Mammalian Epidermis: A Compendium of Lipid Functionality

Mammalian epidermis is a striking example of the role of lipids in tissue biology. In this stratified epithelium, highly specialized structures are formed that leverage the hydrophobic properties of lipids to form an impermeable barrier and protect the humid internal environment of the body from the...

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Main Authors: Matteo Vietri Rudan, Fiona M. Watt
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-01-01
Series:Frontiers in Physiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphys.2021.804824/full
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author Matteo Vietri Rudan
Fiona M. Watt
author_facet Matteo Vietri Rudan
Fiona M. Watt
author_sort Matteo Vietri Rudan
collection DOAJ
description Mammalian epidermis is a striking example of the role of lipids in tissue biology. In this stratified epithelium, highly specialized structures are formed that leverage the hydrophobic properties of lipids to form an impermeable barrier and protect the humid internal environment of the body from the dry outside. This is achieved through tightly regulated lipid synthesis that generates the molecular species unique to the tissue. Beyond their fundamental structural role, lipids are involved in the active protection of the body from external insults. Lipid species present on the surface of the body possess antimicrobial activity and directly contribute to shaping the commensal microbiota. Lipids belonging to a variety of classes are also involved in the signaling events that modulate the immune responses to environmental stress as well as differentiation of the epidermal keratinocytes themselves. Recently, high-resolution methods are beginning to provide evidence for the involvement of newly identified specific lipid molecules in the regulation of epidermal homeostasis. In this review we give an overview of the wide range of biological functions of mammalian epidermal lipids.
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spelling doaj.art-f10b20b5444a41de9406f6e1a58aff352022-12-21T16:35:02ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2022-01-011210.3389/fphys.2021.804824804824Mammalian Epidermis: A Compendium of Lipid FunctionalityMatteo Vietri RudanFiona M. WattMammalian epidermis is a striking example of the role of lipids in tissue biology. In this stratified epithelium, highly specialized structures are formed that leverage the hydrophobic properties of lipids to form an impermeable barrier and protect the humid internal environment of the body from the dry outside. This is achieved through tightly regulated lipid synthesis that generates the molecular species unique to the tissue. Beyond their fundamental structural role, lipids are involved in the active protection of the body from external insults. Lipid species present on the surface of the body possess antimicrobial activity and directly contribute to shaping the commensal microbiota. Lipids belonging to a variety of classes are also involved in the signaling events that modulate the immune responses to environmental stress as well as differentiation of the epidermal keratinocytes themselves. Recently, high-resolution methods are beginning to provide evidence for the involvement of newly identified specific lipid molecules in the regulation of epidermal homeostasis. In this review we give an overview of the wide range of biological functions of mammalian epidermal lipids.https://www.frontiersin.org/articles/10.3389/fphys.2021.804824/fulllipidsepidermiskeratinocytesceramidessignalingfatty acids
spellingShingle Matteo Vietri Rudan
Fiona M. Watt
Mammalian Epidermis: A Compendium of Lipid Functionality
Frontiers in Physiology
lipids
epidermis
keratinocytes
ceramides
signaling
fatty acids
title Mammalian Epidermis: A Compendium of Lipid Functionality
title_full Mammalian Epidermis: A Compendium of Lipid Functionality
title_fullStr Mammalian Epidermis: A Compendium of Lipid Functionality
title_full_unstemmed Mammalian Epidermis: A Compendium of Lipid Functionality
title_short Mammalian Epidermis: A Compendium of Lipid Functionality
title_sort mammalian epidermis a compendium of lipid functionality
topic lipids
epidermis
keratinocytes
ceramides
signaling
fatty acids
url https://www.frontiersin.org/articles/10.3389/fphys.2021.804824/full
work_keys_str_mv AT matteovietrirudan mammalianepidermisacompendiumoflipidfunctionality
AT fionamwatt mammalianepidermisacompendiumoflipidfunctionality