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Mello-Grand M, Bruno A, Sacchetto L, Cristoni S, Gregnanin I, Dematteis A, Zitella A, Gontero P, Peraldo-Neia C, Ricotta R, Noonan DM, Albini A, Chiorino G. Two Novel Ceramide-Like Molecules and miR-5100 Levels as Biomarkers Improve Prediction of Prostate Cancer in Gray-Zone PSA. Front Oncol 2021; 11:769158. [PMID: 34868998 PMCID: PMC8640468 DOI: 10.3389/fonc.2021.769158] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 10/25/2021] [Indexed: 01/04/2023] Open
Abstract
Reliable liquid biopsy-based tools able to accurately discriminate prostate cancer (PCa) from benign prostatic hyperplasia (BPH), when PSA is within the “gray zone” (PSA 4–10), are still urgent. We analyzed plasma samples from a cohort of 102 consecutively recruited patients with PSA levels between 4 and 16 ng/ml, using the SANIST-Cloud Ion Mobility Metabolomic Mass Spectrometry platform, combined with the analysis of a panel of circulating microRNAs (miR). By coupling CIMS ion mobility technology with SANIST, we were able to reveal three new structures among the most differentially expressed metabolites in PCa vs. BPH. In particular, two were classified as polyunsaturated ceramide ester-like and one as polysaturated glycerol ester-like. Penalized logistic regression was applied to build a model to predict PCa, using six circulating miR, seven circulating metabolites, and demographic/clinical variables, as covariates. Four circulating metabolites, miR-5100, and age were selected by the model, and the corresponding prediction score gave an AUC of 0.76 (C.I. = 0.66–0.85). At a specified cut-off, no high-risk tumor was misclassified, and 22 out of 53 BPH were correctly identified, reducing by 40% the false positives of PSA. We developed and applied a novel, minimally invasive, liquid biopsy-based powerful tool to characterize novel metabolites and identified new potential non-invasive biomarkers to better predict PCa, when PSA is uninformative as a tool for precision medicine in genitourinary cancers.
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Affiliation(s)
| | - Antonino Bruno
- Laboratory of Innate Immunity, Unit of Molecular Pathology, Biochemistry, and Immunology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) MultiMedica, Milan, Italy
| | - Lidia Sacchetto
- Department of Mathematical Sciences, Politecnico di Torino, Torino, Italy
| | - Simone Cristoni
- I.S.B.-Ion Source & Biotechnologies srl, Biotechnology, Bresso, Italy
| | - Ilaria Gregnanin
- Cancer Genomics Laboratory, Fondazione Edo ed Elvo Tempia, Biella, Italy
| | - Alessandro Dematteis
- Department of Urology, San Giovanni Battista Hospital of Torino, Corso Torino, Italy
| | - Andrea Zitella
- Department of Urology, San Giovanni Battista Hospital of Torino, Corso Torino, Italy
| | - Paolo Gontero
- Department of Urology, San Giovanni Battista Hospital of Torino, Corso Torino, Italy
| | | | - Riccardo Ricotta
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) MultiMedica, Milan, Italy
| | - Douglas M Noonan
- Immunology and General Pathology Laboratory, Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy.,Unit of Molecular Pathology, Biochemistry, and Immunology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) MultiMedica, Milan, Italy
| | - Adriana Albini
- Laboratory of Vascular Cell Biology and Angiogenesis Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) MultiMedica, Milan, Italy
| | - Giovanna Chiorino
- Cancer Genomics Laboratory, Fondazione Edo ed Elvo Tempia, Biella, Italy
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Wang W, Toran PT, Sabol R, Brown TJ, Barth BM. Epigenetics and Sphingolipid Metabolism in Health and Disease. ACTA ACUST UNITED AC 2019; 1. [PMID: 30637412 DOI: 10.31021/ijbs.20181105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Sphingolipids represent one of the major classes of bioactive lipids. Studies of sphingolipids have intensified in the past several years, revealing their roles in nearly all cell biological processes. In addition, epigenetic regulation has gained substantial interest due to its role in controlling gene expression and activity without changing the genetic code. In this review, we first introduce a brief background on sphingolipid biology, highlighting its role in pathophysiology. We then illustrate the concept of epigenetic regulation, focusing on how it affects the metabolism of sphingolipids. We further discuss the roles of bioactive sphingolipids as epigenetic regulators themselves. Overall, a better understanding of the relationship between epigenetics and sphingolipid metabolism may help to improve the development of sphingolipid-targeted therapeutics.
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Affiliation(s)
- Weiyuan Wang
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, NH 03824 USA
| | - Paul T Toran
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, NH 03824 USA
| | - Rachel Sabol
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, NH 03824 USA
| | - Timothy J Brown
- Department of Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390 USA
| | - Brian M Barth
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, NH 03824 USA
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Jeong AL, Han S, Lee S, Su Park J, Lu Y, Yu S, Li J, Chun KH, Mills GB, Yang Y. Patient derived mutation W257G of PPP2R1A enhances cancer cell migration through SRC-JNK-c-Jun pathway. Sci Rep 2016; 6:27391. [PMID: 27272709 PMCID: PMC4895347 DOI: 10.1038/srep27391] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 05/17/2016] [Indexed: 01/20/2023] Open
Abstract
Mutation of PPP2R1A has been observed at high frequency in endometrial serous carcinomas but at low frequency in ovarian clear cell carcinoma. However, the biological role of mutation of PPP2R1A in ovarian and endometrial cancer progression remains unclear. In this study, we found that PPP2R1A expression is elevated in high-grade primary tumor patients with papillary serous tumors of the ovary. To determine whether increased levels or mutation of PPP2R1A might contribute to cancer progression, the effects of overexpression or mutation of PPP2R1A on cell proliferation, migration, and PP2A phosphatase activity were investigated using ovarian and endometrial cancer cell lines. Among the mutations, PPP2R1A-W257G enhanced cell migration in vitro through activating SRC-JNK-c-Jun pathway. Overexpression of wild type (WT) PPP2R1A increased its binding ability with B56 regulatory subunits, whereas PPP2R1A-mutations lost the ability to bind to most B56 subunits except B56δ. Total PP2A activity and PPP2R1A-associated PP2Ac activity were significantly increased in cells overexpressing PPP2R1A-WT. In addition, overexpression of PPP2R1A-WT increased cell proliferation in vitro and tumor growth in vivo.
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Affiliation(s)
- Ae Lee Jeong
- Department of Biological Sciences, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Sora Han
- Department of Biological Sciences, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Sunyi Lee
- Department of Biological Sciences, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Jeong Su Park
- Department of Biological Sciences, Sookmyung Women's University, Seoul 140-742, Republic of Korea
| | - Yiling Lu
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Shuangxing Yu
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Jane Li
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Kyung-Hee Chun
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Gordon B Mills
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Young Yang
- Department of Biological Sciences, Sookmyung Women's University, Seoul 140-742, Republic of Korea
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Kiely M, Kiely PA. PP2A: The Wolf in Sheep's Clothing? Cancers (Basel) 2015; 7:648-69. [PMID: 25867001 PMCID: PMC4491676 DOI: 10.3390/cancers7020648] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 03/16/2015] [Accepted: 03/23/2015] [Indexed: 12/21/2022] Open
Abstract
Protein Phosphatase 2A (PP2A) is a major serine/threonine phosphatase in cells. It consists of a catalytic subunit (C), a structural subunit (A), and a regulatory/variable B-type subunit. PP2A has a critical role to play in homeostasis where its predominant function is as a phosphatase that regulates the major cell signaling pathways in cells. Changes in the assembly, activity and substrate specificity of the PP2A holoenzyme have a direct role in disease and are a major contributor to the maintenance of the transformed phenotype in cancer. We have learned a lot about how PP2A functions from specific mutations that disrupt the core assembly of PP2A and from viral proteins that target PP2A and inhibit its effect as a phosphatase. This prompted various studies revealing that restoration of PP2A activity benefits some cancer patients. However, our understanding of the mechanism of action of this is limited because of the complex nature of PP2A holoenzyme assembly and because it acts through a wide variety of signaling pathways. Information on PP2A is also conflicting as there are situations whereby inactivation of PP2A induces apoptosis in many cancer cells. In this review we discuss this relationship and we also address many of the pertinent and topical questions that relate to novel therapeutic strategies aimed at altering PP2A activity.
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Affiliation(s)
- Maeve Kiely
- Department of Life Sciences, and Materials and Surface Science Institute, University of Limerick, Limerick 78666, Ireland.
| | - Patrick A Kiely
- Department of Life Sciences, and Materials and Surface Science Institute, University of Limerick, Limerick 78666, Ireland.
- Stokes Institute, University of Limerick 78666, Limerick, Ireland.
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Liu H, Gu Y, Yin J, Zheng G, Wang C, Zhang Z, Deng M, Liu J, Jia X, He Z. SET-mediated NDRG1 inhibition is involved in acquisition of epithelial-to-mesenchymal transition phenotype and cisplatin resistance in human lung cancer cell. Cell Signal 2014; 26:2710-20. [PMID: 25152373 DOI: 10.1016/j.cellsig.2014.08.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 08/15/2014] [Indexed: 12/22/2022]
Abstract
Development of resistance to therapy continues to be a serious clinical problem in lung cancer management. Cancer cells undergoing epithelial-to-mesenchymal transition (EMT) have been shown to play roles in resistance to chemotherapy. Here, we utilized a proteomics-based method and identified a significant downregulation of the metastasis suppressor NDRG1 in drug resistant lung cancer cells. We showed that downregulation of DNRG1 constitutes a mechanism for acquisition of EMT phenotype and endows lung cancer cells with an increased resistance to cisplatin. We also identified a signal cascade, namely, SET--| PP2A--| c-myc--| NDRG1, in which upregulation of SET is critical for inhibition of NDRG1. We also found that blockade of SET (or reactivation of PP2A) by FTY720 reverted EMT, restored drug sensitivity, and inhibited invasiveness and growth of lung tumor xenografts. Together, our results indicated a functional link between SET-mediated NDRG1 regulation and acquisition of EMT phenotype and drug resistance, and provided an evidence that blockade of SET-driven EMT can overcome drug resistance and inhibit tumor progression.
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Affiliation(s)
- Hao Liu
- Cancer Hospital and Cancer Research Institute, Guangzhou Medical University, Guangzhou, China
| | - Yixue Gu
- Cancer Hospital and Cancer Research Institute, Guangzhou Medical University, Guangzhou, China
| | - Jiang Yin
- Cancer Hospital and Cancer Research Institute, Guangzhou Medical University, Guangzhou, China
| | - Guopei Zheng
- Cancer Hospital and Cancer Research Institute, Guangzhou Medical University, Guangzhou, China
| | - Chenkun Wang
- Cancer Hospital and Cancer Research Institute, Guangzhou Medical University, Guangzhou, China
| | - Zhijie Zhang
- Cancer Hospital and Cancer Research Institute, Guangzhou Medical University, Guangzhou, China
| | - Min Deng
- Cancer Hospital and Cancer Research Institute, Guangzhou Medical University, Guangzhou, China
| | - Jifang Liu
- Cancer Hospital and Cancer Research Institute, Guangzhou Medical University, Guangzhou, China
| | - Xiaoting Jia
- Cancer Hospital and Cancer Research Institute, Guangzhou Medical University, Guangzhou, China
| | - Zhimin He
- Cancer Hospital and Cancer Research Institute, Guangzhou Medical University, Guangzhou, China.
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