✦ LIBER ✦

Immunocytological detection of micrometastatic cells: Comparative evaluation of findings in the peritoneal cavity and the bone marrow of gastric, colorectal and pancreatic cancer patients

✍ Scribed by Hartmul Juhl; Matthias Stritzel; Andreas Wroblewski; Doris Henne-Bruns; Bernd Kremer; Wolff Schmiegel; Michael Neumaier; Christoph Wagener; Hans-Wilhelm Schreiber; Holger Kalthoff

Publisher: John Wiley and Sons
Year: 1994
Tongue: French
Weight: 565 KB
Volume: 57
Category: Article
ISSN: 0020-7136
DOI: 10.1002/ijc.2910570307

No coin nor oath required. For personal study only.

✦ Synopsis

The prognosis of digestive cancers is poor mainly due to intraperitoneal relapse by cells which may have already been seeded at the time of surgery. Using immunocytology we investigated the peritoneal cavity and, as a comparison, the bone marrow of 147 patients with gastric, colorectal and pancreatic cancer for micrometastatic cells. Cytological samples from peritoneal cavity lavages and bone marrow aspirates were analyzed using monoclonal antibodies (MAbs) against tumorassociated antigens FAA) (CEA, CA-19-9, 17-I -A, C-54-0, Ra96) and compared to a MAb staining cytokeratins (KL-I). Patients with benign diseases served as controls. lntraperitoneal micrometastatic cells were detected in 27% of colorectal, 43% of gastric and 58% of pancreatic cancer patients. In the bone marrow, the corresponding data were 29% for colorectal, 25% for gastric and 58% for pancreatic cancer patients. Combined evaluation of both compartments increased the detection rate significantly (colorectal cancer: 40%. gastric cancer: 52%, pancreatic cancer: 72%). No unwarranted reactions were found in the control group. Combining 3 antibodies (CA-19-9, Ra96, C-54-0) enabled good detection for peritoneal cavity samples. In the bone marrow, the use of 2 antibodies (KL-I and CA-19-9) detected 94% of all positive samples, whereas KL-I and CA-19-9 stained approx. 70% of all positive samples in each case. The occurence of stained cells in the peritoneal cavity correlated with classical prognostic factors (TNM classification).

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