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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2002-10-23
pubmed:abstractText
12-Lipoxygenase (12-LOX), through its metabolite 12( )-hydroxyeicosatetraenoic acid [12( )-HETE], has been demonstrated to play a pivotal role in experimental melanoma invasion and metastasis, and 12-LOX expression may be important in early human melanoma carcinogenesis. We have studied the differences in 12-LOX protein expression during the progression of melanoma from human melanocytic cells to benign and dysplastic naevi to malignant metastatic disease. 12-LOX expression was determined in normal human skin melanocytes and in melanocytes found in compound naevi, dysplastic naevi and melanomas using a platelet-type 12-LOX antibody with a diaminobenzidine immunoperoxidase system detection system and was quantified using the analysis software NIH Image 1.62. Mean cellular pixel densities for 12-LOX staining ( = 50 cells/histological type) were unchanged in compound naevi ( = 0.14) and were increased in dysplastic naevi and melanomas compared with normal skin melanocytes ( = 0.03 and = 0.01, respectively). Similarly, melanomas had higher levels of expression compared with dysplastic naevi ( = 0.03). 12-LOX expression was significantly different between compound naevus and dysplastic naevus melanocytes ( = 0.01). These data suggest that 12-LOX may be an important novel marker for cancer progression within the melanoma system, and therefore could be a useful biomarker and therapeutic target for melanoma chemoprevention.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0960-8931
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
429-34
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Expression of 12-lipoxygenase as a biomarker for melanoma carcinogenesis.
pubmed:affiliation
Department of Internal Medicine, University of Michigan Medical School and VA Medical Center, Ann Arbor, Michigan 48109, USA.
pubmed:publicationType
Journal Article