For instance, kallikrein genes KLK5, KLK6 and KLK7 were downregulated in HPV16+ tumours and co-expressed with two overlapping antisense transcripts: CTB-147C22.8 and CTB147C22-9, as well as KLK10 with its antisense CTC-518B2.12. Here, KLK5 is linked to neoplasm.