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Zhao J, Huang A, Zeller J, Peter K, McFadyen JD. Decoding the role of platelets in tumour metastasis: enigmatic accomplices and intricate targets for anticancer treatments. Front Immunol 2023; 14:1256129. [PMID: 38106409 PMCID: PMC10722285 DOI: 10.3389/fimmu.2023.1256129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 11/15/2023] [Indexed: 12/19/2023] Open
Abstract
The canonical role of platelets as central players in cardiovascular disease by way of their fundamental role in mediating thrombosis and haemostasis is well appreciated. However, there is now a large body of experimental evidence demonstrating that platelets are also pivotal in various physiological and pathophysiological processes other than maintaining haemostasis. Foremost amongst these is the emerging data highlighting the key role of platelets in driving cancer growth, metastasis and modulating the tumour microenvironment. As such, there is significant interest in targeting platelets therapeutically for the treatment of cancer. Therefore, the purpose of this review is to provide an overview of how platelets contribute to the cancer landscape and why platelets present as valuable targets for the development of novel cancer diagnosis tools and therapeutics.
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Affiliation(s)
- Jessie Zhao
- Department of Clinical Haematology, Alfred Hospital, Melbourne, VI, Australia
- Australian Centre for Blood Diseases, Monash University, Melbourne, VI, Australia
| | - Angela Huang
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VI, Australia
| | - Johannes Zeller
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VI, Australia
- Department of Plastic and Hand Surgery, Medical Center – University of Freiburg, Medical Faculty of the University of Freiburg, Freiburg, Germany
| | - Karlheinz Peter
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VI, Australia
- Department of Cardiology, Alfred Hospital, Melbourne, VI, Australia
- Department of Cardiometabolic Health, The University of Melbourne, Parkville, VI, Australia
- Department of Medicine, Monash University, Melbourne, VI, Australia
| | - James D. McFadyen
- Department of Clinical Haematology, Alfred Hospital, Melbourne, VI, Australia
- Australian Centre for Blood Diseases, Monash University, Melbourne, VI, Australia
- Atherothrombosis and Vascular Biology Laboratory, Baker Heart and Diabetes Institute, Melbourne, VI, Australia
- Department of Cardiometabolic Health, The University of Melbourne, Parkville, VI, Australia
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2
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Fels B, Bulk E, Pethő Z, Schwab A. The Role of TRP Channels in the Metastatic Cascade. Pharmaceuticals (Basel) 2018; 11:E48. [PMID: 29772843 PMCID: PMC6027473 DOI: 10.3390/ph11020048] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 05/15/2018] [Accepted: 05/16/2018] [Indexed: 12/16/2022] Open
Abstract
A dysregulated cellular Ca2+ homeostasis is involved in multiple pathologies including cancer. Changes in Ca2+ signaling caused by altered fluxes through ion channels and transporters (the transportome) are involved in all steps of the metastatic cascade. Cancer cells thereby "re-program" and "misuse" the cellular transportome to regulate proliferation, apoptosis, metabolism, growth factor signaling, migration and invasion. Cancer cells use their transportome to cope with diverse environmental challenges during the metastatic cascade, like hypoxic, acidic and mechanical cues. Hence, ion channels and transporters are key modulators of cancer progression. This review focuses on the role of transient receptor potential (TRP) channels in the metastatic cascade. After briefly introducing the role of the transportome in cancer, we discuss TRP channel functions in cancer cell migration. We highlight the role of TRP channels in sensing and transmitting cues from the tumor microenvironment and discuss their role in cancer cell invasion. We identify open questions concerning the role of TRP channels in circulating tumor cells and in the processes of intra- and extravasation of tumor cells. We emphasize the importance of TRP channels in different steps of cancer metastasis and propose cancer-specific TRP channel blockade as a therapeutic option in cancer treatment.
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Affiliation(s)
- Benedikt Fels
- Institut für Physiologie II, Robert-Koch-Str. 27b, 48149 Münster, Germany.
| | - Etmar Bulk
- Institut für Physiologie II, Robert-Koch-Str. 27b, 48149 Münster, Germany.
| | - Zoltán Pethő
- Institut für Physiologie II, Robert-Koch-Str. 27b, 48149 Münster, Germany.
| | - Albrecht Schwab
- Institut für Physiologie II, Robert-Koch-Str. 27b, 48149 Münster, Germany.
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3
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The Interaction of Selectins and PSGL-1 as a Key Component in Thrombus Formation and Cancer Progression. BIOMED RESEARCH INTERNATIONAL 2017; 2017:6138145. [PMID: 28680883 PMCID: PMC5478826 DOI: 10.1155/2017/6138145] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 04/12/2017] [Accepted: 04/23/2017] [Indexed: 12/11/2022]
Abstract
Cellular interaction is inevitable in the pathomechanism of human disease. Formation of heterotypic cellular aggregates, between distinct cells of hematopoietic and nonhematopoietic origin, may be involved in events leading to inflammation and the complex process of cancer progression. Among adhesion receptors, the family of selectins with their ligands have been considered as one of the major contributors to cell-cell interactions. Consequently, the inhibition of the interplay between selectins and their ligands may have potential therapeutic benefits. In this review, we focus on the current evidence on the selectins as crucial modulators of inflammatory, thrombotic, and malignant disorders. Knowing that there is promiscuity in selectin binding, we outline the importance of a key protein that serves as a ligand for all selectins. This dimeric mucin, the P-selectin glycoprotein ligand 1 (PSGL-1), has emerged as a major player in inflammation, thrombus, and cancer development. We discuss the interaction of PSGL-1 with various selectins in physiological and pathological processes with particular emphasis on mechanisms that lead to severe disease.
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4
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Häuselmann I, Borsig L. Altered tumor-cell glycosylation promotes metastasis. Front Oncol 2014; 4:28. [PMID: 24592356 PMCID: PMC3923139 DOI: 10.3389/fonc.2014.00028] [Citation(s) in RCA: 252] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Accepted: 01/29/2014] [Indexed: 12/14/2022] Open
Abstract
Malignant transformation of cells is associated with aberrant glycosylation presented on the cell-surface. Commonly observed changes in glycan structures during malignancy encompass aberrant expression and glycosylation of mucins; abnormal branching of N-glycans; and increased presence of sialic acid on proteins and glycolipids. Accumulating evidence supports the notion that the presence of certain glycan structures correlates with cancer progression by affecting tumor-cell invasiveness, ability to disseminate through the blood circulation and to metastasize in distant organs. During metastasis tumor-cell-derived glycans enable binding to cells in their microenvironment including endothelium and blood constituents through glycan-binding receptors – lectins. In this review, we will discuss current concepts how tumor-cell-derived glycans contribute to metastasis with the focus on three types of lectins: siglecs, galectins, and selectins. Siglecs are present on virtually all hematopoietic cells and usually negatively regulate immune responses. Galectins are mostly expressed by tumor cells and support tumor-cell survival. Selectins are vascular adhesion receptors that promote tumor-cell dissemination. All lectins facilitate interactions within the tumor microenvironment and thereby promote cancer progression. The identification of mechanisms how tumor glycans contribute to metastasis may help to improve diagnosis, prognosis, and aid to develop clinical strategies to prevent metastasis.
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Affiliation(s)
- Irina Häuselmann
- Zürich Center for Integrative Human Physiology, Institute of Physiology, University of Zürich , Zürich , Switzerland
| | - Lubor Borsig
- Zürich Center for Integrative Human Physiology, Institute of Physiology, University of Zürich , Zürich , Switzerland
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5
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Lee N, Barthel SR, Schatton T. Melanoma stem cells and metastasis: mimicking hematopoietic cell trafficking? J Transl Med 2014; 94:13-30. [PMID: 24126889 PMCID: PMC3941309 DOI: 10.1038/labinvest.2013.116] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 09/04/2013] [Accepted: 09/08/2013] [Indexed: 12/16/2022] Open
Abstract
Malignant melanoma is a highly metastatic cancer that bears responsibility for the majority of skin cancer-related deaths. Amidst the research efforts to better understand melanoma progression, there has been increasing evidence that hints at a role for a subpopulation of virulent cancer cells, termed malignant melanoma stem or initiating cells (MMICs), in metastasis formation. MMICs are characterized by their preferential ability to initiate and propagate tumor growth and their selective capacity for self-renewal and differentiation into less tumorigenic melanoma cells. The frequency of MMICs has been shown to correlate with poor clinical prognosis in melanoma. In addition, MMICs are enriched among circulating tumor cells in the peripheral blood of cancer patients, suggesting that MMICs may be a critical factor in the metastatic cascade. Although these links exist between MMICs and metastatic disease, the mechanisms by which MMICs may advance metastatic progression are only beginning to be elucidated. Recent studies have shown that MMICs express molecules critical for hematopoietic cell maintenance and trafficking, providing a possible explanation for how circulating MMICs could drive melanoma dissemination. We therefore propose that MMICs might fuel melanoma metastasis by exploiting homing mechanisms commonly utilized by hematopoietic cells. Here we review the biological properties of MMICs and the existing literature on their metastatic potential. We will discuss possible mechanisms by which MMICs might initiate metastases in the context of established knowledge of cancer stem cells in other cancers and of hematopoietic homing molecules, with a particular focus on selectins, integrins, chemokines and chemokine receptors known to be expressed by melanoma cells. Biological understanding of how these molecules might be utilized by MMICs to propel the metastatic cascade could critically impact the development of more effective therapies for advanced disease.
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Affiliation(s)
- Nayoung Lee
- Harvard Skin Disease Research Center, Department of Dermatology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Steven R. Barthel
- Harvard Skin Disease Research Center, Department of Dermatology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Tobias Schatton
- Harvard Skin Disease Research Center, Department of Dermatology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA,Transplantation Research Center, Children’s Hospital Boston, Harvard Medical School, Boston, MA, USA,To whom correspondence should be addressed: Tobias Schatton, Pharm.D., Ph.D., Department of Dermatology, Brigham and Women’s Hospital, Harvard Institutes of Medicine, Rm. 673B, 77 Avenue Louis Pasteur, Boston, MA 02115, USA;
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6
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Jacobs PP, Sackstein R. CD44 and HCELL: preventing hematogenous metastasis at step 1. FEBS Lett 2011; 585:3148-58. [PMID: 21827751 DOI: 10.1016/j.febslet.2011.07.039] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2011] [Accepted: 07/21/2011] [Indexed: 12/23/2022]
Abstract
Despite great strides in our knowledge of the genetic and epigenetic changes underlying malignancy, we have limited information on the molecular basis of metastasis. Over 90% of cancer deaths are caused by spread of tumor cells from a primary site to distant organs and tissues, highlighting the pressing need to define the molecular effectors of cancer metastasis. Mounting evidence suggests that circulating tumor cells (CTCs) home to specific tissues by hijacking the normal leukocyte trafficking mechanisms. Cancer cells characteristically express CD44, and there is increasing evidence that hematopoietic cell E-/L-selectin ligand (HCELL), a sialofucosylated glycoform of CD44, serves as the major selectin ligand on cancer cells, allowing interaction of tumor cells with endothelium, leukocytes, and platelets. Here, we review the structural biology of CD44 and of HCELL, and present current data on the function of these molecules in mediating organ-specific homing/metastasis of CTCs.
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Affiliation(s)
- Pieter P Jacobs
- Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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7
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Konstantopoulos K, Thomas SN. Hematogenous metastasis: roles of CD44v and alternative sialofucosylated selectin ligands. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2011; 705:601-19. [PMID: 21618132 DOI: 10.1007/978-1-4419-7877-6_32] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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8
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Reyes-Reyes EM, Akiyama SK. Cell-surface nucleolin is a signal transducing P-selectin binding protein for human colon carcinoma cells. Exp Cell Res 2008; 314:2212-23. [PMID: 18504038 PMCID: PMC2504360 DOI: 10.1016/j.yexcr.2008.03.016] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2007] [Revised: 03/18/2008] [Accepted: 03/19/2008] [Indexed: 01/02/2023]
Abstract
We have previously shown that P-selectin binding to Colo-320 human colon carcinoma cells induces specific activation of the alpha(5)beta(1) integrin with a concomitant increase of cell adhesion and spreading on fibronectin substrates in a phosphatidylinositol 3-kinase (PI3-K) and p38 MAPK-dependent manner. Here, we identified by affinity chromatography and characterized nucleolin as a P-selectin receptor on Colo-320 cells. Nucleolin mAb D3 significantly decreases the Colo-320 cell adhesion to immobilized P-selectin-IgG-Fc. Moreover, nucleolin becomes clustered at the external side of the plasma membrane of living, intact cells when bound to cross-linked P-selectin-IgG-Fc chimeric protein. We have also found P-selectin binding to Colo-320 cells induces tyrosine phosphorylation specifically of cell-surface nucleolin and formation of a signaling complex containing cell-surface nucleolin, PI3-K and p38 MAPK. Using siRNA approaches, we have found that both P-selectin binding to Colo-320 cells and formation of the P-selectin-mediated p38 MAPK/PI3-K signaling complex require nucleolin expression. These results show that nucleolin (or a nucleolin-like protein) is a signaling receptor for P-selectin on Colo-320 cells and suggest a mechanism for linkage of nucleolin to P-selectin-induced signal transduction pathways that regulate the adhesion and the spreading of Colo-320 on fibronectin substrates.
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Affiliation(s)
- E. Merit Reyes-Reyes
- Laboratory of Molecular Carcinogenesis, National Institute of Environmental Health sciences, NIH, DHHS, Research Triangle Park, NC 27709, USA
| | - Steven K. Akiyama
- Laboratory of Molecular Carcinogenesis, National Institute of Environmental Health sciences, NIH, DHHS, Research Triangle Park, NC 27709, USA
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9
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Thomas SN, Zhu F, Schnaar RL, Alves CS, Konstantopoulos K. Carcinoembryonic antigen and CD44 variant isoforms cooperate to mediate colon carcinoma cell adhesion to E- and L-selectin in shear flow. J Biol Chem 2008; 283:15647-55. [PMID: 18375392 PMCID: PMC2414264 DOI: 10.1074/jbc.m800543200] [Citation(s) in RCA: 130] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 03/19/2008] [Indexed: 12/12/2022] Open
Abstract
Selectin-mediated adhesion of tumor cells to platelets, leukocytes, and endothelial cells may regulate their hematogenous dissemination in the microvasculature. We recently identified CD44 variant isoforms (CD44v) as functional P-, but not E- or L-, selectin ligands on colon carcinoma cells. Moreover, an approximately 180-kDa sialofucosylated glycoprotein(s) mediated selectin binding in CD44-knockdown cells. Using immunoaffinity chromatography and tandem mass spectrometry, we identify this glycoprotein as the carcinoembryonic antigen (CEA). Blot rolling assays and flow-based adhesion assays using microbeads coated with CEA immunopurified from LS174T colon carcinoma cells and selectins as substrate reveal that CEA possesses E- and L-, but not P-, selectin ligand activity. CEA on CD44-knockdown LS174T cells exhibits higher HECA-452 immunoreactivity than CEA on wild-type cells, suggesting that CEA functions as an alternative acceptor for selectin-binding glycans. The enhanced expression of HECA-452 reactive epitopes on CEA from CD44-knockdown cells correlates with the increased CEA avidity for E- but not L-selectin. Through the generation of stable knockdown cell lines, we demonstrate that CEA serves as an auxiliary L-selectin ligand, which stabilizes L-selectin-dependent cell rolling against fluid shear. Moreover, CEA and CD44v cooperate to mediate colon carcinoma cell adhesion to E- and L-selectin at elevated shear stresses. The novel finding that CEA is an E- and L-selectin ligand may explain the enhanced metastatic potential associated with tumor cell CEA overexpression and the supportive role of selectins in metastasis.
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Affiliation(s)
- Susan N. Thomas
- Department of Chemical and Biomolecular
Engineering, The Johns Hopkins University, Baltimore, Maryland 21218 and the
Departments of Pharmacology and Neuroscience,
The Johns Hopkins University, Baltimore, Maryland 21205
| | - Fei Zhu
- Department of Chemical and Biomolecular
Engineering, The Johns Hopkins University, Baltimore, Maryland 21218 and the
Departments of Pharmacology and Neuroscience,
The Johns Hopkins University, Baltimore, Maryland 21205
| | - Ronald L. Schnaar
- Department of Chemical and Biomolecular
Engineering, The Johns Hopkins University, Baltimore, Maryland 21218 and the
Departments of Pharmacology and Neuroscience,
The Johns Hopkins University, Baltimore, Maryland 21205
| | - Christina S. Alves
- Department of Chemical and Biomolecular
Engineering, The Johns Hopkins University, Baltimore, Maryland 21218 and the
Departments of Pharmacology and Neuroscience,
The Johns Hopkins University, Baltimore, Maryland 21205
| | - Konstantinos Konstantopoulos
- Department of Chemical and Biomolecular
Engineering, The Johns Hopkins University, Baltimore, Maryland 21218 and the
Departments of Pharmacology and Neuroscience,
The Johns Hopkins University, Baltimore, Maryland 21205
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10
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Reyes-Reyes ME, George MD, Roberts JD, Akiyama SK. P-selectin activates integrin-mediated colon carcinoma cell adhesion to fibronectin. Exp Cell Res 2006; 312:4056-69. [PMID: 17056038 PMCID: PMC1853301 DOI: 10.1016/j.yexcr.2006.09.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2006] [Revised: 09/05/2006] [Accepted: 09/07/2006] [Indexed: 01/25/2023]
Abstract
During hematogenous cancer metastasis, tumor cells separate from a primary mass, enter the bloodstream, disperse throughout the body, migrate across vessel walls, and generate distant colonies. The later steps of metastasis superficially resemble leukocyte extravasation, a process initiated by selectin-mediated cell tethering to the blood vessel wall followed by integrin-mediated arrest and transendothelial migration. Some cancer cells express P-selectin ligands and attach to immobilized P-selectin, suggesting that these cells can arrest in blood vessels using sequential selectin- and integrin-mediated adhesion, as do leukocytes. We hypothesize that selectin binding may regulate subsequent integrin-mediated steps in metastasis. Using a model system of cultured Colo 320 human colon adenocarcinoma cells incubated with soluble P-selectin-IgG chimeric protein, we have found that P-selectin can stimulate activation of the alpha(5)beta(1) integrin resulting in a specific increase of adhesion and spreading of these cells on fibronectin substrates. P-selectin binding also induced activation of p38 mitogen-activated protein kinase (p38 MAPK) and phosphatidylinositol 3-kinase (PI3-K). PI3-K inhibitors blocked P-selectin-mediated integrin activation, cell attachment, and cell spreading. Inhibition of p38 MAPK activation blocked cell spreading, but not cell attachment. P-selectin binding also resulted in formation of a signaling complex containing PI3-K and p38 MAPK. These results suggest that P-selectin binding to tumor cells can activate alpha(5)beta(1) integrin via PI3-K and p38 MAPK signaling pathways leading to increased cell adhesion. We propose that P-selectin ligands are important tumor cell signaling molecules that modulate integrin-mediated cell adhesion in the metastatic process.
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Affiliation(s)
- Merit E Reyes-Reyes
- Laboratory of Molecular Carcinogenesis, National Institute of Environmental Health Sciences, NIH, DHHS, Research Triangle Park, NC 27709, USA
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11
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Ludwig RJ, Boehme B, Podda M, Henschler R, Jager E, Tandi C, Boehncke WH, Zollner TM, Kaufmann R, Gille J. Endothelial P-selectin as a target of heparin action in experimental melanoma lung metastasis. Cancer Res 2004; 64:2743-50. [PMID: 15087389 DOI: 10.1158/0008-5472.can-03-1054] [Citation(s) in RCA: 152] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Spontaneous and experimental metastasis can be effectively inhibited by the widely used anticoagulant heparin in different tumor models. At the cellular level, many of the antimetastatic effects of heparin in vivo are due to its action on P-selectin-mediated binding. Whereas previous attention has focused on P-selectin-dependent tumor-cell-platelet interactions in blood-borne metastasis, we sought to address the potential contribution of endothelial P-selectin expression to adhesive events between the microvasculature and melanoma cells in vivo. Transplantation of bone marrow from P-selectin-deficient into wild-type mice conveyed inhibition of ex-perimental melanoma metastasis. However, the extent to which bone marrow-conferred lack of platelet P-selectin expression attenuated melanoma lung metastasis was significantly less than that seen in P-selectin-deficient mice, suggesting that endothelial P-selectin expression may additionally contribute to formation of hematogenous metastases. This assumption was supported by our intravital microscopy studies, in which a significant proportion of melanoma cells were capable of directly interacting with postcapillary venules of the murine ear in a P-selectin-dependent manner. Heparin not only inhibits P-selectin-mediated melanoma cell rolling but also attenuates melanoma metastasis formation in vivo, further supporting the concept that endothelial P-selectin expression may represent an additional target of heparin action in experimental melanoma lung metastasis.
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Affiliation(s)
- Ralf J Ludwig
- Department of Dermatology, Klinikum der J. W. Goethe-Universität, Frankfurt am Main, Germany
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12
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Ma YQ, Geng JG. Obligatory requirement of sulfation for P-selectin binding to human salivary gland carcinoma Acc-M cells and breast carcinoma ZR-75-30 cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2002; 168:1690-6. [PMID: 11823498 DOI: 10.4049/jimmunol.168.4.1690] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Stimulated endothelial cells and activated platelets express P-selectin, which reacts with P-selectin glycoprotein ligand-1 (PSGL-1) for leukocyte rolling on the stimulated endothelial cells and heterotypic aggregation of the activated platelets on leukocytes. P-selectin also binds to several cancer cells in vitro and promotes the growth and metastasis of human colon carcinoma in vivo. The P-selectin/PSGL-1 interaction requires tyrosine sulfation. However, it is unknown whether sulfation is necessary for P-selectin binding to somatic cancer cells. In this study, we show that P-selectin mediated adhesion of Acc-M cells, a cell line derived from a human adenoid cystic carcinoma of salivary gland. These cells had a moderate expression of heparan sulfate-like proteoglycans, but had no detectable expressions of PSGL-1, CD24, Lewis(x), and sialyl Lewis(x). Treatment with sodium chlorate (a sulfation biosynthesis inhibitor), but not 4-methylumbelliferyl-beta-D-xyloside (a proteoglycan biosynthesis inhibitor) or heparinases, reduced adhesion of these cells to P-selectin. Sodium chlorate also inhibited the P-selectin precipitation of the 160-, 54-, and 36-kDa molecules from the cell surface of Acc-M cells. Furthermore, P-selectin could bind to human breast carcinoma ZR-75-30 cells in a sulfation-dependent manner. Our results thus indicate that sulfation is essential for adhesion of nonblood-borne, epithelial-like human cancer cells to P-selectin.
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Affiliation(s)
- Yan-Qing Ma
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
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13
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Li L, Short HJ, Qian KX, Elhammer AP, Geng JG. Characterization of glycoprotein ligands for P-selectin on a human small cell lung cancer cell line NCI-H345. Biochem Biophys Res Commun 2001; 288:637-44. [PMID: 11676490 DOI: 10.1006/bbrc.2001.5806] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
P-selectin (CD62P) is a cell adhesion molecule expressed on stimulated endothelial cells and on activated platelets. It interacts with PSGL-1 (P-selectin glycoprotein ligand-1; CD162) on leukocytes and mediates recruitment of leukocytes during inflammation. P-selectin also binds to several types of cancer cells in vitro and facilitates growth and metastasis of colon carcinoma in vivo. Here we show that P-selectin, but not E-selectin, binds to NCI-H345 cells, a cell line derived from a human small cell lung cancer. EDTA or P7 (a leukocyte adhesion blocking mAb to P-selectin), but not PL5 (a leukocyte adhesion blocking mAb to PSGL-1), can inhibit this binding. P-selectin affinity chromatography can precipitate a approximately 110-kDa major band and a approximately 220-kDa minor band from [3H]-glucosamine-labeled NCI-H345 cells. No expression of PSGL-1 protein and mRNA can be detected in NCI-H345 cells. Taken together, these results suggest that NCI-H345 cells express glycoprotein ligands for P-selectin that are distinct from leukocyte PSGL-1.
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Affiliation(s)
- L Li
- Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai, 200031, China
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14
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Ma YQ, Geng JG. Heparan sulfate-like proteoglycans mediate adhesion of human malignant melanoma A375 cells to P-selectin under flow. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2000; 165:558-65. [PMID: 10861096 DOI: 10.4049/jimmunol.165.1.558] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Selectins, a family of cell adhesion molecules, bind to sialylated and fucosylated carbohydrates, such as sialyl Lewisx (SLex) and its derivatives, as their minimal recognition motif. Here we report that P-selectin bound to human malignant melanoma A375 cells and mediated their adhesion under flow. However, probing with a specific Ab failed to detect any apparent expression of SLex. This finding was bolstered by reduced expression of alpha-1,3-fucosyltransferase VII mRNA and by absence of the cell surface expression of P-selectin glycoprotein ligand-1. Instead, they expressed heparan sulfate-like proteoglycans on their cell surfaces. Treatment with beta-d -xyloside (a proteoglycan biosynthesis inhibitor) or heparinases could reduce the binding of these cells to P-selectin. In the competition assays, heparin, but not other proteoglycans, could abolish the P-selectin recognition. Further, we found that P-selectin could bind specifically to human tongue squamous cancer Tca-8113 cells, which had negative staining of SLex but positive staining of heparan sulfates. Both beta-d -xyloside and heparinases could reduce the binding of P-selectin to Tca-8113 cells. Our results thus indicate that heparan sulfate-like proteoglycans can mediate adhesion of certain types of non-blood borne, "epithelial-like" human cancer cells to P-selectin.
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Affiliation(s)
- Y Q Ma
- Shanghai Institute of Cell Biology, Chinese Academy of Sciences, China
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15
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Abstract
The selectins are a family of intercellular adhesion molecules that mediate the attachment of leukocytes to the endothelial lining of blood vessels. Another biological process that may involve selectins is the adhesion of circulating tumour cells to endothelium in cancer metastasis. This review discusses the evidence for the involvement of E-, P- and L-selectin in the metastasis of different tumour types. It is concluded that, with certain reservations and qualifications, selectins can play a role in metastasis. For example, the evidence for the involvement of E-selectin in breast and colon cancer metastasis is very strong. For the other selectins and tumour types the evidence is less convincing and further investigations are required to clarify the situation. Certainly, selectins are not the only mechanism available for tumours to metastasise. In the future, measurement of selectins could be useful prognostically and manipulation of their levels could lead to new cancer therapies.
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Affiliation(s)
- T Krause
- Department of Clinical Biochemistry, The Medical School, Newcastle upon Tyne, UK
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