Furthermore, while all DGDG variants induced the production of the Th1 cytokine IFN-γ, only DGDG-2 and DGDG-3 triggered the release of the Th2 cytokine IL-13 (Figure 2C, middle and right graphs), a cytokine implicated in allergic inflammatory responses such as asthma. Here, IFNG is linked to asthma.