Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2006-3-9
pubmed:abstractText
p53 wild-type is a tumor suppressor gene involved in DNA gene transcription or DNA repair mechanisms. When damage to DNA is unrepairable, p53 induces programmed cell death (apoptosis). The mutant p53 gene is the most frequent molecular alteration in human cancer, including breast cancer. Here, we analyzed the genetic alterations in p53 oncogene expression in 55 patients with breast cancer at different stages and in 8 normal women. We measured by ELISA assay the serum levels of p53 mutant protein and p53 antibodies. Immunohistochemistry and RT-PCR using specific p53 primers as well as mutation detection by DNA sequencing were also evaluated in breast tumor tissue. Serological p53 antibody analysis detected 0/8 (0%), 0/4 (0%) and 9/55 (16.36%) positive cases in normal women, in patients with benign breast disease and in breast carcinoma, respectively. We found positive p53 mutant in the sera of 0/8 (0.0%) normal women, 0/4 (0%) with benign breast disease and 29/55 (52.72%) with breast carcinoma. Immunohistochemistry evaluation was positive in 29/55 (52.73%) with mammary carcinoma and 0/4 (0%) with benign breast disease. A very good correlation between p53 mutant protein detected in serum and p53 accumulation by immunohistochemistry (83.3% positive in both assays) was found in this study. These data suggest that detection of mutated p53 could be a useful serological marker for diagnostic purposes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1019-6439
pubmed:author
pubmed-author:AimaleMM, pubmed-author:BaloghG AGA, pubmed-author:BaruttaEE, pubmed-author:CafassoM EME, pubmed-author:CorteM MMM, pubmed-author:CuevasM AMA, pubmed-author:FrizzaAA, pubmed-author:GentiliAA, pubmed-author:GentiliRR, pubmed-author:GrimmGG, pubmed-author:LizarragaGG, pubmed-author:LizarragaPP, pubmed-author:MachiavelliMM, pubmed-author:MartinezDD, pubmed-author:MasonM VMV, pubmed-author:MaturoVV, pubmed-author:MonteroHH, pubmed-author:MontiCC, pubmed-author:MordohJJ, pubmed-author:NardoFF, pubmed-author:PaolilloEE, pubmed-author:PicoliniJJ, pubmed-author:PonceGG, pubmed-author:QuatroquioRR, pubmed-author:RivadullaMM, pubmed-author:RoncoroniPP, pubmed-author:SalumGG, pubmed-author:SantiagoJJ, pubmed-author:ShulmanLL, pubmed-author:SpinsantiCC, pubmed-author:VincentEE, pubmed-author:VincentRR
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
995-1002
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Mutant p53 protein in serum could be used as a molecular marker in human breast cancer.
pubmed:affiliation
Instituto de Analistas Clinicos Asociados, IACA, Buenos Aires, Argentina. ga_balogh@fccc.edu
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't