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Wounding induces dedifferentiation of epidermal Gata6+ cells and acquisition of stem cell properties
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Wounding induces dedifferentiation of epidermal Gata6+ cells and acquisition of stem cell properties
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Journal Article
Wounding induces dedifferentiation of epidermal Gata6+ cells and acquisition of stem cell properties
2017
Overview
The epidermis is maintained by multiple stem cell populations whose progeny differentiate along diverse, and spatially distinct, lineages. Here we show that the transcription factor Gata6 controls the identity of the previously uncharacterized sebaceous duct (SD) lineage and identify the Gata6 downstream transcription factor network that specifies a lineage switch between sebocytes and SD cells. During wound healing differentiated Gata6
+
cells migrate from the SD into the interfollicular epidermis and dedifferentiate, acquiring the ability to undergo long-term self-renewal and differentiate into a much wider range of epidermal lineages than in undamaged tissue. Our data not only demonstrate that the structural and functional complexity of the junctional zone is regulated by Gata6, but also reveal that dedifferentiation is a previously unrecognized property of post-mitotic, terminally differentiated cells that have lost contact with the basement membrane. This resolves the long-standing debate about the contribution of terminally differentiated cells to epidermal wound repair.
Donati
et al.
show that following skin wounding a differentiated Gata6
+
cell population resident in the sebaceous duct migrates to the interfollicular epidermis and reattaches to the basal membrane, dedifferentiating into stem cells.
Publisher
Nature Publishing Group UK,Nature Publishing Group
Subject
/ 13/106
/ 13/31
/ 13/51
/ 14/19
/ 38/23
/ 38/39
/ 38/77
/ 64/60
/ Animals
/ Female
/ GATA6 Transcription Factor - deficiency
/ GATA6 Transcription Factor - genetics
/ GATA6 Transcription Factor - metabolism
/ Male
/ Positive Regulatory Domain I-Binding Factor 1
/ Progeny
/ Sebaceous Glands - metabolism
/ Sebaceous Glands - pathology
/ Structure-function relationships
/ Transcription Factors - genetics
/ Transcription Factors - metabolism
/ Wounds and Injuries - genetics
