For therapeutic experiments, PC-10 cells (5 × 106) in HBSS were subcutaneously injected into 4-or 5-week-old female BALB/c-nu/nu (Charles River Laboratories). After 15 days of cell injection, PC-10 tumour-bearing mice were dosed orally with 50 mg/kg/day erlotinib (LKT Laboratories, Inc., Minnesota, America) for 3 weeks. Clopidogrel sulphate (LC Laboratories, Inc., Alabama, America) was dissolved in drinking water with 0.003% HCl (equal to orally dosed approximately 25 mg/kg/day) for 18 days. When designated treatments were completed, the animals were euthanized and tumours were resected. ChMS-1 antibody treatment was performed as previously described5 (link).
A549/Neo and A549/PDPN cells (5 × 106) in HBSS were subcutaneously injected into 4- or 5-week old female BALB/c-nu/nu (Charles River Laboratories). After 22 days of cell injections, the mice were euthanized and tumour weights were measured.
All animal procedures were performed using protocols approved by the Japanese Foundation for Cancer Research Animal Care and Use Committee in accordance with the relevant guidelines and regulations.