Adenosine regulation of the immune response initiated by ischemia reperfusion injury

D. Boros, J. Thompson, Douglas F Larson

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

It is clinically established that adenosine has negative chronotropic, antiarrhythmic effects and reduces arterial blood pressure. Adenosine addition to cardioplegic solutions used in cardiac operations is clinically well tolerated and has been shown to improve myocardial protection in several studies. However, the mechanism of action remains unclear. Therefore, it is important to define the effect of adenosine on the inflammatory cascade as immune cell activation occurs early during ischemia reperfusion injury. Adenosine appears to mediate the initial steps of the inflammatory cascade via its four G-coupled protein receptors: A1, A2A, A2B, and A3, expressed on neutrophils, lymphocytes and macrophages. The adenosine receptor isotype dictates the immune response. More specifically, the A1 and A3 receptors stimulate a pro-inflammatory immune response whereas the A2A and A2B are immunosuppressive. As the adenosine receptors are important for cardiac pre-conditioning and post-conditioning, adenosine may regulate the inflammatory responses initiated during ischemia-mediated immune injury related to myocardial protection.

Original languageEnglish (US)
Pages (from-to)103-110
Number of pages8
JournalPerfusion
Volume31
Issue number2
DOIs
StatePublished - Mar 1 2016

Fingerprint

Lymphocytes
Macrophages
Blood pressure
conditioning
Reperfusion Injury
Adenosine
Chemical activation
Proteins
regulation
Purinergic P1 Receptors
activation
Cardioplegic Solutions
Immunosuppressive Agents
G-Protein-Coupled Receptors
Arterial Pressure
Neutrophils
Ischemia
Wounds and Injuries

Keywords

  • adenosine
  • cardioplegia
  • lymphocyte
  • macrophage
  • neutrophil
  • reperfusion

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Radiology Nuclear Medicine and imaging
  • Advanced and Specialized Nursing
  • Safety Research

Cite this

Adenosine regulation of the immune response initiated by ischemia reperfusion injury. / Boros, D.; Thompson, J.; Larson, Douglas F.

In: Perfusion, Vol. 31, No. 2, 01.03.2016, p. 103-110.

Research output: Contribution to journalArticle

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