{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T19:25:46Z","timestamp":1772825146337,"version":"3.50.1"},"reference-count":30,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2005,6,16]],"date-time":"2005-06-16T00:00:00Z","timestamp":1118880000000},"content-version":"vor","delay-in-days":4976,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["pathsocjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Journal of Pathology"],"published-print":{"date-parts":[[1991,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Five antibodies directed against the whole or part of p53 protein have been used to detect the protein immunohistochemically in 70 infiltrating breast carcinomas and 10 ductal carcinomas <jats:italic>in situ<\/jats:italic>. Mutations are known to occur in different conserved domains, and the antibodies employed spanned the expected sites.<\/jats:p><jats:p>P53 protein was identified in 53 per cent of infiltrating carcinomas using the antibodies PAb 240, PAb 1801, C19, and JG8. The antibody PAb 421 detected the protein in 31\u00b75 per cent; all positive with the other antibodies. Well\u2010differentiated oestrogen receptor\u2010positive tumours had a low incidence of p53 detection. Variation in the percentage of reactivity was seen between carcinomas and in some cases between different antibodies in the same cancer. Those carcinomas with a high percentage of positive cells with all antibodies were more likely to have metastasized to nodes, be at an advanced stage, and be oestrogen receptor\u2010negative\/epidermal growth factor receptor\u2010positive. There was no significant correlation with c\u2010<jats:italic>erb<\/jats:italic>B\u20102 protein expression or retinoblastoma protein loss. p53 protein was detected in a high proportion of cells in three of the six comedo ductal carcinomas <jats:italic>in situ<\/jats:italic> studied but either not at all or at a lower level in tumours of the cribriform type.<\/jats:p><jats:p>P53 mutations are common in breast carcinomas, but heterogeneity within individual tumours in frequent. Marked expression of p53 appears to relate to tumour progression.<\/jats:p>","DOI":"10.1002\/path.1711650303","type":"journal-article","created":{"date-parts":[[2005,6,22]],"date-time":"2005-06-22T10:24:49Z","timestamp":1119435889000},"page":"203-211","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":100,"title":["Expression of p53 protein in infiltrating and <i>in\u2010situ<\/i> breast carcinomas"],"prefix":"10.1002","volume":"165","author":[{"given":"Rosemary A.","family":"Walker","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sheila J.","family":"Dearing","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David P.","family":"Lane","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jennifer 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