Boosting bladder cancer treatment by intravesical nitazoxanide and bacillus calmette-guérin association

Autor: Karen L. Ferrari, Isis G. A. Kiehl, Osamu Ikari, Heloisa Balan Assalin, Marina V Ossick, Leonardo Oliveira Reis, Eduardo Riccetto, Ana Clara Salustiano
Rok vydání: 2020
Předmět:
Zdroj: World Journal of Urology. 39:1187-1194
ISSN: 1433-8726
0724-4983
Popis: Nitazoxanide (NTZ) has shown a promising antitumoral effect, the current study compared the anti-neoplastic effects of intravesical NTZ and BCG plus NTZ in NMIBC animal model. 30 rats, Fisher 344 were instilled with 4 intravesical doses of 1.5 mg/kg of N-methyl-N-nitrosourea (MNU) every 15 days for BC induction. The animals were divided into 3 groups (Group BCG 106 UFC – 1 mg of BCG; Group NTZ – 300 mg/kg of NTZ; Group NTZ + BCG – simultaneous treatment of BCG and NTZ) and received weekly intravesical treatment for 6 consecutive weeks. Animals were submitted to ultrasound imaging and euthanasia, their bladders were collected and histopathological, immunohistochemical tests (ki67 e c-Myc) and Western Blotting (PI3K, mTOR, and p-4E-BP) were performed. Histopathological tests showed 66.67%, 62.5% and 37.5% incidence of BC in animals treated with BCG, NTZ, and NTZ + BCG, respectively. Nuclear positivity for ki-67 in BC animals were 12.4% (IC 10.1–14.6%), 13.2% (IC 10.5–15.9%) and 8.8% (IC 6.0–11.6%) in BCG, NTZ and NTZ + BCG group, respectively (p = 0.063). Between animals with carcinoma, c-Myc strong positive was 40.10% in NTZ, 32.2% in BCG and 19.90% in the NTZ + BCG group (p
Databáze: OpenAIRE
Externí odkaz: