Chorioallantoic urothelial tumor avatar. A clinical tool for phenotype-based therapy

Abstract In the muscle invasive bladder cancer (MIBC) standard of care treatment only patients presenting a major pathological tumor response are more likely to show the established modest 5% absolute survival benefit at 5 years after cisplatin-based neoadjuvant chemotherapy (NAC). To overcome the drawbacks of a blind NAC (i.e. late cystectomy with unnecessary NAC adverse events) with potential to survival improvements, preclinical models of urothelial carcinoma have arisen in this generation as a way to pre-determine drug resistance even before therapy is targeted. The implantation of tumor specimens in the chorioallantoic membrane (MCA) of the chicken embryo results in a high-efficiency graft, thus allowing large-scale studies of patient-derived “tumor avatar”. This article discusses a novel approach that exploits cancer multidrug resistance to provide personalized phenotype-based therapy utilizing the MIBC NAC dilemma.

Bibliographic Details

Main Authors:	Ossick,Marina Vian, Ferrari,Karen Linares, Nunes-Silva,Igor, Denardi,Fernandes, Reis,Leonardo Oliveira
Format:	Digital revista
Language:	English
Published:	Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia 2019
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502019001200215
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