The Role of Oncostatin M and Its Receptor Complexes in Cardiomyocyte Protection, Regeneration, and Failure

Thomas Kubin1, Praveen Gajawada1, Peter Bramlage2

  • 1Department of Cardiac Surgery, Kerckhoff Heart Center, Benekestr. 2-8, 61231 Bad Nauheim, Germany.

Insights

Oncostatin M (OSM) signaling impacts heart remodeling. While short-term OSM receptor activation aids recovery, chronic signaling promotes heart failure, presenting therapeutic challenges.

Area of Science:

  • Cardiology
  • Molecular Biology
  • Immunology

Background:

  • Oncostatin M (OSM), an interleukin-6 family cytokine, is a key mediator of cardiac remodeling in various heart diseases.
  • The OSM receptor (OSMR) signaling pathway is implicated in conditions like myocardial infarction and cardiomyopathies, making it a potential therapeutic target.
  • OSM's dual role in cardiac injury and its complex signaling in humans present challenges for drug development.

Purpose of the Study:

  • To provide an overview of OSM-induced cardiomyocyte remodeling.
  • To discuss the consequences of OSMR/gp130 and LIFR/gp130 activation in acute and chronic cardiac conditions.
  • To highlight the complexities of OSM signaling in human cardiac diseases.

Main Methods:

  • Review of existing literature on Oncostatin M signaling in cardiac remodeling.
  • Analysis of OSM receptor (OSMR/gp130) and leukemia inhibitory factor receptor (LIFR/gp130) complex activation.
  • Comparison of OSM signaling effects in mouse models versus human cardiac conditions.

Main Results:

  • Short-term OSMR/gp130 activation shows protective effects post-acute cardiac injury.
  • Chronic OSMR/gp130 activation promotes heart failure development.
  • OSM signaling integrates with other receptors, influencing cardiomyocyte dedifferentiation and systemic effects.

Conclusions:

  • OSM signaling complexity, involving both OSMR/gp130 and LIFR/gp130, contributes to diverse cardiac remodeling outcomes.
  • Understanding these differential effects is crucial for developing targeted pharmacological strategies for heart disease.
  • Further research into OSM's role in human cardiac pathophysiology is warranted.

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