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Olive oil ameliorates allergic response in murine ovalbumin-induced food allergy by promoting intestinal mucosal immunity. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Ma Y, Li J, Guo Y, Ma L, Liu Y, Kuang H, Han B, Xiao Y, Wang Y. Dietary olive oil enhances the oral tolerance of the food allergen ovalbumin in mice by regulating intestinal microecological homeostasis. J Food Biochem 2022; 46:e14297. [PMID: 35780313 DOI: 10.1111/jfbc.14297] [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: 03/03/2022] [Revised: 05/16/2022] [Accepted: 06/10/2022] [Indexed: 11/28/2022]
Abstract
Increasing evidence indicates that intestinal microecological imbalances are strongly associated with food allergen intolerance. This study investigated the effect of olive oil on food allergy susceptibility and intestinal microecology based on an ovalbumin (OVA)-sensitized mouse model. The results indicated that the allergic symptoms of sensitized mice were alleviated when they were supplemented with olive oil at 1-3 g/kg per day for 7 weeks. Intestinal epithelium observation showed repaired ileum villi and upregulated tight junction (TJ) protein expression. Furthermore, the levels of the cytokines (e.g., IL-10) secreted by regulatory T cells were increased, whereas T helper 2 (Th2) cell-associated factors were decreased in lamina propria. Furthermore, 16S rRNA sequencing indicated reduced Burkholderiaceae and increased Clostridiaceae in the intestinal microflora. The results suggest that an olive oil-enriched diet may effectively prevent food allergies by regulating the intestinal microecological balance. PRACTICAL APPLICATIONS: Recent studies emphasized that intestinal ecological imbalance, including intestinal immunity and microflora structure, plays an important role in affecting the occurrence and development of food allergy. The present results implied that olive oil, one of the main components of the Mediterranean diet, can effectively ameliorate the symptoms of OVA-induced food allergy by regulating intestinal microecological homeostasis. Therefore, dietary supplementation with olive oil may be an effective strategy for preventing food allergies.
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Affiliation(s)
- Yu Ma
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, People's Republic of China
| | - Jie Li
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, People's Republic of China
| | - Yuanjie Guo
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, People's Republic of China
| | - Liyuan Ma
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, People's Republic of China
| | - Yixiang Liu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, People's Republic of China.,Collaborative Innovation Center of Provincial and Ministerial Co-construction for Marine Food Deep Processing, Dalian Polytechnic University, Dalian, People's Republic of China
| | - Huiying Kuang
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, People's Republic of China
| | - Bing Han
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, People's Republic of China
| | - Yingliang Xiao
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, People's Republic of China
| | - Yanbo Wang
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, People's Republic of China.,School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, People's Republic of China
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Iwanaga T, Takahashi-Iwanaga H. Disposal of intestinal apoptotic epithelial cells and their fate via divergent routes. Biomed Res 2022; 43:59-72. [PMID: 35718446 DOI: 10.2220/biomedres.43.59] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Gut epithelial cells are characterized by rapid, constant cell renewal. The disposal of aging epithelial cells around the villus tips of the small intestine occurs so regularly that it has been regarded as a consequence of well-controlled cell death, designated as apoptosis. However, the notion of live cell extrusion in the intestine has been intensively built among researchers, and the disposal processes of effete epithelial cells display species and regional differences. Chemical mediators and mechanical forces rising from surrounding cells contribute to the regulated cell replacement. Cytotoxic intraepithelial lymphocytes and lamina propria macrophages play a leading role in the selection of disposal cells and their extrusion to maintain fully the epithelial homeostasis in tandem with the dynamic reconstruction of junctional devices. Lymphocyte-mediated cell killing is predominant in the mouse and rat, while the disposal of epithelial cells in the guinea pig, monkey, and human is characterized by active phagocytosis by subepithelially gathering macrophages. The fenestrated basement membrane formed by immune cells supports their involvement and explains species differences in the disposal of epithelial cells. Via these fenestrations, macrophages and dendritic cells can engulf apoptotic epithelial cells and debris and convey substantial information to regional lymph nodes. In this review, we attempt to focus on morphological aspects concerning the apoptosis and disposal process of effete epithelial cells; in vitro or ex vivo analyses using cultured monolayer has become predominant in recent studies concerning the exfoliation of apoptotic enterocytes. Furthermore, we give attention to their species differences, which is controversial but crucial to our understanding.
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Affiliation(s)
- Toshihiko Iwanaga
- Department of Anatomy, Hokkaido University Graduate School of Medicine
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Li J, Zou C, Liu Y. Amelioration of Ovalbumin-Induced Food Allergy in Mice by Targeted Rectal and Colonic Delivery of Cyanidin-3-O-Glucoside. Foods 2022; 11:foods11111542. [PMID: 35681291 PMCID: PMC9180400 DOI: 10.3390/foods11111542] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/19/2022] [Accepted: 05/21/2022] [Indexed: 02/04/2023] Open
Abstract
Targeted rectal and colonic delivery is an effective strategy to exploit the biological functions of polyphenols. This work investigated the anti-food allergy (FA) activity of cyanidin-3-O-glucoside (C3G) delivered by enteric sodium alginate in vivo. The results showed that through targeted rectal and colonic delivery, the C3G showed better results in ameliorating clinical allergic symptoms, diarrhea, and serological indicators including ovalbumin-specific IgE, histamine, and mast cell protease-1. The C3G was more efficient in enhancing the intestinal epithelial barrier by up-regulating the tight junction protein expression and promoting secretory IgA and β-defensin secretion. The improved bioactivity in regulating T helper (Th)1/Th2 immune balance in the intestinal mucosa was also observed. Compared with the intestinal microbiota structure of the model group, targeted rectal and colonic delivery of C3G was able to bring the abundance of Bacteroidota and Firmicutes close to the levels found in normal mice. Furthermore, there was an evident increase in beneficial bacteria in the intestinal flora, such as Lactobacillus and Odoribacter, and a decrease in pathogenic bacteria like Helicobacter and Turicibacter. Therefore, the anti-FA activity of C3G could be increased via targeted rectal and colonic delivery, while the mechanism might be attributed to the regulation of intestinal microecological homeostasis.
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Affiliation(s)
- Jie Li
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China;
| | - Chao Zou
- Gaoan Public Inspection and Testing Center, Gao’an 330800, China;
| | - Yixiang Liu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China;
- Collaborative Innovation Center of Provincial and Ministerial Co-Construction for Marine Food Deep Processing, Dalian Polytechnic University, Dalian 116034, China
- Correspondence:
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Sato M, Morita K, Azumi R, Mizutani Y, Hayatsu M, Ushiki T, Terai S. Diet-related changes of basal lamina fenestrations in the villous epithelium of the rat small intestine: Statistical analysis on scanning electron microscopy. Biomed Res 2022; 43:11-22. [PMID: 35173112 DOI: 10.2220/biomedres.43.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The epithelial basal lamina of the small intestine has numerous fenestrations for intraepithelial migration of leukocytes. We have reported dynamic changes of fenestrations in dietary conditions. To investigate this phenomenon, we performed statistical analyses using scanning electron microscopy images of the epithelial basal lamina of rat intestinal villi after removal of the villous epithelium by osmium maceration. We examined structural changes in the number and size of fenestrations in the rat jejunum and ileum under fasted and fed states for 24 h. Our findings revealed that, in the jejunum, the number of free cells migrating into the epithelium through fenestrations increased from 2 h after feeding, resulting in an increase in the fenestration size of intestinal villi; the number of free cells then tended to decrease at 6 h after feeding, and the fenestration size also gradually decreased. By contrast, the increase in the fenestration size by feeding was not statistically significant in the ileum. These findings indicate that the number of migrating cells increases in the upper part of the small intestine under dietary conditions, which may influence the absorption efficiency of nutrients including lipids, as well as the induction of nutrient-induced inflammation.
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Affiliation(s)
- Masatoshi Sato
- Division of Gastroenterology and Hepatology, Niigata University Graduate School of Medical and Dental Sciences.,Division of Microscopic Anatomy, Niigata University Graduate School of Medical and Dental Sciences
| | - Keisuke Morita
- Division of Gastroenterology and Hepatology, Niigata University Graduate School of Medical and Dental Sciences
| | - Rie Azumi
- Division of Gastroenterology and Hepatology, Niigata University Graduate School of Medical and Dental Sciences
| | - Yusuke Mizutani
- Division of Microscopic Anatomy, Niigata University Graduate School of Medical and Dental Sciences.,Office of Institutional Research, Hokkaido University
| | - Manabu Hayatsu
- Division of Microscopic Anatomy, Niigata University Graduate School of Medical and Dental Sciences
| | - Tatsuo Ushiki
- Division of Microscopic Anatomy, Niigata University Graduate School of Medical and Dental Sciences
| | - Shuji Terai
- Division of Gastroenterology and Hepatology, Niigata University Graduate School of Medical and Dental Sciences
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Ma Y, Zhang Q, Liu W, Chen Z, Zou C, Fu L, Wang Y, Liu Y. Preventive Effect of Depolymerized Sulfated Galactans from Eucheuma serra on Enterotoxigenic Escherichia coli-Caused Diarrhea via Modulating Intestinal Flora in Mice. Mar Drugs 2021; 19:80. [PMID: 33535475 PMCID: PMC7912752 DOI: 10.3390/md19020080] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 12/11/2022] Open
Abstract
In this work, the preventive effect of depolymerized sulfated polysaccharides from Eucheuma serra (DESP) on bacterial diarrhea by regulating intestinal flora was investigated in vivo. Based on the enterotoxigenic Escherichia coli (ETEC)-infected mouse diarrhea model, DESP at doses ranging from 50 mg/kg to 200 mg/kg alleviated weight loss and decreased the diarrhea rate and diarrhea index. Serological tests showed that the levels of inflammation-related factors were effectively suppressed. Furthermore, the repaired intestinal mucosa was verified by morphology and pathological tissue section observations. Compared with the model group, the richness and diversity of the intestinal flora in the DESP group increased according to the 16S rRNA high-throughput sequencing of the gut microbiota. Specifically, Firmicutes and Actinobacteria increased, and Proteobacteria decreased after DESP administration. At the family level, DESP effectively improved the abundance of Lactobacillaceae, Bifidobacteriaceae, and Lachnospiraceae, while significantly inhibiting the growth of Enterobacteriaceae. Therefore, the antimicrobial diarrhea function of DESP may be related to the regulation of intestinal microbiota.
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Affiliation(s)
- Yu Ma
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.M.); (Q.Z.); (W.L.); (Z.C.); (C.Z.); (Y.W.)
| | - Qian Zhang
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.M.); (Q.Z.); (W.L.); (Z.C.); (C.Z.); (Y.W.)
| | - Wenqiang Liu
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.M.); (Q.Z.); (W.L.); (Z.C.); (C.Z.); (Y.W.)
| | - Zhaohua Chen
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.M.); (Q.Z.); (W.L.); (Z.C.); (C.Z.); (Y.W.)
| | - Chao Zou
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.M.); (Q.Z.); (W.L.); (Z.C.); (C.Z.); (Y.W.)
| | - Linglin Fu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China;
| | - Yanbo Wang
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.M.); (Q.Z.); (W.L.); (Z.C.); (C.Z.); (Y.W.)
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China;
| | - Yixiang Liu
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.M.); (Q.Z.); (W.L.); (Z.C.); (C.Z.); (Y.W.)
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Depolymerized sulfated galactans from Eucheuma serra ameliorate allergic response and intestinal flora in food allergic mouse model. Int J Biol Macromol 2020; 166:977-985. [PMID: 33144260 DOI: 10.1016/j.ijbiomac.2020.10.254] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/28/2020] [Accepted: 10/30/2020] [Indexed: 11/20/2022]
Abstract
The ameliorative effect of depolymerized sulfated polysaccharides from Eucheuma serra (DESP) on ovalbumin (OVA)-caused induced food allergy was investigated in this work. Results showed that OVA stimulated the secretion of allergy-related cytokines (OVA-specific IgE, mMCP-1, IgA, TNF-α) and led to diarrhea, intestinal epithelial damage, and intestinal microflora dysbiosis in sensitized mice. After the administration of DESP, however, the anaphylactic symptoms (shortness of breath, hypothermia, diarrhea), along with the allergy-related cytokines, were effectively suppressed. Moreover, the reduced intestinal inflammation was discovered in the DESP-treated group. Additionally, 16S rRNA sequencing of fecal samples was performed, and gene count and α-diversity analysis revealed that DESP improved microbial community richness. Taxonomic composition analysis showed that DESP modulated the proportion of Firmicutes and Bacteroidetes/Proteobacteria. Particularly, DESP increased probiotics (Lactobacillaceae, Bifidobacteriaceae and Prevotellaceae) and decreased pathogenic bacteria (Helicobacteraceae and Desulfovibrionaceae). These findings, therefore, suggest that DESP may ameliorate food allergy through the regulation of intestinal microbiota.
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Sulfated oligosaccharide of Gracilaria lemaneiformis protect against food allergic response in mice by up-regulating immunosuppression. Carbohydr Polym 2020; 230:115567. [DOI: 10.1016/j.carbpol.2019.115567] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 10/27/2019] [Accepted: 11/01/2019] [Indexed: 12/22/2022]
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Morita K, Azumi R, Sato M, Mizutani Y, Hayatsu M, Terai S, Ushiki T. Dynamic changes in basal lamina fenestrations in rat intestinal villous epithelium under high-fat diet condition. Biomed Res 2019; 40:57-66. [PMID: 30982801 DOI: 10.2220/biomedres.40.57] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The basal lamina of the villous epithelium in the small intestine has numerous fenestrations, which are produced by leukocytes for their intraepithelial migration. We previously showed that these fenestrations change due to the dynamics of migrating leukocytes in response to dietary conditions and suggested the possibility that this change is related to the regulation of the absorption of large-sized nutrients such as chylomicrons. The present study was, thus, designed to investigate structural changes in basal lamina fenestrations in response to a high-fat diet. The ultrastructure of the intestinal villi in the rat upper jejunum was investigated by electron microscopy of tissue sections in both the normal and the high-fat diet groups, and the fenestrations in the villous epithelium of rat upper jejunum were studied by scanning electron microscopy of osmium macerated/ ultrasonicated tissues. The present study showed that free cells adhering to the fenestrations increased in the upper jejunum two hours after feeding high-fat diet and the size of the fenestrations in this region also increased after feeding high-fat diet for 2 days. This enlargement of fenestrations may play an important role in increasing the efficiency of lipid absorption by facilitating the movement of chylomicrons from the intercellular space to the lamina propria.
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Affiliation(s)
- Keisuke Morita
- Division of Gastroenterology, Niigata University Graduate School of Medical and Dental Sciences.,Division of Microscopic Anatomy, Niigata University Graduate School of Medical and Dental Sciences
| | - Rie Azumi
- Division of Gastroenterology, Niigata University Graduate School of Medical and Dental Sciences
| | - Masatoshi Sato
- Division of Gastroenterology, Niigata University Graduate School of Medical and Dental Sciences.,Division of Microscopic Anatomy, Niigata University Graduate School of Medical and Dental Sciences
| | - Yusuke Mizutani
- Division of Microscopic Anatomy, Niigata University Graduate School of Medical and Dental Sciences
| | - Manabu Hayatsu
- Division of Microscopic Anatomy, Niigata University Graduate School of Medical and Dental Sciences
| | - Shuji Terai
- Division of Gastroenterology, Niigata University Graduate School of Medical and Dental Sciences
| | - Tatsuo Ushiki
- Division of Microscopic Anatomy, Niigata University Graduate School of Medical and Dental Sciences
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