TY - JOUR
T1 - Diagnostic and prognostic value of peritoneal immunocytology in gastric cancer
AU - Benevolo, Maria
AU - Mottolese, Marcella
AU - Cosimelli, Maurizio
AU - Tedesco, Manfredo
AU - Giannarelli, Diana
AU - Vasselli, Stefania
AU - Carlini, Massimo
AU - Garofalo, Alfredo
AU - Natali, Pier Giorgio
PY - 1998/10
Y1 - 1998/10
N2 - Purpose: Among the clinical factors with a pivotal role in the prediction of outcome for patients with gastric cancer, intraperitoneal (IP) microscopic dissemination may represent an important cause of recurrences, even in the early stages of the disease. In this context, the cytologic examination of intraoperative peritoneal washings may be essential to identify metastatic free cells, although a number of false-negative cases may be encountered. Patients and Methods: To determine whether immunocytochemical (ICC) methods that used a panel of three monoclonal antibodies (MoAbs), B72.3, AR3, and BD5, directed to gastric cancer-associated antigens can improve peritoneal cytology by providing more accurate prognostic indications, we immunocytochemically and morphologically evaluated 144 peritoneal washings sampled from patients surgically treated for gastric cancer. Results: The ICC analysis allowed the identification of metastatic free peritoneal cells in 35% of the patients, with a 14% improvement over routine cytopathology (P <.0001). Furthermore, a 54-month survival analysis by Kaplan-Meier curves showed a statistically significant decrease in overall survival (OS) in patients with stages I through III disease with peritoneal microscopic disease detected morphologically and/or by ICC at the time of the primary surgery. Conclusion: Our data indicate that the use of a combination of selected MoAbs may allow the identification of cytologically false- negative cases that provide valuable prognostic information. This may be useful to stratify patients on more adequate therapeutic trials.
AB - Purpose: Among the clinical factors with a pivotal role in the prediction of outcome for patients with gastric cancer, intraperitoneal (IP) microscopic dissemination may represent an important cause of recurrences, even in the early stages of the disease. In this context, the cytologic examination of intraoperative peritoneal washings may be essential to identify metastatic free cells, although a number of false-negative cases may be encountered. Patients and Methods: To determine whether immunocytochemical (ICC) methods that used a panel of three monoclonal antibodies (MoAbs), B72.3, AR3, and BD5, directed to gastric cancer-associated antigens can improve peritoneal cytology by providing more accurate prognostic indications, we immunocytochemically and morphologically evaluated 144 peritoneal washings sampled from patients surgically treated for gastric cancer. Results: The ICC analysis allowed the identification of metastatic free peritoneal cells in 35% of the patients, with a 14% improvement over routine cytopathology (P <.0001). Furthermore, a 54-month survival analysis by Kaplan-Meier curves showed a statistically significant decrease in overall survival (OS) in patients with stages I through III disease with peritoneal microscopic disease detected morphologically and/or by ICC at the time of the primary surgery. Conclusion: Our data indicate that the use of a combination of selected MoAbs may allow the identification of cytologically false- negative cases that provide valuable prognostic information. This may be useful to stratify patients on more adequate therapeutic trials.
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M3 - Article
C2 - 9779720
AN - SCOPUS:0031759840
VL - 16
SP - 3406
EP - 3411
JO - Journal of Clinical Oncology
JF - Journal of Clinical Oncology
SN - 0732-183X
IS - 10
ER -