Evaluation of three E-rosette assays in melanoma patients |
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Authors: | E Ninger Dana Zemanová J Kovařík Ludmila Lauerová |
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Institution: | (1) Research Institute of Clinical and Experimental Oncology, lutý Kopec 7, 60200 Brno, Czechoslovakia |
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Abstract: | Summary The percentage of E-rosette-forming cells (E-RFC) was determined repeatedly in the peripheral blood of 43 patients with malignant melanoma. Three methods of E-rosette assaying were used: total E-rosette test, active E-rosette test, and 29° C E-rosette assay.Depressed E-RFC values were found in fewer assays than normal values. The mean values of E-RFC and the proportion of depressed E-RFC in patients in stage I did not differ from the values in healthy control persons whatever method of assay was used.The frequency of depressed E-RFC values was higher in advanced stages. Significant differences were demonstrated between stage I and stages II and III combined in the values for total and for active E-rosettes (P<0.01).The active E-rosette test and the 29° C E-rosette assay gave no more positive results (i.e., depressed E-RFC values) than the total E-rosette test in melanoma patients. |
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