Its specific receptor is CCR7, which is expressed not only on mature DC cells, macrophages and T cells (Förster et al., 2008; Comerford et al., 2013), but also in many tumor cells, such as colorectal (Xu et al., 2018), lung (Zhang et al., 2017), breast (Müller et al., 2001), and ovarian (Cheng et al., 2014). Here, CCR7 is linked to neoplasm.