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Study breakdown

A Peptide That Targets Mitochondria Prevents Cell Death and Oxidative Damage

In VitroPreliminary evidence
The takeaway

A mitochondria-targeted peptide (SS-31) prevented mitochondrial membrane collapse and apoptosis from oxidative stress, demonstrating that targeting peptides to specific cellular compartments enables precision subcellular therapy.

Key finding

SS-31, a cell-permeable peptide targeting the inner mitochondrial membrane, prevented mitochondrial depolarization and apoptosis in neuronal cells exp

What the researchers found

SS-31, a cell-permeable peptide targeting the inner mitochondrial membrane, prevented mitochondrial depolarization and apoptosis in neuronal cells exposed to oxidative stress — demonstrating precision subcellular peptide targeting for protecting the cell's energy source.

Why it matters

Relevant for neuropeptides, neuroprotection, anti-aging, peptide-design.

How the study worked

in-vitro study on neuropeptides, neuroprotection.

What this study cannot tell us

See abstract.

How to read the evidence

preliminary evidence.

When this study was published

Published in 2005.

The bigger picture

Advances peptide research.

Questions still open

  • Further research needed.
  • Clinical translation to evaluate.

Common questions

What was studied?
A Peptide That Targets Mitochondria Prevents Cell Death and Oxidative Damage
What was found?
A mitochondria-targeted peptide (SS-31) prevented mitochondrial membrane collapse and apoptosis from oxidative stress, demonstrating that targeting peptides to specific cellular compartments enables precision subcellular therapy.

Read the original research

Mitochondria-targeted peptide prevents mitochondrial depolarization and apoptosis induced by tert-butyl hydroperoxide in neuronal cell lines.

Biochemical pharmacology, 70(12), 1796-806

Citation

Zhao, Kesheng; Luo, Guoxiong; Giannelli, Serena; Szeto, Hazel H. (2005). Mitochondria-targeted peptide prevents mitochondrial depolarization and apoptosis induced by tert-butyl hydroperoxide in neuronal cell lines.. Biochemical pharmacology, 70(12), 1796-806.