Bimodal behaviour of interfollicular epidermal progenitors regulated by hair follicle position and cycling.
Identifieur interne : 002301 ( Main/Exploration ); précédent : 002300; suivant : 002302Bimodal behaviour of interfollicular epidermal progenitors regulated by hair follicle position and cycling.
Auteurs : Edwige Roy [Australie] ; Zoltan Neufeld [Australie] ; Luca Cerone [Australie] ; Ho Yi Wong [Australie] ; Samantha Hodgson [Australie] ; Jean Livet [France] ; Kiarash Khosrotehrani [Australie]Source :
- The EMBO journal [ 1460-2075 ] ; 2016.
Descripteurs français
- KwdFr :
- MESH :
- cytologie : Follicule pileux, Peau, Épiderme.
- physiologie : Cellules souches, Kératinocytes.
- Analyse spatio-temporelle, Animaux, Différenciation cellulaire, Modèles théoriques, Prolifération cellulaire, Souris, Techniques cytologiques.
English descriptors
- KwdEn :
- MESH :
- cytology : Epidermis, Hair Follicle, Skin.
- physiology : Keratinocytes, Stem Cells.
- Animals, Cell Differentiation, Cell Proliferation, Cytological Techniques, Mice, Models, Theoretical, Spatio-Temporal Analysis.
Abstract
Interfollicular epidermal (IFE) homeostasis is a major physiological process allowing maintenance of the skin barrier function. Despite progress in our understanding of stem cell populations in different hair follicle compartments, cellular mechanisms of IFE maintenance, in particular, whether a hierarchy of progenitors exists within this compartment, have remained controversial. We here used multicolour lineage tracing with Brainbow transgenic labels activated in the epidermis to track individual keratinocyte clones. Two modes of clonal progression could be observed in the adult murine dorsal skin. Clones attached to hair follicles showed rapid increase in size during the growth phase of the hair cycle. On the other hand, clones distant from hair follicles were slow cycling, but could be mobilized by a proliferative stimulus. Reinforced by mathematical modelling, these data support a model where progenitor cycling characteristics are differentially regulated in areas surrounding or away from growing hair follicles. Thus, while IFE progenitors follow a non-hierarchical mode of development, spatiotemporal control by their environment can change their potentialities, with far-reaching implications for epidermal homeostasis, wound repair and cancer development.
DOI: 10.15252/embj.201693806
PubMed: 27797819
Affiliations:
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wicri:level="1"><nlm:affiliation>School of Mathematics and Physics, The University of Queensland, Brisbane, Qld, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Mathematics and Physics, The University of Queensland, Brisbane, Qld</wicri:regionArea><wicri:noRegion>Qld</wicri:noRegion></affiliation></author><author><name sortKey="Cerone, Luca" sort="Cerone, Luca" uniqKey="Cerone L" first="Luca" last="Cerone">Luca Cerone</name><affiliation wicri:level="1"><nlm:affiliation>School of Mathematics and Physics, The University of Queensland, Brisbane, Qld, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>School of Mathematics and Physics, The University of Queensland, Brisbane, Qld</wicri:regionArea><wicri:noRegion>Qld</wicri:noRegion></affiliation></author><author><name sortKey="Wong, Ho Yi" sort="Wong, Ho Yi" uniqKey="Wong H" first="Ho Yi" last="Wong">Ho Yi Wong</name><affiliation wicri:level="1"><nlm:affiliation>UQ Centre for Clinical Research, Experimental Dermatology Group, The University of Queensland, Brisbane, Qld, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>UQ Centre for Clinical Research, Experimental Dermatology Group, The University of Queensland, Brisbane, Qld</wicri:regionArea><wicri:noRegion>Qld</wicri:noRegion></affiliation></author><author><name sortKey="Hodgson, Samantha" sort="Hodgson, Samantha" uniqKey="Hodgson S" first="Samantha" last="Hodgson">Samantha Hodgson</name><affiliation wicri:level="1"><nlm:affiliation>UQ Centre for Clinical Research, Experimental Dermatology Group, The University of Queensland, Brisbane, Qld, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>UQ Centre for Clinical Research, Experimental Dermatology Group, The University of Queensland, Brisbane, Qld</wicri:regionArea><wicri:noRegion>Qld</wicri:noRegion></affiliation></author><author><name sortKey="Livet, Jean" sort="Livet, Jean" uniqKey="Livet J" first="Jean" last="Livet">Jean Livet</name><affiliation wicri:level="3"><nlm:affiliation>Sorbonne Universités, INSERM, CNRS, Institut de la Vision UPMC Univ Paris 06, Paris, France.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Sorbonne Universités, INSERM, CNRS, Institut de la Vision UPMC Univ Paris 06, Paris</wicri:regionArea><placeName><region type="region">Île-de-France</region><region type="old region">Île-de-France</region><settlement type="city">Paris</settlement></placeName></affiliation></author><author><name sortKey="Khosrotehrani, Kiarash" sort="Khosrotehrani, Kiarash" uniqKey="Khosrotehrani K" first="Kiarash" last="Khosrotehrani">Kiarash Khosrotehrani</name><affiliation wicri:level="1"><nlm:affiliation>UQ Centre for Clinical Research, Experimental Dermatology Group, The University of Queensland, Brisbane, Qld, Australia k.khosrotehrani@uq.edu.au.</nlm:affiliation><country wicri:rule="url">Australie</country><wicri:regionArea>UQ Centre for Clinical Research, Experimental Dermatology Group, The University of Queensland, Brisbane, Qld</wicri:regionArea><wicri:noRegion>Qld</wicri:noRegion></affiliation></author></analytic><series><title level="j">The EMBO journal</title><idno type="eISSN">1460-2075</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Cell Differentiation</term><term>Cell Proliferation</term><term>Cytological Techniques</term><term>Epidermis (cytology)</term><term>Hair Follicle (cytology)</term><term>Keratinocytes (physiology)</term><term>Mice</term><term>Models, Theoretical</term><term>Skin (cytology)</term><term>Spatio-Temporal Analysis</term><term>Stem Cells (physiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Analyse spatio-temporelle</term><term>Animaux</term><term>Cellules souches (physiologie)</term><term>Différenciation cellulaire</term><term>Follicule pileux (cytologie)</term><term>Kératinocytes (physiologie)</term><term>Modèles théoriques</term><term>Peau (cytologie)</term><term>Prolifération cellulaire</term><term>Souris</term><term>Techniques cytologiques</term><term>Épiderme (cytologie)</term></keywords><keywords scheme="MESH" qualifier="cytologie" xml:lang="fr"><term>Follicule pileux</term><term>Peau</term><term>Épiderme</term></keywords><keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Epidermis</term><term>Hair Follicle</term><term>Skin</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Cellules souches</term><term>Kératinocytes</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Keratinocytes</term><term>Stem Cells</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Cell Differentiation</term><term>Cell Proliferation</term><term>Cytological Techniques</term><term>Mice</term><term>Models, Theoretical</term><term>Spatio-Temporal Analysis</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Analyse spatio-temporelle</term><term>Animaux</term><term>Différenciation cellulaire</term><term>Modèles théoriques</term><term>Prolifération cellulaire</term><term>Souris</term><term>Techniques cytologiques</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Interfollicular epidermal (IFE) homeostasis is a major physiological process allowing maintenance of the skin barrier function. Despite progress in our understanding of stem cell populations in different hair follicle compartments, cellular mechanisms of IFE maintenance, in particular, whether a hierarchy of progenitors exists within this compartment, have remained controversial. We here used multicolour lineage tracing with Brainbow transgenic labels activated in the epidermis to track individual keratinocyte clones. Two modes of clonal progression could be observed in the adult murine dorsal skin. Clones attached to hair follicles showed rapid increase in size during the growth phase of the hair cycle. On the other hand, clones distant from hair follicles were slow cycling, but could be mobilized by a proliferative stimulus. Reinforced by mathematical modelling, these data support a model where progenitor cycling characteristics are differentially regulated in areas surrounding or away from growing hair follicles. Thus, while IFE progenitors follow a non-hierarchical mode of development, spatiotemporal control by their environment can change their potentialities, with far-reaching implications for epidermal homeostasis, wound repair and cancer development.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Île-de-France</li></region><settlement><li>Paris</li></settlement></list><tree><country name="Australie"><noRegion><name sortKey="Roy, Edwige" sort="Roy, Edwige" uniqKey="Roy E" first="Edwige" last="Roy">Edwige Roy</name></noRegion><name sortKey="Cerone, Luca" sort="Cerone, Luca" uniqKey="Cerone L" first="Luca" last="Cerone">Luca Cerone</name><name sortKey="Hodgson, Samantha" sort="Hodgson, Samantha" uniqKey="Hodgson S" first="Samantha" last="Hodgson">Samantha Hodgson</name><name sortKey="Khosrotehrani, Kiarash" sort="Khosrotehrani, Kiarash" uniqKey="Khosrotehrani K" first="Kiarash" last="Khosrotehrani">Kiarash Khosrotehrani</name><name sortKey="Neufeld, Zoltan" sort="Neufeld, Zoltan" uniqKey="Neufeld Z" first="Zoltan" last="Neufeld">Zoltan Neufeld</name><name sortKey="Wong, Ho Yi" sort="Wong, Ho Yi" uniqKey="Wong H" first="Ho Yi" last="Wong">Ho Yi Wong</name></country><country name="France"><region name="Île-de-France"><name sortKey="Livet, Jean" sort="Livet, Jean" uniqKey="Livet J" first="Jean" last="Livet">Jean Livet</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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