Up-regulation of secretory leukocyte protease inhibitor in human samples might have a potential role of predicting prostate cancer recurrence and progression after surgery and hormonal therapy

被引：1

作者：

Miyazaki, Yu ^{[1
]}

Goto, Takayuki ^{[1
]}

Li, Xin ^{[1
]}

Nakayama, Kenji ^{[1
]}

Okasho, Kosuke ^{[1
]}

Takeda, Masashi ^{[1
]}

Mizuno, Kei ^{[1
]}

Kimura, Hiroko ^{[1
]}

Uegaki, Masayuki ^{[1
]}

Sumiyoshi, Takayuki ^{[1
]}

Teramoto, Yuki ^{[2
]}

Akamatsu, Shusuke ^{[1
]}

Kobayashi, Takashi ^{[1
]}

Ogawa, Osamu ^{[1
]}

Inoue, Takahiro ^{[3
]}

机构：

[1] Kyoto Univ, Grad Sch Med, Dept Urol, Kyoto, Japan

[2] Kyoto Univ Hosp, Dept Diagnost Pathol, Kyoto, Japan

[3] Mie Univ, Dept Nephrourol Surg & Androl, Grad Sch Med, 2-174 Edobashi, Tsu, Mie 5148507, Japan

来源：

CANCER MEDICINE | 2023年 / 12卷 / 03期

基金：

日本学术振兴会;

关键词：

castration-resistant; prostate cancer; proteomic analysis; secretory leukocyte protease inhibitor; tumor marker; PEPTIDASE INHIBITOR; PROLIFERATION; METASTASIS; CELLS; ENZALUTAMIDE; MITOXANTRONE; PREDNISONE; INVASION; SLPI;

D O I：

10.1002/cam4.5134

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

Using new castration-resistant prostate cancer (CRPC) cell lines developed from LNCaP cells as a model for CRPC, we searched for novel biomarkers by analyzing the proteins secreted in culture supernatants. The results showed that the levels of secretory leukocyte protease inhibitor (SLPI) in these cell lines were 4.7-6.7 times higher than those secreted in parental LNCaP. Patients with localized prostate cancer (PC) and who expressed SLPI had a significantly lower prostate-specific antigen (PSA) progression-free survival rate than those who did not. Multivariate analysis revealed that SLPI expression was an independent risk factor for PSA recurrence. By contrast, when immunostaining of SLPI was performed on consecutive prostate tissue samples obtained from 11 patients, both in hormone naive (HN) and castration resistant (CR) conditions, only one patient expressed SLPI in the HNPC state; however, four of the 11 patients expressed SLPI in the CRPC state. In addition, two of these four patients were resistant to enzalutamide, and there was a discrepancy between their serum PSA levels and radiographic progression of the disease. These results suggest that SLPI can be a predictor of prognosis in patients with localized PC and disease progression in CRPC patients.

引用

页码：3328 / 3342

页数：15

共 1 条

[1] Salvage external beam radiotherapy for local recurrence without systemic progression or prostate specific antigen recurrence of prostate cancer after initial hormonal therapy: Is it possible to identify patients likely to have good treatment outcomes?
Kurokawa, K
Ito, K
Suzuki, K
Ono, Y
Yamamoto, T
Akimoto, T
Yamanaka, H
JAPANESE JOURNAL OF CLINICAL ONCOLOGY, 2002, 32 (11) : 466 - 471

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