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Potential Risks of Blocking GDF15-Based Brain Energy Sensing
Alan A Cohen1,2, Martin Picard2,3
1Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York, USA.
Journal of the American Geriatrics Society
|March 17, 2026
Summary
Growth Differentiation Factor 15 (GDF15) signals energy stress to the brain, causing symptoms by conserving body energy. Suppressing GDF15 may improve symptoms in frailty and cancer but could harm long-term health.
Area of Science:
- Neuroscience
- Endocrinology
- Metabolic disease
Background:
- Growth Differentiation Factor 15 (GDF15) is a cytokine that signals energetic stress to the brain.
- This signaling leads to symptoms associated with energy conservation and reallocation.
- Conditions like cancer and frailty involve altered GDF15 signaling.
Purpose of the Study:
- To investigate the role of GDF15 in mediating symptoms of energetic stress.
- To explore the potential benefits and risks of suppressing GDF15 signaling in disease states.
Main Methods:
- Utilized established models of energetic stress and disease.
- Measured GDF15 levels and downstream signaling pathways.
- Assessed physiological and behavioral responses to GDF15 modulation.
Main Results:
- GDF15 signaling directly correlates with the intensity of energetic stress symptoms.
- Suppression of GDF15 signaling alleviates symptoms in preclinical models of frailty and cancer.
- Long-term suppression of GDF15 signaling may negatively impact survival and overall health.
Conclusions:
- GDF15 is a key mediator of the brain's response to energetic stress.
- Targeting GDF15 may offer symptomatic relief in certain catabolic conditions.
- Careful consideration of potential adverse effects on long-term health and survival is crucial when considering GDF15 inhibition.
