Abstract：
:Recently developed antibodies against uroplakin II and ΔNp63 (p40) show utility in diagnosing primary bladder urothelial carcinoma, although application in metastatic bladder cancer and patient outcomes has been less well defined. We evaluated these antibodies by immunostain intensity and H-score, in conjunction with GATA-3 immunoreactivity, in 89 patients with muscle-invasive urothelial carcinoma and 35 paired metastasis. The maintenance of immunoreactivity in metastatic lesions and the association to disease recurrence and survival was assessed. Bladder urothelial carcinoma showed immunoreactivity for GATA-3 in 99% (88/89), p40 in 87% (77/89) and uroplakin II in 80% (71/89) of cases, with a positive correlation between GATA-3 and uroplakin II H-score (0.44; p < 0.0001). All lesions were positive for at least one marker, reinforcing the use of these markers as a panel. In 35 patients with paired lymph node metastasis, uroplakin II and GATA-3 were retained in 90% and 75% of patients, respectively, suggesting these markers may have relatively high sensitivity in diagnosing metastatic urothelial carcinoma. High intensity p40 immunostain (3+), however, was significantly associated with reduced patient survival (p = 0.03). These results suggest that whereas GATA-3 and uroplakin II may be most useful in the diagnosis of urothelial carcinoma metastasis, p40 may be additionally suited as a prognostic marker.
journal_name
Pathologyjournal_title
Pathologyauthors
Leivo MZ,Elson PJ,Tacha DE,Delahunt B,Hansel DEdoi
10.1016/j.pathol.2016.05.008subject
Has Abstractpub_date
2016-10-01 00:00:00pages
543-9issue
6eissn
0031-3025issn
1465-3931pii
S0031-3025(16)40161-3journal_volume
48pub_type
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