The Acute phase protein reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Acute phase protein

Acute phase proteins are proteins that are synthetized in the liver in response to inflammation. This response is called the acute phase reaction.

In response to injury, local inflammatory cells (neutrophil granulocytes and macrophages) secrete a number of cytokines into the bloodstream, most notably IL-1, IL-6, IL-11 and TNF-alpha.

The liver responds by producing a large number of acute phase reactants, most notably:

• C-reactive protein
• Alpha 1-antitrypsin
• Alpha 1-antichemotrypsin
• Alpha 2-macroglobulin
• some coagulation factors (Fibrinogen, prothrombin, factor VIII, plasminogen)
• Complement factors
• Serum amyloid protein (see amyloid)

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