A comprehensive study revealed CysLT1R expression in several pancreatic cancer cell lines (PA-TU-8988T, SUIT-2 and PANC1 cells, but not in MIAPaCa-2 cells); LTD4 promoted the proliferation of pancreatic cancer cells, whereas treatment with montelukast caused cell cycle arrest at G0/G1 phase without inducing apoptosis [62]. The gene discussed is CYSLTR1; the disease is pancreatic neoplasm.