2023
DOI: 10.3390/ijms242316976
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Ambroxol-Enhanced Frequency and Amplitude of Beating Cilia Controlled by a Voltage-Gated Ca2+ Channel, Cav1.2, via pHi Increase and [Cl−]i Decrease in the Lung Airway Epithelial Cells of Mice

Takashi Nakahari,
Chihiro Suzuki,
Kotoku Kawaguchi
et al.

Abstract: Ambroxol (ABX), a frequently prescribed secretolytic agent which enhances the ciliary beat frequency (CBF) and ciliary bend angle (CBA, an index of amplitude) by 30%, activates a voltage-dependent Ca2+ channel (CaV1.2) and a small transient Ca2+ release in the ciliated lung airway epithelial cells (c-LAECs) of mice. The activation of CaV1.2 alone enhanced the CBF and CBA by 20%, mediated by a pHi increasei and a [Cl−]i decrease in the c-LAECs. The increase in pHi, which was induced by the activation of the Na+… Show more

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