ArticleCancer science2006
Upregulation of fibroblast growth factor receptor 3 and epidermal growth factor receptors, in association with Raf-1, in urothelial dysplasia and carcinoma in situ after the Chernobyl accident.
Article in Cancer science, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Microvessel density is high in clear-cell renal cell carcinomas of Ukrainian patients exposed to chronic persistent low-dose ionizing radiation after the Chernobyl accident.Virchows Archiv : an international journal of pathology · 2012Article
- Urological concern and postcrisis Japanese nuclear accident.Urology annals · 2012Article
- Overestimation of Chernobyl consequences: biophysical aspects.Radiation and environmental biophysics · 2009Article
- Urological concern after nuclear accidents.Urology annalsArticle
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9 authors.
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No grant is acknowledged in the PubMed record.
Abstract
The present study was carried out in order to examine the molecular status of selected growth factor receptors (GFR) in urinary bladder lesions, recently described by our group as representing 'Chernobyl cystitis'. Fibroblast growth factor receptor 3 (FGFR3), epidermal growth factor receptor 1 (EGFR1), EGFR2neu (a member of the same family), p53 and Raf-1 serine/threonine kinase expression were evaluated immunohistochemically in urinary bladder biopsies from 22 men with benign prostate hyperplasia (group 1). For comparison, 16 men with benign prostate hyperplasia and five women with chronic cystitis living in non-radio-contaminated areas of the country were also investigated as controls (group 2). Additionally, 14 patients with dysplasia, carcinoma in situ (CIS) and primary urothelial carcinoma (UC) operated before the Chernobyl accident as well as 23 patients with UC living in the radio-contaminated areas were included as pre- and post-Chernobyl UC groups 1 and 2, respectively. Chronic proliferative atypical cystitis ('Chernobyl cystitis') was observed in group 1 patients. Foci of dysplasia and CIS were found in 22 (100%) and 19 (86%) of the 22 cases, respectively; moreover, two small UC were also detected. Elevated levels of FGFR3, EGFR2/neu, p53 and to a lesser extent EGFR1 and Raf-1 expression in the urothelial dysplasia and CIS were evident for patients of group 1. Statistically significant differences in immunohistochemical scores for FGFR3, EGFR1, p53 and Raf-1 were observed between groups 1 and 2 and between group 1 and the post-Chernobyl UC group 2, where a change in expression of EGFR2/neu was also noted. A significant decrease in FGFR3 expression in additional pre-Chernobyl UC group 1 with dysplasia, CIS and UC compared with group 1 Chernobyl cystitis cases was detected. Our findings suggest that FGFR and EGFR signaling pathways, associated with p53 and Raf-1 activation, may contribute to multistage urothelial carcinogenesis caused by irradiation, through autocrine or paracrine growth stimulation.
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