Purpose: We investigated the association of effector memory (EM) CD8 T cell and CD4 T cell immunity with metabolic syndrome (MS).
Methods: Surface and intracellular staining of peripheral blood mononuclear cells was performed. Anti-interleukin-7 receptor-alpha (IL-7Rα) and CX3CR1 antibodies were used to stain the subsets of EM CD8 T cells, while anti-interferon-gamma (IFN-γ), interleukin-17 (IL-17), and forkhead box P3 (FOXP3) antibodies were used for CD4 T cell subsets.
Results: Of the 47 obese children, 11 were female. Children with MS had significantly higher levels of serum insulin (34.8±13.8 vs. 16.4±6.3 μU/mL, <0.001) and homeostasis model assessment of insulin resistance (8.9±4.1 vs. 3.9±1.5, <0.001) than children without MS. Children with MS revealed significantly higher frequencies of IL-7Rα CD8 T cells (60.1 ±19.1% vs. 48.4±11.5%, =0.047) and IL-7RαCX3CR1 CD8 T cells (53.8±20.1% vs. 41.5 ±11.9%, =0.036) than children without MS. As the serum triglyceride levels increased, the frequency of IL-7RαCX3CR1 and IL-7RαCX3CR1 CD8 T cells increased and decreased, respectively (r=0.335, =0.014 and r=-0.350, =0.010, respectively), in 47 children. However, no CD4 T cell subset parameters were significantly different between children with and without MS.
Conclusion: In obese children with MS, the changes in immunity due to changes in EM CD8 T cells might be related to the morbidity of obesity.
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| http://dx.doi.org/10.5223/pghn.2021.24.4.377 | DOI Listing |
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