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Related Experiment Videos

HMGB1: guiding immunity from within.

Ingrid E Dumitriu1, Paramita Baruah, Angelo A Manfredi

  • 1Cancer Immunotherapy & Gene Therapy Program, Clinical Immunology Unit, H. San Raffaele Scientific Institute, via Olgettina 58, Milano 20132, Italy. dumitriu.ingrid@hsr.it

Trends in Immunology
|June 28, 2005
PubMed
Summary
This summary is machine-generated.

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High mobility group box 1 (HMGB1) protein acts as a danger signal for the innate immune system, alerting it to cell death and microbial invasion. This review highlights HMGB1's dual role in cellular debris clearance and immune defense.

Area of Science:

  • Immunology
  • Cell Biology
  • Evolutionary Biology

Background:

  • Eukaryotic multicellular organisms evolved mechanisms to manage cell death and combat pathogens.
  • The innate immune system is crucial for clearing cellular debris and defending against microbial invaders.

Purpose of the Study:

  • To review the multifaceted role of high mobility group box 1 (HMGB1) protein.
  • To highlight HMGB1 as a common danger signal in the innate immune response to cell death and microbial invasion.

Main Methods:

  • Literature review focusing on HMGB1's functions.
  • Analysis of HMGB1's role as an extracellular mediator.
  • Examination of HMGB1's involvement in tissue homeostasis and disease.

Main Results:

Related Experiment Videos

  • HMGB1, traditionally known as a nuclear protein, functions as an extracellular mediator.
  • HMGB1 signals excessive or deregulated cell death to the innate immune system.
  • HMGB1 alerts the innate immune system to microbial invasion.

Conclusions:

  • HMGB1 is a critical endogenous molecule linking cell death and immune responses.
  • HMGB1 plays a significant role in maintaining tissue homeostasis.
  • Dysregulation of HMGB1 contributes to various diseases.