<原著>アミラーゼ産生肺癌の研究

Abstract

Biochemical, histological, electron-microscopical and immunohistochemical studies on amylase-producing lung cancer were carried out. The results are summarized as follows : 1) Only adenocarcinoma tissues showed high amylase activity. 2) When examined under electron microscope, zymogen granule-like structure were seen in the amylase-producing lung cancer cells. 3) Specific fluorescence for amylase was demonstrated in the cancer cells of amylase-producing lung cancer. 4) Specific fluorescence for amylase was also seen in the serous cells of the bronchial gland of adult and foetus. Certain cells in the peripheral area of foetal lung also showed the specific fluorescence. 5) Amylase-prodcing lung cancer may arise from cells in the bronchial gland and peripheral lung area. But the nature of the cells of the foetal peripheral lung which contain amylase must be investigated in future.