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Liu X, Zhao L, Wang R, Tang Z. TRPM2 exacerbates airway inflammation by regulating oxidized-CaMKⅡ in allergic asthma. Heliyon 2024; 10:e23634. [PMID: 38187281 PMCID: PMC10767383 DOI: 10.1016/j.heliyon.2023.e23634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 12/08/2023] [Accepted: 12/08/2023] [Indexed: 01/09/2024] Open
Abstract
Background Airway epithelial cells play important roles in allergic asthma. Transient receptor potential melastatin-related 2 (TRPM2) and oxidized Ca2+/calmodulin-dependent protein kinase Ⅱ (ox-CaMKⅡ) participate in the airway inflammation. This study aimed to analyze the effects of TRPM2 on ox-CaMKⅡ in the airway epithelial cells during allergic asthma. Methods BEAS-2B cells were treated with different dose of IL-13 (0, 5, 10, 20 ng/mL) for 24 h to analyze the changes of TRPM2 and ox-CaMKⅡ protein. Cells expressing different level of TRPM2 were obtained by transfection of TRPM2 siRNA or TRPM2-short cDNA. The transfected cells were treated with 10 ng/mL of IL-13 to analyze the effects of TRPM2 on the ox-CaMKⅡ. A CaMKⅡ inhibitor KN-93 was used to confirm the effects of TRPM2 on levels of ox-CaMKⅡ, p-MEK and p-ERK in the IL-13-treated BEAS-2B cells. Wild-type (WT) mice and TRPM2-knockout (TRPM2-/-) mice were induced by ovalbumin (OVA) to compare the differences of inflammation, levels of ox-CaMKII, p-MEK and p-ERK in airways. Results Cell viability was clearly decreased by the 20 ng/mL of IL-13. The levels of TRPM2 and ox-CaMKII protein in cells were increased with increasing doses of IL-13. Transfection of TRPM2 siRNA or TRPM2-short cDNA respectively decreased or increased the levels of ox-CaMKⅡ in the IL-13-stimulated cells. The results of KN-93 treatment were similar to the results of TRPM2 siRNA transfection, that the levels of ox-CaMKⅡ, p-MEK and p-ERK were significantly decreased in the IL-13-treated cells. Compared with the OVA-induced WT mice, levels of inflammation, ox-CaMKⅡ, p-MEK and p-ERK in the airways were significantly weakened in the OVA-induced TRPM2-/- mice. Conclusions TRPM2 plays a vital role in regulating ox-CaMKⅡ in airway epithelial cells during allergic asthma.
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Affiliation(s)
- Xueping Liu
- Department of Pulmonary and Critical Care Medicine, Yantai Yuhuangding Hospital, 264000, China
| | - Lingyan Zhao
- Department of Nursing, Yantai Yuhuangding Hospital, 264000, China
| | - Rui Wang
- Department of Pulmonary and Critical Care Medicine, Yantai Yuhuangding Hospital, 264000, China
| | - Zhaoying Tang
- Department of Pulmonary and Critical Care Medicine, Yantai Yuhuangding Hospital, 264000, China
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Spix B, Jeridi A, Ansari M, Yildirim AÖ, Schiller HB, Grimm C. Endolysosomal Cation Channels and Lung Disease. Cells 2022; 11:304. [PMID: 35053420 PMCID: PMC8773812 DOI: 10.3390/cells11020304] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/20/2021] [Accepted: 12/25/2021] [Indexed: 12/28/2022] Open
Abstract
Endolysosomal cation channels are emerging as key players of endolysosomal function such as endolysosomal trafficking, fusion/fission, lysosomal pH regulation, autophagy, lysosomal exocytosis, and endocytosis. Diseases comprise lysosomal storage disorders (LSDs) and neurodegenerative diseases, metabolic diseases, pigmentation defects, cancer, immune disorders, autophagy related diseases, infectious diseases and many more. Involvement in lung diseases has not been a focus of attention so far but recent developments in the field suggest critical functions in lung physiology and pathophysiology. Thus, loss of TRPML3 was discovered to exacerbate emphysema formation and cigarette smoke induced COPD due to dysregulated matrix metalloproteinase 12 (MMP-12) levels in the extracellular matrix of the lung, a known risk factor for emphysema/COPD. While direct lung function measurements with the exception of TRPML3 are missing for other endolysosomal cation channels or channels expressed in lysosome related organelles (LRO) in the lung, links between those channels and important roles in lung physiology have been established such as the role of P2X4 in surfactant release from alveolar epithelial Type II cells. Other channels with demonstrated functions and disease relevance in the lung such as TRPM2, TRPV2, or TRPA1 may mediate their effects due to plasma membrane expression but evidence accumulates that these channels might also be expressed in endolysosomes, suggesting additional and/or dual roles of these channels in cell and intracellular membranes. We will discuss here the current knowledge on cation channels residing in endolysosomes or LROs with respect to their emerging roles in lung disease.
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Affiliation(s)
- Barbara Spix
- Walther Straub Institute of Pharmacology and Toxicology, Faculty of Medicine, Ludwig-Maximilians-University, 80336 Munich, Germany;
| | - Aicha Jeridi
- Pneumology Center, Institute of Lung Biology and Disease, Helmholtz Zentrum München, 85764 Munich, Germany; (A.J.); (M.A.); (A.Ö.Y.); (H.B.S.)
| | - Meshal Ansari
- Pneumology Center, Institute of Lung Biology and Disease, Helmholtz Zentrum München, 85764 Munich, Germany; (A.J.); (M.A.); (A.Ö.Y.); (H.B.S.)
| | - Ali Önder Yildirim
- Pneumology Center, Institute of Lung Biology and Disease, Helmholtz Zentrum München, 85764 Munich, Germany; (A.J.); (M.A.); (A.Ö.Y.); (H.B.S.)
| | - Herbert B. Schiller
- Pneumology Center, Institute of Lung Biology and Disease, Helmholtz Zentrum München, 85764 Munich, Germany; (A.J.); (M.A.); (A.Ö.Y.); (H.B.S.)
| | - Christian Grimm
- Walther Straub Institute of Pharmacology and Toxicology, Faculty of Medicine, Ludwig-Maximilians-University, 80336 Munich, Germany;
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Nam JH, Kim WK. The Role of TRP Channels in Allergic Inflammation and its Clinical Relevance. Curr Med Chem 2020; 27:1446-1468. [PMID: 30474526 DOI: 10.2174/0929867326666181126113015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 09/03/2018] [Accepted: 11/07/2018] [Indexed: 12/24/2022]
Abstract
Allergy refers to an abnormal adaptive immune response to non-infectious environmental substances (allergen) that can induce various diseases such as asthma, atopic dermatitis, and allergic rhinitis. In this allergic inflammation, various immune cells, such as B cells, T cells, and mast cells, are involved and undergo complex interactions that cause a variety of pathophysiological conditions. In immune cells, calcium ions play a crucial role in controlling intracellular Ca2+ signaling pathways. Cations, such as Na+, indirectly modulate the calcium signal generation by regulating cell membrane potential. This intracellular Ca2+ signaling is mediated by various cation channels; among them, the Transient Receptor Potential (TRP) family is present in almost all immune cell types, and each channel has a unique function in regulating Ca2+ signals. In this review, we focus on the role of TRP ion channels in allergic inflammatory responses in T cells and mast cells. In addition, the TRP ion channels, which are attracting attention in clinical practice in relation to allergic diseases, and the current status of the development of therapeutic agents that target TRP channels are discussed.
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Affiliation(s)
- Joo Hyun Nam
- Department of Physiology, Dongguk University College of Medicine, 123 Dongdae-ro, Gyeongju 38066, Korea.,Channelopathy Research Center (CRC), Dongguk University College of Medicine, 32 Dongguk-ro, Ilsan Dong-gu, Goyang, Gyeonggi-do 10326, Korea
| | - Woo Kyung Kim
- Channelopathy Research Center (CRC), Dongguk University College of Medicine, 32 Dongguk-ro, Ilsan Dong-gu, Goyang, Gyeonggi-do 10326, Korea.,Department of Internal Medicine Graduate School of Medicine, Dongguk University, 27 Dongguk-ro, Ilsan Dong-gu, Goyang, Gyeonggi-do 10326, Korea
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4
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Zierler S, Hampe S, Nadolni W. TRPM channels as potential therapeutic targets against pro-inflammatory diseases. Cell Calcium 2017; 67:105-115. [PMID: 28549569 DOI: 10.1016/j.ceca.2017.05.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 05/02/2017] [Indexed: 02/08/2023]
Abstract
The immune system protects our body against foreign pathogens. However, if it overshoots or turns against itself, pro-inflammatory diseases, such as rheumatoid arthritis, inflammatory bowel disease, or diabetes develop. Ions, the most basic signaling molecules, shape intracellular signaling cascades resulting in immune cell activation and subsequent immune responses. Mutations in ion channels required for calcium signaling result in human immunodeficiencies and highlight those ion channels as valued targets for therapies against pro-inflammatory diseases. Signaling pathways regulated by melastatin-like transient receptor potential (TRPM) cation channels also play crucial roles in calcium signaling and leukocyte physiology, affecting phagocytosis, degranulation, chemokine and cytokine expression, chemotaxis and invasion, as well as lymphocyte development and proliferation. Therefore, this review discusses their regulation, possible interactions and whether they can be exploited as targets for therapeutic approaches to pro-inflammatory diseases.
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Affiliation(s)
- Susanna Zierler
- Walther Straub Institute of Pharmacology and Toxicology, LMU Munich, Germany.
| | - Sarah Hampe
- Walther Straub Institute of Pharmacology and Toxicology, LMU Munich, Germany
| | - Wiebke Nadolni
- Walther Straub Institute of Pharmacology and Toxicology, LMU Munich, Germany
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5
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TRPM2 ion channels regulate macrophage polarization and gastric inflammation during Helicobacter pylori infection. Mucosal Immunol 2017; 10:493-507. [PMID: 27435104 PMCID: PMC5250617 DOI: 10.1038/mi.2016.60] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 06/09/2016] [Indexed: 02/04/2023]
Abstract
Calcium signaling in phagocytes is essential for cellular activation, migration, and the potential resolution of infection or inflammation. The generation of reactive oxygen species (ROS) via activation of NADPH (nicotinamide adenine dinucleotide phosphate)-oxidase activity in macrophages has been linked to altered intracellular calcium concentrations. Because of its role as an oxidative stress sensor in phagocytes, we investigated the function of the cation channel transient receptor potential melastatin 2 (TRPM2) in macrophages during oxidative stress responses induced by Helicobacter pylori infection. We show that Trpm2-/- mice, when chronically infected with H. pylori, exhibit increased gastric inflammation and decreased bacterial colonization compared with wild-type (WT) mice. The absence of TRPM2 triggers greater macrophage production of inflammatory mediators and promotes classically activated macrophage M1 polarization in response to H. pylori. TRPM2-deficient macrophages upon H. pylori stimulation are unable to control intracellular calcium levels, which results in calcium overloading. Furthermore, increased intracellular calcium in TRPM2-/- macrophages enhanced mitogen-activated protein kinase and NADPH-oxidase activities, compared with WT macrophages. Our data suggest that augmented production of ROS and inflammatory cytokines with TRPM2 deletion regulates oxidative stress in macrophages and consequently decreases H. pylori gastric colonization while increasing inflammation in the gastric mucosa.
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Tsc1 expression by dendritic cells is required to preserve T-cell homeostasis and response. Cell Death Dis 2017; 8:e2553. [PMID: 28079897 PMCID: PMC5386387 DOI: 10.1038/cddis.2016.487] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 12/12/2016] [Accepted: 12/13/2016] [Indexed: 01/04/2023]
Abstract
Dendritic cells (DCs) are pivotal to the induction of adaptive T-cell immune responses. Recent evidence highlights a critical role of tuberous sclerosis complex 1 (Tsc1), a primarily upstream negative regulator of mammalian target of rapamycin (mTOR), in DC development, but whether and how Tsc1 directly regulate mature DC function in vivo remains elusive. Here we show that selective disruption of Tsc1 in DCs results in a lymphoproliferative disorder with the spontaneous activation of T cells. Tsc1 deficiency results in the activation of mTORC1-PPARγ pathway, which leads to the upregulation of neuropilin-1 (Nrp1) expression on DCs to stimulate naive T-cell proliferation. However, Tsc1-deficient DCs have defects in the ability to induce antigen-specific T-cell responses in vitro and in vivo owing to impaired survival during antigen transportation and presentation. Indeed, Tsc1 promotes DC survival through restraining independent mTORC1 and ROS-Bim pathways. Our study identifies Tsc1 as a crucial signaling checkpoint in DCs essential for preserving T-cell homeostasis and response.
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Yonezawa R, Yamamoto S, Takenaka M, Kage Y, Negoro T, Toda T, Ohbayashi M, Numata T, Nakano Y, Yamamoto T, Mori Y, Ishii M, Shimizu S. TRPM2 channels in alveolar epithelial cells mediate bleomycin-induced lung inflammation. Free Radic Biol Med 2016; 90:101-13. [PMID: 26600069 DOI: 10.1016/j.freeradbiomed.2015.11.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 11/11/2015] [Accepted: 11/16/2015] [Indexed: 02/04/2023]
Abstract
Lung inflammation is a major adverse effect of therapy with the antitumor drug bleomycin (BLM). Transient receptor potential melastatin 2 (TRPM2) is a Ca(2+)-permeable channel that is activated by oxidative stress through the production of ADP-ribose. We herein investigated whether TRPM2 channels contributed to BLM-induced lung inflammation. The intratracheal instillation of BLM into wild-type (WT) mice increased the number of polymorphonuclear leukocytes (PMNs) and inflammatory cytokine levels in the lung. Increases in inflammatory markers in WT mice were markedly reduced in trpm2 knockout (KO) mice, which demonstrated that the activation of TRPM2 channels was involved in BLM-induced lung inflammation. The expression of TRPM2 mRNA was observed in alveolar macrophages, alveolar epithelial cells, and lung fibroblasts. Actually, TRPM2 protein was expressed in lung tissues. Of these, TRPM2 channels in epithelial cells were activated by the addition of H2O2 following a BLM pretreatment, resulting in the secretion of macrophage inflammatory protein-2 (MIP-2). The H2O2-induced activation of TRPM2 by the BLM pretreatment was blocked by the poly(ADP-ribose) polymerase (PARP) inhibitors PJ34 and 3-aminobenzamide. The accumulation of poly(ADP-ribose) in the nucleus, a marker for ADP-ribose production, was strongly induced by H2O2 following the BLM pretreatment. Furthermore, administration of PRAP inhibitors into WT mice markedly reduced recruitment of inflammatory cells and MIP-2 secretion induced by BLM instillation. These results suggest that the induction of MIP-2 secretion through the activation of TRPM2 channels in alveolar epithelial cells is an important mechanism in BLM-induced lung inflammation, and the TRPM2 activation is likely to be mediated by ADP-ribose production via PARP pathway. TRPM2 channels may be new therapeutic target for BLM-induced lung inflammation.
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Affiliation(s)
- Ryo Yonezawa
- Division of Physiology and Pathology, Department of Pharmacology, Toxicology and Therapeutics, Showa University School of Pharmacy, Tokyo, Japan; Division of Pharmacology, Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano, Nakano-ku, Tokyo 164-8530, Japan
| | - Shinichiro Yamamoto
- Division of Pharmacology, Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano, Nakano-ku, Tokyo 164-8530, Japan; Department of Molecular Cell Biology and Medicine, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, Japan
| | - Miki Takenaka
- Division of Physiology and Pathology, Department of Pharmacology, Toxicology and Therapeutics, Showa University School of Pharmacy, Tokyo, Japan
| | - Yukiko Kage
- Division of Physiology and Pathology, Department of Pharmacology, Toxicology and Therapeutics, Showa University School of Pharmacy, Tokyo, Japan
| | - Takaharu Negoro
- Department of Pharmacogenomics, Showa University School of Pharmacy, Tokyo, Japan
| | - Takahiro Toda
- Laboratory of Pharmacology, Department of Clinical Pharmacy, Yokohama College of Pharmacy, Yokohama, Japan
| | - Masayuki Ohbayashi
- Division of Clinical Pharmacy, Department of Pharmacotherapeutics, Showa University School of Pharmacy, Tokyo, Japan
| | - Tomohiro Numata
- Department of Physiology, Graduate School of Medical Sciences, Fukuoka University, Fukuoka, Japan
| | - Yasuko Nakano
- Department of Pharmacogenomics, Showa University School of Pharmacy, Tokyo, Japan
| | - Toshinori Yamamoto
- Division of Clinical Pharmacy, Department of Pharmacotherapeutics, Showa University School of Pharmacy, Tokyo, Japan
| | - Yasuo Mori
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Masakazu Ishii
- Division of Physiology and Pathology, Department of Pharmacology, Toxicology and Therapeutics, Showa University School of Pharmacy, Tokyo, Japan
| | - Shunichi Shimizu
- Division of Physiology and Pathology, Department of Pharmacology, Toxicology and Therapeutics, Showa University School of Pharmacy, Tokyo, Japan; Division of Pharmacology, Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano, Nakano-ku, Tokyo 164-8530, Japan; Laboratory of Pharmacology, Department of Clinical Pharmacy, Yokohama College of Pharmacy, Yokohama, Japan.
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Syed Mortadza SA, Wang L, Li D, Jiang LH. TRPM2 Channel-Mediated ROS-Sensitive Ca(2+) Signaling Mechanisms in Immune Cells. Front Immunol 2015; 6:407. [PMID: 26300888 PMCID: PMC4528159 DOI: 10.3389/fimmu.2015.00407] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 07/24/2015] [Indexed: 12/11/2022] Open
Abstract
Transient receptor potential melastatin 2 (TRPM2) proteins form Ca2+-permeable cationic channels that are potently activated by reactive oxygen species (ROS). ROS are produced during immune responses as signaling molecules as well as anti-microbial agents. ROS-sensitive TRPM2 channels are widely expressed in cells of the immune system and located on the cell surface as a Ca2+ influx pathway in macrophages, monocytes, neutrophils, lymphocytes, and microglia but preferentially within the lysosomal membranes as a Ca2+ release mechanism in dendritic cells; ROS activation of the TRPM2 channels, regardless of the subcellular location, results in an increase in the intracellular Ca2+ concentrations. Recent studies have revealed that TRPM2-mediated ROS-sensitive Ca2+ signaling mechanisms play a crucial role in a number of processes and functions in immune cells. This mini-review discusses the recent advances in revelation of the various roles the TRPM2 channels have in immune cell functions and the implications in inflammatory diseases.
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Affiliation(s)
| | - Lu Wang
- Key Laboratory of Brain Research of Henan Province, Department of Physiology and Neurobiology, Xinxiang Medical University , Xinxiang , China
| | - Dongliang Li
- Key Laboratory of Brain Research of Henan Province, Department of Physiology and Neurobiology, Xinxiang Medical University , Xinxiang , China
| | - Lin-Hua Jiang
- School of Biomedical Sciences, University of Leeds , Leeds , UK ; Key Laboratory of Brain Research of Henan Province, Department of Physiology and Neurobiology, Xinxiang Medical University , Xinxiang , China
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Shi JP, Li XN, Zhang XY, Du B, Jiang WZ, Liu MY, Wang JJ, Wang ZG, Ren H, Qian M. Gpr97 Is Dispensable for Inflammation in OVA-Induced Asthmatic Mice. PLoS One 2015; 10:e0131461. [PMID: 26132811 PMCID: PMC4489018 DOI: 10.1371/journal.pone.0131461] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 06/02/2015] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Asthma is a complex inflammatory disorder involving the activation and invasion of various immune cells. GPR97 is highly expressed in some immunocytes, including mast cells and eosinophils, which play critical roles in asthma development. However, the role of Gpr97 in regulating airway inflammation in asthma has rarely been reported. In this study, we investigated the potential role of Gpr97 in the development of allergic asthma in mice. METHODS Relevant airway asthmatic mouse models were constructed with both wild-type and Gpr97-/- mice sensitized to 250 μg ovalbumin (OVA). The levels of interleukin IL-4, IL-6 and IFN-γ, which are involved in OVA-induced asthma, in the bronchoalveolar lavage fluid (BALF) and the IgE level in the serum were examined by enzyme-linked immunosorbent assay (ELISA). The invasion of mast cells and eosinophils into lung tissues was assessed by immunohistochemical and eosinophil peroxidase activity assays, respectively. Goblet cell hyperplasia and mucus production were morphologically evaluated with periodic acid-Schiff (PAS) staining. RESULTS In our study, no obvious alteration in the inflammatory response or airway remodeling was found in the Gpr97-deficient mice with OVA-induced asthma. Neither the secretion of cytokines, including IL-4, IL-6 and IFN-γ, nor inflammatory cell recruitment was altered in the Gpr97-deficient mice. Moreover, Gpr97 deficiency did not affect airway remodeling or mucus production in the asthma mouse model. CONCLUSION Our findings imply that Gpr97 might not be required for the development of airway inflammation in OVA-induced allergic asthma in mice.
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Affiliation(s)
- Jue-ping Shi
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
- Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Xiao-ning Li
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
- Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Xiao-yu Zhang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
- Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Bing Du
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
- Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Wen-zheng Jiang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
- Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Ming-yao Liu
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
- Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Jin-jin Wang
- Shanghai Research Center for Model Organisms, Shanghai, China
| | - Zhu-gang Wang
- Shanghai Research Center for Model Organisms, Shanghai, China
| | - Hua Ren
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
- Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Min Qian
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
- Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
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Zholos AV. TRP Channels in Respiratory Pathophysiology: the Role of Oxidative, Chemical Irritant and Temperature Stimuli. Curr Neuropharmacol 2015; 13:279-91. [PMID: 26411771 PMCID: PMC4598440 DOI: 10.2174/1570159x13666150331223118] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 03/09/2015] [Accepted: 03/09/2015] [Indexed: 12/13/2022] Open
Abstract
There is rapidly growing evidence indicating multiple and important roles of Ca(2+)- permeable cation TRP channels in the airways, both under normal and disease conditions. The aim of this review was to summarize the current knowledge of TRP channels in sensing oxidative, chemical irritant and temperature stimuli by discussing expression and function of several TRP channels in relevant cell types within the respiratory tract, ranging from sensory neurons to airway smooth muscle and epithelial cells. Several of these channels, such as TRPM2, TRPM8, TRPA1 and TRPV1, are discussed in much detail to show that they perform diverse, and often overlapping or contributory, roles in airway hyperreactivity, inflammation, asthma, chronic obstructive pulmonary disease and other respiratory disorders. These include TRPM2 involvement in the disruption of the bronchial epithelial tight junctions during oxidative stress, important roles of TRPA1 and TRPV1 channels in airway inflammation, hyperresponsiveness, chronic cough, and hyperplasia of airway smooth muscles, as well as TRPM8 role in COPD and mucus hypersecretion. Thus, there is increasing evidence that TRP channels not only function as an integral part of the important endogenous protective mechanisms of the respiratory tract capable of detecting and ensuring proper physiological responses to various oxidative, chemical irritant and temperature stimuli, but that altered expression, activation and regulation of these channels may also contribute to the pathogenesis of respiratory diseases.
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Affiliation(s)
- Alexander V Zholos
- Department of Biophysics, Educational and Scientific Centre "Institute of Biology", Taras Shevchenko Kiev National University, 2 Academician Glushkov Avenue, Kiev 03022, Ukraine.
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Cheng RYS, Shang Y, Limjunyawong N, Dao T, Das S, Rabold R, Sham JSK, Mitzner W, Tang WY. Alterations of the lung methylome in allergic airway hyper-responsiveness. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2014; 55:244-255. [PMID: 24446183 PMCID: PMC4125208 DOI: 10.1002/em.21851] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 11/20/2013] [Accepted: 12/28/2013] [Indexed: 05/29/2023]
Abstract
Asthma is a chronic airway disorder characterized by recurrent attacks of breathlessness and wheezing, affecting 300 million people around the world (available at: www.who.int). To date, genetic factors associated with asthma susceptibility have been unable to explain the full etiology of asthma. Recent studies have demonstrated that the epigenetic disruption of gene expression plays an equally important role in the development of asthma through interaction with our environment. We sensitized 6-week-old C57BL/6J mice with house-dust-mite (HDM) extracts intraperitoneally followed by 5 weeks of exposure to HDM challenges (three times a week) intratracheally. HDM-exposed mice showed an increase in airway hyper-responsiveness (AHR) and inflammation together with structural remodeling of the airways. We applied methylated DNA immunoprecipitation-next generation sequencing (MeDIP-seq) for profiling of DNA methylation changes in the lungs in response to HDM. We observed about 20 million reads by a single-run of massive parallel sequencing. We performed bioinformatics and pathway analysis on the raw sequencing data to identify differentially methylated candidate genes in HDM-exposed mice. Specifically, we have revealed that the transforming growth factor beta signaling pathway is epigenetically modulated by chronic exposure to HDM. Here, we demonstrated that a specific allergen may play a role in AHR through an epigenetic mechanism by disrupting the expression of genes in lungs that might be involved in airway inflammation and remodeling. Our findings provide new insights into the potential mechanisms by which environmental allergens induce allergic asthma and such insights may assist in the development of novel preventive and therapeutic options for this debilitative disease.
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Affiliation(s)
- Robert YS Cheng
- Radiation Biology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Yan Shang
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States
- Department of Respiratory Diseases, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Nathachit Limjunyawong
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States
| | - Tyna Dao
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States
| | - Sandhya Das
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States
| | - Richard Rabold
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States
| | - James SK Sham
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Wayne Mitzner
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States
| | - Wan-Yee Tang
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States
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Abstract
TRPM2 is the second member of the transient receptor potential melastatin-related (TRPM) family of cation channels. The protein is widely expressed including in the brain, immune system, endocrine cells, and endothelia. It embodies both ion channel functionality and enzymatic ADP-ribose (ADPr) hydrolase activity. TRPM2 is a Ca(2+)-permeable nonselective cation channel embedded in the plasma membrane and/or lysosomal compartments that is primarily activated in a synergistic fashion by intracellular ADP-ribose (ADPr) and Ca(2+). It is also activated by reactive oxygen and nitrogen species (ROS/NOS) and enhanced by additional factors, such as cyclic ADPr and NAADP, while inhibited by permeating protons (acidic pH) and adenosine monophosphate (AMP). Activation of TRPM2 leads to increases in intracellular Ca(2+) levels, which can serve signaling roles in inflammatory and secretory cells through release of vesicular mediators (e.g., cytokines, neurotransmitters, insulin) and in extreme cases can induce apoptotic and necrotic cell death under oxidative stress.
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Affiliation(s)
- Malika Faouzi
- Center for Biomedical Research, The Queen's Medical Center, 1301 Punchbowl Street, Honolulu, HI, 96813, USA,
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Ernst IMA, Fliegert R, Guse AH. Adenine Dinucleotide Second Messengers and T-lymphocyte Calcium Signaling. Front Immunol 2013; 4:259. [PMID: 24009611 PMCID: PMC3756424 DOI: 10.3389/fimmu.2013.00259] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 08/15/2013] [Indexed: 11/14/2022] Open
Abstract
Calcium signaling is a universal signal transduction mechanism in animal and plant cells. In mammalian T-lymphocytes calcium signaling is essential for activation and re-activation and thus important for a functional immune response. Since many years it has been known that both calcium release from intracellular stores and calcium entry via plasma membrane calcium channels are involved in shaping spatio-temporal calcium signals. Second messengers derived from the adenine dinucleotides NAD and NADP have been implicated in T cell calcium signaling. Nicotinic acid adenine dinucleotide phosphate (NAADP) acts as a very early second messenger upon T cell receptor/CD3 engagement, while cyclic ADP-ribose (cADPR) is mainly involved in sustained partial depletion of the endoplasmic reticulum by stimulating calcium release via ryanodine receptors. Finally, adenosine diphosphoribose (ADPR) a breakdown product of both NAD and cADPR activates a plasma membrane cation channel termed TRPM2 thereby facilitating calcium (and sodium) entry into T cells. Receptor-mediated formation, metabolism, and mode of action of these novel second messengers in T-lymphocytes will be reviewed.
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Affiliation(s)
- Insa M A Ernst
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
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