Transcriptome-Wide Analysis of CXCR5 Deficient Retinal Pigment
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Defective Lymphocyte Chemotaxis in Я-Arrestin2- and GRK6-Deficient Mice
Defective lymphocyte chemotaxis in -arrestin2- and GRK6-deficient mice Alan M. Fong*, Richard T. Premont*, Ricardo M. Richardson*, Yen-Rei A. Yu†, Robert J. Lefkowitz*‡§, and Dhavalkumar D. Patel*†¶ Departments of *Medicine, ‡Biochemistry, and †Immunology, and §Howard Hughes Medical Institute, Duke University Medical Center, Durham, NC 27710 Contributed by Robert J. Lefkowitz, April 4, 2002 Lymphocyte chemotaxis is a complex process by which cells move kinase, extracellular receptor kinase, and c-jun terminal kinase within tissues and across barriers such as vascular endothelium and activation (9–12), they might also act as positive regulators of is usually stimulated by chemokines such as stromal cell-derived chemotaxis. To evaluate the role of the GRK-arrestin pathway factor-1 (CXCL12) acting via G protein-coupled receptors. Because in chemotaxis, we studied the chemotactic responses of lym- members of this receptor family are regulated (‘‘desensitized’’) by phocytes from -arrestin- and GRK-deficient mice toward G protein-coupled receptor kinase (GRK)-mediated receptor phos- gradients of stromal cell-derived factor 1 (CXCL12), a well  phorylation and -arrestin binding, we examined signaling and characterized chemokine whose receptor is CXCR4, a core- chemotactic responses in splenocytes derived from knockout mice ceptor for HIV. deficient in various -arrestins and GRKs, with the expectation that these responses might be enhanced. Knockouts of -arrestin2, Materials and Methods GRK5, and GRK6 were examined because all three proteins are :expressed at high levels in purified mouse CD3؉ T and B220؉ B Mice. The following mouse strains were used in this study splenocytes. CXCL12 stimulation of membrane GTPase activity was -arrestin2-deficient (back-crossed for six generations onto the unaffected in splenocytes derived from GRK5-deficient mice but C57͞BL6 background; ref. -
Membrane Tension Buffering by Caveolae: a Role in Cancer?
Cancer and Metastasis Reviews (2020) 39:505–517 https://doi.org/10.1007/s10555-020-09899-2 Membrane tension buffering by caveolae: a role in cancer? Vibha Singh1 & Christophe Lamaze1 Published online: 30 May 2020 # Springer Science+Business Media, LLC, part of Springer Nature 2020 Abstract Caveolae are bulb-like invaginations made up of two essential structural proteins, caveolin-1 and cavins, which are abundantly present at the plasma membrane of vertebrate cells. Since their discovery more than 60 years ago, the function of caveolae has been mired in controversy. The last decade has seen the characterization of new caveolae components and regulators together with the discovery of additional cellular functions that have shed new light on these enigmatic structures. Early on, caveolae and/ or caveolin-1 have been involved in the regulation of several parameters associated with cancer progression such as cell migration, metastasis, angiogenesis, or cell growth. These studies have revealed that caveolin-1 and more recently cavin-1 have a dual role with either a negative or a positive effect on most of these parameters. The recent discovery that caveolae can act as mechanosensors has sparked an array of new studies that have addressed the mechanobiology of caveolae in various cellular functions. This review summarizes the current knowledge on caveolae and their role in cancer development through their activity in membrane tension buffering. We propose that the role of caveolae in cancer has to be revisited through their response to the mechanical forces encountered by cancer cells during tumor mass development. Keywords Caveolae . Cancer . Mechanosensing . Mechanotransdcution . Membrane tension . -
Combined Integrin Phosphoproteomic Analyses and Small Interfering RNA–Based Functional Screening Identify Key Regulators for Cancer Cell Adhesion and Migration
Published OnlineFirst April 7, 2009; DOI: 10.1158/0008-5472.CAN-08-2515 Published Online First on April 7, 2009 as 10.1158/0008-5472.CAN-08-2515 Research Article Combined Integrin Phosphoproteomic Analyses and Small Interfering RNA–Based Functional Screening Identify Key Regulators for Cancer Cell Adhesion and Migration Yanling Chen,1 Bingwen Lu,2 Qingkai Yang,1 Colleen Fearns,3 John R. Yates III,2 and Jiing-Dwan Lee1 Departments of 1Immunology, 2Chemical Physiology, and 3Chemistry, The Scripps Research Institute, La Jolla, California Abstract cytoskeletal components (2, 7) and regulation of cell survival, Integrins interact with extracellular matrix (ECM) and deliver proliferation, differentiation, cell cycle, and migration (8, 9). Understanding the mechanism by which integrins modulate these intracellular signaling for cell proliferation, survival, and motility. During tumor metastasis, integrin-mediated cell cellular activities is of significant biological importance. adhesion to and migration on the ECM proteins are required The most common cancers in human include breast cancer, for cancer cell survival and adaptation to the new microen- prostate cancer, lung cancer, colon cancer, and ovarian cancer (10, 11), and their metastasis is the leading cause of mortality in vironment. Using stable isotope labeling by amino acids in cell cancer patients, causing 90% of deaths from solid tumors (11, 12). culture–mass spectrometry, we profiled the phosphoproteo- During the process of metastasis, tumor cells leave the primary mic changes induced by the interactions of cell integrins with site, travel via blood and/or lymphatic circulatory systems, attach type I collagen, the most common ECM substratum. Integrin- to the substratum of ECM at a distant site, and establish a ECM interactions modulate phosphorylation of 517 serine, secondary tumor, accompanied by angiogenesis of the newly threonine, or tyrosine residues in 513 peptides, corresponding formed neoplasm (12). -
Investigating the Role of Cdk11in Animal Cytokinesis
Investigating the Role of CDK11 in Animal Cytokinesis by Thomas Clifford Panagiotou A thesis submitted in conformity with the requirements for the degree of Master of Science Department of Molecular Genetics University of Toronto © Copyright by Thomas Clifford Panagiotou (2020) Investigating the Role of CDK11 in Animal Cytokinesis Thomas Clifford Panagiotou Master of Science Department of Molecular Genetics University of Toronto 2020 Abstract Finely tuned spatio-temporal regulation of cell division is required for genome stability. Cytokinesis constitutes the final stages of cell division, from chromosome segregation to the physical separation of cells, abscission. Abscission is tightly regulated to ensure it occurs after earlier cytokinetic events, like the maturation of the stem body, the regulatory platform for abscission. Active Aurora B kinase enforces the abscission checkpoint, which blocks abscission until chromosomes have been cleared from the cytokinetic machinery. Currently, it is unclear how this checkpoint is overcome. Here, I demonstrate that the cyclin-dependent kinase CDK11 is required for cytokinesis. Both inhibition and depletion of CDK11 block abscission. Furthermore, the mitosis-specific CDK11p58 kinase localizes to the stem body, where its kinase activity rescues the defects of CDK11 depletion and inhibition. These results suggest a model whereby CDK11p58 antagonizes Aurora B kinase to overcome the abscission checkpoint to allow for successful completion of cytokinesis. ii Acknowledgments I am very grateful for the support of my family and friends throughout my studies. I would also like to express my deep gratitude to Wilde Lab members, both past and present, for their advice and collaboration. In particular, I am very grateful to Matthew Renshaw, whose work comprises part of this thesis. -
Biological Pathways and in Vivo Antitumor Activity Induced by Atiprimod in Myeloma
Leukemia (2007) 21, 2519–2526 & 2007 Nature Publishing Group All rights reserved 0887-6924/07 $30.00 www.nature.com/leu ORIGINAL ARTICLE Biological pathways and in vivo antitumor activity induced by Atiprimod in myeloma P Neri1,2,3, P Tassone1,2,3, M Shammas1, H Yasui2, E Schipani4, RB Batchu1, S Blotta1,2,3, R Prabhala1, L Catley2, M Hamasaki2, T Hideshima2, D Chauhan2, GS Jacob5, D Picker5, S Venuta3, KC Anderson2 and NC Munshi1,2 1Jerome Lipper Multiple Myeloma Center, Department of Adult Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA; 2Boston VA Healthcare System, Department of Medicine, Harvard Medical School, MA, USA; 3Department of Experimental and Clinical Medicine, University of ‘Magna Græcia’ and Cancer Center, Catanzaro, Italy; 4Endocrine Unit, Massachusetts General Hospital, Boston, MA, USA and 5Callisto Pharmaceuticals Inc., New York, NY, USA Atiprimod (Atip) is a novel oral agent with anti-inflammatory tion.7,8 Atip inhibits the inflammatory response and preserves properties. Although its in vitro activity and effects on signaling bone integrity in murine models of rheumatoid arthritis (RA),9–12 in multiple myeloma (MM) have been previously reported, here targets macrophages, inhibits phospholipase A and C in rat we investigated its molecular and in vivo effects in MM. Gene 13,14 expression analysis of MM cells identified downregulation of alveolar macrophages and exhibits antiproliferative and 15–17 genes involved in adhesion, cell-signaling, cell cycle and bone antiangiogenic activities in human cancer models. Impor- morphogenetic protein (BMP) pathways and upregulation of tantly, we have previously reported that Atip inhibits MM cell genes implicated in apoptosis and bone development, follow- growth, induces caspase-mediated apoptosis, blocks the phos- ing Atip treatment. -
Hras Intracellular Trafficking and Signal Transduction Jodi Ho-Jung Mckay Iowa State University
Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 2007 HRas intracellular trafficking and signal transduction Jodi Ho-Jung McKay Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Biological Phenomena, Cell Phenomena, and Immunity Commons, Cancer Biology Commons, Cell Biology Commons, Genetics and Genomics Commons, and the Medical Cell Biology Commons Recommended Citation McKay, Jodi Ho-Jung, "HRas intracellular trafficking and signal transduction" (2007). Retrospective Theses and Dissertations. 13946. https://lib.dr.iastate.edu/rtd/13946 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. HRas intracellular trafficking and signal transduction by Jodi Ho-Jung McKay A dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Major: Genetics Program of Study Committee: Janice E. Buss, Co-major Professor Linda Ambrosio, Co-major Professor Diane Bassham Drena Dobbs Ted Huiatt Iowa State University Ames, Iowa 2007 Copyright © Jodi Ho-Jung McKay, 2007. All rights reserved. UMI Number: 3274881 Copyright 2007 by McKay, Jodi Ho-Jung All rights reserved. UMI Microform 3274881 Copyright 2008 by ProQuest Information and Learning Company. All rights reserved. This microform edition is protected against unauthorized copying under Title 17, United States Code. ProQuest Information and Learning Company 300 North Zeeb Road P.O. -
BD Pharmingen™ PE Rat Anti-Human Integrin Β7
BD Pharmingen™ Technical Data Sheet PE Rat Anti-Human Integrin β7 Product Information Material Number: 555945 Size: 100 tests Vol. per Test: 20 µl Clone: FIB504 Isotype: Rat (SD) IgG2a, κ Reactivity: QC Testing: Human Workshop: VI A024, VI 6T-101 Storage Buffer: Aqueous buffered solution containing BSA and ≤0.09% sodium azide. Description FIB504 reacts with mouse integrin β7 subunit (130 kD) but also cross reacts with human integrin β7. Integrin β7 associates with α4 (CD49d) expressed on subsets of lymphocytes and thymus. It also associates with αIEL (CD103) expressed on T cells adjacent to mucosal epithelium and intraepithelial lymphocytes. Integrin β7 plays an important role in the adhesion of leukocytes to endothelial cells promoting the transmigration of leukocytes to extravascular spaces during the inflammatory response. Profile of peripheral blood lymphocytes analyzed on a FACScan (BDIS, San Jose, CA) Preparation and Storage The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated with R-PE under optimum conditions, and unconjugated antibody and free PE were removed by gel filtration chromatography. Store undiluted at 4° C and protected from prolonged exposure to light. Do not freeze. Application Notes Application Flow cytometry Routinely Tested Suggested Companion Products Catalog Number Name Size Clone 555844 PE Rat IgG2a, κ Isotype Control 100 tests R35-95 555945 Rev. 3 Page 1 of 2 Product Notices 1. This reagent has been pre-diluted for use at the recommended Volume per Test. We typically use 1 X 10e6 cells in a 100-µl experimental sample (a test). 2. -
Supplementary Table 1: Adhesion Genes Data Set
Supplementary Table 1: Adhesion genes data set PROBE Entrez Gene ID Celera Gene ID Gene_Symbol Gene_Name 160832 1 hCG201364.3 A1BG alpha-1-B glycoprotein 223658 1 hCG201364.3 A1BG alpha-1-B glycoprotein 212988 102 hCG40040.3 ADAM10 ADAM metallopeptidase domain 10 133411 4185 hCG28232.2 ADAM11 ADAM metallopeptidase domain 11 110695 8038 hCG40937.4 ADAM12 ADAM metallopeptidase domain 12 (meltrin alpha) 195222 8038 hCG40937.4 ADAM12 ADAM metallopeptidase domain 12 (meltrin alpha) 165344 8751 hCG20021.3 ADAM15 ADAM metallopeptidase domain 15 (metargidin) 189065 6868 null ADAM17 ADAM metallopeptidase domain 17 (tumor necrosis factor, alpha, converting enzyme) 108119 8728 hCG15398.4 ADAM19 ADAM metallopeptidase domain 19 (meltrin beta) 117763 8748 hCG20675.3 ADAM20 ADAM metallopeptidase domain 20 126448 8747 hCG1785634.2 ADAM21 ADAM metallopeptidase domain 21 208981 8747 hCG1785634.2|hCG2042897 ADAM21 ADAM metallopeptidase domain 21 180903 53616 hCG17212.4 ADAM22 ADAM metallopeptidase domain 22 177272 8745 hCG1811623.1 ADAM23 ADAM metallopeptidase domain 23 102384 10863 hCG1818505.1 ADAM28 ADAM metallopeptidase domain 28 119968 11086 hCG1786734.2 ADAM29 ADAM metallopeptidase domain 29 205542 11085 hCG1997196.1 ADAM30 ADAM metallopeptidase domain 30 148417 80332 hCG39255.4 ADAM33 ADAM metallopeptidase domain 33 140492 8756 hCG1789002.2 ADAM7 ADAM metallopeptidase domain 7 122603 101 hCG1816947.1 ADAM8 ADAM metallopeptidase domain 8 183965 8754 hCG1996391 ADAM9 ADAM metallopeptidase domain 9 (meltrin gamma) 129974 27299 hCG15447.3 ADAMDEC1 ADAM-like, -
ADP-Ribosylation Factor, a Small GTP-Binding Protein, Is Required for Binding of the Coatomer Protein Fl-COP to Golgi Membranes JULIE G
Proc. Natl. Acad. Sci. USA Vol. 89, pp. 6408-6412, July 1992 Biochemistry ADP-ribosylation factor, a small GTP-binding protein, is required for binding of the coatomer protein fl-COP to Golgi membranes JULIE G. DONALDSON*, DAN CASSEL*t, RICHARD A. KAHN*, AND RICHARD D. KLAUSNER* *Cell Biology and Metabolism Branch, National Institute of Child Health and Human Development, and tLaboratory of Biological Chemistry, Division of Cancer Treatment, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892 Communicated by Marc Kirschner, April 20, 1992 (receivedfor review February 11, 1992) ABSTRACT The coatomer is a cytosolic protein complex localized to the Golgi complex, although their functions have that reversibly associates with Golgi membranes and is Impli- not been defined. Distinct among these proteins is the ADP- cated in modulating Golgi membrane transport. The associa- ribosylation factor (ARF), originally identified as a cofactor tion of 13-COP, a component of coatomer, with Golgi mem- required for in vitro cholera toxin-catalyzed ADP- branes is enhanced by guanosine 5'-[v-thioltriphosphate ribosylation of the a subunit of the trimeric GTP-binding (GTP[yS]), a nonhydrolyzable analogue of GTP, and by a protein G, (G,.) (19). ARF is an abundant cytosolic protein mixture of aluminum and fluoride ions (Al/F). Here we show that reversibly associates with Golgi membranes (20, 21). that the ADP-ribosylation factor (ARF) is required for the ARF has been shown to be present on Golgi coated vesicles binding of (-COP. Thus, 13-COP contained in a coatomer generated in the presence of GTP[yS], but it is not a com- fraction that has been resolved from ARF does not bind to Golgi ponent of the cytosolic coatomer (22). -
Biological Effect of the Interaction Between Mental Retardation Related Protein
生物化学与生物物理进展 ProgressinBiochemistryandBiophysics 2013,40(11):1124~1131 www.pibb.ac.cn BiologicalEffectofTheInteractionBetween MentalRetardationRelatedProtein (FXR1P)andCMAS* MAYun1)**,QINLing-Xue1)**,DONGXiao1),LIBin-Yuan1),WANGChang-Bo1), XUCan2),WANGSan-Hu1),HEShu-Ya1)*** (1) DepartmentofBiochemistry&Biology,UniversityofSouthChina,Hengyang 421001,China; 2) DepartmentofCardiologyofTheFisrtAffiliatedHospitalofUniversityofSouthChina,Hengyang 421001,China) Abstract FragileXsyndrome(FXS)isageneticmentalretardationdisease,withincidencesecondonlytotrisomy21syndrome. FragileXmentalretardationprotein(FMRP),isthecausativefactorofFXSandencodedbytheFragileXmentalretardation1(FMR1) gene,whichiswidelyexpressedincellsofthenerve,muscle,andtestes.FragileXrelatedprotein1(FXR1P)isencodedbya homologousgeneto FMR1———FragileXrelatedgene1(FXR1)andcaninteractwithproteinsandRNAs.Manyillnesseswere involvedinthealteredexpressionof FXR1.TounderstandthebiologicaleffectoftheinteractionbetweenFXR1PandCMAS,we constructedaFXR1 overexpressionvectorandinvestigateditsexpressioninPC12(theratpheochromocytoma)cellsandVSMC (vascularsmoothmusclecell)andtheeffectoftheoverexpressiononcellmorphologyandseveralcellprocessesrelatedto CMP-N-acetylneuraminicacidsynthetase(CMAS)activity.Wedemonstratethattheoverexpressionof FXR1 genecanincreaseactivity ofCMASinPC12cellsandprovideacertaindegreegrowthprotectionforthatcells.Thus,itsuggestsFXR1Pisatissue-specific regulatortoaltertheconcentrationofGM1inPC12cells,butnotinVSMC. Keywords FXR1P,CMAS,GM1,biologicaleffect,PC12,VSMC DOI:10.3724/SP.J.1206.2013.00004 -
CD Markers Are Routinely Used for the Immunophenotyping of Cells
ptglab.com 1 CD MARKER ANTIBODIES www.ptglab.com Introduction The cluster of differentiation (abbreviated as CD) is a protocol used for the identification and investigation of cell surface molecules. So-called CD markers are routinely used for the immunophenotyping of cells. Despite this use, they are not limited to roles in the immune system and perform a variety of roles in cell differentiation, adhesion, migration, blood clotting, gamete fertilization, amino acid transport and apoptosis, among many others. As such, Proteintech’s mini catalog featuring its antibodies targeting CD markers is applicable to a wide range of research disciplines. PRODUCT FOCUS PECAM1 Platelet endothelial cell adhesion of blood vessels – making up a large portion molecule-1 (PECAM1), also known as cluster of its intracellular junctions. PECAM-1 is also CD Number of differentiation 31 (CD31), is a member of present on the surface of hematopoietic the immunoglobulin gene superfamily of cell cells and immune cells including platelets, CD31 adhesion molecules. It is highly expressed monocytes, neutrophils, natural killer cells, on the surface of the endothelium – the thin megakaryocytes and some types of T-cell. Catalog Number layer of endothelial cells lining the interior 11256-1-AP Type Rabbit Polyclonal Applications ELISA, FC, IF, IHC, IP, WB 16 Publications Immunohistochemical of paraffin-embedded Figure 1: Immunofluorescence staining human hepatocirrhosis using PECAM1, CD31 of PECAM1 (11256-1-AP), Alexa 488 goat antibody (11265-1-AP) at a dilution of 1:50 anti-rabbit (green), and smooth muscle KD/KO Validated (40x objective). alpha-actin (red), courtesy of Nicola Smart. PECAM1: Customer Testimonial Nicola Smart, a cardiovascular researcher “As you can see [the immunostaining] is and a group leader at the University of extremely clean and specific [and] displays Oxford, has said of the PECAM1 antibody strong intercellular junction expression, (11265-1-AP) that it “worked beautifully as expected for a cell adhesion molecule.” on every occasion I’ve tried it.” Proteintech thanks Dr. -
The Emerging Roles and Therapeutic Potential of Cyclin- Dependent Kinase 11 (CDK11) in Human Cancer
www.impactjournals.com/oncotarget/ Oncotarget, Vol. 7, No. 26 Review The emerging roles and therapeutic potential of cyclin- dependent kinase 11 (CDK11) in human cancer Yubing Zhou1,2, Jacson K. Shen2, Francis J. Hornicek2, Quancheng Kan1 and Zhenfeng Duan1,2 1 Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China 2 Sarcoma Biology Laboratory, Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital, Boston, MA, United States of America Correspondence to: Quancheng Kan, email: [email protected] Correspondence to: Zhenfeng Duan, email: [email protected] Keywords: CDK11, CDKs inhibitor, cell cycle, therapeutic target, cancer therapy Received: January 20, 2016 Accepted: March 28, 2016 Published: March 31, 2016 ABSTRACT Overexpression and/or hyperactivation of cyclin-dependent kinases (CDKs) are common features of most cancer types. CDKs have been shown to play important roles in tumor cell proliferation and growth by controlling cell cycle, transcription, and RNA splicing. CDK4/6 inhibitor palbociclib has been recently approved by the FDA for the treatment of breast cancer. CDK11 is a serine/threonine protein kinase in the CDK family and recent studies have shown that CDK11 also plays critical roles in cancer cell growth and proliferation. A variety of genetic and epigenetic events may cause universal overexpression of CDK11 in human cancers. Inhibition of CDK11 has been shown to lead to cancer cell death and apoptosis. Significant evidence has suggested that CDK11 may be a novel and promising therapeutic target for the treatment of cancers. This review will focus on the emerging roles of CDK11 in human cancers, and provide a proof-of-principle for continued efforts toward targeting CDK11 for effective cancer treatment.