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. 2020 Dec 21;21(24):9766. doi: 10.3390/ijms21249766

Figure 5.

Figure 5

Possible models of NKT cell-mediated mechanisms in periodontitis: The references and experimental study model is given in parentheses (human, animal, and in vitro). NK—natural killer cell; NKT—natural killer T cell; DC—dendritic cell; iNKT cell—invariant natural killer T cell; TH—T helper cell; TCR—T-cell receptor; KIR—killer cell immunoglobulin-like receptor; CRACC—CD2-like receptor-activating cytotoxic cell; NCR-1—natural cytotoxicity triggering receptor 1; IL—interleukin; TLR—Toll-like receptor; and CD—cluster of differentiation.