TAC1 and neoplasm: Decreased expression of SLN (Sarcolipin), TAC1 (Tachykinin Precursor 1), MYH8 (Myosin Heavy Chain 8), PGAM2 (Phosphoglycerate Mutase 2) and APOBEC2 (apolipoprotein-B mRNA-editing catalytic polypeptide 2) was observed in all tumours potentially leading to disruption of calcium homeostasis, signalling pathways, and sugar metabolism [54,55].