Negative regulators of inflammation as endogenous protective mechanisms in postinfarction remodeling

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Myocardial infarction triggers an intense inflammatory reaction that serves to clear the wound from dead cells and matrix debris while promoting cardiac repair and formation of a scar. Dysregulated inflammation following cardiac injury has adverse consequences on the reparative response enhancing dilative remodeling and causing contractile dysfunction. Inhibitory molecular signals and suppressive pathways that prevent excessive or uncontrolled inflammation are activated in the infarcted myocardium and may protect from the development of adverse remodeling. This chapter discusses the cellular effectors and molecular signals responsible for suppression and containment of the postinfarction inflammatory response. Neutrophils, monocytes/macrophages, and lymphocyte subpopulations with suppressive properties, dendritic cells, vascular cells, fibroblasts, and extracellular matrix proteins contribute to inhibition of the inflammatory signals by producing soluble suppressive mediators (such as transforming growth factor-ß, interleukin-10, and lipid-derived mediators) and through activation of intracellular inhibitory signals. We propose that dilative remodeling in patients with myocardial infarction may reflect impairment of suppressive anti-inflammatory pathways. Selective inhibition of inflammatory mediators in patient subpopulations with overactive postinfarction inflammation may protect from the development of heart failure.

Original languageEnglish (US)
Title of host publicationCardiac Remodeling
Subtitle of host publicationMolecular Mechanisms
PublisherSpringer New York
Pages313-330
Number of pages18
ISBN (Electronic)9781461459309
ISBN (Print)9781461459293
DOIs
StatePublished - Jan 1 2013

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Lymphocytes
Macrophages
Extracellular Matrix Proteins
Transforming Growth Factors
Fibroblasts
Debris
Interleukin-10
Repair
Anti-Inflammatory Agents
Chemical activation
Inflammation
Lipids
Myocardial Infarction
Lymphocyte Subsets
Wounds and Injuries
Dendritic Cells
Cicatrix
Blood Vessels
Monocytes
Signal Transduction

Keywords

  • Cytokine
  • Fibroblasts
  • Interleukin-10
  • Monocytes
  • Myocardial infarction
  • Neutrophils
  • Regulatory T cells
  • Remodeling
  • Toll-like receptors
  • Transforming growth factor (TGF)-ß

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Negative regulators of inflammation as endogenous protective mechanisms in postinfarction remodeling. / Saxena, Amit; Frangogiannis, Nikolaos G.

Cardiac Remodeling: Molecular Mechanisms. Springer New York, 2013. p. 313-330.

Research output: Chapter in Book/Report/Conference proceedingChapter

Saxena, Amit ; Frangogiannis, Nikolaos G. / Negative regulators of inflammation as endogenous protective mechanisms in postinfarction remodeling. Cardiac Remodeling: Molecular Mechanisms. Springer New York, 2013. pp. 313-330
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