Linked Life Data

12819188

Source:http://linkedlifedata.com/resource/pubmed/id/12819188

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2003-9-8
pubmed:abstractText
To help identify genes, which may regulate metastasis in lung cancer, we performed representational difference analysis between a patient-derived non-small cell lung carcinoma (NSCLC) and immortalized normal human bronchial epithelial cells. This analysis revealed that bone morphogenetic proteins-2/4 (BMP) mRNA was expressed in the lung carcinoma. BMP-2/4 are known to induce pluripotent cell differentiation, enhance cell migration and stimulate proliferation during embryonic development. Despite being powerful morphogens it is not known whether BMP-2/4 have significant biological activity in human carcinomas. Furthermore, it has not been established whether the mature active BMP-2/4 protein is aberrantly expressed in patient-derived tumors. The purpose of this study was to determine whether the expression of the mature BMP-2/4 protein is disregulated in human lung carcinomas and to establish whether it has adverse biological activity. This study reveals that the mature BMP-2 protein, but not BMP-4, is highly over-expressed in human NCSLC with little to no expression in normal lung tissue or benign lung tumors. The expression of BMP-2 localized specifically to the cancer cells. Recombinant BMP-2 stimulated in vitro, the migration and invasiveness of the A549 and H7249 human lung cancer cell lines. In vivo, recombinant BMP-2 enhanced the growth of tumors formed from A549 cells injected subcutaneously into nude mice. Furthermore, inhibition of BMP-2 activity with either recombinant noggin or anti-BMP-2 antibody resulted in a significant reduction in tumor growth. This study shows that expression of the mature BMP-2 protein is disregulated in the majority of NSCLC. BMP-2 enhancement of tumor cell migration and invasion, as well as stimulating tumor growth in vivo, suggests it has important biological activity in lung carcinomas.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0143-3334
pubmed:author
pubmed:issnType
Print
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1445-54
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
The mature bone morphogenetic protein-2 is aberrantly expressed in non-small cell lung carcinomas and stimulates tumor growth of A549 cells.
pubmed:affiliation
Department of Surgery, Division of Thoracic Surgery, UMDNJ-Robert Wood Johnson Medical School, One Robert Wood Johnson Place, PO Box 19, New Brunswick, NJ 08903-0019, USA. langenje@umdnj.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't