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Updated: Nov 26, 2025

Isolation of Functional Cardiac Immune Cells
Published on: December 5, 2011
TNF-α signaling: TACE inhibition to put out the burning heart
Gesine M Dittrich1, Joerg Heineke1
1Department of Cardiovascular Physiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
Abstract:
More than 20 years ago, Seta and colleagues hypothesized that cytokines, which are activated by myocardial injury, significantly drive heart failure progression and would therefore be effective targets to treat cardiac dysfunction. Unfortunately, several clinical trials inhibiting key cytokines like tumor necrosis factor alpha (TNF-α) and interleukin 1 beta (Il-1β) turned out negative or even revealed adverse clinical effects. Providing a potential mechanistic explanation for the ineffectiveness of TNF-α blockade in heart failure, novel findings demonstrate that the membrane-bound precursor form of TNF-α, transmembrane TNF-α (tmTNF-α), mediates cardioprotective effects during pressure overload-induced cardiac remodeling. This study suggests that preventing tmTNF-α cleavage by targeting the TNF-α converting enzyme (TACE) rather than inhibiting TNF-α signaling altogether might be a valuable therapeutic approach.
Insights
Targeting transmembrane TNF-α (tmTNF-α), a precursor form of tumor necrosis factor alpha, may offer a new therapeutic strategy for heart failure. This approach prevents tmTNF-α cleavage, potentially overcoming limitations of previous cytokine inhibition trials.
Area of Science:
- Cardiovascular Research
- Immunology
- Molecular Medicine
Background:
- Cytokines, such as tumor necrosis factor alpha (TNF-α), were long considered therapeutic targets for heart failure.
- Previous clinical trials inhibiting TNF-α and other cytokines showed limited efficacy or adverse effects.
Purpose of the Study:
- To investigate the role of transmembrane TNF-α (tmTNF-α) in pressure overload-induced cardiac remodeling.
- To explore novel therapeutic strategies for heart failure by targeting TNF-α converting enzyme (TACE).
Main Methods:
- Analysis of cardiac remodeling and function under pressure overload conditions.
- Investigation of the effects of inhibiting tmTNF-α cleavage via TACE inhibition.
Main Results:
- Transmembrane TNF-α (tmTNF-α) exhibits cardioprotective effects during cardiac remodeling.
- Preventing tmTNF-α cleavage may be a more effective strategy than broad TNF-α inhibition.
Conclusions:
- The membrane-bound precursor form of TNF-α (tmTNF-α) plays a protective role in heart failure.
- Targeting TACE to prevent tmTNF-α cleavage represents a promising therapeutic avenue for heart failure treatment.
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