CXCR2 and neoplasm: This is, however, not unique because MIRTX, a complementary sequence of miR-29b-1-5p, is not detectable in human tissues, thus having less relevance as a biomarker, whereas it exerts a highly potent tumour-suppressive effect through inhibition of the NFkB signalling pathway by directly binding to the 3’-UTR of CXCR2 and PIK3R1 mRNA.20,50