{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,7]],"date-time":"2026-01-07T23:45:38Z","timestamp":1767829538165,"version":"3.49.0"},"reference-count":31,"publisher":"BMJ","issue":"11","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Clin Pathol"],"published-print":{"date-parts":[[1986,11]]},"abstract":"<jats:p>Cryostat sections of fresh frozen tissues were used in a prospective study of blood group H and A antigen fluorescence in 73 transitional cell carcinomas of the bladder. The aim was to evaluate antigen expression without subjecting the tumour tissues to organic solvents that extract blood group active glycolipids. Deletion of the genetically predicted antigen was twice as common in tumours of pT1 or greater stage than those of pTa stage and also twice as common in poorly differentiated than in moderately well differentiated tumours. The considerable heterogeneity and overlap, however, in patterns of reactivity in tumours of various histopathological stages and grades and the effect of secretor status on antigenicity meant that there was no obvious antigenic feature that correlated precisely with invasive stage or differentiation grade. It remains to be determined whether the antigen positive and antigen negative tumours represent different disease entities with differing clinical courses. Our results indicate, however, that studies of the blood group antigens in urinary tract tumours are more likely to be of value in research into biochemical disorders in the neoplastic process than in routine clinical assessment as a guide to treatment.<\/jats:p>","DOI":"10.1136\/jcp.39.11.1165","type":"journal-article","created":{"date-parts":[[2007,6,9]],"date-time":"2007-06-09T00:50:46Z","timestamp":1181350246000},"page":"1165-1176","source":"Crossref","is-referenced-by-count":5,"title":["Expression of blood group antigens in urinary tract tumours: prospective fluorescence study using cryostat sections of fresh frozen tissues."],"prefix":"10.1136","volume":"39","author":[{"given":"S J","family":"Thorpe","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P","family":"Abel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D","family":"Henderson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N","family":"Jones","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T","family":"Feizi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[1986,11,1]]},"reference":[{"key":"ref_1","first-page":"149","article-title":"Heterogeneity of superficial bladder cancer","volume-title":"Bladder cancer. 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