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Chen Q, Wang S, Guo J, Xie Q, Evivie SE, Song Y, Li B, Huo G. The Protective Effects of Lactobacillus plantarum KLDS 1.0344 on LPS-Induced Mastitis In Vitro and In Vivo. Front Immunol 2021; 12:770822. [PMID: 34858427 PMCID: PMC8630701 DOI: 10.3389/fimmu.2021.770822] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 10/21/2021] [Indexed: 12/02/2022] Open
Abstract
Cow mastitis, which significantly lowers milk quality, is mainly caused by pathogenic bacteria such as E. coli. Previous studies have suggested that lactic acid bacteria can have antagonistic effects on pathogenic bacteria that cause mastitis. In the current study, we evaluated the in vitro and in vivo alleviative effects of L. plantarum KLDS 1.0344 in mastitis treatment. In vitro antibacterial experiments were performed using bovine mammary epithelial cell (bMEC), followed by in vivo studies involving mastitis mouse models. In vitro results indicate that lactic acid was the primary substance inhibiting the E. coli pathogen. Meanwhile, treatment with L. plantarum KLDS 1.0344 can reduce cytokines' mRNA expression levels in the inflammatory response of bMEC induced by LPS. In vivo, the use of this strain reduced the secretion of inflammatory factors IL-6, IL-1β, and TNF-α, and decreased the activity of myeloperoxidase (MPO), and inhibited the secretion of p-p65 and p-IκBα. These results indicate that L. plantarum KLDS 1.0344 pretreatment can reduce the expression of inflammatory factors by inhibiting the activation of NF-κB signaling pathway, thus exerting prevent the occurrence of inflammation in vivo. Our findings show that L. plantarum KLDS 1.0344 has excellent properties as an alternative to antibiotics and can be developed into lactic acid bacteria preparation to prevent mastitis disease.
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Affiliation(s)
- Qingxue Chen
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, China
- Food College, Northeast Agricultural University, Harbin, China
| | - Song Wang
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, China
- Food College, Northeast Agricultural University, Harbin, China
| | - Jiayao Guo
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, China
- Food College, Northeast Agricultural University, Harbin, China
| | - Qinggang Xie
- Heilongjiang Feihe Dairy Company Ltd., Qiqihaer, China
| | - Smith Etareri Evivie
- Department of Animal Science, Faculty of Agriculture, University of Benin, Benin City, Nigeria
- Department of Food Science and Human Nutrition, Faculty of Agriculture, University of Benin, Benin City, Nigeria
| | - Yue Song
- Food College, Northeast Agricultural University, Harbin, China
| | - Bailiang Li
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, China
- Food College, Northeast Agricultural University, Harbin, China
| | - Guicheng Huo
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, China
- Food College, Northeast Agricultural University, Harbin, China
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2
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Wu Y, He T, Fu Y, Chen J. Corynoline protects lipopolysaccharide-induced mastitis through regulating AKT/GSK3β/Nrf2 signaling pathway. ENVIRONMENTAL TOXICOLOGY 2021; 36:2493-2499. [PMID: 34477289 DOI: 10.1002/tox.23362] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/16/2021] [Accepted: 08/24/2021] [Indexed: 02/05/2023]
Abstract
Inflammation has been known to be involved in the pathogenesis of mastitis. And anti-inflammatory agent is proposed to be a possible efficient therapeutic strategy for mastitis. Corynoline, a bioactive compound extracted from Corydalis bungeana Turcz., has been reported to have anti-inflammatory effect. However, whether corynoline has protective effect against mastitis remains unclear. The aim of this study was to evaluate the protective effect of corynoline on LPS-induced mastitis in mice. Inflammatory cytokine production was measured by ELISA. The proteins of signaling pathways were detected by western blot analysis. The results showed that treatment of corynoline at the doses of 15, 30, and 60 mg/kg significantly attenuated LPS-induced pathological damage of mammary tissues. Corynoline also ameliorated LPS-induced MPO activity, MDA content, and inflammatory cytokine TNF-α and IL-1β production in mammary tissues. LPS-induced NF-κB activation was inhibited by corynoline. Furthermore, our results showed corynoline significantly increased the expression of Nrf2 and the phosphorylation levels of AKT and GSK3β. In conclusion, our results indicated that corynoline protected against LPS-induced mastitis through regulating AKT/GSK3β/Nrf2 signaling pathway, which subsequently led to the inhibition of NF-κB and inflammatory response.
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Affiliation(s)
- Yunhao Wu
- Department of Breast Surgery, Clinical Research Center for Breast, West China School of Medicine/West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Tao He
- Department of Breast Surgery, Clinical Research Center for Breast, West China School of Medicine/West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yunhe Fu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Jie Chen
- Department of Breast Surgery, Clinical Research Center for Breast, West China School of Medicine/West China Hospital, Sichuan University, Chengdu, Sichuan, China
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3
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Yue J, Su K, Zhang G, Yang J, Xu C, Liu X. Dihydrotanshinone Attenuates LPS-Induced Acute Lung Injury in Mice by Upregulating LXRα. Inflammation 2021; 45:212-221. [PMID: 34467464 DOI: 10.1007/s10753-021-01539-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 08/09/2021] [Indexed: 11/26/2022]
Abstract
Dihydrotanshinone (DIH) is an extract of Salvia miltiorrhiza Bunge. It has been reported that DIH could regulate NF-κB signaling pathway. The aim of this study was to investigate whether DIH could protect mice from lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice. In this study, sixty mice were randomly divided into five groups, one group as blank control group, the second group as LPS control group, and the last three groups were pre-injected with different doses of DIH and then inhaled LPS for experimental comparison. After 12 h of LPS treatment, the wet-dry ratio, histopathlogical changes, and myeloperoxidase (MPO) activity of lungs were measured. In addition, ELISA kits were used to measure the levels of TNF-α and IL-1β inflammatory cytokines in bronchoalveolar lavage fluids (BALF), and western blot analysis was used to measure the activity of NF-κB signaling pathway. The results demonstrated that DIH could effectively reduce pulmonary edema, MPO activity, and improve the lung histopathlogical changes. Furthermore, DIH suppressed the levels of inflammatory cytokines in BALF, such as TNF-α and IL-1β. In addition, DIH could also downregulate the activity of NF-κB signaling pathway. We also found that DIH dose-dependently increased the expression of LXRα. In addition, DIH could inhibit LPS-induced IL-8 production and NF-κB activation in A549 cells. And the inhibitory effects were reversed by LXRα inhibitor geranylgeranyl pyrophosphate (GGPP). Therefore, we speculate that DIH regulates LPS-induced ALI in mice by increasing LXRα expression, which subsequently inhibiting NF-κB signaling pathway.
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Affiliation(s)
- Jing Yue
- Department of Anesthesiology, The Second Affiliated Hospital of Jilin University, Changchun, China
| | - Kai Su
- Department of Head and Neck Surgery, The Second Affiliated Hospital of Jilin University, Changchun, China
| | - Guangxin Zhang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Jilin University, Changchun, China
| | - Jinghui Yang
- Department of Hepatobiliary Pancreatic Surgery, China-Japan Friendship Hospital of Jilin University, Changchun, China
| | - Chengbi Xu
- Department of Head and Neck Surgery, The Second Affiliated Hospital of Jilin University, Changchun, China
| | - Xueshibojie Liu
- Department of Head and Neck Surgery, The Second Affiliated Hospital of Jilin University, Changchun, China.
- Department of Head and Neck Surgery, The Second Affiliated Hospital of Jilin University, Changchun, China.
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4
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Liver X receptor α participates in LPS-induced reduction of triglyceride synthesis in bovine mammary epithelial cells. J DAIRY RES 2020; 87:456-462. [PMID: 33261669 DOI: 10.1017/s0022029920000990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Lipopolysaccharides (LPS) could induce milk fat depression via regulating the body and blood fat metabolism. However, it is not completely clear how LPS might regulate triglyceride synthesis in dairy cow mammary epithelial cells (DCMECs). DCMECs were isolated and purified from dairy cow mammary tissue and treated with LPS. The level of triglyceride synthesis, the expression and activity of the liver X receptor α (LXRα), enzymes related to de novo fatty acid synthesis, and the expression of the fatty acid transporters were investigated. We found that LPS decreased the level of triglyceride synthesis via a down-regulation of the transcription, translation, and nuclear translocation level of the LXRα. The results also indicated that the transcription level of the LXRα target genes, sterol regulatory element binding protein 1 (SREBP1), fatty acid synthetase (FAS), acetyl-CoA carboxylase-1 (ACC1), were significantly down-regulated in DCMECs after LPS treatment. Our data may provide new insight into the mechanisms of milk fat depression caused by LPS.
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5
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Zahoor A, Yang Y, Yang C, Akhtar M, Guo Y, Shaukat A, Guo MY, Deng G. Gas6 negatively regulates the Staphylococcus aureus-induced inflammatory response via TLR signaling in the mouse mammary gland. J Cell Physiol 2020; 235:7081-7093. [PMID: 32052456 DOI: 10.1002/jcp.29604] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 01/13/2020] [Indexed: 02/06/2023]
Abstract
Staphylococcus aureus (S. aureus)-induced mastitis is the most frequent, pathogenic, and prevalent infection of the mammary gland. The ligand growth arrest-specific 6 (Gas6) is a secretory protein that binds to and activates Tyro3, Axl, and MerTK receptors. This study explored the role of Gas6 in S. aureus-induced mastitis. Our results revealed that TLR receptors initiate the innate immune response in mammary gland tissues and epithelial cells and that introducing S. aureus activates TLR2 and TLR6 to drive multiple intracellular mitogen-activated protein kinase (MAPK) and nuclear factor kappa-B (NF-κB) pathways. Moreover, S. aureus also induces Gas6, which then activates the TAM receptor kinase pathway, which is related to the inhibition of TLR2- and TLR6-mediated inflammatory pathways through SOCS1 and SOCS3 induction. Gas6 absence alone was found to be involved in the downregulation of TAM receptor-mediated anti-inflammatory effects by inducing significantly prominent expression of TRAF6 and low protein and messenger RNA expression of SOCS1 and SOCS3. S. aureus-induced MAPK and NF-ĸB p65 phosphorylation were also dependent on Gas6, which negatively regulated the production of Pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α) in S. aureus-treated mammary tissues and mammary epithelial cells. Our in vivo and in vitro study uncovered the Gas6-mediated negative feedback mechanism, which inhibits TLR2- and TLR6-mediated MAPK and NF-ĸB signaling by activating TAM receptor kinase (MerTK, Axl, and Tyro3) through the induction of SOCS1/SOCS3 proteins.
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Affiliation(s)
- Arshad Zahoor
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Yaping Yang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Chao Yang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Muhammad Akhtar
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Yingfang Guo
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Aftab Shaukat
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Meng-Yao Guo
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Ganzhen Deng
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
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Guo J, Wang Y, Jiang P, Yao H, Zhao C, Hu X, Cao Y, Zhang N, Fu Y, Shen H. Sodium butyrate alleviates lipopolysaccharide-induced endometritis in mice through inhibiting inflammatory response. Microb Pathog 2019; 137:103792. [PMID: 31605760 DOI: 10.1016/j.micpath.2019.103792] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/08/2019] [Accepted: 10/08/2019] [Indexed: 10/25/2022]
Abstract
Endometritis is commonly occurred in dairy cows after calving and results in a great deal of property damage. Although numerous studies have been performed to find the therapeutic agents for endometritis, the incidence of this disease remains high. Short-chain fatty acids (SCFAs), the major metabolic products of anaerobic bacteria fermentation in the gut, have been reported to exhibit anti-inflammatory properties. Therefore, the purpose of this study was to investigate the protective effects and mechanisms of sodium butyrate (SB) on lipopolysaccharide (LPS)-induced endometritis in mice. The mice were administered by intraperitoneal injection of SB at 1 h before LPS injection. 24 h later, the uterus tissues were collected. Hematoxylin and eosin (H & E) stained sections of uterus were used to determine the degree of the damage. Uterine myeloperoxidase (MPO) activity was used to analyze neutrophil granulocytes concentration. The levels of pro-inflammatory cytokines tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were measured by ELISA. The activation of the NF-κB signaling pathway proteins were detected by Western blot analysis. The results showed that SB significantly attenuated the pathological injury of the uterus tissues. SB also suppressed LPS-induced MPO activity and the production of inflammatory cytokines TNF-α and IL-1β. Furthermore, Western blot analysis showed that SB inhibited the activation of NF-κB signaling pathway. In addition, SB could inhibit histone deacetylases. In summary, SB protects against LPS-induced endometritis through HDAC inhibition.
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Affiliation(s)
- Jian Guo
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, PR China
| | - Yinan Wang
- Department of Obstetrics and Gynecology, the Second Hospital Affiliated of Jilin University, Changchun, Jilin Province, 130041, China
| | - Peng Jiang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, PR China
| | - Hongmei Yao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, PR China
| | - Caijun Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, PR China
| | - Xiaoyu Hu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, PR China
| | - Yongguo Cao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, PR China
| | - Naisheng Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, PR China
| | - Yunhe Fu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, PR China
| | - Haiqing Shen
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, PR China.
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7
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Chen Y, Wang Y, Yang M, Guo MY. Allicin Inhibited Staphylococcus aureus -Induced Mastitis by Reducing Lipid Raft Stability via LxRα in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:10863-10870. [PMID: 31507180 DOI: 10.1021/acs.jafc.9b04378] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Mastitis, inflammation of the mammary gland, occurs in both humans and animals. Staphylococcus aureus is the most common infectious bacterial pathogen associated with mastitis. We investigated the effects of allicin on S. aureus-induced mastitis in mice. Pathological histology revealed that allicin inhibited S. aureus-induced pathological damage and myeloperoxidase activity in mammary tissues. Enzyme-linked immunosorbent assays demonstrated that allicin reduced the production of IL-1β and TNF-α as well as inhibited the NF-κB and mitogen-activated protein kinase pathway by reducing phosphorylation of p65, IκBα, p38, JNK, and ERK. Western blotting revealed that allicin reduced TLR2 and TLR6 expression in mammary tissues and cells but not in HEK293 cells. The lipid raft content was reduced by allicin, which inhibited signaling downstream of TLR2 and TLR6. Liver X receptor α (LXRα) luciferase reporter assays and LXRα interference experiments showed that allicin improved the LXRα activity and adenosine 5'-triphosphate-binding cassette G and A1 (ABCG and ABCA1) expression, thereby reducing the cholesterol level, lipid raft formation, and downstream TLR2 and TLR6 pathway activity. These results demonstrated that allicin exerted anti-inflammatory effects against S. aureus mastitis by improving the LXRα activity and reducing lipid raft formation.
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Affiliation(s)
- Yu Chen
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine , Huazhong Agricultural University , Wuhan 430070 , People's Republic of China
| | - Ying Wang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine , Huazhong Agricultural University , Wuhan 430070 , People's Republic of China
| | - Mei Yang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine , Huazhong Agricultural University , Wuhan 430070 , People's Republic of China
| | - Meng-Yao Guo
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine , Huazhong Agricultural University , Wuhan 430070 , People's Republic of China
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8
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Grinman DY, Careaga VP, Wellberg EA, Dansey MV, Kordon EC, Anderson SM, Maier MS, Burton G, MacLean PS, Rudolph MC, Pecci A. Liver X receptor-α activation enhances cholesterol secretion in lactating mammary epithelium. Am J Physiol Endocrinol Metab 2019; 316:E1136-E1145. [PMID: 30964702 PMCID: PMC6620573 DOI: 10.1152/ajpendo.00548.2018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 04/01/2019] [Accepted: 04/04/2019] [Indexed: 11/22/2022]
Abstract
Liver X receptors (LXRs) are ligand-dependent transcription factors activated by cholesterol metabolites. These receptors induce a suite of target genes required for de novo synthesis of triglycerides and cholesterol transport in many tissues. Two different isoforms, LXRα and LXRβ, have been well characterized in liver, adipocytes, macrophages, and intestinal epithelium among others, but their contribution to cholesterol and fatty acid efflux in the lactating mammary epithelium is poorly understood. We hypothesize that LXR regulates lipogenesis during milk fat production in lactation. Global mRNA analysis of mouse mammary epithelial cells (MECs) revealed multiple LXR/RXR targets upregulated sharply early in lactation compared with midpregnancy. LXRα is the primary isoform, and its protein levels increase throughout lactation in MECs. The LXR agonist GW3965 markedly induced several genes involved in cholesterol transport and lipogenesis and enhanced cytoplasmic lipid droplet accumulation in the HC11 MEC cell line. Importantly, in vivo pharmacological activation of LXR increased the milk cholesterol percentage and induced sterol regulatory element-binding protein 1c (Srebp1c) and ATP-binding cassette transporter a7 (Abca7) expression in MECs. Cumulatively, our findings identify LXRα as an important regulator of cholesterol incorporation into the milk through key nodes of de novo lipogenesis, suggesting a potential therapeutic target in women with difficulty initiating lactation.
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Affiliation(s)
- Diego Y Grinman
- Instituto de Fisiología, Biología Molecular y Neurociencias, CONICET, Universidad de Buenos Aires , Buenos Aires , Argentina
| | - Valeria P Careaga
- Unidad De Microanálisis Y Métodos Físicos Aplicados a la Química Orgánica, CONICET, Universidad de Buenos Aires , Buenos Aires , Argentina
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires, Buenos Aires , Argentina
| | - Elizabeth A Wellberg
- Department of Pathology, University of Colorado, Anschutz Medical Campus, Denver, Colorado
| | - María V Dansey
- Unidad De Microanálisis Y Métodos Físicos Aplicados a la Química Orgánica, CONICET, Universidad de Buenos Aires , Buenos Aires , Argentina
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires , Buenos Aires , Argentina
| | - Edith C Kordon
- Instituto de Fisiología, Biología Molecular y Neurociencias, CONICET, Universidad de Buenos Aires , Buenos Aires , Argentina
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires , Buenos Aires , Argentina
| | - Steven M Anderson
- Department of Pathology, University of Colorado, Anschutz Medical Campus, Denver, Colorado
| | - Marta S Maier
- Unidad De Microanálisis Y Métodos Físicos Aplicados a la Química Orgánica, CONICET, Universidad de Buenos Aires , Buenos Aires , Argentina
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires, Buenos Aires , Argentina
| | - Gerardo Burton
- Unidad De Microanálisis Y Métodos Físicos Aplicados a la Química Orgánica, CONICET, Universidad de Buenos Aires , Buenos Aires , Argentina
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires, Buenos Aires , Argentina
| | - Paul S MacLean
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado, Anschutz Medical Campus, Denver, Colorado
| | - Michael C Rudolph
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado, Anschutz Medical Campus, Denver, Colorado
| | - Adali Pecci
- Instituto de Fisiología, Biología Molecular y Neurociencias, CONICET, Universidad de Buenos Aires , Buenos Aires , Argentina
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires , Buenos Aires , Argentina
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9
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Hu X, Zhang N, Fu Y. Role of Liver X Receptor in Mastitis Therapy and Regulation of Milk Fat Synthesis. J Mammary Gland Biol Neoplasia 2019; 24:73-83. [PMID: 30066175 DOI: 10.1007/s10911-018-9403-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 07/04/2018] [Indexed: 02/03/2023] Open
Abstract
Mastitis is important disease that causes huge economic losses in the dairy industry. In recent years, antibiotic therapy has become the primary treatment for mastitis, however, due to drug residue in milk and food safety factors, we lack safe and effective drugs for treating mastitis. Therefore, new targets and drugs are urgently needed to control mastitis. LXRα, one of the main members of the nuclear receptor superfamily, is reported to play important roles in metabolism, infection and immunity. Activation of LXRα could inhibit LPS-induced mastitis. Furthermore, LXRα is reported to enhance milk fat production, thus, LXRα may serve as a new target for mastitis therapy and regulation of milk fat synthesis. This review summarizes the effects of LXRα in regulating milk fat synthesis and treatment of mastitis and highlights the potential agonists involved in both issues.
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MESH Headings
- Animals
- Anti-Inflammatory Agents/pharmacology
- Anti-Inflammatory Agents/therapeutic use
- Cattle
- Dairying
- Escherichia coli/isolation & purification
- Escherichia coli/pathogenicity
- Female
- Global Burden of Disease
- Humans
- Immunity, Innate
- Lactation/metabolism
- Lipid Metabolism
- Liver X Receptors/agonists
- Liver X Receptors/metabolism
- Mammary Glands, Animal/cytology
- Mammary Glands, Animal/metabolism
- Mammary Glands, Animal/microbiology
- Mammary Glands, Animal/pathology
- Mammary Glands, Human/cytology
- Mammary Glands, Human/immunology
- Mammary Glands, Human/microbiology
- Mammary Glands, Human/pathology
- Mastitis/drug therapy
- Mastitis/immunology
- Mastitis/microbiology
- Mastitis, Bovine/drug therapy
- Mastitis, Bovine/epidemiology
- Mastitis, Bovine/immunology
- Mastitis, Bovine/microbiology
- Membrane Microdomains/metabolism
- Milk/metabolism
- Prevalence
- Receptors, Pattern Recognition/metabolism
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Affiliation(s)
- Xiaoyu Hu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, People's Republic of China
| | - Naisheng Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, People's Republic of China.
| | - Yunhe Fu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, People's Republic of China.
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10
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Qian X, Yang Z, Mao E, Chen E. Regulation of fatty acid synthesis in immune cells. Scand J Immunol 2018; 88:e12713. [PMID: 30176060 DOI: 10.1111/sji.12713] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 07/20/2018] [Accepted: 08/22/2018] [Indexed: 02/06/2023]
Abstract
Metabolic reprogramming plays a critical role in the important cellular metabolic alterations that occur during the activation of immune cells to enable them to adapt to the extracellular environment. Here, we review recent studies on how substrate availability and metabolites mediate the signalling pathways that regulate fatty acid synthesis (FAS) in different immune cells and how FAS determines cellular fate and function. The major regulators sterol regulatory element-binding proteins and liver X receptors, the key enzyme ATP citrate lyase and the PI3K-Akt-mTOR signalling axis play important roles in de novo FAS during a variety of biological events, including cellular proliferation and differentiation and the development of organelles and intracellular membrane components in immune cells. In addition, the regulation of FAS substantially contributes to the inflammatory response of immune cells. Post-transcriptional modifications in FAS are also closely associated with the functional processes of immune cells. Understanding and investigating the intrinsic regulatory mechanism of FAS is of great significance for developing novel therapies for inflammation-induced diseases.
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Affiliation(s)
- Xuchen Qian
- Department of Emergency and Critical Care Medicine, First People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhitao Yang
- Department of Emergency Intensive Care Unit, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Enqiang Mao
- Department of Emergency Intensive Care Unit, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Erzhen Chen
- Department of Emergency Intensive Care Unit, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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11
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Zhang Z, Zhou J, Song D, Sun Y, Liao C, Jiang X. Gastrodin protects against LPS-induced acute lung injury by activating Nrf2 signaling pathway. Oncotarget 2018; 8:32147-32156. [PMID: 28389632 PMCID: PMC5458274 DOI: 10.18632/oncotarget.16740] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 02/10/2017] [Indexed: 11/25/2022] Open
Abstract
Gastrodin (GAS), a phenolic glucoside derived from Gastrodiaelata Blume, has been reported to have anti-inflammatory effect. The aim of this study was to investigate the effects of GAS on LPS-induced acute lung injury in mice. ALI was induced by the intranasal administration of LPS and GAS was given 1 h or 12 h after LPS treatment. The results indicated that GAS treatment markedly attenuated the damage of lung injury induced by LPS. GAS attenuated the activity of myeloperoxidase (MPO) and down-regulated the levels of pro-inflammatory cytokines TNF-α, IL-6 and IL-1β in BALF. LPS-induced lung edema and lung function were also reversed by GAS. Furthermore, GAS was found to inhibit LPS-induced inflammatory cells infiltration. In addition, treatment of GAS inhibited LPS-induced NF-κB activation and up-regulated the expression of Nrf2 and HO-1. In conclusion, our results indicated that GAS had anti-inflammatory effects on LPS-induced acute lung injury. The anti-inflammatory mechanism of GAS was through the inhibition of NF-κB and activation of Nrf2 signaling pathways.
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Affiliation(s)
- Zhuo Zhang
- Laboratory of Pharmacology, College of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Jie Zhou
- Laboratory of Science of Chinese Pharmacology, College of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Daqiang Song
- Laboratory of Pharmacology, College of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Yuhong Sun
- Laboratory of Pharmacology, College of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Changli Liao
- Research Department, College of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Xian Jiang
- Department of Anesthesiology, The Affiliated Hospital of College of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
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12
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Wang J, Xiao C, Wei Z, Wang Y, Zhang X, Fu Y. Activation of liver X receptors inhibit LPS-induced inflammatory response in primary bovine mammary epithelial cells. Vet Immunol Immunopathol 2018; 197:87-92. [DOI: 10.1016/j.vetimm.2018.02.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 02/02/2018] [Accepted: 02/03/2018] [Indexed: 11/29/2022]
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13
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Wang J, Wei Z, Zhang X, Wang Y, Yang Z, Fu Y. Propionate Protects against Lipopolysaccharide-Induced Mastitis in Mice by Restoring Blood-Milk Barrier Disruption and Suppressing Inflammatory Response. Front Immunol 2017; 8:1108. [PMID: 28966615 PMCID: PMC5605562 DOI: 10.3389/fimmu.2017.01108] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 08/23/2017] [Indexed: 12/20/2022] Open
Abstract
Mastitis, an inflammation of the mammary glands, is a major disease affecting dairy animal worldwide. Propionate is one of the main short-chain fatty acid that can exert multiple effects on the inflammatory process. The purpose of this study is to investigate the mechanisms underlying the protective effects of sodium propionate against lipopolysaccharide (LPS)-induced mastitis model in mice. The data mainly confirm that inflammation and blood–milk barrier breakdown contribute to progression of the disease in this model. In mice with LPS, sodium propionate attenuates the LPS-induced histopathological changes, inflammatory cytokines tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and interleukin-1β (IL-1β) production, myeloperoxidase activity in mammary tissues. Given their importance in the blood–milk barrier, tight junction proteins occludin and claudin-3 are further investigated. Our results show that sodium propionate strikingly increases the expressions of occludin and claudin-3 and reduces the blood–milk barrier permeability in this model. Furthermore, in LPS-stimulated mouse mammary epithelial cells (mMECs), LPS increased the expressions of phosphorylated (p)-p65, p-IκB proteins, which is attenuated by sodium propionate. Finally, we examine the possibility that propionate acts as a histone deacetylase (HDAC) inhibitor, the results show that both sodium propionate and trichostatin A increase the level of histone H3 acetylation and inhibit the increased production of TNF-α, IL-6, and IL-1β in LPS-stimulated mMECs. These data suggest that sodium propionate protects against LPS-induced mastitis mainly by restoring blood–milk barrier disruption and suppressing inflammation via NF-κB signaling pathway and HDAC inhibition.
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Affiliation(s)
- Jingjing Wang
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Zhengkai Wei
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xu Zhang
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yanan Wang
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Zhengtao Yang
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yunhe Fu
- College of Veterinary Medicine, Jilin University, Changchun, China
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14
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de Castro MRT, Ferreira APDO, Busanello GL, da Silva LRH, da Silveira Junior MEP, Fiorin FDS, Arrifano G, Crespo-López ME, Barcelos RP, Cuevas MJ, Bresciani G, González-Gallego J, Fighera MR, Royes LFF. Previous physical exercise alters the hepatic profile of oxidative-inflammatory status and limits the secondary brain damage induced by severe traumatic brain injury in rats. J Physiol 2017; 595:6023-6044. [PMID: 28726269 DOI: 10.1113/jp273933] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 06/19/2017] [Indexed: 12/20/2022] Open
Abstract
KEY POINTS An early inflammatory response and oxidative stress are implicated in the signal transduction that alters both hepatic redox status and mitochondrial function after traumatic brain injury (TBI). Peripheral oxidative/inflammatory responses contribute to neuronal dysfunction after TBI Exercise training alters the profile of oxidative-inflammatory status in liver and protects against acute hyperglycaemia and a cerebral inflammatory response after TBI. Approaches such as exercise training, which attenuates neuronal damage after TBI, may have therapeutic potential through modulation of responses by metabolic organs. The vulnerability of the body to oxidative/inflammatory in TBI is significantly enhanced in sedentary compared to physically active counterparts. ABSTRACT Although systemic responses have been described after traumatic brain injury (TBI), little is known regarding potential interactions between brain and peripheral organs after neuronal injury. Accordingly, we aimed to investigate whether a peripheral oxidative/inflammatory response contributes to neuronal dysfunction after TBI, as well as the prophylactic role of exercise training. Animals were submitted to fluid percussion injury after 6 weeks of swimming training. Previous exercise training increased mRNA expression of X receptor alpha and ATP-binding cassette transporter, and decreased inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), tumor necrosis factor (TNF)-α and interleukin (IL)-6 expression per se in liver. Interestingly, exercise training protected against hepatic inflammation (COX-2, iNOS, TNF-α and IL-6), oxidative stress (decreases in non-protein sulfhydryl and glutathione, as well as increases in 2',7'-dichlorofluorescein diacetate oxidation and protein carbonyl), which altered hepatic redox status (increases in myeloperoxidase and superoxide dismutase activity, as well as inhibition of catalase activity) mitochondrial function (decreases in methyl-tetrazolium and Δψ, as well as inhibition of citrate synthase activity) and ion gradient homeostasis (inhibition of Na+ ,K+ -ATPase activity inhibition) when analysed 24 h after TBI. Previous exercise training also protected against dysglycaemia, impaired hepatic signalling (increase in phosphorylated c-Jun NH2-terminal kinase, phosphorylated decreases in insulin receptor substrate and phosphorylated AKT expression), high levels of circulating and neuronal cytokines, the opening of the blood-brain barrier, neutrophil infiltration and Na+ ,K+ -ATPase activity inhibition in the ipsilateral cortex after TBI. Moreover, the impairment of protein function, neurobehavioural (neuromotor dysfunction and spatial learning) disability and hippocampal cell damage in sedentary rats suggests that exercise training also modulates peripheral oxidative/inflammatory pathways in TBI, which corroborates the ever increasing evidence regarding health-related outcomes with respect to a physically active lifestyle.
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Affiliation(s)
- Mauro Robson Torres de Castro
- Programa de Pós-graduação em Educação Física.,Centro de Educação Física e Desportos, Laboratório de Bioquímica do Exercício
| | | | - Guilherme Lago Busanello
- Programa de Pós-graduação em Educação Física.,Centro de Educação Física e Desportos, Laboratório de Bioquímica do Exercício
| | | | | | - Fernando da Silva Fiorin
- Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Gabriela Arrifano
- Laboratório de Farmacologia Molecular, Instituto de Ciências Biológicas (ICB), Universidade Federal do Pará (UFPA), Belém, Brazil
| | - Maria Elena Crespo-López
- Laboratório de Farmacologia Molecular, Instituto de Ciências Biológicas (ICB), Universidade Federal do Pará (UFPA), Belém, Brazil
| | - Rômulo Pillon Barcelos
- Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - María J Cuevas
- Institute of Biomedicine (IBIOMED) and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), University of León, León, Spain
| | - Guilherme Bresciani
- Escuela de Educación Física, Pontificia Universidad Católica de Valparaiso (PUCV), Valparaiso, Chile
| | - Javier González-Gallego
- Institute of Biomedicine (IBIOMED) and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), University of León, León, Spain
| | - Michele Rechia Fighera
- Programa de Pós-graduação em Educação Física.,Centro de Educação Física e Desportos, Laboratório de Bioquímica do Exercício.,Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Luiz Fernando Freire Royes
- Programa de Pós-graduação em Educação Física.,Centro de Educação Física e Desportos, Laboratório de Bioquímica do Exercício.,Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Brazil
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15
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Zhang X, Wang Y, Xiao C, Wei Z, Wang J, Yang Z, Fu Y. Resveratrol inhibits LPS-induced mice mastitis through attenuating the MAPK and NF-κB signaling pathway. Microb Pathog 2017; 107:462-467. [PMID: 28389348 DOI: 10.1016/j.micpath.2017.04.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 04/01/2017] [Accepted: 04/03/2017] [Indexed: 12/15/2022]
Abstract
Resveratrol is a natural polyphenol extracted from mangy plants. It has been reported that resveratrol show multitudinous positive role in biology such as anti-oxidant, anti-nociception and anti-inflammatory effects. Therefore, the present study devotes to test the effect of resveratrol on LPS-induced mastitis in mice. Resveratrol was administered intraperitoneally 1 h before LPS treatment. And the anti-inflammatory effect of resveratrol was measured by histopathological examination, MPO assay, real-time PCR and western blotting analysis. The results showed that resveratrol significantly reduced the LPS-induced mammary histopathological changes. Meanwhile, it sharply attenuated the activity of MPO. The result also indicated that the resveratrol can decrease the expression of pro-inflammatory cytokines TNF-α and IL-1β. From the results of western blotting, resveratrol suppressed the expression of phosphorylation of p65 and IκB from NF-κB signal pathway and phosphorylation of p38 and ERK from MAPK signal pathway. These findings suggested that resveratrol may inhibit the inflammatory response in the mastitis.
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Affiliation(s)
- Xu Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, People's Republic of China
| | - Yanan Wang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, People's Republic of China
| | - Chong Xiao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, People's Republic of China
| | - Zhengkai Wei
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, People's Republic of China
| | - Jingjing Wang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, People's Republic of China
| | - Zhengtao Yang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, People's Republic of China
| | - Yunhe Fu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, People's Republic of China; Department of Pathogenobiology, The Key Laboratory of Zoonosis, Chinese Ministry of Education, College of Basic Medicine, Jilin University, Changchun, Jilin Province 130062, People's Republic of China.
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16
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Chao CS, Tsai CS, Chang YP, Chen JM, Chin HK, Yang SC. Hyperin inhibits nuclear factor kappa B and activates nuclear factor E2-related factor-2 signaling pathways in cisplatin-induced acute kidney injury in mice. Int Immunopharmacol 2016; 40:517-523. [DOI: 10.1016/j.intimp.2016.09.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 09/19/2016] [Accepted: 09/22/2016] [Indexed: 10/20/2022]
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17
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Effects of platycodin D on IL-1β-induced inflammatory response in human osteoarthritis chondrocytes. Int Immunopharmacol 2016; 40:474-479. [PMID: 27743553 DOI: 10.1016/j.intimp.2016.09.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 09/01/2016] [Accepted: 09/24/2016] [Indexed: 11/21/2022]
Abstract
Platycodin D (PYD), a major saponin derived and isolated from the roots of Platycodon grandiflorum, has been reported to have anti-inflammatory and anti-tumor effects. The present study aimed to investigate the effects of PYD on IL-1β-stimulated human osteoarthritis chondrocytes. Chondrocytes were treated with PYD 1h before IL-1β treatment. The levels of MMP1, MMP13, IL-8, RANTES, PGE2, and NO were measured in this study. The expression of LXRα, NF-κB, and IκBα were detected by western blot analysis. The results showed that PYD significantly inhibited IL-1β-induced MMP1, MMP13, IL-8, RANTES, PGE2, and NO production. PYD also suppressed IL-1β-induced NF-κB activation. Furthermore, the expression of LXRα was up-regulated by PYD in a dose-dependent manner. In addition, LXRα siRNA inhibited the effects of PYD on MMP1, MMP13, PGE2, and NO production in human osteoarthritis chondrocytes. In conclusion, these results suggested that PYD attenuated IL-1β-induced inflammatory response in osteoarthritis chondrocyte by activating LXRα.
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18
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Guo MY, Li WY, Zhang Z, Qiu C, Li C, Deng G. Betulin suppresses S. aureus-induced mammary gland inflammatory injury by regulating PPAR-γ in mice. Int Immunopharmacol 2015; 29:824-831. [PMID: 26344430 DOI: 10.1016/j.intimp.2015.08.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 08/22/2015] [Accepted: 08/28/2015] [Indexed: 01/21/2023]
Abstract
Mastitis is a postpartum disease in both humans and animals. Staphylococcus aureus (S. aureus) can induce mastitis by infection of the lactiferous ducts. There is no efficacious treatment for S. aureus-induced mastitis. Betulin has been confirmed to have multiple biological activities, including anti-inflammatory properties. The present study was to determine the anti-inflammatory effect of betulin on S. aureus-induced mastitis and to confirm the mechanism of action involved. In vivo, betulin ameliorated the histopathological changes that were induced by S. aureus. ELISA and qPCR results showed that betulin inhibited TNF-α, IL-1β and IL-6 production. Western blotting results demonstrated that betulin inhibited NF-κB phosphorylation but promoted the expression of PPAR-γ. Further investigations were performed in vitro with mouse Mammary Epithelial Cells (mMECs). The results indicated the betulin inhibited the activity of the NF-κB pathway and increased PPAR-γ expression and transcriptional activity. All of the results in the present study demonstrated that betulin played a protective anti-inflammatory role against S. aureus infection in mammary gland tissues and cells by activating PPAR-γ and inhibiting the activation of NF-κB.
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Affiliation(s)
- Meng-Yao Guo
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Wen-Yu Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Zhenbiao Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Changwei Qiu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Chengye Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Ganzhen Deng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, People's Republic of China.
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19
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Hu X, Tian Y, Wang T, Zhang W, Wang W, Gao X, Qu S, Cao Y, Zhang N. TRAM-Derived Decoy Peptides inhibits the inflammatory response in mouse mammary epithelial cells and a mastitis model in mice. Eur J Pharmacol 2015; 764:607-612. [PMID: 26101068 DOI: 10.1016/j.ejphar.2015.06.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Revised: 06/09/2015] [Accepted: 06/15/2015] [Indexed: 12/13/2022]
Abstract
It has been proved that TRAM-Derived Decoy peptides have anti-inflammatory properties. In this study, we synthesized a TRAM-Derived decoy peptide (TM6), belongs to TRAM TIR domain, of which sequence is "N"-RQIKIWFQNRRMKWK, KENFLRDTWCNFQFY-"C" and evaluated the effects of TM6 on lipopolysaccharide-induced mastitis in mice. In vivo, LPS-induced mice mastitis model was established by injection of LPS through the duct of mammary gland. TM6 was injected 1h before or after LPS treatment. In vitro, primary mouse mammary epithelial cells were used to investigate the effects of TM6 on LPS-induced inflammatory responses. The results showed that TM6 inhibited LPS-induced mammary gland histopathologic changes, MPO activity, and TNF-α, IL-1β and IL-6 production in mice. In vitro, TM6 significantly inhibited LPS-induced TNF-α and IL-6 production, as well as NF-κB and MAPKs activation. In conclusion, this study demonstrated that TM6 had protective effects on LPS-mastitis and may be a promising therapeutic reagent for mastitis treatment.
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Affiliation(s)
- Xiaoyu Hu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, Republic of China
| | - Yuan Tian
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, Republic of China
| | - Tiancheng Wang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, Republic of China
| | - Wenlong Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, Republic of China
| | - Wei Wang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, Republic of China
| | - Xuejiao Gao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, Republic of China
| | - Shihui Qu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, Republic of China
| | - Yongguo Cao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, Republic of China.
| | - Naisheng Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, Republic of China.
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20
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Fu K, Lv X, Li W, Wang Y, Li H, Tian W, Cao R. Berberine hydrochloride attenuates lipopolysaccharide-induced endometritis in mice by suppressing activation of NF-κB signal pathway. Int Immunopharmacol 2015; 24:128-32. [DOI: 10.1016/j.intimp.2014.11.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 11/05/2014] [Accepted: 11/05/2014] [Indexed: 01/09/2023]
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