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Copyright: ©Author(s) 2026.
World J Gastrointest Endosc. Aug 16, 2026; 18(8): 118718
Published online Aug 16, 2026. doi: 10.4253/wjge.118718
Table 2 Two-signal T-cell immunologic activation
Signal
Component
Normal state
Disease onset
Signal 1DGP-HLA complex on APCPresent, below thresholdHighly expressed, strongly bound
Signal 2Co-stimulation, loss of regulationTregs dominant, T-cells anergicTregs suppressed, cytokines upregulated


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