1
|
Zhang SP, Tong M, Li SD, Zhang B, Zhang W, Wang R, Dong ZY, Huang YF. The Role of Microvascular Variations in the Process of Intervertebral Disk Degeneration and Its Regulatory Mechanisms: A Literature Review. Orthop Surg 2024. [PMID: 39205477 DOI: 10.1111/os.14209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 08/01/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024] Open
Abstract
Microvascular changes are considered key factors in the process of intervertebral disk degeneration (IDD). Microvascular invasion and growth into the nucleus pulposus (NP) and cartilaginous endplates are unfavorable factors that trigger IDD. In contrast, the rich distribution of microvessels in the bony endplates and outer layers of the annulus fibrosus is an important safeguard for the nutrient supply and metabolism of the intervertebral disk (IVD). In particular, the adequate supply of microvessels in the bony endplates is the main source of the nutritional supply for the entire IVD. Microvessels can affect the progression of IDD through a variety of pathways. Many studies have explored the effects of microvessel alterations in the NP, annulus fibrosus, cartilaginous endplates, and bony endplates on the local microenvironment through inflammation, apoptosis, and senescence. Studies also elucidated the important roles of microvessel alterations in the process of IDD, as well as conducted in-depth explorations of cytokines and biologics that can inhibit or promote the ingrowth of microvessels. Therefore, the present manuscript reviews the published literature on the effects of microvascular changes on IVD to summarize the roles of microvessels in IVD and elaborate on the mechanisms of action that promote or inhibit de novo microvessel formation in IVD.
Collapse
Affiliation(s)
- Si-Ping Zhang
- Department of Spinal Surgery, Traditional Chinese Medicine Hospital affiliated to Xinjiang Medical University, Urumqi, China
- Xinjiang Uygur Autonomous Region Academy of Traditional Chinese Medicine, Urumqi, China
| | - Min Tong
- Department of Spinal Surgery, Traditional Chinese Medicine Hospital affiliated to Xinjiang Medical University, Urumqi, China
- Xinjiang Uygur Autonomous Region Academy of Traditional Chinese Medicine, Urumqi, China
| | - Shi-Da Li
- Department of Spinal Surgery, Traditional Chinese Medicine Hospital affiliated to Xinjiang Medical University, Urumqi, China
- Xinjiang Uygur Autonomous Region Academy of Traditional Chinese Medicine, Urumqi, China
| | - Bin Zhang
- Department of Spinal Surgery, Traditional Chinese Medicine Hospital affiliated to Xinjiang Medical University, Urumqi, China
- Xinjiang Uygur Autonomous Region Academy of Traditional Chinese Medicine, Urumqi, China
| | - Wenhao Zhang
- Department of Spinal Surgery, Traditional Chinese Medicine Hospital affiliated to Xinjiang Medical University, Urumqi, China
- Xinjiang Uygur Autonomous Region Academy of Traditional Chinese Medicine, Urumqi, China
| | - Rong Wang
- Department of Spinal Surgery, Traditional Chinese Medicine Hospital affiliated to Xinjiang Medical University, Urumqi, China
- Xinjiang Uygur Autonomous Region Academy of Traditional Chinese Medicine, Urumqi, China
| | - Zhen-Yu Dong
- Department of Spinal Surgery, Traditional Chinese Medicine Hospital affiliated to Xinjiang Medical University, Urumqi, China
- Xinjiang Uygur Autonomous Region Academy of Traditional Chinese Medicine, Urumqi, China
| | - Yi-Fei Huang
- Department of Spinal Surgery, Traditional Chinese Medicine Hospital affiliated to Xinjiang Medical University, Urumqi, China
- Xinjiang Uygur Autonomous Region Academy of Traditional Chinese Medicine, Urumqi, China
| |
Collapse
|
2
|
Gazzini S, Cerullo R, Soloperto D. VEGF as a Key Actor in Recurrent Respiratory Papillomatosis: A Narrative Review. Curr Issues Mol Biol 2024; 46:6757-6768. [PMID: 39057045 PMCID: PMC11275356 DOI: 10.3390/cimb46070403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/20/2024] [Accepted: 06/25/2024] [Indexed: 07/28/2024] Open
Abstract
Recurrent respiratory papillomatosis (RRP) is a benign disease of the upper aerodigestive tract caused by human papillomavirus (HPV) types 6 and 11. The clinical course is unpredictable and some patients, especially younger children, experience a high rate of recurrence with a significant impact on their quality of life. The molecular mechanisms of HPV infection in keratinocytes have been extensively studied throughout the years, with particular regard to its role in causing malignant tumors, like cervical cancer and head and neck carcinomas. A minor but not negligible amount of the literature has investigated the molecular landscape of RRP patients, and some papers have studied the role of angiogenesis (the growth of blood vessels from pre-existing vasculature) in this disease. A central role in this process is played by vascular endothelial growth factor (VEGF), which activates different signaling cascades on multiple levels. The increased knowledge has led to the introduction of the VEGF inhibitor bevacizumab in recent years as an adjuvant treatment in some patients, with good results. This review summarizes the current evidence about the role of VEGF in the pathophysiology of RRP, the molecular pathways activated by binding with its receptors, and the current and future roles of anti-angiogenic treatment.
Collapse
Affiliation(s)
- Sandra Gazzini
- Division of Otolaryngology, Head and Neck Surgery Department, University Hospital of Verona, 37134 Verona, Italy
| | - Raffaele Cerullo
- Division of Otolaryngology, Hospital of Treviso, 31100 Treviso, Italy
| | - Davide Soloperto
- Department of Otorhinolaryngology, University Hospital of Modena, 41125 Modena, Italy
| |
Collapse
|
3
|
Pirvu LC, Neagu G, Albulescu A, Stefaniu A, Pintilie L. Potential Benefits of Dietary Plant Compounds on Normal and Tumor Brain Cells in Humans: In Silico and In Vitro Approaches. Int J Mol Sci 2023; 24:ijms24087404. [PMID: 37108565 PMCID: PMC10139435 DOI: 10.3390/ijms24087404] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/14/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Neuroblastoma can be accessed with compounds of larger sizes and wider polarities, which do not usually cross the blood-brain barrier. Clinical data indicate cases of spontaneous regression of neuroblastoma, suggesting a reversible point in the course of cell brain tumorigenesis. Dual specificity tyrosine-phosphorylation-regulated kinase2 (DYRK2) is a major molecular target in tumorigenesis, while curcumin was revealed to be a strong inhibitor of DYRK2 (PBD ID: 5ZTN). Methods: in silico studies by CLC Drug Discovery Workbench (CLC) and Molegro Virtual Docker (MVD) Software on 20 vegetal compounds from the human diet tested on 5ZTN against the native ligand curcumin, in comparison with anemonin. In vitro studies were conducted on two ethanolic extracts from Anemone nemorosa tested on normal and tumor human brain cell lines NHA and U87, compared with four phenolic acids (caffeic, ferulic, gentisic, and para-aminobenzoic/PABA). Conclusions: in silico studies revealed five dietary compounds (verbascoside, lariciresinol, pinoresinol, medioresinol, matairesinol) acting as stronger inhibitors of 5ZTN compared to the native ligand curcumin. In vitro studies indicated that caffeic acid has certain anti-proliferative effects on U87 and small benefits on NHA viability. A. nemorosa extracts indicated potential benefits on NHA viability, and likely dangerous effects on U87.
Collapse
Affiliation(s)
- Lucia Camelia Pirvu
- Department of Pharmaceutical Biotechnologies, National Institute of Chemical Pharmaceutical Research and Development-ICCF, 112 Vitan Av., 031299 Bucharest, Romania
| | - Georgeta Neagu
- Department of Pharmacology, National Institute of Chemical Pharmaceutical Research and Development-ICCF, 112 Vitan Av., 031299 Bucharest, Romania
| | - Adrian Albulescu
- Department of Pharmacology, National Institute of Chemical Pharmaceutical Research and Development-ICCF, 112 Vitan Av., 031299 Bucharest, Romania
- Stefan S. Nicolau Institute of Virology, 285 Mihai Bravu Av., 030304 Bucharest, Romania
| | - Amalia Stefaniu
- Department of Pharmaceutical Biotechnologies, National Institute of Chemical Pharmaceutical Research and Development-ICCF, 112 Vitan Av., 031299 Bucharest, Romania
| | - Lucia Pintilie
- Department of Synthesis of Bioactive Substances and Pharmaceutical Technologies, National Institute of Chemical Pharmaceutical Research and Development-ICCF, 112 Vitan Av., 031299 Bucharest, Romania
| |
Collapse
|
4
|
Chen MH, Gu YY, Zhang AL, Sze DMY, Mo SL, May BH. Biological effects and mechanisms of matrine and other constituents of Sophora flavescens in colorectal cancer. Pharmacol Res 2021; 171:105778. [PMID: 34298110 DOI: 10.1016/j.phrs.2021.105778] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/01/2021] [Accepted: 07/18/2021] [Indexed: 01/30/2023]
Abstract
The plant Sophora flavescens Ait. has been used in the clinical management of colorectal cancer (CRC). Its constituent compounds, notably the alkaloids matrine, oxymatrine, and sophoridine, have received considerable research attention in experimental models of CRC in vivo and in vitro. This review found that extracts of S. flavescens and/or its constituent compounds have been reported to inhibit CRC cell proliferation by inducing cell-cycle arrest at the G1 phase, inducing apoptosis via the intrinsic pathway, interfering in cancer metabolism, inhibiting metastasis and angiogenesis, regulating senescence and telomeres, regulating the tumour microenvironment and down-regulating cancer-related inflammation. In addition, matrine and oxymatrine reversed multi-drug resistance and enhanced the effects of chemotherapies. These anti-cancer effects were associated with regulation of several cellular signalling pathways including: MAPK/ERK, PI3K/AKT/mTOR, p38MAPK, NF-κB, Hippo/LATS2, TGF-β/Smad, JAK/STAT3, RhoA/ROC, and Wnt/ β-catenin pathways. These multiple actions in CRC suggest the alkaloids of S. flavescens may be therapeutic candidates for CRC management. Nevertheless, there remains considerable scope for future research into its flavonoid constituents, the effects of combinations of compounds, and the interaction between these compounds and anti-cancer drugs. In addition, more research is needed to investigate likely drug ligand-receptor interactions for each of the bioactive compounds.
Collapse
Affiliation(s)
- Meng-Hua Chen
- School of Health and Biomedical Science, RMIT University, P.O. Box 71, Bundoora, Melbourne, VIC 3083, Australia.
| | - Yue-Yu Gu
- The Second Clinical College, Guangzhou University of Chinese Medicine and Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou 510080, China.
| | - Anthony Lin Zhang
- School of Health and Biomedical Science, RMIT University, P.O. Box 71, Bundoora, Melbourne, VIC 3083, Australia.
| | - Daniel Man-Yuen Sze
- School of Health and Biomedical Science, RMIT University, P.O. Box 71, Bundoora, Melbourne, VIC 3083, Australia.
| | - Sui-Lin Mo
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
| | - Brian H May
- School of Health and Biomedical Science, RMIT University, P.O. Box 71, Bundoora, Melbourne, VIC 3083, Australia.
| |
Collapse
|
5
|
Advances in dietary polysaccharides as anticancer agents: Structure-activity relationship. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.03.008] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
6
|
HOTNOG CAMELIAMIA, MIHAILA MIRELA, PUIU LILIANA, BOTEZATU ANCA, ROMAN VIVIANA, POPESCU IULIADANA, BOSTAN MARINELA, BRASOVEANU LORELEIIRINA. Modulation of the interplay between p53, ICAM-1 and VEGF in drug-treated LoVo colon cancer cells. ROMANIAN BIOTECHNOLOGICAL LETTERS 2019. [DOI: 10.25083/rbl/24.2/261.270] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
7
|
Braicu O, Pileczki V, Braicu C, Achimas-Cadariu P, Irimie A, Berindan-Neagoe I. p53 siRNA - a therapeutic tool with significant implication in the modulation of apoptosis and angiogenic pathways. ACTA ACUST UNITED AC 2015; 88:333-7. [PMID: 26609266 PMCID: PMC4632892 DOI: 10.15386/cjmed-434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 05/04/2015] [Accepted: 05/09/2015] [Indexed: 12/28/2022]
Abstract
Background and aims siRNAs represent an encouraging novel alternative in cancer therapy as a result of targeting the mutated tumour suppressor genes or activated oncogenes. Targeting oncogenic signals, as the mutated p53 gene that gains oncogenic role, we observed inhibition of migration, a downregulation of specific genes involved in apoptosis but also in angiogenesis, connected with a reduction in invasion rate in the case of p53siRNA therapy. Methods The study was designed to assess the role of p53 by using RNAi (RNA interference) in Hela in vitro cell culture model. Therefore cell migration rate was assessed by using xCELLigence Systems, gene expression for a panel of genes involved in apoptosis and angiogenesis, and validation of gene expression data at protein level. Results On the selected in vitro model p53 siRNA therapy was correlated with the reduction of cell migration. The downregulation of p53, PTEN, TNFα, NFkB, BCL-2, ICAM-2, VEGF, and FGFb was evidenced as response to p53 inhibition. Conclusion RNAi may be a valuable technology in order to restore the normal cellular phenotype. The results in the current research may also have an important significance outside the context of cervical cancer, by using specific inhibitors for p53 for increasing the therapeutic response in a wide range of tumoral pathology.
Collapse
Affiliation(s)
- Ovidiu Braicu
- Department of Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania ; Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania ; Department of Surgical Oncology, The Oncological Institute Prof. Dr. Ion Chiricuta, Cluj-Napoca, Romania
| | - Valentina Pileczki
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Patriciu Achimas-Cadariu
- Department of Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania ; Department of Surgical Oncology, The Oncological Institute Prof. Dr. Ion Chiricuta, Cluj-Napoca, Romania
| | - Alexandru Irimie
- Department of Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania ; Department of Surgical Oncology, The Oncological Institute Prof. Dr. Ion Chiricuta, Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania ; Department of Functional Genomics and Experimental Pathology, The Oncological Institute Prof. Dr. Ion Chiricuta, Cluj-Napoca, Romania
| |
Collapse
|
8
|
Amelio I, Antonov AA, Catani MV, Massoud R, Bernassola F, Knight RA, Melino G, Rufini A. TAp73 promotes anabolism. Oncotarget 2015; 5:12820-934. [PMID: 25514460 PMCID: PMC4350352 DOI: 10.18632/oncotarget.2667] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 10/28/2014] [Indexed: 12/18/2022] Open
Abstract
Metabolic adaptation has emerged as a hallmark of cancer and a promising therapeutic target, as rapidly proliferating cancer cells adapt their metabolism increasing nutrient uptake and reorganizing metabolic fluxes to support biosynthesis. The transcription factor p73 belongs to the p53-family and regulates tumorigenesis via its two N-terminal isoforms, with (TAp73) or without (ΔNp73) a transactivation domain. TAp73 acts as tumor suppressor, at least partially through induction of cell cycle arrest and apoptosis and through regulation of genomic stability. Here, we sought to investigate whether TAp73 also affects metabolic profiling of cancer cells. Using high throughput metabolomics, we unveil a thorough and unexpected role for TAp73 in promoting Warburg effect and cellular metabolism. TAp73-expressing cells show increased rate of glycolysis, higher amino acid uptake and increased levels and biosynthesis of acetyl-CoA. Moreover, we report an extensive TAp73-mediated upregulation of several anabolic pathways including polyamine and synthesis of membrane phospholipids. TAp73 expression also increases cellular methyl-donor S-adenosylmethionine (SAM), possibly influencing methylation and epigenetics, and promotes arginine metabolism, suggestive of a role in extracellular matrix (ECM) modeling. In summary, our data indicate that TAp73 regulates multiple metabolic pathways that impinge on numerous cellular functions, but that, overall, converge to sustain cell growth and proliferation.
Collapse
Affiliation(s)
- Ivano Amelio
- Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK
| | - Alexey A Antonov
- Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK
| | - Maria Valeria Catani
- Biochemistry Laboratory, IDI-IRCCS, University of Rome Tor Vergata, Rome 00133, Italy
| | - Renato Massoud
- Biochemistry Laboratory, IDI-IRCCS, University of Rome Tor Vergata, Rome 00133, Italy
| | - Francesca Bernassola
- Biochemistry Laboratory, IDI-IRCCS, University of Rome Tor Vergata, Rome 00133, Italy
| | - Richard A Knight
- Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK
| | - Gerry Melino
- Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK. Biochemistry Laboratory, IDI-IRCCS, University of Rome Tor Vergata, Rome 00133, Italy. Molecular Pharmacology Laboratory, Technological University, St-Petersburg, Russia
| | - Alessandro Rufini
- Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK. Department of Cancer Studies, Cancer Research UK, Leicester Centre, University of Leicester, Leicester, LE1 7RH, UK
| |
Collapse
|
9
|
Antonov A, Agostini M, Morello M, Minieri M, Melino G, Amelio I. Bioinformatics analysis of the serine and glycine pathway in cancer cells. Oncotarget 2015; 5:11004-13. [PMID: 25436979 PMCID: PMC4294344 DOI: 10.18632/oncotarget.2668] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 10/28/2014] [Indexed: 12/22/2022] Open
Abstract
Serine and glycine are amino acids that provide the essential precursors for the synthesis of proteins, nucleic acids and lipids. Employing 3 subsequent enzymes, phosphoglycerate dehydrogenase (PHGDH), phosphoserine phosphatase (PSPH), phosphoserine aminotransferase 1 (PSAT1), 3-phosphoglycerate from glycolysis can be converted in serine, which in turn can by converted in glycine by serine methyl transferase (SHMT). Besides proving precursors for macromolecules, serine/glycine biosynthesis is also required for the maintenance of cellular redox state. Therefore, this metabolic pathway has a pivotal role in proliferating cells, including cancer cells. In the last few years an emerging literature provides genetic and functional evidences that hyperactivation of serine/glycine biosynthetic pathway drives tumorigenesis. Here, we extend these observations performing a bioinformatics analysis using public cancer datasets. Our analysis highlighted the relevance of PHGDH and SHMT2 expression as prognostic factor for breast cancer, revealing a substantial ability of these enzymes to predict patient survival outcome. However analyzing patient datasets of lung cancer our analysis reveled that some other enzymes of the pathways, rather than PHGDH, might be associated to prognosis. Although these observations require further investigations they might suggest a selective requirement of some enzymes in specific cancer types, recommending more cautions in the development of novel translational opportunities and biomarker identification of human cancers.
Collapse
Affiliation(s)
- Alexey Antonov
- Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK
| | - Massimiliano Agostini
- Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK. Department of Experimental Medicine and Surgery, University of Rome "Tor Vergata", Rome 00133, Italy
| | - Maria Morello
- Department of Experimental Medicine and Surgery, University of Rome "Tor Vergata", Rome 00133, Italy
| | - Marilena Minieri
- Department of Experimental Medicine and Surgery, University of Rome "Tor Vergata", Rome 00133, Italy
| | - Gerry Melino
- Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK. Department of Experimental Medicine and Surgery, University of Rome "Tor Vergata", Rome 00133, Italy. Biochemistry Laboratory IDI-IRCC, University of Rome "Tor Vergata", Rome 00133, Italy
| | - Ivano Amelio
- Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK
| |
Collapse
|
10
|
Agostini M, Niklison-Chirou MV, Catani MV, Knight RA, Melino G, Rufini A. TAp73 promotes anti-senescence-anabolism not proliferation. Aging (Albany NY) 2014; 6:921-30. [PMID: 25554796 PMCID: PMC4276786 DOI: 10.18632/aging.100701] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
Abstract
TAp73, a member of the p53 family, has been traditionally considered a tumor suppressor gene, but a recent report has claimed that it can promote cellular proliferation. This assumption is based on biochemical evidence of activation of anabolic metabolism, with enhanced pentose phosphate shunt (PPP) and nucleotide biosynthesis. Here, while we confirm that TAp73 expression enhances anabolism, we also substantiate its role in inhibiting proliferation and promoting cell death. Hence, we would like to propose an alternative interpretation of the accumulating data linking p73 to cellular metabolism: we suggest that TAp73 promotes anabolism to counteract cellular senescence rather than to support proliferation.
Collapse
Affiliation(s)
- Massimiliano Agostini
- Medical Research Council, Toxicology Unit, Leicester LE1 9HN, UK
- Department of Experimental Medicine and Surgery, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Maria Victoria Niklison-Chirou
- Medical Research Council, Toxicology Unit, Leicester LE1 9HN, UK
- Blizard Institute of Cell and Molecular Science, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, UK; current address
| | - Maria Valeria Catani
- Department of Experimental Medicine and Surgery, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | | | - Gerry Melino
- Medical Research Council, Toxicology Unit, Leicester LE1 9HN, UK
- Department of Experimental Medicine and Surgery, University of Rome “Tor Vergata”, 00133 Rome, Italy
- Biochemistry Laboratory IDI-IRCC, c/o Department of Experimental Medicine and Surgery, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Alessandro Rufini
- Medical Research Council, Toxicology Unit, Leicester LE1 9HN, UK
- Department of Experimental Medicine and Surgery, University of Rome “Tor Vergata”, 00133 Rome, Italy
- Department of Cancer Studies and Molecular Medicine, University of Leicester, Leicester UK
| |
Collapse
|
11
|
Elf3 drives β-catenin transactivation and associates with poor prognosis in colorectal cancer. Cell Death Dis 2014; 5:e1263. [PMID: 24874735 PMCID: PMC4047871 DOI: 10.1038/cddis.2014.206] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 03/30/2014] [Accepted: 04/03/2014] [Indexed: 01/14/2023]
Abstract
Aberrant regulation of the Wnt/β-catenin pathway plays important roles in colorectal carcinogenesis, with over 90% of cases of sporadic colon cancer featuring β-catenin accumulation. While ubiquitination-mediated degradation is widely accepted as a major route for β-catenin protein turnover, little is known about the regulation of β-catenin in transcriptional level. Here we show that Elf3, a member of the E-twenty-six family of transcription factors, drives β-catenin transactivation and associates with poor survival of colorectal cancer (CRC) patients. We first found recurrent amplification and upregulation of Elf3 in CRC tissues, and further Gene Set Enrichment Analysis identified significant association between Elf3 expression and activity of WNT/β-catenin pathway. Chromatin immunoprecipitation and electrophoretic mobility shift assay consistently revealed that Elf3 binds to and transactivates β-catenin promoter. Ectopic expression of Elf3 induces accumulation of β-catenin in both nucleus and cytoplasm, causing subsequent upregulation of several effector genes including c-Myc, VEGF, CCND1, MMP-7 and c-Jun. Suppressing Elf3 in CRC cells attenuates β-catenin signaling and decreases cell proliferation, migration and survival. Targeting Elf3 in xenograft tumors suppressed tumor progression in vivo. Taken together, our data identify Elf3 as a pivotal driver for β-catenin signaling in CRC, and highlight potential prognostic and therapeutic significance of Elf3 in CRC.
Collapse
|