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Published on: February 3, 2017
The Cardiomyocyte as a Source of Cytokines in Cardiac Injury
Toshinori Aoyagi1, Takashi Matsui
1Center for Cardiovascular Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI 96813.
Insights
Prolonged inflammation causes fibrosis, a key issue in heart damage after heart attacks. Controlling cytokine release from heart cells may prevent tissue injury and adverse cardiac remodeling.
Area of Science:
- Cardiovascular pathophysiology
- Cardiac remodeling
- Inflammation and fibrosis
Background:
- Adverse left ventricular remodeling post-myocardial infarction and pathological cardiac hypertrophy are characterized by inflammation-induced fibrosis.
- Leukocyte, non-myocyte (cardiac fibroblast), and cardiomyocyte interactions, potentially mediated by cytokine signaling, are crucial in post-cardiac injury inflammation.
Purpose of the Study:
- To investigate the role of cytokine signaling in cardiac injury.
- To explore strategies for preventing tissue damage by modulating cardiomyocyte cytokine secretion.
Main Methods:
- Analysis of inflammatory pathways in cardiac remodeling.
- Investigating cell-cell interactions (leukocytes, fibroblasts, cardiomyocytes).
- Focus on cytokine signaling mechanisms.
Main Results:
- Cytokine signaling plays a significant role in inflammatory responses post-cardiac injury.
- Interactions between cardiac cells influence inflammation control.
- Cardiomyocyte cytokine secretion is a potential target for therapeutic intervention.
Conclusions:
- Controlling cardiomyocyte cytokine secretion is a viable strategy to prevent cardiac tissue damage.
- Understanding cell interactions is key to managing inflammation after heart injury.
- Targeting cytokine pathways may mitigate adverse cardiac remodeling and fibrosis.
Abstract:
Fibrosis induced by prolonged inflammation is a major pathophysiological feature of adverse left ventricular remodeling after myocardial infarction and pathological cardiac hypertrophy. Recent reports strongly suggest that the interaction between leukocytes, non-myocytes (mainly cardiac fibroblasts) and cardiomyocytes, possibly mediated by cytokine signaling, plays an important role in controlling the inflammatory reaction after cardiac injury. Therefore, controlling cytokine secretion from resident cardiomyocytes is one plausible strategy for preventing tissue damage.
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