The Hippo signaling pathway restricts the oncogenic potential of an intestinal regeneration program

Although a developmental role for Hippo signaling in organ size control is well appreciated, how this pathway functions in tissue regeneration is largely unknown. Here we address this issue using a dextran sodium sulfate (DSS)-induced colonic regeneration model. We find that regenerating crypts expr...

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Veröffentlicht in:Genes & development 2010-11, Vol.24 (21), p.2383-2388
Hauptverfasser: Cai, Jing, Zhang, Nailing, Zheng, Yonggang, de Wilde, Roeland F, Maitra, Anirban, Pan, Duojia
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container_end_page 2388
container_issue 21
container_start_page 2383
container_title Genes & development
container_volume 24
creator Cai, Jing
Zhang, Nailing
Zheng, Yonggang
de Wilde, Roeland F
Maitra, Anirban
Pan, Duojia
description Although a developmental role for Hippo signaling in organ size control is well appreciated, how this pathway functions in tissue regeneration is largely unknown. Here we address this issue using a dextran sodium sulfate (DSS)-induced colonic regeneration model. We find that regenerating crypts express elevated Yes-associated protein (YAP) levels. Inactivation of YAP causes no obvious intestinal defects under normal homeostasis, but severely impairs DSS-induced intestinal regeneration. Conversely, hyperactivation of YAP results in widespread early-onset polyp formation following DSS treatment. Thus, the YAP oncoprotein must be exquisitely controlled in tissue regeneration to allow compensatory proliferation and prevent the intrinsic oncogenic potential of a tissue regeneration program.
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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central
subjects Adaptor Proteins, Signal Transducing - deficiency
Adaptor Proteins, Signal Transducing - genetics
Adaptor Proteins, Signal Transducing - physiology
Animals
Blotting, Western
Cell Cycle Proteins - genetics
Cell Cycle Proteins - metabolism
Colonic Polyps - chemically induced
Colonic Polyps - genetics
Colonic Polyps - physiopathology
Dextran Sulfate
Drosophila Proteins - genetics
Drosophila Proteins - metabolism
Female
Gene Expression
Humans
Immunohistochemistry
Intestinal Mucosa - metabolism
Intestines - pathology
Intestines - physiopathology
Intracellular Signaling Peptides and Proteins - genetics
Intracellular Signaling Peptides and Proteins - metabolism
Male
Mice
Mice, Inbred C57BL
Mice, Knockout
Phosphoproteins - deficiency
Phosphoproteins - genetics
Phosphoproteins - physiology
Protein-Serine-Threonine Kinases - genetics
Protein-Serine-Threonine Kinases - metabolism
Regeneration - genetics
Regeneration - physiology
Research Communication
Reverse Transcriptase Polymerase Chain Reaction
RNA, Messenger - genetics
RNA, Messenger - metabolism
Signal Transduction - genetics
Signal Transduction - physiology
title The Hippo signaling pathway restricts the oncogenic potential of an intestinal regeneration program
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