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Bajgai B, Suri M, Singh H, Hanifa M, Bhatti JS, Randhawa PK, Bali A. Naringin: A flavanone with a multifaceted target against sepsis-associated organ injuries. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155707. [PMID: 38788393 DOI: 10.1016/j.phymed.2024.155707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/16/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024]
Abstract
BACKGROUND Sepsis causes multiple organ dysfunctions and raises mortality and morbidity rates through a dysregulated host response to infection. Despite the growing research interest over the last few years, no satisfactory treatment exists. Naringin, a naturally occurring bioflavonoid with vast therapeutic potential in citrus fruits and Chinese herbs, has received much attention for treating sepsis-associated multiple organ dysfunctions. PURPOSE The review describes preclinical evidence of naringin from 2011 to 2024, particularly emphasizing the mechanism of action mediated by naringin against sepsis-associated specific injuries. The combination therapy, safety profile, drug interactions, recent advancements in formulation, and future perspectives of naringin are also discussed. METHODS In vivo and in vitro studies focusing on the potential role of naringin and its mechanism of action against sepsis-associated organ injuries were identified and summarised in the present manuscript, which includes contributions from 2011 to 2024. All the articles were extracted from the Medline database using PubMed, Science Direct, and Web of Science with relevant keywords. RESULTS Research findings revealed that naringin modulates many signaling cascades, such as Rho/ROCK and PPAR/STAT1, PIP3/AKT and KEAP1/Nrf2, and IkB/NF-kB and MAPK/Nrf2/HO-1, to potentially protect against sepsis-induced intestinal, cardiac, and lung injury, respectively. Furthermore, naringin treatment exhibits anti-inflammatory, anti-apoptotic, and antioxidant action against sepsis harm, highlighting naringin's promising effects in septic settings. Naringin could be employed as a treatment against sepsis, based on studies on combination therapy, synergistic effects, and toxicological investigation that show no reported severe side effects. CONCLUSION Naringin might be a promising therapeutic approach for preventing sepsis-induced multiple organ failure. Naringin should be used alongside other therapeutic therapies with caution despite its great therapeutic potential and lower toxicity. Nonetheless, clinical studies are required to comprehend the therapeutic benefits of naringin against sepsis.
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Affiliation(s)
- Bivek Bajgai
- Laboratory of Neuroendocrinology, Department of Pharmacology, Central University of Punjab, Ghudda, Bathinda, India
| | - Manisha Suri
- Laboratory of Neuroendocrinology, Department of Pharmacology, Central University of Punjab, Ghudda, Bathinda, India
| | - Harshita Singh
- Laboratory of Neuroendocrinology, Department of Pharmacology, Central University of Punjab, Ghudda, Bathinda, India
| | - Mohd Hanifa
- Laboratory of Neuroendocrinology, Department of Pharmacology, Central University of Punjab, Ghudda, Bathinda, India
| | - Jasvinder Singh Bhatti
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Ghudda, Bathinda, India
| | - Puneet Kaur Randhawa
- Department of Pharmaceutical Sciences, Amritsar Group of Colleges, Amritsar, Punjab, 143001, India; Division of Metabolic and Cardiovascular Sciences, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Anjana Bali
- Laboratory of Neuroendocrinology, Department of Pharmacology, Central University of Punjab, Ghudda, Bathinda, India.
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Hawiger J. Advances and transgressions of nuclear transport checkpoint inhibitors. Mol Ther 2024; 32:1181-1184. [PMID: 38574737 PMCID: PMC11081865 DOI: 10.1016/j.ymthe.2024.03.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 03/08/2024] [Accepted: 03/08/2024] [Indexed: 04/06/2024] Open
Affiliation(s)
- Jacek Hawiger
- Vanderbilt University School of Medicine, Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, Nashville, TN, USA; Vanderbilt University School of Medicine, Department of Molecular Physiology and Biophysics, Nashville, TN, USA; Department of Veterans Affairs, Tennessee Valley Health Care System, Nashville, TN, USA.
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3
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Caldwell BA, Li L. Epigenetic regulation of innate immune dynamics during inflammation. J Leukoc Biol 2024; 115:589-606. [PMID: 38301269 PMCID: PMC10980576 DOI: 10.1093/jleuko/qiae026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 02/03/2024] Open
Abstract
Innate immune cells play essential roles in modulating both immune defense and inflammation by expressing a diverse array of cytokines and inflammatory mediators, phagocytizing pathogens to promote immune clearance, and assisting with the adaptive immune processes through antigen presentation. Rudimentary innate immune "memory" states such as training, tolerance, and exhaustion develop based on the nature, strength, and duration of immune challenge, thereby enabling dynamic transcriptional reprogramming to alter present and future cell behavior. Underlying transcriptional reprogramming are broad changes to the epigenome, or chromatin alterations above the level of DNA sequence. These changes include direct modification of DNA through cytosine methylation as well as indirect modifications through alterations to histones that comprise the protein core of nucleosomes. In this review, we will discuss recent advances in our understanding of how these epigenetic changes influence the dynamic behavior of the innate immune system during both acute and chronic inflammation, as well as how stable changes to the epigenome result in long-term alterations of innate cell behavior related to pathophysiology.
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Affiliation(s)
- Blake A. Caldwell
- Department of Biological Sciences, Virginia Tech, 970 Washington St. SW, Blacksburg, VA 24061-0910, USA
| | - Liwu Li
- Department of Biological Sciences, Virginia Tech, 970 Washington St. SW, Blacksburg, VA 24061-0910, USA
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Zhou J, Li C, Lu M, Jiang G, Chen S, Li H, Lu K. Pharmacological induction of autophagy reduces inflammation in macrophages by degrading immunoproteasome subunits. PLoS Biol 2024; 22:e3002537. [PMID: 38447109 PMCID: PMC10917451 DOI: 10.1371/journal.pbio.3002537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 02/05/2024] [Indexed: 03/08/2024] Open
Abstract
Defective autophagy is linked to proinflammatory diseases. However, the mechanisms by which autophagy limits inflammation remain elusive. Here, we found that the pan-FGFR inhibitor LY2874455 efficiently activated autophagy and suppressed expression of proinflammatory factors in macrophages stimulated by lipopolysaccharide (LPS). Multiplex proteomic profiling identified the immunoproteasome, which is a specific isoform of the 20s constitutive proteasome, as a substrate that is degraded by selective autophagy. SQSTM1/p62 was found to be a selective autophagy-related receptor that mediated this degradation. Autophagy deficiency or p62 knockdown blocked the effects of LY2874455, leading to the accumulation of immunoproteasomes and increases in inflammatory reactions. Expression of proinflammatory factors in autophagy-deficient macrophages could be reversed by immunoproteasome inhibitors, confirming the pivotal role of immunoproteasome turnover in the autophagy-mediated suppression on the expression of proinflammatory factors. In mice, LY2874455 protected against LPS-induced acute lung injury and dextran sulfate sodium (DSS)-induced colitis and caused low levels of proinflammatory cytokines and immunoproteasomes. These findings suggested that selective autophagy of the immunoproteasome was a key regulator of signaling via the innate immune system.
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Affiliation(s)
- Jiao Zhou
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Chunxia Li
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| | - Meng Lu
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| | - Gaoyue Jiang
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| | - Shanze Chen
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University, Shenzhen People’s Hospital, Shenzhen Institute of Respiratory Diseases, Shenzhen, China
| | - Huihui Li
- West China Second University Hospital, Sichuan University, Chengdu, China
| | - Kefeng Lu
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
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5
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Ren Z, Chen W, Getachew T, Mwacharo JM, Haile A, Sun W. Expression analysis of TLR signaling pathway genes under lipopolysaccharide-induced and E. coli F17-infected sheep intestinal epithelial cells. Anim Biotechnol 2023; 34:1815-1821. [PMID: 35544537 DOI: 10.1080/10495398.2022.2052305] [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] [Indexed: 11/01/2022]
Abstract
Escherichia coli (E. coli) F17 is one of the main pathogens causing diarrhea in young livestock. The specific F17 fimbriae and lipopolysaccharide (LPS) in the surface components of E. coli F17 induces immune activation via interacting with the intestinal epithelial cells (IECs)-expressed innate immune toll-like receptors (TLRs) signaling pathway. In this study, the expression patterns of eight canonical genes from the TLR signaling pathway (IL-6, IL-8, IL-1β, TLR4, MyD88, CD14, TNF-α and TRAF6) were analyzed in LPS-induced IECs, E. coli F17-infected IECs and ileum tissue of E. coli F17-infected lambs. The results showed that increased expression levels of all the studied genes were observed following post-LPS-induced and E. coli F17-infected treatment, with TLR4 having the highest up-regulated expression multiple (compared to NC, fold change = 17.94 and 20.11, respectively), and CD14 having the lowest up-regulated expression multiple (fold change = 2.68 and 1.59, respectively), and higher expression levels of all the studied TLR signaling pathway genes were observed in ileum tissue of E. coli F17 antagonistic (AN) lambs than in E. coli F17 sensitive (SE) lambs. Furthermore, when compared to LPS-induced IECs, E. coli F17-infected IECs showed a more pronounced increase in the expression of IL6, TLR4 and TNF-α, indicating the different roles of these genes in the IECs resistance to E. coli F17 infection. Our results demonstrate that the TLR signaling pathway likely promotes immune activation and provide the first evidence that TLRs have a significant potential to protect against E. coli F17 infections.
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Affiliation(s)
- Ziming Ren
- College of Animal Science and Technology, Yangzhou University, Yangzhou, PR China
| | - Weihao Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou, PR China
| | - Tesfaye Getachew
- International Centre for Agricultural Research in the Dry Areas, Addis Ababa, Ethiopia
| | - Joram M Mwacharo
- International Centre for Agricultural Research in the Dry Areas, Addis Ababa, Ethiopia
| | - Aynalem Haile
- International Centre for Agricultural Research in the Dry Areas, Addis Ababa, Ethiopia
| | - Wei Sun
- College of Animal Science and Technology, Yangzhou University, Yangzhou, PR China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, PR China
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Han J, Ham JR, Lee MJ, Lee HJ, Son YJ, Lee MK. "Nulichal" Barley Extract Suppresses Nitric Oxide and Pro-Inflammatory Cytokine Production by Lipopolysaccharides in RAW264.7 Macrophage Cell Line. Prev Nutr Food Sci 2023; 28:370-376. [PMID: 37842259 PMCID: PMC10567604 DOI: 10.3746/pnf.2023.28.3.370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 10/17/2023] Open
Abstract
The cultivar "Nulichal," a type of naked waxy barley (Hordeum vulgare L.), was developed by the National Institute of Crop Science, Rural Development Administration, Korea, in 2010. In this study, we investigated the anti-inflammatory and antioxidant properties of the "Nulichal" ethanol extract (NRE) using various assays. The NRE exhibited a total phenolic content of 7.55±0.30 mg gallic acid equivalent/g and a flavonoid content of 1.74±0.08 mg rutin equivalent/g. Cell viability assays showed no toxicity of NRE on RAW264.7 macrophage cells up to concentrations of 500 μg/mL. The NRE (300 and 500 μg/mL) significantly reduced nitric oxide (NO) production induced by lipopolysaccharides (LPS). It also down-regulated the mRNA expression and protein levels of inducible NO synthase and cyclooxygenase-2 in a dose-dependent manner. Moreover, the NRE treatment significantly decreased the levels of pro-inflammatory cytokines, such as tumor necrosis factor-α and interleukin-6, and their mRNA expression compared to LPS treatment alone. The NRE demonstrated strong free radical scavenging activity against 2,2-diphenyl-1-picrylhydrazyl and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radicals in a dose-dependent manner. The ferric reducing antioxidant power assay also showed increased antioxidant activity with increasing NRE concentrations. These findings suggest that the NRE can be used as a functional food with anti-inflammatory and antioxidant properties.
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Affiliation(s)
- Jisu Han
- Department of Food and Nutrition, Sunchon National University, Jeonnam 57922, Korea
| | - Ju Ri Ham
- Mokpo Marine Food-Industry Research Center, Jeonnam 5861, Korea
| | - Mi Ja Lee
- Crop Foundation Research Division, National Institute of Crop Science, Rural Development Administration (RDA), Jeonbuk 5565, Korea
| | - Hyun-Jin Lee
- Crop Foundation Research Division, National Institute of Crop Science, Rural Development Administration (RDA), Jeonbuk 5565, Korea
| | - Young-Jin Son
- Department of Pharmacy, Sunchon National University, Jeonnam 57922, Korea
| | - Mi-Kyung Lee
- Department of Food and Nutrition, Sunchon National University, Jeonnam 57922, Korea
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Huang D, Guo Y, Li X, Pan M, Liu J, Zhang W, Mai K. Vitamin D 3/VDR inhibits inflammation through NF-κB pathway accompanied by resisting apoptosis and inducing autophagy in abalone Haliotis discus hannai. Cell Biol Toxicol 2023; 39:885-906. [PMID: 34637036 DOI: 10.1007/s10565-021-09647-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/16/2021] [Indexed: 01/08/2023]
Abstract
Vitamin D3 is believed to be a contributing factor to innate immunity. Vitamin D receptor (VDR) has a positive effect on inhibiting nuclear factor κB (NF-κB)-mediated inflammation. The underlying molecular mechanisms remain unclear, particularly in mollusks. Consequently, this study will investigate the process of vitamin D3/VDR regulating NF-κB pathway and further explore their functions on inflammation, autophagy, and apoptosis in abalone Haliotis discus hannai. Results showed that knockdown of VDR by using siRNA and dsRNA of VDR in vitro and in vivo led to more intense response of NF-κB signaling to lipopolysaccharide and higher level of apoptosis and autophagy. In addition, 1,25(OH)2D3 stimulation after VDR silencing could partially alleviate apoptosis and induce autophagy. Overexpression of VDR restricted the K48-polyubiquitin chain-dependent inhibitor of κB (IκB) ubiquitination and apoptosis-associated speck-like protein containing CARD (ASC) oligomerization. Besides, VDR silencing resulted in increase of ASC speck formation. In further mechanistic studies, we showed that VDR can directly bind to IκB and IKK1 in vitro and in vivo. In the feeding trial, H&E staining, TUNEL, and electron microscope results showed that vitamin D3 deficiency (0 IU/kg) could recruit more basophilic cells and increase more TUNEL-positive apoptotic cells and lipid droplets (LDs) than vitamin D3 supplement (1000 IU/kg and 5000 IU/kg). In summary, abalone VDR plays a negative regulator role in NF-κB-mediated inflammation via interacting with IκB and inhibiting ubiquitin-dependent degradation of IκB. Vitamin D3 in combination with VDR is essential to establish a delicate balance between autophagy and apoptosis in response to inflammation.
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Affiliation(s)
- Dong Huang
- The Key Laboratory of Mariculture (Ministry of Education), The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), Fisheries College, Ocean University of China, Qingdao, 266003, China
| | - Yanlin Guo
- The Key Laboratory of Mariculture (Ministry of Education), The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), Fisheries College, Ocean University of China, Qingdao, 266003, China
| | - Xinxin Li
- The Key Laboratory of Mariculture (Ministry of Education), The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), Fisheries College, Ocean University of China, Qingdao, 266003, China
| | - Mingzhu Pan
- The Key Laboratory of Mariculture (Ministry of Education), The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), Fisheries College, Ocean University of China, Qingdao, 266003, China
| | - Jiahuan Liu
- The Key Laboratory of Mariculture (Ministry of Education), The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), Fisheries College, Ocean University of China, Qingdao, 266003, China
| | - Wenbing Zhang
- The Key Laboratory of Mariculture (Ministry of Education), The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), Fisheries College, Ocean University of China, Qingdao, 266003, China.
| | - Kangsen Mai
- The Key Laboratory of Mariculture (Ministry of Education), The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), Fisheries College, Ocean University of China, Qingdao, 266003, China
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Cao L, Gao S, Liu J, Wang J, Qin R. Selenomethionine protects against Escherichia coli-induced endometritis by inhibiting inflammation and necroptosis via regulating the PPAR-γ/NF-κB pathway. Chem Biol Interact 2023; 379:110532. [PMID: 37150495 DOI: 10.1016/j.cbi.2023.110532] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/27/2023] [Accepted: 05/05/2023] [Indexed: 05/09/2023]
Abstract
Endometritis, inflammation of the endometrium, is a major cause of subfertility in women. Selenomethionine (SeMet)is known to exert anti-inflammatory activity. We aimed to verify the protective roles of SeMet on Escherichia coli (E.coli)-induced endometritis. The extent of uterus damage was assessed by detecting histopathology and inflammatory mediators. The results revealed that SeMet significantly prevented E.coli-induced endometritis by attenuating uterine histopathology and inflammatory cytokine production. E.coli-induced MPO activity and MDA content were inhibited by SeMey. E.coli-induced ZO-1 and occludin were upregulated by SeMet. E.coli-induced necroptosis was also inhibited by SeMet. Additionally, E.coli-induced NF-κB activation was alleviated by SeMet. PPAR-γ expression was upregulated by SeMet. Notably, the protective effects of SeMet on endometritis were abolished by a PPAR-γ inhibitor. In conclusion, SeMet inhibits E.coli-induced endometritis by attenuating inflammation and necroptosis, which is mediated by the PPAR-γ/NF-κB signaling pathway.
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Affiliation(s)
- Lu Cao
- Department of Obstetrics, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province, 130033, China
| | - Shouyang Gao
- Department of Obstetrics, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province, 130033, China
| | - Junbao Liu
- Department of Gynecology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130033, China
| | - Junrong Wang
- Department of Gynecology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130033, China.
| | - Rui Qin
- Department of Gynecology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130033, China.
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Sahabuddin ES, Noreen A, Daabo HMA, Kandeel M, Saleh MM, Al-Qaim ZH, Jawad MA, Sivaraman R, Fenjan MN, Mustafa YF, Heidary A, Abarghouei S, Norbakhsh M. Microplastic and oil pollutant agglomerates synergistically intensify toxicity in the marine fish, Asian seabass, Lates calcalifer. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 98:104059. [PMID: 36603608 DOI: 10.1016/j.etap.2022.104059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 12/22/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
Asian seabass, Lates calcarifer frys were exposed to polystyrene (MP: 0.5 mg/l), oil (0.83 ml/l) and agglomerates (MP + oil + Corexit) as eight treatments in three replicates, and fresh synthetic marine water (control) for 15 days. The synergistic effect was confirmed (P ˂ 0.05) by bio-indicators including RBC count, total plasma protein, aspartate aminotransferase (AST), catalase (CAT), glutathione S-transferase (GST), basophils, thrombocyte and eosinophils percentages. Most of the significant and synergistic effects were observed in the highest doses (5 mg/l MP and 5 mg/l MP-oil-dispersant). Exposure to MP and a combination of MP+ oil caused tissue lesions in gill, liver and intestine. Our results suggest there are no critical health issues for Asian seabass in natural environments. However, the bioaccumulation of MPs, oil, and their agglomerates in consumers' bodies may remain a concern.
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Affiliation(s)
- Erma Suryani Sahabuddin
- Population and Enviromental Education Studies, Universitas Negeri Makassar, Makassar, Indonesia
| | - Ayesha Noreen
- Department of Social Environmental Sciences, Graduate School of Social Sciences, Ankara University, Ankara, Turkey.
| | | | - Mahmoud Kandeel
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Hofuf, 31982 Al-Ahsa, Saudi Arabia; Department of Pharmacology, Faculty of Veterinary Medicine, Kafrelshikh University, Kafrelshikh 33516, Egypt
| | | | | | | | | | - Mohammed N Fenjan
- College of Health and Medical Technology, Al-Ayen University, Thi-Qar, Iraq
| | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul 41001, Iraq
| | - Aadel Heidary
- Environmental Expert of Farsan Municipality, Shahrekord, Iran
| | - Safoura Abarghouei
- Bahar Avaran Nastaran Agricultural University of Applied Sciences Qom, Qom, Iran
| | - Maryam Norbakhsh
- Department of Microbiology, Faculty of Biology, Islamic Azad University Science and Research Branch, Tehran, Iran
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Signaling pathways involved in paraquat-induced pulmonary toxicity: Molecular mechanisms and potential therapeutic drugs. Int Immunopharmacol 2022; 113:109301. [DOI: 10.1016/j.intimp.2022.109301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/19/2022] [Accepted: 09/28/2022] [Indexed: 11/05/2022]
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Xu J, Wei Y, Liu Q, Liu X, Zhu C, Tu Y, Lei J, Yu J. The bioactive amide alkaloids from the stems of Piper nigrum. Food Chem 2022; 405:134736. [DOI: 10.1016/j.foodchem.2022.134736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/24/2022] [Accepted: 10/22/2022] [Indexed: 11/04/2022]
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12
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Zhang X, Zhang X, Luo H, Shu R, Guo L, Zhou J, Tan B, Guo X, Wang Y, Tian Y. Platelet-To-Lymphocyte and Neutrophil-To-Lymphocyte Ratios Predict Intestinal Injury in Male Heroin Addicts. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:2195330. [PMID: 35880090 PMCID: PMC9308521 DOI: 10.1155/2022/2195330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/24/2022] [Accepted: 06/30/2022] [Indexed: 11/24/2022]
Abstract
Objective To explore the potential link between gut damage and proinflammatory cytokines in heroin-dependent patients. Methods We retrospectively analyzed and compared partial blood counts and biomarkers of intestinal injury and their potential correlations in 38 male heroin abuse patients and 29 healthy male participants. In addition, we compared and assessed proinflammatory cytokines and immune cells in 10 heroin abuse patients and 10 healthy participants. Results Neutrophil counts, platelets/lymphocytes (PLR), neutrophils/lymphocytes (NLR), gut injury biomarkers, and proinflammatory cytokines, CD19+B in patients compared with healthy subjects' cells increased significantly. The number of lymphocytes, CD3 CD4 T cells, and CD3 CD8 T cells decreased in patients compared to healthy individuals. When distinguishing between heroin addicts and healthy people, ROC/AUC analysis showed that a cutoff of 142.42 for PLR and 2.18 for NLR yielded a sensitivity of 65% and 85% and a specificity of 96.5% and 89.7%, respectively (p = 0.001, p < 0.001). For predicting intestinal injury, ROC/AUC analysis showed that a cutoff of 135.7 for PLR and 0.15 for NLR yielded a sensitivity of 52% and 60% and a specificity of 82% and 86.4%, respectively (p = 0.003, p = 0.009). Male heroin addicts are subject to intestinal injury and present with increased proinflammatory cytokine levels. Conclusion NLR and PLR are possible indirect biomarkers for heroin dependence based on intestinal injury.
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Affiliation(s)
- Xinfeng Zhang
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, China Kunming, Yunnan 650032
| | - Xiaoli Zhang
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, China Kunming, Yunnan 650032
| | - Huayou Luo
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, China Kunming, Yunnan 650032
| | - Ruo Shu
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, China Kunming, Yunnan 650032
| | - Li Guo
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, China Kunming, Yunnan 650032
| | - Jinghong Zhou
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, China Kunming, Yunnan 650032
| | - Bowen Tan
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, China Kunming, Yunnan 650032
| | - Xiao Guo
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, China Kunming, Yunnan 650032
| | - Yuhan Wang
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, China Kunming, Yunnan 650032
| | - Yan Tian
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, China Kunming, Yunnan 650032
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Mifflin KA, Brennan FH, Guan Z, Kigerl KA, Filous AR, Mo X, Schwab JM, Popovich PG. Spinal Cord Injury Impairs Lung Immunity in Mice. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:157-170. [PMID: 35697382 PMCID: PMC9246940 DOI: 10.4049/jimmunol.2200192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 04/22/2022] [Indexed: 06/15/2023]
Abstract
Pulmonary infection is a leading cause of morbidity and mortality after spinal cord injury (SCI). Although SCI causes atrophy and dysfunction in primary and secondary lymphoid tissues with a corresponding decrease in the number and function of circulating leukocytes, it is unknown whether this SCI-dependent systemic immune suppression also affects the unique tissue-specific antimicrobial defense mechanisms that protect the lung. In this study, we tested the hypothesis that SCI directly impairs pulmonary immunity and subsequently increases the risk for developing pneumonia. Using mouse models of severe high-level SCI, we find that recruitment of circulating leukocytes and transcriptional control of immune signaling in the lung is impaired after SCI, creating an environment that is permissive for infection. Specifically, we saw a sustained loss of pulmonary leukocytes, a loss of alveolar macrophages at chronic time points postinjury, and a decrease in immune modulatory genes, especially cytokines, needed to eliminate pulmonary infections. Importantly, this injury-dependent impairment of pulmonary antimicrobial defense is only partially overcome by boosting the recruitment of immune cells to the lung with the drug AMD3100, a Food and Drug Administration-approved drug that mobilizes leukocytes and hematopoietic stem cells from bone marrow. Collectively, these data indicate that the immune-suppressive effects of SCI extend to the lung, a unique site of mucosal immunity. Furthermore, preventing lung infection after SCI will likely require novel strategies, beyond the use of orthodox antibiotics, to reverse or block tissue-specific cellular and molecular determinants of pulmonary immune surveillance.
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Affiliation(s)
- Katherine A Mifflin
- Department of Neuroscience, The Ohio State University, Columbus, OH
- Belford Center for Spinal Cord Injury, The Ohio State University, Columbus, OH
- Center for Brain and Spinal Cord Repair, The Ohio State University, Columbus, OH
| | - Faith H Brennan
- Department of Neuroscience, The Ohio State University, Columbus, OH
- Belford Center for Spinal Cord Injury, The Ohio State University, Columbus, OH
- Center for Brain and Spinal Cord Repair, The Ohio State University, Columbus, OH
| | - Zhen Guan
- Department of Neuroscience, The Ohio State University, Columbus, OH
- Belford Center for Spinal Cord Injury, The Ohio State University, Columbus, OH
- Center for Brain and Spinal Cord Repair, The Ohio State University, Columbus, OH
| | - Kristina A Kigerl
- Department of Neuroscience, The Ohio State University, Columbus, OH
- Belford Center for Spinal Cord Injury, The Ohio State University, Columbus, OH
- Center for Brain and Spinal Cord Repair, The Ohio State University, Columbus, OH
| | - Angela R Filous
- Belford Center for Spinal Cord Injury, The Ohio State University, Columbus, OH
- Center for Brain and Spinal Cord Repair, The Ohio State University, Columbus, OH
- Department of Neurology, The Ohio State University, Wexner Medical Center, Columbus, OH; and
| | - Xiaokui Mo
- Department of Biomedical Informatics, The Ohio State University, Center for Biostatistics, Columbus, OH
| | - Jan M Schwab
- Department of Neuroscience, The Ohio State University, Columbus, OH
- Belford Center for Spinal Cord Injury, The Ohio State University, Columbus, OH
- Center for Brain and Spinal Cord Repair, The Ohio State University, Columbus, OH
- Department of Neurology, The Ohio State University, Wexner Medical Center, Columbus, OH; and
| | - Phillip G Popovich
- Department of Neuroscience, The Ohio State University, Columbus, OH;
- Belford Center for Spinal Cord Injury, The Ohio State University, Columbus, OH
- Center for Brain and Spinal Cord Repair, The Ohio State University, Columbus, OH
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14
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Anti-Inflammatory Activities of an Anti-Histamine Drug, Loratadine, by Suppressing TAK1 in AP-1 Pathway. Int J Mol Sci 2022; 23:ijms23073986. [PMID: 35409346 PMCID: PMC8999734 DOI: 10.3390/ijms23073986] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/01/2022] [Accepted: 04/01/2022] [Indexed: 02/05/2023] Open
Abstract
Loratadine is an anti-histamine routinely used for treating allergies. However, recent findings have shown that Loratadine may also have anti-inflammatory functions, while their exact mechanisms have not yet been fully uncovered. In this paper, we investigated whether Loratadine can be utilized as an anti-inflammatory drug through a series of in vitro and in vivo experiments using a murine macrophage cell line and an acute gastritis mouse model. Loratadine was found to dramatically reduce the expression of pro-inflammatory genes, including MMP1, MMP3, and MMP9, and inhibit AP-1 transcriptional activation, as demonstrated by the luciferase assay. Therefore, we decided to further explore its role in the AP-1 signaling pathway. The expression of c-Jun and c-Fos, AP-1 subunits, was repressed by Loratadine and, correspondingly, the expression of p-JNK, p-MKK7, and p-TAK1 was also inhibited. In addition, Loratadine was able to reduce gastric bleeding in acute gastritis-induced mice; Western blotting using the stomach samples showed reduced p-c-Fos protein levels. Loratadine was shown to effectively suppress inflammation by specifically targeting TAK1 and suppressing consequent AP-1 signaling pathway activation and inflammatory cytokine production.
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15
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Fatty Acid Amide Hydrolase (FAAH) Inhibition Plays a Key Role in Counteracting Acute Lung Injury. Int J Mol Sci 2022; 23:ijms23052781. [PMID: 35269926 PMCID: PMC8910911 DOI: 10.3390/ijms23052781] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/26/2022] [Accepted: 03/01/2022] [Indexed: 02/01/2023] Open
Abstract
Acute lung injury (ALI) is a group of lung illnesses characterized by severe inflammation, with no treatment. The fatty acid amide hydrolase (FAAH) enzyme is an integral membrane protein responsible for the hydrolysis of the main endocannabinoids, such as anandamide (AEA). In pre-clinical pain and inflammation models, increasing the endogenous levels of AEA and other bioactive fatty acid amides (FAAs) via genetic deletion or the pharmacological inhibition of FAAH produces many analgesic benefits in several different experimental models. To date, nobody has investigated the role of FAAH inhibition on an ALI mouse model. Mice were subjected to a carrageenan injection and treated orally 1 h after with the FAAH inhibitor URB878 dissolved in a vehicle consisting of 10% PEG-400, 10% Tween-80 and 80% saline at different doses: The inhibition of FAAH activity was able to counteract not only the CAR-induced histological alteration, but also the cascade of related inflammatory events. URB878 clears the way for further studies based on FAAH inhibition in acute lung pathologies.
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16
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Kirk SG, Murphy PR, Wang X, Cash CJ, Barley TJ, Bowman BA, Batty AJ, Ackerman WE, Zhang J, Nelin LD, Hafner M, Liu Y. Knockout of MAPK Phosphatase-1 Exaggerates Type I IFN Response during Systemic Escherichia coli Infection. THE JOURNAL OF IMMUNOLOGY 2021; 206:2966-2979. [PMID: 34039638 DOI: 10.4049/jimmunol.2001468] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 04/05/2021] [Indexed: 11/19/2022]
Abstract
We have previously shown that Mkp-1-deficient mice produce elevated TNF-α, IL-6, and IL-10 following systemic Escherichia coli infection, and they exhibited increased mortality, elevated bacterial burden, and profound metabolic alterations. To understand the function of Mkp-1 during bacterial infection, we performed RNA-sequencing analysis to compare the global gene expression between E. coli-infected wild-type and Mkp-1 -/- mice. A large number of IFN-stimulated genes were more robustly expressed in E. coli-infected Mkp-1 -/- mice than in wild-type mice. Multiplex analysis of the serum cytokine levels revealed profound increases in IFN-β, IFN-γ, TNF-α, IL-1α and β, IL-6, IL-10, IL-17A, IL-27, and GMSF levels in E. coli-infected Mkp-1 -/- mice relative to wild-type mice. Administration of a neutralizing Ab against the receptor for type I IFN to Mkp-1 -/- mice prior to E. coli infection augmented mortality and disease severity. Mkp-1 -/- bone marrow-derived macrophages (BMDM) produced higher levels of IFN-β mRNA and protein than did wild-type BMDM upon treatment with LPS, E. coli, polyinosinic:polycytidylic acid, and herring sperm DNA. Augmented IFN-β induction in Mkp-1 -/- BMDM was blocked by a p38 inhibitor but not by an JNK inhibitor. Enhanced Mkp-1 expression abolished IFN-β induction by both LPS and E. coli but had little effect on the IFN-β promoter activity in LPS-stimulated RAW264.7 cells. Mkp-1 deficiency did not have an overt effect on IRF3/7 phosphorylation or IKK activation but modestly enhanced IFN-β mRNA stability in LPS-stimulated BMDM. Our results suggest that Mkp-1 regulates IFN-β production primarily through a p38-mediated mechanism and that IFN-β plays a beneficial role in E. coli-induced sepsis.
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Affiliation(s)
- Sean G Kirk
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH
| | - Parker R Murphy
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH
| | - Xiantao Wang
- Laboratory of Muscle Stem Cells and Gene Regulation, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
| | - Charles J Cash
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH
| | - Timothy J Barley
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH
| | - Bridget A Bowman
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH
| | - Abel J Batty
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH
| | - William E Ackerman
- Department of Obstetrics and Gynecology, University of Illinois at Chicago College of Medicine, Chicago, IL
| | - Jian Zhang
- Department of Pathology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA; and
| | - Leif D Nelin
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH.,Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH
| | - Markus Hafner
- Laboratory of Muscle Stem Cells and Gene Regulation, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
| | - Yusen Liu
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH; .,Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH
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17
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Lee MR, Kim JE, Park JJ, Choi JY, Song BR, Choi YW, Kim DS, Kim KM, Song HK, Hwang DY. Protective role of fermented mulberry leave extract in LPS‑induced inflammation and autophagy of RAW264.7 macrophage cells. Mol Med Rep 2020; 22:4685-4695. [PMID: 33174019 PMCID: PMC7646855 DOI: 10.3892/mmr.2020.11563] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 05/18/2020] [Indexed: 12/13/2022] Open
Abstract
Mulberry leaves have antioxidant activity and anti‑inflammatory effects in several types of cells. However, the efficacy of mulberry leaves fermented with Cordyceps militaris remains unknown. Therefore, the present study aimed to investigate whether the ethanol extracts of mulberry leaves fermented with C. militaris (EMfC) can prevent lipopolysaccharide (LPS)‑induced inflammation and autophagy in macrophages. To achieve this, RAW264.7 cells pretreated with three different dose of EMfCs were subsequently stimulated with LPS, and examined for alterations in the regulatory factors of inflammatory responses and key parameters of the autophagy signaling pathway. EMfC treatment inhibited the generation of reactive oxidative species; however, significant activity was observed for 2,2‑diphenyl‑1‑picrylhydrazyl (DPPH) radical scavenging (IC50=579.6703 mg/ml). Most regulatory factors in inflammatory responses were significantly inhibited following treatment with EMfC, without any significant cellular toxicity. EMfC‑treated groups exhibited marked suppression of nitrogen oxide (NO) levels, mRNA expression levels of iNOS/COX‑2, levels of all inflammatory cytokines (TNF‑α, IL‑1β and IL‑6) and phosphorylation of MAPK members, as well as recovery of cell cycle progression. Furthermore, similar effects were observed in the LPS‑induced autophagy signaling pathway of RAW264.7 cells. The expression levels of microtubule‑associated protein 1A/1B‑light chain 3 (LC3) and Beclin exhibited a dose‑dependent decrease in the EMfC+LPS‑treated groups compared with in the Vehicle+LPS‑treated group, whereas the phosphorylation of PI3K and mTOR were enhanced in a dose‑dependent manner in the same groups. Overall, the results of the present study provide evidence that exposure to EMfC protects against LPS‑induced inflammation and autophagy in RAW264.7 cells. These results indicated that EMfC is a potential candidate for treatment of inflammatory diseases.
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Affiliation(s)
- Mi Rim Lee
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Ji Eun Kim
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Jin Ju Park
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Jun Young Choi
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Bo Ram Song
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Young Whan Choi
- Department of Horticultural Life Sciences, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Dong-Seob Kim
- Department of Food Science and Technology, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Kyung Mi Kim
- Life Science Research Institute, Novarex Co., Ltd., Chungju 28126, Republic of Korea
| | - Hyun Keun Song
- Central Research Institute, Kinesciences Co., Seoul 02850, Republic of Korea
| | - Dae Youn Hwang
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
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18
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Kim IW, Lee JH, Seo M, Lee HJ, Baek M, Kim MA, Shin YP, Kim SH, Kim I, Hwang JS. Anti-Inflammatory Activity of Antimicrobial Peptide Periplanetasin-5 Derived from the Cockroach Periplaneta americana. J Microbiol Biotechnol 2020; 30:1282-1289. [PMID: 32522957 PMCID: PMC9728328 DOI: 10.4014/jmb.2004.04046] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/02/2020] [Accepted: 06/02/2020] [Indexed: 12/15/2022]
Abstract
Previously, we performed an in silico analysis of the Periplaneta americana transcriptome. Antimicrobial peptide candidates were selected using an in silico antimicrobial peptide prediction method. It was found that periplanetasin-5 had antimicrobial activity against yeast and grampositive and gram-negative bacteria. In the present study, we demonstrated the anti-inflammatory activities of periplanetasin-5 in mouse macrophage Raw264.7 cells. No cytotoxicity was observed at 60 μg/ml periplanetasin-5, and treatment decreased nitric oxide production in Raw264.7 cells exposed to lipopolysaccharide (LPS). In addition, quantitative RT-PCR and enzyme-linked immunosorbent assay revealed that periplanetasin-5 reduced cytokine (tumor necrosis factor-α, interleukin-6) expression levels in the Raw264.7 cells. Periplanetasin-5 controlled inflammation by inhibiting phosphorylation of MAPKs, an inflammatory signaling element, and reducing the degradation of IκB. Through LAL assay, LPS toxicity was found to decrease in a periplanetasin-5 dose-dependent manner. Collectively, these data showed that periplanetasin-5 had antiinflammatory activities, exemplified in LPS-exposed Raw264.7 cells. Thus, we have provided a potentially useful antibacterial peptide candidate with anti-inflammatory activities.
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Affiliation(s)
- In-Woo Kim
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Republic of Korea,College of Agriculture & Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Joon Ha Lee
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Minchul Seo
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Hwa Jeong Lee
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Minhee Baek
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Mi-Ae Kim
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Yong Pyo Shin
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Sung Hyun Kim
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Iksoo Kim
- College of Agriculture & Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea,Iksoo Kim E-mail:
| | - Jae Sam Hwang
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Republic of Korea,Corresponding author Jae Sam Hwang Phone: +82-63-238-2974 E-mail:
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19
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Zhou H, Cao H, Zheng Y, Lu Z, Chen Y, Liu D, Yang H, Quan J, Huo C, Liu J, Yu L. Liang-Ge-San, a classic traditional Chinese medicine formula, attenuates acute inflammation in zebrafish and RAW 264.7 cells. JOURNAL OF ETHNOPHARMACOLOGY 2020; 249:112427. [PMID: 31778782 DOI: 10.1016/j.jep.2019.112427] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/17/2019] [Accepted: 11/25/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Liang-Ge-San (LGS) is a traditional Chinese medicine formula that commonly used in acute inflammatory diseases. However, the anti-inflammatory effects and the underlying mechanisms of LGS are not fully studied. AIM OF THE STUDY This study aims to investigate the anti-inflammatory activity and explore the underlying mechanisms of LGS in zebrafish and cell inflammation models. MATERIALS AND METHODS LPS-induced zebrafish inflammation model was established by LPS-yolk microinjection. The protective effect of LGS on zebrafish injected with LPS was observed using survival analysis. Infiltration of inflammatory cells was determined by H&E staining assay. Expression levels of key inflammatory cytokines TNF-α and IL-6 were measured by q-PCR assay. Recruitment of neutrophils and macrophages were observed by fluorescence microscopy, SB staining and NR staining. In vitro anti-inflammatory effects of LGS were evaluated on LPS-stimulated RAW 264.7 cells. The generation of IL-6 and TNF-α was detected by ELISA. The protein expression levels of JNK, p-JNK (Thr183/Tyr185), Nur77 and p-Nur77 (Ser351) were determined by Western blotting. Finally, two additional inflammatory models in zebrafish, which were induced by CuSO4 or tail fin injury, were also established and the recruitment of neutrophils and macrophages were observed for the determination of the anti-inflammatory activity of LGS. RESULTS LGS protected zebrafish against LPS-induced death and dose-dependently inhibited LPS-induced acute inflammatory response in zebrafish, as indicated by increased survival rate, reduced infiltration of inflammatory cells, decreased recruitment of macrophages and neutrophils, and downregulated expression levels of TNF-α and IL-6. Additionally, LGS inhibited the secretion of TNF-α and IL-6, increased the expression of Nur77, and reduced the expression of p-Nur77 (Ser351) and p-JNK (Thr183/Tyr185) in LPS-stimulated RAW 264.7 cells. The anti-inflammatory action of LGS was also observed in another two zebrafish inflammation models, which was supported by the inhibition on neutrophils and macrophages recruitment. CONCLUSION The present study demonstrates that LGS possesses anti-inflammatory activity in zebrafish inflammation models and LPS-stimulated RAW 264.7 cells, which is related to the inhibition on p-JNK and p-Nur77. This finding provides a pharmacological basis for LGS in the control of inflammatory disorder.
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Affiliation(s)
- Hongling Zhou
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, PR China
| | - Huihui Cao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, PR China
| | - Yuanru Zheng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, PR China
| | - Zibin Lu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, PR China
| | - Yuyao Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, PR China
| | - Dongyi Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, PR China
| | - Huayi Yang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, PR China
| | - Jingyu Quan
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, PR China
| | - Chuying Huo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, PR China
| | - Junshan Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, PR China.
| | - Linzhong Yu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, PR China.
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20
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Song H, Hwang D, Song B, Kim J, Park J, Lee M, Choi J, Noh J. Methanolic extracts of Capparis ecuadorica iltis inhibit the inflammatory response in lipopolysaccharide-stimulated RAW 264.7 macrophage cells. Pharmacogn Mag 2020. [DOI: 10.4103/pm.pm_464_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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21
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Coronary Artery Disease: From Mechanism to Clinical Practice. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1177:1-36. [PMID: 32246442 DOI: 10.1007/978-981-15-2517-9_1] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In most developed countries, coronary artery disease (CAD), mostly caused by atherosclerosis of coronary arteries, is one of the primary causes of death. From 1990s to 2000s, mortality caused by acute MI declined up to 50%. The incidence of CAD is related with age, gender, economic, etc. Atherosclerosis contains some highly correlative processes such as lipid disturbances, thrombosis, inflammation, vascular smooth cell activation, remodeling, platelet activation, endothelial dysfunction, oxidative stress, altered matrix metabolism, and genetic factors. Risk factors of CAD exist among many individuals of the general population, which includes hypertension, lipids and lipoproteins metabolism disturbances, diabetes mellitus, chronic kidney disease, age, genders, lifestyle, cigarette smoking, diet, obesity, and family history. Angina pectoris is caused by myocardial ischemia in the main expression of pain in the chest or adjoining area, which is usually a result of exertion and related to myocardial function disorder. Typical angina pectoris would last for minutes with gradual exacerbation. Rest, sit, or stop walking are the usual preference for patients with angina, and reaching the maximum intensity in seconds is uncommon. Rest or nitroglycerin usage can relieve typical angina pectoris within minutes. So far, a widely accepted angina pectoris severity grading system included CCS (Canadian Cardiovascular Society) classification, Califf score, and Goldman scale. Patients with ST-segment elevated myocardial infarction (STEMI) may have different symptoms and signs of both severe angina pectoris and various complications. The combination of rising usage of sensitive MI biomarkers and precise imaging techniques, including electrocardiograph (ECG), computed tomography, and cardiac magnetic resonance imaging, made the new MI criteria necessary. Complications of acute myocardial infarction include left ventricular dysfunction, cardiogenic shock, structural complications, arrhythmia, recurrent chest discomfort, recurrent ischemia and infarction, pericardial effusion, pericarditis, post-myocardial infarction syndrome, venous thrombosis pulmonary embolism, left ventricular aneurysm, left ventricular thrombus, and arterial embolism.
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22
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Liu Y, Veach RA, Zienkiewicz J, Boyd KL, Smith TE, Xu ZQ, Wylezinski LS, Hawiger J. Protection from Endotoxin Shock by Selective Targeting of Proinflammatory Signaling to the Nucleus Mediated by Importin Alpha 5. Immunohorizons 2019; 3:440-446. [PMID: 31533951 PMCID: PMC6768080 DOI: 10.4049/immunohorizons.1900064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 08/22/2019] [Indexed: 12/14/2022] Open
Abstract
Endotoxin shock is induced by LPS, one of the most potent virulence factors of the Gram-negative bacteria that cause sepsis. It remains unknown if either proinflammatory stress-responsive transcription factors (SRTFs), ferried to nucleus by importin α5, or lipid-regulating sterol regulatory element binding proteins (SREBPs), transported to the nucleus by importin β1, mediate endotoxin shock. A novel cell-penetrating peptide targeting importin α5 while sparing importin β1 protected 80% of animals from death in response to a high dose of LPS. This peptide suppresses inflammatory mediators, liver glycogen depletion, endothelial injury, neutrophil trafficking, and apoptosis caused by LPS. In d-galactosamine-pretreated mice challenged by 700-times lower dose of LPS, rapid death through massive apoptosis and hemorrhagic necrosis of the liver was also averted by the importin α5–selective peptide. Thus, using a new tool for selective suppression of nuclear transport, we demonstrate that SRTFs, rather than SREBPs, mediate endotoxin shock.
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Affiliation(s)
- Yan Liu
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232.,Department of Veterans Affairs, Tennessee Valley Health Care System, Nashville, TN 37212
| | - Ruth Ann Veach
- Department of Veterans Affairs, Tennessee Valley Health Care System, Nashville, TN 37212.,Division of Nephrology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232
| | - Jozef Zienkiewicz
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232; .,Department of Veterans Affairs, Tennessee Valley Health Care System, Nashville, TN 37212
| | - Kelli L Boyd
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN 37232; and
| | - Taylor E Smith
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232.,Department of Veterans Affairs, Tennessee Valley Health Care System, Nashville, TN 37212
| | - Zhi-Qi Xu
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232
| | - Lukasz S Wylezinski
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232
| | - Jacek Hawiger
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232; .,Department of Veterans Affairs, Tennessee Valley Health Care System, Nashville, TN 37212.,Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN 37232
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23
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Hawiger J, Zienkiewicz J. Decoding inflammation, its causes, genomic responses, and emerging countermeasures. Scand J Immunol 2019; 90:e12812. [PMID: 31378956 PMCID: PMC6883124 DOI: 10.1111/sji.12812] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/03/2019] [Accepted: 07/29/2019] [Indexed: 12/11/2022]
Abstract
Inflammation is the mechanism of diseases caused by microbial, autoimmune, allergic, metabolic and physical insults that produce distinct types of inflammatory responses. This aetiologic view of inflammation informs its classification based on a cause‐dependent mechanism as well as a cause‐directed therapy and prevention. The genomic era ushered in a new understanding of inflammation by highlighting the cell's nucleus as the centre of the inflammatory response. Exogenous or endogenous inflammatory insults evoke genomic responses in immune and non‐immune cells. These genomic responses depend on transcription factors, which switch on and off a myriad of inflammatory genes through their regulatory networks. We discuss the transcriptional paradigm of inflammation based on denying transcription factors’ access to the nucleus. We present two approaches that control proinflammatory signalling to the nucleus. The first approach constitutes a novel intracellular protein therapy with bioengineered physiologic suppressors of cytokine signalling. The second approach entails control of proinflammatory transcriptional cascades by targeting nuclear transport with a cell‐penetrating peptide that inhibits the expression of 23 out of the 26 mediators of inflammation along with the nine genes required for metabolic responses. We compare these emerging anti‐inflammatory countermeasures to current therapies. The transcriptional paradigm of inflammation offers nucleocentric strategies for microbial, autoimmune, metabolic, physical and other types of inflammation afflicting millions of people worldwide.
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Affiliation(s)
- Jacek Hawiger
- Immunotherapy Program at Vanderbilt University School of Medicine, Nashville, TN, USA.,Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Veterans Affairs, Tennessee Valley Health Care System, Nashville, TN, USA.,Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Jozef Zienkiewicz
- Immunotherapy Program at Vanderbilt University School of Medicine, Nashville, TN, USA.,Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA.,Department of Veterans Affairs, Tennessee Valley Health Care System, Nashville, TN, USA
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Li Z, Liu XM, Li AY, Du XX, Wang XB, Liu JX, Wang ZG, Zhang QQ, Yu HY. Teleost Type 2 Interleukin-1 Receptor (IL-1R2) from the Spotted Halibut (Verasper variegatus): 3D Structure and a Role in Immune Response. Mol Biol 2019. [DOI: 10.1134/s0026893319020109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Fereig RM, Abdelbaky HH, Kuroda Y, Nishikawa Y. Critical role of TLR2 in triggering protective immunity with cyclophilin entrapped in oligomannose-coated liposomes against Neospora caninum infection in mice. Vaccine 2019; 37:937-944. [PMID: 30660401 DOI: 10.1016/j.vaccine.2019.01.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/25/2018] [Accepted: 01/03/2019] [Indexed: 10/27/2022]
Abstract
Neospora caninum is an intracellular protozoan parasite closely related to Toxoplasma gondii. N. caninum is thought to be a major cause of abortion in cattle worldwide. Given the current situation of drastic economic losses and a lack of efficient control strategies against such parasites, the challenge to develop potent vaccine candidates and technologies remains. We investigated the immune stimulating activity of N. caninum cyclophilin (NcCyp) with and without a formulation with oligomannose-coated-liposomes (OML) as the potential adjuvant. NcCyp-OML activated NF-κB in RAW 264.7 cells and triggered interleukin (IL)-12p40 production from murine peritoneal macrophages. In BALB/c mice, immunization with NcCyp-OML was associated with the production of specific antibodies (IgG1 and IgG2a). The specific antibody (IgG1) against naked NcCyp was also observed after the challenge infection, but it was significantly lower than those of NcCyp-OML. Moreover, significant cellular immune responses were induced, including spleen cell proliferation and interferon-gamma production. The immunization of mice with NcCyp-OML, and to lesser extent with naked NcCyp, induced significant protection against challenge with a lethal dose of N. caninum compared with the PBS control group. This protection was associated with a higher survival rate, slight changes in body weight, and lower clinical score of mice. In addition, the significant protective efficacy of NcCyp-OML was confirmed in another mouse strain, male C57BL/6 mice. The current study revealed the marked contribution of Toll-like receptor 2 (TLR2) to the protective immunity triggered by NcCyp-OML because higher numbers of TLR2-/- mice succumbed to a lethal dose of N. caninum compared with C57BL/6 mice. Moreover, prominent spleen cell proliferation and IFN-γ production was induced in NcCyp-OML-immunized mice by a TLR2-dependent mechanism.
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Affiliation(s)
- Ragab M Fereig
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan; Department of Animal Medicine, Faculty of Veterinary Medicine, South Valley University, Qena City, Qena 83523, Egypt
| | - Hanan H Abdelbaky
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
| | - Yasuhiro Kuroda
- Department of Applied Biochemistry, Tokai University, Kita-kaname, Hiratsuka, Kanagawa 259-1292, Japan.
| | - Yoshifumi Nishikawa
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan.
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26
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Sang W, Zhong Z, Linghu K, Xiong W, Tse AKW, Cheang WS, Yu H, Wang Y. Siegesbeckia pubescens Makino inhibits Pam 3CSK 4-induced inflammation in RAW 264.7 macrophages through suppressing TLR1/TLR2-mediated NF-κB activation. Chin Med 2018; 13:37. [PMID: 30002726 PMCID: PMC6034227 DOI: 10.1186/s13020-018-0193-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 06/23/2018] [Indexed: 12/13/2022] Open
Abstract
Background Siegesbeckia pubescens Makino (SP) is one of the important plant origins for the anti-inflammatory Chinese herbal medicine of Siegesbeckiae Herba. The current investigations indicated that the anti-inflammatory effects of SP were associated with the toll-like receptors (TLRs)-mediated nuclear factor-κB (NF-κB) and the mitogen-activated protein kinase (MAPK) signaling pathways. Methods Raw 264.7 macrophages were pretreated with the 50% ethanol extract of SP (SPE, 50–200 µg/mL) and then co-treated with Pam3CSK4 (200 ng/mL) for another 12 h. The inhibitory effect of SPE on Pam3CSK4-stimulated NO release and post-inflammatory cytokines secretions were determined using Griess reagent and Elisa kits, respectively. The influence of SPE on NF-κB and MAPKs signaling relevant proteins was measured by Western blotting analysis, while the intracellular nitric oxide (NO) generation and NF-κB/p65 nuclear translocation were determined using Leica TCS SP8 laser scanning confocal microscope. Moreover, the effect of SPE on luciferase reporter gene in NF-κB-luc DNA transfected raw 264.7 cells was determined using the Dual-Glo luciferase assay system kit. Results SPE dose-dependently (50–200 µg/mL) attenuated Pam3CSK4-induced NO release, post-inflammatory cytokines (IL-6, TNF-α and MCP-1) secretions and intracellular NO generation in raw 264.7 cells. Biologically, SPE suppressed Pam3CSK4-induced expressions of cyclooxygenase-2 (COX-2), inducible nitric oxide synthase (iNOS), phosphorylation of NF-κB/p65 and IκBα, but did not significantly show effect on the proteins involved in MAPKs signaling (p38, ERK and JNK). The results were further confirmed by NF-κB-luc reporter gene assay and p65 nuclear translocation assay. Conclusions In conclusion, SPE ameliorated Pam3CSK4-induced inflammation in raw 264.7 cells through suppressing TLR 1/2-mediated NF-κB activation. Electronic supplementary material The online version of this article (10.1186/s13020-018-0193-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wei Sang
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Zhangfeng Zhong
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China.,4Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, China
| | - Kegang Linghu
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Wei Xiong
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Anfernee Kai Wing Tse
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, Guangdong China
| | - Wai San Cheang
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Hua Yu
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China.,HKBU Shenzhen Research Center, Shenzhen, Guangdong China.,School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong China.,Institute of Chinese Medical Sciences, University of Macau, Room 8008, Building N22, Avenida da Universidade, Taipa, Macao SAR China
| | - Yitao Wang
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China.,Institute of Chinese Medical Sciences, University of Macau, Room 1050, Building N22, Avenida da Universidade, Taipa, Macao SAR China
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Sunil MA, Sunitha VS, Ashitha A, Neethu S, Midhun SJ, Radhakrishnan EK, Jyothis M. Catechin rich butanol fraction extracted from Acacia catechu L. (a thirst quencher) exhibits immunostimulatory potential. J Food Drug Anal 2018; 27:195-207. [PMID: 30648572 PMCID: PMC9298633 DOI: 10.1016/j.jfda.2018.06.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 06/01/2018] [Accepted: 06/11/2018] [Indexed: 01/15/2023] Open
Abstract
Acacia catechu L., (Fabaceae) named as “catechu” is a plant, the decoction of heartwood of which is daily consumed as thirst quencher by a good percentage of the population in South India. The plant is mainly distributed in India and other Asian countries. It has been used in Indian traditional medicine for the treatment of asthma, bronchitis, colic, diarrhea, boils, skin afflictions, sores and stomatitis. The present investigation was aimed to study the immunomodulatory effects of different fractions of ethanol extract of A. catechu heartwood and HPLC analysis of the active fraction. Three fractions namely, butanol, chloroform and ethyl acetate were prepared from ethanol extract of A. catechu heartwood. Each of these fractions was assessed for its immunomodulatory activity. In vivo immunomodulatory activity was analyzed by sheep red blood cells (SRBC) specific hemagglutinating antibody titer, plaque-forming cell assay and delayed type hypersensitivity (DTH) reaction in Swiss albino mice. In vitro immunomodulating potential of the fractions was studied using murine peritoneal macrophages and splenocytes. Non-specific immune functions such as phagocytosis (nitroblue tetrazolium reduction assay and cellular lysosomal enzyme assay), nitric oxide (NO) production and cytokine release (TNF-α and IL-10) were studied in macrophages. In addition, splenocyte proliferation was also studied. In the in vivo experiments, butanol and chloroform fractions showed an increase in antibody titer dose-dependently. At higher dose (400 mg/kg b. w.) treatment the butanol fraction produced an enhancement in the number of plaque-forming cells (antibody producing cells) in the spleen. SRBC induced DTH reaction was significantly increased with butanol fraction in a dose-dependent manner. Peritoneal macrophages showed an increased phagocytic response on treatment with butanol fraction (100 μg/mL) as evidenced by its effect on nitroblue tetrazolium reduction and cellular lysosomal enzyme activity. All three fractions inhibited the production of NO and the release of TNF-α. Interleukin-10 production was significantly increased after treatment with butanol fraction. High-performance liquid chromatography analysis of the butanol fraction showed the presence of high concentration of catechin. The results suggested that butanol fraction of ethanol extract of A. catechu heartwood had immunomodulatory effects on non-specific, humoral, and cell-mediated immune functions. This study may be useful in validating the rationality of daily consumption of decoction of A. catechu and also its use in traditional medicine system. The study also suggests the possible use of A. catechu in the immunostimulatory herbal preparations.
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Affiliation(s)
- M A Sunil
- School of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India
| | - V S Sunitha
- School of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India
| | - A Ashitha
- School of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India
| | - Sahadevan Neethu
- School of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India
| | - Sebastian J Midhun
- School of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India
| | - E K Radhakrishnan
- School of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India
| | - Mathew Jyothis
- School of Biosciences, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, 686560, Kerala, India.
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Jang SE, Jeong JJ, Kim JK, Han MJ, Kim DH. Simultaneous Amelioratation of Colitis and Liver Injury in Mice by Bifidobacterium longum LC67 and Lactobacillus plantarum LC27. Sci Rep 2018; 8:7500. [PMID: 29760423 PMCID: PMC5951891 DOI: 10.1038/s41598-018-25775-0] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 04/27/2018] [Indexed: 02/07/2023] Open
Abstract
Disturbances in the gut microbiota composition are associated with chronic inflammatory diseases of the intestine and the liver. In a preliminary study, Lactobacillus plantarum LC27 and Bifidobacterium longum LC67 could inhibit Escherichia coli growth and lipopolysaccharide-induced NF-κB activation linked to gut inflammation. Here, we investigated their effects on 2,4,6-trinitrobenzesulfonic acid (TNBS)-induced colitis and liver damage in mice. First, oral administration of LC27 or LC67 (1 × 109 CFU/mouse) inhibited TNBS-induced colon shortening [F(5,30) = 100.66, P < 0.05] and myeloperoxidase activity [F(5,30) = 56.48, P < 0.05]. These probiotics restored TNBS-induced disturbance of gut microbiota, leading to the suppression of Proteobacteria to Bacteroidetes ratio and fecal and blood lipopolysaccharide levels. Second, LC27 and LC67 inhibited TNBS-induced NF-κB activation, reversed TNBS-suppressed tight junction protein expression, and restored Th17/Treg balance. Also, treatment with LC27 or LC67 significantly decreased TNBS-induced alanine transaminase [ALT, F(5,30) = 3.50, P < 0.05] and aspartate transaminase [AST, F(5,30) = 12.81, P < 0.05] levels in the blood, as well as t-butylhydroperoxide-induced ALT and AST levels. Finally, the mixture of LC27 and LC67 (0.5 × 109 CFU/mouse, respectively) synergistically attenuated TNBS- or t-butylhydroperoxide-induced colitis and liver damage. The capability of LC27 and LC67 to reverse TNBS-mediated microbiota shift and damage signals suggests that these probiotics may synergistically attenuate colitis and liver injury by alleviating gut microbiota imbalance.
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Affiliation(s)
- Se-Eun Jang
- Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Seoul, 130-701, Korea.,Department of Food and Nutrition, Kyung Hee University, Seoul, 02447, Korea
| | - Jin-Ju Jeong
- Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Seoul, 130-701, Korea
| | - Jeon-Kyung Kim
- Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Seoul, 130-701, Korea
| | - Myung Joo Han
- Department of Food and Nutrition, Kyung Hee University, Seoul, 02447, Korea
| | - Dong-Hyun Kim
- Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Seoul, 130-701, Korea.
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Ning P, Zheng Z, Aweya JJ, Yao D, Li S, Ma H, Wang F, Zhang Y. Litopenaeus vannamei notch affects lipopolysaccharides induced reactive oxygen species. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2018; 81:74-82. [PMID: 29155012 DOI: 10.1016/j.dci.2017.11.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 11/14/2017] [Accepted: 11/14/2017] [Indexed: 06/07/2023]
Abstract
Notch signaling pathway was originally discovered in the development stage of drosophila but has recently been found to play essential roles in innate immunity. Most previous studies on Notch have focused on mammals, whereas, in this study, we employed the shrimp Litopenaeus vannamei as a model to study the functions of Notch in invertebrate innate immune system. Our results showed that LvNotch was highly expressed in hemocytes and could be strongly induced by lipopolysaccharides (LPS) injection. Small interfering RNA (siRNA)-mediated knockdown of LvNotch could significantly increase LPS induced L. vannamei mortality, which might be due to the fact that LPS induced ROS was greatly enhanced in LvNotch knockdown shrimps. Further, quantitative polymerase chain reaction (qPCR) analysis revealed that LvNotch could affect the expression of multiple genes, including dorsal, relish, anti-lipopolysaccharide factor 1 (ALF1), ALF3 and NADH dehydrogenases which were upregulated, and Hypoxia-inducible factor (HIF, α/β) which were downregulated in LPS treated shrimps. In summary, LvNotch is important in the control of inflammation-induced ROS production in shrimp.
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Affiliation(s)
- Pei Ning
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Zhihong Zheng
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Jude Juventus Aweya
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Defu Yao
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Shengkang Li
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Hongyu Ma
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Fan Wang
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
| | - Yueling Zhang
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
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Leptospira interrogans infection leads to IL-1β and IL-18 secretion from a human macrophage cell line through reactive oxygen species and cathepsin B mediated-NLRP3 inflammasome activation. Microbes Infect 2018; 20:254-260. [PMID: 29432801 DOI: 10.1016/j.micinf.2018.01.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 12/29/2017] [Accepted: 01/26/2018] [Indexed: 12/17/2022]
Abstract
Leptospirosis is a worldwide zoonosis caused by spirochetes from the genus Leptospira. Although there is a large diversity of clinical signs and symptoms, a severe inflammatory response is common to all leptospirosis patients. The mechanism of IL-1β secretion during Leptospira infection has been previously studied in mouse macrophages. However, the outcome of Leptospira infection is very different in human and murine macrophages, and the mechanisms responsible for IL-1β secretion in human macrophages had not been investigated. This study therefore examines the effects of Leptospira interrogans infection on inflammasome activation and proinflammatory cytokine expression in human macrophages. Increased mRNA and protein expression of NLRP3 was observed by real time RT-PCR and flow cytometry at 1 h after co-cultivation. Enzyme-linked immunosorbent assay (ELISA) determination showed that IL-1β and IL-18 are released in the culture supernatants at 1 h after cultivation. The inhibition assay showed that glybenclamide (a K+ efflux inhibitor that blocks NLRP3 inflammasome activation) and N-benzyloxycarbony-Val-Ala-Asp (O-methyl)-fluoromethylketone (Z-VAD-FMK; a caspase-1 inhibitor) and NLRP3 depletion with siRNAs reduced the levels of IL-1β and IL-18 release. Moreover, the levels of IL-1β and IL-18 production decreased in CA-074 (a cathepsin B inhibitor) and NAC (an anti-oxidant) pretreated human macrophages, compared to untreated controls. This study suggests that L. interrogans infection leads to reactive oxygen species (ROS)- and cathepsin B-dependent NLRP3 inflammasome activation, which subsequently mediates caspase-1 activation and IL-1β and IL-18 release.
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31
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Transcriptome analysis of inflammation-related gene expression in endothelial cells activated by complement MASP-1. Sci Rep 2017; 7:10462. [PMID: 28874747 PMCID: PMC5585174 DOI: 10.1038/s41598-017-09058-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 07/19/2017] [Indexed: 01/15/2023] Open
Abstract
Mannan-binding lectin-associated serine protease 1 (MASP-1), the most abundant enzyme of the complement lectin pathway, is able to stimulate human umbilical vein endothelial cells (HUVECs) to alter the expression of several cytokines and adhesion molecules. This study has assessed to what extent MASP-1 is able to modify the transcriptional pattern of inflammation-related (IR) genes in HUVECs. We utilized Agilent microarray to analyse the effects of recombinant MASP-1 (rMASP-1) in HUVECs, on a set of 884 IR genes. Gene Set Enrichment Analysis showed an overall activation of inflammation-related genes in response to rMASP-1. rMASP-1 treatment up- and down-regulated 19 and 11 IR genes, respectively. Most of them were previously unidentified, such as genes of chemokines (CXCL1, CXCL2, CXCL3), inflammatory receptors (TLR2, BDKRB2) and other inflammatory factors (F3, LBP). Expression of IR genes changed early, during the first 2 hours of activation. Both p38-MAPK inhibitor and NFκB inhibitor efficiently suppressed the effect of rMASP-1. We delineated 12 transcriptional factors as possible regulators of rMASP-1-induced IR genes. Our microarray-based data are in line with the hypothesis that complement lectin pathway activation, generating active MASP-1, directly regulates inflammatory processes by shifting the phenotype of endothelial cells towards a more pro-inflammatory type.
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Lv Z, Wei Z, Zhang Z, Li C, Shao Y, Zhang W, Zhao X, Li Y, Duan X, Xiong J. Characterization of NLRP3-like gene from Apostichopus japonicus provides new evidence on inflammation response in invertebrates. FISH & SHELLFISH IMMUNOLOGY 2017; 68:114-123. [PMID: 28705721 DOI: 10.1016/j.fsi.2017.07.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 07/07/2017] [Accepted: 07/08/2017] [Indexed: 06/07/2023]
Abstract
Inflammatory/defensive response after pathogen invasion is considered a local defense reaction in vertebrates. Inflammation response in Apostichopus japonicus was hardly determined due to scarce information available for nucleotide binding domain-like receptor family, pyrin domain-containing (NLRP) family. In the present study, invertebrate NLRP homologue was identified from A. japonicus (designated as AjNLRP3-like) by rapid amplification of cDNA ends. Full-length cDNA of AjNLRP3-like measured 2970 bp with 2265 bp open reading frame encoding a 754-amino acid (aa) residue protein. Structural analysis revealed that AjNLRP3-like processed characteristic domains of pyrin (32-102aa) and NACHT (183-339aa). Multiple sequence alignment and phylogenetic analysis supported that AjNLRP3-like belongs to a new member of NLRP3 protein subfamily. Spatial expression analysis revealed that AjNLRP3-like was ubiquitously expressed in all examined tissues with larger magnitude in coelomocytes. Both Vibrio splendidus challenge in vivo and lipopolysaccharide stimulation in vitro significantly upregulated mRNA expression of AjNLRP3-like when compared with the control group. NLRP3-mediated inflammation response depended on release of lysosomal cathepsin B (CTSB) and subsequent activation of high-mobility group box (HMGB) in vertebrates. We investigated expression profiles of AjNLRP3-like and AjHMGB after AjCTSB knock-down and discovered that AjNLRP3-like was depressed by 0.66-fold and 0.47-fold, whereas AjHMGB was depressed by 0.70-fold and 0.50-fold at 24 and 48 h in AjCTSB-silenced group, respectively. Similarly, down-regulation of AjHMGB was also observed after AjNLRP3-like knock-down. This study therefore suggests that A. japonicus feature similar inflammatory events as those in vertebrates, and activation of AjNLRP3-like depends on AjCTSB expression and release of AjHMGB.
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Affiliation(s)
- Zhimeng Lv
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Zhixin Wei
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Zhen Zhang
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China.
| | - Yina Shao
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Weiwei Zhang
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Xuelin Zhao
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Ye Li
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Xuemei Duan
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Jinbo Xiong
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
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Nagai K, Ueno Y, Tanaka S, Hayashi R, Shinagawa K, Chayama K. Polysaccharides derived from Ganoderma lucidum fungus mycelia ameliorate indomethacin-induced small intestinal injury via induction of GM-CSF from macrophages. Cell Immunol 2017; 320:20-28. [PMID: 28942945 DOI: 10.1016/j.cellimm.2017.08.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 06/26/2017] [Accepted: 08/03/2017] [Indexed: 12/22/2022]
Abstract
Non-steroidal anti-inflammatory drugs often cause ulcers in the human small intestine, but few effective agents exist to treat such injury. Ganoderma lucidum Karst, also known as "Reishi" or "Lingzhi", is a mushroom. We previously reported that a water-soluble extract from G. lucidum fungus mycelia (MAK) has anti-inflammatory effects in murine colitis induced by trinitrobenzene sulfonic acid, and induction of granulocyte macrophage colony-stimulating factor (GM-CSF) by MAK may provide anti-inflammatory effects. However, its effects on indomethacin-induced small intestinal injuries are unknown. The present study investigated the preventative effects of MAK via immunological function and the polysaccharides from MAK on indomethacin-induced ileitis in mice. Peritoneal macrophages (PMs) were stimulated in vitro with MAK and adoptively transferred to C57BL/6 mice intraperitoneally, which were then given indomethacin. Intestinal inflammation was evaluated after 24h. We performed in vivo antibody blockade to investigate the preventive role of GM-CSF, which derived from PMs stimulated with MAK. We then used PMs stimulated with MAK pre-treated by pectinase in an adoptive transfer assay to determine the preventive role of polysaccharides. Indomethacin-induced small intestinal injury was inhibited by adoptive transfer of PMs stimulated in vitro with MAK. In this transfer model, pre-treatment with anti-GM-CSF antibody but not with control antibody reversed the improvement of small intestinal inflammation by indomethacin. Pectinase pretreatment impaired the anti-inflammatory effect of MAK. PMs stimulated by MAK appear to contribute to the anti-inflammatory response through GM-CSF in small intestinal injury induced by indomethacin. The polysaccharides may be the components that elicit the anti-inflammatory effect.
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Affiliation(s)
- Kenta Nagai
- Department of Medicine and Molecular Science, Hiroshima University, Japan
| | | | - Shinji Tanaka
- Department of Endoscopy, Hiroshima University, Japan
| | | | - Kei Shinagawa
- Department of Medicine and Molecular Science, Hiroshima University, Japan
| | - Kazuaki Chayama
- Department of Medicine and Molecular Science, Hiroshima University, Japan
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Veach RA, Liu Y, Zienkiewicz J, Wylezinski LS, Boyd KL, Wynn JL, Hawiger J. Survival, bacterial clearance and thrombocytopenia are improved in polymicrobial sepsis by targeting nuclear transport shuttles. PLoS One 2017; 12:e0179468. [PMID: 28628637 PMCID: PMC5476269 DOI: 10.1371/journal.pone.0179468] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 05/31/2017] [Indexed: 12/29/2022] Open
Abstract
The rising tide of sepsis, a leading cause of death in the US and globally, is not adequately controlled by current antimicrobial therapies and supportive measures, thereby requiring new adjunctive treatments. Severe microvascular injury and multiple organ failure in sepsis are attributed to a "genomic storm" resulting from changes in microbial and host genomes encoding virulence factors and endogenous inflammatory mediators, respectively. This storm is mediated by stress-responsive transcription factors that are ferried to the nucleus by nuclear transport shuttles importins/karyopherins. We studied the impact of simultaneously targeting two of these shuttles, importin alpha 5 (Imp α5) and importin beta 1 (Imp β1), with a cell-penetrating Nuclear Transport Modifier (NTM) in a mouse model of polymicrobial sepsis. NTM reduced nuclear import of stress-responsive transcription factors nuclear factor kappa B, signal transducer and activator of transcription 1 alpha, and activator protein 1 in liver, which was also protected from sepsis-associated metabolic changes. Strikingly, NTM without antimicrobial therapy improved bacterial clearance in blood, spleen, and lungs, wherein a 700-fold reduction in bacterial burden was achieved while production of proinflammatory cytokines and chemokines in blood plasma was suppressed. Furthermore, NTM significantly improved thrombocytopenia, a prominent sign of microvascular injury in sepsis, inhibited neutrophil infiltration in the liver, decreased L-selectin, and normalized plasma levels of E-selectin and P-selectin, indicating reduced microvascular injury. Importantly, NTM combined with antimicrobial therapy extended the median time to death from 42 to 83 hours and increased survival from 30% to 55% (p = 0.022) as compared to antimicrobial therapy alone. This study documents the fundamental role of nuclear signaling mediated by Imp α5 and Imp β1 in the mechanism of polymicrobial sepsis and highlights the potential for targeting nuclear transport as an adjunctive therapy in sepsis management.
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Affiliation(s)
- Ruth Ann Veach
- Immunotherapy Program at Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Yan Liu
- Immunotherapy Program at Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Jozef Zienkiewicz
- Immunotherapy Program at Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Veterans Affairs, Tennessee Valley Health Care System, Nashville, Tennessee, United States of America
| | - Lukasz S. Wylezinski
- Immunotherapy Program at Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - Kelli L. Boyd
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
| | - James L. Wynn
- Department of Pediatrics, University of Florida, Gainesville, Florida, United States of America
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, Florida, United States of America
| | - Jacek Hawiger
- Immunotherapy Program at Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
- Department of Veterans Affairs, Tennessee Valley Health Care System, Nashville, Tennessee, United States of America
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America
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Chen J, Bao C, Cho SH, Lee HJ. Green lipped mussel oil complex suppresses lipopolysaccharide stimulated inflammation via regulating nuclear factor-κB and mitogen activated protein kinases signaling in RAW264.7 murine macrophages. Food Sci Biotechnol 2017; 26:815-822. [PMID: 30263608 DOI: 10.1007/s10068-017-0091-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 03/06/2017] [Accepted: 03/06/2017] [Indexed: 01/29/2023] Open
Abstract
Here we investigated the effect of green lipped mussel oil complex (GLMOC) on inflammation and underlying mechanism in lipopolysaccharide stimulated RAW264.7 murine macrophage cells. GLMOC containing green lipped mussel oil (GLMO), olive oil, and vitamin E (10:20:1) can induce significant suppression of iNOS, leading to reduced nitric oxide synthesis, and cyclooxygenase-2, leading to reduced prostaglandin E2 synthesis. In addition, it down-regulated the release of pro-inflammatory cytokines, including tumor necrosis factor-α, interleukin (IL)-6, and IL-1β. Similar to upstream signaling mediators, GLMCO inhibited the degradation of inhibitory κB, nuclear translocation of NF-κB, and phosphorylation of mitogen activated protein kinases (MAPKs) in a dose-dependent manner. Among the components of GLMOC, GLMO was responsible for anti-inflammatory efficacy. Taken together, GLMOC induces anti-inflammatory activity via regulating NF-κB and MAPK signaling in lipopolysaccharide-induced RAW264.7 cells, providing underlying mechanisms that elucidate the anti-inflammatory efficacy of GLMOC.
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Affiliation(s)
- Jing Chen
- 1Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi 17546 Korea
| | - Cheng Bao
- 1Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi 17546 Korea
| | | | - Hong Jin Lee
- 1Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi 17546 Korea
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Lim SM, Jang H, Jang SE, Han M, Kim DH. Lactobacillus fermentum IM12 attenuates inflammation in mice by inhibiting NF-κB-STAT3 signalling pathway. Benef Microbes 2017; 8:407-419. [DOI: 10.3920/bm2016.0156] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
In the present study, we isolated Lactobacillus fermentum IM12 from human gut microbiota, which strongly inhibited interleukin (IL)-6 expression and STAT3 activation in lipopolysaccharide (LPS)-stimulated murine peritoneal macrophages, and examined its anti-inflammatory effect in mice with carrageenan-induced hind-paw oedema (CIE) or 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis (TIC). Oral administration of IM12 (0.2×109, 1×109 or 5×109 cfu/mouse, once a day for 3 days) in mice with CIE significantly suppressed the increase of oedema volume and thickness, as well as myeloperoxidase activity and IL-6, IL-17, NO, and prostaglandin E2 levels in the carrageenan-stimulated paw. Treatment with IM12 (1×109 cfu/mouse, once a day for 3 days) in mice with TIC significantly suppressed colon shortening, and myeloperoxidase activity and IL-6 and IL-17 levels. Treatment with IM12 in mice with CIE or TIC also suppressed the expression of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2, as well as activation of nuclear factor kappa beta (NF-κB) and signal transducer and activator of transcription 3 (STAT3). Furthermore, IM12 significantly inhibited the expression of iNOS, and COX-2, as well as activation of NF-κB in LPS-stimulated mouse peritoneal macrophages. The inflammatory effect of heat-inactivated IM12 was significantly different to that of live IM12 in mice with TIC, although anti-inflammatory effect of IM12 was reduced by heat treatment. Based on these findings, IM12 may attenuate inflammation by inhibiting NF-κB-STAT3 signalling pathway.
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Affiliation(s)
- S.-M. Lim
- Department of Life and Nanopharmaceutical Sciences and Department of Pharmacy, Kyung Hee University, 26, Kyungheedaero, Dongdaemun-gu, Seoul 02447, Korea
| | - H.M. Jang
- Department of Life and Nanopharmaceutical Sciences and Department of Pharmacy, Kyung Hee University, 26, Kyungheedaero, Dongdaemun-gu, Seoul 02447, Korea
| | - S.-E. Jang
- Department of Life and Nanopharmaceutical Sciences and Department of Pharmacy, Kyung Hee University, 26, Kyungheedaero, Dongdaemun-gu, Seoul 02447, Korea
- Department of Food and Nutrition, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
| | - M.J. Han
- Department of Food and Nutrition, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
| | - D.-H. Kim
- Department of Life and Nanopharmaceutical Sciences and Department of Pharmacy, Kyung Hee University, 26, Kyungheedaero, Dongdaemun-gu, Seoul 02447, Korea
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Effects of porcine MyD88 knockdown on the expression of TLR4 pathway-related genes and proinflammatory cytokines. Biosci Rep 2016; 36:BSR20160170. [PMID: 27707937 PMCID: PMC5293583 DOI: 10.1042/bsr20160170] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 09/14/2016] [Accepted: 09/30/2016] [Indexed: 12/21/2022] Open
Abstract
As a critical adapter protein in Toll-like receptor (TLR)/Interleukin (IL)-1R signalling pathway, myeloid differentiation protein 88 (MyD88) plays an important role in immune responses and host defence against pathogens. The present study was designed to provide a foundation and an important reagent for the mechanistic study of MyD88 and its role TLR/IL-1R signalling pathways in porcine immunity. Lentivirus-mediated RNAi was used to generate a porcine PK15 cell line with a silenced MyD88 gene and quantitative real-time PCR (qPCR) and Western blotting were used to detect changes in the expression of critical genes in the Toll-like receptor 4 (TLR4) signalling pathway. ELISA was used to measure the levels of seven proinflammatory cytokines–interleukin-1β (IL-1β), tumour necrosis factor-α (TNF-α), IL-6, IL-8, IL-12, macrophage inflammatory protein (MIP)-1α and MIP-1β–in cell culture supernatants after MyD88 silencing. We successfully obtained a PK15 cell line with 61% MyD88 mRNA transcript down-regulated. In PK15 cells with MyD88 silencing, the transcript levels of TLR4 and IL-1β were significantly reduced, whereas there were no significant changes in the expression levels of cluster of differentiation antigen 14 (CD14), interferon-α (IFN-α) or TNF-α. The ELISA results showed that the levels of most cytokines were not significantly changed apart from IL-8 without stimulation, which was significantly up-regulated. When cells were induced by lipopolysaccharide (LPS) (0.1 μg/ml) for 6 h, the global level of seven proinflammatory cytokines up-regulated and the level of IL-1β, TNF-α, IL-6, IL-8 and IL-12 of Blank and negative control (NC) group up-regulated more significantly than RNAi group (P<0.05), which revealed that the MyD88 silencing could reduce the TLR4 signal transduction which inhibited the release of proinflammatory cytokines and finally leaded to immunosuppression.
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Activation of the niacin receptor HCA2 reduces demyelination and neurofilament loss, and promotes functional recovery after spinal cord injury in mice. Eur J Pharmacol 2016; 791:124-136. [DOI: 10.1016/j.ejphar.2016.08.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 08/23/2016] [Accepted: 08/24/2016] [Indexed: 11/17/2022]
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Kaaru E, Bianchi A, Wunder A, Rasche V, Stiller D. Molecular Imaging in Preclinical Models of IBD with Nuclear Imaging Techniques: State-of-the-Art and Perspectives. Inflamm Bowel Dis 2016; 22:2491-8. [PMID: 27580387 DOI: 10.1097/mib.0000000000000904] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, is characterized by chronic unregulated inflammation of the intestinal mucosa of the gastrointestinal tract. To date, this pathology has no cure. Colonoscopy and biopsies are the current gold standard diagnostic tools. However, being a chronic disease, IBD requires continuous follow-up to check for disease progress, treatment response, and remission. Unfortunately, these 2 diagnostic procedures are invasive and generally unable to show the cellular and molecular changes that take place in vivo. In this context, it is clear that there is a strong need for optimized noninvasive imaging techniques able to overcome the aforementioned limitations. This review aims to bring to light the scientific advancements that have been achieved so far in nuclear medicine in relation to tracking of immune cells involved in the preclinical models of IBD. In particular, this review will explore the advantages and limitations of the radiopharmaceuticals that aim to track whole cells like neutrophils, those that involve the radiolabeling of immune cell substrates or available human IBD medical therapies, and those that aim to track cell signaling molecules (e.g., cytokines and cell adhesion molecules). After a detailed critical summary of the state-of-the art, the challenges and perspectives of molecular imaging applied to IBD studies will be analyzed. Special attention will be paid to the translational potential of the described techniques and on the potential impact of these innovative approaches on the drug discovery pipelines and their contribution to the evolution of personalized medicine.
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Affiliation(s)
- Eric Kaaru
- *Target Discovery Research Department, In-Vivo Imaging Laboratory, Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss, Germany; †Translational Medicine and Clinical Pharmacology, Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss, Germany; ‡Core Facility Small Animal Imaging, Ulm University, Ulm, Germany; and §Internal Medicine II, University Hospital Ulm, Ulm, Germany
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Aran D, Lasry A, Zinger A, Biton M, Pikarsky E, Hellman A, Butte AJ, Ben-Neriah Y. Widespread parainflammation in human cancer. Genome Biol 2016; 17:145. [PMID: 27386949 PMCID: PMC4937599 DOI: 10.1186/s13059-016-0995-z] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 06/02/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Chronic inflammation has been recognized as one of the hallmarks of cancer. We recently showed that parainflammation, a unique variant of inflammation between homeostasis and chronic inflammation, strongly promotes mouse gut tumorigenesis upon p53 loss. Here we explore the prevalence of parainflammation in human cancer and determine its relationship to certain molecular and clinical parameters affecting treatment and prognosis. RESULTS We generated a transcriptome signature to identify parainflammation in many primary human tumors and carcinoma cell lines as distinct from their normal tissue counterparts and the tumor microenvironment and show that parainflammation-positive tumors are enriched for p53 mutations and associated with poor prognosis. Non-steroidal anti-inflammatory drug (NSAID) treatment suppresses parainflammation in both murine and human cancers, possibly explaining a protective effect of NSAIDs against cancer. CONCLUSIONS We conclude that parainflammation, a low-grade form of inflammation, is widely prevalent in human cancer, particularly in cancer types commonly harboring p53 mutations. Our data suggest that parainflammation may be a driver for p53 mutagenesis and a guide for cancer prevention by NSAID treatment.
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Affiliation(s)
- Dvir Aran
- Institute for Computational Health Sciences, University of California, San Francisco, California, 94158, USA
| | - Audrey Lasry
- The Lautenberg Center for Immunology and Cancer Research, IMRIC, Hebrew University-Hadassah Medical School, Jerusalem, 91120, Israel
| | - Adar Zinger
- The Lautenberg Center for Immunology and Cancer Research, IMRIC, Hebrew University-Hadassah Medical School, Jerusalem, 91120, Israel
| | - Moshe Biton
- The Lautenberg Center for Immunology and Cancer Research, IMRIC, Hebrew University-Hadassah Medical School, Jerusalem, 91120, Israel
| | - Eli Pikarsky
- The Lautenberg Center for Immunology and Cancer Research, IMRIC, Hebrew University-Hadassah Medical School, Jerusalem, 91120, Israel
| | - Asaf Hellman
- Developmental Biology and Cancer Research, IMRIC, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Atul J Butte
- Institute for Computational Health Sciences, University of California, San Francisco, California, 94158, USA.
| | - Yinon Ben-Neriah
- The Lautenberg Center for Immunology and Cancer Research, IMRIC, Hebrew University-Hadassah Medical School, Jerusalem, 91120, Israel.
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Kamada N, Rogler G. The Innate Immune System: A Trigger for Many Chronic Inflammatory Intestinal Diseases. Inflamm Intest Dis 2016; 1:70-77. [PMID: 29922660 DOI: 10.1159/000445261] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 03/08/2016] [Indexed: 12/31/2022] Open
Abstract
Background Mononuclear phagocytes, such as monocytes, macrophages, and dendritic cells, are important cellular components of the innate immune system that contribute to the pathogenesis of many intestinal inflammatory diseases. Summary While mononuclear phagocytes play a key role in the induction of inflammation in many different tissues through production of pro-inflammatory cytokines and chemokines (such as IL-1, TNF, IL-6, IL-8 and MCP-1), free oxygen radicals (also termed 'oxidative burst'), proteases (such as cathepsins) and tissue-degrading enzymes (such as metalloproteinases), resident macrophages as well as dendritic cells in the intestine display an anergic and 'tolerogenic' phenotype mediating tolerance to commensal bacteria. In recent years many single nucleotide polymorphisms (SNPs) in genes mainly expressed in the above-mentioned cell types have been identified to convey an increased risk of autoimmune diseases. SNPs in the NOD2, ATG16L1 and TNFSF15 genes, which are involved in the function of the innate immune cells, are identified as risk factors for Crohn's disease (CD). Of note, these genes are involved in the different functions in the innate immune cells. For example, while NOD2 is required for intracellular recognition of microbial components, ATG16L1 is involved in autophagy responses against intracellular microbes. Likewise, TNFSF15 contributes to the induction of inflammatory responses by innate immune cells. Furthermore, the frequency of mutations in these genes differs by ethnicity. Genetic variations in the NOD2 and ATG16L1 genes are associated with CD in Caucasians but much less in Eastern Asian populations, whereas SNPs in TNFSF15 are dominated in Asian populations. Thus, different genetic risks may eventually lead to similar impairments in innate immune cells, thereby developing the same disease in Western and Asian patients with CD. Key Messages Despite differences in risk genes, similar mechanisms associated with the innate immune system may trigger autoimmune and chronic inflammatory intestinal diseases in East and West.
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Affiliation(s)
- Nobuhiko Kamada
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Mich., USA
| | - Gerhard Rogler
- Division of Gastroenterology and Hepatology, University Hospital of Zurich, Zurich, Switzerland
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Rosa L, Scaini G, Furlanetto CB, Galant LS, Vuolo F, Dall'Igna DM, Schuck PF, Ferreira GC, Dal-Pizzol F, Streck EL. Administration of branched-chain amino acids alters the balance between pro-inflammatory and anti-inflammatory cytokines. Int J Dev Neurosci 2015; 48:24-30. [PMID: 26608891 DOI: 10.1016/j.ijdevneu.2015.11.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 11/11/2015] [Accepted: 11/11/2015] [Indexed: 12/14/2022] Open
Abstract
Acute leucine intoxication and neurologic deterioration can develop rapidly at any age as a result of net protein degradation precipitated by infection or psychological stress in patients with maple syrup urine disease (MSUD). Here, we investigated the effects of acute and chronic Hyper-BCAA (H-BCAA) administration on pro- and anti-inflammatory cytokines in the brains of rats. For acute administration, Wistar rats (10 and 30 days) received three injections of BCAA pool (15.8 μL/g at 1-h intervals) or saline, subcutaneously. For chronic administration, Wistar rats (7 days) received of BCAA pool or saline twice a day for 21 days, subcutaneously. Our results showed that acute administration of H-BCAA increased IL-1β (∼ 78%; p ≤ 0.009) and TNF-α (∼ 155%; p ≤ 0.026) levels in the cerebral cortex but not in the hippocampus of infant rats. Moreover, IL-6 levels were increased in the hippocampus (∼ 135%; p ≤ 0.009) and cerebral cortex (∼ 417%; p ≤ 0.008), whereas IL-10 levels were decreased only in the hippocampus (∼ 42%; p ≤ 0.009). However, repeated administration of H-BCAA decreased IL-1β (∼ 59%; p ≤ 0.047), IL-6 (∼ 70%; p ≤ 0.009) and IFN-γ (∼ 70%; p ≤ 0.008) levels in the cerebral cortex, whereas the IL-6 (∼ 67%; p ≤ 0.009), IL-10 (∼ 58%; p ≤ 0.01) and IFN-γ (∼ 67%; p ≤ 0.009) levels were decreased in the hippocampus. These findings suggest that a better understanding of the inflammatory response in MSUD patients may be useful to develop therapeutic strategies to modulate the hyperinflammatory/hypoinflammatory axis.
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Affiliation(s)
- Luciana Rosa
- Laboratório de Bioenergética e Núcleo de Excelência em Neurociências Aplicadas de Santa Catarina (NENASC), Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil
| | - Giselli Scaini
- Laboratório de Bioenergética e Núcleo de Excelência em Neurociências Aplicadas de Santa Catarina (NENASC), Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil
| | - Camila B Furlanetto
- Laboratório de Bioenergética e Núcleo de Excelência em Neurociências Aplicadas de Santa Catarina (NENASC), Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil
| | - Leticia S Galant
- Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil; Laboratório de Fisiopatologia Experimental, Programa de Pós-graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Francieli Vuolo
- Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil; Laboratório de Fisiopatologia Experimental, Programa de Pós-graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Dhébora M Dall'Igna
- Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil; Laboratório de Fisiopatologia Experimental, Programa de Pós-graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Patrícia F Schuck
- Laboratório de Erros Inatos do Metabolismo, Programa de Pós-graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Gustavo C Ferreira
- Laboratório de Erros Inatos do Metabolismo, Programa de Pós-graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Felipe Dal-Pizzol
- Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil; Laboratório de Fisiopatologia Experimental, Programa de Pós-graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Emilio L Streck
- Laboratório de Bioenergética e Núcleo de Excelência em Neurociências Aplicadas de Santa Catarina (NENASC), Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, RS, Brazil.
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Lee W, Ku SK, Bae JS. Anti-inflammatory effects of Baicalin, Baicalein, and Wogonin in vitro and in vivo. Inflammation 2015; 38:110-25. [PMID: 25249339 DOI: 10.1007/s10753-014-0013-0] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Here, three structurally related polyphenols found in the Chinese herb Huang Qui, namely baicalin, baicalein, and wogonin, were examined for its effects on inflammatory responses by monitoring the effects of baicalin, baicalein, and wogonin on lipopolysaccharide (LPS)-mediated vascular inflammatory responses. We found that each compound inhibited LPS-induced barrier disruption, expression of cell adhesion molecules (CAMs), and adhesion/transendothelial migration of monocytes to human endothelial cells. Each compound induced potent inhibition of phorbol-12-myristate 13-acetate and LPS-induced endothelial cell protein C receptor shedding. It also suppressed LPS-induced hyperpermeability and leukocytes migration in vivo. Furthermore, each compound suppressed the production of tumor necrosis factor-α or interleukin-6 and the activation of nuclear factor-κB or extracellular regulated kinases 1/2 by LPS. Moreover, treatment with each compound resulted in reduced LPS-induced lethal endotoxemia. These results suggest that baicalin, baicalein, and wogonin posses anti-inflammatory functions by inhibiting hyperpermeability, expression of CAMs, and adhesion and migration of leukocytes, thereby endorsing its usefulness as a therapy for vascular inflammatory diseases.
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Affiliation(s)
- Wonhwa Lee
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, Kyungpook National University, 80 Dahak-ro, Buk-gu, Daegu, 702-701, Republic of Korea
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Anti-inflammatory effects of methylthiouracil in vitro and in vivo. Toxicol Appl Pharmacol 2015; 288:374-86. [DOI: 10.1016/j.taap.2015.08.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 07/25/2015] [Accepted: 08/14/2015] [Indexed: 01/11/2023]
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Anti-inflammatory effects of vicenin-2 and scolymoside in vitro and in vivo. Inflamm Res 2015; 64:1005-21. [DOI: 10.1007/s00011-015-0886-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 09/28/2015] [Accepted: 10/06/2015] [Indexed: 12/21/2022] Open
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A Novel Korean Red Ginseng Compound Gintonin Inhibited Inflammation by MAPK and NF-κB Pathways and Recovered the Levels of mir-34a and mir-93 in RAW 264.7 Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:624132. [PMID: 26579204 PMCID: PMC4633694 DOI: 10.1155/2015/624132] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 08/06/2015] [Indexed: 11/23/2022]
Abstract
The beneficial health promoting effects of ginseng from vitalizing the body to enhancing long life have been well explored very rapidly in the past few years. Up till now many ginsenosides have been discovered for their marvelous therapeutic effects. However during past three years, a novel ginseng compound has been discovered, called gintonin, that differs from other ginsenosides on the basis of its signal transduction and chemical nature. Gintonin has been widely studied for its anti-Alzheimer's disease activities and other neuropathies. However, its anti-inflammatory activity remained unexplored. In our study we have reported for the first time the anti-inflammatory activity of gintonin on RAW 264.7 cells. We found that gintonin potently suppresses the nitric oxide production without any cytotoxicity at given doses and also efficiently suppressed the levels of proinflammatory cytokines. Moreover, it mediaes its signal transduction via MAPK and NF-κB pathways and revives the levels of mir-34a and mir-93. These findings are valuable for the anti-inflammatory effects of this new compound with particular reference to microRNA involvement in the ginseng family.
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Hawiger J, Veach RA, Zienkiewicz J. New paradigms in sepsis: from prevention to protection of failing microcirculation. J Thromb Haemost 2015; 13:1743-56. [PMID: 26190521 PMCID: PMC5014149 DOI: 10.1111/jth.13061] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 07/06/2015] [Indexed: 12/24/2022]
Abstract
Sepsis, also known as septicemia, is one of the 10 leading causes of death worldwide. The rising tide of sepsis due to bacterial, fungal and viral infections cannot be stemmed by current antimicrobial therapies and supportive measures. New paradigms for the mechanism and resolution of sepsis and consequences for sepsis survivors are emerging. Consistent with Benjamin Franklin's dictum 'an ounce of prevention is worth a pound of cure', sepsis can be prevented by vaccinations against pneumococci and meningococci. Recently, the NIH NHLBI Panel redefined sepsis as 'severe endothelial dysfunction syndrome in response to intravascular and extravascular infections causing reversible or irreversible injury to the microcirculation responsible for multiple organ failure'. Microvascular endothelial injury underlies sepsis-associated hypotension, edema, disseminated intravascular coagulation, acute respiratory distress syndrome and acute kidney injury. Microbial genome products trigger 'genome wars' in sepsis that reprogram the human genome and culminate in a 'genomic storm' in blood and vascular cells. Sepsis can be averted experimentally by endothelial cytoprotection through targeting nuclear signaling that mediates inflammation and deranged metabolism. Endothelial 'rheostats' (e.g. inhibitors of NF-κB, A20 protein, CRADD/RAIDD protein and microRNAs) regulate endothelial signaling. Physiologic 'extinguishers' (e.g. suppressor of cytokine signaling 3) can be replenished through intracellular protein therapy. Lipid mediators (e.g. resolvin D1) hasten sepsis resolution. As sepsis cases rose from 387 330 in 1996 to 1.1 million in 2011, and are estimated to reach 2 million by 2020 in the US, mortality due to sepsis approaches that of heart attacks and exceeds deaths from stroke. More preventive vaccines and therapeutic measures are urgently needed.
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Affiliation(s)
- J Hawiger
- Immunotherapy Program at Vanderbilt University School of Medicine, Nashville, TN, USA
- Department of Medicine Division of Allergy Pulmonary and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - R A Veach
- Immunotherapy Program at Vanderbilt University School of Medicine, Nashville, TN, USA
- Department of Medicine Division of Allergy Pulmonary and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - J Zienkiewicz
- Immunotherapy Program at Vanderbilt University School of Medicine, Nashville, TN, USA
- Department of Medicine Division of Allergy Pulmonary and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
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Oliveira-Lima OC, Pinto MCX, Duchene J, Qadri F, Souza LL, Alenina N, Bader M, Santos RAS, Carvalho-Tavares J. Mas receptor deficiency exacerbates lipopolysaccharide-induced cerebral and systemic inflammation in mice. Immunobiology 2015; 220:1311-21. [PMID: 26297425 DOI: 10.1016/j.imbio.2015.07.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 07/22/2015] [Accepted: 07/23/2015] [Indexed: 12/11/2022]
Abstract
Beyond the classical actions of the renin-angiotensin system on the regulation of cardiovascular homeostasis, several studies have shown its involvement in acute and chronic inflammation. The G protein-coupled receptor Mas is a functional binding site for the angiotensin-(1-7); however, its role in the immune system has not been fully elucidated. In this study, we evaluated the effect of genetic deletion of Mas receptor in lipopolysaccharide (LPS)-induced systemic and cerebral inflammation in mice. Inflammatory response was triggered in Mas deficient (Mas(-/-)) and C57BL/6 wild-type (WT) mice (8-12 weeks-old) by intraperitoneal injection of LPS (5 mg/kg). Mas(-/-) mice presented more intense hypothermia compared to WT mice 24 h after LPS injection. Systemically, the bone marrow of Mas(-/-) mice contained a lower number of neutrophils and monocytes 3 h and 24 h after LPS injection, respectively. The plasma levels of inflammatory mediators KC, MCP-1 and IL-10 were higher in Mas(-/-) mice 24 h after LPS injection in comparison to WT. In the brain, Mas(-/-) animals had a significant increase in the number of adherent leukocytes to the brain microvasculature compared to WT mice, as well as, increased number of monocytes and neutrophils recruited to the pia-mater. The elevated number of adherent leukocytes on brain microvasculature in Mas(-/-) mice was associated with increased expression of CD11b - the alpha-subunit of the Mac-1 integrin - in bone marrow neutrophils 3h after LPS injection, and with increased brain levels of chemoattractants KC, MIP-2 and MCP-1, 24 h later. In conclusion, we demonstrated that Mas receptor deficiency results in exacerbated inflammation in LPS-challenged mice, which suggest a potential role for the Mas receptor as a regulator of systemic and brain inflammatory response induced by LPS.
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Affiliation(s)
- Onésia C Oliveira-Lima
- Departamento de Fisiologia e Biofísica, Instituto de Ciência Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Mauro C X Pinto
- Departamento de Cirurgia, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Johan Duchene
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | | | - Laura L Souza
- Departamento de Fisiologia e Biofísica, Instituto de Ciência Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Instituto Sírio-Libanês de Ensino e Pesquisa, São Paulo, Brazil
| | - Natalia Alenina
- Departamento de Fisiologia e Biofísica, Instituto de Ciência Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Michael Bader
- Departamento de Fisiologia e Biofísica, Instituto de Ciência Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Robson A S Santos
- Departamento de Fisiologia e Biofísica, Instituto de Ciência Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Juliana Carvalho-Tavares
- Departamento de Fisiologia e Biofísica, Instituto de Ciência Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
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Ahmad SF, Ansari MA, Zoheir KM, Bakheet SA, Korashy HM, Nadeem A, Ashour AE, Attia SM. Regulation of TNF-α and NF-κB activation through the JAK/STAT signaling pathway downstream of histamine 4 receptor in a rat model of LPS-induced joint inflammation. Immunobiology 2015; 220:889-98. [DOI: 10.1016/j.imbio.2015.01.008] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 01/18/2015] [Accepted: 01/22/2015] [Indexed: 11/28/2022]
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Inhibition of Oncogenic Transcription Factor REL by the Natural Product Derivative Calafianin Monomer 101 Induces Proliferation Arrest and Apoptosis in Human B-Lymphoma Cell Lines. Molecules 2015; 20:7474-94. [PMID: 25915462 PMCID: PMC4863944 DOI: 10.3390/molecules20057474] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 04/12/2015] [Accepted: 04/20/2015] [Indexed: 12/25/2022] Open
Abstract
Increased activity of transcription factor NF-κB has been implicated in many B-cell lymphomas. We investigated effects of synthetic compound calafianin monomer (CM101) on biochemical and biological properties of NF-κB. In human 293 cells, CM101 selectively inhibited DNA binding by overexpressed NF-κB subunits REL (human c-Rel) and p65 as compared to NF-κB p50, and inhibition of REL and p65 DNA binding by CM101 required a conserved cysteine residue. CM101 also inhibited DNA binding by REL in human B-lymphoma cell lines, and the sensitivity of several B-lymphoma cell lines to CM101-induced proliferation arrest and apoptosis correlated with levels of cellular and nuclear REL. CM101 treatment induced both phosphorylation and decreased expression of anti-apoptotic protein Bcl-XL, a REL target gene product, in sensitive B-lymphoma cell lines. Ectopic expression of Bcl-XL protected SUDHL-2 B-lymphoma cells against CM101-induced apoptosis, and overexpression of a transforming mutant of REL decreased the sensitivity of BJAB B-lymphoma cells to CM101-induced apoptosis. Lipopolysaccharide-induced activation of NF-κB signaling upstream components occurred in RAW264.7 macrophages at CM101 concentrations that blocked NF-κB DNA binding. Direct inhibitors of REL may be useful for treating B-cell lymphomas in which REL is active, and may inhibit B-lymphoma cell growth at doses that do not affect some immune-related responses in normal cells.
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