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Lapucci A, Perrone G, Di Paolo A, Napoli C, Landini I, Roviello G, Calosi L, Naccarato AG, Falcone A, Bani D, Mini E, Nobili S. PNN and KCNQ1OT1 Can Predict the Efficacy of Adjuvant Fluoropyrimidine-Based Chemotherapy in Colorectal Cancer Patients. Oncol Res 2020; 28:631-644. [PMID: 33208224 PMCID: PMC7962934 DOI: 10.3727/096504020x16056983169118] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The benefit of adjuvant chemotherapy in the early stages of colorectal cancer (CRC) is still disappointing and the prediction of treatment outcome quite difficult. Recently, through a transcriptomic approach, we evidenced a role of PNN and KCNQ1OT1 gene expression in predicting response to fluoropyrimidine-based adjuvant chemotherapy in stage III CRC patients. Thus, the aim of this study was to validate in an independent cohort of stages II–III CRC patients our previous findings. PNN and KCNQ1OT1 mRNA expression levels were evaluated in 74 formalin-fixed paraffin-embedded tumor and matched normal mucosa samples obtained by stages II–III CRC patients treated with fluoropyrimidine-based adjuvant chemotherapy. PININ, the protein encoded by PNN, was immunohistochemically evaluated in 15 tumor and corresponding normal mucosa samples, selected on the basis of a low, medium, or high mRNA expression tumor/mucosa ratio. PNN and KCNQ1OT1 mRNA mean expression levels were significantly higher in tumor compared with normal tissues. Patients with high PNN or KCNQ1OT1 tumor mRNA levels according to ROC-based cutoffs showed a shorter disease-free survival (DFS) compared with patients with low tumor mRNA gene expression. Also, patients with tumor mRNA expression values of both genes below the identified cutoffs had a significantly longer DFS compared with patients with the expression of one or both genes above the cutoffs. In a representative large cohort of stages II–III CRC untreated patients retrieved from GEO datasets, no difference in DFS was observed between patients with high and low PNN or KCNQ1OT1 gene expression levels. These data confirm our previous findings and underscore the relevance of PNN and KCNQ1OT1 expression in predicting DFS in early stages of CRC treated with fluoropyrimidine-based adjuvant chemotherapy. If further validated in a prospective case series, both biomarkers could be used to identify patients who benefit from this treatment and to offer alternative chemotherapy regimens to potential unresponsive patients. In relation to the suggested biological role of PNN and KCNQ1OT1 in CRC, they might also be exploited as potential therapeutic targets.
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Affiliation(s)
- Andrea Lapucci
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | - Gabriele Perrone
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | - Antonello Di Paolo
- Department of Clinical and Experimental Medicine, University of PisaPisaItaly
| | - Cristina Napoli
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | - Ida Landini
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | | | - Laura Calosi
- Department of Experimental and Clinical Medicine, University of FlorenceFlorenceItaly
| | - Antonio Giuseppe Naccarato
- Department of Translational Research and New Technologies in Medicine and Surgery, University of PisaPisaItaly
| | - Alfredo Falcone
- Department of Translational Research and New Technologies in Medicine and Surgery, University of PisaPisaItaly
| | - Daniele Bani
- Department of Experimental and Clinical Medicine, University of FlorenceFlorenceItaly
| | - Enrico Mini
- Department of Health Sciences, University of FlorenceFlorenceItaly
| | - Stefania Nobili
- Department of Health Sciences, University of FlorenceFlorenceItaly
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Li W, Liu J, Zou D, Cai X, Wang J, Wang J, Zhu L, Zhao L, Ou R, Xu Y. Exploration of bladder cancer molecular mechanisms based on miRNA-mRNA regulatory network. Oncol Rep 2017; 37:1461-1468. [PMID: 28184944 DOI: 10.3892/or.2017.5433] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 07/20/2016] [Indexed: 11/05/2022] Open
Abstract
To explore the complex molecular mechanisms of bladder cancer, mRNA and miRNA expression profiles were combined for systematic analyses. A total of 18 common differentially expressed genes (DEGs) were identified from two mRNA expression datasets which consisted of 206 tumor and 74 normal tissues. Then, survival analysis based on the SurvExpress database showed that the common DEGs were able to significantly differentiate low- and high-risk groups in 4 public bladder cancer datasets (p<0.01). Notably, the tumor and normal samples were able to be almost clearly classified into 4 groups based on these identified common DEGs. In addition, 6 out of the 18 common DEGs, including ALDH1A1 and SRPX, are regulated by 6 reported miRNAs based on regulatory network analyses. Expression levels of the 6 DEGs were validated in 10 bladder cancer samples using RT-PCR, and the expression values were concordant with the microarray results. Collectively, our analyses indicated that various biological processes are involved in the development and progression of bladder cancer. Firstly, cell cycle checkpoints and DNA repair networks of cancer stem-like cells were regulated by high expression of ALDH1A1, and hence promoted tumor self-renewal or metastasis. Then, activation of HspB6 induced the angiogenesis process which provides necessary nutrition and oxygen for tumor cells. Moreover, downregulation of the expression of tumor-suppressor genes SRPX and FLNC further promoted apoptosis and metastasis. The identification of potential biological processes and genes can be helpful for the understanding of bladder cancer molecular mechanisms.
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Affiliation(s)
- Wenfeng Li
- Laboratory for Advanced Interdisciplinary Research, Center for Personalized Medicine/Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Ouhai, Wenzhou, Zhejiang 325000, P.R. China
| | - Jia Liu
- Laboratory for Advanced Interdisciplinary Research, Center for Personalized Medicine/Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Ouhai, Wenzhou, Zhejiang 325000, P.R. China
| | - Di Zou
- Laboratory for Advanced Interdisciplinary Research, Center for Personalized Medicine/Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Ouhai, Wenzhou, Zhejiang 325000, P.R. China
| | - Xiaye Cai
- Laboratory for Advanced Interdisciplinary Research, Center for Personalized Medicine/Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Ouhai, Wenzhou, Zhejiang 325000, P.R. China
| | - Jingying Wang
- Laboratory for Advanced Interdisciplinary Research, Center for Personalized Medicine/Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Ouhai, Wenzhou, Zhejiang 325000, P.R. China
| | - Jinmeng Wang
- Laboratory for Advanced Interdisciplinary Research, Center for Personalized Medicine/Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Ouhai, Wenzhou, Zhejiang 325000, P.R. China
| | - Li Zhu
- Laboratory for Advanced Interdisciplinary Research, Center for Personalized Medicine/Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Ouhai, Wenzhou, Zhejiang 325000, P.R. China
| | - Liang Zhao
- Laboratory for Advanced Interdisciplinary Research, Center for Personalized Medicine/Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Ouhai, Wenzhou, Zhejiang 325000, P.R. China
| | - Rongying Ou
- Laboratory for Advanced Interdisciplinary Research, Center for Personalized Medicine/Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Ouhai, Wenzhou, Zhejiang 325000, P.R. China
| | - Yunsheng Xu
- Laboratory for Advanced Interdisciplinary Research, Center for Personalized Medicine/Institutes of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Ouhai, Wenzhou, Zhejiang 325000, P.R. China
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Tambe Y, Hasebe M, Kim CJ, Yamamoto A, Inoue H. The drs tumor suppressor regulates glucose metabolism via lactate dehydrogenase-B. Mol Carcinog 2015; 55:52-63. [PMID: 25620379 DOI: 10.1002/mc.22258] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 10/03/2014] [Accepted: 11/03/2014] [Indexed: 02/04/2023]
Abstract
Previously, we showed that drs contributes to suppression of malignant tumor formation in drs-knockout (KO) mice. In this study, we demonstrate the regulation of glucose metabolism by drs using comparisons of drs-KO and wild-type (WT) mouse embryonic fibroblasts (MEFs). Extracellular acidification, lactate concentration, and glucose consumption in drs-KO cells were significantly greater than those in WT cells. Metabolomic analyses also confirmed enhanced glycolysis in drs-KO cells. Among glycolysis-regulating proteins, expression of lactate dehydrogenase (LDH)-B was upregulated at the post-transcriptional level in drs-KO cells and increased LDH-B expression, LDH activity, and acidification of culture medium in drs-KO cells were suppressed by retroviral rescue of drs, indicating that LDH-B plays a critical role for glycolysis regulation mediated by drs. In WT cells transformed by activated K-ras, expression of endogenous drs mRNA was markedly suppressed and LDH-B expression was increased. In human cancer cell lines with low drs expression, LDH-B expression was increased. Database analyses also showed the correlation between downregulation of drs and upregulation of LDH-B in human colorectal cancer and lung adenocarcinoma tissues. Furthermore, an LDH inhibitor suppressed anchorage-independent growth of human cancer cells and MEF cells transformed by activated K-ras. These results indicate that drs regulates glucose metabolism via LDH-B. Downregulating drs may contribute to the Warburg effect, which is closely associated with malignant progression of cancer cells.
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Affiliation(s)
- Yukihiro Tambe
- Division of Microbiology and Infectious Diseases, Department of Pathology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Masahiro Hasebe
- Division of Microbiology and Infectious Diseases, Department of Pathology, Shiga University of Medical Science, Otsu, Shiga, Japan.,Department of Cell Biology and Bioscience, Nagahama Institute of Bioscience and Technology, Nagahama, Shiga, Japan
| | - Chul Jang Kim
- Department of Urology, Kohka Public Hospital, Kohka, Shiga, Japan
| | - Akitsugu Yamamoto
- Department of Cell Biology and Bioscience, Nagahama Institute of Bioscience and Technology, Nagahama, Shiga, Japan
| | - Hirokazu Inoue
- Division of Microbiology and Infectious Diseases, Department of Pathology, Shiga University of Medical Science, Otsu, Shiga, Japan
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Pawłowski K, Muszewska A, Lenart A, Szczepińska T, Godzik A, Grynberg M. A widespread peroxiredoxin-like domain present in tumor suppression- and progression-implicated proteins. BMC Genomics 2010; 11:590. [PMID: 20964819 PMCID: PMC3091736 DOI: 10.1186/1471-2164-11-590] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2010] [Accepted: 10/21/2010] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Peroxide turnover and signalling are involved in many biological phenomena relevant to human diseases. Yet, all the players and mechanisms involved in peroxide perception are not known. Elucidating very remote evolutionary relationships between proteins is an approach that allows the discovery of novel protein functions. Here, we start with three human proteins, SRPX, SRPX2 and CCDC80, involved in tumor suppression and progression, which possess a conserved region of similarity. Structure and function prediction allowed the definition of P-DUDES, a phylogenetically widespread, possibly ancient protein structural domain, common to vertebrates and many bacterial species. RESULTS We show, using bioinformatics approaches, that the P-DUDES domain, surprisingly, adopts the thioredoxin-like (Thx-like) fold. A tentative, more detailed prediction of function is made, namely, that of a 2-Cys peroxiredoxin. Incidentally, consistent overexpression of all three human P-DUDES genes in two public glioblastoma microarray gene expression datasets was discovered. This finding is discussed in the context of the tumor suppressor role that has been ascribed to P-DUDES proteins in several studies. Majority of non-redundant P-DUDES proteins are found in marine metagenome, and among the bacterial species possessing this domain a trend for a higher proportion of aquatic species is observed. CONCLUSIONS The new protein structural domain, now with a broad enzymatic function predicted, may become a drug target once its detailed molecular mechanism of action is understood in detail.
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Affiliation(s)
- Krzysztof Pawłowski
- Institute of Biochemistry and Biophysics, PAS, Pawińskiego 5A, 02-106 Warsaw, Poland.
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Iwase T, Kushima R, Mukaisho KI, Mitsufuji S, Okanoue T, Hattori T. Overexpression of CD10 and reduced MUC2 expression correlate with the development and progression of colorectal neoplasms. Pathol Res Pract 2005; 201:83-91. [PMID: 15901128 DOI: 10.1016/j.prp.2004.09.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
There are two opposing theories of the natural history of colorectal neoplasm, adenoma-carcinoma sequence and de novo carcinogenesis. To elucidate the histogenesis of colorectal carcinoma, we investigated the expression of CD10, MUC2, MUC5AC, MUC6, and p53 in colorectal neoplasms. Sixty-seven morphologically distinct neoplastic specimens were divided into the following groups according to morphology: adenoma (groups A and B), protruded-type carcinoma (group C), superficial-type carcinoma with adenomatous component (group D), or superficial-type carcinomas without any adenomatous component (group E). Diagnoses of adenomas and carcinomas were based upon the Vienna classification of gastrointestinal epithelial neoplasia. The expression of CD10 in group E lesions was more intense than in the other groups. Regardless of morphology, MUC2 expression was significantly decreased in CD10-positive carcinomas, and the p53-positive rate was much higher in CD10-positive than in CD10-negative carcinomas. The overexpression of CD10 and reduced expression of MUC2 may be associated with the development and progression of colorectal carcinoma. A specific tendency was evident in superficial-type carcinomas without any adenomatous component (de novo carcinomas). These carcinomas are considered to be more aggressive than other morphologically distinct carcinomas.
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Affiliation(s)
- Tsuyoshi Iwase
- Department of Pathology, Shiga University of Medical Science, Seta-Tsukinowa-Cho, Ohtsu, Shiga, Japan
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Tambe Y, Isono T, Haraguchi S, Yoshioka-Yamashita A, Yutsudo M, Inoue H. A novel apoptotic pathway induced by the drs tumor suppressor gene. Oncogene 2004; 23:2977-87. [PMID: 15021917 DOI: 10.1038/sj.onc.1207419] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The drs gene was originally isolated as a suppressor against v-src transformation. Expression of drs mRNA was markedly downregulated in a variety of human cancer cell lines and tissues, suggesting that the drs gene acts as a tumor suppressor. In this study, we found that ectopic expression of the Drs protein induced apoptosis in human cancer cell lines. Analyses using deletion mutants of drs revealed that both the C-terminal region and the three consensus repeats in the N-terminal region are essential for the induction of apoptosis. Caspase-12, -9, and -3 were sequentially activated by drs, and specific inhibitors of caspase-3 and -9 suppressed drs-induced apoptosis. The release of cytochrome c from the mitochondria into the cytoplasm was not observed in apoptosis by drs, suggesting that the mitochondrial pathway does not mediate drs-induced apoptosis. Furthermore, we found that the Drs protein can interact with ASY/Nogo-B/RTN-x(S), an apoptosis-inducing protein localized in the endoplasmic reticulum, and that coexpression of these genes increased the efficiency of apoptosis. These results indicated that Drs induces apoptosis by a novel pathway mediated by ASY/Nogo-B/RTN-x(S), caspase-12, -9, and -3.
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Affiliation(s)
- Yukihiro Tambe
- Department of Microbiology, Shiga University of Medical Science, Otsu, Shiga 520-2192, Japan
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