Clinical significance of circulating cancer cells in peripheral blood detected by reverse transcriptase-polymerase chain reaction in patients with breast cancer

The Tohoku Journal of Experimental Medicine
X Y AnM Ogawa

Abstract

Detection of breast cancer micrometastases based on specific genetic markers may provide useful information to justify appropriate therapeutic strategies. We examined the presence of a carcinoembryonic antigen (CEA) messenger RNA(mRNA) in the peripheral blood of 32 patients with varying stages of breast cancers by means of the reverse transcriptase-polymerase chain reaction (RT-PCR) assay prior to and after the curative operation. CEA mRNA were detected in the peripheral blood samples from 12 (38%) out of 32 breast cancer patients prior to surgery. Among 12 CEA mRNA-positive patients prior to surgery, 4 (33.3%) relapsed from breast cancer within 2 years after surgery. Moreover, CEA mRNA was detected in the peripheral blood samples obtained prior to surgery in 3 out of 11 patients (27.2%) with a stage I disease. One out of three of these patients had a relapse in lung. There were four patterns of CEA mRNA expression, ( +, + ), (+, -), (-, + ), and (-, -) in the pre- and post-operative blood samples. In 12 CEA mRNA-positive patients submitted to surgical resection of the primary tumor, persistence of CEA mRNA expression was observed in five patients (+, +) within a month after surgical treatment. Three out of these 5 patients (60...Continue Reading

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Citations

Jul 6, 2002·Critical Reviews in Oncology/hematology·Wen G JiangRobert E Mansel
Feb 2, 2012·International Journal of Breast Cancer·Jack W Rostas, Donna Lynn Dyess
Oct 24, 2007·Journal of Clinical Oncology : Official Journal of the American Society of Clinical Oncology·Lyndsay HarrisUNKNOWN American Society of Clinical Oncology
Apr 7, 2020·Journal of Clinical Laboratory Analysis·Cheng AnXixiong Kang

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