Abstract:
:Interleukin-6 (IL-6, BSF-2 or IFN-beta 2) is thought to be the major regulator of the acute-phase protein response that follows tissue injury and inflammation, with interleukin-1 (IL-1), tumour necrosis factor and more recently, LIF or HSF III, slightly stimulatory on only certain acute phase proteins. The synthesis of the major acute-phase protein SAA, originally described as being synthesized in response to IL-1, has been claimed recently to be mainly under IL-6 regulation. Our results show that in the human hepatoma cell line HuH-7, IL-1 is the major stimulating cytokine increasing SAA synthesis by a factor in excess of 100-fold. We also show that under most conditions interleukin-6 and tumour necrosis factor stimulate additively in combination with IL-1. Isoelectric focusing has demonstrated that SAA1 and SAA2 alpha are expressed but not SAA2 beta. The HuH-7 cell line is IL-6 responsive since haptoglobin is stimulated mainly by IL-6.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Raynes JG,Eagling S,McAdam KPdoi
10.1111/j.1365-2249.1991.tb05666.xsubject
Has Abstractpub_date
1991-03-01 00:00:00pages
488-91issue
3eissn
0009-9104issn
1365-2249journal_volume
83pub_type
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