Lrig1 controls intestinal stem-cell homeostasis by negative regulation of ErbB signalling
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Lrig1 controls intestinal stem-cell homeostasis by negative regulation of ErbB signalling. / Wong, Vivian W Y; Stange, Daniel E; Page, Mahalia E; Buczacki, Simon; Wabik, Agnieszka; Itami, Satoshi; van de Wetering, Marc; Poulsom, Richard; Wright, Nicholas A; Trotter, Matthew W B; Watt, Fiona M; Winton, Doug J; Clevers, Hans; Jensen, Kim B.
In: Nature Cell Biology, Vol. 14, No. 4, 04.2012, p. 401-8.Research output: Contribution to journal › Journal article › Research
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TY - JOUR
T1 - Lrig1 controls intestinal stem-cell homeostasis by negative regulation of ErbB signalling
AU - Wong, Vivian W Y
AU - Stange, Daniel E
AU - Page, Mahalia E
AU - Buczacki, Simon
AU - Wabik, Agnieszka
AU - Itami, Satoshi
AU - van de Wetering, Marc
AU - Poulsom, Richard
AU - Wright, Nicholas A
AU - Trotter, Matthew W B
AU - Watt, Fiona M
AU - Winton, Doug J
AU - Clevers, Hans
AU - Jensen, Kim B
PY - 2012/4
Y1 - 2012/4
N2 - Maintenance of adult tissues is carried out by stem cells and is sustained throughout life in a highly ordered manner. Homeostasis within the stem-cell compartment is governed by positive- and negative-feedback regulation of instructive extrinsic and intrinsic signals. ErbB signalling is a prerequisite for maintenance of the intestinal epithelium following injury and tumour formation. As ErbB-family ligands and receptors are highly expressed within the stem-cell niche, we hypothesize that strong endogenous regulators must control the pathway in the stem-cell compartment. Here we show that Lrig1, a negative-feedback regulator of the ErbB receptor family, is highly expressed by intestinal stem cells and controls the size of the intestinal stem-cell niche by regulating the amplitude of growth-factor signalling. Intestinal stem-cell maintenance has so far been attributed to a combination of Wnt and Notch activation and Bmpr inhibition. Our findings reveal ErbB activation as a strong inductive signal for stem-cell proliferation. This has implications for our understanding of ErbB signalling in tissue development and maintenance and the progression of malignant disease.
AB - Maintenance of adult tissues is carried out by stem cells and is sustained throughout life in a highly ordered manner. Homeostasis within the stem-cell compartment is governed by positive- and negative-feedback regulation of instructive extrinsic and intrinsic signals. ErbB signalling is a prerequisite for maintenance of the intestinal epithelium following injury and tumour formation. As ErbB-family ligands and receptors are highly expressed within the stem-cell niche, we hypothesize that strong endogenous regulators must control the pathway in the stem-cell compartment. Here we show that Lrig1, a negative-feedback regulator of the ErbB receptor family, is highly expressed by intestinal stem cells and controls the size of the intestinal stem-cell niche by regulating the amplitude of growth-factor signalling. Intestinal stem-cell maintenance has so far been attributed to a combination of Wnt and Notch activation and Bmpr inhibition. Our findings reveal ErbB activation as a strong inductive signal for stem-cell proliferation. This has implications for our understanding of ErbB signalling in tissue development and maintenance and the progression of malignant disease.
KW - Animals
KW - Feedback, Physiological
KW - Gene Expression Profiling
KW - Genes, erbB
KW - Homeostasis
KW - Intestines
KW - Membrane Glycoproteins
KW - Mice
KW - Mice, Inbred Strains
KW - Mice, Knockout
KW - Nerve Tissue Proteins
KW - Receptor, erbB-2
KW - Signal Transduction
KW - Stem Cell Niche
KW - Stem Cells
U2 - 10.1038/ncb2464
DO - 10.1038/ncb2464
M3 - Journal article
C2 - 22388892
VL - 14
SP - 401
EP - 408
JO - Nature Cell Biology
JF - Nature Cell Biology
SN - 1465-7392
IS - 4
ER -
ID: 94414105