Skip to content. | Skip to navigation

Personal tools

You are here: Home / Associated publications / Belgian Journal of Zoology / Bibliographic References / Immuno reactivity of alpha- and beta-layers in lizard epidermis

L Alibardi (2002)

Immuno reactivity of alpha- and beta-layers in lizard epidermis


Reptilian epidermis may share some mechanisms of keratinization with those of mammalian and avian epidermis. The expression of keratins and proteins associated with the process of keratinization (filaggrin) and formation of the cell corneus envelope (loricrin) has been analysed at the light microscopic and ultrastructural level in the complex normal and regenerating lizard epidermis. The localization of alpha and beta-keratins, and of filaggrin-like and loricrin-like immunoreactivities has confirmed that the epidermis of lizards consists of two different layers, an alpha-layer localizing alpha-keratins and showing weak filaggrin- and loricrin-like immunoreactivities, as in the mammalian epidermis, and a beta-layer that localizes a beta-keratin immunoreactivity, such as in scutate scales and feathers of birds. The present study suggests that the segregation of alpha- from beta-keratin synthesis is correlated with the evolution of an intraepidermal shedding layer that allows the epidermal molt.

lizard; epidermis; keratins; loricrin; filaggrin; immunocytochemistry
  • ISSN: 0777-6276

ISSN 2295-0451 (online version)
ISSN 0777-6279 (printed version)
impact factor 2015: 0,87.

Prof. Dr. Isa Schön
Royal Belgian Institute of Natural Sciences
Vautierstraat 29
1000 Brussels, Belgium


Annales de la Société malacologique de Belgique
​Annales de la Société royale malacologique et zoologique de Belgique
Annales de la Société Royale Zoologique de Belgique
Belgian Journal of Zoology