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  1. Article ; Online: Antibody Responses in COVID-19: A Review.

    Chvatal-Medina, Mateo / Mendez-Cortina, Yorjagis / Patiño, Pablo J / Velilla, Paula A / Rugeles, Maria T

    Frontiers in immunology

    2021  Volume 12, Page(s) 633184

    Abstract: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continues to spread worldwide as a severe pandemic. Although its seroprevalence is highly variable among territories, it has been reported at around 10%, but higher in health workers. ... ...

    Abstract The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continues to spread worldwide as a severe pandemic. Although its seroprevalence is highly variable among territories, it has been reported at around 10%, but higher in health workers. Evidence regarding cross-neutralizing response between SARS-CoV and SARS-CoV-2 is still controversial. However, other previous coronaviruses may interfere with SARS-CoV-2 infection, since they are phylogenetically related and share the same target receptor. Further, the seroconversion of IgM and IgG occurs at around 12 days post onset of symptoms and most patients have neutralizing titers on days 14-20, with great titer variability. Neutralizing antibodies correlate positively with age, male sex, and severity of the disease. Moreover, the use of convalescent plasma has shown controversial results in terms of safety and efficacy, and due to the variable immune response among individuals, measuring antibody titers before transfusion is mostly required. Similarly, cellular immunity seems to be crucial in the resolution of the infection, as SARS-CoV-2-specific CD4+ and CD8+ T cells circulate to some extent in recovered patients. Of note, the duration of the antibody response has not been well established yet.
    MeSH term(s) Antibodies, Neutralizing/blood ; Antibodies, Viral/blood ; CD4-Positive T-Lymphocytes/immunology ; CD8-Positive T-Lymphocytes/immunology ; COVID-19/immunology ; COVID-19/therapy ; Female ; Humans ; Immunization, Passive/methods ; Immunoglobulin G/blood ; Immunoglobulin M/blood ; Male ; Severe acute respiratory syndrome-related coronavirus/immunology ; SARS-CoV-2/immunology ; Seroconversion ; Seroepidemiologic Studies ; Severity of Illness Index ; COVID-19 Serotherapy
    Chemical Substances Antibodies, Neutralizing ; Antibodies, Viral ; Immunoglobulin G ; Immunoglobulin M
    Language English
    Publishing date 2021-04-15
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2021.633184
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Biological sex and age-related differences shape the antiviral response to SARS-CoV-2 infection

    Montaño Mendoza, Vicky Margarita / Mendez Cortina, Yorjagis Andres / Rodríguez-Perea, Ana Lucía / Fernandez, Geysson Javier / Rugeles, María Teresa / Velilla Hernandez, Paula A. / Cardona Maya, Walter D.

    Heliyon. 2023 Jan., v. 9, no. 1 p.e13045-

    2023  

    Abstract: For the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, clinical manifestations are broad and highly heterogeneous for both sexes. We aimed to determine how biological sex and age impact immune gene expression, particularly ... ...

    Abstract For the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, clinical manifestations are broad and highly heterogeneous for both sexes. We aimed to determine how biological sex and age impact immune gene expression, particularly influencing the humoral neutralizing antibody (NAb) response and the cytokine production in coronavirus disease 2019 (COVID-19) subjects. The immune gene expression, according to biological sex and age, was assessed using the genome wide expression profile of blood proteins from healthy individuals using the Genotype Tissue Expression (GTEx) database. Moreover, anti-SARS-CoV-2 neutralizing antibody titers and cytokine levels were determined in blood samples from 141 COVID-19 individuals from Medellín, Colombia. Among subjects with COVID-19, males had statistically significantly higher median NAb titers and serum concentrations of interleukin-6 and CC chemokine ligand 3 than females. Overall, our findings point out a more robust innate immune response in women that could help recognize and restrain the virus faster than in men.
    Keywords COVID-19 infection ; Severe acute respiratory syndrome coronavirus 2 ; antibodies ; blood serum ; chemokines ; databases ; gene expression ; genome ; genotype ; innate immunity ; interleukin-6 ; ligands ; viruses ; Colombia ; Gene ; SARS-CoV-2 ; Immunology ; Male ; Virus ; Sex
    Language English
    Dates of publication 2023-01
    Publishing place Elsevier Ltd
    Document type Article ; Online
    Note Use and reproduction
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e13045
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Biological sex and age-related differences shape the antiviral response to SARS-CoV-2 infection.

    Montaño Mendoza, Vicky Margarita / Mendez Cortina, Yorjagis Andres / Rodríguez-Perea, Ana Lucía / Fernandez, Geysson Javier / Rugeles, María Teresa / Velilla Hernandez, Paula A / Cardona Maya, Walter D

    Heliyon

    2023  Volume 9, Issue 1, Page(s) e13045

    Abstract: For the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, clinical manifestations are broad and highly heterogeneous for both sexes. We aimed to determine how biological sex and age impact immune gene expression, particularly ... ...

    Abstract For the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, clinical manifestations are broad and highly heterogeneous for both sexes. We aimed to determine how biological sex and age impact immune gene expression, particularly influencing the humoral neutralizing antibody (NAb) response and the cytokine production in coronavirus disease 2019 (COVID-19) subjects. The immune gene expression, according to biological sex and age, was assessed using the genome wide expression profile of blood proteins from healthy individuals using the Genotype Tissue Expression (GTEx) database. Moreover, anti-SARS-CoV-2 neutralizing antibody titers and cytokine levels were determined in blood samples from 141 COVID-19 individuals from Medellín, Colombia. Among subjects with COVID-19, males had statistically significantly higher median NAb titers and serum concentrations of interleukin-6 and CC chemokine ligand 3 than females. Overall, our findings point out a more robust innate immune response in women that could help recognize and restrain the virus faster than in men.
    Language English
    Publishing date 2023-01-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e13045
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Dynamics of humoral immune response in SARS-CoV-2 infected individuals with different clinical stages.

    Mendez-Cortina, Yorjagis / Rodriguez-Perea, Ana Lucía / Chvatal-Medina, Mateo / Lopera, Tulio Jose / Alvarez-Mesa, Natalia / Rodas-Marín, Jan Karlo / Moncada, Diana Carolina / Rugeles, Maria Teresa / Velilla, Paula Andrea

    Frontiers in immunology

    2022  Volume 13, Page(s) 1007068

    Abstract: Background: The COVID-19 pandemic remains a global health problem. As in other viral infections, the humoral immune response against SARS-CoV-2 is thought to be crucial for controlling the infection. However, the dynamic of B cells in the clinical ... ...

    Abstract Background: The COVID-19 pandemic remains a global health problem. As in other viral infections, the humoral immune response against SARS-CoV-2 is thought to be crucial for controlling the infection. However, the dynamic of B cells in the clinical spectrum of this disease is still controversial. This study aimed to characterize B cell subsets and neutralizing responses in COVID-19 patients according to disease severity through a one-month follow-up.
    Methods: A cohort of 71 individuals with SARS-CoV-2 infection confirmed by RT-PCR were recruited and classified into four groups: i) asymptomatic; ii) symptomatic outpatients; iii) hospitalized in ward, and iv) intensive care unit patients (ICU). Samples were taken at days 0 (inclusion to the study), 7 and 30. B cell subsets and neutralizing antibodies were assessed using multiparametric flow cytometry and plaque reduction neutralization, respectively.
    Results: Older age, male gender and body mass index over 25 were common factors among hospitalized and ICU patients, compared to those with milder clinical presentations. In addition, those requiring hospitalization had more comorbidities. A significant increase in the frequencies of CD19
    Conclusion: The humoral immune response is variable among SARS-CoV-2 infected people depending on the severity and time of clinical evolution. In severe COVID-19 patients, a higher plasmablast frequency and neutralizing antibody response were observed, suggesting that, despite having a robust humoral immunity, this response could be late, having a low impact on disease outcome.
    MeSH term(s) Humans ; Male ; SARS-CoV-2 ; Immunity, Humoral ; COVID-19 ; Pandemics ; Antibodies, Neutralizing
    Chemical Substances Antibodies, Neutralizing
    Language English
    Publishing date 2022-11-14
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2022.1007068
    Database MEDical Literature Analysis and Retrieval System OnLINE

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