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  • Title: High TNF-alpha and low IL-2 producing T cells characterize active disease in Takayasu's arteritis.
    Author: Tripathy NK, Gupta PC, Nityanand S.
    Journal: Clin Immunol; 2006; 118(2-3):154-8. PubMed ID: 16337833.
    Abstract:
    We have investigated intracellular production by T cells and plasma levels of TNF-alpha, IL-2 and IFN-gamma in 12 active and 10 inactive Takayasu's arteritis (TA) patients and 12 healthy controls. The active TA compared to inactive TA and controls had higher TNF-alpha (52.7 +/- 22.3% vs. 32.9 +/- 14.2% and 35.2 +/- 14.5%, respectively; P = 0. 020), lower IL-2 (19.6 +/- 13.2% vs. 36.1 +/- 10.1% and 31.2 +/- 10.3%, respectively; P = 0.010) and comparable IFN-gamma (38.6 +/- 13.9% vs. 34.2 +/- 12.4% and 34.9 +/- 11.1%, respectively; P = 0.581) producing CD3+ T cells. There was no difference in the plasma levels of the cytokines between active TA, inactive TA and controls (TNF-alpha: 79.1 +/- 94.5 vs. 72.9 +/- 120.0 and 9.5 +/- 6.7 pg/ml, P = 0.110; IL-2: 4.3 +/- 4.8 vs. 6.6 +/- 4.7 and 8.6 +/- 4.5 pg/ml, P = 0.094 and IFN-gamma: 10.1 +/- 11.3 vs. 8.8 +/- 8.7 and 8.2 +/- 6.5 pg/ml, P = 0.871, respectively). The data show an important role of these high TNF-alpha and low IL-2 producing T cells in TA.
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