intrathecal IL-1beta levels did not correlate with blood-brain barrier damage in HIV-1 infected patients. TNF-alpha seems to be related to active neural inflammation and to blood-brain barrier damage. The proinflammatory effects of TNF-alpha in the nervous system are dissociated from those of IL-1beta.

journal_name

Mediators Inflamm

authors

Sharief MK,Ciardi M,Thompson EJ,Sorice F,Rossi F,Vullo V,Cirelli A

doi

10.1155/S0962935192000292

subject

Has Abstract

pub_date

1992-01-01 00:00:00

pages

191-6

issue

3

eissn

0962-9351

issn

1466-1861

journal_volume

1

pub_type

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