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Wong CB, Huang H, Ning Y, Xiao J. Probiotics in the New Era of Human Milk Oligosaccharides (HMOs): HMO Utilization and Beneficial Effects of Bifidobacterium longum subsp. infantis M-63 on Infant Health. Microorganisms 2024; 12:1014. [PMID: 38792843 PMCID: PMC11124435 DOI: 10.3390/microorganisms12051014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/10/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
A healthy gut microbiome is crucial for the immune system and overall development of infants. Bifidobacterium has been known to be a predominant species in the infant gut; however, an emerging concern is the apparent loss of this genus, in particular, Bifidobacterium longum subsp. infantis (B. infantis) in the gut microbiome of infants in industrialized nations, underscoring the importance of restoring this beneficial bacterium. With the growing understanding of the gut microbiome, probiotics, especially infant-type human-residential bifidobacteria (HRB) strains like B. infantis, are gaining prominence for their unique ability to utilize HMOs and positively influence infant health. This article delves into the physiology of a probiotic strain, B. infantis M-63, its symbiotic relationship with HMOs, and its potential in improving gastrointestinal and allergic conditions in infants and children. Moreover, this article critically assesses the role of HMOs and the emerging trend of supplementing infant formulas with the prebiotic HMOs, which serve as fuel for beneficial gut bacteria, thereby emulating the protective effects of breastfeeding. The review highlights the potential of combining B. infantis M-63 with HMOs as a feasible strategy to improve health outcomes in infants and children, acknowledging the complexities and requirements for further research in this area.
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Affiliation(s)
- Chyn Boon Wong
- International Division, Morinaga Milk Industry Co., Ltd., 5-2, Higashi Shimbashi 1-Chome, Minato-ku, Tokyo 105-7122, Japan
| | - Huidong Huang
- Nutrition Research Institute, Junlebao Dairy Group Co., Ltd., 36 Shitong Road, Shijiazhuang 050221, China
| | - Yibing Ning
- Nutrition Research Institute, Junlebao Dairy Group Co., Ltd., 36 Shitong Road, Shijiazhuang 050221, China
| | - Jinzhong Xiao
- Morinaga Milk Industry (Shanghai) Co., Ltd., Room 509 Longemont Yes Tower, No. 369 Kaixuan Road, Changning District, Shanghai 200050, China
- Department of Microbiota Research, Graduate School of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
- Research Center for Probiotics, Department of Nutrition and Health, China Agricultural University, Beijing 100093, China
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Shaw C, Weimer BC, Gann R, Desai PT, Shah JD. The Yin and Yang of pathogens and probiotics: interplay between Salmonella enterica sv. Typhimurium and Bifidobacterium infantis during co-infection. Front Microbiol 2024; 15:1387498. [PMID: 38812689 PMCID: PMC11133690 DOI: 10.3389/fmicb.2024.1387498] [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: 02/17/2024] [Accepted: 04/12/2024] [Indexed: 05/31/2024] Open
Abstract
Probiotic bacteria have been proposed as an alternative to antibiotics for the control of antimicrobial resistant enteric pathogens. The mechanistic details of this approach remain unclear, in part because pathogen reduction appears to be both strain and ecology dependent. Here we tested the ability of five probiotic strains, including some from common probiotic genera Lactobacillus and Bifidobacterium, to reduce binding of Salmonella enterica sv. Typhimurium to epithelial cells in vitro. Bifidobacterium longum subsp. infantis emerged as a promising strain; however, S. Typhimurium infection outcome in epithelial cells was dependent on inoculation order, with B. infantis unable to rescue host cells from preceding or concurrent infection. We further investigated the complex mechanisms underlying this interaction between B. infantis, S. Typhimurium, and epithelial cells using a multi-omics approach that included gene expression and altered metabolism via metabolomics. Incubation with B. infantis repressed apoptotic pathways and induced anti-inflammatory cascades in epithelial cells. In contrast, co-incubation with B. infantis increased in S. Typhimurium the expression of virulence factors, induced anaerobic metabolism, and repressed components of arginine metabolism as well as altering the metabolic profile. Concurrent application of the probiotic and pathogen notably generated metabolic profiles more similar to that of the probiotic alone than to the pathogen, indicating a central role for metabolism in modulating probiotic-pathogen-host interactions. Together these data imply crosstalk via small molecules between the epithelial cells, pathogen and probiotic that consistently demonstrated unique molecular mechanisms specific probiotic/pathogen the individual associations.
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Affiliation(s)
| | - Bart C. Weimer
- Department of Population Health and Reproduction, School of Veterinary Medicine, 100K Pathogen Genome Project, University of California, Davis, Davis, CA, United States
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Wala SJ, Ragan MV, Pryor E, Canvasser J, Diefenbach KA, Besner GE. Contemporary use of prophylactic probiotics in NICUs in the United States: a survey update. J Perinatol 2024; 44:739-744. [PMID: 38553600 DOI: 10.1038/s41372-024-01952-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 03/14/2024] [Accepted: 03/20/2024] [Indexed: 05/15/2024]
Abstract
OBJECTIVE In 2015, 14.0% of US NICUs administered probiotics to very low birth weight infants. Current probiotic use prior to and after the Fall of 2023 (when FDA warnings were issued) remains unknown. STUDY DESIGN A survey was distributed to the American Academy of Pediatrics Section on Neonatal and Perinatal Medicine (August-November/2022) and Neonatology Solutions' Level III/IV NICUs (January-April/2023). Probiotic administration practices were investigated. RESULTS In total, 289 unique NICUs and 406 providers responded to the survey. Of those, 29.1% of NICUs administered prophylactic probiotics to premature neonates, however, this decreased considerably after FDA warnings were issued. Additionally, 71.4% of providers stated willingness to administer probiotics to premature infants if there was an FDA-approved formulation. CONCLUSIONS Probiotic use in US NICUs increased between 2015 and the Fall of 2023 and then dropped dramatically following warning letters from the FDA. The introduction of an FDA-approved probiotic may further expand administration.
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Affiliation(s)
- Samantha J Wala
- Center for Perinatal Research, Nationwide Children's Hospital, Columbus, OH, USA
- Department of Pediatric Surgery, Nationwide Children's Hospital, Columbus, OH, USA
| | - Mecklin V Ragan
- Center for Perinatal Research, Nationwide Children's Hospital, Columbus, OH, USA
- Department of Pediatric Surgery, Nationwide Children's Hospital, Columbus, OH, USA
| | | | | | - Karen A Diefenbach
- Department of Pediatric Surgery, Nationwide Children's Hospital, Columbus, OH, USA
| | - Gail E Besner
- Center for Perinatal Research, Nationwide Children's Hospital, Columbus, OH, USA.
- Department of Pediatric Surgery, Nationwide Children's Hospital, Columbus, OH, USA.
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Bautista GM, Cera AJ, Schoenauer RJ, Persiani M, Lakshminrusimha S, Chandrasekharan P, Gugino SF, Underwood MA, McElroy SJ. Paneth cell ontogeny in term and preterm ovine models. Front Vet Sci 2024; 11:1275293. [PMID: 38318150 PMCID: PMC10839032 DOI: 10.3389/fvets.2024.1275293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
Introduction Paneth cells are critically important to intestinal health, including protecting intestinal stem cells, shaping the intestinal microbiome, and regulating host immunity. Understanding Paneth cell biology in the immature intestine is often modeled in rodents with little information in larger mammals such as sheep. Previous studies have only established the distribution pattern of Paneth cells in healthy adult sheep. Our study aimed to examine the ontogeny, quantification, and localization of Paneth cells in fetal and newborn lambs at different gestational ages and with perinatal transient asphyxia. We hypothesized that ovine Paneth cell distribution at birth resembles the pattern seen in humans (highest concentrations in the ileum) and that ovine Paneth cell density is gestation-dependent. Methods Intestinal samples were obtained from 126-127 (preterm, with and without perinatal transient asphyxia) and 140-141 (term) days gestation sheep. Samples were quantified per crypt in at least 100 crypts per animal and confirmed as Paneth cells through in immunohistochemistry. Results Paneth cells had significantly higher density in the ileum compared to the jejunum and were absent in the colon. Discussion Exposure to perinatal transient asphyxia acutely decreased Paneth cell numbers. These novel data support the possibility of utilizing ovine models for understanding Paneth cell biology in the fetus and neonate.
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Affiliation(s)
- Geoanna M. Bautista
- Department of Pediatrics, University of California, Davis, Sacramento, CA, United States
| | - Anjali J. Cera
- Department of Pediatrics, University of California, Davis, Sacramento, CA, United States
| | - Rebecca J. Schoenauer
- Stead Family Department of Pediatrics, University of Iowa, Iowa City, IA, United States
| | - Michele Persiani
- Department of Pediatrics, University of California, Davis, Sacramento, CA, United States
| | - Satyan Lakshminrusimha
- Department of Pediatrics, University of California, Davis, Sacramento, CA, United States
| | | | - Sylvia F Gugino
- Department of Pediatrics, University of Buffalo, Buffalo, NY, United States
| | - Mark A. Underwood
- Department of Pediatrics, University of California, Davis, Sacramento, CA, United States
| | - Steven J. McElroy
- Department of Pediatrics, University of California, Davis, Sacramento, CA, United States
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Lin X, Wu C. Identification and evaluation of probiotic potential of Bifidobacterium breve AHC3 isolated from chicken intestines and its effect on necrotizing enterocolitis (NEC) in newborn SD rats. PLoS One 2023; 18:e0287799. [PMID: 37917716 PMCID: PMC10621988 DOI: 10.1371/journal.pone.0287799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 06/13/2023] [Indexed: 11/04/2023] Open
Abstract
Necrotizing enterocolitis (NEC) is a severe intestinal disease of the newborn infants, associated with high morbidity and mortality. It has been reported that Bifidobacterium could protect the intestinal barrier function and reduce the risk of NEC. This study aimed to evaluate the probiotic potential of Bifidobacterium strains isolated from the chicken intestines and its effect on necrotizing enterocolitis in newborn SD rats. Out of 32 isolates, B. breve AHC3 not only exhibited excellent probiotic potential, including tolerance to artificial simulated gastric conditions, adhesion to HT-29 cells, antioxidant capacity and antibacterial activity, but also possessed reliable safety. Additionally, NEC model was established to further investigate the effect of B. breve AHC3 on necrotizing enterocolitis in newborn SD rats. It was illustrated that administration of B. breve AHC3 significantly not only reduced the incidence of NEC (from 81.25% to 34.38%) (P< 0.05), but also alleviated the severity of ileal injury (P< 0.05). Compared with NEC model, B. breve AHC3 could significantly decrease the level of proinflammatory factor TNF-α (P< 0.05) and increase the level of antiinflammatory factor IL-10 (P< 0.05) in the ileum of NEC rats. Through the intervention of B. breve AHC3, the gray value of inducible nitric oxide synthase (iNOS) in intestinal tissue of NEC rats was significantly reduced (P< 0.05). It was indicated that B. breve AHC3 exhibited prominent probiotic potential and reliable safety. In the neonatal SD rat model of NEC, B. breve AHC3 had an available protective effect on the intestinal injury of NEC, which might be related to reducing the inflammatory reaction in the ileum and inhibiting the expression of iNOS in intestinal tissue cells. B. breve AHC3 could be used as a potential treatment for human NEC.
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Affiliation(s)
- Xiaopei Lin
- Department of Pediatrics, Maternity and Child Health Care Hospital Affiliated to Anhui Medical University (Anhui Maternity and Child Health Care Hospital), Hefei, Anhui, China
| | - Changjun Wu
- Institute of Microbiology, Anhui Academy of Medical Sciences, Hefei, Anhui, China
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Gutierrez A, Pucket B, Engevik MA. Bifidobacterium and the intestinal mucus layer. MICROBIOME RESEARCH REPORTS 2023; 2:36. [PMID: 38045921 PMCID: PMC10688832 DOI: 10.20517/mrr.2023.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/21/2023] [Accepted: 09/13/2023] [Indexed: 12/05/2023]
Abstract
Bifidobacterium species are integral members of the human gut microbiota and these microbes have significant interactions with the intestinal mucus layer. This review delves into Bifidobacterium-mucus dynamics, shedding light on the multifaceted nature of this relationship. We cover conserved features of Bifidobacterium-mucus interactions, such as mucus adhesion and positive regulation of goblet cell and mucus production, as well as species and strain-specific attributes of mucus degradation. For each interface, we explore the molecular mechanisms underlying these interactions and their potential implications for human health. Notably, we emphasize the ability of Bifidobacterium species to positively influence the mucus layer, shedding light on its potential as a mucin-builder and a therapeutic agent for diseases associated with disrupted mucus barriers. By elucidating the complex interplay between Bifidobacterium and intestinal mucus, we aim to contribute to a deeper understanding of the gut microbiota-host interface and pave the way for novel therapeutic strategies.
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Affiliation(s)
- Alyssa Gutierrez
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Brenton Pucket
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Melinda A. Engevik
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
- Department of Microbiology & Immunology, Medical University of South Carolina, Charleston, SC 29425, USA
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Zhou KZ, Wu K, Deng LX, Hu M, Luo YX, Zhang LY. Probiotics to prevent necrotizing enterocolitis in very low birth weight infants: A network meta-analysis. Front Pediatr 2023; 11:1095368. [PMID: 36950176 PMCID: PMC10025406 DOI: 10.3389/fped.2023.1095368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 02/17/2023] [Indexed: 03/24/2023] Open
Abstract
Objective This study aims to review the evidence for the optimal regimen of probiotics for the prevention of necrotizing enterocolitis (NEC) in very low birth weight infants. Design Through searching PubMed, EMBASE, Cochrane Library, and Web of Science till September 30, 2022, only randomized controlled trials were included to evaluate the optimal regimen of probiotics for the prevention of NEC in very low birth weight infants. The methodological quality of the included studies was assessed by the Cochrane risk of bias assessment tool (RoB 2), and the collected data were analyzed accordingly using Stata software. Results Twenty-seven RCTs were included, and the total sample size used in the study was 529. The results of the network meta-analysis showed that Bovine lactoferrin + Lactobacillus rhamnosus GG (RR 0.03; 95% CI 0.00-0.35), Lactobacillus rhamnosus + Lactobacillus plantarum + Lactobacillus casei + Bifidobacterium lactis (RR 0.06; 95% CI 0.00-0.70), Bifidobacterium lactis + inulin (RR 0.16; 95% CI 0.03-0.91) were superior to the control group (Bifidobacterium lactis + Bifidobacterium longum) in reducing the incidence of NEC. The reduction in the incidence of NEC were as follows: Bovine lactoferrin + Lactobacillus rhamnosus GG (SUCRA 95.7%) > Lactobacillus rhamnosus + Lactobacillus plantarum + Lactobacillus casei + Bifidobacterium lactis (SUCRA 89.4%) > Bifidobacterium lactis + inulin (SUCRA 77.8%). Conclusions This network meta-analysis suggests that Lactobacillus rhamnosus GG combined with bovine lactoferrin maybe the most recommended regimen for the prevention of NEC in very low birth weight infants.
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Prebiotic activity of chitooligosaccharides and their ability to alleviate necrotizing enterocolitis in newborn rats. Carbohydr Polym 2023; 299:120156. [PMID: 36876780 DOI: 10.1016/j.carbpol.2022.120156] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 09/14/2022] [Accepted: 09/22/2022] [Indexed: 11/07/2022]
Abstract
Chitooligosaccharides (COS) have many bioactive functions and favorable prospects in the fields of biomedicine and functional foods. In this study, COS was found to significantly improve the survival rate of neonatal necrotizing enterocolitis (NEC) model rats, alter the composition of the intestinal microbiota, inhibit the expression of inflammatory cytokines, and alleviate intestinal pathological injury. In addition, COS also increased the abundance of Akkermansia, Bacteroides, and Clostridium sensu stricto 1 in the intestines of normal rats (the normal rat model is more universal). The in vitro fermentation results found that COS was degraded by the human gut microbiota to promote the abundance of Clostridium sensu stricto 1 and produced numerous short-chain fatty acids (SCFAs). In vitro metabolomic analysis revealed that COS catabolism was associated with significant increases in 3-hydroxybutyrate acid and γ-aminobutyric acid. This study provides evidence for the potential of COS as a prebiotic in food products and to ameliorate NEC development in neonatal rats.
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Davis EC, Castagna VP, Sela DA, Hillard MA, Lindberg S, Mantis NJ, Seppo AE, Järvinen KM. Gut microbiome and breast-feeding: Implications for early immune development. J Allergy Clin Immunol 2022; 150:523-534. [PMID: 36075638 PMCID: PMC9463492 DOI: 10.1016/j.jaci.2022.07.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 07/21/2022] [Accepted: 07/21/2022] [Indexed: 11/16/2022]
Abstract
Establishment of the gut microbiome during early life is a complex process with lasting implications for an individual's health. Several factors influence microbial assembly; however, breast-feeding is recognized as one of the most influential drivers of gut microbiome composition during infancy, with potential implications for function. Differences in gut microbial communities between breast-fed and formula-fed infants have been consistently observed and are hypothesized to partially mediate the relationships between breast-feeding and decreased risk for numerous communicable and noncommunicable diseases in early life. Despite decades of research on the gut microbiome of breast-fed infants, there are large scientific gaps in understanding how human milk has evolved to support microbial and immune development. This review will summarize the evidence on how breast-feeding broadly affects the composition and function of the early-life gut microbiome and discuss mechanisms by which specific human milk components shape intestinal bacterial colonization, succession, and function.
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Affiliation(s)
- Erin C Davis
- Division of Allergy and Immunology, Center for Food Allergy, Department of Pediatrics, University of Rochester School of Medicine and Dentistry, Golisano Children's Hospital, Rochester, NY
| | | | - David A Sela
- Department of Food Science, University of Massachusetts Amherst, Amherst, Mass; Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, Mass; Organismic and Evolutionary Biology Graduate Program, University of Massachusetts Amherst, Amherst, Mass
| | - Margaret A Hillard
- Department of Food Science, University of Massachusetts Amherst, Amherst, Mass; Organismic and Evolutionary Biology Graduate Program, University of Massachusetts Amherst, Amherst, Mass
| | - Samantha Lindberg
- Department of Biomedical Sciences, University of Albany, Rensselaer, NY
| | - Nicholas J Mantis
- Division of Infectious Diseases, New York State Department of Health, Albany, NY
| | - Antti E Seppo
- Division of Allergy and Immunology, Center for Food Allergy, Department of Pediatrics, University of Rochester School of Medicine and Dentistry, Golisano Children's Hospital, Rochester, NY
| | - Kirsi M Järvinen
- Division of Allergy and Immunology, Center for Food Allergy, Department of Pediatrics, University of Rochester School of Medicine and Dentistry, Golisano Children's Hospital, Rochester, NY; Division of Allergy, Immunology, and Rheumatology, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY; Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, Rochester, NY.
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Ren Z, Chen S, Lv H, Peng L, Yang W, Chen J, Wu Z, Wan C. Effect of Bifidobacterium animalis subsp. lactis SF on enhancing the tumor suppression of irinotecan by regulating the intestinal flora. Pharmacol Res 2022; 184:106406. [PMID: 35987480 DOI: 10.1016/j.phrs.2022.106406] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 08/12/2022] [Accepted: 08/16/2022] [Indexed: 10/15/2022]
Abstract
The gut microbiota plays a role in tumor therapy by participating in immune regulation. Here, we demonstrated through 8-day probiotic supplementation experiments and fecal microbiota transplantation experiments that Bifidobacterium animalis subsp. lactis SF enhanced the antitumor effect of irinotecan and prevented the occurrence of intestinal damage by modulating the gut microbiota and reducing the relative abundance of pro-inflammatory microbiota. Therefore, the intestinal inflammation was inhibited, the TGF-β leakage was reduced, and the PI3K/AKT pathway activation was inhibited. Thus, the tumor apoptotic autophagy was finally promoted. Simultaneously, the reduction of TGF-β relieved the immunosuppression caused by CPT-11, promoted the differentiation of CD4+ and CD8+ T cells in tumor tissue, and consequently inhibited tumor growth and invasion. This study disclosed the mechanism of B. lactis SF assisting CPT-11 in antitumor activity and suggested that B. lactis SF plays a new role in anticancer effects as a nutritional intervention.
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Affiliation(s)
- Zhongyue Ren
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, PR China
| | - Shufang Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, PR China
| | - Huihui Lv
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, PR China
| | - Lingling Peng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, PR China
| | - Wanyu Yang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, PR China
| | - Jiahui Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, PR China
| | - Zhihua Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, PR China; Jiangxi-OAI Joint Research Institute, Nanchang University, Nanchang 330047, PR China.
| | - Cuixiang Wan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, PR China; Jiangxi-OAI Joint Research Institute, Nanchang University, Nanchang 330047, PR China.
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Geng J, Sui Z, Dou W, Miao Y, Wang T, Wei X, Chen S, Zhang Z, Xiao J, Huang D. 16S rRNA Gene Sequencing Reveals Specific Gut Microbes Common to Medicinal Insects. Front Microbiol 2022; 13:892767. [PMID: 35651499 PMCID: PMC9149300 DOI: 10.3389/fmicb.2022.892767] [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: 03/09/2022] [Accepted: 04/27/2022] [Indexed: 11/24/2022] Open
Abstract
Insects have a long history of being used in medicine, with clear primary and secondary functions and less side effects, and the study and exploitation of medicinal insects have received increasing attention. Insects gut microbiota and their metabolites play an important role in protecting the hosts from other potentially harmful microbes, providing nutrients, promoting digestion and degradation, and regulating growth and metabolism of the hosts. However, there are still few studies linking the medicinal values of insects with their gut microbes. In this study, we focused on the specific gut microbiota common to medicinal insects, hoping to trace the potential connection between medicinal values and gut microbes of medicinal insects. Based on 16S rRNA gene sequencing data, we compared the gut microbiota of medicinal insects [Periplaneta americana, Protaetia (Liocola) brevitarsis (Lewis) and Musca domestica], in their medicinal stages, and non-medicinal insects (Hermetia illucens L., Tenebrio molitor, and Drosophila melanogaster), and found that the intestinal microbial richness of medicinal insects was higher, and there were significant differences in the microbial community structure between the two groups. We established a model using a random-forest method to preliminarily screen out several types of gut microbiota common to medicinal insects that may play medicinal values: Parabacteroides goldsteinii, Lactobacillus dextrinicus, Bifidobacterium longum subsp. infantis (B. infantis), and Vagococcus carniphilus. In particular, P. goldsteinii and B. infantis were most probably involved in the anti-inflammatory effects of medicinal insects. Our results revealed an association between medicinal insects and their gut microbes, providing new development directions and possibly potential tools for utilizing microbes to enhance the medicinal efficacy of medicinal insects.
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Affiliation(s)
- Jin Geng
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Zhuoxiao Sui
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Weihao Dou
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Yunheng Miao
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Tao Wang
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Xunfan Wei
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Sicong Chen
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Zongqi Zhang
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Jinhua Xiao
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Dawei Huang
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
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