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Nakahari T, Suzuki C, Kawaguchi K, Hosogi S, Tanaka S, Asano S, Inui T, Marunaka Y. Ambroxol-Enhanced Frequency and Amplitude of Beating Cilia Controlled by a Voltage-Gated Ca 2+ Channel, Cav1.2, via pH i Increase and [Cl -] i Decrease in the Lung Airway Epithelial Cells of Mice. Int J Mol Sci 2023; 24:16976. [PMID: 38069298 PMCID: PMC10707002 DOI: 10.3390/ijms242316976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/25/2023] [Accepted: 11/28/2023] [Indexed: 12/18/2023] Open
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+-HCO3- cotransporter (NBC), enhanced the CBF (by 30%) and CBA (by 15-20%), and a decrease in [Cl-]i, which was induced by the Cl- release via anoctamine 1 (ANO1), enhanced the CBA (by 10-15%). While a Ca2+-free solution or nifedipine (an inhibitor of CaV1.2) inhibited 70% of the CBF and CBA enhancement using ABX, CaV1.2 enhanced most of the CBF and CBA increases using ABX. The activation of the CaV1.2 existing in the cilia stimulates the NBC to increase pHi and ANO1 to decrease the [Cl-]i in the c-LAECs. In conclusion, the pHi increase and the [Cl-]i decrease enhanced the CBF and CBA in the ABX-stimulated c-LAECs.
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Affiliation(s)
- Takashi Nakahari
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan;
- Medical Research Institute, Kyoto Industrial Health Association, Kyoto 604-8472, Japan
| | - Chihiro Suzuki
- Laboratory of Pharmacotherapy, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Takatsuki 569-1094, Japan; (C.S.); (S.T.)
| | - Kotoku Kawaguchi
- Department of Molecular Physiology, Faculty of Pharmacy, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (K.K.); (S.A.)
| | - Shigekuni Hosogi
- Department of Clinical and Translational Physiology, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan;
| | - Saori Tanaka
- Laboratory of Pharmacotherapy, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Takatsuki 569-1094, Japan; (C.S.); (S.T.)
| | - Shinji Asano
- Department of Molecular Physiology, Faculty of Pharmacy, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (K.K.); (S.A.)
| | - Toshio Inui
- Saisei Mirai Clinics, Moriguchi 570-0012, Japan;
| | - Yoshinori Marunaka
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan;
- Medical Research Institute, Kyoto Industrial Health Association, Kyoto 604-8472, Japan
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2
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Marunaka Y. Physiological roles of chloride ions in bodily and cellular functions. J Physiol Sci 2023; 73:31. [PMID: 37968609 PMCID: PMC10717538 DOI: 10.1186/s12576-023-00889-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 10/31/2023] [Indexed: 11/17/2023]
Abstract
Physiological roles of Cl-, a major anion in the body, are not well known compared with those of cations. This review article introduces: (1) roles of Cl- in bodily and cellular functions; (2) the range of cytosolic Cl- concentration ([Cl-]c); (3) whether [Cl-]c could change with cell volume change under an isosmotic condition; (4) whether [Cl-]c could change under conditions where multiple Cl- transporters and channels contribute to Cl- influx and efflux in an isosmotic state; (5) whether the change in [Cl-]c could be large enough to act as signals; (6) effects of Cl- on cytoskeletal tubulin polymerization through inhibition of GTPase activity and tubulin polymerization-dependent biological activity; (7) roles of cytosolic Cl- in cell proliferation; (8) Cl--regulatory mechanisms of ciliary motility; (9) roles of Cl- in sweet/umami taste receptors; (10) Cl--regulatory mechanisms of with-no-lysine kinase (WNK); (11) roles of Cl- in regulation of epithelial Na+ transport; (12) relationship between roles of Cl- and H+ in body functions.
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Affiliation(s)
- Yoshinori Marunaka
- Medical Research Institute, Kyoto Industrial Health Association, General Incorporated Foundation, 67 Kitatsuboi-Cho, Nishinokyo, Nakagyo-Ku, Kyoto, 604-8472, Japan.
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu, 525-8577, Japan.
- Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-Ku, Kyoto, 602-8566, Japan.
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3
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Saito D, Suzuki C, Tanaka S, Hosogi S, Kawaguchi K, Asano S, Okamoto S, Yasuda M, Hirano S, Inui T, Marunaka Y, Nakahari T. Ambroxol-enhanced ciliary beating via voltage-gated Ca 2+ channels in mouse airway ciliated cells. Eur J Pharmacol 2023; 941:175496. [PMID: 36642128 DOI: 10.1016/j.ejphar.2023.175496] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/12/2022] [Accepted: 01/05/2023] [Indexed: 01/15/2023]
Abstract
Ambroxol (ABX) facilitates the mucociliary clearance (MC) by enhancing ciliary beating in airways. In this study, we focused on airway ciliary beating enhanced by ABX. However, little is known about the ABX-stimulated Ca2+ signalling activating airway ciliary beating. Airway ciliated cells isolated from mice lungs were observed by a high-speed video microscope, and the activities of beating cilia were assessed by CBF (ciliary beat frequency) and CBD (ciliary bend distance, an index of amplitude). ABX (10 μM) enhanced the CBF and CBD by 30%, and the enhancement was inhibited by nifedipine (20 μM, a L-type voltage-gated Ca2+ channel (CaV) inhibitor), or a Ca2+-free solution (approximately 50%). Pre-treatment with BAPTA-AM (10 μM, a chelator of intracellular Ca2+) abolished ABX-stimulated increases in CBF, CBD and [Ca2+]i. Thus, ABX increases [Ca2+]i (intracellular Ca2+ concentration) by stimulating Ca2+ release from the internal stores and nifedipine-sensitive Ca2+ entry. A previous study demonstrated the expression of CaV1.2 in airway cilia. ABX enhanced CBF, CBD and [Ca2+]i even in a high extracellular K+ concentration (155.5 mM), suggesting that it activates CaV1.2 except by depolarization. These enhancements were inhibited by nifedipine. In conclusion, ABX, which increases [Ca2+]i by stimulating Ca2+ release from internal stores and Ca2+ entry through CaV1.2s, enhanced CBF and CBD in airway ciliated cells. ABX is a novel agonist that modulates CaV1.2 of airway beating cilia to enhance CBF and CBD.
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Affiliation(s)
- Daichi Saito
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC Ritsumeikan University, Kusatsu, 525-8577, Japan; Department of Molecular Physiology, Faculty of Pharmacy, BKC, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Chihiro Suzuki
- Laboratory of Pharmacotherapy, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Takatsuki 569-1094, Japan
| | - Saori Tanaka
- Laboratory of Pharmacotherapy, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Takatsuki 569-1094, Japan
| | - Shigekuni Hosogi
- Department of Clinical and Translational Physiology, Kyoto Pharmaceutical University, Kyoto, 607-8414, Japan
| | - Kotoku Kawaguchi
- Department of Molecular Physiology, Faculty of Pharmacy, BKC, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Shinji Asano
- Department of Molecular Physiology, Faculty of Pharmacy, BKC, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Shohta Okamoto
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC Ritsumeikan University, Kusatsu, 525-8577, Japan; Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Makoto Yasuda
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Shigeru Hirano
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Toshio Inui
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC Ritsumeikan University, Kusatsu, 525-8577, Japan; Saisei Mirai Clinics, Moriguchi, 570-0012, Japan
| | - Yoshinori Marunaka
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC Ritsumeikan University, Kusatsu, 525-8577, Japan; Medical Research Institute, Kyoto Industrial Health Association, Kyoto, 604-8472, Japan
| | - Takashi Nakahari
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC Ritsumeikan University, Kusatsu, 525-8577, Japan; Medical Research Institute, Kyoto Industrial Health Association, Kyoto, 604-8472, Japan.
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Saitoh D, Kawaguchi K, Asano S, Inui T, Marunaka Y, Nakahari T. Enhancement of airway ciliary beating mediated via voltage-gated Ca 2+ channels/α7-nicotinic receptors in mice. Pflugers Arch 2022; 474:1091-1106. [PMID: 35819489 DOI: 10.1007/s00424-022-02724-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 06/18/2022] [Accepted: 06/29/2022] [Indexed: 11/25/2022]
Abstract
Acetylcholine (ACh), which activates muscarinic ACh receptors (mAChRs) and nicotinic ACh receptors (nAChRs), enhances airway ciliary beating by increasing the intracellular Ca2+ concentration ([Ca2+]i). The mechanisms enhancing airway ciliary beating by nAChRs have remained largely unknown, although those by mAChRs are well understood. In this study, we focused on the effects of α7-nAChRs and voltage-gated Ca2+ channels (CaVs) on the airway ciliary beating. The activities of ciliary beating were assessed by frequency (CBF, ciliary beat frequency) and amplitude (CBD, ciliary bend distance) measured by high-speed video microscopy. ACh enhanced CBF and CBD by 25% mediated by an [Ca2+]i increase stimulated by mAChRs and α7-nAChRs (a subunit of nAChR) in airway ciliary cells of mice. Experiments using PNU282987 (an agonist of α7-nAChR) and MLA (an inhibitor of α7-nAChR) revealed that CBF and CBD enhanced by α7-nAChR are approximately 50% of those enhanced by ACh. CBF, CBD, and [Ca2+]i enhanced by α7-nAChRs were inhibited by nifedipine, suggesting activation of CaVs by α7-nAChRs. Experiments using a high K+ solution with/without nifedipine (155.5 mM K+) showed that the activation of CaVs enhances CBF and CBD via an [Ca2+]i increase. Immunofluorescence and immunoblotting studies demonstrated that Cav1.2 and α7-nAChR are expressed in airway cilia. Moreover, IL-13 stimulated MLA-sensitive increases in CBF and CBD in airway ciliary cells, suggesting an autocrine regulation of ciliary beating by CaV1.2/α7-nAChR/ACh. In conclusion, a novel Ca2+ signalling pathway in airway cilia, CaV1.2/α7-nAChR, enhances CBF and CBD and activates mucociliary clearance maintaining healthy airways.
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Affiliation(s)
- Daichi Saitoh
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC Ritsumeikan University, Kusatsu, 525-8577, Japan
- Department of Molecular Physiology, Faculty of Pharmacy, BKC, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Kotoku Kawaguchi
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC Ritsumeikan University, Kusatsu, 525-8577, Japan
- Department of Molecular Physiology, Faculty of Pharmacy, BKC, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Shinji Asano
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC Ritsumeikan University, Kusatsu, 525-8577, Japan
- Department of Molecular Physiology, Faculty of Pharmacy, BKC, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Toshio Inui
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC Ritsumeikan University, Kusatsu, 525-8577, Japan
- Saisei Mirai Clinics, Moriguchi, 570-0012, Japan
| | - Yoshinori Marunaka
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC Ritsumeikan University, Kusatsu, 525-8577, Japan
- Medical Research Institute, Kyoto Industrial Health Association, Kyoto, 604-8472, Japan
| | - Takashi Nakahari
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC Ritsumeikan University, Kusatsu, 525-8577, Japan.
- Medical Research Institute, Kyoto Industrial Health Association, Kyoto, 604-8472, Japan.
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5
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Pace E, Cerveri I, Lacedonia D, Paone G, Sanduzzi Zamparelli A, Sorbo R, Allegretti M, Lanata L, Scaglione F. Clinical Efficacy of Carbocysteine in COPD: Beyond the Mucolytic Action. Pharmaceutics 2022; 14:pharmaceutics14061261. [PMID: 35745833 PMCID: PMC9227620 DOI: 10.3390/pharmaceutics14061261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/31/2022] [Accepted: 06/06/2022] [Indexed: 12/14/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease with a versatile and complicated profile, being the fourth most common single cause of death worldwide. Several research groups have been trying to identify possible therapeutic approaches to treat COPD, such as the use of mucoactive drugs, which include carbocysteine. However, their role in the treatment of patients suffering from COPD remains controversial due to COPD's multifaceted profile. In the present review, 72 articles, published in peer-reviewed journals with high impact factors, are analyzed in order to provide significant insight and increase the knowledge about COPD considering the important contribution of carbocysteine in reducing exacerbations via multiple mechanisms. Carbocysteine is in fact able to modulate mucins and ciliary functions, and to counteract viral and bacterial infections as well as oxidative stress, offering cytoprotective effects. Furthermore, carbocysteine improves steroid responsiveness and exerts anti-inflammatory activity. This analysis demonstrates that the use of carbocysteine in COPD patients represents a well-tolerated treatment with a favorable safety profile, and might contribute to a better quality of life for patients suffering from this serious illness.
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Affiliation(s)
- Elisabetta Pace
- Institute of Translational Pharmacology (IFT), National Research Council, Via Ugo la Malfa, 153, 90146 Palermo, Italy;
| | - Isa Cerveri
- Department of Internal Medicine and Medical Therapy, University of Pavia, 27100 Pavia, Italy;
| | - Donato Lacedonia
- Institute of Respiratory Diseases, Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy;
| | - Gregorino Paone
- Department of Cardiovascular and Respiratory Sciences, Sapienza University of Rome, 00185 Rome, Italy;
| | - Alessandro Sanduzzi Zamparelli
- UOC Pneumotisiologia, Scuola di Specializzazione in Malattie Respiratorie, Università degli Studi di Napoli Federico II A.O.R.N. Monaldi-Cotugno-CTO Piazzale Ettore Ruggieri, 80138 Napoli, Italy;
| | - Rossella Sorbo
- Dompé Farmaceutici SpA, 20122 Milan, Italy; (R.S.); (M.A.); (L.L.)
| | | | - Luigi Lanata
- Dompé Farmaceutici SpA, 20122 Milan, Italy; (R.S.); (M.A.); (L.L.)
| | - Francesco Scaglione
- Department of Oncology and Onco-Hematology, University of Milan, 20122 Milan, Italy
- Correspondence:
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6
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Yasuda M, Inui TA, Hirano S, Asano S, Okazaki T, Inui T, Marunaka Y, Nakahari T. Intracellular Cl - Regulation of Ciliary Beating in Ciliated Human Nasal Epithelial Cells: Frequency and Distance of Ciliary Beating Observed by High-Speed Video Microscopy. Int J Mol Sci 2020; 21:ijms21114052. [PMID: 32517062 PMCID: PMC7312665 DOI: 10.3390/ijms21114052] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/28/2020] [Accepted: 06/03/2020] [Indexed: 12/12/2022] Open
Abstract
Small inhaled particles, which are entrapped by the mucous layer that is maintained by mucous secretion via mucin exocytosis and fluid secretion, are removed from the nasal cavity by beating cilia. The functional activities of beating cilia are assessed by their frequency and the amplitude. Nasal ciliary beating is controlled by intracellular ions (Ca2+, H+ and Cl-), and is enhanced by a decreased concentration of intracellular Cl- ([Cl-]i) in ciliated human nasal epithelial cells (cHNECs) in primary culture, which increases the ciliary beat amplitude. A novel method to measure both ciliary beat frequency (CBF) and ciliary beat distance (CBD, an index of ciliary beat amplitude) in cHNECs has been developed using high-speed video microscopy, which revealed that a decrease in [Cl-]i increased CBD, but not CBF, and an increase in [Cl-]i decreased both CBD and CBF. Thus, [Cl-]i inhibits ciliary beating in cHNECs, suggesting that axonemal structures controlling CBD and CBF may have Cl- sensors and be regulated by [Cl-]i. These observations indicate that the activation of Cl- secretion stimulates ciliary beating (increased CBD) mediated via a decrease in [Cl-]i in cHNECs. Thus, [Cl-]i is critical for controlling ciliary beating in cHNECs. This review introduces the concept of Cl- regulation of ciliary beating in cHNECs.
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Affiliation(s)
- Makoto Yasuda
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (T.-a.I.); (S.H.)
- Correspondence: (M.Y.); (T.N.); Tel.: +81-75-251-5603 (M.Y.); +81-77-561-3488 (ext. 7554) (T.N.)
| | - Taka-aki Inui
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (T.-a.I.); (S.H.)
| | - Shigeru Hirano
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (T.-a.I.); (S.H.)
| | - Shinji Asano
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (S.A.); (T.I.); (Y.M.)
- Department of Molecular Physiology, Faculty of Pharmaceutical Sciences, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan;
| | - Tomonori Okazaki
- Department of Molecular Physiology, Faculty of Pharmaceutical Sciences, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan;
| | - Toshio Inui
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (S.A.); (T.I.); (Y.M.)
- Saisei Mirai Clinics, Moriguchi 570-0012, Japan
| | - Yoshinori Marunaka
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (S.A.); (T.I.); (Y.M.)
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
- Research Institute for Clinical Physiology, Kyoto Industrial Health Association, Kyoto 604-8472, Japan
| | - Takashi Nakahari
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (S.A.); (T.I.); (Y.M.)
- Correspondence: (M.Y.); (T.N.); Tel.: +81-75-251-5603 (M.Y.); +81-77-561-3488 (ext. 7554) (T.N.)
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Kogiso H, Raveau M, Yamakawa K, Saito D, Ikeuchi Y, Okazaki T, Asano S, Inui T, Marunaka Y, Nakahari T. Airway Ciliary Beating Affected by the Pcp4 Dose-Dependent [Ca 2+] i Increase in Down Syndrome Mice, Ts1Rhr. Int J Mol Sci 2020; 21:ijms21061947. [PMID: 32178446 PMCID: PMC7139761 DOI: 10.3390/ijms21061947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/08/2020] [Accepted: 03/10/2020] [Indexed: 11/26/2022] Open
Abstract
In Ts1Rhr, a Down syndrome model mouse, the airway ciliary beatings are impaired; that is, decreases in ciliary beat frequency (CBF) and ciliary bend angle (CBA, an index of ciliary beat amplitude)). A resumption to two copies of the Pcp4 gene on the Ts1Rhr trisomic segment (Ts1Rhr:Pcp4+/+/-) rescues the decreases in CBF and CBA that occur in Ts1Rhr. In airway cilia, upon stimulation with procaterol (a β2-agonist), the CBF increase is slower over the time course than the CBA increase because of cAMP degradation by Ca2+/calmodulin-dependent phosphodiesterase 1 (PDE1) existing in the metabolon regulating CBF. In Ts1Rhr, procaterol-stimulated CBF increase was much slower over the time course than in the wild-type mouse (Wt) or Ts1Rhr:Pcp4+/+/-. However, in the presence of 8MmIBMX (8-methoxymethyl isobutylmethyl xanthine, an inhibitor of PDE1) or calmidazolium (an inhibitor of calmodulin), in both Wt and Ts1Rhr, procaterol stimulates CBF and CBA increases over a similar time course. Measurements of cAMP revealed that the cAMP contents were lower in Ts1Rhr than in Wt or in Ts1Rhr:Pcp4+/+/-, suggesting the activation of PDE1A that is present in Ts1Rhr airway cilia. Measurements of the intracellular Ca2+ concentration ([Ca2+]i) in airway ciliary cells revealed that temperature (increasing from 25 to 37 °C) or 4αPDD (a selective transient receptor potential vanilloid 4 (TRPV4) agonist) stimulates a larger [Ca2+]i increase in Ts1Rhr than in Wt or Ts1Rhr:Pcp4+/+/-. In airway ciliary cells of Ts1Rhr, Pcp4-dose dependent activation of TRPV4 appears to induce an increase in the basal [Ca2+]i. In early embryonic day mice, a basal [Ca2+]i increased by PCP4 expressed may affect axonemal regulatory complexes regulated by the Ca2+-signal in Ts1Rhr, leading to a decrease in the basal CBF and CBA of airway cilia.
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Affiliation(s)
- Haruka Kogiso
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (H.K.); (D.S.); (Y.I.); (S.A.); (T.I.); (Y.M.)
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Matthieu Raveau
- Laboratory for Neurogenetics, RIKEN, Brain Science Institute, Saitama 351-0198, Japan; (M.R.); (K.Y.)
| | - Kazuhiro Yamakawa
- Laboratory for Neurogenetics, RIKEN, Brain Science Institute, Saitama 351-0198, Japan; (M.R.); (K.Y.)
- Department of Neurodevelopmental Disorder Genetics, Institute of Brain Sciences, Nagoya City University Graduate School of Medical Sciences, Kawasumi, Mizuho-cho, Mizuho-ku Nagoya 467-8601, Japan
| | - Daichi Saito
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (H.K.); (D.S.); (Y.I.); (S.A.); (T.I.); (Y.M.)
- Department of Molecular Physiology, Faculty of Pharmaceutical Sciences, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan;
| | - Yukiko Ikeuchi
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (H.K.); (D.S.); (Y.I.); (S.A.); (T.I.); (Y.M.)
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Tomonori Okazaki
- Department of Molecular Physiology, Faculty of Pharmaceutical Sciences, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan;
| | - Shinji Asano
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (H.K.); (D.S.); (Y.I.); (S.A.); (T.I.); (Y.M.)
- Department of Molecular Physiology, Faculty of Pharmaceutical Sciences, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan;
| | - Toshio Inui
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (H.K.); (D.S.); (Y.I.); (S.A.); (T.I.); (Y.M.)
- Saisei Mirai Clinics, Moriguchi 570-0012, Japan
| | - Yoshinori Marunaka
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (H.K.); (D.S.); (Y.I.); (S.A.); (T.I.); (Y.M.)
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
- Research Institute for Clinical Physiology, Kyoto Industrial Health Association, Kyoto 604-8472, Japan
| | - Takashi Nakahari
- Research Unit for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan; (H.K.); (D.S.); (Y.I.); (S.A.); (T.I.); (Y.M.)
- Correspondence: ; Tel.: 81-77-561-3488 (ext. 7554)
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8
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Inui TA, Yasuda M, Hirano S, Ikeuchi Y, Kogiso H, Inui T, Marunaka Y, Nakahari T. Enhancement of ciliary beat amplitude by carbocisteine in ciliated human nasal epithelial cells. Laryngoscope 2019; 130:E289-E297. [PMID: 31294840 DOI: 10.1002/lary.28185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/29/2019] [Accepted: 06/24/2019] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Carbocisteine (CCis), a mucoactive agent, is used to improve the symptoms of sinonasal diseases. However, the effect of CCis on nasal ciliary beating remains uncertain. We examined the effects of CCis on ciliary beat distance (CBD, an index of amplitude), and ciliary beat frequency (CBF) in ciliated human nasal epithelial cells (cHNECs) in primary culture. METHODS The cHNECs were prepared from the nasal tissue resected from patients required surgery for chronic sinusitis (CS) or allergic rhinitis (AR). CBD and CBF were measured using videomicroscopy equipped with a high-speed camera. RESULTS CCis increased CBD by 30%, but not CBF, and decreased intracellular Cl- concentration ([Cl- ]i ) in cHNECs. The CCis' actions were mimicked by the Cl- -free NO3 - solution. In contrast, prior treatment of NPPB (20 μM) or CFTR(inh)-172 (1 μM), which increased [Cl- ]i by 20%, decreased CBF by 10% and CBD by 25% and inhibited the CCis' actions. However, prior treatment of T16Ainh-A01 (10 μM) did not inhibit the CCis' actions, although it decreased [Cl- ]i by 10% and CBD by 15%. Thus, CCis stimulates Cl- channels including cystic fibrosis transmembrane conductance regulator (CFTR). Moreover, CCis enhanced the transport of microbeads driven by the beating cilia in cHNECs. The CCis actions were similar in cHNECs from both types of pateints. CONCLUSION CCis increased CBD by 30% in cHNECs via an [Cl- ]i decrease stimulated by activation of Cl- channels, including CFTR. CCis may stimulate nasal mucociliary clearance by increasing CBD in patients contracting CS or AR. LEVEL OF EVIDENCE NA. Laryngoscope, 130:E289-E297, 2020.
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Affiliation(s)
- Taka-Aki Inui
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Makoto Yasuda
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shigeru Hirano
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yukiko Ikeuchi
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Haruka Kogiso
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshio Inui
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu, Japan.,Saisei Mirai Clinics, Moriguchi, Japan
| | - Yoshinori Marunaka
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu, Japan.,Research Institute for Clinical Physiology, Kyoto Industrial Health Association, Kyoto, Japan
| | - Takashi Nakahari
- Research Laboratory for Epithelial Physiology, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu, Japan
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Ciliary beating amplitude controlled by intracellular Cl - and a high rate of CO 2 production in ciliated human nasal epithelial cells. Pflugers Arch 2019; 471:1127-1142. [PMID: 31104127 DOI: 10.1007/s00424-019-02280-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/25/2019] [Accepted: 04/29/2019] [Indexed: 12/15/2022]
Abstract
The ciliary transport is controlled by two parameters of the ciliary beating, frequency (CBF) and amplitude. In this study, we developed a novel method to measure both CBF and ciliary bend distance (CBD, an index of ciliary beating amplitude) in ciliated human nasal epithelial cells (cHNECs) in primary culture, which are prepared from patients contracting allergic rhinitis and chronic sinusitis. An application of Cl--free NO3- solution or bumetanide (an inhibitor of Na+/K+/2Cl- cotransport), which decreases intracellular Cl- concentration ([Cl-]i), increased CBD, not CBF, at 37 °C; however, it increased both CBD and CBF at 25 °C. Conversely, addition of Cl- channel blockers (5-nitro-2-(3-phenylpropylamino) benzoic acid (NPPB) and 4-[[4-Oxo-2-thioxo-3-[3-trifluoromethyl]phenyl]-5-thiazolidinylidene]methyl] benzoic acid (CFTR(inh)-172)), which increase [Cl-]i, decreased both CBD and CBF, suggesting that CFTR plays a crucial role for maintaining [Cl-]i in these cells. We speculate that Cl- modulates activities of the molecular motors regulating both CBD and CBF in cHNECs. Moreover, application of the CO2/HCO3--free solution did not change intracellular pH (pHi), and addition of an inhibitor of carbonic anhydrase (acetazolamide) sustained pHi increase induced by the NH4+ pulse, which transiently increased pHi in the absence of acetazolamide. These results indicate that the cHNEC produces a large amount of CO2, which maintains a constant pHi even under the CO2/HCO3--free condition.
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10
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Inui TA, Yasuda M, Hirano S, Ikeuchi Y, Kogiso H, Inui T, Marunaka Y, Nakahari T. Daidzein-Stimulated Increase in the Ciliary Beating Amplitude via an [Cl -] i Decrease in Ciliated Human Nasal Epithelial Cells. Int J Mol Sci 2018; 19:ijms19123754. [PMID: 30486295 PMCID: PMC6321431 DOI: 10.3390/ijms19123754] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 11/22/2018] [Accepted: 11/22/2018] [Indexed: 01/26/2023] Open
Abstract
The effects of the isoflavone daidzein on the ciliary beat distance (CBD, which is a parameter assessing the amplitude of ciliary beating) and the ciliary beat frequency (CBF) were examined in ciliated human nasal epithelial cells (cHNECs) in primary culture. Daidzein decreased [Cl−]i and enhanced CBD in cHNECs. The CBD increase that was stimulated by daidzein was mimicked by Cl−-free NO3− solution and bumetanide (an inhibitor of Na+/K+/2Cl− cotransport), both of which decreased [Cl−]i. Moreover, the CBD increase was inhibited by 5-Nitro-2-(3-phenylpropylamino)benzoic acid (NPPB, a Cl− channel blocker), which increased [Cl−]i. CBF was also decreased by NPPB. The rate of [Cl−]i decrease evoked by Cl−-free NO3− solution was enhanced by daidzein. These results suggest that daidzein activates Cl− channels in cHNECs. Moreover, daidzein enhanced the microbead transport driven by beating cilia in the cell sheet of cHNECs, suggesting that an increase in CBD enhances ciliary transport. An [Cl−]i decrease enhanced CBD, but not CBF, in cHNECs at 37 °C, although it enhanced both at 25 °C. Intracellular Cl− affects both CBD and CBF in a temperature-dependent manner. In conclusion, daidzein, which activates Cl− channels to decrease [Cl−]i, stimulated CBD increase in cHNECs at 37 °C. CBD is a crucial factor that can increase ciliary transport in the airways under physiological conditions.
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Affiliation(s)
- Taka-Aki Inui
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
| | - Makoto Yasuda
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
| | - Shigeru Hirano
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
| | - Yukiko Ikeuchi
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
| | - Haruka Kogiso
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
| | - Toshio Inui
- Research Center for Drug Discovery and Pharmaceutical Development Science, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan.
- Saisei Mirai Clinics, Moriguchi 570-0012, Japan.
| | - Yoshinori Marunaka
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
- Research Center for Drug Discovery and Pharmaceutical Development Science, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan.
- Research Institute for Clinical Physiology, Kyoto Industrial Health Association, Kyoto 604-8472, Japan.
| | - Takashi Nakahari
- Research Center for Drug Discovery and Pharmaceutical Development Science, Research Organization of Science and Technology, BKC, Ritsumeikan University, Kusatsu 525-8577, Japan.
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