نتایج جستجو برای: hl 60 cell
تعداد نتایج: 1947016 فیلتر نتایج به سال:
Myeloperoxidase (MPO) is a major protein present in myeloid cells and is used by these cells to help kill microbes. The human promyelocytic HL-60 line can be induced to differentiate to granulocytes or macrophagelike cells. Poly (A) containing RNA was isolated from HL-60 granulocytes, HL-60 macrophages, HL-60 blasts, and normal human granulocytes. The mRNA was translated in a reticulocyte lysat...
Promyelocytic leukemia HL-60 cells can be induced to differentiate into granulocytic cells by various agents including retinoic acid (RA), dimethyl sulfoxide, and 6-thioguanine (6-TG). Although the induced cells are no longer capable of proliferation, a few cells continue to divide in the presence of inducers, and these cells are resistant to terminal differentiation by these inducers (R. E. Ga...
Two human leukemia cell lines (Molt-4 and HL-60) have been used for establishing cells which exhibit a low level resistance to Adriamycin. Analysis of drug uptake patterns shows that the Molt-4 resistant cells are defective in the initial intracellular accumulation of drug. In contrast to Molt-4 the levels of drug which accumulate in the sensitive and resistant HL-60 cells during a 60-min incub...
Two human leukemia cell lines (Molt-4 and HL-60) have been used for establishing cells which exhibit a low level resistance to Adriamycin. Analysis of drug uptake patterns shows that the Molt-4 resistant cells are defective in the initial intracellular accumulation of drug. In contrast to Molt-4 the levels of drug which accumulate in the sensitive and resistant HL-60 cells during a 60-min incub...
We have previously purified a transcription factor, PO-B, whose DNA binding capacity is increased by dephosphorylation and which contributes significantly to the basal transcription of genes such as pro-opiomelanocortin (Wellstein A., et al., J. Biol. Chem., 266: 12234-12241, 1991). In the present study, we describe several new properties of PO-B which suggest that the function of this transcri...
Human acute myeloid leukemia (ML-1 and HL-60) cells grew continuously in the serum-free liquid medium supplemented with human transferrin and bovine insulin. Both ML-1 and HL-60 cells formed clusters and colonies in the serum-free agar medium supplemented with bovine serum albumin, human transferrin, cholesterol, and L-alpha-phosphatidylcholine. Medium conditioned by phytohemagglutinin-stimulat...
The anticancer potential of Cuscuta reflexa (whole plant extract), a holoparasitic plant collected from its host plant Euphorbia royleana was evaluated by testing its in vitro cytotoxicity and induction of cell death by apoptosis. Among three extracts (95% alcoholic, 50% hydro-alcoholic and aqueous extracts) and four fractions (n-hexane, chloroform, n-butanol and water) of alcoholic extract, th...
Plasma fibronectin (Fn) induces phagocytosis of C3b-opsonized sheep erythrocytes (EC3b) by human peripheral blood monocytes. However, Fn does not induce erythrophagocytosis of EC3b by human polymorphonuclear leukocytes (PMN), unless the PMN have been exposed to C5a or N-formyl-methionyl-leucyl-phenylalanine. Because of this difference, it is of great interest to examine Fn binding to cells that...
We have measured the forward mutation rate at the hypoxanthine Phosphoribosyltransferase (HPRT) gene of the human promyelocytic leukemia cell line III,-6(1 and have determined the molecular spectrum of spontaneous HPRT mutations in 45 independent 6-thioguanine-resistant HL-60 sublines. Four fluctuation tests using a total of 132 replicate 111,-60 cultures revealed a mean forward mutation rate o...
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