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Deepak D, De UK, Sarkar TK, Katoch S, John JK, Sarkar VK. Strategic administration of antioxidant multiminerals and vitamins to transitional buffaloes augments antioxidant and udder defense mechanisms in early lactation. Res Vet Sci 2024; 172:105253. [PMID: 38579632 DOI: 10.1016/j.rvsc.2024.105253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 04/07/2024]
Abstract
The aim of the study was to examine the effects of repeated administrations of antioxidant multiminerals and vitamins in transition buffaloes on udder defense mechanism, antioxidant activity and occurrence of intramammary infection (IMI) in early lactation period. Forty clinically healthy pregnant buffaloes were enrolled 45 days before expected date of calving and randomly allocated into five different supplementation groups (n = 8): only basal ration (control), vitamin E and selenium (VES), multiminerals (MM), ascorbic acid (AA) and chromium (Cr) picolinate in basal diet. The udder defense mechanism was monitored by measuring phagocytic activity (PA), myeloperoxidase (MPO) and nitric oxide (NO) productions in milk leukocytes, antioxidant activity was evaluated by measuring total antioxidant capacity (TAC) in plasma and occurrence of IMI was assessed by milk cytology, bacterial count in milk and visible clinical signs of udder until day 28 post-calving. The results showed that the VES and MM supplementations exhibited significantly higher PA, MPO and NO productions of milk leukocytes till first week of lactation whereas, elevated mean TAC in plasma was maintained from day -7 to 1 of calving in MM supplementation group as compared to control group. Statistically, no significant difference in occurrences of subclinical or clinical IMI was noted across the groups until four weeks of lactation. Taken together, it is concluded that repeated administrations of VES and MM to transition buffaloes could be an effective strategy to maintain good udder health by augmenting milk leukocyte functions and antioxidant status and preventing incidence of IMI in early lactation.
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Affiliation(s)
- D Deepak
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar 243 122, Uttar Pradesh, India; Department of Veterinary Medicine, College of Veterinary and Animal Sciences, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut 250 110, Uttar Pradesh, India
| | - U K De
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar 243 122, Uttar Pradesh, India.
| | - T K Sarkar
- Department of Veterinary Medicine, College of Veterinary and Animal Sciences, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut 250 110, Uttar Pradesh, India
| | - S Katoch
- Department of Veterinary Microbiology, College of Veterinary and Animal Sciences, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut 250 110, Uttar Pradesh, India
| | - J K John
- Department of Veterinary Clinical Complex, College of Veterinary and Animal Sciences, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut 250 110, Uttar Pradesh, India
| | - V K Sarkar
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar 243 122, Uttar Pradesh, India
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2
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Fernández-Rubio C, Rubio-Hernández M, Alcolea V, Burguete-Mikeo A, Nguewa PA, Pérez-Silanes S. Promising aryl selenoate derivatives as antileishmanial agents and their effects on gene expression. Antimicrob Agents Chemother 2024; 68:e0155923. [PMID: 38497616 PMCID: PMC10994822 DOI: 10.1128/aac.01559-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 02/20/2024] [Indexed: 03/19/2024] Open
Abstract
Leishmaniasis remains one of the main public health problems worldwide, with special incidence in the poorest populations. Selenium and its derivatives can be potent therapeutic options against protozoan parasites. In this work, 17 aryl selenoates were synthesized and screened against three species of Leishmania (Leishmania major, Leishmania amazonensis, and Leishmania infantum). Initial screening in promastigotes showed L. infantum species was more sensitive to selenoderivatives than the others. The lead Se-(2-selenocyanatoethyl) thiophene-2-carboselenoate (16) showed a half-maximal effective concentration of 3.07 µM and a selectivity index > 32.57 against L. infantum promastigotes. It was also the most effective of all 17 compounds, decreasing the infection ratio by 90% in L. infantum-infected macrophages with amastigotes at 10 µM. This aryl selenoate did not produce a hemolytic effect on human red blood cells at the studied doses (10-100 µM). Furthermore, the gene expression of infected murine macrophages related to cell death, the cell cycle, and the selenoprotein synthesis pathway in amastigotes was altered, while no changes were observed in their murine homologs, supporting the specificity of Compound 16 against the parasite. Therefore, this work reveals the possible benefits of selenoate derivatives for the treatment of leishmaniasis.
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Affiliation(s)
- Celia Fernández-Rubio
- ISTUN Institute of Tropical Health, Department of Microbiology and Parasitology, Universidad de Navarra, IdiSNA (Navarra Institute for Health Research), Navarra, Spain
| | - Mercedes Rubio-Hernández
- ISTUN Institute of Tropical Health, Department of Pharmaceutical Sciences, Universidad de Navarra, IdiSNA (Navarra Institute for Health Research), Pamplona, Spain
| | - Verónica Alcolea
- ISTUN Institute of Tropical Health, Department of Pharmaceutical Sciences, Universidad de Navarra, IdiSNA (Navarra Institute for Health Research), Pamplona, Spain
| | - Aroia Burguete-Mikeo
- ISTUN Institute of Tropical Health, Department of Microbiology and Parasitology, Universidad de Navarra, IdiSNA (Navarra Institute for Health Research), Navarra, Spain
| | - Paul A. Nguewa
- ISTUN Institute of Tropical Health, Department of Microbiology and Parasitology, Universidad de Navarra, IdiSNA (Navarra Institute for Health Research), Navarra, Spain
| | - Silvia Pérez-Silanes
- ISTUN Institute of Tropical Health, Department of Pharmaceutical Sciences, Universidad de Navarra, IdiSNA (Navarra Institute for Health Research), Pamplona, Spain
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3
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Kuang H, Yang Y, Luo H, Lv X. The impact of three carbapenems at a single-day dose on intestinal colonization resistance against carbapenem-resistant Klebsiella pneumoniae. mSphere 2023; 8:e0047923. [PMID: 38009993 PMCID: PMC10732052 DOI: 10.1128/msphere.00479-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 10/12/2023] [Indexed: 11/29/2023] Open
Abstract
IMPORTANCE The intestinal colonization of carbapenem-resistant Klebsiella pneumoniae (CRKP) is an important source of clinical infection. Our research showed that even single-day dose use of carbapenems caused CRKP colonization and continuous bacterial shedding, which reminds clinical doctors to prescribe carbapenems cautiously. Whenever possible, ertapenem should be the preferred choice over other carbapenems especially when the identified or highly suspected pathogens can be effectively targeted by ertapenem.
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Affiliation(s)
- Huan Kuang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, China
| | - Yongqiang Yang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, China
| | - Huan Luo
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, China
- Center for Pathogen Research, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoju Lv
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, China
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Ghosh R, Dey R, Sawoo R, Bishayi B. Simultaneous neutralization of TGF-β and IL-6 attenuates Staphylococcus aureus-induced arthritic inflammation through differential modulation of splenic and synovial macrophages. Scand J Immunol 2023; 97:e13252. [PMID: 36597222 DOI: 10.1111/sji.13252] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 11/11/2022] [Accepted: 12/31/2022] [Indexed: 01/05/2023]
Abstract
Septic arthritis is a joint disease caused by Staphylococcus aureus. Different macrophage populations contribute in various ways to control blood-borne infections and induce inflammatory responses. Macrophage tissue-resident niche is necessary for the suppression of chronic inflammation and may contribute to the pathogenesis of septic arthritis. Thus, to obtain a resolution of the disease and restoration of synovial homeostasis, it needs the activation of macrophages that further regulate the inflammatory consequences. The aim of this study was to find out the mechanism by which neutralization of transforming growth factor-beta (TGF-β) and/or interleukin (IL)-6 after induction of septic arthritis could alter the specific macrophage responses in spleen and synovial joints via different cytokines (osteoprotegerin (OPG), osteopontin (OPN), IL-10, IL-12 and CXCL8) cross-talking, and how the response could be modulated by reactive oxygen species vs antioxidant enzyme activities. Dual neutralization of TGF-β and IL-6 is notably effective in eliciting splenic and synovial tissue-resident macrophage responses. Synovial macrophage-derived IL-10 can elicit protection against septic arthritis via regulating receptor-activated nuclear factor Kappa-B ligand (RANKL)/OPG interaction. They also reduced oxidative stress by increasing the activity of antioxidant enzymes including SOD and catalase. Histopathological analysis revealed that dual neutralization of TGF-β and IL-6 prevented bone destruction and osteoclastic activity in septic arthritis by promoting the differential functional response of the splenic and synovial macrophages. Additionally, the macrophage-derived IL-10 can elicit protection against S. aureus-induced septic arthritis via regulating RANKL/OPG interaction. Further studies on STAT3 and STAT4 are needed for the understanding of such cross-talking in resident macrophages of arthritic mice.
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Affiliation(s)
- Rituparna Ghosh
- Immunology Laboratory, Department of Physiology, University of Calcutta, University Colleges of Science and Technology, Calcutta, West Bengal, India
| | - Rajen Dey
- Immunology Laboratory, Department of Physiology, University of Calcutta, University Colleges of Science and Technology, Calcutta, West Bengal, India
| | - Ritasha Sawoo
- Immunology Laboratory, Department of Physiology, University of Calcutta, University Colleges of Science and Technology, Calcutta, West Bengal, India
| | - Biswadev Bishayi
- Immunology Laboratory, Department of Physiology, University of Calcutta, University Colleges of Science and Technology, Calcutta, West Bengal, India
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Campo-Sabariz J, García-Vara A, Moral-Anter D, Briens M, Hachemi MA, Pinloche E, Ferrer R, Martín-Venegas R. Hydroxy-Selenomethionine, an Organic Selenium Source, Increases Selenoprotein Expression and Positively Modulates the Inflammatory Response of LPS-Stimulated Macrophages. Antioxidants (Basel) 2022; 11:antiox11101876. [PMID: 36290599 PMCID: PMC9598155 DOI: 10.3390/antiox11101876] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/17/2022] [Accepted: 09/17/2022] [Indexed: 11/16/2022] Open
Abstract
The role of 2-hydroxy-(4-methylseleno)butanoic acid (OH-SeMet), a form of organic selenium (Se), in selenoprotein synthesis and inflammatory response of THP1-derived macrophages stimulated with lipopolysaccharide (LPS) has been investigated. Glutathione peroxidase (GPX) activity, GPX1 gene expression, selenoprotein P (SELENOP) protein and gene expression, and reactive oxygen species (ROS) production were studied in Se-deprived conditions (6 and 24 h). Then, macrophages were supplemented with OH-SeMet for 72 h and GPX1 and SELENOP gene expression were determined. The protective effect of OH-SeMet against oxidative stress was studied in H2O2-stimulated macrophages, as well as the effect on GPX1 gene expression, oxidative stress, cytokine production (TNFα, IL-1β and IL-10), and phagocytic and killing capacities after LPS stimulation. Se deprivation induced a reduction in GPX activity, GPX1 gene expression, and SELENOP protein and gene expression at 24 h. OH-SeMet upregulated GPX1 and SELENOP gene expression and decreased ROS production after H2O2 treatment. In LPS-stimulated macrophages, OH-SeMet upregulated GPX1 gene expression, enhanced phagocytic and killing capacities, and reduced ROS and cytokine production. Therefore, OH-SeMet supplementation supports selenoprotein expression and controls oxidative burst and cytokine production while enhancing phagocytic and killing capacities, modulating the inflammatory response, and avoiding the potentially toxic insult produced by highly activated macrophages.
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Affiliation(s)
- Joan Campo-Sabariz
- Departament de Bioquímica i Fisiologia, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), 08028 Barcelona, Spain
| | - Adriana García-Vara
- Departament de Bioquímica i Fisiologia, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), 08028 Barcelona, Spain
| | - David Moral-Anter
- Departament de Bioquímica i Fisiologia, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), 08028 Barcelona, Spain
| | | | | | | | - Ruth Ferrer
- Departament de Bioquímica i Fisiologia, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), 08028 Barcelona, Spain
| | - Raquel Martín-Venegas
- Departament de Bioquímica i Fisiologia, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), 08028 Barcelona, Spain
- Correspondence:
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Markley RL, Restori KH, Katkere B, Sumner SE, Nicol MJ, Tyryshkina A, Nettleford SK, Williamson DR, Place DE, Dewan KK, Shay AE, Carlson BA, Girirajan S, Prabhu KS, Kirimanjeswara GS. Macrophage Selenoproteins Restrict Intracellular Replication of Francisella tularensis and Are Essential for Host Immunity. Front Immunol 2021; 12:701341. [PMID: 34777335 PMCID: PMC8586653 DOI: 10.3389/fimmu.2021.701341] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 09/24/2021] [Indexed: 12/13/2022] Open
Abstract
The essential micronutrient Selenium (Se) is co-translationally incorporated as selenocysteine into proteins. Selenoproteins contain one or more selenocysteines and are vital for optimum immunity. Interestingly, many pathogenic bacteria utilize Se for various biological processes suggesting that Se may play a role in bacterial pathogenesis. A previous study had speculated that Francisella tularensis, a facultative intracellular bacterium and the causative agent of tularemia, sequesters Se by upregulating Se-metabolism genes in type II alveolar epithelial cells. Therefore, we investigated the contribution of host vs. pathogen-associated selenoproteins in bacterial disease using F. tularensis as a model organism. We found that F. tularensis was devoid of any Se utilization traits, neither incorporated elemental Se, nor exhibited Se-dependent growth. However, 100% of Se-deficient mice (0.01 ppm Se), which express low levels of selenoproteins, succumbed to F. tularensis-live vaccine strain pulmonary challenge, whereas 50% of mice on Se-supplemented (0.4 ppm Se) and 25% of mice on Se-adequate (0.1 ppm Se) diet succumbed to infection. Median survival time for Se-deficient mice was 8 days post-infection while Se-supplemented and -adequate mice was 11.5 and >14 days post-infection, respectively. Se-deficient macrophages permitted significantly higher intracellular bacterial replication than Se-supplemented macrophages ex vivo, corroborating in vivo observations. Since Francisella replicates in alveolar macrophages during the acute phase of pneumonic infection, we hypothesized that macrophage-specific host selenoproteins may restrict replication and systemic spread of bacteria. F. tularensis infection led to an increased expression of several macrophage selenoproteins, suggesting their key role in limiting bacterial replication. Upon challenge with F. tularensis, mice lacking selenoproteins in macrophages (TrspM) displayed lower survival and increased bacterial burden in the lung and systemic tissues in comparison to WT littermate controls. Furthermore, macrophages from TrspM mice were unable to restrict bacterial replication ex vivo in comparison to macrophages from littermate controls. We herein describe a novel function of host macrophage-specific selenoproteins in restriction of intracellular bacterial replication. These data suggest that host selenoproteins may be considered as novel targets for modulating immune response to control a bacterial infection.
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Affiliation(s)
- Rachel L. Markley
- Pathobiology Graduate Program, The Pennsylvania State University, University Park, PA, United States,Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States,Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Katherine H. Restori
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States
| | - Bhuvana Katkere
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States
| | - Sarah E. Sumner
- Pathobiology Graduate Program, The Pennsylvania State University, University Park, PA, United States,Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States
| | - McKayla J. Nicol
- Pathobiology Graduate Program, The Pennsylvania State University, University Park, PA, United States,Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States
| | - Anastasia Tyryshkina
- Neuroscience Graduate Program, Huck Institute of the Life Sciences, The Pennsylvania State University, University Park, PA, United States,Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, United States
| | - Shaneice K. Nettleford
- Pathobiology Graduate Program, The Pennsylvania State University, University Park, PA, United States,Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States
| | - David R. Williamson
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States
| | - David E. Place
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States,Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Kalyan K. Dewan
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States,Department of Infectious Diseases, The University of Georgia, Athens, GA, United States
| | - Ashley E. Shay
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States,Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, United States
| | - Bradley A. Carlson
- Office of Research Support, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Santhosh Girirajan
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, United States
| | - K. Sandeep Prabhu
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States,Center for Molecular Immunology and Infectious Disease, The Pennsylvania State University, University Park, PA, United States
| | - Girish S. Kirimanjeswara
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, United States,Center for Molecular Immunology and Infectious Disease, The Pennsylvania State University, University Park, PA, United States,*Correspondence: Girish S. Kirimanjeswara,
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7
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Xia X, Zhang X, Liu M, Duan M, Zhang S, Wei X, Liu X. Toward improved human health: efficacy of dietary selenium on immunity at the cellular level. Food Funct 2021; 12:976-989. [PMID: 33443499 DOI: 10.1039/d0fo03067h] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Selenium, an essential trace element in the body, participates in various biological processes in the form of selenoproteins. In humans, a suitable concentration of selenium is essential for maintaining normal cellular function. Decreased levels of selenoproteins can lead to obstruction of the normal physiological functions of tissues and cells and even death. In addition, the level of selenium in the body affects cellular immunity, humoral immunity, and the balance between type 2 and type 1 helper T cells. Selenium can affect the immune function of the body through the reactive oxygen species (ROS), NF-κB, ferroptosis and NRF2 pathways. This paper reviews the immune effect of selenium on the body and the process of signal transduction and aims to serve as a reference for follow-up studies of immune function and research on the development of new selenium compounds and active targets.
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Affiliation(s)
- Xiaojing Xia
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, Henan, PR China.
| | - Xiulin Zhang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, Shanxi, PR China
| | - Mingcheng Liu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, Henan, PR China.
| | - Mingyuan Duan
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, Henan, PR China.
| | - Shanshan Zhang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, Henan, PR China.
| | - Xiaobing Wei
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, Henan, PR China.
| | - Xingyou Liu
- Xinxiang University, Xinxiang 453003, Henan, PR China.
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Okamoto N, Ohama H, Matsui M, Fukunishi S, Higuchi K, Asai A. Hepatic F4/80 + CD11b + CD68 - cells influence the antibacterial response in irradiated mice with sepsis by Enterococcus faecalis. J Leukoc Biol 2021; 109:943-952. [PMID: 33899953 DOI: 10.1002/jlb.4a0820-550rr] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 12/15/2022] Open
Abstract
Gut-associated sepsis is a major problem in patients undergoing abdominal radiation therapy; the majority of pathogens causing this type of sepsis are translocated from the gut microbiota. While treating sepsis, bacterial clearance must be achieved to ensure patient survival, and the hepatic immune response is responsible for this process. In particular, Kupffer cells play a crucial role in the hepatic immune response against infectious agents. Recently, two populations of Kupffer cells have been described: liver-resident macrophages (Mϕ) (F4/80+ CD11b- CD68+ cells) and hepatic Mϕ derived from circulating monocytes (F4/80+ CD11b+ CD68- cells). We examined the properties of both types of hepatic Mϕ obtained from irradiated and normal mice and their role in sepsis. Hepatic F4/80+ CD11b- CD68+ cells from both normal and irradiated mice did not show any antibacterial activity. However, F4/80+ CD11b+ CD68- cells from normal mice behaved as effector cells against sepsis by Enterococcus faecalis, although those from irradiated mice lost this ability. Moreover, hepatic F4/80+ CD11b+ CD68- cells from normal infected mice were shown to be IL-12+ IL-10- CD206- CCL1- (considered M1Mϕ), and hepatic F4/80+ CD11b- CD68+ cells from the same mice were shown to be IL-12- IL-10+ CD206+ CCL1- (considered M2aMϕ). When normal mice were exposed to radiation, hepatic F4/80+ CD11b+ CD68- cells altered their phenotype to IL-12- IL-10+ CD206- CCL1+ (considered M2bMϕ), independent of infection, but hepatic F4/80+ CD11b- CD68+ cells remained IL-12- IL-10+ CD206+ CCL1- (M2aMϕ). In addition, hepatic F4/80+ CD11b+ CD68- cells from irradiated mice acquired antibacterial activity upon treatment with CCL1 antisense oligodeoxynucleotides. Therefore, the characteristics of hepatic F4/80+ CD11b+ CD68- cells play a key role in the antibacterial response against gut-associated sepsis.
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Affiliation(s)
- Norio Okamoto
- 2nd Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan
| | - Hideko Ohama
- 2nd Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan
| | - Masahiro Matsui
- 2nd Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan
| | - Shinya Fukunishi
- 2nd Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan
| | - Kazuhide Higuchi
- 2nd Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan
| | - Akira Asai
- 2nd Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan
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Żarczyńska K, Sobiech P, Tobolski D, Mee JF, Illek J. Effect of a single, oral administration of selenitetriglycerides, at two dose rates, on blood selenium status and haematological and biochemical parameters in Holstein-Friesian calves. Ir Vet J 2021; 74:11. [PMID: 33892796 PMCID: PMC8067295 DOI: 10.1186/s13620-021-00192-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 04/15/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Selenitetriglycerides are biologically active, organic forms of selenium formed as a result of the modification of selenic acid and sunflower oil. Studies in rats have shown that they are well absorbed and of low toxicity. There are no published studies on selenitetriglycerides supplementation in calves. RESULTS In this study, selenitetriglycerides were administered once orally on the 2nd day of life at a dose of 0.5 or 1 mg Se/kg body weight to each of six Holstein-Friesian calves while six control calves were not supplemented. Blood for determination of selenium concentration, glutathione peroxidase activity, haematological parameters, aspartate aminotransferase, creatine kinase, and lactate dehydrogenase activities and glucose, total protein, albumin, triglycerides, cholesterol, urea, and creatinine concentration was collected before supplementation (day 0) and 1, 2, 5, 10 and 14 days after supplementation. Selenitetriglycerides administration increased (P < 0.01) serum selenium concentration in supplemented calves as early as day1, from a mean of 63.4 to 184.22 µg/l in calves receiving selenium at a dose of 0.5 mg/kg BW, and from 63.17 to 200.33 µg/l in calves receiving 1 mg/kg. Serum selenium concentrations remained significantly higher compared to the control group throughout the experiment. Glutathione peroxidase activity was higher in supplemented than control calves, significantly so in animals receiving the 1 mg/kg dose of Se on the 10th and 14th days (P < 0.05). There were no significant differences in the haematological and biochemical parameters between the groups. CONCLUSIONS This experiment showed that supplementation with selenitetriglycerides could significantly improve blood selenium status in calves without adverse effects on haematological or biochemical parameters. These findings are essential prerequisites for future studies on selenitetriglycerides supplementation to manage clinical selenium deficiency in calves.
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Affiliation(s)
- Katarzyna Żarczyńska
- Department and Clinic of Internal Diseases, Faculty of Veterinary Medicine, University of Warmia and Mazury, 10-957, Olsztyn, Poland.
| | - Przemysław Sobiech
- Department and Clinic of Internal Diseases, Faculty of Veterinary Medicine, University of Warmia and Mazury, 10-957, Olsztyn, Poland
| | - Dawid Tobolski
- Department and Clinic of Internal Diseases, Faculty of Veterinary Medicine, University of Warmia and Mazury, 10-957, Olsztyn, Poland
| | - John F Mee
- Animal and Bioscience Research Department, Teagasc, Moorepark Research Centre, Fermoy, Co, P61 C997, Cork, Ireland
| | - Josef Illek
- Clinical Laboratory for Large Animals, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences, 612 42, Brno, Czech Republic
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10
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Dahou S, Smahi MCE, Nouari W, Dahmani Z, Benmansour S, Ysmail-Dahlouk L, Miliani M, Yebdri F, Fakir N, Laoufi MY, Chaib-Draa M, Tourabi A, Aribi M. L-Threoascorbic acid treatment promotes S. aureus-infected primary human endothelial cells survival and function, as well as intracellular bacterial killing, and immunomodulates the release of IL-1β and soluble ICAM-1. Int Immunopharmacol 2021; 95:107476. [PMID: 33676147 DOI: 10.1016/j.intimp.2021.107476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Vitamin C (ascorbic acid, AscH2) has been shown to enhance immunity. Here, we studied its immunomodulatory effect on human endothelial cells (ECs) during S. aureus infection. MATERIALS AND METHODS The ex vivo effects of AscH2 were performed on primary human umbilical vein endothelial cells (HUVECs) infected or not with S. aureus. RESULTS AscH2 treatment induced a marked downregulation of nitric oxide (NO) production and a moderate upregulation of arginase activity in S. aureus-infected HUVECs (respectively, p < 0.05 and p > 0.05). Although the upregulated release levels of soluble intercellular adhesion molecular 1 (sICAM-1/sCD54) and sE-selectin (sCD62E) molecules were not significantly different between treated and untreated S. aureus-infected HUVECs, AscH2 treatment induced reversing effect on sICAM-1 release when comparing to uninfected control HUVECs. Moreover, AscH2 treatment appears to have a significant effect on preventing HUVEC necrosis induced by S. aureus infection (p < 0.05). Furthermore, AscH2 treatment induced a significant upregulation of cell protective redox biomarker in S. aureus-infected, as shown by superoxide dismutase (SOD) activity (p < 0.05), but not by catalase activity (p > 0.05). Additionally, S. aureus infection markedly downregulated total bound calcium ions (bCa2+) levels as compared to control HUVECs, whereas, AscH2 treatment induced a slight upregulation of bCa2+ levels in infected HUVECs as compared to infected and untreated HUVECs (p > 0.05). On the other hand, AscH2 treatment downregulated increased total cellular cholesterol content (tccCHOL) levels in HUVECs induced by S. aureus infection (p < 0.05). In addition, AscH2 treatment markedly reversed S. aureus effect on upregulation of intracellular glucose (iGLU) levels within infected HUVECs (p < 0.05). Moreover, AscH2 treatment significantly downregulated S. aureus growth (p < 0.05), and significantly upregulated bacterial internalization and intracellular killing by HUVECs (p < 0.05), as well as their cell cycle activation (p < 0.01). Finally, AscH2 treatment has a slight effect on the production of interleukin 6 (IL-6), but induced a marked downregulation of that of IL-1β in S. aureus-infected HUVECs (respectively, p > 0.05, and p < 0.05). CONCLUSIONS Our outcomes demonstrated that, during S. aureus infection, AscH2 treatment promotes human ECs survival and function, as well as prevents inflammatory response exacerbation, while inducing bactericidal activity.
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Affiliation(s)
- Sara Dahou
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Mohammed Chems-Eddine Smahi
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria; Neonatal Department of Specialized Maternal and Child Hospital of Tlemcen, 13000, Tlemcen, Algeria
| | - Wafa Nouari
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Zoheir Dahmani
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Souheila Benmansour
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria; Neonatal Department of Specialized Maternal and Child Hospital of Tlemcen, 13000, Tlemcen, Algeria
| | - Lamia Ysmail-Dahlouk
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Maroua Miliani
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Fadela Yebdri
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Nassima Fakir
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Mohammed Yassine Laoufi
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria; Neonatal Department of Specialized Maternal and Child Hospital of Tlemcen, 13000, Tlemcen, Algeria
| | - Mouad Chaib-Draa
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Amina Tourabi
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Mourad Aribi
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria.
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11
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Han NR, Kim HJ, Lee JS, Kim HY, Moon PD, Kim HM, Jeong HJ. The immune-enhancing effect of anthocyanin-fucoidan nanocomplex in RAW264.7 macrophages and cyclophosphamide-induced immunosuppressed mice. J Food Biochem 2021; 45:e13631. [PMID: 33528053 DOI: 10.1111/jfbc.13631] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 12/08/2020] [Accepted: 01/11/2021] [Indexed: 11/30/2022]
Abstract
Aronia, a healthy fruit well known as black chokeberry, has health-promoting effects on hypertension, oxidative stress, and diabetes. Despite many reports of bioactivities of aronia, there is little scientific research on the potential for immune-enhancement. So, anthocyanin-fucoidan nanocomplex (AFNC, a nanocomplex of aronia extract and fucoidan) has been developed to improve immune-enhancement. This study aimed to identify immunomodulatory effects and underlying mechanisms of AFNC using RAW264.7 macrophages and cyclophosphamide-induced immunosuppressed mice. As a result, AFNC-treated RAW264.7 macrophages elevated the production of IL-2, IL-6, tumor necrosis factor (TNF)-α, and nitric oxide (NO). AFNC-enhanced inducible NO synthase expression via nuclear factor-κB signaling pathways. AFNC dose-dependently increased levels of IL-2, IL-6, TNF-α, IL-10, IL-12, interferon-γ, or IL-4 in the serum and spleen of immunosuppressed mice. Taken together, AFNC encourages the immune-enhancing activity through immunostimulatory cytokine production by activation of macrophage. Therefore, these results suggest that AFNC is useful for immunodeficiency-related disorders. PRACTICAL APPLICATIONS: In these days of prevalence of infectious diseases, individual immunity is very important. AFNC has the immune-enhancing effects through immunostimulatory cytokine production by activation of macrophage. Therefore, AFNC could be widely applied to ameliorate a variety of diseases caused by immunosuppression such as infectious diseases.
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Affiliation(s)
- Na-Ra Han
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Hyeong-Jin Kim
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, 02447, Korea
| | - Jin Soo Lee
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Hee-Yun Kim
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Phil-Dong Moon
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea.,Center for Converging Humanities, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Hyung-Min Kim
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Hyun-Ja Jeong
- Biochip Research Center, Hoseo University, Asan, 31499, Republic of Korea.,Division of Food and Pharmaceutical Engineering, Hoseo University, Asan, Chungnam, Republic of Korea
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12
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Ala M, Kheyri Z. The rationale for selenium supplementation in inflammatory bowel disease: A mechanism-based point of view. Nutrition 2021; 85:111153. [PMID: 33578241 DOI: 10.1016/j.nut.2021.111153] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/19/2020] [Accepted: 01/05/2021] [Indexed: 02/07/2023]
Abstract
Management of inflammatory bowel disease (IBD) has always been a challenge for physicians. Current treatment protocols may cause numerous adverse effects. Selenium is known for its putative antiinflammatory properties. Selenium is needed for the biosynthesis of enzymatically active selenoproteins, which contribute to antioxidative defense, and effective function of immune systems. Several studies have shown that patients with IBD have a lower selenium level compared to healthy subjects. Hence, experimental studies mimicking ulcerative colitis and Crohn's disease investigated the effect of selenium supplementation on IBD. Previous studies indicated the following: 1) Selenoproteins can curb the inflammatory response and attenuate oxidative stress. This antiinflammatory property caused remission in animal models of colitis. 2) Selenium supports protective gut microbiota, which indirectly improves management of IBD. 3) Selenium may block some of the predominant tumorigenesis pathways proposed in colitis-associated colorectal cancer. 4) Selenium supplementation showed promising results in preliminary clinical studies, particularly in patients with selenium deficiency. While selenium supplementation seems to be beneficial for IBD, clinical studies have remained too preliminary in this regard. Randomized clinical trials are needed to measure the short-term and long-term effects of selenium on both active and quiescent IBD, particularly in patients with IBD who have documented selenium deficiency.
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Affiliation(s)
- Moein Ala
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Zahedin Kheyri
- Baharloo Hospital, Tehran University of Medical Sciences, Tehran, Iran
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13
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Dahmani Z, Addou-Klouche L, Gizard F, Dahou S, Messaoud A, Chahinez Djebri N, Benaissti MI, Mostefaoui M, Terbeche H, Nouari W, Miliani M, Lefranc G, Fernandez A, Lamb NJ, Aribi M. Metformin partially reverses the inhibitory effect of co-culture with ER-/PR-/HER2+ breast cancer cells on biomarkers of monocyte antitumor activity. PLoS One 2020; 15:e0240982. [PMID: 33108409 PMCID: PMC7591052 DOI: 10.1371/journal.pone.0240982] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 10/06/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Immune activities of monocytes (MOs) can be altered within the microenvironment of solid malignancies, including breast cancer. Metformin (1,1-dimethylbiguanide hydrochloride, MET), has been shown to decrease tumor cell proliferation, but its effects have yet to be explored with respect to MOs (monocytes) activity during their crosstalk with breast cancer cells. Here, we investigated the effects of MET on overall phenotypic functional activities, including cellular immunometabolism and protective redox signaling based-biomarkers, intracellular free calcium ions (ifCa2+), phagocytosis and co-operative cytokines (IFN-γ and IL-10) of autologous MOs before and during their interplay with primary ER-/PR-/HER2+ breast cancer cells. METHODS Human primary breast cancer cells were either cultured alone or co-cultured with autologous MOs before treatment with MET. RESULTS MET downregulated breast cancer cell proliferation and phagocytosis, while having no significant effect on the ratio of phosphorylated Akt (p-Akt) to total Akt. Additionally, we observed that, in the absence of MET treatment, the levels of lactate dehydrogenase (LDH)-based cytotoxicity, catalase, ifCa2+, IL-10 and arginase activity were significantly reduced in co-cultures compared to levels in MOs cultured alone whereas levels of inducible nitric oxide synthase (iNOS) activity were significantly increased. In contrast, MET treatment reduced the effects measured in co-culture on the levels of LDH-based cytotoxicity, arginase activity, catalase, ifCa2+, and IFN-γ. MET also induced upregulation of both iNOS and arginase in MO cells, although the increase did not reach significant difference for iNOS activity. Moreover, MET induced a robust increase of superoxide dismutase (SOD) activity in MOs, but not in MOs co-cultured with breast cancer cells. Furthermore, MET markedly upregulated the levels of IFN-γ production and downregulated those of IL-10 in isolated MOs, while inducing a slight opposing up-regulation of IL-10 production in co-cultures. CONCLUSIONS Our results show that the biomarkers of phenotypic functional activities of MOs are modified after co-culturing with primary human breast cancer cells. Treatment of co-cultures with MET resulted in increased release of antitumor cytokine IFN-γ and ifCa2+, and increased cell necrosis during breast cancer cells-MOs crosstalk.
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Affiliation(s)
- Zoheir Dahmani
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Lynda Addou-Klouche
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Florence Gizard
- Cell Biology Unit, IGH CNRS, Université de Montpellier, (UMR 9002), Montpellier, France
| | - Sara Dahou
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Aida Messaoud
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Nihel Chahinez Djebri
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Mahmoud Idris Benaissti
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Meriem Mostefaoui
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Hadjer Terbeche
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Wafa Nouari
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Marwa Miliani
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Gérard Lefranc
- IGH, UMR 9002 CNRS-Université de Montpellier, Montpellier, France
| | - Anne Fernandez
- Cell Biology Unit, IGH CNRS, Université de Montpellier, (UMR 9002), Montpellier, France
| | - Ned J. Lamb
- Cell Biology Unit, IGH CNRS, Université de Montpellier, (UMR 9002), Montpellier, France
| | - Mourad Aribi
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
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14
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Zhang L, Wu X, Feng Y, Zheng L, Jian J. Selenium donors inhibits osteoclastogenesis through inhibiting IL-6 and plays a pivotal role in bone metastasis from breast cancer. Toxicol Res (Camb) 2020; 9:544-551. [PMID: 32905216 DOI: 10.1093/toxres/tfaa053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/21/2020] [Accepted: 06/28/2020] [Indexed: 12/23/2022] Open
Abstract
Bone metastases are a frequent complication of breast cancer, and there has been little progress in the treatment of breast cancer patients with bone metastases. The cytotoxicity of selenium donors, including organic selenium and selenium nanoparticles (SeNPs), to cancer cells has been reported previously, but their relationship with bone metastases progression is not fully clear yet. In this study, multicenter clinical exploration was conducted to obtain dietary selenium intakes of breast cancer patients with or without bone metastasis, to study the relationship between selenium and breast cancer prognosis and bone metastasis. We found that dietary selenium intakes were significantly lower in breast cancer patients with bone metastasis, comparing with the non-bone metastasis cases. Selenium lower group of bone metastasis breast cancer patients had worse prognosis, whereas the daily selenium intakes could not predict the prognosis of breast cancer patients without bone metastasis. Subsequently, we study the regulatory role of selenium donors on bone metastasis at the cellular level, by challenging the cells with SeNPs. SeNPs showed potent cytotoxicity in breast cancer cells, no matter whether they were primary or bone-metastatic. SeNPs treated cancer cell inhibited the survival and differentiation of osteoclast progenitor cells. At the molecular level, we demonstrated that IL-6 partially mediated osteoclastogenesis suppression by SeNPs. These results provide a new way for biomarkers or drug development to treat and even prevent bone metastases of breast cancer by using selenium donors.
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Affiliation(s)
- Luyan Zhang
- Department of Oncology, Binzhou People's Hospital, 515# Huanghe 7th Road, Binzhou 256600, China
| | - Xifa Wu
- Department of Spinal Surgery, Zibo Central Hospital, 54# gongqingtuan West Road, Zibo 255036, China
| | - Yong Feng
- Department of Orthopaedics, Chongqing University Central Hospita, 1# Jiankang Road, Chongqing, China
| | - Linlin Zheng
- Department of Spinal Surgery, Zibo Central Hospital, 54# gongqingtuan West Road, Zibo 255036, China
| | - Jinbo Jian
- Department of Oncology, Binzhou Medical University Hospital, 661# Huanghe 2th Road, Binzhou 256603, China
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15
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Pomposello MM, Nemes K, Mosovsky K. Dietary antioxidant seleno-L-methionine protects macrophages infected with Burkholderia thailandensis. PLoS One 2020; 15:e0238174. [PMID: 32881891 PMCID: PMC7470333 DOI: 10.1371/journal.pone.0238174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 08/11/2020] [Indexed: 12/29/2022] Open
Abstract
Burkholderia pseudomallei is a facultative intracellular pathogen and the causative agent of melioidosis, a potentially life-threatening disease endemic in Southeast Asia and Northern Australia. Treatment of melioidosis is a long and costly process and the pathogen is inherently resistant to several classes of antibiotics, therefore there is a need for new treatments that can help combat the pathogen. Previous work has shown that the combination of interferon-gamma, an immune system activator, and the antibiotic ceftazidime synergistically reduced the bacterial burden of RAW 264.7 macrophages that had been infected with either B. pseudomallei or Burkholderia thailandensis. The mechanism of the interaction was found to be partially dependent on interferon-gamma-induced production of reactive oxygen species inside the macrophages. To further confirm the role of reactive oxygen species in the effectiveness of the combination treatment, we investigated the impact of the antioxidant and reactive oxygen species scavenger, seleno-L-methionine, on intracellular and extracellular bacterial burden of the infected macrophages. In a dose-dependent manner, high concentrations of seleno-L-methionine (1000 μM) were protective towards infected macrophages, resulting in a reduction of bacteria, on its own, that exceeded the reduction caused by the antibiotic alone and rivaled the effect of ceftazidime and interferon-gamma combined. Seleno-L-methionine treatment also resulted in improved viability of infected macrophages compared to untreated controls. We show that the protective effect of seleno-L-methionine was partly due to its inhibition of bacterial growth. In summary, our study shows a role for high dose seleno-L-methionine to protect and treat macrophages infected with B. thailandensis.
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Affiliation(s)
- Michelle M. Pomposello
- Department of Biological Sciences, Moravian College, Bethlehem, Pennsylvania, United States of America
| | - Kaitlyn Nemes
- Department of Biological Sciences, Moravian College, Bethlehem, Pennsylvania, United States of America
| | - Kara Mosovsky
- Department of Biological Sciences, Moravian College, Bethlehem, Pennsylvania, United States of America
- * E-mail:
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16
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Zhuang C, Liu G, Barkema HW, Zhou M, Xu S, Ur Rahman S, Liu Y, Kastelic JP, Gao J, Han B. Selenomethionine Suppressed TLR4/NF-κB Pathway by Activating Selenoprotein S to Alleviate ESBL Escherichia coli-Induced Inflammation in Bovine Mammary Epithelial Cells and Macrophages. Front Microbiol 2020; 11:1461. [PMID: 32733409 PMCID: PMC7360804 DOI: 10.3389/fmicb.2020.01461] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 06/04/2020] [Indexed: 01/17/2023] Open
Abstract
Inflammation is the hallmark of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli-induced bovine mastitis. Organic selenium can activate pivotal proteins in immune responses and regulate the immune system. The present study aimed to investigate whether selenomethionine (SeMet) attenuates ESBL E. coli-induced inflammation in bovine mammary epithelial cells (bMECs) and macrophages. Cells were treated with 0, 5/10, 10/20, 20/40, or 40/60 μM SeMet for 12 h and/or inoculated with ESBL-E. coli [multiplicity of infection (MOI) = 5] for 4/6 h, respectively. We assessed inflammatory responses, including selenoprotein S (SeS), Toll-like receptor 4 (TLR4), Ikappa-B (IκB), phospho-NF-κB p65 (Ser536), interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), and lactate dehydrogenase (LDH) activities. Treatment with 40/60 μM SeMet promoted cell viability and inhibited LDH activities in both bMECs and macrophages. Inoculation with ESBL-E. coli reduced cell viability, which was attenuated by SeMet treatment in bMECs and macrophages. SeMet increased ESBL E. coli-induced downregulation of SeS and decreased LDH activities, TLR4, IκB, phospho-NF-κB p65 (Ser536), IL-1β, and TNF-α protein expressions in bMECs and macrophages. In addition, knockdown of SeS promoted protein expression of TLR4-mediated nuclear factor-kappa (NF-κB) pathway and BAY 11-708 inhibited TNF-α and IL-1β protein levels in bMECs and macrophages after ESBL-E. coli treatment. Moreover, ESBL-E. coli inoculation increased monocyte chemoattractant protein 1 (MCP-1), C-C motif ligand 3 (CCL-3), and CCL-5 mRNA expressions in bMECs. In conclusion, ESBL-E. coli induced expression of MCP-1, CCL-3, and CCL-5 in bMECs and then recruited and activated macrophages, whereas SeMet attenuated ESBL E. coli-induced inflammation through activated SeS-mediated TLR4/NF-κB signaling pathway in bMECs and macrophages.
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Affiliation(s)
- Cuicui Zhuang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Gang Liu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Herman W Barkema
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Man Zhou
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Siyu Xu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Sadeeq Ur Rahman
- Section of Microbiology, Department of Pathobiology, College of Veterinary Sciences and Animal Husbandry, Abdul Wali Khan University, Mardan, Pakistan
| | - Yongxia Liu
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, China
| | - John P Kastelic
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Jian Gao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Bo Han
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
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17
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Aspirin enhances regulatory functional activities of monocytes and downregulates CD16 and CD40 expression in myocardial infarction autoinflammatory disease. Int Immunopharmacol 2020; 83:106349. [DOI: 10.1016/j.intimp.2020.106349] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 02/20/2020] [Accepted: 02/24/2020] [Indexed: 12/14/2022]
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18
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Serra M, Columbano A, Ammarah U, Mazzone M, Menga A. Understanding Metal Dynamics Between Cancer Cells and Macrophages: Competition or Synergism? Front Oncol 2020; 10:646. [PMID: 32426284 PMCID: PMC7203474 DOI: 10.3389/fonc.2020.00646] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 04/07/2020] [Indexed: 12/13/2022] Open
Abstract
Metal ions, such as selenium, copper, zinc, and iron are naturally present in the environment (air, drinking water, and food) and are vital for cellular functions at chemical, molecular, and biological levels. These trace elements are involved in various biochemical reactions by acting as cofactors for many enzymes and control important biological processes by binding to the receptors and transcription factors. Moreover, they are essential for the stabilization of the cellular structures and for the maintenance of genome stability. A body of preclinical and clinical evidence indicates that dysregulation of metal homeostasis, both at intracellular and tissue level, contributes to the pathogenesis of many different types of cancer. These trace minerals play a crucial role in preventing or accelerating neoplastic cell transformation and in modulating the inflammatory and pro-tumorigenic response in immune cells, such as macrophages, by controlling a plethora of metabolic reactions. In this context, macrophages and cancer cells interact in different manners and some of these interactions are modulated by availability of metals. The current review discusses the new findings and focuses on the involvement of these micronutrients in metabolic and cellular signaling mechanisms that influence macrophage functions, onset of cancer and its progression. An improved understanding of "metallic" cross-talk between macrophages and cancer cells may pave the way for innovative pharmaceutical or dietary interventions in order to restore the balance of these trace elements and also strengthen the chemotherapeutic treatment.
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Affiliation(s)
- Marina Serra
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
- Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology (CCB), VIB, Leuven, Belgium
| | - Amedeo Columbano
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Ummi Ammarah
- Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology (CCB), VIB, Leuven, Belgium
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center – MBC, University of Torino, Turin, Italy
| | - Massimiliano Mazzone
- Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology (CCB), VIB, Leuven, Belgium
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center – MBC, University of Torino, Turin, Italy
| | - Alessio Menga
- Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology (CCB), VIB, Leuven, Belgium
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center – MBC, University of Torino, Turin, Italy
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19
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Selenium Treatment Enhanced Clearance of Salmonella in Chicken Macrophages (HD11). Antioxidants (Basel) 2019; 8:antiox8110532. [PMID: 31703342 PMCID: PMC6912687 DOI: 10.3390/antiox8110532] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/28/2019] [Accepted: 11/01/2019] [Indexed: 11/21/2022] Open
Abstract
As an important micronutrient, selenium (Se) plays many essential roles in immune response and protection against pathogens in humans and animals, but underlying mechanisms of Se-based control of salmonella growth within macrophages remain poorly elucidated. In this study, using RNA-seq analyses, we demonstrate that Se treatment (at an appropriate concentration) can modulate the global transcriptome of chicken macrophages HD11. The bioinformatic analyses (KEGG pathway analysis) revealed that the differentially expressed genes (DEGs) were mainly enriched in retinol and glutathione metabolism, revealing that Se may be associated with retinol and glutathione metabolism. Meanwhile, Se treatment increased the number of salmonella invading the HD11 cells, but reduced the number of salmonella within HD11 cells, suggesting that enhanced clearance of salmonella within HD11 cells was potentially modulated by Se treatment. Furthermore, RNA-seq analyses also revealed that nine genes including SIVA1, FAS, and HMOX1 were differentially expressed in HD11 cells infected with salmonella following Se treatment, and GO enrichment analysis showed that these DEGs were mainly enriched in an extrinsic apoptotic signaling pathway. In summary, these results indicate that Se treatment may not only affect retinol and glutathione metabolism in macrophages, but could also inhibit salmonella-induced macrophage apoptosis via an extrinsic apoptotic signaling pathway involving SIVA1.
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20
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Sumner SE, Markley RL, Kirimanjeswara GS. Role of Selenoproteins in Bacterial Pathogenesis. Biol Trace Elem Res 2019; 192:69-82. [PMID: 31489516 PMCID: PMC6801102 DOI: 10.1007/s12011-019-01877-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 08/19/2019] [Indexed: 12/11/2022]
Abstract
The trace element selenium is an essential micronutrient that plays an important role in maintaining homeostasis of several tissues including the immune system of mammals. The vast majority of the biological functions of selenium are mediated via selenoproteins, proteins which incorporate the selenium-containing amino acid selenocysteine. Several bacterial infections of humans and animals are associated with decreased levels of selenium in the blood and an adjunct therapy with selenium often leads to favorable outcomes. Many pathogenic bacteria are also capable of synthesizing selenocysteine suggesting that selenoproteins may have a role in bacterial physiology. Interestingly, the composition of host microbiota is also regulated by dietary selenium levels. Therefore, bacterial pathogens, microbiome, and host immune cells may be competing for a limited supply of selenium. Elucidating how selenium, in particular selenoproteins, may regulate pathogen virulence, microbiome diversity, and host immune response during a bacterial infection is critical for clinical management of infectious diseases.
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Affiliation(s)
- Sarah E Sumner
- Pathobiology Graduate Program, The Pennsylvania State University, University Park, PA, 16802, USA
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Rachel L Markley
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Girish S Kirimanjeswara
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA, 16802, USA.
- Center for Molecular Immunology and Infectious Disease, The Pennsylvania State University, University Park, PA, 16802, USA.
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21
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Meziane W, Mekkaoui Z, Hai I, Kacimi K, Djilali K, Touil-Boukoffa C, Lefranc G, Fernandez A, Lamb N, Mennechet F, Aribi M. Combination of metformin with sodium selenite induces a functional phenotypic switch of human GM-CSF monocyte-derived macrophages. Int Immunopharmacol 2019; 73:212-224. [PMID: 31108386 DOI: 10.1016/j.intimp.2019.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 04/03/2019] [Accepted: 05/04/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVES We evaluated the effects of metformin (Met, 1,1‑dimethylbiguanide hydrochloride) combined or not with sodium selenite (Ss, Na2SeO3) on the functional activities of LPS-activated GM-CSF monocyte-derived macrophages (GM-MDM). MATERIALS AND METHODS Human GM-MDMs from three healthy donors were treated with Met or Ss alone, or with the combination of Met and Ss, and assayed for various biological activities and cytokines expression. RESULTS Met alone and Ss alone had significantly different effects on phagocytosis and killing capacities and IL-β production, but had similar effects on the downregulation of inducible nitric oxide synthase (iNOS) activity, relative nicotinamide adenine dinucleotide reduced (NADH) dehydrogenase (Complex I), intracellular free calcium ions (ifCa2+), and on the upregulation of arginase activity. Additionally, iNOS activity-to-arginase activity ratio was downregulated in Met or Ss treated-GM-MDMs, and, conversely, upregulated in GM-MDMs treated with Met + Ss in combination, indicating that arginase activity dominates that of iNOS when the two treatments are associated. Moreover, combination of Met with Ss significantly upregulated hydrogen peroxide (H2O2) production and phagocytic capacity, but significantly downregulated the production of IL-1β, iNOS activity and killing capacity. On the contrary, we show that Met alone induced significant downregulation of phagocytic capacity and slight upregulation of killing capacity. Nevertheless, Ss seems to accentuate the effect of Met on the downregulation of NO production, as well as to reverse its effect on both phagocytic and killing capacities. On the other hand, all treatments induced a sharp decrease in relative levels of NADH dehydrogenase, and a marked decrease in the levels of ifCa2+. Finally, we found that GM-MDMs treated with Met or Ss, or Met combined with Ss exhibited different functional activation phenotypes, as indicated by the surface expression of co-stimulatory and cell activation and presentation molecules CD14, CD80, CD86 and HLA-DR. CONCLUSIONS Our results demonstrated that Met/Ss combination can play an important role in the modulation of functional activities of human LPS-activated GM-MDMs. Additionally, the overall effects of Met and the induction of "M2" GM-MDMs-associated arginase could be influenced by its combination with Ss.
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Affiliation(s)
- Warda Meziane
- Laboratory of Applied Molecular Biology and Immunology, BioMolim, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Zineb Mekkaoui
- Laboratory of Applied Molecular Biology and Immunology, BioMolim, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Ismahane Hai
- Laboratory of Applied Molecular Biology and Immunology, BioMolim, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Kamila Kacimi
- Laboratory of Applied Molecular Biology and Immunology, BioMolim, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Khuira Djilali
- Laboratory of Applied Molecular Biology and Immunology, BioMolim, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria
| | - Chafia Touil-Boukoffa
- Cytokines and NO Synthases Team, Laboratory of Cellular and Molecular Biology (LBCM), Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene (USTHB), BP 32 El-Alia Bab-Ezzouar, Algiers, Algeria
| | - Gérard Lefranc
- Institut de Génétique Humaine, UMR 9002 CNRS-Université de Montpellier, Montpellier, France
| | - Anne Fernandez
- Institut de Génétique Humaine, UMR 9002 CNRS-Université de Montpellier, Montpellier, France
| | - Ned Lamb
- Institut de Génétique Humaine, UMR 9002 CNRS-Université de Montpellier, Montpellier, France
| | - Franck Mennechet
- Institut de Génétique Moléculaire de Montpellier (IGMM) - UMR5535, CNRS et Université de Montpellier, France
| | - Mourad Aribi
- Laboratory of Applied Molecular Biology and Immunology, BioMolim, W0414100, University of Tlemcen, 13000 Tlemcen, Algeria.
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22
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Selenocompounds as Novel Antibacterial Agents and Bacterial Efflux Pump Inhibitors. Molecules 2019; 24:molecules24081487. [PMID: 31014009 PMCID: PMC6514980 DOI: 10.3390/molecules24081487] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/02/2019] [Accepted: 04/13/2019] [Indexed: 11/17/2022] Open
Abstract
Bacterial multidrug resistance is becoming a growing problem for public health, due to the development and spreading of bacterial strains resistant to antimicrobials. In this study, the antibacterial and multidrug resistance reversing activity of a series of seleno-carbonyl compounds has been evaluated. The effects of eleven selenocompounds on bacterial growth were evaluated in Staphylococcus aureus, methicillin resistant S. aureus (MRSA), Enterococcus faecalis, Escherichia coli, and Chlamydia trachomatis D. The combination effect of compounds with antibiotics was examined by the minimum inhibitory concentration reduction assay. Their efflux pump (EP) inhibitory properties were assessed using real-time fluorimetry. Relative expressions of EP and quorum-sensing genes were studied by quantitative PCR. Results showed that a methylketone selenoester had remarkable antibacterial activity against Gram-positive bacteria and potentiated the activity of oxacillin in MRSA. Most of the selenocompounds showed significant anti-chlamydial effects. The selenoanhydride and the diselenodiester were active inhibitors of the AcrAB-TolC system. Based on these results it can be concluded that this group of selenocompounds can be attractive potential antibacterials and EP inhibitors. The discovery of new derivatives with a significant antibacterial activity as novel selenocompounds, is of high impact in the fight against resistant pathogens.
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23
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Functions of Macrophages in the Maintenance of Intestinal Homeostasis. J Immunol Res 2019; 2019:1512969. [PMID: 31011585 PMCID: PMC6442305 DOI: 10.1155/2019/1512969] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 12/03/2018] [Accepted: 12/16/2018] [Indexed: 02/07/2023] Open
Abstract
Intestinal macrophages constitute the largest pool of macrophages in the body and have emerged as crucial sentinels for pathogen recognition and elimination. The source and development of intestinal macrophages, as well as their distinct properties have been well documented. Intestinal macrophages exert their functions in the maintenance of intestinal homeostasis by shaping host-microbiota symbiosis, managing gut inflammation, crosstalking with T cells, and facilitating wound repair. Recently, nutritional regulation of intestinal macrophages has attracted substantial attention and is becoming a promising approach to disease prevention and control. Understanding the mechanisms employed by intestinal macrophages in mediating intestinal immune homeostasis and inflammation, as well as the mode of action of dietary nutrients in the modulating functions of intestinal macrophages, represents an opportunity to prevent and control inflammatory bowel diseases.
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24
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Brzački V, Mladenović B, Dimić D, Jeremić L, Živanović D, Djukić D, Stojanović NM, Sokolović DT. Comparison between the effects of selenomethionine and S-adenosylmethionine in preventing cholestasis-induced rat liver damage. Amino Acids 2019; 51:795-803. [DOI: 10.1007/s00726-019-02716-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 02/28/2019] [Indexed: 01/09/2023]
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25
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Fu A, Mo Q, Wu Y, Wang B, Liu R, Tang L, Zeng Z, Zhang X, Li W. Protective effect of Bacillus amyloliquefaciens against Salmonella via polarizing macrophages to M1 phenotype directly and to M2 depended on microbiota. Food Funct 2019; 10:7653-7666. [DOI: 10.1039/c9fo01651a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Bacillus amyloliquefaciens SC06 (BaSC06), a potential probiotic, plays a positive role in animal growth performance and immune function.
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Affiliation(s)
- Aikun Fu
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry
- College of Animal Sciences
- Zhejiang University
- Hangzhou
- China
| | - Qiufen Mo
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry
- College of Animal Sciences
- Zhejiang University
- Hangzhou
- China
| | - Yanping Wu
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry
- College of Animal Sciences
- Zhejiang University
- Hangzhou
- China
| | - Baikui Wang
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry
- College of Animal Sciences
- Zhejiang University
- Hangzhou
- China
| | - Rongrong Liu
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry
- College of Animal Sciences
- Zhejiang University
- Hangzhou
- China
| | - Li Tang
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry
- College of Animal Sciences
- Zhejiang University
- Hangzhou
- China
| | - Zhonghua Zeng
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry
- College of Animal Sciences
- Zhejiang University
- Hangzhou
- China
| | - Xiaoping Zhang
- China National Bamboo Research Center
- Key Laboratory of Resources and Utilization of Bamboo of State Forestry Administration
- Hangzhou
- China
| | - Weifen Li
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry
- College of Animal Sciences
- Zhejiang University
- Hangzhou
- China
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26
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Zhang ZB, Guo YF, Li CY, Qiu CW, Guo MY. Selenium influences mmu-miR-155 to inhibit inflammation inStaphylococcus aureus-induced mastitis in mice. Food Funct 2019; 10:6543-6555. [DOI: 10.1039/c9fo01488h] [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
Mastitis, a major disease affecting dairy cows, is most commonly caused byStaphylococcus aureus(S. aureus).
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Affiliation(s)
- Zhen-biao Zhang
- Department of Clinical Veterinary Medicine
- College of Veterinary Medicine
- Huazhong Agricultural University
- Wuhan 430070
- People's Republic of China
| | - Ying-fang Guo
- Department of Clinical Veterinary Medicine
- College of Veterinary Medicine
- Huazhong Agricultural University
- Wuhan 430070
- People's Republic of China
| | - Cheng-ye Li
- Department of Clinical Veterinary Medicine
- College of Veterinary Medicine
- Huazhong Agricultural University
- Wuhan 430070
- People's Republic of China
| | - Chang-wei Qiu
- Department of Clinical Veterinary Medicine
- College of Veterinary Medicine
- Huazhong Agricultural University
- Wuhan 430070
- People's Republic of China
| | - Meng-yao Guo
- Department of Clinical Veterinary Medicine
- College of Veterinary Medicine
- Huazhong Agricultural University
- Wuhan 430070
- People's Republic of China
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27
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Miliani M, Nouar M, Paris O, Lefranc G, Mennechet F, Aribi M. Thymoquinone Potently Enhances the Activities of Classically Activated Macrophages Pulsed with Necrotic Jurkat Cell Lysates and the Production of Antitumor Th1-/M1-Related Cytokines. J Interferon Cytokine Res 2018; 38:539-551. [PMID: 30422744 DOI: 10.1089/jir.2018.0010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Antitumor activity of classically activated macrophage (Mϕ) may be impaired within the tumors, spleen, and bone marrow. Thus, it is possible to boost its antitumor activity after its pulsing with necrotic tumor cell lysates combined with an adjuvant. We set out to determine the potential adjuvant effects of thymoquinone (TQ; 2-isopropyl-5-methyl-1,4-benzoquinone, C10H12O2) on both functional activities of classically activated Mϕs, pulsed or not with necrotic Jurkat T cell line lysates (NecrJCL), and the balance of antitumor cytokines (ATCs) versus immunosuppressive cytokines (ISCs) during crosstalk with autologous human CD4+ T cells. We found that TQ treatment resulted in a significant upregulation of phagocytic activity, respiratory burst, the production of interleukin-2 (IL-2), IL-6, and IL-17 in NecrJCL-pulsed Mϕ co-culture system, and, conversely, in downregulation of the production of IL-6, IL-17, nitric oxide (NO), and arginase activity in nonpulsed TQ-treated Mϕs co-culture system. In addition, TQ has also shown low upregulation effect on the production of interferon-γ (IFN-γ), tumor necrosis factor-α (TNF-α), and IL-1β, pathogen killing capacity and H2O2 in NecrJCL-pulsed Mϕs co-cultures. Moreover, TQ significantly downregulated arginase activity, and significantly upregulated inducible NO synthase (iNOS) activity-to-arginase activity ratio in NecrJCL-pulsed Mϕ co-cultures. Furthermore, TQ downregulated IL-10-to-IL-17 ratio and total cellular cholesterol content (ttcCHOL), but upregulated the ratios of IL-1β-to-IL-4, IL-1β-to-IL-10, IFN-γ-to-IL-4, IFN-γ-to-IL-10, TNF-α-to-IL-4, TNF-α-to-IL-10, and combined proinflammatory cytokines (PICs)-to-anti-inflammatory cytokines (AICs) in NecrJCL-pulsed Mϕs co-culture system, whereas significant differences were highlighted only for IL-10-to-IL-17, IFN-γ-to-IL-10, and PICs-to-AICs ratios. Our outcomes demonstrated that TQ can act as potent adjuvant for enhancing both the functional activities of NecrJCL-pulsed Mϕ and the production of ATCs during their interplay with CD4+ T cells.
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Affiliation(s)
- Maroua Miliani
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Mouna Nouar
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
| | - Océane Paris
- Institut de Génétique Moléculaire de Montpellier (IGMM)-UMR5535, CNRS et Université de Montpellier, Montpellier, France
| | - Gérard Lefranc
- Institut de Génétique Humaine, UMR 9002 CNRS-Université de Montpellier, Montpellier, France
| | - Franck Mennechet
- Institut de Génétique Moléculaire de Montpellier (IGMM)-UMR5535, CNRS et Université de Montpellier, Montpellier, France
| | - Mourad Aribi
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Tlemcen, Algeria
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28
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Avery JC, Hoffmann PR. Selenium, Selenoproteins, and Immunity. Nutrients 2018; 10:E1203. [PMID: 30200430 PMCID: PMC6163284 DOI: 10.3390/nu10091203] [Citation(s) in RCA: 455] [Impact Index Per Article: 75.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 08/29/2018] [Accepted: 08/30/2018] [Indexed: 12/14/2022] Open
Abstract
Selenium is an essential micronutrient that plays a crucial role in development and a wide variety of physiological processes including effect immune responses. The immune system relies on adequate dietary selenium intake and this nutrient exerts its biological effects mostly through its incorporation into selenoproteins. The selenoproteome contains 25 members in humans that exhibit a wide variety of functions. The development of high-throughput omic approaches and novel bioinformatics tools has led to new insights regarding the effects of selenium and selenoproteins in human immuno-biology. Equally important are the innovative experimental systems that have emerged to interrogate molecular mechanisms underlying those effects. This review presents a summary of the current understanding of the role of selenium and selenoproteins in regulating immune cell functions and how dysregulation of these processes may lead to inflammation or immune-related diseases.
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Affiliation(s)
- Joseph C Avery
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, 651 Ilalo Street, Honolulu, HI 96813, USA.
| | - Peter R Hoffmann
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, 651 Ilalo Street, Honolulu, HI 96813, USA.
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29
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Abstract
The search for the bactericidal activity of macrophage (Mϕ) is crucial not only during infection, but also to explore its functional activities in normal and pathological conditions, such as autoimmune and inflammatory disorders, allergic inflammation, and cancer. There are several methods exploring the phagocytic and bactericidal activities of Mϕ. This chapter focuses specifically on the technique called antibiotic protection assay and on the methods for the determination of Mϕ production of nitric oxide and hydrogen peroxide as antimicrobial agents and biomarkers of respiratory burst. The protocols presented herein are valid for both Mϕ cell lines and monocyte-derived Mϕs (MDMs).
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Affiliation(s)
- Mourad Aribi
- Laboratory of Applied Molecular Biology and Immunology (BIOMOLIM, W0414100), Department of Biology, University of Tlemcen, Tlemcen, Algeria.
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30
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Gautam PK, Kumar S, Tomar M, Singh RK, Acharya A, Kumar S, Ram B. Selenium nanoparticles induce suppressed function of tumor associated macrophages and inhibit Dalton's lymphoma proliferation. Biochem Biophys Rep 2017; 12:172-184. [PMID: 29090279 PMCID: PMC5650654 DOI: 10.1016/j.bbrep.2017.09.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 09/16/2017] [Accepted: 09/18/2017] [Indexed: 11/22/2022] Open
Abstract
Selenium Nanoparticle (SeNPs) is reported that it enhances and maintains optimal immune during infection and malignancies. To this end, we examined the role of selenium on TAMS whose anti-tumor function suppressed which favor tumor progression. BALB/c (H2d) strain of mice non-Hodgkin type of Dalton's cell line was used to check the role of carboxlic group induced, synthesized SeNPs on TAMs. Screening of IC50 value was done primarily trypen blue exclusion assay and 50% proliferation of DL cells inhibited 40 ng/ml to 50 ng/. Treatment also decreases ΔΨm, fragmentation of DNA of DL cells and arrest cells cycle in G1/G0 phage. Untreated TAMs cells showing suppressed expression of ROS, adhesion, phagocytosis, fusion and receptor profiling such as ICAM-1, CD47, CD172α. Which was induced more as compare to untreated group. SeNPs have potential to induce the anti-tumor function of TAMs whose anti-tumor function down-regulated pliable shifted towards tumor progression. It decreased the proliferation of DL cell by inducing apoptosis. Therefore, the synthesized SeNPs could be used for imaging diagnosis and cancer therapy which must be cost effective with negligible side effects shifted towards tumor progression. It decreased the proliferation of DL cell by inducing apoptosis.
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Affiliation(s)
- Pramod Kumar Gautam
- Institute of Science, Department of Zoology, Faculty of Science, Banaras Hindu University, Varanasi, India
- Department of Drayaguna, Faculty of Ayurveda, Institute of Medical Science, Banaras Hindu University, Varanasi, India
| | - Sanjay Kumar
- Institute of Science, Department of Zoology, Faculty of Science, Banaras Hindu University, Varanasi, India
| | - M.S. Tomar
- Institute of Science, Department of Zoology, Faculty of Science, Banaras Hindu University, Varanasi, India
| | - Rishi Kant Singh
- Institute of Science, Department of Zoology, Faculty of Science, Banaras Hindu University, Varanasi, India
| | - A. Acharya
- Institute of Science, Department of Zoology, Faculty of Science, Banaras Hindu University, Varanasi, India
| | - Sanjay Kumar
- Department of Drayaguna, Faculty of Ayurveda, Institute of Medical Science, Banaras Hindu University, Varanasi, India
| | - B. Ram
- Department of Drayaguna, Faculty of Ayurveda, Institute of Medical Science, Banaras Hindu University, Varanasi, India
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High-density lipoprotein immunomodulates the functional activities of macrophage and cytokines produced during ex vivo macrophage-CD4 + T cell crosstalk at the recent-onset human type 1 diabetes. Cytokine 2017; 96:59-70. [DOI: 10.1016/j.cyto.2017.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 02/08/2017] [Accepted: 03/01/2017] [Indexed: 12/31/2022]
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Anti-inflammatory activity of cecropin-A2 from Musca domestica. Microb Pathog 2017; 110:637-644. [PMID: 28735081 DOI: 10.1016/j.micpath.2017.07.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 07/12/2017] [Accepted: 07/18/2017] [Indexed: 01/28/2023]
Abstract
This study aimed to investigate the anti-inflammatory activity of Musca domestica cecropin-A2 (Mdc-A2) toward Staphylococcus aureus (S. aureus) to learn more about their immunological functions. RAW264.7 cells were transfected with recombinant lentiviruses introduce pLEX-Mdc-A2into the RAW264.7 cell line (RAW-Mdc-A2). The RAW264.7 cell line with empty pLEX (RAW-pLEX) was produced in the same manner as a negative control. Real-time quantitative reverse transcription PCR (RT-PCR) was performed to analyze the mRNA expression of TNF-a, IL-1β, NFκB-1 and NFκB-2 in S. aureus-stimulated RAW-Mdc-A2 cells and RAW-pLEX cells in untreated cells and cells treated for 3 h, 6 h, 12 h and 24 h. RT-PCR was performed to analyze the mRNA expression of TNF-a, NFκB-1 and NFκB-2 stimulated by Lipoteichoic acid (LTA). Production of TNF-a was detected by enzyme-linked immunosorbent assay (ELISA). Colony counts were used to calculate the number of CFU per mL of cell culture supernatants. The results showed that compared to RAW-pLEX cells, stable transfection of Mdc-A2 in RAW264.7 cells stimulated by S. aureus significantly down-regulated the mRNA expression of TNF-a transcript variant 1 (TNF-a-tv-1) at 6 h and 12 h and the mRNA expression of TNF-a transcript variant 2 (TNF-a-tv-2) at 3 h, 6 h and 12 h. Compared to RAW-pLEX cells, stable transfection of Mdc-A2 in RAW264.7 cells stimulated by S. aureus significantly down-regulated the mRNA expression of IL-1β-T at 3 h, 6 h and 12 h as well as the mRNA expression of IL-1β at 3 h and 6 h. The expression and production of TNF-a and bacterial burden of cell culture supernatants were significantly down-regulated in RAW-Mdc-A2 cells stimulated by S. aureus, and the expression and production of TNF-a were significantly down-regulated in RAW-Mdc-A2 cells stimulated by LTA. Compared to RAW-pLEX cells, stable transfection of Mdc-A2 in RAW264.7 cells stimulated by S. aureus significantly down-regulated the mRNA expression of NFκB-1 at 3 h, 6 h and 12 h as well as the mRNA expression of NFκB-2 at 6 h. Additionally, stable transfection of Mdc-A2 in RAW264.7 cells stimulated by LTA significantly down-regulated the mRNA expression of NFκB-1. In conclusion, Mdc-A2 possesses potent anti-inflammatory activity and potent antimicrobial activity. Additionally, Mdc-A2 may interact with LTA and execute strong anti-inflammatory activity by blocking the activation of NF-κB signaling pathways.
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Mogen AB, Carroll RK, James KL, Lima G, Silva D, Culver JA, Petucci C, Shaw LN, Rice KC. Staphylococcus aureus nitric oxide synthase (saNOS) modulates aerobic respiratory metabolism and cell physiology. Mol Microbiol 2017; 105:139-157. [PMID: 28431199 PMCID: PMC5641370 DOI: 10.1111/mmi.13693] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2017] [Indexed: 12/11/2022]
Abstract
Nitric oxide (NO) is generated from arginine and oxygen via NO synthase (NOS). Staphylococcus aureus NOS (saNOS) has previously been shown to affect virulence and resistance to exogenous oxidative stress, yet the exact mechanism is unknown. Herein, a previously undescribed role of saNOS in S. aureus aerobic physiology was reported. Specifically, aerobic S. aureus nos mutant cultures presented with elevated endogenous reactive oxygen species (ROS) and superoxide levels, as well as increased membrane potential, increased respiratory dehydrogenase activity and slightly elevated oxygen consumption. Elevated ROS levels in the nos mutant likely resulted from altered respiratory function, as inhibition of NADH dehydrogenase brought ROS levels back to wild-type levels. These results indicate that, in addition to its recently reported role in regulating the switch to nitrate-based respiration during low-oxygen growth, saNOS also plays a modulatory role during aerobic respiration. Multiple transcriptional changes were also observed in the nos mutant, including elevated expression of genes associated with oxidative/nitrosative stress, anaerobic respiration and lactate metabolism. Targeted metabolomics revealed decreased cellular lactate levels, and altered levels of TCA cycle intermediates, the latter of which may be related to decreased aconitase activity. Collectively, these findings demonstrate a key contribution of saNOS to S. aureus aerobic respiratory metabolism.
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Affiliation(s)
- Austin B. Mogen
- Department of Microbiology and Cell Science, IFAS, University of Florida, Gainesville, FL, 32611-0700
| | - Ronan K. Carroll
- Department of Biological Sciences, Ohio University, Athens, Ohio, 45701
| | - Kimberly L. James
- Department of Microbiology and Cell Science, IFAS, University of Florida, Gainesville, FL, 32611-0700
| | - Genevy Lima
- Department of Microbiology and Cell Science, IFAS, University of Florida, Gainesville, FL, 32611-0700
| | - Dona Silva
- Department of Microbiology and Cell Science, IFAS, University of Florida, Gainesville, FL, 32611-0700
| | - Jeffrey A. Culver
- Metabolomics Core, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL, 32827
- Southeast Center for Integrated Metabolomics, University of Florida, Gainesville, FL, 32611
| | - Christopher Petucci
- Metabolomics Core, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL, 32827
- Southeast Center for Integrated Metabolomics, University of Florida, Gainesville, FL, 32611
| | - Lindsey N. Shaw
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL, 33620-5150
| | - Kelly C. Rice
- Department of Microbiology and Cell Science, IFAS, University of Florida, Gainesville, FL, 32611-0700
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Fu A, Wang Y, Wu Y, Chen H, Zheng S, Li Y, Xu X, Li W. Echinacea purpurea Extract Polarizes M1 Macrophages in Murine Bone Marrow-Derived Macrophages Through the Activation of JNK. J Cell Biochem 2017; 118:2664-2671. [PMID: 28067413 DOI: 10.1002/jcb.25875] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 01/06/2017] [Indexed: 01/19/2023]
Abstract
Echinacea purpurea is an indigenous North American purple cone flower used by North Americans for treatment of various infectious diseases and wounds. This study investigated the effect of polysaccharide enriched extract of Echinacea purpurea (EE) on the polarization of macrophages. The results showed that 100 µg/mL of EE could markedly activate the macrophage by increasing the expression of CD80, CD86, and MHCII molecules. Meanwhile, EE upregulated the markers of classically activated macrophages (M1) such as CCR7 and the production of IL-1β, IL-6, IL-12p70, TNF-αand NO. The functional tests showed that EE enhanced the phagocytic and intracellular bactericidal activity of macrophage against ST. Furthermore, we demonstrated that JNK are required for EE-induced NO and M1-related cytokines production. Together, these results demonstrated that EE can polarize macrophages towards M1 phenotype, which is dependent on the JNK signaling pathways. J. Cell. Biochem. 118: 2664-2671, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Aikun Fu
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.,Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, 310058, China
| | - Yang Wang
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.,Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, 310058, China
| | - Yanping Wu
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.,Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, 310058, China
| | - Hongliang Chen
- Shandong Qilu Animal Health Co., Ltd, Jinan, Shangdong, China
| | - Shasha Zheng
- California Baptist University, Riverside, 92504, California
| | - Yali Li
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.,Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, 310058, China
| | - Xin Xu
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Weifen Li
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.,Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, 310058, China
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1,25-dihydroxyvitamin D 3 down-modulates the production of proinflammatory cytokines and nitric oxide and enhances the phosphorylation of monocyte-expressed STAT6 at the recent-onset type 1 diabetes. Immunol Lett 2016; 179:122-130. [PMID: 27717877 DOI: 10.1016/j.imlet.2016.10.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 08/30/2016] [Accepted: 10/02/2016] [Indexed: 12/19/2022]
Abstract
BACKGROUND Type 1 diabetes (T1D) is associated with an imbalance between inflammation and repair. Recently, the biologically active form of vitamin D3, i.e. 1,25(OH)2D3, has been reported to have potent immunomodulatory effects on both innate and adaptive immune cells, as well as on the production of their specific cytokines. METHODS We examined the effect of 1,25(OH)2D3 on the production of proinflammatory Th1/Th17 and anti-inflammatory Th2/Treg related cytokines, as well as on the phosphorylation of monocyte-expressed STAT4 and STAT6 at the recent-onset human T1D. RESULTS The levels of IFN-γ, IL-17 and nitric oxide (NO) production were significantly increased in peripheral blood mononuclear cells (PBMCs) from patients with T1D compared to controls. Similarly, STAT4 tyrosine phosphorylation (p-STAT4, Tyr693) levels were significantly increased in monocytes from patients when compared to controls. Conversely, the levels of IL-4, IL-10 and p-STAT6 (Tyr641) were significantly decreased in type 1 diabetic patients than in controls. Treatment with 1,25(OH)2D3 resulted in significant up-regulation of IL-4, IL-10, arginase activity, and p-STAT6 and, conversely, down-regulation of IFN-γ, IL-17 and NO production levels, as well as p-STAT4. Additionally, 1,25(OH)2D3 significantly enhanced Treg-to-Th17 ratio, and induced a significant decrease in Th1-to-Th2, NO production-to-arginase activity and p-STAT4-to-p-STAT6 ratios. CONCLUSIONS Our study suggests that the biologically active form of vitamin D can reverse the activation of inflammatory pathways at the onset of T1D. Additionally, its immunomodulation properties may vary depending on the overall patterns of cytokines. From a therapeutic point of view, vitamin D may potentially be suggested as an immunological adjuvant and a potential anti-inflammatory agent in individuals at risk of T1D.
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Norton RL, Fredericks GJ, Huang Z, Fay JD, Hoffmann FW, Hoffmann PR. Selenoprotein K regulation of palmitoylation and calpain cleavage of ASAP2 is required for efficient FcγR-mediated phagocytosis. J Leukoc Biol 2016; 101:439-448. [PMID: 27601625 DOI: 10.1189/jlb.2a0316-156rr] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 08/07/2016] [Accepted: 08/10/2016] [Indexed: 12/17/2022] Open
Abstract
Effective activation of macrophages through phagocytic Fcγ receptors (FcγR) has been shown to require selenoprotein K (Selk). We set out to determine whether the FcγR-mediated uptake process itself also requires Selk and potential underlying mechanisms. Macrophages from Selk knockout (KO) mice were less efficient compared with wild-type (WT) controls in engulfing IgG-coated fluorescent beads. Using LC-MS/MS to screen for Selk-binding partners involved in FcγR-mediated phagocytosis, we identified Arf-GAP with SH3 domain, ANK repeat, and PH domain-containing protein 2 (ASAP2). Coimmunoprecipitation assays confirmed interactions between Selk and ASAP2. Selk was required for ASAP2 to be cleaved by calpain-2 within the Bin/Amphiphysin/Rvs (BAR) domain of ASAP2. BAR domains promote membrane association, which was consistent with our data showing that Selk deficiency led to retention of ASAP2 within the phagocytic cup. Because Selk was recently identified as a cofactor for the palmitoylation of certain proteins, we investigated whether ASAP2 was palmitoylated and whether this was related to its cleavage by calpain-2. Acyl/biotin exchange assays and MALDI-TOF analysis showed that cysteine-86 in ASAP2 was palmitoylated in WT, but to a much lesser extent in KO, mouse macrophages. Inhibitors of either palmitoylation or calpain-2 cleavage and rescue experiments with different versions of Selk demonstrated that Selk-dependent palmitoylation of ASAP2 leads to cleavage by calpain-2 within the BAR domain, which releases this protein from the maturing phagocytic cup. Overall, these findings identify ASAP2 as a new target of Selk-dependent palmitoylation and reveal a new mechanism regulating the efficiency of FcγR-mediated phagocytosis.
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Affiliation(s)
- Robert L Norton
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA; and
| | - Gregory J Fredericks
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA; and
| | - Zhi Huang
- Department of Biotechnology, College of Life Science and Technology, Jinan University, Guangzhou, P. R. China
| | - Jeffrey D Fay
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA; and
| | - FuKun W Hoffmann
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA; and
| | - Peter R Hoffmann
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA; and
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Bi CL, Wang H, Wang YJ, Sun J, Dong JS, Meng X, Li JJ. Selenium inhibits Staphylococcus aureus-induced inflammation by suppressing the activation of the NF-κB and MAPK signalling pathways in RAW264.7 macrophages. Eur J Pharmacol 2016; 780:159-65. [DOI: 10.1016/j.ejphar.2016.03.044] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 03/18/2016] [Accepted: 03/24/2016] [Indexed: 12/25/2022]
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Nouari W, Ysmail-Dahlouk L, Aribi M. Vitamin D3 enhances bactericidal activity of macrophage against Pseudomonas aeruginosa. Int Immunopharmacol 2015; 30:94-101. [PMID: 26655879 DOI: 10.1016/j.intimp.2015.11.033] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Revised: 11/07/2015] [Accepted: 11/25/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND The bioactive form of vitamin D3, i.e.1,25-dihydroxyvitamin D3 (1,25(OH)2D3) vitamin D has been shown to modulate monocytes/macrophages physiology and its response against bacterial infections. Pseudomonas aeruginosa (P. aeruginosa) is an opportunistic bacterial pathogen that can most frequently be fatal in immunocompromised infected people. METHODS We investigated the ex vivo effect of 1,25(OH)2D3 on monocyte-derived macrophages function against P. aeruginosa infection. RESULTS Relative vitamin D receptor (VDR) mRNA expression was significantly increased in infected and 1,25(OH)2D3-treated macrophages compared to controls (p<0.01). Treatment with 1,25(OH)2D3 markedly resulted in up-regulation of nitric oxide (NO) and IL-1β production and down-regulation of IL-10 levels (respectively, p=0.029, p=0.048 and p=0.008). Additionally, 1,25(OH)2D3 significantly increased M1/M2 macrophage ratio (p<0.05) and slightly reduced intracellular bacterial development. Furthermore, the arginase activity, P. aeruginosa phagocytosis and killing were significantly increased in cells that were both infected and 1,25(OH)2D3-treated compared to the infected, but not 1,25(OH)2D3-treated macrophages (respectively, p<0.001, p<0.01 and p<0.001). CONCLUSIONS We show in this study that bioactive from of vitamin D [1,25-dihydroxyvitamin D3 (1,25D3)] can enhance M1 macrophage polarization and their bactericidal protective activity against P. aeruginosa. Future works would involve improving the treatment response through dose-dependent effect studies, both in ex vivo and in vivo models.
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Affiliation(s)
- Wafa Nouari
- Laboratory of Applied Molecular Biology and Immunology, University of Tlemcen, 13000, Tlemcen, Algeria
| | - Lamia Ysmail-Dahlouk
- Laboratory of Applied Molecular Biology and Immunology, University of Tlemcen, 13000, Tlemcen, Algeria
| | - Mourad Aribi
- Laboratory of Applied Molecular Biology and Immunology, University of Tlemcen, 13000, Tlemcen, Algeria.
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