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Wang T, Zhou N, Ding F, Hao Z, Galindo-Villegas J, Du Z, Su X, Zhang M. Xylanase enhances gut microbiota-derived butyrate to exert immune-protective effects in a histone deacetylase-dependent manner. MICROBIOME 2024; 12:212. [PMID: 39434145 PMCID: PMC11492574 DOI: 10.1186/s40168-024-01934-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2024] [Accepted: 09/14/2024] [Indexed: 10/23/2024]
Abstract
BACKGROUND Commensal bacteria in the intestine release enzymes to degrade and ferment dietary components, producing beneficial metabolites. However, the regulatory effects of microbial-derived enzymes on the intestinal microbiota composition and the influence on host health remain elusive. Xylanase can degrade xylan into oligosaccharides, showing wide application in feed industry. RESULTS To validate the immune-protective effects of xylanase, Nile tilapia was used as the model and fed with xylanase. The results showed that dietary xylanase improved the survival rate of Nile tilapia when they were challenged with Aeromonas hydrophila. The transcriptome analysis showed significant enrichment of genes related to interleukin-17d (il-17d) signaling pathway in the xylanase treatment group. High-throughput sequencing revealed that dietary xylanase altered the composition of the intestinal microbiota and directly promoted the proliferation of Allobaculum stercoricanis which could produce butyrate in vitro. Consequently, dietary xylanase supplementation increased the butyrate level in fish gut. Further experiment verified that butyrate supplementation enhanced the expression of il-17d and regenerating islet-derived 3 gamma (reg3g) in the gut. The knockdown experiment of il-17d confirmed that il-17d is necessary for butyrate to protect Nile tilapia from pathogen resistance. Flow cytometry analysis indicated that butyrate increased the abundance of IL-17D+ intestinal epithelial cells in fish. Mechanistically, butyrate functions as an HDAC3 inhibitor, enhancing il-17d expression and playing a crucial role in pathogen resistance. CONCLUSION Dietary xylanase significantly altered the composition of intestinal microbiota and increased the content of butyrate in the intestine. Butyrate activated the transcription of il-17d in intestinal epithelial cells by inhibiting histone deacetylase 3, thereby protecting the Nile tilapia from pathogen infection. This study elucidated how microbial-derived xylanase regulates host immune function, providing a theoretical basis for the development and application of functional enzymes. Video Abstract.
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Affiliation(s)
- Tong Wang
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Nannan Zhou
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Feifei Ding
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Zhenzhen Hao
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Jorge Galindo-Villegas
- Department of Genomics, Faculty of Biosciences and Aquaculture, Nord University, Bodø, 8049, Norway
| | - Zhenyu Du
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Xiaoyun Su
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Meiling Zhang
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai, 200241, China.
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Tawfik MM, Lorgen-Ritchie M, Król E, McMillan S, Norambuena F, Bolnick DI, Douglas A, Tocher DR, Betancor MB, Martin SAM. Modulation of gut microbiota composition and predicted metabolic capacity after nutritional programming with a plant-rich diet in Atlantic salmon (Salmo salar): insights across developmental stages. Anim Microbiome 2024; 6:38. [PMID: 38951941 PMCID: PMC11218362 DOI: 10.1186/s42523-024-00321-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 06/05/2024] [Indexed: 07/03/2024] Open
Abstract
To promote sustainable aquaculture, the formulation of Atlantic salmon (Salmo salar) feeds has changed in recent decades, focusing on replacing standard marine-based ingredients with plant-based alternatives, increasingly demonstrating successful outcomes in terms of fish performance. However, little is known about how these plant-based diets may impact the gut microbiota at first feeding and onwards. Nutritional programming (NP) is one strategy applied for exposing fish to a plant-based (V) diet at an early stage in life to promote full utilisation of plant-based ingredients and prevent potential adverse impacts of exposure to a plant-rich diet later in life. We investigated the impact of NP on gut microbiota by introducing fish to plant ingredients (V fish) during first feeding for a brief period of two weeks (stimulus phase) and compared those to fish fed a marine-based diet (M fish). Results demonstrated that V fish not only maintained growth performance at 16 (intermediate phase) and 22 (challenge phase) weeks post first feeding (wpff) when compared to M fish but also modulated gut microbiota. PERMANOVA general effects revealed gut microbiota dissimilarity by fish group (V vs. M fish) and phases (stimulus vs. intermediate vs. challenge). However, no interaction effect of both groups and phases was demonstrated, suggesting a sustained impact of V diet (nutritional history) on fish across time points/phases. Moreover, the V diet exerted a significant cumulative modulatory effect on the Atlantic salmon gut microbiota at 16 wpff that was not demonstrated at two wpff, although both fish groups were fed the M diet at 16 wpff. The nutritional history/dietary regime is the main NP influencing factor, whereas environmental and host factors significantly impacted microbiota composition in M fish. Microbial metabolic reactions of amino acid metabolism were higher in M fish when compared to V fish at two wpff suggesting microbiota played a role in digesting the essential amino acids of M feed. The excessive mucin O-degradation revealed in V fish at two wpff was mitigated in later life stages after NP, suggesting physiological adaptability and tolerance to V diet. Future studies are required to explore more fully how the microbiota functionally contributes to the NP.
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Affiliation(s)
- Marwa Mamdouh Tawfik
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 2TZ, UK.
- Hydrobiology Department, Veterinary Research Institute, National Research Centre, Giza, 12622, Egypt.
| | - Marlene Lorgen-Ritchie
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 2TZ, UK
| | - Elżbieta Król
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 2TZ, UK
| | - Stuart McMillan
- Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, UK
| | | | - Daniel I Bolnick
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, 06269-3043, USA
| | - Alex Douglas
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 2TZ, UK
| | - Douglas R Tocher
- Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, UK
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, Guangdong, China
| | - Mónica B Betancor
- Institute of Aquaculture, University of Stirling, Stirling, FK9 4LA, UK
| | - Samuel A M Martin
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 2TZ, UK.
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El-Sayed Y, Khalil W, Fayez N, Mohamed Abdel-Fattah AF. Enhancing effect of oregano essential oil and Bacillus subtilis on broiler immune function, intestinal morphology and growth performance. BMC Vet Res 2024; 20:112. [PMID: 38519928 PMCID: PMC10958958 DOI: 10.1186/s12917-024-03960-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 02/28/2024] [Indexed: 03/25/2024] Open
Abstract
The present study evaluated the effect of two categories of feed additives on chicken performance through immunological and intestinal histo-morphometric measurements. A total of 150 one-day-old male broiler chicks (Cobb) were randomly assigned to three groups. Group I received a non-supplemented basal diet. While groups II and III were treated with a basal diet supplemented with oregano essential oil (OEO) and Bacillus subtilis, respectively, in water for 28 days. Blood samples were taken at 6, 18 and 28 days for hematological analysis, phagocytosis, lymphocyte proliferation and measuring antibody responses. Additionally, growth performance indices were recorded weekly. The results showed that groups supplemented with OEO and B. subtilis improved growth performance expressed by a significant increase in weight gain (P < 0.05), with a significant reduction (P < 0.05) in feed conversion ratio (FCR). Hematological findings indicated a significant increase in blood parameters as well as a significant increase in phagocytic % & phagocytic index at all time points with a greater probiotic effect. On the other hand, OEO produced a significant increase in lymphocyte proliferation at 18 & 28 days. Humoral immunity revealed a significant increase in serum antibody titer phytobiotic & probiotic-fed groups at time points of 18 & 28 days with a superior phytobiotic effect. The histological examination showed a significant increase in villi length, villi width, crypt depth & V/C ratio. In conclusion, these results indicated positive effects of B. subtilis & OEO on both growth and immunity and could be considered effective alternatives to the antibiotic.
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Affiliation(s)
- Yehia El-Sayed
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt
| | - Waleed Khalil
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt
| | - Nada Fayez
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt.
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Passantino L, Corriero A, Pousis C, Zupa R, Perillo A, Superio J, Kumari Swain J, Foss A, Galindo-Villegas J, Ventriglia G. Hepatic melanomacrophage centers in the arctic cultured fish Cyclopterus lumpus are not indicative of its health state. AQUACULTURE (AMSTERDAM, NETHERLANDS) 2024; 581:740417. [PMID: 39175872 PMCID: PMC11338164 DOI: 10.1016/j.aquaculture.2023.740417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/11/2023] [Accepted: 11/22/2023] [Indexed: 08/24/2024]
Abstract
The lumpfish, Cyclopterus lumpus, holds significant promise as a candidate for large-scale aquaculture production, particularly in its role as a cleaner fish used to manage sea lice infestations in Atlantic salmon Salmo salar farming. Melanomacrophage centers (MMCs) represent polymorphic structures present in the hemolymphopoietic organs of various vertebrates, serving as a widely applicable histological indicator of the fish immune and health status. This study aims to investigate the histochemical characteristics of MMCs within lumpfish livers and to compare MMC density between hatchery-produced (farmed) and wild individuals. Liver samples were collected from 34 lumpfish and subjected to a range of staining techniques, including haematoxylin-eosin, Azan-Mallory's trichrome, Masson-Fontana, Perls-Van Geison, Mallory's hemofuscin, immunohistochemical detection of cytochrome P450 monooxygenase 1 A (CYP1A), and the terminal deoxynucleotidyl transferase-mediated d'UTP nick-end labelling (TUNEL) method. Hepatocytes from hatchery-produced males exhibited notably high lipid content. Additionally, cells showing positive staining with Masson-Fontana, likely associated with the monocyte/macrophage lineage, were identified. Furthermore, small MMCs containing melanin, lipofuscin-ceroids, and ferric ions were detected. While the density of single monocytes/macrophages was markedly higher in hatchery-produced males, no significant discrepancies in MMCs density were observed between wild and hatchery-produced fish, or between males and females of the same origin. The study also revealed the presence of necrotic foci, characterized by hypertrophic hepatocytes positive for both TUNEL and CYP1A staining. These hypertrophic hepatocytes displayed large lipid droplets and pycnotic nuclei, with hatchery-produced males showing a higher numerical density of such foci. In contrast to findings in other fish species, the study found that MMCs did not appear to serve as reliable markers of health status in lumpfish. This conclusion was reached as MMCs density did not exhibit a correlation with necrotic foci or hepatocyte lipid content.
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Affiliation(s)
- L. Passantino
- DiMePRe-J, University of Bari Aldo Moro, Valenzano 70010, Italy
| | - A. Corriero
- Department of Veterinary Medicine, University of Bari Aldo Moro, Valenzano 70010, Italy
| | - C. Pousis
- Department of Veterinary Medicine, University of Bari Aldo Moro, Valenzano 70010, Italy
| | - R. Zupa
- Department of Veterinary Medicine, University of Bari Aldo Moro, Valenzano 70010, Italy
| | - A. Perillo
- DiMePRe-J, University of Bari Aldo Moro, Valenzano 70010, Italy
| | - J. Superio
- Department of Genomics, Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
| | | | - A. Foss
- Akvaplan-niva, Fram Centre, 9296 Tromsø, Norway
| | - J. Galindo-Villegas
- Department of Genomics, Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
| | - G. Ventriglia
- Department of Veterinary Medicine, University of Bari Aldo Moro, Valenzano 70010, Italy
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De Bruyn F, Bonnet N, Baruchet M, Sabatier M, Breton I, Bourqui B, Jankovic I, Horcajada MN, Prioult G. Galacto-oligosaccharide preconditioning improves metabolic activity and engraftment of Limosilactobacillus reuteri and stimulates osteoblastogenesis ex vivo. Sci Rep 2024; 14:4329. [PMID: 38383774 PMCID: PMC10881571 DOI: 10.1038/s41598-024-54887-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 02/18/2024] [Indexed: 02/23/2024] Open
Abstract
A probiotic-related benefit for the host is inherently linked to metabolic activity and integration in the gut ecosystem. To facilitate these, probiotics are often combined with specific prebiotics in a synbiotic formulation. Here, we propose an approach for improving probiotic metabolic activity and engraftment. By cultivating the probiotic strain in the presence of a specific prebiotic (preconditioning), the bacterial enzymatic machinery is geared towards prebiotic consumption. Today, it is not known if preconditioning constitutes an advantage for the synbiotic concept. Therefore, we assessed the effects galacto-oligosaccharide (GOS) addition and preconditioning on GOS of Limosilactobacillus reuteri DSM 17938 on ex vivo colonic metabolic profiles, microbial community dynamics, and osteoblastogenesis. We show that adding GOS and preconditioning L. reuteri DSM 17938 act on different scales, yet both increase ex vivo short-chain fatty acid (SCFA) production and engraftment within the microbial community. Furthermore, preconditioned supernatants or SCFA cocktails mirroring these profiles decrease the migration speed of MC3T3-E1 osteoblasts, increase several osteogenic differentiation markers, and stimulate bone mineralization. Thus, our results demonstrate that preconditioning of L. reuteri with GOS may represent an incremental advantage for synbiotics by optimizing metabolite production, microbial engraftment, microbiome profile, and increased osteoblastogenesis.
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Affiliation(s)
- Florac De Bruyn
- Nestlé Research and Development, Nestléstrasse 3, 3510, Konolfingen, Switzerland.
| | - Nicolas Bonnet
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, Lausanne, Switzerland
| | - Michaël Baruchet
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, Lausanne, Switzerland
| | - Magalie Sabatier
- Nestlé Institute of Health Sciences, Route du Jorat 57, 1000, Lausanne, Switzerland
| | - Isabelle Breton
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, Lausanne, Switzerland
| | - Bertrand Bourqui
- Nestlé Research and Development, Nestléstrasse 3, 3510, Konolfingen, Switzerland
| | - Ivana Jankovic
- Nestlé Health Science, Route du Jorat 57, 1000, Lausanne, Switzerland
| | - Marie-Noëlle Horcajada
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, Lausanne, Switzerland
| | - Guénolée Prioult
- Nestlé Health Science, Route du Jorat 57, 1000, Lausanne, Switzerland
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Lee SJ, Noh DI, Lee YS, Hasan MT, Hur SW, Lee S, Jeong SM, Lee JM, Lee EW, Kim KW, Jang WJ. Effects of host-associated low-temperature probiotics in olive flounder (Paralichthys olivaceus) aquaculture. Sci Rep 2024; 14:2134. [PMID: 38273006 PMCID: PMC10810782 DOI: 10.1038/s41598-024-52491-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/19/2024] [Indexed: 01/27/2024] Open
Abstract
This study investigated the effects of supplementation of low-temperature probiotics isolated from the intestines of olive flounder on the growth performance, digestibility, and regulation of intestinal microbiota and the expression of genes related to growth, immunity, and apoptosis in olive flounder. Bacteria showing high growth at approximately 15-20 °C, which is the temperature of olive flounder culture, were isolated and confirmed to be Pseudomonas species through 16S rRNA gene sequence analysis. Whole-genome sequencing revealed that the strain has a 6,195,122 bp single circular chromosome and a guanine-cytosine content of 59.9%. In the feeding trial, supplementation with 1 × 108 CFU/g of the isolate strain positively modulated growth performances, digestive enzyme activity, and gut microbiota composition of olive flounder. RT-qPCR for the comparison of growth, immunity, and apoptosis-related gene expression levels showed no significant differences between the groups. Therefore, the isolated host-associated low-temperature probiotics improved the growth performance of olive flounder by causing positive changes in digestive activity and intestinal microbial composition without affecting host gene expression.
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Affiliation(s)
- Su-Jeong Lee
- Biopharmaceutical Engineering Major, Division of Applied Bioengineering, Dong-Eui University, Busan, 47340, South Korea
| | - Da-In Noh
- Biopharmaceutical Engineering Major, Division of Applied Bioengineering, Dong-Eui University, Busan, 47340, South Korea
| | - Young-Sun Lee
- Biopharmaceutical Engineering Major, Division of Applied Bioengineering, Dong-Eui University, Busan, 47340, South Korea
| | - Md Tawheed Hasan
- Department of Aquaculture, Sylhet Agricultural University, Sylhet, 3100, Bangladesh
- Department of Biotechnology, Pukyong National University, Busan, 48513, South Korea
| | - Sang Woo Hur
- Aquafeed Research Center, National Institute of Fisheries Science, Pohang, 37517, South Korea
| | - Seunghan Lee
- Aquafeed Research Center, National Institute of Fisheries Science, Pohang, 37517, South Korea
| | - Seong-Mok Jeong
- Aquafeed Research Center, National Institute of Fisheries Science, Pohang, 37517, South Korea
| | - Jong Min Lee
- Department of Biotechnology, Pukyong National University, Busan, 48513, South Korea
| | - Eun-Woo Lee
- Biopharmaceutical Engineering Major, Division of Applied Bioengineering, Dong-Eui University, Busan, 47340, South Korea.
- Core-Facility Center for Tissue Regeneration, Dong-Eui University, Busan, 47340, South Korea.
| | - Kang-Woong Kim
- Aquafeed Research Center, National Institute of Fisheries Science, Pohang, 37517, South Korea.
| | - Won Je Jang
- Biopharmaceutical Engineering Major, Division of Applied Bioengineering, Dong-Eui University, Busan, 47340, South Korea.
- Core-Facility Center for Tissue Regeneration, Dong-Eui University, Busan, 47340, South Korea.
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Shaposhnikov LA, Tishkov VI, Pometun AA. Lactobacilli and Klebsiella: Two Opposites in the Fight for Human Health. BIOCHEMISTRY. BIOKHIMIIA 2024; 89:S71-S89. [PMID: 38621745 DOI: 10.1134/s0006297924140050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 04/17/2024]
Abstract
The problem of antibiotic resistance is currently very acute. Numerous research and development of new antibacterial drugs are being carried out that could help cope with various infectious agents. One of the promising directions for the search for new antibacterial drugs is the search among the probiotic strains present in the human gastrointestinal tract. This review is devoted to characteristics of one of these probiotic strains that have been studied to date: Limosilactobacillus reuteri. The review discusses its properties, synthesis of various compounds, as well as role of this strain in modulating various systems of the human body. The review also examines key characteristics of one of the most harmful among the currently known pathogenic organisms, Klebsiella, which is significantly resistant to antibiotics existing in medical practice, and also poses a great threat of nosocomial infections. Discussion of characteristics of the two strains, which have opposite effects on human health, may help in creation of new effective antibacterial drugs without significant side effects.
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Affiliation(s)
- Leonid A Shaposhnikov
- Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Moscow, 119071, Russia
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Vladimir I Tishkov
- Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Moscow, 119071, Russia
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Anastasia A Pometun
- Bach Institute of Biochemistry, Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences, Moscow, 119071, Russia.
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia
- Institute of Medicine, Peoples' Friendship University of Russia (RUDN University), Moscow, 117198, Russia
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Yadav K, Singh D, Singh MR, Minz S, Princely Ebenezer Gnanakani S, Sucheta, Yadav R, Vora L, Sahu KK, Bagchi A, Singh Chauhan N, Pradhan M. Preclinical study models of psoriasis: State-of-the-art techniques for testing pharmaceutical products in animal and nonanimal models. Int Immunopharmacol 2023; 117:109945. [PMID: 36871534 DOI: 10.1016/j.intimp.2023.109945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 02/18/2023] [Accepted: 02/23/2023] [Indexed: 03/06/2023]
Abstract
Local and systemic treatments exist for psoriasis, but none can do more than control its symptoms because of its numerous unknown mechanisms. The lack of validated testing models or a defined psoriatic phenotypic profile hinders antipsoriatic drug development. Despite their intricacy, immune-mediated diseases have no improved and precise treatment. The treatment actions may now be predicted for psoriasis and other chronic hyperproliferative skin illnesses using animal models. Their findings confirmed that a psoriasis animal model could mimic a few disease conditions. However, their ethical approval concerns and inability to resemble human psoriasis rightly offer to look for more alternatives. Hence, in this article, we have reported various cutting-edge techniques for the preclinical testing of pharmaceutical products for the treatment of psoriasis.
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Affiliation(s)
- Krishna Yadav
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh 492010, India; Raipur Institute of Pharmaceutical Education and Research, Sarona, Raipur, Chhattisgarh 492010, India
| | - Deependra Singh
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh 492010, India
| | - Manju Rawat Singh
- University Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh 492010, India
| | - Sunita Minz
- Department of Pharmacy, Indira Gandhi National Tribal University, Amarkantak, India
| | | | - Sucheta
- School of Medical and Allied Sciences, K. R. Mangalam University, Gurugram, Haryana 122103, India
| | - Renu Yadav
- School of Medical and Allied Sciences, K. R. Mangalam University, Gurugram, Haryana 122103, India
| | - Lalitkumar Vora
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, BT9 7BL, UK
| | - Kantrol Kumar Sahu
- Institute of Pharmaceutical Research, GLA University, Mathura, Uttar Pradesh 281406, India
| | - Anindya Bagchi
- Tumor Initiation & Maintenance Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 North Torrey Pines Road La Jolla, CA 92037, USA
| | - Nagendra Singh Chauhan
- Drugs Testing Laboratory Avam Anusandhan Kendra (AYUSH), Government Ayurvedic College, Raipur, India
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Rhee MS, Alqam ML, Jones BC, Phadungpojna S, Day D, Hitchcock TM. Characterization of a live Cutibacterium acnes subspecies defendens strain XYCM42 and clinical assessment as a topical regimen for general skin health and cosmesis. J Cosmet Dermatol 2023; 22:1031-1045. [PMID: 36374551 DOI: 10.1111/jocd.15510] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/18/2022] [Accepted: 11/01/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND When formulating topical products to treat skin diseases and addressing general skin health and cosmesis, most of the focus has traditionally been placed on how any given ingredient may impact the structure, function, and health of human skin elements. However, recent research is beginning to highlight the importance of the skin microbiome in relation to certain skin conditions and general cosmesis. Cutibacterium acnes is one of the most prolific skin-specific bacterial species. Research has shown that the species is divided into subspecies, some of which are thought to be beneficial to the skin. This paper aims to determine the efficacy of strainXYCM42, a C. acnes subspecies defendens derived strain designed to improve the health and appearance of the skin. METHODS In vitro studies were performed on human keratinocyte and fibroblast monolayers, human peripheral blood mononuclear cells (PBMC), and skin explants to elucidate the effects of live XYCM42 cells and their ferment on human skin cells and tissues. Subsequently, clinical studies were performed using XYCM42-based topical regimens designed to deliver and support the engraftment of live XYCM42 cells onto subjects' skin. Two studies were performed, a 3-week pilot study (n = 10) and a 8-week pivotal study (n = 121). In the latter, 32 subjects were enrolled for an in-clinic portion for efficacy evaluation, with clinic visits occurring at Baseline, Week 1, Week 4, and Week 8. RESULTS In vitro data suggest that XYCM42 and its ferment filtrate have potential to provide benefits to the skin via antioxidant, anti-inflammatory, and select antimicrobial activities. Clinical observation demonstrated that a XYCM42-containing regimen supports a healthy skin environment, promotes increased skin hydration, decreases erythema, calms the skin, and regulates sebum production. CONCLUSION These studies provide further evidence that specific strains of C. acnes, such as XYCM42, have a more beneficial function regarding skin health and appearance than was previously thought. Appropriate use of formulations derived from symbiotic strains within the skin microbiome can support the development of novel, beneficial topicals.
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Affiliation(s)
- Mun Su Rhee
- Department of Biological Sciences, Crown Laboratories, Johnson City, Tennessee, USA
| | - Mona L Alqam
- Medical Affairs and Clinical Development, Crown Laboratories, Dallas, Texas, USA
| | - Brian C Jones
- Medical Affairs and Clinical Development, Crown Laboratories, Dallas, Texas, USA
| | - Sasima Phadungpojna
- Department of Product Development, Crown Laboratories, Johnson City, Tennessee, USA
| | - Doris Day
- New York University Langone Health Medical Centers, New York, New York, USA
| | - Thomas M Hitchcock
- Department of Scientific Affairs, Crown Laboratories, Dallas, Texas, USA
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10
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Ghonimy A, Chen Z, Li J. The effect of C/N ratio and its frequent addition on commensal and pathogenic bacterial abundances in shrimp Litopeaneus vanname gut in a biofloc system: Ratio and frequent addition interaction matters. PLoS One 2023; 18:e0283841. [PMID: 37011061 PMCID: PMC10069773 DOI: 10.1371/journal.pone.0283841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 03/19/2023] [Indexed: 04/05/2023] Open
Abstract
The environmental biotic and abiotic factors form a complicated relationship with the host intestinal microbiota. In our study, we applied different levels of C/N ratio (10, 15, 20) and frequent addition times (once, twice, triple a day) in a factorial experimental design. GC/LC analysis of filtrated biofloc (BF) samples revealed the highest relative fold change for the untargeted bioactive molecules among different treatments, whereas the 16s rRNA analysis revealed the change in the shrimp gut microbiota composition. Based on the available literature on the relationship between the bioactive molecules and the available bacteria in this study, the next bioactive molecules were discussed. Proline was associated with Bacteroidota, Flavobacteriaceae, Gammaproteobacteria, and Flavobacteriales. Plumbagine was associated with Norcardiaceae. Phytosphingosin was associated with Bacteroidota. Phosphocholine compound was associated with Bacteroidota. The monobutyl ether, benzofuran, and piperidone were associated with Micobacteriaceae and Mycobacterium. Generally, C/N 15 and 20 once a day, and C/N 20 triple a day have showed a merit over other treatments in term of low pathogenic and unfavorable bacteria, and high commensal bacterial abundances. The revealed bioactive molecule composition showed the complicity of BF as a source for novel compounds as biosecurity agents in BF system. These molecules could be developed to feed additives upgrading the biosecurity level in aquaculture systems. Other bioactive molecules require future studies to reveal novel molecules in term of aquaculture biosecurity control.
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Affiliation(s)
- Abdallah Ghonimy
- Key Laboratory of Sustainable Development of Marine Fisheries, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Zhao Chen
- Key Laboratory of Sustainable Development of Marine Fisheries, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Jian Li
- Key Laboratory of Sustainable Development of Marine Fisheries, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
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11
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Zhou J, Feng M, Zhang W, Kuang R, Zou Q, Su J, Yuan G. Oral administration of hepcidin and chitosan benefits growth, immunity, and gut microbiota in grass carp ( Ctenopharyngodon idella). Front Immunol 2022; 13:1075128. [PMID: 36591242 PMCID: PMC9798086 DOI: 10.3389/fimmu.2022.1075128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022] Open
Abstract
Intensive high-density culture patterns are causing an increasing number of bacterial diseases in fish. Hepcidin links iron metabolism with innate immunity in the process of resisting bacterial infection. In this study, the antibacterial effect of the combination of hepcidin (Cihep) and chitosan (CS) against Flavobacterium columnare was investigated. The dosing regimen was also optimized by adopting a feeding schedule of every three days and every seven days. After 56 days of feeding experiment, grass carp growth, immunity, and gut microbiota were tested. In vitro experiments, Cihep and CS can regulate iron metabolism and antibacterial activity, and that the combination of Cihep and CS had the best protective effect. In vivo experiments, Cihep and CS can improve the growth index of grass carp. After challenge with Flavobacterium columnare, the highest survival rate was observed in the Cihep+CS-3d group. By serum biochemical indicators assay and Prussian blue staining, Cihep and CS can increase iron accumulation and decrease serum iron levels. The contents of lysozyme and superoxide dismutase in Cihep+CS-3d group increased significantly. Meanwhile, Cihep and CS can significantly reduce the pathological damage of gill tissue. The 16S rRNA sequencing results showed that Cihep and CS can significantly increase the abundance and diversity of grass carp gut microbiota. These results indicated that the protective effect of consecutive 3-day feeding followed by a 3-day interval was better than that of consecutive 7-day feeding followed by a 7-day interval, and that the protective effect of Cihep in combination with chitosan was better than that of Cihep alone. Our findings optimize the feeding pattern for better oral administration of Cihep in aquaculture.
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Affiliation(s)
- Jiancheng Zhou
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China,Wuhan DaBeiNong (DBN) Aquaculture Technology Co. LTD, Wuhan, Hubei, China
| | - Mengzhen Feng
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Weixiang Zhang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Rui Kuang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Qi Zou
- Wuhan DaBeiNong (DBN) Aquaculture Technology Co. LTD, Wuhan, Hubei, China
| | - Jianguo Su
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Gailing Yuan
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China,*Correspondence: Gailing Yuan,
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12
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Gao L, Zhang Z, Xing Z, Li Q, Kong N, Wang L, Song L. The variation of intestinal autochthonous bacteria in cultured tiger pufferfish Takifugu rubripes. Front Cell Infect Microbiol 2022; 12:1062512. [PMID: 36583108 PMCID: PMC9792791 DOI: 10.3389/fcimb.2022.1062512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/29/2022] [Indexed: 12/15/2022] Open
Abstract
Intestinal autochthonous bacteria play important roles in the maintenance of the physiological homeostasis of animals, especially contributing to the host immune system. In the present study, the variation of autochthonous bacterial community in the intestinal tract of 2-7 months-old tiger pufferfish Takifugu rubripes and bacterial communities in the seawater of recirculating aquaculture system (RAS) and the following offshore sea cage aquaculture system (OSCS) were analyzed during the aquaculture period from May to October 2021. Proteobacteria was found to be the most dominant phyla in both intestinal and seawater bacterial communities, which accounted for 68.82% and 65.65% of the total bacterial abundance, respectively. Arcobacter was the most core bacterial taxon in the intestinal bacterial community, with the most dominant abundance (42.89%) at the genus level and dominant positions in co-occurrence relationships with other bacterial taxa (node-betweenness value of 150). Enterococcaceae was specifically enriched in the intestinal bacterial community of pufferfishes from RAS, while Vibrionaceae was enriched in the intestinal bacterial community from OSCS. The F-values of beta diversity analysis between intestinal and seawater bacterial communities generally increased from May (6.69) to October (32.32), indicating the increasing differences between the intestinal and seawater bacterial communities along with the aquaculture process. Four bacterial taxa of Weissella sp., Akkermansia muciniphila, Dietzia sp. and Psychrobacter pacificensis had significant correlations with immune response parameters, and they were suggested to be the indicators for immune status and pathological process of pufferfish. The knowledge about the specific core bacteria, potentially pathogenic bacteria and the change of bacterial community in the intestinal tract of cultured pufferfish is of great scientific significance and will contribute to the understanding of intestinal bacterial homeostasis and biosecurity practice in pufferfish aquaculture.
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Affiliation(s)
- Lei Gao
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, China,Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, China,Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, China
| | - Ziyang Zhang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, China,Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, China,Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, China
| | - Zhen Xing
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, China,Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, China,Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, China
| | - Qingsong Li
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, China,Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, China,Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, China
| | - Ning Kong
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, China,Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, China,Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, China
| | - Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, China,Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, China,Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, China,Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, China,Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, China,Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, China,Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China,*Correspondence: Linsheng Song,
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13
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Zhao L, Huang J, Wu S, Li Y, Pan Y. Integrative analysis of miRNA and mRNA expression associated with the immune response in the intestine of rainbow trout (Oncorhynchus mykiss) infected with infectious hematopoietic necrosis virus. FISH & SHELLFISH IMMUNOLOGY 2022; 131:54-66. [PMID: 36174908 DOI: 10.1016/j.fsi.2022.09.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 09/06/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Rainbow trout (Oncorhynchus mykiss), an economically important cold-water fish cultured worldwide, suffers from infectious hematopoietic necrosis virus (IHNV) infection, resulting in huge financial losses. In order to understand the immune response of rainbow trout during virus infection, we explored trout intestine transcriptome profiles following IHNV challenge, and identified 3355 differentially expressed genes (DEGs) and 80 differentially expressed miRNAs (DEMs). Transcriptome analysis revealed numerous DEGs involved in immune responses, such as toll-like receptor 3 (TLR3), toll-like receptor 7/8 (TLR7/8), tripartite motif-containing 25 (TRIM25), DExH-Box helicase 58 (DHX58), interferon-induced with helicase C domain 1 (IFIH1), interferon regulatory factor 3 (IRF3/7), signal transducer and activator of transcription 1 (STAT1) and heat shock protein 90-alpha 1 (HSP90A1). Integrated analysis identified five key miRNAs (miR-19-y, miR-181-z, miR-203-y, miR-143-z and miR-206-y) targeting at least two important immune genes (TRIM25, DHX58, STAT1, TLR7/8 and HSP90A1). Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses showed that DEGs and target genes were significantly enriched in various immune-related terms including immune system process, binding, cell part and pathways of Toll-like receptor signalling, RIG-I-like receptor signalling, NOD-like receptor signalling, JAK-STAT signalling, PI3K-Akt signalling, NF-kappa B signalling, IL-17 signalling and AGE-RAGE signalling. In addition, protein-protein interaction networks (PPI) was used to display highly interactive DEG networks involving eight immune-related pathways. The expression trends of 12 DEGs and 10 DEMs were further verified by quantitative real-time PCR, which confirmed the reliability of the transcriptome sequencing results. This study expands our understanding of the immune response of rainbow trout infected with IHNV, and provides valuable resources for future studies on the immune molecular mechanism and disease resistance breeding.
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Affiliation(s)
- Lu Zhao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, 730070, China
| | - Jinqiang Huang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, 730070, China.
| | - Shenji Wu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, 730070, China
| | - Yongjuan Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, 730070, China; College of Science, Gansu Agricultural University, Lanzhou, 730070, China
| | - Yucai Pan
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, 730070, China
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14
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Tursi A, Papa V, Lopetuso LR, Settanni CR, Gasbarrini A, Papa A. Microbiota Composition in Diverticular Disease: Implications for Therapy. Int J Mol Sci 2022; 23:14799. [PMID: 36499127 PMCID: PMC9736941 DOI: 10.3390/ijms232314799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 12/05/2022] Open
Abstract
Gut microbiota (GM) composition and its imbalance are crucial in the pathogenesis of several diseases, mainly those affecting the gastrointestinal tract. Colon diverticulosis and its clinical manifestations (diverticular disease, DD) are among the most common digestive disorders in developed countries. In recent literature, the role of GM imbalance in the onset of the different manifestations within the clinical spectrum of DD has been highlighted. This narrative review aims to summarize and critically analyze the current knowledge on GM dysbiosis in diverticulosis and DD by comparing the available data with those found in inflammatory bowel disease (IBD). The rationale for using probiotics to rebalance dysbiosis in DD is also discussed.
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Affiliation(s)
- Antonio Tursi
- Territorial Gastroenterology Service, ASL BAT, 70031 Andria, Italy
- Department of Translational Medicine and Surgery, School of Medicine, Catholic University, 00168 Rome, Italy
| | - Valerio Papa
- Department of Translational Medicine and Surgery, School of Medicine, Catholic University, 00168 Rome, Italy
- Digestive Surgery, Fondazione Policlinico Universitario “A. Gemelli”, IRCCS, 00168 Rome, Italy
| | - Loris Riccardo Lopetuso
- Center for Diagnosis and Treatment of Digestive Diseases, CEMAD, Gastroenterology Department, Fondazione Policlinico Gemelli, IRCCS, 00168 Rome, Italy
- Department of Medicine and Ageing Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Carlo Romano Settanni
- Center for Diagnosis and Treatment of Digestive Diseases, CEMAD, Gastroenterology Department, Fondazione Policlinico Gemelli, IRCCS, 00168 Rome, Italy
| | - Antonio Gasbarrini
- Department of Translational Medicine and Surgery, School of Medicine, Catholic University, 00168 Rome, Italy
- Center for Diagnosis and Treatment of Digestive Diseases, CEMAD, Gastroenterology Department, Fondazione Policlinico Gemelli, IRCCS, 00168 Rome, Italy
| | - Alfredo Papa
- Department of Translational Medicine and Surgery, School of Medicine, Catholic University, 00168 Rome, Italy
- Center for Diagnosis and Treatment of Digestive Diseases, CEMAD, Gastroenterology Department, Fondazione Policlinico Gemelli, IRCCS, 00168 Rome, Italy
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15
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Menanteau-Ledouble S, Skov J, Lukassen MB, Rolle-Kampczyk U, Haange SB, Dalsgaard I, von Bergen M, Nielsen JL. Modulation of gut microbiota, blood metabolites, and disease resistance by dietary β-glucan in rainbow trout (Oncorhynchus mykiss). Anim Microbiome 2022; 4:58. [PMID: 36404315 PMCID: PMC9677660 DOI: 10.1186/s42523-022-00209-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 11/03/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Prebiotics are known to have a positive impact on fish health and growth rate, and β-glucans are among the most used prebiotics on the market. In this study, rainbow trout (Oncorhynchus mykiss) were treated with a β-1,3;1,6-glucan dietary supplement (at a dose of 0 g, 1 g, 10 g, and 50 g β-glucan per kg of feed). After 6 weeks, the effect of the β-glucan was evaluated by determining the changes in the microbiota and the blood serum metabolites in the fish. The impact of β-glucan on the immune system was evaluated through a challenge experiment with the bacterial fish pathogen Yersinia ruckeri. RESULTS The microbiota showed a significant change in terms of composition following β-glucan treatment, notably an increase in the relative abundance of members of the genus Aurantimicrobium, associated with a decreased abundance of the genera Carnobacterium and Deefgea. Furthermore, analysis of more than 200 metabolites revealed that the relative levels of 53 metabolites, in particular compounds related to phosphatidylcholines, were up- or downregulated in response to the dietary supplementation, this included the amino acid alanine that was significantly upregulated in the fish that had received the highest dose of β-glucan. Meanwhile, no strong effect could be detected on the resistance of the fish to the bacterial infection. CONCLUSIONS The present study illustrates the ability of β-glucans to modify the gut microbiota of fish, resulting in alteration of the metabolome and affecting fish health through the lipidome of rainbow trout.
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Affiliation(s)
- Simon Menanteau-Ledouble
- grid.5117.20000 0001 0742 471XDepartment of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg East, Denmark
| | - Jakob Skov
- grid.5254.60000 0001 0674 042XDepartment of Veterinary and Animal Sciences, University of Copenhagen, Grønnegårdsvej 15, 1870 Frederiksberg C, Denmark ,grid.5170.30000 0001 2181 8870National Institute of Aquatic Resources, Technical University of Denmark, Kemitorvet, 2800 Kongens Lyngby, Denmark
| | - Mie Bech Lukassen
- grid.5117.20000 0001 0742 471XDepartment of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg East, Denmark
| | - Ulrike Rolle-Kampczyk
- grid.7492.80000 0004 0492 3830Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research, UFZ, Permoserstr. 15, 04318 Leipzig, Germany
| | - Sven-Bastiaan Haange
- grid.7492.80000 0004 0492 3830Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research, UFZ, Permoserstr. 15, 04318 Leipzig, Germany
| | - Inger Dalsgaard
- grid.5170.30000 0001 2181 8870National Institute of Aquatic Resources, Technical University of Denmark, Kemitorvet, 2800 Kongens Lyngby, Denmark
| | - Martin von Bergen
- grid.7492.80000 0004 0492 3830Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research, UFZ, Permoserstr. 15, 04318 Leipzig, Germany ,grid.421064.50000 0004 7470 3956German Centre for Integrative Biodiversity Research, (iDiv) Halle-Jena-Leipzig, Puschstraße 4, 04103 Leipzig, Germany ,grid.9647.c0000 0004 7669 9786Institute of Biochemistry, Faculty of Life Sciences, University of Leipzig, Brüderstraße 34, 04103 Leipzig, Germany
| | - Jeppe Lund Nielsen
- grid.5117.20000 0001 0742 471XDepartment of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg East, Denmark
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16
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Ghotbi M, Kelting O, Blümel M, Tasdemir D. Gut and Gill-Associated Microbiota of the Flatfish European Plaice ( Pleuronectes platessa): Diversity, Metabolome and Bioactivity against Human and Aquaculture Pathogens. Mar Drugs 2022; 20:md20090573. [PMID: 36135762 PMCID: PMC9500656 DOI: 10.3390/md20090573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/29/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Similar to other marine holobionts, fish are colonized by complex microbial communities that promote their health and growth. Fish-associated microbiota is emerging as a promising source of bioactive metabolites. Pleuronectes platessa (European plaice, plaice), a flatfish with commercial importance, is common in the Baltic Sea. Here we used a culture-dependent survey followed by molecular identification to identify microbiota associated with the gills and the gastrointestinal tract (GIT) of P. platessa, then profiled their antimicrobial activity and metabolome. Altogether, 66 strains (59 bacteria and 7 fungi) were isolated, with Proteobacteria being the most abundant phylum. Gill-associated microbiota accounted for higher number of isolates and was dominated by the Proteobacteria (family Moraxellaceae) and Actinobacteria (family Nocardiaceae), whereas Gram-negative bacterial families Vibrionaceae and Shewanellaceae represented the largest group associated with the GIT. The EtOAc extracts of the solid and liquid media cultures of 21 bacteria and 2 fungi representing the diversity of cultivable plaice-associated microbiota was profiled for their antimicrobial activity against three fish pathogens, human bacterial pathogen panel (ESKAPE) and two human fungal pathogens. More than half of all tested microorganisms, particularly those originating from the GIT epithelium, exhibited antagonistic effect against fish pathogens (Lactococcus garvieae, Vibrio ichthyoenteri) and/or human pathogens (Enterococcus faecium, methicillin-resistant Staphylococcus aureus). Proteobacteria represented the most active isolates. Notably, the solid media extracts displayed higher activity against fish pathogens, while liquid culture extracts were more active against human pathogens. Untargeted metabolomics approach using feature-based molecular networking showed the high chemical diversity of the liquid extracts that contained undescribed clusters. This study highlights plaice-associated microbiota as a potential source of antimicrobials for the control of human and the aquaculture-associated infections. This is the first study reporting diversity, bioactivity and chemical profile of culture-dependent microbiota of plaice.
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Affiliation(s)
- Marjan Ghotbi
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany
| | - Ole Kelting
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany
| | - Martina Blümel
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany
| | - Deniz Tasdemir
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany
- Faculty of Mathematics and Natural Sciences, Kiel University, Christian-Albrechts-Platz 4, 24118 Kiel, Germany
- Correspondence: ; Tel.: +49-431-600-4430
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17
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Haque R, Das II, Sawant PB, Chadha NK, Sahoo L, Kumar R, Sundaray JK. Tenets in Microbial Endocrinology: A New Vista in Teleost Reproduction. Front Physiol 2022; 13:871045. [PMID: 36035477 PMCID: PMC9411670 DOI: 10.3389/fphys.2022.871045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/23/2022] [Indexed: 11/13/2022] Open
Abstract
Climate vulnerability and induced changes in physico-chemical properties of aquatic environment can bring impairment in metabolism, physiology and reproduction in teleost. Variation in environmental stimuli mainly acts on reproduction by interfering with steroidogenesis, gametogenesis and embryogenesis. The control on reproductive function in captivity is essential for the sustainability of aquaculture production. There are more than 3,000 teleost species across the globe having commercial importance; however, adequate quality and quantity of seed production have been the biggest bottleneck. Probiotics are widely used in aquaculture as a growth promoter, stress tolerance, pathogen inhibition, nutrient digestibility and metabolism, reproductive performance and gamete quality. As the gut microbiota exerts various effects on the intestinal milieu which influences distant organs and pathways, therefore it is considered to be a full-fledged endocrine organ. Researches on Gut-Brain-Gonad axis (GBG axis) and its importance on physiology and reproduction have already been highlighted for higher mammals; however, the study on fish physiology and reproduction is limited. While looking into the paucity of information, we have attempted to review the present status of microbiome and its interaction between the brain and gut. This review will address a process of the microbiome physiological mechanism involved in fish reproduction. The gut microbiota influences the BPG axis through a wide variety of compounds, including neuropeptides, neurotransmitter homologs and transmitters. Currently, research is being conducted to determine the precise process by which gut microbial composition influences brain function in fish. The gut-brain bidirectional interaction can influence brain biochemistry such as GABA, serotonin and tryptophan metabolites which play significant roles in CNS regulation. This review summarizes the fact, how microbes from gut, skin and other parts of the body influence fish reproduction through the Gut-Brain-Gonad axis.
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Affiliation(s)
- Ramjanul Haque
- Division of Aquaculture, ICAR-Central Institute of Fisheries Education, Mumbai, India
| | - Ipsita Iswari Das
- Fish Genetics and Biotechnology Division, ICAR-Central Institute of Freshwater Aquaculture, Bhubaneswar, India
| | | | - Narinder Kumar Chadha
- Division of Aquaculture, ICAR-Central Institute of Fisheries Education, Mumbai, India
| | - Lakshman Sahoo
- Fish Genetics and Biotechnology Division, ICAR-Central Institute of Freshwater Aquaculture, Bhubaneswar, India
| | - Rajesh Kumar
- Aquaculture Production and Environment Division, ICAR-Central Institute of Freshwater Aquaculture, Bhubaneswar, India
| | - Jitendra Kumar Sundaray
- Fish Genetics and Biotechnology Division, ICAR-Central Institute of Freshwater Aquaculture, Bhubaneswar, India
- *Correspondence: Jitendra Kumar Sundaray,
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18
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Jang WJ, Jeon MH, Lee SJ, Park SY, Lee YS, Noh DI, Hur SW, Lee S, Lee BJ, Lee JM, Kim KW, Lee EW, Hasan MT. Dietary Supplementation of Bacillus sp. PM8313 with β-glucan Modulates the Intestinal Microbiota of Red Sea Bream ( Pagrus major) to Increase Growth, Immunity, and Disease Resistance. Front Immunol 2022; 13:960554. [PMID: 35935938 PMCID: PMC9353131 DOI: 10.3389/fimmu.2022.960554] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 06/24/2022] [Indexed: 11/13/2022] Open
Abstract
A 56-day feeding trial was conducted to determine the effect of dietary supplementation with Bacillus sp. isolated from the intestines of red sea bream on the growth performance, immunity, and gut microbiome composition of red sea bream. Three diets (a control diet and two treatments) were formulated without Bacillus sp. PM8313 or β-glucan (control, CD), 1 × 108 CFU g-1 PM8313 (BSD), and 1 × 108 CFU g-1 PM8313 + 0.1% β-glucan (BGSD). At the end of the experiment, the weight, specific growth rate, feed conversion ratio, and protein efficiency ratio of the fish in the BSD and BGSD diet groups were significantly improved than those of the control group (P < 0.05). Additionally, amylase and trypsin activities were significantly higher (P < 0.05) in both groups compared to the control. Superoxide dismutase and lysozyme activity, which are serum non-specific immune responses, only increased in the BGSD group. The two treatment groups exhibited a marked difference in the intestinal microbiota composition compared to the control group. Furthermore, the treatment groups exhibited an upregulation of IL-6 and NF-κb, coupled with high survival rates when challenged with Edwardsiella tarda. Therefore, dietary supplementation with PM8313 improved the growth performance, digestive enzyme activity, non-specific immunity, and pathogen resistance of red sea bream, in addition to affecting the composition of its intestinal microflora.
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Affiliation(s)
- Won Je Jang
- Department of Biotechnology, Pukyong National University, Busan, South Korea
| | - Mi-Hyeon Jeon
- Biopharmaceutical Engineering Major, Division of Applied Bioengineering, Dong-Eui University, Busan, South Korea
| | - Su-Jeong Lee
- Biopharmaceutical Engineering Major, Division of Applied Bioengineering, Dong-Eui University, Busan, South Korea
| | - So Young Park
- Department of Biotechnology, Pukyong National University, Busan, South Korea
| | - Young-Sun Lee
- Biopharmaceutical Engineering Major, Division of Applied Bioengineering, Dong-Eui University, Busan, South Korea
| | - Da-In Noh
- Biopharmaceutical Engineering Major, Division of Applied Bioengineering, Dong-Eui University, Busan, South Korea
| | - Sang Woo Hur
- Aquafeed Research Center, National Institute of Fisheries Science, Pohang, South Korea
| | - Seunghan Lee
- Aquafeed Research Center, National Institute of Fisheries Science, Pohang, South Korea
| | - Bong-Joo Lee
- Aquafeed Research Center, National Institute of Fisheries Science, Pohang, South Korea
- Department of Smart Fisheries Resources, College of Industrial Sciences, Kongju National University, Yesan, South Korea
| | - Jong Min Lee
- Department of Biotechnology, Pukyong National University, Busan, South Korea
| | - Kang-Woong Kim
- Aquafeed Research Center, National Institute of Fisheries Science, Pohang, South Korea
| | - Eun-Woo Lee
- Biopharmaceutical Engineering Major, Division of Applied Bioengineering, Dong-Eui University, Busan, South Korea
- Core-Facility Center for Tissue Regeneration, Dong-Eui University, Busan, South Korea
| | - Md Tawheed Hasan
- Core-Facility Center for Tissue Regeneration, Dong-Eui University, Busan, South Korea
- Department of Aquaculture, Sylhet Agricultural University, Sylhet, Bangladesh
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19
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Tang S, Li Y, Huang C, Yan S, Li Y, Chen Z, Wu Z. Comparison of Gut Microbiota Diversity Between Captive and Wild Tokay Gecko (Gekko gecko). Front Microbiol 2022; 13:897923. [PMID: 35783386 PMCID: PMC9248866 DOI: 10.3389/fmicb.2022.897923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 05/11/2022] [Indexed: 11/21/2022] Open
Abstract
Captive animals and wild animals may exhibit different characteristics due to the heterogeneity of their living environments. The gut microbiota play an important role in the digestion and absorption, energy metabolism, immune regulation, and physiological health of the host. However, information about the gut microbiota of captive and wild Gekko gecko is currently limited. To determine the difference in gut microbiota community composition, diversity, and structure between captive and wild geckos, we used the Illumina miseq platform to conduct high-throughput sequencing and bioinformatics analysis of the v3–v4 hypervariable region of 16S rRNA in 54 gecko samples. Our results showed that Proteobacteria, Firmicutes, Bacteroidetes, and Actinobacteria were the dominant gut microbiota phyla of the gecko. The dominant genera comprised mainly Pseudomonas, Burkholderia-caballeronia-paraburkholderia, Ralstonia, Romboutsia, and Bacteroides. Captive geckos had significantly higher alpha diversity and potential pathogenic bacteria than wild populations. Moreover, significant differences in beta diversity of gut microbiota were observed between two populations. Functional prediction analysis showed that the relative abundance of functional pathways of wild geckos was more higher in metabolism, genetic information processing and organismal system function than those in captive geckos. Total length significantly affected gut microbial community (R2 = 0.4527, p = 0.001) and explained 10.45% of the total variation for gut microbial community variance between two groups. These results may be related to differences in diet and living environment between two populations, suggesting that the management of captive populations should mimic wild environments to the greatest extent possible to reduce the impact on their gut microbiota.
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Affiliation(s)
- Sanqi Tang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, China
| | - Yuhui Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, China
| | - Chengming Huang
- Key Laboratory of Animal Ecology and Conservation, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Shufa Yan
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, China
| | - Yongtai Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, China
| | - Zening Chen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, China
- Zening Chen,
| | - Zhengjun Wu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, China
- *Correspondence: Zhengjun Wu,
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20
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Monzón-Atienza L, Bravo J, Fernández-Montero Á, Charlie-Silva I, Montero D, Ramos-Vivas J, Galindo-Villegas J, Acosta F. Dietary supplementation of Bacillus velezensis improves Vibrio anguillarum clearance in European sea bass by activating essential innate immune mechanisms. FISH & SHELLFISH IMMUNOLOGY 2022; 124:244-253. [PMID: 35421573 DOI: 10.1016/j.fsi.2022.03.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/11/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Bacillus spp. supplementation as probiotics in cultured fish diets has a long history of safe and effective use. Specifically, B. velezensis show great promise in fine-tuning the European sea bass disease resistance against the pathogenicity caused by several members of the Vibrio family. However, the immunomodulatory mechanisms behind this response remain poorly understood. Here, to examine the inherent immune variations in sea bass, two equal groups were fed for 30 days with a steady diet, with one treatment supplemented with B. velezensis. The serum bactericidal capacity against live cells of Vibrio anguillarum strain 507 and the nitric oxide and lysozyme lytic activities were assayed. At the cellular level, the phagocytic response of peripheral blood leukocytes against inactivated Candida albicans was determined. Moreover, head-kidney (HK) total leukocytes were isolated from previously in vivo treated fish with LPS of V. anguillarum strain 507. Mechanistically, the expression of some essential proinflammatory genes (interleukin-1 (il1b), tumor necrosis factor-alpha (tnfa), and cyclooxygenase 2 (cox2) and the sea bass specific antimicrobial peptide (AMP) dicentracin (dic) expressions were assessed. Surprisingly, the probiotic supplementation significantly increased all humoral lytic and cellular activities assayed in the treated sea bass. In addition, time-dependent differences were observed between the control and probiotic treated groups for all the HK genes markers subjected to the sublethal LPS dose. Although the il1b was the fastest responding gene to a significant level at 48 h post-injection (hpi), all the other genes followed 72 h in the probiotic supplemented group. Finally, an in vivo bacteria challenge against live V. anguillarum was conducted. The probiotic fed fish observed a significantly higher survival. Overall, our results provide clear vertical evidence on the beneficial immune effects of B. velezensis and unveil some fundamental immune mechanisms behind its application as a probiotic agent in intensively cultured European sea bass.
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Affiliation(s)
- Luis Monzón-Atienza
- Grupo de Investigación en Acuicultura (GIA), Instituto Ecoaqua, Universidad de Las Palmas de Gran Canaria, Spain
| | - Jimena Bravo
- Grupo de Investigación en Acuicultura (GIA), Instituto Ecoaqua, Universidad de Las Palmas de Gran Canaria, Spain
| | - Álvaro Fernández-Montero
- Grupo de Investigación en Acuicultura (GIA), Instituto Ecoaqua, Universidad de Las Palmas de Gran Canaria, Spain
| | - Ives Charlie-Silva
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, SP, Brazil
| | - Daniel Montero
- Grupo de Investigación en Acuicultura (GIA), Instituto Ecoaqua, Universidad de Las Palmas de Gran Canaria, Spain
| | - José Ramos-Vivas
- Grupo de Investigación en Acuicultura (GIA), Instituto Ecoaqua, Universidad de Las Palmas de Gran Canaria, Spain
| | | | - Félix Acosta
- Grupo de Investigación en Acuicultura (GIA), Instituto Ecoaqua, Universidad de Las Palmas de Gran Canaria, Spain
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21
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Dempsey E, Corr SC. Lactobacillus spp. for Gastrointestinal Health: Current and Future Perspectives. Front Immunol 2022; 13:840245. [PMID: 35464397 PMCID: PMC9019120 DOI: 10.3389/fimmu.2022.840245] [Citation(s) in RCA: 134] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/15/2022] [Indexed: 11/13/2022] Open
Abstract
In recent decades, probiotic bacteria have become increasingly popular as a result of mounting scientific evidence to indicate their beneficial role in modulating human health. Although there is strong evidence associating various Lactobacillus probiotics to various health benefits, further research is needed, in particular to determine the various mechanisms by which probiotics may exert these effects and indeed to gauge inter-individual value one can expect from consuming these products. One must take into consideration the differences in individual and combination strains, and conditions which create difficulty in making direct comparisons. The aim of this paper is to review the current understanding of the means by which Lactobacillus species stand to benefit our gastrointestinal health.
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Affiliation(s)
- Elaine Dempsey
- Trinity Biomedical Science Institute, School of Biochemistry and Immunology, Trinity College, Dublin, Ireland.,Department of Microbiology, Moyne Institute of Preventive Medicine, School of Genetics and Microbiology, Trinity College, Dublin, Ireland
| | - Sinéad C Corr
- Department of Microbiology, Moyne Institute of Preventive Medicine, School of Genetics and Microbiology, Trinity College, Dublin, Ireland.,APC Microbiome Ireland, University College Cork, Cork, Ireland
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22
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Chen Z, Chen J, Liu Y, Zhang J, Chen X, Qu Y. Comparative study on gut microbiota in three Anura frogs from a mountain stream. Ecol Evol 2022; 12:e8854. [PMID: 35475186 PMCID: PMC9021931 DOI: 10.1002/ece3.8854] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/29/2022] [Accepted: 04/05/2022] [Indexed: 12/25/2022] Open
Abstract
Composition and diversity in gut microbiota are impacted by a wide variety of factors. The similarity of gut microbiota in related or sympatric species has been gaining recent traction. Here, 16S rRNA gene sequencing technology was employed to study the gut microbiota of three sympatric frog species, namely Odorrana tormota, O. graminea, and Amolops wuyiensis. In these three frog species, the most abundant phylum was Proteobacteria, followed by Bacteroidetes, Verrucomicrobia, and Firmicutes. The most abundant family was Burkholderiaceae in three species. The most dominant genera were Burkholderia, Caballeronia, and Paraburkholderia with the highest relative abundance in O. tormota, O. graminea, and A. wuyiensis, respectively. No differences were observed in alpha diversity indexes among the three frog species. However, bacterial similarity of gut microbiota was significantly different between O. tormota and A. wuyiensis and between O. graminea and A. wuyiensis. Metabolism‐related gene function was predominantly enriched in the gut microbiota of the three evaluated frog species. From these findings, that the relative abundance of the gut microbiota and predicted gene functions differed in three species, we conclude that there were significant differences in the gut microbiota of the three species. Similar alpha diversity and interspecific bacterial similarity in the gut might be related to bacterial transmission among the three Anura frogs evaluated in this study.
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Affiliation(s)
- Zhuo Chen
- College of Life Sciences Henan Normal University Xinxiang Henan China
- The Observation and Research Field Station of Taihang Mountain Forest Ecosystems of Henan Province Xinxiang Henan China
| | - Jun‐Qiong Chen
- Jiangsu Key Laboratory for Biodiversity and Biotechnology College of Life Sciences Nanjing Normal University Nanjing Jiangsu China
| | - Yao Liu
- College of Life Sciences Henan Normal University Xinxiang Henan China
- The Observation and Research Field Station of Taihang Mountain Forest Ecosystems of Henan Province Xinxiang Henan China
| | - Jie Zhang
- College of Fisheries Henan Normal University Xinxiang Henan China
| | - Xiao‐Hong Chen
- College of Life Sciences Henan Normal University Xinxiang Henan China
- The Observation and Research Field Station of Taihang Mountain Forest Ecosystems of Henan Province Xinxiang Henan China
- Jiangsu Key Laboratory for Biodiversity and Biotechnology College of Life Sciences Nanjing Normal University Nanjing Jiangsu China
| | - Yan‐Fu Qu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology College of Life Sciences Nanjing Normal University Nanjing Jiangsu China
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23
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Alesci A, Pergolizzi S, Fumia A, Calabrò C, Lo Cascio P, Lauriano ER. Mast cells in goldfish (
Carassius auratus
) gut: Immunohistochemical characterization. ACTA ZOOL-STOCKHOLM 2022. [DOI: 10.1111/azo.12417] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Alessio Alesci
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Simona Pergolizzi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Angelo Fumia
- Department of Clinical and Experimental Medicine University of Messina Messina Italy
| | - Concetta Calabrò
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Patrizia Lo Cascio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Eugenia Rita Lauriano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
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24
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Petit J, de Bruijn I, Goldman MRG, van den Brink E, Pellikaan WF, Forlenza M, Wiegertjes GF. β-Glucan-Induced Immuno-Modulation: A Role for the Intestinal Microbiota and Short-Chain Fatty Acids in Common Carp. Front Immunol 2022; 12:761820. [PMID: 35069532 PMCID: PMC8770818 DOI: 10.3389/fimmu.2021.761820] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 12/08/2021] [Indexed: 12/20/2022] Open
Abstract
Dietary supplementation of fish with β-glucans has been commonly associated with immunomodulation and generally accepted as beneficial for fish health. However, to date the exact mechanisms of immunomodulation by β-glucan supplementation in fish have remained elusive. In mammals, a clear relation between high-fibre diets, such as those including β-glucans, and diet-induced immunomodulation via intestinal microbiota and associated metabolites has been observed. In this study, first we describe by 16S rRNA sequencing the active naive microbiota of common carp intestine. Based on the abundance of the genus Bacteroides, well known for their capacity to degrade and ferment carbohydrates, we hypothesize that common carp intestinal microbiota could ferment dietary β-glucans. Indeed, two different β-glucan preparations (curdlan and MacroGard®) were both fermented in vitro, albeit with distinct fermentation dynamics and distinct production of short-chain fatty acids (SCFA). Second, we describe the potential immunomodulatory effects of the three dominant SCFAs (acetate, butyrate, and propionate) on head kidney leukocytes, showing effects on both nitric oxide production and expression of several cytokines (il-1b, il-6, tnfα, and il-10) in vitro. Interestingly, we also observed a regulation of expression of several gpr40L genes, which were recently described as putative SCFA receptors. Third, we describe how a single in vivo oral gavage of carp with MacroGard® modulated simultaneously, the expression of several pro-inflammatory genes (il-1b, il-6, tnfα), type I IFN-associated genes (tlr3.1, mx3), and three specific gpr40L genes. The in vivo observations provide indirect support to our in vitro data and the possible role of SCFAs in β-glucan-induced immunomodulation. We discuss how β-glucan-induced immunomodulatory effects can be explained, at least in part, by fermentation of MacroGard® by specific bacteria, part of the naive microbiota of common carp intestine, and how a subsequent production of SFCAs could possibly explain immunomodulation by β-glucan via SCFA receptors present on leukocytes.
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Affiliation(s)
- Jules Petit
- Aquaculture and Fisheries Group, Department of Animal Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Irene de Bruijn
- Department of Microbial Ecology, Netherlands Institute of Ecology-The Royal Netherlands Academy of Arts and Sciences, (NIOO-KNAW), Wageningen, Netherlands
| | - Mark R G Goldman
- Aquaculture and Fisheries Group, Department of Animal Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Erik van den Brink
- Aquaculture and Fisheries Group, Department of Animal Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Wilbert F Pellikaan
- Animal Nutrition Group, Department of Animal Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Maria Forlenza
- Aquaculture and Fisheries Group, Department of Animal Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Geert F Wiegertjes
- Aquaculture and Fisheries Group, Department of Animal Sciences, Wageningen University & Research, Wageningen, Netherlands
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25
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Sultana S, Khan MN, Hossain MS, Dai J, Rahman MS, Salimullah M. Community Structure and Functional Annotations of the Skin Microbiome in Healthy and Diseased Catfish, Heteropneustes fossilis. Front Microbiol 2022; 13:856014. [PMID: 35295300 PMCID: PMC8918984 DOI: 10.3389/fmicb.2022.856014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 02/08/2022] [Indexed: 12/03/2022] Open
Abstract
The skin mucosa of fish serves as a primary barrier against pathogens. In lesion sites in diseased fish, the mucosal barrier is expected to be compromised, with a substantial presence of potential pathogens. An understanding of the skin microbiome and its functional repertoire would provide important insights into host-microbe interactions, which has important implications for prophylactic measures in aquaculture. This study revealed the skin microbiomes and their functional annotations from healthy and diseased stinging catfish (Heteropneustes fossilis) based on 16S rRNA metagenomics. The OTUs consisted of four major phyla, Proteobacteria, Bacteroidota, Actinobacteriota and Firmicutes. Among members of the predominant phyla, Proteobacteria were rich in healthy fishes, but Bacteroidota and Firmicutes were significantly differentiated in healthy and diseased fish. The diversified microbiome was high in the skin of healthy fishes and did not significantly differ from that of the diseased groups. At the genus level, Pseudomonas showed the highest abundance in healthy fish but was nearly absent in diseased fish, whereas Flavobacterium showed the highest abundance in diseased fish. Linear discriminant analysis identified two phyla (Bacteroidota, Firmicutes) and two genera (Flavobacterium, Allorhizobium) that were consistently identified in diseased fishes. Functional prediction analysis specified that the genes related to physiological functions such as metabolism, immune and digestive systems and environmental adaptations could be highly expressed in diseased fishes. The present study indicates that the compositions, richness and functions of the bacterial community could influence the health status of cultured stinging catfish. Aquaculture-associated pathogenic bacteria may be identified, and preventive measures can be taken for the surveillance of fish health.
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Affiliation(s)
- Shirin Sultana
- Aquatic Animal Health Group, Department of Fisheries, University of Dhaka, Dhaka, Bangladesh
- Fisheries Biotechnology Division, National Institute of Biotechnology, Dhaka, Bangladesh
| | - Md. Nasir Khan
- Fisheries Biotechnology Division, National Institute of Biotechnology, Dhaka, Bangladesh
| | | | - Jingcheng Dai
- School of Life Sciences and Technology, Wuhan Polytechnique University, Wuhan, China
| | - Mohammad Shamsur Rahman
- Aquatic Animal Health Group, Department of Fisheries, University of Dhaka, Dhaka, Bangladesh
| | - Md. Salimullah
- Molecular Biotechnology Division, National Institute of Biotechnology, Dhaka, Bangladesh
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26
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Du Y, Chen JQ, Liu Q, Fu JC, Lin CX, Lin LH, Li H, Qu YF, Ji X. Dietary Correlates of Oral and Gut Microbiota in the Water Monitor Lizard, Varanus salvator (Laurenti, 1768). Front Microbiol 2022; 12:771527. [PMID: 35069477 PMCID: PMC8770915 DOI: 10.3389/fmicb.2021.771527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/30/2021] [Indexed: 12/11/2022] Open
Abstract
Numerous studies have demonstrated that food shapes the structure and composition of the host’s oral and gut microbiota. The disorder of oral and gut microbiota may trigger various host diseases. Here, we collected oral and gut samples from wild water monitor lizards (Varanus salvator) and their captive conspecifics fed with bullfrogs, eggs, and depilated chicken, aiming to examine dietary correlates of oral and gut microbiota. We used the 16S rRNA gene sequencing technology to analyze the composition of the microbiota. Proteobacteria and Bacteroidota were the dominant phyla in the oral microbiota, and so were in the gut microbiota. The alpha diversity of microbiota was significantly higher in the gut than in the oral cavity, and the alpha diversity of oral microbiota was higher in captive lizards than in wild conspecifics. Comparing the relative abundance of oral and gut bacteria and their gene functions, differences among different animal groups presumably resulted from human contact in artificial breeding environments and complex food processing. Differences in gene function might be related to the absolute number and/or the taxonomic abundance of oral and gut microorganisms in the wild and the water environment. This study provides not only basic information about the oral and gut microbiota of captive and wild water monitor lizards, but also an inference that feeding on frogs and aquatic products and reducing human exposure help water monitor lizards maintain a microbiota similar to that in the wild environment.
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Affiliation(s)
- Yu Du
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China.,Hainan Key Laboratory of Herpetological Research, College of Fisheries and Life Science, Hainan Tropical Ocean University, Sanya, China.,MOE Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources, Hainan Tropical Ocean University, Sanya, China
| | - Jun-Qiong Chen
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Qian Liu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Jian-Chao Fu
- Hainan Key Laboratory of Herpetological Research, College of Fisheries and Life Science, Hainan Tropical Ocean University, Sanya, China.,MOE Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources, Hainan Tropical Ocean University, Sanya, China
| | - Chi-Xian Lin
- Hainan Key Laboratory of Herpetological Research, College of Fisheries and Life Science, Hainan Tropical Ocean University, Sanya, China.,MOE Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources, Hainan Tropical Ocean University, Sanya, China
| | - Long-Hui Lin
- Hangzhou Key Laboratory for Ecosystem Protection and Restoration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Hong Li
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Yan-Fu Qu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Xiang Ji
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China.,Hainan Key Laboratory of Herpetological Research, College of Fisheries and Life Science, Hainan Tropical Ocean University, Sanya, China.,Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
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27
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Castejón P, Cabas I, Gómez V, Chaves-Pozo E, Cerezo-Ortega I, Moriñigo MÁ, Martínez-Manzanares E, Galindo-Villegas J, García-Ayala A. Vaccination of Gilthead Seabream After Continuous Xenoestrogen Oral Exposure Enhances the Gut Endobolome and Immune Status via GPER1. Front Immunol 2021; 12:742827. [PMID: 34721409 PMCID: PMC8551918 DOI: 10.3389/fimmu.2021.742827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/15/2021] [Indexed: 12/12/2022] Open
Abstract
In fish culture settings, the exogenous input of steroids is a matter of concern. Recently, we unveiled that in the gilthead seabream (Sparus aurata), the G protein-coupled estrogen receptor agonist G-1 (G1) and the endocrine disruptor 17α-ethinylestradiol (EE2) are potent modulators in polyreactive antibody production. However, the integral role of the microbiota upon immunity and antibody processing in response to the effect of EE2 remains largely unexplored. Here, juvenile seabreams continuously exposed for 84 days to oral G1 or EE2 mixed in the fish food were intraperitoneally (i.p.) immune primed on day 42 with the model antigen keyhole limpet hemocyanin (KLH). A critical panel of systemic and mucosal immune markers, serum VTG, and humoral, enzymatic, and bacteriolytic activities were recorded and correlated with gut bacterial metagenomic analysis 1 day post-priming (dpp). Besides, at 15 dpp, animals received a boost to investigate the possible generation of specific anti-KLH antibodies at the systemic and mucosal interphases by the end of the trial. On day 43, EE2 but not G1 induced a significant shift in the serum VTG level of naive fish. Simultaneously, significant changes in some immune enzymatic activities in the serum and gut mucus of the EE2-treated group were recorded. In comparison, the vaccine priming immunization resulted in an attenuated profile of most enzymatic activities in the same group. The gut genes qPCR analysis exhibited a related pattern, only emphasized by a significant shift in the EE2 group's il1b expression. The gut bacterial microbiome status underwent 16S rRNA dynamic changes in alpha diversity indices, only with the exposure to oral G1, supporting functional alterations on cellular processes, signaling, and lipid metabolism in the microbiota. By the same token, the immunization elevated the relative abundance of Fusobacteria only in the control group, while this phylum was depleted in both the treated groups. Remarkably, the immunization also promoted changes in the bacterial class Betaproteobacteria and the estrogen-associated genus Novosphingobium. Furthermore, systemic and mucosal KLH-specific immunoglobulin (Ig)M and IgT levels in the fully vaccinated fish showed only slight changes 84 days post-estrogenic oral administration. In summary, our results highlight the intrinsic relationship among estrogens, their associated receptors, and immunization in the ubiquitous fish immune regulation and the subtle but significant crosstalk with the gut endobolome.
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Affiliation(s)
- Pablo Castejón
- Department of Cell Biology and Histology, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Instituto Murciano de Investigacion Biosanitaria (IMIB), Centro de Investigacion Biomedica en Red Enfermedades Raras (CIBERER), Murcia, Spain
| | - Isabel Cabas
- Department of Cell Biology and Histology, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Instituto Murciano de Investigacion Biosanitaria (IMIB), Centro de Investigacion Biomedica en Red Enfermedades Raras (CIBERER), Murcia, Spain
| | - Victoria Gómez
- Department of Cell Biology and Histology, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Instituto Murciano de Investigacion Biosanitaria (IMIB), Centro de Investigacion Biomedica en Red Enfermedades Raras (CIBERER), Murcia, Spain
| | - Elena Chaves-Pozo
- Aquaculture Department, Oceanographic Center of Murcia, Spanish Institute of Oceanography (IEO-CSIC), Murcia, Spain
| | - Isabel Cerezo-Ortega
- Department of Microbiology, Faculty of Sciences, University of Malaga, Málaga, Spain
| | - Miguel Ángel Moriñigo
- Department of Microbiology, Faculty of Sciences, University of Malaga, Málaga, Spain
| | | | | | - Alfonsa García-Ayala
- Department of Cell Biology and Histology, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Instituto Murciano de Investigacion Biosanitaria (IMIB), Centro de Investigacion Biomedica en Red Enfermedades Raras (CIBERER), Murcia, Spain
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28
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Neonatal Piglets Are Protected from Clostridioides difficile Infection by Age-Dependent Increase in Intestinal Microbial Diversity. Microbiol Spectr 2021; 9:e0124321. [PMID: 34550001 PMCID: PMC8557904 DOI: 10.1128/spectrum.01243-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
While Clostridioides difficile is recognized as an important human pathogen, it is also a significant cause of gastroenteritis and associated diarrhea in neonatal pigs. Since clinical disease is rarely diagnosed in piglets older than 1 week of age, it is hypothesized that natural resistance is associated with the increased complexity of the intestinal microbiota as the animals age. To test this, piglets were challenged with C. difficile (ribotype 078/toxinotype V) at times ranging from 2 to 14 days of age, and the severity of disease and microbial diversity of the cecal microbiota were assessed. Half of the piglets that were challenged with C. difficile at 2 and 4 days of age developed clinical signs of disease. The incidence of disease decreased rapidly as the piglets aged, to a point where none of the animals challenged after 10 days of age showed clinical signs. The cecal microbial community compositions of the piglets also clustered by age, with those of animals 2 to 4 days old showing closer relationships to one another than to those of older piglets (8 to 14 days). This clustering occurred across litters from 4 different sows, providing further evidence that the resistance to C. difficile disease in piglets greater than 1 week old is directly related to the diversity and complexity of the intestinal microbiota. IMPORTANCE C. difficile is an important bacterial pathogen that is the most common cause of infections associated with health care in the United States. It also causes significant morbidity and mortality in neonatal pigs, and currently there are no preventative treatments available to livestock producers. This study determined the age-related susceptibility of piglets to C. difficile over the first 2 weeks of life, along with documenting the natural age-related changes that occurred in the intestinal microbiota over the same time period in a controlled environment. We observed that the populations of intestinal bacteria within individual animals of the same age, regardless of litter, showed the highest degree of similarity. Identifying bacterial species associated with the acquisition of natural resistance observed in older pigs could lead to the development of new strategies to prevent and or treat disease caused by C. difficile infection.
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Ramos-Vivas J, Superio J, Galindo-Villegas J, Acosta F. Phage Therapy as a Focused Management Strategy in Aquaculture. Int J Mol Sci 2021; 22:10436. [PMID: 34638776 PMCID: PMC8508683 DOI: 10.3390/ijms221910436] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 12/12/2022] Open
Abstract
Therapeutic bacteriophages, commonly called as phages, are a promising potential alternative to antibiotics in the management of bacterial infections of a wide range of organisms including cultured fish. Their natural immunogenicity often induces the modulation of a variated collection of immune responses within several types of immunocytes while promoting specific mechanisms of bacterial clearance. However, to achieve standardized treatments at the practical level and avoid possible side effects in cultivated fish, several improvements in the understanding of their biology and the associated genomes are required. Interestingly, a particular feature with therapeutic potential among all phages is the production of lytic enzymes. The use of such enzymes against human and livestock pathogens has already provided in vitro and in vivo promissory results. So far, the best-understood phages utilized to fight against either Gram-negative or Gram-positive bacterial species in fish culture are mainly restricted to the Myoviridae and Podoviridae, and the Siphoviridae, respectively. However, the current functional use of phages against bacterial pathogens of cultured fish is still in its infancy. Based on the available data, in this review, we summarize the current knowledge about phage, identify gaps, and provide insights into the possible bacterial control strategies they might represent for managing aquaculture-related bacterial diseases.
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Affiliation(s)
- José Ramos-Vivas
- Grupo de Investigación en Acuicultura, Universidad de Las Palmas de Gran Canaria, 35214 Las Palmas de Gran Canaria, Spain; (J.R.-V.); (F.A.)
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, 39011 Santander, Spain
- Department of Project Management, Universidad Internacional Iberoamericana, Campeche 24560, Mexico
| | - Joshua Superio
- Faculty of Biosciences and Aquaculture, Nord University, 8049 Bodø, Norway;
| | | | - Félix Acosta
- Grupo de Investigación en Acuicultura, Universidad de Las Palmas de Gran Canaria, 35214 Las Palmas de Gran Canaria, Spain; (J.R.-V.); (F.A.)
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Li Y, Wang S, Hu Y, Cheng J, Cheng X, Cheng P, Cui Z. Dietary bile acid supplementation reveals beneficial effects on intestinal healthy status of tongue sole (Cynoglossus semiliaevis). FISH & SHELLFISH IMMUNOLOGY 2021; 116:52-60. [PMID: 34216786 DOI: 10.1016/j.fsi.2021.06.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/27/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
The aim of this study was to investigate the effects of dietary bile acids (BAs) on intestinal healthy status of tongue sole in terms of immunity, antioxidant status, digestive ability, mucosal barrier-related genes expression and microbiota. Three experimental diets were prepared with BA levels at 0 mg/kg (CT), 300 mg/kg (BA1) and 900 mg/kg (BA2) in a commercial basal diet. Each diet was fed to three replicates with 120 fish (10.87 ± 0.32 g) in each tank. After an 8-week feeding trial, growth parameters were significantly enhanced in both BAs supplementary groups (P < 0.05), and compared with CT group, survival rate in BA2 group was significantly improved (P < 0.05). Intestinal lysozyme activity and contents of immunoglobulin M and complement 3 were significantly increased in both BAs supplementary groups (P < 0.05), suggesting an enhancement effect on the non-specific immune response. BAs inclusion also significantly improved intestinal antioxidant capabilities by increasing antioxidase activities and decreasing malondialdehyde levels. In addition, compared with CT group, intestinal digestive ability was substantially enhanced as indicated by the significantly increased lipase activity in BA2 group (P < 0.05) and significantly increased amylase activity in BA1 and BA2 groups (P < 0.05). Coincidentally, BAs inclusion significantly upregulated the relative expression of intestinal mucosal barrier-related genes (P < 0.05). Further, dietary BAs distinctly remodeled intestinal microbiota by decreased the abundance of some potential pathogenic bacteria. In conclusion, dietary BAs supplementation is an effective way to improve the intestinal healthy status of tongue sole.
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Affiliation(s)
- Yangzhen Li
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Shengpeng Wang
- Dezhou Key Laboratory for Applied Bile Acid Research, Shandong Longchang Animal Health Product CO., Ltd., Dezhou 251100, China.
| | - Yuanri Hu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Jiayu Cheng
- Engineering and Technology Center for Flatfish Aquaculture of Tangshan, Tangshan Weizhuo Aquaculture Co., Ltd., Tangshan 063202, China
| | - Xiangming Cheng
- Engineering and Technology Center for Flatfish Aquaculture of Tangshan, Tangshan Weizhuo Aquaculture Co., Ltd., Tangshan 063202, China
| | - Peng Cheng
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Zhongkai Cui
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
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Piccioni A, Franza L, Vaccaro V, Saviano A, Zanza C, Candelli M, Covino M, Franceschi F, Ojetti V. Microbiota and Probiotics: The Role of Limosilactobacillus Reuteri in Diverticulitis. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:medicina57080802. [PMID: 34441008 PMCID: PMC8398895 DOI: 10.3390/medicina57080802] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/29/2021] [Accepted: 08/03/2021] [Indexed: 02/05/2023]
Abstract
The microbiota is the set of commensal microorganisms, residing in the organism, helping proper functioning of organs and systems. The role that the microbiota plays in maintaining the health of vertebrates is widely accepted, particularly in the gastrointestinal system, where it is fundamental for immunity, development, and conversion of nutrients. Dysbiosis is an alteration of the microbiota which refers to a disturbed balance, which can cause a number of pathologies. Probiotics have proven to be effective in modulating the microbiota of the gastrointestinal system and, therefore, in promoting the health of the individual. In particular, Lactobacilli are a group of Gram-positive bacteria, which are able to produce lactic acid through glucose metabolism. They are present in different microenvironments, ranging from the vagina, to the mouth, to different tracts of the small intestine. In the present review, we will discuss the use of Limosilactobacillus in human health in general and more specifically in diverticulitis. In particular we analyze the role of Limosilactobacillus reuteri and its anti-inflammatory action. For this review, articles were identified using the electronic PubMed database through a comprehensive search, conducted by combining key terms such as "diverticulitis", "Limosilactobacillus reuteri", "human health and disease", "probiotics". We selected all the articles published in the last 10 years and screened 1017 papers. Articles referenced in the screened papers were evaluated if considered interesting for our topic. Probiotics have proven to be effective in modulating the microbiota of the gastrointestinal system and, therefore, in promoting the health of the individual. The importance of probiotics in treating diverticular disease and acute diverticulitis can be further understood if taking into consideration some pathophysiological aspects, associated to the microbiota. L. reuteri plays an important role in human health and disease. The effectiveness of L. reuteri in stimulating a correct bowl motility partly explains its effectiveness in treating diverticulitis. The most important action of L. reuteri is probably its immunomodulating activity. Levels of IL-6, IL-8, and Tumor necrosis factor (TNF-alpha) are reduced after supplementation with different strands of Lactobacilli, while T-regulatory cells increase in number and activity. Anyway, new mechanisms of action of probiotics come to light from the many investigations currently taking place in numerous centres around the world and to improve how exactly probiotic administration could make the difference in the management of diverticular disease and acute diverticulitis.
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Affiliation(s)
- Andrea Piccioni
- Emergency Department, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Roma, Italy; (M.C.); (M.C.); (F.F.)
- Correspondence:
| | - Laura Franza
- Emergency Department, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (L.F.); (V.V.); (A.S.); (C.Z.); (V.O.)
| | - Vanessa Vaccaro
- Emergency Department, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (L.F.); (V.V.); (A.S.); (C.Z.); (V.O.)
| | - Angela Saviano
- Emergency Department, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (L.F.); (V.V.); (A.S.); (C.Z.); (V.O.)
| | - Christian Zanza
- Emergency Department, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (L.F.); (V.V.); (A.S.); (C.Z.); (V.O.)
| | - Marcello Candelli
- Emergency Department, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Roma, Italy; (M.C.); (M.C.); (F.F.)
| | - Marcello Covino
- Emergency Department, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Roma, Italy; (M.C.); (M.C.); (F.F.)
| | - Francesco Franceschi
- Emergency Department, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Roma, Italy; (M.C.); (M.C.); (F.F.)
- Emergency Department, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (L.F.); (V.V.); (A.S.); (C.Z.); (V.O.)
| | - Veronica Ojetti
- Emergency Department, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (L.F.); (V.V.); (A.S.); (C.Z.); (V.O.)
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Belkina TV, Averina OV, Savenkova EV, Danilenko VN. Human Intestinal Microbiome and the Immune System: The Role of Probiotics in Shaping an Immune System Unsusceptible to COVID-19 Infection. BIOLOGY BULLETIN REVIEWS 2021. [PMCID: PMC8365270 DOI: 10.1134/s2079086421040034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- T. V. Belkina
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - O. V. Averina
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - E. V. Savenkova
- International Institute for Strategic Development of Sectoral Economics, Peoples’ Friendship University of Russia (RUDN), Moscow, Russia
| | - V. N. Danilenko
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
- International Institute for Strategic Development of Sectoral Economics, Peoples’ Friendship University of Russia (RUDN), Moscow, Russia
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Aprile F, Bruno G, Palma R, Mascellino MT, Panetta C, Scalese G, Oliva A, Severi C, Pontone S. Microbiota Alterations in Precancerous Colon Lesions: A Systematic Review. Cancers (Basel) 2021; 13:cancers13123061. [PMID: 34205378 PMCID: PMC8234190 DOI: 10.3390/cancers13123061] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/09/2021] [Accepted: 06/14/2021] [Indexed: 12/22/2022] Open
Abstract
Simple Summary Even with recent advances, gut microbiota is still one of the most demanding challenges that research needs to handle. In particular, given its deep impact on gastrointestinal health, microbiota could explain the development and progression of certain diseases. Moreover, it could be used as a potential predictive biomarker. Given this, the relationship between intestinal microbiota and colorectal adenoma, considered a premalignant lesion leading to carcinoma, has been deeply evaluated. This review highlights the historical and novel data on microbiota characteristics in adenoma patients to provide an updated summary of current knowledge and its limits. Abstract Gut microbiota plays an important role in human health. It may promote carcinogenesis and is related to several diseases of the gastrointestinal tract. This study of microbial dysbiosis in the etiology of colorectal adenoma aimed to investigate the possible causative role of microbiota in the adenoma–carcinoma sequence and its possible preventive role. A systematic, PRISMA-guided review was performed. The PubMed database was searched using “adenoma microbiota” and selecting original articles between January 2010 and May 2020 independently screened. A higher prevalence of Proteobacteria, Fusobacteria, and Bacteroidetes phyla was observed in the fecal luminal and mucosa-associated microbiota of patients with adenoma. However, other studies provided evidence of depletion of Clostridium, Faecalibacterium, Bacteroides and Romboutsia. Results on the relationship between adenoma endoscopic resection and microbiota were inconsistent. In conclusion, none of the analyzed studies developed a predictive model that could differentiate adenoma from non-adenoma patients, and therefore, to prevent cancer progression. The impact of adenoma’s endoscopic resection on microbiota was investigated, but the results were inconclusive. Further research in the field is required.
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Affiliation(s)
- Francesca Aprile
- Department of Translational and Precision Medicine, Gastroenterology Unit, Sapienza University of Rome, 00161 Rome, Italy; (F.A.); (G.B.); (G.S.); (C.S.)
| | - Giovanni Bruno
- Department of Translational and Precision Medicine, Gastroenterology Unit, Sapienza University of Rome, 00161 Rome, Italy; (F.A.); (G.B.); (G.S.); (C.S.)
| | - Rossella Palma
- Department of Surgical Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.P.); (C.P.)
| | - Maria Teresa Mascellino
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00161 Rome, Italy; (M.T.M.); (A.O.)
| | - Cristina Panetta
- Department of Surgical Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.P.); (C.P.)
| | - Giulia Scalese
- Department of Translational and Precision Medicine, Gastroenterology Unit, Sapienza University of Rome, 00161 Rome, Italy; (F.A.); (G.B.); (G.S.); (C.S.)
| | - Alessandra Oliva
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00161 Rome, Italy; (M.T.M.); (A.O.)
| | - Carola Severi
- Department of Translational and Precision Medicine, Gastroenterology Unit, Sapienza University of Rome, 00161 Rome, Italy; (F.A.); (G.B.); (G.S.); (C.S.)
| | - Stefano Pontone
- Department of Surgical Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.P.); (C.P.)
- Correspondence: ; Tel.: +39-06-49975568
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Firmino JP, Galindo-Villegas J, Reyes-López FE, Gisbert E. Phytogenic Bioactive Compounds Shape Fish Mucosal Immunity. Front Immunol 2021; 12:695973. [PMID: 34220858 PMCID: PMC8252966 DOI: 10.3389/fimmu.2021.695973] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/31/2021] [Indexed: 12/11/2022] Open
Abstract
Aquaculture growth will unavoidably involve the implementation of innovative and sustainable production strategies, being functional feeds among the most promising ones. A wide spectrum of phytogenics, particularly those containing terpenes and organosulfur compounds, are increasingly studied in aquafeeds, due to their growth promoting, antimicrobial, immunostimulant, antioxidant, anti-inflammatory and sedative properties. This trend relies on the importance of the mucosal barrier in the fish defense. Establishing the phytogenics' mode of action in mucosal tissues is of importance for further use and safe administration. Although the impact of phytogenics upon fish mucosal immunity has been extensively approached, most of the studies fail in addressing the mechanisms underlying their pharmacological effects. Unstandardized testing as an extended practice also questions the reproducibility and safety of such studies, limiting the use of phytogenics at commercial scale. The information presented herein provides insight on the fish mucosal immune responses to phytogenics, suggesting their mode of action, and ultimately encouraging the practice of reliable and reproducible research for novel feed additives for aquafeeds. For proper screening, characterization and optimization of their mode of action, we encourage the evaluation of purified compounds using in vitro systems before moving forward to in vivo trials. The formulation of additives with combinations of compounds previously characterized is recommended to avoid bacterial resistance. To improve the delivery of phytogenics and overcome limitations associated to compounds volatility and susceptibility to degradation, the use of encapsulation is advisable. Besides, newer approaches and dedicated methodologies are needed to elucidate the phytogenics pharmacokinetics and mode of action in depth.
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Affiliation(s)
- Joana P. Firmino
- Aquaculture Program, Institut de Recerca i Tecnologia Agroalimentàries (IRTA) Centre de Sant Carles de la Ràpita (IRTA-SCR), Sant Carles de la Ràpita, Spain
- PhD Program in Aquaculture, Universitat Autònoma de Barcelona, Bellaterra, Spain
- R&D Technical Department, TECNOVIT – FARMFAES, S.L., Alforja, Spain
| | | | - Felipe E. Reyes-López
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Bellaterra, Spain
- Facultad de Medicina Veterinaria y Agronomía, Universidad de Las Américas, Santiago, Chile
- Consorcio Tecnológico de Sanidad Acuícola, Ictio Biotechnologies S.A., Santiago, Chile
| | - Enric Gisbert
- Aquaculture Program, Institut de Recerca i Tecnologia Agroalimentàries (IRTA) Centre de Sant Carles de la Ràpita (IRTA-SCR), Sant Carles de la Ràpita, Spain
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Probiotics in Fish Nutrition—Long-Standing Household Remedy or Native Nutraceuticals? WATER 2021. [DOI: 10.3390/w13101348] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Over the last decades, aquaculture production increased rapidly. The future development of the industry highly relies on the sustainable utilization of natural resources. The need for improving disease resistance, growth performance, food conversion, and product safety for human consumption has stimulated the application of probiotics in aquaculture. Probiotics increase growth and feed conversion, improve health status, raise disease resistance, decrease stress susceptibility, and improve general vigor. Currently, most probiotics still originate from terrestrial sources rather than fish. However, host-associated (autochthonous) probiotics are likely more persistent in the gastrointestinal tract of fish and may, therefore, exhibit longer-lasting effects on the host. Probiotic candidates are commonly screened in in vitro assays, but the transfer to in vivo assessment is often problematic. In conclusion, modulation of the host-associated microbiome by the use of complex probiotics is promising, but a solid understanding of the interactions involved is only in its infancy and requires further research. Probiotics could be used to explore novel ingredients such as chitin-rich insect meal, which cannot be digested by the fish host alone. Most importantly, probiotics offer the opportunity to improve stress and disease resistance, which is among the most pressing problems in aquaculture.
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Wu B, Huang L, Chen J, Zhang Y, Wang J, He J. Gut microbiota of homologous Chinese soft-shell turtles (Pelodiscus sinensis) in different habitats. BMC Microbiol 2021; 21:142. [PMID: 33975559 PMCID: PMC8112038 DOI: 10.1186/s12866-021-02209-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 04/29/2021] [Indexed: 12/22/2022] Open
Abstract
Background Chinese soft-shell turtle (Pelodiscus sinensis) is an important commercial species for their high nutritional value and unique taste, but it has been a vulnerable species due to habitat loss. In this study, homologous juvenile turtles were allocated to lake, pond and paddy field to investigate the habitat effects on turtles. Results The growth, morphology and gut microbial communities were monitored during the 4 months cultural period. It showed higher growth rate of turtles in paddy field and pond. The appearance, visceral coefficients, gut morphology and microbial communities in turtles were distinct among different habitats. The microbial community richness on Chao1 was obviously lower in initial turtle guts from greenhouses, whereas it was relative higher in turtle guts sampled from paddy fields than ponds and lake. Significant differences on dominant microbes were found among initial and subsequent samples from different habitats. Firmicutes was the most abundant phylum in the guts of turtles sampled from the greenhouse initially, while Proteobacteria was the most abundant phylum after cultivation in different habitats, followed by Bacteroidetes. The microbial composition were distinct in different habitats at 60d, and the appearance of dominant phyla and genera was more driven by sampling time than habitats at 120d. Both the sampling time and habitats affected the appearance of dominant phyla and genera during the cultivation. The functional predictions indicated that both habitat type and sampling time had significant effects on metabolic pathways, especially amino acid and carbohydrate metabolism. Conclusions The turtles could adapt to natural lakes, artificial ponds and paddy fields. The gut microbial abundance was different among the habitats and sampling time. The species of microbes were significantly more diverse in paddy field specimens than in those from ponds and lakes. Rice-turtle coculture is a potential ecological and economic farming mode that plays important roles in wild turtle protection and food security. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-021-02209-y.
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Affiliation(s)
- Benli Wu
- Key Laboratory of Aquaculture & Stock Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, No.40 Nongkenan Road, Luyang District, Hefei, 230031, Anhui Province, China
| | - Long Huang
- Key Laboratory of Aquaculture & Stock Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, No.40 Nongkenan Road, Luyang District, Hefei, 230031, Anhui Province, China
| | - Jing Chen
- Key Laboratory of Aquaculture & Stock Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, No.40 Nongkenan Road, Luyang District, Hefei, 230031, Anhui Province, China
| | - Ye Zhang
- Key Laboratory of Aquaculture & Stock Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, No.40 Nongkenan Road, Luyang District, Hefei, 230031, Anhui Province, China
| | - Jun Wang
- State Key Laboratory of Eco-hydraulic in Northwest Arid Region of China, Xi'an University of Technology, 710048, Xi'an, China
| | - Jixiang He
- Key Laboratory of Aquaculture & Stock Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, No.40 Nongkenan Road, Luyang District, Hefei, 230031, Anhui Province, China.
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Moubareck CA. Human Milk Microbiota and Oligosaccharides: A Glimpse into Benefits, Diversity, and Correlations. Nutrients 2021; 13:1123. [PMID: 33805503 PMCID: PMC8067037 DOI: 10.3390/nu13041123] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/18/2021] [Accepted: 03/26/2021] [Indexed: 12/12/2022] Open
Abstract
Human milk represents a cornerstone for growth and development of infants, with extensive array of benefits. In addition to exceptionally nutritive and bioactive components, human milk encompasses a complex community of signature bacteria that helps establish infant gut microbiota, contributes to maturation of infant immune system, and competitively interferes with pathogens. Among bioactive constituents of milk, human milk oligosaccharides (HMOs) are particularly significant. These are non-digestible carbohydrates forming the third largest solid component in human milk. Valuable effects of HMOs include shaping intestinal microbiota, imparting antimicrobial effects, developing intestinal barrier, and modulating immune response. Moreover, recent investigations suggest correlations between HMOs and milk microbiota, with complex links possibly existing with environmental factors, genetics, geographical location, and other factors. In this review, and from a physiological and health implications perspective, milk benefits for newborns and mothers are highlighted. From a microbiological perspective, a focused insight into milk microbiota, including origins, diversity, benefits, and effect of maternal diet is presented. From a metabolic perspective, biochemical, physiological, and genetic significance of HMOs, and their probable relations to milk microbiota, are addressed. Ongoing research into mechanistic processes through which the rich biological assets of milk promote development, shaping of microbiota, and immunity is tackled.
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Affiliation(s)
- Carole Ayoub Moubareck
- College of Natural and Health Sciences, Zayed University, Dubai 19282, United Arab Emirates
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Hasan MT, Jang WJ, Lee BJ, Hur SW, Lim SG, Kim KW, Han HS, Lee EW, Bai SC, Kong IS. Dietary Supplementation of Bacillus sp. SJ-10 and Lactobacillus plantarum KCCM 11322 Combinations Enhance Growth and Cellular and Humoral Immunity in Olive Flounder (Paralichthys olivaceus). Probiotics Antimicrob Proteins 2021; 13:1277-1291. [PMID: 33713023 DOI: 10.1007/s12602-021-09749-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2021] [Indexed: 12/31/2022]
Abstract
Experiments were conducted to identify different ratios of Bacillus sp. SJ-10 and Lactobacillus plantarum KCCM 11322 mixtures at a concentration of 1 × 108 CFU/g diet; the effects on growth and cellular and humoral immune responses and the characteristics of disease protection in olive flounder (Paralichthys olivaceus). Flounder were divided into six groups and fed control diet D-1 (without Bacillus sp. SJ-10 and L. plantarum KCCM 11322), positive control diets D-2 (Bacillus sp. SJ-10 at 1 × 108 CFU/g feed) and D-3 (L. plantarum KCCM 11322 at 1 × 108 CFU/g feed); or treatment diets D-4 (3:1 Bacillus sp. SJ-10 and L. plantarum KCCM 11322 at 0.75 + 0.25 × 108 CFU/g feed), D-5 (1:1 Bacillus sp. SJ-10 and L. plantarum KCCM 11322 at 0.50 + 0.50 × 108 CFU/g feed), or D-6 (1:3 Bacillus sp. SJ-10 and L. plantarum KCCM 11322 at 0.25 + 0.75 × 108 CFU/g feed) for 8 weeks. Group D-4 demonstrated better growth and feed utilization (P < 0.05) compared with the controls and positive controls. Similar modulation was also observed in respiratory burst for all treatments and in the expression levels of TNF-α, IL-1β, IL-6, and IL-10 in different organs in D-4. D-4 and D-5 increased respiratory burst, superoxide dismutase, lysozyme, and myeloperoxidase activities compared with the controls, and only D-4 increased microvilli length. When challenged with 1 × 108 CFU/mL Streptococcus iniae, the fish in the D-4 and D-5 groups survived up to 14 days, whereas the fish in the other groups reached 100% mortality at 11.50 days. Collectively, a ratio-specific Bacillus sp. SJ-10 and L. plantarum KCCM 11322 mixture (3:1) was associated with elevated growth, innate immunity, and streptococcosis resistance (3:1 and 1:1) compared with the control and single probiotic diets.
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Affiliation(s)
- Md Tawheed Hasan
- Department of Biotechnology, Pukyong National University, Busan, 608-737, Republic of Korea.,Department of Aquaculture, Sylhet Agricultural University, Sylhet-3100, Bangladesh
| | - Won Je Jang
- Department of Biotechnology, Pukyong National University, Busan, 608-737, Republic of Korea
| | - Bong-Joo Lee
- Aquafeed Research Center, NIFS, Pohang, 791-923, Republic of Korea
| | - Sang Woo Hur
- Aquafeed Research Center, NIFS, Pohang, 791-923, Republic of Korea
| | - Sang Gu Lim
- Aquafeed Research Center, NIFS, Pohang, 791-923, Republic of Korea
| | - Kang Woong Kim
- Aquafeed Research Center, NIFS, Pohang, 791-923, Republic of Korea.,Aquaculture Management Division, NIFS, Busan, 46083, Republic of Korea
| | - Hyon-Sob Han
- Faculty of Marine Applied Bioscience, Kunsan National University, Kunsan, 54150, Republic of Korea
| | - Eun-Woo Lee
- Biopharmaceutical Engineering Major, Division of Applied Bioengineering, Dong-Eui University, Busan, 47340, Republic of Korea
| | - Sungchul C Bai
- Department of Marine Bio-Materials and Aquaculture, Pukyong National University, Busan, 608-737, Republic of Korea.
| | - In-Soo Kong
- Department of Biotechnology, Pukyong National University, Busan, 608-737, Republic of Korea.
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Endosymbiotic pathogen-inhibitory gut bacteria in three Indian Major Carps under polyculture system: A step toward making a probiotics consortium. AQUACULTURE AND FISHERIES 2021. [DOI: 10.1016/j.aaf.2020.03.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Acosta F, Montero D, Izquierdo M, Galindo-Villegas J. High-level biocidal products effectively eradicate pathogenic γ-proteobacteria biofilms from aquaculture facilities. AQUACULTURE (AMSTERDAM, NETHERLANDS) 2021; 532:736004. [PMID: 39175494 PMCID: PMC11338163 DOI: 10.1016/j.aquaculture.2020.736004] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/11/2020] [Accepted: 10/03/2020] [Indexed: 08/24/2024]
Abstract
The use of effective biocides as disinfectants is essential in aquaculture facilities. However, while most biocides act effectively on free-living planktonic pathogens, they are seldom useful against biofilms. In this study, we evaluate the biocidal efficacy and antimicrobial specific contact time of three disinfectants, Virkon™Aquatic (VirA), peracetic acid (PerA) and hydrogen peroxide (HydP), on Vibrio anguillarum, V. harveyi, V. alginolyticus, and Photobacterium damselae subspecies piscicida against their both life phases. By using the minimum inhibitory, bactericidal, and eradication concentrations of disinfectants acting on the free-living planktonic state (MIC; MBC) and biofilms (MBIC; MBEC), we determined the in vitro susceptibility of each bacterial strain against three different individual concentrations of VirA, PerA, and HydP added at 1, 5, and 10 min intervals. PerA and VirA had the highest bactericidal efficacies against the free-living planktonic state and biofilm of all bacteria. Kinetically, PerA gave a positive result more quickly in both cases regardless of the strain in question, while the weakest HydP required longer than 10 min to act effectively. Moreover, we conducted a short in vivo safety trial by pouring the suggested MIC of each disinfectant into tanks containing juvenile Gilthead seabream (Sparus aurata). A significant mortality after 24 h was observed pointing to the potential risk a mishap of these chemicals might cause to fish. Nevertheless, collectively, our results support the inclusion of biocides within biosecurity protocols in aquaculture facilities and highlight PerA as the most effective disinfectant for fighting against biofilms produced by V. anguillarum, V. harveyi, V. alginolyticus or P. damselae subsp. piscicida.
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Affiliation(s)
- Félix Acosta
- Grupo de Investigación en Acuicultura (GIA), IU-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Crta. Taliarte s/n, Telde, Las Palmas, Canary Islands, 35214, Spain
| | - Daniel Montero
- Grupo de Investigación en Acuicultura (GIA), IU-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Crta. Taliarte s/n, Telde, Las Palmas, Canary Islands, 35214, Spain
| | - Marisol Izquierdo
- Grupo de Investigación en Acuicultura (GIA), IU-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Crta. Taliarte s/n, Telde, Las Palmas, Canary Islands, 35214, Spain
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Structure and predictive metabolic contribution of intestinal microbiota of Longfin yellowtail (Seriola rivoliana) juveniles in aquaculture systems. Mol Biol Rep 2020; 47:9627-9636. [PMID: 33159677 DOI: 10.1007/s11033-020-05970-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 11/02/2020] [Indexed: 12/11/2022]
Abstract
Seriola rivoliana intestinal microbiota (IM) was characterised under aquaculture conditions through 16S rRNA amplicon sequencing. Specimens of 30 days after hatching (DAH) were maintained in three tanks and fed under the same environmental conditions for characterisation 15 days prior to sampling. Three fish were randomly taken from each tank; total DNA extraction of the gut microbiota was performed to characterise microbial composition and its metabolic prediction. The V3 hypervariable region of the 16S rRNA was amplified and sequenced with Illumina pair-end technology. The prokaryotic components in the S. rivoliana intestine were dominated mainly by the phyla Proteobacteria, Firmicutes, Bacteroidetes, Cyanobacteria and Actinobacteria. No significant differences in beta diversity were detected in the three samples (tanks). However in alpha diversity, they were detected in juveniles of the same cohort within the same group, as exemplified by enrichment of certain bacterial groups, mainly of the Clostridia class, which were specific in each fish within the same tank. The metabolic prediction analyses suggested that S. rivoliana IM contribute to the metabolism of amino acids, carbohydrates, lipids, and immune system. This study provides the first IM characterisation under rearing conditions of S. rivoliana-a species with broad economic potential-and contributes to novel information for potential use of probiotics in future trials.
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McMillan LE, Adamo SA. Friend or foe? Effects of host immune activation on the gut microbiome in the caterpillar Manduca sexta. ACTA ACUST UNITED AC 2020; 223:223/19/jeb226662. [PMID: 33046577 DOI: 10.1242/jeb.226662] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 08/12/2020] [Indexed: 01/04/2023]
Abstract
For many animals, the gut microbiome plays an essential role in immunity and digestion. However, certain animals, such as the caterpillar Manduca sexta, do not have a resident gut microbiome. Although these animals do have bacteria that pass through their gut from their natural environment, the absence of such bacteria does not reduce growth or survival. We hypothesized that M. sexta would sterilize their gut as a protective measure against secondary infection when faced with a gut infection or exposure to heat-killed bacteria in the blood (haemolymph). However, we found that gut sterilization did not occur during either type of immune challenge, i.e. bacterial numbers did not decrease. By examining the pattern of immune-related gene expression, gut pH, live bacterial counts and mass change (as a measure of sickness behaviour), we found evidence for physiological trade-offs between regulating the microbiome and defending against systemic infections. Caterpillars exposed to both gut pathogens and a systemic immune challenge had higher numbers of bacteria in their gut than caterpillars exposed to a single challenge. Following a multivariate analysis of variance, we found that the response patterns following an oral challenge, systemic challenge or dual challenge were unique. Our results suggest that the immune response for each challenge resulted in a different configuration of the immunophysiological network. We hypothesize that these different configurations represent different resolutions of physiological trade-offs based on the immune responses needed to best protect the animal against the present immune challenges.
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Affiliation(s)
- Laura E McMillan
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada, B3H4R2
| | - Shelley A Adamo
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada, B3H4R2
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Flanagan E, Lamport D, Brennan L, Burnet P, Calabrese V, Cunnane SC, de Wilde MC, Dye L, Farrimond JA, Emerson Lombardo N, Hartmann T, Hartung T, Kalliomäki M, Kuhnle GG, La Fata G, Sala-Vila A, Samieri C, Smith AD, Spencer JP, Thuret S, Tuohy K, Turroni S, Vanden Berghe W, Verkuijl M, Verzijden K, Yannakoulia M, Geurts L, Vauzour D. Nutrition and the ageing brain: Moving towards clinical applications. Ageing Res Rev 2020; 62:101079. [PMID: 32461136 DOI: 10.1016/j.arr.2020.101079] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 04/28/2020] [Accepted: 05/04/2020] [Indexed: 12/11/2022]
Abstract
The global increases in life expectancy and population have resulted in a growing ageing population and with it a growing number of people living with age-related neurodegenerative conditions and dementia, shifting focus towards methods of prevention, with lifestyle approaches such as nutrition representing a promising avenue for further development. This overview summarises the main themes discussed during the 3rd Symposium on "Nutrition for the Ageing Brain: Moving Towards Clinical Applications" held in Madrid in August 2018, enlarged with the current state of knowledge on how nutrition influences healthy ageing and gives recommendations regarding how the critical field of nutrition and neurodegeneration research should move forward into the future. Specific nutrients are discussed as well as the impact of multi-nutrient and whole diet approaches, showing particular promise to combatting the growing burden of age-related cognitive decline. The emergence of new avenues for exploring the role of diet in healthy ageing, such as the impact of the gut microbiome and development of new techniques (imaging measures of brain metabolism, metabolomics, biomarkers) are enabling researchers to approach finding answers to these questions. But the translation of these findings into clinical and public health contexts remains an obstacle due to significant shortcomings in nutrition research or pressure on the scientific community to communicate recommendations to the general public in a convincing and accessible way. Some promising programs exist but further investigation to improve our understanding of the mechanisms by which nutrition can improve brain health across the human lifespan is still required.
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Legrand TPRA, Wynne JW, Weyrich LS, Oxley APA. Investigating Both Mucosal Immunity and Microbiota in Response to Gut Enteritis in Yellowtail Kingfish. Microorganisms 2020; 8:E1267. [PMID: 32825417 PMCID: PMC7565911 DOI: 10.3390/microorganisms8091267] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/03/2020] [Accepted: 08/19/2020] [Indexed: 12/24/2022] Open
Abstract
The mucosal surfaces of fish play numerous roles including, but not limited to, protection against pathogens, nutrient digestion and absorption, excretion of nitrogenous wastes and osmotic regulation. During infection or disease, these surfaces act as the first line of defense, where the mucosal immune system interacts closely with the associated microbiota to maintain homeostasis. This study evaluated microbial changes across the gut and skin mucosal surfaces in yellowtail kingfish displaying signs of gut inflammation, as well as explored the host gene expression in these tissues in order to improve our understanding of the underlying mechanisms that contribute to the emergence of these conditions. For this, we obtained and analyzed 16S rDNA and transcriptomic (RNA-Seq) sequence data from the gut and skin mucosa of fish exhibiting different health states (i.e., healthy fish and fish at the early and late stages of enteritis). Both the gut and skin microbiota were perturbed by the disease. More specifically, the gastrointestinal microbiota of diseased fish was dominated by an uncultured Mycoplasmataceae sp., and fish at the early stage of the disease showed a significant loss of diversity in the skin. Using transcriptomics, we found that only a few genes were significantly differentially expressed in the gut. In contrast, gene expression in the skin differed widely between health states, in particular in the fish at the late stage of the disease. These changes were associated with several metabolic pathways that were differentially expressed and reflected a weakened host. Altogether, this study highlights the sensitivity of the skin mucosal surface in response to gut inflammation.
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Affiliation(s)
- Thibault P. R. A. Legrand
- Department of Ecology and Evolution, School of Biological Sciences, The University of Adelaide, Adelaide, SA 5005, Australia;
- CSIRO, Agriculture and Food, Hobart, TAS 7004, Australia;
- South Australia Research and Development Institute, Aquatic Sciences Centre, West Beach, SA 5024, Australia
| | - James W. Wynne
- CSIRO, Agriculture and Food, Hobart, TAS 7004, Australia;
| | - Laura S. Weyrich
- Department of Ecology and Evolution, School of Biological Sciences, The University of Adelaide, Adelaide, SA 5005, Australia;
- Department of Anthropology and the Huck Institutes of the Life Sciences, The Pennsylvania State University, State College, PA 16801, USA
| | - Andrew P. A. Oxley
- School of Life and Environmental Sciences, Faculty of Sciences Engineering and Built Environment, Deakin University, Waurn Ponds, VIC 3216, Australia
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Abd-Elmonsef Mahmoud G, Osman YA, Abdel-Hakeem SS. Hydrolytic bacteria associated with natural helminth infection in the midgut of Red Sea marbled spinefoot rabbit fish Siganus rivulatus. Microb Pathog 2020; 147:104404. [PMID: 32781103 DOI: 10.1016/j.micpath.2020.104404] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/15/2020] [Accepted: 07/17/2020] [Indexed: 10/23/2022]
Abstract
Fish infected with intestinal helminths or pathogenic bacteria can pose a serious risk of foodborne disease, threatening human and animal health, and require high attention. The current study investigates the diversity and composition of the microbiota in the midgut of rabbit fish Siganus rivulatus naturally infected with helminths. Six species of helminth parasites, including the digeneans Hexangium sigani and Gyliauchen volubilis, the acanthocephalans Sclerocollum rubrimaris and Neorhadinorhynchus macrospinosus, and the nematodes Procammalanus elatensis, and Ascaridoid larvae were recorded in the fish intestine. P. elatensis had the highest prevalence, occurring in 65% of infected fish; 72.2% of infected fish had concurrent infection with two or more helminth species. The total count of aerobic bacteria ranged from 1 to 305 colony-forming units (CFU)/g midgut contents. Four hydrolytic bacteria were recovered from the infected samples: Escherichia coli (ASU 31), Bacillus cereus (ASU 36) MN955553, Bacillus thuringiensis (ASU 34) MN955550, and Novosphingobium aromaticivorans (ASU 35) MN955552, which were identified using 16S rRNA genes. Bacterial richness was significantly correlated with concurrent parasitic infection and high content of extracellular hydrolytic amylases, proteases, cellulases, and lipases. The present results showed that the composition of the microbiota was affected by natural helminth infections in Siganus rivulatus, and the significant interaction between parasitic load and intestinal pathogenic bacteria, which may be primary in fish diseases etiology.
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Affiliation(s)
| | | | - Sara Salah Abdel-Hakeem
- Parasitology Laboratory, Zoology Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt.
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Zhou J, Zhao YT, Dai YY, Jiang YJ, Lin LH, Li H, Li P, Qu YF, Ji X. Captivity affects diversity, abundance, and functional pathways of gut microbiota in the northern grass lizard Takydromus septentrionalis. Microbiologyopen 2020; 9:e1095. [PMID: 32666685 PMCID: PMC7520994 DOI: 10.1002/mbo3.1095] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/15/2020] [Accepted: 05/30/2020] [Indexed: 12/14/2022] Open
Abstract
Animals in captivity undergo a range of environmental changes from wild animals. An increasing number of studies show that captivity significantly affects the abundance and community structure of gut microbiota. The northern grass lizard (Takydromus septentrionalis) is an extensively studied lacertid lizard and has a distributional range covering the central and southeastern parts of China. Nonetheless, little is known about the gut microbiota of this species, which may play a certain role in nutrient and energy metabolism as well as immune homeostasis. Here, we examined the differences in the gut microbiota between two groups (wild and captive) of lizards through 16S rRNA sequencing using the Illumina HiSeq platform. The results demonstrated that the dominant microbial components in both groups consisted of Proteobacteria, Firmicutes, and Tenericutes. The two groups did not differ in the abundance of these three phyla. Citrobacter was the most dominant genus in wild lizards, while Morganella was the most dominant genus in captive lizards. Moreover, gene function predictions showed that genes at the KEGG pathway levels2 were more abundant in wild lizards than in captive lizards but, at the KEGG pathway levels1, the differences in gene abundances between wild and captive lizards were not significant. In summary, captivity exerted a significant impact on the gut microbial community structure and diversity in T. septentrionalis, and future work could usefully investigate the causes of these changes using a comparative approach.
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Affiliation(s)
- Jin Zhou
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Yu-Tian Zhao
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Ying-Yu Dai
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Yi-Jin Jiang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Long-Hui Lin
- Hangzhou Key Laboratory for Ecosystem Protection and Restoration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Hong Li
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Peng Li
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Yan-Fu Qu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Xiang Ji
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
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Siriyappagouder P, Galindo-Villegas J, Dhanasiri AKS, Zhang Q, Mulero V, Kiron V, Fernandes JMO. Pseudozyma Priming Influences Expression of Genes Involved in Metabolic Pathways and Immunity in Zebrafish Larvae. Front Immunol 2020; 11:978. [PMID: 32528473 PMCID: PMC7256946 DOI: 10.3389/fimmu.2020.00978] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 04/24/2020] [Indexed: 12/14/2022] Open
Abstract
Fungi, particularly yeasts, are known essential components of the host microbiota but their functional relevance in development of immunity and physiological processes of fish remains to be elucidated. In this study, we used a transcriptomic approach and a germ-free (GF) fish model to determine the response of newly hatched zebrafish larvae after 24 h exposure to Pseudozyma sp. when compared to conventionally-raised (CR) larvae. We observed 59 differentially expressed genes in Pseudozyma-exposed GF zebrafish larvae compared to their naïve control siblings. Surprisingly, in CR larvae, there was not a clear transcriptome difference between Pseudozyma-exposed and control larvae. Differentially expressed genes in GF larvae were involved in host metabolic pathways, mainly peroxisome proliferator-activated receptors, steroid hormone biosynthesis, drug metabolism and bile acid biosynthesis. We also observed a significant change in the transcript levels of immune-related genes, namely complement component 3a, galectin 2b, ubiquitin specific peptidase 21, and aquaporins. Nevertheless, we did not observe any significant response at the cellular level, since there were no differences between neutrophil migration or proliferation between control and yeast-exposed GF larvae. Our findings reveal that exposure to Pseudozyma sp. may affect metabolic pathways and immune-related processes in germ-free zebrafish, suggesting that commensal yeast likely play a significant part in the early development of fish larvae.
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Affiliation(s)
| | - Jorge Galindo-Villegas
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
- Department of Cell Biology and Histology, Faculty of Biology, Institute of Biomedical Research of Murcia-Arrixaca, Campus Universitario de Espinardo, University of Murcia, Murcia, Spain
| | | | - Qirui Zhang
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
| | - Victoriano Mulero
- Department of Cell Biology and Histology, Faculty of Biology, Institute of Biomedical Research of Murcia-Arrixaca, Campus Universitario de Espinardo, University of Murcia, Murcia, Spain
| | - Viswanath Kiron
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
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Cueva C, Silva M, Pinillos I, Bartolomé B, Moreno-Arribas MV. Interplay between Dietary Polyphenols and Oral and Gut Microbiota in the Development of Colorectal Cancer. Nutrients 2020; 12:E625. [PMID: 32120799 PMCID: PMC7146370 DOI: 10.3390/nu12030625] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/21/2020] [Accepted: 02/24/2020] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is the third most diagnosed type of cancer worldwide. Dietary features play an important role in its development, and the involvement of human microbial communities in this pathology has also recently been recognized. Individuals with CRC display alterations in gut bacterial composition and a notably higher abundance of putative oral bacteria in colonic tumors. Many experimental studies and preclinical evidence propose that dietary polyphenols have a relevant role in CRC development and progression, mainly attributed to their immunomodulatory activities. Furthermore, polyphenols can modulate oral and gut microbiota, and in turn, intestinal microbes catabolize polyphenols to release metabolites that are often more active and better absorbed than the original phenolic compounds. The current study aimed to review and summarize current knowledge on the role of microbiota and the interactions between dietary polyphenols and microbiota in relation to CRC development. We have highlighted the mechanisms by which dietary polyphenols and/or their microbial metabolites exert their action on the pathogenesis and prevention of CRC as modulators of the composition and/or activity of oral and intestinal microbiota, including novel screening biomarkers and possible nutritional therapeutic implications.
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Affiliation(s)
| | | | | | | | - M. Victoria Moreno-Arribas
- Institute of Food Science Research (CIAL), CSIC-UAM, C/Nicolás Cabrera 9, Campus de Cantoblanco, 28049 Madrid, Spain; (C.C.); (M.S.); (I.P.); (B.B.)
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Montalban-Arques A, Scharl M. Intestinal microbiota and colorectal carcinoma: Implications for pathogenesis, diagnosis, and therapy. EBioMedicine 2019; 48:648-655. [PMID: 31631043 PMCID: PMC6838386 DOI: 10.1016/j.ebiom.2019.09.050] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/06/2019] [Accepted: 09/18/2019] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most frequently diagnosed cancers and leading cause of cancer-related deaths worldwide. In recent years, there has been a growing realisation that lifestyle plays a major role for CRC development and that intestinal microbiota, which are shaped by lifestyle and nutrition habits, may be critically involved in the pathogenesis of CRC. Although the precise mechanisms for how the microbiota contribute to CRC development and progression remain elusive, increasing evidence suggests a direct causative role for the intestinal microbiota in modulating signalling pathways, anti-tumour immune responses and cell proliferation. Recent advances in understanding host-microbe interactions have shed light onto the putative use of intestinal microbiota as a powerful tool in CRC diagnosis and therapy. Here, we will discuss the role of the intestinal microbiota in CRC pathogenesis, their potential utility as diagnostic markers, and consider how microbes could be used in therapeutic approaches for the treatment of CRC.
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Affiliation(s)
- Ana Montalban-Arques
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland
| | - Michael Scharl
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.
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