Self-organizing and stochastic behaviors during the regeneration of hair stem cells.

Self-organizing and stochastic behaviors during the regeneration of hair stem cells.
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DOI:
10.1126/science.1201647
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发表时间:
2011-04-29
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Chuong CM
Chuong CM
中科院分区:
其他
文献类型:
--
作者:
Plikus MV;Baker RE;Chen CC;Fare C;de la Cruz D;Andl T;Maini PK;Millar SE;Widelitz R;Chuong CM

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Stem cells cycle through active and quiescent states. Large populations of stem cells in an organ may cycle randomly or in a coordinated manner. Although stem cell cycling within single hair follicles has been studied, less is known about regenerative behavior in a hair follicle population. By combining predictive mathematical modeling with in vivo studies in mice and rabbits, we show that a follicle progresses through cycling stages by continuous integration of inputs from intrinsic follicular and extrinsic environmental signals based on universal patterning principles. Signaling from the WNT/bone morphogenetic protein activator/inhibitor pair is coopted to mediate interactions among follicles in the population. This regenerative strategy is robust and versatile because relative activator/inhibitor strengths can be modulated easily, adapting the organism to different physiological and evolutionary needs.
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