In vitro study | In vitro, BIBR 1532 noncompetitively inhibited telomerase activity in a dose-dependent manner with an IC50 of 100 nM. BIBR 1532 has an antiproliferative effect on JVM13 leukemic cell line in a dose-dependent manner with an IC50 of 52 μm and on other leukemic cell lines, including Nalm-1, HL-60, and Jurkat had similar results. In addition, BIBR 1532 acts on acute myeloid leukemia (AML) and has an antiproliferative effect with an IC50 of 56 μm without affecting the proliferative capacity of normal hematopoietic stem cells. BIBR 1532 (2.5 μm) acts on MCF-7/WT and anti-Melphalan MCF-7/ml NR cell lines to reduce the ability to form colonies and shorten telomere length by inhibiting telomerase activity, and the induction of chemotherapy sensitization. BIBR 1532 has selective cytotoxicity against T-cell prolymphocytic leukemia (T-PLL) in a dose-dependent manner, and BIBR 1532 treated cells also showed nuclear concentration, and the formation of apoptotic bodies. In vitro, BIBR 1532 noncompetitively inhibited telomerase activity in a dose-dependent manner with an IC50 of 100 nM. BIBR 1532 has an antiproliferative effect on JVM13 leukemic cell line in a dose-dependent manner with an IC50 of 52 μm and on other leukemic cell lines, including Nalm-1, HL-60, and Jurkat had similar results. In addition, BIBR 1532 acts on acute myeloid leukemia (AML) and has an antiproliferative effect with an IC50 of 56 μm without affecting the proliferative capacity of normal hematopoietic stem cells. BIBR 1532 (2.5 μm) MCF-7/ML n BIBR 1532 against MCF-7/WT and anti-Melphalan on T-cell prolymphocytic leukemia (T-PLL) with selective cytotoxicity in a dose-dependent manner, BIBR 1532 treated cells also showed nuclear condensation and formation of apoptotic bodies. |