Investigating PSMA differential expression in canine uroepithelial carcinomas to aid disease-based stratification and guide therapeutic selection

BMC Veterinary Research

Research

Bahaa A. Fadl-Alla¹  Jonathan Samuelson²  Matthew R. Berry³  Timothy M. Fan⁴  Thomas J. Rosol⁵ 

[1] Department of Pathobiology, College of Veterinary Medicine, University of Illinois, 61802, Urbana, IL, USA;Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, 61802, Urbana, IL, USA;Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, 61802, Urbana, IL, USA;Department of Pathobiology, College of Veterinary Medicine, University of Illinois, 61802, Urbana, IL, USA;Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, 61802, Urbana, IL, USA;Department of Pathobiology, College of Veterinary Medicine, University of Illinois, 61802, Urbana, IL, USA;Cancer Center at Illinois, University of Illinois, 61802, Urbana, IL, USA;Heritage College of Osteopathic Medicine, Ohio University, 45701, Athens, OH, USA;

关键词: Comparative oncology;    Canine;    Urothelial carcinoma, prostate carcinoma, druggable target;    Prostate-specific membrane antigen;    Chemotherapy;   

DOI  :  10.1186/s12917-022-03544-6

 received in 2022-10-10, accepted in 2022-12-07,  发布年份 2022

来源: Springer

【 摘 要 】

BackgroundIn male dogs, uroepithelial cancers include invasive urothelial carcinoma (iUC) and prostate carcinoma (PCA). The inability to distinguish iUC involving the prostate from PCA results in indiscriminate clinical management strategies that could be suboptimal as first-line chemotherapy for iUC (cisplatin) and PCA (docetaxel) differ in people. Prostate specific membrane antigen (PSMA) is a transmembrane protein, and its overexpression has been identified in human prostate carcinoma and neovasculature associated with solid tumor growth. This study investigates whether differential PSMA expression exists between presumptive canine iUC and PCA among cell lines and archived patient samples, which might allow for improved accuracy in disease-based stratification and optimal chemotherapy selection. Additionally, in vitro sensitivities of reported canine iUC and PCA cell lines to uroepithelial directed chemotherapeutic agents were characterized.ResultsNormalized PSMA gene and protein expressions were not significantly different between 5 iUC and 4 PCA cell lines. PSMA protein expression was uniformly observed in uroepithelial cancers regardless of anatomic origin from archived patient samples, further confirming that PSMA cannot differentiate iUC from PCA. In vitro sensitivity of cell lines to uroepithelial directed chemotherapeutics revealed that vinblastine exerted the broadest cytotoxic activity.ConclusionsDifferential expression of PSMA was not identified between canine iUC and PCA cell lines or archived patient samples, and PSMA alone cannot be used for disease stratification. Nonetheless given its conserved overexpression, PSMA may be a targetable surface marker for both canine iUC and PCA. Lastly, in uroepithelial carcinomas, vinblastine might exert the broadest anticancer activity regardless of cellular origin.

【 授权许可】

CC BY   
© The Author(s) 2022

【 图 表 】

12888_2022_4482_Article_IEq3.gif

41408_2022_765_Article_IEq1.gif

12982_2022_119_Article_IEq81.gif

12982_2022_119_Article_IEq208.gif

12982_2022_119_Article_IEq72.gif