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Vansarla G, Håkansson AP, Bergenfelz C. HAMLET a human milk protein-lipid complex induces a pro-inflammatory phenotype of myeloid cells. Eur J Immunol 2021; 51:965-977. [PMID: 33348422 PMCID: PMC8248127 DOI: 10.1002/eji.202048813] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 11/06/2020] [Accepted: 12/18/2020] [Indexed: 12/15/2022]
Abstract
HAMLET is a protein‐lipid complex with a specific and broad bactericidal and tumoricidal activity, that lacks cytotoxic activity against healthy cells. In this study, we show that HAMLET also has general immune‐stimulatory effects on primary human monocyte‐derived dendritic cells and macrophages (Mo‐DC and Mo‐M) and murine RAW264.7 macrophages. HAMLET, but not its components alpha‐lactalbumin or oleic acid, induces mature CD14low/–CD83+ Mo‐DC and M1‐like CD14+CD86++ Mo‐M surface phenotypes. Concomitantly, inflammatory mediators, including IL‐2, IL‐6, IL‐10, IL‐12 and MIP‐1α, were released in the supernatant of HAMLET‐stimulated cells, indicating a mainly pro‐inflammatory phenotype. The HAMLET‐induced phenotype was mediated by calcium, NFκB and p38 MAPK signaling in Mo‐DCs and calcium, NFκB and ERK signaling in Mo‐M as inhibitors of these pathways almost completely blocked the induction of mature Mo‐DCs and M1‐like Mo‐M. Compared to unstimulated Mo‐DCs, HAMLET‐stimulated Mo‐DCs were more potent in inducing T cell proliferation and HAMLET‐stimulated macrophages were more efficient in phagocytosis of Streptococcus pneumoniae in vitro. This indicates a functionally activated phenotype of HAMLET‐stimulated DCs and macrophages. Combined, we propose that HAMLET has a two‐fold anti‐bacterial activity; one inducing direct cytotoxic activity, the other indirectly mediating elimination of bacteria by activation of immune cells of the myeloid lineage.
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Affiliation(s)
- Goutham Vansarla
- Division of Experimental Infection Medicine, Department of Translational Medicine, Lund University, Malmö, SE-214 28, Sweden
| | - Anders P Håkansson
- Division of Experimental Infection Medicine, Department of Translational Medicine, Lund University, Malmö, SE-214 28, Sweden
| | - Caroline Bergenfelz
- Division of Experimental Infection Medicine, Department of Translational Medicine, Lund University, Malmö, SE-214 28, Sweden
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2
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Structural characterization and immunomodulatory activity of a polysaccharide from Eurotium cristatum. Int J Biol Macromol 2020; 162:609-617. [DOI: 10.1016/j.ijbiomac.2020.06.099] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 05/30/2020] [Accepted: 06/11/2020] [Indexed: 12/15/2022]
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3
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Li T, Gao J, Du M, Mao X. Bovine α-lactalbumin hydrolysates ameliorate obesity-associated endotoxemia and inflammation in high-fat diet-fed mice through modulation of gut microbiota. Food Funct 2019; 10:3368-3378. [DOI: 10.1039/c8fo01967c] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Gut microbiota has been identified as an important factor in the link between nutrient excess and obesity.
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Affiliation(s)
- Tiange Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
| | - Jing Gao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
| | - Min Du
- Department of Animal Sciences
- Washington State University
- Pullman
- USA
| | - Xueying Mao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
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4
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Ma Y, Qiao X, Zeng R, Cheng R, Zhang J, Luo Y, Nie Y, Hu Y, Yang Z, Zhang J, Liu L, Xu W, Xu CC, Xu L. Irisin promotes proliferation but inhibits differentiation in osteoclast precursor cells. FASEB J 2018; 32:fj201700983RR. [PMID: 29771602 DOI: 10.1096/fj.201700983rr] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The receptor activator of NF-κB ligand-induced osteoclast differentiation has a critical role in the process of bone metabolism. Overactivation of osteoclastogenesis may result in a series of diseases. Irisin, a novel myokine, which was first reported in 2012, has been proposed to mediate the beneficial metabolic effects of exercise. Studies have demonstrated that irisin targets osteoblasts by promoting osteoblast proliferation and differentiation; however, the underlying mechanism regarding the effect of irisin on osteoclasts remains elusive. Using 2 types of osteoclast precursor cells, RAW264.7 cells and mouse bone marrow monocytes, we showed that irisin promoted osteoclast precursor cell proliferation but inhibited osteoclast differentiation. Irisin down-regulated the expression of osteoclast differentiation marker genes, including receptor activators of NF-κB, nuclear factor of activated T cells, cytoplasmic 1, cathepsin K, and tartrate-resistant acid phosphatase (TRAP), as well as decreasing the number of TRAP-positive multinucleated cells and hydroxyapatite resorption pits. Furthermore, we showed that irisin suppressed the NF-κB signaling pathway, but activated the p38 and JNK signaling pathways. In the presence of an inhibitor of p38 and JNK, irisin-induced promotion of RAW264.7 cell proliferation was attenuated. However, irisin-induced inhibition of osteoclast differentiation was not affected by either the p38 or JNK signaling pathway. Our study suggested the direct effect of irisin on osteoclastogenesis and revealed the mechanism responsible for the therapeutic potential of irisin in bone metabolism disease.-Ma, Y., Qiao, X., Zeng, R., Cheng, R., Zhang, J., Luo, Y., Nie, Y., Hu, Y., Yang, Z., Zhang, J., Liu, L., Xu, W., Xu, C. C., Xu, L. Irisin promotes proliferation but inhibits differentiation in osteoclast precursor cells.
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Affiliation(s)
- Yaxian Ma
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
| | - Xiaoyong Qiao
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
| | - Rujun Zeng
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
| | - Ran Cheng
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
| | - Jun Zhang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
| | - Yunyao Luo
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
| | - Ying Nie
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
| | - Ying Hu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
| | - Zhilan Yang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
| | - Jing Zhang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
| | - Lin Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
| | - Wenming Xu
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
| | - Charles C Xu
- College of Engineering, Ohio State University, Columbus, Ohio, USA
| | - Liangzhi Xu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- The Joint Laboratory for Reproductive Medicine, Sichuan University-Chinese University of Hong Kong, Hong Kong, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China; and
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Wang D, Mu Y, Dong H, Yan H, Hao C, Wang X, Zhang L. Chemical Constituents of the Ethyl Acetate Extract from Diaphragma juglandis Fructus and Their Inhibitory Activity on Nitric Oxide Production In Vitro. Molecules 2017; 23:molecules23010072. [PMID: 29286331 PMCID: PMC6017448 DOI: 10.3390/molecules23010072] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 12/26/2017] [Accepted: 12/28/2017] [Indexed: 01/03/2023] Open
Abstract
Diaphragma juglandis fructus contains various bioactive constituents. Fourteen compounds were isolated from Diaphragma juglandis fructus by preparative high performance liquid chromatography (pre-HPLC) and high-speed counter-current chromatography (HSCCC). Their structures were identified by nuclear magnetic resonance (NMR) and electrospray ionization mass spectrometry (ESI-MS). Compounds (+)-dehydrovomifoliol (12), (6R,9R)-9-hydroxymegastigman-4-en-3-one (13) and (6R,9S)-9-hydroxymegastigman-4-en-3-one (14) are found from Juglans regia L. for the first time. Compounds dihydrophaseic acid (2), blumenol B (3) and (4S)-4-hydroxy-1-tetralone (11) are isolated from Diaphragma juglandis fructus for the first time. The anti-inflammatory effects of isolated compounds were evaluated by an in vitro model of lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. Compounds gallic acid (1), ethyl gallate (9) and (+)-dehydrovomifoliol (12) exhibited inhibitory activity on the nitric oxide production of RAW 264.7 at a concentration of 25 μM. The result indicated that the combination HSCCC with pre-HPLC is an effective way for compound separation and purification. And Diaphragma juglandis fructus constituents have the potential for the treatment of inflammatory-related diseases.
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Affiliation(s)
- Dan Wang
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), 19 Keyuan Street, Jinan 250014, China.
- College of Food Science and Engineering, Shandong Agricultural University, 61 Daizong Street, Taian 271018, China.
| | - Yan Mu
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), 19 Keyuan Street, Jinan 250014, China.
| | - Hongjing Dong
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), 19 Keyuan Street, Jinan 250014, China.
| | - Huijiao Yan
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), 19 Keyuan Street, Jinan 250014, China.
| | - Cui Hao
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), 19 Keyuan Street, Jinan 250014, China.
| | - Xiao Wang
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), 19 Keyuan Street, Jinan 250014, China.
| | - Lisi Zhang
- Shandong Institute of Pomology, Shandong Academy of Agricultural Sciences, 66 Longtan Street, Taian 271000, China.
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6
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Martins CAF, Campos ML, Irioda AC, Stremel DP, Trindade ACLB, Pontarolo R. Anti-Inflammatory Effect of Malva sylvestris, Sida cordifolia, and Pelargonium graveolens Is Related to Inhibition of Prostanoid Production. Molecules 2017; 22:E1883. [PMID: 29099738 PMCID: PMC6150399 DOI: 10.3390/molecules22111883] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 10/29/2017] [Indexed: 12/17/2022] Open
Abstract
The ability of plant extracts and preparations to reduce inflammation has been proven by different means in experimental models. Since inflammation enhances the release of specific mediators, inhibition of their production can be used to investigate the anti-inflammatory effect of plants widely used in folk medicine for this purpose. The study was performed for leaves and flowers of Malva sylvestris, and leaves of Sida cordifolia and Pelargonium graveolens. These are three plant species known in Brazil as Malva. The anti-inflammatory activity of extracts and fractions (hexane, chloroform, ethyl acetate, and residual) was evaluated by quantitation of prostaglandins (PG) PGE₂, PGD₂, PGF2α, and thromboxane B₂ (the stable nonenzymatic product of TXA₂) concentration in the supernatant of lipopolysaccharide (LPS)- induced RAW 264.7 cells. Inhibition of anti-inflammatory mediator release was observed for plants mainly in the crude extract, ethyl acetate fraction, and residual fraction. The results suggest superior activity of S. cordifolia, leading to significantly lower values of all mediators after treatment with its residual fraction, even at the lower concentration tested (10 μg/mL). M. sylvestris and P. graveolens showed similar results, such as the reduction of all mediators after treatment, with leaf crude extracts (50 μg/mL). These results suggest that the three species known as Malva have anti-inflammatory properties, S. cordifolia being the most potent.
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Affiliation(s)
| | - Michel Leandro Campos
- Department of Pharmacy, Universidade Federal do Paraná, 632 Lothário Meissner Avenue, Curitiba 80210-170, Brazil.
| | - Ana Carolina Irioda
- Department of Pharmacy, Pelé Pequeno Príncipe Research Institute, 1632 Silva Jardim Avenue, Curitiba 80250-060, Brazil.
| | - Dile Pontarolo Stremel
- Department of Pharmacy, Universidade Federal do Paraná, 632 Lothário Meissner Avenue, Curitiba 80210-170, Brazil.
| | | | - Roberto Pontarolo
- Department of Pharmacy, Universidade Federal do Paraná, 632 Lothário Meissner Avenue, Curitiba 80210-170, Brazil.
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7
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Zemankova N, Chlebova K, Matiasovic J, Prodelalova J, Gebauer J, Faldyna M. Bovine lactoferrin free of lipopolysaccharide can induce a proinflammatory response of macrophages. BMC Vet Res 2016; 12:251. [PMID: 27829421 PMCID: PMC5103330 DOI: 10.1186/s12917-016-0878-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 11/02/2016] [Indexed: 12/12/2022] Open
Abstract
Background Lactoferrin (LF) is an 80 kDa glycoprotein which is known for its effects against bacteria, viruses and other pathogens. It also has a high potential in nutrition therapy and welfare of people and a variety of animals, including piglets. The ability to bind lipopolysaccharide (LPS) is one of the described anti-inflammatory mechanisms of LF. Previous studies suggested that cells can be stimulated even by LPS-free LF. Therefore, the aim of our study was to bring additional information about this possibility. Porcine monocyte derived macrophages (MDMF) and human embryonic kidney (HEK) cells were stimulated with unpurified LF in complex with LPS and with purified LF without bound LPS. Results Both cell types were stimulated with unpurified as well as purified LF. On the other hand, neither HEK0 cells not expressing any TLR nor HEK4a cells transfected with TLR4 produced any pro-inflammatory cytokine transcripts after stimulation with purified LF. This suggests that purified LF without LPS stimulates cells via another receptor than TLR4. An alternative, TLR4-independent, pathway was further confirmed by analyses of the NF-kappa-B-inducing kinase (NIK) activation. Western blot analyses showed NIK which activates different NFκB subunits compared to LF-LPS signaling via TLR4. Though, this confirmed an alternative pathway which is used by the purified LF free of LPS. This stimulation of MDMF led to low, but significant amounts of pro-inflammatory cytokines, which can be considered as a positive stimulation of the immune system. Conclusion Our results suggest that LF’s ability is not only to bind LPS, but LF itself may be a stimulant of pro-inflammatory pathways.
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Affiliation(s)
- Nada Zemankova
- Veterinary Research Institute, Hudcova 296/70, Brno, 621 00, Czech Republic.,Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Katarina Chlebova
- Veterinary Research Institute, Hudcova 296/70, Brno, 621 00, Czech Republic.,Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Jan Matiasovic
- Veterinary Research Institute, Hudcova 296/70, Brno, 621 00, Czech Republic
| | - Jana Prodelalova
- Veterinary Research Institute, Hudcova 296/70, Brno, 621 00, Czech Republic
| | - Jan Gebauer
- Veterinary Research Institute, Hudcova 296/70, Brno, 621 00, Czech Republic.,Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Martin Faldyna
- Veterinary Research Institute, Hudcova 296/70, Brno, 621 00, Czech Republic.
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8
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Yang L, Liu G, Lin Z, Wang Y, He H, Liu T, Kamp DW. Pro-inflammatory response and oxidative stress induced by specific components in ambient particulate matter in human bronchial epithelial cells. ENVIRONMENTAL TOXICOLOGY 2016; 31:923-936. [PMID: 25533354 DOI: 10.1002/tox.22102] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 12/03/2014] [Accepted: 12/07/2014] [Indexed: 06/04/2023]
Abstract
Previous studies have shown that biological effect of particulate matter (PM2.5) is involved in including chemical composition and mass concentration, but the precise components and biological action on human bronchial epithelial cell line (BEAS-2B) are still unclear. The aim of this study was to evaluate the in vitro toxicity of PM2.5 collected at six urban sites in China, and to investigate how particle composition affects cytotoxicity. We used human bronchial epithelial (BEAS-2B) cell lines as model in vitro to expose to PM2.5 from different source, and then reactive oxygen species (ROS), superoxide dismutase activity and total antioxidant capacity were analyzed. Furthermore, we estimated the polycyclic aromatic hydrocarbon (PAH) and transition metal and the endotoxin contents. The mRNA expression of IL-1β and IL-10 following exposure to PM2.5 was measured by QRT-PCR. We also observed the mitochondrial membrane potential (MMP) using JC-1 staining, and apoptosis of BEAS-2B using flow cytometry. In addition, double-stranded DNA breaks (DSBs) were assessed using γ-H2AX immunofluorescence. Our results show that high concentrations of PAHs and elemental Ni were strongly associated with high apoptosis rates and high expression of IL-1β, in addition, Fe element was associated with the ROS level, furthermore, Fe and Cr element were associated with DNA damage in BEAS-2B cells. The cytotoxic effects of urban PM2.5 derived from six different cities in China appear dependent on the specific components in each. Our results indicate that air quality standards based on PM2.5 components may be more relevant than concentration-response functions (CRF). © 2014 Wiley Periodicals, Inc. Environ Toxicol 31: 923-936, 2016.
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Affiliation(s)
- Lawei Yang
- Clinical Research Center, Guangdong Medical College, Zhanjiang, Guangdong, 524001, China
| | - Gang Liu
- Clinical Research Center, Guangdong Medical College, Zhanjiang, Guangdong, 524001, China
| | - Ziying Lin
- Clinical Research Center, Guangdong Medical College, Zhanjiang, Guangdong, 524001, China
| | - Yahong Wang
- Clinical Research Center, Guangdong Medical College, Zhanjiang, Guangdong, 524001, China
| | - Huijuan He
- Clinical Research Center, Guangdong Medical College, Zhanjiang, Guangdong, 524001, China
| | - Tie Liu
- Department of Hematology, the First Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, 710061, Shanxi, China
| | - David W Kamp
- Department of Medicine, Northwestern University Feinberg School of Medicine and Jesse Brown VA Medical Center, 240 E. Huron, McGaw M-330, Chicago, Illinois, 60611
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Da Silva MS, Rudkowska I. Dairy nutrients and their effect on inflammatory profile in molecular studies. Mol Nutr Food Res 2015; 59:1249-63. [DOI: 10.1002/mnfr.201400569] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 12/23/2014] [Accepted: 12/29/2014] [Indexed: 12/17/2022]
Affiliation(s)
- Marine S. Da Silva
- Department of Endocrinology and Nephrology; CHU de Québec Research Center; Quebec QC Canada
| | - Iwona Rudkowska
- Department of Endocrinology and Nephrology; CHU de Québec Research Center; Quebec QC Canada
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Li W, Zhou W, Lee DS, Shim SH, Kim YC, Kim YH. Hericirine, a novel anti-inflammatory alkaloid from Hericium erinaceum. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.05.117] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Putra ABN, Nishi K, Shiraishi R, Doi M, Sugahara T. Jellyfish collagen stimulates production of TNF-α and IL-6 by J774.1 cells through activation of NF-κB and JNK via TLR4 signaling pathway. Mol Immunol 2013; 58:32-7. [PMID: 24291243 DOI: 10.1016/j.molimm.2013.11.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 10/11/2013] [Accepted: 11/02/2013] [Indexed: 10/26/2022]
Abstract
We previously reported that jellyfish collagen stimulates both the acquired and innate immune responses. In the acquired immune response, jellyfish collagen enhanced immunoglobulin production by lymphocytes in vitro and in vivo. Meanwhile, in the innate immune response jellyfish collagen promoted cytokine production and phagocytotic activity of macrophages. The facts that jellyfish collagen plays several potential roles in stimulating cytokine production by macrophages have further attracted us to uncover its mechanisms. We herein describe that the cytokine production-stimulating activity of jellyfish collagen was canceled by a Toll-like receptor 4 (TLR4) inhibitor. Moreover, jellyfish collagen stimulated phosphorylation of inhibitor of κBα (IκBα), promoted the translocation of nucleus factor-κB (NF-κB), and activated c-Jun N-terminal kinase (JNK). A JNK inhibitor also abrogated the cytokine production-stimulating activity of jellyfish collagen. These results suggest that jellyfish collagen may facilitate cytokine production by macrophages through activation of NF-κB and JNK via the TLR4 signaling pathways.
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Affiliation(s)
| | - Kosuke Nishi
- Faculty of Agriculture, Ehime University, Matsuyama, Ehime 790-8566, Japan
| | | | | | - Takuya Sugahara
- Faculty of Agriculture, Ehime University, Matsuyama, Ehime 790-8566, Japan; South Ehime Fisheries Research Center, Ehime University, Ainan, Ehime 798-4205, Japan; Food and Health Sciences Research Center, Ehime University, Matsuyama, Ehime 790-8566, Japan.
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12
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The biological activities of protein/oleic acid complexes reside in the fatty acid. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2013; 1834:1125-43. [DOI: 10.1016/j.bbapap.2013.02.041] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 02/18/2013] [Accepted: 02/20/2013] [Indexed: 12/12/2022]
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13
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Brinkmann CR, Thiel S, Otzen DE. Protein-fatty acid complexes: biochemistry, biophysics and function. FEBS J 2013; 280:1733-49. [DOI: 10.1111/febs.12204] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 11/29/2012] [Accepted: 02/12/2013] [Indexed: 02/01/2023]
Affiliation(s)
| | - Steffen Thiel
- Department of Biomedicine, Faculty of Health Sciences; Aarhus University; Denmark
| | - Daniel E. Otzen
- Interdisciplinary Nanoscience Centre (iNANO), Centre for Insoluble Protein Structures (inSPIN), Department of Molecular Biology and Genetics; Aarhus University; Denmark
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14
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Laplante P, Amireault P, Subang R, Dieudé M, Levine JS, Rauch J. Interaction of β2-glycoprotein I with lipopolysaccharide leads to Toll-like receptor 4 (TLR4)-dependent activation of macrophages. J Biol Chem 2011; 286:42494-42503. [PMID: 21965665 DOI: 10.1074/jbc.m111.230383] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
β(2)-Glycoprotein I (β(2)GPI) is an abundant plasma protein that binds to the surface of cells and particles expressing negatively charged lipids, but its physiological role remains unknown. Antibodies to β(2)GPI are found in patients with anti-phospholipid syndrome, a systemic autoimmune disease associated with vascular thrombosis and pregnancy morbidity. Although it has been suggested that anti-β(2)GPI antibodies activate endothelial cells and monocytes by signaling through TLR4, it is unclear how anti-β(2)GPI antibodies and/or β(2)GPI interact with TLR4. A number of mammalian proteins (termed "endogenous Toll-like receptor (TLR) ligands") have been reported to bind to TLR4, but, in most cases, subsequent studies have shown that LPS interaction with these proteins is responsible for TLR activation. We hypothesized that, like other endogenous TLR ligands, β(2)GPI interacts specifically with LPS and that this interaction is responsible for apparent TLR4 activation by β(2)GPI. Here, we show that both LPS and TLR4 are required for β(2)GPI to bind to and activate macrophages. Untreated β(2)GPI stimulated TNF-α production in TLR4-sufficient (but not TLR4-deficient) macrophages. In contrast, neither polymyxin B-treated nor delipidated β(2)GPI stimulated TNF-α production. Furthermore, β(2)GPI bound to LPS in a specific and dose-dependent manner. Finally, untreated β(2)GPI bound to the surface of TLR4-sufficient (but not TLR4-deficient) macrophages. Polymyxin B treatment of β(2)GPI abolished macrophage binding. Our findings suggest a potential new biological activity for β(2)GPI as a protein that interacts specifically with LPS and point to the need to evaluate newly discovered endogenous TLR ligands for potential interactions with LPS.
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Affiliation(s)
- Patrick Laplante
- Division of Rheumatology, Department of Medicine, Research Institute of the McGill University Health Centre, Montreal, Quebec H3G 1A4, Canada
| | - Pascal Amireault
- Division of Rheumatology, Department of Medicine, Research Institute of the McGill University Health Centre, Montreal, Quebec H3G 1A4, Canada
| | - Rebecca Subang
- Division of Rheumatology, Department of Medicine, Research Institute of the McGill University Health Centre, Montreal, Quebec H3G 1A4, Canada
| | - Mélanie Dieudé
- Division of Rheumatology, Department of Medicine, Research Institute of the McGill University Health Centre, Montreal, Quebec H3G 1A4, Canada
| | - Jerrold S Levine
- Section of Nephrology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois 60680; Section of Nephrology, Department of Medicine, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois 60612
| | - Joyce Rauch
- Division of Rheumatology, Department of Medicine, Research Institute of the McGill University Health Centre, Montreal, Quebec H3G 1A4, Canada.
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