High-dose methylprednisolone reduces cytokine-induced adhesion molecules on human brain endothelium

M. Gelati, E. Corsini, A. Dufour, G. Massa, S. Giombini, C. L. Solero, A. Salmaggi

Research output: Contribution to journalArticle

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Abstract

Objective: We investigated the in vitro effects of low- and high-dose methylprednisolone (MP) on the cytokine-induced expression of HLA-DR, ICAM-1 and VCAM-1 on human brain microvessel endothelial cells (HBMECs). Methods: Brain endothelium was obtained from microvessels included in the apparently normal white matter of surgical specimens of nine patients. Cells were stained with monoclonal antibodies anti-HLA-DR, anti-ICAM-1 and anti-VCAM-1 and analysed by flow cytometry as fluorescence histograms. The mean fluorescence intensity (MFI) of HBMECs treated with different stimuli was calculated. Results: γ-IFN-induced HLA-DR was down-regulated in a dose-dependent manner by MP. High-dose MP reduced the TNF-α-induced ICAM-1 and VCAM-1 expression. Conclusions: The down-regulation of adhesion molecules on cerebral endothelial cells could decrease mononuclear cell transmigration through the blood brain barrier and consequently the perivascular infiltrates. The results add support to the rationale for high-dose MP treatment in multiple sclerosis relapses.

Original languageEnglish
Pages (from-to)241-244
Number of pages4
JournalCanadian Journal of Neurological Sciences
Volume27
Issue number3
Publication statusPublished - 2000

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Methylprednisolone
Endothelium
Vascular Cell Adhesion Molecule-1
HLA-DR Antigens
Intercellular Adhesion Molecule-1
Microvessels
Cytokines
Endothelial Cells
Brain
Fluorescence
Blood-Brain Barrier
Multiple Sclerosis
Flow Cytometry
Down-Regulation
Monoclonal Antibodies
Recurrence
Therapeutics

ASJC Scopus subject areas

  • Clinical Neurology
  • Neuroscience(all)

Cite this

High-dose methylprednisolone reduces cytokine-induced adhesion molecules on human brain endothelium. / Gelati, M.; Corsini, E.; Dufour, A.; Massa, G.; Giombini, S.; Solero, C. L.; Salmaggi, A.

In: Canadian Journal of Neurological Sciences, Vol. 27, No. 3, 2000, p. 241-244.

Research output: Contribution to journalArticle

Gelati, M. ; Corsini, E. ; Dufour, A. ; Massa, G. ; Giombini, S. ; Solero, C. L. ; Salmaggi, A. / High-dose methylprednisolone reduces cytokine-induced adhesion molecules on human brain endothelium. In: Canadian Journal of Neurological Sciences. 2000 ; Vol. 27, No. 3. pp. 241-244.
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AU - Solero, C. L.

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