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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-2-24
pubmed:abstractText
MUC18, a cell adhesion molecule (CAM), has been reported to be a diagnostic marker for the early detection of the metastatic potential of prostate cancers as well as implicated to be an important determinant for mediating the tumorigenesis and metastasis of prostate cancer. To test the hypothesis, we further investigated the possible role of MUC18 in the malignant progression of human prostate cancer. The human MUC18-minus, non-metastatic human prostate cancer LNCaP cells were transfected with the human cytomegalovirus immediate-early gene (HCMV-IE) promoter-driven human MUC18 (huMUC18) cDNA. The G418-resistant (G418R)-LNCaP clones that expressed a high level of huMUC18 were selected and used for testing the effect of huMUC18 expression on the in vitro growth, motility, and invasiveness as well as on the in vivo metastasis (via orthotopical injection) in a xenograft nude mouse model. HuMUC18 expression increased by four- to fivefold of in vitro motility and invasiveness of LNCaP cells. Anti-huMUC18 antibody significantly inhibited the in vitro motility and invasiveness of huMUC18-expressing LNCaP clones, but not the control clones. We suggest that huMUC18 expression is responsible for increasing these behaviors of LNCaP cells. HuMUC18 expression also directly increased the in vivo metastatic abilities of the LNCaP cells from the prostate gland to multiple distant organs. Western blot and immunohistochemistry analyses showed that the prostatic tumors as well as metastatic lesions expressed high levels of MUC18, indicating that they originated from the injected huMUC18-expressing LNCaP cells. We therefore conclude that HuMUC18 is an important determinant in increasing metastasis of human prostate cancer LNCaP cells to distant organs in a nude mouse model.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0378-1119
pubmed:author
pubmed:issnType
Print
pubmed:day
3
pubmed:volume
327
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
201-13
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:14980717-Animals, pubmed-meshheading:14980717-Antigens, CD, pubmed-meshheading:14980717-Antigens, CD146, pubmed-meshheading:14980717-Cell Division, pubmed-meshheading:14980717-Cell Line, Tumor, pubmed-meshheading:14980717-Cell Movement, pubmed-meshheading:14980717-Clone Cells, pubmed-meshheading:14980717-Gene Expression, pubmed-meshheading:14980717-Humans, pubmed-meshheading:14980717-Male, pubmed-meshheading:14980717-Membrane Glycoproteins, pubmed-meshheading:14980717-Mice, pubmed-meshheading:14980717-Mice, Nude, pubmed-meshheading:14980717-Neoplasm Invasiveness, pubmed-meshheading:14980717-Neoplasm Metastasis, pubmed-meshheading:14980717-Neoplasm Transplantation, pubmed-meshheading:14980717-Neural Cell Adhesion Molecules, pubmed-meshheading:14980717-Prostatic Neoplasms, pubmed-meshheading:14980717-Transplantation, Heterologous
pubmed:year
2004
pubmed:articleTitle
Ectopical expression of human MUC18 increases metastasis of human prostate cancer cells.
pubmed:affiliation
Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322, USA. wu@microbio.emory.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't