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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2006-2-17
pubmed:abstractText
There are multiple reports of autoimmune response in patients with lung cancer. To investigate whether a novel autoantibody is present in patients with lung cancer and evaluate its clinical diagnostic and prognostic value, sera from 10 patients with lung cancer and 10 normal individuals were analyzed using immunofluorescence and Western blotting. It was found that one serum sample from the patients with squamous carcinoma gave a fine speckled pattern staining in nucleus and had a high titer antinuclear autoantibody which could recognize 31 kD of nuclear protein isolated from both cancer cells and normal cells. The same patient's serum was further used to immunoprecipitate the target antigen. The protein bands were excised from the SDS-PAGE gels and were analyzed with a Qstar Pulser I Quadrupole time-flight mass spectrometer, and the 31 kD target antigen was identified as U1-A snRNP. To test the prevalence of anti-U1-A snRNP antibody, sera from 93 patients including 36 squmaous carcinomas (SCC), 26 adenocarcinomas (Ad), and 31 small cell carcinomas (SCLC) were screened by Western blotting. The results demonstrated that anti-U1-A snRNP antibody was present in 50% of SCC sera, 26.9% of Ad sera and 54.8% of SCLC sera. In this paper, we report for the first time that anti-U1-A snRNP antibody could be detected in the patients with lung cancer.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1006-9305
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
641-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:16483144-Adenocarcinoma, pubmed-meshheading:16483144-Antibodies, Neoplasm, pubmed-meshheading:16483144-Autoantibodies, pubmed-meshheading:16483144-Blotting, Western, pubmed-meshheading:16483144-Carcinoma, Small Cell, pubmed-meshheading:16483144-Carcinoma, Squamous Cell, pubmed-meshheading:16483144-Case-Control Studies, pubmed-meshheading:16483144-Fluorescent Antibody Technique, Indirect, pubmed-meshheading:16483144-Humans, pubmed-meshheading:16483144-Lung Neoplasms, pubmed-meshheading:16483144-Male, pubmed-meshheading:16483144-Nuclear Proteins, pubmed-meshheading:16483144-Prevalence, pubmed-meshheading:16483144-Prognosis, pubmed-meshheading:16483144-Protein Array Analysis, pubmed-meshheading:16483144-RNA-Binding Proteins, pubmed-meshheading:16483144-Ribonucleoprotein, U1 Small Nuclear, pubmed-meshheading:16483144-Spectrometry, Mass, Matrix-Assisted Laser...
pubmed:year
2005
pubmed:articleTitle
Discovery and identification of anti-U1-A snRNP antibody in lung cancer.
pubmed:affiliation
Key Laboratory of Cell Proliferation and Regulation of Ministry of Education, Beijing Normal University, Beijing 100875, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't