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Ferdous J, Bhuia MS, Chowdhury R, Rakib AI, Aktar MA, Al Hasan MS, Melo Coutinho HD, Islam MT. Pharmacological Activities of Plant-Derived Fraxin with Molecular Mechanisms: A Comprehensive Review. Chem Biodivers 2024; 21:e202301615. [PMID: 38506600 DOI: 10.1002/cbdv.202301615] [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: 10/17/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 03/21/2024]
Abstract
Fruits and vegetables serve not only as sources of nutrition but also as medicinal agents for the treatment of diverse diseases and maladies. These dietary components are significant resources of phytochemicals that demonstrate therapeutic properties against many illnesses. Fraxin is a naturally occurring coumarin glycoside mainly present in various species of Fraxinus genera, having a multitude of therapeutic uses against various diseases and disorders. This study focuses to investigate the pharmacological activities, botanical sources, and biopharmaceutical profile of the phytochemical fraxin based on different preclinical and non-clinical studies to show the scientific evidence and to evaluate the underlying molecular mechanisms of the therapeutic effects against various ailments. For this, data was searched and collected (as of February 15, 2024) in a variety of credible electronic databases, including PubMed/Medline, Scopus, Springer Link, ScienceDirect, Wiley Online, Web of Science, and Google Scholar. The findings demonstrated favorable outcomes in relation to a range of diseases or medical conditions, including inflammation, neurodegenerative disorders such as cerebral ischemia-reperfusion (I/R) and depression, viral infection, as well as diabetic nephropathy. The phytochemical also showed protective effects such as osteoprotective, renoprotective, pulmoprotective, hepatoprotective, and gastroprotective effects due to its antioxidant capacity. Fraxin has a great capability to diminish oxidative stress-related damage in different organs by stimulating the antioxidant enzymes, downregulating nuclear factor kappa B and NLRP3, and triggering the Nrf2/ARE signaling pathways. Fraxin exhibited poor oral bioavailability because of reduced absorption and a wide distribution into tissues of different organs. However, extensive research is required to decipher the biopharmaceutical profiles, and clinical studies are necessary to establish the efficacy of the natural compound as a reliable therapeutic agent.
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Affiliation(s)
- Jannatul Ferdous
- Department of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh
- BioLuster Research Center, Gopalganj, 8100, Dhaka, Bangladesh
| | - Md Shimul Bhuia
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh
- BioLuster Research Center, Gopalganj, 8100, Dhaka, Bangladesh
| | - Raihan Chowdhury
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh
| | - Asraful Islam Rakib
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh
| | - Mst Asma Aktar
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh
| | - Md Sakib Al Hasan
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh
| | | | - Muhammad Torequl Islam
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh
- BioLuster Research Center, Gopalganj, 8100, Dhaka, Bangladesh
- Pharmacy Discipline, Khulna University, Khulna, 9208, Bangladesh
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Dai Z, Hu J, Luo Z, Xiao J. Downregulation of circ_0035292 Alleviates LPS-Induced WI-38 Cell Injury via Targeting miR-494-3p/TLR4 Pathway in Infantile Pneumonia. Biochem Genet 2024; 62:915-930. [PMID: 37500967 DOI: 10.1007/s10528-023-10455-0] [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: 04/12/2023] [Accepted: 07/12/2023] [Indexed: 07/29/2023]
Abstract
Circular RNAs (circRNAs) have been confirmed to mediate infantile pneumonia development. In this, we investigated the role and new mechanism of circ_0035292 regulating infantile pneumonia progression. Lipopolysaccharide (LPS)-treated WI-38 cells were used to mimic infantile pneumonia cell injury models. Quantitative real-time PCR was used to measure circ_0035292, microRNA (miR)-494-3p and toll-like receptor 4 (TLR4). Cell proliferation and apoptosis were assessed by MTT assay, EdU assay, and flow cytometry. Protein expression was tested using western blot analysis. Inflammation and oxidative stress were evaluated by measuring IL-6, IL-1β, MDA and SOD levels using ELISA assay and corresponding kits. RNA interaction was confirmed by dual-luciferase reporter assay and RIP assay. Circ_0035292 had elevated expression in infantile pneumonia patients and LPS-induced WI-38 cells. Silenced circ_0035292 could enhance WI-38 cell proliferation, while suppress apoptosis, inflammation and oxidative stress under LPS treatment. Mechanically, circ_0035292 targeted miR-494-3p to positively regulate TLR4. The rescue experiments indicated that miR-494-3p inhibitor abolished the function of circ_0035292 knockdown, and TLR4 overexpression reversed the inhibitory effect of miR-494-3p on LPS-induced WI-38 cell injury. Circ_0035292 might be a potential target for infantile pneumonia treatment, which knockdown could relieve LPS-induced cell injury via the regulation of miR-494-3p/TLR4 axis.
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Affiliation(s)
- Zhenzhao Dai
- Department of Pediatrics, Affiliated Hospital of Jinggangshan University, Ji'an, Jiangxi, China
| | - Jiansheng Hu
- Jinggangshan University, 28 Xueyuan Road, Qingyuan District, Ji'an, 343000, Jiangxi, China
| | - Zhiying Luo
- Jinggangshan University, 28 Xueyuan Road, Qingyuan District, Ji'an, 343000, Jiangxi, China
| | - Jianhua Xiao
- Jinggangshan University, 28 Xueyuan Road, Qingyuan District, Ji'an, 343000, Jiangxi, China.
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Ju Y, Sun X, Xu G, Tai Q, Gao W. Annexin A1 peptide Ac2-26 mitigates ventilator-induced lung injury in acute respiratory distress syndrome rats and partly depended on the endothelial nitric oxide synthase pathway. Acta Cir Bras 2023; 37:e371203. [PMID: 36651428 PMCID: PMC9974014 DOI: 10.1590/acb371203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 11/22/2022] [Indexed: 01/15/2023] Open
Abstract
PURPOSE Although mechanical ventilation is an essential support for acute respiratory distress syndrome (ARDS), ventilation also leads to ventilator-induced lung injury (VILI). This study aimed to estimate the effect and mechanism of Annexin A1 peptide (Ac2-26) on VILI in ARDS rats. METHODS Thirty-two rats were randomized into the sham (S), mechanical ventilation (V), mechanical ventilation/Ac2-26 (VA), and mechanical ventilation/Ac2-26/L-NIO (VAL) groups. The S group only received anesthesia, and the other three groups received endotoxin and then ventilation for 4 h. Rats in the V, VA and VAL groups received saline, Ac2-26, and A c2-26/N5-(1-iminoethyl)-l-ornithine (L-NIO), respectively. RESULTS All indexes deteriorated in the V, VA and VAL groups compared with the S group. Compared with V group, the PaO2/FiO2 ratio was increased, but the wet-to-dry weight ratio and protein levels in bronchoalveolar lavage fluid were decreased in the VA group. The inflammatory cells and proinflammatory factors were reduced by Ac2-26. The oxidative stress response, lung injury and apoptosis were also decreased by Ac2-26 compared to V group. All improvements of Ac2-26 were partly reversed by L-NIO. CONCLUSIONS Ac2-26 mitigates VILI in ARDS rats and partly depended on the endothelial nitric oxide synthase pathway.
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Affiliation(s)
- Yingnan Ju
- MD. Harbin Medical University – Department of Intensive Care Unit – Third Clinical College – Harbin, China
| | - Xikun Sun
- MS. Harbin Medical University – Department of Anesthesiology – The Second Affiliated Hospital – Harbin, China
| | - Guangxiao Xu
- MS. Harbin Medical University – Department of Anesthesiology – The Second Affiliated Hospital – Harbin, China
| | - Qihang Tai
- MS. Harbin Medical University – Department of Anesthesiology – The Second Affiliated Hospital – Harbin, China
| | - Wei Gao
- MS. Harbin Medical University – Department of Anesthesiology – The Second Affiliated Hospital – Harbin, China.,Corresponding author:
- (86-0451) 86605029
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Liang Y, Miao Y, Xiang J. Circular RNA circESPL1 knockdown alleviates lipopolysaccharide (LPS)-induced lung cell injury via sponging miR-326 to regulate MAPK14. Int Immunopharmacol 2022; 112:109146. [PMID: 36030691 DOI: 10.1016/j.intimp.2022.109146] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/25/2022] [Accepted: 08/05/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Infantile pneumonia (IP) is a common inflammatory disease, which brings a heavy burden to young children's health. Previous studies suggested that circular RNA (circRNA) hsa_circ_0026579 (also called circESPL1) was significantly upregulated in pneumonia patients, which was associated with the disease severity. This subject aimed to explore the functional effects and potential regulatory mechanism of circESPL1 on lipopolysaccharide (LPS)-induced lung cell injury. METHODS WI-38 and MRC-5 cells were stimulated by LPS to mimic the inflammatory injury model. CircESPL1, microRNA-326 (miR-326), and Mitogen-Activated Protein Kinase 14 (MAPK14)levels were measured using real-time quantitative polymerase chain reaction (RT-qPCR). Cell Counting Kit-8 (CCK-8), 5-ethynyl-2'-deoxyuridine (EdU), and flow cytometry assays were performed to assess cell proliferation and apoptosis. Western blot analysis of B-cell lymphoma-2 (Bcl-2), Bcl-2 related X protein (Bax), C-caspase 3, and MAPK14 protein levels. Tumor necrosis factor-α (TNF-α), Interleukin-6 (IL-6), and IL-1β levels were examined using an Enzyme-linked immunosorbent assay (ELISA). Using Starbase analysis, the binding between miR-326 and circESPL1 or MAPK14 was predicted, followed by confirmation using a dual-luciferase reporter and RNA Immunoprecipitation (RIP) assays. RESULTS Increased circESPL1 and MAPK14, and reduced miR-326 were observed in serum samples from preeclampsia sufferers and LPS-treated lung cells (P < 0.05). Furthermore, circESPL1 deficiency overturned LPS-mediated cell proliferation, apoptosis, and inflammatory response in vitro (P < 0.05). In terms of molecular mechanisms, circESPL1 worked as a sponge of miR-326, and miR-326 absence reversed the protective role of circESPL1 silencing on LPS-triggered lung cell injury (P < 0.05). Also, miR-326 directly targeted MAPK14, and MAPK14 overexpression abolished miR-326-mediated impacts under LPS treatment (P < 0.05). CONCLUSION CircESPL1 knockdown might attenuate LPS-caused lung cell injury by regulating the miR-326/ MAPK14 axis, providing useful insight for exploring a novel therapeutic approach for IP.
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Affiliation(s)
- Yamei Liang
- Department of Pediatrics, Taizhou First People's Hospital, China
| | - Yingying Miao
- Department of Pediatrics, Taizhou First People's Hospital, China
| | - Jingjing Xiang
- Department of Pediatrics, Taizhou First People's Hospital, China.
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Zhang D, Ji P, Sun R, Zhou H, Huang L, Kong L, Li W, Li W. Ginsenoside Rg1 attenuates LPS-induced chronic renal injury by inhibiting NOX4-NLRP3 signaling in mice. Biomed Pharmacother 2022; 150:112936. [PMID: 35421784 DOI: 10.1016/j.biopha.2022.112936] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/27/2022] [Accepted: 04/06/2022] [Indexed: 11/22/2022] Open
Abstract
Chronic renal injury (CRI) is a common pathological damage in chronic renal disease, and the therapeutic options for preventing its progression are limited at present. Ginsenoside Rg1 (Rg1) is reported to have a protective effect on renal injury by improving oxidative stress and inflammation. Lipopolysaccharide (LPS) plays important roles in inducing inflammatory and high-dose LPS is often used to perform acute renal injury. However, little is known about the effect of low-dose LPS on CRI, and the protective effect of Rg1 against chronic LPS-induced CRI. Here, we reported the protective effect and mechanism of Rg1 against LPS-induced CRI in mice. In this study, the results demonstrated that low-dose LPS (0.25 mg/kg) exposure for 14 days significantly induced renal function impairment and renal injury and fibrosis. Meanwhile, LPS exposure significantly increased reactive oxygen species (ROS) generation, NADPH oxidase 4 (NOX4) and NLRP3 inflammasome expression in renal cortex. However, treatment with Rg1, tempol (a superoxide dismutase mimetic), and apocynin (a NOX inhibitor) significantly improved renal function impairment and renal fibrosis, and significantly decreased the levels of TGF-β, IL-1β, KIM-1, β-Gal, and collagen IV in the kidneys. And Rg1 treatment also significantly reduced ROS generation and inhibited the activation of NOX4 and NLRP3 inflammasome. Overall, these results suggest that Rg1 treatment can ameliorate LPS-induced chronic kidney injury and renal fibrosis, the mechanisms may be involved in reducing NOX2-mediated oxidative stress and inhibiting NLRP1 inflammasome.
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Affiliation(s)
- Duoduo Zhang
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China
| | - Pengmin Ji
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China
| | - Ran Sun
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China
| | - Huimin Zhou
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China
| | - Lei Huang
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China
| | - Liangliang Kong
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China
| | - Weiping Li
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China; Anqing Medical and Pharmaceutical College, Anqing 246052, Anhui, China.
| | - Weizu Li
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Ministry of Education, Hefei 230032, Anhui, China; Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei 230032, Anhui, China.
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Yu Y, Yang T, Ding Z, Cao Y. Circ_0026579 alleviates LPS-induced WI-38 cells inflammation injury in infantile pneumonia. Innate Immun 2022; 28:37-48. [PMID: 35142578 PMCID: PMC8841632 DOI: 10.1177/17534259211069104] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Circular RNA (circRNA) represents an important regulator in infantile pneumonia progression. To clarify the role of circ_0026579 in this disease, LPS was used to treat WI-38 cells to mimic inflammation injury. The levels of inflammatory factors were determined by ELISA assay. Cell proliferation and apoptosis were measured by MTT assay, EdU staining and flow cytometry. The protein levels of cyclinD1, cleaved-caspase-3 and insulin-like growth factor 2 (IGF2) were examined using Western blot analysis. Cell oxidative stress was assessed by detecting MDA level and SOD activity. The expression of circ_0026579, miR-24-3p and IGF2 were analyzed using quantitative real-time PCR, and the interaction between miR-24-3p and circ_0026579 or IGF2 was confirmed by dual-luciferase reporter assay and RIP assay. LPS induced inflammation in WI-38 cells. Circ_0026579 expression was promoted in LPS-induced WI-38 cells, and its knockdown alleviated LPS-induced WI-38 cells inflammation. MiR-24-3p was sponged by circ_0026579, and its expression was reduced by LPS. MiR-24-3p inhibitor reversed the regulation of circ_0026579 knockdown on LPS-induced WI-38 cells inflammation. IGF2 was targeted by miR-24-3p, and its expression could be enhanced by LPS. MiR-24-3p relieved the inflammation of WI-38 cells which could be abolished by IGF2 overexpression. Circ_0026579 positively regulated IGF2 expression through sponging miR-24-3p. Circ_0026579 knockdown alleviated LPS-induced WI-38 cells inflammation by miR-24-3p/IGF2 axis, suggesting that circ_0026579 might contribute to infantile pneumonia progression.
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Affiliation(s)
- Yang Yu
- Department of Neonatology, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Tingting Yang
- Department of Neonatology, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Zhaozheng Ding
- Department of Paediatric surgery, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
| | - Yuan Cao
- Department of Paediatric surgery, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, China
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Ju Y, Qiu L, Sun X, Liu H, Gao W. Ac2-26 mitigated acute respiratory distress syndrome rats via formyl peptide receptor pathway. Ann Med 2021; 53:653-661. [PMID: 34008449 PMCID: PMC8143635 DOI: 10.1080/07853890.2021.1925149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 04/28/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Acute respiratory distress syndrome (ARDS) is characterized by severe local and systemic inflammation. Ac2-26, an Annexin A1 Peptide, can reduce the lung injury induced by reperfusion via the inhibition of inflammation. The present study aims to evaluate the effect and mechanism of Ac2-26 in ARDS. METHODS Thirty-two rats were anaesthetized and randomized into four groups: sham (S), ARDS (A), ARDS/Ac2-26 (AA), and ARDS/Ac2-26/BOC-2 (AAB) groups. Rats in the S group received saline for intratracheal instillation, while rats in the other three groups received endotoxin for intratracheal instillation, in order to prepare the ARDS and inject the saline, Ac2-26, and Ac2-26 combined with BOC-2. After 24 h, the PaO2/FiO2 ratio was calculated. The lung tissue wet-to-dry weight ratio and the protein level in bronchoalveolar lavage fluid (BALF) were tested. Then, the cytokines in BALF and serum, and the inflammatory cells in BALF were investigated. Afterwards, the oxidative stress response and histological injury was evaluated. Subsequently, the epithelium was cultured and analyzed to estimate the effect of Ac2-26 on apoptosis. RESULTS Compared to the S group, all indexes worsened in the A, AA, and AAB groups. Furthermore, compared to the S group, Ac2-26 significantly improved the lung injury and alveolar-capillary permeability, and inhibited the oxidative stress response. In addition, Ac2-26 reduced the local and systemic inflammation through the regulation of pro- and anti-inflammatory cytokines, and the decrease in inflammatory cells in BALF. Moreover, Ac2-26 inhibited the epithelium apoptosis induced by LPS through the modulation of apoptosis-regulated proteins. The protective effect of Ac2-26 on ARDS was partially reversed by the FPR inhibitor, BOC-2. CONCLUSION Ac2-26 reduced the lung injury induced by LPS, promoted alveolar-capillary permeability, ameliorated the local and systemic inflammation, and inhibited the oxidative stress response and apoptosis. The protection of Ac2-26 on ARDS was mainly dependent on the FPR pathway.
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Affiliation(s)
- Yingnan Ju
- Department of ICU, The Cancer Hospital of Harbin Medical University, Harbin, China
| | - Lin Qiu
- Department of Anesthesia, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xikun Sun
- Department of Anesthesia, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hengyu Liu
- Department of Anesthesia, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wei Gao
- Department of Anesthesia, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Disrupting RhoA activity by blocking Arhgef3 expression mitigates microglia-induced neuroinflammation post spinal cord contusion. J Neuroimmunol 2021; 359:577688. [PMID: 34390950 DOI: 10.1016/j.jneuroim.2021.577688] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 07/23/2021] [Accepted: 08/02/2021] [Indexed: 01/10/2023]
Abstract
Excess inflammatory microglia activation deteriorates the pathological degree of spinal cord injury (SCI). We here employed microglia samples in vitro and murine model in vivo to trace the role of inhibition of Arhgef3 in inflammatory response post SCI. From the specimen analysis of lipopolysaccharide (LPS)-induced inflammatory microglia, we found that Arhgef3 expression was positively relative to microglia activation. In vitro, LPS caused the microglia inflammatory activation and induced upregulation of the Arhgef3 expression. Interestingly, presence of Arhgef3 could activate RhoA through promoting Rho GTPases, but silencing of Arhgef3 decreased RhoA activation and inhibited the microglia inflammation. Moreover, disruption of Arhgef3 inhibited the GTP-RhoA, resulted in a suppression of proinflammatory cytokines, and alleviated the LPS-elicited inflammatory genes expression. Moreover, artificially decreasing Arhgef3 expression remarkedly reduced ROS generation after LPS treatment. In vivo of a mouse mechanical contusion-induced SCI model, inhibition of Arhgef3 reduced the ratio of GTP-RhoA/Total-RhoA, and prevented SCI via mitigating the microglial inflammatory phenotype and decreased secondary neurological injury. Besides, inhibition of Arhgef3 prevented alleviated the degree of demyelination but did not affect neuronal regeneration. Meaningfully, absence of Arhgef3 improved mouse locomotor recovery post SCI. Taken together, Arhgef3 involves the microglial activation and inflammatory response following neural injury, and targeted disrupting of which may indicate a promising therapeutic direction in preventing SCI.
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Fang X, Zhang S, Wang Z, Zhou J, Qi C, Song J. Cigarette smoke extract combined with LPS down-regulates the expression of MRP2 in chronic pulmonary inflammation may be related to FXR. Mol Immunol 2021; 137:174-186. [PMID: 34273652 DOI: 10.1016/j.molimm.2021.06.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/13/2021] [Accepted: 06/25/2021] [Indexed: 01/19/2023]
Abstract
The transporter multidrug resistance protein 2 (MRP2) plays an important role in chronic pulmonary inflammation by transporting cigarette smoke and other related inflammatory mediators. However, it is not completely clear whether pulmonary inflammation caused by cigarette smoke extract (CSE) and lipopolysaccharide (LPS) is related to MRP2 and its signal factors. In this study, CSE combined with LPS was used to establish an inflammation model in vivo and in vitro. We found that compared with the control group, after CSE combined with LPS treatment, the expression of MRP2 in rat lung tissue in vivo and human alveolar cell line in vitro was down-regulated, while the expression of inflammatory factors was up-regulated. Through silencing and overexpression of FXR, it was found that silent FXR could down-regulate MRP2 and up-regulate the expression of inflammatory factors. On the contrary, overexpression of FXR could up-regulate MRP2 and down-regulate the expression of inflammatory factors. Our results show that CSE combined with LPS can down-regulate the expression of MRP2 under inflammatory conditions, and the down-regulation of MRP2 expression may be achieved partly through the FXR signal pathway.
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Affiliation(s)
- Xin Fang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Shuyi Zhang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Zihao Wang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Jian Zhou
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Chuanzong Qi
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Jue Song
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China.
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10
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Fang X, Wang Z, Qi C, Zhou J, Zhang S, Song J. The changes of MRP2 expression in three kinds of pulmonary inflammation models: the downregulation occurred in cigarette smoke extract (CSE) stimulation group and CSE plus LPS stimulation group, unchanged in LPS stimulation group. Toxicol Mech Methods 2021; 31:413-424. [PMID: 33752573 DOI: 10.1080/15376516.2021.1903638] [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: 11/16/2020] [Revised: 03/10/2021] [Accepted: 03/10/2021] [Indexed: 01/07/2023]
Abstract
The transporter multidrug resistance protein 2 (MRP2) can transport some tobacco carcinogens and plays an important role in the transport of mediators related to pulmonary inflammatory diseases. However, it is not fully understood whether the pulmonary inflammation caused by cigarette smoke extract (CSE) and lipopolysaccharide (LPS) is related to the regulation of MRP2. In this study, CSE and LPS were used alone and in combination as stimuli to induce pulmonary inflammation. In addition, the establishment of a pulmonary inflammation model was verified by animal experiments in vivo. We found that compared with those in the control group, the expression of MRP2 protein was downregulated and the expression of inflammatory cytokines was upregulated in pulmonary inflammation in the CSE group and the CSE combined with LPS group. However, there was almost no change in the expression of MRP2 stimulated by LPS alone. Our results show that CSE and CSE combined with LPS downregulate the expression of MRP2 under inflammatory conditions, while LPS has almost no effect on the expression of MRP2 under inflammatory conditions. The in vivo experimental results of CSE combined with LPS were consistent with the cellular results of CSE combined with LPS, which provides a model and basis for other studies of the role of MRP2 in pulmonary inflammation.
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Affiliation(s)
- Xin Fang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Zihao Wang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Chuanzong Qi
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Jian Zhou
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Shuyi Zhang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Jue Song
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
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11
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Dapk1 promoted inflammation of infantile pneumonia by p38MAPK/NF-κB signaling pathway. Mol Cell Toxicol 2021. [DOI: 10.1007/s13273-021-00136-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Xia S, Yu W, Menden H, Younger ST, Sampath V. FOXC2 Autoregulates Its Expression in the Pulmonary Endothelium After Endotoxin Stimulation in a Histone Acetylation-Dependent Manner. Front Cell Dev Biol 2021; 9:657662. [PMID: 34017833 PMCID: PMC8129010 DOI: 10.3389/fcell.2021.657662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 04/12/2021] [Indexed: 12/26/2022] Open
Abstract
The innate immune response of pulmonary endothelial cells (EC) to lipopolysaccharide (LPS) induces Forkhead box protein C2 (FOXC2) activation through Toll Like Receptor 4 (TLR4). The mechanisms by which FOXC2 expression is regulated in lung EC under LPS stimulation remain unclear. We postulated that FOXC2 regulates its own expression in sepsis, and its transcriptional autoregulation directs lymphatic EC cell-fate decision. Bioinformatic analysis identified potential FOXC2 binding sites in the FOXC2 promoter. In human lung EC, we verified using chromatin immunoprecipitation (ChIP) and luciferase assays that FOXC2 bound to its own promoter and stimulated its expression after LPS stimulation. Chemical inhibition of histone acetylation by garcinol repressed LPS-induced histone acetylation in the FOXC2 promoter region, and disrupted LPS-mediated FOXC2 binding and transcriptional activation. CRISPR/dCas9/gRNA directed against FOXC2-binding-element (FBE) suppressed LPS-stimulated FOXC2 binding and autoregulation by blocking FBEs in the FOXC2 promoter, and repressed expression of lymphatic EC markers. In a neonatal mouse model of sterile sepsis, LPS-induced FOXC2 binding to FBE and FOXC2 expression in lung EC was attenuated with garcinol treatment. These data reveal a new mechanism of LPS-induced histone acetylation-dependent FOXC2 autoregulation.
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Affiliation(s)
- Sheng Xia
- Department of Pediatrics, Children's Mercy Kansas City, MO, United States
| | - Wei Yu
- Department of Pediatrics, Children's Mercy Kansas City, MO, United States
| | - Heather Menden
- Department of Pediatrics, Children's Mercy Kansas City, MO, United States
| | - Scott T Younger
- Center for Pediatric Genomic Medicine, Children's Mercy Kansas City, MO, United States
| | - Venkatesh Sampath
- Department of Pediatrics, Children's Mercy Kansas City, MO, United States
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13
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Li Q, Tan Y, Chen S, Xiao X, Zhang M, Wu Q, Dong M. Irisin alleviates LPS-induced liver injury and inflammation through inhibition of NLRP3 inflammasome and NF-κB signaling. J Recept Signal Transduct Res 2020; 41:294-303. [PMID: 32814473 DOI: 10.1080/10799893.2020.1808675] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lipopolysaccharide (LPS) provokes severe inflammation and cell death in sepsis, with liver being the major affected organ. Up-to-date, neither the mechanism of action nor target treatment is readily available for LPS-induced liver injury. This study examined the effect of irisin, an endogenous hormonal peptide, on LPS-induced liver injury using animal and cell models, and the mechanism involved with a special focus on pyroptosis. Irisin is known to regulate glucose metabolism, inflammation, and immune response, while our earlier work denoted the anti-inflammatory and anti-apoptotic properties for irisin. Inflammatory factors and AST/ALT were also detected. Pyroptosis, apoptosis, and reactive oxygen species (ROS) were evaluated using PI staining, TUNEL staining, DCFH-DA fluorescence, and western blot, respectively. Our results indicated that irisin attenuated LPS-induced liver injury and release of inflammatory cytokines. Increased activity of NLRP3 inflammasome was discovered in LPS-challenged Raw264.7 cells, along with elevated levels of inflammation and apoptosis, the effects of which were mediated by activation of ROS and nuclear factor κB (NF-κB) signaling. These changes were reversed following irisin treatment. Our study demonstrated that irisin countered LPS-mediated liver injury via inhibiting apoptosis, NLRP3 inflammasome activation and NF-κB signaling. These findings revealed the role of irisin as a promising new anti-pyroptosis/apoptosis agent to reconcile the onset and progression of septic liver injury.
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Affiliation(s)
- Qian Li
- Department of Emergency Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ying Tan
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou
| | - Sainan Chen
- Department of Emergency Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaochan Xiao
- Department of Emergency Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Mingming Zhang
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qi Wu
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Maolong Dong
- Department of Emergency Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, China
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14
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Short-Term versus Long-Term Culture of A549 Cells for Evaluating the Effects of Lipopolysaccharide on Oxidative Stress, Surfactant Proteins and Cathelicidin LL-37. Int J Mol Sci 2020; 21:ijms21031148. [PMID: 32050475 PMCID: PMC7036965 DOI: 10.3390/ijms21031148] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/02/2020] [Accepted: 02/07/2020] [Indexed: 12/20/2022] Open
Abstract
Alveolar epithelial type II (ATII) cells and their proper function are essential for maintaining lung integrity and homeostasis. However, they can be damaged by lipopolysaccharide (LPS) during Gram-negative bacterial infection. Thus, this study evaluated and compared the effects of LPS on short and long-term cultures of A549 cells by determining the cell viability, levels of oxidative stress and antimicrobial peptide cathelicidin LL-37 and changes in the expression of surfactant proteins (SPs). Moreover, we compared A549 cell response to LPS in the presence of different serum concentrations. Additionally, the effect of N-acetylcysteine (NAC) on LPS-induced oxidative stress as a possible treatment was determined. Our results indicate that A549 cells are relatively resistant to LPS and able to maintain integrity even at high LPS concentrations. Their response to endotoxin is partially dependent on serum concentration. NAC failed to lower LPS-induced oxidative stress in A549 cells. Finally, LPS modulates SP gene expression in A549 cells in a time dependent manner and differences between short and long-term cultures were present. Our results support the idea that long-term cultivation of A549 cells could promote a more ATII-like phenotype and thus could be a more suitable model for ATII cells, especially for in vitro studies dealing with surfactant production.
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15
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Li D, Qi C, Zhou J, Wen Z, Zhu X, Xia H, Song J. LPS-induced inflammation delays the transportation of ASP + due to down-regulation of OCTN1/2 in alveolar epithelial cells. J Drug Target 2019; 28:437-447. [PMID: 31591905 DOI: 10.1080/1061186x.2019.1678169] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Organic cation transporters (OCTNs) can significantly affect drug disposition in alveolar epithelial cells (A549), but this process is not well understood. We investigated the expression and function of OCTN1/2 in A549 cells under different inflammatory status to examine pulmonary drug distribution. This experiment used lipopolysaccharide (LPS)-treated A549 cells to mimic inflammation in alveolar epithelial cells, and the expression of OCTN1/2, interleukin-6 (IL6), IL18, IL1β and tumour necrosis factor-alpha (TNF-α) was investigated by western blot and quantitative real-time PCR (qRT-PCR). The fluorescent compound 4-(4-(dimethylamino)styryl)-N-methylpyridinium iodide (ASP+) was chosen as a probe to study the activity of OCTN1/2. OCTN1/2 down-regulation induced by LPS was more pronounced than that in normal control (NC) groups. Experiments further detected the release of inflammatory factors that revealed a negative correlation between OCTN1/2 expression and inflammation secretion in human alveolar epithelial cells exposed to different concentrations of LPS. The Michaelis constant (Km) and apparent permeability coefficient (Papp) of ASP+ were also decreased significantly. Our results thus show that LPS-induced inflammation could inhibit the expression and activity of OCTN1/2 in vitro and reduce the distribution of inhaled medicine in pulmonary diseases.
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Affiliation(s)
- Dalang Li
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Chuanzong Qi
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Jian Zhou
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Zeqiang Wen
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Xiangyu Zhu
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Hongguang Xia
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Jue Song
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
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16
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Cheng Q, Shang Y, Huang W, Zhang Q, Li X, Zhou Q. p300 mediates the histone acetylation of ORMDL3 to affect airway inflammation and remodeling in asthma. Int Immunopharmacol 2019; 76:105885. [PMID: 31536903 DOI: 10.1016/j.intimp.2019.105885] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 08/20/2019] [Accepted: 09/05/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND Bronchial asthma is affected by both environmental and genetic factors. The orosomucoid 1-like protein 3 (ORMDL3) gene is related to childhood asthma and is involved in airway inflammation and airway remodeling. The ORMDL3 promoter contains binding sites for the histone acetylase p300. Gene expression can be affected by epigenetic modifications. This study aimed to investigate whether the p300-mediated histone acetylation (HAT) of ORMDL3 gene affects airway inflammation and remodeling in asthma. METHODS 16HBE14o- cells were transfected with various concentrations of a wild-type p300 plasmid or p300HAT-deletion plasmids. A dual luciferase reporter assay was used to examine the effect of p300-mediated HAT on the ORMDL3 promoter. Thirty BALB/c mice were randomly divided into a control group, an ovalbumin (OVA)-induced asthma group and an asthma + C646 (a selective inhibitor of p300) group. Noninvasive lung function tests were conducted to examine airway hyperreactivity (AHR) in the different groups. HE and Masson's trichrome staining was performed to examine airway remodeling and inflammation. Immunohistochemistry, western blotting and real-time PCR were used to analyze ORMDL3 expression in lung tissues. ELISA and western blotting were used to evaluate the HAT status in lung tissue. The ChIP assay was used to determine the relationship of the ORMDL3 promoter to p300 or acetylated histone H3 (aceH3). RESULTS p300 activated transcription from the ORMDL3 promoter, resulting in an increase in endogenous ORMDL3 mRNA levels. ORMDL3 promoter activity was reduced when the HAT activity of p300 was lost. ORMDL3 expression was elevated, and HAT activity was high in the lung tissues of asthmatic mice. p300 and aceH3 bound to the promoter region of ORMDL3. In the asthma group, the amounts of p300 and aceH3 recruited to the ORMDL3 promoter were increased. C646 inhibited p300 expression and reduced HAT activity and aceH3 levels in asthmatic mice, thereby reducing ORMDL3 expression and relieving AHR and airway remodeling. CONCLUSION p300-mediated HAT modulates the expression of the asthma susceptibility gene ORMDL3, thereby improving the process of airway inflammation and remodeling in asthma.
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Affiliation(s)
- Qi Cheng
- Pediatric Pulmonology Department, Shengjing Hospital of China Medical University, 36th Sanhao Street, Heping District, Shenyang 110004, PR China.
| | - Yunxiao Shang
- Pediatric Pulmonology Department, Shengjing Hospital of China Medical University, 36th Sanhao Street, Heping District, Shenyang 110004, PR China.
| | - Wanjie Huang
- Pediatric Pulmonology Department, Shengjing Hospital of China Medical University, 36th Sanhao Street, Heping District, Shenyang 110004, PR China
| | - Qinzhen Zhang
- Pediatric Pulmonology Department, Shengjing Hospital of China Medical University, 36th Sanhao Street, Heping District, Shenyang 110004, PR China
| | - Xiang Li
- Pediatric Pulmonology Department, Shengjing Hospital of China Medical University, 36th Sanhao Street, Heping District, Shenyang 110004, PR China
| | - Qianlan Zhou
- Pediatric Pulmonology Department, Shengjing Hospital of China Medical University, 36th Sanhao Street, Heping District, Shenyang 110004, PR China
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Zheng ZG, Xu YH, Liu F, Zhao TT, wang RX, Huang PY, Wang RS, Yang AP, Zhu Q. Screening bioactive components of Glycyrrhiza uralensis Fisch. with isolated perfused lung extraction and HPLC-ESI-MSn analysis. J Pharm Biomed Anal 2019; 169:127-132. [DOI: 10.1016/j.jpba.2019.03.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 01/29/2019] [Accepted: 03/04/2019] [Indexed: 12/21/2022]
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18
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Li W, Li W, Zang L, Liu F, Yao Q, Zhao J, Zhi W, Niu X. Fraxin ameliorates lipopolysaccharide-induced acute lung injury in mice by inhibiting the NF-κB and NLRP3 signalling pathways. Int Immunopharmacol 2019; 67:1-12. [DOI: 10.1016/j.intimp.2018.12.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/29/2018] [Accepted: 12/02/2018] [Indexed: 12/15/2022]
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