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Zhang Y, Bai H, Zhang W, Gao J, Gao C, Deng T, Liu X, Sun X, Liu Y, Wang N, Wu Y. miR-212/132 attenuates OVA-induced airway inflammation by inhibiting mast cells activation through MRGPRX2 and ASAP1. Exp Cell Res 2023; 433:113828. [PMID: 37875175 DOI: 10.1016/j.yexcr.2023.113828] [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: 01/22/2023] [Revised: 09/25/2023] [Accepted: 10/19/2023] [Indexed: 10/26/2023]
Abstract
Allergic asthma is a chronic inflammatory disease of airways involving complex mechanisms, including MAS-related GPR family member X2 (MRGPRX2) and its orthologue MRGPRB2 on mast cells (MCs). Although miRNAs have been previously shown to related to allergic asthma, the role of miR-212/132 in this process has not been studied. In this study, the predicted pairing of miRNAs and MRGPRX2 (MRGPRB2) mRNAs was carried out by online databases and the function was verify using in vivo and in vitro experiments. Database prediction showed that miR-212/132 interact with MRGPRX2 and MRGPRB2. miR-212/132 mimics alleviated MRGPRB2 mRNA expression as well as pathology changes in lungs and AHR of mice with airway inflammation in vivo. The expression level of MRGPRB2 in the mice lungs after inhaled OVA was also decreased by miR-212/132 mimics. Meanwhile, miR-212/132 inhibited MCs degranulation and cytokines release triggered by C48/80 in vitro. Further, ASAP1 (ARF GTPase-Activating Protein 1) was selected from the junction related pathways using RNAseq and KEGG enrichment. ASAP1 mRNA level was upregulated in airway inflammation and MCs activation and decreased by miR-212/132 mimics. miR-212/132 attenuated OVA-induced airway inflammation by inhibiting MCs activation through MRGPRX2 and ASAP1.
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Affiliation(s)
- Yongjing Zhang
- The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; School of Pharmacy, Xi'an Jiaotong University, Xi'an, China
| | - Haoyun Bai
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, China
| | - Wen Zhang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, China
| | - Jie Gao
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, China
| | - Chang Gao
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, China
| | - Tingting Deng
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, China
| | - Xinyu Liu
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Medical College, Xi'an Jiaotong University, 157 West 5th Road, Xi'an, Shaanxi, China
| | - Xiuzhen Sun
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Medical College, Xi'an Jiaotong University, 157 West 5th Road, Xi'an, Shaanxi, China
| | - Yun Liu
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Medical College, Xi'an Jiaotong University, 157 West 5th Road, Xi'an, Shaanxi, China
| | - Nan Wang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, China.
| | - Yuanyuan Wu
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Medical College, Xi'an Jiaotong University, 157 West 5th Road, Xi'an, Shaanxi, China.
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Thebaine induces anaphylactic reactions via the MRGPRX2 receptor pathway on mast cells. Cell Immunol 2022; 375:104514. [DOI: 10.1016/j.cellimm.2022.104514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/25/2022] [Accepted: 03/25/2022] [Indexed: 11/03/2022]
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Wu X, Zhu Y, Yang M, Zhang J, Lin D. Biological responses of Eisenia fetida towards the exposure and metabolism of tris (2-butoxyethyl) phosphate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 811:152285. [PMID: 34933047 DOI: 10.1016/j.scitotenv.2021.152285] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/04/2021] [Accepted: 12/05/2021] [Indexed: 06/14/2023]
Abstract
The toxicity of various organophosphorus flame retardants (OPFRs) is of increasing concern. However, there is still a lack of research on the toxicity of OPFRs to terrestrial invertebrates and its metabolism in vivo. Herein, earthworms (Eisenia fetida) were exposed to soil spiked with 0, 0.05, 0.5, and 5 mg/kg tris(2-butoxyethyl) phosphate (TBOEP, a typical alkyl OPFRs) for 28 d to study the biological responses to the exposure and metabolism of TBOEP. TBOEP exposure inhibited the activity of acetyl-cholinesterase (64.4-68.6% of that in the control group), increased the energy consumption level, and affected calcium-dependent pathways of E. fetida, which caused a 3.6-12.4% reduction in the weight gain rate (developmental toxicity), a 10.6-69.4% reduction in the number of juveniles (reproduction toxicity), and neurotoxicity to E. fetida. The 5 mg/kg TBOEP exposure caused a significant accumulation of malondialdehyde (1.68 times higher than that in the control group) in E. fetida, which indicated that the balance of oxidation and anti-oxidation of E. fetida was broken. Meanwhile, E. fetida maintained the absorption and metabolic abilities to TBOEP under the environmental condition. The removal rate of soil TBOEP was increased by 25.1-35.5% by the presence of E. fetida. Importantly, TBOEP could accumulate in E. fetida (0.09-76.0 μg/kg) and the activation of cytochrome P450 and glutathione detoxification pathway promoted the metabolism of TBOEP in E. fetida. These findings link the biological responses and metabolic behavior of earthworms under pollution stress and provide fundamental data for the environmental risk assessment and pollution removal of OPFRs in soil.
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Affiliation(s)
- Xinyue Wu
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Ya Zhu
- Zhejiang Provincial Key Laboratory of Watershed Science and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China
| | - Meirui Yang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Jianying Zhang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Daohui Lin
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China.
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Zhang F, Hong F, Wang L, Fu R, Qi J, Yu B. MrgprX2 regulates mast cell degranulation through PI3K/AKT and PLCγ signaling in pseudo-allergic reactions. Int Immunopharmacol 2022; 102:108389. [PMID: 34920312 DOI: 10.1016/j.intimp.2021.108389] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/27/2021] [Accepted: 11/09/2021] [Indexed: 12/24/2022]
Abstract
The G protein-coupled receptor MrgprX2 in mast cells is known to be a crucial receptor for pseudo-allergic reactions. MrgprX2 activation leads to elevated intracellular calcium levels and mast cell degranulation, but the underlying mechanism remains to be elucidated. Herein, we investigated the role of the phosphatidylinositol 3 kinase (PI3K)/serum-threonine kinase (AKT) signaling pathway and phospholipase C gamma (PLCγ) in mast cell degranulation mediated by MrgprX2 in LAD2 human-derived mast cells. The results showed that phosphorylated AKT (p-AKT) and PLCγ up-regulation were accompanied by an increase in intracellular calcium following activation of MrgprX2 by Compound 48/80, an inducer of mast cell degranulation. In contrast, p-AKT and PLCγ were down-regulated and intracellular calcium levels decreased after MrgprX2 knockdown. Mast cell degranulation was clearly suppressed; however, inhibiting PI3K and PLCγ phosphorylation did not influence MrgprX2 expression. The increase in calcium concentration was suppressed and mast cell degranulation was weakened. Furthermore, by inhibiting PI3K and PLCγ phosphorylation in animals, the allergic symptoms caused by C48/80 were obviously reduced. We deduced that during the mast cell degranulation observed in pseudoallergic reactions, MrgprX2 regulated intracellular calcium levels via the PI3K/AKT and PLCγ pathways.
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Affiliation(s)
- Fan Zhang
- Jiangsu Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 21198, China; Research Center for Traceability and Standardization of TCMs, China Pharmaceutical University, Nanjing 211198, China
| | - Fang Hong
- Jiangsu Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 21198, China; Research Center for Traceability and Standardization of TCMs, China Pharmaceutical University, Nanjing 211198, China
| | - Lu Wang
- Jiangsu Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 21198, China; Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, China
| | - Renjie Fu
- Jiangsu Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 21198, China
| | - Jin Qi
- Jiangsu Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 21198, China.
| | - Boyang Yu
- Jiangsu Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 21198, China; Research Center for Traceability and Standardization of TCMs, China Pharmaceutical University, Nanjing 211198, China.
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Zhang Y, Xue Z, Hu S, Bai H, Wang J, Wang N. Chrysin Inhibits Pseudo-allergic Reaction by Suppressing Mitochondrial STAT3 Activation via MAS-Related GPR Family Member X2. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6569-6577. [PMID: 34100606 DOI: 10.1021/acs.jafc.1c02565] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Chrysin, one of the most pharmacologically active natural flavonoids, has been extracted from various plants. Mast cells are an important part of innate immunity-mediating anaphylaxis. Pseudo-allergic reactions are currently believed to be associated with the MAS-related GPR family member X2 (MrgX2). In this study, the anti-pseudo allergy effect of chrysin and its underlying mechanisms were studied in vitro and in vivo. Chrysin inhibited passive cutaneous anaphylaxis and systemic pseudo-allergy in vivo. LAD2 cell degranulation, calcium ion (Ca2+) influx, and adenosine 5'-triphosphate (ATP) content were significantly suppressed in a dose-dependent manner. Chrysin suppressed pseudo-allergic reactions through the PLC/IP3/Ca2+ and ERK/STAT3 serine 727 pathways downstream of MrgX2. Therefore, mitochondrial ATP, but not glycolysis, is vital for pseudo-allergic reactions mediated by MrgX2. This study provides new insights for the treatment of pseudo-allergy.
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Affiliation(s)
- Yongjing Zhang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710049, China
| | - Zhuoyin Xue
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710049, China
| | - Shiling Hu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710049, China
| | - Haoyun Bai
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jue Wang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710049, China
| | - Nan Wang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710049, China
- Pazhou Lab, Guangzhou 510330, China
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Gong Y, Li HX, Guo RH, Widowati W, Kim YH, Yang SY, Kim YR. Anti-allergic Inflammatory Components from the Leaves of Piper crocatum Ruiz & Pav. Biol Pharm Bull 2021; 44:245-250. [PMID: 33518676 DOI: 10.1248/bpb.b20-00726] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Piper crocatum Ruiz & Pav. (P. crocatum), a traditional medicinal plant, has been shown to possess various pharmacological activities, including anticancer activity, antioxidant activity, antibacterial activity, anti-hyperglycemic activity, anti-allergic inflammatory activity and others. To identify the potential anti-allergic inflammatory effective constituents of P. crocatum, 13 single compounds were isolated from the methanol extract of P. crocatum leaves, and their structures were identified by contrasting their NMR spectroscopic data and previously published papers. First, the anti-allergic inflammatory activities of these single compounds were examined by accessing immune function related biomarkers such as nitric oxide (NO) and β-hexosaminidase. We found that the methanol extract and catechaldehyde (compound 1) potently suppressed NO production. Additionally, Western blot analysis showed that P. crocatum methanol extract and compound 1 suppressed the production of NO by reducing inducible nitric oxide synthase (iNOS) expression in lipopolysaccharide (LPS)-induced RAW264.7 macrophages. Consistent with these observations, P. crocatum methanol extract and compound 1 remarkably decreased β-hexosaminidase release from RBL-2H3 cells stimulated with 2,4-dinitrophenylated bovine serum albumin (DNP-BSA)-specific immunoglobulin E (IgE) antibodies. Furthermore, 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) assay indicated that P. crocatum methanol extract and compound 1 exhibited no cytotoxicity to RAW264.7 and RBL-2H3 cells. Based on these findings, compound 1 is suggested as an active anti-allergic inflammatory component of P. crocatum.
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Affiliation(s)
- Yue Gong
- College of Pharmacy and Research Institute of Drug Development, Chonnam National University
| | - Hong Xu Li
- College of Pharmacy, Chungnam National University
| | - Rui Hong Guo
- College of Pharmacy and Research Institute of Drug Development, Chonnam National University
| | - Wahyu Widowati
- Medical Research Centre, Faculty of Medicine, Maranatha Christian University
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University
| | | | - Young Ran Kim
- College of Pharmacy and Research Institute of Drug Development, Chonnam National University
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Venugopal A, Mondal S, Ranganatha KS, Datta D, Kumar NS, Swamy MJ. Purification and biochemical/biophysical characterization of two hexosaminidases from the fresh water mussel, Lamellidens corrianus. Int J Biol Macromol 2020; 149:754-766. [PMID: 31987953 DOI: 10.1016/j.ijbiomac.2020.01.241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/22/2020] [Accepted: 01/23/2020] [Indexed: 01/18/2023]
Abstract
Two thermostable isoforms of a hexosaminidase were purified to homogeneity from the soluble extract of fresh water mussel Lamellidens corrianus, employing a variety of chromatographic techniques. Hexosaminidase A (HexA) is a heterodimer with subunit masses of ~80 and 55 kDa. Hexosaminidase B (HexB) is a homodimer with a subunit mass of 55-60 kDa. Circular dichroism spectroscopic studies indicated that both HexA and HexB contain β-sheet as the major secondary structural component with considerably lower content of α-helix. The temperature and pH optima of both the isoforms were found to be 60 °C and 4.0, respectively. The IC50 values for HexA with N-acetyl-d-galactosamine, N-acetyl-d-glucosamine, d-galactosamine, d-glucosamine, methyl α-d-mannopyranoside and d-mannose are 3.7, 72.8, 307, 216, 244 and 128 mM, respectively, whereas the corresponding IC50 values for HexB were estimated as 5.1, 61, 68, 190, 92 and 133 mM, respectively. Kinetic parameters KM and Vmax for HexA and B with p-nitrophenyl N-acetyl-β-d-glucosaminide are 4 mM, 0.23 μmol·min-1·mL-1 and 2.86 mM, 0.29 μmol·min-1·mL-1, respectively, and with p-nitrophenyl N-acetyl-β-d-galactosaminide are 4.5 mM, 0.054 μmol·min-1·mL-1 and 1.4 mM, 0.14 μmol·min-1·mL-1, respectively. GalNAc inhibited both isoforms in a non-competitive manner, whereas a mixed mode of inhibition was observed with GlcNAc with both forms.
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Affiliation(s)
| | - Saradamoni Mondal
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | | | - Debparna Datta
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Nadimpalli Siva Kumar
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India.
| | - Musti J Swamy
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India.
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Lv Y, Fu J, Jia Q, Dong H, Han S, Li L, He L. Liquid Chromatography Tandem Mass Spectrometry Based Label-Free Quantification Method for Assessment of Allergen-Induced Anaphylactoid Reactions. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:856-863. [PMID: 32125841 DOI: 10.1021/jasms.9b00104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Mast cells are essential in mediating inflammatory processes. When activated, mast cells can rapidly release characteristic granules and various mediators into the interstitium. Tryptase (TPS) and β-hexosaminidase (HEXB) are typical protease mediators stored in granules and released upon activation. They have been recognized as important biomarkers of anaphylaxis, and the released level is associated with the severity of allergic reactions. In this study, a sensitive, accurate, and selective liquid chromatography tandem mass spectrometry (LC-MS/MS) method for simultaneously quantifying the two biomarkers was developed and validated in LAD2 cell culture supernatant, and P14R was used as internal standard. Good linearity was observed in the range of 50-2500 ng/mL for TPS and 10-2000 ng/mL for HEXB both with R2 > 0.99. The matrix effect and recovery were both within acceptable limits. We quantified TPS and HEXB released from Laboratory of Allergic Disease 2 (LAD2) mast cells treated with several potential allergens, and the results demonstrate that the method can be used to investigate TPS and HEXB levels in LAD2 mast cell model during allergy research. We anticipate our approach to be a robust and sensitive assessment method for more biomarkers with similar kinetics characteristics and to be a major tool of allergic drug assessment or antiallergic drug development in research.
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Affiliation(s)
- Yanni Lv
- School of Pharmacy, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an 710061, China
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, Wisconsin 53705, United States
| | - Jia Fu
- School of Pharmacy, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an 710061, China
| | - Qianqian Jia
- School of Pharmacy, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an 710061, China
| | - Hengtao Dong
- Shimadzu (China) Co., Ltd., 56# Jinye First Road, Xi'an 710000, China
| | - Shengli Han
- School of Pharmacy, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an 710061, China
| | - Lingjun Li
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, Wisconsin 53705, United States
| | - Langchong He
- School of Pharmacy, Xi'an Jiaotong University, 76# Yanta West Road, Xi'an 710061, China
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