What happens in the skin? Integrating skin permeation kinetics into studies of developmental and reproductive toxicity following topical exposure

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12 Scopus citations

Abstract

Animal-based developmental and reproductive toxicological studies involving skin exposure rarely incorporate information on skin permeation kinetics. For practical reasons, animal studies cannot investigate the many factors which can affect human skin permeation and systemic uptake kinetics in real-life scenarios. Traditional route-to-route extrapolation is based on the same types of experiments and requires assumptions regarding route similarity. Pharmacokinetic modeling based on skin physiology and structure is the most efficient way to incorporate the variety of intrinsic skin and exposure-dependent parameters occurring in clinical and occupational settings into one framework. Physiologically-based pharmacokinetic models enable the integration of available in vivo, in vitro and in silico data to quantitatively predict the kinetics of uptake at the site of interest, as needed for 21st century toxicology and risk assessment. As demonstrated herein, proper interpretation and integration of these data is a multidisciplinary endeavor requiring toxicological, risk assessment, mathematical, pharmaceutical, biological and dermatological expertise.

Original languageEnglish (US)
Pages (from-to)252-281
Number of pages30
JournalReproductive Toxicology
Volume58
DOIs
StatePublished - Dec 1 2015

Bibliographical note

Funding Information:
YD’s work was funded by the A*STAR Strategic Positioning Fund.

Publisher Copyright:
© 2015 Elsevier Inc.

Keywords

  • Alternative methods
  • Dermal exposure
  • Exposure scenario
  • Occupational toxicology
  • PBPK
  • Skin penetration

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