Line10肝癌腹水上清的免疫抑制作用

本文研究指出，Ｌｉｎｅ１０肝癌腹水上清具有一定的免疫抑制作用，可致巨噬细胞形态改变并降低其吞噬功能，还可使ＢＡＬＢ／ｃ小鼠的白细胞数量下降。应用Ｏｕｃｈｔｅｒｌｏｎｙ法证明Ｌｉｎｅ１０肝癌腹水上清中存在ｌｉｎｅ１０肝癌细胞的抗原成分。     

Serum Creatine Kinase Isoenzymes in Patients with Advanced Malignant Disease

ABSTRACT Serum creatine kinase (CK) B subunit (CK-B) activity, as estimated by the enzymatic anti-M immunoinhibition method, and the CK isoenzyme pattern after agarose gel electrophoresis, were studied in 28 patients with advanced, untreated malignant disease. CK-B was above the decision limit, i.e. the discrimination limit used in the diagnosis of acute myocardial infarction (AMI), in 14 patients (50%). Electrophoresis demonstrated, besides CK-MM, an atypical, cathodically migrating CK band in 10 of these patients. This band may represent mitochondrial CK. The CK-BB isoenzyme was detected in 9 and CK-MB in 3 subjects. Histopathologic findings indicated that the occurrence of these isoenzymes was related to tumour burden and the overall severity of the disease. Survival among patients with CK-B elevation was shorter than among other patients. The present findings are relevant to the enzyme diagnosis of AMI and of potential significance for the evaluation of patients with known or suspected malignant tumours.     

免疫抑制法测定胰淀粉酶试剂的校正公式探讨

目的了解胰淀粉酶测定的假阳性问题。方法对免疫抑制法测定胰淀粉酶试剂盒中的单克隆抗体抑制唾液淀粉酶的能力进行系列检测。结果该单克隆抗体对唾液淀粉酶的抑制率为91．7％，并推导出胰淀粉酶的校正公式。结论用免疫抑制法测定胰淀粉酶结果必须加以校正，否则就会出现AMYp的假阳性。