TNF and COVID-19: Moreover, IL-26 is a neutrophil-mobilizing cytokine that can also bind and enhance the pro-inflammatory potential of extracellular DNA (4, 40, 41), and we have previously reported in a small pilot study that the plasma concentration of IL-26 correlates with several markers of hyperinflammation and tissue damage such as IL-8, TNFα, and lactate dehydrogenase (LDH) in patients with acute COVID-19 (18).