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Xu L, Li W, Chen SY, Deng XW, Deng WF, Liu G, Chen YJ, Cao Y. Oenothein B ameliorates hepatic injury in alcoholic liver disease mice by improving oxidative stress and inflammation and modulating the gut microbiota. Front Nutr 2022; 9:1053718. [PMID: 36579073 PMCID: PMC9792150 DOI: 10.3389/fnut.2022.1053718] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/04/2022] [Indexed: 12/14/2022] Open
Abstract
Introduction Alcoholic liver disease (ALD) is a global health problem for which there is no current food and drug administration (FDA)-approved therapy. Oenothein B (OEB) is a macrocyclic dimer ellagic tannin that possesses abundant biological activities including antioxidant, anti-inflammation, antitumor, immunomodulatory, and antimicrobial properties. Materials and methods In this study, the hepatoprotective effect of OEB against ALD was investigated in vivo and in vitro. Results We found that OEB treatment dramatically reduced alcohol-induced hepatic injury, as evidenced by decreased levels of aminotransferases and inflammatory biomarkers and increased antioxidant capacity in OEB-treated groups. Discussion OEB treatment alleviated oxidative stress by upregulating the Keap1/Nrf2 signaling pathway and inhibited inflammation by downregulating the TLR4/NF-κB signaling pathway. Additionally, OEB treatment positively improved alcohol-induced intestinal microbial dysbiosis by modulating the structure and composition of gut microbiota. Interestingly, we observed the increasement of short-chain fatty acid (SCFA) producers (Muribaculaceae) and the decreasement of Gram-negative bacteria (Akkermansia) in the OEB treatment groups, which may contribute to the inhibition of hepatic oxidative stress and inflammation via the gut-liver axis. In summary, our findings indicate that OEB is a promising therapeutic strategy for preventing and treating ALD.
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Affiliation(s)
- Lu Xu
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, Guangdong Research Center for Engineering Technology in Bioactive Natural Products, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Wei Li
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Shenzhen, China
| | - Shu-yi Chen
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, Guangdong Research Center for Engineering Technology in Bioactive Natural Products, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Xi-wen Deng
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, Guangdong Research Center for Engineering Technology in Bioactive Natural Products, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Wei-feng Deng
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, Guangdong Research Center for Engineering Technology in Bioactive Natural Products, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Guo Liu
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, Guangdong Research Center for Engineering Technology in Bioactive Natural Products, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Yun-jiao Chen
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, Guangdong Research Center for Engineering Technology in Bioactive Natural Products, College of Food Science, South China Agricultural University, Guangzhou, China,Yun-jiao Chen,
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, Guangdong Research Center for Engineering Technology in Bioactive Natural Products, College of Food Science, South China Agricultural University, Guangzhou, China,*Correspondence: Yong Cao,
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Hydrolyzable Tannins in the Management of Th1, Th2 and Th17 Inflammatory-Related Diseases. Molecules 2022; 27:molecules27217593. [DOI: 10.3390/molecules27217593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/30/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022] Open
Abstract
Plants rich in hydrolyzable tannins were traditionally used all over the world for a variety of chronic inflammatory disorders, including arthritis, colitis, and dermatitis. However, the knowledge of their immunological targets is still limited though fundamental for their rational use in phytotherapy. The recent advances regarding the pathogenesis of inflammatory-based diseases represent an opportunity to elucidate the pharmacological mechanism of plant-derived metabolites with immunomodulatory activity. This review collects recent articles regarding the role of hydrolyzable tannins and their gut metabolites in Th1, Th2, and Th17 inflammatory responses. In line with the traditional use, rheumatoid arthritis (RA), inflammatory bowel diseases (IBDs), psoriasis, atopic dermatitis (AD), and asthma were the most investigated diseases. A substantial body of in vivo studies suggests that, beside innate response, hydrolyzable tannins may reduce the levels of Th-derived cytokines, including IFN-γ, IL-17, and IL-4, following oral administration. The mode of action is multitarget and may involve the impairment of inflammatory transcription factors (NF-κB, NFAT, STAT), enzymes (MAPKs, COX-2, iNOS), and ion channels. However, their potential impact on pathways with renewed interest for inflammation, such as JAK/STAT, or the modulation of the gut microbiota demands dedicate studies.
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Activation of Extracellular Signal-Regulated Kinase 2 and cAMP Response Element-Binding Protein in Cultured Neurons by the Macrocyclic Ellagitannin Oenothein B. NEUROSCI 2022. [DOI: 10.3390/neurosci3030028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
(1) Background: The findings of our recent in vivo study indicated that the oral administration of oenothein B, a unique macrocyclic ellagitannin, activated extracellular signal-regulated kinase (ERK) 2 and cAMP response element-binding protein (CREB) in the mouse brain. A large hydrophilic oenothein B is unable to reach the brain, suggesting that any metabolite(s) of oenothein B might function in the brain. (2) Results: The addition of oenothein B to the culture medium of rat cortical neurons induced the prompt and significant activation of ERK2 and CREB. (3) Conclusions: The activation of ERK2 and CREB is crucial for synaptic transmission and learning/memory formation in the brain. The present results suggest oenothein B exerts neurotrophic/neuroprotective effects in the brain through the modulation of neuronal signaling pathways, if it reaches the brain.
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Jose SP, M R, S S, Rajan S, Saji S, Narayanan V, S S. Anti-inflammatory effect of Kaba Sura Kudineer (AYUSH approved COVID-19 drug)-A Siddha poly-herbal formulation against lipopolysaccharide induced inflammatory response in RAW-264.7 macrophages cells. JOURNAL OF ETHNOPHARMACOLOGY 2022; 283:114738. [PMID: 34653521 PMCID: PMC8507575 DOI: 10.1016/j.jep.2021.114738] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 10/02/2021] [Accepted: 10/09/2021] [Indexed: 05/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Medicinal importance and potential activity of Siddha herbal formulations have proved over several centuries against a wide range of causative agents as Influenza, Dengue, Chikungunya, and Tuberculosis. The traditional medicine system of Siddha is a valuable therapeutic approach for treating viral respiratory infections like Coronavirus disease 2019 (COVID-19) and can be effectively employed to target the host response and preventive care to boost the immune system. Kaba Sura Kudineer (KSK), an official polyherbal formulation has been used in Siddha traditional medicine for centuries. However, the role of KSK in regulating inflammation and the underlying molecular mechanisms has remained elusive. AIM OF THE STUDY The goal of this study was to evaluate the anti-inflammatory effect of KSK using lipopolysaccharide (LPS) stimulated RAW 264.7 murine macrophage cells. MATERIALS AND METHODS Raw 264.7 murine macrophage cells were used for this study. The Inflammatory mediators and cytokines were measured by enzyme-linked immunosorbent assay (ELISA). The NF-κB nulcear translocation and protein expression of iNOS, COX-2 was analyzed with westernblot. RESULTS KSK supplementation decreased LPS mediated TLR-4 production and secretion of pro-inflammatory mediators and cytokines including IL-6, TNF-α, COX-2 and PGE-2. Moreover, it inhibited the production of nitric oxide (NO) and thereby inhibited the expression of iNOS in the cell. The Western blot analysis further confirmed that KSK strongly prevented the LPS-induced degradation of IκB which is normally required for the activation of NF-κB and hereby suppressed nuclear translocation of NF-κB. The protein expression of iNOS, COX-2 was significantly decreased with the presence of KSK treatment. Results suggested that KSK manipulates its anti-inflammatory effects mainly through blocking the TLR mediated NF-κB signal transduction pathways. CONCLUSIONS Together, this study has proven that KSK could be a potential therapeutic drug for alleviating excessive inflammation in many inflammation-associated diseases like COVID-19.
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Affiliation(s)
- Svenia P Jose
- Department of Biochemistry, St. Thomas College, Palai Kottayam, Kerala, India
| | - Ratheesh M
- Department of Biochemistry, St. Thomas College, Palai Kottayam, Kerala, India.
| | - Sheethal S
- Department of Biochemistry, St. Thomas College, Palai Kottayam, Kerala, India
| | - Sony Rajan
- Department of Biochemistry, St. Thomas College, Palai Kottayam, Kerala, India
| | - Sangeeth Saji
- Department of Biochemistry, St. Thomas College, Palai Kottayam, Kerala, India
| | - Vimal Narayanan
- Siddha Clinical Research Unit SRCU, Safdarjung Hospital, A Unit of Central Council for Research in Siddha, New Delhi, India
| | - Sandya S
- Inorganic and Physical Chemistry, Indian Institute of Science IISc, Bangalore, India
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Lin K, Zhou D, Li M, Meng J, He F, Yang X, Dong D, Wang X, Wu X, Chen X, Hou J. Echinococcus granulosus cyst fluid suppresses inflammatory responses by inhibiting TRAF6 signalling in macrophages. Parasitology 2021; 148:887-894. [PMID: 33775265 PMCID: PMC11010193 DOI: 10.1017/s0031182021000548] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/19/2021] [Accepted: 03/21/2021] [Indexed: 11/07/2022]
Abstract
Echinococcus granulosus sensu lato has complex defence mechanisms that protect it from the anti-parasitic immune response for long periods. Echinococcus granulosus cyst fluid (EgCF) is involved in the immune escape. Nevertheless, whether and how EgCF modulates the inflammatory response in macrophages remains poorly understood. Here, real-time polymerase chain reaction and enzyme-linked immunosorbent assay revealed that EgCF could markedly attenuate the lipopolysaccharide (LPS)-induced production of pro-inflammatory factors including tumour necrosis factor-α, interleukin (IL)-12 and IL-6 but increase the expression of IL-10 at mRNA and protein levels in mouse peritoneal macrophages and RAW 264.7 cells. Mechanically, western blotting and immunofluorescence assay showed that EgCF abolished the activation of nuclear factor (NF)-κB p65, p38 mitogen-activated protein kinase (MAPK) and ERK1/2 signalling pathways by LPS stimulation in mouse macrophages. EgCF's anti-inflammatory role was at least partly contributed by promoting proteasomal degradation of the critical adaptor TRAF6. Moreover, the EgCF-promoted anti-inflammatory response and TRAF6 proteasomal degradation were conserved in human THP-1 macrophages. These findings collectively reveal a novel mechanism by which EgCF suppresses inflammatory responses by inhibiting TRAF6 and the downstream activation of NF-κB and MAPK signalling in both human and mouse macrophages, providing new insights into the molecular mechanisms underlying the E. granulosus-induced immune evasion.
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Affiliation(s)
- Ke Lin
- Department of Immunology, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Di Zhou
- Medical Laboratory, the First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Min Li
- Nursing School of Shihezi University, Shihezi, Xinjiang, China
| | - Jin Meng
- Department of Immunology, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Feiming He
- Department of Immunology, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Xiaofeng Yang
- Department of Immunology, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Dan Dong
- Department of Immunology, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Xian Wang
- Department of Immunology, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Xiangwei Wu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Xueling Chen
- Department of Immunology, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Jun Hou
- Department of Immunology, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
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Okuyama S, Furukawa Y, Yoshimura M, Amakura Y, Nakajima M, Yoshida T. Oenothein B, a Bioactive Ellagitannin, Activates the Extracellular Signal-Regulated Kinase 2 Signaling Pathway in the Mouse Brain. PLANTS 2021; 10:plants10051030. [PMID: 34065522 PMCID: PMC8161343 DOI: 10.3390/plants10051030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/01/2021] [Accepted: 05/17/2021] [Indexed: 12/04/2022]
Abstract
(1) Background: Oenothein B, a cyclic dimeric ellagitannin present in various medicinal plants, has been reported to exert diverse effects that are beneficial for the treatment and prevention of diseases, including cancer and infections. We recently showed that oenothein B also functions in the brain because its oral administration to systemic inflammatory model mice reduced inflammatory responses in the brain and suppressed abnormal behavior. (2) Results: The present in vivo results demonstrated that oenothein B activated extracellular signal-regulated kinase 2 and cAMP response element-binding protein in the brain, both of which play important roles in synaptic transmission and learning/memory in the central nervous system (CNS). (3) Conclusions: These results suggest that oenothein B exerts neuroprotective effects on the CNS by not only its anti-inflammatory activity but also by enhancing neuronal signaling pathways.
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Affiliation(s)
- Satoshi Okuyama
- Department of Pharmaceutical Pharmacology, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama 790-8578, Ehime, Japan; (S.O.); (M.N.)
| | - Yoshiko Furukawa
- Department of Pharmaceutical Pharmacology, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama 790-8578, Ehime, Japan; (S.O.); (M.N.)
- Correspondence: ; Tel.: +89-925-7111; Fax: +89-926-7162
| | - Morio Yoshimura
- Department of Pharmacognosy, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama 790-8578, Ehime, Japan; (M.Y.); (Y.A.); (T.Y.)
| | - Yoshiaki Amakura
- Department of Pharmacognosy, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama 790-8578, Ehime, Japan; (M.Y.); (Y.A.); (T.Y.)
| | - Mitsunari Nakajima
- Department of Pharmaceutical Pharmacology, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama 790-8578, Ehime, Japan; (S.O.); (M.N.)
| | - Takashi Yoshida
- Department of Pharmacognosy, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama 790-8578, Ehime, Japan; (M.Y.); (Y.A.); (T.Y.)
- Department of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
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Li W, Li Z, Peng MJ, Zhang X, Chen Y, Yang YY, Zhai XX, Liu G, Cao Y. Oenothein B boosts antioxidant capacity and supports metabolic pathways that regulate antioxidant defense in Caenorhabditis elegans. Food Funct 2020; 11:9157-9167. [PMID: 33026384 DOI: 10.1039/d0fo01635g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Oenothein B (OEB) has various biological functions, although few studies have focused on its effect on in vivo metabolic phenotypes. In the present study, the systematic antioxidant activity of OEB was evaluated both in vitro and in vivo, and the effect of OEB on metabolic pathways related to antioxidant capacity of Caenorhabditis elegans (C. elegans) was explored. Our findings indicate that OEB exhibits great antioxidant capacity and ability to scavenge free radicals and that OEB treatment can protect RAW 264.7 macrophages from oxidative damage by increasing superoxide dismutase (SOD) activity, catalase (CAT) activity and glutathione (GSH) content and the corresponding gene expression (sod2, cat, gpx1), while decreasing malonic dialdehyde (MDA) content. Moreover, OEB treatment significantly reduced ROS accumulation under oxidative stress conditions and increased glutathione peroxidase (GPx) activity and decreased MDA content in C. elegans. Metabolomics analysis revealed that sixteen out of forty-two significantly altered metabolites were selected as potential biomarkers related to alterations in the antioxidant status of worms, including metabolic pathways involved in amino acid metabolism, taurine and hypotaurine metabolism, lipid metabolism, and purine metabolism. Overall, our results provide new insights into the effects of OEB treatment on antioxidant capacity and metabolism that suggest that OEB could be a potentially good source of natural antioxidants.
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Affiliation(s)
- Wei Li
- College of Food Science, South China Agricultural University, Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, Guangdong Research Center for Engineering Technology in Bioactive Natural Products, Guangzhou 510642, China
| | - Ziyin Li
- Food Safety and Health Research Center, School of Public Health, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Ming-Jun Peng
- Guangzhou Inspection of Food Control, Guangzhou 511400, China
| | - Xiaoying Zhang
- College of Food Science, South China Agricultural University, Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, Guangdong Research Center for Engineering Technology in Bioactive Natural Products, Guangzhou 510642, China
| | - Yunjiao Chen
- College of Food Science, South China Agricultural University, Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, Guangdong Research Center for Engineering Technology in Bioactive Natural Products, Guangzhou 510642, China
| | - Yu-Yu Yang
- Guangzhou Greencream Biotech Co., Ltd, Guangzhou 510663, China
| | | | - Guo Liu
- College of Food Science, South China Agricultural University, Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, Guangdong Research Center for Engineering Technology in Bioactive Natural Products, Guangzhou 510642, China
| | - Yong Cao
- College of Food Science, South China Agricultural University, Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, Guangdong Research Center for Engineering Technology in Bioactive Natural Products, Guangzhou 510642, China
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Wang H, Zhang M, Ma Y, Wang B, Huang H, Liu Y, Shao M, Kang Z. Carbon Dots Derived from Citric Acid and Glutathione as a Highly Efficient Intracellular Reactive Oxygen Species Scavenger for Alleviating the Lipopolysaccharide-Induced Inflammation in Macrophages. ACS APPLIED MATERIALS & INTERFACES 2020; 12:41088-41095. [PMID: 32805964 DOI: 10.1021/acsami.0c11735] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Reactive oxygen species (ROSs), acting as functionalized molecules in intracellular enzyme reactions and intercellular communication of immune response, play vital roles in biological metabolism. However, the inevitably excessive ROS-induced oxidative stress is harmful for organ tissue, causing unexpected local anaphylaxis or inflammation. Here, we demonstrate carbon dots (CDs), made of citric acid and glutathione via one-step hydrothermal method, as a highly efficient intracellular ROS scavenger for alleviating the lipopolysaccharide (LPS)-induced inflammation in macrophage. These CDs have broad-spectrum antioxidant properties and the total antioxidant activity exceeds 51.6% higher than that of the precursor, namely, glutathione, in the same mass concentration. Moreover, their antioxidative performance in macrophage inflammation induced by LPS was investigated, and it was found that CDs can efficiently remove up to 98% of intracellular ROS, notably inhibiting nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) signaling pathway, and decrease the expression level of inflammatory factor IL-12. Our results suggested that CDs can serve as a highly efficient intracellular ROS scavenger and could be employed to cope with oxidative stress-induced diseases.
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Affiliation(s)
- Huibo Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - MengLing Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Yurong Ma
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Bo Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Hui Huang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Yang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Mingwang Shao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Zhenhui Kang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
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Yi G, Li H, Liu M, Ying Z, Zhang J, Liu X. Soybean protein-derived peptides inhibit inflammation in LPS-induced RAW264.7 macrophages via the suppression of TLR4-mediated MAPK-JNK and NF-kappa B activation. J Food Biochem 2020; 44:e13289. [PMID: 32537742 DOI: 10.1111/jfbc.13289] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 04/25/2020] [Accepted: 04/27/2020] [Indexed: 12/15/2022]
Abstract
This study aimed to determine the effect of soybean protein-derived peptides (SBP) on the inhibition of lipopolysaccharide (LPS)-induced RAW264.7 cell inflammation. The mRNA of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-1β (IL-1β), Lymphocyte Antigen 96 (LY96), and nuclear factor-κB (NF-κB) were detected with RT-qPCR. The concentrations of cytokines (TNF-α, IL-6, and IL-1β) secreted were detected by ELISA Kit. The results indicated that SBP inhibited the inflammatory stress induced by LPS in RAW264.7 cells. Western blot analysis was used to examine this anti-inflammatory molecular mechanism. The findings showed that SBP impeded the increase of toll-like receptor 4 activity by restricting LY96, while also inhibiting the mitogen-activated protein kinase-c-Jun N-terminal kinase pathway in cells, as well as LPS-induced NF-κB activation caused by the degradation of nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha (IκBα). Consequently, the release of pro-inflammatory cytokines (TNF-α, IL-6, and IL-1β) was inhibited, preventing LPS-induced inflammation of RAW 264.7 cells. Therefore, this research highlighted the potential application of SBP in the development of anti-inflammatory foods that prevented inflammatory-immune diseases. PRACTICAL APPLICATIONS: Inflammation is the root cause of almost all pathology and is related to many human diseases, including arthritis, obesity, cancer and atherosclerosis. Therefore, the development of products that can regulate and intervene inflammation has a broad application prospect. Soybean protein and soybean peptide have many functional properties, including immunoregulation, anti-inflammatory, anti-oxidation and so on. However, there are still some shortcomings in the development of soy protein supplements, such as solubility and absorption. Compared with soybean protein, derived peptide is easy to digest, and has high solubility. As a good nutritional supplement, the nutritional support of soybean protein-derived peptides may help to reduce inflammation and improve the level of cytokines combined with drugs.
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Affiliation(s)
- Guofu Yi
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU), Beijing, China
| | - He Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU), Beijing, China
| | - Menglan Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU), Beijing, China
| | - Zhiwei Ying
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU), Beijing, China
| | - Jian Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU), Beijing, China
| | - Xinqi Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU), Beijing, China
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10
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Hu S, Hu W, Li Y, Li S, Tian H, Lu A, Wang J. Construction and structure-activity mechanism of polysaccharide nano-selenium carrier. Carbohydr Polym 2020; 236:116052. [DOI: 10.1016/j.carbpol.2020.116052] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/16/2020] [Accepted: 02/20/2020] [Indexed: 12/22/2022]
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Chlojaponilactone B Attenuates Lipopolysaccharide-Induced Inflammatory Responses by Suppressing TLR4-Mediated ROS Generation and NF-κB Signaling Pathway. Molecules 2019; 24:molecules24203731. [PMID: 31623197 PMCID: PMC6832138 DOI: 10.3390/molecules24203731] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 09/27/2019] [Accepted: 10/14/2019] [Indexed: 12/13/2022] Open
Abstract
The lindenane-type sesquiterpenoid chlojaponilactone B (1), isolated from Chloranthus japonicus, has been reported to possess anti-inflammatory properties. The present study aimed to further explore the molecular mechanisms underlying the anti-inflammatory activity of 1. RNA-seq analyses revealed the significant changes in the expression levels of genes related to multiple inflammatory pathways upon treatment of lipopolysaccharide (LPS)-induced RAW 264.7 murine macrophages with 1. Real time PCR (RT-PCR) and Western blotting were used to confirm the modulations in the expression of essential molecules related to inflammatory responses. Compound 1 inhibited toll like receptor 4 (TLR4) and myeloid differentiation factor 88 (MyD88) activation upon LPS stimulation, influencing the expression of NF-κB and pro-inflammatory mediators. Molecular docking studies showed that 1 bound to TLR4 in a manner similar to that of TAK-242, a TLR4 inhibitor. Moreover, our results showed that 1 suppressed inflammatory responses by inhibiting TLR4 and subsequently decreasing reactive oxygen species (ROS) generation, downregulating the NF-κB, thus reducing the expression of the pro-inflammatory cytokines iNOS, NO, COX-2, IL-6 and TNF-α; these effects were similar to those of TAK-242. We proposed that 1 should be considered as a potential anti-inflammatory compound in future research.
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Liu Z, Wang L, Shi L, Chen X, Chang Y, Cao Y, Zhao L. Investigation on the Interaction Behavior Between Oenothein B and Pepsin by Isothermal Titration Calorimetry and Spectral Studies. J Food Sci 2019; 84:2412-2420. [PMID: 31429484 DOI: 10.1111/1750-3841.14678] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 05/11/2019] [Accepted: 05/11/2019] [Indexed: 01/17/2023]
Abstract
Oenothein B (OeB) is a dimeric macrocyclic ellagitannin isolated from Herbs and fruits that have a variety of biological activities. In order to better understand the effect of OeB on the activity of the digestive enzyme pepsin, interactions between OeB and pepsin were investigated in vitro under simulated physiological conditions based on enzyme inhibition studies, fluorescence, isothermal titration calorimetry, CD, and molecular docking. It was found OeB is an effective inhibitor of pepsin, likely acting in a reversible manner through both competitive and noncompetitive inhibition. Fluorescence quenching of pepsin by OeB was a static quenching. CD spectra showed the addition of OeB causes the main chain of pepsin to loosen and expand and the partial β-sheet structure to be converted to a disordered structure. Isothermal titration calorimetry and docking studies revealed the main binding mechanism of OeB and pepsin was through noncovalent interactions, hydrophobic interactions with OeB and the internal hydrophobic group of pepsin, and then hydrogen bonding between OeB and the Val243 and Asp77 residues of pepsin. Noncovalent bonds between OeB and pepsin change the polarity and structure of enzymes, decreasing enzymatic activity. Compared with small molecular polyphenols, OeB has a weaker hydrophobic interaction with pepsin and less effect on the secondary structure of pepsin. These findings are the first direct elucidation of the interactions between the oligomer ellagitannin OeB and pepsin, further contributing to understanding binding between oligomer ellagitannins and digestive enzymes. PRACTICAL APPLICATION: The results of this study indicate that the interaction between OeB and pepsin has a certain inhibitory effect on pepsin. In order to reduce the impact of OeB on human digestion and its own activities, nano-encapsulation technology can be used in the future to protect oligomeric ellagitannin such as OeB.
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Affiliation(s)
- Zitao Liu
- College of Food Science, South China Agricultural Univ., Guangzhou, Guangdong, 510642, PR China
| | - Li Wang
- College of Food Science, South China Agricultural Univ., Guangzhou, Guangdong, 510642, PR China.,Inst. of Food Safety and Nutrition, Jinan Univ., Guangzhou, Guangdong, 510632, PR China
| | - Lei Shi
- Inst. of Food Safety and Nutrition, Jinan Univ., Guangzhou, Guangdong, 510632, PR China
| | - Xun Chen
- Inst. of Food Safety and Nutrition, Jinan Univ., Guangzhou, Guangdong, 510632, PR China
| | - Yanlei Chang
- Inst. of Food Safety and Nutrition, Jinan Univ., Guangzhou, Guangdong, 510632, PR China
| | - Yong Cao
- College of Food Science, South China Agricultural Univ., Guangzhou, Guangdong, 510642, PR China
| | - Lichao Zhao
- College of Food Science, South China Agricultural Univ., Guangzhou, Guangdong, 510642, PR China.,Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China Univ. of Technology, Guangzhou, Guangdong, 510640, PR China
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Calva-Candelaria N, Meléndez-Camargo ME, Montellano-Rosales H, Estrada-Pérez AR, Rosales-Hernández MC, Fragoso-Vázquez MJ, Martínez-Archundia M, Correa-Basurto J, Márquez-Flores YK. Oenothera rosea L´Hér. ex Ait attenuates acute colonic inflammation in TNBS-induced colitis model in rats: in vivo and in silico myeloperoxidase role. Biomed Pharmacother 2018; 108:852-864. [PMID: 30372897 DOI: 10.1016/j.biopha.2018.09.081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 09/10/2018] [Accepted: 09/12/2018] [Indexed: 01/23/2023] Open
Abstract
Oenothera rosea L´Hér. ex Ait is a species traditionally used in the treatment of inflammation, headache, stomach pain, infections, among others. The aim of this study was evaluating the acute anti-inflammatory activity of the aqueous extract of O. rosea by 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis. Rats were randomized into six groups: (I) Sham; (II) EtOH; (III) TNBS; and (IV-VI) 250, 500 and 750 mg/Kg, respectively. The colonic injury was induced (groups III-VI) by intrarectal instillation of 0.25 mL of TNBS (10 mg) in 50% ethanol. Groups I and II received an enema (0.25 mL) of physiological saline solution or 50% ethanol, respectively. Treatments were administered by oral gavage 48, 24 and 1 h prior, and 24 h after the induction. The inflammatory response was assessed considering the macroscopic and microscopic damage, the serum nitric oxide (NO), the colonic IL-1β levels, and the myeloperoxidase (MPO) activity. Moreover, we performed an LC-MS-based metabolite profiling, and a docking on the MPO. Doses of 500 and 750 mg/Kg showed a protective effect in the TNBS-induced colonic damage. This activity was related to the downregulation of evaluated parameters. Also, considering previous reports, 29 metabolites of 91 detected were selected for the docking, of which Isolimonic acid (29) and Kaempferol 3-(2'',4''-diacetylrhamnoside) (10) showed the highest affinity to MPO. The aqueous extract of O. rosea protected the TNBS-induced colonic damage in rats, an effect that could be associated with the presence of polyphenolic compounds, alkaloids, and terpenes; as well as their ability to down-regulate MPO activity.
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Affiliation(s)
- Natalia Calva-Candelaria
- Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Campus Zacatenco, Instituto Politécnico Nacional, Av. Wilfrido Massieu s/n Col. Zacatenco, C.P. 07738, Ciudad de México, Mexico
| | - María Estela Meléndez-Camargo
- Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Campus Zacatenco, Instituto Politécnico Nacional, Av. Wilfrido Massieu s/n Col. Zacatenco, C.P. 07738, Ciudad de México, Mexico
| | - Hortensia Montellano-Rosales
- Departamento de Morfología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala s/n, Col. Santo Tomás, C.P. 11340, Ciudad de México, Mexico
| | - Alan R Estrada-Pérez
- Laboratorio de Desarrollo de Nuevos Fármacos y Productos Biotecnológicos, Laboratorio de Biofísica y Catálisis, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Santo Tomas, C.P. 11340, Ciudad de México, Mexico
| | - Martha C Rosales-Hernández
- Laboratorio de Desarrollo de Nuevos Fármacos y Productos Biotecnológicos, Laboratorio de Biofísica y Catálisis, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Santo Tomas, C.P. 11340, Ciudad de México, Mexico
| | - M Jonathan Fragoso-Vázquez
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala s/n, Col. Santo Tomás, C.P. 11340, Ciudad de México, Mexico
| | - Marlet Martínez-Archundia
- Laboratorio de Desarrollo de Nuevos Fármacos y Productos Biotecnológicos, Laboratorio de Biofísica y Catálisis, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Santo Tomas, C.P. 11340, Ciudad de México, Mexico
| | - José Correa-Basurto
- Laboratorio de Desarrollo de Nuevos Fármacos y Productos Biotecnológicos, Laboratorio de Biofísica y Catálisis, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Santo Tomas, C.P. 11340, Ciudad de México, Mexico
| | - Yazmín K Márquez-Flores
- Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Campus Zacatenco, Instituto Politécnico Nacional, Av. Wilfrido Massieu s/n Col. Zacatenco, C.P. 07738, Ciudad de México, Mexico; Universidad Tecnológica de México, UNITEC MÉXICO, Campus Marina, Av. Marina Nacional 162 Col. Anáhuac Sección I, C.P. 11320, Miguel Hidalgo, Ciudad de México, Mexico.
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Yoshida T, Yoshimura M, Amakura Y. Chemical and Biological Significance of Oenothein B and Related Ellagitannin Oligomers with Macrocyclic Structure. Molecules 2018; 23:E552. [PMID: 29498647 PMCID: PMC6017083 DOI: 10.3390/molecules23030552] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 02/26/2018] [Accepted: 02/26/2018] [Indexed: 12/03/2022] Open
Abstract
In 1990, Okuda et al. reported the first isolation and characterization of oenothein B, a unique ellagitannin dimer with a macrocyclic structure, from the Oenothera erythrosepala leaves. Since then, a variety of macrocyclic analogs, including trimeric-heptameric oligomers have been isolated from various medicinal plants belonging to Onagraceae, Lythraceae, and Myrtaceae. Among notable in vitro and in vivo biological activities reported for oenothein B are antioxidant, anti-inflammatory, enzyme inhibitory, antitumor, antimicrobial, and immunomodulatory activities. Oenothein B and related oligomers, and/or plant extracts containing them have thus attracted increasing interest as promising targets for the development of chemopreventive agents of life-related diseases associated with oxygen stress in human health. In order to better understand the significance of this type of ellagitannin in medicinal plants, this review summarizes (1) the structural characteristics of oenothein B and related dimers; (2) the oxidative metabolites of oenothein B up to heptameric oligomers; (3) the distribution of oenotheins and other macrocyclic analogs in the plant kingdom; and (4) the pharmacological activities hitherto documented for oenothein B, including those recently found by our laboratory.
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Affiliation(s)
- Takashi Yoshida
- College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime 790-8578, Japan.
- Okayama University, Okayama 701-1152, Japan.
| | - Morio Yoshimura
- College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime 790-8578, Japan.
| | - Yoshiaki Amakura
- College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime 790-8578, Japan.
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15
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Lan Y, Wang L, Cao S, Zhong Y, Li Y, Cao Y, Zhao L. Rational design of food-grade polyelectrolyte complex coacervate for encapsulation and enhanced oral delivery of oenothein B. Food Funct 2017; 8:4070-4080. [DOI: 10.1039/c7fo01009e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Controlled release of OeB through GI tract using CPP–CS nanoparticles cross-linked with genipin was achievable.
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Affiliation(s)
- Yaqi Lan
- College of Food Science
- South China Agricultural University
- Guangzhou
- PR China
| | - Li Wang
- College of Food Science
- South China Agricultural University
- Guangzhou
- PR China
| | - Sufang Cao
- College of Food Science
- South China Agricultural University
- Guangzhou
- PR China
| | - Yinger Zhong
- College of Food Science
- South China Agricultural University
- Guangzhou
- PR China
| | - Yunqi Li
- Key Laboratory of Synthetic Rubber & Laboratory of Advanced Power Sources
- Changchun Institute of Applied Chemistry (CIAC)
- Chinese Academy of Sciences
- Changchun
- PR China
| | - Yong Cao
- College of Food Science
- South China Agricultural University
- Guangzhou
- PR China
| | - Lichao Zhao
- College of Food Science
- South China Agricultural University
- Guangzhou
- PR China
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16
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Schepetkin IA, Ramstead AG, Kirpotina LN, Voyich JM, Jutila MA, Quinn MT. Therapeutic Potential of Polyphenols from Epilobium Angustifolium (Fireweed). Phytother Res 2016; 30:1287-97. [PMID: 27215200 DOI: 10.1002/ptr.5648] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 03/27/2016] [Accepted: 04/29/2016] [Indexed: 01/27/2023]
Abstract
Epilobium angustifolium is a medicinal plant used around the world in traditional medicine for the treatment of many disorders and ailments. Experimental studies have demonstrated that Epilobium extracts possess a broad range of pharmacological and therapeutic effects, including antioxidant, anti-proliferative, anti-inflammatory, antibacterial, and anti-aging properties. Flavonoids and ellagitannins, such as oenothein B, are among the compounds considered to be the primary biologically active components in Epilobium extracts. In this review, we focus on the biological properties and the potential clinical usefulness of oenothein B, flavonoids, and other polyphenols derived from E. angustifolium. Understanding the biochemical properties and therapeutic effects of polyphenols present in E. angustifolium extracts will benefit further development of therapeutic treatments from this plant. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Igor A Schepetkin
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, 59717, USA
| | - Andrew G Ramstead
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, 59717, USA
| | - Liliya N Kirpotina
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, 59717, USA
| | - Jovanka M Voyich
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, 59717, USA
| | - Mark A Jutila
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, 59717, USA
| | - Mark T Quinn
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, 59717, USA
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Chiu CP, Liu SC, Tang CH, Chan Y, El-Shazly M, Lee CL, Du YC, Wu TY, Chang FR, Wu YC. Anti-inflammatory Cerebrosides from Cultivated Cordyceps militaris. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:1540-1548. [PMID: 26853111 DOI: 10.1021/acs.jafc.5b05931] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Cordyceps militaris (bei-chong-chaw, northern worm grass) is a precious and edible entomopathogenic fungus, which is widely used in traditional Chinese medicine (TCM) as a general booster for the nervous system, metabolism, and immunity. Saccharides, nucleosides, mannitol, and sterols were isolated from this fungus. The biological activity of C. militaris was attributed to the saccharide and nucleoside contents. In this study, the aqueous methanolic fraction of C. militaris fruiting bodies exhibited a significant anti-inflammatory activity. Bioactivity-guided fractionation of the active fraction led to the isolation of eight compounds, including one new and two known cerebrosides (ceramide derivatives), two nucleosides, and three sterols. Cordycerebroside A (1), the new cerebroside, along with soyacerebroside I (2) and glucocerebroside (3) inhibited the accumulation of pro-inflammatory iNOS protein and reduced the expression of COX-2 protein in LPS-stimulated RAW264.7 macrophages. This is the first study on the isolation of cerebrosides with anti-inflammatory activity from this TCM.
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Affiliation(s)
- Ching-Peng Chiu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University , Kaohsiung 807, Taiwan
| | - Shan-Chi Liu
- Graduate Institute of Basic Medical Science, China Medical University , Taichung 404, Taiwan
| | - Chih-Hsin Tang
- Graduate Institute of Basic Medical Science, China Medical University , Taichung 404, Taiwan
| | - You Chan
- Institute of Microbiology, Chung Shan Medical University , Taichung 402, Taiwan
| | - Mohamed El-Shazly
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, Ain-Shams University , Organization of African Unity Street, Abassia, Cairo 11566, Egypt
| | - Chia-Lin Lee
- Department of Cosmeceutics, China Medical University , Taichung 404, Taiwan
| | - Ying-Chi Du
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University , Kaohsiung 807, Taiwan
| | - Tung-Ying Wu
- Chinese Medicine Research and Development Center, China Medical University Hospital , Taichung 404, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University , Kaohsiung 807, Taiwan
- Cancer Center, Kaohsiung Medical University Hospital , Kaohsiung 80708, Taiwan
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University , Kaohsiung 80708, Taiwan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University , Kaohsiung 80424, Taiwan
| | - Yang-Chang Wu
- School of Pharmacy, College of Pharmacy, China Medical University , Taichung 40402, Taiwan
- Research Center for Chinese Herbal Medicine, China Medical University , Taichung 40402, Taiwan
- Chinese Medicine Research and Development Center, China Medical University Hospital , Taichung 40402, Taiwan
- Center of Molecular Medicine, China Medical University Hospital , Taichung 40402, Taiwan
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18
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Granica S, Piwowarski JP, Kiss AK. Ellagitannins modulate the inflammatory response of human neutrophils ex vivo. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2015; 22:1215-1222. [PMID: 26655403 DOI: 10.1016/j.phymed.2015.10.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 09/28/2015] [Accepted: 10/01/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Tannin-rich plant materials are commonly used in the traditional medicine as external anti-inflammatory, antioxidant and antimicrobial agents. Plant extracts containing significant quantities of tannins are often used in the prevention and treatment of oral cavity diseases such as periodontosis or gingivitis. The contribution of pure ellagitannins to the observed anti-inflammatory activity of tannin-rich remedies is still not resolved. PURPOSE The aim of the present study the study was to establish if ellagitannins and their precursor - pentagalloylglucose (1) can modulate the inflammatory response of ex-vivo stimulated neutrophils. METHODS Human neutrophils were isolated from the buffy coats obtained from healthy volunteers. Neutrophils were cultivated with or without tested compounds. The influence of ellagitannins and 1 on the production and release of pro-inflammatory factors such as elastase, reactive oxygen species, interleukin-8, tumour necrosis factor alpha (TNF-α) and metalloproteinase-9 was evaluated using ELISA sets or chemical methods. The effect on surface expression of toll like receptor 4 (TLR-4) and apoptosis was also checked using flow cytometry. RESULTS The results showed that ellgitannins modulate the inflammatory response of human neutrophils by the inhibition of production and release of chosen cytokines and pro-inflammatory enzymes. By the induction of TNF-α ellagitannins enhance neutrophil apoptosis, which is of interest in the case of chronic inflammation within oral cavity. Ellagitannins also decrease the surface expression of TLR-4 in activated neutrophils. CONCLUSION The results support the traditional use of tannin-rich products in the prevention and treatment of oral cavity diseases. The present study proves the substantial contribution of ellagitannins to the anti-inflammatory activity of tannin-rich medicinal plant materials.
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Affiliation(s)
- Sebastian Granica
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Jakub P Piwowarski
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland.
| | - Anna K Kiss
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
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Granica S, Piwowarski JP, Czerwińska ME, Kiss AK. Phytochemistry, pharmacology and traditional uses of different Epilobium species (Onagraceae): a review. JOURNAL OF ETHNOPHARMACOLOGY 2014; 156:316-346. [PMID: 25196824 DOI: 10.1016/j.jep.2014.08.036] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 08/26/2014] [Accepted: 08/27/2014] [Indexed: 05/29/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Epilobium genus (willowherb) comprises of ca. 200 species of herbaceous plants distributed around the world. Infusions prepared form willowherbs have been traditionally used externally in skin and mucosa infections and in the treatment of benign prostate hyperplasia. Nowadays extracts from different Epilobium species are widely used by patients, however the lack of clinical studies does not allow to fully establish their efficacy. The present review summarizes published data on phytochemistry, ethnopharmacological use and pharmacological studies concerning willowherb species investigated throughout past few decades. MATERIALS AND METHODS Literature survey was performed using Scopus, PubMed, Web of Science and Reaxys databases looking for papers and patents focused on chemical composition and bioactivity of Epilobium species. Systematic research in ethnopharmacological literature in digitalized sources of academic libraries was also carried out. RESULT The chemical composition of different Epilobium species and their bioactivities are described. The detailed information on constituents isolated and detected by chromatographic methods is given. The studies show that polyphenols are main compounds occurring in Epilobium herb among which flavonoids, phenolic acids and tannins (oenothein B and oenothein A) are dominating constituents. The extracts and some isolated compounds from Epilobium sp. were shown to possess antimicrobial, anti-proliferative, anti-inflammatory, analgesic and antioxidative activities. Because many studies suggest that oenothein B as dominating constituent may be responsible for Epilobium sp. pharmacological effects, its documented bioactivities were also described. CONCLUSIONS The pharmacological studies performed on Epilobium justify the traditional use of this species in external and in gastrointestinal inflammations. As far as the treatment of benign prostate hyperplasia (BPH) is considered, in the literature, there are some reports indicating that Epilobium extracts have a beneficial effect for this disorder, but the number of in vitro studies is not sufficient and the in vivo studies are not conclusive or too preliminary to draw a final conclusion about the efficacy of Epilobium preparations. More in vitro, in vivo and clinical studies to confirm this mode of action are strongly needed. Epilobium's extracts have also documented antioxidative and potential anti-inflammatory properties. Oenothein B can be considered as responsible for some of Epilobium pharmacological properties. Because of the lack of clinical data further studies are needed to provide an evidence base for traditional uses of plant materials belonging to the Epilobium genus.
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Affiliation(s)
- Sebastian Granica
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, ul. Banacha 1, 02-097 Warsaw, Poland
| | - Jakub P Piwowarski
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, ul. Banacha 1, 02-097 Warsaw, Poland
| | - Monika E Czerwińska
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, ul. Banacha 1, 02-097 Warsaw, Poland
| | - Anna K Kiss
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, ul. Banacha 1, 02-097 Warsaw, Poland.
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20
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Gutiérrez-Venegas G, Ventura-Arroyo JA, Arreguín-Cano JA, Ostoa-Pérez MF. Flavonoids inhibit iNOS production via mitogen activated proteins in lipoteichoic acid stimulated cardiomyoblasts. Int Immunopharmacol 2014; 21:320-7. [PMID: 24768712 DOI: 10.1016/j.intimp.2014.04.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 03/25/2014] [Accepted: 04/10/2014] [Indexed: 10/25/2022]
Abstract
Infective endocarditis is caused by oral commensal bacteria which are important etiologic agents in this disease and can induce release of nitric oxide (NO), promoting an inflammatory response in the endocardium. In this study, we investigated the properties of kaempherol, epigallocatechin, apigenin, and naringin in embryonic mouse heart cells (H9c2) treated with lipoteichoic acid (LTA) obtained from Streptococcus sanguinis. NO production was measured with the Griess method. Expression of inducible nitric oxide synthase (iNOS) was detected by reverse transcriptase polymerase chain reaction (RT-PCR). In addition, western blot assays and immunofluorescence staining were used to assess translocation of nuclear factor kappa beta (NF-κB), degradation of IκB, and activity of the mitogen activated protein (MAP) kinases extracellular signal-regulated kinase (ERK 1/2), p38, and c-Jun N-terminal kinase (JNK). And the effects of these flavonoids on cell viability were also assessed. Our results showed that flavonoids blocked activation of ERK, JNK, and p38 in cardiomyocytes treated with LTA. Moreover, the flavonoids showed no cytotoxic effects and blocked NF-κB translocation and IκB degradation and inhibited LTA-induced NF-κB promoter activity, iNOS expression and NO production. In conclusion these effects are consistent with some of the observed anti-inflammatory properties of other flavonoids.
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Affiliation(s)
- Gloria Gutiérrez-Venegas
- Laboratorio de Bioquímica de la División de Estudios de Posgrado e Investigación, Facultad de Odontología, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico.
| | - Jairo Agustín Ventura-Arroyo
- Laboratorio de Bioquímica de la División de Estudios de Posgrado e Investigación, Facultad de Odontología, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico
| | - Juan Antonio Arreguín-Cano
- Laboratorio de Bioquímica de la División de Estudios de Posgrado e Investigación, Facultad de Odontología, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico
| | - María Fernanda Ostoa-Pérez
- Laboratorio de Bioquímica de la División de Estudios de Posgrado e Investigación, Facultad de Odontología, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico
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A novel synthetic HTB derivative, BECT inhibits lipopolysaccharide-mediated inflammatory response by suppressing the p38 MAPK/JNK and NF-κB activation pathways. Pharmacol Rep 2014; 66:471-9. [PMID: 24905526 DOI: 10.1016/j.pharep.2013.08.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 08/01/2013] [Accepted: 08/20/2013] [Indexed: 12/31/2022]
Abstract
Activated microglia cells are well recognized as mediators of neuroinflammation, as they release nitric oxide and pro-inflammatory cytokines in various neuroinflammatory diseases. Thus, suppressing microglial activation may alleviate neuroinflammatory and neurodegenerative processes. In the present study, we synthesized and investigated the anti-neuroinflammatory effect of a novel HTB (2-hydroxy-4-trifuoromethylbenzoic acid) derivative in lipopolysaccharide (LPS)-stimulated microglial cells. Among the synthesized derivatives, the BECT [But-2-enedioic acid bis-(2-carboxy-5-trifluoromethyl-phenyl) ester] significantly decreased production of nitric oxide and other pro-inflammatory cytokines including tumor necrosis factor-α, interleukin-1β, and interleukin-6 in microglial cells. BECT also mitigated the expression of inducible nitric oxide synthase and cyclooxygenase-2 at both the mRNA and protein levels. Further mechanistic studies demonstrated that the HTB derivative inhibited phosphorylation of JNK and p38 mitogen-activated protein kinase and nuclear translocation of nuclear factor kappa-B in LPS-stimulated BV-2 microglial cells. Thus BECT, our novel synthesized compound have anti-inflammatory activity in microglial cells, and may have therapeutic potential for treating neuroinflammatory diseases.
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Betulinic acid and betulin ameliorate acute ethanol-induced fatty liver via TLR4 and STAT3 in vivo and in vitro. Int Immunopharmacol 2013; 17:184-90. [DOI: 10.1016/j.intimp.2013.06.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 05/13/2013] [Accepted: 06/11/2013] [Indexed: 02/07/2023]
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23
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Salidroside attenuates LPS-stimulated activation of THP-1 cell-derived macrophages through down-regulation of MAPK/NF-kB signaling pathways. ACTA ACUST UNITED AC 2013; 33:463-469. [PMID: 23904362 DOI: 10.1007/s11596-013-1143-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 07/12/2013] [Indexed: 10/26/2022]
Abstract
Excessive activation of macrophages is implicated in various inflammatory injuries. Salidroside (Sal), one of the main bioactive components of Rhodiola Sachalinensis, has been reported to possess anti-inflammatory activities. This study aimed to examine the effect of Sal on the activation of macrophages and the possible mechanism. The lipopolysaccharide (LPS)-stimulated phrobol 12-myristate 13-acetate (PMA)-differentiated THP-1 macrophage models were established. The changes in the inflammatory profiles of THP-1-derived macrophages were determined. The results showed that Sal significantly decreased the expression of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX2), interleukin-1beta (IL-1β), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) at both mRNA and protein levels in THP-1-derived macrophages, and the effect was dose-depedent. Moreover, NF-κB activation was significantly suppressed and the phosphorylation of ERK, p38 and JNK was substantially down-regulated after Sal treatment. The findings suggested that Sal can suppress the activation of LPS-stimulated PMA-differetiated THP-1 cells, as evidenced by the decreased expression of iNOS, COX2, IL-1β, IL-6 and TNF-α, and the mechanism involves the inhibition of NF-κB activation and the phosphorylation of the MAPK signal pathway.
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24
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Oenothein B suppresses lipopolysaccharide (LPS)-induced inflammation in the mouse brain. Int J Mol Sci 2013; 14:9767-78. [PMID: 23652834 PMCID: PMC3676811 DOI: 10.3390/ijms14059767] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 04/28/2013] [Accepted: 05/02/2013] [Indexed: 01/07/2023] Open
Abstract
Oenothein B has been recently evaluated for its ability to affect inflammatory responses in peripheral tissues. In this study, we examined its effect on the damage to the central nervous system due to systemic inflammation. For this purpose, ICR mice were injected with an intraperitoneal (i.p.) dose of lipopolysaccharide (LPS; 1 mg/kg mouse). When oenothein B was administered per os (p.o.), it suppressed (1) LPS-induced abnormal behavior in open field; (2) LPS-induced microglial activation in the hippocampus and striatum; and (3) LPS-induced cyclooxygenase (COX)-2 production in the hippocampus and striatum of these mice. These results suggest that oenothein B had the ability to reduce neuroinflammation in the brain during systemic inflammation.
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25
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Immunological effects of Oenothein B, an ellagitannin dimer, on dendritic cells. Int J Mol Sci 2012; 14:46-56. [PMID: 23344020 PMCID: PMC3565250 DOI: 10.3390/ijms14010046] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 12/11/2012] [Accepted: 12/12/2012] [Indexed: 11/17/2022] Open
Abstract
Oenothein B is a unique macrocyclic ellagitannin dimer that has been found in various medicinal plants belonging to Onagraceae, Lythraceae, and Myrtaceae, with diverse biological activities. The immunological effects of tannins in terms of cytokine-release from macrophages and monocytes have been discussed, while the effects on other immunocompetent cells have been the subject of minimal investigation. We evaluated the immunomodulatory effects induced by tannin treatment in human dendritic cells (DCs), which play a critical role in the initial immune response, by measuring the changes in cytokine production, cell differentiation, and cell viability. Oenothein B showed significant down-regulation of the expression of cell surface molecules, CD1a and CD83, suggesting the inhibition of DC differentiation and/or maturation. The suppressive effect on DCs was associated with the induction of apoptosis without the activation of caspase-3/7, 8, and 9, and this was supported by the morphological features indicating significant nuclear condensation. Oenothein B also markedly suppressed the production of inflammatory cytokines, such as IL-1β and IL-6, in a dose-dependent manner. These data may, in part, be able to explain the traditional use of tannin-containing medicinal plants for the treatment of a variety of inflammatory diseases, including inflammatory bowel disease, celiac disease, and rheumatoid arthritis.
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26
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Ramstead AG, Schepetkin IA, Quinn MT, Jutila MA. Oenothein B, a cyclic dimeric ellagitannin isolated from Epilobium angustifolium, enhances IFNγ production by lymphocytes. PLoS One 2012; 7:e50546. [PMID: 23226309 PMCID: PMC3511557 DOI: 10.1371/journal.pone.0050546] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2012] [Accepted: 10/24/2012] [Indexed: 11/18/2022] Open
Abstract
Oenothein B is a polyphenol isolated from Epilobium angustifolium and other plant sources, which has been reported to exhibit immunomodulatory properties. Oenothein B is known to activate myeloid cells and induce the production of IL-1 and other cytokines. However, its effects on lymphocytes are unknown. In this report, we show that oenothein B stimulated innate lymphocytes, including bovine and human γδ T cells and NK cells, resulting in either increased CD25 and/or CD69 expression. We also demonstrate that oenothein B enhanced the production of interferon-γ (IFNγ) by bovine and human NK cells alone and in combination with interleukin-18 (IL-18), a response not observed with other commonly studied polyphenols. Furthermore, we demonstrate that oenothein B enhanced the production of IFNγ by human T cells. Since IFNγ contributes to antitumor, antibacterial, and antiviral cell responses, these data suggest an additional mechanism that could account, at least in part, for the immune enhancing properties of oenothein B.
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Affiliation(s)
- Andrew G. Ramstead
- Department of Immunology and Infectious Diseases, Montana State University, Bozeman, Montana, United States of America
| | - Igor A. Schepetkin
- Department of Immunology and Infectious Diseases, Montana State University, Bozeman, Montana, United States of America
| | - Mark T. Quinn
- Department of Immunology and Infectious Diseases, Montana State University, Bozeman, Montana, United States of America
| | - Mark A. Jutila
- Department of Immunology and Infectious Diseases, Montana State University, Bozeman, Montana, United States of America
- * E-mail:
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