Risk of recurrence in surgically resected stage I adenocarcinoma of the lung: histopathologic and immunohistochemical analysis.
OBJECTIVE
Stage I adenocarcinoma of the lung is the most common type of lung cancer. A better understanding of the histopathology and molecular biology of lung cancer might improve the capability to predict the outcome for any individual patient. The purpose of this study was to evaluate several histopathologic and molecular markers in order to assess their prognostic value in stage I adenocarcinoma.


METHODS
Fifty-five patients at the Seoul National University Bundang Hospital were enrolled in the study. Histopathologic factors and molecular markers were selected.


RESULTS
Multivariate analysis demonstrated that necrosis, lymphatic vessel invasion, E-cadherin, p53, and Ki-67 emerged as independent prognostic factors of recurrence. When patients were grouped according to low or high risk according to the number of factors involved, the difference in disease-free survival between these groups was statistically significant.


CONCLUSIONS
In resected stage I adenocarcinoma, necrosis, lymphatic vessel invasion, E-cadherin, and p53 have been identified as independent predictors of disease-free survival.
Department of Thoracic and Cardiovascular Surgery, Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea.
Sukki
S
Cho
Sook-Whan
SW
Sung
Sanghoon
S
Jheon
Jin-Haeng
JH
Chung
D000230:Adenocarcinoma / Q000737:chemistry / Q000473:pathology*; D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis; D015820:Cadherins / Q000032:analysis*; D018572:Disease-Free Survival; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D019394:Ki-67 Antigen / Q000032:analysis*; D008175:Lung Neoplasms / Q000737:chemistry / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009364:Neoplasm Recurrence, Local / Q000737:chemistry / Q000473:pathology*; D011379:Prognosis; D016016:Proportional Hazards Models; D012008:Recurrence; D012306:Risk; D016159:Tumor Suppressor Protein p53 / Q000032:analysis*
D014408:Biomarkers, Tumor; D015820:Cadherins; D019394:Ki-67 Antigen; D016159:Tumor Suppressor Protein p53