Linked Life Data

14507660

Source:http://linkedlifedata.com/resource/pubmed/id/14507660

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2003-9-25
pubmed:abstractText
We have previously shown that expression of a dominant-negative type II transforming growth factor-beta receptor (DNIIR) in mammary epithelium under control of the MMTV promoter/enhancer causes alveolar hyperplasia and differentiation in virgin mice. Here we show that MMTV-DNIIR female mice have accelerated mammary gland differentiation during early pregnancy with impaired development during late pregnancy and lactation followed by delayed postlactational involution. Mammary tumors, mostly carcinoma in situ, developed spontaneously in the MMTV-DNIIR mice with a long median latency (27.5 months). Crossbreeding to MMTV-transforming growth factor (TGF)-alpha mice to obtain mice expressing both transgenes resulted in mammary tumor formation with a much shorter latency more similar to those expressing only the MMTV-TGF-alpha transgene (<10 months median latency). The major difference in mammary tumors arising in MMTV-TGF-alpha compared to bigenic MMTV-DNIIR/MMTV-TGF-alpha was the marked suppression of tumor invasion by DNIIR transgene expression. Invading carcinoma cells in both MMTV-DNIIR and bigenic animals showed loss of DNIIR transgene expression as determined by in situ hybridization. The data indicate that signaling from endogenous TGF-betas not only plays an important role in normal mammary gland physiology but also can also suppress the early stage of tumor formation and contribute to tumor invasion once carcinomas have developed.
pubmed:grant
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-10713680, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-10815804, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-10862748, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-11149423, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-11250698, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-11250702, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-11278747, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-11304693, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-11402321, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-11586292, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-11684442, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-12070302, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-12198241, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-1316084, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-1359541, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-1530875, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-1662559, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-1821856, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-2161707, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-3032456, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-3474783, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-7753792, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-7883078, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-8253379, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-8416990, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-8491177, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-8983080, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-9184209, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-9407968, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-9543389, http://linkedlifedata.com/resource/pubmed/commentcorrection/14507660-9671311
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0002-9440
pubmed:author
pubmed:issnType
Print
pubmed:volume
163
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1539-49
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed-meshheading:14507660-Animals, pubmed-meshheading:14507660-Carcinoma, pubmed-meshheading:14507660-Female, pubmed-meshheading:14507660-Gene Expression, pubmed-meshheading:14507660-Genes, Dominant, pubmed-meshheading:14507660-Genes, Viral, pubmed-meshheading:14507660-Lactation, pubmed-meshheading:14507660-Mammary Glands, Animal, pubmed-meshheading:14507660-Mammary Neoplasms, Animal, pubmed-meshheading:14507660-Mammary Tumor Virus, Mouse, pubmed-meshheading:14507660-Mice, pubmed-meshheading:14507660-Mice, Transgenic, pubmed-meshheading:14507660-Mutation, pubmed-meshheading:14507660-Neoplasm Invasiveness, pubmed-meshheading:14507660-Pregnancy, pubmed-meshheading:14507660-Promoter Regions, Genetic, pubmed-meshheading:14507660-Receptors, Transforming Growth Factor beta, pubmed-meshheading:14507660-Transforming Growth Factor alpha, pubmed-meshheading:14507660-Transforming Growth Factor beta, pubmed-meshheading:14507660-Transforming Growth Factor beta2
pubmed:year
2003
pubmed:articleTitle
Transgenic mice expressing a dominant-negative mutant type II transforming growth factor-beta receptor exhibit impaired mammary development and enhanced mammary tumor formation.
pubmed:affiliation
Vanderbilt-Ingram Cancer Center and the Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.