SS-31 (Elamipretide)

Overview

SS-31 is a synthetic mitochondria-targeting tetrapeptide designed to interact with cardiolipin in the inner mitochondrial membrane.

In research contexts, SS-31 (also known as elamipretide) is primarily studied for its effects on mitochondrial bioenergetics, oxidative stress regulation, and cellular energy efficiency. It is widely investigated in models of age-related mitochondrial dysfunction and degenerative disease processes.

Unlike many signaling peptides, SS-31 acts directly at the level of mitochondrial membrane structure and function rather than classical receptor-mediated endocrine pathways.

Mechanism of Action

SS-31 acts through mitochondrial stabilization and bioenergetic optimization:

1. Cardiolipin Binding and Membrane Stabilization

✓ Selectively targets cardiolipin in the inner mitochondrial membrane
✓ Stabilizes mitochondrial cristae structure
✓ Improves electron transport chain efficiency
✓ Reduces membrane-associated oxidative damage

2. Reduction of Mitochondrial Oxidative Stress

✓ Decreases production of reactive oxygen species (ROS) in mitochondria
✓ Limits oxidative damage to mitochondrial proteins and lipids
✓ Supports redox balance within the organelle

3. Enhancement of ATP Production Efficiency

✓ Improves coupling efficiency of oxidative phosphorylation
✓ Enhances cellular energy output in stressed or aged models
✓ Optimizes mitochondrial respiration under pathological conditions

4. Cytoprotection Under Stress Conditions

✓ Protects cells from ischemia-reperfusion injury in experimental models
✓ Reduces apoptosis signaling triggered by mitochondrial dysfunction
✓ Supports cellular survival under metabolic stress

Research Applications

SS-31 is widely studied in mitochondrial and degenerative disease research:

Mitochondrial Dysfunction Research

• Age-related mitochondrial decline models

• Electron transport chain efficiency studies

• Oxidative phosphorylation optimization research

Cardiovascular Research

• Ischemia-reperfusion injury models

• Cardiac mitochondrial protection studies

• Heart failure energy metabolism research

Neurodegenerative Disease Research

• Mitochondrial dysfunction in neurons

• Alzheimer’s and Parkinson’s disease models

• Neuronal oxidative stress reduction studies

Metabolic and Aging Research

• Cellular energy decline in aging

• Sarcopenia and muscle mitochondrial efficiency

• Systemic oxidative stress reduction models

Technical Specifications

Stability & Storage

Lyophilized Form

• Store at -20°C or lower

• Protect from light and moisture

• Maintain sealed sterile conditions

• Avoid repeated freeze-thaw cycles

Reconstituted Form

• Store at 2–8°C for short-term use

• Limited stability depending on buffer composition

• Sensitive to degradation in aqueous solution over time

• Best handled under controlled laboratory conditions

Pharmacokinetic Notes (Research Data)

In experimental studies:

• Rapid distribution into tissues with high mitochondrial density

• Preferential accumulation in mitochondria due to cardiolipin affinity

• Effects are linked to membrane stabilization rather than receptor activation

• Functional improvements observed in cellular respiration efficiency

Safety and Physiological Considerations (Research Context)

Observed in research models:

• Generally well tolerated in experimental systems

• Does not act through endocrine or hormonal receptor pathways

• Effects are organelle-specific (mitochondrial level)

• Benefits are most pronounced under oxidative or metabolic stress conditions

Research Keywords / PubMed Search Terms

Core Topics

• SS-31 elamipretide mitochondria peptide

• cardiolipin binding peptide mitochondrial function

• mitochondrial targeted antioxidant peptide

• cristae stabilization elamipretide

Disease Models

• mitochondrial dysfunction aging peptide

• ischemia reperfusion injury SS-31

• neurodegenerative mitochondrial protection peptide

• heart failure mitochondrial energy metabolism

Cellular Bioenergetics

• oxidative phosphorylation efficiency peptides

• ROS reduction mitochondrial peptides

• ATP production mitochondrial stabilization

Research Use / Context Disclaimer

This material is intended for scientific and educational reference based on published literature and experimental research.

SS-31 (Elamipretide) is a mitochondria-targeting peptide studied in preclinical and clinical research contexts for mitochondrial dysfunction-related conditions.

This description:

• Is not medical advice

• Is not a dosing guide

• Is not intended to promote unsupervised use

• Reflects published research and experimental findings only