Subcellular localisation of anillin is associated with different survival outcomes in upper urinary tract urothelial carcinoma.

Abstract

BACKGROUND:

The protein anillin (ANLN) has important roles in cell cytokinesis. Until now, no studies have evaluated the role of ANLN expression in a large cohort of patients with urothelial carcinoma of the upper urinary tract (UCUT).

METHODS:

This study analysed 156 cases of primary localised UCUT. Pathological slides were reviewed and clinical findings were collected. An immunohistochemical study was performed and the cytoplasmic and nuclear staining results of UCUT were recorded. Expressions of ANLN were analysed to identify correlations with various clinicopathological parameters, disease-specific survival (DSS) and metastasis-free survival (MeFS).

RESULTS:

Overexpression of ANLN in the nucleus had significant positive associations with tumour stage (p=0.017), histological grade (p=0.040), mitotic count (p=0.023), tumour necrosis (p=0.009), invasion patterns (p<0.001) and simultaneous involvement of the renal pelvis and ureter (p=0.032). Overexpression of ANLN in the cytoplasm had a significant negative correlation with patient age (p=0.004), tumour grade (p=0.021) and vascular invasion (p=0.013). Notably, univariable analysis showed that overexpression of ANLN in the nucleus was significantly associated with a poor DSS (p=0.006) and MeFS (p=0.010), and multivariable analysis showed that it was an independent predictor of adverse DSS outcome (p=0.031, relative risk 1.535). Low expression of ANLN in the cytoplasm was strongly associated with a poor DSS (p=0.045) and MeFS (p=0.041) in univariable analysis but not in Cox regression analysis.

CONCLUSIONS:

Subcellular localisation of ANLN is correlated with different tumour phenotypes and probably confers different tumorigenicity. Since high nuclear expression of ANLN is also an independent predictor of poor DSS, it is a useful prognostic marker of UCUT.

• Authors: Peir-In Liang, Wan Tzu Chen, Chien-Feng Li, Ching-Chia Li, Wei-Ming Li, Chun-Nung Huang, Hsin-Chih Yeh, Hung-Lung Ke, Wen-Jeng Wu, Chee-Yin Chai
• Journal: Journal of clinical pathology (J Clin Pathol) Vol. 68 Issue 12 Pg. 1026-32 (Dec 2015) ISSN: 1472-4146 [Electronic] England
• PMID: 26135313 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

Chemical References

• ANLN protein, human
• Biomarkers, Tumor
• Microfilament Proteins

Topics

• Adult
• Aged
• Biomarkers, Tumor (metabolism)
• Carcinogenesis
• Carcinoma, Transitional Cell (metabolism, mortality)
• Cell Nucleus (metabolism)
• Cohort Studies
• Cytoplasm (metabolism)
• Disease-Free Survival
• Female
• Humans
• Male
• Microfilament Proteins (metabolism)
• Middle Aged
• Prognosis
• Urologic Neoplasms (metabolism, mortality)