More MS news articles for August 2002

Increased IL-13 but not IL-5 production by CD4-positive T cells and CD8-positive T cells in multiple sclerosis during relapse phase

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12163193&dopt=Abstract

J Neurol Sci 2002 Sep 15;201(1-2):45
Ochi H, Osoegawa M, Wu X, Minohara M, Horiuchi I, Murai H, Furuya H, Kira J.
Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, 812-8582, Fukuoka, Japan

In the present study, we flow cytometrically analyzed the intracellular production of interleukin (IL)-5 and IL-13 in peripheral blood CD4(+) and CD8(+) T cells from patients with multiple sclerosis (MS), human T-lymphotropic virus type I-associated myelopathy/tropical spastic paraparesis (HAM/TSP) and healthy controls.

IL-13-producing T cells were significantly increased in both T cell subsets in MS at relapse, markedly in the conventional form of MS and modestly in the optocospinal form of MS, and returned to normal at remission.

However, IL-5-producing T cells did not vary regardless of clinical phase or type.

HAM/TSP showed no significant change in the number of IL-5- and IL-13-producing cells.

A distinct profile of IL-13 and IL-5 production by disease and by phase of MS suggests an active involvement of these type 2 cytokines in central nervous system (CNS) inflammation.