Heterogeneity of viral IL-6 expression in HHV-8-associated diseases Academic Article uri icon


MeSH Major

  • Herpesvirus 8, Human
  • Interleukin-6
  • Lymphoma, AIDS-Related
  • Sarcoma, Kaposi
  • Viral Proteins


  • In order to characterize the expression of the viral interleukin-6 (vIL-6) homologue in various human herpesvirus 8 (HHV-8)-associated diseases, in situ hybridization and immunohistochemistry were applied to formalin-fixed specimens. These assays showed consistent expression of vIL-6 in primary effusion lymphomas and in a case of human immunodeficiency virus (HIV)-associated lymphadenopathy with a Castleman's disease-like appearance. In contrast, Kaposi's sarcoma specimens showed marked differences among specimens. In a consecutive series of specimens from the Johns Hopkins archives, vIL-6 expression was demonstrated in one of 13 cases. However, among 7 specimens selected from the AIDS Malignancy Bank because of their high levels of the T1.1 lytic transcript and virion production, vIL-6 expression was consistently demonstrated in infiltrating mononuclear cells and occasional spindle-shaped cells. Thus vIL-6 expression in clinical specimens correlates with other measures of the lytic viral cycle. Both assays generally give congruent results and are consistent with the possibility that vIL-6 expression plays a role in the pathogenesis of a variety of HHV-8-associated diseases.

publication date

  • September 8, 1999



  • Academic Article



  • eng

Digital Object Identifier (DOI)

  • 10.1086/314956

PubMed ID

  • 10438372

Additional Document Info

start page

  • 824

end page

  • 8


  • 180


  • 3