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Lopes AM, Molino JVD, dos Santos-Ebinuma VC, Pessoa A, Valentini SR, Pereira JFB. Effect of electrolytes as adjuvants in GFP and LPS partitioning on aqueous two-phase systems: 1. Polymer-polymer systems. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.04.090] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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52
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Induction of Trained Innate Immunity in Human Monocytes by Bovine Milk and Milk-Derived Immunoglobulin G. Nutrients 2018; 10:nu10101378. [PMID: 30262772 PMCID: PMC6213000 DOI: 10.3390/nu10101378] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/12/2018] [Accepted: 09/21/2018] [Indexed: 12/11/2022] Open
Abstract
Innate immune memory, also termed “trained immunity” in vertebrates, has been recently described in a large variety of plants and animals. In most cases, trained innate immunity is induced by pathogens or pathogen-associated molecular patterns (PAMPs), and is associated with long-term epigenetic, metabolic, and functional reprogramming. Interestingly, recent findings indicate that food components can mimic PAMPs effects and induce trained immunity. The aim of this study was to investigate whether bovine milk or its components can induce trained immunity in human monocytes. To this aim, monocytes were exposed for 24 h to β-glucan, Toll-like receptor (TLR)-ligands, bovine milk, milk fractions, bovine lactoferrin (bLF), and bovine Immunoglobulin G (bIgG). After washing away the stimulus and a resting period of five days, the cells were re-stimulated with TLR ligands and Tumor necrosis factor (TNF-) and interleukin (IL)-6 production was measured. Training with β-glucan resulted in higher cytokine production after TLR1/2, TLR4, and TLR7/8 stimulation. When monocytes trained with raw milk were re-stimulated with TLR1/2 ligand Pam3CSK4, trained cells produced more IL-6 compared to non-trained cells. Training with bIgG resulted in higher cytokine production after TLR4 and TLR7/8 stimulation. These results show that bovine milk and bIgG can induce trained immunity in human monocytes. This confirms the hypothesis that diet components can influence the long-term responsiveness of the innate immune system.
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Wilding KM, Hunt JP, Wilkerson JW, Funk PJ, Swensen RL, Carver WC, Christian ML, Bundy BC. Endotoxin-Free E. coli-
Based Cell-Free Protein Synthesis: Pre-Expression Endotoxin Removal Approaches for on-Demand Cancer Therapeutic Production. Biotechnol J 2018; 14:e1800271. [DOI: 10.1002/biot.201800271] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 06/12/2018] [Indexed: 01/26/2023]
Affiliation(s)
- Kristen M. Wilding
- Chemical Engineering; Brigham Young University; 350 Clyde Provo UT 84602 USA
| | - John P. Hunt
- Chemical Engineering; Brigham Young University; 350 Clyde Provo UT 84602 USA
| | - Joshua W. Wilkerson
- Chemical Engineering; Brigham Young University; 350 Clyde Provo UT 84602 USA
| | - Parker J. Funk
- Chemical Engineering; Brigham Young University; 350 Clyde Provo UT 84602 USA
| | - Rebecca L. Swensen
- Chemical Engineering; Brigham Young University; 350 Clyde Provo UT 84602 USA
| | - William C. Carver
- Chemical Engineering; Brigham Young University; 350 Clyde Provo UT 84602 USA
| | | | - Bradley C. Bundy
- Chemical Engineering; Brigham Young University; 350 Clyde Provo UT 84602 USA
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Perdijk O, van Neerven RJJ, van den Brink E, Savelkoul HFJ, Brugman S. The oligosaccharides 6'-sialyllactose, 2'-fucosyllactose or galactooligosaccharides do not directly modulate human dendritic cell differentiation or maturation. PLoS One 2018; 13:e0200356. [PMID: 29990329 PMCID: PMC6039038 DOI: 10.1371/journal.pone.0200356] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 06/25/2018] [Indexed: 01/25/2023] Open
Abstract
Breast milk plays an important role in immune development in early life and protects against diseases later in life. A wide range of the beneficial effects of breast milk are attributed to human milk oligosaccharides (HMOs) as well as components such as vitamin D3 (VitD3) or TGFβ. One mechanism by which HMOs might contribute to immune homeostasis and protection against disease is the induction of a local tolerogenic milieu. In this study we investigated the effect of the HMOs 6’-sialyllactose (6’SL) and 2’-fucosyllactose (2’FL) as well as prebiotic galactooligosaccharides (GOS) on DC differentiation and maturation. Isolated CD14+ monocytes were cultured for six days in the presence of GM-CSF and IL-4 with or without 6’SL, 2’FL, GOS, VitD3 or TGFβ. Additionally, immature VitD3DC, TGFβDC and moDC were used as different DC types to investigate the effect of 6’SL, 2’FL and GOS on DC maturation. Surface marker expression and cytokine production was measured by flow cytometry and cytometric bead array, respectively. Unlike TGFβ and vitD3, the oligosaccharides 6’SL, 2’FL and GOS did not influence DC differentiation. Next, we studied the effect of 6’SL, 2’FL and GOS on maturation of moDC, VitD3DC and TGFβDC that showed different profiles of HMO-binding receptors. 6’SL, 2’FL and GOS did not modulate LPS-induced maturation, even though their putative receptors were present on the different DCs types. Thus, whereas VitD3 and TGFβ halt DC differentiation, which results in phenotypically distinct tolerogenic DCs, 6’SL, 2’FL and GOS do not alter DC differentiation or maturation of in vitro differentiated DC types.
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Affiliation(s)
- Olaf Perdijk
- Cell Biology and Immunology group, Wageningen University, Wageningen, the Netherlands
| | - R. J. Joost van Neerven
- Cell Biology and Immunology group, Wageningen University, Wageningen, the Netherlands
- FrieslandCampina, Amersfoort, the Netherlands
| | - Erik van den Brink
- Cell Biology and Immunology group, Wageningen University, Wageningen, the Netherlands
| | - Huub F. J. Savelkoul
- Cell Biology and Immunology group, Wageningen University, Wageningen, the Netherlands
| | - Sylvia Brugman
- Cell Biology and Immunology group, Wageningen University, Wageningen, the Netherlands
- * E-mail:
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55
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Evaluation of carbopol as an adjuvant on the effectiveness of progressive atrophic rhinitis vaccine. Vaccine 2018; 36:4477-4484. [DOI: 10.1016/j.vaccine.2018.06.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 06/07/2018] [Accepted: 06/09/2018] [Indexed: 12/23/2022]
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56
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Bovine Lactoferrin Modulates Dendritic Cell Differentiation and Function. Nutrients 2018; 10:nu10070848. [PMID: 29966271 PMCID: PMC6073808 DOI: 10.3390/nu10070848] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 06/19/2018] [Accepted: 06/26/2018] [Indexed: 11/16/2022] Open
Abstract
Lactoferrin is an abundant glycoprotein in bovine milk that has immunomodulatory effects on human cells. Bovine lactoferrin (LF) binds lipopolysaccharides (LPS) with high affinity and is postulated to act via TLR4-dependent and -independent mechanisms. It has been shown that LF modulates differentiation of human monocytes into tolerogenic dendritic cells. However, in a previous study, we showed that LPS also mediates differentiation into tolerogenic dendritic cells (DC). Since LF binds LPS with high affinity, it remains to be investigated whether LF or LPS is mediating these effects. We, therefore, further investigated the LPS-independent effect of LF on differentiation of human monocytes into dendritic cells (DC). Human monocytes were isolated by magnetic cell sorting from freshly isolated PBMCs and cultured for six days in the presence of IL-4 and GM-CSF with or without LF or proteinase K treated LF to generate DC. These immature DC were stimulated for 48 h with LPS or Poly I:C + R848. Cell surface marker expression and cytokine production were measured by flow cytometry. DC differentiated in the presence of LF produced higher IL-6 and IL-8 levels during differentiation and showed a lower expression of CD1a and HLA-DR. These LFDCs showed to be hyporesponsive towards TLR ligands as shown by their semi-mature phenotype and reduced cytokine production. The effect of LF was abrogated by proteinase K treatment, showing that the functional effects of LF were not mediated by LPS contamination. Thus, LF alters DC differentiation and dampens responsiveness towards TLR ligands. This study indicates that LF can play a role in immune homeostasis in the human GI tract.
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Tsukumo H, Matsunari N, Yamashita K, Kojima H, Itagaki H. Lipopolysaccharide interferes with the use of the human Cell Line Activation Test to determine the allergic potential of proteins. J Pharmacol Toxicol Methods 2018; 92:34-42. [PMID: 29438744 DOI: 10.1016/j.vascn.2018.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/23/2018] [Accepted: 02/02/2018] [Indexed: 11/24/2022]
Abstract
It was believed that high molecular weight molecules including proteins cannot penetrate the skin. However, protein penetration through disrupted/ruptured skin has been reported recently, thus carrying the potential for inducing an allergic response. We used the human Cell Line Activation Test (h-CLAT), an in vitro skin sensitization test, to assess the allergic potential of proteins by measuring levels of CD86 and CD54 in the human monocytic leukemia cell line THP-1. Six allergens including ovalbumin (OVA) and human serum albumin (HSA; negative control) upregulated CD86 and/or CD54; a false-positive result was obtained using HSA. This was caused by lipopolysaccharide (LPS) contamination. Naturally derived materials often include LPS at various concentrations and may influence protein induction of CD86 and CD54. Additionally, polymyxin B, an LPS inhibitor, could not completely overcome the effect of LPS. Therefore, if test proteins contain ≥0.1 EU/mL LPS, their allergenic potency will not be assessed accurately using h-CLAT. These data show that naturally occurring materials or those derived from living organisms should be evaluated for their LPS content. It is important to confirm the applicability of in vitro methods such as h-CLAT for assessing the allergenic potency of naturally occurring proteins; our findings can be a foundation for future studies.
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Affiliation(s)
- Hanae Tsukumo
- Department of Chemical and Energy Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan; Division of Risk Assessment, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan.
| | - Natsumi Matsunari
- University of Fukui School of Medical Sciences, 23-3, Matsuokashimoaizuki, eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan
| | - Kunihiko Yamashita
- Corporate Research Center, Daicel Corporation, 1239 Shinzaike, Aboshi-ku, Himeji, Hyogo 671-1283, Japan
| | - Hajime Kojima
- Division of Risk Assessment, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Hiroshi Itagaki
- Department of Chemical and Energy Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
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Ness T, Abdallah M, Adams J, Alvarado C, Gunn E, House B, Lamb J, Macguire J, Norris E, Robinson R, Sapp M, Sharma J, Garner R. Candida albicans-derived mannoproteins activate NF-κB in reporter cells expressing TLR4, MD2 and CD14. PLoS One 2017; 12:e0189939. [PMID: 29281684 PMCID: PMC5744952 DOI: 10.1371/journal.pone.0189939] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 12/05/2017] [Indexed: 01/10/2023] Open
Abstract
The ability of soluble C. albicans 20A (serotype A) mannoprotein (CMP) to serve as a ligand for toll-like receptor 4 (TLR4) and its co-receptors was examined using commercially available and stably-transfected HEK293 cells that express human TLR4, MD2 and CD14, but not MR. These TLR4 reporter cells also express an NF-κB-dependent, secreted embryonic alkaline phosphatase (SEAP) reporter gene. TLR4-reporter cells exhibited a dose-dependent SEAP response to both LPS and CMP, wherein peak activation was achieved after stimulation with 40–50 μg/mL of CMP. Incubation on polymyxin B resin had no effect on CMP’s ligand activity, but neutralized LPS-spiked controls. HEK293 Null cells lacking TLR4 and possessing the same SEAP reporter failed to respond to LPS or CMP, but produced SEAP when activated with TNFα. Reporter cell NF-κB responses were accompanied by transcription of IL-8, TNFα, and COX-2 genes. Celecoxib inhibited LPS-, CMP-, and TNFα-dependent NF-κB responses; whereas, indomethacin had limited effect on LPS and CMP responses. SEAP production in response to C. albicans A9 mnn4Δ mutant CMP, lacking phosphomannosylations on N-linked glycans, was significantly greater (p ≤ 0.005) than SEAP responses to CMP derived from parental A9 (both serotype B). These data confirm that engineered human cells expressing TLR4, MD2 and CD14 can respond to CMP with NF-κB activation and the response can be influenced by variations in CMP-mannosylation. Future characterizations of CMPs from other sources and their application in this model may provide further insight into variations observed with TLR4 dependent innate immune responses targeting different C. albicans strains.
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Affiliation(s)
- Traci Ness
- Department of Biology, Armstrong State University, Savannah, Georgia, United States of America
| | - Mahmud Abdallah
- Department of Biology, Armstrong State University, Savannah, Georgia, United States of America
| | - Jaime Adams
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia, United States of America
| | - Claudia Alvarado
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia, United States of America
| | - Edwin Gunn
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia, United States of America
| | - Brittany House
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia, United States of America
| | - John Lamb
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia, United States of America
| | - Jack Macguire
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia, United States of America
| | - Emily Norris
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia, United States of America
| | - Rebekah Robinson
- Department of Biology, Armstrong State University, Savannah, Georgia, United States of America
| | - Morgan Sapp
- Department of Biology, Armstrong State University, Savannah, Georgia, United States of America
| | - Jill Sharma
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia, United States of America
| | - Ronald Garner
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, Georgia, United States of America
- * E-mail:
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59
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Molino JVD, Lopes AM, Viana Marques DDA, Mazzola PG, da Silva JL, Hirata MH, Hirata RDC, Gatti MSV, Pessoa A. Application of aqueous two‐phase micellar system to improve extraction of adenoviral particles from cell lysate. Biotechnol Appl Biochem 2017; 65:381-389. [DOI: 10.1002/bab.1627] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 11/11/2017] [Indexed: 11/10/2022]
Affiliation(s)
- João Vitor Dutra Molino
- Department of Biochemical and Pharmaceutical TechnologySchool of Pharmaceutical SciencesUniversity of São Paulo São Paulo Brazil
| | - André Moreni Lopes
- Department of Bioprocess and BiotechnologySchool of Pharmaceutical SciencesSão Paulo State University Araraquara Brazil
| | | | | | - Joas Lucas da Silva
- Department of Clinical and Toxicological AnalysisSchool of Pharmaceutical SciencesUniversity of São Paulo São Paulo Brazil
| | - Mario Hiroyuki Hirata
- Department of Clinical and Toxicological AnalysisSchool of Pharmaceutical SciencesUniversity of São Paulo São Paulo Brazil
| | | | | | - Adalberto Pessoa
- Department of Biochemical and Pharmaceutical TechnologySchool of Pharmaceutical SciencesUniversity of São Paulo São Paulo Brazil
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60
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Perdijk O, van Neerven RJJ, Meijer B, Savelkoul HFJ, Brugman S. Induction of human tolerogenic dendritic cells by 3′-sialyllactose via TLR4 is explained by LPS contamination. Glycobiology 2017; 28:126-130. [PMID: 29281012 PMCID: PMC5993091 DOI: 10.1093/glycob/cwx106] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Indexed: 01/05/2023] Open
Abstract
The human milk oligosaccharide 3′-sialyllactose (3′SL) has previously been shown to activate murine dendritic cells (DC) in a Toll-like receptor (TLR) 4-mediated manner ex vivo. In this study we aimed to investigate whether 3′SL has similar immunomodulatory properties on human DC. 3′SL was shown to induce NF-κB activation via human TLR4. However, LPS was detected in the commercially obtained 3′SL from different suppliers. After the removal of LPS from 3′SL, we studied its ability to modify DC differentiation in vitro. In contrast to LPS and 3′SL, LPS-free 3′SL did not induce functional and phenotypical changes on immature DC (iDC). iDC that were differentiated in the presence of LPS or 3′SL showed a semi-mature phenotype (i.e., fewer CD83+CD86+ DC), produced IL-10 and abrogated IL-12p70 and tumor necrosis factor-alpha levels upon stimulation with several TLR ligands. Differentiation into these tolerogenic DC was completely abrogated by LPS removal from 3′SL. In contrast to previous reports in mice, we found that LPS-free 3′SL does not activate NF-κB via human TLR4. In conclusion, removing LPS from (oligo)saccharide preparations is necessary to study their potential immunomodulatory function.
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Affiliation(s)
- Olaf Perdijk
- Cell Biology and Immunology group, Wageningen University & Research, Zodiac building 122, de Elst 1, 6708 WD, Wageningen, The Netherlands
| | - R J Joost van Neerven
- Cell Biology and Immunology group, Wageningen University & Research, Zodiac building 122, de Elst 1, 6708 WD, Wageningen, The Netherlands
- FrieslandCampina, Stationsplein 4, 3818 LE, Amersfoort, The Netherlands
| | - Ben Meijer
- Cell Biology and Immunology group, Wageningen University & Research, Zodiac building 122, de Elst 1, 6708 WD, Wageningen, The Netherlands
| | - Huub F J Savelkoul
- Cell Biology and Immunology group, Wageningen University & Research, Zodiac building 122, de Elst 1, 6708 WD, Wageningen, The Netherlands
| | - Sylvia Brugman
- Cell Biology and Immunology group, Wageningen University & Research, Zodiac building 122, de Elst 1, 6708 WD, Wageningen, The Netherlands
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