I9 102 A voltage-activated inward-rectifying K + conductance (IK,) appears in human promyelocytic leukemia (HL-60) cells during phorbol ester-induced differentiation into macrophages. This conductance was detected in the cells 24 hours after exposure to phorbol-12-myristate-13-acetate (PMA), as the
Elevation of a potassium current in differentiating human leukemic (HL-60) cells
β Scribed by Steven J. Wieland; Robin H. Chou; Thelma A. Chen
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 432 KB
- Volume
- 132
- Category
- Article
- ISSN
- 0021-9541
No coin nor oath required. For personal study only.
β¦ Synopsis
Human promyelocytic leukemia (HL-60) cells display a novel voltage-dependent outward current under voltage clamp. This current is present at low levels in the proliferative state and in granulocytes derived from HL-60 cells which were induced to differentiate with retinoic acid. It is elevated in macrophages derived from HL-60 cells after exposure to phorbol-12-myristate-13acetate (PMA). The current is carried primarily by K + , is blocked by Cs+ and by increased intracellular concentrations of CI-. From a holding potential of -80 mV, significant activation required depolarization to + 20 mV membrane
π SIMILAR VOLUMES
## Abstract More than 80% of cells from a human promyelocytic leukemic cell line (HLβ60) possess the capacity for selfβrenewal as evidenced by their ability to form large primary colonies in semisolid medium and the presence within these colonies of cells capable of subsequent colony formation. Col
## Abstract When grown in medium containing 5 mM potassium and 140 mM sodium, HLβ60, a human promyelocytic cell line, maintained a steadyβstate intracellular K^+^ concentration of 145 mmol/L cells and a steadyβstate intracellular Na^+^ concentration of 30 mmol/L cells. Nearly 90% of the unidirectio
The influence of interferential current (IFC) on the release of four cytokines was investigated. IFC is an amplitude-modulated 4 kHz current used in therapeutic applications. Human promyelocytes (HL-60) were differentiated to monocytes/macrophages by treatment with calcitriol. Release of tumor necro
When cultured in Mg restricted medium, human leukemic HL-60 cells develop morphological and functional granulocytic differentiation. In 0.03 mM Mg, cells display the distinctive features of differentiation, without appreciable inhibition of proliferation. In 0.01 mM Mg, cells show terminal different
Based on solubility properties, the human myeloid cell nuclear differentiation antigen exists as at least two distinct populations. Most is easily extracted from isolated nuclei in 0.35 M NaCI, while 20 percent resists such treatment. Compared to undigested nuclei, both the amount of myeloid cell nu