Analysis of Autoantibodies Related to Tumor Progression in Sera from Patients with High-grade Non-muscle-invasive Bladder Cancer

Autor: Makoto Saegusa, Benio Tsuchiya, Sho Minami, Masatsugu Iwamura, Shi-Xu Jiang, Naoki Goshima, Eriko Fukuda, Kazumasa Matsumoto, Daisuke Hagiuda, Ryo Nagashio, Manabu Hattori, Yuichi Sato, Kazuo Hachimura
Rok vydání: 2017
Předmět:
Zdroj: Anticancer research. 37(12)
ISSN: 1791-7530
Popis: BACKGROUND/AIM Bladder cancer (BC) has a high recurrence rate and may progress to being a muscle-invasive lesion, that is potentially associated with a poor prognosis. We identified tumor-associated proteins that were recognized by autoantibodies in sera from patients with high-grade non-muscle-invasive bladder cancer (HG-NMIBC) by proteomic analysis. MATERIALS AND METHODS The serum levels of these autoantibodies against identified proteins were validated by dot blot analysis with sera from 95 patients with BC and 35 healthy controls. The expression of identified proteins was immunohistochemically analyzed in 115 BC tissues. RESULTS Autoantibody against protein phosphatase 1, catalytic subunit, alpha isoform (PPP1CA) protein was detected in pretreated sera from patients with HG-NMIBC who showed progression. The serum IgG level of anti-PPP1CA autoantibody was significantly correlated with pathological stage, grade, lymphovascular invasion, and prognosis. The immunoreactions for PPP1CA protein in BC was significantly correlated with pathological stage, grade, and lymphovascular invasion. CONCLUSION PPP1CA is a candidate sero-diagnostic and prognostic marker for patients with BC.
Databáze: OpenAIRE