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    This study aimed to evaluate the immune profile of lean and overweight-obese COPD patients. Forty patients with moderate to very severe COPD were divided into lean group (n=20; aged 62.00±8.91years; BMI 22.26±1.65kg/m2) or overweight-obese group (n=20; aged 65.40±6.69years; BMI 29.19±3.55kg/m2). The cytokine profile (IL-2, IL-4, IL-6, IL-10, INF-γ, and TNF-α) was evaluated through the Cytometric Bead Array technique, and the expression of CD4, CD8, CD25, CD45ra, CD45ro, CD69, CD195(CCr5) and HLA-DR were evaluated in CD3+ T-cells. Overweight-obese COPD group had lower levels of IL-2 (p=0.01) and higher INF-γ levels (p=0.02) and IL-6 (p=0.003) than lean COPD. Lean COPD patients had higher CD25+ (p=0.01), CCr5 (p=0.04) and HLA-DR (p=0.007) expression on T cell surface compared to overweight-obese COPD participants. These changes are related to immune dysfunction of obesity, and excess of fat mass in COPD can be a key factor to low T-cells activation. Copyright © 2017 Elsevier B.V. All rights reserved.


    Alessandra Peres, Gilson P Dorneles, Alexandre S Dias, Priscila Vianna, José Artur B Chies, Mariane B Monteiro. T-cell profile and systemic cytokine levels in overweight-obese patients with moderate to very-severe COPD. Respiratory physiology & neurobiology. 2018 Jan;247:74-79

    PMID: 28963085

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