A single progenitor population switches behavior to maintain and repair esophageal epithelium.
A single progenitor population switches behavior to maintain and repair esophageal epithelium.
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DOI:
10.1126/science.1218835
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发表时间:
2012-08-31
期刊:
影响因子:
--
通讯作者:
Jones PH
中科院分区:
文献类型:
--
作者:
Doupé DP;Alcolea MP;Roshan A;Zhang G;Klein AM;Simons BD;Jones PH
Diseases of esophageal epithelium (EE) such as reflux esophagitis and cancer are rising in incidence. Despite this, the cellular behaviors underlying EE homeostasis and repair remain controversial. Here we show that in mice, EE is maintained by a single population of cells that divide stochastically to generate proliferating and differentiating daughters with equal probability. In response to challenge with all-trans Retinoic Acid (atRA) the balance of daughter cell fate is unaltered but the rate of cell division increases. However, following wounding, cells reversibly switch to producing an excess of proliferating daughters until the wound has closed. Such fate switching enables a single progenitor population to both maintain and repair tissue without the need for a “reserve” slow-cycling stem cell pool.
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作者:
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通讯作者:
LEBLOND, CP
影响因子:
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