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Guo D, Li K, Yang M, Zhang H, Miao Y. Levobupivacaine attenuates lipopolysaccharide-induced acute lung injury. Fundam Clin Pharmacol 2016; 30:307-15. [PMID: 26991027 DOI: 10.1111/fcp.12197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 02/08/2016] [Accepted: 03/15/2016] [Indexed: 01/04/2023]
Affiliation(s)
- Dan Guo
- Department of Anesthesiology; First Affiliated Hospital of Henan University of Science and Technology; Luoyang Henan China 471000
| | - Kehan Li
- Department of Anesthesiology; First Affiliated Hospital of Henan University of Science and Technology; Luoyang Henan China 471000
| | - Muqiang Yang
- Department of Anesthesiology; First Affiliated Hospital of Henan University of Science and Technology; Luoyang Henan China 471000
| | - Hongjun Zhang
- Department of Anesthesiology; First Affiliated Hospital of Henan University of Science and Technology; Luoyang Henan China 471000
| | - Yafei Miao
- Department of Anesthesiology; First Affiliated Hospital of Henan University of Science and Technology; Luoyang Henan China 471000
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Ge Y, Hu S, Zhang Y, Wang W, Xu Q, Zhou L, Mao H. Levobupivacaine inhibits lipopolysaccharide-induced high mobility group box 1 release in vitro and in vivo. J Surg Res 2014; 192:582-91. [DOI: 10.1016/j.jss.2014.05.087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 05/28/2014] [Accepted: 05/29/2014] [Indexed: 12/11/2022]
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Huang YH, Yen JC, Lee JJ, Liao JF, Liaw WJ, Huang CJ. P2X7 is involved in the anti-inflammation effects of levobupivacaine. J Surg Res 2014; 193:407-14. [PMID: 25124896 DOI: 10.1016/j.jss.2014.07.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 06/30/2014] [Accepted: 07/10/2014] [Indexed: 01/27/2023]
Abstract
BACKGROUND We sough to elucidate whether purinergic P2X7 receptor is actively involved in the effects of levobupivacaine on inhibiting microglia activation. MATERIALS AND METHODS Microglia were treated with lipopolysaccharide (LPS, 50 ng/mL), LPS plus levobupivacaine (50 μM), or LPS plus levobupivacaine plus the P2X7 receptor agonist Bz-ATP (100 μM) and denoted as the LPS, LPS + Levo, and LPS + Levo + Bz-ATP group, respectively. Microglia activation was measured by assaying inflammatory molecules expression. Microglia activation was also measured by assaying neuronal cell viability using coculture of microglia and neurons, as activated microglia may cause neuron injury. We also measured the levels of P2X7 receptor activation in microglia using ethidium uptake assay. RESULTS Our data confirmed the effects of levobupivacaine on inhibiting inflammatory molecules upregulation in activated microglia, as the concentrations of interleukin (IL)-1β, tumor necrosis factor α, IL-6, and macrophage inflammatory protein 2, of the LPS + Levo group were significantly lower than those of the LPS group (all P < 0.05). Moreover, Bz-ATP significantly abrogated the inhibitory effects of levobupivacaine, as concentrations of IL-1β, tumor necrosis factor α, IL-6, and macrophage inflammatory protein 2 of the LPS + Levo + Bz-ATP group were significantly higher than those of the LPS + Levo group (all P < 0.05). In contrast, neuronal cell viability of the LPS + Levo group was significantly higher than those of the LPS and LPS + Levo + Bz-ATP groups (P = 0.012 and 0.002). Moreover, levels of P2X7 receptor activation of the LPS and LPS + Levo + Bz-ATP groups were significantly higher than that of the LPS + Levo group (P = 0.003 and 0.006). CONCLUSIONS P2X7 receptor is involved in the effects of levobupivacaine on inhibiting microglial activation.
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Affiliation(s)
- Ya-Hsien Huang
- Department of Anesthesiology, Mackay Memorial Hospital, Taipei, Taiwan; Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
| | - Jiin-Cherng Yen
- Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
| | - Jie-Jen Lee
- Department of Surgery, Mackay Memorial Hospital, Taipei, Taiwan
| | - Jyh-Fei Liao
- Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
| | - Wen-Jinn Liaw
- Department of Anesthesiology, Tung's Taichung MetroHarbor Hospital, Taichung, Taiwan
| | - Chun-Jen Huang
- Department of Anesthesiology, Taipei Tzu Chi Hospital, Taipei, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan.
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Yuan T, Li Z, Li X, Yu G, Wang N, Yang X. Lidocaine attenuates lipopolysaccharide-induced inflammatory responses in microglia. J Surg Res 2014; 192:150-62. [PMID: 24952412 DOI: 10.1016/j.jss.2014.05.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 04/23/2014] [Accepted: 05/08/2014] [Indexed: 12/01/2022]
Abstract
BACKGROUND Lidocaine has been used as a local anesthetic with anti-inflammatory properties, but its effects on neuroinflammation have not been well defined. In the present study, we investigated the prophylactic effects of lidocaine on lipopolysaccharide (LPS)-activated microglia and explored the underlying mechanisms. MATERIALS AND METHODS Microglial cells were incubated with or without 1 μg/mL LPS in the presence or absence of lidocaine, a p38 mitogen-activated protein kinase (p38 MAPK) inhibitor (SB203580), a nuclear factor-kappa B (NF-κB) inhibitor (pyrrolidine dithiocarbamate), or small interfering RNA. The protein and expression levels of inflammatory mediators, such as monocyte chemotactic protein 1, nitric oxide, prostaglandin E2, interleukin 1β, and tumor necrosis factor α were measured using enzyme-linked immunosorbent assays and real-time polymerase chain reaction. The effect of lidocaine on NF-κB and p38 MAPK activation was evaluated using enzyme-linked immunosorbent assays, Western blot analysis, and electrophoretic mobility shift assay. RESULTS Lidocaine (≥2 μg/mL) significantly inhibited the release and expression of nitric oxide, monocyte chemotactic protein 1, prostaglandin E2, interleukin 1β, and tumor necrosis factor α in LPS-activated microglia. Treatment with lidocaine also significantly inhibited the phosphorylation of p38 MAPK and the nuclear translocation of NF-κB p50/p65, increased the protein levels of inhibitor kappa B-α. Furthermore, our study shows that the LPS-induced release of inflammatory mediators was suppressed by SB203580, pyrrolidine dithiocarbamate, and small interfering RNA. CONCLUSIONS Prophylactic treatment with lidocaine inhibits LPS-induced release of inflammatory mediators from microglia, and these effects may be mediated by blockade of p38 MAPK and NF-κB signaling pathways.
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Affiliation(s)
- Tong Yuan
- Department of Anesthesiology, First Hospital of Jilin University, Changchun, Jilin, China
| | - Zhiwen Li
- Department of Anesthesiology, First Hospital of Jilin University, Changchun, Jilin, China
| | - Xinbai Li
- Department of Anesthesiology, First Hospital of Jilin University, Changchun, Jilin, China
| | - Gaoqi Yu
- Department of Anesthesiology, First Hospital of Jilin University, Changchun, Jilin, China
| | - Na Wang
- Department of Anesthesiology, First Hospital of Jilin University, Changchun, Jilin, China
| | - Xige Yang
- Department of Anesthesiology, First Hospital of Jilin University, Changchun, Jilin, China.
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Xu Z, Dong Y, Wang H, Culley DJ, Marcantonio ER, Crosby G, Tanzi RE, Zhang Y, Xie Z. Peripheral surgical wounding and age-dependent neuroinflammation in mice. PLoS One 2014; 9:e96752. [PMID: 24796537 PMCID: PMC4010504 DOI: 10.1371/journal.pone.0096752] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 04/09/2014] [Indexed: 01/23/2023] Open
Abstract
Post-operative cognitive dysfunction is associated with morbidity and mortality. However, its neuropathogenesis remains largely to be determined. Neuroinflammation and accumulation of β-amyloid (Aβ) have been reported to contribute to cognitive dysfunction in humans and cognitive impairment in animals. Our recent studies have established a pre-clinical model in mice, and have found that the peripheral surgical wounding without the influence of general anesthesia induces an age-dependent Aβ accumulation and cognitive impairment in mice. We therefore set out to assess the effects of peripheral surgical wounding, in the absence of general anesthesia, on neuroinflammation in mice with different ages. Abdominal surgery under local anesthesia was established in 9 and 18 month-old mice. The levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), Iba1 positive cells (the marker of microglia activation), CD33, and cognitive function in mice were determined. The peripheral surgical wounding increased the levels of TNF-α, IL-6, and Iba1 positive cells in the hippocampus of both 9 and 18 month-old mice, and age potentiated these effects. The peripheral surgical wounding increased the levels of CD33 in the hippocampus of 18, but not 9, month-old mice. Finally, anti-inflammatory drug ibuprofen ameliorated the peripheral surgical wounding-induced cognitive impairment in 18 month-old mice. These data suggested that the peripheral surgical wounding could induce an age-dependent neuroinflammation and elevation of CD33 levels in the hippocampus of mice, which could lead to cognitive impairment in aged mice. Pending further studies, anti-inflammatory therapies may reduce the risk of postoperative cognitive dysfunction in elderly patients.
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Affiliation(s)
- Zhipeng Xu
- Geriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
| | - Yuanlin Dong
- Geriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
| | - Hui Wang
- Geriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
- Department of Anesthesia, Beijing Chaoyang Hospital, Capital Medical University, Beijing, P. R. China
| | - Deborah J. Culley
- Department of Anesthesia, Brigham & Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Edward R. Marcantonio
- Divisions of General Medicine and Primary Care and Gerontology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
| | - Gregory Crosby
- Department of Anesthesia, Brigham & Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Rudolph E. Tanzi
- Genetics and Aging Research Unit, MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
| | - Yiying Zhang
- Geriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
| | - Zhongcong Xie
- Geriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
- * E-mail:
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Gangapuram M, Mazzio E, Eyunni S, Soliman KFA, Redda KK. Synthesis and biological evaluation of substituted N-[3-(1H-pyrrol-1-yl)methyl]-1,2,5,6-tetrahydropyridin-1-yl]benzamide/benzene sulfonamides as anti-inflammatory agents. Arch Pharm (Weinheim) 2014; 347:360-9. [PMID: 24585402 PMCID: PMC4042835 DOI: 10.1002/ardp.201300379] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 12/02/2013] [Accepted: 12/02/2013] [Indexed: 12/13/2022]
Abstract
The pharmacological activities of tetrahydropyridine (THP) derivatives are dependent on the substituent ring moiety. In this study, we investigate the anti-inflammatory activities of 12 newly synthesized substituted N-[3-(1H-pyrrol-1-yl)methyl]-1,2,5,6-tetrahydrobenzamide/benzene sulfonamides (9a-l) in murine BV-2 microglial cells. All compounds were initially screened for attenuation of nitric oxide (NO) production in lipopolysaccharide (LPS) (1 µg/mL)-activated microglial cells. The data show that only SO2 -substituted THPs were effective at sub-lethal concentrations (IC50 values of 12.92 µM (9i), 14.64 µM (9j), 19.63 µM (9k)) relative to L-N6-(1-iminoethyl)lysine positive control (IC50 = 3.1 µM). The most potent SO2 -substituted compound (9i) also blocked the LPS-inducible nitric oxide synthase (iNOS) and attenuated the release of several cytokines including IL-1α, IL-10, and IL-6. These findings establish the moderate immuno-modulating effects of SO2 -substituted THP derivatives.
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Affiliation(s)
- Madhavi Gangapuram
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, USA
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Mycoepoxydiene inhibits activation of BV2 microglia stimulated by lipopolysaccharide through suppressing NF-κB, ERK 1/2 and toll-like receptor pathways. Int Immunopharmacol 2014; 19:88-93. [PMID: 24447679 DOI: 10.1016/j.intimp.2014.01.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 12/08/2013] [Accepted: 01/06/2014] [Indexed: 11/24/2022]
Abstract
Mycoepoxydiene (MED) is a polyketide isolated from the marine fungal Diaporthe sp. HLY-1 associated with mangroves. Although MED has been shown to have various biological effects such as antimicrobial, anti-cancer, and anti-inflammatory activities, its activities and cellular mechanisms during microglial activation have yet to be elucidated. In the present study, we assessed the anti-inflammatory effect of MED on the production of inflammatory mediators in lipopolysaccharide (LPS)-stimulated murine BV2 microglia. MED significantly inhibited LPS-induced production of pro-inflammatory mediators such as tumor necrosis factor α (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6), interferon-γ (INF-γ), and nitric oxide (NO), whereas it increased anti-inflammatory interleukin-10 (IL-10) and transforming growth factor-β1 (TGF-β1) production in BV2 microglia in a concentration-dependent manner without causing cytotoxicity. Moreover, MED suppressed NF-κB activation by blocking IkappaB-α (IκB-α) degradation and inhibited the phosphorylation of ERK 1/2 and toll-like receptor 4 (TLR4) expression, but had no effect on the phosphorylation of JNK, and p38. Our results demonstrate that the inhibitory and promotion effect of MED on LPS-stimulated inflammatory mediators and anti-inflammatory factor production in BV2 microglia is associated with the suppression of the NF-κB, ERK1/2 and TLR signaling pathways. Therefore, MED may have therapeutic potential for neurodegenerative diseases by inhibiting inflammatory mediators and enhancing anti-inflammatory factor production in activated microglia.
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