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Yuan C, Zeng L, Duan H, Suksatit B. Meta-analysis of the prognostic value of serum carcinoembryonic antigen in patients with colorectal cancer liver metastases after hepatectomy. Eur J Cancer Prev 2024; 33:334-346. [PMID: 37997904 DOI: 10.1097/cej.0000000000000859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
OBJECTIVES Carcinoembryonic antigen (CEA) is a broad-spectrum tumor marker for differential diagnosis, monitoring, and response assessment of a variety of malignancies. This meta-analysis was aimed at evaluating whether serum CEA could predict the prognosis in patients with colorectal cancer liver metastasis (CRCLM) before and after liver resection (LR). METHODS PubMed, Embase, Cochrane, and Web of Science were systematically searched to retrieve literature, with a search cutoff date of 27 February 2023. Articles were strictly screened for inclusion according to pre-specified inclusion and exclusion criteria. Data were pooled and analyzed using Stata 16.0. RESULTS This meta-analysis included 36 studies involving a total of 11 143 CRCLM patients. The results showed that a high pre-LR serum CEA level was correlated with poor overall survival (OS: HR = 1.61, 95% CI = 1.49-1.75, P < 0.001) and recurrence-free survival (RFS: HR = 1.27, 95% CI = 1.11-1.45, P < 0.001) in CRCLM patients. A high post-LR serum CEA level predicted poor overall survival (OS: HR = 2.66, 95% CI = 2.10-3.38, P < 0.001). CONCLUSION High preoperative and postoperative serum CEA levels in patients with CRCLM were significantly associated with poor prognosis, independent of treatment modality, mode of analysis, case origin, and cutoff value classification.
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Affiliation(s)
- Chenzhao Yuan
- Faculty of Nursing, Chiang Mai University, Chiang Mai, Thailand
| | - Lumin Zeng
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Hongxiang Duan
- Faculty of Nursing, Chiang Mai University, Chiang Mai, Thailand
- School of Nursing, Chengdu University, Chengdu, China
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2
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Tang F, Huang CW, Tang ZH, Lu SL, Bai T, Huang Q, Li XZ, Zhang B, Wu FX. Prognostic role of serum carcinoembryonic antigen in patients receiving liver resection for colorectal cancer liver metastasis: A meta-analysis. World J Gastrointest Surg 2023; 15:2890-2906. [PMID: 38222018 PMCID: PMC10784827 DOI: 10.4240/wjgs.v15.i12.2890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/03/2023] [Accepted: 11/28/2023] [Indexed: 12/27/2023] Open
Abstract
BACKGROUND Carcinoembryonic antigen (CEA) is a broad-spectrum tumor marker for differential diagnosis, monitoring, and response assessment of a variety of malignancies. AIM To evaluate whether serum CEA could predict the prognosis in patients with colorectal cancer liver metastasis (CRCLM) before and after liver resection (LR). METHODS PubMed, Embase, Cochrane, and Web of Science were systematically searched to retrieve literature, with a search cut-off date of February 27, 2023. Articles were strictly screened for inclusion according to pre-specified inclusion and exclusion criteria. Data were pooled and analyzed using Stata 16.0. RESULTS This meta-analysis included 36 studies involving a total of 11143 CRCLM patients. The results showed that a high pre-LR serum CEA level was correlated with poor overall survival (OS) [hazard ratio (HR) = 1.61, 95% confidence interval (CI): 1.49-1.75, P < 0.001] and recurrence-free survival (HR = 1.27, 95%CI: 1.11-1.45, P < 0.001) in CRCLM patients. A high post-LR serum CEA level predicted poor OS (HR = 2.66, 95%CI: 2.10-3.38, P < 0.001). A comparison by treatment modality, analysis modality, patient source, and cutoff-value showed that overall, high preoperative and postoperative serum CEA levels remained correlated with a poor prognosis. CONCLUSION This study concluded that high pre-LR and post-LR serum CEA levels were significantly correlated with a poor prognosis in CRCLM patients.
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Affiliation(s)
- Fan Tang
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Cheng-Wen Huang
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Zhi-Hong Tang
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Shao-Long Lu
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Tao Bai
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Qing Huang
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Xing-Zhi Li
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Bin Zhang
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Fei-Xiang Wu
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, Guangxi Zhuang Autonomous Region, China
- Key Laboratory of High-Incidence-Tumor Prevention & Treatment, Ministry of Education, Nanning 530021, Guangxi Zhuang Autonomous Region, China
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3
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Jiang W, Lei Y, Peng C, Wu D, Wu J, Xu Y, Xia X. Recent advances in cancer cell bionic nanoparticles for tumour therapy. J Drug Target 2023; 31:1065-1080. [PMID: 37962304 DOI: 10.1080/1061186x.2023.2283838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 11/08/2023] [Indexed: 11/15/2023]
Abstract
Nanoparticle-based drug delivery systems have found extensive use in delivering oncology therapeutics; however, some delivery vehicles still exhibit rapid immune clearance, lack of biocompatibility and insufficient targeting. In recent years, bionanoparticles constructed from tumour cell membranes have gained momentum as tumour-targeting therapeutic agents. Cancer cell membrane-coated nanoparticles (CCMCNPs) typically consist of a drug-loaded nanoparticle core coated with cancer cell membrane. CCMCNPs retain homologous tumour cell surface antigens, receptors and proteins, and it has been shown that the modified nanoparticles exhibit better homologous targeting, immune escape and biocompatibility. CCMCNPs are now widely used in a variety of cancer treatments, including photothermal, photodynamic and sonodynamic therapies, chemotherapy, immunotherapy, chemodynamical therapy or other combination therapies. This article presents different therapeutic approaches using multimodal antitumour therapy-combination of two or more therapies that treat tumours synergistically-based on tumour cell membrane systems. The advantages of CCMCNPs in different cancer treatments in recent years are summarised, thus, providing new strategies for cancer treatment research.
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Affiliation(s)
- Wanting Jiang
- Laboratory of Key Technologies of Targeted and Compound Preparations of Traditional Chinese Medicine, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Yujing Lei
- Laboratory of Key Technologies of Targeted and Compound Preparations of Traditional Chinese Medicine, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Cheng Peng
- Laboratory of Key Technologies of Targeted and Compound Preparations of Traditional Chinese Medicine, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Donghai Wu
- Laboratory of Key Technologies of Targeted and Compound Preparations of Traditional Chinese Medicine, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Jing Wu
- Laboratory of Key Technologies of Targeted and Compound Preparations of Traditional Chinese Medicine, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Yiling Xu
- Laboratory of Key Technologies of Targeted and Compound Preparations of Traditional Chinese Medicine, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Xinhua Xia
- Laboratory of Key Technologies of Targeted and Compound Preparations of Traditional Chinese Medicine, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
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4
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The Association of Carcinoembryonic Antigen (CEA) and Air Pollutants—A Population-Based Study. ATMOSPHERE 2022. [DOI: 10.3390/atmos13030466] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Air pollutants are substances in the air that have harmful effects on humans and the ecological environment. Although slight elevations in carcinoembryonic antigen (CEA) are commonly observed in apparently healthy persons, potential associations between CEA levels and chronic low-grade inflammation induced by air pollution have yet to be documented. We conducted a community-based cross-sectional study to estimate the association between short-term exposure to ambient air pollution and the CEA. A total of 9728 participants from health examinations were enrolled for the analysis and linked with their residential air pollutant data including ozone (O3), nitrogen dioxide (NO2), carbon monoxide (CO), sulphur dioxide (SO2), and particulate matter (PM10). The results showed that every increase of 1 ppm O3 significantly increased the mean differences of the CEA blood concentration by 0.005 ng/mL. Each increase of 1 ppm CO significantly reduced the mean differences of the CEA blood concentration by 0.455 ng/mL. Although smoking and alcohol drinking also increased the CEA levels, with adjustment of these confounders we identified a significant association between serum CEA in the general population and levels of the air pollutants O3 and CO. In conclusion, the serum CEA concentrations and short-term air pollutants O3 and CO exposure were found to have a significant relationship; however, its mechanism is still unclear. Moreover, long-term air pollution exposure and changes in CEA concentration still need to be further evaluated.
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5
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Kowalewski J, Paris T, Gonzalez C, Lelièvre E, Castaño Valencia L, Boutrois M, Augier C, Lutfalla G, Yatime L. Characterization of a member of the CEACAM protein family as a novel marker of proton pump-rich ionocytes on the zebrafish epidermis. PLoS One 2021; 16:e0254533. [PMID: 34252160 PMCID: PMC8274849 DOI: 10.1371/journal.pone.0254533] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/29/2021] [Indexed: 01/04/2023] Open
Abstract
In humans, several members of the CEACAM receptor family have been shown to interact with intestinal pathogens in an inflammatory context. While CEACAMs have long been thought to be only present in mammals, recent studies have identified ceacam genes in other vertebrates, including teleosts. The function of these related genes remains however largely unknown. To gain insight into the function of CEACAM proteins in fish, we undertook the study of a putative member of the family, CEACAMz1, identified in Danio rerio. Sequence analysis of the ceacamz1 gene product predicted a GPI-anchored extracellular protein containing eleven immunoglobulin domains but revealed no evident orthology with human CEACAMs. Using a combination of RT-PCR analyses and in situ hybridization experiments, as well as a fluorescent reporter line, we showed that CEACAMz1 is first expressed in discrete cells on the ventral skin of zebrafish larvae and later on in the developing gills. This distribution remains constant until juvenile stage is reached, at which point CEACAMz1 is almost exclusively expressed in gills. We further observed that at late larval stages, CEACAMz1-expressing cells mostly localize on the afferent side of the branchial filaments and possibly in the inter-lamellar space. Using immunolabelling and 3D-reconstructions, we showed that CEACAMz1 is expressed in cells from the uppermost layer of skin epidermis. These cells are embedded within the keratinocytes pavement and we unambiguously identified them as proton-pump rich ionocytes (HR cells). As the expression of ceacamz1 is turned on concomitantly to that of other known markers of HR cells, we propose that ceacamz1 may serve as a novel marker of mature HR cells from the zebrafish epidermis.
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Affiliation(s)
- Julien Kowalewski
- Laboratory of Pathogen-Host Interactions (LPHI), UMR5235, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Théo Paris
- Laboratory of Pathogen-Host Interactions (LPHI), UMR5235, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Catherine Gonzalez
- Laboratory of Pathogen-Host Interactions (LPHI), UMR5235, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Etienne Lelièvre
- Laboratory of Pathogen-Host Interactions (LPHI), UMR5235, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Lina Castaño Valencia
- Laboratory of Pathogen-Host Interactions (LPHI), UMR5235, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Morgan Boutrois
- Laboratory of Pathogen-Host Interactions (LPHI), UMR5235, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Camille Augier
- Laboratory of Pathogen-Host Interactions (LPHI), UMR5235, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Georges Lutfalla
- Laboratory of Pathogen-Host Interactions (LPHI), UMR5235, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Laure Yatime
- Laboratory of Pathogen-Host Interactions (LPHI), UMR5235, University of Montpellier, CNRS, INSERM, Montpellier, France
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Klingler F, Mathias S, Schneider H, Buck T, Raab N, Zeh N, Shieh YW, Pfannstiel J, Otte K. Unveiling the CHO surfaceome: Identification of cell surface proteins reveals cell aggregation-relevant mechanisms. Biotechnol Bioeng 2021; 118:3015-3028. [PMID: 33951178 DOI: 10.1002/bit.27811] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/07/2021] [Accepted: 04/25/2021] [Indexed: 01/12/2023]
Abstract
Chinese hamster ovary (CHO) suspension cells are the main production hosts for biopharmaceuticals. For the improvement of production processes, it is essential to understand the interaction between CHO cells and their microenvironment. While the cellular membrane is the crucial surface barrier between the inner and outer cell compartments, the subgroup of cell surface proteins (surfaceome) is of particular interest due to its potential to react to external factors and initiate cell communication and interaction pathways. Therefore, the CHO surfaceome was explored for the first time by enriching exposed N-glycosylated membrane proteins before tandem mass spectrometry (MS/MS) analyses, identifying a total of 449 surface proteins, including 34 proteins specific for production cells. Functional annotation and classification located most proteins to the cell surface belonging mainly to the protein classes of receptors, enzymes, and transporters. In addition, adhesion molecules as cadherins, integrins, Ig superfamily and extracellular matrix (ECM) proteins as collagens, laminins, thrombospondin, fibronectin, and tenascin were significantly enriched, which are involved in mechanisms for the formation of cell junctions, cell-cell and cell-ECM adhesion as focal adhesions. As cell adhesion and aggregation counteracts scalable production of biopharmaceuticals, experimental validation confirmed differential expression of integrin β1 (ITGB1) and β3, CD44, laminin, and fibronectin on the surface of aggregation-prone CHO production cells. The subsequent modulation of the central interaction protein ITGB1 by small interfering RNA knockdown substantially counteracted cell aggregation pointing toward novel engineering routes for aggregation reduction in biopharmaceutical production cells and exemplifying the potential of the surfaceome for specified engineering strategies.
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Affiliation(s)
- Florian Klingler
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Biberach, Germany
| | - Sven Mathias
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Biberach, Germany.,Early Stage Bioprocess Development, Bioprocess Development Biologicals, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Helga Schneider
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Biberach, Germany
| | - Theresa Buck
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Biberach, Germany
| | - Nadja Raab
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Biberach, Germany
| | - Nikolas Zeh
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Biberach, Germany
| | - Yu-Wei Shieh
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Biberach, Germany
| | - Jens Pfannstiel
- Core Facility Mass Spectrometry, University of Hohenheim, Stuttgart, Germany
| | - Kerstin Otte
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Biberach, Germany
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7
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van Sorge NM, Bonsor DA, Deng L, Lindahl E, Schmitt V, Lyndin M, Schmidt A, Nilsson OR, Brizuela J, Boero E, Sundberg EJ, van Strijp JAG, Doran KS, Singer BB, Lindahl G, McCarthy AJ. Bacterial protein domains with a novel Ig-like fold target human CEACAM receptors. EMBO J 2021; 40:e106103. [PMID: 33522633 PMCID: PMC8013792 DOI: 10.15252/embj.2020106103] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 12/08/2020] [Accepted: 12/10/2020] [Indexed: 01/19/2023] Open
Abstract
Streptococcus agalactiae, also known as group B Streptococcus (GBS), is the major cause of neonatal sepsis in humans. A critical step to infection is adhesion of bacteria to epithelial surfaces. GBS adhesins have been identified to bind extracellular matrix components and cellular receptors. However, several putative adhesins have no host binding partner characterised. We report here that surface‐expressed β protein of GBS binds to human CEACAM1 and CEACAM5 receptors. A crystal structure of the complex showed that an IgSF domain in β represents a novel Ig‐fold subtype called IgI3, in which unique features allow binding to CEACAM1. Bioinformatic assessment revealed that this newly identified IgI3 fold is not exclusively present in GBS but is predicted to be present in adhesins from other clinically important human pathogens. In agreement with this prediction, we found that CEACAM1 binds to an IgI3 domain found in an adhesin from a different streptococcal species. Overall, our results indicate that the IgI3 fold could provide a broadly applied mechanism for bacteria to target CEACAMs.
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Affiliation(s)
- Nina M van Sorge
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Daniel A Bonsor
- Institute of Human Virology, University of Maryland School of Medicine, University of Maryland, Baltimore, MD, USA
| | - Liwen Deng
- Department of Immunology & Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Erik Lindahl
- Department of Biochemistry and Biophysics, Science for Life Laboratory, Stockholm University, Stockholm, Sweden
| | - Verena Schmitt
- Institute of Anatomy, Medical Faculty, University Duisburg-Essen, Essen, Germany
| | - Mykola Lyndin
- Institute of Anatomy, Medical Faculty, University Duisburg-Essen, Essen, Germany.,Department of Pathology, Sumy State University, Sumy, Ukraine
| | - Alexej Schmidt
- Department of Medical Biosciences, Umeå University, Pathology, Umeå, Sweden
| | - Olof R Nilsson
- Department of Laboratory Medicine, Division of Medical Microbiology, Lund University, Lund, Sweden
| | - Jaime Brizuela
- Department of Infectious Disease, MRC Centre for Molecular Bacteriology & Infection, Imperial College London, London, UK
| | - Elena Boero
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Eric J Sundberg
- Institute of Human Virology, University of Maryland School of Medicine, University of Maryland, Baltimore, MD, USA.,Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, USA
| | - Jos A G van Strijp
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Kelly S Doran
- Department of Immunology & Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Bernhard B Singer
- Institute of Anatomy, Medical Faculty, University Duisburg-Essen, Essen, Germany
| | - Gunnar Lindahl
- Department of Laboratory Medicine, Division of Medical Microbiology, Lund University, Lund, Sweden.,Department of Chemistry, Division of Applied Microbiology, Lund University, Lund, Sweden
| | - Alex J McCarthy
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.,Department of Infectious Disease, MRC Centre for Molecular Bacteriology & Infection, Imperial College London, London, UK
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8
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Biomimetic Upconversion Nanoparticles and Gold Nanoparticles for Novel Simultaneous Dual-Modal Imaging-Guided Photothermal Therapy of Cancer. Cancers (Basel) 2020; 12:cancers12113136. [PMID: 33120892 PMCID: PMC7692180 DOI: 10.3390/cancers12113136] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/21/2020] [Accepted: 10/23/2020] [Indexed: 01/10/2023] Open
Abstract
Multimodal imaging-guided near-infrared (NIR) photothermal therapy (PTT) is an interesting and promising cancer theranostic method. However, most of the multimodal imaging systems provide structural and functional information used for imaging guidance separately by directly combining independent imaging systems with different detectors, and many problems arise when trying to fuse different modal images that are serially taken by inviting extra markers or image fusion algorithms. Further, most imaging and therapeutic agents passively target tumors through the enhanced permeability and retention (EPR) effect, which leads to low utilization efficiency. To address these problems and systematically improve the performance of the imaging-guided PTT methodology, we report a novel simultaneous dual-modal imaging system combined with cancer cell membrane-coated nanoparticles as a platform for PTT-based cancer theranostics. A novel detector with the ability to detect both high-energy X-ray and low-energy visible light at the same time, as well as a dual-modal imaging system based on the detector, was developed for simultaneous dual-modal imaging. Cancer cell membrane-coated upconversion nanoparticles (CC-UCNPs) and gold nanoparticles (CC-AuNPs) with the capacity for immune evasion and active tumor targeting were engineered for highly specific imaging and high-efficiency PTT therapy. In vitro and in vivo evaluation of macrophage escape and active homologous tumor targeting were performed. Cancer cell membrane-coated nanoparticles (CC-NPs) displayed excellent immune evasion ability, longer blood circulation time, and higher tumor targeting specificity compared to normal PEGylated nanoparticles, which led to highly specific upconversion luminescence (UCL) imaging and PTT-based anti-tumor efficacy. The anti-cancer efficacy of the dual-modal imaging-guided PTT was also evaluated both in vitro and in vivo. Dual-modal imaging yielded precise anatomical and functional information for the PTT process, and complete tumor ablation was achieved with CC-AuNPs. Our biomimetic UCNP/AuNP and novel simultaneous dual-modal imaging combination could be a promising platform and methodology for cancer theranostics.
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Bonsignore P, Kuiper JWP, Adrian J, Goob G, Hauck CR. CEACAM3-A Prim(at)e Invention for Opsonin-Independent Phagocytosis of Bacteria. Front Immunol 2020; 10:3160. [PMID: 32117212 PMCID: PMC7026191 DOI: 10.3389/fimmu.2019.03160] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 12/31/2019] [Indexed: 01/15/2023] Open
Abstract
Phagocytosis is one of the key innate defense mechanisms executed by specialized cells in multicellular animals. Recent evidence suggests that a particular phagocytic receptor expressed by human polymorphonuclear granulocytes, the carcinoembryonic antigen-related cell adhesion molecule 3 (CEACAM3), is one of the fastest-evolving human proteins. In this focused review, we will try to resolve the conundrum why a conserved process such as phagocytosis is conducted by a rapidly changing receptor. Therefore, we will first summarize the biochemical and structural details of this immunoglobulin-related glycoprotein in the context of the human CEACAM family. The function of CEACAM3 for the efficient, opsonin-independent detection and phagocytosis of highly specialized, host-restricted bacteria will be further elaborated. Taking into account the decisive role of CEACAM3 in the interaction with pathogenic bacteria, we will discuss the evolutionary trajectory of the CEACAM3 gene within the primate lineage and highlight the consequences of CEACAM3 polymorphisms in human populations. From a synopsis of these studies, CEACAM3 emerges as an important component of human innate immunity and a prominent example of a dedicated receptor for professional phagocytosis.
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Affiliation(s)
- Patrizia Bonsignore
- Lehrstuhl Zellbiologie, Fachbereich Biologie, Universität Konstanz, Konstanz, Germany
| | - Johannes W P Kuiper
- Lehrstuhl Zellbiologie, Fachbereich Biologie, Universität Konstanz, Konstanz, Germany
| | - Jonas Adrian
- Lehrstuhl Zellbiologie, Fachbereich Biologie, Universität Konstanz, Konstanz, Germany
| | - Griseldis Goob
- Lehrstuhl Zellbiologie, Fachbereich Biologie, Universität Konstanz, Konstanz, Germany
| | - Christof R Hauck
- Lehrstuhl Zellbiologie, Fachbereich Biologie, Universität Konstanz, Konstanz, Germany.,Konstanz Research School Chemical Biology, Universität Konstanz, Konstanz, Germany
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10
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Matsumura Y, Ito Y, Mezawa Y, Sulidan K, Daigo Y, Hiraga T, Mogushi K, Wali N, Suzuki H, Itoh T, Miyagi Y, Yokose T, Shimizu S, Takano A, Terao Y, Saeki H, Ozawa M, Abe M, Takeda S, Okumura K, Habu S, Hino O, Takeda K, Hamada M, Orimo A. Stromal fibroblasts induce metastatic tumor cell clusters via epithelial-mesenchymal plasticity. Life Sci Alliance 2019; 2:2/4/e201900425. [PMID: 31331982 PMCID: PMC6653778 DOI: 10.26508/lsa.201900425] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 07/10/2019] [Accepted: 07/10/2019] [Indexed: 12/16/2022] Open
Abstract
This study highlights the cellular and molecular mechanisms by which stromal fibroblasts enable human breast cancer cells to form tumor cell clusters and acquire highly invasive and metastatic traits. Emerging evidence supports the hypothesis that multicellular tumor clusters invade and seed metastasis. However, whether tumor-associated stroma induces epithelial–mesenchymal plasticity in tumor cell clusters, to promote invasion and metastasis, remains unknown. We demonstrate herein that carcinoma-associated fibroblasts (CAFs) frequently present in tumor stroma drive the formation of tumor cell clusters composed of two distinct cancer cell populations, one in a highly epithelial (E-cadherinhiZEB1lo/neg: Ehi) state and another in a hybrid epithelial/mesenchymal (E-cadherinloZEB1hi: E/M) state. The Ehi cells highly express oncogenic cell–cell adhesion molecules, such as carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5) and CEACAM6 that associate with E-cadherin, resulting in increased tumor cell cluster formation and metastatic seeding. The E/M cells also retain associations with Ehi cells, which follow the E/M cells leading to collective invasion. CAF-produced stromal cell-derived factor 1 and transforming growth factor-β confer the Ehi and E/M states as well as invasive and metastatic traits via Src activation in apposed human breast tumor cells. Taken together, these findings indicate that invasive and metastatic tumor cell clusters are induced by CAFs via epithelial–mesenchymal plasticity.
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Affiliation(s)
- Yuko Matsumura
- Department of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan.,Department of Obstetrics and Gynecology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Yasuhiko Ito
- Department of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Yoshihiro Mezawa
- Department of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Kaidiliayi Sulidan
- Department of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan.,Department of Obstetrics and Gynecology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Yataro Daigo
- Center for Antibody and Vaccine Therapy, Research Hospital, Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,Department of Medical Oncology and Cancer Center, Shiga University of Medical Science, Otsu, Japan
| | - Toru Hiraga
- Department of Histology and Cell Biology, Matsumoto Dental University, Nagano, Japan
| | - Kaoru Mogushi
- Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Nadila Wali
- Department of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Hiromu Suzuki
- Department of Molecular Biology, School of Medicine, Sapporo Medical University, Hokkaido, Japan
| | - Takumi Itoh
- Department of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Yohei Miyagi
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Tomoyuki Yokose
- Department of Pathology, Kanagawa Cancer Center, Yokohama, Japan
| | - Satoru Shimizu
- Department of Breast and Endocrine Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Atsushi Takano
- Center for Antibody and Vaccine Therapy, Research Hospital, Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,Department of Medical Oncology and Cancer Center, Shiga University of Medical Science, Otsu, Japan
| | - Yasuhisa Terao
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Harumi Saeki
- Department of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Masayuki Ozawa
- Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Masaaki Abe
- Department of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Satoru Takeda
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Ko Okumura
- Atopy Research Center, Biomedical Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan.,Department of Biofunctional Microbiota, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Sonoko Habu
- Atopy Research Center, Biomedical Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan.,Department of Biofunctional Microbiota, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Okio Hino
- Department of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Kazuyoshi Takeda
- Division of Cell Biology, Biomedical Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan.,Department of Biofunctional Microbiota, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Michiaki Hamada
- Department of Electrical Engineering and Bioscience, Faculty of Science and Engineering, Waseda University, Tokyo, Japan
| | - Akira Orimo
- Department of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan .,Cancer Research (CR)-UK Stromal-Tumor Interaction Group, Paterson Institute for Cancer Research, The University of Manchester, Manchester, UK
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11
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Abdul-Wahid A, Cydzik M, Fischer NW, Prodeus A, Shively JE, Martel A, Alminawi S, Ghorab Z, Berinstein NL, Gariépy J. Serum-derived carcinoembryonic antigen (CEA) activates fibroblasts to induce a local re-modeling of the extracellular matrix that favors the engraftment of CEA-expressing tumor cells. Int J Cancer 2018; 143:1963-1977. [PMID: 29756328 DOI: 10.1002/ijc.31586] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 04/04/2018] [Accepted: 04/18/2018] [Indexed: 12/21/2022]
Abstract
Elevated levels of the carcinoembryonic antigen (CEA; CEACAM5) in the serum of colorectal cancer (CRC) patients represent a clinical biomarker that correlates with disease recurrence. However, a mechanistic role for soluble CEA (sCEA) in tumor progression and metastasis remains to be established. In our study, we report that sCEA acts as a paracrine factor, activating human fibroblasts by signaling through both the STAT3 and AKT1-mTORC1 pathways, promoting their transition to a cancer-associated fibroblast (CaF) phenotype. sCEA-activated fibroblasts express and secrete higher levels of fibronectin, including cellular EDA+ -fibronectin (Fn-EDA) that selectively promote the implantation and adherence of CEA-expressing cancer cells. Immunohistochemical analyses of liver tissues derived from CRC patients with elevated levels of sCEA reveal that the expression of cellular Fn-EDA co-registers with CEA-expressing liver metastases. Taken together, these findings indicate a direct role for sCEA as a human fibroblast activation factor, in priming target tissues for the engraftment of CEA-expressing cancer cells, through the differentiation of tissue-resident fibroblasts, resulting in a local change in composition of the extracellular matrix.
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Affiliation(s)
- Aws Abdul-Wahid
- Departments of Medical Biophysics and Pharmaceutical Sciences, University of Toronto, Toronto, ON, Canada.,Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Marzena Cydzik
- Departments of Medical Biophysics and Pharmaceutical Sciences, University of Toronto, Toronto, ON, Canada.,Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Nicholas W Fischer
- Departments of Medical Biophysics and Pharmaceutical Sciences, University of Toronto, Toronto, ON, Canada.,Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Aaron Prodeus
- Departments of Medical Biophysics and Pharmaceutical Sciences, University of Toronto, Toronto, ON, Canada.,Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - John E Shively
- Department of Immunology, Beckman Research Institute, City of Hope, Duarte, CA
| | - Anne Martel
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Samira Alminawi
- Department of Anatomic Pathology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, CANADA
| | - Zeina Ghorab
- Department of Anatomic Pathology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, CANADA
| | | | - Jean Gariépy
- Departments of Medical Biophysics and Pharmaceutical Sciences, University of Toronto, Toronto, ON, Canada.,Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
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12
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Tan RPA, Leshchyns'ka I, Sytnyk V. Glycosylphosphatidylinositol-Anchored Immunoglobulin Superfamily Cell Adhesion Molecules and Their Role in Neuronal Development and Synapse Regulation. Front Mol Neurosci 2017; 10:378. [PMID: 29249937 PMCID: PMC5715320 DOI: 10.3389/fnmol.2017.00378] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 10/30/2017] [Indexed: 01/01/2023] Open
Abstract
Immunoglobulin superfamily (IgSF) cell adhesion molecules (CAMs) are cell surface glycoproteins that not only mediate interactions between neurons but also between neurons and other cells in the nervous system. While typical IgSF CAMs are transmembrane molecules, this superfamily also includes CAMs, which do not possess transmembrane and intracellular domains and are instead attached to the plasma membrane via a glycosylphosphatidylinositol (GPI) anchor. In this review, we focus on the role GPI-anchored IgSF CAMs have as signal transducers and ligands in neurons, and discuss their functions in regulation of neuronal development, synapse formation, synaptic plasticity, learning, and behavior. We also review the links between GPI-anchored IgSF CAMs and brain disorders.
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Affiliation(s)
- Rui P A Tan
- School of Biotechnology and Biomolecular Sciences, The University of New South Wales, Sydney, NSW, Australia
| | - Iryna Leshchyns'ka
- School of Biotechnology and Biomolecular Sciences, The University of New South Wales, Sydney, NSW, Australia
| | - Vladimir Sytnyk
- School of Biotechnology and Biomolecular Sciences, The University of New South Wales, Sydney, NSW, Australia
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13
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Kwon YJ, Lee HS, Shim JY, Lee YJ. Serum carcinoembryonic antigen is positively associated with leukocyte count in Korean adults. J Clin Lab Anal 2017; 32. [PMID: 28653772 DOI: 10.1002/jcla.22291] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 06/05/2017] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Emerging evidence shows that serum carcinoembryonic antigen (CEA) levels may modestly be increased in non-neoplastic conditions such as cardiometabolic diseases, which are increasingly being seen as inflammatory diseases. Leukocyte count is widely evaluated marker of inflammation in clinical practice and a useful predictor of cardiometabolic disease. In this study, we aimed to determine the relationship between serum CEA levels and leukocyte counts in Korean adults. METHODS This cross-sectional study included a total of 19 834 individuals enrolled from a health promotion center between November 2006 and July 2010. Multiple linear regression analysis was performed to investigate the association between serum CEA levels and leukocyte counts after adjusting for confounding variables. RESULTS According to both stepwise-method and enter-method multiple linear regression analyses, serum CEA levels were positively and independently associated with leukocyte counts (P<.001) after adjusting for age, sex, body mass index, systolic blood pressure, diastolic blood pressure, total cholesterol, triglyceride, HDL-cholesterol, cigarette smoking, alcohol ingestion, physical activity, diabetes mellitus, and anti-inflammatory drugs. CONCLUSIONS We demonstrate a positive relationship between serum CEA levels and leukocyte counts in Korean adults. Our results suggested that an elevated serum CEA level may reflect chronic inflammation state.
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Affiliation(s)
- Yu-Jin Kwon
- Department of Family Medicine, Yong-in Severance Hospital, Yonsei University College of Medicine, Yong-in, Korea.,Department of Medicine, Gradauate School of Yonsei University College of Medicine, Seoul, Korea
| | - Hye-Sun Lee
- Biostatistics Collaboration Units, Department of Research Affairs, Yonsei University College of Medicine, Seoul, Korea
| | - Jae-Yong Shim
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yong-Jae Lee
- Department of Family Medicine, Gangam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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14
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The Roles of Carcinoembryonic Antigen in Liver Metastasis and Therapeutic Approaches. Gastroenterol Res Pract 2017; 2017:7521987. [PMID: 28588612 PMCID: PMC5447280 DOI: 10.1155/2017/7521987] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 04/16/2017] [Indexed: 12/22/2022] Open
Abstract
Metastasis is a highly complicated and sequential process in which primary cancer spreads to secondary organic sites. Liver is a well-known metastatic organ from colorectal cancer. Carcinoembryonic antigen (CEA) is expressed in most gastrointestinal, breast, and lung cancer cells. Overexpression of CEA is closely associated with liver metastasis, which is the main cause of death from colorectal cancer. CEA is widely used as a diagnostic and prognostic tumor marker in cancer patients. It affects many steps of liver metastasis from colorectal cancer cells. CEA inhibits circulating cancer cell death. CEA also binds to heterogeneous nuclear RNA binding protein M4 (hnRNP M4), a Kupffer cell receptor protein, and activates Kupffer cells to secrete various cytokines that change the microenvironments for the survival of colorectal cancer cells in the liver. CEA also activates cell adhesion-related molecules. The close correlation between CEA and cancer has spurred the exploration of many CEA-targeted approaches as anticancer therapeutics. Understanding the detailed functions and mechanisms of CEA in liver metastasis will provide great opportunities for the improvement of anticancer approaches against colorectal cancers. In this report, the roles of CEA in liver metastasis and CEA-targeting anticancer modalities are reviewed.
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15
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Xia J, Cheng Y, Zhang H, Li R, Hu Y, Liu B. The role of adhesions between homologous cancer cells in tumor progression and targeted therapy. Expert Rev Anticancer Ther 2017; 17:517-526. [DOI: 10.1080/14737140.2017.1322511] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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16
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Zhuo Y, Yang JY, Moremen KW, Prestegard JH. Glycosylation Alters Dimerization Properties of a Cell-surface Signaling Protein, Carcinoembryonic Antigen-related Cell Adhesion Molecule 1 (CEACAM1). J Biol Chem 2016; 291:20085-95. [PMID: 27471271 DOI: 10.1074/jbc.m116.740050] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Indexed: 12/12/2022] Open
Abstract
Human carcinoembryonic antigen-related cell adhesion molecule 1 (C?/Au: EACAM1) is a cell-surface signaling molecule involved in cell adhesion, proliferation, and immune response. It is also implicated in cancer angiogenesis, progression, and metastasis. This diverse set of effects likely arises as a result of the numerous homophilic and heterophilic interactions that CEACAM1 can have with itself and other molecules. Its N-terminal Ig variable (IgV) domain has been suggested to be a principal player in these interactions. Previous crystal structures of the β-sandwich-like IgV domain have been produced using Escherichia coli-expressed material, which lacks native glycosylation. These have led to distinctly different proposals for dimer interfaces, one involving interactions of ABED β-strands and the other involving GFCC'C″ β-strands, with the former burying one prominent glycosylation site. These structures raise questions as to which form may exist in solution and what the effect of glycosylation may have on this form. Here, we use NMR cross-correlation measurements to examine the effect of glycosylation on CEACAM1-IgV dimerization and use residual dipolar coupling (RDC) measurements to characterize the solution structure of the non-glycosylated form. Our findings demonstrate that even addition of a single N-linked GlcNAc at potential glycosylation sites inhibits dimer formation. Surprisingly, RDC data collected on E. coli expressed material in solution indicate that a dimer using the non-glycosylated GFCC'C″ interface is preferred even in the absence of glycosylation. The results open new questions about what other factors may facilitate dimerization of CEACAM1 in vivo, and what roles glycosylation may play in heterophylic interactions.
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Affiliation(s)
- You Zhuo
- From the Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602
| | - Jeong-Yeh Yang
- From the Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602
| | - Kelley W Moremen
- From the Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602
| | - James H Prestegard
- From the Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602
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17
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Tobi M, Thomas P, Ezekwudo D. Avoiding hepatic metastasis naturally: Lessons from the cotton top tamarin (Saguinus oedipus). World J Gastroenterol 2016; 22:5479-94. [PMID: 27350726 PMCID: PMC4917608 DOI: 10.3748/wjg.v22.i24.5479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 04/26/2016] [Accepted: 05/21/2016] [Indexed: 02/06/2023] Open
Abstract
Much has been written about hepatic metastasis and animal models abound. In terms of the human experience, progress in treating this final common pathway, a terminal event of many human malignancies has been relatively slow. The current thinking is that primary prevention is best served by early detection of cancer and eradication of early stage cancers by screening. Some cancers spread early in their course and the role of screening may be limited. Until relatively recently there has not been a pathfinder model that makes the evasion of this unfortunate event a reality. This review discusses such an animal model and attempts to relate it to human disease in terms of intervention. Concrete proposals are also offered on how scientists may be able to intervene to prevent this deadly progression of the cancer process.
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18
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Rao L, Bu LL, Cai B, Xu JH, Li A, Zhang WF, Sun ZJ, Guo SS, Liu W, Wang TH, Zhao XZ. Cancer Cell Membrane-Coated Upconversion Nanoprobes for Highly Specific Tumor Imaging. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:3460-6. [PMID: 26970518 DOI: 10.1002/adma.201506086] [Citation(s) in RCA: 330] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Indexed: 05/18/2023]
Abstract
Cancer cell membrane-coated upconversion nanoprobes (CC-UCNPs) with immune escape and homologous targeting capabilities are used for highly specific tumor imaging. The combination of UCNPs with biomimetic cancer cell membranes embodies a novel materials design strategy and presents a compelling class of advanced materials.
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Affiliation(s)
- Lang Rao
- Key Laboratory of Artificial Micro- and Nano-Structuresof Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei, 430072, China
| | - Lin-Lin Bu
- Department of Oral Maxillofacial Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, 430079, China
| | - Bo Cai
- Key Laboratory of Artificial Micro- and Nano-Structuresof Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei, 430072, China
| | - Jun-Hua Xu
- Key Laboratory of Artificial Micro- and Nano-Structuresof Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei, 430072, China
| | - Andrew Li
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
| | - Wen-Feng Zhang
- Department of Oral Maxillofacial Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, 430079, China
| | - Zhi-Jun Sun
- Department of Oral Maxillofacial Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, 430079, China
| | - Shi-Shang Guo
- Key Laboratory of Artificial Micro- and Nano-Structuresof Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei, 430072, China
| | - Wei Liu
- Key Laboratory of Artificial Micro- and Nano-Structuresof Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei, 430072, China
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Tza-Huei Wang
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Xing-Zhong Zhao
- Key Laboratory of Artificial Micro- and Nano-Structuresof Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei, 430072, China
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19
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Bonsor DA, Günther S, Beadenkopf R, Beckett D, Sundberg EJ. Diverse oligomeric states of CEACAM IgV domains. Proc Natl Acad Sci U S A 2015; 112:13561-6. [PMID: 26483485 PMCID: PMC4640789 DOI: 10.1073/pnas.1509511112] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Carcinoembryonic antigen-related cell adhesion molecules (CEACAMs) comprise a large family of cell surface adhesion molecules that bind to themselves and other family members to carry out numerous cellular functions, including proliferation, signaling, differentiation, tumor suppression, and survival. They also play diverse and significant roles in immunity and infection. The formation of CEACAM oligomers is caused predominantly by interactions between their N-terminal IgV domains. Although X-ray crystal structures of CEACAM IgV domain homodimers have been described, how CEACAMs form heterodimers or remain monomers is poorly understood. To address this key aspect of CEACAM function, we determined the crystal structures of IgV domains that form a homodimeric CEACAM6 complex, monomeric CEACAM8, and a heterodimeric CEACAM6-CEACAM8 complex. To confirm and quantify these interactions in solution, we used analytical ultracentrifugation to measure the dimerization constants of CEACAM homodimers and isothermal titration calorimetry to determine the thermodynamic parameters and binding affinities of CEACAM heterodimers. We found the CEACAM6-CEACAM8 heterodimeric state to be substantially favored energetically relative to the CEACAM6 homodimer. Our data provide a molecular basis for the adoption of the diverse oligomeric states known to exist for CEACAMs and suggest ways in which CEACAM6 and CEACAM8 regulate the biological functions of one another, as well as of additional CEACAMs with which they interact, both in cis and in trans.
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Affiliation(s)
- Daniel A Bonsor
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201
| | - Sebastian Günther
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201
| | - Robert Beadenkopf
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201
| | - Dorothy Beckett
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742
| | - Eric J Sundberg
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201; Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201; Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201
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20
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Tchoupa AK, Schuhmacher T, Hauck CR. Signaling by epithelial members of the CEACAM family - mucosal docking sites for pathogenic bacteria. Cell Commun Signal 2014; 12:27. [PMID: 24735478 PMCID: PMC4057559 DOI: 10.1186/1478-811x-12-27] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 03/24/2014] [Indexed: 11/22/2022] Open
Abstract
Carcinoembryonic antigen-related cell adhesion molecules (CEACAMs) comprise a group of immunoglobulin-related vertebrate glycoproteins. Several family members, including CEACAM1, CEA, and CEACAM6, are found on epithelial tissues throughout the human body. As they modulate diverse cellular functions, their signaling capacity is in the focus of current research. In this review we will summarize the knowledge about common signaling processes initiated by epithelial CEACAMs and suggest a model of signal transduction by CEACAM family members lacking significant cytoplasmic domains. As pathogenic and non-pathogenic bacteria exploit these receptors during mucosal colonization, we try to highlight the connection between CEACAMs, microbes, and cellular responses. Special emphasis in this context is placed on the functional interplay between CEACAMs and integrins that influences matrix adhesion of epithelial cells. The cooperation between these two receptor families provides an intriguing example of the fine tuning of cellular responses and their manipulation by specialized microorganisms.
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Affiliation(s)
| | | | - Christof R Hauck
- Lehrstuhl für Zellbiologie, Universität Konstanz, 78457 Konstanz, Germany.
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21
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Fang R, Hu CMJ, Luk BT, Gao W, Copp JA, Tai Y, O’Connor DE, Zhang L. Cancer cell membrane-coated nanoparticles for anticancer vaccination and drug delivery. NANO LETTERS 2014; 14:2181-8. [PMID: 24673373 PMCID: PMC3985711 DOI: 10.1021/nl500618u] [Citation(s) in RCA: 926] [Impact Index Per Article: 92.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 03/23/2014] [Indexed: 05/17/2023]
Abstract
Cell-derived nanoparticles have been garnering increased attention due to their ability to mimic many of the natural properties displayed by their source cells. This top-down engineering approach can be applied toward the development of novel therapeutic strategies owing to the unique interactions enabled through the retention of complex antigenic information. Herein, we report on the biological functionalization of polymeric nanoparticles with a layer of membrane coating derived from cancer cells. The resulting core-shell nanostructures, which carry the full array of cancer cell membrane antigens, offer a robust platform with applicability toward multiple modes of anticancer therapy. We demonstrate that by coupling the particles with an immunological adjuvant, the resulting formulation can be used to promote a tumor-specific immune response for use in vaccine applications. Moreover, we show that by taking advantage of the inherent homotypic binding phenomenon frequently observed among tumor cells the membrane functionalization allows for a unique cancer targeting strategy that can be utilized for drug delivery applications.
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22
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Abdul-Wahid A, Huang EHB, Cydzik M, Bolewska-Pedyczak E, Gariépy J. The carcinoembryonic antigen IgV-like N domain plays a critical role in the implantation of metastatic tumor cells. Mol Oncol 2013; 8:337-50. [PMID: 24388361 DOI: 10.1016/j.molonc.2013.12.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 12/06/2013] [Indexed: 01/06/2023] Open
Abstract
The human carcinoembryonic antigen (CEA) is a cell adhesion molecule involved in both homotypic and heterotypic interactions. The aberrant overexpression of CEA on adenocarcinoma cells correlates with their increased metastatic potential. Yet, the mechanism(s) by which its adhesive properties can lead to the implantation of circulating tumor cells and expansion of metastatic foci remains to be established. In this study, we demonstrate that the IgV-like N terminal domain of CEA directly participates in the implantation of cancer cells through its homotypic and heterotypic binding properties. Specifically, we determined that the recombinant N terminal domain of CEA directly binds to fibronectin (Fn) with a dissociation constant in the nanomolar range (K(D) 16 ± 3 nM) and interacts with itself (K(D) 100 ± 17 nM) and more tightly to the IgC-like A(3) domain (K(D) 18 ± 3 nM). Disruption of these molecular associations through the addition of antibodies specific to the CEA N or A(3)B(3) domains, or by adding soluble recombinant forms of the CEA N, A(3) or A(3)B(3) domains or a peptide corresponding to residues 108-115 of CEA resulted in the inhibition of CEA-mediated intercellular aggregation and adherence events in vitro. Finally, pretreating CEA-expressing murine colonic carcinoma cells (MC38.CEA) with rCEA N, A3 or A(3)B(3) modules blocked their implantation and the establishment of tumor foci in vivo. Together, these results suggest a new mechanistic insight into how the CEA IgV-like N domain participates in cellular events that can have a macroscopic impact in terms of cancer progression and metastasis.
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Affiliation(s)
- Aws Abdul-Wahid
- Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario, Canada M4N 3M5; Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada; Department of Pharmaceutical Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Eric H-B Huang
- Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario, Canada M4N 3M5
| | - Marzena Cydzik
- Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario, Canada M4N 3M5; Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada; Department of Pharmaceutical Sciences, University of Toronto, Toronto, Ontario, Canada
| | | | - Jean Gariépy
- Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, Ontario, Canada M4N 3M5; Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada; Department of Pharmaceutical Sciences, University of Toronto, Toronto, Ontario, Canada.
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23
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Hatakeyama K, Wakabayashi-Nakao K, Ohshima K, Sakura N, Yamaguchi K, Mochizuki T. Novel protein isoforms of carcinoembryonic antigen are secreted from pancreatic, gastric and colorectal cancer cells. BMC Res Notes 2013; 6:381. [PMID: 24070190 PMCID: PMC3850884 DOI: 10.1186/1756-0500-6-381] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Accepted: 09/24/2013] [Indexed: 12/23/2022] Open
Abstract
Background Carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5) is an oncofetal cell surface glycoprotein. Because of its high expression in cancer cells and secretion into serum, CEA has been widely used as a serum tumor marker. Although other members of CEACAM family were investigated for splice variants/variants-derived protein isoforms, few studies about the variants of CEACAM5 have been reported. In this study, we demonstrated the existence of novel CEACAM5 splice variants and splice variant-derived protein isoforms in gastrointestinal cancer cell lines. Results We identified two novel CEACAM5 splice variants in gastrointestinal (pancreatic, gastric, and colorectal) cancer cell lines. One of the variants possessed an alternative minor splice site that allowed generation of GC-AG intron. Furthermore, CEA protein isoforms derived from the novel splice variants were expressed in cancer cell lines and those protein isoforms were secreted into the culture medium. Although CEA protein isoforms always co-existed with the full-length protein, the secretion patterns of these isoforms did not correlate with the expression patterns. Conclusions This is the first study to identify the expression of CEA isoforms derived from the novel splice variants processed on the unique splice site. In addition, we also revealed the secretion of those isoforms from gastrointestinal cancer cell lines. Our findings suggested that discrimination between the full-length and identified protein isoforms may improve the clinical utility of CEA as a tumor marker.
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Affiliation(s)
- Keiichi Hatakeyama
- Medical Genetics Division, Shizuoka Cancer Center Research Institute, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka 411-8777, Japan.
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24
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Beauchemin N, Arabzadeh A. Carcinoembryonic antigen-related cell adhesion molecules (CEACAMs) in cancer progression and metastasis. Cancer Metastasis Rev 2013; 32:643-71. [DOI: 10.1007/s10555-013-9444-6] [Citation(s) in RCA: 288] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Orava EW, Abdul-Wahid A, Huang EHB, Mallick AI, Gariépy J. Blocking the attachment of cancer cells in vivo with DNA aptamers displaying anti-adhesive properties against the carcinoembryonic antigen. Mol Oncol 2013; 7:799-811. [PMID: 23656757 DOI: 10.1016/j.molonc.2013.03.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 03/27/2013] [Accepted: 03/31/2013] [Indexed: 01/28/2023] Open
Abstract
The formation of metastatic foci occurs through a series of cellular events, initiated by the attachment and aggregation of cancer cells leading to the establishment of micrometastases. We report the derivation of synthetic DNA aptamers bearing anti-adhesive properties directed at cancer cells expressing the carcinoembryonic antigen (CEA). Two DNA aptamers targeting the homotypic and heterotypic IgV-like binding domain of CEA were shown to block the cell adhesion properties of CEA, while not recognizing other IgV-like domains of CEACAM family members that share strong sequence and structural homologies. More importantly, the pre-treatment of CEA-expressing tumour cells with these aptamers prior to their intraperitoneal implantation resulted in the prevention of peritoneal tumour foci formation. Taken together, these results highlight the effectiveness of targeting the cell adhesion properties of cancer cells with aptamers in preventing tumour implantation.
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Affiliation(s)
- Erik W Orava
- Department of Pharmaceutical Sciences, University of Toronto, Toronto, Ontario, Canada
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Rao US, Hoerster NS, Thirumala S, Rao PS. The influence of metastatic site on the expression of CEA and cellular localization of β-catenin in colorectal cancer. J Gastroenterol Hepatol 2013; 28:505-12. [PMID: 23216017 DOI: 10.1111/jgh.12083] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/21/2012] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND AIM The usefulness of carcinoembryonic antigen (CEA) in the diagnosis and prognosis of colorectal cancer (CRC) is unclear. The aim was to analyze changes in the expression of CEA during CRC progression and metastasis, so as to determine the influence of tumor metastatic organ on the CEA expression by CRC cells. METHODS The human biopsies of adenocarcinomas in colon and CRC liver and lung metastases were analyzed by immunohistochemistry for the expression of CEA. Expression of E-cadherin and β-catenin was also analyzed to localize the CRC neoplastic glands in metastatic tissues. RESULTS The CRC neoplastic glands in colon and liver expressed significantly higher amount of CEA compared with crypts in normal colon. In contrast, CRC neoplastic glands formed in lung expressed low CEA level. However, CEA expression was high in areas of tumor necrosis in lung. E-cadherin and β-catenin were cell membrane-bound in normal crypts and CRC neoplastic glands in colon and liver. Although these two proteins were also cell membrane-bound in a majority of CRC neoplastic glands in lungs, a significant proportion of these expressed β-catenin in the nucleus, which lacked either E-cadherin or β-catenin at the cell membrane. CONCLUSION Our findings indicate that lung microenvironment is unique in that it suppresses the expression of CEA by CRC cells forming neoplastic glands. In addition, lung microenvironment promotes nuclear localization of β-catenin, suggesting that the Wnt signaling pathway is relatively active highly in CRC metastasized to lung, when compared with liver or colon.
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Affiliation(s)
- U Subrahmanyeswara Rao
- Department of Biomedical Sciences, Texas Tech University Health Sciences Center, Amarillo, USA
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Abdul-Wahid A, Huang EHB, Lu H, Flanagan J, Mallick AI, Gariépy J. A focused immune response targeting the homotypic binding domain of the carcinoembryonic antigen blocks the establishment of tumor foci in vivo. Int J Cancer 2012; 131:2839-51. [PMID: 22495743 DOI: 10.1002/ijc.27582] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 02/28/2012] [Accepted: 03/27/2012] [Indexed: 12/11/2022]
Abstract
Metastatic forms of cancers remain the main cause of death in cancer patients. In this study, we demonstrate that directing a sustained antibody response towards the homotypic binding function of CEA interferes with the implantation and development of tumor foci in CEA-expressing transgenic (CEA.Tg) mice. Specifically, vaccinating CEA.Tg mice with a recombinant, altered self-form of the CEA Ig V-like N domain led to the production of circulating IgG1 and IgG2a antibodies that inhibited CEA-mediated adhesion of murine carcinoma expressing CEA (MC38.CEA) and mediated antibody-dependent lysis of tumor cells. Moreover, vaccinated CEA.Tg mice were resistant to the development of tumor nodules in the lungs and the peritoneal cavity, suggesting that mounting a focused antibody response to the CEA N domain may represent a simple therapeutic strategy to control the establishment of metastatic foci in cancer patients.
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Affiliation(s)
- Aws Abdul-Wahid
- Department of Medical Biophysics, University of Toronto; Toronto, Ontario, Canada
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Peng L, Oberst MD, Huang J, Brohawn P, Morehouse C, Lekstrom K, Baeuerle PA, Wu H, Yao Y, Coats SR, Dall’Acqua W, Damschroder M, Hammond SA. The CEA/CD3-bispecific antibody MEDI-565 (MT111) binds a nonlinear epitope in the full-length but not a short splice variant of CEA. PLoS One 2012; 7:e36412. [PMID: 22574157 PMCID: PMC3344869 DOI: 10.1371/journal.pone.0036412] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Accepted: 04/09/2012] [Indexed: 12/21/2022] Open
Abstract
MEDI-565 (also known as MT111) is a bispecific T-cell engager (BiTE®) antibody in development for the treatment of patients with cancers expressing carcinoembryonic antigen (CEA). MEDI-565 binds CEA on cancer cells and CD3 on T cells to induce T-cell mediated killing of cancer cells. To understand the molecular basis of human CEA recognition by MEDI-565 and how polymorphisms and spliced forms of CEA may affect MEDI-565 activity, we mapped the epitope of MEDI-565 on CEA using mutagenesis and homology modeling approaches. We found that MEDI-565 recognized a conformational epitope in the A2 domain comprised of amino acids 326–349 and 388–410, with critical residues F326, T328, N333, V388, G389, P390, E392, I408, and N410. Two non-synonymous single-nucleotide polymorphisms (SNPs) (rs10407503, rs7249230) were identified in the epitope region, but they are found at low homozygosity rates. Searching the National Center for Biotechnology Information GenBank® database, we further identified a single, previously uncharacterized mRNA splice variant of CEA that lacks a portion of the N-terminal domain, the A1 and B1 domains, and a large portion of the A2 domain. Real-time quantitative polymerase chain reaction analysis of multiple cancers showed widespread expression of full-length CEA in these tumors, with less frequent but concordant expression of the CEA splice variant. Because the epitope was largely absent from the CEA splice variant, MEDI-565 did not bind or mediate T-cell killing of cells solely expressing this form of CEA. In addition, the splice variant did not interfere with MEDI-565 binding or activity when co-expressed with full-length CEA. Thus MEDI-565 may broadly target CEA-positive tumors without regard for expression of the short splice variant of CEA. Together our data suggest that MEDI-565 activity will neither be impacted by SNPs nor by a splice variant of CEA.
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Affiliation(s)
- Li Peng
- Department of Antibody Discovery and Protein Engineering, MedImmune LLC, Gaithersburg, Maryland, United States of America
| | - Michael D. Oberst
- Preclinical Oncology, MedImmune LLC, Gaithersburg, Maryland, United States of America
| | - Jiaqi Huang
- Translational Sciences, MedImmune LLC, Gaithersburg, Maryland, United States of America
| | - Philip Brohawn
- Translational Sciences, MedImmune LLC, Gaithersburg, Maryland, United States of America
| | - Chris Morehouse
- Translational Sciences, MedImmune LLC, Gaithersburg, Maryland, United States of America
| | - Kristen Lekstrom
- Department of Antibody Discovery and Protein Engineering, MedImmune LLC, Gaithersburg, Maryland, United States of America
| | | | - Herren Wu
- Department of Antibody Discovery and Protein Engineering, MedImmune LLC, Gaithersburg, Maryland, United States of America
| | - Yihong Yao
- Translational Sciences, MedImmune LLC, Gaithersburg, Maryland, United States of America
| | - Steven R. Coats
- Department of Antibody Discovery and Protein Engineering, MedImmune LLC, Gaithersburg, Maryland, United States of America
| | - William Dall’Acqua
- Department of Antibody Discovery and Protein Engineering, MedImmune LLC, Gaithersburg, Maryland, United States of America
| | - Melissa Damschroder
- Department of Antibody Discovery and Protein Engineering, MedImmune LLC, Gaithersburg, Maryland, United States of America
- * E-mail: (MD); (SH)
| | - Scott A. Hammond
- Preclinical Oncology, MedImmune LLC, Gaithersburg, Maryland, United States of America
- * E-mail: (MD); (SH)
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Skubitz KM, Skubitz APN. Two new synthetic peptides from the N-domain of CEACAM1 (CD66a) stimulate neutrophil adhesion to endothelial cells. Biopolymers 2011; 96:25-31. [PMID: 20560140 DOI: 10.1002/bip.21447] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Four members of the carcinoembryonic antigen family, CEACAMs 1, 3, 6, and 8, are expressed on human neutrophils and can trigger an activation signal that increases neutrophil adhesion to human umbilical vein endothelial cell (HUVEC) monolayers. To identify active sites on CEACAM1, we previously performed molecular modeling using IgG and CD4 as models, and 28 peptides of 14 amino acids in length were synthesized that were predicted to be present at loops and turns between β-sheets. Three peptides, each from the N-terminal domain, increased neutrophil adhesion to HUVEC monolayers and upregulated cell-surface CD11b/CD18 expression on neutrophils. In our earlier study, one N-domain peptide (CD66a-7) was not successfully synthesized, and another N-domain peptide (CD66a-6) was not soluble in the assay system. In the present study, we have now successfully synthesized CD66a-7, and a new peptide (CD66a-6L), that is a modification of the peptide that was insoluble in the earlier study. Both of these new peptides increased neutrophil adhesion to HUVEC monolayers. Importantly, the amino acid sequence of CD66a-7 is identical to the homologous peptides from CEACAMs 3, 5, and 6, but differs from the homologous peptide of CEACAM8, which was not active in this system. CD66a-6L is identical to the homologous peptide from CEACAM6. The data suggest that peptide motifs from at least five regions of the N-terminal domain of CEACAM1 are involved in the interaction of CEACAM1 with other ligands and can initiate signal transduction in neutrophils. Some of these active peptides are identical to homologous regions of other CEACAMs.
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Affiliation(s)
- Keith M Skubitz
- Department of Medicine, University of Minnesota Medical School, Minneapolis, MN 55455, USA.
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Køhler LB, Christensen C, Rossetti C, Fantin M, Sandi C, Bock E, Berezin V. Dennexin peptides modeled after the homophilic binding sites of the neural cell adhesion molecule (NCAM) promote neuronal survival, modify cell adhesion and impair spatial learning. Eur J Cell Biol 2010; 89:817-27. [DOI: 10.1016/j.ejcb.2010.07.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Revised: 06/22/2010] [Accepted: 07/12/2010] [Indexed: 02/03/2023] Open
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Bazou D, Blain EJ, Terence Coakley W, Bazou D, Blain EJ, Terence Coakley W. NCAM and PSA-NCAM dependent membrane spreading and F-actin reorganization in suspended adhering neural cells. Mol Membr Biol 2009; 25:102-14. [DOI: 10.1080/09687680701618365] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Despina Bazou
- School of Biosciences, Cardiff University, Cardiff, Wales, UK
| | - Emma J. Blain
- School of Biosciences, Cardiff University, Cardiff, Wales, UK
| | | | - Despina Bazou
- School of Biosciences, Cardiff University, Cardiff, Wales, UK
| | - Emma J. Blain
- School of Biosciences, Cardiff University, Cardiff, Wales, UK
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Skubitz KM, Skubitz APN. Interdependency of CEACAM-1, -3, -6, and -8 induced human neutrophil adhesion to endothelial cells. J Transl Med 2008; 6:78. [PMID: 19077207 PMCID: PMC2628881 DOI: 10.1186/1479-5876-6-78] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2008] [Accepted: 12/10/2008] [Indexed: 12/23/2022] Open
Abstract
Members of the carcinoembryonic antigen family (CEACAMs) are widely expressed, and, depending on the tissue, capable of regulating diverse functions including tumor promotion, tumor suppression, angiogenesis, and neutrophil activation. Four members of this family, CEACAM1, CEACAM8, CEACAM6, and CEACAM3 (recognized by CD66a, CD66b, CD66c, and CD66d mAbs, respectively), are expressed on human neutrophils. CD66a, CD66b, CD66c, and CD66d antibodies each increase neutrophil adhesion to human umbilical vein endothelial cell monolayers. This increase in neutrophil adhesion caused by CD66 antibodies is blocked by CD18 mAbs and is associated with upregulation of CD11/CD18 on the neutrophil surface. To examine potential interactions of CEACAMs in neutrophil signaling, the effects on neutrophil adhesion to human umbilical vein endothelial cells of a set of CD66 mAbs was tested following desensitization to stimulation by various combinations of these mAbs. Addition of a CD66 mAb in the absence of calcium results in desensitization of neutrophils to stimulation by that CD66 mAb. The current data show that desensitization of neutrophils to any two CEACAMs results in selective desensitization to those two CEACAMs, while the cells remain responsive to the other two neutrophil CEACAMs. In addition, cells desensitized to CEACAM-3, -6, and -8 were still responsive to stimulation of CEACAM1 by CD66a mAbs. In contrast, desensitization of cells to CEACAM1 and any two of the other CEACAMs left the cells unresponsive to all CD66 mAbs. Cells desensitized to any combination of CEACAMs remained responsive to the unrelated control protein CD63. Thus, while there is significant independence of the four neutrophil CEACAMs in signaling, CEACAM1 appears to play a unique role among the neutrophil CEACAMs. A model in which CEACAMs dimerize to form signaling complexes could accommodate the observations. Similar interactions may occur in other cells expressing CEACAMs.
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Affiliation(s)
- Keith M Skubitz
- The Department of Medicine, University of Minnesota Medical School, Masonic Cancer Center, Minneapolis, MN 55455, USA.
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33
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Belton RJ, Chen L, Mesquita FS, Nowak RA. Basigin-2 is a cell surface receptor for soluble basigin ligand. J Biol Chem 2008; 283:17805-14. [PMID: 18434307 DOI: 10.1074/jbc.m801876200] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The metastatic spread of a tumor is dependent upon the ability of the tumor to stimulate surrounding stromal cells to express enzymes required for tissue remodeling. The immunoglobulin superfamily protein basigin (EMMPRIN/CD147) is a cell surface glycoprotein expressed by tumor cells that stimulates matrix metalloproteinase and vascular endothelial growth factor expression in stromal cells. The ability of basigin to stimulate expression of molecules involved in tissue remodeling and angiogenesis makes basigin a potential target for the development of strategies to block metastasis. However, the identity of the cell surface receptor for basigin remains controversial. The goal of this study was to determine the identity of the receptor for basigin. Using a novel recombinant basigin protein (rBSG) corresponding to the extracellular domain of basigin, it was demonstrated that the native, nonglycosylated rBSG protein forms dimers in solution. Furthermore, rBSG binds to the surface of uterine fibroblasts, activates the ERK1/2 signaling pathway, and induces expression of matrix metalloproteinases 1, 2, and 3. Proteins that interact with rBSG were isolated using a biotin label transfer technique and sequenced by matrix-assisted laser desorption ionization tandem mass spectrophotometry. The results demonstrate that rBSG interacts with basigin expressed on the surface of fibroblasts and is subsequently internalized. During internalization, rBSG associates with a novel form of human basigin (basigin-3). It was concluded that cell surface basigin functions as a membrane receptor for soluble basigin and this homophilic interaction is not dependent upon glycosylation of the basigin ligand.
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Affiliation(s)
- Robert J Belton
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
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34
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Ditlevsen DK, Povlsen GK, Berezin V, Bock E. NCAM-induced intracellular signaling revisited. J Neurosci Res 2008; 86:727-43. [DOI: 10.1002/jnr.21551] [Citation(s) in RCA: 113] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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35
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Stern-Ginossar N, Nedvetzki S, Markel G, Gazit R, Betser-Cohen G, Achdout H, Aker M, Blumberg RS, Davis DM, Appelmelk B, Mandelboim O. Intercellular transfer of carcinoembryonic antigen from tumor cells to NK cells. THE JOURNAL OF IMMUNOLOGY 2007; 179:4424-34. [PMID: 17878338 DOI: 10.4049/jimmunol.179.7.4424] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The inhibition of NK cell killing is mainly mediated via the interaction of NK inhibitory receptors with MHC class I proteins. In addition, we have previously demonstrated that NK cells are inhibited in a class I MHC-independent manner via homophilic carcinoembryonic Ag (CEA) cell adhesion molecules (CEACAM1)-CEACAM1 and heterophilic CEACAM1-CEA interactions. However, the cross-talk between immune effector cells and their target cells is not limited to cell interactions per se, but also involves a specific exchange of proteins. The reasons for these molecular exchanges and the functional outcome of this phenomenon are still mostly unknown. In this study, we show that NK cells rapidly and specifically acquire CEA molecules from target cells. We evaluated the role of cytotoxicity in the acquisition of CEA and demonstrated it to be mostly killing independent. We further demonstrate that CEA transfer requires a specific interaction with an unknown putative NK cell receptor and that carbohydrates are probably involved in CEA recognition and acquisition by NK cells. Functionally, the killing of bulk NK cultures was inhibited by CEA-expressing cells, suggesting that this putative receptor is an inhibitory receptor.
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Affiliation(s)
- Noam Stern-Ginossar
- Lautenberg Center for General and Tumor Immunology, Hadassah Medical School, Hebrew University, Jerusalem, Israel
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36
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Klaile E, Müller MM, Kannicht C, Otto W, Singer BB, Reutter W, Obrink B, Lucka L. The cell adhesion receptor carcinoembryonic antigen-related cell adhesion molecule 1 regulates nucleocytoplasmic trafficking of DNA polymerase delta-interacting protein 38. J Biol Chem 2007; 282:26629-40. [PMID: 17623671 DOI: 10.1074/jbc.m701807200] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The homophilic cell-cell adhesion receptor CEACAM1 (carcinoembryonic antigen-related cell adhesion molecule 1, CD66a) acts as a regulator of contact-dependent cell survival, differentiation, and growth. It is involved in the control of proliferation in hematopoietic and epithelial cells and can act as a tumor suppressor. In this study, we identify DNA polymerase delta-interacting protein 38 (PDIP38) as a novel binding partner for CEACAM1-L and CEACAM1-S. We show that PDIP38 can occur in the nucleus, in the cytoplasm and at the plasma membrane in NBT-II, IEC18, RBE, and HeLa cells and that the distribution in NBT-II cells is influenced by the confluency of the cells. We also demonstrate that the interaction of CEACAM1 and PDIP38 is of functional importance in NBT-II cells, which co-express the long and the short CEACAM1 isoform. In subconfluent, proliferating NBT-II cells, perturbation of CEACAM1 by antibody clustering induces increased binding to PDIP38 and results in rapid recruitment of PDIP38 to the plasma membrane. The same treatment of confluent, quiescent NBT-II cells leads to a different response, i.e. translocation of PDIP38 to the nucleus. Together, our data show that PDIP38 can shuttle between the cytoplasmic and the nuclear compartments and that its subcellular localization is regulated by CEACAM1, implicating that PDIP38 may constitute a novel downstream target of CEACAM1 signaling.
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Affiliation(s)
- Esther Klaile
- Institut für Biochemie und Molekularbiologie, Charité, Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin-Dahlem D-14195, Germany.
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Samara RN, Laguinge LM, Jessup JM. Carcinoembryonic antigen inhibits anoikis in colorectal carcinoma cells by interfering with TRAIL-R2 (DR5) signaling. Cancer Res 2007; 67:4774-82. [PMID: 17510406 DOI: 10.1158/0008-5472.can-06-4315] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Carcinoembryonic antigen (CEA) is a tumor marker that is associated with metastasis, poor response to chemotherapy of colorectal cancer (CRC), and anoikis, a form of apoptosis caused by cell detachment from matrix that is dependent on TRAIL-R2 (DR5) and caspase-8 activation in CRC. Although CEA is a homophilic binding protein that may provide survival signals through homotypical cell aggregation, we now report that CEA binds TRAIL-R2 (DR5) directly in two-hybrid assays to decrease anoikis through the extrinsic pathway. Deletion of the PELPK sequence (delPELPK) of CEA (delPELPK CEA) restores sensitivity to anoikis while it maintains its cell aggregation function. Wild-type (WT) CEA also increases experimental hepatic metastasis, whereas the delPELPK CEA does not. Thus, membrane CEA interacts with DR5 to inhibit anoikis and increase metastatic potential in CRC.
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Affiliation(s)
- Raed N Samara
- Department of Oncology, Georgetown University Medical Center, Washington, District of Columbia 20057, USA
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38
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Camacho-Leal P, Zhai AB, Stanners CP. A co-clustering model involving alpha5beta1 integrin for the biological effects of GPI-anchored human carcinoembryonic antigen (CEA). J Cell Physiol 2007; 211:791-802. [PMID: 17286276 DOI: 10.1002/jcp.20989] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
CEA functions as an intercellular adhesion molecule and is up-regulated in a wide variety of human cancers, including colon, breast and lung. Its over-expression inhibits cellular differentiation, blocks cell polarization, distorts tissue architecture, and inhibits anoikis of many different cell types. Here we report results concerning the molecular mechanism involved in these biological effects, where relatively rapid molecular changes not requiring alterations in gene expression were emphasized. Confocal microscopy experiments showed that antibody-mediated clustering of a deletion mutant of CEA (DeltaNCEA), normally incapable of self binding and clustering, led to the co-localization of integrin alpha5beta1 with patches of DeltaNCEA on the cell surface. Activation of alpha5, as defined by an anti-alpha5 mAb-sensitive increase in cell adhesion to immobilized fibronectin, and an increased binding of soluble fibronectin to cells, was also observed. This was accompanied by the recruitment of integrin-linked kinase (ILK), protein kinase B (PKB/Akt), and the mitogen-activated protein kinase (MAPK) to membrane microdomains and the phosphorylation of Akt and MAPK. Inhibition of PI3-K and ILK, but not MAPK, prevented the alpha5beta1 integrin activation. Conversely, anti-alpha5 antibody inhibited the PI3-K-mediated activation of Akt, implying the involvement of outside-in and inside-out signaling in integrin activation. Therefore we propose that CEA-mediated signaling involves clustering of CEA and co-clustering and activation of the alpha5beta1 and associated specific signaling elements on the internal surfaces of membrane microdomains. These changes may represent a molecular mechanism for the biological effects of CEA.
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Affiliation(s)
- Pilar Camacho-Leal
- Department of Biochemistry and McGill Cancer Centre, McGill University, Quebec, Canada
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Nicholson TB, Stanners CP. Identification of a novel functional specificity signal within the GPI anchor signal sequence of carcinoembryonic antigen. ACTA ACUST UNITED AC 2007; 177:211-8. [PMID: 17438079 PMCID: PMC2064130 DOI: 10.1083/jcb.200701158] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Exchanging the glycophosphatidylinositol (GPI) anchor signal sequence of neural cell adhesion molecule (NCAM) for the signal sequence of carcinoembryonic antigen (CEA) generates a mature protein with NCAM external domains but CEA-like tumorigenic activity. We hypothesized that this resulted from the presence of a functional specificity signal within this sequence and generated CEA/NCAM chimeras to identify this signal. Replacing the residues (GLSAG) 6–10 amino acids downstream of the CEA anchor addition site with the corresponding NCAM residues resulted in GPI-anchored proteins lacking the CEA-like biological functions of integrin modulation and differentiation blockage. Transferring this region from CEA into NCAM in conjunction with the upstream proline (PGLSAG) was sufficient to specify the addition of the CEA anchor. Therefore, this study identifies a novel specificity signal consisting of six amino acids located within the GPI anchor attachment signal, which is necessary and sufficient to specify the addition of a particular functional GPI anchor and, thereby, the ultimate function of the mature protein.
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Affiliation(s)
- Thomas B Nicholson
- McGill Cancer Centre and 2Biochemistry Department, McGill University, Montréal, Québec H3G 1Y6, Canada
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Naghibalhossaini F, Yoder AD, Tobi M, Stanners CP. Evolution of a tumorigenic property conferred by glycophosphatidyl-inositol membrane anchors of carcinoembryonic antigen gene family members during the primate radiation. Mol Biol Cell 2007; 18:1366-74. [PMID: 17287394 PMCID: PMC1838992 DOI: 10.1091/mbc.e06-10-0884] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
GPI membrane anchors of cell surface glycoproteins have been shown to confer functional properties that are different from their transmembrane (TM)-anchored counterparts. For the human carcinoembryonic antigen (CEA) family, a subfamily of the immunoglobulin superfamily, conversion of the mode of membrane linkage from TM to GPI confers radical changes in function: from tumor suppression or neutrality toward inhibition of differentiation and anoikis and distortion of tissue architecture, thereby contributing to tumorigenesis. We show here that GPI anchorage in the CEA family evolved twice independently in primates, very likely from more primitive TM anchors, by different packages of mutations. Both mutational packages, one package found in many primates, including humans, and a second, novel package found only in the Cebidae radiation of New World monkeys, give rise to efficiently processed GPI-linked proteins. Both types of GPI anchors mediate inhibition of cell differentiation. The estimated rate of nonsynonymous mutations (Ka) in the anchor-determining domain for conversion from TM to GPI anchorage in the CEA family that were fixed during evolution in these primates is 7 times higher than the average Ka in primates, indicating positive selection. These results suggest therefore that the functional changes mediated by CEA GPI anchors, including the inhibition of differentiation and anoikis, could be adaptive and advantageous.
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Affiliation(s)
| | - Anne D. Yoder
- Departments of Cell and Molecular Biology and Zoology, Northwestern University Medical School, Chicago, IL 60611
- Department of Zoology, Field Museum of Natural History, Chicago, IL 60605
| | - Martin Tobi
- Wayne State University, School of Medicine, Detroit VAMC, Detroit, MI 48201; and
| | - Clifford P. Stanners
- *McGill Cancer Centre and Department of Biochemistry, McGill University, Montréal, Québec, Canada H3G 1Y6
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Nicholson TB, Stanners CP. Specific inhibition of GPI-anchored protein function by homing and self-association of specific GPI anchors. ACTA ACUST UNITED AC 2006; 175:647-59. [PMID: 17101695 PMCID: PMC2064600 DOI: 10.1083/jcb.200605001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The functional specificity conferred by glycophosphatidylinositol (GPI) anchors on certain membrane proteins may arise from their occupancy of specific membrane microdomains. We show that membrane proteins with noninteractive external domains attached to the same carcinoembryonic antigen (CEA) GPI anchor, but not to unrelated neural cell adhesion molecule GPI anchors, colocalize on the cell surface, confirming that the GPI anchor mediates association with specific membrane domains and providing a mechanism for specific signaling. This directed targeting was exploited by coexpressing an external domain-defective protein with a functional protein, both with the CEA GPI anchor. The result was a complete loss of signaling capabilities (through integrin–ECM interaction) and cellular effect (differentiation blockage) of the active protein, which involved an alteration of the size of the microdomains occupied by the active protein. This work clarifies how the GPI anchor can determine protein function, while offering a novel method for its modulation.
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Affiliation(s)
- Thomas B Nicholson
- McGill Cancer Centre and Biochemistry Department, McGill University, Montréal, Québec, Canada H3G 1Y6
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42
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Ordonez C, Zhai AB, Camacho-Leal P, Demarte L, Fan MMY, Stanners CP. GPI-anchored CEA family glycoproteins CEA and CEACAM6 mediate their biological effects through enhanced integrin α5β1-fibronectin interaction. J Cell Physiol 2006; 210:757-65. [PMID: 17167768 DOI: 10.1002/jcp.20887] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Carcinoembryonic antigen (CEA) and CEA family member CEACAM6 are glycophosphatidyl inositol (GPI)-anchored, intercellular adhesion molecules that are up-regulated in a wide variety of human cancers, including colon, breast, and lung. When over-expressed in a number of cellular systems, these molecules are capable of inhibiting cellular differentiation and anoikis, as well as disrupting cell polarization and tissue architecture, thus increasing tumorigenicity. The present study shows that perturbation of the major fibronectin receptor, integrin alpha5beta1, underlies some of these biological effects. Using confocal microscopy and specific antibodies, CEA and CEACAM6 were demonstrated to co-cluster with integrin alpha5beta1 on the cell surface. The presence of CEA and CEACAM6 was shown to lead to an increase in the binding of the integrin alpha5beta1 receptor to its ligand fibronectin, without changing its cell surface levels, resulting in increased adhesion of CEA/CEACAM6-expressing cells to fibronectin. More tenacious binding of free fibronectin to cells led to enhanced fibronectin matrix assembly and the formation of a polymerized fibronectin "cocoon" around the cells. Disruption of this process with specific monoclonal antibodies against either fibronectin or integrin alpha5beta1 led to the restoration of cellular differentiation and anoikis in CEA/CEACAM6 producing cells.
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Affiliation(s)
- Cosme Ordonez
- Department of Biochemistry and McGill Cancer Centre, McGill University, Montreal, Quebec, Canada
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43
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Kiselyov VV, Soroka V, Berezin V, Bock E. Structural biology of NCAM homophilic binding and activation of FGFR. J Neurochem 2005; 94:1169-79. [PMID: 16045455 DOI: 10.1111/j.1471-4159.2005.03284.x] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
In this review, we analyse the structural basis of the homophilic interactions of the neural cell adhesion molecule (NCAM) and the NCAM-mediated activation of the fibroblast growth factor receptor (FGFR). Recent structural evidence suggests that NCAM molecules form cis-dimers in the cell membrane through a high affinity interaction. These cis-dimers, in turn, mediate low affinity trans-interactions between cells via formation of either one- or two-dimensional 'zippers'. We provide evidence that FGFR is probably activated by NCAM very differently from the way by which it is activated by FGFs, reflecting the different conditions for NCAM-FGFR and FGF-FGFR interactions. The affinity of FGF for FGFR is approximately 10(6) times higher than that of NCAM for FGFR. Moreover, in the brain NCAM is constantly present on the cell surface in a concentration of about 50 microm, whereas FGFs only appear transiently in the extracellular environment and in concentrations in the nanomolar range. We discuss the structural basis for the regulation of NCAM-FGFR interactions by two molecular 'switches', polysialic acid (PSA) and adenosine triphosphate (ATP), which determine whether NCAM acts as a signalling or an adhesion molecule.
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Affiliation(s)
- Vladislav V Kiselyov
- Protein Laboratory, Institute of Molecular Pathology, Panum Institute, School of Medicine, University of Copenhagen, Blegdamsvej 3C, Building 6.2, Copenhagen, Denmark
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44
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Stern N, Markel G, Arnon TI, Gruda R, Wong H, Gray-Owen SD, Mandelboim O. Carcinoembryonic antigen (CEA) inhibits NK killing via interaction with CEA-related cell adhesion molecule 1. THE JOURNAL OF IMMUNOLOGY 2005; 174:6692-701. [PMID: 15905509 DOI: 10.4049/jimmunol.174.11.6692] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The NK killing activity is regulated by activating and inhibitory NK receptors. All of the activating ligands identified so far are either viral or stress-induced proteins. The class I MHC proteins are the ligands for most of the inhibitory NK receptors. However, in the past few years, several receptors have been identified that are able to inhibit NK killing independently of class I MHC recognition. We have previously demonstrated the existence of a novel inhibitory mechanism of NK cell cytotoxicity mediated by the homophilic carcinoembryonic Ag (CEA)-related cell adhesion molecule 1 (CEACAM1) interactions. In this study, we demonstrate that CEACAM1 also interacts heterophilically with the CEA protein. Importantly, we show that these heterophilic interactions of CEA and CEACAM1 inhibit the killing by NK cells. Because CEA is expressed on a wide range of carcinomas and commonly used as tumor marker, these results represent a novel role for the CEA protein enabling the escape of tumor cells from NK-mediated killing. We further characterize, for the first time, the CEACAM1-CEA interactions. Using functional and binding assays, we demonstrate that the N domains of CEACAM1 and CEA are crucial but not sufficient for both the CEACAM1-CEACAM1 homophilic and CEACAM1-CEA heterophilic interactions. Finally, we suggest that the involvement of additional domains beside the N domain in the heterophilic and homophilic interactions is important for regulating the balance between cis and trans interactions.
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MESH Headings
- Animals
- Antigens, CD/biosynthesis
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Antigens, CD/physiology
- Antigens, Differentiation/biosynthesis
- Antigens, Differentiation/genetics
- Antigens, Differentiation/metabolism
- Antigens, Differentiation/physiology
- Carcinoembryonic Antigen/genetics
- Carcinoembryonic Antigen/metabolism
- Carcinoembryonic Antigen/physiology
- Cell Adhesion Molecules/metabolism
- Cell Line, Transformed
- Cell Line, Tumor
- Clone Cells
- Cytotoxicity, Immunologic/genetics
- Cytotoxicity, Immunologic/immunology
- Humans
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Mice
- Peptide Fragments/genetics
- Peptide Fragments/metabolism
- Peptide Fragments/physiology
- Protein Binding/genetics
- Protein Binding/immunology
- Protein Structure, Tertiary/genetics
- Recombinant Fusion Proteins/genetics
- Recombinant Fusion Proteins/metabolism
- Recombinant Fusion Proteins/physiology
- Sequence Deletion/immunology
- Transfection
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Affiliation(s)
- Noam Stern
- Lautenberg Center for General and Tumor Immunology, Hebrew University Hadassah Medical School, Jerusalem, Israel
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Naghibalhossaini F, Stanners CP. Minimal mutations are required to effect a radical change in function in CEA family members of the Ig superfamily. J Cell Sci 2004; 117:761-9. [PMID: 14734654 DOI: 10.1242/jcs.00903] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
GPI anchorage in the CEA family results in the acquisition of radically different functions relative to TM anchorage, including inhibition of differentiation and anoikis, disruption of tissue architecture and promotion of tumorigenicity. CEA GPI anchors, as determined by the carboxy-terminal exon of CEA, demonstrate biological specificity in their ability to confer these functional changes. CEA family GPI anchorage appears to have evolved twice independently during the primate radiation, in a manner suggestive of evolution from more primitive TM-anchored CEACAM1. We show here that very few mutations in the TM exon of present-day human CEACAM1 are required to give efficient GPI anchorage and the biological specificity of CEA GPI anchors, i.e., to give the differentiation-blocking function of GPI-anchored CEA. Such a change in anchorage could therefore represent a relatively facile means for producing radical change in molecular function of Ig superfamily members during evolution.
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46
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Taheri M, Saragovi HU, Stanners CP. The adhesion and differentiation-inhibitory activities of the immunoglobulin superfamily member, carcinoembryonic antigen, can be independently blocked. J Biol Chem 2003; 278:14632-9. [PMID: 12571231 DOI: 10.1074/jbc.m212500200] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The external domains of Ig superfamily members are involved in multiple binding interactions, both homophilic and heterophilic, that initiate molecular events leading to the execution of diverse cell functions. Human carcinoembryonic antigen (CEA), an Ig superfamily cell surface glycoprotein used widely as a clinical tumor marker, undergoes homophilic interactions that mediate intercellular adhesion. Recent evidence supports the view that deregulated overexpression of CEA has an instrumental role in tumorigenesis through the inhibition of cell differentiation and the disruption of tissue architecture. The CEA-mediated block of the myogenic differentiation of rat L6 myoblasts depends on homophilic binding of its external domains. We show here that L6 transfectant cells expressing CEA can "trans-block" the myogenesis of juxtaposed differentiation-competent L6 transfectant cells expressing a deletion mutant of CEA (DeltaNCEA). This result implies the efficacy of antiparallel CEA-CEA interactions between cells in the differentiation block. In addition, DeltaNCEA can acquire differentiation blocking activity by cross-linking with specific anti-CEA antibodies, thus implying the efficacy of parallel CEA-CEA interactions on the same cell surface. The myogenic differentiation blocking activity of CEA was demonstrated by site-directed mutations to involve three subdomains of the amino-terminal domain, shown previously to be critical for its intercellular adhesion function. Monovalent Fab fragments of monoclonal antibodies binding to the region bridging subdomains 1 and 2 could both inhibit intercellular adhesion and release the myogenic differentiation block. Amino acid substitutions Q80A, Q80R, and D82N in subdomain 3, QNDTG, however, were found to completely ablate the differentiation blocking activity of CEA but had no effect on intercellular adhesion activity. A cyclized peptide representing this subdomain was the most effective at releasing the differentiation block.
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Affiliation(s)
- Maryam Taheri
- McGill Cancer Centre and Departments of Biochemistry and Pharmacology and Therapeutics, McGill University, Montréal, Québec H3G 1Y6, Canada
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Mariggiò MA, Guarnieri S, Mariggiò S, Morabito C, Gianfranceschi GL, Fanò G. N-CAM expression and localization in PC12 cells modulated by extracellular peptides. Peptides 2002; 23:2151-61. [PMID: 12535693 DOI: 10.1016/s0196-9781(02)00258-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The neural cell adhesion molecules (N-CAMs) play an important role in mediating cell-cell interactions in the nervous system. Different isoforms of these membrane proteins are involved in the formation of the neuronal network and in the dynamic phases of neuronal plasticity. We studied the early stages of the pseudo neuronal differentiation of PC12 cells induced by a class of small acidic peptides capable of modulating gene expression in these cells. The data presented here indicate that peptides with specific sequences induce an increase in N-CAM mRNA expression and protein translocation to the plasma membrane to a comparable degree as NGF.
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Affiliation(s)
- Maria A Mariggiò
- Dipartimento di Scienze del Farmaco, Laboratorio di Fisiologia Cellulare, Università G. d'Annunzio, 66013 Chieti, Italy.
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Harris TJC, Siu CH. Reciprocal raft-receptor interactions and the assembly of adhesion complexes. Bioessays 2002; 24:996-1003. [PMID: 12386930 DOI: 10.1002/bies.10172] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Cell adhesion complexes are critical for the physical coordination of cell-cell interactions and the morphogenesis of tissues and organs. Many adhesion receptors are anchored to the plasma membrane by a glycosylphosphatidylinositol (GPI) moiety and are thereby partitioned into membrane rafts. In this review, we focus on reciprocal interactions between rafts and adhesion molecules, leading to receptor clustering and raft expansion and stability. A model for a three-stage adhesion complex assembly process is also proposed. First, GPI-anchored adhesion molecules are recruited into rafts, which in turn promote receptor cis-oligomerization and thereby produce precursory complexes primed for avid trans-interactions. Second, trans-interactions of the receptors cross-link and stabilize large amalgams of rafts at sites of adhesion complex assembly. Finally, the enlarged and stabilized rafts acquire enhanced abilities to recruit the cytoskeleton and induce signaling. This process exemplifies how the domain structure of the plasma membrane can impact the function of its receptors.
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Affiliation(s)
- Tony J C Harris
- Banting and Best Department of Medical Research, University of Toronto, Ontario, Canada
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49
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Masuda M, Yageta M, Fukuhara H, Kuramochi M, Maruyama T, Nomoto A, Murakami Y. The tumor suppressor protein TSLC1 is involved in cell-cell adhesion. J Biol Chem 2002; 277:31014-9. [PMID: 12050160 DOI: 10.1074/jbc.m203620200] [Citation(s) in RCA: 132] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
TSLC1 is a tumor suppressor gene encoding a member of the immunoglobulin (Ig) superfamily. The significant homology of its extracellular domain with those of other Ig superfamily cell adhesion molecules (IgCAMs) has raised the possibility that TSLC1 participates in cell-cell interactions. In this study, the physiological properties of TSLC1 were investigated in Madin-Darby canine kidney (MDCK) cells expressing TSLC1 tagged with green fluorescent protein (GFP) as well as in the cells that express endogenous TSLC1. Biochemical analysis has revealed that TSLC1 is an N-linked glycoprotein with a molecular mass of 75 kDa and that it forms homodimers through cis interaction within the plane of the cell membranes. Confocal laser scanning microcopy of the cells expressing TSLC1 showed the localization patterns characteristic to adhesion molecules. At the beginning of cell attachment, TSLC1 accumulated in interdigitated structures at cell-cell boundaries, but, when cells reached a confluence, TSLC1 was distributed all along the cell membranes. In polarized cells, TSLC1 was recruited to the lateral membrane, implying trans interaction of TSLC1 between neighboring cells. In support of this notion, MDCK cells expressing TSLC1-GFP showed a significant level of cell aggregation in the absence or presence of Ca(2+) and Mg(2+). Taken together, these results indicate that TSLC1 mediates intracellular adhesion through homophilic interactions in a Ca(2+)/Mg(2+)-independent manner.
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Affiliation(s)
- Mari Masuda
- Tumor Suppression & Functional Genomics Project, National Cancer Center Research Institutes, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
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50
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Deregulated expression of the human tumor marker CEA and CEA family member CEACAM6 disrupts tissue architecture and blocks colonocyte differentiation. Neoplasia 2002. [PMID: 11896570 DOI: 10.1038/sj/neo/7900201] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Human carcinoembryonic antigen (CEA) and the CEA family member CEACAM6 (formerly nonspecific cross-reacting antigen [NCA]) function in vitro, at least, as homotypic intercellular adhesion molecules and, in model systems, can block the terminal differentiation and anoikis of several different cell types. We have recently demonstrated that the increased cell surface levels of CEA and CEACAM6 in purified human colonocytes from freshly excised, well to poorly differentiated colon carcinomas are inversely correlated with the degree of cellular differentiation. Thus, deregulated expression of CEA/CEACAM6 could directly contribute to colon tumorigenesis by the inhibition of terminal differentiation and anoikis. Evidence against this view includes the common observation of increased CEA/CEACAM6 expression as normal colonocytes differentiate in their migration up colonic crypt walls. We report here the direct effects of deregulated overexpression of CEA/CEACAM6, at levels observed in colorectal carcinomas, on the differentiation of two human colonic cell lines, SW-1222 and Caco-2. Stable transfectants of both of these cell lines that constitutively express 10- to 30-fold higher cell surface levels of CEA/CEACAM6 than endogenous levels failed to polarize and differentiate into glandular structures in monolayer or 3D culture or to form colonic crypts in a tissue architecture assay in nude mice. In addition, these transfectants were found to exhibit increased tumorigenicity in nude mice. These results thus support the contention that deregulated overexpression of CEA and CEACAM6 could provide a tumorigenic contribution to colon carcinogenesis.
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