ArticleVirchows Archiv : an international journal of pathology2019
Insulin-like growth factor-1 receptor expression in upper tract urothelial carcinoma.
Article in Virchows Archiv : an international journal of pathology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.
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Who cites it
8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 14 citations in OpenAlex.
- Novel, emerging and provisional renal entities: The Genitourinary Pathology Society (GUPS) update on renal neoplasia.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2021Guideline
- The Prognostic Value of Lymphovascular Invasion in Patients With Upper Tract Urinary Carcinoma After Surgery: An Updated Systematic Review and Meta-Analysis.Frontiers in oncology · 2020Pooled it
- Efficacy and safety of anamorelin in patients with metastatic urothelial carcinoma receiving systemic chemotherapy: a randomized controlled study.The oncologist · 2025Trial
- Integrative microRNA and transcriptome analysis reveals sex-specific molecular divergence in human bladder cancer.Biology of sex differences · 2026Article
- The Association between Diabetes Medication Use and Tumour Characteristics at Diagnosis in Patients with Urothelial Carcinoma: A Retrospective Registry-Based Study.Bladder cancer (Amsterdam, Netherlands) · 2023Article
- Prognostic impact of insulin-like growth factor-I and its binding proteins, insulin-like growth factor-I binding protein-2 and -3, on adverse histopathological features and survival outcomes after radical cystectomy.International journal of urology : official journal of the Japanese Urological Association · 2022Article
- Downregulation of the let-7 family of microRNAs may promote insulin receptor/insulin-like growth factor signalling pathways in pancreatic ductal adenocarcinoma.Oncology letters · 2020Article
- Expression of Nectin-4 and PD-L1 in Upper Tract Urothelial Carcinoma.International journal of molecular sciences · 2020Article
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Authors and funding
10 authors at 4 institutions in 3 countries.
Funding
Abstract
Insulin-like growth factor-1 receptor (IGF1R) is a transmembrane tyrosine kinase receptor that plays a crucial role in cell proliferation, growth, differentiation, and apoptosis. IGF1R overexpression has been observed in several cancers, including invasive bladder carcinomas, as a potential prognostic factor. Given known biologic differences between upper and lower urinary tract urothelial carcinoma, we assessed the expression status and prognostic significance of IGF1R in upper tract urothelial carcinoma (UTUC). Two tissue microarrays (TMAs) were built from 99 Japanese patients with non-metastatic UTUC submitted to radical nephroureterectomy between 1997 and 2011. TMAs were constructed with triplicate tumor and paired benign urothelium. Membranous IGF1R staining was evaluated using immunohistochemistry. Two scoring methods were applied (Her2-score and H-score). The highest score was assigned to each tumor. IGF1R positivity was defined as Her2-score ≥ 1+. Association with clinicopathologic parameters and outcome was assessed using hazard ratios (HR) with 95% confidence intervals (CI) and adjusted P values. We found positive IGF1R expression in 70% of UTUC. Outcomes were as follows: tumor recurrence, 33%; tumor progression, 59%; overall mortality, 33%; and cancer-specific mortality, 30%. IGF1R was not associated with any clinicopathologic features. In addition, IGF1R expression was not associated with tumor recurrence (HR = 0.54, CI = 0.25-1.1, P = 0.11), tumor progression (HR = 1.6, CI = 0.8-3.1, P = 0.19), overall mortality (HR = 1.5, CI = 0.68-3.4, P = 0.31), or cancer-specific mortality (HR = 1.6, CI = 0.68-3.8, P = 0.27). Positive IGF1R expression was found in more than two thirds of UTUC. This finding provides a rationale to investigate IGF1R as a potential therapeutic target in UTUC. In contrast to bladder cancer, IGF1R expression in UTUC did not correlate with outcome, further pointing to biologic differences between UTUC and bladder cancer.
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