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  1. Article: Making Connections: Desmoplakin as an Intermediate Filament-Binding Protein.

    Kowalczyk, Andrew P / Kottke, Margaret D

    The Journal of investigative dermatology

    2007  Volume 127 Suppl 3, Page(s) E8–9

    Language English
    Publishing date 2007-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80136-7
    ISSN 1523-1747 ; 0022-202X
    ISSN (online) 1523-1747
    ISSN 0022-202X
    DOI 10.1038/sj.skinbio.6250008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Making connections: desmoplakin as an intermediate filament-binding protein.

    Kowalczyk, Andrew P / Kottke, Margaret D

    The Journal of investigative dermatology

    2007  Volume 127, Issue E1, Page(s) E8–9

    MeSH term(s) Cytoskeletal Proteins/metabolism ; Desmoplakins/metabolism ; Intermediate Filament Proteins/metabolism ; Intermediate Filaments/metabolism ; Protein Binding ; Proteins/metabolism
    Chemical Substances Cytoskeletal Proteins ; Desmoplakins ; Intermediate Filament Proteins ; Proteins
    Language English
    Publishing date 2007-01-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80136-7
    ISSN 1523-1747 ; 0022-202X
    ISSN (online) 1523-1747
    ISSN 0022-202X
    DOI 10.1038/sj.skinbio.6250008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: The desmosome: cell science lessons from human diseases.

    Kottke, Margaret D / Delva, Emmanuella / Kowalczyk, Andrew P

    Journal of cell science

    2006  Volume 119, Issue Pt 5, Page(s) 797–806

    Abstract: Human skin diseases have revealed fundamental mechanisms by which cytoskeletal proteins contribute to tissue architecture and function. In particular, the analysis of epidermal blistering disorders and the role of keratin gene mutations in these diseases ...

    Abstract Human skin diseases have revealed fundamental mechanisms by which cytoskeletal proteins contribute to tissue architecture and function. In particular, the analysis of epidermal blistering disorders and the role of keratin gene mutations in these diseases has led to significant increases in our understanding of intermediate filament biology. The major cell-surface attachment site for intermediate filament networks is the desmosome, an adhesive intercellular junction prominent in the epidermis and the heart. During the past decade, substantial progress has been made in understanding the molecular basis of a variety of epidermal autoimmune diseases, skin fragility syndromes, and disorders that involve a combination of heart and skin defects caused by perturbations in desmosome structure and function. These human diseases reveal key roles for desmosomes in maintaining tissue integrity, but also suggest functions for desmosomal components in signal transduction pathways and epidermal organization.
    MeSH term(s) Cytoskeletal Proteins/immunology ; Cytoskeletal Proteins/metabolism ; Desmosomal Cadherins/immunology ; Desmosomal Cadherins/metabolism ; Desmosomes/chemistry ; Desmosomes/immunology ; Desmosomes/pathology ; Humans ; Skin Diseases/immunology ; Skin Diseases/pathology
    Chemical Substances Cytoskeletal Proteins ; Desmosomal Cadherins
    Language English
    Publishing date 2006-03-01
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Review
    ZDB-ID 2993-2
    ISSN 1477-9137 ; 0021-9533
    ISSN (online) 1477-9137
    ISSN 0021-9533
    DOI 10.1242/jcs.02888
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Intravenous cidofovir-induced resolution of disfiguring cutaneous human papillomavirus infection.

    Kottke, Margaret D / Parker, Sareeta R S

    Journal of the American Academy of Dermatology

    2006  Volume 55, Issue 3, Page(s) 533–536

    Abstract: Human papillomavirus infection is one of the most common and most distressing cutaneous diseases in patients with HIV infection. It is also a common, and often therapeutically challenging, infection in individuals who are immunologically competent. A ... ...

    Abstract Human papillomavirus infection is one of the most common and most distressing cutaneous diseases in patients with HIV infection. It is also a common, and often therapeutically challenging, infection in individuals who are immunologically competent. A wide range of therapeutic options exists for treating cutaneous human papillomavirus infections, but none is uniformly effective. In this report we describe a man with HIV-1 infection and disfiguring facial verruca vulgaris who demonstrated complete clinical response to intravenous cidofovir. Our report provides further support for the use of intravenous cidofovir as therapy for treatment-resistant and/or widespread cutaneous human papillomavirus infection.
    MeSH term(s) Adult ; Antiviral Agents/administration & dosage ; Antiviral Agents/therapeutic use ; Cytosine/administration & dosage ; Cytosine/analogs & derivatives ; Cytosine/therapeutic use ; Humans ; Injections, Intravenous ; Male ; Organophosphonates/administration & dosage ; Organophosphonates/therapeutic use ; Papillomavirus Infections/drug therapy ; Papillomavirus Infections/pathology ; Skin Diseases, Viral/drug therapy ; Skin Diseases, Viral/pathology ; Treatment Outcome
    Chemical Substances Antiviral Agents ; Organophosphonates ; Cytosine (8J337D1HZY) ; cidofovir (JIL713Q00N)
    Language English
    Publishing date 2006-09
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 603641-7
    ISSN 1097-6787 ; 0190-9622
    ISSN (online) 1097-6787
    ISSN 0190-9622
    DOI 10.1016/j.jaad.2006.01.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: The desmosome: cell science lessons from human diseases

    Kottke, Margaret D / Delva, Emmanuella / Kowalczyk, Andrew P

    Journal of cell science. 2006 Mar. 1, v. 119, no. 5

    2006  

    Abstract: Human skin diseases have revealed fundamental mechanisms by which cytoskeletal proteins contribute to tissue architecture and function. In particular, the analysis of epidermal blistering disorders and the role of keratin gene mutations in these diseases ...

    Abstract Human skin diseases have revealed fundamental mechanisms by which cytoskeletal proteins contribute to tissue architecture and function. In particular, the analysis of epidermal blistering disorders and the role of keratin gene mutations in these diseases has led to significant increases in our understanding of intermediate filament biology. The major cell-surface attachment site for intermediate filament networks is the desmosome, an adhesive intercellular junction prominent in the epidermis and the heart. During the past decade, substantial progress has been made in understanding the molecular basis of a variety of epidermal autoimmune diseases, skin fragility syndromes, and disorders that involve a combination of heart and skin defects caused by perturbations in desmosome structure and function. These human diseases reveal key roles for desmosomes in maintaining tissue integrity, but also suggest functions for desmosomal components in signal transduction pathways and epidermal organization.
    Language English
    Dates of publication 2006-0301
    Size p. 797-806.
    Publishing place The Company of Biologists Limited
    Document type Article
    ZDB-ID 2993-2
    ISSN 1477-9137 ; 0021-9533
    ISSN (online) 1477-9137
    ISSN 0021-9533
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: Pemphigus vulgaris IgG-induced desmoglein-3 endocytosis and desmosomal disassembly are mediated by a clathrin- and dynamin-independent mechanism.

    Delva, Emmanuella / Jennings, Jean Marie / Calkins, Cathárine C / Kottke, Margaret D / Faundez, Victor / Kowalczyk, Andrew P

    The Journal of biological chemistry

    2008  Volume 283, Issue 26, Page(s) 18303–18313

    Abstract: Pemphigus vulgaris (PV) is a life-threatening autoimmune disease characterized by oral mucosal erosions and epidermal blistering. The autoantibodies generated target the desmosomal cadherin desmoglein-3 (Dsg3). Previous studies demonstrate that upon PV ... ...

    Abstract Pemphigus vulgaris (PV) is a life-threatening autoimmune disease characterized by oral mucosal erosions and epidermal blistering. The autoantibodies generated target the desmosomal cadherin desmoglein-3 (Dsg3). Previous studies demonstrate that upon PV IgG binding, Dsg3 is internalized and enters an endo-lysosomal pathway where it is degraded. To define the endocytic machinery involved in PV IgG-induced Dsg3 internalization, human keratinocytes were incubated with PV IgG, and various tools were used to perturb distinct endocytic pathways. The PV IgG.Dsg3 complex failed to colocalize with clathrin, and inhibitors of clathrin- and dynamin-dependent pathways had little or no effect on Dsg3 internalization. In contrast, cholesterol binding agents such as filipin and nystatin and the tyrosine kinase inhibitor genistein dramatically inhibited Dsg3 internalization. Furthermore, the Dsg3 cytoplasmic tail specified sensitivity to these inhibitors. Moreover, inhibition of Dsg3 endocytosis with genistein prevented disruption of desmosomes and loss of adhesion in the presence of PV IgG. Altogether, these results suggest that PV IgG-induced Dsg3 internalization is mediated through a clathrin- and dynamin-independent pathway and that Dsg3 endocytosis is tightly coupled to the pathogenic activity of PV IgG.
    MeSH term(s) Cell Adhesion ; Cells, Cultured ; Clathrin/chemistry ; Cytoplasm/metabolism ; Desmoglein 3/chemistry ; Dynamins/chemistry ; Endocytosis ; Gene Expression Regulation ; Genistein/pharmacology ; Humans ; Immunoglobulin G/chemistry ; Keratinocytes/cytology ; Keratinocytes/metabolism ; Pemphigus/immunology ; Protein Binding ; Protein-Tyrosine Kinases/metabolism
    Chemical Substances Clathrin ; Desmoglein 3 ; Immunoglobulin G ; Genistein (DH2M523P0H) ; Protein-Tyrosine Kinases (EC 2.7.10.1) ; Dynamins (EC 3.6.5.5)
    Language English
    Publishing date 2008-04-23
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2997-x
    ISSN 1083-351X ; 0021-9258
    ISSN (online) 1083-351X
    ISSN 0021-9258
    DOI 10.1074/jbc.M710046200
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Desmosome disassembly in response to pemphigus vulgaris IgG occurs in distinct phases and can be reversed by expression of exogenous Dsg3.

    Jennings, Jean M / Tucker, Dana K / Kottke, Margaret D / Saito, Masataka / Delva, Emmanuella / Hanakawa, Yasushi / Amagai, Masayuki / Kowalczyk, Andrew P

    The Journal of investigative dermatology

    2010  Volume 131, Issue 3, Page(s) 706–718

    Abstract: Pemphigus vulgaris (PV) is an epidermal blistering disorder caused by antibodies directed against the desmosomal cadherin desmoglein-3 (Dsg3). The mechanism by which PV IgG disrupts adhesion is not fully understood. To address this issue, primary human ... ...

    Abstract Pemphigus vulgaris (PV) is an epidermal blistering disorder caused by antibodies directed against the desmosomal cadherin desmoglein-3 (Dsg3). The mechanism by which PV IgG disrupts adhesion is not fully understood. To address this issue, primary human keratinocytes (KCs) and patient IgG were used to define the morphological, biochemical, and functional changes triggered by PV IgG. Three phases of desmosome disassembly were distinguished. Analysis of fixed and living KCs demonstrated that PV IgG cause rapid Dsg3 internalization, which likely originates from a non-junctional pool of Dsg3. Subsequently, Dsg3 and other desmosomal components rearrange into linear arrays that run perpendicular to cell contacts. Dsg3 complexes localized at the cell surface are transported in a retrograde manner along with these arrays before being released into cytoplasmic vesicular compartments. These changes in Dsg3 distribution are followed by depletion of detergent-insoluble Dsg3 pools and by the loss of cell adhesion strength. Importantly, this process of disassembly can be prevented by expressing exogenous Dsg3, thereby driving Dsg3 biosynthesis and desmosome assembly. These data support a model in which PV IgG cause the loss of cell adhesion by altering the dynamics of Dsg3 assembly into desmosomes and the turnover of cell surface pools of Dsg3 through endocytic pathways.
    MeSH term(s) Antibodies/blood ; Antibodies/pharmacology ; Cell Adhesion/drug effects ; Cells, Cultured ; Desmoglein 3/metabolism ; Desmoglein 3/pharmacology ; Desmosomes/drug effects ; Desmosomes/metabolism ; Desmosomes/ultrastructure ; Endocytosis/drug effects ; Humans ; Immunoglobulin G/metabolism ; Immunoglobulin G/pharmacology ; Keratinocytes/cytology ; Keratinocytes/drug effects ; Keratinocytes/metabolism ; Male ; Microscopy, Immunoelectron ; Pemphigus/blood ; Pemphigus/immunology
    Chemical Substances Antibodies ; DSG3 protein, human ; Desmoglein 3 ; Immunoglobulin G
    Language English
    Publishing date 2010-12-16
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 80136-7
    ISSN 1523-1747 ; 0022-202X
    ISSN (online) 1523-1747
    ISSN 0022-202X
    DOI 10.1038/jid.2010.389
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A Framework for Outpatient Infusion of Antispike Monoclonal Antibodies to High-Risk Patients with Mild-to-Moderate Coronavirus Disease-19: The Mayo Clinic Model.

    Razonable, Raymund R / Aloia, Nicole C E / Anderson, Ryan J / Anil, Gokhan / Arndt, Lori L / Arndt, Richard F / Ausman, Sara E / Bell, Sarah J / Bierle, Dennis M / Billings, Marcie L / Bishop, Rachel K / Cramer, Carl H / Culbertson, Tracy L / Dababneh, Ala S / Derr, Amber N / Epps, Kevin / Flaker, Susan M / Ganesh, Ravindra / Gilmer, Mary A /
    Urena, Eric Gomez / Gulden, Christopher R / Haack, Tamara L / Hanson, Sara N / Herzog, Jenna R / Heyliger, Alexander / Hokanson, Lex D / Hopkins, Laura H / Horecki, Richard J / Krishna, Bipinchandra Hirisave / Huskins, W Charles / Jackson, Tammy A / Johnson, Ryan R / Jorgenson, Betty / Kudrna, Cory / Kennedy, Brian D / Klingsporn, Mary K / Kottke, Brian / Larsen, Jennifer J / Lessard, Sarah R / Lutwick, Larry I / Malone, Edward J / Matoush, Jennifer A / Micallef, Ivana N / Moehnke, Darcie E / Mohamed, Muhanad / Ness, Colleena N / Olson, Shelly M / Orenstein, Robert / Palraj, Raj / Patel, Janki / Paulson, Damian J / Phelan, David / Peinovich, Margaret T / Ramsey, Wilford L / Rau-Kane, Taunya J / Reid, Kevin I / Reinschmidt, Karen J / Seville, Maria Teresa / Skold, Erin C / Smith, Jill M / Speicher, Leigh L / Spielman, Laurie A / Springer, Donna J / Sweeten, Perry W / Tempelis, Jennifer M / Tulledge-Scheitel, Sidna / Vergidis, Paschalis / Whipple, Daniel C / Wilker, Caroline G / Destro Borgen, Molly J

    Mayo Clinic proceedings

    2021  Volume 96, Issue 5, Page(s) 1250–1261

    Abstract: The administration of spike monoclonal antibody treatment to patients with mild to moderate COVID-19 is very challenging. This article summarizes essential components and processes in establishing an effective spike monoclonal antibody infusion program. ... ...

    Abstract The administration of spike monoclonal antibody treatment to patients with mild to moderate COVID-19 is very challenging. This article summarizes essential components and processes in establishing an effective spike monoclonal antibody infusion program. Rapid identification of a dedicated physical infrastructure was essential to circumvent the logistical challenges of caring for infectious patients while maintaining compliance with regulations and ensuring the safety of our personnel and other patients. Our partnerships and collaborations among multiple different specialties and disciplines enabled contributions from personnel with specific expertise in medicine, nursing, pharmacy, infection prevention and control, electronic health record (EHR) informatics, compliance, legal, medical ethics, engineering, administration, and other critical areas. Clear communication and a culture in which all roles are welcomed at the planning and operational tables are critical to the rapid development and refinement needed to adapt and thrive in providing this time-sensitive beneficial therapy. Our partnerships with leaders and providers outside our institutions, including those who care for underserved populations, have promoted equity in the access of monoclonal antibodies in our regions. Strong support from institutional leadership facilitated expedited action when needed, from a physical, personnel, and system infrastructure standpoint. Our ongoing real-time assessment and monitoring of our clinical program allowed us to improve and optimize our processes to ensure that the needs of our patients with COVID-19 in the outpatient setting are met.
    MeSH term(s) Antibodies, Monoclonal/administration & dosage ; Antiviral Agents/administration & dosage ; COVID-19/epidemiology ; COVID-19/therapy ; Clinical Protocols ; Critical Pathways/organization & administration ; Critical Pathways/trends ; Efficiency, Organizational ; Home Infusion Therapy/methods ; Home Infusion Therapy/standards ; Humans ; Intersectoral Collaboration ; Organizational Culture ; Program Development/methods ; SARS-CoV-2/immunology ; SARS-CoV-2/isolation & purification ; Severity of Illness Index ; Spike Glycoprotein, Coronavirus/antagonists & inhibitors ; Spike Glycoprotein, Coronavirus/immunology ; United States/epidemiology
    Chemical Substances Antibodies, Monoclonal ; Antiviral Agents ; Spike Glycoprotein, Coronavirus ; spike protein, SARS-CoV-2
    Language English
    Publishing date 2021-03-09
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 124027-4
    ISSN 1942-5546 ; 0025-6196
    ISSN (online) 1942-5546
    ISSN 0025-6196
    DOI 10.1016/j.mayocp.2021.03.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Pemphigus Vulgaris IgG-induced Desmoglein-3 Endocytosis and Desmosomal Disassembly Are Mediated by a Clathrin- and Dynamin-independent Mechanism

    Delva, Emmanuella / Jennings, Jean Marie / Calkins, Cathárine C / Kottke, Margaret D / Faundez, Victor / Kowalczyk, Andrew P

    Journal of biological chemistry. 2008 June 27, v. 283, no. 26

    2008  

    Abstract: Pemphigus vulgaris (PV) is a life-threatening autoimmune disease characterized by oral mucosal erosions and epidermal blistering. The autoantibodies generated target the desmosomal cadherin desmoglein-3 (Dsg3). Previous studies demonstrate that upon PV ... ...

    Abstract Pemphigus vulgaris (PV) is a life-threatening autoimmune disease characterized by oral mucosal erosions and epidermal blistering. The autoantibodies generated target the desmosomal cadherin desmoglein-3 (Dsg3). Previous studies demonstrate that upon PV IgG binding, Dsg3 is internalized and enters an endo-lysosomal pathway where it is degraded. To define the endocytic machinery involved in PV IgG-induced Dsg3 internalization, human keratinocytes were incubated with PV IgG, and various tools were used to perturb distinct endocytic pathways. The PV IgG ·Dsg3 complex failed to colocalize with clathrin, and inhibitors of clathrin- and dynamin-dependent pathways had little or no effect on Dsg3 internalization. In contrast, cholesterol binding agents such as filipin and nystatin and the tyrosine kinase inhibitor genistein dramatically inhibited Dsg3 internalization. Furthermore, the Dsg3 cytoplasmic tail specified sensitivity to these inhibitors. Moreover, inhibition of Dsg3 endocytosis with genistein prevented disruption of desmosomes and loss of adhesion in the presence of PV IgG. Altogether, these results suggest that PV IgG-induced Dsg3 internalization is mediated through a clathrin- and dynamin-independent pathway and that Dsg3 endocytosis is tightly coupled to the pathogenic activity of PV IgG.
    Language English
    Dates of publication 2008-0627
    Size p. 18303-18313.
    Publishing place American Society for Biochemistry and Molecular Biology
    Document type Article
    ZDB-ID 2997-x
    ISSN 1083-351X ; 0021-9258
    ISSN (online) 1083-351X
    ISSN 0021-9258
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Cellular levels of p120 catenin function as a set point for cadherin expression levels in microvascular endothelial cells.

    Xiao, Kanyan / Allison, David F / Buckley, Kathleen M / Kottke, Margaret D / Vincent, Peter A / Faundez, Victor / Kowalczyk, Andrew P

    The Journal of cell biology

    2003  Volume 163, Issue 3, Page(s) 535–545

    Abstract: The mechanisms by which catenins regulate cadherin function are not fully understood, and the precise function of p120 catenin (p120ctn) has remained particularly elusive. In microvascular endothelial cells, p120ctn colocalized extensively with cell ... ...

    Abstract The mechanisms by which catenins regulate cadherin function are not fully understood, and the precise function of p120 catenin (p120ctn) has remained particularly elusive. In microvascular endothelial cells, p120ctn colocalized extensively with cell surface VE-cadherin, but failed to colocalize with VE-cadherin that had entered intracellular degradative compartments. To test the possibility that p120ctn binding to VE-cadherin regulates VE-cadherin internalization, a series of approaches were undertaken to manipulate p120ctn availability to endogenous VE-cadherin. Expression of VE-cadherin mutants that competed for p120ctn binding triggered the degradation of endogenous VE-cadherin. Similarly, reducing levels of p120ctn using siRNA caused a dramatic and dose-related reduction in cellular levels of VE-cadherin. In contrast, overexpression of p120ctn increased VE-cadherin cell surface levels and inhibited entry of cell surface VE-cadherin into degradative compartments. These results demonstrate that cellular levels of p120ctn function as a set point mechanism that regulates cadherin expression levels, and that a major function of p120ctn is to control cadherin internalization and degradation.
    MeSH term(s) Antigens, CD ; Cadherins/genetics ; Cadherins/metabolism ; Catenins ; Cell Adhesion/genetics ; Cell Adhesion Molecules/antagonists & inhibitors ; Cell Adhesion Molecules/genetics ; Cell Adhesion Molecules/metabolism ; Cell Line ; Endocytosis/genetics ; Endothelium, Vascular/metabolism ; Feedback, Physiological/genetics ; Humans ; Mutation/genetics ; Phosphoproteins/antagonists & inhibitors ; Phosphoproteins/genetics ; Phosphoproteins/metabolism ; Protein Binding/drug effects ; Protein Binding/genetics ; Protein Transport/genetics ; RNA, Small Interfering/pharmacology
    Chemical Substances Antigens, CD ; Cadherins ; Catenins ; Cell Adhesion Molecules ; Phosphoproteins ; RNA, Small Interfering ; cadherin 5 ; delta catenin
    Language English
    Publishing date 2003-11-10
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 218154-x
    ISSN 1540-8140 ; 0021-9525
    ISSN (online) 1540-8140
    ISSN 0021-9525
    DOI 10.1083/jcb.200306001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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