NCIt definition : A lung-selective inhibitor of the Janus associated-kinases (JAKs), with potential
immunomodulatory and anti-inflammatory activities. Upon administration via nebulized
inhalation, nezulcitinib inhibits the activity of the JAKs, thereby disrupting cytokine-induced
activation of JAK-STAT signaling pathways in the airways. This may inhibit the release
of pro-inflammatory cytokines and chemokines, reducing inflammatory responses and
preventing inflammation-induced damage. The Janus kinase family of non-receptor tyrosine
kinases, which includes tyrosine-protein kinase JAK1 (Janus kinase 1; JAK1), tyrosine-protein
kinase JAK2 (Janus kinase 2; JAK2), tyrosine-protein kinase JAK3 (Janus kinase 3;
JAK3) and non-receptor tyrosine-protein kinase TYK2 (tyrosine kinase 2), plays a key
role in cytokine signaling.;