Epidermal stem cell diversity and quiescence
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Epidermal stem cell diversity and quiescence. / Watt, Fiona M; Jensen, Kim B.
In: E M B O Molecular Medicine (Online), Vol. 1, No. 5, 08.2009, p. 260-7.Research output: Contribution to journal › Journal article › Research
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TY - JOUR
T1 - Epidermal stem cell diversity and quiescence
AU - Watt, Fiona M
AU - Jensen, Kim B
PY - 2009/8
Y1 - 2009/8
N2 - Mammalian epidermis is maintained by self-renewal of stem cells and terminal differentiation of their progeny. New data reveal a diversity amongst stem cells that was previously unrecognized. Different stem cell populations have different locations and differ in whether they are quiescent or actively cycling. During normal epidermal homeostasis, each stem cell population feeds a restricted number of differentiated lineages. However, in response to injury or genetic manipulation the different pools of stem cells demonstrate multi-lineage differentiation ability. While it is well established that Wnt signalling promotes hair follicle (HF) differentiation, new observations suggest a role for EGF receptor signalling in promoting differentiation of interfollicular epidermis. NFATc1 maintains quiescence in the HF, while Lrig1 exerts the same function in the junctional zone. The stage is now set for exploring the relationship between the different epidermal stem cell populations and between quiescence and lineage selection.
AB - Mammalian epidermis is maintained by self-renewal of stem cells and terminal differentiation of their progeny. New data reveal a diversity amongst stem cells that was previously unrecognized. Different stem cell populations have different locations and differ in whether they are quiescent or actively cycling. During normal epidermal homeostasis, each stem cell population feeds a restricted number of differentiated lineages. However, in response to injury or genetic manipulation the different pools of stem cells demonstrate multi-lineage differentiation ability. While it is well established that Wnt signalling promotes hair follicle (HF) differentiation, new observations suggest a role for EGF receptor signalling in promoting differentiation of interfollicular epidermis. NFATc1 maintains quiescence in the HF, while Lrig1 exerts the same function in the junctional zone. The stage is now set for exploring the relationship between the different epidermal stem cell populations and between quiescence and lineage selection.
KW - Animals
KW - Cell Differentiation
KW - Cell Lineage
KW - Cell Proliferation
KW - Epidermis
KW - Hair Follicle
KW - Humans
KW - Mice
KW - Signal Transduction
KW - Stem Cells
U2 - 10.1002/emmm.200900033
DO - 10.1002/emmm.200900033
M3 - Journal article
C2 - 20049729
VL - 1
SP - 260
EP - 267
JO - EMBO Molecular Medicine
JF - EMBO Molecular Medicine
SN - 1757-4676
IS - 5
ER -
ID: 94414400