scholarly journals CULTURE AND MAINTENANCE OF URINE-DERIVED, 3-DIMENSIONAL CANINE TRANSITIONAL CELL CARCINOMA ORGANOIDS

2021 ◽  
Author(s):  
Savantha Thenuwara ◽  
Ben Schneider ◽  
Allison Mosichuk ◽  
Vojtech Gabriel ◽  
Christopher Zdyrski ◽  
...  

ABSTRACTBladder cancer is the ninth most common malignancy in the world. Transitional cell carcinoma (TCC), also referred to as urothelial carcinoma (UC) is the most common form of bladder cancer, occurring in 90% of cases. In this study, we explore urine-derived, 3-dimensional, canine TCC organoids as a possible model to study bladder TCC ex vivo. After establishing the cell lines, we subjected the 3D cells to RNA in situ hybridization (RNA-ISH) and cell viability assays. Overall, 3D cell culture from urine samples of TCC diagnosed canines expressed RNA biomarkers in a similar manner to parent tumors via RNA-ISH and showed more sensitivity to cisplatin treatment when compared to 2D human TCC cells. With further experimentation, canine TCC organoids could become an ideal model to study TCC ex vivo.

2007 ◽  
Vol 177 (4S) ◽  
pp. 135-135
Author(s):  
Eiji Kikuchi ◽  
Akira Miyajima ◽  
Ken Nakagawa ◽  
Mototsugu Oya ◽  
Takashi Ohigashi ◽  
...  

2013 ◽  
Vol 3 (5) ◽  
pp. 61 ◽  
Author(s):  
Kelly N. Fahl ◽  
Stephen A. Poon ◽  
Ketan K. Badani ◽  
Mitchell C. Benson

It has been reported that patients with bladder cancer have widelyvarying paraneoplastic consequences, including metabolic, dermatologic,myopathic and neurologic disturbances. We report a case of a52-year-old man with advanced transitional cell carcinoma and livermetastases, who developed a severe coagulopathy following roboticradical cystoprostatectomy due to circulating heparin-like substancesprior to onset of liver failure. Heparin-like anticoagulant production isa rare paraneoplastic effect documented in concert with transitionalcell carcinoma, breast carcinoma and hematological malignancies.


2003 ◽  
Vol 21 (12) ◽  
pp. 2247-2253 ◽  
Author(s):  
Lance C. Pagliaro ◽  
Afsaneh Keyhani ◽  
Dallas Williams ◽  
Denise Woods ◽  
Baoshun Liu ◽  
...  

Purpose: We investigated the feasibility, safety, and biologic activity of adenovirus-mediated p53 gene transfer in patients with locally advanced bladder cancer. Patients and Methods: Patients with measurable, locally advanced transitional-cell carcinoma of the bladder who were not candidates for cystectomy were eligible. On a 28-day cycle, intravesical instillations of INGN 201 (Ad5CMV-p53) were administered on days 1 and 4 at three dose levels (1010 particles to 1012 particles) or on either 4 or 8 consecutive days at a single dose level (1012 particles). Results: Thirteen patients received a total of 22 courses without dose-limiting toxicity. Specific transgene expression was detected by reverse transcriptase polymerase chain reaction in bladder biopsy tissue from two of seven assessable patients. There were no changes in p53, p21waf1/cip1, or bax protein levels in bladder epithelium evident from immunohistochemical analysis of 11 assessable patients. Outpatient administration of multiple courses was feasible and well tolerated. A patient with advanced superficial bladder cancer showed evidence of tumor response. Conclusion: Intravesical instillation of Ad5CMV-p53 is safe, feasible, and biologically active when administered in multiple doses to patients with bladder cancer. Observations from this study indicate that this treatment has an antitumor effect in superficial transitional-cell carcinoma. Improvements in the efficiency of gene transfer and the levels of gene expression are required to develop more effective gene therapy for bladder cancer.


1998 ◽  
Vol 65 (1_suppl) ◽  
pp. 89-92
Author(s):  
F. Di Nuovo ◽  
O. Privitera ◽  
R. Bonacina ◽  
G. Catania ◽  
M. Sironi ◽  
...  

Although malignant fibrous histiocytoma is the most common among soft tissue tumours in adults, its origin in the bladder is extremely rare. Only 17 cases have been reported so far. We present the case of an 86-year-old patient who, following clinical and instrumental examination for a large bladder growth, underwent partial cystectomy. The histopathological exam showed a neoplastic mass, while immunohistochemical findings indicated a malignant fibrous histiocytoma. A transitional cell carcinoma in situ with microinfiltration of the lamina propria was also observed near the above tumour.


Urology ◽  
2003 ◽  
Vol 61 (3) ◽  
pp. 539-543 ◽  
Author(s):  
Scott M Gilbert ◽  
Robert W Veltri ◽  
Alex Sawczuk ◽  
Ahmad Shabsigh ◽  
David R Knowles ◽  
...  

1993 ◽  
Vol 60 (4) ◽  
pp. 345-348
Author(s):  
V. Serretta ◽  
S. Piazza ◽  
C. Pavone ◽  
G. Corselli ◽  
B. Piazza ◽  
...  

The Authors present their experience with TUR plus adjuvant intravesical chemotherapy in 50 patients affected by primary T1 G3 bladder tumours without previous or concomitant carcinoma in situ. At a mean follow-up of 36 months, 84% of the patients are alive and tumour-free. Cystectomy was performed in three patients due to locally invasive disease. Five patients (10%) died of bladder cancer.


2005 ◽  
Vol 72 (3) ◽  
pp. 301-306
Author(s):  
M. Ciaccia ◽  
R. Bertoloni ◽  
F. Pinto ◽  
A. Calpista ◽  
P.F. Bassi

Urine cytology is a reliable and well known tool in the diagnosis and follow-up of patients with transitional cell carcinoma even if it has high sensitivity only in high grade tumors and carcinoma in situ. In order to improve sensitivity of this test in patients with low grade tumors, new methods such as cytometry, microsatellite assays, Immunocyt®, fuorescence in-situ hybridization and Thin-Prep monolayer have been developed. These new assays will be able to increase the cytology detection rate and to predict the outcome of transitional cell carcinoma.


Sign in / Sign up

Export Citation Format

Share Document