Effects of ALA Derivatives on Protoporphyrin IX Production
Author Information
Author(s): Casas A, Batlle A M del C, Butler A R, Robertson D, Brown E H, MacRobert A, Riley P A
Primary Institution: CIPYP, CONICET and University of Buenos Aires, Argentina
Hypothesis
How do ALA derivatives affect protoporphyrin IX production in human and rat skin organ cultures?
Conclusion
ALA derivatives generate protoporphyrin IX more slowly than ALA in normal tissues, but may lead to enhanced accumulation over long exposure periods.
Supporting Evidence
- ALA derivatives generate protoporphyrin IX more slowly than ALA in normal tissues.
- The depot effect of ALA derivatives may enhance porphyrin accumulation over long exposure periods.
- Addition of the iron chelator CP94 greatly increased PpIX accumulation in human skin.
Takeaway
This study looked at how different versions of a chemical called ALA affect a substance in skin that can help with treatments. Some versions work slower but can build up over time.
Methodology
Human and rat skin samples were examined in short-term organ culture for their effect on protoporphyrin IX accumulation using fluorescence spectroscopy.
Digital Object Identifier (DOI)
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