Moreover, TSPO is overexpressed by macrophages at inflammatory and cancer sites (Hatori et al., 2012, 2015; Li et al., 2016; Zinnhardt et al., 2017), as well as by neutrophils that migrate into the liver after injection with cycloheximide (Hatori et al., 2014) or into the lungs after systemic injection of lipopolysaccharides (LPS) (Hatori et al., 2012). This evidence concerns the gene TSPO and cancer.