“…IP-10 may be released by infected alveolar macrophages promoting the migration of Th1 cells to the site of infection (Kaufmann and Dorhoi, 2013;Lindestam Arlehamn et al, 2013;Moguche et al, 2017;O'Garra et al, 2013;Saha et al, 2013) through binding to CXCR3 expressed on T cells. Moreover, IP-10 is increased in plasma and urine of active TB patients (Goletti et al, 2010a;Goletti et al, 2010b;Vanini et al, 2012) and decreases after efficacious therapy (Azzurri et al, 2005;Chegou et al, 2013;Cannas et al, 2010), correlates with risk of progression to disease and TB disease severity (Azzurri et al, 2005;Petrone et al, 2018;Riou et al, 2012) and is easily detected as an inflammatory marker in both adults and children (Petrone et al, 2015;Petrone et al, 2016;Santos et al, 2018). Importantly, IP-10 is a key player in trained immunity, a protection phenomenon dependent on epigenetic modifications of monocytes (Joosten et al, 2018).…”