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Baxter MA, Spender LC, Cairns D, Walsh S, Oparka R, Porter RJ, Bray S, Skinner G, King S, Turbitt J, Collinson D, Miedzybrodzka ZH, Jellema G, Logan G, Kennedy RD, Turkington RC, McLean MH, Swinson D, Grabsch HI, Lord S, Seymour MJ, Hall PS, Petty RD. An investigation of the clinical impact and therapeutic relevance of a DNA damage immune response (DDIR) signature in patients with advanced gastroesophageal adenocarcinoma. ESMO Open 2024; 9:103450. [PMID: 38744099 DOI: 10.1016/j.esmoop.2024.103450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 04/05/2024] [Accepted: 04/05/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND An improved understanding of which gastroesophageal adenocarcinoma (GOA) patients respond to both chemotherapy and immune checkpoint inhibitors (ICI) is needed. We investigated the predictive role and underlying biology of a 44-gene DNA damage immune response (DDIR) signature in patients with advanced GOA. MATERIALS AND METHODS Transcriptional profiling was carried out on pretreatment tissue from 252 GOA patients treated with platinum-based chemotherapy (three dose levels) within the randomized phase III GO2 trial. Cross-validation was carried out in two independent GOA cohorts with transcriptional profiling, immune cell immunohistochemistry and epidermal growth factor receptor (EGFR) fluorescent in situ hybridization (FISH) (n = 430). RESULTS In the GO2 trial, DDIR-positive tumours had a greater radiological response (51.7% versus 28.5%, P = 0.022) and improved overall survival in a dose-dependent manner (P = 0.028). DDIR positivity was associated with a pretreatment inflamed tumour microenvironment (TME) and increased expression of biomarkers associated with ICI response such as CD274 (programmed death-ligand 1, PD-L1) and a microsatellite instability RNA signature. Consensus pathway analysis identified EGFR as a potential key determinant of the DDIR signature. EGFR amplification was associated with DDIR negativity and an immune cold TME. CONCLUSIONS Our results indicate the importance of the GOA TME in chemotherapy response, its relationship to DNA damage repair and EGFR as a targetable driver of an immune cold TME. Chemotherapy-sensitive inflamed GOAs could benefit from ICI delivered in combination with standard chemotherapy. Combining EGFR inhibitors and ICIs warrants further investigation in patients with EGFR-amplified tumours.
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Affiliation(s)
- M A Baxter
- Division of Molecular and Clinical Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee; Tayside Cancer Centre, Ninewells Hospital and Medical School, NHS Tayside, Dundee.
| | - L C Spender
- Division of Molecular and Clinical Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee
| | - D Cairns
- Leeds Cancer Research UK Clinical Trials Unit, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds
| | - S Walsh
- Department of Pathology, Ninewells Hospital and Medical School, NHS Tayside, Dundee
| | - R Oparka
- Department of Pathology, Ninewells Hospital and Medical School, NHS Tayside, Dundee
| | - R J Porter
- Department of Pathology, CRUK Scotland Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh
| | - S Bray
- Tayside Biorepository, University of Dundee, Dundee
| | - G Skinner
- Tayside Biorepository, University of Dundee, Dundee
| | - S King
- Tayside Biorepository, University of Dundee, Dundee
| | - J Turbitt
- Genetics and Molecular Pathology Laboratory Services, NHS Grampian, Aberdeen
| | - D Collinson
- Genetics and Molecular Pathology Laboratory Services, NHS Grampian, Aberdeen
| | - Z H Miedzybrodzka
- Genetics and Molecular Pathology Laboratory Services, NHS Grampian, Aberdeen; School of Medicine, Medical Sciences, Nutrition and Dentistry, Polwarth Building, University of Aberdeen, Aberdeen
| | - G Jellema
- Almac Diagnostic Services, Craigavon
| | - G Logan
- Almac Diagnostic Services, Craigavon
| | - R D Kennedy
- Almac Diagnostic Services, Craigavon; Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast
| | - R C Turkington
- Almac Diagnostic Services, Craigavon; Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast
| | - M H McLean
- Division of Molecular and Clinical Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee; Tayside Cancer Centre, Ninewells Hospital and Medical School, NHS Tayside, Dundee
| | - D Swinson
- St James's University Hospital, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - H I Grabsch
- Department of Pathology, GROW School for Oncology and Reproduction, Maastricht University Medical Center, Maastricht, The Netherlands; Division of Pathology and Data Analytics, Leeds Institute of Medical Research at St James's University, University of Leeds, Leeds
| | - S Lord
- Department of Oncology, University of Oxford, Oxford
| | - M J Seymour
- Leeds Cancer Research UK Clinical Trials Unit, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds; St James's University Hospital, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - P S Hall
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics & Molecular Medicine, The University of Edinburgh, Western General Hospital, Crewe Road South, Edinburgh, UK
| | - R D Petty
- Division of Molecular and Clinical Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee; Tayside Cancer Centre, Ninewells Hospital and Medical School, NHS Tayside, Dundee.
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Porter RJ, Murray GI, Hapca S, Hay A, Craig SG, Humphries MP, James JA, Salto-Tellez M, Brice DP, Berry SH, McLean MH. Subcellular Epithelial HMGB1 Expression Is Associated with Colorectal Neoplastic Progression, Male Sex, Mismatch Repair Protein Expression, Lymph Node Positivity, and an 'Immune Cold' Phenotype Associated with Poor Survival. Cancers (Basel) 2023; 15:cancers15061865. [PMID: 36980751 PMCID: PMC10047220 DOI: 10.3390/cancers15061865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 03/12/2023] [Accepted: 03/13/2023] [Indexed: 03/30/2023] Open
Abstract
New treatment targets are needed for colorectal cancer (CRC). We define expression of High Mobility Group Box 1 (HMGB1) protein throughout colorectal neoplastic progression and examine the biological consequences of aberrant expression. HMGB1 is a ubiquitously expressed nuclear protein that shuttles to the cytoplasm under cellular stress. HMGB1 impacts cellular responses, acting as a cytokine when secreted. A total of 846 human tissue samples were retrieved; 6242 immunohistochemically stained sections were reviewed. Subcellular epithelial HMGB1 expression was assessed in a CRC Tissue Microarray (n = 650), normal colonic epithelium (n = 75), adenomatous polyps (n = 52), and CRC polyps (CaP, n = 69). Stromal lymphocyte phenotype was assessed in the CRC microarray and a subgroup of CaP. Normal colonic epithelium has strong nuclear and absent cytoplasmic HMGB1. With progression to CRC, there is an emergence of strong cytoplasmic HMGB1 (p < 0.001), pronounced at the leading cancer edge within CaP (p < 0.001), and reduction in nuclear HMGB1 (p < 0.001). In CRC, absent nuclear HMGB1 is associated with mismatch repair proteins (p = 0.001). Stronger cytoplasmic HMGB1 is associated with lymph node positivity (p < 0.001) and male sex (p = 0.009). Stronger nuclear (p = 0.011) and cytoplasmic (p = 0.002) HMGB1 is associated with greater CD4+ T-cell density, stronger nuclear HMGB1 is associated with greater FOXP3+ (p < 0.001) and ICOS+ (p = 0.018) lymphocyte density, and stronger nuclear HMGB1 is associated with reduced CD8+ T-cell density (p = 0.022). HMGB1 does not directly impact survival but is associated with an 'immune cold' tumour microenvironment which is associated with poor survival (p < 0.001). HMGB1 may represent a new treatment target for CRC.
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Affiliation(s)
- Ross J Porter
- Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Graeme I Murray
- Institute of Medical Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Sandra Hapca
- Institute of Medical Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Andrew Hay
- Institute of Medical Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Stephanie G Craig
- Precision Medicine Centre of Excellence, Centre for Cell Research and Cell Biology, Queen's University Belfast, Belfast BT9 7BL, UK
| | - Matthew P Humphries
- Precision Medicine Centre of Excellence, Centre for Cell Research and Cell Biology, Queen's University Belfast, Belfast BT9 7BL, UK
| | - Jacqueline A James
- Precision Medicine Centre of Excellence, Centre for Cell Research and Cell Biology, Queen's University Belfast, Belfast BT9 7BL, UK
- Department of Cellular Pathology, Royal Victoria Hospital, Belfast Health and Social Care Trust, Belfast BT12 6BA, UK
| | - Manuel Salto-Tellez
- Precision Medicine Centre of Excellence, Centre for Cell Research and Cell Biology, Queen's University Belfast, Belfast BT9 7BL, UK
- Department of Cellular Pathology, Royal Victoria Hospital, Belfast Health and Social Care Trust, Belfast BT12 6BA, UK
| | - Daniel P Brice
- Lydia Becker Institute of Immunology and Inflammation and Wellcome Centre for Cell-Matrix Research, University of Manchester, Manchester M13 9WU, UK
| | - Susan H Berry
- Institute of Medical Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Mairi H McLean
- Division of Molecular & Clinical Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
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Andrews C, McLean MH, Hixon JA, Pontejo SM, Starr T, Malo C, Cam M, Ridnour L, Hickman H, Steele-Mortimer O, Wink DA, Young HA, McVicar DW, Li W, Durum SK. IL-27 induces an IFN-like signature in murine macrophages which in turn modulate colonic epithelium. Front Immunol 2023; 14:1021824. [PMID: 37153622 PMCID: PMC10157156 DOI: 10.3389/fimmu.2023.1021824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 02/08/2023] [Indexed: 05/10/2023] Open
Abstract
Mucosal delivery of IL-27 has been shown to have a therapeutic benefit in murine models of inflammatory bowel disease (IBD). The IL-27 effect was associated with phosphorylated STAT1 (pSTAT1), a product of IL27 receptor signaling, in bowel tissue. To determine whether IL-27 acted directly on colonic epithelium, murine colonoids and primary intact colonic crypts were shown to be unresponsive to IL-27 in vitro and to lack detectable IL-27 receptors. On the other hand, macrophages, which are present in inflamed colon tissue, were responsive to IL-27 in vitro. IL-27 induced pSTAT1 in macrophages, the transcriptome indicated an IFN-like signature, and supernatants induced pSTAT1 in colonoids. IL-27 induced anti-viral activity in macrophages and MHC Class II induction. We conclude that the effects of mucosal delivery of IL-27 in murine IBD are in part based on the known effects of IL27 inducing immunosuppression of T cells mediated by IL-10. We also conclude that IL-27 has potent effects on macrophages in inflamed colon tissue, generating mediators that in turn act on colonic epithelium.
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Affiliation(s)
- Caroline Andrews
- Laboratory of Cancer Innovation, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Mairi H. McLean
- Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee, United Kingdom
| | - Julie A. Hixon
- Laboratory of Cancer Innovation, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Sergio M. Pontejo
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Tregei Starr
- Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, United States
| | - Courtney Malo
- Viral Immunity and Pathogenesis Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Margaret Cam
- Center for Cancer Research Collaborative Bioinformatics Resource, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Lisa Ridnour
- Laboratory of Cancer Innovation, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Heather Hickman
- Viral Immunity and Pathogenesis Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Olivia Steele-Mortimer
- Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, United States
| | - David A. Wink
- Laboratory of Cancer Innovation, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Howard A. Young
- Laboratory of Cancer Innovation, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Daniel W. McVicar
- Laboratory of Cancer Innovation, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Wenqing Li
- Laboratory of Cancer Innovation, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Scott K. Durum
- Laboratory of Cancer Innovation, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
- *Correspondence: Scott K. Durum,
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Di Carmine S, Scott MM, McLean MH, McSorley HJ. The role of interleukin-33 in organ fibrosis. Discov Immunol 2022; 1:kyac006. [PMID: 38566909 PMCID: PMC10917208 DOI: 10.1093/discim/kyac006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/06/2022] [Accepted: 09/22/2022] [Indexed: 04/04/2024]
Abstract
Interleukin (IL)-33 is highly expressed in the nucleus of cells present at barrier sites and signals via the ST2 receptor. IL-33 signalling via ST2 is essential for return to tissue homeostasis after acute inflammation, promoting fibrinogenesis and wound healing at injury sites. However, this wound-healing response becomes aberrant during chronic or sustained inflammation, leading to transforming growth factor beta (TGF-β) release, excessive extracellular matrix deposition, and fibrosis. This review addresses the role of the IL-33 pathway in fibrotic diseases of the lung, liver, gastrointestinal tract, skin, kidney and heart. In the lung and liver, IL-33 release leads to the activation of pro-fibrotic TGF-β, and in these sites, IL-33 has clear pro-fibrotic roles. In the gastrointestinal tract, skin, and kidney, the role of IL-33 is more complex, being both pro-fibrotic and tissue protective. Finally, in the heart, IL-33 serves cardioprotective functions by favouring tissue healing and preventing cardiomyocyte death. Altogether, this review indicates the presence of an unclear and delicate balance between resolving and pro-fibrotic capabilities of IL-33, which has a central role in the modulation of type 2 inflammation and fibrosis in response to tissue injury.
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Affiliation(s)
- Samuele Di Carmine
- Division of Cell Signalling and Immunology, School of Life Sciences, Wellcome Trust Building, University of Dundee, Dundee, UK
| | - Molly M Scott
- Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Ninewells Hospital, Dundee, UK
| | - Mairi H McLean
- Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Ninewells Hospital, Dundee, UK
| | - Henry J McSorley
- Division of Cell Signalling and Immunology, School of Life Sciences, Wellcome Trust Building, University of Dundee, Dundee, UK
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Evans JA, Carlotti E, Lin ML, Hackett RJ, Haughey MJ, Passman AM, Dunn L, Elia G, Porter RJ, McLean MH, Hughes F, ChinAleong J, Woodland P, Preston SL, Griffin SM, Lovat L, Rodriguez-Justo M, Huang W, Wright NA, Jansen M, McDonald SAC. Clonal Transitions and Phenotypic Evolution in Barrett's Esophagus. Gastroenterology 2022; 162:1197-1209.e13. [PMID: 34973296 PMCID: PMC8972067 DOI: 10.1053/j.gastro.2021.12.271] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 12/21/2021] [Accepted: 12/22/2021] [Indexed: 01/10/2023]
Abstract
BACKGROUND & AIMS Barrett's esophagus (BE) is a risk factor for esophageal adenocarcinoma but our understanding of how it evolves is poorly understood. We investigated BE gland phenotype distribution, the clonal nature of phenotypic change, and how phenotypic diversity plays a role in progression. METHODS Using immunohistochemistry and histology, we analyzed the distribution and the diversity of gland phenotype between and within biopsy specimens from patients with nondysplastic BE and those who had progressed to dysplasia or had developed postesophagectomy BE. Clonal relationships were determined by the presence of shared mutations between distinct gland types using laser capture microdissection sequencing of the mitochondrial genome. RESULTS We identified 5 different gland phenotypes in a cohort of 51 nondysplastic patients where biopsy specimens were taken at the same anatomic site (1.0-2.0 cm superior to the gastroesophageal junction. Here, we observed the same number of glands with 1 and 2 phenotypes, but 3 phenotypes were rare. We showed a common ancestor between parietal cell-containing, mature gastric (oxyntocardiac) and goblet cell-containing, intestinal (specialized) gland phenotypes. Similarly, we have shown a clonal relationship between cardiac-type glands and specialized and mature intestinal glands. Using the Shannon diversity index as a marker of gland diversity, we observed significantly increased phenotypic diversity in patients with BE adjacent to dysplasia and predysplasia compared to nondysplastic BE and postesophagectomy BE, suggesting that diversity develops over time. CONCLUSIONS We showed that the range of BE phenotypes represents an evolutionary process and that changes in gland diversity may play a role in progression. Furthermore, we showed a common ancestry between gastric and intestinal-type glands in BE.
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Affiliation(s)
- James A Evans
- Clonal Dynamics in Epithelia Laboratory, Queen Mary University of London, London, United Kingdom
| | - Emanuela Carlotti
- Clonal Dynamics in Epithelia Laboratory, Queen Mary University of London, London, United Kingdom
| | - Meng-Lay Lin
- Clonal Dynamics in Epithelia Laboratory, Queen Mary University of London, London, United Kingdom
| | - Richard J Hackett
- Clonal Dynamics in Epithelia Laboratory, Queen Mary University of London, London, United Kingdom
| | - Magnus J Haughey
- School of Mathematical Sciences, Queen Mary University of London, London, United Kingdom
| | - Adam M Passman
- Clonal Dynamics in Epithelia Laboratory, Queen Mary University of London, London, United Kingdom
| | - Lorna Dunn
- Northern Institute for Cancer Research, Newcastle University, Newcastle, United Kingdom
| | - George Elia
- Clonal Dynamics in Epithelia Laboratory, Queen Mary University of London, London, United Kingdom
| | - Ross J Porter
- Department of Gastroenterology, University of Aberdeen, Aberdeen, United Kingdom
| | - Mairi H McLean
- Department of Gastroenterology, University of Aberdeen, Aberdeen, United Kingdom
| | - Frances Hughes
- Department of Surgery, Barts Health NHS Trust, Royal London Hospital, London, United Kingdom
| | - Joanne ChinAleong
- Department of Histopathology, Barts Health NHS Trust, Royal London Hospital, London, United Kingdom
| | - Philip Woodland
- Endoscopy Unit, Barts Health NHS Trust, Royal London Hospital, London, United Kingdom
| | - Sean L Preston
- Endoscopy Unit, Barts Health NHS Trust, Royal London Hospital, London, United Kingdom
| | - S Michael Griffin
- School of Mathematical Sciences, Queen Mary University of London, London, United Kingdom; Royal College of Surgeons of Edinburgh, Edinburgh, United Kingdom
| | - Laurence Lovat
- Oeosophagogastric Disorders Centre, Department of Gastroenterology, University College London Hospitals, London, United Kingdom; Research Department of Tissue and Energy, University College London Division of Surgical and Interventional Science, University College London, London, United Kingdom
| | - Manuel Rodriguez-Justo
- Department of Cellular Pathology, University College London Hospitals, London, United Kingdom
| | - Weini Huang
- School of Mathematical Sciences, Queen Mary University of London, London, United Kingdom
| | - Nicholas A Wright
- Epithelial Stem Cell Laboratory, Centre for Cancer Genomics and Computational Biology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Marnix Jansen
- Department of Cellular Pathology, University College London Hospitals, London, United Kingdom; UCL Cancer Institute, University College London, London, United Kingdom
| | - Stuart A C McDonald
- Clonal Dynamics in Epithelia Laboratory, Queen Mary University of London, London, United Kingdom.
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Brice DP, Murray GI, Wilson HM, Porter RJ, Berry S, Durum SK, McLean MH. Interleukin-27 Regulates the Function of the Gastrointestinal Epithelial Barrier in a Human Tissue-Derived Organoid Model. Biology (Basel) 2022; 11:biology11030427. [PMID: 35336801 PMCID: PMC8945023 DOI: 10.3390/biology11030427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/28/2022] [Accepted: 03/04/2022] [Indexed: 11/25/2022]
Abstract
A treatment with direct healing effects on the gastrointestinal epithelial barrier is desirable for inflammatory bowel disease (IBD). Interleukin-27 (IL-27) is an immunoregulatory cytokine, and oral delivery is an effective treatment in murine models of IBD. We aimed to define IL-27 effects on the human gastrointestinal epithelial barrier. We characterised gene and protein expression of permeability mediators in a human colon-derived organoid model. Functional permeability was determined in an organoid-derived 2D monolayer by transepithelial electrical resistance. IL-27 effects on epithelial innate immune responses were assessed through expression of cytokines, anti-microbial peptides and MUC genes. IL-27 effects on wound healing and proliferation were determined in human colon epithelial cell lines. IL-27 led to restoration of permeability regulation following inflammatory cytokine insult (p = 0.001), associated with differential expression of tight junction mediators with decrease in claudin 2 (p = 0.024) and increase in claudin 4 (p < 0.001), E-cadherin (p < 0.001) and zona occludens (p = 0.0014). IL-27 evoked differential gene expression of epithelial-derived innate immune responses (reduced IL1B and IL18, and increased IL33, HBD1, MUC1 and MUC2; p < 0.012). IL-27 induced epithelial barrier wound healing through restitution (p < 0.001), and increased proliferation (p < 0.001) following injury. Overall, IL-27 provokes mucosal healing of the human gastrointestinal epithelial barrier.
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Affiliation(s)
- Daniel P. Brice
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, UK; (D.P.B.); (G.I.M.); (H.M.W.); (S.B.)
| | - Graeme I. Murray
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, UK; (D.P.B.); (G.I.M.); (H.M.W.); (S.B.)
| | - Heather M. Wilson
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, UK; (D.P.B.); (G.I.M.); (H.M.W.); (S.B.)
| | - Ross J. Porter
- Centre for Inflammation Research, Queens Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Susan Berry
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, UK; (D.P.B.); (G.I.M.); (H.M.W.); (S.B.)
| | - Scott K. Durum
- Cytokines and Immunity Section, Laboratory of Cancer Immunometabolism, National Cancer Institute (NCI), National Institute of Health (NIH), Frederick, MD 21702, USA;
| | - Mairi H. McLean
- Division of Molecular & Clinical Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
- Correspondence:
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Porter RJ, Murray GI, Alnabulsi A, Humphries MP, James JA, Salto‐Tellez M, Craig SG, Wang JM, Yoshimura T, McLean MH. Colonic epithelial cathelicidin (LL-37) expression intensity is associated with progression of colorectal cancer and presence of CD8 + T cell infiltrate. J Pathol Clin Res 2021; 7:495-506. [PMID: 33988317 PMCID: PMC8363930 DOI: 10.1002/cjp2.222] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 04/01/2021] [Accepted: 04/14/2021] [Indexed: 12/17/2022]
Abstract
Colorectal cancer (CRC) remains a leading cause of cancer mortality. Here, we define the colonic epithelial expression of cathelicidin (LL-37) in CRC. Cathelicidin exerts pleotropic effects including anti-microbial and immunoregulatory functions. Genetic knockout of cathelicidin led to increased size and number of colorectal tumours in the azoxymethane-induced murine model of CRC. We aimed to translate this to human disease. The expression of LL-37 in a large (n = 650) fully characterised cohort of treatment-naïve primary human colorectal tumours and 50 matched normal mucosa samples with associated clinical and pathological data (patient age, gender, tumour site, tumour stage [UICC], presence or absence of extra-mural vascular invasion, tumour differentiation, mismatch repair protein status, and survival to 18 years) was assessed by immunohistochemistry. The biological consequences of LL-37 expression on the epithelial barrier and immune cell phenotype were assessed using targeted quantitative PCR gene expression of epithelial permeability (CLDN2, CLDN4, OCLN, CDH1, and TJP1) and cytokine (IL-1β, IL-18, IL-33, IL-10, IL-22, and IL-27) genes in a human colon organoid model, and CD3+ , CD4+ , and CD8+ lymphocyte phenotyping by immunohistochemistry, respectively. Our data reveal that loss of cathelicidin is associated with human CRC progression, with a switch in expression intensity an early feature of CRC. LL-37 expression intensity is associated with CD8+ T cell infiltrate, influenced by tumour characteristics including mismatch repair protein status. There was no effect on epithelial barrier gene expression. These data offer novel insights into the contribution of LL-37 to the pathogenesis of CRC and as a therapeutic molecule.
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Affiliation(s)
- Ross J Porter
- Centre for Inflammation Research, Queens Medical Research InstituteUniversity of EdinburghEdinburghUK
| | - Graeme I Murray
- School of Medicine, Medical Sciences and NutritionUniversity of AberdeenAberdeenUK
| | - Abdo Alnabulsi
- School of Medicine, Medical Sciences and NutritionUniversity of AberdeenAberdeenUK
| | - Matthew P Humphries
- Precision Medicine Centre of Excellence, The Patrick G Johnston Centre for Cancer ResearchQueen's UniversityBelfastUK
| | - Jacqueline A James
- Precision Medicine Centre of Excellence, The Patrick G Johnston Centre for Cancer ResearchQueen's UniversityBelfastUK
| | - Manuel Salto‐Tellez
- Precision Medicine Centre of Excellence, The Patrick G Johnston Centre for Cancer ResearchQueen's UniversityBelfastUK
- Integrated Pathology Programme, Division of Molecular PathologyThe Institute of Cancer ResearchLondonUK
| | - Stephanie G Craig
- Precision Medicine Centre of Excellence, The Patrick G Johnston Centre for Cancer ResearchQueen's UniversityBelfastUK
| | - Ji M Wang
- Cancer and Inflammation Program, Center for Cancer ResearchNational Cancer Institute at FrederickFrederickMDUSA
| | - Teizo Yoshimura
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama UniversityOkayamaJapan
| | - Mairi H McLean
- Division of Molecular & Clinical Medicine, School of MedicineUniversity of DundeeDundeeUK
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Mathur A, McLean MH, Cao H, Vickers MA. Hyposplenism and Gastrointestinal Diseases: Significance and Mechanisms. Dig Dis 2021; 40:290-298. [PMID: 34034254 DOI: 10.1159/000517338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/10/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Functional hyposplenism is a recognized complication of several gastroenterological disorders, including coeliac and inflammatory bowel diseases, and is believed to contribute to the increased infection risk seen in these disorders. SUMMARY The mechanisms of hyposplenism are poorly understood. In this article, we review possible mechanisms underlying development of functional hyposplenism and discuss implications for its management. KEY MESSAGES Identifying functional hyposplenism is important, as it may permit earlier recognition and treatment of serious infections through patient education and vaccination.
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Affiliation(s)
- Abhinav Mathur
- Infection, Immunity and Inflammation, Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Mairi H McLean
- Division of Molecular and Cellular Medicine, School of Medicine, University of Dundee, Dundee, United Kingdom
| | - Huan Cao
- Infection, Immunity and Inflammation, Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Mark A Vickers
- Infection, Immunity and Inflammation, Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
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9
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Abstract
Cancer comprises a collection of highly proliferative and heterogeneous cells growing within an adaptive and evolving tumour microenvironment. Cancer survival rates have significantly improved following decades of cancer research. However, many experimental and preclinical studies do not translate to the bedside, reflecting the challenges of modelling the complexities and multicellular basis of human disease. Organoids are novel, complex, three-dimensional ex vivo tissue cultures that are derived from embryonic stem cells, induced pluripotent stem cells or tissue-resident progenitor cells, and represent a near-physiological model for studying cancer. Organoids develop by self-organisation, and can accurately represent the diverse genetic, cellular and pathophysiological hallmarks of cancer. In addition, co-culture methods and the ability to genetically manipulate these organoids have widened their utility in cancer research. Organoids thus offer a new and exciting platform for studying cancer and directing personalised therapies. This review aims to highlight how organoids are shaping the future of cancer research.
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Affiliation(s)
- Ross J Porter
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Scotland, UK
- Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Scotland, UK
| | - Graeme I Murray
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Scotland, UK
| | - Mairi H McLean
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Scotland, UK.
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10
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Porter RJ, Murray GI, Brice DP, Petty RD, McLean MH. Novel biomarkers for risk stratification of Barrett's oesophagus associated neoplastic progression-epithelial HMGB1 expression and stromal lymphocytic phenotype. Br J Cancer 2019; 122:545-554. [PMID: 31831860 PMCID: PMC7028982 DOI: 10.1038/s41416-019-0685-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 10/30/2019] [Accepted: 11/28/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The incidence of oesophageal adenocarcinoma is increasing globally. Barrett's oesophagus (BO) is a pre-malignant condition with no biomarker to risk stratify those at highest risk of dysplasia and malignant transformation. METHODS Subcellular epithelial protein (HMGB1, p53, RUNX3) expression, alongside expression of CD20, CD4, CD8 and Foxp3 to characterise stromal B lymphocyte, and helper, cytotoxic and regulatory T-lymphocyte cell infiltrate, respectively, was assessed by immunohistochemistry in 218 human tissue samples including normal oesophageal/gastric biopsies (n = 39), BO (non-dysplasia, dysplasia, non-dysplastic background from progressors to dysplasia or cancer, n = 121) and oesophageal adenocarcinoma (n = 58). RESULTS There is a dynamic subcellular epithelial expression of HMGB1 (loss of nuclear, emergence of cytoplasmic), associated with epithelial p53 expression and differential immune cell phenotype in oesophageal neoplastic progression. We identify a protein signature and lymphocyte infiltrate in non-dysplastic BO when progressive disease (dysplasia or adenocarcinoma) is present but not histologically represented in the biopsied field. There is a dynamic stromal lymphocytic infiltrate in oesophageal neoplastic progression. CONCLUSIONS This data reveals novel insights into the microenvironment of BO and progression towards cancer and identifies a novel high-risk biomarker of disease progression to aid surveillance strategies to identify early progression and impact future incidence of oesophageal cancer.
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Affiliation(s)
- Ross J Porter
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK
| | - Graeme I Murray
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK
| | - Daniel P Brice
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK
| | - Russell D Petty
- Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee, DD1 1GZ, UK
| | - Mairi H McLean
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK.
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12
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Abstract
The intestine serves as both our largest single barrier to the external environment and the host of more immune cells than any other location in our bodies. Separating these potential combatants is a single layer of dynamic epithelium composed of heterogeneous epithelial subtypes, each uniquely adapted to carry out a subset of the intestine’s diverse functions. In addition to its obvious role in digestion, the intestinal epithelium is responsible for a wide array of critical tasks, including maintaining barrier integrity, preventing invasion by microbial commensals and pathogens, and modulating the intestinal immune system. Communication between these epithelial cells and resident immune cells is crucial for maintaining homeostasis and coordinating appropriate responses to disease and can occur through cell-to-cell contact or by the release or recognition of soluble mediators. The objective of this review is to highlight recent literature illuminating how cytokines and chemokines, both those made by and acting on the intestinal epithelium, orchestrate many of the diverse functions of the intestinal epithelium and its interactions with immune cells in health and disease. Areas of focus include cytokine control of intestinal epithelial proliferation, cell death, and barrier permeability. In addition, the modulation of epithelial-derived cytokines and chemokines by factors such as interactions with stromal and immune cells, pathogen and commensal exposure, and diet will be discussed.
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Affiliation(s)
- Caroline Andrews
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
| | - Mairi H McLean
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, United Kingdom
| | - Scott K Durum
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, United States
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13
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Rodriguez-Palacios A, Harding A, Menghini P, Himmelman C, Retuerto M, Nickerson KP, Lam M, Croniger CM, McLean MH, Durum SK, Pizarro TT, Ghannoum MA, Ilic S, McDonald C, Cominelli F. The Artificial Sweetener Splenda Promotes Gut Proteobacteria, Dysbiosis, and Myeloperoxidase Reactivity in Crohn's Disease-Like Ileitis. Inflamm Bowel Dis 2018; 24:1005-1020. [PMID: 29554272 PMCID: PMC5950546 DOI: 10.1093/ibd/izy060] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Indexed: 12/16/2022]
Abstract
Background Epidemiological studies indicate that the use of artificial sweeteners doubles the risk for Crohn's disease (CD). Herein, we experimentally quantified the impact of 6-week supplementation with a commercial sweetener (Splenda; ingredients sucralose maltodextrin, 1:99, w/w) on both the severity of CD-like ileitis and the intestinal microbiome alterations using SAMP1/YitFc (SAMP) mice. Methods Metagenomic shotgun DNA sequencing was first used to characterize the microbiome of ileitis-prone SAMP mice. Then, 16S rRNA microbiome sequencing, quantitative polymerase chain reaction, fluorescent in situ hybridization (FISH), bacterial culture, stereomicroscopy, histology, and myeloperoxidase (MPO) activity analyses were then implemented to compare the microbiome and ileitis phenotype in SAMP with that of control ileitis-free AKR/J mice after Splenda supplementation. Results Metagenomics indicated that SAMP mice have a gut microbial phenotype rich in Bacteroidetes, and experiments showed that Helicobacteraceae did not have an exacerbating effect on ileitis. Splenda did not increase the severity of (stereomicroscopic/histological) ileitis; however, biochemically, ileal MPO activity was increased in SAMP treated with Splenda compared with nonsupplemented mice (P < 0.022) and healthy AKR mice. Splenda promoted dysbiosis with expansion of Proteobacteria in all mice, and E. coli overgrowth with increased bacterial infiltration into the ileal lamina propria of SAMP mice. FISH showed increase malX gene-carrying bacterial clusters in the ilea of supplemented SAMP (but not AKR) mice. Conclusions Splenda promoted gut Proteobacteria, dysbiosis, and biochemical MPO reactivity in a spontaneous model of (Bacteroidetes-rich) ileal CD. Our results indicate that although Splenda may promote parallel microbiome alterations in CD-prone and healthy hosts, this did not result in elevated MPO levels in healthy mice, only CD-prone mice. The consumption of sucralose/maltodextrin-containing foods might exacerbate MPO intestinal reactivity only in individuals with a pro-inflammatory predisposition, such as CD.
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Affiliation(s)
| | - Andrew Harding
- Division of Gastroenterology and Liver Disease, Department of Medicine, School of Medicine, Cleveland, Ohio
| | - Paola Menghini
- Division of Gastroenterology and Liver Disease, Department of Medicine, School of Medicine, Cleveland, Ohio
| | - Catherine Himmelman
- Division of Gastroenterology and Liver Disease, Department of Medicine, School of Medicine, Cleveland, Ohio
| | - Mauricio Retuerto
- Center for Medical Mycology, Department of Dermatology, School of Medicine, Cleveland, Ohio
| | - Kourtney P Nickerson
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio
| | - Minh Lam
- Division of Gastroenterology and Liver Disease, Department of Medicine, School of Medicine, Cleveland, Ohio
| | | | - Mairi H McLean
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Scotland, UK
| | - Scott K Durum
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
| | - Theresa T Pizarro
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, Ohio
| | - Mahmoud A Ghannoum
- Center for Medical Mycology, Department of Dermatology, School of Medicine, Cleveland, Ohio
| | - Sanja Ilic
- Department of Human Sciences and Human Nutrition, The Ohio State University, Columbus, Ohio
| | - Christine McDonald
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio
| | - Fabio Cominelli
- Division of Gastroenterology and Liver Disease, Department of Medicine, School of Medicine, Cleveland, Ohio
- Digestive Health Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
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14
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Yoshimura T, McLean MH, Dzutsev AK, Yao X, Chen K, Huang J, Gong W, Zhou J, Xiang Y, H Badger J, O'hUigin C, Thovarai V, Tessarollo L, Durum SK, Trinchieri G, Bian XW, Wang JM. The Antimicrobial Peptide CRAMP Is Essential for Colon Homeostasis by Maintaining Microbiota Balance. J Immunol 2018; 200:2174-2185. [PMID: 29440355 DOI: 10.4049/jimmunol.1602073] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 12/21/2017] [Indexed: 01/05/2023]
Abstract
Commensal bacteria are critical for physiological functions in the gut, and dysbiosis in the gut may cause diseases. In this article, we report that mice deficient in cathelin-related antimicrobial peptide (CRAMP) were defective in the development of colon mucosa and highly sensitive to dextran sulfate sodium (DSS)-elicited colitis, as well as azoxymethane-mediated carcinogenesis. Pretreatment of CRAMP-/- mice with antibiotics markedly reduced the severity of DSS-induced colitis, suggesting CRAMP as a limiting factor on dysbiosis in the colon. This was supported by observations that wild-type (WT) mice cohoused with CRAMP-/- mice became highly sensitive to DSS-induced colitis, and the composition of fecal microbiota was skewed by CRAMP deficiency. In particular, several bacterial species that are typically found in oral microbiota, such as Mogibacterium neglectum, Desulfovibrio piger, and Desulfomicrobium orale, were increased in feces of CRAMP-/- mice and were transferred to WT mice during cohousing. When littermates of CRAMP+/- parents were examined, the composition of the fecal microbiota of WT pups and heterozygous parents was similar. In contrast, although the difference in fecal microbiota between CRAMP-/- and WT pups was small early on after weaning and single mouse housing, there was an increasing divergence with prolonged single housing. These results indicate that CRAMP is critical in maintaining colon microbiota balance and supports mucosal homeostasis, anti-inflammatory responses, and protection from carcinogenesis.
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Affiliation(s)
- Teizo Yoshimura
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702; .,Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Mairi H McLean
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702.,School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, United Kingdom
| | - Amiran K Dzutsev
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Xiaohong Yao
- Institute of Pathology and Southwest Cancer Center, Third Military Medical University, Chongqing 400038, China
| | - Keqiang Chen
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Jiaqiang Huang
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702.,College of Life Sciences and Bioengineering, School of Science, Beijing Jiaotong University, Beijing 100044, China
| | - Wanghua Gong
- Basic Science Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702; and
| | - Jiamin Zhou
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Yi Xiang
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Jonathan H Badger
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Colm O'hUigin
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Vishal Thovarai
- Basic Science Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702; and
| | - Lino Tessarollo
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Scott K Durum
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Giorgio Trinchieri
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702
| | - Xiu-Wu Bian
- Institute of Pathology and Southwest Cancer Center, Third Military Medical University, Chongqing 400038, China
| | - Ji Ming Wang
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702;
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15
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Shen W, Hixon JA, McLean MH, Li WQ, Durum SK. IL-22-Expressing Murine Lymphocytes Display Plasticity and Pathogenicity in Reporter Mice. Front Immunol 2016; 6:662. [PMID: 26834739 PMCID: PMC4717188 DOI: 10.3389/fimmu.2015.00662] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 12/26/2015] [Indexed: 12/31/2022] Open
Abstract
IL-22 has multiple activities ranging from tissue repair to inflammation. To characterize the pathogenicity and plasticity of cells that produce IL-22, a novel reporter mouse strain was generated. Homeostatic IL-22 reporter expression was observed in intestinal lymphoid cells identified as CD4 T cells and ILC3 cells. In a model of inflammatory bowel disease, CD4 T cells strongly expressed the IL-22 reporter in mesenteric lymph node. To examine plasticity of IL-22+ T cells, they were purified after generation in vitro or in vivo from inflamed colon, and then cultured under Th1, Th2, or Th17 conditions. In vitro-generated IL-22+ CD4 T cells showed relatively durable IL-22 expression under Th1 or Th2 conditions, whereas in vivo-generated cells rapidly lost IL-22 expression under these conditions. In vitro-generated cells could not be diverted to express Th1 or Th2 cytokines despite the expression of “master regulators.” In vivo-generated cells could be diverted, at very low frequency, to express Th1 or Th2 cytokines. Both in vitro- and in vivo-generated cells could be induced in vitro to express high levels of IL-17A and IL-17F, assigning them to a “Th17 biased” class. However, IL-27 potently downregulated IL-22 expression. To examine IL-22+ T cell pathogenicity, in vitro-generated cells were transferred into Rag1−/− mice, retaining the modest reporter expression and inducing moderate colitis. In contrast, IL-22 expressers from colitic mice, transferred into secondary hosts, lost reporter expression, acquired high T-bet and modest IFNγ and IL-17 expression, and induced severe colitis. These findings are consistent with a model of strong polarization under optimal in vitro conditions, but a plastic state of T cells in vivo.
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Affiliation(s)
- Wei Shen
- Cancer and Inflammation Program, Laboratory of Molecular Immunoregulation, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Frederick, MD , USA
| | - Julie A Hixon
- Cancer and Inflammation Program, Laboratory of Molecular Immunoregulation, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Frederick, MD , USA
| | - Mairi H McLean
- Cancer and Inflammation Program, Laboratory of Molecular Immunoregulation, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Frederick, MD , USA
| | - Wen Qing Li
- Cancer and Inflammation Program, Laboratory of Molecular Immunoregulation, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Frederick, MD , USA
| | - Scott K Durum
- Cancer and Inflammation Program, Laboratory of Molecular Immunoregulation, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Frederick, MD , USA
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16
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Abstract
The microbiota of the human metaorganism is not a mere bystander. These microbes have coevolved with us and are pivotal to normal development and homoeostasis. Dysbiosis of the GI microbiota is associated with many disease susceptibilities, including obesity, malignancy, liver disease and GI pathology such as IBD. It is clear that there is direct and indirect crosstalk between this microbial community and host immune response. However, the precise mechanism of this microbial influence in disease pathogenesis remains elusive and is now a major research focus. There is emerging literature on the role of the microbiota in the pathogenesis of autoimmune disease, with clear and increasing evidence that changes in the microbiota are associated with some of these diseases. Examples include type 1 diabetes, coeliac disease and rheumatoid arthritis, and these contribute significantly to global morbidity and mortality. Understanding the role of the microbiota in autoimmune diseases may offer novel insight into factors that initiate and drive disease progression, stratify patient risk for complications and ultimately deliver new therapeutic strategies. This review summarises the current status on the role of the microbiota in autoimmune diseases.
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Affiliation(s)
- Mairi H McLean
- Laboratory of Molecular Immunoregulation, Cancer & Inflammation Program, National Cancer Institute, Frederick, Maryland, USA
| | - Dario Dieguez
- Society for Women’s Health Research, Scientific Affairs, Washington, DC, USA
| | - Lindsey M Miller
- Society for Women’s Health Research, Scientific Affairs, Washington, DC, USA
| | - Howard A Young
- Laboratory of Molecular Immunoregulation, Cancer & Inflammation Program, National Cancer Institute, Frederick, Maryland, USA
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Abstract
Gastric cancer remains highly prevalent and accounts for a notable proportion of global cancer mortality. This cancer is also associated with poor survival rates. Understanding the genetic basis of gastric cancer will offer insights into its pathogenesis, help identify new biomarkers and novel treatment targets, aid prognostication and could be central to developing individualized treatment strategies in the future. An inherited component contributes to <3% of gastric cancers; the majority of genetic changes associated with gastric cancer are acquired. Over the past few decades, advances in technology and high-throughput analysis have improved understanding of the molecular aspects of the pathogenesis of gastric cancer. These aspects are multifaceted and heterogeneous and represent a wide spectrum of several key genetic influences, such as chromosomal instability, microsatellite instability, changes in microRNA profile, somatic gene mutations or functional single nucleotide polymorphisms. These genetic aspects of the pathogenesis of gastric cancer will be addressed in this Review.
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Affiliation(s)
- Mairi H McLean
- National Cancer Institute, Laboratory of Molecular Immunoregulation, Cancer &Inflammation Program, 1050 Boyles Street, Frederick, MD 21702-1201, USA
| | - Emad M El-Omar
- Division of Applied Medicine, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB51 5ER, UK
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18
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Hanson ML, Hixon JA, Li W, Felber BK, Anver MR, Stewart CA, Janelsins BM, Datta SK, Shen W, McLean MH, Durum SK. Oral delivery of IL-27 recombinant bacteria attenuates immune colitis in mice. Gastroenterology 2014; 146:210-221.e13. [PMID: 24120477 PMCID: PMC3920828 DOI: 10.1053/j.gastro.2013.09.060] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 09/17/2013] [Accepted: 09/24/2013] [Indexed: 12/15/2022]
Abstract
BACKGROUND & AIMS Treatment of inflammatory bowel disease would benefit from specific targeting of therapeutics to the intestine. We developed a strategy for localized delivery of the immunosuppressive cytokine interleukin (IL)-27, which is synthesized actively in situ by the food-grade bacterium Lactococcus lactis (LL-IL-27), and tested its ability to reduce colitis in mice. METHODS The 2 genes encoding mouse IL-27 were synthesized with optimal codon use for L lactis and joined with a linker; a signal sequence was added to allow for product secretion. The construct was introduced into L lactis. Colitis was induced via transfer of CD4(+)CD45RB(hi) T cells into Rag(-/-) mice to induce colitis; 7.5 weeks later, LL-IL-27 was administered to mice via gavage. Intestinal tissues were collected and analyzed. RESULTS LL-IL-27 administration protected mice from T-cell transfer-induced enterocolitis and death. LL-IL-27 reduced disease activity scores, pathology features of large and small bowel, and levels of inflammatory cytokines in colonic tissue. LL-IL-27 also reduced the numbers of CD4(+) and IL-17(+) T cells in gut-associated lymphoid tissue. The effects of LL-IL-27 required production of IL-10 by the transferred T cells. LL-IL-27 was more effective than either LL-IL-10 or systemic administration of recombinant IL-27 in reducing colitis in mice. LL-IL-27 also reduced colitis in mice after administration of dextran sodium sulfate. CONCLUSIONS LL-IL-27 reduces colitis in mice by increasing the production of IL-10. Mucosal delivery of LL-IL-27 could be a more effective and safer therapy for inflammatory bowel disease.
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Affiliation(s)
- Miranda L. Hanson
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Julie A. Hixon
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Wenqing Li
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Barbara K. Felber
- Human Retrovirus Pathogenesis Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Miriam R. Anver
- Laboratory Animal Services Program (LASP), Science Applications International Corporation (SAIC), National Cancer Institute, Frederick, MD 21702, USA
| | - C. Andrew Stewart
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Brian M. Janelsins
- Bacterial Pathogenesis Unit, Laboratory of Clinical Infectious Disease, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Sandip K. Datta
- Bacterial Pathogenesis Unit, Laboratory of Clinical Infectious Disease, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Wei Shen
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Mairi H. McLean
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Scott K. Durum
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA,Correspondence: Scott K. Durum, National Cancer Institute, NIH, Bldg 560 Rm 31-71, Frederick MD 21702-1201; T 301-846-1545; F 301-846-6720;
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19
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Abstract
Genetic epidemiology is an important discipline that is helping to unravel the aetiology and pathogenesis of complex human diseases. In the context of gastrointestinal malignancy, the paradigm model of host genetic influence on disease outcome is H. pylori-associated gastric adenocarcinoma. This cancer represents a classic example of an inflammation-induced malignancy and highlights the importance of host genetics in disease development. This chapter gives an insight into how genetic epidemiology can play an important role in the development of gastric cancer. Increasing our understanding of host genetics in cancer development may allow particularly susceptible individuals to be targeted for screening or treatment to reduce risk of future malignant transformation.
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Affiliation(s)
- Mairi H McLean
- Gastrointestinal Research Group, Division of Applied Medicine, School of Medicine and Dentistry, Institute of Medical Sciences, Aberdeen University, Foresterhill, Aberdeen, Scotland, AB25 2ZD, UK
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20
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Thomson JM, Hansen R, Berry SH, Hope ME, Murray GI, Mukhopadhya I, McLean MH, Shen Z, Fox JG, El-Omar E, Hold GL. Enterohepatic helicobacter in ulcerative colitis: potential pathogenic entities? PLoS One 2011; 6:e17184. [PMID: 21383845 PMCID: PMC3044171 DOI: 10.1371/journal.pone.0017184] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Accepted: 01/24/2011] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Changes in bacterial populations termed "dysbiosis" are thought central to ulcerative colitis (UC) pathogenesis. In particular, the possibility that novel Helicobacter organisms play a role in human UC has been debated but not comprehensively investigated. The aim of this study was to develop a molecular approach to investigate the presence of Helicobacter organisms in adults with and without UC. METHODOLOGY/PRINCIPAL FINDINGS A dual molecular approach to detect Helicobacter was developed. Oligonucleotide probes against the genus Helicobacter were designed and optimised alongside a validation of published H. pylori probes. A comprehensive evaluation of Helicobacter genus and H. pylori PCR primers was also undertaken. The combined approach was then assessed in a range of gastrointestinal samples prior to assessment of a UC cohort. Archival colonic samples were available from 106 individuals for FISH analysis (57 with UC and 49 non-IBD controls). A further 118 individuals were collected prospectively for dual FISH and PCR analysis (86 UC and 32 non-IBD controls). An additional 27 non-IBD controls were available for PCR analysis. All Helicobacter PCR-positive samples were sequenced. The association between Helicobacter and each study group was statistically analysed using the Pearson Chi Squared 2 tailed test. Helicobacter genus PCR positivity was significantly higher in UC than controls (32 of 77 versus 11 of 59, p = 0.004). Sequence analysis indicated enterohepatic Helicobacter species prevalence was significantly higher in the UC group compared to the control group (30 of 77 versus 2 of 59, p<0.0001). PCR and FISH results were concordant in 74 (67.9%) of subjects. The majority of discordant results were attributable to a higher positivity rate with FISH than PCR. CONCLUSIONS/SIGNIFICANCE Helicobacter organisms warrant consideration as potential pathogenic entities in UC. Isolation of these organisms from colonic tissue is needed to enable interrogation of pathogenicity against established criteria.
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Affiliation(s)
- John M. Thomson
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen, United Kingdom
| | - Richard Hansen
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen, United Kingdom
- Child Health, University of Aberdeen, Royal Aberdeen Children's Hospital, Foresterhill, Aberdeen, United Kingdom
| | - Susan H. Berry
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen, United Kingdom
| | - Mairi E. Hope
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen, United Kingdom
| | - Graeme I. Murray
- Department of Pathology, University of Aberdeen, Foresterhill, Aberdeen, United Kingdom
| | - Indrani Mukhopadhya
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen, United Kingdom
| | - Mairi H. McLean
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen, United Kingdom
| | - Zeli Shen
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - James G. Fox
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Emad El-Omar
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen, United Kingdom
| | - Georgina L. Hold
- Gastrointestinal Research Group, Division of Applied Medicine, University of Aberdeen, Foresterhill, Aberdeen, United Kingdom
- * E-mail:
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21
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McLean MH, Murray GI, Stewart KN, Norrie G, Mayer C, Hold GL, Thomson J, Fyfe N, Hope M, Mowat NAG, Drew JE, El-Omar EM. The inflammatory microenvironment in colorectal neoplasia. PLoS One 2011; 6:e15366. [PMID: 21249124 PMCID: PMC3017541 DOI: 10.1371/journal.pone.0015366] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Accepted: 11/11/2010] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is a major cause of mortality and morbidity worldwide. Inflammatory activity within the stroma of invasive colorectal tumours is known to be a key predictor of disease activity with type, density and location of immune cells impacting on patient prognosis. To date, there has been no report of inflammatory phenotype within pre-malignant human colonic adenomas. Assessing the stromal microenvironment and particularly, inflammatory activity within colorectal neoplastic lesions is central to understanding early colorectal carcinogenesis. Inflammatory cell infiltrate was assessed by immunohistochemistry in paired colonic adenoma and adjacent normal colonic mucosa samples, and adenomas exhibiting increasing degrees of epithelial cell dysplasia. Macrophage phenotype was assessed using double stain immunohistochemistry incorporating expression of an intracellular enzyme of function. A targeted array of inflammatory cytokine and receptor genes, validated by RT-PCR, was used to assess inflammatory gene expression. Inflammatory cell infiltrates are a key feature of sporadic adenomatous colonic polyps with increased macrophage, neutrophil and T cell (specifically helper and activated subsets) infiltration in adenomatous colonic polyps, that increases in association with characteristics of high malignant potential, namely, increasing degree of cell dysplasia and adenoma size. Macrophages within adenomas express iNOS, suggestive of a pro-inflammatory phenotype. Several inflammatory cytokine genes (CXCL1, CXCL2, CXCL3, CCL20, IL8, CCL23, CCL19, CCL21, CCL5) are dysregulated in adenomas. This study has provided evidence of increased inflammation within pre-malignant colonic adenomas. This may allow potential mechanistic pathways in the initiation and promotion of early colorectal carcinogenesis to be identified.
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Affiliation(s)
- Mairi H McLean
- Gastrointestinal Research Group, School of Medicine and Dentistry, Aberdeen University, Aberdeen, United Kingdom
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McLean MH, El-Omar EM. Esophageal cancers and Helicobacter pylori: do host genes matter? Gastroenterology 2010; 139:17-9. [PMID: 20639080 DOI: 10.1053/j.gastro.2010.05.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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Jeffery N, McLean MH, El-Omar EM, Murray GI. The matrix metalloproteinase/tissue inhibitor of matrix metalloproteinase profile in colorectal polyp cancers. Histopathology 2009; 54:820-8. [PMID: 19635101 DOI: 10.1111/j.1365-2559.2009.03301.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
AIMS The matrix metalloproteinase (MMP)/tissue inhibitor of metalloproteinase (TIMP) system has a major role in tumour invasion and metastasis. Roles in pathways involved in early tumour development are also being identified for this system, and the aim of this study was to define the expression profile of the major MMPs and TIMPs in colorectal polyp cancers. METHODS AND RESULTS The expression and cellular localization of individual MMPs and TIMPs was determined in colorectal polyp cancers by immunohistochemistry. All the MMPs and TIMPs showed immunoreactivity in carcinomatous epithelium. MMP1 (P < 0.001), MMP2 (P = 0.003), MMP3 (P = 0.004), TIMP1 (P = 0.01) and TIMP2 (P < 0.001) showed significant increases in immunoreactivity in carcinomatous epithelium compared with adenomatous epithelium. MMP7 showed immunoreactivity in carcinomatous epithelium, but showed no immunoreactivity in either normal epithelium or adenomatous epithelium. MMP and TIMP expression was limited in normal epithelium to MMP1, MMP2 and TIMP3. CONCLUSIONS This study defines the expression profile of MMPs and TIMPs in colorectal polyp cancers and shows that the increased expression of MMPs and TIMPs occurs at an early stage of colorectal neoplasia. It provides evidence to support the hypothesis that these molecules have a key involvement in the early stages of tumour development.
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Affiliation(s)
- Natalie Jeffery
- Department of Pathology, University of Aberdeen, Aberdeen, UK
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McLean MH, Murray GI, Fyfe N, Hold GL, Mowat NAG, El-Omar EM. COX-2 expression in sporadic colorectal adenomatous polyps is linked to adenoma characteristics. Histopathology 2008; 52:806-15. [PMID: 18462368 DOI: 10.1111/j.1365-2559.2008.03038.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIMS To assess cyclooxygenase-2 (COX-2) expression in sporadic colonic adenomas and to explore the association of COX-2 positivity with adenoma characteristics linked to increased risk of malignant transformation. METHODS AND RESULTS COX-2 expression and localization were assessed in 64 colorectal adenomas and 35 paired adjacent normal colonic mucosal biopsy specimens. The number of adenoma specimens was then extended to include polyps exhibiting an increasing degree of epithelial dysplasia. Forty colonic hyperplastic polyps were also identified from the pathology diagnostic database and included in the analysis. Immunohistochemistry was performed with the Envision+ peroxidase-linked biotin-free system incorporating a signal amplification step. There was a statistically significant increase in COX-2 expression in colonic polyps compared with paired adjacent normal mucosa, chi(2) = 40.1, P = 0.001. The probability of COX-2 expression increased along with increasing adenoma size and increasing degree of epithelial dysplasia. Fifty-five per cent of the hyperplastic polyp specimens expressed COX-2. CONCLUSIONS This study associates COX-2 epithelial expression with a number of adenoma characteristics that convey an increased risk of malignant transformation. This is in keeping with a positive role for COX-2 in early colorectal carcinogenesis.
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Affiliation(s)
- M H McLean
- GI Research Group, Department of Medicine & Therapeutics, University of Aberdeen, Aberdeen, UK
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McLean MH, Ryan WT, Hearn DJ. Comparison of the Beckman oxygen rate glucose method to a national reference and other methods. Am J Med Technol 1977; 43:164-6. [PMID: 835613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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McLean MH, Gallwas J. Detection of substrate depletion using the Trayser-Seligson enzyme assay. Clin Chim Acta 1974; 54:399-402. [PMID: 4412743 DOI: 10.1016/0009-8981(74)90261-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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McLean MH, Gallwas J, Hendrixson M. Evaluation of an automated creatininase creatinine procedure. Clin Chem 1973; 19:623-5. [PMID: 4705181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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