Source and Impact of the EGF Family of Ligands on Intestinal Stem Cells.

Source and Impact of the EGF Family of Ligands on Intestinal Stem Cells.
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DOI:
10.3389/fcell.2021.685665
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发表时间:
2021
影响因子:
5.5
通讯作者:
Jardé T
Jardé T
中科院分区:
生物学2区
文献类型:
--
作者:
Abud HE;Chan WH;Jardé T

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表皮生长因子(EGF)长期以来因其促进肠上皮细胞增殖的作用而闻名。 EGF 由体内隐窝底部的上皮微环境细胞产生,通常添加到培养基中以支持离体肠道类器官的生长。最近对肠隐窝下方不同基质细胞群的鉴定使得能够表征这些细胞提供的关键生长因子线索。这些信号的性质以及它们如何传递以驱动肠上皮发育、日常稳态和损伤后的组织再生正在研究中。很明显,除了 EGF 之外,该家族的其他配体,包括神经调节蛋白 1 (NRG1),在通过 ErbB 途径支持肠道干细胞功能方面具有独特的作用。
Epidermal Growth Factor (EGF) has long been known for its role in promoting proliferation of intestinal epithelial cells. EGF is produced by epithelial niche cells at the base of crypts in vivo and is routinely added to the culture medium to support the growth of intestinal organoids ex vivo. The recent identification of diverse stromal cell populations that reside underneath intestinal crypts has enabled the characterization of key growth factor cues supplied by these cells. The nature of these signals and how they are delivered to drive intestinal epithelial development, daily homeostasis and tissue regeneration following injury are being investigated. It is clear that aside from EGF, other ligands of the family, including Neuregulin 1 (NRG1), have distinct roles in supporting the function of intestinal stem cells through the ErbB pathway.
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