CCL20 and cancer: The association between autocrine and paracrine mechanism of CCL20 and patient’s prognosis has been reported in many cancer types (Rubie et al., 2010[23]; Coperchini et al., 2016[5]; Frick et al., 2016[6]; Kapur et al., 2016[9]; Marsigliante et al., 2016[16]; Wang et al., 2016[28]).