The combination of type I IFN, TNF-α, and cell surface receptor engagement with dendritic cells enables NK cells to overcome immune evasion by dengue virus.
Daniel Say Liang Lim, Nobuyo Yawata, Kevin John Selva, Na Li, Chen Yu Tsai, Lai Han Yeong, Ka Hang Liong, Eng Eong Ooi, Mun Keat Chong, Mah Lee Ng, Yee Sin Leo, Makoto Yawata, Soon Boon Justin Wong
The Journal of Immunology | The American Association of Immunologists | Published : 2014
Clinical studies have suggested the importance of the NK cell response against dengue virus (DenV), an arboviral infection that afflicts >50 million individuals each year. However, a comprehensive understanding of the NK cell response against dengue-infected cells is lacking. To characterize cell-contact mechanisms and soluble factors that contribute to the antidengue response, primary human NK cells were cocultured with autologous DenV-infected monocyte-derived dendritic cells (DC). NK cells responded by cytokine production and the lysis of target cells. Notably, in the absence of significant monokine production by DenV-infected DC, it was the combination of type I IFNs and TNF-α produced b..View full abstract