ArticleUrology annals2014
Status of Her2 over expression in muscle invasive urothelial bladder carcinoma: Report of 21 cases.
Article in Urology annals, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
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4 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.
- HER2 expression in urothelial carcinoma, a systematic literature review.Frontiers in oncology · 2022Pooled it
- Article
- Review
- Role of Targeted Therapies in Management of Metastatic Urothelial Cancer in the Era of Immunotherapy.Current treatment options in oncology · 2019Review
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9 authors at 1 institution in 1 country.
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Abstract
backgroundInvasive urothelial bladder carcinomas have a poor prognosis even with cystectomy and chemotherapy. A high number of these patients have Her2 overexpression. The goal of this study is to assess the Her2 status in muscle invasive urothelial bladder carcinoma, to evaluation heterogeneity and discordance with metastases. PATIENTS AND
methodsWe retrospectively analyzed 21 specimens of transurethral resection or cystectomy in patients with invasive urothelial bladder carcinoma. We selected one representative section from primary tumors and metastases for immunohistochemistry analysis. Staining was evaluated according to the same criteria of breast cancer. A chromogenic in situ hybridization (CISH) was performed in case of 2+ score or in heterogeneous samples.
resultsMedian age of our patients was 62 years. Intratumoral heterogeneity was observed in 2 cases (less than 1%). One case showed a Her2 3+ score (high grade, pT2 stage) and 3 cases showed a 2+ score (all low grades, stage T2, T4, M1, respectively). Two metastatic lymph nodes scored 1+ for the first (primary 1+) and 2+ for the second (primary 1+). Two cases showed CISH gene amplification. The first one scored 2+ and had area of 3+ score. The second one scored 1+ and had area with 2+ score. Four patients died from disease, one of them had Her2 3+ score.
conclusionHer2 overexpression can be observed in muscle invasive urothelial bladder carcinoma in an important number of patients. Evaluation criteria must be standardized, especially with heterogeneous cases. Metastases tests can also readdress the expression of Her2, which gives the patient a supplementary therapeutic tool.
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