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Qu QY, Song XY, Lin L, Gong ZH, Xu W, Xiao WJ. L-Theanine Modulates Intestine-Specific Immunity by Regulating the Differentiation of CD4+ T Cells in Ovalbumin-Sensitized Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:14851-14863. [PMID: 36394825 DOI: 10.1021/acs.jafc.2c06171] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Ovalbumin (OVA), a common food protein, can cause deadly allergies with intestine-specific immune reactions. L-Theanine (LTA) shows great potential for regulating intestinal immunity. To investigate the regulatory effect of LTA intervention on intestine-specific immunity, a 41 day experiment was performed on BALB/c OVA-sensitized mice. The results show that injecting female mice intraperitoneally with 50 μg of OVA and administering 30 mg of OVA 4 times can successfully establish an OVA-sensitized mouse model. LTA intervention significantly increased weight gain and thymus index (p < 0.05), decreased allergy and diarrhea scores (p < 0.05), and improved jejunum structure. Meanwhile, the histological score and degranulation of mast cells decreased. LTA intervention increased Clostridiales, Lachnospiraceae, Lactobacillus, Prevotella, and Ruminococcus abundance while decreasing Helicobacter abundance. Flow cytometry and Western blotting results indicated that 200 and 400 mg/kg of LTA upregulated the expression of T-bet and Foxp3 proteins (p < 0.05), thus promoting the differentiation of jejunum CD4+ T cells to Th1 and Tregs and increasing the cytokines IFN-γ, IL-10, and TGF-β (p < 0.05). We found that 200 and 400 mg/kg of LTA downregulated the expression of RORγt and GATA3, thus inhibiting the differentiation of Th2 and Th17 cells and decreasing cytokines IL-4, IL-5, IL-13 TNF-α, IL-6, and IL-17A (p < 0.05). LTA inhibited the degranulation of mast cells and significantly decreased the serum levels of OVA-IgE, HIS, and mouse MCPT-1 (p < 0.05). Therefore, LTA intervention alleviated OVA allergy by improving intestine-specific immunity.
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Affiliation(s)
- Qing-Yun Qu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, Hunan 410128, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
| | - Xian-Ying Song
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, Hunan 410128, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
| | - Ling Lin
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, Hunan 410128, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
| | - Zhi-Hua Gong
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, Hunan 410128, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
| | - Wei Xu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, Hunan 410128, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
| | - Wen-Jun Xiao
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, Hunan 410128, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
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Cortés HD, Gómez FA, Marshall SH. The Phagosome-Lysosome Fusion Is the Target of a Purified Quillaja saponin Extract (PQSE) in Reducing Infection of Fish Macrophages by the Bacterial Pathogen Piscirickettsia salmonis. Antibiotics (Basel) 2021; 10:antibiotics10070847. [PMID: 34356768 PMCID: PMC8300623 DOI: 10.3390/antibiotics10070847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/26/2021] [Accepted: 06/28/2021] [Indexed: 12/20/2022] Open
Abstract
Piscirickettsia salmonis, the etiological agent of Piscirickettsiosis, is a Gram-negative and facultative intracellular pathogen that has affected the Chilean salmon industry since 1989. The bacterium is highly aggressive and can survive and replicate within fish macrophages using the Dot/Icm secretion system to evade the host’s immune response and spread systemically. To date, no efficient control measures have been developed for this disease; therefore, the producers use large amounts of antibiotics to control this pathogen. In this frame, this work has focused on evaluating the use of saponins from Quillaja saponaria as a new alternative to control the Piscirickettsiosis. It has been previously reported that purified extract of Q. saponaria (PQSE) displays both antimicrobial activity against pathogenic bacteria and viruses and adjuvant properties. Our results show that PQSE does not present antimicrobial activity against P. salmonis, although it reduces P. salmonis infection in an in vitro model, promoting the phagosome–lysosome fusion. Additionally, we demonstrate that PQSE modulates the expression of IL-12 and IL-10 in infected cells, promoting the immune response against the pathogen and reducing the expression of pathogen virulence genes. These results together strongly argue for specific anti-invasion and anti-intracellular replication effects induced by the PQSE in macrophages.
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Song J, Li Y, Li J, Wang H, Zhang Y, Suo H. Lactobacillus rhamnosus 2016SWU.05.0601 regulates immune balance in ovalbumin-sensitized mice by modulating expression of the immune-related transcription factors and gut microbiota. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:4930-4939. [PMID: 32478427 DOI: 10.1002/jsfa.10554] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/13/2020] [Accepted: 06/01/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Probiotics regulate host immune balance, which may reduce immune-related diseases. The effects and mechanisms of Lactobacillus rhamnosus 2016SWU.05.0601 (Lr-0601) on the immune response in ovalbumin (OVA)-sensitized mice were explored. RESULTS Lr-0601 reduced serum immunoglobulin (Ig)E and OVA-IgE and attenuated the alteration in lung pathology in OVA-sensitized mice. Lr-0601 blocked OVA-induced up-regulation in serum T helper (Th) 2 and Th17 cytokines but increased the serum levels of Th1 and regulatory T (Treg) cytokines in OVA-sensitized mice. OVA also markedly reduced the protein levels of spleen T-box transcription factor and forkhead/winged helix transcription factor p3, leading to the reduced mRNA expression of interferon-γ and interleukin (IL)-10. By contrast, OVA markedly increased the protein expression of spleen GATA-binding protein 3 and retinoid-related orphan receptor γt, as well as the mRNA expression of spleen IL-4 and IL-17. These changes induced by OVA were reversed by Lr-0601. Moreover, Lr-0601 helped alleviate OVA-induced intestinal microbiota dysbiosis. A correlation was found between specific genera and immune-associated cytokines. CONCLUSION The combined results indicate that Lr-0601 modulated the balance of Th1/Th2 and Treg/Th17 in OVA-sensitized mice, which was associated with the regulation of immune-related transcription factors and gut microbiota. Lr-0601 can potentially be used as a probiotic for preventing immune-related diseases. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Jiajia Song
- College of Food Science, Southwest University, Chongqing, China
| | - Yang Li
- College of Food Science, Southwest University, Chongqing, China
| | - Jian Li
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China
| | - Hongwei Wang
- College of Food Science, Southwest University, Chongqing, China
| | - Yu Zhang
- College of Food Science, Southwest University, Chongqing, China
| | - Huayi Suo
- College of Food Science, Southwest University, Chongqing, China
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Ilina T, Kashpur N, Granica S, Bazylko A, Shinkovenko I, Kovalyova A, Goryacha O, Koshovyi O. Phytochemical Profiles and In Vitro Immunomodulatory Activity of Ethanolic Extracts from Galium aparine L. PLANTS (BASEL, SWITZERLAND) 2019; 8:E541. [PMID: 31775336 PMCID: PMC6963662 DOI: 10.3390/plants8120541] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 11/15/2019] [Accepted: 11/17/2019] [Indexed: 11/24/2022]
Abstract
Galium aparine L., family Rubiaceae, is a widely spread species in the Galium genus. The herb of G. aparine is part of folk remedies and dietary supplements. In this study, we analyzed the chemical composition and immunomodulatory activities of G. aparine herb ethanolic extracts obtained from the plant material by maceration with 20%, 60% or 96% ethanol. The contents of hydroxycinnamic acid derivatives, flavonoids and polyphenols were determined spectrophotometrically, with extractives and polysaccharides quantified gravimetrically. The qualitative composition was studied using UHPLC-DAD-MS/MS analysis; isolation not previously described in G. aparine quercetin rhamnoglucoside was carried out through column chromatography, and the immunomodulatory activity of extracts was determined in the reaction of lymphocyte blast transformation. Major constitutes of extracts were iridoids, i.e., monotropein, 10-desacetylasperulosidic acid and asperulosidic acid; p-hydroxybenzoic acid; hydroxycinnamic acid derivatives, i.e., 3-O-caffeoylquinic, 5-O-caffeoylquinic, 3,4-O-dicaffeoylquinic, 3,5-O-dicaffeoylquinic, 4,5-O-dicaffeoylquinic acids and caffeic acid derivatives; flavonoids, i.e., rutin, quercetin 3-O-rhamnoglucoside-7-O-glucoside, and isorhamnetin 3-O-glucorhamnoside. Significantly, quercetin 3-O-rhamnoglucoside-7-O-glucoside was first isolated and identified in Galium species so far investigated. All G. aparine herb ethanolic extracts stimulate the transformational activity of immunocompetent blood cells, with 96% ethanolic extract being the most active. The data obtained necessitate further research into the mechanisms of immunomodulatory activity of extracts from G. aparine herb.
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Affiliation(s)
- Tetiana Ilina
- National University of Pharmacy, 53-Pushkinska str., 61002 Kharkiv, Ukraine; (T.I.); (I.S.); (A.K.); (O.G.); (O.K.)
| | - Natalia Kashpur
- Mechnikov Institute of Microbiology and Immunology, National Academy of Medical Sciences of Ukraine, 14/16-Pushkinska str., 61057 Kharkiv, Ukraine;
| | - Sebastian Granica
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Medical University of Warsaw, 1 Banacha str., 02-097 Warsaw, Poland;
| | - Agnieszka Bazylko
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Medical University of Warsaw, 1 Banacha str., 02-097 Warsaw, Poland;
| | - Igor Shinkovenko
- National University of Pharmacy, 53-Pushkinska str., 61002 Kharkiv, Ukraine; (T.I.); (I.S.); (A.K.); (O.G.); (O.K.)
| | - Alla Kovalyova
- National University of Pharmacy, 53-Pushkinska str., 61002 Kharkiv, Ukraine; (T.I.); (I.S.); (A.K.); (O.G.); (O.K.)
| | - Olga Goryacha
- National University of Pharmacy, 53-Pushkinska str., 61002 Kharkiv, Ukraine; (T.I.); (I.S.); (A.K.); (O.G.); (O.K.)
| | - Oleh Koshovyi
- National University of Pharmacy, 53-Pushkinska str., 61002 Kharkiv, Ukraine; (T.I.); (I.S.); (A.K.); (O.G.); (O.K.)
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Lebetwa N, Suzuki Y, Tanaka S, Nakamura S, Katayama S. Enhanced Anti-Allergic Activity of Milk Casein Phosphopeptide by Additional Phosphorylation in Ovalbumin-Sensitized Mice. Molecules 2019; 24:molecules24040738. [PMID: 30791382 PMCID: PMC6412743 DOI: 10.3390/molecules24040738] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/11/2019] [Accepted: 02/17/2019] [Indexed: 01/07/2023] Open
Abstract
The proteolytic digest of milk casein, known as casein phosphopeptide (CPP-III), exhibits diverse biological activities, including calcium absorption and antioxidant activities. We hypothesized that the additional phosphorylation of this peptide can enhance its immunomodulatory activity such as suppression of allergy-associated cytokine and antigen-specific immune response. This study was conducted to assess whether oral intake of additionally phosphorylated CPP-III (P-CPP) attenuates ovalbumin (OVA)-induced IgE-mediated allergic reactions because of the additional phosphate groups. Female BALB/c mice were intraperitoneally sensitized with OVA twice at intervals of 14 days and then orally fed native CPP-III (N-CPP), P-CPP, and dephosphorylated CPP-III (D-CPP) for 6 weeks. Next, the mice were orally challenged with 50 mg of OVA. Oral administration of P-CPP suppressed total and specific IgE levels in the serum. Mice fed P-CPP exhibited low levels of OVA-specific IgG1 and increased OVA-specific IgG2a. P-CPP also suppressed IL-4 production, while D-CPP showed similar a level compared to that of the control. Further, P-CPP increased the population of the T follicular helper (Tfh) cell in the spleen. These results suggest that additional phosphorylation of CPP can enhance the attenuation of allergen-specific IgE-modulated allergic reactions in a murine food allergy model.
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Affiliation(s)
- Ntshepisa Lebetwa
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, 8304 Minamiminowa, Ina, Nagano 399-4598, Japan.
- Department of Agricultural Research, Animal Production and Range research Division, Ministry of Agriculture, Private bag 0033, Gaborone BO320, Botswana.
| | - Yuta Suzuki
- Faculty of Agriculture, Shinshu University, 8304 Minamiminowa, Ina, Nagano 399-4598, Japan.
| | - Sachi Tanaka
- Faculty of Agriculture, Shinshu University, 8304 Minamiminowa, Ina, Nagano 399-4598, Japan.
| | - Soichiro Nakamura
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, 8304 Minamiminowa, Ina, Nagano 399-4598, Japan.
- Faculty of Agriculture, Shinshu University, 8304 Minamiminowa, Ina, Nagano 399-4598, Japan.
| | - Shigeru Katayama
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, 8304 Minamiminowa, Ina, Nagano 399-4598, Japan.
- Faculty of Agriculture, Shinshu University, 8304 Minamiminowa, Ina, Nagano 399-4598, Japan.
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Fleck JD, Betti AH, da Silva FP, Troian EA, Olivaro C, Ferreira F, Verza SG. Saponins from Quillaja saponaria and Quillaja brasiliensis: Particular Chemical Characteristics and Biological Activities. Molecules 2019; 24:E171. [PMID: 30621160 PMCID: PMC6337100 DOI: 10.3390/molecules24010171] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/13/2018] [Accepted: 12/28/2018] [Indexed: 12/21/2022] Open
Abstract
Quillaja saponaria Molina represents the main source of saponins for industrial applications. Q. saponaria triterpenoids have been studied for more than four decades and their relevance is due to their biological activities, especially as a vaccine adjuvant and immunostimulant, which have led to important research in the field of vaccine development. These saponins, alone or incorporated into immunostimulating complexes (ISCOMs), are able to modulate immunity by increasing antigen uptake, stimulating cytotoxic T lymphocyte production (Th1) and cytokines (Th2) in response to different antigens. Furthermore, antiviral, antifungal, antibacterial, antiparasitic, and antitumor activities are also reported as important biological properties of Quillaja triterpenoids. Recently, other saponins from Q. brasiliensis (A. St.-Hill. & Tul.) Mart. were successfully tested and showed similar chemical and biological properties to those of Q. saponaria barks. The aim of this manuscript is to summarize the current advances in phytochemical and pharmacological knowledge of saponins from Quillaja plants, including the particular chemical characteristics of these triterpenoids. The potential applications of Quillaja saponins to stimulate further drug discovery research will be provided.
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Affiliation(s)
- Juliane Deise Fleck
- Molecular Microbiology Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo 93525-075, RS, Brazil.
| | - Andresa Heemann Betti
- Bioanalysis Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo 93525-075, RS, Brazil.
| | - Francini Pereira da Silva
- Molecular Microbiology Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo 93525-075, RS, Brazil.
| | - Eduardo Artur Troian
- Molecular Microbiology Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo 93525-075, RS, Brazil.
| | - Cristina Olivaro
- Science and Chemical Technology Department, University Center of Tacuarembó, Udelar, Tacuarembó 45000, Uruguay.
| | - Fernando Ferreira
- Organic Chemistry Department, Carbohydrates and Glycoconjugates Laboratory, Udelar, Mondevideo 11600, Uruguay.
| | - Simone Gasparin Verza
- Molecular Microbiology Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo 93525-075, RS, Brazil.
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Tanaka M, Watanabe H, Yoshimoto Y, Kozai H, Okamoto T. Anti-allergic effects of His-Ala-Gln tripeptide in vitro and in vivo. Biosci Biotechnol Biochem 2016; 81:380-383. [PMID: 27728999 DOI: 10.1080/09168451.2016.1243984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
We examined the inhibitory effects of HAQ (His-Ala-Gln) peptide on type-1 allergy in vitro and in vivo. HAQ peptide inhibited β-hexosaminidase release and intracellular Ca2+ levels of rat basophilic leukemia RBL-2H3 cells. Oral administration of a HAQ peptide-added diet (1 mg/mouse/administration) to C3H/HeJ mice for 14 days led to significant suppression of allergic symptoms, but did not reduce allergen-specific IgE or IgG1.
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Affiliation(s)
- Mamoru Tanaka
- a Department of Nutrition , University of Kochi , Kochi , Japan
| | | | - Yoshinobu Yoshimoto
- b Department of Physical Therapy , Seirei Christopher University , Hamamatsu , Japan
| | - Hana Kozai
- c College of Bioscience and Biotechnology , Chubu University , Kasugai , Japan
| | - Takeaki Okamoto
- d Faculty of Education , Ehime University , Matsuyama , Japan
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Verma AK, Kumar S, Sharma A, Kumar D, Roy R, Gupta RK, Chaudhari BP, Giridhar B, Das M, Dwivedi PD. Allergic manifestation by black gram (Vigna mungo) proteins in allergic patients, BALB/c mice and RBL-2H3 cells. Int Immunopharmacol 2014; 23:92-103. [DOI: 10.1016/j.intimp.2014.08.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 07/15/2014] [Accepted: 08/04/2014] [Indexed: 12/30/2022]
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Verma AK, Kumar S, Chaudhari BP, Tuteja N, Das M, Dwivedi PD. Allergenicity assessment of genetically-modified tobacco expressing salt tolerance cbl gene. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2014; 69:209-15. [PMID: 25106468 DOI: 10.1007/s11130-014-0435-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
It is mandatory to assess the allergenic potential of genetically modified (GM) crops before their commercialization. Recently, a transgene [Calcineurin B-like (CBL) protein] has been introduced into tobacco plant to make the crop salt resistance. Therefore, it was felt necessary to assess the allergenic potential of the cbl gene product, which was introduced and expressed in Nicotiana tabacum (tobacco) plant and compared the allergenic effects with the wild-type (WT) counterpart. Bioinformatic analysis revealed that there was no significant sequence homology with known allergens. Also, no difference between the protein digestibility profiles of GM and WT tobacco was found. Rapid digestion of CBL protein (Mol Wt 35 kDa) by simulated gastric fluid (SGF) indicated reduced chances of this protein to induce allergenicity. In addition, BALB/c mice sensitized by intraperitoneal administration of WT and GM tobacco protein showed comparable levels of clinical score, specific IgE, IgG1, histamine level, similar effect on different organs as well as IgE binding proteins. These findings indicate that insertion of cbl gene in tobacco did not cause any additional allergic risk to consumer and the GM and native tobacco proteins behave similarly in both in vitro and in vivo situations even after genetic modification.
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Affiliation(s)
- Alok Kumar Verma
- Food, Drug and Chemical Toxicology Group, CSIR-Indian Institute of Toxicology Research , P. O. Box-80, Mahatma Gandhi Marg, Lucknow, 226 001, UP, India
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Effects of S. officinalis L. radix triterpene glycosides on innate immunity factors. Bull Exp Biol Med 2014; 156:366-9. [PMID: 24771377 DOI: 10.1007/s10517-014-2350-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Indexed: 12/17/2022]
Abstract
The effects of triterpene glycosides (saponins) extracted from Saponaria officinalis L. radices, on the cellular and humoral innate immunity factors were studied. Saponins stimulated the phagocytic, bactericidal, and adhesion activities of polymorphonuclear leukocytes. Optimal conditions of saponin treatment (dose and duration) were determined for mice. Saponins promoted the maturation of human peripheral blood dendritic cells, which was proven by high expression of CD83 (terminal differentiation marker) and CD86 (bone-stimulating molecule) and of HLA-DR and HLA-ABC molecules on the cell membrane. Saponins modulated the production of TNF-α, IL-1β, IL-4, IL-6, and IFN-γ in cultured peripheral blood intact cells. The results help to understand some mechanisms of the effects of saponins extracted from Saponaria officinalis L. radix on the cellular and humoral factors of innate immunity and demonstrate good prospects of their practical use.
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Inhibitory effects of Quillaja saponin on IgE-mediated degranulation of rat basophilic leukemia RBL-2H3 Cells. J Funct Foods 2012. [DOI: 10.1016/j.jff.2012.06.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Kumar S, Verma AK, Misra A, Tripathi A, Chaudhari BP, Prasad R, Jain S, Das M, Dwivedi PD. Allergenic responses of red kidney bean (Phaseolus vulgaris cv chitra) polypeptides in BALB/c mice recognized by bronchial asthma and allergic rhinitis patients. Food Res Int 2011. [DOI: 10.1016/j.foodres.2011.06.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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13
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Schouten B, van Esch BCAM, Hofman GA, van Doorn SACM, Knol J, Nauta AJ, Garssen J, Willemsen LEM, Knippels LMJ. Cow milk allergy symptoms are reduced in mice fed dietary synbiotics during oral sensitization with whey. J Nutr 2009; 139:1398-403. [PMID: 19474160 DOI: 10.3945/jn.109.108514] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Cow milk allergy is the most common food allergy in children. So far, no effective treatment is available to prevent or cure food allergy. The purpose of this study was to compare effects of dietary supplementation with a prebiotic mixture (Immunofortis), a probiotic strain [Bifidobacterium breve M-16V], or a synbiotic diet combining both on the outcome of the allergic response when provided during oral sensitization with whey in mice. Mice were fed diets containing 2% (wt:wt) Immunofortis and/or the B. breve M-16V (n = 6/group). The acute allergic skin response was determined by measuring ear swelling. Antigen-induced anaphylaxis was scored. Furthermore, whey-specific serum immunoglobulins and mouse mast cell protease-1 (mMCP-1) were determined. In mice fed the synbiotic mixture, the allergic skin response and the anaphylactic reaction were strongly reduced compared with whey-sensitized mice fed the control diet (P < 0.01). Immunofortis or B. breve M-16V alone were significantly less effective in reducing the allergic skin response than the synbiotic diet and did not reduce the anaphylactic reaction. The whey-specific IgE and IgG(1) responses were not affected; however, IgG(2a) was greater in all treated groups than in the control group (P < 0.05). Serum mMCP-1 concentrations, reflecting mucosal mast cell degranulation, were lower in mice fed synbiotics compared with those fed the control diet (P < 0.01). Dietary supplementation with Immunofortis, B. breve M-16V, and particularly the synbiotic mixture, provided during sensitization, reduces the allergic effector response in a murine model of IgE-mediated hypersensitivity that mimics the human route of sensitization. This model shows the potential for dietary intervention with synbiotics in reducing the allergic response to food allergens.
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Affiliation(s)
- Bastiaan Schouten
- Pharmaceutical Sciences, Pharmacology and Pathophysiology, Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, Utrecht 3584 CA, The Netherlands
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HAYASHI H, TAKEGAWA M, TSUZUKI M, MATSUZAWA K, YOSHIZAWA M, BARLA F, YUKINO T, MIEDA T, INUI H, NAKANO Y, ENOMOTO T. Effect of Administration of Adlay Leaves on 2,4,6-trinitro-1-chlorobenzene-induced Chronic Dermatitis in Mice. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2009. [DOI: 10.3136/fstr.15.525] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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15
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Fernandes AP, Costa MMS, Coelho EAF, Michalick MSM, de Freitas E, Melo MN, Luiz Tafuri W, Resende DDM, Hermont V, Abrantes CDF, Gazzinelli RT. Protective immunity against challenge with Leishmania (Leishmania) chagasi in beagle dogs vaccinated with recombinant A2 protein. Vaccine 2008; 26:5888-95. [PMID: 18786587 DOI: 10.1016/j.vaccine.2008.05.095] [Citation(s) in RCA: 134] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2008] [Revised: 05/22/2008] [Accepted: 05/26/2008] [Indexed: 11/25/2022]
Abstract
In this study, we investigated in dogs the immunogenicity and protective immunity against Leishmania (Leishmania) chagasi infection induced by vaccination with a formulation containing the recombinant A2 protein, an amastigote specific antigen, and saponin. Vaccinated animals produced significantly increased levels of total IgG and IgG2, but not IgG1 anti-A2 antibodies, and remained negative in conventional leishmaniasis serodiagnostic methods. Significantly increased IFN-gamma and low IL-10 levels were detected in vaccinated animals before and after challenge, as compared to control animals. Importantly, while the symptoms onset appeared as early as three months after infection in most control dogs, 14 months after challenge, 5 out of 7 vaccinated dogs remained asymptomatic. Therefore, immunization with rA2 antigen was immunogenic and induced partial protection in dogs, and allowed the serological differentiation between vaccinated and infected animals, an important requirement for a canine visceral leishmaniasis (CVL) vaccine.
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Affiliation(s)
- Ana Paula Fernandes
- Department of Clinical and Toxicological Analysis, School of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
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Mine Y, Yang M. Recent advances in the understanding of egg allergens: basic, industrial, and clinical perspectives. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:4874-4900. [PMID: 18543935 DOI: 10.1021/jf8001153] [Citation(s) in RCA: 118] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The emergence of egg allergy has had both industrial and clinical implications. In industrialized countries, egg allergy accounts for one of the most prevalent food hypersensitivities, especially in children. Atopic dermatitis represents the most common clinical manifestation in infancy; however, the range of clinical signs is broad and encompasses life-threatening anaphylaxis. The dominant egg allergens are proteins and are mainly present in the egg white, for example, ovalbumin, ovomucoid, ovotransferrin, and lysozyme. However, egg yolk also displays low-level allergenicity, for example, alpha-livetin. Strict avoidance of the offending food remains the most common recommendation for egg-allergic individuals. Nevertheless, the omnipresence of egg-derived components in prepackaged or prepared foods makes it difficult. Therefore, more efficient preventive approaches are investigated to protect consumers from inadvertent exposure and ensuing adverse reactions. On the one hand, commercial kits have become readily available that allow for the detection of egg contaminants at trace levels. On the other hand, attempts to produce hypoallergenic egg-containing products through food-processing techniques have met with promising results, but the approach is limited due to its potentially undesirable effects on the unique functional and sensory attributes of egg proteins. Therefore, the development of preventive or curative strategies for egg allergy remains strongly warranted. Pilot studies have suggested that oral immunotherapy (IT) with raw or cooked preparations of egg may represent a safe alternative, immediately available to allergic subjects, but remains applicable to only nonanaphylactic patients. Due to the limitations of conventional IT, novel forms of immunotherapy are sought based on information obtained from the molecular characterization of major egg allergens. In the past decade, promising approaches to the treatment and prevention of egg allergy have been explored and include, among others, the production of hypoallergenic recombinant egg proteins, the development of customized peptides, and bacterial-mediated immunotherapy. Nonspecific approaches have also been evaluated, and preliminary trials with the use of probiotic bacteria have yielded encouraging results. The current understanding of egg allergens offers novel approaches toward the making of food products safe for human consumption and the development of efficient immunotherapeutic strategies.
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Affiliation(s)
- Yoshinori Mine
- Department of Food Science, University of Guelph, Guelph, Ontario N1G2W1, Canada.
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Shoji Y, Chichester JA, Bi H, Musiychuk K, de la Rosa P, Goldschmidt L, Horsey A, Ugulava N, Palmer GA, Mett V, Yusibov V. Plant-expressed HA as a seasonal influenza vaccine candidate. Vaccine 2008; 26:2930-4. [PMID: 18440103 DOI: 10.1016/j.vaccine.2008.03.045] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2007] [Revised: 12/13/2007] [Accepted: 03/19/2008] [Indexed: 11/15/2022]
Abstract
Influenza is a globally important respiratory pathogen that causes a high degree of morbidity and mortality annually. Although current vaccines are effective against virus infection, new strategies need to be developed to satisfy the global demand for an influenza vaccine. To address this point, we have engineered and produced the full-length hemagglutinin (HA) protein from the A/Wyoming/03/03 (H3N2) strain of influenza in plants. The antigenicity of this plant-produced HA was confirmed by ELISA and single-radial immunodiffusion (SRID) assays. Immunization of mice with plant-produced HA resulted in HA-specific humoral (IgG1, IgG2a and IgG2b) and cellular (IFNgamma and IL-5) immune responses. In addition, significant serum hemagglutination inhibition (HI) and virus neutralizing (VN) antibody titers were obtained with an antigen dose as low as 5mug. These results demonstrate that plant-produced HA protein is antigenic and can induce immune responses in mice that correlate with protection.
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Affiliation(s)
- Yoko Shoji
- Fraunhofer USA Center for Molecular Biotechnology, 9 Innovation Way, Suite 200, Newark, DE 19711, USA
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