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Kothapalli KSD, Park HG, Kothapalli NSL, Brenna JT. FADS2 function at the major cancer hotspot 11q13 locus alters fatty acid metabolism in cancer. Prog Lipid Res 2023; 92:101242. [PMID: 37597812 DOI: 10.1016/j.plipres.2023.101242] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/31/2023] [Accepted: 08/15/2023] [Indexed: 08/21/2023]
Abstract
Dysregulation of fatty acid metabolism and de novo lipogenesis is a key driver of several cancer types through highly unsaturated fatty acid (HUFA) signaling precursors such as arachidonic acid. The human chromosome 11q13 locus has long been established as the most frequently amplified in a variety of human cancers. The fatty acid desaturase genes (FADS1, FADS2 and FADS3) responsible for HUFA biosynthesis localize to the 11q12-13.1 region. FADS2 activity is promiscuous, catalyzing biosynthesis of several unsaturated fatty acids by Δ6, Δ8, and Δ4 desaturation. Our main aim here is to review known and putative consequences of FADS2 dysregulation due to effects on the 11q13 locus potentially driving various cancer types. FADS2 silencing causes synthesis of sciadonic acid (5Z,11Z,14Z-20:3) in MCF7 cells and breast cancer in vivo. 5Z,11Z,14Z-20:3 is structurally identical to arachidonic acid (5Z,8Z,11Z,14Z-20:4) except it lacks the internal Δ8 double bond required for prostaglandin and leukotriene synthesis, among other eicosanoids. Palmitic acid has substrate specificity for both SCD and FADS2. Melanoma, prostate, liver and lung cancer cells insensitive to SCD inhibition show increased FADS2 activity and sapienic acid biosynthesis. Elevated serum mead acid levels found in hepatocellular carcinoma patients suggest an unsatisfied demand for arachidonic acid. FADS2 circular RNAs are at high levels in colorectal and lung cancer tissues. FADS2 circular RNAs are associated with shorter overall survival in colorectal cancer patients. The evidence thusfar supports an effort for future research on the role of FADS2 as a tumor suppressor in a range of neoplastic disorders.
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Affiliation(s)
- Kumar S D Kothapalli
- Dell Pediatric Research Institute, Dell Medical School and Department of Nutritional Sciences, The University of Texas at Austin, 1400 Barbara Jordan Blvd, Austin, TX 78723, USA.
| | - Hui Gyu Park
- Dell Pediatric Research Institute, Dell Medical School and Department of Nutritional Sciences, The University of Texas at Austin, 1400 Barbara Jordan Blvd, Austin, TX 78723, USA
| | | | - J Thomas Brenna
- Dell Pediatric Research Institute, Dell Medical School and Department of Nutritional Sciences, The University of Texas at Austin, 1400 Barbara Jordan Blvd, Austin, TX 78723, USA.
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2
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Zhang L, Dan Y, Ou C, Qian H, Yin Y, Tang M, He Q, Peng C, He A. Identification and validation of novel biomarker TRIM8 related to cervical cancer. Front Oncol 2022; 12:1002040. [PMID: 36353542 PMCID: PMC9638460 DOI: 10.3389/fonc.2022.1002040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 10/06/2022] [Indexed: 11/24/2022] Open
Abstract
Background Cervical cancer, as a common gynecological disease, endangers female health. Give the lack of effective biomarkers for the diagnosis and treatment of cervical cancer, this paper aims to analyze the Gene Expression Omnibus (GEO) data sets using comprehensive bioinformatics tools, and to identify biomarkers associated with the cancer in patient samples. Methods The bioinformatics methods were used to extract genes related to cervical cancer from GSE39001, while the GEO2R online tool to elaborate on differentially expressed genes (DEGs) in normal and cancer samples, and to clarify related genes and functions. The results were verified by IHC, WB, CCK-8, clone formation and flow cytometry experiments. Results A total of 2,859 DEGs were identified in the GEO microarray dataset. We extracted genes associated with both ubiquitination and autophagy from the key modules of weighted gene co-expression network analysis (WGCNA), and the analysis showed that TRIM8 was of great significance for the diagnosis and prognosis of cervical cancer. Besides, experimental validation showed the high TRIM8 expression in cervical cancer, as well as its involvement in the proliferation of cervical cancer cells. Conclusion We identified a biomarker (TRIM8) that may be related to cervical cancer through a series of analyses on the GEO dataset. Experimental verification confirmed the inhibition of cervical cancer cells proliferation by lowering TRIM8 expression. Therefore, TRIM8 can be adopted as a new biomarker of cervical cancer to develop new therapeutic targets.
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Affiliation(s)
- Li Zhang
- Department of Cancer Research Center, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Youli Dan
- Department of Gynecology Oncology, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Chaoyang Ou
- Department of Gynecology Oncology, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Hongyan Qian
- Department of Cancer Research Center, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Yi Yin
- Department of Gynecology Oncology, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Min Tang
- Department of Clinical Laboratory Diagnostics, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Qian He
- Department of Gynecology Oncology, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Chen Peng
- Department of Gynecology and Obstetrics, The Affiliated Hospital of Nantong University, Nantong, China
- *Correspondence: Aiqin He, ; Chen Peng,
| | - Aiqin He
- Department of Gynecology Oncology, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
- *Correspondence: Aiqin He, ; Chen Peng,
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3
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Emerging Roles of TRIM8 in Health and Disease. Cells 2021; 10:cells10030561. [PMID: 33807506 PMCID: PMC7998878 DOI: 10.3390/cells10030561] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/24/2021] [Accepted: 03/01/2021] [Indexed: 02/07/2023] Open
Abstract
The superfamily of TRIM (TRIpartite Motif-containing) proteins is one of the largest groups of E3 ubiquitin ligases. Among them, interest in TRIM8 has greatly increased in recent years. In this review, we analyze the regulation of TRIM8 gene expression and how it is involved in many cell reactions in response to different stimuli such as genotoxic stress and attacks by viruses or bacteria, playing a central role in the immune response and orchestrating various fundamental biological processes such as cell survival, carcinogenesis, autophagy, apoptosis, differentiation and inflammation. Moreover, we show how TRIM8 functions are not limited to ubiquitination, and contrasting data highlight its role either as an oncogene or as a tumor suppressor gene, acting as a “double-edged weapon”. This is linked to its involvement in the selective regulation of three pivotal cellular signaling pathways: the p53 tumor suppressor, NF-κB and JAK-STAT pathways. Lastly, we describe how TRIM8 dysfunctions are linked to inflammatory processes, autoimmune disorders, rare developmental and cardiovascular diseases, ischemia, intellectual disability and cancer.
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Marzano F, Caratozzolo MF, Pesole G, Sbisà E, Tullo A. TRIM Proteins in Colorectal Cancer: TRIM8 as a Promising Therapeutic Target in Chemo Resistance. Biomedicines 2021; 9:biomedicines9030241. [PMID: 33673719 PMCID: PMC7997459 DOI: 10.3390/biomedicines9030241] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/16/2021] [Accepted: 02/23/2021] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer (CRC) represents one of the most widespread forms of cancer in the population and, as all malignant tumors, often develops resistance to chemotherapies with consequent tumor growth and spreading leading to the patient’s premature death. For this reason, a great challenge is to identify new therapeutic targets, able to restore the drugs sensitivity of cancer cells. In this review, we discuss the role of TRIpartite Motifs (TRIM) proteins in cancers and in CRC chemoresistance, focusing on the tumor-suppressor role of TRIM8 protein in the reactivation of the CRC cells sensitivity to drugs currently used in the clinical practice. Since the restoration of TRIM8 protein levels in CRC cells recovers chemotherapy response, it may represent a new promising therapeutic target in the treatment of CRC.
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Affiliation(s)
- Flaviana Marzano
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council, CNR, 70126 Bari, Italy; (F.M.); (M.F.C.); (G.P.)
| | - Mariano Francesco Caratozzolo
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council, CNR, 70126 Bari, Italy; (F.M.); (M.F.C.); (G.P.)
| | - Graziano Pesole
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council, CNR, 70126 Bari, Italy; (F.M.); (M.F.C.); (G.P.)
- Department of Biosciences, Biotechnology and Biopharmaceutics, University of Bari, “Aldo Moro”, 70125 Bari, Italy
| | - Elisabetta Sbisà
- Institute for Biomedical Technologies, National Research Council, CNR, 70126 Bari, Italy;
| | - Apollonia Tullo
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council, CNR, 70126 Bari, Italy; (F.M.); (M.F.C.); (G.P.)
- Correspondence:
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Mandell MA, Saha B, Thompson TA. The Tripartite Nexus: Autophagy, Cancer, and Tripartite Motif-Containing Protein Family Members. Front Pharmacol 2020; 11:308. [PMID: 32226386 PMCID: PMC7081753 DOI: 10.3389/fphar.2020.00308] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 03/02/2020] [Indexed: 12/12/2022] Open
Abstract
Autophagy is a cellular degradative process that has multiple important actions in cancer. Autophagy modulation is under consideration as a promising new approach to cancer therapy. However, complete autophagy dysregulation is likely to have substantial undesirable side effects. Thus, more targeted approaches to autophagy modulation may prove clinically beneficial. One potential avenue to achieving this goal is to focus on the actions of tripartite motif-containing protein family members (TRIMs). TRIMs have key roles in an array of cellular processes, and their dysregulation has been extensively linked to cancer risk and prognosis. As detailed here, emerging data shows that TRIMs can play important yet context-dependent roles in controlling autophagy and in the selective targeting of autophagic substrates. This review covers how the autophagy-related actions of TRIM proteins contribute to cancer and the possibility of targeting TRIM-directed autophagy in cancer therapy.
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Affiliation(s)
- Michael A Mandell
- Department of Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, NM, United States.,Autophagy, Inflammation and Metabolism Center of Biomedical Research Excellence, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Bhaskar Saha
- Department of Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Todd A Thompson
- Autophagy, Inflammation and Metabolism Center of Biomedical Research Excellence, University of New Mexico Health Sciences Center, Albuquerque, NM, United States.,Department of Pharmaceutical Sciences, University of New Mexico College of Pharmacy, Albuquerque, NM, United States
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Flentie K, Gonzalez C, Kocher B, Wang Y, Zhu H, Marasa J, Piwnica-Worms D. Nucleoside Diphosphate Kinase-3 ( NME3) Enhances TLR5-Induced NF κB Activation. Mol Cancer Res 2018. [PMID: 29523766 DOI: 10.1158/1541-7786.mcr-17-0603] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Bacterial flagellin is a potent activator of NFκB signaling, inflammation, and host innate immunity, and recent data indicate that flagellin represents a novel antitumor ligand acting through toll-like receptor 5 (TLR5) and the NFκB pathway to induce host immunity and aid in the clearance of tumor xenografts. To identify innate signaling components of TLR5 responsible for these antitumor effects, a loss-of-function high-throughput screen was employed utilizing carcinoma cells expressing a dynamic NFκB bioluminescent reporter stimulated by Salmonella typhimurium expressing flagellin. A live cell screen of a siRNA library targeting 691 known and predicted human kinases to identify novel tumor cell modulators of TLR5-induced NFκB activation uncovered several interesting positive and negative candidate regulators not previously recognized, including nucleoside diphosphate kinase 3 (NME3), characterized as an enhancer of signaling responses to flagellin. Targeted knockdown and overexpression assays confirmed the regulatory contribution of NME3 to TLR5-mediated NFκB signaling, mechanistically downstream of MyD88. Furthermore, Kaplan-Meier survival analysis showed that NME3 expression correlated highly with TLR5 expression in breast, lung, ovarian, and gastric cancers, and furthermore, high-level expression of NME3 increased overall survival for patients with breast, lung, and ovarian cancer, but the opposite in gastric cancer. Together, these data identify a previously unrecognized proinflammatory role for NME3 in signaling downstream of TLR5 that may potentiate cancer immunotherapies.Implications: Proinflammatory signaling mediated by innate immunity engagement of flagellin-activated TLR5 in tumor cells results in antitumor effects through NME3 kinase, a positive downstream regulator of flagellin-mediated NFκB signaling, enhancing survival for several human cancers. Mol Cancer Res; 16(6); 986-99. ©2018 AACR.
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Affiliation(s)
- Kelly Flentie
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - Caleb Gonzalez
- Department of Cancer Systems Imaging, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Brandon Kocher
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - Yue Wang
- Department of Biostatistics, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hongtu Zhu
- Department of Biostatistics, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jayne Marasa
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - David Piwnica-Worms
- Department of Cancer Systems Imaging, University of Texas MD Anderson Cancer Center, Houston, Texas.
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Li JZH, Gao W, Lei WB, Zhao J, Chan JYW, Wei WI, Ho WK, Wong TS. MicroRNA 744-3p promotes MMP-9-mediated metastasis by simultaneously suppressing PDCD4 and PTEN in laryngeal squamous cell carcinoma. Oncotarget 2018; 7:58218-58233. [PMID: 27533461 PMCID: PMC5295426 DOI: 10.18632/oncotarget.11280] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 08/08/2016] [Indexed: 12/25/2022] Open
Abstract
MicroRNA controls cancer invasion by governing the expression of gene regulating migration and invasion. Here, we reported a novel regulatory pathway controlled by miR-744-3p, which enhanced expression of matrix metallopeptidase 9 (MMP-9) in laryngeal squamous cell carcinoma (LSCC). We profiled the differential micoRNA expression pattern in LSCC cell lines and normal epithelial cultures derived from the head and neck mucosa using microRNA microarray. MiR-7-1-3p, miR-196a/b and miR-744-3p were expressed differentially in the LSCC cell lines. Subsequent validation using real-time PCR revealed that high miR-744-3p level was positively correlated with regional lymph node metastasis of LSCC. Real-time cellular kinetic analysis showed that suppressing miR-744-3p could inhibit migration and invasion of LSCC cell lines and reduce the number of lung metastatic nodules in nude mice modules. In silico analysis revealed that miR-744-3p targeted 2 distinct signaling cascades which eventually upregulated MMP-9 expression in LSCC. First, miR-744-3p could suppress programmed cell death 4 (PDCD4), a direct suppressor of NF-κB (p65). PDCD4 could also prevent AKT activation and suppress MMP-9 expression. Further, suppressing miR-744-3p expression could restore phosphatase and tensin homolog (PTEN) expression. PTEN could inhibit AKT activation and inhibit MMP-9 expression in LSCC cells. The results revealed that suppressing miR-744-3p was effective to inhibit LSCC metastasis by inactivating AKT/mTOR and NF-κB (p65) signaling cascade. Targeting miR-744-3p could be a valuable therapeutic intervention to suppress the aggressiveness of LSCC.
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Affiliation(s)
- John Zeng-Hong Li
- Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Hong Kong.,Department of Otolaryngology, The First People's Hospital of Foshan, Foshan, People's Republic of China
| | - Wei Gao
- Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Hong Kong
| | - Wen-Bin Lei
- Department of Otolaryngology, The First Affiliated Hospital of Sun Yet-Sen University, Guangdong, People's Republic of China
| | - Jing Zhao
- Department of Otolaryngology, The First Affiliated Hospital of Sun Yet-Sen University, Guangdong, People's Republic of China
| | - Jimmy Yu-Wai Chan
- Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Hong Kong
| | - William Ignace Wei
- Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Hong Kong
| | - Wei-Kuen Ho
- Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Hong Kong
| | - Thian-Sze Wong
- Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Hong Kong
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8
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Caratozzolo MF, Marzano F, Mastropasqua F, Sbisà E, Tullo A. TRIM8: Making the Right Decision between the Oncogene and Tumour Suppressor Role. Genes (Basel) 2017; 8:genes8120354. [PMID: 29182544 PMCID: PMC5748672 DOI: 10.3390/genes8120354] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 11/20/2017] [Accepted: 11/23/2017] [Indexed: 12/27/2022] Open
Abstract
The TRIM8/GERP protein is a member of the TRIM family defined by the presence of a common domain structure composed of a tripartite motif including a RING-finger, one or two B-box domains, and a coiled-coil motif. The TRIM8 gene maps on chromosome 10 within a region frequently found deleted and rearranged in tumours and transcribes a 3.0-kB mRNA. Its expression is mostly ubiquitously in murine and human tissues, and in epithelial and lymphoid cells, it can be induced by IFNγ. The protein spans 551 aa and is highly conserved during evolution. TRIM8 plays divergent roles in many biological processes, including important functions in inflammation and cancer through regulating various signalling pathways. In regulating cell growth, TRIM8 exerts either a tumour suppressor action, playing a prominent role in regulating p53 tumour suppressor activity, or an oncogene function, through the positive regulation of the NF-κB pathway. The molecular mechanisms underlying this dual role in human cancer will be discussed in depth in this review, and it will highlight the challenge and importance of developing novel therapeutic strategies specifically aimed at blocking the pro-oncogenic arm of the TRIM8 signalling pathway without affecting its tumour suppressive effects.
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Affiliation(s)
- Mariano Francesco Caratozzolo
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, IBIOM-CNR, Via G. Amendola, 165/A-70126 Bari, Italy.
| | - Flaviana Marzano
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, IBIOM-CNR, Via G. Amendola, 165/A-70126 Bari, Italy.
| | - Francesca Mastropasqua
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, IBIOM-CNR, Via G. Amendola, 165/A-70126 Bari, Italy.
| | - Elisabetta Sbisà
- Institute for Biomedical Technologies ITB, CNR-Bari, Via G. Amendola, 122/D-70126 Bari, Italy.
| | - Apollonia Tullo
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, IBIOM-CNR, Via G. Amendola, 165/A-70126 Bari, Italy.
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Tonella L, Giannoccaro M, Alfieri S, Canevari S, De Cecco L. Gene Expression Signatures for Head and Neck Cancer Patient Stratification: Are Results Ready for Clinical Application? Curr Treat Options Oncol 2017; 18:32. [PMID: 28474265 DOI: 10.1007/s11864-017-0472-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OPINION STATEMENT Head and neck squamous cell carcinoma (HNSCC) is the sixth leading cancer by incidence worldwide and considering the recent EUROCARE-5 population-based study the 5-year survival rate of HNSCC patients in Europe ranges between 69% in localized cases and 34% in patients with regional involvement. The development of high-throughput gene expression assays in the last two decades has provided the invaluable opportunity to improve our knowledge on cancer biology and to identify predictive signatures in the most deeply analyzed malignancies, such as hematological and breast cancers. At variance, till 2010, the number of reliable reports referring gene expression data related to HSNCC biology and prediction was quite limited. A critical revision of the literature reporting gene expression data in HNSCC indicated that in the last 6 years, there were new important studies with a relevant increase in the sample size and a more accurate selection of cases, the publication of a growing number of studies applying a computational integration (meta-analysis) of different microarray datasets addressing similar clinical/biological questions, the increased use of molecular sub-classification of tumors according to their gene expression, and the release of the publicly available largest dataset in HNSCC by The Cancer Genome Atlas (TCGA) consortium. Overall, also for this disease, it become evident that the expression analysis of the entire transcriptome has been enabling to achieve the identification of promising molecular signatures for (i) disclosure of the biology behind carcinogenesis with special focus on the HPV-related one, (ii) prediction of tumor recurrence or metastasis development, (iii) identification of subgroups of tumors with different biology and associated prognosis, and (iv) prediction of outcome and/or response to therapy. The increasing awareness of the relevance of strict collaboration among clinicians and translational researchers would in a near future enable the application of a personalized HNSCCs patients' treatment in the clinical practice based also on gene expression signatures.
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Affiliation(s)
- Luca Tonella
- Functional Genomics and Bioinformatics, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, via Amadeo 42, 20133, Milan, Italy
| | - Marco Giannoccaro
- Functional Genomics and Bioinformatics, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, via Amadeo 42, 20133, Milan, Italy
| | - Salvatore Alfieri
- Head and Neck Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, via Venezian 1, 20133, Milan, Italy
| | - Silvana Canevari
- Functional Genomics and Bioinformatics, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, via Amadeo 42, 20133, Milan, Italy.
| | - Loris De Cecco
- Functional Genomics and Bioinformatics, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, via Amadeo 42, 20133, Milan, Italy.
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10
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Chen L, Huang J, Ji YX, Mei F, Wang PX, Deng KQ, Jiang X, Ma G, Li H. Tripartite Motif 8 Contributes to Pathological Cardiac Hypertrophy Through Enhancing Transforming Growth Factor β–Activated Kinase 1–Dependent Signaling Pathways. Hypertension 2017; 69:249-258. [DOI: 10.1161/hypertensionaha.116.07741] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 05/26/2016] [Accepted: 11/26/2016] [Indexed: 11/16/2022]
Abstract
Tripartite motif (TRIM) 8 functions as an E3 ubiquitin ligase, interacting with and ubiquitinating diverse substrates, and is implicated in various pathological processes. However, the function of TRIM8 in the heart remains largely uncharacterized. This study aims to explore the role of TRIM8 in the development of pathological cardiac hypertrophy. Mice and isolated neonatal rat cardiomyocytes overexpressing or lacking TRIM8 were examined in several experiments. The effect of aortic banding–induced cardiac hypertrophy was analyzed by echocardiographic, pathological and molecular analyses. Our results indicated that the TRIM8 overexpression in hearts exacerbated the cardiac hypertrophy triggered by aortic banding. In contrast, the development of pathological cardiac hypertrophy was profoundly blocked in TRIM8-deficient hearts. Mechanistically, our study suggests that TRIM8 may elicit cardiodetrimental effects by promoting the activation of transforming growth factor β–activated kinase 1 (TAK1)-p38/JNK signaling pathways. Similar results were observed in cultured neonatal rat cardiomyocytes treated with angiotensin II. The rescue experiments using the TAK1-specific inhibitor 5z-7-ox confirmed the requirement of TAK1 activation in TRIM8-mediated pathological cardiac hypertrophy. Furthermore, TRIM8 contributed to TAK1 activation by binding to and promoting TAK1 ubiquitination. In conclusion, our study demonstrates that TRIM8 plays a deleterious role in pressure overload–induced cardiac hypertrophy by accelerating the activation of TAK1-dependent signaling pathways.
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Affiliation(s)
- Lijuan Chen
- From the Department of Cardiology, Zhongda Hospital Affiliated to Southeast University Jiangsu, China (L.C., J.H., G.M.); Animal Experiment Center/Animal Biosafety Level-III Laboratory (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.) and Medical Research Institute, School of Medicine (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.), Wuhan University, China
| | - Jia Huang
- From the Department of Cardiology, Zhongda Hospital Affiliated to Southeast University Jiangsu, China (L.C., J.H., G.M.); Animal Experiment Center/Animal Biosafety Level-III Laboratory (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.) and Medical Research Institute, School of Medicine (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.), Wuhan University, China
| | - Yan-xiao Ji
- From the Department of Cardiology, Zhongda Hospital Affiliated to Southeast University Jiangsu, China (L.C., J.H., G.M.); Animal Experiment Center/Animal Biosafety Level-III Laboratory (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.) and Medical Research Institute, School of Medicine (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.), Wuhan University, China
| | - Fanghua Mei
- From the Department of Cardiology, Zhongda Hospital Affiliated to Southeast University Jiangsu, China (L.C., J.H., G.M.); Animal Experiment Center/Animal Biosafety Level-III Laboratory (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.) and Medical Research Institute, School of Medicine (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.), Wuhan University, China
| | - Pi-xiao Wang
- From the Department of Cardiology, Zhongda Hospital Affiliated to Southeast University Jiangsu, China (L.C., J.H., G.M.); Animal Experiment Center/Animal Biosafety Level-III Laboratory (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.) and Medical Research Institute, School of Medicine (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.), Wuhan University, China
| | - Ke-qiong Deng
- From the Department of Cardiology, Zhongda Hospital Affiliated to Southeast University Jiangsu, China (L.C., J.H., G.M.); Animal Experiment Center/Animal Biosafety Level-III Laboratory (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.) and Medical Research Institute, School of Medicine (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.), Wuhan University, China
| | - Xi Jiang
- From the Department of Cardiology, Zhongda Hospital Affiliated to Southeast University Jiangsu, China (L.C., J.H., G.M.); Animal Experiment Center/Animal Biosafety Level-III Laboratory (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.) and Medical Research Institute, School of Medicine (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.), Wuhan University, China
| | - Genshan Ma
- From the Department of Cardiology, Zhongda Hospital Affiliated to Southeast University Jiangsu, China (L.C., J.H., G.M.); Animal Experiment Center/Animal Biosafety Level-III Laboratory (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.) and Medical Research Institute, School of Medicine (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.), Wuhan University, China
| | - Hongliang Li
- From the Department of Cardiology, Zhongda Hospital Affiliated to Southeast University Jiangsu, China (L.C., J.H., G.M.); Animal Experiment Center/Animal Biosafety Level-III Laboratory (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.) and Medical Research Institute, School of Medicine (Y.-x.J., F.M., P.-x.W., K.-q.D., X.J., H.L.), Wuhan University, China
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11
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Lu M, Zhu H, Wang X, Zhang D, Xiong L, Zhu J, Mao Y, Qiang J. LAMP1 expression is associated with malignant behaviours and predicts unfavourable prognosis in laryngeal squamous cell carcinoma. Pathology 2016; 48:684-690. [PMID: 27788920 DOI: 10.1016/j.pathol.2016.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 05/30/2016] [Accepted: 08/10/2016] [Indexed: 12/27/2022]
Abstract
Lysosome-associated membrane protein-1 (LAMP1) has been suggested to play complicated roles in cancer development and metastasis. The aim of this study was to explore the expression of LAMP1 in laryngeal squamous cell carcinoma (LSCC) and investigate the relationship between LAMP1 expression and clinicopathological characteristics in LSCC patients. One-step quantitative reverse transcription PCR (qPCR) tests (20 fresh LSCC and non-cancerous tissue samples) and immunohistochemistry (IHC) analyses (137 paraffin-embedded LSCC and non-cancerous tissue samples) were performed to evaluate the LAMP1 expression in both mRNA and protein levels. Results showed that the expression of LAMP1 in LSCC tissues was significantly higher than that in non-cancerous tissues. Furthermore, the expression level of LAMP1 protein was statistically associated with lymph node metastasis and TNM stage. Results of Kaplan-Meier survival and Cox regression analyses revealed that LSCC patients with high LAMP1 cytoplasmic expression (p=0.044), high cytoplasmic+low mesenchymal expression of LAMP1 (H+L) (p=0.015) and histopathological grade (p=0.014) encountered poor overall survival. The data implied that high LAMP1 expression is associated with unfavourable prognosis in LSCC patients, and LAMP1 may be identified as a novel prognostic biomarker.
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Affiliation(s)
- Meiping Lu
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Huijun Zhu
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, China
| | - Xudong Wang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Dawei Zhang
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lin Xiong
- Department of Pathology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jin Zhu
- The Key Laboratory of Cancer Biomarkers, Prevention and Treatment Cancer Center and The Key Laboratory of Antibody Technique of Ministry of Health, Nanjing Medical University, Nanjing, China
| | - Yuan Mao
- Department of Hematology and Oncology, Jiangsu Province Geriatric Hospital, Nanjing, China.
| | - Jianfeng Qiang
- Graduate College, Medical School of Nantong University, Nantong, China.
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12
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The direct interaction of NME3 with Tip60 in DNA repair. Biochem J 2016; 473:1237-45. [DOI: 10.1042/bcj20160122] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 03/04/2016] [Indexed: 11/17/2022]
Abstract
Cellular supply of dNTPs via RNR (ribonucleotide reductase) is crucial for DNA replication and repair. It has been shown that DNA-damage-site-specific recruitment of RNR is critical for DNA repair efficiency in quiescent cells. The catalytic function of RNR produces dNDPs. The subsequent step of dNTP formation requires the function of NDP kinase. There are ten isoforms of NDP kinase in human cells. In the present study, we identified NME3 as one specific NDP kinase that interacts directly with Tip60, a histone acetyltransferase, to form a complex with RNR. Our data reveal that NME3 recruitment to DNA damage sites depends on this interaction. Disruption of interaction of NME3 with Tip60 suppressed DNA repair in serum-deprived cells. Thus Tip60 interacts with RNR and NME3 to provide site-specific synthesis of dNTP for facilitating DNA repair in serum-deprived cells which contain low levels of dNTPs.
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13
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Micale L, Fusco C, Fontana A, Barbano R, Augello B, De Nittis P, Copetti M, Pellico MT, Mandriani B, Cocciadiferro D, Parrella P, Fazio VM, Dimitri LMC, D'Angelo V, Novielli C, Larizza L, Daga A, Merla G. TRIM8 downregulation in glioma affects cell proliferation and it is associated with patients survival. BMC Cancer 2015; 15:470. [PMID: 26077989 PMCID: PMC4468980 DOI: 10.1186/s12885-015-1449-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 05/19/2015] [Indexed: 12/03/2022] Open
Abstract
Background Human gliomas are a heterogeneous group of primary malignant brain tumors whose molecular pathogenesis is not yet solved. In this regard, a major research effort has been directed at identifying novel specific glioma-associated genes. Here, we investigated the effect of TRIM8 gene in glioma. Methods TRIM8 transcriptional level was profiled in our own glioma cases collection by qPCR and confirmed in the independent TCGA glioma cohort. The association between TRIM8 expression and Overall Survival and Progression-free Survival in TCGA cohort was determined by using uni-multivariable Cox regression analysis. The effect of TRIM8 on patient glioma cell proliferation was evaluated by performing MTT and clonogenic assays. The mechanisms causing the reduction of TRIM8 expression were explored by using qPCR and in vitro assays. Results We showed that TRIM8 expression correlates with unfavorable clinical outcome in glioma patients. We found that a restored TRIM8 expression induced a significant reduction of clonogenic potential in U87MG and patient’s glioblastoma cells. Finally we provide experimental evidences showing that miR-17 directly targets the 3′ UTR of TRIM8 and post-transcriptionally represses the expression of TRIM8. Conclusions Our study provides evidences that TRIM8 may participate in the carcinogenesis and progression of glioma and that the transcriptional repression of TRIM8 might have potential value for predicting poor prognosis in glioma patients. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1449-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lucia Micale
- Medical Genetics Unit, IRCCS Casa Sollievo della Sofferenza, Poliambulatorio Giovanni Paolo II, I-71013, San Giovanni Rotondo (FG), Italy.
| | - Carmela Fusco
- Medical Genetics Unit, IRCCS Casa Sollievo della Sofferenza, Poliambulatorio Giovanni Paolo II, I-71013, San Giovanni Rotondo (FG), Italy.
| | - Andrea Fontana
- Biostatistics Unit, IRCCS Casa Sollievo della Sofferenza, Poliambulatorio Giovanni Paolo II, I-71013, San Giovanni Rotondo (FG), Italy.
| | - Raffaela Barbano
- Laboratory of Oncology, IRCCS Casa Sollievo della Sofferenza, I-71013, San Giovanni Rotondo (FG), Italy.
| | - Bartolomeo Augello
- Medical Genetics Unit, IRCCS Casa Sollievo della Sofferenza, Poliambulatorio Giovanni Paolo II, I-71013, San Giovanni Rotondo (FG), Italy.
| | - Pasquelena De Nittis
- Medical Genetics Unit, IRCCS Casa Sollievo della Sofferenza, Poliambulatorio Giovanni Paolo II, I-71013, San Giovanni Rotondo (FG), Italy.
| | - Massimiliano Copetti
- Biostatistics Unit, IRCCS Casa Sollievo della Sofferenza, Poliambulatorio Giovanni Paolo II, I-71013, San Giovanni Rotondo (FG), Italy.
| | - Maria Teresa Pellico
- Medical Genetics Unit, IRCCS Casa Sollievo della Sofferenza, Poliambulatorio Giovanni Paolo II, I-71013, San Giovanni Rotondo (FG), Italy.
| | - Barbara Mandriani
- Medical Genetics Unit, IRCCS Casa Sollievo della Sofferenza, Poliambulatorio Giovanni Paolo II, I-71013, San Giovanni Rotondo (FG), Italy.
| | - Dario Cocciadiferro
- Medical Genetics Unit, IRCCS Casa Sollievo della Sofferenza, Poliambulatorio Giovanni Paolo II, I-71013, San Giovanni Rotondo (FG), Italy. .,Ph.D program in Experimental and Regenerative Medicine, University of Foggia, Foggia, Italy.
| | - Paola Parrella
- Laboratory of Oncology, IRCCS Casa Sollievo della Sofferenza, I-71013, San Giovanni Rotondo (FG), Italy.
| | - Vito Michele Fazio
- Laboratory of Oncology, IRCCS Casa Sollievo della Sofferenza, I-71013, San Giovanni Rotondo (FG), Italy.
| | | | - Vincenzo D'Angelo
- Neurosurgery Unit, IRCCS Casa Sollievo Della Sofferenza, San Giovanni Rotondo (FG), Italy.
| | - Chiara Novielli
- Medical Genetics, Department of Health Sciences, Università degli Studi di Milano, Milan, Italy.
| | - Lidia Larizza
- Medical Genetics, Department of Health Sciences, Università degli Studi di Milano, Milan, Italy. .,Laboratory of Medical Cytogenetics and Molecular Genetics, Istituto Auxologico Italiano, Milan, Italy.
| | - Antonio Daga
- Gene Transfer Lab; IRCSS Azienda Ospedaliera Universitaria San Martino-IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy.
| | - Giuseppe Merla
- Medical Genetics Unit, IRCCS Casa Sollievo della Sofferenza, Poliambulatorio Giovanni Paolo II, I-71013, San Giovanni Rotondo (FG), Italy.
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Banerjee S, Jha HC, Robertson ES. Regulation of the metastasis suppressor Nm23-H1 by tumor viruses. Naunyn Schmiedebergs Arch Pharmacol 2014; 388:207-24. [PMID: 25199839 DOI: 10.1007/s00210-014-1043-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 08/21/2014] [Indexed: 12/16/2022]
Abstract
Metastasis is the most common cause of cancer mortality. To increase the survival of patients, it is necessary to develop more effective methods for treating as well as preventing metastatic diseases. Recent advancement of knowledge in cancer metastasis provides the basis for development of targeted molecular therapeutics aimed at the tumor cell or its interaction with the host microenvironment. Metastasis suppressor genes (MSGs) are promising targets for inhibition of the metastasis process. During the past decade, functional significance of these genes, their regulatory pathways, and related downstream effector molecules have become a major focus of cancer research. Nm23-H1, first in the family of Nm23 human homologues, is a well-characterized, anti-metastatic factor linked with a large number of human malignancies. Mounting evidence to date suggests an important role for Nm23-H1 in reducing virus-induced tumor cell motility and migration. A detailed understanding of the molecular association between oncogenic viral antigens with Nm23-H1 may reveal the underlying mechanisms for tumor virus-associated malignancies. In this review, we will focus on the recent advances to our understanding of the molecular basis of oncogenic virus-induced progression of tumor metastasis by deregulation of Nm23-H1.
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Affiliation(s)
- Shuvomoy Banerjee
- Department of Microbiology and Tumor Virology Program, Abramson Comprehensive Cancer Center, Perelman School of Medicine at the University of Pennsylvania, 201E Johnson Pavilion, 3610 Hamilton Walk, Philadelphia, PA, 19104, USA
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Mäkitie AA, Monni O. Molecular profiling of laryngeal cancer. Expert Rev Anticancer Ther 2014; 9:1251-60. [DOI: 10.1586/era.09.102] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Identification and validation of a multigene predictor of recurrence in primary laryngeal cancer. PLoS One 2013; 8:e70429. [PMID: 23950933 PMCID: PMC3739775 DOI: 10.1371/journal.pone.0070429] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 06/18/2013] [Indexed: 11/30/2022] Open
Abstract
Purpose Local recurrence is the major manifestation of treatment failure in patients with operable laryngeal carcinoma. Established clinicopathological factors cannot sufficiently predict patients that are likely to recur after treatment. Additional tools are therefore required to accurately identify patients at high risk for recurrence. This study attempts to identify and independently validate gene expression models, prognostic of disease-free survival (DFS) in operable laryngeal cancer. Materials and Methods Using Affymetrix U133A Genechips, we profiled fresh-frozen tumor tissues from 66 patients with laryngeal cancer treated locally with surgery. We applied Cox regression proportional hazards modeling to identify multigene predictors of recurrence. Gene models were then validated in two independent cohorts of 54 and 187 patients (fresh-frozen and formalin-fixed tissue validation sets, respectively). Results We focused on genes univariately associated with DFS (p<0.01) in the training set. Among several models comprising different numbers of genes, a 30-probe set model demonstrated optimal performance in both the training (log-rank, p<0.001) and 1st validation (p = 0.010) sets. Specifically, in the 1st validation set, median DFS as predicted by the 30-probe set model, was 34 and 80 months for high- and low-risk patients, respectively. Hazard ratio (HR) for recurrence in the high-risk group was 3.87 (95% CI 1.28–11.73, Wald's p = 0.017). Testing the expression of selected genes from the above model in the 2nd validation set, with qPCR, revealed significant associations of single markers, such as ACE2, FLOT1 and PRKD1, with patient DFS. High PRKD1 remained an unfavorable prognostic marker upon multivariate analysis (HR = 2.00, 95% CI 1.28–3.14, p = 0.002) along with positive nodal status. Conclusions We have established and validated gene models that can successfully stratify patients with laryngeal cancer, based on their risk for recurrence. It seems worthy to prospectively validate PRKD1 expression as a laryngeal cancer prognostic marker, for routine clinical applications.
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Prabhu VV, Siddikuzzaman, Grace VMB, Guruvayoorappan C. Targeting tumor metastasis by regulating Nm23 gene expression. Asian Pac J Cancer Prev 2013; 13:3539-48. [PMID: 23098432 DOI: 10.7314/apjcp.2012.13.8.3539] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The Nm23 gene is a metastatic suppressor identified in a melanoma cell line and expressed in different tumors where their levels of expression are associated with reduced or increased metastatic potential. Nm23 is one of the over 20 metastasis suppressor genes (MSGs) confirmed in vivo. It is highly conserved from yeast to human, implying a critical developmental function. Tumors with alteration of the p53 gene and reduced expression of the Nm23 gene are more prone to metastasis. Nm23-H1 has 3'-5' exonuclease activity. This review focuses on the role of Nm23 in cancer progression and also a potential novel target for cancer therapy.
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Affiliation(s)
- V Vinod Prabhu
- Department of Biotechnology, Karunya University, Karunya Nagar, Coimbatore, Tamil Nadu, India
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18
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Fountzilas E, Markou K, Vlachtsis K, Nikolaou A, Arapantoni-Dadioti P, Ntoula E, Tassopoulos G, Bobos M, Konstantinopoulos P, Fountzilas G, Spentzos D. Identification and validation of gene expression models that predict clinical outcome in patients with early-stage laryngeal cancer. Ann Oncol 2012; 23:2146-2153. [PMID: 22219018 PMCID: PMC3493135 DOI: 10.1093/annonc/mdr576] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2011] [Revised: 10/16/2011] [Accepted: 11/07/2011] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Despite improvement in therapeutic techniques, patients with early-stage laryngeal cancer still recur after treatment. Gene expression prognostic models could suggest which of these patients would be more appropriate for testing adjuvant strategies. MATERIALS AND METHODS Expression profiling using whole-genome DASL arrays was carried out on 56 formalin-fixed paraffin-embedded tumor samples of patients with early-stage laryngeal cancer. We split the samples into a training and a validation set. Using the supervised principal components survival analysis in the first cohort, we identified gene expression profiles that predict the risk of recurrence. These profiles were then validated in an independent cohort. RESULTS Gene models comprising different number of genes identified a subgroup of patients who were at high risk of recurrence. Of these, the best prognostic model distinguished between a high- and a low-risk group (log-rank P<0.005). The prognostic value of this model was reproduced in the validation cohort (median disease-free survival: 38 versus 161 months, log-rank P=0.018), hazard ratio=5.19 (95% confidence interval 1.14-23.57, P<0.05). CONCLUSIONS We have identified gene expression prognostic models that can refine the estimation of a patient's risk of recurrence. These findings, if further validated, should aid in patient stratification for testing adjuvant treatment strategies.
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Affiliation(s)
- E Fountzilas
- Division of Hematology/Oncology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - K Markou
- Department of Otorhinolaryngology, "AHEPA" Hospital, Aristotle University of Thessaloniki School of Medicine, Thessaloniki
| | - K Vlachtsis
- Department of Otorhinolaryngology, "AHEPA" Hospital, Aristotle University of Thessaloniki School of Medicine, Thessaloniki
| | - A Nikolaou
- Department of Otorhinolaryngology, "AHEPA" Hospital, Aristotle University of Thessaloniki School of Medicine, Thessaloniki
| | | | | | - G Tassopoulos
- Department of Otorhinolaryngology, "Metaxa" Cancer Hospital, Piraeus
| | - M Bobos
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research, Thessaloniki
| | - P Konstantinopoulos
- Division of Hematology/Oncology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - G Fountzilas
- Department of Medical Oncology, "Papageorgiou" Hospital, Aristotle University of Thessaloniki School of Medicine, Thessaloniki, Greece
| | - D Spentzos
- Division of Hematology/Oncology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA.
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Bauer H, Schindler S, Charron Y, Willert J, Kusecek B, Herrmann BG. The nucleoside diphosphate kinase gene Nme3 acts as quantitative trait locus promoting non-Mendelian inheritance. PLoS Genet 2012; 8:e1002567. [PMID: 22438820 PMCID: PMC3305403 DOI: 10.1371/journal.pgen.1002567] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Accepted: 01/16/2012] [Indexed: 11/18/2022] Open
Abstract
The t-haplotype, a variant form of the t-complex region on mouse chromosome 17, acts as selfish genetic element and is transmitted at high frequencies (> 95%) from heterozygous (t/+) males to their offspring. This phenotype is termed transmission ratio distortion (TRD) and is caused by the interaction of the t-complex responder (Tcr) with several quantitative trait loci (QTL), the t-complex distorters (Tcd1 to Tcd4), all located within the t-haplotype region. Current data suggest that the distorters collectively impair motility of all sperm derived from t/+ males; t-sperm is rescued by the responder, whereas (+)-sperm remains partially dysfunctional. Recently we have identified two distorters as regulators of RHO small G proteins. Here we show that the nucleoside diphosphate kinase gene Nme3 acts as a QTL on TRD. Reduction of the Nme3 dosage by gene targeting of the wild-type allele enhanced the transmission rate of the t-haplotype and phenocopied distorter function. Genetic and biochemical analysis showed that the t-allele of Nme3 harbors a mutation (P89S) that compromises enzymatic activity of the protein and genetically acts as a hypomorph. Transgenic overexpression of the Nme3 t-allele reduced t-haplotype transmission, proving it to be a distorter. We propose that the NME3 protein interacts with RHO signaling cascades to impair sperm motility through hyperactivation of SMOK, the wild-type form of the responder. This deleterious effect of the distorters is counter-balanced by the responder, SMOK(Tcr), a dominant-negative protein kinase exclusively expressed in t-sperm, thus permitting selfish behaviour and preferential transmission of the t-haplotype. In addition, the previously reported association of NME family members with RHO signaling in somatic cell motility and metastasis, in conjunction with our data involving RHO signaling in sperm motility, suggests a functional conservation between mechanisms for motility control in somatic cells and spermatozoa.
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Affiliation(s)
- Hermann Bauer
- Department of Developmental Genetics, Max Planck Institute for Molecular Genetics, Berlin, Germany.
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Abstract
Some members of the tripartite motif (TRIM/RBCC) protein family are thought to be important regulators of carcinogenesis. This is not surprising as the TRIM proteins are involved in several biological processes, such as cell growth, development and cellular differentiation and alteration of these proteins can affect transcriptional regulation, cell proliferation and apoptosis. In particular, four TRIM family genes are frequently translocated to other genes, generating fusion proteins implicated in cancer initiation and progression. Among these the most famous is the promyelocytic leukaemia gene PML, which encodes the protein TRIM19. PML is involved in the t(15;17) translocation that specifically occurs in Acute Promyelocytic Leukaemia (APL), resulting in a PML-retinoic acid receptor-alpha (PML-RARalpha) fusion protein. Other members of the TRIM family are linked to cancer development without being involved in chromosomal re-arrangements, possibly through ubiquitination or loss of tumour suppression functions. This chapter discusses the biological functions of TRIM proteins in cancer.
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Abstract
Emerging clinical evidence shows that the deregulation of ubiquitin-mediated degradation of oncogene products or tumour suppressors is likely to be involved in the aetiology of carcinomas and leukaemias. Recent studies have indicated that some members of the tripartite motif (TRIM) proteins (one of the subfamilies of the RING type E3 ubiquitin ligases) function as important regulators for carcinogenesis. This Review focuses on TRIM proteins that are involved in tumour development and progression.
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Affiliation(s)
- Shigetsugu Hatakeyama
- Department of Biochemistry, Institute for Animal Experimentation, and Central Institute of Isotope Science, Hokkaido University Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido 060-8638, Japan.
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Ha PK, Chang SS, Glazer CA, Califano JA, Sidransky D. Molecular techniques and genetic alterations in head and neck cancer. Oral Oncol 2008; 45:335-9. [PMID: 18674960 DOI: 10.1016/j.oraloncology.2008.05.015] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
It is well known that cellular DNA alterations can lead to the formation of cancer, and there has been much discovery in the pathways involved in the development of head and neck squamous cell carcinoma (HNSCC). With novel genome-wide molecular assays, our ability to detect these abnormalities has increased. We now have a better understanding of the molecular complexity of HNSCC, but there is still much research to be done. In this review, we discuss the well described genetic alterations and touch on the newer findings, as well as some of the future directions of head and neck cancer research.
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Affiliation(s)
- Patrick K Ha
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Medical Institutions, 1550 E Orleans Street, CRB II Rm 5M06, Baltimore, MD 21231, USA.
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