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  1. Article ; Online: Restoring immune tolerance in pemphigus vulgaris.

    Ahmed, A Razzaque / Kalesinskas, Mikole / Kaveri, Srini V

    Proceedings of the National Academy of Sciences of the United States of America

    2024  Volume 121, Issue 5, Page(s) e2317762121

    Abstract: Intravenous immunoglobulin (IVIg), a preparation of polyclonal serum IgG pooled from numerous blood donors, has been used for nearly three decades and is proving to be an efficient treatment for many autoimmune blistering diseases, including pemphigus ... ...

    Abstract Intravenous immunoglobulin (IVIg), a preparation of polyclonal serum IgG pooled from numerous blood donors, has been used for nearly three decades and is proving to be an efficient treatment for many autoimmune blistering diseases, including pemphigus vulgaris (PV). Despite its widespread use and therapeutic success, its mechanisms of action are not completely understood. Some of its anti-inflammatory and immunomodulatory actions have been studied. In this study, the authors present a twenty-year follow-up of 21 patients with clinical and immunopathological confirmed PV, treated with IVIg as monotherapy, according to an established published protocol. IVIg therapy produced long-term sustained, clinical, serological, and immunopathological remission. For 20 y, these patients received no drugs and experienced no disease. This observation suggests that there was the establishment of immune balance or restoration of immune regulation in these PV patients. Twelve (57%) patients experienced no relapse during follow-up. Six (29%) patients experienced a relapse due to acute stress or post-coronavirus infection and/or vaccination. Reinstitution of IVIg resulted in prompt sustained recovery. Three (14.2%) patients, in clinical and serological remission, died due to unrelated causes. No severe adverse effects from IVIg were documented in all 21 patients. The simultaneous or sequential anti-inflammatory and immunomodulatory effects of IVIg may have influenced the long-term clinical remission observed. This study provides a human prototype to examine the pathophysiology of autoimmunity and a model to study immune regulation and mechanisms that can facilitate restoring immune tolerance.
    MeSH term(s) Humans ; Pemphigus ; Immunoglobulins, Intravenous ; Immune Tolerance ; Autoimmune Diseases ; Anti-Inflammatory Agents
    Chemical Substances Immunoglobulins, Intravenous ; Anti-Inflammatory Agents
    Language English
    Publishing date 2024-01-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.2317762121
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Book: Natural antibodies

    Kaveri, Srini V / Bayry, Jagadeesh

    methods and protocols

    (Methods in molecular biology, ; 1643 ; Springer protocols)

    2017  

    Abstract: This volume looks at the role of natural antibodies in pathogen elimination, cell survival, inflammation, cancer, and autoimmunity. The chapters in this book cover numerous topics, such as isolation of natural antibodies; methods for separating natural ... ...

    Author's details edited by Srinivas V. Kaveri, Jagadeesh Bayry
    Series title Methods in molecular biology, ; 1643
    Springer protocols
    Abstract This volume looks at the role of natural antibodies in pathogen elimination, cell survival, inflammation, cancer, and autoimmunity. The chapters in this book cover numerous topics, such as isolation of natural antibodies; methods for separating natural antibodies from human plasma, saliva, breast milk, and gastrointestinal fluids; functional properties of natural antibodies such as anti-tumor cytocoxic activity, and hydrolysis and dissolution of their target antigens; their utility in serological diagnosis of microbial antigens; and the role of natural antibodies in inhibiting viral vectors in the absence of prior exposure to the virus. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Practical and thorough, Natural Antibodies: Methods and Protocols is a valuable resource for researchers and experts who are interested in further studies of natural antibodies.
    Keywords Immunoglobulins ; Natural immunity ; Immunoglobulins. ; Natural immunity. ; antibodies ; physiology
    Language English
    Size xi, 199 pages :, illustrations (some color) ;, 26 cm
    Document type Book
    ISBN 9781493971794 ; 1493971794 ; 9781493971800 ; 1493971808
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Kill 'Em All: Efgartigimod Immunotherapy for Autoimmune Diseases.

    Bayry, Jagadeesh / Kaveri, Srini V

    Trends in pharmacological sciences

    2018  Volume 39, Issue 11, Page(s) 919–922

    Abstract: Neonatal Fc receptors (FcRns) recycle IgGs by preventing their lysosome degradation. As this process also enhances half-life of pathogenic auto-IgG, inspired from the mechanisms of intravenous immunoglobulin, several inhibitors of IgG-FcRn interface have ...

    Abstract Neonatal Fc receptors (FcRns) recycle IgGs by preventing their lysosome degradation. As this process also enhances half-life of pathogenic auto-IgG, inspired from the mechanisms of intravenous immunoglobulin, several inhibitors of IgG-FcRn interface have been conceived for treating autoimmune diseases. Among them, the high-affinity FcRn-binding engineered Fc molecule efgartigimod has recently completed phase I clinical trial.
    MeSH term(s) Animals ; Autoimmune Diseases/therapy ; Histocompatibility Antigens Class I/immunology ; Humans ; Immunoglobulin G/immunology ; Immunotherapy ; Receptors, Fc/immunology
    Chemical Substances Histocompatibility Antigens Class I ; Immunoglobulin G ; Receptors, Fc ; Fc receptor, neonatal (TW3XAW0RCY)
    Language English
    Publishing date 2018-09-07
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 282846-7
    ISSN 1873-3735 ; 0165-6147
    ISSN (online) 1873-3735
    ISSN 0165-6147
    DOI 10.1016/j.tips.2018.08.004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Intravenous immunoglobulin immunotherapy for coronavirus disease-19 (COVID-19).

    Galeotti, Caroline / Kaveri, Srini V / Bayry, Jagadeesh

    Clinical & translational immunology

    2020  Volume 9, Issue 10, Page(s) e1198

    Abstract: Intravenous immunoglobulin (IVIG), a pooled normal IgG from several thousand healthy donors and one of the commonly used immunotherapeutic molecules for the management of autoimmune and inflammatory diseases, has been explored for the treatment of ... ...

    Abstract Intravenous immunoglobulin (IVIG), a pooled normal IgG from several thousand healthy donors and one of the commonly used immunotherapeutic molecules for the management of autoimmune and inflammatory diseases, has been explored for the treatment of coronavirus disease-19 (COVID-19). Although placebo-controlled, double-blind randomised clinical trials are lacking, current data from either retrospective, case series or open-label randomised controlled trials provide an indicator that IVIG immunotherapy could benefit severe and critically ill COVID-19 patients. See alsoShao et al.
    Keywords covid19
    Language English
    Publishing date 2020-10-16
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2694482-0
    ISSN 2050-0068
    ISSN 2050-0068
    DOI 10.1002/cti2.1198
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Vaccine-induced immune thrombotic thrombocytopenia: Consider IVIG batch in the treatment.

    Karnam, Anupama / Lacroix-Desmazes, Sébastien / Kaveri, Srini V / Bayry, Jagadeesh

    Journal of thrombosis and haemostasis : JTH

    2021  Volume 19, Issue 7, Page(s) 1838–1839

    MeSH term(s) Humans ; Immunoglobulins, Intravenous/adverse effects ; Purpura, Thrombocytopenic, Idiopathic/chemically induced ; Purpura, Thrombocytopenic, Idiopathic/diagnosis ; Purpura, Thrombocytopenic, Idiopathic/drug therapy ; Thrombocytopenia ; Thrombosis ; Vaccines
    Chemical Substances Immunoglobulins, Intravenous ; Vaccines
    Language English
    Publishing date 2021-04-30
    Publishing country England
    Document type Letter ; Research Support, Non-U.S. Gov't
    ZDB-ID 2112661-6
    ISSN 1538-7836 ; 1538-7933
    ISSN (online) 1538-7836
    ISSN 1538-7933
    DOI 10.1111/jth.15361
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Boolean analysis of the transcriptomic data to identify novel biomarkers of IVIG response.

    Rambabu, Naresh / Mathew, Mano Joseph / Kaveri, Srini V / Bayry, Jagadeesh

    Autoimmunity reviews

    2021  Volume 20, Issue 7, Page(s) 102850

    Abstract: Intravenous immunoglobulin (IVIG) is used to treat several autoimmune and inflammatory diseases, but some patients are refractory to IVIG and require alternative treatments. Identifying a biomarker that could segregate IVIG responders from non-responders ...

    Abstract Intravenous immunoglobulin (IVIG) is used to treat several autoimmune and inflammatory diseases, but some patients are refractory to IVIG and require alternative treatments. Identifying a biomarker that could segregate IVIG responders from non-responders has been a subject of intense research. Unfortunately, previous transcriptomic studies aimed at addressing IVIG resistance have failed to predict a biomarker that could identify IVIG-non-responders. Therefore, we used a novel data mining technique on the publicly available transcriptomic data of Kawasaki disease (KD) patients treated with IVIG to identify potential biomarkers of IVIG response. By studying the boolean patterns hidden in the expression profiles of KD patients undergoing IVIG therapy, we have identified new metabolic pathways implicated in IVIG resistance in KD. These pathways could be used as biomarkers to segregate IVIG non-responders from responders prior to IVIG infusion. Also, boolean analysis of the transcriptomic data could be further extended to identify a universal biomarker that might predict IVIG response in other autoimmune diseases.
    MeSH term(s) Biomarkers ; Humans ; Immunoglobulins, Intravenous/therapeutic use ; Infant ; Mucocutaneous Lymph Node Syndrome/diagnosis ; Mucocutaneous Lymph Node Syndrome/drug therapy ; Mucocutaneous Lymph Node Syndrome/genetics ; Retrospective Studies ; Transcriptome
    Chemical Substances Biomarkers ; Immunoglobulins, Intravenous
    Language English
    Publishing date 2021-05-07
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 2144145-5
    ISSN 1873-0183 ; 1568-9972
    ISSN (online) 1873-0183
    ISSN 1568-9972
    DOI 10.1016/j.autrev.2021.102850
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Oxidized hemoglobin triggers polyreactivity and autoreactivity of human IgG via transfer of heme.

    Planchais, Cyril / Noe, Remi / Gilbert, Marie / Lecerf, Maxime / Kaveri, Srini V / Lacroix-Desmazes, Sébastien / Roumenina, Lubka T / Dimitrov, Jordan D

    Communications biology

    2023  Volume 6, Issue 1, Page(s) 168

    Abstract: Intravascular hemolysis occurs in diverse pathological conditions. Extracellular hemoglobin and heme have strong pro-oxidative and pro-inflammatory potentials that can contribute to the pathology of hemolytic diseases. However, many of the effects of ... ...

    Abstract Intravascular hemolysis occurs in diverse pathological conditions. Extracellular hemoglobin and heme have strong pro-oxidative and pro-inflammatory potentials that can contribute to the pathology of hemolytic diseases. However, many of the effects of extracellular hemoglobin and heme in hemolytic diseases are still not well understood. Here we demonstrate that oxidized hemoglobin (methemoglobin) can modify the antigen-binding characteristics of human immunoglobulins. Thus, incubation of polyclonal or some monoclonal human IgG in the presence of methemoglobin results in an appearance of binding reactivities towards distinct unrelated self-proteins, including the protein constituent of hemoglobin i.e., globin. We demonstrate that a transfer of heme from methemoglobin to IgG is indispensable for this acquisition of antibody polyreactivity. Our data also show that only oxidized form of hemoglobin have the capacity to induce polyreactivity of antibodies. Site-directed mutagenesis of a heme-sensitive human monoclonal IgG1 reveals details about the mechanism of methemoglobin-induced antigen-binding polyreactivity. Further here we assess the kinetics and thermodynamics of interaction of a heme-induced polyreactive human antibody with hemoglobin and myoglobin. Taken together presented data contribute to a better understanding of the functions of extracellular hemoglobin in the context of hemolytic diseases.
    MeSH term(s) Humans ; Heme/metabolism ; Methemoglobin/metabolism ; Hemoglobins/metabolism ; Immunoglobulin G ; Antibodies, Monoclonal ; Hemolysis
    Chemical Substances Heme (42VZT0U6YR) ; Methemoglobin (9008-37-1) ; Hemoglobins ; Immunoglobulin G ; Antibodies, Monoclonal
    Language English
    Publishing date 2023-02-11
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2399-3642
    ISSN (online) 2399-3642
    DOI 10.1038/s42003-023-04535-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Mécanismes d'action des immunoglobulines.

    Kaveri, Srini V

    Bulletin de l'Academie nationale de medecine

    2012  Volume 196, Issue 1, Page(s) 39–47; discussion 47–8

    Abstract: Despite the fact that IVIG is used for more than two decades in the treatment of a number of autoimmune and inflammatory conditions, the underlying molecular mechanisms that account for its beneficial effect have not been completely elucidated These ... ...

    Title translation Mechanisms of action of intravenous immunoglobulins.
    Abstract Despite the fact that IVIG is used for more than two decades in the treatment of a number of autoimmune and inflammatory conditions, the underlying molecular mechanisms that account for its beneficial effect have not been completely elucidated These mechanisms implicate both the constant (Fc) and the variable region (Fab')2 of the immunoglobulins. The interaction of lVIG with a large number of components of the immune system including Fc receptors, complement molecules, cytokines, B and T lymphocytes, neutrophils and NK cells, may explain at least in part their anti-inflammatory effects.
    MeSH term(s) Anti-Inflammatory Agents/pharmacology ; Autoimmune Diseases/drug therapy ; Cytokines/metabolism ; Humans ; Immunoglobulins, Intravenous/pharmacology ; T-Lymphocytes/metabolism
    Chemical Substances Anti-Inflammatory Agents ; Cytokines ; Immunoglobulins, Intravenous
    Language French
    Publishing date 2012-01
    Publishing country Netherlands
    Document type English Abstract ; Journal Article
    ZDB-ID 213227-8
    ISSN 0001-4079
    ISSN 0001-4079
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Intravenous immunoglobulin: exploiting the potential of natural antibodies.

    Kaveri, Srini V

    Autoimmunity reviews

    2012  Volume 11, Issue 11, Page(s) 792–794

    Abstract: Antibodies present in healthy conditions in the absence of deliberate immunization or infections are called natural antibodies. A significant proportion of natural antibody pool is believed to interact with self-antigens, and thus is called natural ... ...

    Abstract Antibodies present in healthy conditions in the absence of deliberate immunization or infections are called natural antibodies. A significant proportion of natural antibody pool is believed to interact with self-antigens, and thus is called natural autoantibodies. Natural autoantibodies belong to IgG, IgM and IgA subclasses, and are encoded by V(D)J genes in germline configuration and bind to self molecules with varying affinities. In addition to serving in first line defense mechanism, natural antibodies participate in the homeostasis of the immune system. Intravenous immunoglobulin (IVIg) is a therapeutic preparation that contains substantial amount of natural antibodies exclusively of IgG subclass. In addition to its role in protection against pathogens in primary and secondary immunodeficiency patients, IVIg exerts a number of immunoregulatory functions through its interaction with innate and adaptive immune system and thereby imposing immune homeostasis.
    MeSH term(s) Animals ; Antibodies/blood ; Antibodies/immunology ; Antibodies, Neutralizing/immunology ; Autoantibodies/blood ; Autoantibodies/immunology ; Autoantigens/immunology ; Humans ; Immune Tolerance/immunology ; Immunoglobulins, Intravenous/immunology ; Immunoglobulins, Intravenous/therapeutic use
    Chemical Substances Antibodies ; Antibodies, Neutralizing ; Autoantibodies ; Autoantigens ; Immunoglobulins, Intravenous
    Language English
    Publishing date 2012-09
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 2144145-5
    ISSN 1873-0183 ; 1568-9972
    ISSN (online) 1873-0183
    ISSN 1568-9972
    DOI 10.1016/j.autrev.2012.02.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Intravenous immunoglobulin immunotherapy for coronavirus disease-19 (COVID-19)

    Galeotti, Caroline / Kaveri, Srini V. / Bayry, Jagadeesh

    Clinical & Translational Immunology

    Abstract: Intravenous immunoglobulin (IVIG), a pooled normal IgG from several thousand healthy donors and one of the commonly used immunotherapeutic molecules for the management of autoimmune and inflammatory diseases, has been explored for the treatment of ... ...

    Abstract Intravenous immunoglobulin (IVIG), a pooled normal IgG from several thousand healthy donors and one of the commonly used immunotherapeutic molecules for the management of autoimmune and inflammatory diseases, has been explored for the treatment of coronavirus disease-19 (COVID-19) Although placebo-controlled, double-blind randomised clinical trials are lacking, current data from either retrospective, case series or open-label randomised controlled trials provide an indicator that IVIG immunotherapy could benefit severe and critically ill COVID-19 patients See alsoShao et al
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #866046
    Database COVID19

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