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Shi Y, Hu Y, Wang Y, Ma X, Tang L, Tao M, Qiu A, Zhuang S, Liu N. Blockade of Autophagy Prevents the Development and Progression of Peritoneal Fibrosis. Front Pharmacol 2021; 12:724141. [PMID: 34497522 PMCID: PMC8419262 DOI: 10.3389/fphar.2021.724141] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 08/09/2021] [Indexed: 12/24/2022] Open
Abstract
Peritoneal fibrosis (PF) is a major cause of ultrafiltration failure in long-term peritoneal dialysis (PD) patients. Nevertheless, limited measures have been shown to be effective for the prevention and treatment of PF. Some views reveal that activation of autophagy ameliorates PF but others demonstrate that autophagy promotes PF. It is obvious that the role of autophagy in PF is controversial and further studies are needed. Here, we investigated the role of autophagy in rat models of PF and damaged cultured human peritoneal mesothelial cells (HPMCs). Autophagy was highly activated in fibrotic peritoneum from two PF rat models induced by 4.25% peritoneal dialysate fluid (PDF) and 0.1% chlorhexidine gluconate (CG). Blockade of autophagy with 3-MA effectively prevented PF in both models and reversed epithelial to mesenchymal transition (EMT) by down-regulating TGF-β/Smad3 signaling pathway and downstream nuclear transcription factors Slug and Snail. Treatment with 3-MA also inhibited activation of EGFR/ERK1/2 signaling pathway during PF. Moreover, 3-MA prominently decreased STAT3/NF-κB-mediated inflammatory response and macrophage infiltration, and prevented peritoneal angiogenesis through downregulation of β-catenin signal. In addition, TGF-β1 stimulation up-regulated autophagic activity as evidenced by the increased autophagosome in vitro. Exposure of HPMCs to TGF-β1 resulted in the induction of EMT and activation of TGF-β/Smad3, EGFR/ERK1/2 signaling pathways. Treatment with 3-MA blocked all these responses. In addition, delayed administration of 3-MA was effective in reducing EMT induced by TGF-β1. Taken together, our study indicated that autophagy might promote PF and 3-MA had anti-fibrosis effect in vivo and in vitro. These results suggest that autophagy could be a potential target on PF therapy for clinical patients with long-term PD.
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Affiliation(s)
- Yingfeng Shi
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yan Hu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi Wang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaoyan Ma
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lunxian Tang
- Emergency Department of Critical Care Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Min Tao
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Andong Qiu
- School of Life Science and Technology, Advanced Institute of Translational Medicine, Tongji University, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, RI, United States
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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2
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Wang H, Zhang L, Li Q, Xu S, Lu R. Surface-layer protein produced by Lactobacillus crispatus JCM 2009 ameliorates lipopolysaccharide-induced inflammation through autophagy cross-talk with the NF-κB signaling pathway. Int J Biol Macromol 2020; 166:633-640. [PMID: 33130269 DOI: 10.1016/j.ijbiomac.2020.10.221] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/10/2020] [Accepted: 10/26/2020] [Indexed: 02/05/2023]
Abstract
In recent years, studies on immunomodulation by surface-layer proteins (Slps) have mainly focused on Lactobacillus acidophilus, there is little information on Slp from L. crispatus and its intestinal immunomodulatory mechanisms in macrophages. In our study, the anti-inflammatory actions of Slp derived from L. crispatus JCM 2009 and its related molecular mechanisms were investigated. We initially found that incubation with Slp (5-10 μg/mL) for 4 h significantly inhibited nitric oxide (NO) and prostaglandin E2 (PGE2) production in LPS-stimulated RAW264.7 cells (P < 0.001). We then found that Slp inhibited the inflammatory response by regulating the PI3K/AKT/mTOR signaling pathway and activating autophagy in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. Furthermore, ELISA and Western blotting results demonstrated that the NF-κB signaling pathway positively regulated autophagic activity to inhibit the productions of PGE2 and NO during this inflammatory response. And p65 was identified as a potentially important NF-κB signaling pathway molecule mediating the effects of Slp on the LPS-induced inflammatory response in RAW264.7 cells. Our findings provide the novel perspective that Slp exerts its anti-inflammatory effects through the activation of autophagy, making it a promising bioactive ingredient for the development of functional foods.
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Affiliation(s)
- Huifang Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, China
| | - Li Zhang
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, 20 Qian Rong, Wuxi, Jiangsu 214063, China
| | - Qinpei Li
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, China
| | - Shichen Xu
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, 20 Qian Rong, Wuxi, Jiangsu 214063, China
| | - Rongrong Lu
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, China.
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3
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An Y, Zhang H, Wang C, Jiao F, Xu H, Wang X, Luan W, Ma F, Ni L, Tang X, Liu M, Guo W, Yu L. Activation of ROS/MAPKs/NF-κB/NLRP3 and inhibition of efferocytosis in osteoclast-mediated diabetic osteoporosis. FASEB J 2019; 33:12515-12527. [PMID: 31461386 DOI: 10.1096/fj.201802805rr] [Citation(s) in RCA: 218] [Impact Index Per Article: 43.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Diabetes mellitus (DM) affects bone metabolism and leads to osteoporosis; however, its pathogenetic mechanisms remain unknown. We found that high glucose (HG) conditions induced the production of reactive oxygen species (ROS) and the expression of proteins related to MAPKs [phosphorylated (p)-ERK, p-JNK, and p-p38], NF-κB (NF-κB, p-IκB, and IKK), and NACHT-LRR-PYD domains-containing protein 3 (NALP3) (NLRP3) [apoptosis-associated speck-like protein containing a caspase activation and recruitment domain (ASC), caspase-1, IL-18, IL-1β, and NLRP3] in osteoclasts (OCs) in vitro. Further analysis showed that in HG-induced OCs, ROS is an upstream signal for MAPKs, NF-κB, and the NLRP3 inflammasome. Moreover, MAPKs mediated the activation of NF-κB and NLRP3, whereas NF-κB up-regulated the NLRP3 inflammasome response. Interestingly, HG inducement enhanced the bone resorption of OCs but inhibited their efferocytosis, whereas insulin and lipoxin A4 (4) treatment reversed this phenomenon. In streptozotocin-induced diabetic rats in vivo, the numbers and the bone-resorption capacity of OCs as well as the serum levels of TRACP-5b were significantly increased, and the expression of MAPK-, NF-κB-, and NLRP3 inflammasome-related proteins in the proximal tibia were also significantly elevated; however, treatment with insulin and LXA4 reversed this elevation. Together, these results demonstrated that the activation of ROS/MAPKs/NF-κB/NLRP3 and the inhibition of efferocytosis in OCs are the main causes of osteoporosis in DM.-An, Y., Zhang, H., Wang, C., Jiao, F., Xu, H., Wang, X., Luan, W., Ma, F., Ni, L., Tang, X., Liu, M., Guo, W., Yu, L. Activation of ROS/MAPKs/NF-κB/NLRP3 and inhibition of efferocytosis in osteoclast-mediated diabetic osteoporosis.
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Affiliation(s)
- Yanan An
- Department of Endocrinology, Department of Interventional Therapy, First Hospital of Jilin University, Key Laboratory of Zoonosis Research, Ministry of Education, and Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Haifeng Zhang
- Department of Endocrinology, Department of Interventional Therapy, First Hospital of Jilin University, Key Laboratory of Zoonosis Research, Ministry of Education, and Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Chao Wang
- Department of Endocrinology, Department of Interventional Therapy, First Hospital of Jilin University, Key Laboratory of Zoonosis Research, Ministry of Education, and Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Fangtai Jiao
- Department of Endocrinology, Department of Interventional Therapy, First Hospital of Jilin University, Key Laboratory of Zoonosis Research, Ministry of Education, and Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Hongyue Xu
- Department of Endocrinology, Department of Interventional Therapy, First Hospital of Jilin University, Key Laboratory of Zoonosis Research, Ministry of Education, and Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xuefei Wang
- Department of Endocrinology, Department of Interventional Therapy, First Hospital of Jilin University, Key Laboratory of Zoonosis Research, Ministry of Education, and Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Wenjing Luan
- Department of Endocrinology, Department of Interventional Therapy, First Hospital of Jilin University, Key Laboratory of Zoonosis Research, Ministry of Education, and Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Fangxue Ma
- Department of Endocrinology, Department of Interventional Therapy, First Hospital of Jilin University, Key Laboratory of Zoonosis Research, Ministry of Education, and Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Lihui Ni
- Department of Endocrinology, Department of Interventional Therapy, First Hospital of Jilin University, Key Laboratory of Zoonosis Research, Ministry of Education, and Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xudong Tang
- Key Laboratory for New Drugs Research of Traditional Chinese Medicine (TCM), Research Institute of Tsinghua University in Shenzhen, Shenzhen, China
| | - Mingyuan Liu
- Department of Endocrinology, Department of Interventional Therapy, First Hospital of Jilin University, Key Laboratory of Zoonosis Research, Ministry of Education, and Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China.,Jiangsu Coinnovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou, China
| | - Weiying Guo
- Department of Endocrinology, Department of Interventional Therapy, First Hospital of Jilin University, Key Laboratory of Zoonosis Research, Ministry of Education, and Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Lu Yu
- Department of Endocrinology, Department of Interventional Therapy, First Hospital of Jilin University, Key Laboratory of Zoonosis Research, Ministry of Education, and Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
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Electroacupuncture Delays Cartilage Degeneration by Modulating Nuclear Factor-κB Signaling Pathway. Chin J Integr Med 2019; 25:677-683. [PMID: 30656598 DOI: 10.1007/s11655-018-2916-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2018] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To illustrate the molecular mechanisms underlying the therapeutic effects of electroacupuncture (EA) on knee osteoarthritis (OA). METHODS Twenty-seven six-month-old New Zealand white rabbits were allocated into three groups in accordance with a random number table: normal group (no surgery-induced OA; without treatment), model group (surgery-induced OA; without treatment) and EA group [surgery-induced OA; received treatment with EA at acupoints Dubi (ST 35) and Neixiyan (EX-LE 5), 30 min twice a day]. After eight consecutive weeks of treatment, the histopathological alterations in cartilage were observed using optical microscopy and transmission electron microscopy, cartilage degeneration was evaluated by modified Mankin's score principles, the synovial fluid concentration of interleukin-1β (IL-1β), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and matrix metalloproteinase-3 (MMP-3) were evaluated by enzyme-linked immunosorbent assay, and the protein expression levels of IL-1β, IL-6, TNF-α, MMP-3, IκB kinase-β (IKK-β), nuclear factor of α light polypeptide gene enhancer in B-cells inhibitor α (IκB-α) and nuclear factor-κB (NF-κB) p65 were quantified by Western blot analysis. RESULTS EA treatment significantly improved cartilage structure arrangement and reduced cellular degeneration. The IL-1β, IL-6, TNF-α and MMP-3 of synovial fluid in the EA-treated group were significantly decreased compared with the model group (all P<0.01). Compared with the model group, the IL-1β, IL-6, TNF-α, MMP-3, IKK-β and NF-κB p65 protein expressions in cartilage of EA-treated group were significantly decreased (all P<0.01), whereas IκB-α expression was significantly up-regulated (P<0.01). CONCLUSION EA treatment may delay cartilage degeneration by down-regulating inflammatory factors through NF-κB signaling pathway, which may, in part, explain its clinical efficacy in the treatment of knee OA.
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5
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Xiong R, Pan D, Wu Z, Guo Y, Zeng X, Lian L. Structure and immunomodulatory activity of a recombinant mucus-binding protein of Lactobacillus acidophilus. Future Microbiol 2018; 13:1731-1743. [PMID: 30526068 DOI: 10.2217/fmb-2018-0222] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
AIM The role of mucus-binding protein (MUB) on the adhesion activity and immunomodulatory effect of Lactobacillus acidophilus. MATERIALS & METHODS The current research mainly focuses on the adhesion and immune function of MUB from L. acidophilus. The structural characteristics and adhesion properties of MUB were analyzed in the intestinal cell models. RESULTS MUB can promote the aggregation and formation of a membrane-like morphology in L. acidophilus, which could increase the survival rate of L. acidophilus in gastrointestinal tract (GIT). Furthermore, MUB could trigger immune regulation and intestinal protection through the Toll-like receptor 4 (TLR4) signaling pathway and inhibit the activation of mitogen-activated protein kinase (MAPK) signaling pathway. CONCLUSION MUB of L. acidophilus is an important component involved in bacterial-mucus interactions and immunomodulatory effect in gastrointestinal tract.
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Affiliation(s)
- Ronglu Xiong
- Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, PR China
| | - Daodong Pan
- Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, PR China.,Department of Food Science & Nutrition, Ginling College, Nanjing Normal University, Nanjing, PR China
| | - Zhen Wu
- Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, PR China
| | - Yuxing Guo
- Department of Food Science & Nutrition, Ginling College, Nanjing Normal University, Nanjing, PR China
| | - Xiaoqun Zeng
- Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, PR China
| | - Liwei Lian
- Ningbo Dairy Group, Ningbo, 315211, Zhejiang, PR China
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6
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Bukhari SNA, Zhang X, Jantan I, Zhu HL, Amjad MW, Masand VH. Synthesis, Molecular Modeling, and Biological Evaluation of Novel 1, 3-Diphenyl-2-propen-1-one Based Pyrazolines as Anti-inflammatory Agents. Chem Biol Drug Des 2014; 85:729-42. [DOI: 10.1111/cbdd.12457] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 09/25/2014] [Accepted: 10/15/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Syed Nasir Abbas Bukhari
- Drug and Herbal Research Centre; Faculty of Pharmacy; Universiti Kebangsaan Malaysia; Jalan Raja Muda Abdul Aziz 50300 Kuala Lumpur Malaysia
| | - Xin Zhang
- Institute of Functional Biomolecules; State Key Laboratory of Pharmaceutical Biotechnology; Nanjing University; Nanjing 210093 China
| | - Ibrahim Jantan
- Drug and Herbal Research Centre; Faculty of Pharmacy; Universiti Kebangsaan Malaysia; Jalan Raja Muda Abdul Aziz 50300 Kuala Lumpur Malaysia
| | - Hai-Liang Zhu
- Institute of Functional Biomolecules; State Key Laboratory of Pharmaceutical Biotechnology; Nanjing University; Nanjing 210093 China
| | - Muhammad Wahab Amjad
- Drug and Herbal Research Centre; Faculty of Pharmacy; Universiti Kebangsaan Malaysia; Jalan Raja Muda Abdul Aziz 50300 Kuala Lumpur Malaysia
| | - Vijay H. Masand
- Department of Chemistry; Vidya Bharati Mahavidyalaya; Amravati Maharashtra 444 602 India
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Jantan I, Bukhari SNA, Adekoya OA, Sylte I. Studies of synthetic chalcone derivatives as potential inhibitors of secretory phospholipase A2, cyclooxygenases, lipoxygenase and pro-inflammatory cytokines. DRUG DESIGN DEVELOPMENT AND THERAPY 2014; 8:1405-18. [PMID: 25258510 PMCID: PMC4172049 DOI: 10.2147/dddt.s67370] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Arachidonic acid metabolism leads to the generation of key lipid mediators which play a fundamental role during inflammation. The inhibition of enzymes involved in arachidonic acid metabolism has been considered as a synergistic anti-inflammatory effect with enhanced spectrum of activity. A series of 1,3-diphenyl-2-propen-1-one derivatives were investigated for anti-inflammatory related activities involving inhibition of secretory phospholipase A2, cyclooxygenases, soybean lipoxygenase, and lipopolysaccharides-induced secretion of interleukin-6 and tumor necrosis factor-alpha in mouse RAW264.7 macrophages. The results from the above mentioned assays exhibited that the synthesized compounds were effective inhibitors of pro-inflammatory enzymes and cytokines. The results also revealed that the chalcone derivatives with 4-methlyamino ethanol substitution seem to be significant for inhibition of enzymes and cytokines. Molecular docking experiments were carried out to elucidate the molecular aspects of the observed inhibitory activities of the investigated compounds. Present findings increase the possibility that these chalcone derivatives might serve as a beneficial starting point for the design and development of improved anti-inflammatory agents.
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Affiliation(s)
- Ibrahim Jantan
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Syed Nasir Abbas Bukhari
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Olayiwola A Adekoya
- Department of Pharmacy, Faculty of Health Science, UiT The Arctic University of Norway, Tromsø, Norway
| | - Ingebrigt Sylte
- Department of Medical Biology, Faculty of Health Science, UiT The Arctic University of Norway, Tromsø, Norway
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Bukhari SNA, Lauro G, Jantan I, Bifulco G, Amjad MW. Pharmacological evaluation and docking studies of α,β-unsaturated carbonyl based synthetic compounds as inhibitors of secretory phospholipase A₂, cyclooxygenases, lipoxygenase and proinflammatory cytokines. Bioorg Med Chem 2014; 22:4151-61. [PMID: 24938495 DOI: 10.1016/j.bmc.2014.05.052] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 05/21/2014] [Accepted: 05/22/2014] [Indexed: 12/22/2022]
Abstract
Arachidonic acid and its metabolites have generated high level of interest among researchers due to their vital role in inflammation. The inhibition of enzymes involved in arachidonic acid metabolism has been considered as synergistic anti-inflammatory effect. A series of novel α,β-unsaturated carbonyl based compounds were synthesized and evaluated for their inhibitory activity on secretory phospholipase A₂ (sPLA₂), cyclooxygenases (COX), soybean lipoxygenase (LOX) in addition to proinflammatory cytokines comprising IL-6 and TNF-α. Six α,β-unsaturated carbonyl based compounds (2, 3, 4, 12, 13 and 14) exhibited strong inhibition of sPLA₂ activity, with IC₅₀ values in the range of 2.19-8.76 μM. Nine compounds 1-4 and 10-14 displayed inhibition of COX-1 with IC₅₀ values ranging from 0.37 to 1.77 μM (lower than that of reference compound), whereas compounds 2, 10, 13 and 14 strongly inhibited the COX-2. The compounds 10-14 exhibited strong inhibitory activity against LOX enzyme. All compounds were evaluated for the inhibitory activities against LPS-induced TNF-α and IL-6 release in the macrophages. On the basis of screening results, five active compounds 3, 4, 12, 13 and 14 were found strong inhibitors of TNF-α and IL-6 release in a dose-dependent manner. Molecular docking experiments were performed to clarify the molecular aspects of the observed COX and LOX inhibitory activities of the investigated compounds. Present findings increases the possibility that these α,β-unsaturated carbonyl based compounds might serve as beneficial starting point for the design and development of improved anti-inflammatory agents.
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Affiliation(s)
- Syed Nasir Abbas Bukhari
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia.
| | - Gianluigi Lauro
- Dipartimento di Farmacia, Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Ibrahim Jantan
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia.
| | - Giuseppe Bifulco
- Dipartimento di Farmacia, Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Muhammad Wahab Amjad
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
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Protective Effects of Lactobacillus plantarum NDC 75017 Against Lipopolysaccharide-Induced Liver Injury in Mice. Inflammation 2014; 37:1599-607. [DOI: 10.1007/s10753-014-9886-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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10
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Cheng G, Zhao Y, Li H, Wu Y, Li X, Han Q, Dai C, Li Y. Forsythiaside attenuates lipopolysaccharide-induced inflammatory responses in the bursa of Fabricius of chickens by downregulating the NF-κB signaling pathway. Exp Ther Med 2013; 7:179-184. [PMID: 24348786 PMCID: PMC3861409 DOI: 10.3892/etm.2013.1378] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Accepted: 10/23/2013] [Indexed: 12/27/2022] Open
Abstract
Forsythiaside, a phenylethanoside product isolated from air-dried fruits of Forsythia suspensa, has been demonstrated to exhibit antioxidant, antibacterial and anti-inflammatory activities in vitro. However, its mechanism and the effects of lipopolysaccharide (LPS)-induced injury on the bursa of Fabricius (BF) of chickens are poorly understood. The present study aimed to investigate the anti-inflammatory effects of forsythiaside on LPS-induced acute inflammation. In addition, the potential molecular mechanisms of forsythiaside were analyzed in the BF, a special immune organ in chickens. Forty 15-day-old chickens were randomly divided into control, LPS and LPS plus forsythiaside (30 or 60 mg/kg) groups (n=10 for each group). In the LPS plus forsythiaside (30 or 60 mg/kg) groups, the chickens were orally administered with forsythiaside at doses of 30 and 60 mg/kg for seven days. At 21 days old, the chickens were intravenously injected with 200 μg/kg body weight LPS. Chickens in the control and LPS groups were only administered with vehicle or LPS, respectively, at day 21. At 3 h post-injection, the body temperature and nitric oxide (NO) levels were analyzed. In addition, the levels and mRNA expression of pro-inflammatory cytokines, including tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and IL-1β, and the mRNA expression of nuclear factor-κB (NF-κB), cyclooxygenase-2 (COX-2) and inducible NO synthase (iNOS), were examined in the BFs isolated from the chickens. The results revealed that forsythiaside was able to attenuate the LPS-induced inflammatory responses in the BFs of the chickens. The mechanisms by which forsythiaside exerted its anti-inflammatory effect were found to correlate with the inhibition of IL-6, IL-1β, TNF-α and COX-2 production, via the inactivation of NF-κB, indicating that the NF-κB-iNOS-NO signaling pathway may be important in this process.
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Affiliation(s)
- Guangdong Cheng
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China ; College of Life Science, Jiamusi University, Jiamusi, Heilongjiang 154007, P.R. China
| | - Yulian Zhao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - He Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Yue Wu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Xianxian Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Qiang Han
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Chongshan Dai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Yanhua Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
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Henrotin Y, Lambert C. Chondroitin and Glucosamine in the Management of Osteoarthritis: An Update. Curr Rheumatol Rep 2013; 15:361. [DOI: 10.1007/s11926-013-0361-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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12
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Guo W, Sun J, Jiang L, Duan L, Huo M, Chen N, Zhong W, Wassy L, Yang Z, Feng H. Imperatorin Attenuates LPS-Induced Inflammation by Suppressing NF-κB and MAPKs Activation in RAW 264.7 Macrophages. Inflammation 2012; 35:1764-72. [DOI: 10.1007/s10753-012-9495-9] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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13
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Henrotin Y, Mobasheri A, Marty M. Is there any scientific evidence for the use of glucosamine in the management of human osteoarthritis? Arthritis Res Ther 2012; 14:201. [PMID: 22293240 PMCID: PMC3392795 DOI: 10.1186/ar3657] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Glucosamine in its acetylated form is a natural constituent of some glycosaminoglycans (for example, hyaluronic acid and keratan sulfate) in the proteoglycans found in articular cartilage, intervertebral disc and synovial fluid. Glucosamine can be extracted and stabilized by chemical modification and used as a drug or a nutraceutical. It has been approved for the treatment of osteoarthritis (OA) in Europe to promote cartilage and joint health and is sold over the counter as a dietary supplement in the United States. Various formulations of glucosamine have been tested, including glucosamine sulfate and glucosamine hydrochloride. In vitro and in vivo studies have uncovered glucosamine's mechanisms of action on articular tissues (cartilage, synovial membrane and subchondral bone) and justified its efficacy by demonstrating structure-modifying and anti-inflammatory effects at high concentrations. However, results from clinical trials have raised many concerns. Pharmacokinetic studies have shown that glucosamine is easily absorbed, but the current treatment doses (for example, 1,500 mg/day) barely reach the required therapeutic concentration in plasma and tissue. The symptomatic effect size of glucosamine varies greatly depending on the formulation used and the quality of clinical trials. Importantly, the effect size reduces when evidence is accumulated chronologically and evidence for the structure-modifying effects of glucosamine are sparse. Hence, glucosamine was at first recommended by EULAR and OARSI for the management of knee pain and structure improvement in OA patients, but not in the most recent NICE guidelines. Consequently, the published recommendations for the management of OA require revision. Glucosamine is generally safe and although there are concerns about potential allergic and salt-related side effects of some formulations, no major adverse events have been reported so far. This paper examines all the in vitro and in vivo evidence for the mechanism of action of glucosamine as well as reviews the results of clinical trials. The pharmacokinetics, side effects and differences observed with different formulations of glucosamine and combination therapies are also considered. Finally, the importance of study design and criteria of evaluation are highlighted as new compounds represent new interesting options for the management of OA.
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Affiliation(s)
- Yves Henrotin
- Bone and Cartilage Research Unit, University of Liège, Institute of Pathology, level 5, CHU Sart-Tilman, 4000 Liège, Belgium.
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Park JW, Kwon OK, Jang HY, Jeong H, Oh SR, Lee HK, Han SB, Ahn KS. A Leaf Methanolic Extract of Wercklea insignis Attenuates the Lipopolysaccharide-Induced Inflammatory Response by Blocking the NF-κB Signaling Pathway in RAW 264.7 Macrophages. Inflammation 2011; 35:321-31. [DOI: 10.1007/s10753-011-9322-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chon H, Choi B, Jeong G, Lee E, Lee S. Suppression of proinflammatory cytokine production by specific metabolites of Lactobacillus plantarum 10hk2 via inhibiting NF-κB and p38 MAPK expressions. Comp Immunol Microbiol Infect Dis 2010; 33:e41-9. [DOI: 10.1016/j.cimid.2009.11.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2009] [Accepted: 11/01/2009] [Indexed: 12/29/2022]
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Wu YL, Kou YR, Ou HL, Chien HY, Chuang KH, Liu HH, Lee TS, Tsai CY, Lu ML. Glucosamine regulation of LPS-mediated inflammation in human bronchial epithelial cells. Eur J Pharmacol 2010; 635:219-26. [DOI: 10.1016/j.ejphar.2010.02.044] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Revised: 01/28/2010] [Accepted: 02/23/2010] [Indexed: 12/23/2022]
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Zhao C, Yang J, Wang Y, Liang D, Yang X, Li X, Wu J, Wu X, Yang S, Li X, Liang G. Synthesis of mono-carbonyl analogues of curcumin and their effects on inhibition of cytokine release in LPS-stimulated RAW 264.7 macrophages. Bioorg Med Chem 2010; 18:2388-93. [PMID: 20338767 DOI: 10.1016/j.bmc.2010.03.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2009] [Revised: 03/01/2010] [Accepted: 03/02/2010] [Indexed: 01/09/2023]
Abstract
Curcumin has been reported to possess multifunctional bioactivities, especially the ability to inhibit proinflammatory induction. We previously demonstrated that the mono-carbonyl analogues of curcumin possessed improved pharmacokinetic profiles both in vitro and in vivo. In this study, we synthesized and examined a series of 5-carbon linker-containing mono-carbonyl analogues of curcumin with potent inhibitory activities against TNF-alpha and IL-6 release in LPS-stimulated RAW 264.7 macrophages. Discussion and conclusions are given regarding structure-activity relationships (SAR). The two most potent analogues among the tested compounds, B75 and C12, exhibited anti-inflammatory abilities in a dose-dependent manner in macrophages. This raises the possibility that mono-carbonyl analogues of curcumin might serve as potential agents for the treatment of various inflammatory diseases.
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Affiliation(s)
- Chengguang Zhao
- Bioorganic & Medicinal Chemistry Research Center, School of Pharmacy, Wenzhou Medical College, 1210 College Town, Wenzhou, Zhejiang 325035, China
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Tsai CY, Lee TS, Kou YR, Wu YL. Glucosamine inhibits IL-1β-mediated IL-8 production in prostate cancer cells by MAPK attenuation. J Cell Biochem 2009; 108:489-98. [DOI: 10.1002/jcb.22278] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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The glucosamine-mediated induction of CHOP reduces the expression of inflammatory cytokines by modulating JNK and NF-κB in LPS-stimulated RAW264.7 cells. Genes Genomics 2009. [DOI: 10.1007/bf03191197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Wang YX, Xu XY, Su WL, Wang Q, Zhu WX, Chen F, Jin G, Liu YJ, Li YD, Sun YP, Gao WC, Ruan CP. Activation and clinical significance of p38 MAPK signaling pathway in patients with severe trauma. J Surg Res 2008; 161:119-25. [PMID: 19482318 DOI: 10.1016/j.jss.2008.10.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Revised: 10/29/2008] [Accepted: 10/30/2008] [Indexed: 11/28/2022]
Abstract
BACKGROUND Organ dysfunction or multiple organ dysfunction syndrome caused by developing immunological dysfunction and subsequent sepsis or the systemic inflammatory response syndrome after trauma is the leading cause of death in trauma patient. It is believed that mitogen-activated protein kinase) (p38MAPK) is one of the most important kinases in inflammatory signaling. In this study, the change of p38 MAPK signaling pathway in trauma patient with different severity and its clinical significance in trauma inflammation were investigated. METHODS One hundred fifty major trauma patients were included in the study and divided into three groups according to injury severity score (ISS). All data required to calculate ISS and determine organ function were registered on admission and during the ICU-stay. Peripheral blood samples were collected from trauma patients 6 h, 1 d, 3 d, 5 d, and 7 d after injury. RQ-PCR and Western blot was used to examine the changes in gene expression, protein expression, and activation level of leukocyte p38 MAPK. Plasma IL-6 and TNFalpha were assayed by ELISA. RESULTS Organ dysfunction in 33 trauma patients developed and eight deaths occurred after 24 h in ICU. The causes of death included severe ARDS, MODS, and irreversible brain injury. Incidence of organ dysfunction was related to the increase of injury severity (P < 0.01). Compared with healthy control, the gene expression of p38 MAPK in trauma patients increased significantly 6 h after injury (P < 0.05), and reached a maximum in 1 d (P < 0.01). The expression maintained a high level for 7 d (P < 0.05). One day after injury, significant elevation was observed in protein expression and activation level of p38 MAPK (P < 0.05), as well as the plasma TNFalpha and IL-6 level (P < 0.01). Further investigation found that the gene expression, protein expression, and activation levels of p38 MAPK increased with higher ISS (P < 0.05), and the elevation of plasma TNFalpha and IL-6 level was associated with the increase of activated p38 MAPK and ISS (P < 0.05). CONCLUSION p38 MAPK signal pathway was activated in trauma patients. The severity of trauma had highly positive correlation with the expression and activation of p38 MAPK, as well as the elevation of plasma TNFalpha and IL-6 expression. These findings indicate that p38 MAPK signaling pathway plays an important role in the pathological mechanism of trauma.
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Affiliation(s)
- Yi Xin Wang
- First Aid Center, Shanghai Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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