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Title: Prognostic value of protein kinase C, proto-oncogene products and resistance-related proteins in newly diagnosed childhood acute lymphoblastic leukemia. Author: Volm M, Zintl F, Edler L, Sauerbrey A. Journal: Med Pediatr Oncol; 1997 Feb; 28(2):117-26. PubMed ID: 8986147. Abstract: In this investigation, untreated non-B-type acute lymphoblastic leukemia (ALL) of 104 children was analyzed using immunocytochemistry for expression of protein kinase C, proto-oncogene products (Fos, Jun, Ras) and resistance-related proteins (topoisomerase II, P-glycoprotein, glutathione S-transferase-pi, metallothionein, dihydrofolate-reductase, thymidylate-synthase). The aim of the analysis was to find out whether combining those factors with the most important clinical prognostic factor (blast cell count) can improve the prognostic value (relapse-free interval). Univariate analysis shows that protein kinase D (PKC), Fos, P-glycoprotein (P-170) and glutathione S-transferase-pi (GST-pi) are significant prognostic factors independent of blast cell count (PBC) for the relapse-free intervals of children with ALL. The presence of the proteins Fos, PKC, P-170 and GST-pi was not independent within the patient population. The multivariate analysis showed that in combination with PBC and PKC, both P-170 and GST-pi have only limited prognostic influence. Combining the factors PKC, Fos and GST-pi as a categorical variable showed that this variable is a strong prognostic factor in addition to PBC.[Abstract] [Full Text] [Related] [New Search]