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  1. Article ; Online: Characterization of the human platelet N- and O-glycome upon storage using tandem mass spectrometry.

    Rosenbalm, Katelyn E / Lee-Sundlov, Melissa M / Ashline, David J / Grozovsky, Renata / Aoki, Kazuhiro / Hanneman, Andrew J S / Hoffmeister, Karin M

    Blood advances

    2023  Volume 7, Issue 16, Page(s) 4278–4290

    Abstract: Changes in surface glycan determinants, specifically sialic acid loss, determine platelet life span. The gradual loss of stored platelet quality is a complex process that fundamentally involves carbohydrate structures. Here, we applied lipophilic ... ...

    Abstract Changes in surface glycan determinants, specifically sialic acid loss, determine platelet life span. The gradual loss of stored platelet quality is a complex process that fundamentally involves carbohydrate structures. Here, we applied lipophilic extraction and glycan release protocols to sequentially profile N- and O-linked glycans in freshly isolated and 7-day room temperature-stored platelet concentrates. Analytical methods including matrix assisted laser desorption/ionization time-of-flight mass spectrometry, tandem mass spectrometry, and liquid chromatography were used to obtain structural details of selected glycans and terminal epitopes. The fresh platelet repertoire of surface structures revealed diverse N-glycans, including high mannose structures, complex glycans with polylactosamine repeats, and glycans presenting blood group epitopes. The O-glycan repertoire largely comprised sialylated and fucosylated core-1 and core-2 structures. For both N- and O-linked glycans, we observed a loss in sialylated epitopes with a reciprocal increase in neutral structures as well as increased neuraminidase activity after platelet storage at room temperature. The data indicate that loss of sialylated glycans is associated with diminished platelet quality and untimely removal of platelets after storage.
    MeSH term(s) Humans ; Tandem Mass Spectrometry ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/methods ; Blood Platelets/chemistry ; Polysaccharides ; Epitopes
    Chemical Substances Polysaccharides ; Epitopes
    Language English
    Publishing date 2023-03-23
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2915908-8
    ISSN 2473-9537 ; 2473-9529
    ISSN (online) 2473-9537
    ISSN 2473-9529
    DOI 10.1182/bloodadvances.2022007084
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Glycomics-informed glycoproteomic analysis of site-specific glycosylation for SARS-CoV-2 spike protein.

    Rosenbalm, Katelyn E / Tiemeyer, Michael / Wells, Lance / Aoki, Kazuhiro / Zhao, Peng

    STAR protocols

    2020  Volume 1, Issue 3, Page(s) 100214

    Abstract: This protocol describes an integrated approach for analyzing site-specific N- and O-linked glycosylation of SARS-CoV-2 spike protein by mass spectrometry. Glycoproteomics analyzes intact glycopeptides to examine site-specific microheterogeneity of ... ...

    Abstract This protocol describes an integrated approach for analyzing site-specific N- and O-linked glycosylation of SARS-CoV-2 spike protein by mass spectrometry. Glycoproteomics analyzes intact glycopeptides to examine site-specific microheterogeneity of glycoproteins. Glycomics provides structural characterization on any glycan assignments by glycoproteomics. This procedure can be modified and applied to a variety of N- and/or O-linked glycoproteins. Combined with bioinformatics, the glycomics-informed glycoproteomics may be useful in generating 3D molecular dynamics simulations of certain glycoproteins alone or interacting with one another. For complete details on the use and execution of this protocol, please refer to Zhao et al. (2020).
    MeSH term(s) COVID-19/virology ; Glycomics/methods ; Glycoproteins/analysis ; Glycoproteins/chemistry ; Glycoproteins/metabolism ; Glycosylation ; Humans ; Proteomics/methods ; Spike Glycoprotein, Coronavirus/analysis ; Spike Glycoprotein, Coronavirus/chemistry ; Spike Glycoprotein, Coronavirus/metabolism
    Chemical Substances Glycoproteins ; Spike Glycoprotein, Coronavirus ; spike protein, SARS-CoV-2
    Language English
    Publishing date 2020-12-15
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ISSN 2666-1667
    ISSN (online) 2666-1667
    DOI 10.1016/j.xpro.2020.100214
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Chronic exposure to low doses of ionizing radiation impacts the processing of glycoprotein N-linked glycans in Medaka (

    Perez-Gelvez, Yeni Natalia C / Unger, Shem / Kurz, Simone / Rosenbalm, Katelyn / Wright, William Matthew / Rhodes, Olin E / Tiemeyer, Michael / Bergmann, Carl W

    International journal of radiation biology

    2021  Volume 97, Issue 3, Page(s) 401–420

    Abstract: Purpose: Ionizing radiation is found naturally in the environment. Low doses of IR may have beneficial applications, yet there is also potential for detrimental long-term health effects. Impacts following exposure to low levels of IR have been ... ...

    Abstract Purpose: Ionizing radiation is found naturally in the environment. Low doses of IR may have beneficial applications, yet there is also potential for detrimental long-term health effects. Impacts following exposure to low levels of IR have been refractory to identification and quantification. Glycoprotein glycosylation is vital to cell-cell communication and organismal function, and sensitive to changes in an organism's macro- and cellular environment. We investigated whether accumulated low doses of IR (LoDIR) affect the N-linked glycoprotein glycans using Medaka fish (Oryzias latipes).
    Materials and methods: State-of-the-art methods in radiation exposure and glycan analysis were applied to study N-glycan changes after 190 day exposure at three different rates of gamma irradiation (2.25, 21.01, and 204.3 mGy/day) in wild-type adult Medaka. Tissue N-glycans were analyzed following enzymatic release from extracted proteins.
    Results: N-linked glycan profiles are dominated by complex type N-glycans modified with terminal sialic acid and core fucose. Fucosylation and sialylation of N-linked glycoprotein glycans are affected by LoDIR and a subset of N-glycans are involved in the organismal radio-response.
    Conclusion: This is the first indication that the glycome can be interrogated for biomarkers that report the impact of chronic exposure to environmental stressors, such as low-level IR.
    MeSH term(s) Animals ; Dose-Response Relationship, Radiation ; Gamma Rays/adverse effects ; Glycoproteins/metabolism ; Glycosylation ; Oryzias/metabolism ; Polysaccharides/metabolism
    Chemical Substances Glycoproteins ; Polysaccharides
    Language English
    Publishing date 2021-01-07
    Publishing country England
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 3065-x
    ISSN 1362-3095 ; 0020-7616 ; 0955-3002
    ISSN (online) 1362-3095
    ISSN 0020-7616 ; 0955-3002
    DOI 10.1080/09553002.2021.1864500
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Glycomics-informed glycoproteomic analysis of site-specific glycosylation for SARS-CoV-2 spike protein

    Katelyn E. Rosenbalm / Michael Tiemeyer / Lance Wells / Kazuhiro Aoki / Peng Zhao

    STAR Protocols, Vol 1, Iss 3, Pp 100214- (2020)

    2020  

    Abstract: Summary: This protocol describes an integrated approach for analyzing site-specific N- and O-linked glycosylation of SARS-CoV-2 spike protein by mass spectrometry. Glycoproteomics analyzes intact glycopeptides to examine site-specific microheterogeneity ... ...

    Abstract Summary: This protocol describes an integrated approach for analyzing site-specific N- and O-linked glycosylation of SARS-CoV-2 spike protein by mass spectrometry. Glycoproteomics analyzes intact glycopeptides to examine site-specific microheterogeneity of glycoproteins. Glycomics provides structural characterization on any glycan assignments by glycoproteomics. This procedure can be modified and applied to a variety of N- and/or O-linked glycoproteins. Combined with bioinformatics, the glycomics-informed glycoproteomics may be useful in generating 3D molecular dynamics simulations of certain glycoproteins alone or interacting with one another.For complete details on the use and execution of this protocol, please refer to Zhao et al. (2020).
    Keywords Proteomics ; Mass Spectrometry ; Science (General) ; Q1-390
    Language English
    Publishing date 2020-12-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: Virus-Receptor Interactions of Glycosylated SARS-CoV-2 Spike and Human ACE2 Receptor.

    Zhao, Peng / Praissman, Jeremy L / Grant, Oliver C / Cai, Yongfei / Xiao, Tianshu / Rosenbalm, Katelyn E / Aoki, Kazuhiro / Kellman, Benjamin P / Bridger, Robert / Barouch, Dan H / Brindley, Melinda A / Lewis, Nathan E / Tiemeyer, Michael / Chen, Bing / Woods, Robert J / Wells, Lance

    bioRxiv : the preprint server for biology

    2020  

    Abstract: The current COVID-19 pandemic is caused by the SARS-CoV-2 betacoronavirus, which utilizes its highly glycosylated trimeric Spike protein to bind to the cell surface receptor ACE2 glycoprotein and facilitate host cell entry. We utilized glycomics-informed ...

    Abstract The current COVID-19 pandemic is caused by the SARS-CoV-2 betacoronavirus, which utilizes its highly glycosylated trimeric Spike protein to bind to the cell surface receptor ACE2 glycoprotein and facilitate host cell entry. We utilized glycomics-informed glycoproteomics to characterize site-specific microheterogeneity of glycosylation for a recombinant trimer Spike mimetic immunogen and for a soluble version of human ACE2. We combined this information with bioinformatic analyses of natural variants and with existing 3D-structures of both glycoproteins to generate molecular dynamics simulations of each glycoprotein alone and interacting with one another. Our results highlight roles for glycans in sterically masking polypeptide epitopes and directly modulating Spike-ACE2 interactions. Furthermore, our results illustrate the impact of viral evolution and divergence on Spike glycosylation, as well as the influence of natural variants on ACE2 receptor glycosylation that, taken together, can facilitate immunogen design to achieve antibody neutralization and inform therapeutic strategies to inhibit viral infection.
    Keywords covid19
    Language English
    Publishing date 2020-07-24
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2020.06.25.172403
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Virus-Receptor Interactions of Glycosylated SARS-CoV-2 Spike and Human ACE2 Receptor.

    Zhao, Peng / Praissman, Jeremy L / Grant, Oliver C / Cai, Yongfei / Xiao, Tianshu / Rosenbalm, Katelyn E / Aoki, Kazuhiro / Kellman, Benjamin P / Bridger, Robert / Barouch, Dan H / Brindley, Melinda A / Lewis, Nathan E / Tiemeyer, Michael / Chen, Bing / Woods, Robert J / Wells, Lance

    Cell host & microbe

    2020  Volume 28, Issue 4, Page(s) 586–601.e6

    Abstract: The SARS-CoV-2 betacoronavirus uses its highly glycosylated trimeric Spike protein to bind to the cell surface receptor angiotensin converting enzyme 2 (ACE2) glycoprotein and facilitate host cell entry. We utilized glycomics-informed glycoproteomics to ... ...

    Abstract The SARS-CoV-2 betacoronavirus uses its highly glycosylated trimeric Spike protein to bind to the cell surface receptor angiotensin converting enzyme 2 (ACE2) glycoprotein and facilitate host cell entry. We utilized glycomics-informed glycoproteomics to characterize site-specific microheterogeneity of glycosylation for a recombinant trimer Spike mimetic immunogen and for a soluble version of human ACE2. We combined this information with bioinformatics analyses of natural variants and with existing 3D structures of both glycoproteins to generate molecular dynamics simulations of each glycoprotein both alone and interacting with one another. Our results highlight roles for glycans in sterically masking polypeptide epitopes and directly modulating Spike-ACE2 interactions. Furthermore, our results illustrate the impact of viral evolution and divergence on Spike glycosylation, as well as the influence of natural variants on ACE2 receptor glycosylation. Taken together, these data can facilitate immunogen design to achieve antibody neutralization and inform therapeutic strategies to inhibit viral infection.
    MeSH term(s) Angiotensin-Converting Enzyme 2 ; Betacoronavirus/metabolism ; COVID-19 ; Coronavirus Infections/enzymology ; Coronavirus Infections/virology ; Glycosylation ; HEK293 Cells ; Humans ; Molecular Dynamics Simulation ; Pandemics ; Peptidyl-Dipeptidase A/chemistry ; Peptidyl-Dipeptidase A/metabolism ; Pneumonia, Viral/enzymology ; Pneumonia, Viral/virology ; Protein Domains ; Protein Interaction Domains and Motifs ; Receptors, Virus/chemistry ; Receptors, Virus/metabolism ; SARS-CoV-2 ; Spike Glycoprotein, Coronavirus/chemistry ; Spike Glycoprotein, Coronavirus/metabolism ; Virus Internalization
    Chemical Substances Receptors, Virus ; Spike Glycoprotein, Coronavirus ; spike protein, SARS-CoV-2 ; Peptidyl-Dipeptidase A (EC 3.4.15.1) ; ACE2 protein, human (EC 3.4.17.23) ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23)
    Keywords covid19
    Language English
    Publishing date 2020-08-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2278004-X
    ISSN 1934-6069 ; 1931-3128
    ISSN (online) 1934-6069
    ISSN 1931-3128
    DOI 10.1016/j.chom.2020.08.004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Virus-Receptor Interactions of Glycosylated SARS-CoV-2 Spike and Human ACE2 Receptor

    Zhao, Peng / Praissman, Jeremy L. / Grant, Oliver C. / Cai, Yongfei / Xiao, Tianshu / Rosenbalm, Katelyn E. / Aoki, Kazuhiro / Kellman, Benjamin P. / Bridger, Robert / Barouch, Dan H. / Brindley, Melinda A. / Lewis, Nathan E. / Tiemeyer, Michael / Chen, Bing / Woods, Robert J. / Wells, Lance

    Cell Host & Microbe

    2020  Volume 28, Issue 4, Page(s) 586–601.e6

    Keywords Microbiology ; Parasitology ; Virology ; covid19
    Language English
    Publisher Elsevier BV
    Publishing country us
    Document type Article ; Online
    ZDB-ID 2278004-X
    ISSN 1931-3128
    ISSN 1931-3128
    DOI 10.1016/j.chom.2020.08.004
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Prediction of Response to Therapy for Autoimmune/Inflammatory Diseases Using an Activated Macrophage-Targeted Radioimaging Agent.

    Kelderhouse, Lindsay E / Robins, Meridith T / Rosenbalm, Katelyn E / Hoylman, Emily K / Mahalingam, Sakkarapalayam / Low, Philip S

    Molecular pharmaceutics

    2015  Volume 12, Issue 10, Page(s) 3547–3555

    Abstract: The ability to select patients who will respond to therapy is especially acute for autoimmune/inflammatory diseases, where the costs of therapies can be high and the progressive damage associated with ineffective treatments can be irreversible. In this ... ...

    Abstract The ability to select patients who will respond to therapy is especially acute for autoimmune/inflammatory diseases, where the costs of therapies can be high and the progressive damage associated with ineffective treatments can be irreversible. In this article we describe a clinical test that will rapidly predict the response of patients with an autoimmune/inflammatory disease to many commonly employed therapies. This test involves quantitative assessment of uptake of a folate receptor-targeted radioimaging agent ((99m)Tc-EC20) by a subset of inflammatory macrophages that accumulate at sites of inflammation. Murine models of four representative inflammatory diseases (rheumatoid arthritis, inflammatory bowel disease, pulmonary fibrosis, and atherosclerosis) show markedly decreased uptake of (99m)Tc-EC20 in inflamed lesions upon initiation of successful therapies, but no decrease in uptake upon administration of ineffective therapies, in both cases long before changes in clinical symptoms can be detected. This predictive capability should reduce costs and minimize morbidities associated with failed autoimmune/inflammatory disease therapies.
    MeSH term(s) Animals ; Anti-Inflammatory Agents/pharmacology ; Anti-Inflammatory Agents/therapeutic use ; Arthritis, Experimental/drug therapy ; Atherosclerosis/drug therapy ; Autoimmune Diseases/drug therapy ; Colitis, Ulcerative/drug therapy ; Disease Models, Animal ; Female ; Flow Cytometry ; Folate Receptors, GPI-Anchored/drug effects ; Immunologic Factors/pharmacology ; Immunologic Factors/therapeutic use ; Inflammation/drug therapy ; Macrophages/drug effects ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Inbred DBA ; Organotechnetium Compounds/pharmacology ; Pulmonary Fibrosis/drug therapy ; Treatment Outcome
    Chemical Substances Anti-Inflammatory Agents ; Folate Receptors, GPI-Anchored ; Immunologic Factors ; Organotechnetium Compounds ; technetium 99m EC20 folate peptide
    Language English
    Publishing date 2015-10-05
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2138405-8
    ISSN 1543-8392 ; 1543-8384
    ISSN (online) 1543-8392
    ISSN 1543-8384
    DOI 10.1021/acs.molpharmaceut.5b00134
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Virus-Receptor Interactions of Glycosylated SARS-CoV-2 Spike and Human ACE2 Receptor

    Zhao, Peng / Praissman, Jeremy L / Grant, Oliver C / Cai, Yongfei / Xiao, Tianshu / Rosenbalm, Katelyn E / Aoki, Kazuhiro / Kellman, Benjamin P / Bridger, Robert / Barouch, Dan H / Brindley, Melinda A / Lewis, Nathan E / Tiemeyer, Michael / Chen, Bing / Woods, Robert J / Wells, Lance

    bioRxiv

    Abstract: The current COVID-19 pandemic is caused by the SARS-CoV-2 betacoronavirus, which utilizes its highly glycosylated trimeric Spike protein to bind to the cell surface receptor ACE2 glycoprotein and facilitate host cell entry. We utilized glycomics-informed ...

    Abstract The current COVID-19 pandemic is caused by the SARS-CoV-2 betacoronavirus, which utilizes its highly glycosylated trimeric Spike protein to bind to the cell surface receptor ACE2 glycoprotein and facilitate host cell entry. We utilized glycomics-informed glycoproteomics to characterize site-specific microheterogeneity of glycosylation for a recombinant trimer spike mimetic immunogen and for a soluble version of human ACE2. We combined this information with bioinformatic analyses of natural variants and with existing 3D-structures of both glycoproteins to generate molecular dynamic simulations of each glycoprotein alone and interacting with one another. Our results highlight roles for glycans in sterically masking polypeptide epitopes and directly modulating Spike-ACE2 interactions. Furthermore, our results illustrate the impact of viral evolution and divergence on Spike glycosylation, as well as the influence of natural variants on ACE2 receptor glycosylation that, taken together, can facilitate immunogen design to achieve antibody neutralization and inform therapeutic strategies to inhibit viral infection.
    Keywords covid19
    Language English
    Publishing date 2020-06-26
    Publisher Cold Spring Harbor Laboratory
    Document type Article ; Online
    DOI 10.1101/2020.06.25.172403
    Database COVID19

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  10. Article: Virus-Receptor Interactions of Glycosylated SARS-CoV-2 Spike and Human ACE2 Receptor

    Zhao, Peng / Praissman, Jeremy L / Grant, Oliver C / Cai, Yongfei / Xiao, Tianshu / Rosenbalm, Katelyn E / Aoki, Kazuhiro / Kellman, Benjamin P / Bridger, Robert / Barouch, Dan H / Brindley, Melinda A / Lewis, Nathan E / Tiemeyer, Michael / Chen, Bing / Woods, Robert J / Wells, Lance

    Cell Host Microbe

    Abstract: The SARS-CoV-2 betacoronavirus uses its highly glycosylated trimeric Spike protein to bind to the cell surface receptor angiotensin converting enzyme 2 (ACE2) glycoprotein and facilitate host cell entry. We utilized glycomics-informed glycoproteomics to ... ...

    Abstract The SARS-CoV-2 betacoronavirus uses its highly glycosylated trimeric Spike protein to bind to the cell surface receptor angiotensin converting enzyme 2 (ACE2) glycoprotein and facilitate host cell entry. We utilized glycomics-informed glycoproteomics to characterize site-specific microheterogeneity of glycosylation for a recombinant trimer Spike mimetic immunogen and for a soluble version of human ACE2. We combined this information with bioinformatics analyses of natural variants and with existing 3D structures of both glycoproteins to generate molecular dynamics simulations of each glycoprotein both alone and interacting with one another. Our results highlight roles for glycans in sterically masking polypeptide epitopes and directly modulating Spike-ACE2 interactions. Furthermore, our results illustrate the impact of viral evolution and divergence on Spike glycosylation, as well as the influence of natural variants on ACE2 receptor glycosylation. Taken together, these data can facilitate immunogen design to achieve antibody neutralization and inform therapeutic strategies to inhibit viral infection.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #741138
    Database COVID19

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