Autologous versus allogeneic T cell-stimulated IL-6 production by dermal fibroblasts.

Abstract:

:T cells adhere to human dermal fibroblasts (HDF). This cellular interaction leads to a pronounced secretion of the proinflammatory cytokines IL-6 and IL-8 via a juxtacrine stimulation induced by HDF-associated IL-1. Upon stimulation, fibroblasts express various surface proteins such as MCH-I molecules, which may interact with corresponding receptors on T cells. The present study was conducted to further investigate the mechanism of this complex interaction with regard to the secretion of IL-6 in cocultures of T cells and HDF. IL-6 was time- and dose-dependently upregulated in such cocultures. Spatial separation of the cells by microporous membranes resulted in a 90% reduction of IL-6 secretion, but when cells had limited cell contact IL-6 secretion was increased again. Allogeneic cocultures of T cells and HDF showed increased capacity of IL-6 stimulation as compared to autologous cultures. Our results suggest that MHC-I/T cell receptor interaction modulates IL-6 secretion in allogeneic and autologous cocultures.

journal_name

Inflammation

journal_title

Inflammation

authors

Spörri B,Bickel M,Limat A,Waelti ER,Hunziker T,Wiesmann UN

doi

10.1023/a:1027310218934

subject

Has Abstract

pub_date

1997-08-01 00:00:00

pages

371-8

issue

4

eissn

0360-3997

issn

1573-2576

journal_volume

21

pub_type

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