Relationship between apoptosis and immunohistochemical staining for proliferating cell nuclear antigen and Ki-67 in non-small cell lung cancer.
The relationship between apoptosis and cellular proliferative activity in human non-small cell lung cancer (25 cases) was investigated using the in situ DNA nick-end labeling method and immunohistochemistry for both proliferating cell nuclear antigen (PCNA) and Ki-67 antigen. Comparison of the distribution of Ki-67-positive cells to that of apoptotic cells shows an inverse correlation in semi-serial sections. The PCNA labeling rates were closely correlated with Ki-67 labeling rates in non-small cell lung cancer. It was concluded that the immunostainings of PCNA and Ki-67 were almost equally valuable for assessing the proliferative activity in paraffin-embedded tissue from non-small cell lung cancer and that apoptosis may be related with the cell cycle in this cancer.
Ishiwata
N
N
Hokushin General Hospital, Nagano-ken, Japan.
Jinn
Y
Y
Tsukada
Y
Y
Inase
N
N
Ichioka
M
M
Yoshizawa
Y
Y
D000368:Aged; D017209:Apoptosis; D002289:Carcinoma, Non-Small-Cell Lung / Q000737:chemistry* / Q000473:pathology; D002453:Cell Cycle; D002455:Cell Division; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D019394:Ki-67 Antigen / Q000032:analysis*; D008175:Lung Neoplasms / Q000737:chemistry* / Q000473:pathology; D008297:Male; D018809:Proliferating Cell Nuclear Antigen / Q000032:analysis*
D019394:Ki-67 Antigen; D018809:Proliferating Cell Nuclear Antigen