'Fish matters': The relevance of fish skin biology to investigative dermatology

Sebastian Rakers, Marina Gebert, Sai Uppalapati, Wilfried Meyer, Paul Maderson, Anne F. Sell, Charli Kruse, Ralf Paus

Research output: Contribution to journalArticlepeer-review

98 Scopus citations


Fish skin is a multi-purpose tissue that serves numerous vital functions including chemical and physical protection, sensory activity, behavioural purposes or hormone metabolism. Further, it is an important first-line defense system against pathogens, as fish are continuously exposed to multiple microbial challenges in their aquatic habitat. Fish skin excels in highly developed antimicrobial features, many of which have been preserved throughout evolution, and infection defense principles employed by piscine skin are still operative in human skin. This review argues that it is both rewarding and important for investigative dermatologists to revive their interest in fish skin biology, as it provides insights into numerous fundamental issues that are of major relevance to mammalian skin. The basic molecular insights provided by zebrafish in vivo-genomics for genetic, regeneration and melanoma research, the complex antimicrobial defense systems of fish skin and the molecular controls of melanocyte stem cells are just some of the fascinating examples that illustrate the multiple potential uses of fish skin models in investigative dermatology. We synthesize the essentials of fish skin biology and highlight selected aspects that are of particular comparative interest to basic and clinically applied human skin research.

Original languageEnglish (US)
Pages (from-to)313-324
Number of pages12
JournalExperimental dermatology
Issue number4
StatePublished - Apr 2010
Externally publishedYes


  • Antimicrobial defense
  • Epidermis
  • Fish skin
  • Fish stem cells
  • Mucus

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Dermatology


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