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Keywords:

  • macrophage;
  • Toll-like receptor;
  • HMGB1;
  • LPS;
  • apoptosis

Abstract: HMGB1 is a nonhistone nuclear protein that can serve as a cytokine and activate innate immunity. The translocation of this molecule from the inside to the outside of cells is a critical event in inflammation, occurring following activation of certain Toll-like receptors (TLRs) as well as during the course of apoptotic as well as necrotic cell death. Because the kinetics of HMGB1 release differs from that of a conventional cytokine, it provides a broader therapeutic window and may be an important new target of therapy for inflammatory, autoimmune, and infectious diseases.