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  • Title: [Clinical evaluation of serum level of NCC-ST-439 as a new tumor marker for colorectal diseases--fluctuation of serum NCC-ST-439 in patients with colorectal cancers before and after surgery].
    Author: Sakurai Y, Kodaira S, Teramoto T, Sugano K, Abe O, Ohtake H, Iri H.
    Journal: Gan To Kagaku Ryoho; 1989 Sep; 16(9):3205-12. PubMed ID: 2782914.
    Abstract:
    Serum level of NCC-ST-439, a new tumor marker, was clinically evaluated in patients with benign and malignant colorectal diseases in comparison with serum CEA and CA 19-9. Fluctuation of serum levels of NCC-ST-439 in patients with colorectal cancers was especially studied. Serum level of NCC-ST-439 was determined by sandwich type NCC-ST-439 EIA kit, which was developed by Nippon Kayaku Co., Ltd., in 93 cases of primary colorectal cancers, 98 cases of recurrent colorectal cancers and 60 cases of benign colorectal diseases. Positive rate of serum NCC-ST-439 in patients with primary colorectal cancers was 8.6% in Dukes A cases, 14.3% in Dukes B cases, 37.5% in Dukes C cases and 78.9% in Dukes D cases. Positive rate in patients with recurrent colorectal cancers was 42.8%. On the other hand, false positive rate in patients with benign colorectal diseases was 5.0%, which was relatively low in comparison with serum CEA and CA 19-9. While serum NCC-ST-439 was well correlated with serum CEA and CA 19-9 in primary colorectal cancers, NCC-ST-439 value in benign colorectal diseases showed no correlation with serum CEA and CA 19-9. In patients with primary colorectal cancers, curative resection was applied for in 40 cases in which the value recovered to the normal range after resection. In contrast, all 8 cases, which received non-curative resection, showed the increase of serum NCC-ST-439 value. In cases of recurrent colorectal cancers, some cases, which responded against chemotherapy, obviously showed a decrease of NCC-ST-439 value. These facts indicated that serum level of NCC-ST-439 could monitor the clinical effects of surgical treatment, chemotherapy and radiation therapies and it could be used as a marker for colorectal cancers. In conclusion, determination of serum NCC-ST-439 value was clinically useful for the diagnosis and monitoring for patients with colorectal cancers as a new distinct tumor marker.
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