迄今已有不少报道,证明许多不同的生物学物质可用作为肿瘤免疫诊断的标志(tumour markers),其中尤以肽类为常见。另一方面,已知许多不同种类的肿瘤细胞可以异位性地产生降钙素(Calciton-in,CT)或抗原相关物质免疫反应性降钙素(Immunoreactive calc tonin,ICT)。本文意图用多种体外细胞系探讨所有的细胞系是否都能产生CT或ICT以及别的肿瘤标记,从而为肿瘤免疫诊断提供新的资料。实验采用了7个细胞系,其中4个结 So far there have been many reports that many different biological substances can be used as tumor biomarkers (tumour markers), of which peptides are common. On the other hand, it is known that many different types of tumor cells can produce a calciton-in (CT) or an immunoreactive calcitonin (ICT) ectopically. This article intends to use a variety of in vitro cell lines to investigate whether all cell lines can produce CT or ICT and other tumor markers, thus providing new information for tumor immunodiagnostics. The experiment used 7 cell lines, of which 4 knots