Immunopathogenesis of juvenile dermatomyositis.

Journal Article (Review)

There is increasing evidence for involvement of the mechanisms of the innate immune system in the pathogenesis of idiopathic inflammatory myopathies (IIMs), especially in the adult and juvenile forms of dermatomyositis. Juvenile dermatomyositis (JDM) is the most common form of childhood IIM, and this review focuses on recent advances in understanding the actions of the innate immune system in this condition. Over the last few years, great strides have been made in understanding immune dysregulation in IIM, including JDM. Novel autoantibodies have been identified, and new genetic contributions have been described. Among the most striking findings is type I interferon activity in JDM tissue and peripheral blood. This is in conjunction with the description of dysregulation of the major histocompatibility complex (MHC) class I gene and identification of plasmacytoid dendritic infiltrates as the possible cellular source of type I interferons. These findings also point toward the potential prognostic value of muscle biopsies and have helped expand our understanding of the etiopathogenesis of IIM.

Full Text

Duke Authors

Cited Authors

  • Khanna, S; Reed, AM

Published Date

  • May 2010

Published In

Volume / Issue

  • 41 / 5

Start / End Page

  • 581 - 592

PubMed ID

  • 20405498

Electronic International Standard Serial Number (EISSN)

  • 1097-4598

International Standard Serial Number (ISSN)

  • 0148-639X

Digital Object Identifier (DOI)

  • 10.1002/mus.21669

Language

  • eng