TSPO and colonic neoplasm: While such metabolic modulation might be relevant to certain TSPO over-expressing colon cancers (Katz et al., 1990; Maaser et al., 2005; Königsrainer et al., 2007), the precise mechanism of TSPO function in this context remains to be defined (Selvaraj and Stocco, 2015; Betlazar et al., 2020).