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Wang J, Wu W, Yang J, Zhang X, Wu Q, Wang C. Distinctive activation of β-galactosidase by carboxymethylated β-glucan in vitro and mechanism study: Critical role of hydrophobic and electrostatic interactions. Food Chem 2024; 448:139082. [PMID: 38537544 DOI: 10.1016/j.foodchem.2024.139082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 10/31/2023] [Accepted: 03/18/2024] [Indexed: 04/24/2024]
Abstract
β-galactosidase (lactase) is commercially important as a dietary supplement to alleviate the symptoms of lactose intolerance. This work investigated a unique activation of CMP (carboxymethylated (1 → 3)-β-d-glucan) on lactase and its mechanism by comparing it with carboxymethyl chitosan (CMCS), an inhibitor of lactase. The results illustrated that the secondary and tertiary structures of lactase were altered and its active sites exposed after complexation with CMP, and dissociation of lactase aggregates was also observed. These changes favored better accessibility of the substrate to the active sites of lactase, resulting in a maximum increase of 60.5 % in lactase activity. Furthermore, the hydrophobic and electrostatic interactions with lactase caused by the carboxymethyl group of CMP were shown to be crucial for its activation ability. Thus, the improvement of lactase activity and stability by CMP shown here is important for the development of new products in the food and pharmaceutical industries.
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Affiliation(s)
- Jingyi Wang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China
| | - Wenjuan Wu
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China
| | - Jun Yang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China
| | - Xue Zhang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China
| | - Qian Wu
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China
| | - Chao Wang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China.
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2
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Jesus S, Panão Costa J, Colaço M, Lebre F, Mateus D, Sebastião AI, Cruz MT, Alfaro-Moreno E, Borges O. Exploring the immunomodulatory properties of glucan particles in human primary cells. Int J Pharm 2024; 655:123996. [PMID: 38490404 DOI: 10.1016/j.ijpharm.2024.123996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 03/05/2024] [Accepted: 03/11/2024] [Indexed: 03/17/2024]
Abstract
The immunomodulatory properties of β-glucans have sparked interest among various medical fields. As vaccine adjuvants, glucan particles offer additional advantages as antigen delivery systems. This study reported the immunomodulatory properties of glucan particles with different size and chemical composition. The effect of glucan microparticles (GPs) and glucan nanoparticles (Glu 130 and 355 NPs) was evaluated on human immune cells. While GPs and Glu 355 NPs demonstrated substantial interaction with Dectin-1 receptor on monocytes, Glu 130 NPs exhibited reduced activation of this receptor. This observation was substantiated by blocking Dectin-1, resulting in inhibition of reactive oxygen species production induced by GPs and Glu 355 NPs. Notably, monocyte-derived dendritic cells (moDCs) stimulated by Glu 355 NPs exhibited phenotypic and functional maturation, essential for antigen cross-presentation. The immunomodulatory efficacy was investigated using an autologous mixed lymphocyte reaction (AMLR), resulting in considerable rates of lymphocyte proliferation and an intriguing profile of cytokine and chemokine release. Our findings highlight the importance of meticulously characterizing the size and chemical composition of β-glucan particles to draw accurate conclusions regarding their immunomodulatory activity. This in vitro model mimics the human cellular immune response, and the results obtained endorse the use of β-glucan-based delivery systems as future vaccine adjuvants.
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Affiliation(s)
- Sandra Jesus
- CNC-UC - Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; CIBB - Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Portugal
| | - João Panão Costa
- CNC-UC - Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; CIBB - Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Portugal
| | - Mariana Colaço
- CNC-UC - Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; CIBB - Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Portugal
| | - Filipa Lebre
- Nanosafety Group, International Iberian Nanotechnology Laboratory, Braga, Portugal
| | - Daniela Mateus
- CNC-UC - Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; CIBB - Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Portugal
| | - Ana Isabel Sebastião
- CNC-UC - Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; CIBB - Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Portugal
| | - Maria T Cruz
- CNC-UC - Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; CIBB - Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Portugal
| | | | - Olga Borges
- CNC-UC - Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; CIBB - Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Portugal.
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3
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Mesias M, Morales FJ, Caleja C, Pires TCSP, Calhelha RC, Barros L, Pereira E. Nutritional profiling, fiber content and in vitro bioactivities of wheat-based biscuits formulated with novel ingredients. Food Funct 2024; 15:4051-4064. [PMID: 38535983 DOI: 10.1039/d4fo00204k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
This study evaluated the nutritional profile and fiber content of innovative formulations of wheat-based biscuits enriched with chia seeds, carob flour and coconut sugar. The in vitro antioxidant, cytotoxic, anti-inflammatory and antimicrobial activities were also investigated to understand the potential health advantages of the incorporation of these new ingredients. The novel biscuits demonstrated significant improvements in protein and mineral content, with increases of 50% and 100% in chia biscuits, and up to 20% and 40% in carob biscuits, respectively. Fiber also notably increased, particularly in samples containing 10% carob flour, which increased four times as compared to wheat-based samples. The new ingredients exhibited antibacterial and antifungal activity, particularly against Yersinia enterocolitica (minimum inhibitory concentration 1.25 mg mL-1 in coconut sugar) and Aspergillus fumigatus (minimum inhibitory concentration/minimum fungicidal concentrations 2.5/5 mg mL-1 in chia seeds). However, the final biscuits only displayed antifungal properties. Carob flour and chia seeds had a remarkably high capacity to inhibit the formation of TBARS and promoted greater antioxidant activity in biscuit formulations, with EC50 values decreasing from 23.25 mg mL-1 (control) to 4.54 mg mL-1 (15% defatted ground chia seeds) and 1.19 mg mL-1 (10% carob flour). Only chia seeds exhibited cellular antioxidant, anti-inflammatory and cytotoxic activity, attributes that were lost when seeds were added into the biscuits. These findings highlight the potential health benefits of these ingredients, particularly when incorporated in new wheat-based formulations.
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Affiliation(s)
- Marta Mesias
- Institute of Food Science, Technology and Nutrition, ICTAN-CSIC, José Antonio Novais 6, 28040-Madrid, Spain.
- Department of Nutrition and Food Science, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n., 28040 Madrid, Spain
| | - Francisco J Morales
- Institute of Food Science, Technology and Nutrition, ICTAN-CSIC, José Antonio Novais 6, 28040-Madrid, Spain.
| | - Cristina Caleja
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Tânia C S P Pires
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Ricardo C Calhelha
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Eliana Pereira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
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Harasym J, Dziendzikowska K, Kopiasz Ł, Wilczak J, Sapierzyński R, Gromadzka-Ostrowska J. Consumption of Feed Supplemented with Oat Beta-Glucan as a Chemopreventive Agent against Colon Cancerogenesis in Rats. Nutrients 2024; 16:1125. [PMID: 38674816 DOI: 10.3390/nu16081125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Colorectal cancer (CRC) accounts for 30% of all cancer cases worldwide and is the second leading cause of cancer-related deaths. CRC develops over a long period of time, and in the early stages, pathological changes can be mitigated through nutritional interventions using bioactive plant compounds. Our study aims to determine the effect of highly purified oat beta-glucan on an animal CRC model. The study was performed on forty-five male Sprague-Dawley rats with azoxymethane-induced early-stage CRC, which consumed feed containing 1% or 3% low molar mass oat beta-glucan (OBG) for 8 weeks. In the large intestine, morphological changes, CRC signaling pathway genes (RT-PCR), and proteins (Western blot, immunohistochemistry) expression were analyzed. Whole blood hematology and blood redox status were also performed. Results indicated that the histologically confirmed CRC condition led to a downregulation of the WNT/β-catenin pathway, along with alterations in oncogenic and tumor suppressor gene expression. However, OBG significantly modulated these effects, with the 3% OBG showing a more pronounced impact. Furthermore, CRC rats exhibited elevated levels of oxidative stress and antioxidant enzyme activity in the blood, along with decreased white blood cell and lymphocyte counts. Consumption of OBG at any dose normalized these parameters. The minimal effect of OBG in the physiological intestine and the high activity in the pathological condition suggest that OBG is both safe and effective in early-stage CRC.
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Affiliation(s)
- Joanna Harasym
- Department of Biotechnology and Food Analysis, Wroclaw University of Economics and Business, 53-345 Wroclaw, Poland
| | - Katarzyna Dziendzikowska
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, 02-776 Warsaw, Poland
| | - Łukasz Kopiasz
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, 02-776 Warsaw, Poland
| | - Jacek Wilczak
- Department of Physiological Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-776 Warsaw, Poland
| | - Rafał Sapierzyński
- Department of Pathology and Veterinary Diagnostic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-776 Warsaw, Poland
| | - Joanna Gromadzka-Ostrowska
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, 02-776 Warsaw, Poland
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Nilkhet S, Mongkolpobsin K, Sillapachaiyaporn C, Wongsirojkul N, Tencomnao T, Chuchawankul S. M1 macrophages polarized by crude polysaccharides isolated from Auricularia polytricha exhibit anti-tumor effect on human breast cancer cells. Sci Rep 2024; 14:8179. [PMID: 38589471 PMCID: PMC11001921 DOI: 10.1038/s41598-024-58208-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 03/26/2024] [Indexed: 04/10/2024] Open
Abstract
Breast cancer has been reported to correlate with the infiltration of tumor-associated macrophages (TAMs) or M2-like macrophages in tumor microenvironment (TME) that could promote breast cancer progression. In contrast, M1-like macrophages displayed anti-tumor activity toward cancer. This study was focused on Auricularia polytricha (AP), a cloud ear mushroom, which has been reported for anti-tumor activity and immunomodulation. AP extracts were screened on differentiated THP-1 macrophages (M0). Results demonstrated that water extract (APW) and crude polysaccharides (APW-CP) could upregulate M1-related genes and cytokines production (IL-6, IL-1 β and TNF-α) significantly. Moreover, APW and APW-CP showed a high expression of CD86 (M1 marker) compared to M0. The NF-κB signaling pathway is crucial for pro-inflammatory gene regulation. The APW and APW-CP treatment showed the induction of the NF-κB pathway in a dose-dependent manner, which related to the β-glucan content in the extracts. Furthermore, APW-CP polarized macrophages were investigated for anti-tumor activity on human breast cancer cells (MCF-7 and MDA-MB-231). Results showed that APW-CP could inhibit the invasion of breast cancer cells and induce apoptosis. Therefore, M1 macrophages polarized by APW-CP showed anti-tumor activity against the breast cancer cells and β-glucan may be the potential M1-phenotype inducer.
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Affiliation(s)
- Sunita Nilkhet
- Program in Clinical Biochemistry and Molecular Medicine, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Immunomodulation of Natural Products Research Unit, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Kuljira Mongkolpobsin
- Department of Transfusion Medicine and Clinical Microbiology, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Immunomodulation of Natural Products Research Unit, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chanin Sillapachaiyaporn
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Nichaporn Wongsirojkul
- Department of Transfusion Medicine and Clinical Microbiology, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Immunomodulation of Natural Products Research Unit, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Tewin Tencomnao
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Siriporn Chuchawankul
- Department of Transfusion Medicine and Clinical Microbiology, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.
- Immunomodulation of Natural Products Research Unit, Chulalongkorn University, Bangkok, 10330, Thailand.
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Guo H, He X, Yu L, Tian F, Chen W, Zhai Q. Bifidobacterium adolescentis CCFM1285 combined with yeast β-glucan alleviates the gut microbiota and metabolic disturbances in mice with antibiotic-associated diarrhea. Food Funct 2024; 15:3709-3721. [PMID: 38488198 DOI: 10.1039/d3fo05421g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Antibiotic-associated diarrhea (AAD) is a self-limiting condition that can occur during antibiotic therapy. Our previous studies have found that a combination of Bacteroides uniformis and Bifidobacterium adolescentis can effectively alleviate AAD. However, the use of B. uniformis is still strictly limited. Therefore, this study attempted to use yeast β-glucan to enrich the abundance of B. uniformis in the intestine and supplement Bifidobacterium adolescentis to exert a synergistic effect. The lincomycin hydrochloride-induced AAD model was administered yeast β-glucan or a mixture of B. adolescentis CCFM1285 by gavage for one week. Subsequently, changes in the colonic histopathological structure, inflammatory factors, intestinal epithelial permeability and integrity, metabolites, and gut microbiota diversity were assessed. We found that yeast β-glucan, alone or in combination with B. adolescentis CCFM1285, can help attenuate systemic inflammation, increase the rate of tissue structural recovery, regulate metabolism, and restore the gut microbiota. Specifically, the combination of yeast β-glucan and B. adolescentis CCFM1285 was more effective in decreasing interleukin-6 levels, improving pathological changes in the colon, and upregulating occludin expression. Therefore, our study showed that the combination of yeast β-glucan and B. adolescentis CCFM1285 is an efficacious treatment for AAD.
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Affiliation(s)
- Hang Guo
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xingfei He
- Rehabilitation Hospital of Huishan District, Wuxi, Jiangsu 214181, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wei Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
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Kussie HC, Hahn W, Sivaraj D, Quintero F, Knochel A, Alfsharif AM, Yasmeh JP, Fischer K, Mojadidi S, Hostler A, Granoski M, McKenna E, Henn D, Litmanovich B, Miller AA, Schurr DK, Li VW, Li WW, Gurtner GC, Chen K. Avenanthramide and β-Glucan Therapeutics Accelerate Wound Healing Via Distinct and Nonoverlapping Mechanisms. Adv Wound Care (New Rochelle) 2024; 13:155-166. [PMID: 38299969 DOI: 10.1089/wound.2023.0050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024] Open
Abstract
Objective: Given the significant economic, health care, and personal burden of acute and chronic wounds, we investigated the dose dependent wound healing mechanisms of two Avena sativa derived compounds: avenanthramide (AVN) and β-Glucan. Approach: We utilized a splinted excisional wound model that mimics human-like wound healing and performed subcutaneous AVN and β-Glucan injections in 15-week-old C57BL/6 mice. Histologic and immunohistochemical analysis was performed on the explanted scar tissue to assess changes in collagen architecture and cellular responses. Results: AVN and β-Glucan treatment provided therapeutic benefits at a 1% dose by weight in a phosphate-buffered saline vehicle, including accelerated healing time, beneficial cellular recruitment, and improved tissue architecture of healed scars. One percent AVN treatment promoted an extracellular matrix (ECM) architecture similar to unwounded skin, with shorter, more randomly aligned collagen fibers and reduced inflammatory cell presence in the healed tissue. One percent β-Glucan treatment promoted a tissue architecture characterized by long, thick bundles of collagen with increased blood vessel density. Innovation: AVN and β-Glucan have previously shown promise in promoting wound healing, although the therapeutic efficacies and mechanisms of these bioactive compounds remain incompletely understood. Furthermore, the healed ECM architecture of these wounds has not been characterized. Conclusions: AVN and β-Glucan accelerated wound closure compared to controls through distinct mechanisms. AVN-treated scars displayed a more regenerative tissue architecture with reduced inflammatory cell recruitment, while β-Glucan demonstrated increased angiogenesis with more highly aligned tissue architecture more indicative of fibrosis. A deeper understanding of the mechanisms driving healing in these two naturally derived therapeutics will be important for translation to human use.
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Affiliation(s)
- Hudson C Kussie
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | - William Hahn
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | - Dharshan Sivaraj
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | - Filiberto Quintero
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | - Amelia Knochel
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | | | - Jonathan P Yasmeh
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | - Katharina Fischer
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | - Sultana Mojadidi
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | - Andrew Hostler
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | - Maia Granoski
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | - Eamonn McKenna
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | - Dominic Henn
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | - Ben Litmanovich
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | | | | | - Vincent W Li
- The Angiogenesis Foundation, Cambridge, Massachusetts, USA
| | - William W Li
- The Angiogenesis Foundation, Cambridge, Massachusetts, USA
| | - Geoffrey C Gurtner
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
- Department of Biomedical Engineering, University of Arizona, College of Medicine, Tucson, Arizona, USA
| | - Kellen Chen
- Department of Surgery, University of Arizona, College of Medicine, Tucson, Arizona, USA
- Department of Biomedical Engineering, University of Arizona, College of Medicine, Tucson, Arizona, USA
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8
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Fierro-Castro C, Tort L, Mingatto FE, Biller JD. Assessing the effect of β-glucan diets on innate immune response of tilapia macrophages against trichlorfon exposure: an in vitro study. Fish Physiol Biochem 2024; 50:527-541. [PMID: 38099984 PMCID: PMC11021296 DOI: 10.1007/s10695-023-01283-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 11/26/2023] [Indexed: 04/17/2024]
Abstract
The widespread use of pesticides in some areas where fish species such as tilapia are farmed may cause damage to the environment and affect commercial fish and therefore, human health. Water leaching with the pesticide trichlorfon, during the fumigation season in the field, can affect water quality in fish farms and consequently affect fish health. At the same time, the use of immunomodulatory compounds such as β-glucan supplied in the diet has become widespread in fish farms as it has been shown that improves the overall immune response. The present research examines the immunomodulatory impacts observed in macrophages of Nile tilapia (Oreochromis niloticus) after being fed a diet supplemented with β-glucan for 15 days, followed by their in vitro exposure to trichlorfon, an organophosphate pesticide, at concentrations of 100 and 500 µg mL-1 for 24 h. The results showed that β-glucan diet improved the viability of cells exposed to trichlorfon and their antioxidant capacity. However, β-glucan did not counteract the effects of the pesticide as for the ability to protect against bacterial infection. From the present results, it can be concluded that β-glucan feeding exerted a protective role against oxidative damage in cells, but it was not enough to reduce the deleterious effects of trichlorfon on the microbicidal capacity of macrophages exposed to this pesticide.
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Affiliation(s)
- Camino Fierro-Castro
- Departamento de Biología Molecular, Área de Genética, Facultad de Ciencias Biológicas y Ambientales, Universidad de León, 24071, León, Spain.
| | - Lluís Tort
- Departmento de Biología Celular, Fisiología E Inmunología, Fac. Biociencas, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Fábio Erminio Mingatto
- Department of Animal Science, College of Agricultural and Technological Sciences, São Paulo State University (Unesp), Dracena, Brazil
| | - Jaqueline Dalbello Biller
- Department of Animal Science, College of Agricultural and Technological Sciences, São Paulo State University (Unesp), Dracena, Brazil
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9
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Ciji A, Akhtar MS, Tripathi PH, Dubey MK, Sharma P. Higher intake of β-glucan impairs reproduction in a female teleost, Tor putitora (Hamilton, 1822). Fish Physiol Biochem 2024; 50:589-603. [PMID: 38175337 DOI: 10.1007/s10695-023-01292-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 12/22/2023] [Indexed: 01/05/2024]
Abstract
Although the immuno-modulatory and stress-relieving properties of β-glucan is well elucidated in humans and other animal models, including fish, its role as a dietary supplement on reproduction is extremely scarce. Therefore, in this study, adult female fish were fed one of four test diets having 0 (control), 0.5, 1, and 1.5% β-D-glucan for 130 days and its effect on reproductive performance, ovarian and liver histology, sex hormones, and transcript abundance of selected reproduction-related genes was assessed. Low dietary intake of β-glucan improved fertilization and hatching rates (p<0.05). The relative fecundity and percentage of spawning females were higher (non-significant) in 0.5% β-glucan-fed groups. Surprisingly, even after 130 days, spawning did not occur in 1.5% β-glucan-fed individuals. Irrespective of β-glucan intake, all the brooders recorded similar plasma 17β-estradiol and maturation-inducing hormone (p>0.05). Higher intake of β-glucan (1.5%) upregulated aromatase genes without a parallel increase in 17β-estradiol. However, plasma vitellogenin increased with increasing β-glucan up to 1.0% then declined at 1.5% (p<0.05). The fish that received control, 0.5, and 1.5% β-glucan recorded similar vitellogenin levels in their plasma. Significantly higher plasma cortisol was evidenced in 1.5% β-glucan fed brooders (p<0.05). Histologically, higher follicular atresia and leaking of yolk material was evidenced in 1.5% β-glucan-fed group. Liver histology revealed the highest nutrient/lipid accumulation in fish that received 1.0% and 1.5% β-glucan. This study demonstrated the stimulatory effect of β-glucan intake at a lower dose (0.5%) on reproduction. However, higher intake (1.5%) could perturb normal reproductive function in a fish model and caused an increased number of atretic follicles leading to spawning/reproductive failure.
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Affiliation(s)
- Alexander Ciji
- ICAR-Directorate of Coldwater Fisheries Research, Anusandhan Bhawan, Bhimtal, Nainital, Uttarakhand, -263136, India
| | - M S Akhtar
- ICAR-Directorate of Coldwater Fisheries Research, Anusandhan Bhawan, Bhimtal, Nainital, Uttarakhand, -263136, India.
| | - Priyanka H Tripathi
- ICAR-Directorate of Coldwater Fisheries Research, Anusandhan Bhawan, Bhimtal, Nainital, Uttarakhand, -263136, India
| | - Maneesh Kumar Dubey
- ICAR-Directorate of Coldwater Fisheries Research, Anusandhan Bhawan, Bhimtal, Nainital, Uttarakhand, -263136, India
| | - Prakash Sharma
- ICAR-Directorate of Coldwater Fisheries Research, Anusandhan Bhawan, Bhimtal, Nainital, Uttarakhand, -263136, India
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10
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Kang Y, Kim D, Lee S, Kim H, Kim T, Cho JA, Lee T, Choi EY. Innate Immune Training Initiates Efferocytosis to Protect against Lung Injury. Adv Sci (Weinh) 2024; 11:e2308978. [PMID: 38279580 PMCID: PMC11005705 DOI: 10.1002/advs.202308978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Indexed: 01/28/2024]
Abstract
Innate immune training involves myelopoiesis, dynamic gene modulation, and functional reprogramming of myeloid cells in response to secondary heterologous challenges. The present study evaluates whether systemic innate immune training can protect tissues from local injury. Systemic pretreatment of mice with β-glucan, a trained immunity agonist, reduces the mortality rate of mice with bleomycin-induced lung injury and fibrosis, as well as decreasing collagen deposition in the lungs. β-Glucan pretreatment induces neutrophil accumulation in the lungs and enhances efferocytosis. Training of mice with β-glucan results in histone modification in both alveolar macrophages (AMs) and neighboring lung epithelial cells. Training also increases the production of RvD1 and soluble mediators by AMs and efferocytes. Efferocytosis increases trained immunity in AMs by stimulating RvD1 release, thus inducing SIRT1 expression in neighboring lung epithelial cells. Elevated epithelial SIRT1 expression is associated with decreased epithelial cell apoptosis after lung injury, attenuating tissue damage. Further, neutrophil depletion dampens the effects of β-glucan on macrophage accumulation, epigenetic modification in lung macrophages, epithelial SIRT1 expression, and injury-mediated fibrosis in the lung. These findings provide mechanistic insights into innate immune training and clues to the potential ability of centrally trained immunity to protect peripheral organs against injury-mediated disorders.
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Affiliation(s)
- Yoon‐Young Kang
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
- Department of MicrobiologyUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
| | - Dong‐Young Kim
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
- Present address:
Institute for Clinical Chemistry and Laboratory MedicineFaculty of MedicineTechnische Universität Dresden01307DresdenGermany
| | - Sang‐Yong Lee
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
- Department of MicrobiologyUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
| | - Hee‐Joong Kim
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
- Department of MicrobiologyUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
| | - Taehawn Kim
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
| | - Jeong A. Cho
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
| | - Taewon Lee
- Division of Applied Mathematical SciencesCollege of Science and TechnologyKorea UniversitySejong30019Republic of Korea
| | - Eun Young Choi
- Department of Biomedical SciencesUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
- Department of MicrobiologyUniversity of Ulsan College of MedicineASAN Medical CenterSeoul05505Republic of Korea
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11
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Paesani C, Lammers TCGL, Sciarini LS, Moiraghi M, Pérez GT, Fabi JP. Effect of chemical, thermal, and enzymatic processing of wheat bran on the solubilization, technological and biological properties of non-starch polysaccharides. Carbohydr Polym 2024; 328:121747. [PMID: 38220355 DOI: 10.1016/j.carbpol.2023.121747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 01/16/2024]
Abstract
Wheat bran is a low-cost by-product with significant nutritional value, but it is primarily utilized in animal feed applications. This study sought to investigate chemical methodologies for modifying the wheat bran's structure, enhancing non-starch polysaccharides solubility in water, and assessing alterations in functional and biological attributes. Chemical modifications were conducted under aqueous, alkaline, acid, and oxidizing conditions. Parameters such as yield, monosaccharides, arabinoxylans, β-glucan and phenolic content, molecular weight, functional properties, and prebiotic in vitro capacity were examined. The samples exhibited higher yields than the control, particularly in alkaline and acidic extractions. Notably, all soluble polysaccharide fractions (SPF) displayed a reduced molecular weight (<25KDa). β-glucan contents were raised in alkaline and acid extractions compared to the control, despite only in alkaline extraction were observed increase in arabinoxylans, confirmed by enzymatic-driven linkage analyses. Phenolic compounds and their antioxidant activities were low across all SPF. The samples showed heightened solubility, minimal foaming, and reduced water absorption properties. An alkaline extraction demonstrated a potential high prebiotic effect. Most samples showed positive relative growth and prebiotic activity for Lactobacillus and Bifidobacterium. This study suggests that an alkaline extraction of wheat by-product could enhance its value by increasing β-glucan content, arabinoxylans release, and prebiotic potential.
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Affiliation(s)
- Candela Paesani
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil; ICYTA (Instituto de Ciencia y Tecnología de los alimentos Córdoba), UNC-CONICET, Av. Filloy s/n, Cuidad Universitaria, Córdoba, Argentina.
| | - Tamy C G L Lammers
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil
| | - Lorena S Sciarini
- ICYTA (Instituto de Ciencia y Tecnología de los alimentos Córdoba), UNC-CONICET, Av. Filloy s/n, Cuidad Universitaria, Córdoba, Argentina.
| | - Malena Moiraghi
- ICYTA (Instituto de Ciencia y Tecnología de los alimentos Córdoba), UNC-CONICET, Av. Filloy s/n, Cuidad Universitaria, Córdoba, Argentina.
| | - Gabriela T Pérez
- ICYTA (Instituto de Ciencia y Tecnología de los alimentos Córdoba), UNC-CONICET, Av. Filloy s/n, Cuidad Universitaria, Córdoba, Argentina.
| | - João Paulo Fabi
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil; Food Research Center (FoRC), CEPID-FAPESP, Research Innovation and Dissemination Centers, São Paulo Research Foundation, Rua do Lago, 250, São Paulo, SP, Brazil; Food and Nutrition Research Center (NAPAN), University of São Paulo, São Paulo, SP, Brazil.
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12
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Bano S, Khan N, Fatima M, Khalique A, Arslan M, Nazir S, Asghar M, Khizar A, Davies SJ, Wan AHL. Enhancing farmed striped catfish (Pangasianodon hypophthalmus) robustness through dietary β-glucan. PLoS One 2024; 19:e0298414. [PMID: 38483918 PMCID: PMC10939287 DOI: 10.1371/journal.pone.0298414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 01/24/2024] [Indexed: 03/17/2024] Open
Abstract
β-glucan is a well-documented feed additive for its potent immunostimulatory properties in many farmed fish species. This study examined how it can also be a promising growth promoter, modulate antioxidant enzyme activities, and act as an anti-stress agent in striped catfish (Pangasianodon hypophthalmus). A 12-week feeding experiment was untaken to determine the effects of dietary β-glucan supplementation at graded levels (0, 0.5, 1.0, and 1.5 g kg-1). Measured indicators suggest that a dietary inclusion level of 1.5 g kg-1 β-glucan gave the highest positive responses: weight gain (120.10 g fish-1), survival (98.30%), and lower FCR (1.70) (P<0.05). Whole body proximate analysis had only revealed that crude protein was significantly affected by the dietary inclusion of β-glucan (P<0.05), with the highest protein content (19.70%) being in fish that were fed with 1.5 g kg-1 β-glucan. Although other inclusion levels (i.e., 0.5 and 1 g kg-1) of β-glucan did not enhance body protein content (P>0.05). The assessment of fatty acid composition in muscle, liver, and adipose tissues showed modifications with the inclusion of β-glucan. Antioxidative-related enzyme activities (inc. catalase, glutathione peroxidase, and superoxide dismutase) that were measured in the liver had higher levels when fed with β-glucan inclusion diets (P<0.05). Following the feed trial, fish were subjected to crowding stress treatment. It was subsequently found that catfish fed with β-glucan-based diet groups had lower levels of blood stress-related indicators compared to the control group with no dietary β-glucan. The use of 1.5 g kg-1 of dietary β-glucan resulted in the lowest measured levels of cortisol (43.13 ng mL-1) and glucose (50.16 mg dL-1). This study has demonstrated that the dietary inclusion of β-glucan can have functional benefits beyond the immunological enhancements in striped catfish. Furthermore, its use can increase production levels and mitigate the stress associated with intensive farming practices.
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Affiliation(s)
- Sheeza Bano
- Department of Fisheries & Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Noor Khan
- Department of Fisheries & Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Mahroze Fatima
- Department of Fisheries & Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Anjum Khalique
- Department of Animal Nutrition, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Murat Arslan
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, Erzurum, Turkey
| | - Sadia Nazir
- Department of Fisheries & Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Muhammad Asghar
- Department of Fisheries & Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Ayesha Khizar
- Department of Fisheries & Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Simon John Davies
- Aquaculture and Nutrition Research Unit (ANRU), Carna Research Station, Ryan Institute and School of Natural Sciences, University of Galway, Carna, Connemara, Co. Galway, Ireland
| | - Alex H. L. Wan
- Aquaculture and Nutrition Research Unit (ANRU), Carna Research Station, Ryan Institute and School of Natural Sciences, University of Galway, Carna, Connemara, Co. Galway, Ireland
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13
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Boulifa A, Raftery MJ, Franzén AS, Radecke C, Stintzing S, Blohmer JU, Pecher G. Role of beta-(1→3)(1→6)-D-glucan derived from yeast on natural killer (NK) cells and breast cancer cell lines in 2D and 3D cultures. BMC Cancer 2024; 24:339. [PMID: 38486205 PMCID: PMC10938759 DOI: 10.1186/s12885-024-11979-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 02/07/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND Beta-(1,3)(1,6)-D-glucan is a complex polysaccharide, which is found in the cell wall of various fungi, yeasts, bacteria, algae, barley, and oats and has immunomodulatory, anticancer and antiviral effects. In the present study, we investigated the effect of beta-(1,3)(1,6)-D-glucan derived from yeast on the proliferation of primary NK cells and breast cancer cell lines in 2D and 3D models, and on the cytotoxicity of primary NK cells against breast cancer cell lines in 2D and 3D models. METHODS In this study, we investigated the effects of different concentrations of yeast-derived beta-(1→3)(1→6)-D-glucan on the proliferation and cytotoxicity of human NK cells and breast cancer cell lines in 2D and 3D models using the XTT cell proliferation assay and the CellTiter-Glo® 2.0 assay to determine the cytotoxicity of human NK cells on breast cancer cell lines in 2D and 3D models. RESULTS We found that the co-incubation of NK cells with beta-glucan in the absence of IL2 at 48 h significantly increased the proliferation of NK cells, whereas the co-incubation of NK cells with beta-glucan in the presence of IL2 (70 U/ml) increased the proliferation of NK cells but not significantly. Moreover, beta-glucan significantly inhibited the proliferation of breast cancer cell lines in 2D model and induced a weak, non-significant growth inhibitory effect on breast cancer multicellular tumor spheroids (3D). In addition, the cytotoxicity of NK cells against breast cancer cell lines was examined in 2D and 3D models, and beta-glucan significantly increased the cytotoxicity of NK cells against MCF-7 (in 2D). CONCLUSIONS Yeast derived beta-(1,3)(1,6)-D-glucan could contribute to the treatment of cancer by enhancing NK cell immune response as well as contributing to inhibition of breast cancer cell growth.
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Affiliation(s)
- Abdelhadi Boulifa
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, Berlin, 10117, Germany
- Competence Center of Immuno-Oncology and Translational Cell Therapy (KITZ), Department of Hematology, Oncology and Tumor Immunology, CCM, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, Berlin, 10117, Germany
| | - Martin J Raftery
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, Berlin, 10117, Germany
- Competence Center of Immuno-Oncology and Translational Cell Therapy (KITZ), Department of Hematology, Oncology and Tumor Immunology, CCM, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, Berlin, 10117, Germany
| | - Alexander Sebastian Franzén
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, Berlin, 10117, Germany
- Competence Center of Immuno-Oncology and Translational Cell Therapy (KITZ), Department of Hematology, Oncology and Tumor Immunology, CCM, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, Berlin, 10117, Germany
| | - Clarissa Radecke
- Competence Center of Immuno-Oncology and Translational Cell Therapy (KITZ), Department of Hematology, Oncology and Tumor Immunology, CCM, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, Berlin, 10117, Germany
| | - Sebastian Stintzing
- Competence Center of Immuno-Oncology and Translational Cell Therapy (KITZ), Department of Hematology, Oncology and Tumor Immunology, CCM, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, Berlin, 10117, Germany
| | - Jens-Uwe Blohmer
- Department of Gynecology with Breast Center Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, Berlin, 10117, Germany
| | - Gabriele Pecher
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, Berlin, 10117, Germany.
- Competence Center of Immuno-Oncology and Translational Cell Therapy (KITZ), Department of Hematology, Oncology and Tumor Immunology, CCM, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, Berlin, 10117, Germany.
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14
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Wang Q, Wang Z, Xu C, Wu D, Wang T, Wang C, Shao J. Physical impediment to sodium houttuyfonate conversely reinforces β-glucan exposure stimulated innate immune response to Candida albicans. Med Mycol 2024; 62:myae014. [PMID: 38389246 DOI: 10.1093/mmy/myae014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/12/2024] [Accepted: 02/20/2024] [Indexed: 02/24/2024] Open
Abstract
Candida albicans is a dimorphic opportunistic pathogen in immunocompromised individuals. We have previously demonstrated that sodium houttuyfonate (SH), a derivative of medicinal herb Houttuynia cordata Thunb, was effective for antifungal purposes. However, the physical impediment of SH by C. albicans β-glucan may weaken the antifungal activity of SH. In this study, the interactions of SH with cell wall (CW), extracellular matrix (EM), CW β-glucan, and a commercial β-glucan zymosan A (ZY) were inspected by XTT assay and total plate count in a standard reference C. albicans SC5314 as well as two clinical fluconazole-resistant strains Z4935 and Z5172. After treatment with SH, the content and exposure of CW β-glucan, chitin, and mannan were detected, the fungal clearance by phagocytosis of RAW264.7 and THP-1 was examined, and the gene expressions and levels of cytokines TNF-ɑ and IL-10 were also monitored. The results showed that SH could be physically impeded by β-glucan in CW, EM, and ZY. This impediment subsequently triggered the exposure of CW β-glucan and chitin with mannan masked in a time-dependent manner. SH-induced β-glucan exposure could significantly enhance the phagocytosis and inhibit the growth of C. albicans. Meanwhile, the SH-pretreated fungal cells could greatly stimulate the cytokine gene expressions and levels of TNF-ɑ and IL-10 in the macrophages. In sum, the strategy that the instant physical impediment of C. albicans CW to SH, which can induce the exposure of CW β-glucan may be universal for C. albicans in response to physical deterrent by antifungal drugs.
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Affiliation(s)
- Qirui Wang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Zixu Wang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Chen Xu
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Daqiang Wu
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
- Institute of Integrated Traditional Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Tianming Wang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Changzhong Wang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
- Institute of Integrated Traditional Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Jing Shao
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
- Institute of Integrated Traditional Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui, P. R. China
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15
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Lima ECSDE, Souza FPDE, Furlan-Murari PJ, Pandolfi VCF, Leite NG, Mainardi RM, Chideroli RT, Pereira UP, Araújo EJA, Pupim ACE, Koch JFA, Lopera-Barrero NM. Effects of dietary β-glucans on the productive performance, blood parameters, and intestinal microbiota of angelfish (Pterophyllum scalare) juveniles. AN ACAD BRAS CIENC 2024; 96:e20231006. [PMID: 38451599 DOI: 10.1590/0001-3765202420231006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/29/2023] [Indexed: 03/08/2024] Open
Abstract
Among the potential feed additives, β-glucans are known to positively affect the growth performance, blood parameters, and intestinal microbiota of fish, even the ornamental species. Therefore, the present study evaluated the effects of the dietary supplementation of different Saccharomyces cerevisiae β-glucans concentrations (0, 0.05, 0.1, and 0.2%) in juvenile angelfish (Pterophyllum scalare) over a 42-day period. Regarding growth performance, no effects were observed on most parameters. However, 0.2% β-glucans supplementation produced higher condition factor values, indicating a better nutritional status. Furthermore, β-glucans supplementation did not affect blood parameters. Regarding intestinal microbiota, β-glucans supplementation increased the abundance of the potentially beneficial bacterial genus Phascolarctobacterium. The high abundance of bacteria from the phylum Bacteroidetes, which can degrade β-glucans, may be attributed to the increased abundance of Phascolarctobacterium spp. In addition, 0.2% β-glucans supplementation produced more operational taxonomic units and higher Sobs (observed species richness), indicating effects on the overall bacterial community structure. These results demonstrate the potential application of β-glucans as a dietary supplement to improve the performance and modulate the intestinal microbiota of angelfish.
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Affiliation(s)
- Ed C S DE Lima
- Programa de Pós-Graduação em Ciência Animal, Universidade Estadual de Londrina (UEL), Centro de Ciências Agrárias (CCA), Rodovia Celso Garcia Cid, PR 445 Km 380, 86057-970 Londrina, PR, Brazil
| | - Felipe P DE Souza
- Programa de Pós-Graduação em Ciência Animal, Universidade Estadual de Londrina (UEL), Centro de Ciências Agrárias (CCA), Rodovia Celso Garcia Cid, PR 445 Km 380, 86057-970 Londrina, PR, Brazil
| | - Pâmela Juliana Furlan-Murari
- Programa de Pós-Graduação em Ciência Animal, Universidade Estadual de Londrina (UEL), Centro de Ciências Agrárias (CCA), Rodovia Celso Garcia Cid, PR 445 Km 380, 86057-970 Londrina, PR, Brazil
| | - Victor César F Pandolfi
- Programa de Pós-Graduação em Ciência Animal, Universidade Estadual de Londrina (UEL), Centro de Ciências Agrárias (CCA), Rodovia Celso Garcia Cid, PR 445 Km 380, 86057-970 Londrina, PR, Brazil
| | - Natália G Leite
- Programa de Pós-Graduação em Ciência Animal, Universidade Estadual de Londrina (UEL), Centro de Ciências Agrárias (CCA), Rodovia Celso Garcia Cid, PR 445 Km 380, 86057-970 Londrina, PR, Brazil
| | - Raffaella M Mainardi
- Programa de Pós-Graduação em Ciência Animal, Universidade Estadual de Londrina (UEL), Centro de Ciências Agrárias (CCA), Rodovia Celso Garcia Cid, PR 445 Km 380, 86057-970 Londrina, PR, Brazil
| | - Roberta T Chideroli
- Programa de Pós-Graduação em Ciência Animal, Universidade Estadual de Londrina (UEL), Centro de Ciências Agrárias (CCA), Rodovia Celso Garcia Cid, PR 445 Km 380, 86057-970 Londrina, PR, Brazil
| | - Ulisses P Pereira
- Universidade Estadual de Londrina (UEL), Departamento de Medicina Veterinária Preventiva, Centro de Ciências Agrárias (CCA), Rodovia Celso Garcia Cid, PR 445 Km 380, 86057-970 Londrina, PR, Brazil
| | - Eduardo José A Araújo
- Universidade Estadual de Londrina (UEL), Departamento de Histologia, Centro de Ciência Biológicas (CCB), Rodovia Celso Garcia Cid, PR 445 Km 380, 86057-970 Londrina, PR, Brazil
| | - Andréia Carla E Pupim
- Universidade Estadual de Londrina (UEL), Departamento de Histologia, Centro de Ciência Biológicas (CCB), Rodovia Celso Garcia Cid, PR 445 Km 380, 86057-970 Londrina, PR, Brazil
| | - João Fernando A Koch
- Biorigin Brasil, Rua Quinze de Novembro, 865, Centro, 18680-900 Lençóis Paulista, SP, Brazil
| | - Nelson Mauricio Lopera-Barrero
- Universidade Estadual de Londrina (UEL), Departamento de Zootecnia, Centro de Ciências Agrárias (CCA), Rodovia Celso Garcia Cid, PR 445 Km 380, 86057-970 Londrina, PR, Brazil
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Majka Z, Zapala B, Krawczyk A, Czamara K, Mazurkiewicz J, Stanek E, Czyzynska-Cichon I, Kepczynski M, Salamon D, Gosiewski T, Kaczor A. Direct oral and fiber-derived butyrate supplementation as an anti-obesity treatment via different targets. Clin Nutr 2024; 43:869-880. [PMID: 38367596 DOI: 10.1016/j.clnu.2024.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 01/15/2024] [Accepted: 02/09/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND & AIMS Butyric (one of the short-chain fatty acids), a major byproduct of the fermentation of non-digestible carbohydrates (e.g. fiber), is supposed to have anti-obesity and anti-inflammatory properties. However, butyrate's potential and mechanism in preventing obesity and the efficient form of administration remain to be clarified. METHODS Hence, we studied the effect of oral supplementation with 5% (w/w) sodium butyrate and 4% (w/w) β-glucan (fiber) on young male mice (C57BL/6J) with high-fat diet-induced obesity (HFD: 60 kcal% of fat + 1% of cholesterol). Six weeks old mice were fed diets based on HFD or control (AIN-93G) diet with/without supplements for 4 weeks. The unique, interdisciplinary approach combining several Raman-based techniques (including Raman microscopy and fiber optic Raman spectroscopy) and next-generation sequencing was used to ex vivo analyze various depots of the adipose tissue (white, brown, perivascular) and gut microbiome, respectively. RESULTS The findings demonstrate that sodium butyrate more effectively prevent the pathological increase in body weight caused by elevated saturated fatty acids influx linked to a HFD in comparison to β-glucan, thereby entirely inhibiting diet-induced obesity. Moreover, butyrate significantly affects the white adipose tissue (WAT) reducing the epididymal WAT mass in comparison to HFD without supplements, and decreasing lipid saturation in the epididymal WAT and perivascular adipose tissue of the thoracic aorta. Contrarily, β-glucan significantly changes the composition and diversity of the gut microbiome, reversing the HFD effect, but shows no effect on the epididymal WAT mass and therefore the weight gain inhibition is not as effective as with sodium butyrate. CONCLUSIONS Here, oral supplementation with sodium butyrate and β-glucan (fiber) has been proven to have an anti-obesity effect through two different targets. Administration-dependent effects that butyrate imposes on the adipose tissue (oral administration) and microbiome (fiber-derived) make it a promising candidate for the personalized treatment of obesity.
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Affiliation(s)
- Zuzanna Majka
- Jagiellonian Centre of Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., Krakow 30-348, Poland; Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., Krakow 30-387, Poland
| | - Barbara Zapala
- Department of Clinical Biochemistry, Jagiellonian University Medical College, 8 Skawinska Str., Krakow 31-066, Poland
| | - Agnieszka Krawczyk
- Department of Molecular Medical Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 18 Czysta Str., Krakow 31-121, Poland
| | - Krzysztof Czamara
- Jagiellonian Centre of Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., Krakow 30-348, Poland
| | - Joanna Mazurkiewicz
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., Krakow 30-387, Poland
| | - Ewa Stanek
- Jagiellonian Centre of Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., Krakow 30-348, Poland
| | - Izabela Czyzynska-Cichon
- Jagiellonian Centre of Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., Krakow 30-348, Poland
| | - Mariusz Kepczynski
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., Krakow 30-387, Poland
| | - Dominika Salamon
- Department of Molecular Medical Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 18 Czysta Str., Krakow 31-121, Poland
| | - Tomasz Gosiewski
- Department of Molecular Medical Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 18 Czysta Str., Krakow 31-121, Poland.
| | - Agnieszka Kaczor
- Jagiellonian Centre of Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., Krakow 30-348, Poland; Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., Krakow 30-387, Poland.
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17
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Xu C, Wang F, Guan S, Wang L. β-Glucans obtained from fungus for wound healing: A review. Carbohydr Polym 2024; 327:121662. [PMID: 38171680 DOI: 10.1016/j.carbpol.2023.121662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/22/2023] [Accepted: 12/01/2023] [Indexed: 01/05/2024]
Abstract
The cell surface of fungus contains a large number of β-glucans, which exhibit various biological activities such as immunomodulatory, anti-inflammatory, and antioxidation. Fungal β-glucans with highly branched structure show great potential as wound healing reagents, because they can stimulate the expression of many immune- and inflammatory-related factors beneficial to wound healing. Recently, the wound healing ability of many fungal β-glucans have been investigated in animals and clinical trials. Studies have proved that fungal β-glucans can promote fibroblasts proliferation, collagen deposition, angiogenesis, and macrophage infiltration during the wound healing process. However, the development of fungal β-glucans as wound healing reagents is not systematically reviewed till now. This review discusses the wound healing studies of β-glucans obtained from different fungal species. The structure characteristics, extraction methods, and biological functions of fungal β-glucans with wound healing ability are summarized. Researches about fungal β-glucan-containing biomaterials and structurally modified β-glucans for wound healing are also involved.
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Affiliation(s)
- Chunhua Xu
- Biology Institute, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250103, Shandong Province, China
| | - Fengxia Wang
- Biology Institute, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250103, Shandong Province, China
| | - Shibing Guan
- Department of Hand and Foot Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong Province, China.
| | - Lizhen Wang
- Biology Institute, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250103, Shandong Province, China.
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18
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Zhong L, Hu Q, Zhan Q, Zhao M, Zhao L. Oat protein isolate- Pleurotus ostreatus β-glucan conjugate nanoparticles bound to β-carotene effectively alleviate immunosuppression by regulating gut microbiota. Food Funct 2024; 15:1867-1883. [PMID: 38236028 DOI: 10.1039/d3fo05158g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Individuals with immune disorders cannot establish an adequate defense to pathogens, leading to gut microbiota dysbiosis. β-Carotene can regulate immune response, but its bioavailability in vivo is very low. Herein, we developed a glycosylated oat protein-based nanoparticle to improve the application of β-carotene for mitigating cyclophosphamide-induced immunosuppression and gut microbiota imbalance in mice. The results showed that the nanoparticles facilitated a conversion of β-carotene to retinol or retinyl palmitate into the systemic circulation, leading to an increased bioavailability of β-carotene. The encapsulated β-carotene bolstered humoral immunity by elevating immunoglobulin levels, augmenting splenic T lymphocyte subpopulations, and increasing splenic cytokine concentrations in immunosuppressed mice. This effect was accompanied by the alleviation of pathological features observed in the spleen. In addition, the encapsulated β-carotene restored the abnormal gut microbiota associated with immunosuppression, including Erysipelotrichaceae, Akkermansia, Bifidobacterium and Roseburia. This study suggested that nanoparticles loaded with β-carotene have great potential for therapeutic intervention in human immune disorders by specifically targeting the gut microbiota.
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Affiliation(s)
- Lei Zhong
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, P.R. China
| | - Qiuhui Hu
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, 210023, P.R. China.
| | - Qiping Zhan
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, P.R. China
| | - Mingwen Zhao
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, P.R. China
| | - Liyan Zhao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, P.R. China
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19
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Vuscan P, Kischkel B, Hatzioannou A, Markaki E, Sarlea A, Tintoré M, Cuñé J, Verginis P, de Lecea C, Chavakis T, Joosten LA, Netea MG. Potent induction of trained immunity by Saccharomyces cerevisiae β-glucans. Front Immunol 2024; 15:1323333. [PMID: 38415247 PMCID: PMC10896952 DOI: 10.3389/fimmu.2024.1323333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 01/30/2024] [Indexed: 02/29/2024] Open
Abstract
Candida albicans cell wall component β-glucan has been extensively studied for its ability to induce epigenetic and functional reprogramming of innate immune cells, a process termed trained immunity. We show that a high-complexity blend of two individual β-glucans from Saccharomyces cerevisiae possesses strong bioactivity, resulting in an enhanced trained innate immune response by human primary monocytes. The training required the Dectin-1/CR3, TLR4, and MMR receptors, as well as the Raf-1, Syk, and PI3K downstream signaling molecules. By activating multiple receptors and downstream signaling pathways, the components of this β-glucan preparation are able to act synergistically, causing a robust secondary response upon an unrelated challenge. In in-vivo murine models of melanoma and bladder cell carcinoma, pre-treatment of mice with the β-glucan preparation led to a significant reduction in tumor growth. These insights may aid in the development of future therapies based on β-glucan structures that induce an effective trained immunity response.
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Affiliation(s)
- Patricia Vuscan
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Brenda Kischkel
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Aikaterini Hatzioannou
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, TU Dresden, Dresden, Germany
| | - Efrosyni Markaki
- Laboratory of Immune Regulation and Tolerance, Medical School, University of Crete, Heraklion, Greece
| | - Andrei Sarlea
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Maria Tintoré
- R&D Department, AB Biotek Human Nutrition and Health, Barcelona, Spain
| | - Jordi Cuñé
- R&D Department, AB Biotek Human Nutrition and Health, Barcelona, Spain
| | - Panayotis Verginis
- Laboratory of Immune Regulation and Tolerance, Medical School, University of Crete, Heraklion, Greece
| | - Carlos de Lecea
- R&D Department, AB Biotek Human Nutrition and Health, Barcelona, Spain
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, TU Dresden, Dresden, Germany
| | - Leo A.B. Joosten
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
- Department of Medical Genetics, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Mihai G. Netea
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
- Department for Immunology and Metabolism, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
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20
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Mirseyed PS, Kheirabadi S, Anbarteh R, H Ghaffari M. Assessment of mycotoxin sequestration efficacy in Saccharomyces cerevisiae by-products cultured in wheat bran and whey protein medium. Sci Rep 2024; 14:3101. [PMID: 38326556 PMCID: PMC10850169 DOI: 10.1038/s41598-024-53633-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/03/2024] [Indexed: 02/09/2024] Open
Abstract
Mycotoxins are metabolic products of fungi found in feed for farm animals and pose a major threat to food safety due to their adverse health effects. The development of strategies to reduce their bioavailability is crucial. In this context, the cell wall components of Saccharomyces cerevisiae (YCW), especially β-D-glucans and Mannan-oligosaccharide, have been recognized as potent mycotoxin binders. The objective of this research was to develop a novel culture medium to increase the biomass yield of S. cerevisiae and optimize cell disruption by stepwise physical lysis and hydrolytic preconditioning. This process resulted in a yield of approximately 56% reducing saccharides and 28.54% protein. Subsequently, the β-glucan was extracted after cell wall sequestration. The isolated YCW and extracted β-glucan were characterized both individually and synergistically to evaluate their antibacterial properties and analyze their Fourier transform infrared (FTIR) spectra. In vitro evaluation of antibacterial activity revealed that a concentration greater than 250 μg/mL of YCW-β-glucan blend significantly inhibited the growth of Gram-negative bacteria. In addition, this blend showed good adsorption of various mycotoxins, including Aflatoxin B1, Ochratoxin A, and Zearalenone, the latter of which exhibited a remarkable adsorption rate of 80.85%. This study highlights the promising potential of a combination of YCW and β-glucan as a robust strategy to address the pervasive problem of mycotoxin contamination in feed.
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Affiliation(s)
| | - Shahpour Kheirabadi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Alborz, Iran
| | - Rojin Anbarteh
- Antimicrobial Resistance Research Center, Institute of Immunology and Infectious Disease, Iran University of Medical Sciences, Tehran, Iran
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21
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Zhao C, Shi R, Lu X, Yang R, Chen Z, Chen B, Hu W, Ren J, Peng J, Zhu T, Zhu H, Huang C. Obligatory role of microglia-mobilized hippocampal CREB-BDNF signaling in the prophylactic effect of β-glucan on chronic stress-induced depression-like behaviors in mice. Eur J Pharmacol 2024; 964:176288. [PMID: 38142848 DOI: 10.1016/j.ejphar.2023.176288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/01/2023] [Accepted: 12/14/2023] [Indexed: 12/26/2023]
Abstract
Our previous studies have reported that pre-stimulation of microglia before stress stimulation is a possible strategy to prevent depression-like phenotypes; however, the molecular mechanisms underlying this effect are still unclear. Here, we used β-glucan, a polysaccharide from Saccharomyces cerevisiae with immunomodulatory activities that cannot elicit pro-inflammatory responses in microglia, to address this issue. Our results showed that a single injection of β-glucan one day before stress exposure dose-dependently prevented the depression-like behaviors triggered by chronic unpredictable stress (CUS), which peaked at 20 mg/kg and prevented the impairment of hippocampal brain-derived neurotrophic factor (BDNF) signaling, a pathological process critical for the progression of depression-like phenotypes. Inhibition of BDNF signaling by infusion of an anti-BDNF antibody into the hippocampus, knock-in of the mutant BDNF Val68Met allele, or blockade of the BDNF receptor in the hippocampus abolished the preventive effect of β-glucan on CUS-induced depression-like behaviors. Further analysis showed that cAMP-response element binding protein (CREB)-mediated increase of BDNF expression in the hippocampus was essential for the prevention of depression-like phenotypes by β-glucan. Pretreatment with minocycline or PLX3397 before β-glucan injection to suppress microglia abolished the preventive effect of β-glucan on impaired CREB-BDNF signaling in the hippocampus and depression-like behaviors in CUS mice. These results suggest that an increase in hippocampal BDNF following CREB activation triggered by β-glucan-induced microglia stimulation and subsequent TrkB signaling mediates the preventive effect of β-glucan on depression. β-Glucan may be a more suitable immunostimulant for the prevention of depression due to its inability to promote pro-inflammatory responses in microglia.
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Affiliation(s)
- Cheng Zhao
- Department of Pharmacy, Affiliated Hospital of Nantong University, #20 Xisi Road, Nantong 226001, Jiangsu, China.
| | - Ruiting Shi
- Faculty of Humanities and Social Sciences, City University of Macau, Av. Parde Tomas Pereira, Macau, Taipa, 999078, China
| | - Xu Lu
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Rongrong Yang
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, China
| | - Zhuo Chen
- Invasive Technology Department, The Second Affiliated Hospital of Nantong University, First People's Hospital of Nantong City, #666 Shengli Road, Nantong 226006, China
| | - Bingran Chen
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Wenfeng Hu
- Department of Pharmacy, Affiliated Maternal and Child Health Hospital of Nantong University, #399 Shijidadao, Nantong 226007, China
| | - Jie Ren
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Jie Peng
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Tao Zhu
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Haojie Zhu
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Chao Huang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China.
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22
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Liu H, Nie C, Hu X, Li J. Highland barley β-glucan supplementation attenuated hepatic lipid accumulation in Western diet-induced non-alcoholic fatty liver disease mice by modulating gut microbiota. Food Funct 2024; 15:1250-1264. [PMID: 38194248 DOI: 10.1039/d3fo03386d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Non-alcoholic fatty liver disease (NAFLD) has become one of the most common chronic liver diseases worldwide. NAFLD is caused by numerous factors, including the genetic susceptibility, oxidative stress, unhealthy diet, and gut microbiota dysbiosis. Among these, gut microbiota is a key factor and plays an important role in the development of NAFLD. Therefore, modulating the composition and structure of gut microbiota might provide a new intervention strategy for NAFLD. Highland barley β-glucan (HBG) is a polysaccharide that can interact with gut microbiota after entering the lower gastrointestinal tract and subsequently improves NAFLD. Therefore, a Western diet was used to induce NAFLD in mouse models and the intervention effects and underlying molecular mechanisms of HBG on NAFLD mice based on gut microbiota were explored. The results indicated that HBG could regulate the composition of gut microbiota in NAFLD mice. In particular, HBG increased the abundance of short-chain fatty acids (SCFA)-producing bacteria (Prevotella-9, Bacteroides, and Roseburia) as well as SCFA contents. The increase in SCFA contents might activate the adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) signaling pathway, thereby improving the liver lipid metabolism disorder and reducing liver lipid deposition.
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Affiliation(s)
- Huicui Liu
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province 810016, People's Republic of China
| | - Chenxi Nie
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi Province 712100, People's Republic of China.
| | - Xinzhong Hu
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi Province 710062, People's Republic of China
| | - Juxiu Li
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi Province 712100, People's Republic of China.
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23
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He C, Liu Y, Schülke S, Nishio S, Guo Y, Rainer H, Maren K, Cheng TY, Nochi T, Vieths S, Scheurer S, Matsuda T, Toda M. β-1,3-glucan, but not β-1,3/1,6-glucan, exacerbates experimental food allergy, while both increase IgA induction. Allergy 2024; 79:503-506. [PMID: 37565258 DOI: 10.1111/all.15841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 07/11/2023] [Accepted: 07/26/2023] [Indexed: 08/12/2023]
Affiliation(s)
- Chaoqi He
- Laboratory of Food and Biomolecular Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Yunhui Liu
- Laboratory of Food and Biomolecular Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Stefan Schülke
- Molecular Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - Shunsuke Nishio
- Faculty of Food and Agricultural Sciences, Institute of Fermentation Sciences (IFeS), Fukushima University, Fukushima, Japan
| | - Yingnan Guo
- Laboratory of Food and Biomolecular Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Hannah Rainer
- Molecular Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - Krause Maren
- Molecular Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - Ting-Yu Cheng
- Laboratory of Food and Biomolecular Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Tomonori Nochi
- Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Stefan Vieths
- Molecular Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | | | - Tsukasa Matsuda
- Faculty of Food and Agricultural Sciences, Institute of Fermentation Sciences (IFeS), Fukushima University, Fukushima, Japan
| | - Masako Toda
- Laboratory of Food and Biomolecular Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
- Faculty of Food and Agricultural Sciences, Institute of Fermentation Sciences (IFeS), Fukushima University, Fukushima, Japan
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24
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Zhao C, Chen Z, Lu X, Hu W, Yang R, Lu Q, Chen B, Huang C. Microglia-Dependent Reversal of Depression-Like Behaviors in Chronically Stressed Mice by Administration of a Specific Immuno-stimulant β-Glucan. Neurochem Res 2024; 49:519-531. [PMID: 37962706 DOI: 10.1007/s11064-023-04056-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/19/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023]
Abstract
In recent years, the decline of microglia in the hippocampus has been shown to play a role in the development of depression, and its reversal shows marked antidepressant-like effects. β-glucan is a polysaccharide from Saccharomyces cerevisiae and has numerous beneficial effects on the nervous system, including improving axon regeneration and cognition. Considering its immuno-stimulatory activities in cultured microglia and brain tissues, we hypothesize that β-glucan may be a potential candidate to correct the functional deficiency of microglia and thereby alleviate depression-like behaviors in chronically stressed animals. An expected, our results showed that a single injection of β-glucan 5 h before behavioral tests at a dose of 10 or 20 mg/kg, but not at a dose of 5 mg/kg, reversed the depression-like behavior induced by chronic stress in mice in the tail suspension test, forced swimming test, and sucrose preference test. The effect of β-glucan (20 mg/kg) also showed time-dependent properties that were statistically significant 5 and 8, but not 3, hours after drug injection and persisted for at least 7 days. Fourteen days after β-glucan injection, no antidepressant-like effect was observed anymore. However, this effect was overcome by a second β-glucan injection (20 mg/kg) 14 days after the first β-glucan injection. Stimulation of microglia appeared to mediate the antidepressant-like effect of β-glucan, because both inhibition of microglia and their depletion prevented the antidepressant-like effect of β-glucan. Based on these effects of β-glucan, β-glucan administration could be developed as a new strategy for the treatment of depression.
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Affiliation(s)
- Cheng Zhao
- Department of Pharmacy, Affiliated Hospital of Nantong University, #20 Xisi Road, Nantong, 226001, Jiangsu, China.
| | - Zhuo Chen
- Invasive Technology Department, First People's Hospital of Nantong City, the Second Affiliated Hospital of Nantong University, #666 Shengli Road, Nantong, 226006, China
| | - Xu Lu
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong, 226001, Jiangsu Province, China
| | - Wenfeng Hu
- Department of Pharmacy, Affiliated Maternal and Child Health Hospital of Nantong University, #399 Shijidadao, Nantong, 226007, China
| | - Rongrong Yang
- Department of Anesthesiology, Affiliated Hospital of Nantong University, #20 Xisi Road, Nantong, 226001, Jiangsu, China
| | - Qun Lu
- Department of Pharmacy, Nantong Third Hospital Affiliated to Nantong University, #60 Middle Qingnian Road, Nantong, 226006, Jiangsu, China
| | - Bingran Chen
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong, 226001, Jiangsu Province, China
| | - Chao Huang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong, 226001, Jiangsu Province, China.
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25
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Chen L, Cui C, Wang Z, Che F, Chen Z, Feng S. Structural Characterization and Antioxidant Activity of β-Glucans from Highland Barley Obtained with Ultrasonic-Microwave-Assisted Extraction. Molecules 2024; 29:684. [PMID: 38338428 PMCID: PMC10856557 DOI: 10.3390/molecules29030684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
In order to efficiently extract β-glucan from highland barley (HBG) and study its structural characterization and antioxidant activity, ultrasonic-microwave-assisted extraction (UME) was optimized by the response surface method (RSM). Under the optimal extraction conditions of 25.05 mL/g liquid-solid ratio, 20 min ultrasonic time, and 480 W microwave intensity, the DPPH radical scavenging activity of HBG reached 25.67%. Two polysaccharide fractions were purified from HBG, namely HBG-1 and HBG-2. Structural characterization indicated that HBG-1 and HBG-2 had similar functional groups, glycosidic linkages, and linear and complex chain conformation. HBG-1 was mainly composed of glucose (98.97%), while HBG-2 primarily consisted of arabinose (38.23%), galactose (22.01%), and xylose (31.60%). The molecular weight of HBG-1 was much smaller than that of HBG-2. Both HBG-1 and HBG-2 exhibited concentration-dependent antioxidant activity, and HBG-1 was more active. This study provided insights into the efficient extraction of HBG and further investigated the structure and antioxidant activities of purified components HBG-1 and HBG-2. Meanwhile, the results of this study imply that HBG has the potential to be an antioxidant in foods and cosmetics.
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Affiliation(s)
- Lihua Chen
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China; (C.C.); (Z.W.)
| | - Chunfeng Cui
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China; (C.C.); (Z.W.)
| | - Zhiheng Wang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China; (C.C.); (Z.W.)
| | - Fuhong Che
- Qinghai Huzhu Barley Wine Co., Ltd., Haidong 810500, China; (F.C.); (Z.C.)
| | - Zhanxiu Chen
- Qinghai Huzhu Barley Wine Co., Ltd., Haidong 810500, China; (F.C.); (Z.C.)
| | - Shengbao Feng
- Qinghai Huzhu Barley Wine Co., Ltd., Haidong 810500, China; (F.C.); (Z.C.)
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Kaya K, Ciftci O, Basak Turkmen N, Taşlıdere A, Gül CC. β-Glucan ameliorates cisplatin-induced oxidative and histological damage in kidney and liver of rats. Biotech Histochem 2024; 99:92-100. [PMID: 38444353 DOI: 10.1080/10520295.2024.2320626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024] Open
Abstract
We investigated the effects of β-glucan (βg) on kidney and liver damage caused by cisplatin (CP), an antineoplastic agent widely used to treat many types of cancer, in a rat model. The side effects of CP in many tissues and organs limit its usage. βg is a natural polysaccharide that is an effective free radical scavenger. A total of 28 rats were randomly divided into four groups. Group 1 was a non-intervention control, only feed and water were given. Group 2 was administered 7 mg/kg CP in a single dose. Group 3 was administered 50 mg/kg βg orally for 14 days. Group 4 was administered βg for 14 days, following a single dose of CP. At the end of the experiment, kidney and liver tissues were evaluated biochemically and histopathologically. Increased thiobarbituric acid-reactive substances (TBARS) levels, as well as decreased catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx) activities, and reduced glutathione (GSH) levels, as well as histological damage, were noted in both the kidney and liver tissues of the CP group. However, βg treatment prevented the oxidative and histopathological effects of CP. The study demonstrates the protective efficacy of βg against CP-induced kidney and liver damage through the effect of its antioxidant properties.
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Affiliation(s)
- Kürşat Kaya
- Department of Medicinal Biochemistry, Faculty of Medicine, Pamukkale University, Denizli, Türkiye
| | - O Ciftci
- Department of Pharmacology, Faculty of Medicine, Pamukkale University, Denizli, Türkiye
| | - N Basak Turkmen
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, İnönü University, Malatya, Türkiye
| | - A Taşlıdere
- Department of Histology and Embryology, Faculty of Medicine, İnönü University, Malatya, Türkiye
| | - C C Gül
- Department of Histology and Embryology, Faculty of Medicine, İnönü University, Malatya, Türkiye
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Ren J, Zhang Y, Pan H, Shi R, Zhu H, Yang R, Zhang L, Chen B, Zhu T, Lu X, Huang C. Mobilization of the innate immune response by a specific immunostimulant β-glucan confers resistance to chronic stress-induced depression-like behavior by preventing neuroinflammatory responses. Int Immunopharmacol 2024; 127:111405. [PMID: 38118316 DOI: 10.1016/j.intimp.2023.111405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 12/22/2023]
Abstract
Pre-stimulation of the innate immune response is an effective strategy to prevent depression-like phenotypes in animals. However, the use of conventional immunostimulants may cause adverse effects. Therefore, the search for agents that stimulate the innate immune response but do not induce a pro-inflammatory response could be a new research direction for the prevention of depression. β-glucan is a polysaccharide from Saccharomyces cerevisiae with unique immunomodulatory activity in microglia without eliciting a pro-inflammatory response that could lead to tissue damage. This suggests that β-glucan may be a suitable drug that can be used to prevent depression-like phenotypes. Our results showed that a single injection of β-glucan 1 day before stress exposure at a dose of 10 or 20 mg/kg, but notat a dose of 5 mg/kg, prevented depression-like behavior in mice treated with chronic unpredictable stress (CUS). This effect of β-glucan disappeared when the time interval between β-glucan and stress was extended from 1 day or 5 days to 10 days, which was rescued by a second injection 10 days after the first injection or by a repeated injection (4×, once daily) 10 days before stress exposure. A single β-glucan injection (20 mg/kg) 1 day before stress exposure prevented the CUS-induced increase in brain pro-inflammatory cytokines, and inhibition of the innate immune response by minocycline (40 mg/kg) abolished the preventive effect of β-glucan on CUS-induced depression-like behaviors and neuroinflammatory responses. These results suggest that β-glucan may prevent chronic stress-induced depression-like phenotypes and neuroinflammatory responses by stimulating the innate immune response.
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Affiliation(s)
- Jie Ren
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Yi Zhang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Hainan Pan
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Ruiting Shi
- Faculty of Humanities and Social Sciences, City University of Macau, Av. Parde Tomas Pereira, Taipa 999078, Macau
| | - Haojie Zhu
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Rongrong Yang
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
| | - Lin Zhang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China; Department of Pharmacy, Affiliated Maternal and Child Health Hospital of Nantong University, #399 Shiji Dadao, Nantong 226007, Jiangsu, China
| | - Bingran Chen
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Tao Zhu
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China
| | - Xu Lu
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China.
| | - Chao Huang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Nantong 226001, Jiangsu, China.
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Lu M, Wei D, Shang J, Li S, Song S, Luo Y, Tang G, Wang C. Suppression of Drosophila antifungal immunity by a parasite effector via blocking GNBP3 and GNBP-like 3, the dual receptors for β-glucans. Cell Rep 2024; 43:113642. [PMID: 38175756 DOI: 10.1016/j.celrep.2023.113642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/14/2023] [Accepted: 12/18/2023] [Indexed: 01/06/2024] Open
Abstract
The tactics used by animal pathogens to combat host immunity are largely unclear. Here, we report the depiction of the virulence-required effector Tge1 deployed by the entomopathogen Metarhizium robertsii to suppress Drosophila antifungal immunity. Tge1 can target both GNBP3 and GNBP-like 3 (GL3), and the latter can bind to β-glucans like GNBP3, whereas the glucan binding by both receptors can be attenuated by Tge1. As opposed to the surveillance GNBP3, GL3 is inducible in Drosophila depending on the Toll pathway via a positive feedback loop mechanism. Losses of GNBP3 and GL3 genes result in the deregulations of protease cascade, Spätzle maturation, and antimicrobial gene expressions in Drosophila upon fungal challenges. Fly survival assays confirm that GL3 plays a more essential role than GNBP3 in combating fungal infections. In addition to evidencing the gene-for-gene interactions between fungi and insects, our data advance insights into Drosophila antifungal immunity.
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Affiliation(s)
- Mengting Lu
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Dongxiang Wei
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junmei Shang
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Shiqin Li
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Shuangxiu Song
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yujuan Luo
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Guirong Tang
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Chengshu Wang
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China.
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McBride MA, Stothers CL, Fensterheim BA, Caja KR, Owen AM, Hernandez A, Bohannon JK, Patil NK, Ali S, Dalal S, Rahim M, Trenary IA, Young JD, Williams DL, Sherwood ER. Bacteria- and fungus-derived PAMPs induce innate immune memory via similar functional, metabolic, and transcriptional adaptations. J Leukoc Biol 2024; 115:358-373. [PMID: 37793181 PMCID: PMC10872320 DOI: 10.1093/jleuko/qiad120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/28/2023] [Accepted: 09/15/2023] [Indexed: 10/06/2023] Open
Abstract
Exposure to pathogen-associated molecular patterns (PAMPs) induces an augmented, broad-spectrum antimicrobial response to subsequent infection, a phenomenon termed innate immune memory. This study examined the effects of treatment with β-glucan, a fungus-derived dectin-1 ligand, or monophosphoryl lipid A (MPLA), a bacteria-derived Toll-like receptor 4 ligand, on innate immune memory with a focus on identifying common cellular and molecular pathways activated by these diverse PAMPs. Treatment with either PAMP prepared the innate immune system to respond more robustly to Pseudomonas aeruginosa infection in vivo by facilitating mobilization of innate leukocytes into blood, recruitment of leukocytes to the site of infection, augmentation of microbial clearance, and attenuation of cytokine production. Examination of macrophages ex vivo showed amplification of metabolism, phagocytosis, and respiratory burst after treatment with either agent, although MPLA more robustly augmented these activities and more effectively facilitated killing of bacteria. Both agents activated gene expression pathways in macrophages that control inflammation, antimicrobial functions, and protein synthesis and suppressed pathways regulating cell division. β-glucan treatment minimally altered macrophage differential gene expression in response to lipopolysaccharide (LPS) challenge, whereas MPLA attenuated the magnitude of the LPS-induced transcriptional response, especially cytokine gene expression. These results show that β-glucan and MPLA similarly augment the innate response to infection in vivo. Yet, MPLA more potently induces alterations in macrophage metabolism, antimicrobial functions, gene transcription and the response to LPS.
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Affiliation(s)
- Margaret A. McBride
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
| | - Cody L. Stothers
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
| | - Benjamin A. Fensterheim
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
| | - Katherine R. Caja
- Department of Anesthesiology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
| | - Allison M. Owen
- Department of Anesthesiology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
| | - Antonio Hernandez
- Department of Anesthesiology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
| | - Julia K. Bohannon
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
- Department of Anesthesiology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
| | - Naeem K. Patil
- Department of Anesthesiology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
| | - Sabah Ali
- Department of Anesthesiology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
| | - Sujata Dalal
- Department of Anesthesiology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
| | - Mohsin Rahim
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, 2301 Vanderbilt Place, Nashville 37235, Tennessee
| | - Irina A. Trenary
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, 2301 Vanderbilt Place, Nashville 37235, Tennessee
| | - Jamey D. Young
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, 2301 Vanderbilt Place, Nashville 37235, Tennessee
- Department of Molecular Physiology and Biophysics, Vanderbilt University, 2215 Garland Avenue, Nashville 37232, Tennessee
| | - David L. Williams
- Department of Surgery, Quillen College of Medicine, East Tennessee State University, 325 North State of Franklin Road, Johnson City 37604, Tennessee
- Center for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, 325 North State of Franklin Road, Johnson City 37604, Tennessee
| | - Edward R. Sherwood
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
- Department of Anesthesiology, Vanderbilt University Medical Center, 1211 Medical Center Drive, Nashville 37232, Tennessee
- Department of Surgery, Quillen College of Medicine, East Tennessee State University, 325 North State of Franklin Road, Johnson City 37604, Tennessee
- Center for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, 325 North State of Franklin Road, Johnson City 37604, Tennessee
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30
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Wang Q, Jiang H, Zhang H, Lu W, Wang X, Xu W, Li J, Lv Y, Li G, Cai C, Yu G. β-Glucan-conjugated anti-PD-L1 antibody enhances antitumor efficacy in preclinical mouse models. Carbohydr Polym 2024; 324:121564. [PMID: 37985066 DOI: 10.1016/j.carbpol.2023.121564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 10/10/2023] [Accepted: 11/03/2023] [Indexed: 11/22/2023]
Abstract
The use of immune checkpoint blockade (ICB) is a promising approach for clinical cancer treatment. However, most of cancer patients do not respond to anti-PD-1/PD-L1 antibody. In this study, we proposed a novel strategy of antibody-β-glucan conjugates (AGC) to enhance the antitumor immune response to ICB therapy. The AGC were constructed by conjugating an anti-PD-L1 antibody with a β-glucan via click chemistry. This design facilitates the delivery of β-glucan into the tumor microenvironment (TME). Furthermore, the bridging effect mediated by AGC can promote the interaction between tumor cells and dendritic cells (DCs), thereby enhancing immunotherapeutic benefits. In the MC38 tumor-bearing mouse model, AGC demonstrated powerful tumor suppression, achieving a tumor suppression rate of 86.7 %. Immunophenotyping, cytokine analysis, RNA sequencing, and FTY720-treated models were combined to elucidate the mechanism underlying AGC function. Compared with anti-PD-L1 antibody, AGC induced an earlier immune response, infiltration of DCs, and activation of preexisting T cells in the TME, with T cells predominantly proliferating locally rather than migrating from other organs. In conclusion, these data suggest that AGC could serve as a promising strategy to improve ICB therapy with prospects for clinical utilization.
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Affiliation(s)
- Qian Wang
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Hao Jiang
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao 266237, China.
| | - Hongli Zhang
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Weiqiao Lu
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Xiao Wang
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Wenfeng Xu
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Jia Li
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Youjing Lv
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Guoyun Li
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao 266237, China
| | - Chao Cai
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao 266237, China
| | - Guangli Yu
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao 266237, China.
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Ezzat W, Mahrose KM, Rizk AM, Ouda MMM, Fathey IA, Othman SI, Allam AA, Rudayni HA, Almasmoum HA, Taha AE, Felemban SG, Tellez-Isaias G, Abd El-Hack ME. Impact of β-glucan dietary supplementation on productive, reproductive performance and physiological response of laying hens under heat stress conditions. Poult Sci 2024; 103:103183. [PMID: 37931401 PMCID: PMC10654246 DOI: 10.1016/j.psj.2023.103183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 09/23/2023] [Accepted: 10/06/2023] [Indexed: 11/08/2023] Open
Abstract
The exploration for effective in-feed additives is growing owing to the global climatic change trend to alleviate the negative effects of heat stress in laying hens. This research assessed the potential of using B-glucan (G) as an antiheat stress agent in Matrouh laying hens subjected to early heat shock programs during the growing period. Factorial design (3 × 3) was used, including 3 levels of heat stress (control, heat shock at 3 d and at 3 d and 8 wk of age) and 3 levels of β-glucan (0, 100, and 200 mg β-glucan /kg diet). During the first 12 wk of egg production (EP), treatments were exposed to heat challenge. The results revealed that heat shock program applications at 3 d and 8 wk of age significantly decreased body weight at 36 wk of age (P < 0.05) and reduced (P < 0.05) feed intake (FI). While significantly (P < 0.05) improved feed conversion ratio (FCR), hemoglobin, RBCs, WBCs, immunoglobulin M (IgM), immunoglobulin G (IgG), and Heat shock protein (HSP70) of the Liver (P < 0.01) as compared with the control group. At the same time, there was a decrease in lymphocyte%, H/L ratio, cortisol, and T3 compared to the thermo-neutral control. When compared to the control group, hens fed a diet containing 200 mg of βG significantly (P < 0.05) improved body weight at 16 wk and final weight at 36 wk, feed conversion (FCR) (g. feed/g. egg mass), hen-day egg production, and egg mass, as well as the digestibility coefficients of crude protein (CP), dry matter (DM), metabolizable energy (ME), and cortisol. The interactions between heat chock programs and βG levels were nonsignificant for the most studied traits except daily feed intake. Therefore, the early heat shock exposure 2 times and supplementation of Β-glucan (βG) at 200 mg/kg diet during the growth period for laying hens that are exposed to heat stress during the reproductive period could improve productive, reproductive performance, HSP70 level and enhance immunity responses.
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Affiliation(s)
- Waheed Ezzat
- Animal Production Research Institute, Agriculture Research Centre, Ministry of Agriculture, Dokki, Giza 12619, Egypt
| | - Khalid M Mahrose
- Poultry Production, Faculty of Technology and Development, Zagazig University, Zagazig, Egypt
| | - Ahmed M Rizk
- Animal Production Research Institute, Agriculture Research Centre, Ministry of Agriculture, Dokki, Giza 12619, Egypt
| | - Magdy M M Ouda
- Animal Production Research Institute, Agriculture Research Centre, Ministry of Agriculture, Dokki, Giza 12619, Egypt
| | - Ibrahim A Fathey
- Animal Production Research Institute, Agriculture Research Centre, Ministry of Agriculture, Dokki, Giza 12619, Egypt
| | - Sarah I Othman
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Ahmed A Allam
- Department of Zoology, Faculty of Science, Beni-suef University, Beni-suef 65211 Egypt
| | - Hassan A Rudayni
- Department of Biology, College of Science, Imam Muhammad bin Saud Islamic University, Riyadh 11623, Saudi Arabia
| | - Hibah A Almasmoum
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ayman E Taha
- Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Alexandria University, Edfina, 22758, Egypt.
| | - Shatha G Felemban
- Medical Laboratory Sciences Department, Fakeeh College for Medical Sciences, Jeddah 21461, Saudi Arabia
| | - Guillermo Tellez-Isaias
- Department of Poultry Science, Division of Agriculture, University of Arkansas, Fayetteville, AR, 72701 USA
| | - Mohamed E Abd El-Hack
- Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
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Sujithra S, Arthanareeswaran G, Ismail AF, Taweepreda W. Isolation, purification and characterization of β-glucan from cereals - A review. Int J Biol Macromol 2024; 256:128255. [PMID: 37984576 DOI: 10.1016/j.ijbiomac.2023.128255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/09/2023] [Accepted: 11/17/2023] [Indexed: 11/22/2023]
Abstract
β-glucans are soluble fibers found in cereal compounds, including barley, oats etc., as an active component. They are used as a dietary fiber to treat cholesterol, diabetes and cardiovascular diseases. These polysaccharides are important because they can provide many therapeutic benefits related to their biological activity in human like inhibiting tumour growth, anti-inflammatory action, etc. All these activities were usually attached to their molecular weight, structure and degree of branching. The present manuscript reviews the background of β-glucan, its characterization techniques, the possible ways to extract β-glucan and mainly focuses on membrane-based purification techniques. The β-glucan separation methods using polymeric membranes, their operational characteristics, purification methods which may yield pure or crude β-glucan and structural analysis methods were also discussed. Future direction in research and development related to β-glucan recovery from cereal were also offered.
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Affiliation(s)
- S Sujithra
- Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli 620 015, Tamil Nadu, India
| | - G Arthanareeswaran
- Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli 620 015, Tamil Nadu, India.
| | - A F Ismail
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai, Johor, Malaysia.
| | - Wirach Taweepreda
- Polymer Science Program, Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90110, Thailand.
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Masuda Y, Yamashita S, Nakayama Y, Shimizu R, Konishi M. Maitake Beta-Glucan Enhances the Therapeutic Effect of Trastuzumab via Antibody-Dependent Cellular Cytotoxicity and Complement-Dependent Cytotoxicity. Biol Pharm Bull 2024; 47:840-847. [PMID: 38616114 DOI: 10.1248/bpb.b23-00802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Trastuzumab, an anti-HER2 monoclonal antibody, is the mainstay treatment for of HER2-positive breast cancer. However, trastuzumab resistance is often observed during treatment. Therefore, new therapeutic strategies are needed to enhance the clinical benefits of trastuzumab. Maitake β-glucan MD-Fraction, isolated from Grifola frondosa, inhibits tumor growth by enhancing immune responses. In this study, we examined the effect of MD-Fraction on trastuzumab treatment of HER2-positive breast cancer. MD-Fraction did not directly inhibit the survival of HER2-positive breast cancer cells, alone or in the presence of trastuzumab in vitro. In HER2-positive xenograft models, the combination of MD-Fraction and trastuzumab was more effective than trastuzumab alone. Peripheral blood lymphocytes and splenic natural killer cells isolated from BALB/c nu/nu mice treated with MD-Fraction showed enhanced trastuzumab-induced antibody-dependent cellular cytotoxicity (ADCC) ex vivo. MD-Fraction-treated macrophages and neutrophils did not show enhanced trastuzumab cytotoxicity in the presence of heat-inactivated serum, but they showed enhanced cytotoxicity in the presence of native serum. These results suggest that MD-Fraction-treated macrophages and neutrophils enhance trastuzumab-induced complement-dependent cellular cytotoxicity (CDCC). Treatment of HER2-positive breast cancer cells with MD-Fraction in the presence of trastuzumab and native serum increased C3a release and tumor cell lysis in a dose-dependent manner, indicating that MD-Fraction enhanced trastuzumab-induced complement-dependent cytotoxicity (CDC) by activating the complement system. This study demonstrates that the combination of trastuzumab and MD-Fraction exerts a greater antitumor effect than trastuzumab alone by enhancing ADCC, CDCC, and CDC in HER2-positive breast cancer.
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Affiliation(s)
- Yuki Masuda
- Department of Microbial Chemistry, Kobe Pharmaceutical University
| | | | | | - Ryohei Shimizu
- Department of Microbial Chemistry, Kobe Pharmaceutical University
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Cui Y, Han X, Hu X, Li T, Li S. Distinctions in structure, rheology, antioxidation, and α-glucosidase inhibitory activity of β-glucans from different species. Int J Biol Macromol 2023; 253:127684. [PMID: 37890753 DOI: 10.1016/j.ijbiomac.2023.127684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/18/2023] [Accepted: 10/24/2023] [Indexed: 10/29/2023]
Abstract
To investigate the distinctions between β-glucans from different species, Lentinula edodes β-glucan (LG), yeast β-glucan (YG), and oat β-glucan (OG) were extracted with hot water and determined as β-d-glucopyranose form by HPLC and FT-IR analysis. The molecular weight (Mw) of LG, YG, and OG was 670 kDa, 341 kDa, and 66 kDa, respectively. Scanning electron microscopy exhibited different micro surfaces of three β-glucans and the relative crystallinity of YG was the highest (29.8 %), followed by that of LG (23.2 %) and OG (20.3 %) determined by X-ray diffraction. Congo red analysis and atomic force microscopy showed that LG and YG have triple helical structures. The apparent viscosity, storage modulus (G'), and loss modulus (G") of β-glucans were increased with the increase of Mw. DPPH·, ABTS+·, HO·, and reducing power assays showed that β-glucans from different species exhibited different antioxidant activities, and the DPPH· scavenging rate of 2 mg/mL LG reached >80 % higher than that of YG and OG. The α-glucosidase inhibitory activity of OG was better than YG and LG. In summary, β-glucans from different species have different structures, physicochemical properties, and physiological functions, which provides theoretical evidence for the precise processing and utilization of β-glucan.
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Affiliation(s)
- Yanmin Cui
- College of Food Science, Shenyang Agricultural University, Shenyang 110161, China
| | - Xuedong Han
- College of Food Science, Shenyang Agricultural University, Shenyang 110161, China
| | - Xiaopei Hu
- College of Food Science, Shenyang Agricultural University, Shenyang 110161, China
| | - Tuoping Li
- College of Food Science, Shenyang Agricultural University, Shenyang 110161, China.
| | - Suhong Li
- College of Food Science, Shenyang Agricultural University, Shenyang 110161, China.
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Sun Y, Zhang S, He H, Chen H, Nie Q, Li S, Cheng J, Zhang B, Zheng Z, Pan S, Huang P, Lian L, Hu J, Nie S. Comprehensive evaluation of the prebiotic properties of Dendrobium officinale polysaccharides, β-glucan, and inulin during in vitro fermentation via multi-omics analysis. Int J Biol Macromol 2023; 253:127326. [PMID: 37820907 DOI: 10.1016/j.ijbiomac.2023.127326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 10/02/2023] [Accepted: 10/06/2023] [Indexed: 10/13/2023]
Abstract
Dietary fiber is crucial for human health mainly due to its impact on gut microbiota structure and metabolites. This study aimed to investigate the impact of Dendrobium officinale polysaccharides (DOP) and two common fibers (β-glucan and inulin) on the gut microbiome structure and metabolic profile in vitro. Fecal samples were obtained from 30 healthy volunteers, which were then individually subjected to fermentation with each type of fiber. The results revealed that all fibers were efficiently degraded by gut microbiota, with DOP exhibiting a slower fermentation rate compared to β-glucan and inulin. The fermentation of all fibers led to a significant increase in the production of short-chain fatty acids (SCFAs) and a reduction in branched-chain fatty acids (BCFAs), sulfides, phenols, and indole. Moreover, the abundance of unclassified Enterobacteriaceae, which was positively correlated with sulfide, phenols, and indole levels, was significantly reduced by all fibers. Additionally, DOP specifically promoted the growth of Parabacteroides, while β-glucan and inulin promoted the growth of Bifidobacterium and Faecalibacterium. Taken together, these findings enhance our understanding of the role of DOP, β-glucan, and inulin in modulating gut microbiota and metabolites, where the fermentation with fecal bacteria from different volunteers could provide valuable insights for personalized therapeutic approaches.
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Affiliation(s)
- Yonggan Sun
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang 330047, China
| | - Shanshan Zhang
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang 330047, China
| | - Huijun He
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang 330047, China
| | - Haihong Chen
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang 330047, China
| | - Qixing Nie
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang 330047, China
| | - Song Li
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang 330047, China
| | - Jiaobo Cheng
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang 330047, China
| | - Baojie Zhang
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang 330047, China
| | - Zhitian Zheng
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang 330047, China
| | - Shijie Pan
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang 330047, China
| | - Ping Huang
- Department of Nutrition, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Lu Lian
- Department of Nutrition, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jielun Hu
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang 330047, China
| | - Shaoping Nie
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang 330047, China.
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Fan S, Zhou Y, Zhao Y, Daglia M, Zhang J, Zhu Y, Bai J, Zhu L, Xiao X. Metabolomics reveals the effects of Lactiplantibacillus plantarum dy-1 fermentation on the lipid-lowering capacity of barley β-glucans in an in vitro model of gut-liver axis. Int J Biol Macromol 2023; 253:126861. [PMID: 37714241 DOI: 10.1016/j.ijbiomac.2023.126861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 07/11/2023] [Accepted: 09/09/2023] [Indexed: 09/17/2023]
Abstract
Bioactive polysaccharides known as the biological response modifiers, can directly interact with intestinal epithelium cells (IEC) and regulate key metabolic processes such as lipid metabolism. Here, the coculture of Caco-2/HT29 monolayer (>400 Ω × cm2) and HepG2 cells was developed to mimic the gut-liver interactions. This system was used to investigate the effects of raw and fermented barley β-glucans (RBG and FBG) on lipid metabolism by directly interacting with IEC. Both RBG and FBG significantly and consistently reduced the lipid droplets and triacylglycerol levels in monoculture and coculture of HepG2 overloaded with oleic acid. Notably, FBG significantly and distinctly elevated PPARα (p < 0.05) and PPARα-responsive ACOX-1 (p < 0.01) gene expressions, promoting lipid degradation in cocultured HepG2. Moreover, the metabolomics analyses revealed that FBG had a unique impact on extracellular metabolites, among them, the differential metabolite thiomorpholine 3-carboxylate was significantly and strongly correlated with PPARα (r = -0.68, p < 0.01) and ACOX-1 (r = -0.76, p < 0.01) expression levels. Taken together, our findings suggest that FBG-mediated gut-liver interactions play a key role in its lipid-lowering effects that are superior to those of RBG. These results support the application of Lactiplantibacillus fermentation for improving hypolipidemic outcomes.
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Affiliation(s)
- Songtao Fan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Yurong Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Yansheng Zhao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Maria Daglia
- Department of Pharmacy, University of Naples Federico II, Naples, Italy; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, China
| | - Jiayan Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Ying Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Juan Bai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Lin Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Xiang Xiao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China.
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37
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Dong QQ, Wu Q, Lu Y, Shi Y, Yang KD, Xu XL, Chen W. Exploring β-glucan as a micro-nano system for oral delivery targeted the colon. Int J Biol Macromol 2023; 253:127360. [PMID: 37827417 DOI: 10.1016/j.ijbiomac.2023.127360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/27/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
The critical role of oral colon-specific delivery systems (OCDDS) is important for delivering active agents to the colon and rectum specifically via the oral route. The use of micro/nanostructured OCDDS further improves drug stability, bioavailability, and retention time, leading to enhanced therapeutic effects. However, designing micro/nanoscale OCDDSs is challenging due to pH changes, enzymatic degradation, and systemic absorption and metabolism. Biodegradable natural polysaccharides are a promising solution to these problems, and β-glucan is one of the most promising natural polysaccharides due to its unique structural features, conformational flexibility, and specific processing properties. This review covers the diverse chemical structures of β-glucan, its benefits (biocompatibility, easy modification, and colon-specific degradation), and various β-glucan-based micro/nanosized OCDDSs, as well as their drawbacks. The potential of β-glucan offers exciting new opportunities for colon-specific drug delivery.
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Affiliation(s)
- Qing-Qing Dong
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China; Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, PR China
| | - Qian Wu
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China
| | - Yi Lu
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China
| | - Yi Shi
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China
| | - Ke-Da Yang
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, PR China
| | - Xiao-Ling Xu
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, PR China.
| | - Wei Chen
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China.
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Pérez-Bassart Z, Bäuerl C, Fabra MJ, Martínez-Abad A, Collado MC, López-Rubio A. Composition, structural properties and immunomodulatory activity of several aqueous Pleurotus β-glucan-rich extracts. Int J Biol Macromol 2023; 253:127255. [PMID: 37827398 DOI: 10.1016/j.ijbiomac.2023.127255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/14/2023]
Abstract
In this work, aqueous extracts from six different Pleurotus species were obtained and their yield, gross composition, β-glucan content, monosaccharide profile, thermal stability, molecular weight distribution, and FT-IR were analyzed before and after purification through ethanol precipitation of the carbohydrate-rich fractions. The bioactivity (anti-inflammatory and immunomodulatory activity) of the various fractions obtained was also analyzed in three different cell cultures and compared with a lentinan control. The trend observed after purification of the aqueous fractions was an increase in the concentration of polysaccharides (especially β-glucans), a decrease in ash, glucosamine and protein content and the elimination of low molecular weight (Mw) compounds, thus leaving in the purified samples high Mw populations with increased thermal stability. Interestingly, all these purified fractions displayed immunomodulatory capacity when tested in THP-1 macrophages and most of them also showed significant activity in HEK-hTLR4 cells, highlighting the bioactivity observed for Pleurotus ostreatus (both the extracts obtained from the whole mushroom and from the stipes). This specific species was richer in heteropolysaccharides, having moderate β-glucan content and being enriched upon purification in a high Mw fraction with good thermal stability.
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Affiliation(s)
- Zaida Pérez-Bassart
- Food Safety and Preservation Department, Institute of Agrochemistry and Food Technology-Spanish National Research Council (IATA-CSIC), Agustin Escardino 7, 46980 Paterna, Valencia, Spain
| | - Christine Bäuerl
- Department of Biotechnology, Institute of Agrochemistry and Food Technology-Spanish National Research Council (IATA-CSIC), Agustin Escardino 7, 46980 Paterna, Valencia, Spain
| | - Maria Jose Fabra
- Food Safety and Preservation Department, Institute of Agrochemistry and Food Technology-Spanish National Research Council (IATA-CSIC), Agustin Escardino 7, 46980 Paterna, Valencia, Spain
| | - Antonio Martínez-Abad
- Food Safety and Preservation Department, Institute of Agrochemistry and Food Technology-Spanish National Research Council (IATA-CSIC), Agustin Escardino 7, 46980 Paterna, Valencia, Spain
| | - Maria Carmen Collado
- Department of Biotechnology, Institute of Agrochemistry and Food Technology-Spanish National Research Council (IATA-CSIC), Agustin Escardino 7, 46980 Paterna, Valencia, Spain
| | - Amparo López-Rubio
- Food Safety and Preservation Department, Institute of Agrochemistry and Food Technology-Spanish National Research Council (IATA-CSIC), Agustin Escardino 7, 46980 Paterna, Valencia, Spain.
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Zhu Z, He L, Bai Y, Xia L, Sun X, Qi C. Yeast β-glucan modulates macrophages and improves antitumor NK-cell responses in cancer. Clin Exp Immunol 2023; 214:50-60. [PMID: 37455659 PMCID: PMC10711352 DOI: 10.1093/cei/uxad080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 05/24/2023] [Accepted: 07/14/2023] [Indexed: 07/18/2023] Open
Abstract
As the largest proportion of myeloid immune cells in tumors, macrophages play an important role in tumor growth and regression according to their different phenotypes, thus reprogramming macrophages has become a new research direction for cancer immunotherapy. Yeast-derived whole β-glucan particles (WGPs) can induce M0 macrophages to differentiate into M1 macrophages and convert M2 macrophages and tumor-associated macrophages (TAMs) into M1 macrophages. In vitro, studies have confirmed that WGP-treated macrophages increase the activating receptors in natural killer cells (NK cells) and enhance the cytotoxicity of NK cells. The extracellular regulated protein kinases (ERK) signaling pathway is involved in WGP-mediated regulation of the macrophage phenotype. Further in vivo studies show that oral WGP can significantly delay tumor growth, which is related to the increased proportion of macrophages and NK cells, the macrophage phenotype reversal, and the enhancement of NK cell immune function. NK-cell depletion reduces the therapeutic efficacy of WGP in tumor-bearing mice. These findings revealed that in addition to T cells, NK cells also participate in the antitumor process of WGP. It was confirmed that WGP regulates the macrophage phenotype to regulate NK-cell function.
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Affiliation(s)
- Zhichao Zhu
- Laboratory of Oncology, Medical Research Center, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Liuyang He
- Laboratory of Oncology, Medical Research Center, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yu Bai
- Laboratory of Oncology, Medical Research Center, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Lei Xia
- Laboratory of Oncology, Medical Research Center, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Xiao Sun
- Laboratory of Oncology, Medical Research Center, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Chunjian Qi
- Laboratory of Oncology, Medical Research Center, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
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Elgendy DI, Othman AA, Eid MM, El-Kowrany SI, Sallam FA, Mohamed DA, Zineldeen DH. The impact of β-glucan on the therapeutic outcome of experimental Trichinella spiralis infection. Parasitol Res 2023; 122:2807-2818. [PMID: 37737322 PMCID: PMC10667415 DOI: 10.1007/s00436-023-07964-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 09/02/2023] [Indexed: 09/23/2023]
Abstract
Trichinellosis is a cosmopolitan zoonosis that is caused mainly by Trichinella spiralis infection. The human disease ranges from mild to severe and fatality may occur. The treatment of trichinellosis still presents a challenge for physicians. Anti-inflammatory drugs are usually added to antiparasitic agents to alleviate untoward immuno-inflammatory responses and possible tissue damage but they are not without adverse effects. Thus, there is a need for the discovery of safe and effective compounds with anti-inflammatory properties. This study aimed to evaluate the activity of β-glucan during enteral and muscular phases of experimental T. spiralis infection as well as its therapeutic potential as an adjuvant to albendazole in treating trichinellosis. For this aim, mice were infected with T. spiralis and divided into the following groups: early and late β-glucan treatment, albendazole treatment, and combined treatment groups. Infected mice were subjected to assessment of parasite burden, immunological markers, and histopathological changes in the small intestines and muscles. Immunohistochemical evaluation of NF-κB expression in small intestinal and muscle tissues was carried out in order to investigate the mechanism of action of β-glucan. Interestingly, β-glucan potentiated the efficacy of albendazole as noted by the significant reduction of counts of muscle larvae. The inflammatory responses in the small intestine and skeletal muscles were mitigated with some characteristic qualitative changes. β-glucan also increased the expression of NF-κB in tissues which may account for some of its effects. In conclusion, β-glucan showed a multifaceted beneficial impact on the therapeutic outcome of Trichinella infection and can be regarded as a promising adjuvant in the treatment of trichinellosis.
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Affiliation(s)
- Dina I Elgendy
- Medical Parasitology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Ahmad A Othman
- Medical Parasitology Department, Faculty of Medicine, Tanta University, Tanta, Egypt.
| | - Mohamed M Eid
- Medical Parasitology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Samy I El-Kowrany
- Medical Parasitology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Fersan A Sallam
- Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Dareen A Mohamed
- Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Doaa H Zineldeen
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
- College of Medicine, Sulaiman AlRajhi University, 51942, Albukairiyah, Saudi Arabia
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41
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Saetang N, Ramaraj R, Praphruet R, Unpaprom Y. Unlocking the benefits of split gill mushroom: Chemical analysis and prebiotic properties of schizophyllan extract. Int J Biol Macromol 2023; 252:126544. [PMID: 37634777 DOI: 10.1016/j.ijbiomac.2023.126544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/14/2023] [Accepted: 08/24/2023] [Indexed: 08/29/2023]
Abstract
The edible split gill mushroom is considered both a nutritive and therapeutic superfood, as well as rich in schizophyllan and protein. Prebiotic properties and other biological effects distinguish the schizophyllan (β-glucan). Thus, this research investigates the identity of the mushroom strain, the nutritional composition of this mushroom, and the schizophyllan extract for further analysis, including its prebiotic activity and so on. The experimental results revealed that this mushroom was identified as Schizophyllum commune, comprising more excellent carbohydrates, protein, crude fiber, lower fat, and no heavy metal detection. Moreover, this extract consisted of pharmaceutical hydrophobin (14.0-18.5 kDa), lectin protein (21-35 kDa), bioactive purpurin or red pigment, including the prebiotic β-glucan stimulating the proliferation of probiotic bacteria isolated from yogurt. Therefore, both S. commune and the schizophyllan extract can be used as a prebiotic candidate, functional food, and nutraceutical product.
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Affiliation(s)
- Nuttapong Saetang
- Program in Biotechnology, Faculty of Science, Maejo University, Chiang Mai 50290, Thailand; Sustainable Resources and Sustainable Engineering Research Lab, Maejo University, Chiang Mai 50290, Thailand
| | - Rameshprabu Ramaraj
- Sustainable Resources and Sustainable Engineering Research Lab, Maejo University, Chiang Mai 50290, Thailand; APEC Research Center for Advanced Biohydrogen Technology (ACABT), Thailand Chiang Mai Branch Center, Maejo University, Chiang Mai 50290, Thailand; School of Renewable Energy, Maejo University, Chiang Mai 50290, Thailand
| | - Ruenkaew Praphruet
- Institute of Product Quality and Standardization, Maejo University, Chiang Mai 50290, Thailand
| | - Yuwalee Unpaprom
- Program in Biotechnology, Faculty of Science, Maejo University, Chiang Mai 50290, Thailand; Sustainable Resources and Sustainable Engineering Research Lab, Maejo University, Chiang Mai 50290, Thailand; APEC Research Center for Advanced Biohydrogen Technology (ACABT), Thailand Chiang Mai Branch Center, Maejo University, Chiang Mai 50290, Thailand.
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Duan X, Ding J, Qi C. [Research progress of dendritic cell-associated C-type lectin-1 (dectin-1) in anti-tumor immunology]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2023; 39:1039-1043. [PMID: 37980556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2023]
Abstract
Dendritic cell-associated C-type lectin 1 (dectin-1) receptor is the main pattern recognition receptor for β-glucan on the fungal cell wall. Dectin-1 is extensively expressed in myeloid cells including dendritic cells (DCs), macrophages, and neutrophils. After binding with endogenous and exogenous ligands, dectin-1 can induce intracellular signal transduction and trigger a series of cellular immune responses, and participate in anti-infection and anti-tumor processes. The interaction between dectin-1 and its different ligands triggers different signal activation pathways and cell functions. The recognition of dectin-1 with β-glucan promotes the maturation of DCs and its ability to present antigen to T cells, which induces the proliferation of cytotoxic T lymphocytes, and activates the specific immune response in vivo, thus playing an anti-tumor role. The article summarizes the structure and signaling pathway of the dectin-1 molecule and its research progress in anti-tumor immunity.
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Affiliation(s)
- Xuehan Duan
- Oncology Institute, Changzhou No. 2 People's Hospital, the Affiliated Hospital of Nanjing Medical University, Changzhou 213000, China
| | - Jun Ding
- Oncology Institute, Changzhou No. 2 People's Hospital, the Affiliated Hospital of Nanjing Medical University, Changzhou 213000, China
| | - Chunjian Qi
- Oncology Institute, Changzhou No. 2 People's Hospital, the Affiliated Hospital of Nanjing Medical University, Changzhou 213000, China.*Corresponding author, E-mail:
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Guluarte C, Pereyra A, Ramírez-Hernández E, Zenteno E, Luis Sánchez-Salgado J. The immunomodulatory and antioxidant effects of β-glucans in invertebrates. J Invertebr Pathol 2023; 201:108022. [PMID: 37984608 DOI: 10.1016/j.jip.2023.108022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 11/13/2023] [Accepted: 11/17/2023] [Indexed: 11/22/2023]
Abstract
β-glucans (βGs) are carbohydrate polymers linked by β-1,3, 1,4 or 1,6 bonds, they have been used to protect against potential pathogens and prevent lethal diseases. The immune system possesses several receptors that identify a wide range of structures and trigger cellular and humoral mechanisms. However, the mechanisms by which βGs activate the immune system of invertebrate organisms have not been fully clarified. This review is focused on evaluating the effect of βGs on innate immune system in invertebrates. βGs stimulate different cellular and humoral mechanisms, such as phagocytosis, oxygen species production, extracellular trap formation, proPO system, and antimicrobial peptide synthesis, moreover, βGs increase survival rate and decrease pathogen load in several species.
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Affiliation(s)
- Crystal Guluarte
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, CP 04510 México City, Mexico
| | - Alí Pereyra
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, CP 04510 México City, Mexico
| | - Eleazar Ramírez-Hernández
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, CP 04510 México City, Mexico
| | - Edgar Zenteno
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, CP 04510 México City, Mexico
| | - José Luis Sánchez-Salgado
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, CP 04510 México City, Mexico.
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de Assis Beneti SA, Dos Reis IC, Fierro-Castro C, Moromizato BS, do Valle Polycarpo G, Miasaki CT, Biller JD. Stress-associated β -glucan administration stimulates the TLR - MYD88 - NFKB1 signaling pathway in Nile tilapia (Oreochromis niloticus). Fish Shellfish Immunol 2023; 142:109089. [PMID: 37722438 DOI: 10.1016/j.fsi.2023.109089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 09/14/2023] [Accepted: 09/16/2023] [Indexed: 09/20/2023]
Abstract
There is evidence that the administration of β-glucan can effectively activate several defense mechanisms, such as the Tlr-Myd88-Nfkb1 pathway that induces the expression of immune cytokines. Thus, the objective of this work was to evaluate whether β-glucan acts on the mechanisms of gene transcription via the Tlr-Myd88-Nfkb1 pathway in Nile tilapia under stress after challenge with Streptococcus agalactiae. Therefore, we evaluated the expression of immune system genes such as toll-like receptors 1 (tlr1), toll-like receptors 2 (tlr2), primary myeloid differentiation response gene (myd88) and nuclear factor kappa B1 (nfkb1). A total of 408 fish were distributed in 24 polyethylene boxes and randomly divided into eight groups with 3 replications each: C15: Tilapias received a control diet (free of β-glucan) for 15 days and were sampled after the 15th day of the experiment; C15D: Tilapias received a control diet (free of β-glucan) for 15 days, were challenged on the 14th day and were sampled at the 15th day of the experiment; β15: Tilapias received experimental diet (1g kg-1 of β-glucan) for 15 days and were sampled after 15 days; β15D: Tilapias received an experimental diet (1g kg-1 of β-glucan) for 15 days, were challenged on the 14th day and were sampled at the 15th day of the experiment; C30: Tilapias received a control diet (free of β-glucan) for 30 days and were sampled on the 30th day of the experiment; C30D: Tilapias received a control diet (free of β-glucan) for 30 days, were challenged on the 29th day and were sampled at the 30th day of the experiment; β30: Tilapias received experimental diet (1g kg-1 of β-glucan) for 30 days and were sampled after 30 days and β30D: Tilapias received experimental diet (1g kg-1 of β-glucan) for 30 days, were challenged on the 29th day and were sampled at 30 of the experiment. In the fish sampled at 15 and 30 days of the experiment, after being anesthetized and killed by brain section, cranial kidney and spleen were collected for gene expression analysis. The analyzes showed that the association of β-glucan and stressful management modulated the immune system, using the Tlr-Myd88-Nfkb1 signaling pathway, indicating that this compound can be used to promote early defense and protect fish against diseases.
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Affiliation(s)
- Simone Andrea de Assis Beneti
- Departamento de Produção Animal, Faculdade de Ciências Agrárias e Tecnológicas, UNESP, Campus de Dracena, Rod. Cmte. João Ribeiro de Barros, km 651- Dracena, SP, 17900-000, Brazil
| | - Ingrid Camargo Dos Reis
- Departamento de Patologia, Reprodução e Saúde Única, Faculdade de Ciências Agrárias e Veterinárias, UNESP, Campus de Jaboticabal, Via de Acesso Prof.Paulo Donato Castellane s/n- Jaboticabal, SP, 14884-900, Brazil
| | - Camino Fierro-Castro
- Departamento de Molecular Biologia y Genetica, Facultad de Ciencias Biológicas y Ambientales, Universitat of León, Campus de Vegazana s/n, 24071, León, Spain
| | - Basia Schlichting Moromizato
- Departamento de Produção Animal, Faculdade de Ciências Agrárias e Tecnológicas, UNESP, Campus de Dracena, Rod. Cmte. João Ribeiro de Barros, km 651- Dracena, SP, 17900-000, Brazil
| | - Gustavo do Valle Polycarpo
- Departamento de Produção Animal, Faculdade de Ciências Agrárias e Tecnológicas, UNESP, Campus de Dracena, Rod. Cmte. João Ribeiro de Barros, km 651- Dracena, SP, 17900-000, Brazil
| | - Celso Tadao Miasaki
- Departamento de Produção Animal, Faculdade de Ciências Agrárias e Tecnológicas, UNESP, Campus de Dracena, Rod. Cmte. João Ribeiro de Barros, km 651- Dracena, SP, 17900-000, Brazil
| | - Jaqueline Dalbello Biller
- Departamento de Produção Animal, Faculdade de Ciências Agrárias e Tecnológicas, UNESP, Campus de Dracena, Rod. Cmte. João Ribeiro de Barros, km 651- Dracena, SP, 17900-000, Brazil.
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McFarlin BK, Bridgeman EA, Vingren JL, Hill DW. Dry blood spot samples to monitor immune-associated mRNA expression in intervention studies: Impact of Baker's yeast beta glucan. Methods 2023; 219:39-47. [PMID: 37741562 DOI: 10.1016/j.ymeth.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 09/20/2023] [Accepted: 09/20/2023] [Indexed: 09/25/2023] Open
Abstract
Monitoring immunological response to physical stressors in a field setting is challenging because existing methods require a laboratory visit and traditional blood collection via venipuncture. The purpose of this study was to determine if our optimized dry blood spot (DBS) methodology yields sufficient total RNA to quantify the effect of Baker's Yeast Beta Glucan supplementation (BYBG; Wellmune; 250 mg/d) on post-exercise mRNA expression. Participants had venous DBS samples collected prior to (PRE), and immediately (POST), 2 (2H), and 4 (4H) hrs after completion of a 90 min run/walk trial in a hot, humid environment. Total RNA extracted from DBS was analyzed using a 574-plex Human Immunology mRNA panel (Nanostring). BYBG supplementation was associated with the increased expression of 12 mRNAs (LTB4R, PML, PRFM1, TNFRSF14, LCK, MYD88, STAT3, CCR1, TNFSF10, LILRB3, MME, and STAT6) and decreased expression of 4 mRNAs (MAP4K1, IKBKG, CD5, and IL4R) across all post-exercise time points. In addition to individually changed mRNA targets, we found eleven immune-response pathways that were significantly enriched by BYBG following exercise (TNF Family signaling, immunometabolism, oxidative stress, toll-like receptor (TLR) signaling, Treg differentiation, autophagy, chemokine signaling, complement system, Th2 differentiation, cytokine signaling, and innate immune). The present approach showed that DBS samples can be used to yield useful information about mRNA biomarkers in an intervention study. We have found that BYBG supplementation induces changes at the mRNA level that support the immune system and reduce susceptibility to opportunistic infection (i.e., upper respiratory tract infection) and facilitate improved physical recovery from exercise. Future studies may look to use DBS sampling for testing other nutritional, health, or medical interventions.
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Affiliation(s)
- Brian K McFarlin
- University of North Texas, Applied Physiology Laboratory, Dept. of KHPR (Kinesiology, Health Promotion, and Recreation), United States; University of North Texas, Dept. of Biological Sciences, United States.
| | - Elizabeth A Bridgeman
- University of North Texas, Applied Physiology Laboratory, Dept. of KHPR (Kinesiology, Health Promotion, and Recreation), United States; University of North Texas, Dept. of Biological Sciences, United States
| | - Jakob L Vingren
- University of North Texas, Applied Physiology Laboratory, Dept. of KHPR (Kinesiology, Health Promotion, and Recreation), United States; University of North Texas, Dept. of Biological Sciences, United States
| | - David W Hill
- University of North Texas, Applied Physiology Laboratory, Dept. of KHPR (Kinesiology, Health Promotion, and Recreation), United States
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Fu H, Qi M, Yang Q, Li M, Yao G, Bu W, Zheng T, Pi X. Effects of dietary chito-oligosaccharide and β-glucan on the water quality and gut microbiota, intestinal morphology, immune response, and meat quality of Chinese soft-shell turtle ( Pelodiscus sinensis). Front Immunol 2023; 14:1266997. [PMID: 38022669 PMCID: PMC10643201 DOI: 10.3389/fimmu.2023.1266997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Chito-oligosaccharides (COS) and β-glucan are gradually being applied in aquaculture as antioxidants and immunomodulators. However, this study examined the effects of dietary supplementation of COS and β-glucan on the water quality, gut microbiota, intestinal morphology, non-specific immunity, and meat quality of Chinese soft-shell turtle. To investigate the possible mechanisms, 3-year-old turtles were fed basal diet (CK group) and 0.1%, 0.5%, and 1% COS or β-glucan supplemented diet for 4 weeks. Colon, liver, blood and muscle tissues, colon contents, water and sediment of paddy field samples were collected and analyzed after feeding 2 and 4 weeks. The results indicated that COS and β-glucan altered microbial community composition and diversity in Chinese soft-shell turtles. The relative abundance of Cellulosilyticum, Helicobacter and Solibacillus were increased after feeding COS, while Romboutsia, Akkermansia and Paraclostridium were increased after feeding β-glucan, whereas Cetobacterium, Vibrio and Edwardsiella were enriched in the control group. Furthermore, colon morphology analysis revealed that COS and β-glucan improved the length and number of intestinal villi, and the effect of 0.5% β-glucan was more obvious. Both β-glucan and COS significantly improved liver and serum lysozyme activity and antibacterial capacity. COS significantly increased the total antioxidant capacity in the liver. Further, 0.1% β-glucan significantly increased the activity of hepatic alkaline phosphatase, which closely related to the bacteria involved in lipid metabolism. Moreover, dietary supplementation with 1% COS and 1% β-glucan significantly enhanced the content of total amino acids, especially umami amino acids, in muscle tissue, with β-glucan exerting a stronger effect than COS. Additionally, these two prebiotics promoted the quality of culture water in paddy fields and reshaped the bacterial community composition of aquaculture environment. All these phenotypic changes were closely associated with the gut microbes regulated by these two prebiotics. In summary, the findings suggest that dietary supplementation with COS and β-glucan in Pelodiscus sinensis could modulate the gut microbiota, improve intestinal morphology, enhance non-specific immunity and antioxidant capacity of liver and serum, increase meat quality, and improve the culture water environment. This study provides new insights and a comprehensive understanding of the positive effects of COS and β-glucan on Pelodiscus sinensis.
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Affiliation(s)
- Hao Fu
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Ming Qi
- Zhejiang Fisheries Technical Extension Center, Hangzhou, China
| | - Qingman Yang
- Shaoxing Fisheries Technical Extension Center, Shaoxing, China
| | - Ming Li
- Jinhua Fisheries Technical Extension Center, Jinhua, China
| | - Gaohua Yao
- Zhejiang Fisheries Technical Extension Center, Hangzhou, China
| | - Weishao Bu
- Qingjiang Professional Cooperative for Ecological Farming Turtles, Lishui, China
| | - Tianlun Zheng
- Zhejiang Fisheries Technical Extension Center, Hangzhou, China
| | - Xionge Pi
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Institute of Rural Development, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
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Ko H, Peng H, Cheng AN, Chou HE, Hou H, Kuo W, Liu W, Kuo MY, Lee AY, Cheng S. Metastasis and immunosuppression promoted by mtDNA and PD-L1 in extracellular vesicles are reversed by WGP β-glucan in oral squamous cell carcinoma. Cancer Sci 2023; 114:3857-3872. [PMID: 37525561 PMCID: PMC10551585 DOI: 10.1111/cas.15919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 07/06/2023] [Accepted: 07/13/2023] [Indexed: 08/02/2023] Open
Abstract
The suppressive regulatory T cells (Treg) are frequently upregulated in cancer patients. This study aims to demonstrate the hypothesis that arecoline could induce the secretion of mitochondrial (mt) DNA D-loop and programmed cell death-ligand 1 (PD-L1) in extracellular vesicles (EVs), and attenuate T-cell immunity by upregulated Treg cell numbers. However, the immunosuppression could be reversed by whole glucan particle (WGP) β-glucan in oral squamous cell (OSCC) patients. Arecoline-induced reactive oxygen specimen (ROS) production and cytosolic mtDNA D-loop were analyzed in OSCC cell lines. mtDNA D-loop, PD-L1, IFN-γ, and Treg cells were also identified for the surgical specimens and sera of 60 OSCC patients. We demonstrated that higher mtDNA D-loop, PD-L1, and Treg cell numbers were significantly correlated with larger tumor size, nodal metastasis, advanced clinical stage, and areca quid chewing. Furthermore, multivariate analysis confirmed that higher mtDNA D-loop levels and Treg cell numbers were unfavorable independent factors for survival. Arecoline significantly induced cytosolic mtDNA D-loop leakage and PD-L1 expression, which were packaged by EVs to promote immunosuppressive Treg cell numbers. However, WGP β-glucan could elevate CD4+ and CD8+ T-cell numbers, mitigate Treg cell numbers, and promote oral cancer cell apoptosis. To sum up, arecoline induces EV production carrying mtDNA D-loop and PD-L1, and in turn elicits immune suppression. However, WGP β-glucan potentially enhances dual effects on T-cell immunity and cell apoptosis and we highly recommend its integration with targeted and immune therapies against OSCC.
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Affiliation(s)
- Hui‐Hsin Ko
- Graduate Institute of Clinical Dentistry, School of DentistryNational Taiwan UniversityTaipeiTaiwan
- School of DentistryNational Taiwan UniversityTaipeiTaiwan
- Department of Dentistry, College of MedicineNational Taiwan University HospitalTaipeiTaiwan
- Department of DentistryNational Taiwan University Hospital Hsin‐Chu BranchHsin‐ChuTaiwan
| | - Hsin‐Hui Peng
- Graduate Institute of Clinical Dentistry, School of DentistryNational Taiwan UniversityTaipeiTaiwan
- School of DentistryNational Taiwan UniversityTaipeiTaiwan
- Department of Dentistry, College of MedicineNational Taiwan University HospitalTaipeiTaiwan
- Department of DentistryNational Taiwan University Hospital Hsin‐Chu BranchHsin‐ChuTaiwan
| | | | - Han‐Yi Elizabeth Chou
- School of DentistryNational Taiwan UniversityTaipeiTaiwan
- Department of Dentistry, College of MedicineNational Taiwan University HospitalTaipeiTaiwan
- Graduate Institute of Oral Biology, School of DentistryNational Taiwan UniversityTaipeiTaiwan
| | - Hsin‐Han Hou
- School of DentistryNational Taiwan UniversityTaipeiTaiwan
- Department of Dentistry, College of MedicineNational Taiwan University HospitalTaipeiTaiwan
- Graduate Institute of Oral Biology, School of DentistryNational Taiwan UniversityTaipeiTaiwan
| | - Wei‐Ting Kuo
- School of DentistryNational Taiwan UniversityTaipeiTaiwan
- Department of Dentistry, College of MedicineNational Taiwan University HospitalTaipeiTaiwan
- Graduate Institute of Oral Biology, School of DentistryNational Taiwan UniversityTaipeiTaiwan
| | - Wei‐Wen Liu
- School of DentistryNational Taiwan UniversityTaipeiTaiwan
- Department of Dentistry, College of MedicineNational Taiwan University HospitalTaipeiTaiwan
- Graduate Institute of Oral Biology, School of DentistryNational Taiwan UniversityTaipeiTaiwan
| | - Mark Yen‐Ping Kuo
- Graduate Institute of Clinical Dentistry, School of DentistryNational Taiwan UniversityTaipeiTaiwan
- School of DentistryNational Taiwan UniversityTaipeiTaiwan
- Department of Dentistry, College of MedicineNational Taiwan University HospitalTaipeiTaiwan
- Graduate Institute of Oral Biology, School of DentistryNational Taiwan UniversityTaipeiTaiwan
| | - Alan Yueh‐Luen Lee
- National Institute of Cancer ResearchNational Health Research InstitutesMiaoliTaiwan
- Department of Biotechnology, College of Life ScienceKaohsiung Medical UniversityKaohsiungTaiwan
| | - Shih‐Jung Cheng
- Graduate Institute of Clinical Dentistry, School of DentistryNational Taiwan UniversityTaipeiTaiwan
- School of DentistryNational Taiwan UniversityTaipeiTaiwan
- Department of Dentistry, College of MedicineNational Taiwan University HospitalTaipeiTaiwan
- Graduate Institute of Oral Biology, School of DentistryNational Taiwan UniversityTaipeiTaiwan
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48
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Zhang J, Zheng M, Zhou L, Li X, Yu Y, Wang J, Sun B. Oat β-glucan alleviates muscle atrophy via promoting myotube formation and suppressing protein degradation. J Sci Food Agric 2023; 103:6252-6262. [PMID: 37160715 DOI: 10.1002/jsfa.12696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/02/2023] [Accepted: 05/05/2023] [Indexed: 05/11/2023]
Abstract
BACKGROUND The dangerous inducers of muscle atrophy are inflammatory reaction, oxidative stress, and cachexia, etc. β-Glucan, an important food derived active ingredient, has been reported to exert anti-inflammatory effects, however, its effects on regulating myoblast differentiation and protein degradation are unclear. This study is aimed to investigate the mechanism of oat β-glucan on alleviating muscle atrophy. RESULTS The results showed that oat β-glucan treatment reversed tumor necrosis factor-α (TNF-α) induced abnormal myoblast differentiation and reduced muscle atrophy related MuRF-1 and Atrogin-1 protein expression. The similar phenomenon was observed after using MCC950 (NLRP3 specific inhibitor) or AS1842856 (FoxO1 specific inhibitor) to suppress NLRP3 and FoxO1 expression, respectively. Exposure to β-glucan or AS1842856 also inhibited TNF-α induced the activation of TLR4/NF-κB pathway by inactivating FoxO1, and subsequently suppressed the expression of NLRP3. CONCLUSION Our results indicate that oat β-glucan exerts essential roles in promoting myoblast differentiation and alleviating muscle atrophy via inactivating FoxO1 and NLRP3 inflammasome signal pathway. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Jingjie Zhang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, China Food Flavor and Nutrition Health Innovation, Beijing Technology and Business University, Beijing, China
| | - Mengjun Zheng
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, China Food Flavor and Nutrition Health Innovation, Beijing Technology and Business University, Beijing, China
| | - Linyue Zhou
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, China Food Flavor and Nutrition Health Innovation, Beijing Technology and Business University, Beijing, China
| | - Xinping Li
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, China Food Flavor and Nutrition Health Innovation, Beijing Technology and Business University, Beijing, China
| | - Yonghui Yu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, China Food Flavor and Nutrition Health Innovation, Beijing Technology and Business University, Beijing, China
| | - Jing Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, China Food Flavor and Nutrition Health Innovation, Beijing Technology and Business University, Beijing, China
| | - Baoguo Sun
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, China Food Flavor and Nutrition Health Innovation, Beijing Technology and Business University, Beijing, China
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Do HJ, Kim YS, Oh TW. Effect of Polycan, a β-Glucan from Aureobasidium pullulans SM-2001, on Inflammatory Response and Intestinal Barrier Function in DSS-Induced Ulcerative Colitis. Int J Mol Sci 2023; 24:14773. [PMID: 37834221 PMCID: PMC10572787 DOI: 10.3390/ijms241914773] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 09/27/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Ulcerative colitis (UC), a subtype of inflammatory bowel disease, is a chronic gastrointestinal inflammatory disease with unclear etiology and pathophysiology. Herein, we determined the effects of extracellular polysaccharides purified from Aureobasidium pullulans SM-2001 (Polycan) on tight junction protein expression, inflammation, and apoptosis in a dextran sodium sulfate (DSS)-induced acute colitis model. Fifty mice were divided into normal, DSS, DSS + Polycan 250 mg/kg (Polycan 250), DSS + Polycan 500 mg/kg (Polycan 500), and DSS + 5-aminosalicylic acid 100 mg/kg (5-ASA) groups. Their body weights, colon lengths, histological changes in colon tissue, and tight junction function were observed. Results showed that Polycan 250, Polycan 500, and 5-ASA significantly inhibited body weight loss compared with DSS. Similar to 5-ASA, Polycan 500 exhibited preventive effects on colon length shortening and histological changes in colon tissues. Polycan inhibited the DSS-induced decrease in fluorescein isothiocyanate-dextran permeability and myeloperoxidase activity. Moreover, Polycan significantly recovered serum cytokine (e.g., tumor necrosis factor-α, interleukin (IL)-6, and IL-1β) or mRNA expression in colon tissue compared with DSS. Polycan also inhibited apoptosis by reducing caspase-3 activity and the Bcl-2 associated X/B-cell lymphoma 2 (Bcl-2) ratio. Additionally, DSS treatment significantly reduced microbial abundance and diversity, but the administration of Polycan reversed this effect. Collectively, Polycan protected intestinal barrier function and inhibited inflammation and apoptosis in DSS-induced colitis.
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Affiliation(s)
- Hyun Ju Do
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea;
| | - Young-Suk Kim
- Glucan Co., Ltd., 25-15, Worasan-ro 950 beon-gil, Munsan-eup, Jinju-si 52840, Gyeongsangnam-do, Republic of Korea;
| | - Tae Woo Oh
- Korean Medicine (KM)-Application Center, Korea Institute of Oriental Medicine (KIOM), Daegu 41062, Republic of Korea
- Department of Korean Convergence Medical Science, University of Science & Technology (UST), 1672 Yuseongdae-ro, Daejeon 34054, Yuseong-gu, Republic of Korea
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50
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Anaya EU, Amin AE, Wester MJ, Danielson ME, Michel KS, Neumann AK. Dectin-1 multimerization and signaling depends on fungal β-glucan structure and exposure. Biophys J 2023; 122:3749-3767. [PMID: 37515324 PMCID: PMC10541497 DOI: 10.1016/j.bpj.2023.07.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 06/30/2023] [Accepted: 07/25/2023] [Indexed: 07/30/2023] Open
Abstract
Dectin-1A is a C-type lectin innate immunoreceptor that recognizes β-(1,3;1,6)-glucan, a structural component of Candida species cell walls. β-Glucans can adopt solution structures ranging from random coil to insoluble fiber due to tertiary (helical) and quaternary structure. Fungal β-glucans of medium and high molecular weight are highly structured, but low molecular weight glucan is much less structured. Despite similar affinity for Dectin-1, the ability of glucans to induce Dectin-1A-mediated signaling correlates with degree of structure. Glucan denaturation experiments showed that glucan structure determines agonistic potential, but not receptor binding affinity. We explored the impact of glucan structure on molecular aggregation of Dectin-1A. Stimulation with glucan signaling decreased Dectin-1A diffusion coefficient. Fluorescence measurements provided direct evidence of ligation-induced Dectin-1A aggregation, which positively correlated with increasing glucan structure content. In contrast, Dectin-1A is predominantly in a low aggregation state in resting cells. Molecular aggregates formed during interaction with highly structured, agonistic glucans did not exceed relatively small (<15 nm) clusters of a few engaged receptors. Finally, we observed increased molecular aggregation of Dectin-1A at fungal particle contact sites in a manner that positively correlated with the degree of exposed glucan on the particle surface. These results indicate that Dectin-1A senses the solution conformation of β-glucans through their varying ability to drive receptor dimer/oligomer formation and activation of membrane proximal signaling events.
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Affiliation(s)
- Eduardo U Anaya
- Department of Pathology, University of New Mexico, School of Medicine, Albuquerque, New Mexico
| | - Akram Etemadi Amin
- Department of Pathology, University of New Mexico, School of Medicine, Albuquerque, New Mexico; Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico
| | - Michael J Wester
- Department of Mathematics and Statistics, University of New Mexico, Albuquerque, New Mexico
| | | | | | - Aaron K Neumann
- Department of Pathology, University of New Mexico, School of Medicine, Albuquerque, New Mexico.
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