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  • Title: Diagnostic and prognostic value of the terminal deoxynucleotidyl transferase (TdT) activity in treating the blastic phase (bp) of chronic granulocytic leukaemia (CGL).
    Author: Rudzka E, Hołowiecki J, Bartnikowa W, Krawczyk M, Duraj M, Jarczok K, Hołowiecka B, Suhs M.
    Journal: Folia Haematol Int Mag Klin Morphol Blutforsch; 1985; 112(6):864-71. PubMed ID: 2419215.
    Abstract:
    The blastic cell phenotypes of 26 cases of CGL in blastic phase were estimated and the patients were treated with different schemes. The following methods of typisation of the blast cells were used: cytochemical stainings (POX, Sudan B, PAS, nonspecific esterase), estimation of TdT activity, and in 11 patients the testing with monoclonal antibodies of VI series. Using these methods 10 patients (38%) with lymphoid form of the blastic phase, 11 (43%) with the myeloid type and 5 patients (19%) with undifferentiated type were diagnosed. In the group of lymphoblastic type a longer survival time and complete remissions were observed. High TdT activity in blastic cells did correspond with favourable response to Vincristin and Prednison. The introduction of TdT assessment into the diagnosis of CGL allows the cells to be classified more precisely, thus helping in defining the prognosis and in the choice of treatment programme.
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