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Menezes ME, Das SK, Minn I, Emdad L, Wang XY, Sarkar D, Pomper MG, Fisher PB. Detecting Tumor Metastases: The Road to Therapy Starts Here. Adv Cancer Res 2016; 132:1-44. [PMID: 27613128 DOI: 10.1016/bs.acr.2016.07.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Metastasis is the complex process by which primary tumor cells migrate and establish secondary tumors in an adjacent or distant location in the body. Early detection of metastatic disease and effective therapeutic options for targeting these detected metastases remain impediments to effectively treating patients with advanced cancers. If metastatic lesions are identified early, patients might maximally benefit from effective early therapeutic interventions. Further, monitoring patients whose primary tumors are effectively treated for potential metastatic disease onset is also highly valuable. Finally, patients with metastatic disease can be monitored for efficacy of specific therapeutic interventions through effective metastatic detection techniques. Thus, being able to detect and visualize metastatic lesions is key and provides potential to greatly improve overall patient outcomes. In order to achieve these objectives, researchers have endeavored to mechanistically define the steps involved in the metastatic process as well as ways to effectively detect metastatic progression. We presently overview various preclinical and clinical in vitro and in vivo assays developed to more efficiently detect tumor metastases, which provides the foundation for developing more effective therapies for this invariably fatal component of the cancerous process.
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Affiliation(s)
- M E Menezes
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - S K Das
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - I Minn
- The Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - L Emdad
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - X-Y Wang
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - D Sarkar
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - M G Pomper
- The Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - P B Fisher
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States.
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McFerrin HE, Olson SD, Gutschow MV, Semon JA, Sullivan DE, Prockop DJ. Rapidly self-renewing human multipotent marrow stromal cells (hMSC) express sialyl Lewis X and actively adhere to arterial endothelium in a chick embryo model system. PLoS One 2014; 9:e105411. [PMID: 25144321 PMCID: PMC4140774 DOI: 10.1371/journal.pone.0105411] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 07/23/2014] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND There have been conflicting observations regarding the receptors utilized by human multipotent mesenchymal bone marrow stromal cells (hMSC) to adhere to endothelial cells (EC). To address the discrepancies, we performed experiments with cells prepared with a standardized, low-density protocol preserving a sub-population of small cells that are rapidly self-renewing. METHODS Sialyl Lewis X (SLeX) and α4 integrin expression were determined by flow cytometry. Fucosyltransferase expression was determined by quantitative realtime RT-PCR. Cell adhesion assays were carried out with a panel of endothelial cells from arteries, veins and the microvasculature in vitro. In vivo experiments were performed to determine single cell interactions in the chick embryo chorioallantoic membrane (CAM). The CAM is a well-characterized respiratory organ allowing for time-lapse image acquisition of large numbers of cells treated with blocking antibodies against adhesion molecules expressed on hMSC. RESULTS hMSC expressed α4 integrin, SLeX and fucosyltransferase 4 and adhered to human EC from arteries, veins and the microvasculature under static conditions in vitro. In vivo, hMSC rolled on and adhered to arterioles in the chick embryo CAM, whereas control melanoma cells embolized. Inhibition of α4 integrin and/or SLeX with blocking antibodies reduced rolling and adhesion in arterioles and increased embolism of hMSC. CONCLUSIONS The results demonstrated that rapidly self-renewing hMSC were retained in the CAM because they rolled on and adhered to respiratory arteriolar EC in an α4 integrin- and SLeX-dependent manner. It is therefore important to select cells based on their cell adhesion receptor profile as well as size depending on the intended target of the cell and the injection route.
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Affiliation(s)
- Harris E. McFerrin
- Xavier University of Louisiana, Biology Department, New Orleans, Louisiana, United States of America
- Center for Stem Cell Research and Regenerative Medicine, Tulane University School of Medicine, New Orleans, Louisiana, United States of America
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, Louisiana, United States of America
- * E-mail:
| | - Scott D. Olson
- Program in Regenerative Medicine, University of Texas Medical School at Houston, Houston, Texas, United States of America
| | - Miriam V. Gutschow
- Stanford Department of Bioengineering, Stanford University, Stanford, California, United States of America
| | - Julie A. Semon
- Center for Stem Cell Research and Regenerative Medicine, Tulane University School of Medicine, New Orleans, Louisiana, United States of America
| | - Deborah E. Sullivan
- Center for Stem Cell Research and Regenerative Medicine, Tulane University School of Medicine, New Orleans, Louisiana, United States of America
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, Louisiana, United States of America
| | - Darwin J. Prockop
- Texas A & M Health Science Center College of Medicine Institute for Regenerative Medicine at Scott & White, Temple, Texas, United States of America
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Kain KH, Miller JWI, Jones-Paris CR, Thomason RT, Lewis JD, Bader DM, Barnett JV, Zijlstra A. The chick embryo as an expanding experimental model for cancer and cardiovascular research. Dev Dyn 2013; 243:216-28. [PMID: 24357262 DOI: 10.1002/dvdy.24093] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 10/28/2013] [Accepted: 10/28/2013] [Indexed: 12/17/2022] Open
Abstract
A long and productive history in biomedical research defines the chick as a model for human biology. Fundamental discoveries, including the description of directional circulation propelled by the heart and the link between oncogenes and the formation of cancer, indicate its utility in cardiac biology and cancer. Despite the more recent arrival of several vertebrate and invertebrate animal models during the last century, the chick embryo remains a commonly used model for vertebrate biology and provides a tractable biological template. With new molecular and genetic tools applied to the avian genome, the chick embryo is accelerating the discovery of normal development and elusive disease processes. Moreover, progress in imaging and chick culture technologies is advancing real-time visualization of dynamic biological events, such as tissue morphogenesis, angiogenesis, and cancer metastasis. A rich background of information, coupled with new technologies and relative ease of maintenance, suggest an expanding utility for the chick embryo in cardiac biology and cancer research.
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Ghosh S, Elankumaran S, Puri IK. Mathematical model of the role of intercellular signalling in intercellular cooperation during tumorigenesis. Cell Prolif 2011; 44:192-203. [PMID: 21401761 DOI: 10.1111/j.1365-2184.2011.00739.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES Intercellular cooperation has been hypothesized to enhance cell proliferation during cancer metastasis through autocrine signalling cascades and mathematical models can provide valuable insights into underlying mechanisms of metastatic tumorigenesis. Here, we present a model that incorporates signal-stimulated cell proliferation, and investigate influences of diffusion-driven heterogeneity in signal concentration on proliferation dynamics. MATERIALS AND METHODS Our model incorporates signal production through both autocrine and paracrine pathways, and signal diffusion and loss for a metastasizing cell population at a host site. We use the signalling pathway of IL-6 for illustration where this signalling species forms an intermediate complex with its receptor IL-6R. This in turn forms a heterodimeric complex with transmembrane protein gp130, ultimately resulting in production of downstream signals. Cell population dynamics are taken to follow a modified logistic equation for which the rate term is dependent on local IL-6 concentration. RESULTS AND CONCLUSIONS Our spatiotemporal model agrees closely with experimental results. The model is also able to predict two phenomena typical of metastatic tumorigenesis - host tissue preference and long periods of proliferation dormancy. It confirms that diffusivity of the signalling species in a host tissue plays a significant role during the process. Our results show that the proliferation-apoptosis balance is tipped in favour of the former for host sites that have relatively smaller signal diffusivities.
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Affiliation(s)
- S Ghosh
- Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
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Runnels JM, Carlson AL, Pitsillides C, Thompson B, Wu J, Spencer JA, Kohler JMJ, Azab A, Moreau AS, Rodig SJ, Kung AL, Anderson KC, Ghobrial IM, Lin CP. Optical techniques for tracking multiple myeloma engraftment, growth, and response to therapy. JOURNAL OF BIOMEDICAL OPTICS 2011; 16:011006. [PMID: 21280893 PMCID: PMC3033873 DOI: 10.1117/1.3520571] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Multiple myeloma (MM), the second most common hematological malignancy, initiates from a single site and spreads via circulation to multiple sites in the bone marrow (BM). Methods to track MM cells both in the BM and circulation would be useful for developing new therapeutic strategies to target MM cell spread. We describe the use of complementary optical techniques to track human MM cells expressing both bioluminescent and fluorescent reporters in a mouse xenograft model. Long-term tumor growth and response to therapy are monitored using bioluminescence imaging (BLI), while numbers of circulating tumor cells are detected by in-vivo flow cytometry. Intravital microscopy is used to detect early seeding of MM cells to the BM, as well as residual cancer cells that remain in the BM after the bulk of the tumor is eradicated following drug treatment. Thus, intravital microscopy provides a powerful, albeit invasive, means to study cellular processes in vivo at the very early stage of the disease process and at the very late stage of therapeutic intervention when the tumor burden is too small to be detected by other imaging methods.
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Affiliation(s)
- Judith M Runnels
- Massachusetts General Hospital, Wellman Center for Photomedicine, Advanced Microscopy Program, Harvard Medical School, Boston, Massachusetts 02114, USA
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Athanassiadou P, Grapsa D. Bone marrow micrometastases in different solid tumors: Pathogenesis and importance. Surg Oncol 2008; 17:153-64. [PMID: 18511264 DOI: 10.1016/j.suronc.2008.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Athanassiadou P, Grapsa D. Recent advances in the detection of bone marrow micrometastases: A promising area for research or just another false hope? A review of the literature. Cancer Metastasis Rev 2007; 25:507-19. [PMID: 17160555 DOI: 10.1007/s10555-006-9030-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The presence of early disseminated tumor cells (DTC), otherwise termed micrometastases or minimal residual disease, in the bone marrow (BM), or other secondary compartments, such as the blood and the lymph nodes, is the main reason for recurrence of patients with early stage epithelial cancers after "curative" resection of the primary tumor. There is increasing evidence, that the detection of DTC in BM aspirates may provide additional and independent prognostic information and aid in the stratification of these patients for adjuvant clinical treatment. However, the clinical relevance of micrometastases has not yet been firmly established. In addition, the molecular events and interactions that prevail in early metastatic disease and determine the formation or not of overt metastases remain poorly understood. The methods currently used for the detection of micrometastatic cells include extremely sensitive immunocytochemical and molecular assays, often in conjunction with enrichment techniques for the purification of tumor cells and additional increase of their sensitivity. Nevertheless, the specificity of these methods is mostly inadequate. After the impressive advances of molecular cytogenetics, a highly accurate and global assessment of the genetic status of tumors is now possible. Therefore, the greatest challenge of our time is the application of these novel technologies for the clarification of the key molecular events that initiate metastatic spread. This will further enable us to identify the highly specific and sensitive diagnostic and prognostic markers as well as the therapeutic targets which are so urgently needed.
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Affiliation(s)
- Pauline Athanassiadou
- Pathology Laboratory-Cytology Department, Medical School, Athens University, 75 Mikras Asias Str., 11527, Athens, Greece
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Abstract
The activity of a set of peptidases (proteases) involved in cancer progression is collectively known as the cancer 'degradome'. Invasion and metastasis were initially considered as late events in cancer development and the processes in which proteases were involved. However, recent studies indicate that invasion and metastasis are not late events, but can occur during early stages as well. Moreover, other processes occurring in various stages of cancer progression are also protease-dependent, such as (upregulation of) cell proliferation, (downregulation of) apoptosis, involvement of white blood cells, angiogenesis and induction of multi-drug resistance. Proteolytic activity in tumours is regulated in a complex manner, as both genetically unstable cancer cells and stable stromal cells, such as fibroblasts, endothelial cells and inflammatory cells, are involved. In vitro studies and studies using animal models have clearly shown protease dependency of many processes in carcinogenesis. However, clinical trials using protease inhibitors have thus far been unsuccessful except for a few applications of matrix metalloprotease (MMP) inhibitors when used in combination with cytostatic anticancer agents and/or in the early stages of cancer. Antithrombotics, such as low-molecular-weight heparin and warfarin, were also successful in clinical trials, probably by interfering with proteases of the coagulation cascade. The two-way association between cancer and thrombosis has long been recognised in the clinic. The poor outcome of other clinical trials of protease inhibitors is probably due to the late stages of cancer of the patient populations included, and the limited understanding of the complex regulation and effects of the activity of the various proteases in tumours depending on, among others, tumour type and stage, interactions between the cancer cells, other cells and the extracellular matrix in tumours. Therefore, a better fundamental understanding of the proteolytic complexity in tumours is essential before clinical trials can be rationally designed. At present, antithrombotics, the urokinase-type plasminogen activator system, the membrane-bound membrane-type 1-MMP, cathepsin L and the proteasome seem the most promising candidates as targets for anticancer strategies in early stages of cancer in combination with cytotoxic drugs. Moreover, metronomic therapy is an attractive approach using low doses of inhibitors for prolonged periods of time without interruption to specifically target endothelial cells that are involved in angiogenesis.
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Affiliation(s)
- Tamara T Lah
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Veccna pot 111, 1000 Ljubljana, Slovenia.
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Cai Z, Chiu JF, He QY. Application of proteomics in the study of tumor metastasis. GENOMICS PROTEOMICS & BIOINFORMATICS 2005; 2:152-66. [PMID: 15862116 PMCID: PMC5172469 DOI: 10.1016/s1672-0229(04)02021-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Tumor metastasis is the dominant cause of death in cancer patients. However, the molecular and cellular mechanisms underlying tumor metastasis are still elusive. The identification of protein molecules with their expressions correlated to the metastatic process would help to understand the metastatic mechanisms and thus facilitate the development of strategies for the therapeutic interventions and clinical management of cancer. Proteomics is a systematic research approach aiming to provide the global characterization of protein expression and function under given conditions. Proteomic technology has been widely used in biomarker discovery and pathogenetic studies including tumor metastasis. This article provides a brief review of the application of proteomics in identifying molecular factors in tumor metastasis process. The combination of proteomics with other experimental approaches in biochemistry, cell biology, molecular genetics and chemistry, together with the development of new technologies and improvements in existing methodologies will continue to extend its application in studying cancer metastasis.
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Affiliation(s)
- Zhen Cai
- Department of Surgery, The University of Hong Kong, Hong Kong, China
| | - Jen-Fu Chiu
- Open Laboratory of Chemical Biology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The University of Hong Kong, Hong Kong, China
- Institute of Molecular Biology, The University of Hong Kong, Hong Kong, China
| | - Qing-Yu He
- Open Laboratory of Chemical Biology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The University of Hong Kong, Hong Kong, China
- Department of Chemistry, The University of Hong Kong, Hong Kong, China
- Corresponding author.
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Wang X, Ferreira AM, Shao Q, Laird DW, Sandig M. Beta3 integrins facilitate matrix interactions during transendothelial migration of PC3 prostate tumor cells. Prostate 2005; 63:65-80. [PMID: 15468167 DOI: 10.1002/pros.20168] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND beta3 integrins play a role in metastatic progression of prostate cancer by mediating adhesion of cancer cells to endothelium and migration through extracellular matrix (ECM). However, the role of beta3 integrins during transendothelial migration (TEM) of prostate tumor cells is poorly understood. We examined the role of beta3 integrins in TEM of PC3 human prostate cancer cells through a monolayer of human lung microvascular endothelial cells (HLMVECs). METHODS PC3 cells were challenged with beta3 integrin antibodies or antisense nucleotides and their efficiency to migrate through monolayers of endothelial cells (ECs) was assessed using confocal microscopy. RESULTS beta3 integrins in PC3 cells are not localized in focal contacts and their blockade significantly inhibited TEM by over 50% preferentially during late stages of migration. Formation of PC3 cell pseudopodia on matrigel was significantly reduced by beta3 integrin antisense oligonucleotides. CONCLUSIONS beta3 integrins play important roles during TEM of PC3 cells while interacting with the matrix underneath the endothelium. These interactions are independent of the ability to cluster beta3 integrins into focal adhesions.
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Affiliation(s)
- Xiaowei Wang
- Department of Anatomy and Cell Biology, University of Western Ontario, London, Ontario, Canada
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11
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Chantrain CF, Shimada H, Jodele S, Groshen S, Ye W, Shalinsky DR, Werb Z, Coussens LM, DeClerck YA. Stromal Matrix Metalloproteinase-9 Regulates the Vascular Architecture in Neuroblastoma by Promoting Pericyte Recruitment. Cancer Res 2004; 64:1675-86. [PMID: 14996727 DOI: 10.1158/0008-5472.can-03-0160] [Citation(s) in RCA: 155] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Advanced stages of neuroblastoma show increased expression of matrix metalloproteinases MMP-2 and MMP-9, that have been implicated in many steps of tumor progression, suggesting that they play a contributory role. Using pharmacological and genetic approaches, we have examined the role of these MMPs in progression of SK-N-BE (2).10 human neuroblastoma tumors orthotopically xenotransplanted into immunodeficient mice. Mice treated with Prinomastat, a synthetic inhibitor of MMPs, showed an inhibition of tumor cell proliferation in implanted tumors and a prolonged survival (50 versus 39 days in control group, P < 0.035). Treatment with Prinomastat did not affect formation of liver metastases (P = 0.52) but inhibited intravascular colonization by the tumor cells in the lung by 73.8% (P = 0.03) and angiogenesis in both primary tumors and experimental liver metastases. The primary tumors from Prinomastat-treated mice showed a 39.3% reduction in endothelial area detected by PECAM/CD31 staining in tumor sections (P < 0.001), primarily due to the presence of smaller vessels (P = 0.004). MMP-2 is expressed by neuroblastoma tumor cells and stromal cells, whereas MMP-9 is exclusively expressed by stromal cells, particularly vascular cells. To examine the contribution of MMP-9 to tumor angiogenesis, we generated RAG1/MMP-9 double-deficient mice. We observed a significant inhibition of angiogenesis in the immunodeficient RAG1/MMP-9 double-deficient mice orthotopically implanted with tumor cells (P = 0.043) or implanted s.c. with a mixture of tumor cells and Matrigel (P < 0.001). Using an FITC-labeled lectin, we demonstrated an inhibition in the architecture of the tumor vasculature in MMP-9-deficient mice, resulting in fewer and smaller blood vessels. These changes were associated with a 48% decrease in pericytes present along microvessels. Taken together, the data demonstrate that in neuroblastoma, stromally derived MMP-9 contributes to angiogenesis by promoting blood vessel morphogenesis and pericyte recruitment.
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Affiliation(s)
- Christophe F Chantrain
- Department of Pediatrics and Biochemistry and Molecular Biology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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Mook ORF, Van Marle J, Vreeling-Sindelárová H, Jonges R, Frederiks WM, Van Noorden CJF. Visualization of early events in tumor formation of eGFP-transfected rat colon cancer cells in liver. Hepatology 2003; 38:295-304. [PMID: 12883473 DOI: 10.1053/jhep.2003.50297] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Colon cancer preferentially metastasizes to the liver. To determine cellular backgrounds of this preference, we generated an enhanced green fluorescent protein (eGFP)-expressing rat adenocarcinoma cell line (CC531s) that forms metastases in rat liver after administration to the portal vein. Intravital videomicroscopy (IVVM) was used to visualize early events in the development of tumors in livers of live animals from the time of injection of the cancer cells up to 4 days afterward. Based on information obtained with IVVM, tissue areas were selected for further analysis using confocal laser scanning microscopy (CLSM), electron microscopy (EM), and electron tomography. It was shown that initial arrest of colon cancer cells in sinusoids of the liver was due to size restriction. Adhesion of cancer cells to endothelial cells was never found. Instead, endothelial cells retracted rapidly and interactions were observed only between cancer cells and hepatocytes. Tumors developed exclusively intravascularly during the first 4 days. In conclusion, initial steps in the classic metastatic cascade such as adhesion to endothelium and extravasation are not essential for colon cancer metastasis in liver.
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Affiliation(s)
- Olaf R F Mook
- Department of Cell Biology and Histology, Academic Medical Centre, Amsterdam, The Netherlands
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Kuo WH, Yang SF, Chu SC, Lu SO, Chou FP, Hsieh YS. Differential inductions of matrix metalloproteinase-2 and -9 in host tissues during the growth of ascitic sarcoma 180 cells in mice. Cancer Lett 2003; 189:103-12. [PMID: 12445684 DOI: 10.1016/s0304-3835(02)00323-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study was designed to investigate the changes of matrix metalloproteinase (MMP)-2 and MMP-9 in host tissues in response to the growth of tumor cells. Zymogram showed that the responses of both MMPs in the host tissues were differential but concurrent. The liver, a prime target of metastases, had profound increases in MMP-2 and -9. The other usual targets had significant increases in MMP-9. MMP-2 was specifically increased in the spleen. These results indicate that the growth of tumor cells at the primary site could influence the MMP system of host tissues located at the distance.
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Affiliation(s)
- Wu-Hsien Kuo
- Division of Gastroenterology, Department of Internal Medicine, Armed-Force Taichung General Hospital, No 348, Section 2, Chung Shan Road, Taiping City, Taichung 411, Taiwan
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MacDonald IC, Groom AC, Chambers AF. Cancer spread and micrometastasis development: quantitative approaches for in vivo models. Bioessays 2002; 24:885-93. [PMID: 12325121 DOI: 10.1002/bies.10156] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Death from cancer is usually due to metastasis. Fortunately, most cells that escape from a primary tumor fail to form metastases. Identifying reasons for this failure will help development of anti-metastatic therapies. Intravital videomicroscopy (IVVM) can be used to observe cancer cells injected into live animals. Co-injected microspheres can be used to assess cell survival. These techniques have been used to show that circulating tumor cells generally arrest in the microcirculation and may extravasate with high efficiency. While many tumor cells may survive in a secondary site, only a small subset form micrometastases and only a subset of these micrometastases persist to form vascularized macrometastases. Furthermore, solitary tumor cells may remain dormant for long periods of time in secondary sites. These findings suggest that metastatic growth and angiogenesis are prime targets for anti-metastatic therapy.
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Affiliation(s)
- Ian C MacDonald
- Department of Medical Biophysics, University of Western Ontario, London, Canada
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Abstract
Metastases, rather than primary tumours, are responsible for most cancer deaths. To prevent these deaths, improved ways to treat metastatic disease are needed. Blood flow and other mechanical factors influence the delivery of cancer cells to specific organs, whereas molecular interactions between the cancer cells and the new organ influence the probability that the cells will grow there. Inhibition of the growth of metastases in secondary sites offers a promising approach for cancer therapy.
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Affiliation(s)
- Ann F Chambers
- London Regional Cancer Centre, London, Ontario N6A 4L6, Canada.
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EFFICIENT CARBOPLATIN SINGLE THERAPY IN A MOUSE MODEL OF HUMAN TESTICULAR NONSEMINOMATOUS GERM CELL TUMOR. J Urol 2002. [DOI: 10.1097/00005392-200201000-00103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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AHARINEJAD SEYEDHOSSEIN, FINK MELANIE, ABRI HOJATOLLAH, NEDWED STEPHAN, SCHLAG MICHAELG, MACFELDA KARIN, ABRAHAM DIETMAR, MIKSOVSKY AURELIA, HÖLTL EVA, HÖLTL WOLFGANG. EFFICIENT CARBOPLATIN SINGLE THERAPY IN A MOUSE MODEL OF HUMAN TESTICULAR NONSEMINOMATOUS GERM CELL TUMOR. J Urol 2002. [DOI: 10.1016/s0022-5347(05)65470-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- SEYEDHOSSEIN AHARINEJAD
- From the Laboratory for Cardiovascular Research, Department of Anatomy, Center for Biomedical Research, University of Vienna, Department of Internal Medicine, St. Elisabeth Hospital and Department of Urology, KFJ-Hospital, Vienna, Austria
| | - MELANIE FINK
- From the Laboratory for Cardiovascular Research, Department of Anatomy, Center for Biomedical Research, University of Vienna, Department of Internal Medicine, St. Elisabeth Hospital and Department of Urology, KFJ-Hospital, Vienna, Austria
| | - HOJATOLLAH ABRI
- From the Laboratory for Cardiovascular Research, Department of Anatomy, Center for Biomedical Research, University of Vienna, Department of Internal Medicine, St. Elisabeth Hospital and Department of Urology, KFJ-Hospital, Vienna, Austria
| | - STEPHAN NEDWED
- From the Laboratory for Cardiovascular Research, Department of Anatomy, Center for Biomedical Research, University of Vienna, Department of Internal Medicine, St. Elisabeth Hospital and Department of Urology, KFJ-Hospital, Vienna, Austria
| | - MICHAEL G. SCHLAG
- From the Laboratory for Cardiovascular Research, Department of Anatomy, Center for Biomedical Research, University of Vienna, Department of Internal Medicine, St. Elisabeth Hospital and Department of Urology, KFJ-Hospital, Vienna, Austria
| | - KARIN MACFELDA
- From the Laboratory for Cardiovascular Research, Department of Anatomy, Center for Biomedical Research, University of Vienna, Department of Internal Medicine, St. Elisabeth Hospital and Department of Urology, KFJ-Hospital, Vienna, Austria
| | - DIETMAR ABRAHAM
- From the Laboratory for Cardiovascular Research, Department of Anatomy, Center for Biomedical Research, University of Vienna, Department of Internal Medicine, St. Elisabeth Hospital and Department of Urology, KFJ-Hospital, Vienna, Austria
| | - AURELIA MIKSOVSKY
- From the Laboratory for Cardiovascular Research, Department of Anatomy, Center for Biomedical Research, University of Vienna, Department of Internal Medicine, St. Elisabeth Hospital and Department of Urology, KFJ-Hospital, Vienna, Austria
| | - EVA HÖLTL
- From the Laboratory for Cardiovascular Research, Department of Anatomy, Center for Biomedical Research, University of Vienna, Department of Internal Medicine, St. Elisabeth Hospital and Department of Urology, KFJ-Hospital, Vienna, Austria
| | - WOLFGANG HÖLTL
- From the Laboratory for Cardiovascular Research, Department of Anatomy, Center for Biomedical Research, University of Vienna, Department of Internal Medicine, St. Elisabeth Hospital and Department of Urology, KFJ-Hospital, Vienna, Austria
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Affiliation(s)
- C P Webb
- Van Andel Research Institute, Grand Rapids, Michigan 49503, USA
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Chambers AF, Naumov GN, Varghese HJ, Nadkarni KV, MacDonald IC, Groom AC. Critical Steps in Hematogenous Metastasis. Surg Oncol Clin N Am 2001. [DOI: 10.1016/s1055-3207(18)30063-2] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Chambers AF, Naumov GN, Vantyghem SA, Tuck AB. Molecular biology of breast cancer metastasis. Clinical implications of experimental studies on metastatic inefficiency. Breast Cancer Res 2000; 2:400-7. [PMID: 11250733 PMCID: PMC138662 DOI: 10.1186/bcr86] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2000] [Revised: 02/10/2000] [Accepted: 03/20/2000] [Indexed: 01/16/2023] Open
Abstract
Recent technological advances have led to an increasing ability to detect isolated tumour cells and groups of tumour cells in patients' blood, lymph nodes or bone marrow. However, the clinical significance of these cells is unclear. Should they be considered as evidence of metastasis, necessitating aggressive treatment, or are they in some cases unrelated to clinical outcome? Quantitative experimental studies on the basic biology of metastatic inefficiency are providing clues that may help in understanding the significance of these cells. This understanding will be of use in guiding clinical studies to assess the significance of isolated tumour cells and micrometastases in cancer patients.
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Affiliation(s)
- A F Chambers
- London Regional Cancer Centre, London, Ontario, Canada.
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Abstract
Angiogenesis, the development of new blood vessels, is crucial for the growth of both primary tumors and metastases beyond a minimal size and the vasculature of tumors facilitates their metastatic spread. Inhibition of angiogenesis is thus seen as a potentially useful approach to anti-metastasis therapy, and is an area of active research and development. Here we discuss this therapeutic approach in the context of breast cancer. An overview of the contribution of angiogenesis to tumor development is provided and current treatment options for breast cancer are briefly summarized. Assessment of angiogenesis in primary breast tumors has been shown to provide independent prognostic information. There are opportunities for the application of anti-angiogenesis therapeutic strategies in the treatment of breast cancer. Clinical trial design must take into account the unique properties of anti-angiogenic agents to fully assess their potential clinical benefit.
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Affiliation(s)
- D Rayson
- Department of Oncology, University of Western Ontario, London, Canada
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Naumov GN, Wilson SM, MacDonald IC, Schmidt EE, Morris VL, Groom AC, Hoffman RM, Chambers AF. Cellular expression of green fluorescent protein, coupled with high-resolution in vivo videomicroscopy, to monitor steps in tumor metastasis. J Cell Sci 1999; 112 ( Pt 12):1835-42. [PMID: 10341203 DOI: 10.1242/jcs.112.12.1835] [Citation(s) in RCA: 143] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
High resolution intravital videomicroscopy has provided a powerful tool for directly observing steps in the metastatic process, and for clarifying molecular mechanisms of metastasis and modes of action of anti-metastasis therapeutics. Cells previously have been identified in vivo using exogenously added fluorescent labels, limiting observations to a few cell divisions, or by natural markers (e.g. melanin) expressed only by specific cell types. Here we tested the utility of stable green fluorescent protein (GFP)-transfected cells for monitoring and quantifying sequential steps in the metastatic process. Using CHO-K1 cells that stably express GFP, we document the visualization and quantification by intravital videomicroscopy of sequential steps in metastasis within mouse liver, from initial arrest of cells in the microvasculature to the growth and angiogenesis of metastases. Individual, non-dividing cells, as well as micro- and macrometastases could clearly be detected and quantified, as could fine cellular details such as pseudopodial projections, even after extended periods of in vivo growth. We quantified the size distribution of micrometastases and their locations relative to the liver surface using 50 micrometer thick formalin-fixed tissue sections. The data suggest preferential growth and survival of micrometastases near the liver surface. Furthermore, we observed a small population of single cells that persisted over the 11 day observation period, which may represent dormant cells with potential for subsequent proliferation. This study demonstrates the advantages of GFP-expressing cells, coupled with real-time high resolution videomicroscopy, for long-term in vivo studies to visualize and quantify sequential steps of the metastatic process.
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Affiliation(s)
- G N Naumov
- Departments of Medical Biophysics, Microbiology and Immunology, and Oncology, University of Western Ontario, London, Ontario, Canada N6A 5C1
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