Abstract:
BACKGROUND:Large number of patients with colorectal liver metastasis show recurrent disease after curative surgical resection. Identification of these high-risk patients may guide therapeutic strategies. The aim of this study was to evaluate whether the presence of disseminated tumor cells in bone marrow from patients undergoing surgical resection of colorectal liver metastases can predict clinical outcome. METHODS:Sixty patients with colorectal liver metastases were planned for a curative resection between 2001 and 2007. All patients underwent bone marrow aspiration before surgery. Detection of tumor cells was performed using immunocytochemical staining for cytokeratin (CK-ICC) combined with automated microscopy or indirectly using reverse transcription-polymerase chain reaction (RT-PCR). RESULTS:Disseminated tumor cells were found in 15 of the 46 patients (33%) using CK-ICC and in 9 of 44 of the patients (20%) using RT-PCR. Patients with negative results for RT-PCR had a significant better disease-free survival after resection of their liver metastases (p = 0.02). This group also showed significant better overall survival (p = 0.002). CK-ICC did not predict a worse clinical outcome. CONCLUSIONS:The presence of disseminated tumor cells in bone marrow detected using RT-PCR did predict a worse clinical outcome. The presence of cells detected with CK-ICC did not correlate with poor prognosis.
journal_name
BMC Cancerjournal_title
BMC cancerauthors
Vogelaar FJ,Mesker WE,Rijken AM,van Pelt GW,van Leeuwen AM,Tanke HJ,Tollenaar RA,Liefers GJdoi
10.1186/1471-2407-10-153subject
Has Abstractpub_date
2010-04-20 00:00:00pages
153issn
1471-2407pii
1471-2407-10-153journal_volume
10pub_type
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