Can I read Characterization of Convergent Suppression by UCL-2077 (3-(Triphenylmethylaminomethyl)pyridine), Known to Inhibit Slow Afterhyperpolarization, of erg -Mediated Potassium Currents and Intermediate-Conductance Calcium-Activated Potassium Channels on EtoBox?

Characterization of Convergent Suppression by UCL-2077 (3-(Triphenylmethylaminomethyl)pyridine), Known to Inhibit Slow Afterhyperpolarization, of erg -Mediated Potassium Currents and Intermediate-Conductance Calcium-Activated Potassium Channels by Hsu, Hung-Te; Lo, Yi-Ching; Wu, Sheng-Nan is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Characterization of Convergent Suppression by UCL-2077 (3-(Triphenylmethylaminomethyl)pyridine), Known to Inhibit Slow Afterhyperpolarization, of erg -Mediated Potassium Currents and Intermediate-Conductance Calcium-Activated Potassium Channels about?

UCL-2077 (triphenylmethylaminomethyl)pyridine) was previously reported to suppress slow afterhyperpolarization in neurons. However, the information with respect to the effects of UCL-2077 on ionic currents is quite scarce. The addition of UCL-2077 decreased the amplitude of erg-mediated K+ current (IK(erg)) together with an increased deactivation rate of the current in pituitary GH3 cells. The IC50 and KD values of UCL-2077-induced inhibition of IK(erg) were 4.7 and 5.1 μM, respectively. UCL-2077 (10 μM) distinctly shifted the midpoint in the activation curve of IK(erg) to less hyperpolarizing potentials by 17 mV. Its presence decreased the degree of voltage hysteresis for IK(erg) elicitation by long-lasting triangular ramp pulse. It also diminished the probability of the opening of intermediate-conductance Ca2+-activated K+ channels. In cell-attached current recordings, UCL-2077 raised the frequency of action currents. When KCNH2 mRNA was knocked down, a UCL-2077-mediated increase in AC firing was attenuated. Collectively, the actions elaborated herein conceivably contribute to the perturbating effects of this compound on electrical behaviors of excitable cells.

Who reads Characterization of Convergent Suppression by UCL-2077 (3-(Triphenylmethylaminomethyl)pyridine), Known to Inhibit Slow Afterhyperpolarization, of erg -Mediated Potassium Currents and Intermediate-Conductance Calcium-Activated Potassium Channels?

Author

Hsu, Hung-Te; Lo, Yi-Ching; Wu, Sheng-Nan

Publisher

Molecular Diversity Preservation International; MDPI AG; Multidisciplinary Digital Publishing Institute (MDPI); Basel: MDPI Center, 2000- (ISSN 1422-0067)

Published

2020

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)