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  • Perturbations in adhesion molecules and receptors in moderate versus severe Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME) patients

    Author(s)
    Hardcastle, Sharni Lee
    Brenu, Ekua
    Johnston, Samantha
    Nguyen, Thao
    Huth, Teilah Kathryn
    Wong, N.
    Hawthorne, A.
    Ramos, Sandra Bahia
    Staines, Don
    Marshall-Gradisnik, Sonya
    Griffith University Author(s)
    Staines, Don R.
    Hardcastle, Sharni L.
    Huth, Teilah K.
    Ramos, Sandra B.
    Marshall-Gradisnik, Sonya M.
    Johnston, Samantha
    Brenu, Ekua
    Nguyen, Thao
    Year published
    2014
    Metadata
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    Abstract
    Objective: Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME) is a debilitating illness with no known cause. Functional and phenotypic immunological alterations may be playing a role in the illness pathomechanism as immune dysfunction is common in CFS/ME. Studies have also inferred that this immune dysfunction may be further jeopardised in severe CFS/ME patients. The purpose of this study was to provide an analysis of natural killer (NK) and CD4+ T cell receptors in CFS/ME patients who were moderately affected by symptoms compared to those who were severe. Methods: The 1994 Fukuda criteria for CFS/ME were used to ...
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    Objective: Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME) is a debilitating illness with no known cause. Functional and phenotypic immunological alterations may be playing a role in the illness pathomechanism as immune dysfunction is common in CFS/ME. Studies have also inferred that this immune dysfunction may be further jeopardised in severe CFS/ME patients. The purpose of this study was to provide an analysis of natural killer (NK) and CD4+ T cell receptors in CFS/ME patients who were moderately affected by symptoms compared to those who were severe. Methods: The 1994 Fukuda criteria for CFS/ME were used to confirm CFS/ME participants. Participants were age and sex matched into the groups of healthy controls (n=18), moderate (n=15) and severe (n=12) CFS/ME patients. Flow cytometry was used to examine NK cell adhesion molecules and CD4+ T cell receptors on the four main phenotypes of each cell. Results: Moderate CFS/ME patients had reduced LAG3 and KLRG1 in CD4+ T cells and reduced CD2 expression in NK cells compared to severe CFS/ME patients. Severe CFS/ME patients also expressed increased CD18+/CD11c- and reduced CD18+/CD11a- in CD56dimCD16- NK cells. Conclusion: NK cytotoxic activity is the result of NK and T cell receptor interactions, with alterations in CFS/ME potentially leading to a dysregulation of target cell lysis and receptor regulation in patients. This study also highlights the importance of assessing symptom severity in CFS/ME patients in both clinical and research settings. Key Words: Chronic Fatigue Syndrome, severity, Natural Killer Cell, receptors, CD4+ T cell, adhesion
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    Conference Title
    Perturbations in adhesion molecules and receptors in moderate versus severe Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME) patients
    Publisher URI
    http://www.immunology.org.au/events/asi-2014/
    Subject
    Cellular Immunology
    Publication URI
    http://hdl.handle.net/10072/68048
    Collection
    • Conference outputs

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