학술논문
Enhanced phosphorylation of c-Jun by cisplatin treatment as a potential predictive biomarker for cisplatin response in combination with patient-derived tumor organoids
Document Type
Original Paper
Author
Tsukamoto, Yoshiyuki; Kurogi, Shusaku; Shibata, Tomotaka; Suzuki, Kosuke; Hirashita, Yuka; Fumoto, Shoichi; Yano, Shinji; Yanagihara, Kazuyoshi; Nakada, Chisato; Mieno, Fumi; Kinoshita, Keisuke; Fuchino, Takafumi; Mizukami, Kazuhiro; Ueda, Yoshitake; Etoh, Tsuyoshi; Uchida, Tomohisa; Hanada, Toshikatsu; Takekawa, Mutsuhiro; Daa, Tsutomu; Shirao, Kuniaki; Hironaka, Shuichi; Murakami, Kazunari; Inomata, Masafumi; Hijiya, Naoki; Moriyama, Masatsugu
Source
Laboratory Investigation: Advancing the understanding of human and experimental disease. 102(12):1355-1366
Subject
Language
English
ISSN
0023-6837
1530-0307
1530-0307
Abstract
Despite recent advances in sequencing technology and large-scale drug screenings employing hundreds of cell lines, the predictive accuracy of mutation-based biomarkers is still insufficient as a guide for cancer therapy. Therefore, novel types of diagnostic methods using alternative biomarkers would be highly desirable. We have hypothesized that sensitivity-specific changes in the phosphorylation of signaling molecules could be useful in this respect. Here, with the aim of developing a method for predicting the response of cancers to cisplatin using a combination of specific biomarker(s) and patient-derived tumor organoids (PDOs), we found that cisplatin-sensitive cell lines or PDOs showed enhanced phosphorylation of c-Jun (p-c-Jun) within 24 h after cisplatin treatment. We also compared the responses of 6 PDOs to cisplatin with the therapeutic effect of neoadjuvant chemotherapy (docetaxel/cisplatin/5-fluorouracil) in 6 matched patients. Mechanistically, the c-Jun induction was partly related to TNF signaling induced by cisplatin. Our data suggest that enhanced phosphorylation of c-Jun in response to cisplatin treatment could be a predictive biomarker for the efficacy of cisplatin in selected cancer patients.
This study shows the potential application of c-Jun phosphorylation upon cisplatin treatment as a biomarker for cisplatin sensitivity in combination with patient-derived tumor organoids (PDOs). We also compared the responses of 6 PDOs to cisplatin with the therapeutic effect of neoadjuvant chemotherapy in 6 matched patients with esophageal squamous cell carcinoma.
This study shows the potential application of c-Jun phosphorylation upon cisplatin treatment as a biomarker for cisplatin sensitivity in combination with patient-derived tumor organoids (PDOs). We also compared the responses of 6 PDOs to cisplatin with the therapeutic effect of neoadjuvant chemotherapy in 6 matched patients with esophageal squamous cell carcinoma.