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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-6-1
pubmed:abstractText
There are urgent needs to develop methods for early detection of nonsmall cell lung cancer (NSCLC) because of its increasing incidence and poor prognosis. Here, we analyzed the production of IgG antibody (WT1 Ab) against WT1 (Wilms' tumor gene) protein that was overexpressed in the majority of NSCLC. Enzyme-linked immuno-sorbent assay showed that WT1 Ab was produced in all of 91 NSCLC patients and 70 healthy individuals and that WT1 Ab titers were significantly higher in NSCLC patients compared with healthy individuals. When the cut-off level of WT1 Ab titers were fixed at mean + 3SD of those in healthy individuals, 26.4% of NSCLC patients had WT1 Ab titers over the cut-off level, and positive rates of WT1 Ab at each clinical stage were 25.0, 30.8 and 38.4% in stage I, II and III NSCLC, respectively. When WT1 Ab was combined with CEA or CYFRA for detection of NSCLC, positive detection rates increased from 25.0 to 34.1 and 31.8%, respectively, in stage I and from 38.4 to 69.2 and 46.1%, respectively, in stage III, but not changed in stage II. Western blot analysis showed that dominant subclass of WT1 Ab was Th1-type IgG2. Interestingly, elevation of WT1 Ab titers was significantly associated with longer disease-free survival in patients with stages I-III NSCLC. These results showed that WT1 Ab could be a useful marker for early detection of NSCLC and its prognostic prediction. These results also suggested that WT1-specific immune responses played an important role in anti-cancer immunity in NSCLC.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1097-0215
pubmed:author
pubmed-author:AozasaKatsuyukiK, pubmed-author:FukudaIkuyoI, pubmed-author:HosenNaokiN, pubmed-author:HutzliCC, pubmed-author:InoueMasayoshiM, pubmed-author:KawaseIchiroI, pubmed-author:KitamuraYayoiY, pubmed-author:KitanoAikoA, pubmed-author:MaedaHajimeH, pubmed-author:MiyazakiKaoriK, pubmed-author:MiyoshiShinichiroS, pubmed-author:MoriMasahideM, pubmed-author:NakamuraJunyaJ, pubmed-author:NakamuraMichiyoM, pubmed-author:NakatsukaShin-ichiS, pubmed-author:NezuRiichiroR, pubmed-author:NishidaSumiyukiS, pubmed-author:OjiYusukeY, pubmed-author:OkaYoshihiroY, pubmed-author:OkumuraMeinoshinM, pubmed-author:SakaguchiNaoN, pubmed-author:SawabataNoriyoshiN, pubmed-author:ShirakataToshiakiT, pubmed-author:SugiyamaHaruoH, pubmed-author:TakakuwaTetsuyaT, pubmed-author:TatsumiNaoyaN, pubmed-author:TsuboiAkihiroA
pubmed:copyrightInfo
Copyright 2009 UICC.
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
125
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
381-7
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
WT1 IgG antibody for early detection of nonsmall cell lung cancer and as its prognostic factor.
pubmed:affiliation
Department of Biomedical Informatics, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't