A panel of tumour cell lines with neuroendocrine features comprising a rat exocrine pancreatic tumour (AR42J)33, human functioning pancreatic carcinoid (BON)34, human medulloblastoma (D341)35, human glioma (U87MG)36, two human neuroblastomas (SK-N-MC37, SK-N-BE(2)38) and an SSTR2 transfected human non-small cell lung cancer line (H1299-7)39 was initially examined for in vitro and in vivo expression of SSTR2 mRNA. The gene discussed is SSTR2; the disease is medulloblastoma.