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Taylor E, Wynen H, Heyland A. Thyroid hormone membrane receptor binding and transcriptional regulation in the sea urchin Strongylocentrotus purpuratus. Front Endocrinol (Lausanne) 2023; 14:1195733. [PMID: 37305042 PMCID: PMC10250714 DOI: 10.3389/fendo.2023.1195733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 05/10/2023] [Indexed: 06/13/2023] Open
Abstract
Thyroid hormones (THs) are small amino acid derived signaling molecules with broad physiological and developmental functions in animals. Specifically, their function in metamorphic development, ion regulation, angiogenesis and many others have been studied in detail in mammals and some other vertebrates. Despite extensive reports showing pharmacological responses of invertebrate species to THs, little is known about TH signaling mechanisms outside of vertebrates. Previous work in sea urchins suggests that non-genomic mechanisms are activated by TH ligands. Here we show that several THs bind to sea urchin (Strongylocentrotus purpuratus) cell membrane extracts and are displaced by ligands of RGD-binding integrins. A transcriptional analysis across sea urchin developmental stages shows activation of genomic and non-genomic pathways in response to TH exposure, suggesting that both pathways are activated by THs in sea urchin embryos and larvae. We also provide evidence associating TH regulation of gene expression with TH response elements in the genome. In ontogeny, we found more differentially expressed genes in older larvae compared to gastrula stages. In contrast to gastrula stages, the acceleration of skeletogenesis by thyroxine in older larvae is not fully inhibited by competitive ligands or inhibitors of the integrin membrane receptor pathway, suggesting that THs likely activate multiple pathways. Our data confirms a signaling function of THs in sea urchin development and suggests that both genomic and non-genomic mechanisms play a role, with genomic signaling being more prominent during later stages of larval development.
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Affiliation(s)
| | | | - Andreas Heyland
- Department of Integrative Biology, University of Guelph, Guelph, ON, Canada
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2
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Chen Y, Hong C, Zhou Q, Qin Z. Roles of Cadherin2 in Thyroid Cancer. Front Oncol 2022; 12:804287. [PMID: 35756646 PMCID: PMC9218104 DOI: 10.3389/fonc.2022.804287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 05/19/2022] [Indexed: 11/23/2022] Open
Abstract
Background The majority of drug-resistant cells in Thyroid cancer (THCA) tend to exhibit an Epithelial mesenchymal transition (EMT) phenotype, and abnormal expression of the cell adhesion molecule Cadherin2 (CDH2) is a hallmark of EMT. However, the roles of CDH2 in THCA and its underlying mechanisms are unknown. Methods We analyzed the CDH2 expression in The Cancer Genome Atlas (TCGA) database and screened for genes positively associated with CDH2. Small interfering RNA and cell transfection were used for knocking down CDH2 in THCA cells, cell counting kit-8 (CCK-8) assay and immunofluorescence to detect cell proliferation. Binding miRNAs of CDH2 and CDH2-associated genes were predicted using the Encyclopedia of RNA Interactomes (ENCORI) database. The expression of genes in clinical THCA tissues was investigated from the Human Protein Atlas (HPA) database and validated by qRT-PCR. We conducted the cell functions pathways of CDH2 and CDH2-associated gene FRMD3 by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis. We also showed the correlation between CDH2 and FRMD3 expression and tumor immune infiltration. Results The expression of CDH2 was significantly higher in THCA tumor tissues compared to normal tissues. Moreover, there were strongly associations of CDH2 expression with the stages T and N. Cellular function assays showed that CDH2 exerted its growth-promoting activity of THCA. To better understand how CDH2 was regulated in THCA, we sought genes associated with CDH2. Correlation analysis revealed that there were negative correlations between genes (CDH2, FRMD3) and miRNAs (hsa-miR-410-3p, hsa-miR-411-5p, hsa-miR-299-5p). Moreover, CDH2 and FRMD3 expression were significantly higher in tumor tissues than in normal tissues, while hsa-miR-410-3p, hsa-miR-411-5p and hsa-miR-299-5p were significantly decreased in tumor tissues compared with normal tissues in THCA. GO and KEEG results showed that CDH2 and FRMD3 were strongly associated with immune-related functions. High expression of CDH2 and FRMD3 was linked to the suppression of immune cells. There were strong negativity correlations between CDH2, FRMD3 and T-cell exhaustion factors. Conclusion Our data indicated that CDH2 and CDH2-related gene FRMD3 might have the critical effects on altering tumors becoming ‘cold tumors’ eventually leading to immune checkpoint inhibitor resistance.
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Affiliation(s)
- Yun Chen
- Cancer Center, Department of Medical Oncology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Chaojin Hong
- Cancer Center, Department of Medical Oncology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Qihao Zhou
- Cancer Center, Department of Medical Oncology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China
| | - Zhiquan Qin
- Cancer Center, Department of Medical Oncology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China
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3
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Aladin DMK, Chu YS, Shen S, Robinson RC, Dufour S, Viasnoff V, Borghi N, Thiery JP. Extracellular domains of E-cadherin determine key mechanical phenotypes of an epithelium through cell- and non-cell-autonomous outside-in signaling. PLoS One 2021; 16:e0260593. [PMID: 34937057 PMCID: PMC8694416 DOI: 10.1371/journal.pone.0260593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 11/14/2021] [Indexed: 11/18/2022] Open
Abstract
Cadherins control intercellular adhesion in most metazoans. In vertebrates, intercellular adhesion differs considerably between cadherins of type-I and type-II, predominantly due to their different extracellular regions. Yet, intercellular adhesion critically depends on actomyosin contractility, in which the role of the cadherin extracellular region is unclear. Here, we dissect the roles of the Extracellular Cadherin (EC) Ig-like domains by expressing chimeric E-cadherin with E-cadherin and cadherin-7 Ig-like domains in cells naturally devoid of cadherins. Using cell-cell separation, cortical tension measurement, tissue stretching and migration assays, we show that distinct EC repeats in the extracellular region of cadherins differentially modulate epithelial sheet integrity, cell-cell separation forces, and cell cortical tension with the Cdc42 pathway, which further differentially regulate epithelial tensile strength, ductility, and ultimately collective migration. Interestingly, dissipative processes rather than static adhesion energy mostly dominate cell-cell separation forces. We provide a framework for the emergence of epithelial phenotypes from cell mechanical properties dependent on EC outside-in signaling.
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Affiliation(s)
- Darwesh Mohideen Kaderbatcha Aladin
- Mechanobiology Institute, National University of Singapore, Singapore, Singapore
- Institute of Molecular and Cell Biology, A*STAR, Singapore, Singapore
- BioSyM Interdisciplinary Research Group, Singapore-MIT Alliance for Research and Technology (SMART), Singapore, Singapore
| | - Yeh Shiu Chu
- Institute of Molecular and Cell Biology, A*STAR, Singapore, Singapore
| | - Shuo Shen
- Sinopharm, Zhengdian, Jiangxia District, Wuhan, Hubei, China
| | | | - Sylvie Dufour
- IMRB, Université Paris Est Créteil, INSERM, Créteil, France
- * E-mail: (NB); (VV); (SD); (JPT)
| | - Virgile Viasnoff
- Mechanobiology Institute, National University of Singapore, Singapore, Singapore
- UMI 3639 CNRS, Singapore
- * E-mail: (NB); (VV); (SD); (JPT)
| | - Nicolas Borghi
- Institut Jacques Monod, Université de Paris, CNRS, Paris, France
- * E-mail: (NB); (VV); (SD); (JPT)
| | - Jean Paul Thiery
- Mechanobiology Institute, National University of Singapore, Singapore, Singapore
- Institute of Molecular and Cell Biology, A*STAR, Singapore, Singapore
- Guangzhou Laboratory, International Bioisland, Guangzhou, Haizhu District, China
- * E-mail: (NB); (VV); (SD); (JPT)
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4
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Troyanovsky RB, Sergeeva AP, Indra I, Chen CS, Kato R, Shapiro L, Honig B, Troyanovsky SM. Sorting of cadherin-catenin-associated proteins into individual clusters. Proc Natl Acad Sci U S A 2021; 118:e2105550118. [PMID: 34272290 PMCID: PMC8307379 DOI: 10.1073/pnas.2105550118] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The cytoplasmic tails of classical cadherins form a multiprotein cadherin-catenin complex (CCC) that constitutes the major structural unit of adherens junctions (AJs). The CCC in AJs forms junctional clusters, "E clusters," driven by cis and trans interactions in the cadherin ectodomain and stabilized by α-catenin-actin interactions. Additional proteins are known to bind to the cytoplasmic region of the CCC. Here, we analyze how these CCC-associated proteins (CAPs) integrate into cadherin clusters and how they affect the clustering process. Using a cross-linking approach coupled with mass spectrometry, we found that the majority of CAPs, including the force-sensing protein vinculin, interact with CCCs outside of AJs. Accordingly, structural modeling shows that there is not enough space for CAPs the size of vinculin to integrate into E clusters. Using two CAPs, scribble and erbin, as examples, we provide evidence that these proteins form separate clusters, which we term "C clusters." As proof of principle, we show, by using cadherin ectodomain monoclonal antibodies (mAbs), that mAb-bound E-cadherin forms separate clusters that undergo trans interactions. Taken together, our data suggest that, in addition to its role in cell-cell adhesion, CAP-driven CCC clustering serves to organize cytoplasmic proteins into distinct domains that may synchronize signaling networks of neighboring cells within tissues.
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Affiliation(s)
- Regina B Troyanovsky
- Department of Dermatology, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Alina P Sergeeva
- Department of Systems Biology, Columbia University Medical Center, New York, NY 10032
| | - Indrajyoti Indra
- Department of Dermatology, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Chi-Shuo Chen
- Department of Dermatology, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Rei Kato
- Department of Dermatology, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Lawrence Shapiro
- Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY 10032
- Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY 10027
| | - Barry Honig
- Department of Systems Biology, Columbia University Medical Center, New York, NY 10032;
- Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY 10032
- Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY 10027
- Department of Medicine, Columbia University, New York, NY 10032
| | - Sergey M Troyanovsky
- Department of Dermatology, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611;
- Department of Cell and Developmental Biology, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
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5
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Sinha G, Ferrer AI, Ayer S, El-Far MH, Pamarthi SH, Naaldijk Y, Barak P, Sandiford OA, Bibber BM, Yehia G, Greco SJ, Jiang JG, Bryan M, Kumar R, Ponzio NM, Etchegaray JP, Rameshwar P. Specific N-cadherin-dependent pathways drive human breast cancer dormancy in bone marrow. Life Sci Alliance 2021; 4:4/7/e202000969. [PMID: 34078741 PMCID: PMC8200294 DOI: 10.26508/lsa.202000969] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 04/19/2021] [Accepted: 05/20/2021] [Indexed: 12/12/2022] Open
Abstract
The challenge for treating breast cancer (BC) is partly due to long-term dormancy driven by cancer stem cells (CSCs) capable of evading immune response and resist chemotherapy. BC cells show preference for the BM, resulting in poor prognosis. CSCs use connexin 43 (Cx43) to form gap junctional intercellular communication with BM niche cells, fibroblasts, and mesenchymal stem cells (MSCs). However, Cx43 is an unlikely target to reverse BC dormancy because of its role as a hematopoietic regulator. We found N-cadherin (CDH2) and its associated pathways as potential drug targets. CDH2, highly expressed in CSCs, interacts intracellularly with Cx43, colocalizes with Cx43 in BC cells within BM biopsies of patients, and is required for Cx43-mediated gap junctional intercellular communication with BM niche cells. Notably, CDH2 and anti-apoptotic pathways maintained BC dormancy. We thereby propose these pathways as potential pharmacological targets to prevent dormancy and chemosensitize resistant CSCs.
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Affiliation(s)
- Garima Sinha
- Rutgers School of Graduate Studies at New Jersey Medical School, Newark, NJ, USA.,Department of Medicine, Hematology/Oncology, Rutgers New Jersey Medicine School, Newark, NJ, USA
| | - Alejandra I Ferrer
- Rutgers School of Graduate Studies at New Jersey Medical School, Newark, NJ, USA.,Department of Medicine, Hematology/Oncology, Rutgers New Jersey Medicine School, Newark, NJ, USA
| | - Seda Ayer
- Department of Medicine, Hematology/Oncology, Rutgers New Jersey Medicine School, Newark, NJ, USA
| | - Markos H El-Far
- Rutgers School of Graduate Studies at New Jersey Medical School, Newark, NJ, USA.,Department of Medicine, Hematology/Oncology, Rutgers New Jersey Medicine School, Newark, NJ, USA
| | - Sri Harika Pamarthi
- Department of Medicine, Hematology/Oncology, Rutgers New Jersey Medicine School, Newark, NJ, USA
| | - Yahaira Naaldijk
- Department of Medicine, Hematology/Oncology, Rutgers New Jersey Medicine School, Newark, NJ, USA
| | - Pradeep Barak
- Department of Pathology, Immunology and Laboratory Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA.,ONI, Linacre House, Oxford, UK
| | - Oleta A Sandiford
- Department of Medicine, Hematology/Oncology, Rutgers New Jersey Medicine School, Newark, NJ, USA
| | - Bernadette M Bibber
- Rutgers School of Graduate Studies at New Jersey Medical School, Newark, NJ, USA.,Department of Medicine, Hematology/Oncology, Rutgers New Jersey Medicine School, Newark, NJ, USA
| | - Ghassan Yehia
- Genome Editing Shared Resource, Office of Research and Economic Development, Rutgers University, New Brunswick, NJ, USA
| | - Steven J Greco
- Department of Medicine, Hematology/Oncology, Rutgers New Jersey Medicine School, Newark, NJ, USA
| | - Jie-Gen Jiang
- Department of Pathology, Immunology and Laboratory Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA.,ONI, Linacre House, Oxford, UK
| | - Margarette Bryan
- Department of Medicine, Hematology/Oncology, Rutgers New Jersey Medicine School, Newark, NJ, USA
| | - Rakesh Kumar
- Department of Biotechnology, Rajiv Gandhi Centre for Biotechnology, Kerala, India
| | - Nicholas M Ponzio
- Department of Pathology, Immunology and Laboratory Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA.,ONI, Linacre House, Oxford, UK
| | | | - Pranela Rameshwar
- Rutgers School of Graduate Studies at New Jersey Medical School, Newark, NJ, USA .,Department of Medicine, Hematology/Oncology, Rutgers New Jersey Medicine School, Newark, NJ, USA
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6
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George SM, Lu F, Rao M, Leach LL, Gross JM. The retinal pigment epithelium: Development, injury responses, and regenerative potential in mammalian and non-mammalian systems. Prog Retin Eye Res 2021; 85:100969. [PMID: 33901682 DOI: 10.1016/j.preteyeres.2021.100969] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 03/23/2021] [Accepted: 04/07/2021] [Indexed: 12/13/2022]
Abstract
Diseases that result in retinal pigment epithelium (RPE) degeneration, such as age-related macular degeneration (AMD), are among the leading causes of blindness worldwide. Atrophic (dry) AMD is the most prevalent form of AMD and there are currently no effective therapies to prevent RPE cell death or restore RPE cells lost from AMD. An intriguing approach to treat AMD and other RPE degenerative diseases is to develop therapies focused on stimulating endogenous RPE regeneration. For this to become feasible, a deeper understanding of the mechanisms underlying RPE development, injury responses and regenerative potential is needed. In mammals, RPE regeneration is extremely limited; small lesions can be repaired by the expansion of adjacent RPE cells, but large lesions cannot be repaired as remaining RPE cells are unable to functionally replace lost RPE tissue. In some injury paradigms, RPE cells proliferate but do not regenerate a morphologically normal monolayer, while in others, proliferation is pathogenic and results in further disruption to the retina. This is in contrast to non-mammalian vertebrates, which possess tremendous RPE regenerative potential. Here, we discuss what is known about RPE formation during development in mammalian and non-mammalian vertebrates, we detail the processes by which RPE cells respond to injury, and we describe examples of RPE-to-retina and RPE-to-RPE regeneration in non-mammalian vertebrates. Finally, we outline barriers to RPE-dependent regeneration in mammals that could potentially be overcome to stimulate a regenerative response from the RPE.
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Affiliation(s)
- Stephanie M George
- Department of Ophthalmology, Louis J. Fox Center for Vision Restoration, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Fangfang Lu
- Department of Ophthalmology, Louis J. Fox Center for Vision Restoration, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA; Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Mishal Rao
- Department of Ophthalmology, Louis J. Fox Center for Vision Restoration, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Lyndsay L Leach
- Department of Ophthalmology, Louis J. Fox Center for Vision Restoration, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
| | - Jeffrey M Gross
- Department of Ophthalmology, Louis J. Fox Center for Vision Restoration, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA; Department of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA.
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7
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Colín-Val Z, López-Díazguerrero NE, López-Marure R. DHEA inhibits proliferation, migration and alters mesenchymal-epithelial transition proteins through the PI3K/Akt pathway in MDA-MB-231 cells. J Steroid Biochem Mol Biol 2021; 208:105818. [PMID: 33508440 DOI: 10.1016/j.jsbmb.2021.105818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/19/2020] [Accepted: 01/08/2021] [Indexed: 02/07/2023]
Abstract
Cancer is one of the leading causes of death worldwide, and breast cancer is the most common among women. Dehydroepiandrosterone (DHEA), the most abundant steroid hormone in human serum, inhibits proliferation and migration of breast cancer cells, modulating the expression of proteins involved in mesenchymal-epithelial transition (MET). However, the underlying molecular mechanisms are not fully understood. DHEA effects on the triple-negative breast cancer cell line MDA-MB-231 (mesenchymal stem-like) could be exerted by binding to receptors tyrosine kinase (RTKs) and signaling through MEK/ERK and/or PI3K/Akt pathways. In this study, MDA-MB-231 cells were exposed to DHEA in the presence of pharmacological inhibitors of these pathways and a siRNA against PIK3CA gene, which blocks PI3K pathway. Cell proliferation was measured by crystal violet staining, migration by the wound healing and transwell assays, and MET protein expression by western blot. A xenograft tumor growth in nude mice (nu-/nu-) using a siRNA against PI3K was also performed. Results showed that neither of the inhibitors used reverted the antiproliferative activity of DHEA. However, wortmannin and LY294002, inhibitors of the PI3K/Akt pathway, abolished the up- and down-regulation of E- and N-cadherin expression respectively, and inhibition of migration induced by DHEA in MDA-MB-231 cells. The siRNA that blocks the PI3K pathway, abolished the effects of DHEA on proliferation, migration, MET proteins expression and the growth of tumors in nude mice. In conclusion, these results suggest that PI3K/Akt pathway participates in the effects of DHEA on breast cancer cells.
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Affiliation(s)
- Zaira Colín-Val
- Departamento de Fisiología, Instituto Nacional de Cardiología "Ignacio Chávez", Ciudad de México, Mexico; Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Mexico
| | | | - Rebeca López-Marure
- Departamento de Fisiología, Instituto Nacional de Cardiología "Ignacio Chávez", Ciudad de México, Mexico.
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8
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Zhu J, Zhou H, Li C, He Y, Pan Y, Shou Q, Fang M, Wan H, Yang J. Guanxinshutong capsule ameliorates cardiac function and architecture following myocardial injury by modulating ventricular remodeling in rats. Biomed Pharmacother 2020; 130:110527. [PMID: 32688142 DOI: 10.1016/j.biopha.2020.110527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 07/10/2020] [Accepted: 07/11/2020] [Indexed: 12/27/2022] Open
Abstract
Guanxinshutong capsule (GXST), which consists of five traditional Chinese medicines, has been used for a long time in China for the treatment of cardiovascular diseases, such as coronary artery disease and myocardial infarction. However, the effects on GXST on myocardial injury (MI) have not been studied in detail. In these experiments, we found that GXST administration decreased MI-associated ventricular remodeling (VR) with a reduction in interventricular septal thickness in diastole (IVSd), left ventricular posterior wall diameter in systole (LVPWs), and left ventricular posterior wall diameter in diastole (LVPWd) to ameliorate cardiac function and architecture, as measured by echocardiography. Furthermore, histological analysis showed that GXST could ameliorate pathological alterations in the myocardium. And Sirius red staining, wheat germ agglutinin staining and inflammation-related immunohistochemistry results showed that GXST ameliorated the fibrosis areas, cardiac hypertrophy and inflammation (IL-6 and TNF-α). In addition, GXST upregulated intercellular junction proteins (N-cad and Cx-43) and downregulated the angiogenesis-related proteins (PDGF and VEGFA), myocardial fibrosis-related proteins (TGF-β1), and matrix metalloproteinase (MMP-2 and MMP-9). We also found that GXST medium-dose group (1 g/kg/d) dosage was the most efficacious. In conclusion, GXST protected cardiac tissues against MI by reducing VR, thus indicating the potential application of GXST in the treatment of MI.
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Affiliation(s)
- Jiaqi Zhu
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China
| | - Huifen Zhou
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China
| | - Chang Li
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China
| | - Yu He
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China
| | - Yuming Pan
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China
| | - Qiyang Shou
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China
| | - Minsun Fang
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China
| | - Haitong Wan
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China.
| | - Jiehong Yang
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China.
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9
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Reis LM, Houssin NS, Zamora C, Abdul-Rahman O, Kalish JM, Zackai EH, Plageman TF, Semina EV. Novel variants in CDH2 are associated with a new syndrome including Peters anomaly. Clin Genet 2019; 97:502-508. [PMID: 31650526 DOI: 10.1111/cge.13660] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 10/22/2019] [Accepted: 10/22/2019] [Indexed: 11/26/2022]
Abstract
Peters anomaly (PA) is a congenital corneal opacity associated with corneo-lenticular attachments. PA can be isolated or part of a syndrome with most cases remaining genetically unsolved. Exome sequencing of a trio with syndromic PA and 145 additional unexplained probands with developmental ocular conditions identified a de novo splicing and three novel missense heterozygous CDH2 variants affecting the extracellular cadherin domains in four individuals with PA. Syndromic anomalies were seen in three individuals and included left-sided cardiac lesions, dysmorphic facial features, and decreasing height percentiles; brain magnetic resonance imaging identified agenesis of the corpus callosum and hypoplasia of the inferior cerebellar vermis. CDH2 encodes for N-cadherin, a transmembrane protein that mediates cell-cell adhesion in multiple tissues. Immunostaining in mouse embryonic eyes confirmed N-cadherin is present in the lens stalk at the time of separation from the future cornea and in the developing lens and corneal endothelium at later stages, supporting a possible role in PA. Previous studies in animal models have noted the importance of Cdh2/cdh2 in the development of the eye, heart, brain, and skeletal structures, also consistent with the patient features presented here. Examination of CDH2 in additional patients with PA is indicated to confirm this association.
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Affiliation(s)
- Linda M Reis
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin
| | | | - Carlos Zamora
- Department of Radiology, Division of Neuroradiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Omar Abdul-Rahman
- Genetic Medicine, Munroe-Meyer Institute, University of Nebraska Medical Center, Omaha, Nebraska
| | - Jennifer M Kalish
- Division of Human Genetics, Children's Hospital of Philadelphia and Department of Pediatrics, Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Elaine H Zackai
- Division of Human Genetics, Children's Hospital of Philadelphia and Department of Pediatrics, Perelman School of Medicine, Philadelphia, Pennsylvania
| | | | - Elena V Semina
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin.,Department of Ophthalmology and Visual Sciences, Department of Cell Biology, Neurobiology and Anatomy, Children's Research Institute, Medical College of Wisconsin, Children's Hospital of Wisconsin, Milwaukee, Wisconsin
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10
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Yu W, Yang L, Li T, Zhang Y. Cadherin Signaling in Cancer: Its Functions and Role as a Therapeutic Target. Front Oncol 2019; 9:989. [PMID: 31637214 PMCID: PMC6788064 DOI: 10.3389/fonc.2019.00989] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 09/16/2019] [Indexed: 12/12/2022] Open
Abstract
Cadherin family includes lists of transmembrane glycoproteins which mediate calcium-dependent cell-cell adhesion. Cadherin-mediated adhesion regulates cell growth and differentiation throughout life. Through the establishment of the cadherin-catenin complex, cadherins provide normal cell-cell adhesion and maintain homeostatic tissue architecture. In the process of cell recognition and adhesion, cadherins act as vital participators. As results, the disruption of cadherin signaling has significant implications on tumor formation and progression. Altered cadherin expression plays a vital role in tumorigenesis, tumor progression, angiogenesis, and tumor immune response. Based on ongoing research into the role of cadherin signaling in malignant tumors, cadherins are now being considered as potential targets for cancer therapies. This review will demonstrate the mechanisms of cadherin involvement in tumor progression, and consider the clinical significance of cadherins as therapeutic targets.
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Affiliation(s)
- Weina Yu
- Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory for Tumor Immunology and Biotherapy, Zhengzhou, China
| | - Li Yang
- Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory for Tumor Immunology and Biotherapy, Zhengzhou, China
| | - Ting Li
- Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory for Tumor Immunology and Biotherapy, Zhengzhou, China
| | - Yi Zhang
- Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory for Tumor Immunology and Biotherapy, Zhengzhou, China.,School of Life Sciences, Zhengzhou University, Zhengzhou, China
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11
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Cao ZQ, Wang Z, Leng P. Aberrant N-cadherin expression in cancer. Biomed Pharmacother 2019; 118:109320. [DOI: 10.1016/j.biopha.2019.109320] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/26/2019] [Accepted: 07/31/2019] [Indexed: 12/12/2022] Open
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12
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Loh CY, Chai JY, Tang TF, Wong WF, Sethi G, Shanmugam MK, Chong PP, Looi CY. The E-Cadherin and N-Cadherin Switch in Epithelial-to-Mesenchymal Transition: Signaling, Therapeutic Implications, and Challenges. Cells 2019; 8:E1118. [PMID: 31547193 PMCID: PMC6830116 DOI: 10.3390/cells8101118] [Citation(s) in RCA: 703] [Impact Index Per Article: 140.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/16/2019] [Accepted: 09/19/2019] [Indexed: 12/17/2022] Open
Abstract
Epithelial-to-Mesenchymal Transition (EMT) has been shown to be crucial in tumorigenesis where the EMT program enhances metastasis, chemoresistance and tumor stemness. Due to its emerging role as a pivotal driver of tumorigenesis, targeting EMT is of great therapeutic interest in counteracting metastasis and chemoresistance in cancer patients. The hallmark of EMT is the upregulation of N-cadherin followed by the downregulation of E-cadherin, and this process is regulated by a complex network of signaling pathways and transcription factors. In this review, we summarized the recent understanding of the roles of E- and N-cadherins in cancer invasion and metastasis as well as the crosstalk with other signaling pathways involved in EMT. We also highlighted a few natural compounds with potential anti-EMT property and outlined the future directions in the development of novel intervention in human cancer treatments. We have reviewed 287 published papers related to this topic and identified some of the challenges faced in translating the discovery work from bench to bedside.
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Affiliation(s)
- Chin-Yap Loh
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya 47500, Malaysia.
| | - Jian Yi Chai
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya 47500, Malaysia.
| | - Ting Fang Tang
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Won Fen Wong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
| | - Muthu Kumaraswamy Shanmugam
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
| | - Pei Pei Chong
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya 47500, Malaysia.
| | - Chung Yeng Looi
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya 47500, Malaysia.
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13
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Huang H, Wright S, Zhang J, Brekken RA. Getting a grip on adhesion: Cadherin switching and collagen signaling. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:118472. [PMID: 30954569 DOI: 10.1016/j.bbamcr.2019.04.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 12/20/2018] [Accepted: 01/06/2019] [Indexed: 12/12/2022]
Abstract
Epithelial-mesenchymal transition (EMT) is a developmental biological process that is hijacked during tumor progression. Cadherin switching, which disrupts adherens junctions and alters cadherin-associated signaling pathways, is common during EMT. In many tumors, substantial extracellular matrix (ECM) is deposited. Collagen is the most abundant ECM constituent and it mediates specific signaling pathways by binding to integrins and discoidin domain receptors (DDRs). The interaction of the collagen receptors results in activation of signaling pathways that promote tumor progression including an induction of the cadherin switching. DDR inhibitors have demonstrated anticancer therapeutic efficacy preclinically by inhibiting the collagen signaling. Understanding how collagen signaling impacts cellular processes including EMT and cadherin switching is of great interest especially given the strong interest in stromal targeted therapies for desmoplastic cancers.
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Affiliation(s)
- Huocong Huang
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Steven Wright
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Junqiu Zhang
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Rolf A Brekken
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Division of Surgical Oncology, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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14
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Cofre J, Saalfeld K, Abdelhay E. Cancer as an Embryological Phenomenon and Its Developmental Pathways: A Hypothesis regarding the Contribution of the Noncanonical Wnt Pathway. ScientificWorldJournal 2019; 2019:4714781. [PMID: 30940992 PMCID: PMC6421044 DOI: 10.1155/2019/4714781] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 12/18/2018] [Accepted: 01/29/2019] [Indexed: 02/07/2023] Open
Abstract
For gastrulation to occur in human embryos, a mechanism that simultaneously regulates many different processes, such as cell differentiation, proliferation, migration, and invasion, is required to consistently and effectively create a human being during embryonic morphogenesis. The striking similarities in the processes of cancer and gastrulation have prompted speculation regarding the developmental pathways involved in their regulation. One of the fundamental requirements for the developmental pathways in gastrulation and cancer is the ability to respond to environmental stimuli, and it has been proposed that the Kaiso and noncanonical Wnt pathways participate in the mechanisms regulating these developmental pathways. In particular, these pathways might also explain the notable differences in invasive capacity between cancers of endodermal and mesodermal origins and cancers of ectodermal origin. Nevertheless, the available information indicates that cancer is an abnormal state of adult human cells in which developmental pathways are reactivated in inappropriate temporal and spatial contexts.
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Affiliation(s)
- Jaime Cofre
- Laboratório de Embriologia Molecular e Câncer, Universidade Federal de Santa Catarina, Sala 313b, 88040-900 Florianópolis, SC, Brazil
| | - Kay Saalfeld
- Laboratório de Filogenia Animal, Universidade Federal de Santa Catarina, Brazil
| | - Eliana Abdelhay
- Divisão de Laboratórios do CEMO, Instituto Nacional do Câncer, Rio de Janeiro, Brazil
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15
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ADAM10 mediates malignant pleural mesothelioma invasiveness. Oncogene 2019; 38:3521-3534. [PMID: 30651596 PMCID: PMC6756017 DOI: 10.1038/s41388-018-0669-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 11/28/2018] [Accepted: 12/14/2018] [Indexed: 11/19/2022]
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive cancer with limited therapeutic options and treatment efficiency. Even if the latency period between asbestos exposure, the main risk factor, and mesothelioma development is very long, the local invasion of mesothelioma is very rapid leading to a mean survival of one year after diagnosis. ADAM10 (A Disintegrin And Metalloprotease) sheddase targets membrane-bound substrates and its overexpression is associated with progression in several cancers. However, nothing is known about ADAM10 implication in MPM. In this study, we demonstrated higher ADAM10 expression levels in human MPM as compared to control pleural samples and in human MPM cell line. This ADAM10 overexpression was also observed in murine MPM samples. Two mouse mesothelioma cell lines were used in this study including one primary cell line obtained by repeated asbestos fibre injections. We show, in vitro, that ADAM10 targeting through shRNA and pharmacological (GI254023X) approaches reduced drastically mesothelioma cell migration and invasion, as well as for human mesothelioma cells treated with siRNA targeting ADAM10. Moreover, ADAM10 downregulation in murine mesothelioma cells significantly impairs MPM progression in vivo after intrapleural cell injection. We also demonstrate that ADAM10 sheddase downregulation decreases the production of a soluble N-cadherin fragment through membrane N-cadherin, which stimulated mesothelioma cell migration. Taken together, we demonstrate that ADAM10 is overexpressed in MPM and takes part to MPM progression through the generation of N-cadherin fragment that stimulates mesothelioma cell migration. ADAM10 inhibition is worth considering as a therapeutic perspective in mesothelioma context.
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16
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Wang H, Unternaehrer JJ. Epithelial-mesenchymal Transition and Cancer Stem Cells: At the Crossroads of Differentiation and Dedifferentiation. Dev Dyn 2018; 248:10-20. [DOI: 10.1002/dvdy.24678] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/29/2018] [Accepted: 09/27/2018] [Indexed: 12/12/2022] Open
Affiliation(s)
- Hanmin Wang
- Division of Biochemistry, Department of Basic Sciences; Loma Linda University; Loma Linda California
| | - Juli J. Unternaehrer
- Division of Biochemistry, Department of Basic Sciences; Loma Linda University; Loma Linda California
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17
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Mrozik KM, Blaschuk OW, Cheong CM, Zannettino ACW, Vandyke K. N-cadherin in cancer metastasis, its emerging role in haematological malignancies and potential as a therapeutic target in cancer. BMC Cancer 2018; 18:939. [PMID: 30285678 PMCID: PMC6167798 DOI: 10.1186/s12885-018-4845-0] [Citation(s) in RCA: 207] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 09/21/2018] [Indexed: 12/13/2022] Open
Abstract
In many types of solid tumours, the aberrant expression of the cell adhesion molecule N-cadherin is a hallmark of epithelial-to-mesenchymal transition, resulting in the acquisition of an aggressive tumour phenotype. This transition endows tumour cells with the capacity to escape from the confines of the primary tumour and metastasise to secondary sites. In this review, we will discuss how N-cadherin actively promotes the metastatic behaviour of tumour cells, including its involvement in critical signalling pathways which mediate these events. In addition, we will explore the emerging role of N-cadherin in haematological malignancies, including bone marrow homing and microenvironmental protection to anti-cancer agents. Finally, we will discuss the evidence that N-cadherin may be a viable therapeutic target to inhibit cancer metastasis and increase tumour cell sensitivity to existing anti-cancer therapies.
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Affiliation(s)
- Krzysztof Marek Mrozik
- Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia.,Cancer Theme, South Australian Health and Medical Research Institute, Adelaide, Australia
| | | | - Chee Man Cheong
- Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia.,Cancer Theme, South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Andrew Christopher William Zannettino
- Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia.,Cancer Theme, South Australian Health and Medical Research Institute, Adelaide, Australia.,Centre for Cancer Biology, University of South Australia, Adelaide, Australia
| | - Kate Vandyke
- Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia. .,Cancer Theme, South Australian Health and Medical Research Institute, Adelaide, Australia.
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18
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O'Kane GM, Leighl NB. Systemic Therapy of Lung Cancer CNS Metastases Using Molecularly Targeted Agents and Immune Checkpoint Inhibitors. CNS Drugs 2018; 32:527-542. [PMID: 29799091 DOI: 10.1007/s40263-018-0526-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Central nervous system (CNS) metastases most commonly arise from lung cancer, with the majority of patients affected during their disease course. The prognosis for patients with untreated brain metastases is poor, with surgical resection and/or radiotherapy as classic therapeutic options. However, the value of systemic therapy in the management of CNS metastases from lung cancer is growing. Novel targeted agents for the treatment of non-small cell lung cancer (NSCLC) have demonstrated activity in treating patients with CNS involvement, and are potential alternatives to radiation and surgery. These agents include anaplastic lymphoma kinase (ALK) inhibitors such as alectinib, crizotinib, ceritinib, lorlatinib, and others; epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors, including the recently developed third-generation inhibitor osimertinib, and even immune checkpoint inhibitors such as nivolumab, pembrolizumab, and atezolizumab. This review summarizes current activity of systemic agents in the management of CNS metastases from NSCLC, as well as potential mechanisms of action of these small and large molecules.
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Affiliation(s)
- Grainne M O'Kane
- Department of Medical Oncology and Hematology, Princess Margaret Cancer Centre, 7W-389, 700 University Avenue, Toronto, ON, M5G 1Z5, Canada. Grainne.O'
| | - Natasha B Leighl
- Department of Medical Oncology and Hematology, Princess Margaret Cancer Centre, 7W-389, 700 University Avenue, Toronto, ON, M5G 1Z5, Canada
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19
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Xiong Y, Liu L, Zhu S, Zhang B, Qin Y, Yao R, Zhou H, Gao DS. Precursor N-cadherin mediates glial cell line-derived neurotrophic factor-promoted human malignant glioma. Oncotarget 2018; 8:24902-24914. [PMID: 28212546 PMCID: PMC5421898 DOI: 10.18632/oncotarget.15302] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 01/19/2017] [Indexed: 12/02/2022] Open
Abstract
As the most prevalent primary brain tumor, gliomas are highly metastatic, invasive and are characteristic of high levels of glial cell-line derived neurotrophic factor (GDNF). GDNF is an important factor for invasive glioma cell growth; however, the underlying mechanism involved is unclear. In this study, we affirm a significantly higher expression of the precursor of N-cadherin (proN-cadherin) in most gliomas compared with normal brain tissues. Our findings reveal that GDNF interacts with the extracellular domain of proN-cadherin, which suggests that proN-cadherin mediates GDNF-induced glioma cell migration and invasion. We hypothesize that proN-cadherin might cause homotypic adhesion loss within neighboring cells and at the same time promote heterotypic adhesion within the extracellular matrix (ECM) through a certain mechanism. This study also demonstrates that the interaction between GDNF and proN-cadherin activates specific intracellular signaling pathways; furthermore, GDNF promoted the secretion of matrix metalloproteinase-9 (MMP-9), which degrades the ECM via proN-cadherin. To reach the future goal of developing novel therapies of glioma, this study, reveals a unique mechanism of glioma cell migration and invasion.
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Affiliation(s)
- Ye Xiong
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Liyun Liu
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Shuang Zhu
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Baole Zhang
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Yuxia Qin
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Ruiqin Yao
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Hao Zhou
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Food and Environmental, Dalian University of Technology, Panjin Campus, Panjin 124221, China
| | - Dian Shuai Gao
- Department of Neurobiology and Anatomy, Xuzhou Key Laboratory of Neurobiology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
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20
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Sehgal P, Kong X, Wu J, Sunyer R, Trepat X, Leckband D. Epidermal growth factor receptor and integrins control force-dependent vinculin recruitment to E-cadherin junctions. J Cell Sci 2018; 131:jcs206656. [PMID: 29487179 PMCID: PMC5897709 DOI: 10.1242/jcs.206656] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 02/07/2018] [Indexed: 12/30/2022] Open
Abstract
This study reports novel findings that link E-cadherin (also known as CDH1)-mediated force-transduction signaling to vinculin targeting to intercellular junctions via epidermal growth factor receptor (EGFR) and integrins. These results build on previous findings that demonstrated that mechanically perturbed E-cadherin receptors activate phosphoinositide 3-kinase and downstream integrins in an EGFR-dependent manner. Results of this study show that this EGFR-mediated kinase cascade controls the force-dependent recruitment of vinculin to stressed E-cadherin complexes - a key early signature of cadherin-based mechanotransduction. Vinculin targeting requires its phosphorylation at tyrosine 822 by Abl family kinases (hereafter Abl), but the origin of force-dependent Abl activation had not been identified. We now present evidence that integrin activation, which is downstream of EGFR signaling, controls Abl activation, thus linking E-cadherin to Abl through a mechanosensitive signaling network. These findings place EGFR and integrins at the center of a positive-feedback loop, through which force-activated E-cadherin signals regulate vinculin recruitment to cadherin complexes in response to increased intercellular tension.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Poonam Sehgal
- Department of Biochemistry, University of Illinois, Urbana-Champaign, IL 61802, USA
| | - Xinyu Kong
- Department of Biochemistry, University of Illinois, Urbana-Champaign, IL 61802, USA
| | - Jun Wu
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana-Champaign, IL 61802, USA
| | - Raimon Sunyer
- Institute for Bioengineering of Catalonia, Barcelona, Spain 08028
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina, Barcelona, Spain 08028
| | - Xavier Trepat
- Institute for Bioengineering of Catalonia, Barcelona, Spain 08028
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina, Barcelona, Spain 08028
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain 08028
| | - Deborah Leckband
- Department of Biochemistry, University of Illinois, Urbana-Champaign, IL 61802, USA
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana-Champaign, IL 61802, USA
- Department of Chemistry, University of Illinois, Urbana-Champaign, IL 61802, USA
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21
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Da C, Wu K, Yue C, Bai P, Wang R, Wang G, Zhao M, Lv Y, Hou P. N-cadherin promotes thyroid tumorigenesis through modulating major signaling pathways. Oncotarget 2018; 8:8131-8142. [PMID: 28042956 PMCID: PMC5352388 DOI: 10.18632/oncotarget.14101] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 11/18/2016] [Indexed: 12/18/2022] Open
Abstract
Epithelial-mesenchymal transition (EMT), a crucial step in disease progression, plays a key role in tumor metastasis. N-cadherin, a well-known EMT marker, acts as a major oncogene in diverse cancers, whereas its functions in thyroid cancer remains largely unclear. This study was designed to explore the biological roles and related molecular mechanism of N-cadherin in thyroid tumorigenesis. Quantitative RT-PCR (qRT-PCR) and immunohistochemistry assays were used to evaluate N-cadherin expression. A series of in vitro studies such as cell proliferation, colony formation, cell cycle, apoptosis, migration and invasion assays were performed to determine the effect of N-cadherin on malignant behavior of thyroid cancer cells. Our results showed that N-cadherin was significantly upregulated in papillary thyroid cancers (PTCs) as compared with non-cancerous thyroid tissues. N-cadherin knockdown markedly inhibited cell proliferation, colony formation, cell migration and invasion, and induced cell cycle arrest and apoptosis. On the other hand, ectopic expression of N-cadherin promoted thyroid cancer cell growth and invasiveness. Mechanically, our data demonstrated that tumor-promoting role of N-cadherin in thyroid cancer was closely related to the activities of the MAPK/Erk, the phosphatidylinositol-3-kinase (PI3K)/Akt and p16/Rb signaling pathways in addition to affecting the EMT process. Altogether, our findings suggest that N-cadherin promotes thyroid tumorigenesis by modulating the activities of major signaling pathways and EMT process, and may represent a potential therapeutic target for this cancer.
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Affiliation(s)
- Chenxing Da
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, P.R. China.,Department of Endocrinology, Shanxi Provincial Crops Hospital of Chinese People's Armed Police Force, Xi'an 710054, P.R. China
| | - Kexia Wu
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, P.R. China
| | - Chenli Yue
- Department of Endocrinology, Shanxi Provincial Crops Hospital of Chinese People's Armed Police Force, Xi'an 710054, P.R. China
| | - Peisong Bai
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, P.R. China
| | - Rong Wang
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, P.R. China
| | - Guanjie Wang
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, P.R. China
| | - Man Zhao
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, P.R. China
| | - Yanyan Lv
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, P.R. China
| | - Peng Hou
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, P.R. China.,Department of Endocrinology, Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, P.R. China
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22
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Li YR, Yang WX. Myosins as fundamental components during tumorigenesis: diverse and indispensable. Oncotarget 2018; 7:46785-46812. [PMID: 27121062 PMCID: PMC5216836 DOI: 10.18632/oncotarget.8800] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 04/10/2016] [Indexed: 12/11/2022] Open
Abstract
Myosin is a kind of actin-based motor protein. As the crucial functions of myosin during tumorigenesis have become increasingly apparent, the profile of myosin in the field of cancer research has also been growing. Eighteen distinct classes of myosins have been discovered in the past twenty years and constitute a diverse superfamily. Various myosins share similar structures. They all convert energy from ATP hydrolysis to exert mechanical stress upon interactions with microfilaments. Ongoing research is increasingly suggesting that at least seven kinds of myosins participate in the formation and development of cancer. Myosins play essential roles in cytokinesis failure, chromosomal and centrosomal amplification, multipolar spindle formation and DNA microsatellite instability. These are all prerequisites of tumor formation. Subsequently, myosins activate various processes of tumor invasion and metastasis development including cell migration, adhesion, protrusion formation, loss of cell polarity and suppression of apoptosis. In this review, we summarize the current understanding of the roles of myosins during tumorigenesis and discuss the factors and mechanisms which may regulate myosins in tumor progression. Furthermore, we put forward a completely new concept of “chromomyosin” to demonstrate the pivotal functions of myosins during karyokinesis and how this acts to optimize the functions of the members of the myosin superfamily.
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Affiliation(s)
- Yan-Ruide Li
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Wan-Xi Yang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, China
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23
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Kim CJ, Terado T, Tambe Y, Mukaisho KI, Sugihara H, Kawauchi A, Inoue H. Anti-oncogenic activities of cyclin D1b siRNA on human bladder cancer cells via induction of apoptosis and suppression of cancer cell stemness and invasiveness. Int J Oncol 2017; 52:231-240. [PMID: 29115414 DOI: 10.3892/ijo.2017.4194] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 10/30/2017] [Indexed: 11/06/2022] Open
Abstract
The human cyclin D1 gene generates two major isoforms, cyclin D1a and cyclin D1b, by alternative splicing. Although cyclin D1b mRNA is hardly expressed in normal human tissues, it is detected in approximately 60% of human bladder cancer tissues and cell lines. In the present study, to assess the therapeutic ability of cyclin D1b siRNA, we investigated the anti-oncogenic effects of cyclin D1b siRNA on human bladder cancer cell lines, SBT31A and T24, which express cyclin D1b mRNA. Knockdown of cyclin D1b by specific siRNA significantly suppressed cell proliferation, in vitro cell invasiveness and three-dimensional (3D) spheroid formation in these cell lines. Cell cycle analyses revealed that cyclin D1b siRNA inhibited G1-S transition in T24 cells. The increase in the sub-G1 fraction, morphological aberrant nuclei with nuclear fragmentation and caspase-3 activity in SBA31A cells treated with cyclin D1b siRNA showed that cyclin D1b siRNA induced apoptosis. In T24 cells, knockdown of cyclin D1b suppressed the expression of the stem cell marker CD44. Knockdown of cyclin D1b or CD44 suppressed the invasiveness under 3D spheroid culture conditions and expression of N-cadherin. Tumor growth of SBT31A cells in nude mice was significantly inhibited by cyclin D1b siRNA. Taken together, these results indicate that knockdown of cyclin D1b suppresses the malignant phenotypes of human bladder cancer cells via induction of apoptosis and suppression of cancer cell stemness and epithelial-mesenchymal transition. Applying cyclin D1b siRNA will be a novel therapy for cyclin D1b-expressing bladder cancers.
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Affiliation(s)
- Chul Jang Kim
- Department of Urology, Kohka Public Hospital, Minakuchi-cho, Kohka, Shiga 528-0074, Japan
| | - Tokio Terado
- Department of Stem Cell Biology and Regenerative Medicine, Shiga University of Medical Science, Setatsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Yukihiro Tambe
- Division of Microbiology and Infectious Diseases, Shiga University of Medical Science, Setatsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Ken-Ichi Mukaisho
- Division of Molecular and Diagnostic Pathology, Shiga University of Medical Science, Setatsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Hiroyuki Sugihara
- Division of Molecular and Diagnostic Pathology, Shiga University of Medical Science, Setatsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Akihiro Kawauchi
- Division of Urology, Shiga University of Medical Science, Setatsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Hirokazu Inoue
- Division of Microbiology and Infectious Diseases, Shiga University of Medical Science, Setatsukinowa-cho, Otsu, Shiga 520-2192, Japan
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24
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Abstract
To investigate the effect of CD300LG-γ induction on the cytotoxic activity of CIK. Eukaryotic expression plasmid hCD300LG-γ/pEGFP-C3, which can express human CD300LG-γ, was constructed and transfected into CHO cells by lipofectamine. The expression of CD300LG-γ was confirmed by immunofluorescence, RT-PCR, and Western Blot. To produce CIK cells, human peripheral blood mononuclear cells (PBMC) were isolated and induced, respectively, by cell lysates extracted from hCD300LG-γ/CHO cells, pEGFP-C3/CHO cells, and CHO cells, concurrently with the standard CIK inductive agent. The cytotoxic activity of these CIK cells against hCD300LG-γ/CHO cells, pEGFP-C3/CHO cells, CHO cells, and K562 cells was tested. The results showed that eukaryotic expression of plasmid hCD300LG-γ/pEGFP-C3 was constructed and transfected into CHO cells successfully. After being induced by cell lysates, the cytotoxicity of hCD300LG-γ/CHO-CIK was improved compared with the other CIK cells. In particular, the activity of killing pEGFP-C3/CHO and CHO cells was improved significantly. Meanwhile, the activity of hCD300LG-γ/CHO-CIK killing K562 was improved significantly compared with the other CIK cells. The results indicated that hCD300LG-γ induction can significantly improve the killing activity of CIK cells.
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Collins C, Denisin AK, Pruitt BL, Nelson WJ. Changes in E-cadherin rigidity sensing regulate cell adhesion. Proc Natl Acad Sci U S A 2017; 114:E5835-E5844. [PMID: 28674019 PMCID: PMC5530647 DOI: 10.1073/pnas.1618676114] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Mechanical cues are sensed and transduced by cell adhesion complexes to regulate diverse cell behaviors. Extracellular matrix (ECM) rigidity sensing by integrin adhesions has been well studied, but rigidity sensing by cadherins during cell adhesion is largely unexplored. Using mechanically tunable polyacrylamide (PA) gels functionalized with the extracellular domain of E-cadherin (Ecad-Fc), we showed that E-cadherin-dependent epithelial cell adhesion was sensitive to changes in PA gel elastic modulus that produced striking differences in cell morphology, actin organization, and membrane dynamics. Traction force microscopy (TFM) revealed that cells produced the greatest tractions at the cell periphery, where distinct types of actin-based membrane protrusions formed. Cells responded to substrate rigidity by reorganizing the distribution and size of high-traction-stress regions at the cell periphery. Differences in adhesion and protrusion dynamics were mediated by balancing the activities of specific signaling molecules. Cell adhesion to a 30-kPa Ecad-Fc PA gel required Cdc42- and formin-dependent filopodia formation, whereas adhesion to a 60-kPa Ecad-Fc PA gel induced Arp2/3-dependent lamellipodial protrusions. A quantitative 3D cell-cell adhesion assay and live cell imaging of cell-cell contact formation revealed that inhibition of Cdc42, formin, and Arp2/3 activities blocked the initiation, but not the maintenance of established cell-cell adhesions. These results indicate that the same signaling molecules activated by E-cadherin rigidity sensing on PA gels contribute to actin organization and membrane dynamics during cell-cell adhesion. We hypothesize that a transition in the stiffness of E-cadherin homotypic interactions regulates actin and membrane dynamics during initial stages of cell-cell adhesion.
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Affiliation(s)
- Caitlin Collins
- Department of Biology, Stanford University, Stanford, CA 94305
| | - Aleksandra K Denisin
- Department of Bioengineering, Stanford University, Stanford, CA 94305
- Department of Mechanical Engineering, Stanford University, Stanford, CA 94305
| | - Beth L Pruitt
- Department of Bioengineering, Stanford University, Stanford, CA 94305
- Department of Mechanical Engineering, Stanford University, Stanford, CA 94305
| | - W James Nelson
- Department of Biology, Stanford University, Stanford, CA 94305;
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Fan R, Mei L, Gao X, Wang Y, Xiang M, Zheng Y, Tong A, Zhang X, Han B, Zhou L, Mi P, You C, Qian Z, Wei Y, Guo G. Self-Assembled Bifunctional Peptide as Effective Drug Delivery Vector with Powerful Antitumor Activity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2017; 4:1600285. [PMID: 28435772 PMCID: PMC5396162 DOI: 10.1002/advs.201600285] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 10/22/2016] [Indexed: 02/05/2023]
Abstract
E-cadherin/catenin complex is crucial for cancer cell migration and invasion. The histidine-alanine-valine (HAV) sequence has been shown to inhibit a variety of cadherin-based functions. In this study, by fusing HAV and the classical tumor-targeting Arg-Gly-Asp (RGD) motif and Asn-Gly-Arg (NGR) motif to the apoptosis-inducing peptide sequence-AVPIAQK, a bifunctional peptide has been constructed with enhanced tumor targeting and apoptosis effects. This peptide is further processed as a nanoscale vector to encapsulate the hydrophobic drug docetaxel (DOC). Bioimaging analysis shows that peptide nanoparticles can penetrate into xenograft tumor cells with a significantly long retention in tumors and high tumor targeting specificity. In vivo, DOC/peptide NPs are substantially more effective at inhibiting tumor growth and prolonging survival compared with DOC control. Together, the findings of this study suggest that DOC/peptide NPs may have promising applications in pulmonary carcinoma therapy.
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Affiliation(s)
- Rangrang Fan
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
| | - Lan Mei
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
| | - Xiang Gao
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
| | - Yuelong Wang
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
| | - Mingli Xiang
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
| | - Yu Zheng
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
| | - Aiping Tong
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
| | - Xiaoning Zhang
- Department of Pharmacology and Pharmaceutical SciencesSchool of MedicineTsinghua UniversityCollaborative Innovation Center for BiotherapyBeijing100084P. R. China
| | - Bo Han
- Key Laboratory of Xinjiang Phytomedicine ResourcesShihezi832002P. R. China
| | - Liangxue Zhou
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
| | - Peng Mi
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
| | - Chao You
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
| | - Zhiyong Qian
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
| | - Yuquan Wei
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
| | - Gang Guo
- State Key Laboratory of Biotherapy and Cancer CenterDepartment of NeurosurgeryWest China HospitalSichuan UniversityCollaborative Innovation Center for BiotherapyChengdu610041P. R. China
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Wang YP, Guo PT, Zhu Z, Zhang H, Xu Y, Chen YZ, Liu F, Ma SP. Pleomorphic adenoma gene like-2 induces epithelial-mesenchymal transition via Wnt/β-catenin signaling pathway in human colorectal adenocarcinoma. Oncol Rep 2017; 37:1961-1970. [PMID: 28259923 PMCID: PMC5367359 DOI: 10.3892/or.2017.5485] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Accepted: 02/15/2017] [Indexed: 12/20/2022] Open
Abstract
Epithelial-mesenchymal transition (EMT) is a critical step in the acquisition of metastatic and invasive power for tumor cells. Colorectal adenocarcinoma (CRC) is a common cancer where metastasis is directly linked to patient survival. Recent studies show that pleomorphic adenoma gene like-2 (PLAGL2) could induce tumor EMT and is an independent predictive factor associated with poor prognosis in cancer. In the present study, we confirmed the role of PLAGL2 in the prognosis of CRC patients and provide molecular evidence of PLAGL2 promoted EMT in CRC cell line SW480. We found that PLAGL2 expression was upregulated in the paraffin-embedded CRC tissues compared to borderline or benign tissues. Experimental EMT induced by PLAGL2 plasmid transfection proved PLAGL2 protein overexpression could enhance the cell scratch wound-healing and Transwell ability and significantly upregulated mesenchymal marker proteins, N-cadherin and vimentin and concurrently downregulated epithelial marker of E-cadherin. Subsequently, through western blot assay, we found that PLAGL2 could activate the Wnt-signaling component β-catenin in the nuclei. More CRC cell metastasis to the lungs was observed when the PLAGL2 overexpressing SW480 cells were injected into the tail vein of rats, compared with the cell control and PLAGL2 silence group. Our findings indicated that PLAGL2 might be a very upstream key molecule regulating EMT involved in Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Yong-Peng Wang
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Peng-Tao Guo
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Zhi Zhu
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Hao Zhang
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Yan Xu
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Yu-Ze Chen
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Fang Liu
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Si-Ping Ma
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Shenyang, Liaoning, P.R. China
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28
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Xu Y, Chang R, Xu F, Gao Y, Yang F, Wang C, Xiao J, Su Z, Bi Y, Wang L, Zha X. N‐Glycosylation at Asn 402 Stabilizes N‐Cadherin and Promotes Cell–Cell Adhesion of Glioma Cells. J Cell Biochem 2017; 118:1423-1431. [DOI: 10.1002/jcb.25801] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Accepted: 11/16/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Yaolin Xu
- Central Hospital of Minhang DistrictFudan UniversityShanghaiChina
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesFudan UniversityShanghaiChina
- Key Laboratory of Glycoconjugate ResearchMinistry of HealthShanghaiChina
| | - Ruiqi Chang
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesFudan UniversityShanghaiChina
- Key Laboratory of Glycoconjugate ResearchMinistry of HealthShanghaiChina
| | - Fulin Xu
- Central Hospital of Minhang DistrictFudan UniversityShanghaiChina
| | - Yan Gao
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesFudan UniversityShanghaiChina
- Key Laboratory of Glycoconjugate ResearchMinistry of HealthShanghaiChina
| | - Fuming Yang
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesFudan UniversityShanghaiChina
- Key Laboratory of Glycoconjugate ResearchMinistry of HealthShanghaiChina
| | - Can Wang
- Shanghai Institute for Food and Drug ControlShanghaiChina
| | - Jin Xiao
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesFudan UniversityShanghaiChina
- Key Laboratory of Glycoconjugate ResearchMinistry of HealthShanghaiChina
| | - Zuopeng Su
- Central Hospital of Minhang DistrictFudan UniversityShanghaiChina
| | - Yongyan Bi
- Central Hospital of Minhang DistrictFudan UniversityShanghaiChina
| | - Liying Wang
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesFudan UniversityShanghaiChina
- Key Laboratory of Glycoconjugate ResearchMinistry of HealthShanghaiChina
- Key Laboratory of Molecular MedicineMinistry of EducationShanghaiChina
| | - Xiliang Zha
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesFudan UniversityShanghaiChina
- Key Laboratory of Glycoconjugate ResearchMinistry of HealthShanghaiChina
- Key Laboratory of Molecular MedicineMinistry of EducationShanghaiChina
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29
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Pieniazek M, Donizy P, Halon A, Leskiewicz M, Matkowski R. Prognostic significance of immunohistochemical epithelial–mesenchymal transition markers in skin melanoma patients. Biomark Med 2016; 10:975-85. [DOI: 10.2217/bmm-2016-0133] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To investigate secreted protein acidic and rich in cystein (SPARC) and neural cadherin (NCAD), which are associated with epithelial–mesenchymal transition in primary skin melanoma and nodal metastases and their prognostic impact in melanoma patients. Methods: Expression of proteins was assessed by immunochemistry in archival paraffin samples from 103 primary melanoma tumors and 16 nodal metastases. Results: Increased expression of SPARC and NCAD in primary skin melanoma was associated with decreased overall survival, adverse clinicopathological features and particularly with microsatellitosis (SPARC) and ulceration (NCAD). In univariate Cox regression analysis, both biomarkers were significantly associated with the risk of death; the multivariate Cox regression analysis identified no significance. Conclusion: The most important result of our study was that we confirmed the strict correlation between SPARC and NCAD expression and clinicopathological parameters related with melanoma progression, which is a specific clinical equivalent of the molecular mechanisms of epithelial–mesenchymal transition process and confirms its key role in the disease outcome.
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Affiliation(s)
- Malgorzata Pieniazek
- Department of Clinical Oncology, Tadeusz Koszarowski Regional Oncology Center, Opole, Katowicka 66a, Poland
| | - Piotr Donizy
- Department of Pathomorphology & Oncological Cytology, Wroclaw Medical University, Borowska 213, 50–556 Wroclaw, Poland
| | - Agnieszka Halon
- Department of Pathomorphology & Oncological Cytology, Wroclaw Medical University, Borowska 213, 50–556 Wroclaw, Poland
| | - Marek Leskiewicz
- Department of Statistics, Wroclaw University of Economics, Komandorska 118–120, 53–345 Wroclaw, Poland
| | - Rafal Matkowski
- Department of Oncology & Division of Surgical Oncology, Wroclaw Medical University, pl. Hirszfelda 12, 53–413 Wroclaw, Poland
- Lower Silesian Oncology Centre, pl. Hirszfelda 12, 53–413 Wroclaw, Poland
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30
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Bai H, Zhu Q, Surcel A, Luo T, Ren Y, Guan B, Liu Y, Wu N, Joseph NE, Wang TL, Zhang N, Pan D, Alpini G, Robinson DN, Anders RA. Yes-associated protein impacts adherens junction assembly through regulating actin cytoskeleton organization. Am J Physiol Gastrointest Liver Physiol 2016; 311:G396-411. [PMID: 27229120 PMCID: PMC5076009 DOI: 10.1152/ajpgi.00027.2016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 05/11/2016] [Indexed: 01/31/2023]
Abstract
The Hippo pathway effector Yes-associated protein (YAP) regulates liver size by promoting cell proliferation and inhibiting apoptosis. However, recent in vivo studies suggest that YAP has important cellular functions other than controlling proliferation and apoptosis. Transgenic YAP expression in mouse hepatocytes results in severe jaundice. A possible explanation for the jaundice could be defects in adherens junctions that prevent bile from leaking into the blood stream. Indeed, immunostaining of E-cadherin and electron microscopic examination of bile canaliculi of Yap transgenic livers revealed abnormal adherens junction structures. Using primary hepatocytes from Yap transgenic livers and Yap knockout livers, we found that YAP antagonizes E-cadherin-mediated cell-cell junction assembly by regulating the cellular actin architecture, including its mechanical properties (elasticity and cortical tension). Mechanistically, we found that YAP promoted contractile actin structure formation by upregulating nonmuscle myosin light chain expression and cellular ATP generation. Thus, by modulating actomyosin organization, YAP may influence many actomyosin-dependent cellular characteristics, including adhesion, membrane protrusion, spreading, morphology, and cortical tension and elasticity, which in turn determine cell differentiation and tissue morphogenesis.
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Affiliation(s)
- Haibo Bai
- 1Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland;
| | - Qingfeng Zhu
- 2Institute of Biomedical Sciences (IBS), Fudan University, Shanghai, People's Republic of China; and Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland;
| | - Alexandra Surcel
- 3Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, Maryland;
| | - Tianzhi Luo
- 3Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, Maryland;
| | - Yixin Ren
- 3Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, Maryland;
| | - Bin Guan
- 1Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland;
| | - Ying Liu
- 1Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland;
| | - Nan Wu
- 6Research, Central Texas Veterans Health Care System, Temple, Texas; Department of Medicine, Division of Gastroenterology, Texas A&M Health Science Center College of Medicine, Temple, Texas; and Baylor Scott & White Health Digestive Disease Research Center, Temple, Texas
| | - Nora Eve Joseph
- 5Department of Pathology, University of Chicago, Chicago, Illinois; and
| | - Tian -Li Wang
- 1Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland;
| | - Nailing Zhang
- 4Department of Molecular Biology and Genetics, Howard Hughes Medical Institute, Johns Hopkins School of Medicine, Baltimore, Maryland;
| | - Duojia Pan
- 4Department of Molecular Biology and Genetics, Howard Hughes Medical Institute, Johns Hopkins School of Medicine, Baltimore, Maryland;
| | - Gianfranco Alpini
- 6Research, Central Texas Veterans Health Care System, Temple, Texas; Department of Medicine, Division of Gastroenterology, Texas A&M Health Science Center College of Medicine, Temple, Texas; and Baylor Scott & White Health Digestive Disease Research Center, Temple, Texas
| | - Douglas N. Robinson
- 3Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, Maryland;
| | - Robert A. Anders
- 1Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland;
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Yang SW, Tsai CY, Pan YC, Yeh CN, Pang JHS, Takano M, Kittaka A, Juang HH, Chen TC, Chiang KC. MART-10, a newly synthesized vitamin D analog, represses metastatic potential of head and neck squamous carcinoma cells. DRUG DESIGN DEVELOPMENT AND THERAPY 2016; 10:1995-2002. [PMID: 27382252 PMCID: PMC4918737 DOI: 10.2147/dddt.s107256] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Even with multidisciplinary treatment, the prognosis and quality of life of patients diagnosed with head and neck squamous cell carcinoma (HNSCC) are still not satisfactory. Previously, 19-Nor-2α-(3-hydroxypropyl)-1α,25(OH)2D3 (MART-10), the new brand 1α,25(OH)2D3 analog, has been demonstrated to be an effective drug to inhibit HNSCC growth in vitro. Since most cancer patients die of metastasis, in this study, the antimetastatic effect of MART-10 on HNSCC was investigated. Our results reveal that both 1α,25(OH)2D3 and MART-10 effectively repressed the migration and invasion of HNSCC cells, with MART-10 being much more potent than 1α,25(OH)2D3. The antimetastatic effect of 1α,25(OH)2D3 and MART-10 was mediated by attenuation of epithelial–mesenchymal transition (EMT), which was supported by the finding that the expression of EMT-inducing transcriptional factors, Sail and Twist, was inhibited by 1α,25(OH)2D3 and MART-10. The upregulation of E-cadherin and downregulation of N-cadherin in FaDu cells induced by both drugs further confirmed the repression of EMT. In addition, 1α,25(OH)2D3 and MART-10 treatment inhibited intracellular MMP-9 expression and extracellular MMP activity in FaDu cells. Collectively, our results suggest that the less-calcemia 1α,25(OH)2D3 analog, MART-10, is a promising drug for HNSCC treatment. Further clinical studies are warranted.
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Affiliation(s)
- Shih-Wei Yang
- Department of Otolaryngology - Head and Neck Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan, Republic of China
| | - Chi-Ying Tsai
- Department of Oral and Maxillofacial Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan, Republic of China
| | - Yi-Chun Pan
- Department of General Dentistry, Chang Gung Memorial Hospital, Chang Gung University, Keelung, Taiwan, Republic of China
| | - Chun-Nan Yeh
- General Surgery Department, Chang Gung Memorial Hospital, Keelung, Taiwan, Republic of China
| | - Jong-Hwei S Pang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan, Republic of China
| | - Masashi Takano
- Faculty of Pharmaceutical Sciences, Teikyo University, Tokyo, Japan
| | - Atsushi Kittaka
- Faculty of Pharmaceutical Sciences, Teikyo University, Tokyo, Japan
| | - Horng-Heng Juang
- Department of Anatomy, College of Medicine, Chang Gung University, Taoyuan, Taiwan, Republic of China
| | - Tai C Chen
- Endocrine Core Laboratory, Boston University School of Medicine, Boston, MA, USA
| | - Kun-Chun Chiang
- General Surgery Department, Chang Gung Memorial Hospital, Keelung, Taiwan, Republic of China; Zebrafish Center, Chang Gung Memorial Hospital, Keelung, Taiwan, Republic of China
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Belmonte JM, Clendenon SG, Oliveira GM, Swat MH, Greene EV, Jeyaraman S, Glazier JA, Bacallao RL. Virtual-tissue computer simulations define the roles of cell adhesion and proliferation in the onset of kidney cystic disease. Mol Biol Cell 2016; 27:3673-3685. [PMID: 27193300 PMCID: PMC5221598 DOI: 10.1091/mbc.e16-01-0059] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 05/10/2016] [Indexed: 12/15/2022] Open
Abstract
Virtual-tissue modeling is used to model emergent cyst growth in polycystic kidney disease. Model predictions, confirmed experimentally, show that decreased cell adhesion is necessary to produce stalk cysts, and loss of contact inhibition causes saccular cysts. Virtual-tissue modeling can be used to fully explore cell- and tissue-based behaviors. In autosomal dominant polycystic kidney disease (ADPKD), cysts accumulate and progressively impair renal function. Mutations in PKD1 and PKD2 genes are causally linked to ADPKD, but how these mutations drive cell behaviors that underlie ADPKD pathogenesis is unknown. Human ADPKD cysts frequently express cadherin-8 (cad8), and expression of cad8 ectopically in vitro suffices to initiate cystogenesis. To explore cell behavioral mechanisms of cad8-driven cyst initiation, we developed a virtual-tissue computer model. Our simulations predicted that either reduced cell–cell adhesion or reduced contact inhibition of proliferation triggers cyst induction. To reproduce the full range of cyst morphologies observed in vivo, changes in both cell adhesion and proliferation are required. However, only loss-of-adhesion simulations produced morphologies matching in vitro cad8-induced cysts. Conversely, the saccular cysts described by others arise predominantly by decreased contact inhibition, that is, increased proliferation. In vitro experiments confirmed that cell–cell adhesion was reduced and proliferation was increased by ectopic cad8 expression. We conclude that adhesion loss due to cadherin type switching in ADPKD suffices to drive cystogenesis. Thus, control of cadherin type switching provides a new target for therapeutic intervention.
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Affiliation(s)
- Julio M Belmonte
- Biocomplexity Institute, Physics Department, Indiana University, Bloomington, IN 47405
| | - Sherry G Clendenon
- Biocomplexity Institute, Physics Department, Indiana University, Bloomington, IN 47405
| | - Guilherme M Oliveira
- Biocomplexity Institute, Physics Department, Indiana University, Bloomington, IN 47405
| | - Maciej H Swat
- Biocomplexity Institute, Physics Department, Indiana University, Bloomington, IN 47405
| | - Evan V Greene
- Division of Nephrology, Richard L. Roudebush VA Medical Center, and Indiana University School of Medicine, Indianapolis, IN 46202
| | - Srividhya Jeyaraman
- Biocomplexity Institute, Physics Department, Indiana University, Bloomington, IN 47405
| | - James A Glazier
- Biocomplexity Institute, Physics Department, Indiana University, Bloomington, IN 47405
| | - Robert L Bacallao
- Division of Nephrology, Richard L. Roudebush VA Medical Center, and Indiana University School of Medicine, Indianapolis, IN 46202
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1,25(OH)2D3 attenuates TGF-β1/β2-induced increased migration and invasion via inhibiting epithelial–mesenchymal transition in colon cancer cells. Biochem Biophys Res Commun 2015; 468:130-5. [DOI: 10.1016/j.bbrc.2015.10.146] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 10/27/2015] [Indexed: 12/19/2022]
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Davis-Yadley AH, Malafa MP. Vitamins in pancreatic cancer: a review of underlying mechanisms and future applications. Adv Nutr 2015; 6:774-802. [PMID: 26567201 PMCID: PMC4642423 DOI: 10.3945/an.115.009456] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Although there is increasing evidence that vitamins influence pancreatic adenocarcinoma biology and carcinogenesis, a comprehensive review is lacking. In this study, we performed a PubMed literature search to review the anticancer mechanisms and the preclinical and clinical studies that support the development of the bioactive vitamins A, C, D, E, and K in pancreatic cancer intervention. Preclinical studies have shown promising results for vitamin A in pancreatic cancer prevention, with clinical trials showing intriguing responses in combination with immunotherapy. For vitamin C, preclinical studies have shown slower tumor growth rates and/or increased survival when used alone or in combination with gemcitabine, with clinical trials with this combination revealing decreased primary tumor sizes and improved performance status. Preclinical studies with vitamin D analogues have shown potent antiproliferative effects and repression of migration and invasion of pancreatic cancer cells, with a clinical trial showing increased time to progression when calciferol was added to docetaxel. For vitamin E, preclinical studies have shown that δ-tocotrienol and γ-tocotrienol inhibited tumor cell growth and survival and augmented gemcitabine activity. Early-phase clinical trials with δ-tocotrienol are ongoing. Vitamin K demonstrates activation of apoptosis and inhibition of cellular growth in pancreatic tumor cells; however, there are no clinical studies available for further evaluation. Although preclinical and clinical studies are encouraging, randomized controlled trials with endpoints based on insights gained from mechanistic and preclinical studies and early-phase clinical trials are required to determine the efficacy of bioactive vitamin interventions in pancreatic cancer.
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Affiliation(s)
- Ashley H Davis-Yadley
- Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL; and Department of Gastrointestinal Oncology, H Lee Moffitt Cancer Center and Research Institute, Tampa, FL
| | - Mokenge P Malafa
- Department of Gastrointestinal Oncology, H Lee Moffitt Cancer Center and Research Institute, Tampa, FL
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35
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Yang X, Shi R, Zhang J. Co-expression and clinical utility of Snail and N-cadherin in papillary thyroid carcinoma. Tumour Biol 2015. [PMID: 26219900 DOI: 10.1007/s13277-015-3820-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Papillary thyroid carcinoma is one of the most common subtypes of thyroid cancer and portends a good prognosis. N-cadherin (neural cadherin) is a member of the classical cadherin family and is often overexpressed in many types of cancers. Snail, a kind of zinc finger protein, is a transcriptional repressor which has been intensively studied in mammals. We investigate the immunohistochemical expression of Snail and N-cadherin in papillary thyroid carcinoma tissues and cells and then discuss the clinical value of Snail and N-cadherin expression. Immunohistochemical technique was performed to detect Snail and N-cadherin in 60 cases of papillary thyroid carcinoma and analyzed the relationship between the expression of Snail, N-cadherin, and clinicopathological indicators. Western blot was used to investigate the constitutive and inducible expression of Snail and N-cadherin. In our study, the expression rate of Snail and N-cadherin was 85.0 % (51/60) and 78.3 % (47/60), respectively, in papillary thyroid carcinoma. The expression rate of Snail and N-cadherin in thyroid papillary carcinoma with metastatic lymph nodes was 93.3 and 86.7 %, respectively, while in papillary thyroid carcinoma tissue without lymph node metastasis, the expression rate was 60.0 and 53.3 %, respectively. The positive correlation of Snail and N-cadherin was observed (r = 0.721, p < 0.01). In addition, Western blot further identified the constitutive and inducible expression of Snail and N-cadherin in papillary thyroid carcinoma tissues and cell lines. In conclusion, Snail and N-cadherin are constitutively and inducibly expressed in papillary thyroid carcinoma and may play important roles in the development and metastasis of papillary thyroid carcinoma. Snail and N-cadherin may be used as an effective indicator.
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Affiliation(s)
- Xiangshan Yang
- Department of Pathology, Affiliated Hospital of Shandong Academy of Medical Sciences, 38# Wuyingshan Road, 250031, Jinan, Shandong, China.
| | - Ranran Shi
- Department of Pathology, Affiliated Hospital of Shandong Academy of Medical Sciences, 38# Wuyingshan Road, 250031, Jinan, Shandong, China
| | - Jing Zhang
- Department of Pathology, Affiliated Hospital of Shandong Academy of Medical Sciences, 38# Wuyingshan Road, 250031, Jinan, Shandong, China
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Moy I, Todorović V, Dubash AD, Coon JS, Parker JB, Buranapramest M, Huang CC, Zhao H, Green KJ, Bulun SE. Estrogen-dependent sushi domain containing 3 regulates cytoskeleton organization and migration in breast cancer cells. Oncogene 2015; 34:323-33. [PMID: 24413080 PMCID: PMC4096609 DOI: 10.1038/onc.2013.553] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 10/30/2013] [Accepted: 11/11/2013] [Indexed: 12/20/2022]
Abstract
Aromatase inhibitors (AIs) are the standard endocrine therapy for postmenopausal breast cancer; however, currently used biomarkers, such as, estrogen receptor-alpha/progesterone receptor (ERα/PR), predict only slightly more than half of the potential responders to AI treatment. To identify novel markers of AI responsiveness, a genome-wide microarray analysis was performed using primary breast tumor samples from 50 postmenopausal women who later developed metastatic breast cancer. Sushi domain containing 3 (SUSD3) is a significantly differentially expressed gene, with 3.38-fold higher mRNA levels in AI-responsive breast tumors vs non-responders (P<0.001). SUSD3 was highly expressed in ERα-positive breast tumors and treatment with estradiol increased SUSD3 expression in ERα-positive breast cancer cells. Treatment with an antiestrogen or ERα knockdown abolished basal and estradiol-dependent SUSD3 expression. Recruitment of ERα upstream of the transcription start site of SUSD3 was demonstrated by chromatin immunoprecipitation-PCR. Flow cytometric analysis of SUSD3-knockdown cells revealed blunted estradiol effects on progression into S and M phases. SUSD3 was localized to the plasma membrane of breast cancer cells. SUSD3 knockdown decreased the appearance of actin-rich protrusions, stress fibers and large basal focal adhesions, while increasing the presence of cortical actin concomitant with a decrease in Rho and focal adhesion kinase activity. SUSD3-deficient cells demonstrated diminished cell spreading, cell-cell adhesion and motility. In conclusion, SUSD3 is a novel promoter of estrogen-dependent cell proliferation and regulator of cell-cell and cell-substrate interactions and migration in breast cancer. It may serve as a novel predictor of response to endocrine therapy and potential therapeutic target.
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Affiliation(s)
- I Moy
- Division of Reproductive Biology, Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - V Todorović
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - A D Dubash
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - J S Coon
- Division of Reproductive Biology, Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - J B Parker
- Division of Reproductive Biology, Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - M Buranapramest
- Division of Reproductive Biology, Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - C C Huang
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - H Zhao
- Division of Reproductive Biology, Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - K J Green
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - S E Bulun
- Division of Reproductive Biology, Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Abstract
E-cadherin belongs to the classic cadherin subfamily of calcium-dependent cell adhesion molecules and is crucial for the formation and function of epithelial adherens junctions. In this study, we demonstrate that Vangl2, a vertebrate regulator of planar cell polarity (PCP), controls E-cadherin in epithelial cells. E-cadherin co-immunoprecipitates with Vangl2 from embryonic kidney extracts, and this association is also observed in transfected fibroblasts. Vangl2 enhances the internalization of E-cadherin when overexpressed. Conversely, the quantitative ratio of E-cadherin exposed to the cell surface is increased in cultured renal epithelial cells derived from Vangl2(Lpt/+) mutant mice. Interestingly, Vangl2 is also internalized through protein traffic involving Rab5- and Dynamin-dependent endocytosis. Taken together with recent reports regarding the transport of Frizzled3, MMP14 and nephrin, these results suggest that one of the molecular functions of Vangl2 is to enhance the internalization of specific plasma membrane proteins with broad selectivity. This function may be involved in the control of intercellular PCP signalling or in the PCP-related rearrangement of cell adhesions.
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Chiang KC, Yeh CN, Hsu JT, Jan YY, Chen LW, Kuo SF, Takano M, Kittaka A, Chen TC, Chen WT, Pang JHS, Yeh TS, Juang HH. The vitamin D analog, MART-10, represses metastasis potential via downregulation of epithelial-mesenchymal transition in pancreatic cancer cells. Cancer Lett 2014; 354:235-44. [PMID: 25149065 DOI: 10.1016/j.canlet.2014.08.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 08/13/2014] [Accepted: 08/13/2014] [Indexed: 12/31/2022]
Abstract
Pancreatic cancer (PDA) is a devastating disease and there is no effective treatment available at present. To develop new regiments against PDA is urgently needed. Previously we have shown that vitamin D analog, MART-10 (19-nor-2α-(3-hydroxypropyl)-1α,25(OH)2D3), exerted potent antiproliferative effect on PDA in vitro and in vivo without causing hypercalcemia. Since metastasis is the major cause of PDA-related death, we therefore investigate the anti-metastasis effect of MART-10 on PDA. Our results showed that both 1α,25(OH)2D3 and MART-10 repressed migration and invasion of BxPC-3 and PANC cells with MART-10 much more potent than 1α,25(OH)2D3. 1α,25(OH)2D3 and MART-10 inhibited epithelial-mesenchymal transition (EMT) in pancreatic cancer cells through downregulation of Snail, Slug, and Vimentin expression in BxPC-3 and PANC cells. MART-10 further blocked cadherin switch (from E-cadherin to N-cadherin) in BxPC-3 cells. The F-actin synthesis in the cytoplasm of BxPC-3 cells was also repressed by 1α,25(OH)2D3 and MART-10 as determined by immunofluorescence stain. Both 1α,25(OH)2D3 and MART-10 decreased MMP-2 and -9 secretion in BxPC-3 cells as determined by western blot and zymography. Collectively, MART-10 should be deemed as a promising regimen against PDA.
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Affiliation(s)
- Kun-Chun Chiang
- General Surgery Department, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chun-Nan Yeh
- General Surgery Department, Chang Gung Memorial Hospital, Kwei-Shan, Taoyuan, Taiwan
| | - Jun-Te Hsu
- General Surgery Department, Chang Gung Memorial Hospital, Kwei-Shan, Taoyuan, Taiwan
| | - Yi-Yin Jan
- General Surgery Department, Chang Gung Memorial Hospital, Kwei-Shan, Taoyuan, Taiwan
| | - Li-Wei Chen
- Department of Gastroenterology, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Sheng-Fong Kuo
- Department of Endocrinology and Metabolism, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Masashi Takano
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo, Japan
| | - Atsushi Kittaka
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo, Japan
| | - Tai C Chen
- Boston University School of Medicine, Boston, MA 02118, USA
| | - Wen-Tsung Chen
- National Kaohsiung University of Hospitality and Tourism, Hsiao-Kang, Kaohsiung, Taiwan
| | - Jong-Hwei S Pang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan, Taiwan
| | - Ta-Sen Yeh
- General Surgery Department, Chang Gung Memorial Hospital, Kwei-Shan, Taoyuan, Taiwan
| | - Horng-Heng Juang
- Department of Anatomy, College of Medicine, Chang Gung University, Kwei-Shan Taoyuan, 333, Taiwan.
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Walker A, Frei R, Lawson KR. The cytoplasmic domain of N-cadherin modulates MMP‑9 induction in oral squamous carcinoma cells. Int J Oncol 2014; 45:1699-706. [PMID: 25175499 PMCID: PMC4151807 DOI: 10.3892/ijo.2014.2549] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 06/20/2014] [Indexed: 01/18/2023] Open
Abstract
Oral squamous carcinoma is the sixth most common cancer worldwide, and one of the most common cancers in developing countries. Regional and distant metastases comprise the majority of cases at initial diagnosis and correlate with poor patient outcomes. Oral epithelia is one of many tissue types to exhibit a cadherin switch during tumor progression, in which endogenous cell adhesion proteins, such as E-cadherin, give way to those of mesenchymal origin. The mesenchymal cell adhesion protein N-cadherin is found at the invading front of oral squamous carcinomas and has been strongly correlated with poor patient prognosis. The goal of the present study was to elucidate the mechanism by which N-cadherin may increase extracellular matrix-associated proteolytic activity to facilitate invasiveness in oral tumor development. The overexpression of N-cadherin in two oral squamous carcinoma cell lines increased motility, invasive capacity and synthesis of matrix metalloproteinase-9 (MMP-9) in a manner that was independent of E-cadherin downregulation. The use of EN and NE chimeric cadherin molecules with reciprocally substituted cytoplasmic domains revealed that optimal induction of MMP-9 synthesis required the cytoplasmic region, but not the extracellular region, of N-cadherin. Utilizing an N-cadherin mutant with impaired p120 binding ability, we found that such mutation resulted in a 4-fold decrease in motility compared to wild-type N-cadherin, but did not affect either MMP-9 expression or motility-normalized invasion. Overexpression of wild-type N-cadherin produced a 27-fold increase in the transcriptional activity of β-catenin, concomitant with increases in MMP-9 transcription. These results suggest that N-cadherin may promote motility and invasiveness through distinct mechanisms, and that β-catenin may be an integral mediator of N-cadherin-dependent invasive signaling in oral epithelia.
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Affiliation(s)
- Andrew Walker
- Department of Biochemistry, Midwestern University, Glendale, AZ, USA
| | - Rhett Frei
- Department of Biochemistry, Midwestern University, Glendale, AZ, USA
| | - Kathryn R Lawson
- Department of Biochemistry, Midwestern University, Glendale, AZ, USA
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Roy P, Bandyopadhyay A. Spatio-temporally restricted expression of cell adhesion molecules during chicken embryonic development. PLoS One 2014; 9:e96837. [PMID: 24806091 PMCID: PMC4013082 DOI: 10.1371/journal.pone.0096837] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 04/10/2014] [Indexed: 11/23/2022] Open
Abstract
Differential cell adhesive properties are known to regulate important developmental events like cell sorting and cell migration. Cadherins and protocadherins are known to mediate these cellular properties. Though a large number of such molecules have been predicted, their characterization in terms of interactive properties and cellular roles is far from being comprehensive. To narrow down the tissue context and collect correlative evidence for tissue specific roles of these molecules, we have carried out whole-mount in situ hybridization based RNA expression study for seven cadherins and four protocadherins. In developing chicken embryos (HH stages 18, 22, 26 and 28) cadherins and protocadherins are expressed in tissue restricted manner. This expression study elucidates precise expression domains of cell adhesion molecules in the context of developing embryos. These expression domains provide spatio-temporal context in which the function of these genes can be further explored.
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Affiliation(s)
- Priti Roy
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, U.P., India
- * E-mail: (PR); (AB)
| | - Amitabha Bandyopadhyay
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, U.P., India
- * E-mail: (PR); (AB)
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41
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Cellular contractility changes are sufficient to drive epithelial scattering. Exp Cell Res 2014; 326:187-200. [PMID: 24780819 DOI: 10.1016/j.yexcr.2014.04.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 04/10/2014] [Accepted: 04/14/2014] [Indexed: 11/20/2022]
Abstract
Epithelial scattering occurs when cells disassemble cell-cell junctions, allowing individual epithelial cells to act in a solitary manner. Epithelial scattering occurs frequently in development, where it accompanies epithelial-mesenchymal transitions and is required for individual cells to migrate and invade. While migration and invasion have received extensive research focus, how cell-cell junctions are detached remains poorly understood. An open debate has been whether disruption of cell-cell interactions occurs by remodeling of cell-cell adhesions, increased traction forces through cell substrate adhesions, or some combination of both processes. Here we seek to examine how changes in adhesion and contractility are coupled to drive detachment of individual epithelial cells during hepatocyte growth factor (HGF)/scatter factor-induced EMT. We find that HGF signaling does not alter the strength of cell-cell adhesion between cells in suspension, suggesting that changes in cell-cell adhesion strength might not accompany epithelial scattering. Instead, cell-substrate adhesion seems to play a bigger role, as cell-substrate adhesions are stronger in cells treated with HGF and since rapid scattering in cells treated with HGF and TGFβ is associated with a dramatic increase in focal adhesions. Increases in the pliability of the substratum, reducing cells ability to generate traction on the substrate, alter cells׳ ability to scatter. Further consistent with changes in substrate adhesion being required for cell-cell detachment during EMT, scattering is impaired in cells expressing both active and inactive RhoA mutants, though in different ways. In addition to its roles in driving assembly of both stress fibers and focal adhesions, RhoA also generates myosin-based contractility in cells. We therefore sought to examine how RhoA-dependent contractility contributes to cell-cell detachment. Inhibition of Rho kinase or myosin II induces the same effect on cells, namely an inhibition of cell scattering following HGF treatment. Interestingly, restoration of myosin-based contractility in blebbistatin-treated cells results in cell scattering, including global actin rearrangements. Scattering is reminiscent of HGF-induced epithelial scattering without a concomitant increase in cell migration or decrease in adhesion strength. This scattering is dependent on RhoA, as blebbistatin-induced scattering is reduced in cells expressing dominant-negative RhoA mutants. This suggests that induction of myosin-based cellular contractility may be sufficient for cell-cell detachment during epithelial scattering.
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Sharma M, Tiwari A, Sharma S, Bansal R, Gupta V, Gupta A, Luthra-Guptasarma M. Pathological vitreous causes cell line-derived (but not donor-derived) retinal pigment epithelial cells to display proliferative vitreoretinopathy-like features in culture. Clin Exp Ophthalmol 2014; 42:745-60. [PMID: 24612444 DOI: 10.1111/ceo.12307] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Accepted: 01/18/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND It is well understood that epithelial mesenchymal transformation occurs when retinal pigment epithelial cells, sourced from either a cell line or cadaver eye, are cultured in the presence of cadaver-derived vitreous. We sought to study the changes in retinal pigment epithelial cells when cell line-derived retinal pigment epithelial cells are cultured in the presence of pathological vitreous. DESIGN Prospective study. SAMPLES 42 patients with rhegmatogenous retinal detachments. METHODS D407 retinal pigment epithelial cells were cultured in the presence of cadaver-derived vitreous or vitreous/subretinal fluid derived from patients undergoing retinal reattachment surgeries. Besides the changes in phenotypic characteristics, the viability, proliferation, migration, mesenchymal marker expression and changes in the extracellular matrix components were also evaluated. MAIN OUTCOME MEASURES Fibrotic phenotype in cell culture. RESULTS Our study clearly demonstrates that cell line-derived retinal pigment epithelial cells (unlike donor-derived retinal pigment epithelial cells) cultured in the presence of patient-derived vitreous/subretinal fluid, exhibit characteristic features of proliferative vitreoretinopathy. CONCLUSIONS We propose that it is the synergistic effect of the combined use of (i) pathological vitreous, rather than cadaver-derived vitreous (since rhegmatogenous retinal detachment-derived pathological vitreous and subretinal fluid contain exaggerated amounts of growth factors, which could predispose to proliferative vitreoretinopathy development) and (ii) cells from an immortal cell culture (cell line), rather than from primary cell cultures (since cells subjected to continuous serial passaging acquire some mesenchymal characteristics), which together result in not only a unique phenotype, but also prime these cells towards display of features associated with proliferative vitreoretinopathy.
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Affiliation(s)
- Maryada Sharma
- Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Gheldof A, Berx G. Cadherins and epithelial-to-mesenchymal transition. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2013; 116:317-36. [PMID: 23481201 DOI: 10.1016/b978-0-12-394311-8.00014-5] [Citation(s) in RCA: 248] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Epithelial-mesenchymal transition (EMT) is a process whereby epithelial cells are transcriptionally reprogrammed, resulting in decreased adhesion and enhanced migration or invasion. EMT occurs during different stages of embryonic development, including gastrulation and neural crest cell delamination, and is induced by a panel of specific transcription factors. These factors comprise, among others, members of the Snail, ZEB, and Twist families, and are all known to modulate cadherin expression and, in particular, E-cadherin. By regulating expression of the cadherin family of proteins, EMT-inducing transcription factors dynamically modulate cell adhesion, allowing many developmental processes to take place. However, during cancer progression EMT can be utilized by cancer cells to contribute to malignancy. This is also reflected at the level of the cadherins, where the cadherin switch between E- and N-cadherins is a classical example seen in cancer-related EMT. In this chapter, we give a detailed overview of the entanglement between EMT-inducing transcription factors and cadherin modulation during embryonic development and cancer progression. We describe how classical cadherins such as E- and N-cadherins are regulated during EMT, as well as cadherin 7, -6B, and -11.
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Affiliation(s)
- Alexander Gheldof
- Department for Molecular Biomedical Research, Unit of Molecular and Cellular Oncology, VIB, Ghent, Belgium
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Geletu M, Arulanandam R, Chevalier S, Saez B, Larue L, Feracci H, Raptis L. Classical cadherins control survival through the gp130/Stat3 axis. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1833:1947-59. [DOI: 10.1016/j.bbamcr.2013.03.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 03/14/2013] [Accepted: 03/18/2013] [Indexed: 01/02/2023]
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Chaklader M, Pan A, Law A, Chattopadhayay S, Chatterjee R, Law S. Differential remodeling of cadherins and intermediate cytoskeletal filaments influence microenvironment of solid and ascitic sarcoma. Mol Cell Biochem 2013; 382:293-306. [PMID: 23861106 DOI: 10.1007/s11010-013-1750-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 07/03/2013] [Indexed: 12/21/2022]
Abstract
Different forms of sarcoma (solid or ascitic) often pose a critical medical situation for pediatric or adolescent group of patients. To date, predisposed genetic anomalies and related changes in protein expression are thought to be responsible for sarcoma development. However, in spite of genetic abnormality, role of tumor microenvironment is also indispensable for the evolving neoplasm. In our present study, we characterized the deferentially remodeled microenvironment in solid and ascitic tumors by sequential immunohistochemistry and flowcytometric analysis of E-cdaherin, N-cadherin, vimentin, and cytokeratin along with angiogenesis and metastasis. In addition, we considered flowcytometric apoptosis and CD133 positive cancer stem cell analysis. Comparative hemogram was also considered as a part. Our investigation revealed that both types of tumor promoted neovascularization over time with sign of local inflammation. Invasion of neighboring skeletal muscle by solid sarcoma was more frequent than its ascitic counterpart. In contrary, rapid and earlier cadherin switching (E-cadherin to N-cadherin) in ascitic sarcoma made them more aggressive than that of solid sarcoma and helped to early metastasize distant tissue like liver through the hematogenous route. Differential cadherin switching and infidelity of cytokeratin expression in Vimentin positive sarcoma also influenced the behavior of ascitic CD133+ cancer initiating cell pool with respect to CD133+ cells housed in solid sarcoma. Therefore our study concludes that differential cadherin switching program and infidelity of intermediate filaments in part, sharply discriminate the severity and metastatic potentiality of either type of sarcoma accompanying with CD133+ cellular repertoire. Besides, tumor phenotype-based dichotomous cadherin switching program could be exploited as a future drug target to manage decompensated malignant ascitic and solid sarcoma.
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Affiliation(s)
- Malay Chaklader
- Stem Cell Research and Application Unit, Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, 108, C. R. Avenue, Kolkata, 700073, West Bengal, India
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Zeng Y, Fu X, Zhou G, Yue M, Zhou Y, Zhu S. Expression and distribution of cell adhesion-related proteins in bovine parthenogenetic embryos: The effects of oocyte vitrification. Theriogenology 2013; 80:34-40. [DOI: 10.1016/j.theriogenology.2013.03.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 03/01/2013] [Accepted: 03/17/2013] [Indexed: 12/01/2022]
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47
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Celebre A, Wu MY, Danielson B, Cohen S, Munoz D, Das S, Karamchandani J. Anaplastic meningioma with extensive single-cell infiltration: a potential role for epithelial-mesenchymal transformation in the progression of a meningothelial tumour? Histopathology 2013; 62:1111-4. [DOI: 10.1111/his.12121] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Angela Celebre
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Toronto; ON; Canada
| | - Megan Y Wu
- Brain Tumour Research Centre; Hospital for Sick Children; Toronto; ON; Canada
| | - Brett Danielson
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Toronto; ON; Canada
| | - Sandra Cohen
- Department of Pathology and Laboratory Medicine; St Michael's Hospital; Toronto; ON; Canada
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Barcellos KSA, Bigarella CL, Wagner MV, Vieira KP, Lazarini M, Langford PR, Machado-Neto JA, Call SG, Staley DM, Chung JY, Hansen MD, Saad STO. ARHGAP21 protein, a new partner of α-tubulin involved in cell-cell adhesion formation and essential for epithelial-mesenchymal transition. J Biol Chem 2012; 288:2179-89. [PMID: 23235160 DOI: 10.1074/jbc.m112.432716] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cell-cell adhesions and the cytoskeletons play important and coordinated roles in cell biology, including cell differentiation, development, and migration. Adhesion and cytoskeletal dynamics are regulated by Rho-GTPases. ARHGAP21 is a negative regulator of Rho-GTPases, particularly Cdc42. Here we assess the function of ARHGAP21 in cell-cell adhesion, cell migration, and scattering. We find that ARHGAP21 is localized in the nucleus, cytoplasm, or perinuclear region but is transiently redistributed to cell-cell junctions 4 h after initiation of cell-cell adhesion. ARHGAP21 interacts with Cdc42, and decreased Cdc42 activity coincides with the appearance of ARHGAP21 at the cell-cell junctions. Cells lacking ARHGAP21 expression show weaker cell-cell adhesions, increased cell migration, and a diminished ability to undergo hepatocyte growth factor-induced epithelial-mesenchymal transition (EMT). In addition, ARHGAP21 interacts with α-tubulin, and it is essential for α-tubulin acetylation in EMT. Our findings indicate that ARHGAP21 is a Rho-GAP involved in cell-cell junction remodeling and that ARHGAP21 affects migration and EMT through α-tubulin interaction and acetylation.
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Affiliation(s)
- Karin S A Barcellos
- Hematology and Hemotherapy Center, University of Campinas/Hemocentro-Unicamp, Instituto Nacional de Ciência e Tecnologia do Sangue, Campinas, São Paulo, 13083-970, Brazil
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The desmosomal armadillo protein plakoglobin regulates prostate cancer cell adhesion and motility through vitronectin-dependent Src signaling. PLoS One 2012; 7:e42132. [PMID: 22860065 PMCID: PMC3408445 DOI: 10.1371/journal.pone.0042132] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Accepted: 07/03/2012] [Indexed: 02/02/2023] Open
Abstract
Plakoglobin (PG) is an armadillo protein that associates with both classic and desmosomal cadherins, but is primarily concentrated in mature desmosomes in epithelia. While reduced levels of PG have been reported in localized and hormone refractory prostate tumors, the functional significance of these changes is unknown. Here we report that PG expression is reduced in samples of a prostate tumor tissue array and inversely correlated with advancing tumor potential in 7 PCa cell lines. Ectopically expressed PG enhanced intercellular adhesive strength, and attenuated the motility and invasion of aggressive cell lines, whereas silencing PG in less tumorigenic cells had the opposite effect. PG also regulated cell-substrate adhesion and motility through extracellular matrix (ECM)-dependent inhibition of Src kinase, suggesting that PG’s effects were not due solely to increased intercellular adhesion. PG silencing resulted in elevated levels of the ECM protein vitronectin (VN), and exposing PG-expressing cells to VN induced Src activity. Furthermore, increased VN levels and Src activation correlated with diminished expression of PG in patient tissues. Thus, PG may inhibit Src by keeping VN low. Our results suggest that loss of intercellular adhesion due to reduced PG expression might be exacerbated by activation of Src through a PG-dependent mechanism. Furthermore, PG down-regulation during PCa progression could contribute to the known VN-dependent promotion of PCa invasion and metastasis, demonstrating a novel functional interaction between desmosomal cell-cell adhesion and cell-substrate adhesion signaling axes in prostate cancer.
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MiR-520h-mediated FOXC2 regulation is critical for inhibition of lung cancer progression by resveratrol. Oncogene 2012; 32:431-43. [PMID: 22410781 DOI: 10.1038/onc.2012.74] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Resveratrol, a phytochemical found in various plants and Chinese herbs, is associated with multiple tumor-suppressing activities, has been tested in clinical trials. However, the molecular mechanisms involved in resveratrol-mediated tumor suppressing activities are not yet completely defined. Here, we showed that treatment with resveratrol inhibited cell mobility through induction of the mesenchymal-epithelial transition (MET) in lung cancer cells. We also found that downregulation of FOXC2 (forkhead box C2) is critical for resveratrol-mediated suppression of tumor metastasis in an in vitro and in vivo models. We also identified a signal cascade, namely, resveratrol-∣miRNA-520h-∣PP2A/C-∣Akt → NF-κB → FOXC2, in which resveratrol inhibited the expression of FOXC2 through regulation of miRNA-520h-mediated signal cascade. This study identified a new miRNA-520h-related signal cascade involved in resveratrol-mediated tumor suppression activity and provide the clinical significances of miR-520h, PP2A/C and FOXC2 in lung cancer patients. Our results indicated a functional link between resveratrol-mediated miRNA-520h regulation and tumor suppressing ability, and provide a new insight into the role of resveratrol-induced molecular and epigenetic regulations in tumor suppression.
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