著者
早田 義博 加藤 治文 周 明智 立花 正徳 林 永信 田原 真 河内 堯 瀬尾 泰樹 雨宮 隆太
出版者
The Japanese Respiratory Society
雑誌
日本胸部疾患学会雑誌 (ISSN:03011542)
巻号頁・発行日
vol.15, no.11, pp.759-768, 1977-11-25 (Released:2010-02-23)
参考文献数
20

In order to examine the carcinogenetic process of squamous cell carcinoma of the lung, the authors observed chronologically the changes of the bronchial epithelium throughout the duration of the experiment which produced squamous cell carcinoma in dogs. The changes were observed cytologically, histologically and bronchofiber-scopically.At the bifurcation of the apical and cardiac bronchi of two adult beagles and four adult mongrels a single dose of 50mg 20-methylcholanthrene (20-MC) was injected by means of a special needle which we developed for both therapeutic and experimental use through a bronchifiberscope at seven day intervals. Proliferation of basal cells accompanied by atypical nuclei or nuclear fission appeared immediately after injection of 20-MC, and were replaced by metaplastic cells after one week. Mildly atypical squamous cell metaplasia occured after 1-4 weeks, and moderately atypical squamous cell metaplasia after 2-8 weeks in all dogs. Five to nine weeks after the commencement of the experiment severely atypical squamous cell metaplasia appeared in 4 dogs, and in 3 dogs carcinoma in situ between 8 and 14 weeks. Invasive carcinoma developed after 18-22 weeks in 3 dogs (2 beagles, 1 mongrel). Squamous cell metaplasia was thus recognized to be an important precursor of squamous cell carcinoma, and further research on DNA analysis performed throughout the experiment may provide further elucidation of the carcinogenetic process.
著者
服部 正次 池上 晴通 建石 竜平 早田 義博 船津 秀夫 大田 満夫 米山 武志 下里 幸雄 橋本 邦久 西村 穣 伊藤 元彦 村上 国男 早乙女 一男 佐藤 正弘 沢村 献児
出版者
日本肺癌学会
雑誌
肺癌 (ISSN:03869628)
巻号頁・発行日
vol.19, no.4, pp.361-370, 1979-12-25

最近5年間に手術をうけた肺腺淋393例の予後を検討し,また,術後Adjuvant chemorapyの効果をも比較検討した.組織亜型の如何を問わず,高分化,型腺癌および,臨床病期I期例;腋瘍径3cm未満,治癒切除をうけたものの予後が優れていた.乳頭型腺癌と腺管型腺癌では,分化度別にみても,5年生存率,50%生存率ともに有意差なく,今後他の観点からの詳細な亜型分類の必要がある.また,術後化学療法は,EX+MMC+5・FU治療群が良好な生存曲線を示した.