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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2000-7-13
pubmed:abstractText
The involvement of 12-lipoxygenase (12-LOX) expression and function in tumor metastasis has been demonstrated in several murine tumor cell lines. In addition, 12-LOX expression was detected in human prostatic tumors and correlated to the clinical stage of disease. Here we provide data that human prostate cancer cell lines express the platelet-type isoform of 12-LOX at both the mRNA and protein levels, and immunohistochemistry revealed 12-LOX expression in human prostate tumors. The enzyme was localized to the plasma membrane, cytoplasmic organelles and nucleus in non-metastatic cells (PC-3 nm) and to the cytoskeleton and nucleus in metastatic cells (DU-145). After orthotopic/intraprostatic injection of tumor cells into SCID mice, the metastatic prostate carcinoma cells (DU-145) expressed 12-LOX at a significantly higher level compared with the non-metastatic counterparts, PC-3nm. The functional involvement of 12-LOX in the metastatic process was demonstrated when DU-145 cells were pretreated in vitro with the 12-LOX inhibitors N-benzyl-N-hydroxy-5-phenylpentamide (BHPP) or baicalein, the use of which significantly inhibited lung colonization. These data suggest a potential involvement of 12-LOX in the progression of human prostate cancer.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0020-7136
pubmed:author
pubmed:copyrightInfo
Copyright 2000 Wiley-Liss, Inc.
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
87
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
37-43
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:10861450-Animals, pubmed-meshheading:10861450-Arachidonate 12-Lipoxygenase, pubmed-meshheading:10861450-Blood Platelets, pubmed-meshheading:10861450-Cell Membrane, pubmed-meshheading:10861450-Cytoplasm, pubmed-meshheading:10861450-Cytoskeleton, pubmed-meshheading:10861450-Disease Progression, pubmed-meshheading:10861450-Flow Cytometry, pubmed-meshheading:10861450-Humans, pubmed-meshheading:10861450-Immunohistochemistry, pubmed-meshheading:10861450-Lipoxygenase Inhibitors, pubmed-meshheading:10861450-Male, pubmed-meshheading:10861450-Mice, pubmed-meshheading:10861450-Mice, SCID, pubmed-meshheading:10861450-Microscopy, Confocal, pubmed-meshheading:10861450-Neoplasm Invasiveness, pubmed-meshheading:10861450-Neoplasm Transplantation, pubmed-meshheading:10861450-Neoplasms, Experimental, pubmed-meshheading:10861450-Phenotype, pubmed-meshheading:10861450-Prostatic Neoplasms, pubmed-meshheading:10861450-Protein Isoforms, pubmed-meshheading:10861450-RNA, Messenger, pubmed-meshheading:10861450-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:10861450-Tumor Cells, Cultured
pubmed:year
2000
pubmed:articleTitle
Expression, subcellular localization and putative function of platelet-type 12-lipoxygenase in human prostate cancer cell lines of different metastatic potential.
pubmed:affiliation
Department of Tumor Progression, National Institute of Oncology, Budapest, Hungary. jtimar@oncol.hu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't