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Lee D, Hong JH. Chloride/Multiple Anion Exchanger SLC26A Family: Systemic Roles of SLC26A4 in Various Organs. Int J Mol Sci 2024; 25:4190. [PMID: 38673775 PMCID: PMC11050216 DOI: 10.3390/ijms25084190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/31/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Solute carrier family 26 member 4 (SLC26A4) is a member of the SLC26A transporter family and is expressed in various tissues, including the airway epithelium, kidney, thyroid, and tumors. It transports various ions, including bicarbonate, chloride, iodine, and oxalate. As a multiple-ion transporter, SLC26A4 is involved in the maintenance of hearing function, renal function, blood pressure, and hormone and pH regulation. In this review, we have summarized the various functions of SLC26A4 in multiple tissues and organs. Moreover, the relationships between SLC26A4 and other channels, such as cystic fibrosis transmembrane conductance regulator, epithelial sodium channel, and sodium chloride cotransporter, are highlighted. Although the modulation of SLC26A4 is critical for recovery from malfunctions of various organs, development of specific inducers or agonists of SLC26A4 remains challenging. This review contributes to providing a better understanding of the role of SLC26A4 and development of therapeutic approaches for the SLC26A4-associated hearing loss and SLC26A4-related dysfunction of various organs.
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Affiliation(s)
| | - Jeong Hee Hong
- Department of Health Sciences and Technology, GAIHST (Gachon Advanced Institute for Health Sciences and Technology), Lee Gil Ya Cancer and Diabetes Institute, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Republic of Korea;
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Han Y, Jia C, Wang T, Wang P, Liu W, Qin Y, Cai S, Yang X, Zhang W, Liu Y, Xiao X, He L, Ge W, Ni X. Acquired CFTR dysfunction and dense distribution of ionocytes in nasal mucosa of children with CRS. Eur Arch Otorhinolaryngol 2023; 280:3237-3247. [PMID: 36662267 DOI: 10.1007/s00405-023-07833-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 01/09/2023] [Indexed: 01/21/2023]
Abstract
BACKGROUND Ionocytes are rare cells in airway epithelium characterized by a high expression of CFTR. OBJECTIVES To investigate the morphology and distribution of ionocytes and the function of CFTR in the nasal mucosal epithelium of children. METHODS The exfoliated cells of nasal mucosa from 101 children were detected using flow cytometry to analyze the number of ionocytes and CFTR and the difference of CFTR function. Nasal mucosa and polyps were collected from 10 children with CRSwNP. The RNAscope of FOXI1 and CFTR was detected in pathological paraffin sections. The expression and distribution of ionocytes and CFTR in nasal mucosa and polyp epithelium were observed. RESULTS In CRS patients, the number of ionocytes in the nasal epithelium was lower and the number of ionocytes that did not express CFTR was higher, and the function of CFTR was also decreased. The expression of CFTR in the nasal mucosa of CRS showed the characteristics of local dense distribution and increased as the inflammation expanded. The ionocytes were "tadpole-shaped" in the epithelium and gathered in the area of high CFTR expression, the intracellular CFTR was expanded in clusters. Ionocytes that did not express CFTR was more common in the nasal polyps. CONCLUSIONS The number of ionocytes and the function of CFTR in nasal mucosa of CRS patients decreased. With the expansion of inflammation, CFTR and ionocytes showed more obvious dense distribution. Some ionocytes lost the expression of CFTR and did not show the "tadpole" shape, which may be related to the occurrence of polyps.
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Affiliation(s)
- Yang Han
- Department of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, 56 NanLishi Road, Xicheng District, Beijing, 100045, China
| | - Chao Jia
- Department of Pathology, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China
| | - Tieshan Wang
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Pengpeng Wang
- Department of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, 56 NanLishi Road, Xicheng District, Beijing, 100045, China
| | - Wenjing Liu
- Department of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, 56 NanLishi Road, Xicheng District, Beijing, 100045, China
| | - Yu Qin
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Siyu Cai
- Center for Clinical Epidemiology and Evidence-Based Medicine, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China
| | - Xiaojian Yang
- Department of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, 56 NanLishi Road, Xicheng District, Beijing, 100045, China
| | - Wei Zhang
- Department of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, 56 NanLishi Road, Xicheng District, Beijing, 100045, China
| | - Yuwei Liu
- Department of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, 56 NanLishi Road, Xicheng District, Beijing, 100045, China
| | - Xiao Xiao
- Department of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, 56 NanLishi Road, Xicheng District, Beijing, 100045, China
| | - Lejian He
- Department of Pathology, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China
| | - Wentong Ge
- Department of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, 56 NanLishi Road, Xicheng District, Beijing, 100045, China.
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
| | - Xin Ni
- Department of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, 56 NanLishi Road, Xicheng District, Beijing, 100045, China.
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China.
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Wang Y, Hu X, Sun Y, Huang Y. The Role of ASIC1a in Inflammatory Immune Diseases: A Potential Therapeutic Target. Front Pharmacol 2022; 13:942209. [PMID: 35873582 PMCID: PMC9304623 DOI: 10.3389/fphar.2022.942209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 06/20/2022] [Indexed: 11/26/2022] Open
Abstract
It is acknowledged that chronic inflammation is associated with a rise in extracellular proton concentrations. The acid-sensing ion channel 1a (ASIC1a) belongs to the extracellular H+-activated cation channel family. Recently, many studies have been conducted on ASIC1a and inflammatory immune diseases. Here, in this review, we will focus on the role of ASIC1a in several inflammatory immune diseases so as to provide new perspectives for clinical treatment.
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Affiliation(s)
- Yinghong Wang
- Department of Pharmacy, Anhui Provincial Cancer Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xiaojie Hu
- Anhui Provincial Laboratory of Inflammatory and Immunity Disease, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Yancai Sun
- Department of Pharmacy, Anhui Provincial Cancer Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- *Correspondence: Yancai Sun, ; Yan Huang,
| | - Yan Huang
- Anhui Provincial Laboratory of Inflammatory and Immunity Disease, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- *Correspondence: Yancai Sun, ; Yan Huang,
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Nguyen TN, Suzuki H, Yoshida Y, Ohkubo JI, Wakasugi T, Kitamura T. Decreased CFTR/PPARγ and increased transglutaminase 2 in nasal polyps. Auris Nasus Larynx 2021; 49:964-972. [PMID: 34728118 DOI: 10.1016/j.anl.2021.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 09/27/2021] [Accepted: 10/13/2021] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Transglutaminase (TGM)2 and peroxisome proliferator-activated receptor (PPAR)γ are thought to participate in the pathogenesis of nasal polyp formation in cystic fibrosis (CF). We herein investigated expressions of cystic fibrosis transmembrane conductance regulator (CFTR), TGM2, PPARγ and isopeptide bonds, a reaction product of TGM, in non-CF nasal polyps. METHODS Nasal polyps and inferior turbinates were collected from chronic rhinosinusitis patients without CF during transnasal endoscopic sinonasal surgery. Expressions of CFTR, TGM2, isopeptide bonds and PPARγ were examined by fluorescence immunohistochemistry and quantitative RT-PCR. Expression of CFTR was also analyzed by Western blot. RESULTS Immunohistochemical fluorescence of the nasal polyp was significantly lower for CFTR and PPARγ, and significantly higher for TGM2 and isopeptide bonds than that of the turbinate mucosa. Lower expression of CFTR in the nasal polyp than in the turbinate mucosa was also observed in Western blot. Expression of PPARG mRNA was significantly lower in the nasal polyp than in the turbinate mucosa, whereas expressions of CFTR mRNA or TGM2 mRNA did not differ between the two tissues. Immunohistochemical fluorescence for CFTR showed significant negative correlation with that for TGM2 and isopeptide bonds, and significant positive correlation with that for PPARγ. The fluorescence for TGM2 was positively correlated with that for isopeptide bonds and negatively correlated with that for PPARγ. The fluorescence for isopeptide bonds tended to be negatively correlated with that for PPARγ. CONCLUSIONS These results suggest a possible role of the CFTR-TGM2-PPARγ cascade in the pathogenesis of nasal polyp formation in non-CF patients as in CF patients.
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Affiliation(s)
- Thi Nga Nguyen
- Department of Otorhinolaryngology-Head and Neck Surgery and Department of Immunology and Parasitology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Faculty of Public Health, Vinh Medical University, Vinh City, Vietnam
| | - Hideaki Suzuki
- Department of Otorhinolaryngology-Head and Neck Surgery and Department of Immunology and Parasitology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
| | - Yasuhiro Yoshida
- Department of Immunology and Parasitology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Jun-Ichi Ohkubo
- Department of Otorhinolaryngology-Head and Neck Surgery and Department of Immunology and Parasitology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Tetsuro Wakasugi
- Department of Otorhinolaryngology-Head and Neck Surgery and Department of Immunology and Parasitology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Takuro Kitamura
- Department of Otorhinolaryngology-Head and Neck Surgery and Department of Immunology and Parasitology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
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Tang R, Ba G, Li M, Li Z, Ye H, Lin H, Zhang W. Evidence for role of acid-sensing ion channel 1a in chronic rhinosinusitis with nasal polyps. Eur Arch Otorhinolaryngol 2021; 278:2379-2386. [PMID: 33392760 DOI: 10.1007/s00405-020-06521-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 11/26/2020] [Indexed: 11/28/2022]
Abstract
PURPOSE A variety of inflammatory cells are infiltrated histologically in sinonasal mucosa of chronic rhinosinusitis with nasal polyps (CRSwNP), especially CRSwNP with asthma. Acid-sensing ion channel 1a (ASIC1a) is essential in the process of sensing acidification and triggering inflammation. Whereas, its role and mechanism in CRSwNP remain uncertain. The present study aimed to explore the roles and mechanism of ASIC1a in the pathogenesis of CRSwNP. METHODS Nasal secretions from control subjects, patients with CRSwNP with or without asthma were collected for measuring pH values. Western blotting, real-time PCR and immunohistochemistry (IHC) were employed to assess ASIC1a expression in nasal tissue samples from included subjects. The co-localization of ASIC1a with inflammatory cells was evaluated by immunofluorescence staining. Then, dispersed nasal polyp cells (DNPCs) were cultured under acidified condition (pH 6.0), with or without ASIC1a inhibitor amiloride. Western blotting, real-time PCR, LDH activity kit, and ELISA were performed to assess the effects and mechanisms of stimulators on the cells. RESULTS The pH values were significantly lower in the nasal secretions from patients with CRSwNP with asthma. Significant upregulation of ASIC1a protein, mRNA levels, and positive cells was found in CRSwNP with asthma. ASIC1a was detected in a variety of inflammatory cells. In cultured DNPCs, significant alterations of ASIC1a levels, LDH activity, HIF-1α levels, and inflammatory cytokines were found under acidified condition (pH 6.0), but were prevented by amiloride. CONCLUSION Upregulation of ASIC1a might be essential in the process of sensing acidification and triggering inflammatory response via enhancing HIF-1α expression and LDH activity to activate inflammatory cells in the pathogenesis of CRSwNP, especially in CRSwNP with asthma.
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Affiliation(s)
- Ru Tang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, People's Republic of China
| | - Guangyi Ba
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, People's Republic of China
| | - Mingxian Li
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, People's Republic of China
| | - Zhipeng Li
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, People's Republic of China
| | - Haibo Ye
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, People's Republic of China
| | - Hai Lin
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, People's Republic of China.
| | - Weitian Zhang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, People's Republic of China.
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