Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2011-5-17
pubmed:abstractText
The human gene Ptpn11, which encodes the tyrosine phosphatase Shp2, may act as a proto-oncogene because dominantly activating mutations have been detected in several types of leukemia. Herein we report a tumor-suppressor function of Shp2. Hepatocyte-specific deletion of Shp2 promotes inflammatory signaling through the Stat3 pathway and hepatic inflammation/necrosis, resulting in regenerative hyperplasia and development of tumors in aged mice. Furthermore, Shp2 ablation dramatically enhanced diethylnitrosamine (DEN)-induced hepatocellular carcinoma (HCC) development, which was abolished by concurrent deletion of Shp2 and Stat3 in hepatocytes. Decreased Shp2 expression was detected in a subfraction of human HCC specimens. Thus, in contrast to the leukemogenic effect of dominant-active mutants, Ptpn11/Shp2 has a tumor-suppressor function in liver.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/Cytokines, http://linkedlifedata.com/resource/pubmed/chemical/Diethylnitrosamine, http://linkedlifedata.com/resource/pubmed/chemical/Inflammation Mediators, http://linkedlifedata.com/resource/pubmed/chemical/Interleukin-6, http://linkedlifedata.com/resource/pubmed/chemical/Lipopolysaccharides, http://linkedlifedata.com/resource/pubmed/chemical/PTPN11 protein, human, http://linkedlifedata.com/resource/pubmed/chemical/Protein Tyrosine Phosphatase..., http://linkedlifedata.com/resource/pubmed/chemical/Ptpn11 protein, mouse, http://linkedlifedata.com/resource/pubmed/chemical/STAT3 Transcription Factor, http://linkedlifedata.com/resource/pubmed/chemical/Stat3 protein, mouse, http://linkedlifedata.com/resource/pubmed/chemical/Tumor Suppressor Proteins
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1878-3686
pubmed:author
pubmed:copyrightInfo
Copyright © 2011 Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
17
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
629-39
pubmed:meshHeading
pubmed-meshheading:21575863-Adenoma, Liver Cell, pubmed-meshheading:21575863-Animals, pubmed-meshheading:21575863-Carcinoma, Hepatocellular, pubmed-meshheading:21575863-Cytokines, pubmed-meshheading:21575863-Diethylnitrosamine, pubmed-meshheading:21575863-Gene Expression Regulation, pubmed-meshheading:21575863-Hepatitis, pubmed-meshheading:21575863-Humans, pubmed-meshheading:21575863-Hyperplasia, pubmed-meshheading:21575863-Inflammation Mediators, pubmed-meshheading:21575863-Interleukin-6, pubmed-meshheading:21575863-Lipopolysaccharides, pubmed-meshheading:21575863-Liver, pubmed-meshheading:21575863-Liver Neoplasms, pubmed-meshheading:21575863-Liver Regeneration, pubmed-meshheading:21575863-Male, pubmed-meshheading:21575863-Mice, pubmed-meshheading:21575863-Mice, Inbred C57BL, pubmed-meshheading:21575863-Mice, Knockout, pubmed-meshheading:21575863-Necrosis, pubmed-meshheading:21575863-Protein Tyrosine Phosphatase, Non-Receptor Type 11, pubmed-meshheading:21575863-STAT3 Transcription Factor, pubmed-meshheading:21575863-Signal Transduction, pubmed-meshheading:21575863-Time Factors, pubmed-meshheading:21575863-Tumor Suppressor Proteins
pubmed:year
2011
pubmed:articleTitle
Ptpn11/Shp2 acts as a tumor suppressor in hepatocellular carcinogenesis.
pubmed:affiliation
Department of Pathology, University of California San Diego, La Jolla, CA 92093-0864, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural