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Roy R, Chatterjee N, Khan MS, Sultana F, Roy A, Naskar S, Guha R, Sen S, Chakrabarti J, Chatterjee BP, Panda CK, Dutta S. High prevalence of CD44 and its ligand low molecular weight hyaluronan in plasma of HNSCC patients: clinical significance. Mol Biol Rep 2024; 51:157. [PMID: 38252332 DOI: 10.1007/s11033-023-08950-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/08/2023] [Indexed: 01/23/2024]
Abstract
BACKGROUND This study aims to evaluate the role of cancer stem cell marker, CD44, and its ligand HA as potential molecular biomarker for early detection of HNSCC. METHODS AND RESULTS The expression profile (mRNA/Protein) of CD44 variants were analysed in primary HNSCC lesions and plasma of the patients. Then, prevalence of HA variants was analysed in plasma of the patients. The mRNA expression of CD44 variants, CD44S and CD44v3, were significantly high in both early (stage I/II) and late (stage III/IV) invasive lesions, with predominant expression of CD44v3 in the late-stage lesions. In plasma of HNSCC patients, increased levels of SolCD44, CD44-ICD and unique 62 KD CD44 variants with respect to standard CD44S were seen, in comparison to their prevalence in plasma of normal individuals. The abundance of CD44-ICD and 62 KD variants were significantly high in plasma of late stage HNSCC patients. Interestingly, significantly high level of low molecular weight HA(LMW HA) with respect to high molecular weight HA(HMW HA) was seen in plasma of HNSCC patients irrespective of clinical stages. On the contrary, high HMW HA level in plasma of normal individuals was seen. The high level of LMW HA in plasma of HNSCC patients might be due to combinatorial effect of increased mRNA expression of HA synthesizing enzyme HAS1/2/3 and HA degrading enzyme HYAL1/2, as seen in the primary HNSCC samples. CONCLUSION Thus, our data revealed the importance of specific CD44 and HA variants in plasma of HNSCC patients during its development as potential non-invasive molecular biomarker of the disease.
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Affiliation(s)
- Rituparna Roy
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Nilanjana Chatterjee
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Md Sadi Khan
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Farhin Sultana
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Arindam Roy
- Department of Surgical Oncology, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Sukanya Naskar
- Department of Head and Neck Surgical Oncology, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Rajdeep Guha
- Department of Head and Neck Surgical Oncology, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Sagar Sen
- Department of Surgical Oncology, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Jayanta Chakrabarti
- Department of Surgical Oncology, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Bishnu Pada Chatterjee
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Chinmay Kumar Panda
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India.
| | - Sankhadeep Dutta
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India.
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Kałuzińska-Kołat Ż, Kołat D, Kośla K, Płuciennik E, Bednarek AK. Delineating the glioblastoma stemness by genes involved in cytoskeletal rearrangements and metabolic alterations. World J Stem Cells 2023; 15:302-322. [PMID: 37342224 PMCID: PMC10277965 DOI: 10.4252/wjsc.v15.i5.302] [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: 12/10/2022] [Revised: 02/03/2023] [Accepted: 03/08/2023] [Indexed: 05/26/2023] Open
Abstract
Literature data on glioblastoma ongoingly underline the link between metabolism and cancer stemness, the latter is one responsible for potentiating the resistance to treatment, inter alia due to increased invasiveness. In recent years, glioblastoma stemness research has bashfully introduced a key aspect of cytoskeletal rearrangements, whereas the impact of the cytoskeleton on invasiveness is well known. Although non-stem glioblastoma cells are less invasive than glioblastoma stem cells (GSCs), these cells also acquire stemness with greater ease if characterized as invasive cells and not tumor core cells. This suggests that glioblastoma stemness should be further investigated for any phenomena related to the cytoskeleton and metabolism, as they may provide new invasion-related insights. Previously, we proved that interplay between metabolism and cytoskeleton existed in glioblastoma. Despite searching for cytoskeleton-related processes in which the investigated genes might have been involved, not only did we stumble across the relation to metabolism but also reported genes that were found to be implicated in stemness. Thus, dedicated research on these genes in GSCs seems justifiable and might reveal novel directions and/or biomarkers that could be utilized in the future. Herein, we review the previously identified cytoskeleton/metabolism-related genes through the prism of glioblastoma stemness.
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Affiliation(s)
- Żaneta Kałuzińska-Kołat
- Department of Experimental Surgery, Medical University of Lodz, Lodz 90-136, Lodzkie, Poland
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Damian Kołat
- Department of Experimental Surgery, Medical University of Lodz, Lodz 90-136, Lodzkie, Poland
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Katarzyna Kośla
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Elżbieta Płuciennik
- Department of Functional Genomics, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Andrzej K Bednarek
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
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Wöhner B, Li W, Hey S, Drobny A, Werny L, Becker-Pauly C, Lucius R, Zunke F, Linder S, Arnold P. Proteolysis of CD44 at the cell surface controls a downstream protease network. Front Mol Biosci 2023; 10:1026810. [PMID: 36876041 PMCID: PMC9981664 DOI: 10.3389/fmolb.2023.1026810] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 01/31/2023] [Indexed: 02/19/2023] Open
Abstract
The cell surface receptor cluster of differentiation 44 (CD44) is the main hyaluronan receptor of the human body. At the cell surface, it can be proteolytically processed by different proteases and was shown to interact with different matrix metalloproteinases. Upon proteolytic processing of CD44 and generation of a C-terminal fragment (CTF), an intracellular domain (ICD) is released after intramembranous cleavage by the γ-secretase complex. This intracellular domain then translocates to the nucleus and induces transcriptional activation of target genes. In the past CD44 was identified as a risk gene for different tumor entities and a switch in CD44 isoform expression towards isoform CD44s associates with epithelial to mesenchymal transition (EMT) and cancer cell invasion. Here, we introduce meprin β as a new sheddase of CD44 and use a CRISPR/Cas9 approach to deplete CD44 and its sheddases ADAM10 and MMP14 in HeLa cells. We here identify a regulatory loop at the transcriptional level between ADAM10, CD44, MMP14 and MMP2. We show that this interplay is not only present in our cell model, but also across different human tissues as deduced from GTEx (Gene Tissue Expression) data. Furthermore, we identify a close relation between CD44 and MMP14 that is also reflected in functional assays for cell proliferation, spheroid formation, migration and adhesion.
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Affiliation(s)
- Birte Wöhner
- Anatomical Institute, Christian-Albrechts-University Kiel, Kiel, Germany
| | - Wenjia Li
- Institute of Functional and Clinical Anatomy, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Sven Hey
- Institute for Medical Microbiology, Virology, and Hygiene, University Medical Center Eppendorf, Hamburg, Germany
| | - Alice Drobny
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Ludwig Werny
- Biochemical Institute, Christian-Albrechts-University Kiel, Kiel, Germany
| | | | - Ralph Lucius
- Anatomical Institute, Christian-Albrechts-University Kiel, Kiel, Germany
| | - Friederike Zunke
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Stefan Linder
- Institute for Medical Microbiology, Virology, and Hygiene, University Medical Center Eppendorf, Hamburg, Germany
| | - Philipp Arnold
- Institute of Functional and Clinical Anatomy, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
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4
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Dubois F, Bazille C, Levallet J, Maille E, Brosseau S, Madelaine J, Bergot E, Zalcman G, Levallet G. Molecular Alterations in Malignant Pleural Mesothelioma: A Hope for Effective Treatment by Targeting YAP. Target Oncol 2022; 17:407-431. [PMID: 35906513 PMCID: PMC9345804 DOI: 10.1007/s11523-022-00900-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2022] [Indexed: 01/11/2023]
Abstract
Malignant pleural mesothelioma is a rare and aggressive neoplasm, which has primarily been attributed to the exposure to asbestos fibers (83% of cases); yet, despite a ban of using asbestos in many countries, the incidence of malignant pleural mesothelioma failed to decline worldwide. While little progress has been made in malignant pleural mesothelioma diagnosis, bevacizumab at first, then followed by double immunotherapy (nivolumab plus ipilumumab), were all shown to improve survival in large phase III randomized trials. The morphological analysis of the histological subtyping remains the primary indicator for therapeutic decision making at an advanced disease stage, while a platinum-based chemotherapy regimen combined with pemetrexed, either with or without bevacizumab, is still the main treatment option. Consequently, malignant pleural mesothelioma still represents a significant health concern owing to poor median survival (12-18 months). Given this context, both diagnosis and therapy improvements require better knowledge of the molecular mechanisms underlying malignant pleural mesothelioma's carcinogenesis and progression. Hence, the Hippo pathway in malignant pleural mesothelioma initiation and progression has recently received increasing attention, as the aberrant expression of its core components may be closely related to patient prognosis. The purpose of this review was to provide a critical analysis of our current knowledge on these topics, the main focus being on the available evidence concerning the role of each Hippo pathway's member as a promising biomarker, enabling detection of the disease at earlier stages and thus improving prognosis.
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Affiliation(s)
- Fatéméh Dubois
- Normandie University, UNICAEN, CNRS, ISTCT Unit, Avenue H. Becquerel, 14074, Caen, France.,Department of Pathology, CHU de Caen, Caen, France.,Federative Structure of Cyto-Molecular Oncogenetics (SF-MOCAE), CHU de Caen, Caen, France
| | - Céline Bazille
- Normandie University, UNICAEN, CNRS, ISTCT Unit, Avenue H. Becquerel, 14074, Caen, France.,Department of Pathology, CHU de Caen, Caen, France
| | - Jérôme Levallet
- Normandie University, UNICAEN, CNRS, ISTCT Unit, Avenue H. Becquerel, 14074, Caen, France
| | - Elodie Maille
- Normandie University, UNICAEN, CNRS, ISTCT Unit, Avenue H. Becquerel, 14074, Caen, France
| | - Solenn Brosseau
- Department of Thoracic Oncology and CIC1425, Hospital Bichat-Claude Bernard, Assistance Publique Hôpitaux de Paris, Université Paris-Diderot, Paris, France.,U830 INSERM "Genetics and Biology of Cancers, A.R.T Group", Curie Institute, Paris, France
| | - Jeannick Madelaine
- Department of Pulmonology and Thoracic Oncology, CHU de Caen, Caen, France
| | - Emmanuel Bergot
- Normandie University, UNICAEN, CNRS, ISTCT Unit, Avenue H. Becquerel, 14074, Caen, France.,Department of Pulmonology and Thoracic Oncology, CHU de Caen, Caen, France
| | - Gérard Zalcman
- Department of Thoracic Oncology and CIC1425, Hospital Bichat-Claude Bernard, Assistance Publique Hôpitaux de Paris, Université Paris-Diderot, Paris, France.,U830 INSERM "Genetics and Biology of Cancers, A.R.T Group", Curie Institute, Paris, France
| | - Guénaëlle Levallet
- Normandie University, UNICAEN, CNRS, ISTCT Unit, Avenue H. Becquerel, 14074, Caen, France. .,Department of Pathology, CHU de Caen, Caen, France. .,Federative Structure of Cyto-Molecular Oncogenetics (SF-MOCAE), CHU de Caen, Caen, France.
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Kaur G, Rogers J, Rashdan NA, Cruz-Topete D, Pattillo CB, Hartson SD, Harris NR. Hyperglycemia-induced effects on glycocalyx components in the retina. Exp Eye Res 2021; 213:108846. [PMID: 34801534 PMCID: PMC8665121 DOI: 10.1016/j.exer.2021.108846] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 11/19/2022]
Abstract
PURPOSE Diabetic retinopathy is a vision-threatening complication of diabetes characterized by endothelial injury and vascular dysfunction. The loss of the endothelial glycocalyx, a dynamic layer lining all endothelial cells, contributes to several microvascular pathologies, including an increase in vascular permeability, leukocyte plugging, and capillary occlusion, and may drive the progression of retinopathy. Previously, a significant decrease in glycocalyx thickness has been observed in diabetic retinas. However, the effects of diabetes on specific components of the retinal glycocalyx have not yet been studied. Therefore, the aim of our study was to investigate changes in synthesis, expression, and shedding of retinal glycocalyx components induced by hyperglycemia, which could provide a novel therapeutic target for diabetic retinopathy. METHODS Primary rat retinal microvascular endothelial cells (RRMECs) were grown under normal glucose (5 mM) or high-glucose (25 mM) conditions for 6 days. The mRNA and protein levels of the glycocalyx components were examined using qRT-PCR and Western blot analysis, respectively. Further, mass spectrometry was used to analyze protein intensities of core proteins. In addition, the streptozotocin-induced Type 1 diabetic rat model was used to study changes in the expression of the retinal glycocalyx in vivo. The shedding of the glycocalyx was studied in both culture medium and in plasma using Western blot analysis. RESULTS A significant increase in the shedding of syndecan-1 and CD44 was observed both in vitro and in vivo under high-glucose conditions. The mRNA levels of syndecan-3 were significantly lower in the RRMECs grown under high glucose conditions, whereas those of syndecan-1, syndecan-2, syndecan-4, glypican-1, glypican-3, and CD44 were significantly higher. The protein expression of syndecan-3 and glypican-1 in RRMECs was reduced considerably following exposure to high glucose, whereas that of syndecan-1 and CD44 increased significantly. In addition, mass spectrometry data also suggests a significant increase in syndecan-4 and a significant decrease in glypican-3 protein levels with high glucose stimulation. In vivo, our data also suggest a significant decrease in the mRNA transcripts of syndecan-3 and an increase in mRNA levels of glypican-1 and CD44 in the retinas of diabetic rats. The diabetic rats exhibited a significant reduction in the retinal expression of syndecan-3 and CD44. However, the expression of syndecan-1 and glypican-1 increased significantly in the diabetic retina. CONCLUSIONS One of the main findings of our study was the considerable diversity of glucose-induced changes in expression and shedding of various components of endothelial glycocalyx, for example, increased endothelial and retinal syndecan-1, but decreased endothelial and retinal syndecan-3. This indicates that the reported decrease in the retinal glycocalyx in diabetes in not a result of a non-specific shedding mechanism. Moreover, mRNA measurements indicated a similar diversity, with increases in endothelial and/or retinal levels of syndecan-1, glypican-1, and CD44, but a decrease for syndecan-3, with these increases in mRNA potentially a compensatory reaction to the overall loss of glycocalyx.
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Affiliation(s)
- Gaganpreet Kaur
- Louisiana State University Health Science Center-Shreveport, LA, Department of Molecular and Cellular Physiology, USA
| | - Janet Rogers
- Oklahoma State University, OK, Department of Biochemistry and Molecular Biology, USA
| | - Nabil A Rashdan
- Louisiana State University Health Science Center-Shreveport, LA, Department of Molecular and Cellular Physiology, USA
| | - Diana Cruz-Topete
- Louisiana State University Health Science Center-Shreveport, LA, Department of Molecular and Cellular Physiology, USA
| | - Christopher B Pattillo
- Louisiana State University Health Science Center-Shreveport, LA, Department of Molecular and Cellular Physiology, USA
| | - Steven D Hartson
- Oklahoma State University, OK, Department of Biochemistry and Molecular Biology, USA
| | - Norman R Harris
- Louisiana State University Health Science Center-Shreveport, LA, Department of Molecular and Cellular Physiology, USA.
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Liu L, Shao Y, Zhang Y, Yang Y, Huang J, Li L, Sun R, Zhou Y, Su Y, Sun B. Neutrophil-derived heparin binding protein triggers vascular leakage and synergizes with myeloperoxidase at the early stage of severe burns (With video). BURNS & TRAUMA 2021; 9:tkab030. [PMID: 34646891 PMCID: PMC8499692 DOI: 10.1093/burnst/tkab030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/13/2021] [Indexed: 11/13/2022]
Abstract
Background Burn shock caused by vascular leakage is one of the main causes of high mortality in severe burn injury. However, the pathophysiological mechanism of vascular leakage is still unclear. The purpose of this study was to explore the molecular mechanism of vascular leakage in the early stage of severe burn and provide a new target for the treatment of severe burns. Methods Neutrophils were isolated from human peripheral blood by magnetic beads sorting. ELISA was used to detect neutrophil-derived granule proteins and glycocalyx injury products in plasma. The vascular leakage and neutrophil movement were assessed by in vivo laser confocal imaging in mice, and high-quality video were provided.. Adhesion-related molecules were investigated by qRT-PCR. The damage to glycocalyx of mice vascular endothelial cells was observed by transmission electron microscope and scanning electron microscope. Proteomic analysis, flow cytometry and immunofluorescence were used to further study the relationship between human peripheral blood neutrophil-derived hypochlorite (HOCl) and CD44 of human vascular endothelial cells. Results In this study, we found that rapidly increasing activated neutrophils secrete heparin binding protein (HBP) and myeloperoxidase (MPO) after severe burn injury. Increased HBP triggers vascular leakage with synergy of MPO, results in systemic edema and burn shock. Furthermore, we found that the MPO catalytic product HOCl but not MPO triggers CD44 extracellular domain shedding from vascular endothelial cells to damage the glycocalyx. Damage to the glycocalyx results in firm adhesion of neutrophils and increases vascular leakage. However, MPO inhibitors partially protect the glycocalyx of vascular endothelial cells. The combination of HBP and MPO inhibitors markedly reduces vascular leakage and systemic edema in the early stage of severe burns. Conclusions Taken together, these data reveal that neutrophil-derived HBP and MPO play an important synergies role in triggering vascular leakage at the early stage of severe burns. Targeted intervention in these two biomolecules may introduce new strategies for helping to reduce large amount of fluid loss and subsequent burn shock.
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Affiliation(s)
- Lu Liu
- School of Medicine, Jiangsu University, Zhenjiang 212001, Jiangsu Province, China
| | - Yiming Shao
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215002, Jiangsu Province, China
| | - Yixuan Zhang
- School of Medicine, Jiangsu University, Zhenjiang 212001, Jiangsu Province, China
| | - Yunxi Yang
- School of Medicine, Jiangsu University, Zhenjiang 212001, Jiangsu Province, China
| | - Jiamin Huang
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215002, Jiangsu Province, China
| | - Linbin Li
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215002, Jiangsu Province, China
| | - Ran Sun
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215002, Jiangsu Province, China
| | - Yuying Zhou
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215002, Jiangsu Province, China
| | - Yicheng Su
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215002, Jiangsu Province, China
| | - Bingwei Sun
- Department of Burns and Plastic Surgery, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215002, Jiangsu Province, China
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Bekmurzayeva A, Ashikbayeva Z, Myrkhiyeva Z, Nugmanova A, Shaimerdenova M, Ayupova T, Tosi D. Label-free fiber-optic spherical tip biosensor to enable picomolar-level detection of CD44 protein. Sci Rep 2021; 11:19583. [PMID: 34599251 PMCID: PMC8486867 DOI: 10.1038/s41598-021-99099-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 09/20/2021] [Indexed: 12/11/2022] Open
Abstract
Increased level of CD44 protein in serum is observed in several cancers and is associated with tumor burden and metastasis. Current clinically used detection methods of this protein are time-consuming and use labeled reagents for analysis. Therefore exploring new label-free and fast methods for its quantification including its detection in situ is of importance. This study reports the first optical fiber biosensor for CD44 protein detection, based on a spherical fiber optic tip device. The sensor is easily fabricated from an inexpensive material (single-mode fiber widely used in telecommunication) in a fast and robust manner through a CO2 laser splicer. The fabricated sensor responded to refractive index change with a sensitivity of 95.76 dB/RIU. The spherical tip was further functionalized with anti-CD44 antibodies to develop a biosensor and each step of functionalization was verified by an atomic force microscope. The biosensor detected a target of interest with an achieved limit of detection of 17 pM with only minor signal change to two control proteins. Most importantly, concentrations tested in this work are very broad and are within the clinically relevant concentration range. Moreover, the configuration of the proposed biosensor allows its potential incorporation into an in situ system for quantitative detection of this biomarker in a clinical setting.
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Affiliation(s)
- Aliya Bekmurzayeva
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan.
- National Laboratory Astana, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan.
| | - Zhannat Ashikbayeva
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan.
| | - Zhuldyz Myrkhiyeva
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
| | - Aigerim Nugmanova
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
| | - Madina Shaimerdenova
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
| | - Takhmina Ayupova
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
| | - Daniele Tosi
- School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
- National Laboratory Astana, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
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Tzaridis T, Reiners KS, Weller J, Bachurski D, Schäfer N, Schaub C, Hallek M, Scheffler B, Glas M, Herrlinger U, Wild S, Coch C, Hartmann G. Analysis of Serum miRNA in Glioblastoma Patients: CD44-Based Enrichment of Extracellular Vesicles Enhances Specificity for the Prognostic Signature. Int J Mol Sci 2020; 21:ijms21197211. [PMID: 33003586 PMCID: PMC7583802 DOI: 10.3390/ijms21197211] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/25/2020] [Accepted: 09/28/2020] [Indexed: 12/21/2022] Open
Abstract
Glioblastoma is a devastating disease, for which biomarkers allowing a prediction of prognosis are urgently needed. microRNAs have been described as potentially valuable biomarkers in cancer. Here, we studied a panel of microRNAs in extracellular vesicles (EVs) from the serum of glioblastoma patients and evaluated their correlation with the prognosis of these patients. The levels of 15 microRNAs in EVs that were separated by size-exclusion chromatography were studied by quantitative real-time PCR, followed by CD44 immunoprecipitation (SEC + CD44), and compared with those from the total serum of glioblastoma patients (n = 55) and healthy volunteers (n = 10). Compared to total serum, we found evidence for the enrichment of miR-21-3p and miR-106a-5p and, conversely, lower levels of miR-15b-3p, in SEC + CD44 EVs. miR-15b-3p and miR-21-3p were upregulated in glioblastoma patients compared to healthy subjects. A significant correlation with survival of the patients was found for levels of miR-15b-3p in total serum and miR-15b-3p, miR-21-3p, miR-106a-5p, and miR-328-3p in SEC + CD44 EVs. Combining miR-15b-3p in serum or miR-106a-5p in SEC + CD44 EVs with any one of the other three microRNAs in SEC + CD44 EVs allowed for a prognostic stratification of glioblastoma patients. We have thus identified four microRNAs in glioblastoma patients whose levels, in combination, can predict the prognosis for these patients.
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Affiliation(s)
- Theophilos Tzaridis
- Institute of Clinical Chemistry and Clinical Pharmacology, University of Bonn, 53127 Bonn, Germany; (T.T.); (C.C.); (G.H.)
- Division of Clinical Neurooncology, Department of Neurology, Center of Integrated Oncology Aachen-Bonn-Cologne-Düsseldorf, Partner Site Bonn, University Hospital Bonn, 53127 Bonn, Germany; (J.W.); (N.S.); (C.S.); (U.H.)
- Tumor Initiation & Maintenance Program, NCI-Designated Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Katrin S Reiners
- Institute of Clinical Chemistry and Clinical Pharmacology, University of Bonn, 53127 Bonn, Germany; (T.T.); (C.C.); (G.H.)
- Correspondence:
| | - Johannes Weller
- Division of Clinical Neurooncology, Department of Neurology, Center of Integrated Oncology Aachen-Bonn-Cologne-Düsseldorf, Partner Site Bonn, University Hospital Bonn, 53127 Bonn, Germany; (J.W.); (N.S.); (C.S.); (U.H.)
| | - Daniel Bachurski
- Department I of Internal Medicine, Center for Integrated Oncology Aachen-Bonn-Cologne-Düsseldorf, Partner Site Cologne, CECAD Center of Excellence on ‘‘Cellular Stress Responses in Aging-Associated Diseases’’, Center for Molecular Medicine Cologne, University of Cologne, 50937 Cologne, Germany; (D.B.); (M.H.)
| | - Niklas Schäfer
- Division of Clinical Neurooncology, Department of Neurology, Center of Integrated Oncology Aachen-Bonn-Cologne-Düsseldorf, Partner Site Bonn, University Hospital Bonn, 53127 Bonn, Germany; (J.W.); (N.S.); (C.S.); (U.H.)
| | - Christina Schaub
- Division of Clinical Neurooncology, Department of Neurology, Center of Integrated Oncology Aachen-Bonn-Cologne-Düsseldorf, Partner Site Bonn, University Hospital Bonn, 53127 Bonn, Germany; (J.W.); (N.S.); (C.S.); (U.H.)
| | - Michael Hallek
- Department I of Internal Medicine, Center for Integrated Oncology Aachen-Bonn-Cologne-Düsseldorf, Partner Site Cologne, CECAD Center of Excellence on ‘‘Cellular Stress Responses in Aging-Associated Diseases’’, Center for Molecular Medicine Cologne, University of Cologne, 50937 Cologne, Germany; (D.B.); (M.H.)
| | - Björn Scheffler
- DKFZ-Division Translational Neurooncology at the West German Cancer Center (WTZ), German Cancer Consortium (DKTK), DKFZ Heidelberg & Partner Site Univ Hospital Essen, 45147 Essen, Germany;
| | - Martin Glas
- Division of Clinical Neurooncology, Department of Neurology and West German Cancer Center (WTZ), German Cancer Consortium, University Hospital Essen, 45147 Essen, Germany;
| | - Ulrich Herrlinger
- Division of Clinical Neurooncology, Department of Neurology, Center of Integrated Oncology Aachen-Bonn-Cologne-Düsseldorf, Partner Site Bonn, University Hospital Bonn, 53127 Bonn, Germany; (J.W.); (N.S.); (C.S.); (U.H.)
| | - Stefan Wild
- Miltenyi Biotec & Biomedicine GmbH, 51429 Bergisch Gladbach, Germany;
| | - Christoph Coch
- Institute of Clinical Chemistry and Clinical Pharmacology, University of Bonn, 53127 Bonn, Germany; (T.T.); (C.C.); (G.H.)
- Miltenyi Biotec & Biomedicine GmbH, 51429 Bergisch Gladbach, Germany;
| | - Gunther Hartmann
- Institute of Clinical Chemistry and Clinical Pharmacology, University of Bonn, 53127 Bonn, Germany; (T.T.); (C.C.); (G.H.)
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9
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Abstract
In the last few decades, hyaluronic acid (HA) has become increasingly employed as a biomaterial in both clinical and research applications. The abundance of HA in many tissues, together with its amenability to chemical modification, has made HA an attractive material platform for a wide range of applications including regenerative medicine, drug delivery, and scaffolds for cell culture. HA has traditionally been appreciated to modulate tissue mechanics and remodeling through its distinctive biophysical properties and ability to organize other matrix proteins. However, HA can influence cell behavior in much more direct and specific ways by engaging cellular HA receptors, which can trigger signals that influence cell survival, proliferation, adhesion, and migration. In turn, cells modify HA by regulating synthesis and degradation through a dedicated arsenal of enzymes. Optimal design of HA-based biomaterials demands full consideration of these diverse modes of regulation. This review summarizes how HA-based signaling regulates cell behavior and discusses how these signals can be leveraged to create cell-instructive biomaterials.
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Affiliation(s)
- Kayla J. Wolf
- University of California, Berkeley – University of California, San Francisco Graduate Program in Bioengineering, Berkeley, California, 94720, USA
- Department of Bioengineering, University of California, Berkeley, Berkeley, California, 94720, USA
| | - Sanjay Kumar
- University of California, Berkeley – University of California, San Francisco Graduate Program in Bioengineering, Berkeley, California, 94720, USA
- Department of Bioengineering, University of California, Berkeley, Berkeley, California, 94720, USA
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California, 94720, USA
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10
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Pfalzgraff A, Bárcena-Varela S, Heinbockel L, Gutsmann T, Brandenburg K, Martinez-de-Tejada G, Weindl G. Antimicrobial endotoxin-neutralizing peptides promote keratinocyte migration via P2X7 receptor activation and accelerate wound healing in vivo. Br J Pharmacol 2018; 175:3581-3593. [PMID: 29947028 DOI: 10.1111/bph.14425] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 06/01/2018] [Accepted: 06/06/2018] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND AND PURPOSE Wound healing is a complex process that is essential to provide skin homeostasis. Infection with pathogenic bacteria such as Staphylococcus aureus can lead to chronic wounds, which are challenging to heal. Previously, we demonstrated that the antimicrobial endotoxin-neutralizing peptide Pep19-2.5 promotes artificial wound closure in keratinocytes. Here, we investigated the mechanism of peptide-induced cell migration and if Pep19-2.5 accelerates wound closure in vivo. EXPERIMENTAL APPROACH Cell migration was examined in HaCaT keratinocytes and P2X7 receptor-overexpressing HEK293 cells using the wound healing scratch assay. The protein expression of phosphorylated ERK1/2, ATP release, calcium influx and mitochondrial ROS were analysed to characterize Pep19-2.5-mediated signalling. For in vivo studies, female BALB/c mice were wounded and infected with methicillin-resistant S. aureus (MRSA) or left non-infected and treated topically with Pep19-2.5 twice daily for 6 days. KEY RESULTS Specific P2X7 receptor antagonists inhibited Pep19-2.5-induced cell migration and ERK1/2 phosphorylation in keratinocytes and P2X7 receptor-transfected HEK293 cells. ATP release was not increased by Pep19-2.5; however, ATP was required for cell migration. Pep19-2.5 increased cytosolic calcium and mitochondrial ROS, which were involved in peptide-induced migration and ERK1/2 phosphorylation. In both non-infected and MRSA-infected wounds, the wound diameter was reduced already at day 2 post-wounding in the Pep19-2.5-treated groups compared to vehicle, and remained decreased until day 6. CONCLUSIONS AND IMPLICATIONS Our data suggest the potential application of Pep19-2.5 in the treatment of non-infected and S. aureus-infected wounds and provide insights into the mechanism involved in Pep19-2.5-induced wound healing.
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Affiliation(s)
- Anja Pfalzgraff
- Institute of Pharmacy (Pharmacology and Toxicology), Freie Universität Berlin, Berlin, Germany
| | - Sergio Bárcena-Varela
- Department of Microbiology and Parasitology, Universidad de Navarra, Pamplona, Spain
| | - Lena Heinbockel
- Division of Biophysics, Research Center Borstel, Leibniz-Center for Medicine and Biosciences, Borstel, Germany
| | - Thomas Gutsmann
- Division of Biophysics, Research Center Borstel, Leibniz-Center for Medicine and Biosciences, Borstel, Germany
| | - Klaus Brandenburg
- Division of Biophysics, Research Center Borstel, Leibniz-Center for Medicine and Biosciences, Borstel, Germany
| | | | - Günther Weindl
- Institute of Pharmacy (Pharmacology and Toxicology), Freie Universität Berlin, Berlin, Germany
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11
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Fan Z, Xia H, Xu H, Ma J, Zhou S, Hou W, Tang Q, Gong Q, Nie Y, Bi F. Standard CD44 modulates YAP1 through a positive feedback loop in hepatocellular carcinoma. Biomed Pharmacother 2018; 103:147-156. [PMID: 29649630 DOI: 10.1016/j.biopha.2018.03.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 03/09/2018] [Accepted: 03/09/2018] [Indexed: 02/07/2023] Open
Abstract
High expression levels of CD44 and YAP have been identified as poor prognostic factors in hepatocellular carcinoma (HCC). However, the mechanistic relationship between CD44 and YAP during HCC tumorigenesis remains largely unknown. To investigate the mutual regulation between standard CD44 (CD44S) and YAP1 in HCC cell lines and tissue samples, CD44S and YAP1 expression in 40 pairs of tumor samples and matched distal normal tissues from HCC patients was examined by immunohistochemical staining. High expression of either CD44S or YAP1 was associated with a younger age and worse pathology grade. In addition, high levels of CD44S and YAP1 were associated with increased vascular invasion and more severe liver cirrhosis, respectively. CD44S expression was positively correlated with YAP1 expression in these HCC tissues. In vitro experiments suggested that CD44S could positively regulate the expression of YAP1 and its target genes via the PI3K/Akt pathway in HCC cells. Moreover, CD44S is regulated by the YAP1/TEAD axis. These results reveal a novel positive feedback loop involving CD44S and YAP1, in which CD44S functions as both an upstream regulator and a downstream effector of YAP1 in HCC. This feedback loop might constitute a broadly conserved module for regulating cell proliferation and invasion during HCC tumorigenesis. Blocking this positive feedback loop that involves CD44S and YAP1 might represent a new approach for HCC treatment.
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Affiliation(s)
- Zhenhai Fan
- Department of Medical Oncology and Laboratory of Molecular Targeted Therapy in Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China; Key Laboratory of Cell Engineering of Guizhou, The Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou, 573003, PR China
| | - Hongwei Xia
- Department of Medical Oncology and Laboratory of Molecular Targeted Therapy in Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Huanji Xu
- Department of Medical Oncology and Laboratory of Molecular Targeted Therapy in Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Ji Ma
- Department of Medical Oncology and Laboratory of Molecular Targeted Therapy in Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China; Department of Breast Surgery, Lanzhou General Hospital of PLA, Lanzhou, Gansu, 730000, PR China
| | - Sheng Zhou
- Department of Medical Oncology and Laboratory of Molecular Targeted Therapy in Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Wanting Hou
- Department of Medical Oncology and Laboratory of Molecular Targeted Therapy in Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Qiulin Tang
- Department of Medical Oncology and Laboratory of Molecular Targeted Therapy in Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Qiyong Gong
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Yongzhan Nie
- State Key Laboratory of Cancer Biology & Xijing Hospital of Digest Diseases, Fourth Military Medical University, Xi'an, Shanxi, 710032, PR China
| | - Feng Bi
- Department of Medical Oncology and Laboratory of Molecular Targeted Therapy in Oncology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China.
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12
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Pazhohan A, Amidi F, Akbari-Asbagh F, Seyedrezazadeh E, Aftabi Y, Abdolalizadeh J, Khodarahmian M, Khanlarkhani N, Sobhani A. Expression and shedding of CD44 in the endometrium of women with endometriosis and modulating effects of vitamin D: A randomized exploratory trial. J Steroid Biochem Mol Biol 2018; 178:150-158. [PMID: 29229305 DOI: 10.1016/j.jsbmb.2017.12.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 11/29/2017] [Accepted: 12/08/2017] [Indexed: 01/30/2023]
Abstract
Endometriosis is an estrogen-dependent disease. The impaired estrogen and progesterone signaling over-activates the Wnt/β-catenin pathway in endometriosis patients, which can explain the increased invasion potency of endometrial cells derived from the endometrium of women with endometriosis. The regulatory effects of vitamin D on Wnt/β-catenin pathway were demonstrated by previous studies. According to gene prioritization method, among Wnt target genes, CD44 was in high ranking in relation to endometriosis. The aim of this study is to investigate the expression of CD44 in the endometrium of women with endometriosis and to study the effects of vitamin D on its expression. This prospective study was performed, during a 12 months period from December 2015 to November 2016, on healthy women as the control group (n = 14) and endometriosis patients (n = 34). The endometriosis patients randomly divided into two groups: One group treated according to the routine protocol and the other group, alongside the routine protocol, took 50,000 IU vitamin D weekly for 12-14 weeks. Blood, endometrial fluid, and endometrial tissue samples were obtained from the control group and endometriosis groups before and after the intervention. We used in silico gene prioritization to study the relevance of CD44. The expression of CD44 was evaluated using the techniques of Western blot, real-time polymerase chain reaction, and ELISA. The eutopic endometrium of women with endometriosis in mid-secretory phase expressed significantly higher levels of CD44s, CD44V, and CD44v6. The concentration of soluble CD44 in the serum and endometrial fluid of endometriosis patients was higher than of healthy women. The expression level of CD44s, CD44V, and CD44v6 in the eutopic endometrium as well as the concentration of soluble CD44 in the endometrial fluid was decreased after modification of the circulating levels of 25(OH)D. It seems that the increased expression and extensive shedding of CD44 in eutopic endometrium play a role in the pathogenesis of endometriosis. Vitamin D can control and modify this process at least in part. We suggest more in vivo investigations on the therapeutic potency of vitamin D in endometriosis.
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Affiliation(s)
- Azar Pazhohan
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Fardin Amidi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Firoozeh Akbari-Asbagh
- Department of Obstetrics and Gynecology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ensiyeh Seyedrezazadeh
- Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Younes Aftabi
- Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jalal Abdolalizadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahshad Khodarahmian
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Neda Khanlarkhani
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Aligholi Sobhani
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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13
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Circulating tumor stem like cells in oral squamous cell carcinoma: An unresolved paradox. Oral Oncol 2016; 62:139-146. [PMID: 27865367 DOI: 10.1016/j.oraloncology.2016.10.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 09/26/2016] [Accepted: 10/22/2016] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Circulating tumor cells (CTCs) are increasingly gaining importance due to their immense potential in enhancing diagnosis, prognosis and response to therapy in solid malignancies. Therefore, we aimed to comprehend the molecular diversity and critical role of this disseminated tumor population in OSCC. METHODOLOGY CD44+ subpopulation was isolated using immuno-magnetic cell separation and their purity was validated using flow cytometry. Characterisation of self renewal potential and resistance to chemotherapy was assessed using tumor sphere forming and cytotoxicity assay. Gene expression profile of pertinent CSC (CD44s, CD44v3, CD44v6) and stemness markers (Bmi1 and Nanog) was carried out in CD44+ cells using Real Time PCR. Predominantly expressed markers and their association with clinico-pathological conditions were substantiated in 30 OSCC patients. RESULT Flow cytometry analysis depicted a predominant population of CD44+CD24-CD45- cells suggesting that circulating tumor cells had a subpopulation of CSC like cells in the circulation. These cells demonstrated increased sphere forming capability and intrinsic chemo-resistance compared to non-CSC, thus indicating the CSC features of self-renewal and chemo-resistance. Additionally, CD44+ cells showed significantly increased expression levels of CD44v6 and Nanog compared to CD44- cells. Clinically, expression pattern of CD44v6 and Nanog correlated with different anatomical subsites, loco-regional aggressiveness of the disease and recurrence, thus opening newer avenues that can be explored for better prognostic and therapeutic implications. CONCLUSION This study explored the inevitable role of CD44v6 and Nanog as circulating stem like cell markers in assessment of loco-regional aggressiveness, detection of relapse and therapeutic response and resistance.
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14
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Fendiline inhibits proliferation and invasion of pancreatic cancer cells by interfering with ADAM10 activation and β-catenin signaling. Oncotarget 2016; 6:35931-48. [PMID: 26440150 PMCID: PMC4742152 DOI: 10.18632/oncotarget.5933] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 09/14/2015] [Indexed: 12/20/2022] Open
Abstract
ADAM10 (A Disintegrin and Metalloprotease Domain 10) affects the pathophysiology of various cancers, and we had shown that inhibition of ADAM10 sensitizes pancreatic cancer cells to gemcitabine. ADAM10 is activated in response to calcium influx, and here we examined if calcium channel blockers (CCB) would impede ADAM10 activation and affect biology of pancreatic cancer cells. We find that the CCB, fendiline, significantly reduces proliferation, migration, invasion, and anchorage independent growth of pancreatic cancer cells. This was associated with ADAM10 inhibition and its localization at the actin-rich membrane protrusions. Further, fendiline-treated cells formed cadherin-catenin positive tight adherens junctions and elicited defective protein trafficking and recycling. Furthermore, the expression of β-catenin target genes, cyclinD1, c-Myc and CD44, were significantly decreased, suggesting that fendiline might prevent cell proliferation and migration by inhibiting ADAM10 function, cadherin proteolysis and stabilization of cadherin-catenin interaction at the plasma membrane. This will subsequently diminish β-catenin intracellular signaling and repress TCF/LEF target gene expression. Supporting this notion, RNAi-directed downregulation of ADAM10 in cancer cells decreased the expression of cyclinD1, c-Myc and CD44. Furthermore, analysis of human pancreatic tumor tissue microarrays and lysates showed elevated levels of ADAM10, suggesting that aberrant activation of ADAM10 plays a fundamental role in growth and metastasis of PDACs and inhibiting this pathway might be a viable strategy to combat PDACs.
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15
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Dysregulated expression of cell surface glycoprotein CDCP1 in prostate cancer. Oncotarget 2016; 6:43743-58. [PMID: 26497208 PMCID: PMC4791263 DOI: 10.18632/oncotarget.6193] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 10/06/2015] [Indexed: 12/05/2022] Open
Abstract
CUB-domain-containing protein 1 (CDCP1) is a trans-membrane protein regulator of cell adhesion with a potent pro-migratory function in tumors. Given that proteolytic cleavage of the ectodomain correlates with outside-in oncogenic signaling, we characterized glycosylation in the context of cellular processing and expression of CDCP1 in prostate cancer. We detected 135 kDa full-length and proteolytic processed 70 kDa species in a panel of PCa cell models. The relative expression of full-length CDCP1 correlated with the metastatic potential of syngeneic cell models and an increase in surface membrane expression of CDCP1 was observed in tumor compared to adjacent normal prostate tissues. We demonstrated that glycosylation of CDCP1 is a prerequisite for protein stability and plasma membrane localization, and that the expression level and extent of N-glycosylation of CDCP1 correlated with metastatic status. Interestingly, complex N-linked glycans with sialic acid chains were restricted to the N-terminal half of the ectodomain and absent in the truncated species. Characterization of the extracellular expression of CDCP1 identified novel circulating forms and revealed that extracellular vesicles provide additional processing pathways. Employing immunoaffinity mass spectrometry, we detected elevated levels of circulating CDCP1 in patient urine with high-risk disease. Our results establish that differential glycosylation, cell surface presentation and extracellular expression of CDCP1 are hallmarks of PCa progression.
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16
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Wu G, Zheng K, Xia S, Wang Y, Meng X, Qin X, Cheng Y. MicroRNA-655-3p functions as a tumor suppressor by regulating ADAM10 and β-catenin pathway in Hepatocellular Carcinoma. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:89. [PMID: 27259866 PMCID: PMC4893252 DOI: 10.1186/s13046-016-0368-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/01/2016] [Indexed: 12/22/2022]
Abstract
BACKGROUND Increasing evidence suggests that microRNAs (miRNAs) play critical roles in malignant transformation, tumor progression and metastasis. Aberrant miR-655-3p expression has been associated with several cancers. However, the role and underlying mechanism of miR-655-3p in the development of hepatocellular carcinoma (HCC) remains unclear. METHODS MiR-655-3p expression was detected by quantitative RT-PCR (qRT-PCR) in human HCC tissues and cell lines. Cell proliferation was investigated using MTT and colony formation assays, and cell migration and invasion abilities were evaluated by transwell assay. ADAM10 protein expression was detected by immunohistochemical assay. The target gene and downstream of miR-655-3p were determined by qRT-PCR, western blot and dual-luciferase reporter assays. RESULTS miR-655-3p was significantly down-regulated in HCC tissues and HCC cell lines. Low miR-655-3p expression was negatively related to tumor size, portal vein tumor thrombosis (PVTT) status, TNM stage and metastasis status. In addition, miR-655-3p overexpression and depletion decreased and increased HCC cell proliferation, migration and invasion, respectively. Moreover, ADAM10 was identified as a direct target of miR-655-3p, and miR-655-3p down-regulated E-cadherin protein level and inhibits β-catenin pathway by mediating ADAM10. CONCLUSIONS MiR-655-3p might functions as a tumor suppressor by directly targeting ADAM10 and indirectly regulating β-catenin pathway in the development of progression of HCC. It may be a novel therapeutic candidate target to in HCC treatment.
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Affiliation(s)
- Gang Wu
- Department of General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.
| | - Kunming Zheng
- Department of General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Shuguan Xia
- Department of Breast and Thyroid Surgery, Huaihe Hospital, Henan University, Kaifeng, 475000, China
| | - Yawei Wang
- Department of General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Xiangyu Meng
- Department of Gastric Surgery, Liaoning Cancer Hospital and Institute, Shenyang, 110001, China
| | - Xiaoming Qin
- Department of General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Ying Cheng
- Department of General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
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17
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Nanni SB, Pratt J, Beauchemin D, Haidara K, Annabi B. Impact of Concanavalin-A-Mediated Cytoskeleton Disruption on Low-Density Lipoprotein Receptor-Related Protein-1 Internalization and Cell Surface Expression in Glioblastomas. BIOMARKERS IN CANCER 2016; 8:77-87. [PMID: 27226736 PMCID: PMC4874747 DOI: 10.4137/bic.s38894] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 04/17/2016] [Accepted: 04/26/2016] [Indexed: 01/13/2023]
Abstract
The low-density lipoprotein receptor-related protein 1 (LRP-1) is a multiligand endocytic receptor, which plays a pivotal role in controlling cytoskeleton dynamics during cancer cell migration. Its rapid endocytosis further allows efficient clearance of extracellular ligands. Concanavalin-A (ConA) is a lectin used to trigger in vitro physiological cellular processes, including cytokines secretion, nitric oxide production, and T-lymphocytes activation. Given that ConA exerts part of its effects through cytoskeleton remodeling, we questioned whether it affected LRP-1 expression, intracellular trafficking, and cell surface function in grade IV U87 glioblastoma cells. Using flow cytometry and confocal microscopy, we found that loss of the cell surface 600-kDa mature form of LRP-1 occurs upon ConA treatment. Consequently, internalization of the physiological α2-macroglobulin and the synthetic angiopep-2 ligands of LRP-1 was also decreased. Silencing of known mediators of ConA, such as the membrane type-1 matrix metalloproteinase, and the Toll-like receptors (TLR)-2 and TLR-6 was unable to rescue ConA-mediated LRP-1 expression decrease, implying that the loss of LRP-1 was independent of cell surface relayed signaling. The ConA-mediated reduction in LRP-1 expression was emulated by the actin cytoskeleton-disrupting agent cytochalasin-D, but not by the microtubule inhibitor nocodazole, and required both lysosomal- and ubiquitin-proteasome system-mediated degradation. Our study implies that actin cytoskeleton integrity is required for proper LRP-1 cell surface functions and that impaired trafficking leads to specialized compartmentation and degradation. Our data also strengthen the biomarker role of cell surface LRP-1 functions in the vectorized transport of therapeutic angiopep bioconjugates into brain cancer cells.
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Affiliation(s)
- Samuel Burke Nanni
- Laboratoire d'Oncologie Moléculaire, Centre de recherche BIOMED, Département de Chimie, Université du Québec à Montréal, QC, Canada
| | - Jonathan Pratt
- Laboratoire d'Oncologie Moléculaire, Centre de recherche BIOMED, Département de Chimie, Université du Québec à Montréal, QC, Canada
| | - David Beauchemin
- Laboratoire d'Oncologie Moléculaire, Centre de recherche BIOMED, Département de Chimie, Université du Québec à Montréal, QC, Canada
| | - Khadidja Haidara
- Laboratoire d'Oncologie Moléculaire, Centre de recherche BIOMED, Département de Chimie, Université du Québec à Montréal, QC, Canada
| | - Borhane Annabi
- Laboratoire d'Oncologie Moléculaire, Centre de recherche BIOMED, Département de Chimie, Université du Québec à Montréal, QC, Canada
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18
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Applicable advances in the molecular pathology of glioblastoma. Brain Tumor Pathol 2015; 32:153-62. [PMID: 26078107 DOI: 10.1007/s10014-015-0224-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 06/01/2015] [Indexed: 12/21/2022]
Abstract
Comprising more than 80% of malignant brain tumors, glioma has proven to be a daunting cause of mortality in a vast majority of the human population. Progressive and extensive research on malignant glioma has substantially enhanced our understanding of glioma cell biology and molecular pathology. Subtypes of glioma such as astrocytoma and oligodendroglioma are currently grouped together into one pathological class, where they show many differences in histology and molecular etiology. This indicates that it may be beneficial to consider a new and radical subclassification. Thus, we summarize recent developments in glioblastoma multiforme (GBM) subtypes, immunohistochemical analyses useful for diagnoses and the biological evaluation and therapeutic implications of gliomas in this review.
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Hartmann M, Parra LM, Ruschel A, Böhme S, Li Y, Morrison H, Herrlich A, Herrlich P. Tumor Suppressor NF2 Blocks Cellular Migration by Inhibiting Ectodomain Cleavage of CD44. Mol Cancer Res 2015; 13:879-90. [PMID: 25652588 DOI: 10.1158/1541-7786.mcr-15-0020-t] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 01/16/2015] [Indexed: 11/16/2022]
Abstract
UNLABELLED Ectodomain cleavage (shedding) of transmembrane proteins by metalloproteases (MMP) generates numerous essential signaling molecules, but its regulation is not totally understood. CD44, a cleaved transmembrane glycoprotein, exerts both antiproliferative or tumor-promoting functions, but whether proteolysis is required for this is not certain. CD44-mediated contact inhibition and cellular proliferation are regulated by counteracting CD44 C-terminal interacting proteins, the tumor suppressor protein merlin (NF2) and ERM proteins (ezrin, radixin, moesin). We show here that activation or overexpression of constitutively active merlin or downregulation of ERMs inhibited 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced [as well as serum, hepatocyte growth factor (HGF), or platelet-derived growth factor (PDGF)] CD44 cleavage by the metalloprotease ADAM10, whereas overexpressed ERM proteins promoted cleavage. Merlin- and ERM-modulated Ras or Rac activity was not required for this function. However, latrunculin (an actin-disrupting toxin) or an ezrin mutant which is unable to link CD44 to actin, inhibited CD44 cleavage, identifying a cytoskeletal C-terminal link as essential for induced CD44 cleavage. Cellular migration, an important tumor property, depended on CD44 and its cleavage and was inhibited by merlin. These data reveal a novel function of merlin and suggest that CD44 cleavage products play a tumor-promoting role. Neuregulin, an EGF ligand released by ADAM17 from its pro-form NRG1, is predominantly involved in regulating cellular differentiation. In contrast to CD44, release of neuregulin from its pro-form was not regulated by merlin or ERM proteins. Disruption of the actin cytoskeleton however, also inhibited NRG1 cleavage. This current study presents one of the first examples of substrate-selective cleavage regulation. IMPLICATIONS Investigating transmembrane protein cleavage and their regulatory pathways have provided new molecular insight into their important role in cancer formation and possible treatment.
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Affiliation(s)
- Monika Hartmann
- Leibniz Institute for Age Research, Fritz Lipmann Institute, Jena, Germany
| | - Liseth M Parra
- Leibniz Institute for Age Research, Fritz Lipmann Institute, Jena, Germany. Harvard Institutes of Medicine, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Anne Ruschel
- Leibniz Institute for Age Research, Fritz Lipmann Institute, Jena, Germany
| | - Sandra Böhme
- Leibniz Institute for Age Research, Fritz Lipmann Institute, Jena, Germany
| | - Yong Li
- Leibniz Institute for Age Research, Fritz Lipmann Institute, Jena, Germany
| | - Helen Morrison
- Leibniz Institute for Age Research, Fritz Lipmann Institute, Jena, Germany
| | - Andreas Herrlich
- Harvard Institutes of Medicine, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
| | - Peter Herrlich
- Leibniz Institute for Age Research, Fritz Lipmann Institute, Jena, Germany.
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Ulasov I, Yi R, Guo D, Sarvaiya P, Cobbs C. The emerging role of MMP14 in brain tumorigenesis and future therapeutics. Biochim Biophys Acta Rev Cancer 2014; 1846:113-20. [DOI: 10.1016/j.bbcan.2014.03.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 02/12/2014] [Accepted: 03/15/2014] [Indexed: 02/08/2023]
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21
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Ma Y, Yang Y, Wang F, Wei Q, Qin H. Hippo-YAP signaling pathway: A new paradigm for cancer therapy. Int J Cancer 2014; 137:2275-86. [PMID: 25042563 DOI: 10.1002/ijc.29073] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Accepted: 07/02/2014] [Indexed: 01/11/2023]
Abstract
In the past decades, the Hippo signaling pathway has been delineated and shown to play multiple roles in the control of organ size in both Drosophila and mammals. In mammals, the Hippo pathway is a kinase cascade leading from Mst1/2 to YAP and its paralog TAZ. Several studies have demonstrated that YAP/TAZ is a candidate oncogene and that other members of the Hippo pathway are tumor suppressive genes. The dysregulation of the Hippo pathway has been observed in a variety of cancers. This review chronicles the recent progress in elucidating the function of Hippo signaling in tumorigenesis and provide a rich source of potential targets for cancer therapy.
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Affiliation(s)
- Yanlei Ma
- Department of GI Surgery, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai, People's Republic of China
| | - Yongzhi Yang
- Department of GI Surgery, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai, People's Republic of China
| | - Feng Wang
- Department of GI Surgery, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai, People's Republic of China
| | - Qing Wei
- Department of Pathology, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai, People's Republic of China
| | - Huanlong Qin
- Department of GI Surgery, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai, People's Republic of China
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Otsubo C, Otomo R, Miyazaki M, Matsushima-Hibiya Y, Kohno T, Iwakawa R, Takeshita F, Okayama H, Ichikawa H, Saya H, Kiyono T, Ochiya T, Tashiro F, Nakagama H, Yokota J, Enari M. TSPAN2 is involved in cell invasion and motility during lung cancer progression. Cell Rep 2014; 7:527-538. [PMID: 24726368 DOI: 10.1016/j.celrep.2014.03.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 02/10/2014] [Accepted: 03/10/2014] [Indexed: 11/15/2022] Open
Abstract
In lung cancer progression, p53 mutations are more often observed in invasive tumors than in noninvasive tumors, suggesting that p53 is involved in tumor invasion and metastasis. To understand the nature of p53 function as a tumor suppressor, it is crucial to elucidate the detailed mechanism of the alteration in epithelial cells that follow oncogenic KRAS activation and p53 inactivation. Here, we report that KRAS activation induces epithelial-mesenchymal transition and that p53 inactivation is required for cell motility and invasiveness. Furthermore, TSPAN2, a transmembrane protein, is responsible for cell motility and invasiveness elicited by p53 inactivation. TSPAN2 is highly expressed in p53-mutated lung cancer cells, and high expression of TSPAN2 is associated with the poor prognosis of lung adenocarinomas. TSPAN2 knockdown suppresses metastasis to the lungs and liver, enabling prolonged survival. TSPAN2 enhances cell motility and invasiveness by assisting CD44 in scavenging intracellular reactive oxygen species.
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Affiliation(s)
- Chihiro Otsubo
- Division of Refractory Cancer Research, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan; Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo 125-8585, Japan
| | - Ryo Otomo
- Division of Refractory Cancer Research, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan; Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo 125-8585, Japan
| | - Makoto Miyazaki
- Division of Refractory Cancer Research, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan; Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo 125-8585, Japan
| | - Yuko Matsushima-Hibiya
- Division of Refractory Cancer Research, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan
| | - Takashi Kohno
- Division of Genome Biology, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan
| | - Reika Iwakawa
- Division of Genome Biology, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan
| | - Fumitaka Takeshita
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan
| | - Hirokazu Okayama
- Division of Genome Biology, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan
| | - Hitoshi Ichikawa
- Division of Genetics, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan
| | - Hideyuki Saya
- Division of Gene Regulation, Institute for Advanced Medical Research, School of Medicine, Keio University, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Tohru Kiyono
- Division of Virology, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan
| | - Takahiro Ochiya
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan
| | - Fumio Tashiro
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo 125-8585, Japan
| | - Hitoshi Nakagama
- Division of Cancer Development System, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan
| | - Jun Yokota
- Division of Genome Biology, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan
| | - Masato Enari
- Division of Refractory Cancer Research, National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan.
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Kawahara R, Lima RN, Domingues RR, Pauletti BA, Meirelles GV, Assis M, Figueira ACM, Leme AFP. Deciphering the Role of the ADAM17-Dependent Secretome in Cell Signaling. J Proteome Res 2014; 13:2080-93. [DOI: 10.1021/pr401224u] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Rebeca Kawahara
- Laboratório
Nacional de Biociências, LNBio, CNPEM, 13083-970 Campinas, Brazil
| | - Renato Niyama Lima
- Laboratório
Nacional de Biociências, LNBio, CNPEM, 13083-970 Campinas, Brazil
| | | | | | | | - Michelle Assis
- Laboratório
Nacional de Biociências, LNBio, CNPEM, 13083-970 Campinas, Brazil
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Chen J, Zhou J, Lu J, Xiong H, Shi X, Gong L. Significance of CD44 expression in head and neck cancer: a systemic review and meta-analysis. BMC Cancer 2014; 14:15. [PMID: 24410905 PMCID: PMC3893437 DOI: 10.1186/1471-2407-14-15] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Accepted: 01/06/2014] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND CD44 has been reported to be involved with tumor growth and metastasis and has also been implicated as a CSC marker in head and neck squamous cell cancer (HNSCC). However, the prognostic value of CD44 still remains controversial; hence, we investigated the correlation between CD44 and the clinicopathological features of HNSCC by meta-analysis. METHODS A comprehensive search was performed using PubMed, ISI web of Science and China National Knowledge Infrastructure (CNKI) up to April 2013. Only studies with immunohistochemical staining of HNSCC were considered. Data on TNM classification, tumor grade, disease free survival and 3- or 5-year overall survival rate were extracted. RESULTS Thirty studies with 2102 patients met the inclusion criteria for the meta-analysis. Fifteen studies used anti-pan-CD44 antibody, 9 used anti-CD44-v6 antibody, 2 used anti-CD44-v3 and 2 used anti-CD44s antibody, 1 used anti-CD44-v9, and 1 used anti-CD44-v6,-v3 and -v4-5 simultaneously. The total percentage of CD44 expression was 57.8%, with 49.3% in oral cancer patients, 66.4% in pharynx and 54.7% in larynx cancer patients expressing CD44. No significant correlation between clinical features and CD44 expression was revealed for oral cancer patients, but CD44 was shown to be associated with advanced T categories (larynx: RR = 1.33, 95% CI 1.01-1.76; larynx & pharynx RR = 1.21, 95% CI 1.08-1.35), worse N categories (larynx: RR = 2.53, 95% CI 1.99-3.21; larynx & pharynx RR = 1.95, 95% CI 1.35-2.82), higher tumor grades (larynx & pharynx RR = 1.71, 95% CI 1.04-2.79) and 5-year OS rates (larynx: RR = 0.62, 95% CI 0.47-0.83; larynx & pharynx RR = 0.66, 95% CI 0.47-0.94) in patients with laryngeal and pharyngolaryngeal cancer. In stratified analysis, pan-CD44 and CD44-v6 expression were both correlated with 5-year OS rate of patients with laryngeal (CD44: RR = 0.66, 95% CI 0.46-0.95; CD44-v6 RR = 0.53, 95% CI 0.37-0.77) and pharyngolaryngeal cancer (CD44: RR = 0.56, 95% CI 0.34-0.93; CD44-v6 RR = 0.53, 95% CI 0.37-0.77). CONCLUSIONS Our analysis suggested that CD44 is related to worse T category, N category, tumor grade and prognosis, in pharyngeal and laryngeal cancer, but no clear association was revealed between CD44 expression and oral cancer.
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Affiliation(s)
- Jianqiang Chen
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical, College, Cixi 315300, China
| | - Jianding Zhou
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical, College, Cixi 315300, China
| | - Jie Lu
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical, College, Cixi 315300, China
| | - Hua Xiong
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical, College, Cixi 315300, China
| | - Xueli Shi
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical, College, Cixi 315300, China
| | - Liang Gong
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical, College, Cixi 315300, China
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Giovingo M, Nolan M, McCarty R, Pang IH, Clark AF, Beverley RM, Schwartz S, Stamer WD, Walker L, Grybauskas A, Skuran K, Kuprys PV, Yue BY, Knepper PA. sCD44 overexpression increases intraocular pressure and aqueous outflow resistance. Mol Vis 2013; 19:2151-64. [PMID: 24194636 PMCID: PMC3816995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 10/29/2013] [Indexed: 11/07/2022] Open
Abstract
PURPOSE CD44 plays major roles in multiple physiologic processes. The ectodomain concentration of the CD44 receptor, soluble CD44 (sCD44), is significantly increased in the aqueous humor of primary open-angle glaucoma (POAG). The purpose of this study was to determine if adenoviral constructs of CD44 and isolated 32-kDa sCD44 change intraocular pressure (IOP) in vivo and aqueous outflow resistance in vitro. METHODS Adenoviral constructs of human standard CD44 (Ad-CD44S), soluble CD44 (Ad-sCD44), and empty viral cDNA were injected into the vitreous of BALB/cJ mice, followed by serial IOP measurements. Overexpression of CD44S and sCD44 was verified in vitro by enzyme-linked immunosorbent assay (ELISA) and western blot analysis. Anterior segments of porcine eyes were perfused with the isolated sCD44. sCD44-treated human trabecular meshwork (TM) cells and microdissected porcine TM were examined by confocal microscopy and Optiprep density gradient with western blot analysis to determine changes in lipid raft components. RESULTS Intravitreous injection of adenoviral constructs with either Ad-CD44S or Ad-sCD44 vectors caused prolonged ocular hypertension in mice. Eight days after vector injection, Ad-CD44S significantly elevated IOP to 28.3±1.2 mmHg (mean±SEM, n=8; p<0.001); Ad-sCD44 increased IOP to 18.5±2.6 mmHg (n=8; p<0.01), whereas the IOP of uninjected eyes was 12.7±0.2 mmHg (n=16). The IOP elevation lasted more than 50 days. Topical administration of a γ-secretase inhibitor normalized Ad-sCD44-induced elevated IOP. sCD44 levels were significantly elevated in the aqueous humor of Ad-CD44S and Ad-sCD44 eyes versus contralateral uninjected eyes (p<0.01). Anterior segment perfusion of isolated 32-kDa sCD44 significantly decreased aqueous outflow rates. Co-administration of isolated sCD44 and CD44 neutralizing antibody or of γ-secretase inhibitor significantly enhanced flow rates. sCD44-treated human TM cells displayed cross-linked actin network formation. Optiprep density gradient and western blot analysis of human TM cells treated with sCD44 showed decreased annexin 2 expression and increased phosphorylated annexin 2 and caveolin 1 expression. CONCLUSIONS Our data suggest that sCD44 increases outflow resistance in vivo and in vitro. Viral overexpression of both CD44S and sCD44 is sufficient to cause ocular hypertension. Infusion of sCD44 in porcine anterior segment eyes significantly decreased flow rates. Notably, sCD44 enhanced cross-linked actin network formation. The elevated sCD44 levels seen in POAG aqueous humor may play an important causative role in POAG pathogenesis.
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Affiliation(s)
- Michael Giovingo
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois
| | - Michael Nolan
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois
| | - Ryan McCarty
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois
| | - Iok-Hou Pang
- Department of Pharmaceutical Sciences, University of North Texas Health Science Center, Fort Worth, TX,Department of Cell Biology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX,North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX
| | - Abbot F. Clark
- Department of Cell Biology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX,North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX
| | - Rachel M. Beverley
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois
| | - Steven Schwartz
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois
| | - W. Daniel Stamer
- Department of Ophthalmology, Duke University Medical School, Durham, NC
| | - Loyal Walker
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois
| | - Algis Grybauskas
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois
| | - Kevin Skuran
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois
| | - Paulius V. Kuprys
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois
| | - Beatrice Y.J.T. Yue
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois
| | - Paul A. Knepper
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois,Department of Ophthalmology, Northwestern University Medical School, Chicago, IL
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26
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Shi J, Zhou Z, Di W, Li N. Correlation of CD44v6 expression with ovarian cancer progression and recurrence. BMC Cancer 2013; 13:182. [PMID: 23565736 PMCID: PMC3635997 DOI: 10.1186/1471-2407-13-182] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2012] [Accepted: 04/03/2013] [Indexed: 12/20/2022] Open
Abstract
Background Previously some groups demonstrated that CD44 variant 6 (CD44v6) is correlated with progression and metastasis of ovarian cancer. However, a number of other groups failed to find such an association. Moreover, epithelial ovarian cancer is known to easily metastasize to distinct sites such as the pelvic and abdominal cavities, but the potential association of CD44v6 expression with site-specific metastasis of ovarian cancer has not been explored. This study sought to evaluate the expression of CD44 standard (CD44s) and CD44v6 in primary, metastatic and recurrent epithelial ovarian cancer to explore the potential association of CD44s and CD44v6 with tumor progression and recurrence. Methods Tumor specimens were procured from patients with advanced (FIGO III, G3) and recurrent ovarian serous adenocarcinoma. CD44s and CD44v6 expression in the tumor tissues was evaluated by real-time RT-PCR and Western blot. Moreover, serum soluble CD44s or CD44v6 concentrations of early stage (FIGO I, G1), advanced (FIGO III, G3) and recurrent ovarian serous adenocarcinoma patients were determined by enzyme-linked immunosorbent assays (ELISA). CD44v6 expression in a different set of tumor samples on an ovarian cancer tissue chip was evaluated by immunohistochemistry (IHC) and the correlation of CD44v6 expression with clinicopathologic features was analyzed. Finally, the effects of knockdown of CD44v6 in SKOV3 cells on cell adhesion, invasion and migration were assessed. Results The expression of CD44v6, but not CD44s, is up-regulated in recurrent ovarian serous cancer compared to advanced primary tumor. CD44v6 expression is also preferentially increased in the tumor at the abdominal cavity metastasis site of advanced diseases. Consistently, serum soluble CD44v6 levels of recurrent ovarian cancer were higher than those of early stage and advanced primary diseases. The IHC data demonstrate that CD44v6 expression is correlated with clinicopathologic features and tumor progression. Lastly, knockdown of CD44v6 decreases the adhesion and migration but not invasion capacities of SKOV3 cells. Conclusions CD44v6 expression levels are associated with epithelial ovarian cancer progression, metastasis and relapse. Moreover, serum soluble CD44v6 may be used as a potential marker for identifying tumor relapse. Finally, CD44v6 may play a role in ovarian cancer metastasis by mediating tumor cell adhesion and migration.
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Affiliation(s)
- Jun Shi
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People's Republic of China
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27
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Nolan MJ, Koga T, Walker L, McCarty R, Grybauskas A, Giovingo MC, Skuran K, Kuprys PV, Knepper PA. sCD44 internalization in human trabecular meshwork cells. Invest Ophthalmol Vis Sci 2013; 54:592-601. [PMID: 23287794 DOI: 10.1167/iovs.12-10627] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
PURPOSE To determine whether soluble CD44 (sCD44), a likely biomarker of primary open-angle glaucoma (POAG), is internalized in cultured human trabecular meshwork (TM) cells and trafficked to mitochondria. METHODS In vitro, 32-kD sCD44 was isolated from human sera, biotinylated, and dephosphorylated. TM cells were incubated for 1 hour at 4°C with biotinylated albumin (b-albumin), biotin-labeled sCD44 (b-sCD44), or hypophosphorylated biotin-labeled sCD44 (-p b-sCD44) in the presence or absence of unlabeled sCD44, hyaluronic acid (HA), and a selected 10-mer HA binding peptide. The slides were warmed for 1 or 2 hours at 37°C, and 125 nM MitoTracker Red was added for the last 20 minutes of the incubation. The cells were washed, fixed, incubated with anti-biotin antibody and FITC-labeled goat anti-mouse antibody, and examined under a confocal microscope. RESULTS TM cell membranes were positive for b-sCD44 after 4°C incubation. When the temperature was raised to 37°C, b-sCD44 or -p b-sCD44 appeared in the cytoplasm. The internalization of b-sCD44 was blocked by excess unlabeled sCD44, HA, and a 10-mer HA-binding peptide. Double label experiments with b-sCD44 or -p b-sCD44 and MitoTracker Red indicated partial overlap. The percent co-localization of MitoTracker Red at 2 hours and FITC -p b-sCD44 was 17.4% (P < 0.001) and for FITC b-sCD44 was 11.7% (P < 0.001) compared with b-albumin. The influence of putative CD44 phosphorylation sites on mitochondrial trafficking was determined by TargetP 1.1. CONCLUSIONS sCD44 is internalized by TM cells and trafficked in part to mitochondria, which may be a factor in the toxicity of sCD44 in the POAG disease process.
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Affiliation(s)
- Michael J Nolan
- Department of Ophthalmology and Visual Sciences, University of Illinois-Chicago, Chicago, Illinois, USA
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ADAM17 silencing in mouse colon carcinoma cells: the effect on tumoricidal cytokines and angiogenesis. PLoS One 2012; 7:e50791. [PMID: 23251384 PMCID: PMC3519469 DOI: 10.1371/journal.pone.0050791] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Accepted: 10/23/2012] [Indexed: 11/19/2022] Open
Abstract
ADAM17 (a disintegrin and metalloprotease 17) is a major sheddase for numerous growth factors, cytokines, receptors, and cell adhesion molecules and is often overexpressed in malignant cells. It is generally accepted that ADAM17 promotes tumor development via activating growth factors from the EGF family, thus facilitating autocrine stimulation of tumor cell proliferation and migration. Here we show, using MC38CEA murine colon carcinoma model, that ADAM17 also regulates tumor angiogenesis and cytokine profile. When ADAM17 was silenced in MC38CEA cells, in vivo tumor growth and in vitro cell motility were significantly diminished, but no effect was seen on in vitro cell proliferation. ADAM17-silencing was accompanied by decreased in vitro expression of vascular endothelial growth factor-A and matrix metalloprotease-9, which was consistent with the limited angiogenesis and slower growth seen in ADAM17-silenced tumors. Among the growth factors susceptible to shedding by ADAM17, neuregulin-1 was the only candidate to mediate the effects of ADAM17 on MC38CEA motility and tumor angiogenesis. Concentrations of TNF and IFNγ, cytokines that synergistically induced proapoptotic effects on MC38CEA cells, were significantly elevated in the lysates of ADAM17-silenced tumors compared to mock transfected controls, suggesting a possible role for ADAM17 in host immune suppression. These results introduce new, complex roles of ADAM17 in tumor progression, including its impact on the anti-tumor immune response.
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Moed H, Yang Q, Oranje AP, Panda S, van der Wouden JC. Different strategies for using topical corticosteroids for established eczema. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2012. [DOI: 10.1002/14651858.cd010080] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Heleen Moed
- Erasmus MC; Department of General Practice; PO Box 2040 Room GK 1051 Rotterdam Netherlands 3000 CA
| | - Quan Yang
- University of Bath; Department of Pharmacy and Pharmacology; Bath UK BA2 7AY
| | - Arnold P Oranje
- Erasmus MC, University Medical Center, Havenziekenhuis; Pediatric Dermatology Division, Department of Pediatrics and KinderHaven; Dr. Molewaterplein 60 Rotterdam Netherlands 3015 GD
| | - Saumya Panda
- KPC Medical College and Hospital; Department of Dermatology; 18D/11, Anupama Housing Complex Phase I Kolkata India 700052
| | - Johannes C van der Wouden
- VU University Medical Center; Department of General Practice and EMGO Institute for Health and Care Research; PO Box 7057 Amsterdam Netherlands 1007 MB
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Hanagiri T, Shinohara S, Takenaka M, Shigematsu Y, Yasuda M, Shimokawa H, Nagata Y, Nakagawa M, Uramoto H, So T, Tanaka F. Effects of hyaluronic acid and CD44 interaction on the proliferation and invasiveness of malignant pleural mesothelioma. Tumour Biol 2012; 33:2135-41. [DOI: 10.1007/s13277-012-0473-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Accepted: 07/26/2012] [Indexed: 02/02/2023] Open
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Motomura K, Natsume A, Watanabe R, Ito I, Kato Y, Momota H, Nishikawa R, Mishima K, Nakasu Y, Abe T, Namba H, Nakazato Y, Tashiro H, Takeuchi I, Mori T, Wakabayashi T. Immunohistochemical analysis-based proteomic subclassification of newly diagnosed glioblastomas. Cancer Sci 2012; 103:1871-9. [PMID: 22747609 DOI: 10.1111/j.1349-7006.2012.02377.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 06/20/2012] [Accepted: 06/21/2012] [Indexed: 11/30/2022] Open
Abstract
Recent gene expression and copy number profilings of glioblastoma multiforme (GBM) by The Cancer Genome Atlas (TCGA) Research Network suggest the existence of distinct subtypes of this tumor. However, these approaches might not be easily applicable in routine clinical practice. In the current study, we aimed to establish a proteomics-based subclassification of GBM by integrating their genomic and epigenomic profiles. We subclassified 79 newly diagnosed GBM based on expression patterns determined by comprehensive immunohistochemical observation in combination with their DNA copy number and DNA methylation patterns. The clinical relevance of our classification was independently validated in TCGA datasets. Consensus clustering identified the four distinct GBM subtypes: Oligodendrocyte Precursor (OPC) type, Differentiated Oligodendrocyte (DOC) type, Astrocytic Mesenchymal (AsMes) type and Mixed type. The OPC type was characterized by highly positive scores of Olig2, PDGFRA, p16, p53 and synaptophysin. In contrast, the AsMes type was strongly associated with strong expressions of nestin, CD44 and podoplanin, with a high glial fibrillary acidic protein score. The median overall survival of OPC-type patients was significantly longer than that of the AsMes-type patients (19.9 vs 12.8 months). This finding was in agreement with the Oncomine analysis of TCGA datasets, which revealed that PDGFRA and Olig2 were favorable prognostic factors and podoplanin and CD44 were associated with a poor clinical outcome. This is the first study to establish a subclassification of GBM on the basis of immunohistochemical analysis. Our study will shed light on personalized therapies that might be feasible in daily neuropathological practice.
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Affiliation(s)
- Kazuya Motomura
- Department of Neurosurgery, Nagoya University School of Medicine, Japan
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Yoshida T, Matsuda Y, Naito Z, Ishiwata T. CD44 in human glioma correlates with histopathological grade and cell migration. Pathol Int 2012; 62:463-70. [DOI: 10.1111/j.1440-1827.2012.02823.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Schliekelman MJ, Gibbons DL, Faca VM, Creighton CJ, Rizvi ZH, Zhang Q, Wong CH, Wang H, Ungewiss C, Ahn YH, Shin DH, Kurie JM, Hanash SM. Targets of the tumor suppressor miR-200 in regulation of the epithelial-mesenchymal transition in cancer. Cancer Res 2011; 71:7670-82. [PMID: 21987723 DOI: 10.1158/0008-5472.can-11-0964] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The microRNA-200 (miR-200) family restricts epithelial-mesenchymal transition (EMT) and metastasis in tumor cell lines derived from mice that develop metastatic lung adenocarcinoma. To determine the mechanisms responsible for EMT and metastasis regulated by this microRNA, we conducted a global liquid chromatography/tandem mass spectrometry analysis to compare metastatic and nonmetastatic murine lung adenocarcinoma cells which had undergone EMT because of loss of miR-200. An analysis of syngeneic tumors generated by these cells identified multiple novel proteins linked to metastasis. In particular, the analysis of conditioned media, cell surface proteins, and whole-cell lysates from metastatic and nonmetastatic cells revealed large-scale modifications in the tumor microenvironment. Specific increases were documented in extracellular matrix (ECM) proteins, peptidases, and changes in distribution of cell adhesion proteins in the metastatic cell lines. Integrating proteomic data from three subproteomes, we defined constituents of a multilayer protein network that both regulated and mediated the effects of TGFβ. Lastly, we identified ECM proteins and peptidases that were directly regulated by miR-200. Taken together, our results reveal how expression of miR-200 alters the tumor microenvironment to inhibit the processes of EMT and metastasis.
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Kim JS, Werth VP. Identification of specific chondroitin sulfate species in cutaneous autoimmune disease. J Histochem Cytochem 2011; 59:780-90. [PMID: 21804080 DOI: 10.1369/0022155411411304] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Cutaneous lupus erythematosus and dermatomyositis (DM) are chronic inflammatory diseases of the skin with accumulated dermal mucin. Earlier work has shown chondroitin sulfate (CS) accumulation within the dermis of discoid lupus erythematosus (DLE), subacute cutaneous lupus erythematosus (SCLE), and DM lesions compared with control skin. Immunohistochemistry for C4S revealed a greater density in DLE and DM lesions, whereas SCLE lesions did not differ from controls. Scleredema and scleromyxedema are attributed to increased hyaluronic acid, and lesional samples from these diseases also demonstrated accumulated dermal C4S. Interferon-γ and interleukin-1α, but not interferon-α, treatment of cultured dermal fibroblasts induced mRNA expression of CHST-11, which attaches sulfates to the 4-position of unsulfated chondroitin. These studies on possible CS core proteins revealed that serglycin, known to have C6S side chains in endothelial cells, had greater density within DM dermal endothelia but not in DLE or SCLE, following the pattern of C6S overexpression reported previously. CD44 variants expand the CS binding repertoire of the glycoprotein; CD44v7 co-localized to the distribution of C4S in DLE lesions, a finding not observed in DM, SCLE lesions, or controls. Because C4S and C6S have immunologic effects, their dysregulation in cutaneous mucinoses may contribute to the pathogenesis of these disorders.
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Affiliation(s)
- Jessica S Kim
- New York University School of Medicine, New York, New York, USA
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Loeffler-Ragg J, Germing U, Sperr W, Herrmann H, Zwierzina H, Valent P, Ulmer H, Stauder R. Serum CD44 levels predict survival in patients with low-risk myelodysplastic syndromes. Crit Rev Oncol Hematol 2011; 78:150-61. [DOI: 10.1016/j.critrevonc.2010.05.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2010] [Revised: 05/20/2010] [Accepted: 05/28/2010] [Indexed: 10/19/2022] Open
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Gibb DR, Saleem SJ, Chaimowitz NS, Mathews J, Conrad DH. The emergence of ADAM10 as a regulator of lymphocyte development and autoimmunity. Mol Immunol 2011; 48:1319-27. [PMID: 21236490 DOI: 10.1016/j.molimm.2010.12.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Revised: 11/17/2010] [Accepted: 12/08/2010] [Indexed: 12/22/2022]
Abstract
Proteolytic processing of transmembrane receptors and ligands can have a dramatic impact on cell signaling processes and subsequent cellular responses, including activation and differentiation. A member of the disintegrin and metalloproteinase family, ADAM10, has emerged as a prominent regulator of numerous receptors and ligands, including Notch and CD23. Here, we review studies resulting from the recent generation of ADAM10 conditional knockout mice which revealed a critical role for ADAM10 in Notch-dependent lymphocyte development. Additionally, we discuss results of numerous in vitro and ex vivo studies indicating that ADAM10 regulates the production of multiple secreted factors that contribute to autoimmune reactions.
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Affiliation(s)
- David R Gibb
- Department of Microbiology and Immunology, Virginia Commonwealth University, School of Medicine, P.O. Box 980678, Richmond, VA 23298, USA
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Gazi U, Rosas M, Singh S, Heinsbroek S, Haq I, Johnson S, Brown GD, Williams DL, Taylor PR, Martinez-Pomares L. Fungal recognition enhances mannose receptor shedding through dectin-1 engagement. J Biol Chem 2011; 286:7822-7829. [PMID: 21205820 PMCID: PMC3048669 DOI: 10.1074/jbc.m110.185025] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The mannose receptor (MR) is an endocytic type I membrane molecule with a broad ligand specificity that is involved in both hemostasis and pathogen recognition. Membrane-anchored MR is cleaved by a metalloproteinase into functional soluble MR (sMR) composed of the extracellular domains of intact MR. Although sMR production was initially considered a constitutive process, enhanced MR shedding has been observed in response to the fungal pathogen Pneumocystis carinii. In this work, we have investigated the mechanism mediating enhanced MR shedding in response to fungi. We show that other fungal species, including Candida albicans and Aspergillus fumigatus, together with zymosan, a preparation of the cell wall of Saccharomyces cerevisiae, mimic the effect of P. carinii on sMR production and that this effect takes place mainly through β-glucan recognition. Additionally, we demonstrate that MR cleavage in response to C. albicans and bioactive particulate β-glucan requires expression of dectin-1. Our data, obtained using specific inhibitors, are consistent with the canonical Syk-mediated pathway triggered by dectin-1 being mainly responsible for inducing MR shedding, with Raf-1 being partially involved. As in the case of steady-state conditions, MR shedding in response to C. albicans and β-glucan particles requires metalloprotease activity. The induction of MR shedding by dectin-1 has clear implications for the role of MR in fungal recognition, as sMR was previously shown to retain the ability to bind fungal pathogens and can interact with numerous host molecules, including lysosomal hydrolases. Thus, MR cleavage could also impact on the magnitude of inflammation during fungal infection.
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Affiliation(s)
- Umut Gazi
- From the School of Molecular Medical Sciences,; Respiratory Biomedical Research Unit, Queen's Medical Centre, University of Nottingham, Nottingham NG7 2UH, United Kingdom
| | - Marcela Rosas
- the Department of Infection, Immunity, and Biochemistry, Cardiff University School of Medicine, Cardiff CF14 4XN, United Kingdom
| | - Sonali Singh
- From the School of Molecular Medical Sciences,; Respiratory Biomedical Research Unit, Queen's Medical Centre, University of Nottingham, Nottingham NG7 2UH, United Kingdom
| | - Sigrid Heinsbroek
- the Department of Gastroenterology, Academic Medical Centre, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Imran Haq
- Respiratory Biomedical Research Unit, Queen's Medical Centre, University of Nottingham, Nottingham NG7 2UH, United Kingdom,; Division of Therapeutics and Molecular Medicine, and
| | - Simon Johnson
- Respiratory Biomedical Research Unit, Queen's Medical Centre, University of Nottingham, Nottingham NG7 2UH, United Kingdom,; Division of Therapeutics and Molecular Medicine, and
| | - Gordon D Brown
- the Aberdeen Fungal Group, Institute of Medical Sciences, University of Aberdeen, Aberdeen AB24 3FX, Scotland, United Kingdom, and
| | - David L Williams
- the Department of Surgery, Quillen College of Medicine, East Tennessee State University, Johnson City, Tennessee 37614
| | - Philip R Taylor
- the Department of Infection, Immunity, and Biochemistry, Cardiff University School of Medicine, Cardiff CF14 4XN, United Kingdom
| | - Luisa Martinez-Pomares
- From the School of Molecular Medical Sciences,; Respiratory Biomedical Research Unit, Queen's Medical Centre, University of Nottingham, Nottingham NG7 2UH, United Kingdom,.
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Lipowsky HH, Sah R, Lescanic A. Relative roles of doxycycline and cation chelation in endothelial glycan shedding and adhesion of leukocytes. Am J Physiol Heart Circ Physiol 2010; 300:H415-22. [PMID: 21148759 DOI: 10.1152/ajpheart.00923.2010] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Leukocyte [white blood cell (WBC)] adhesion and shedding of glycans from the endothelium [endothelial cells (ECs)] in response to the chemoattractant f-Met-Leu-Phe (fMLP) has been shown to be attenuated by topical inhibition of matrix metalloproteases (MMPs) with doxycycline (Doxy). Since Doxy also chelates divalent cations, these responses were studied to elucidate the relative roles of cation chelation and MMP inhibition. WBC-EC adhesion, WBC rolling flux, and WBC rolling velocity were studied in postcapillary venules in the rat mesentery during superfusion with the cation chelator EDTA or Doxy. Shedding and accumulation of glycans on ECs, with and without fMLP, were quantified by the surface concentration of lectin (BS-1)-coated fluorescently labeled microspheres (FLMs) during constant circulating concentration. Without fMLP, low concentrations of EDTA (1-3 mM) increased FLM-EC sequestration due to disruption of the permeability barrier with prolonged exposure. In contrast, with 0.5 μM Doxy alone, FLM adhesion remained constant (i.e., no change in glycan content) on ECs, and WBC adhesion increased with prolonged superfusion. Without fMLP, EDTA did not affect firm WBC-EC adhesion but reduced WBC rolling flux in a dose-dependent manner. With fMLP, EDTA did not inhibit WBC adhesion, whereas Doxy did during the first 20 min of superfusion. Thus, the inhibition by Doxy of glycan (FLM) shedding and WBC adhesion in response to fMLP results from MMP inhibition, in contrast to cation chelation. With either Doxy or the MMP inhibitor GM-6001, WBC rolling velocity decreased by 50%, as in the case with fMLP, suggesting that MMP inhibition reduces sheddase activity, which increases the adhesiveness of rolling WBCs. These events increase the effective leukocrit on the venular wall and increase firm WBC-EC adhesion. Thus, MMP inhibitors have both a proadhesion effect by reducing sheddase activity while exerting an antiadhesion effect by inhibiting glycocalyx shedding and subsequent exposure of adhesion molecules on the EC surface.
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Affiliation(s)
- Herbert H Lipowsky
- Department of Bioengineering, The Pennsylvania State University, University Park, Pennsylvania16802, USA.
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Nakajima K, Taniguchi K, Mutoh KI. Expression of CD44v6 as matrix-associated ectodomain in the bone development. J Vet Med Sci 2010; 72:1017-22. [PMID: 20339257 DOI: 10.1292/jvms.10-0002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This study describes the expression of CD44v6 in the bone development and is the first study of its kind to the authors' best knowledge. The CD44 family is a family of transmembrane glycoproteins that acts as cell adhesion molecules binding cells to other cells as well as cells to the extracellular matrix. It has been suggested that the CD44v6, a family member of CD44, is closely related to the osteosarcoma metastasis. In general, when cancer cells metastasize, they revert to their immature forms. In the present study, therefore, we have investigated CD44v6 and the standard form of CD44 (CD44st) in two types of immature forms of bone tissues: developmentally immature stages from fetuses to adults as well as experimentally immature stages using fracture models. CD44st expression was identified in osteoblasts, osteocytes, and in the peripheral portion of the bone matrix from the fetal to young ages of rats. Many more intense reactions for CD44v6 were observed in the bone matrix than CD44st in fetal stages. In experimental fracture models, positive immunoreactions to CD44st were clearly observed in the osteoblasts and osteocytes. CD44v6-positive immunoreactivity, however, was not detected in either osteoblasts or the bone matrix. In conclusion, CD44v6 is expressed in the embryonic stages and may be involved in the bone matrix formation as a matrix-associated ectodomain during normal ontogenetic development but not involved in the process of fracture healing.
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Affiliation(s)
- Kosei Nakajima
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Kitasato University, Aomori, Japan
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Xu Y, Stamenkovic I, Yu Q. CD44 attenuates activation of the hippo signaling pathway and is a prime therapeutic target for glioblastoma. Cancer Res 2010; 70:2455-64. [PMID: 20197461 DOI: 10.1158/0008-5472.can-09-2505] [Citation(s) in RCA: 157] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Glioblastoma multiforme (GBM) is the most aggressive brain tumor that, by virtue of its resistance to chemotherapy and radiotherapy, is currently incurable. Identification of molecules whose targeting may eliminate GBM cells and/or sensitize glioblastoma cells to cytotoxic drugs is therefore urgently needed. CD44 is a major cell surface hyaluronan receptor and cancer stem cell marker that has been implicated in the progression of a variety of cancer types. However, the major downstream signaling pathways that mediate its protumor effects and the role of CD44 in the progression and chemoresponse of GBM have not been established. Here we show that CD44 is upregulated in GBM and that its depletion blocks GBM growth and sensitizes GBM cells to cytotoxic drugs in vivo. Consistent with this observation, CD44 antagonists potently inhibit glioma growth in preclinical mouse models. We provide the first evidence that CD44 functions upstream of the mammalian Hippo signaling pathway and that CD44 promotes tumor cell resistance to reactive oxygen species-induced and cytotoxic agent-induced stress by attenuating activation of the Hippo signaling pathway. Together, our results identify CD44 as a prime therapeutic target for GBM, establish potent antiglioma efficacy of CD44 antagonists, uncover a novel CD44 signaling pathway, and provide a first mechanistic explanation as to how upregulation of CD44 may constitute a key event in leading to cancer cell resistance to stresses of different origins. Finally, our results provide a rational explanation for the observation that functional inhibition of CD44 augments the efficacy of chemotherapy and radiation therapy.
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Affiliation(s)
- Yin Xu
- Department of Oncological Sciences, Mount Sinai School of Medicine, New York, New York 10029, USA
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