“…It is conceivable that the immunoreactive material is released into the general circulation where it may be implicated in the pathogenesis of paraneoplastic syndromes. Previously, NTLI has been shown to be present in endocrine pancreatic tumours (Blackburn et al, 1980;Feurle et al, 1981;Gutniak et al, 1980;Theodorsson-Norheim et al, 1983) and it also was found in human small cell lung carcinomas (Wood et al, 1981(Wood et al, , 1983. At present, the only cell lines known to produce NTLI have been derived from a rat medullary carcinoma of the thyroid and a rat phaeochromocytoma (Tischler et al, 1982;Zeytinoglu et al, 1980).…”