Hostname: page-component-848d4c4894-nr4z6 Total loading time: 0 Render date: 2024-05-15T00:27:12.251Z Has data issue: false hasContentIssue false

Why does inflammation persist: a dominant role for the stromal microenvironment?

Published online by Cambridge University Press:  13 February 2004

Michael R. Douglas
Affiliation:
Division of Neurosciences, University of Birmingham, Birmingham, B15 2TT, UK.
Karen E. Morrison
Affiliation:
Division of Neurosciences, University of Birmingham, Birmingham, B15 2TT, UK.
Michael Salmon
Affiliation:
Division of Immunity and Infection, University of Birmingham, Birmingham, B15 2TT, UK.
Christopher D. Buckley
Affiliation:
Division of Immunity and Infection, University of Birmingham, Birmingham, B15 2TT, UK.

Abstract

Inflammatory responses occur within tissue microenvironments, with functional contributions from both haematopoietic (lymphocytic) cells and stromal cells (including macrophages and fibroblasts). These environments are complex – a compound of many different cell types at different stages of activation and differentiation. Traditional models of inflammatory disease highlight the role of antigen-specific lymphocyte responses and attempt to identify causative agents. However, recent studies have indicated the importance of tissue microenvironments and the innate immune response in perpetuating the inflammatory process. The prominent role of stromal cells in the generation and maintenance of these environments has begun to challenge the primacy of the lymphocyte in regulating chronic inflammatory processes. Sensible enquiries into factors regulating the persistence of inflammatory disease necessitate an understanding of the mechanisms regulating tissue homeostasis and remodelling during inflammation. This article highlights recent insights into the factors regulating dynamic aspects of inflammation, focusing particularly on mononuclear cell infiltrates, their interactions with stromal cells in tissues and the relevance of these interactions to existing and possible future therapies. A key feature of current research has been a growing appreciation that disordered spatial and temporal interactions between infiltrating immune cells and resident stromal cells lie at the heart of disease persistence.

Type
Review Article
Copyright
© Cambridge University Press 2002

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)