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Related Experiment Videos

The TREM-1/DAP12 pathway.

Anja S Tessarz1, Adelheid Cerwenka

  • 1German Cancer Research Center DKFZ, Division of Innate Immunity, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany. a.tessarz@dkfz-heidelberg.de

Immunology Letters
|January 15, 2008
PubMed
Summary
This summary is machine-generated.

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The triggering receptor expressed on myeloid cells-1 (TREM-1) pathway, involving DNAX activation protein of 12kDa (DAP12), is crucial for inflammatory responses in monocytes and neutrophils. Understanding this TREM-1/DAP12 signaling cascade offers therapeutic potential for inflammatory diseases.

Area of Science:

  • Immunology
  • Cellular Signaling

Background:

  • DNAX activation protein of 12kDa (DAP12) is an adapter protein coupling to receptors on immune cells like NK cells, monocytes, and neutrophils.
  • The triggering receptor expressed on myeloid cells-1 (TREM-1) associates with DAP12 in myeloid cells, mediating inflammatory responses.
  • TREM-1 signaling, though studied via antibodies, triggers cytokine release, reactive oxygen species (ROS) production, degranulation, and phagocytosis.

Purpose of the Study:

  • To review the current understanding of the TREM-1/DAP12 signaling pathway in monocytes and neutrophils.
  • To highlight the therapeutic potential of targeting the TREM-1/DAP12 pathway for inflammatory diseases.

Main Methods:

  • Literature review summarizing existing research on TREM-1/DAP12 signaling.
  • Analysis of TREM-1 function in myeloid cells, including its downstream effects.

Related Experiment Videos

Main Results:

  • TREM-1 activation leads to pro-inflammatory cytokine and chemokine production.
  • TREM-1 signaling induces reactive oxygen species (ROS) generation, neutrophilic degranulation, and phagocytosis.
  • TREM-1/Ig fusion protein administration improved survival in a sepsis animal model.

Conclusions:

  • The TREM-1/DAP12 pathway plays a significant role in innate immunity and inflammation.
  • Targeting components of the TREM-1/DAP12 pathway presents a promising therapeutic strategy for inflammatory conditions.