title: Antibodies against p53 are associated with poor prognosis of colorectal cancer.
abstract: Mutation of the p53 gene is a common event in colorectal cancer. This alteration can result in cellular accumulation of p53 and may also induce p53 antibodies. Accumulation of p53 in tumour cells has been associated with poor prognosis of colorectal cancer. We tested preoperative sera from 255 patients with colorectal cancer by enzyme-linked immunosorbent assay (ELISA). A total of 70.2% had reactivity that was higher than the 'low' control serum. Employing a cut-off level of 10% of the 'high' control sample, 25.5% of the patients were positive for p53 antibodies. The presence of p53 antibodies correlated with the following prognostic factors: histological differentiation grade, shape of the tumour, and tumour invasion into blood vessels. Patients with p53 antibodies were shown to have decreased survival and decreased disease-free survival. Specifically for patients with cancer stage A and B1 the presence of p53 antibodies selected a subgroup with poor prognosis.
authors.affiliation: Department of Immunohaematology and Blood Bank, University Hospital Leiden, The Netherlands.
authors.forename: J G
authors.initials: JG
authors.lastname: Houbiers
authors.forename: S H
authors.initials: SH
authors.lastname: van der Burg
authors.forename: L M
authors.initials: LM
authors.lastname: van de Watering
authors.forename: R A
authors.initials: RA
authors.lastname: Tollenaar
authors.forename: A
authors.initials: A
authors.lastname: Brand
authors.forename: C J
authors.initials: CJ
authors.lastname: van de Velde
authors.forename: C J
authors.initials: CJ
authors.lastname: Melief
mesh_terms: D000912:Antibodies, Neoplasm / Q000097:blood*; D015179:Colorectal Neoplasms / Q000276:immunology*; D004797:Enzyme-Linked Immunosorbent Assay; D005500:Follow-Up Studies; D016158:Genes, p53; D006801:Humans; D015999:Multivariate Analysis; D017354:Point Mutation; D011379:Prognosis; D016159:Tumor Suppressor Protein p53 / Q000235:genetics / Q000276:immunology*
chemical_list: D000912:Antibodies, Neoplasm; D016159:Tumor Suppressor Protein p53