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A novel ultrastructure on the corneocyte surface of mammalian nasolabial skin.

Elofsson, Rolf LU ; Tuminaite, Inga LU and Kröger, Ronald LU (2016) In Journal of Mammalogy 97(5). p.1288-1294
Abstract
In many mammals, the skin of the rhinarium includes a thick epidermal layer. The skin surface can be smooth but can also display a structure formed of domes, ridges, and polygonal areas: a dermatoglyphic or rhinoglyphic pattern. Each structure consists of an easily visible, large area of the epidermis. The abdominal epidermis may or may not have a dermatoglyphic pattern. The abdominal skin examined in our study had no pattern and was consequently unstructured and smooth. The ultrastructural surface pattern is formed in the granular and corneous regions of nasal epidermis by desmosome protrusions projecting into adjacent keratinocytes. Complete retraction of the keratinocyte protrusions with desmosomes in the abdominal epidermis creates an... (More)
In many mammals, the skin of the rhinarium includes a thick epidermal layer. The skin surface can be smooth but can also display a structure formed of domes, ridges, and polygonal areas: a dermatoglyphic or rhinoglyphic pattern. Each structure consists of an easily visible, large area of the epidermis. The abdominal epidermis may or may not have a dermatoglyphic pattern. The abdominal skin examined in our study had no pattern and was consequently unstructured and smooth. The ultrastructural surface pattern is formed in the granular and corneous regions of nasal epidermis by desmosome protrusions projecting into adjacent keratinocytes. Complete retraction of the keratinocyte protrusions with desmosomes in the abdominal epidermis creates an unstructured, smooth surface. The cornification process differs morphologically in nasolabial and abdominal skin. In this study, we report a novel structure in the nose skin. It is related only to the surface of a single corneocyte (keratinocyte) and consists of submicrometer pores or furrows, an ultrastructure pattern. It is not related to the rhinoglyphic pattern. The nose skin can thus have 2 unrelated patterns. This structure seems to be widespread among the Mammalia. We suggest the function of the structure is to keep the rhinarium evenly moist. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Mammalogy
volume
97
issue
5
pages
7 pages
publisher
Alliance Communications Group Division Allen Press
external identifiers
  • scopus:84991088921
  • wos:000385628300004
ISSN
0022-2372
DOI
10.1093/jmammal/gyw112
language
English
LU publication?
yes
id
c131af32-9917-44d6-a034-0c9cb7a017d3
date added to LUP
2016-10-28 22:09:47
date last changed
2017-07-09 04:54:20
@article{c131af32-9917-44d6-a034-0c9cb7a017d3,
  abstract     = {In many mammals, the skin of the rhinarium includes a thick epidermal layer. The skin surface can be smooth but can also display a structure formed of domes, ridges, and polygonal areas: a dermatoglyphic or rhinoglyphic pattern. Each structure consists of an easily visible, large area of the epidermis. The abdominal epidermis may or may not have a dermatoglyphic pattern. The abdominal skin examined in our study had no pattern and was consequently unstructured and smooth. The ultrastructural surface pattern is formed in the granular and corneous regions of nasal epidermis by desmosome protrusions projecting into adjacent keratinocytes. Complete retraction of the keratinocyte protrusions with desmosomes in the abdominal epidermis creates an unstructured, smooth surface. The cornification process differs morphologically in nasolabial and abdominal skin. In this study, we report a novel structure in the nose skin. It is related only to the surface of a single corneocyte (keratinocyte) and consists of submicrometer pores or furrows, an ultrastructure pattern. It is not related to the rhinoglyphic pattern. The nose skin can thus have 2 unrelated patterns. This structure seems to be widespread among the Mammalia. We suggest the function of the structure is to keep the rhinarium evenly moist.},
  author       = {Elofsson, Rolf and Tuminaite, Inga and Kröger, Ronald},
  issn         = {0022-2372},
  language     = {eng},
  number       = {5},
  pages        = {1288--1294},
  publisher    = {Alliance Communications Group Division Allen Press},
  series       = {Journal of Mammalogy},
  title        = {A novel ultrastructure on the corneocyte surface of mammalian nasolabial skin.},
  url          = {http://dx.doi.org/10.1093/jmammal/gyw112},
  volume       = {97},
  year         = {2016},
}