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Nieto EE, Jurburg SD, Steinbach N, Festa S, Morelli IS, Coppotelli BM, Chatzinotas A. DNA stable isotope probing reveals the impact of trophic interactions on bioaugmentation of soils with different pollution histories. MICROBIOME 2024; 12:146. [PMID: 39113100 PMCID: PMC11305082 DOI: 10.1186/s40168-024-01865-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 06/26/2024] [Indexed: 08/10/2024]
Abstract
BACKGROUND Bioaugmentation is considered a sustainable and cost-effective methodology to recover contaminated environments, but its outcome is highly variable. Predation is a key top-down control mechanism affecting inoculum establishment, however, its effects on this process have received little attention. This study focused on the impact of trophic interactions on bioaugmentation success in two soils with different pollution exposure histories. We inoculated a 13C-labelled pollutant-degrading consortium in these soils and tracked the fate of the labelled biomass through stable isotope probing (SIP) of DNA. We identified active bacterial and eukaryotic inoculum-biomass consumers through amplicon sequencing of 16S rRNA and 18S rRNA genes coupled to a novel enrichment factor calculation. RESULTS Inoculation effectively increased PAH removal in the short-term, but not in the long-term polluted soil. A decrease in the relative abundance of the inoculated genera was observed already on day 15 in the long-term polluted soil, while growth of these genera was observed in the short-term polluted soil, indicating establishment of the inoculum. In both soils, eukaryotic genera dominated as early incorporators of 13C-labelled biomass, while bacteria incorporated the labelled biomass at the end of the incubation period, probably through cross-feeding. We also found different successional patterns between the two soils. In the short-term polluted soil, Cercozoa and Fungi genera predominated as early incorporators, whereas Ciliophora, Ochrophyta and Amoebozoa were the predominant genera in the long-term polluted soil. CONCLUSION Our results showed differences in the inoculum establishment and predator community responses, affecting bioaugmentation efficiency. This highlights the need to further study predation effects on inoculum survival to increase the applicability of inoculation-based technologies. Video Abstract.
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Affiliation(s)
- Esteban E Nieto
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CONICET), CINDEFI (UNLP, CCT-La Plata Street 50 N°227, 1900, La Plata, Argentina.
- Department of Applied Microbial Ecology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany.
| | - Stephanie D Jurburg
- Department of Applied Microbial Ecology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Nicole Steinbach
- Department of Applied Microbial Ecology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
| | - Sabrina Festa
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CONICET), CINDEFI (UNLP, CCT-La Plata Street 50 N°227, 1900, La Plata, Argentina
| | - Irma S Morelli
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CONICET), CINDEFI (UNLP, CCT-La Plata Street 50 N°227, 1900, La Plata, Argentina
- Comisión de Investigaciones Científicas de La Provincia de Buenos Aires, La Plata, Argentina
| | - Bibiana M Coppotelli
- Centro de Investigación y Desarrollo en Fermentaciones Industriales, CONICET), CINDEFI (UNLP, CCT-La Plata Street 50 N°227, 1900, La Plata, Argentina
| | - Antonis Chatzinotas
- Department of Applied Microbial Ecology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany.
- Institute of Biology, Leipzig University, Leipzig, Germany.
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.
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Yang Y, Zhang F, Yu X, Wang L, Wang Z. Integrating microbial 16S rRNA sequencing and non-targeted metabolomics to reveal sexual dimorphism of the chicken cecal microbiome and serum metabolome. Front Microbiol 2024; 15:1403166. [PMID: 39101039 PMCID: PMC11294938 DOI: 10.3389/fmicb.2024.1403166] [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: 03/18/2024] [Accepted: 06/24/2024] [Indexed: 08/06/2024] Open
Abstract
Background The gut microbiome plays a key role in the formation of livestock and poultry traits via serum metabolites, and empirical evidence has indicated these traits are sex-linked. Methods We examined 106 chickens (54 male chickens and 52 female chickens) and analyzed cecal content samples and serum samples by 16S rRNA gene sequencing and non-targeted metabolomics, respectively. Results The cecal microbiome of female chickens was more stable and more complex than that of the male chickens. Lactobacillus and Family XIII UCG-001 were enriched in male chickens, while Eubacterium_nodatum_group, Blautia, unclassified_Anaerovoraceae, Romboutsia, Lachnoclostridium, and norank_Muribaculaceae were enriched in female chickens. Thirty-seven differential metabolites were identified in positive mode and 13 in negative mode, showing sex differences. Sphingomyelin metabolites possessed the strongest association with cecal microbes, while 11β-hydroxytestosterone showed a negative correlation with Blautia. Conclusion These results support the role of sexual dimorphism of the cecal microbiome and metabolome and implicate specific gender factors associated with production performance in chickens.
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Affiliation(s)
| | | | | | | | - Zhong Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China
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Overbeek MF, Rutters F, Nieuwdorp M, Davids M, van Valkengoed I, Galenkamp H, van den Born BJ, Beulens JWJ, Muilwijk M. Plasma sphingolipids mediate the association between gut microbiome composition and type 2 diabetes risk in the HELIUS cohort: a case-cohort study. BMJ Open Diabetes Res Care 2024; 12:e004180. [PMID: 39025794 PMCID: PMC11261679 DOI: 10.1136/bmjdrc-2024-004180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 07/05/2024] [Indexed: 07/20/2024] Open
Abstract
INTRODUCTION The association between the gut microbiome and incident type 2 diabetes (T2D) is potentially partly mediated through sphingolipids, however these possible mediating mechanisms have not been investigated. We examined whether sphingolipids mediate the association between gut microbiome and T2D, using data from the Healthy Life in an Urban Setting study. RESEARCH DESIGN AND METHODS Participants were of Dutch or South-Asian Surinamese ethnicity, aged 18-70 years, and without T2D at baseline. A case-cohort design (subcohort n=176, cases incident T2D n=36) was used. The exposure was measured by 16S rRNA sequencing (gut microbiome) and mediator by targeted metabolomics (sphingolipids). Dimensionality reduction was achieved by principle component analysis and Shannon diversity. Cox regression and procrustes analyses were used to assess the association between gut microbiome and T2D and sphingolipids and T2D, and between gut microbiome and sphingolipids, respectively. Mediation was tested familywise using mediation analysis with permutation testing and Bonferroni correction. RESULTS Our study confirmed associations between gut microbiome and T2D and sphingolipids and T2D. Additionally, we showed that the gut microbiome was associated with sphingolipids. The association between gut microbiome and T2D was partly mediated by a sphingolipid principal component, which represents a dominance of ceramide species over more complex sphingolipids (HR 1.17; 95% CI 1.08 to 1.28; proportional explained 48%), and by Shannon diversity (HR 0.97; 95% CI 0.95 to 0.99; proportional explained 24.8%). CONCLUSIONS These data suggest that sphingolipids mediate the association between microbiome and T2D risk. Future research is needed to confirm observed findings and elucidate causality on a molecular level.
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Affiliation(s)
- Martin F Overbeek
- Epidemiology and Data Science, Amsterdam UMC Locatie VUmc, Amsterdam, The Netherlands
| | - Femke Rutters
- Department of Epidemiology and Data Science, Amsterdam Public Health Research Institute, Amsterdam UMC Location AMC, Amsterdam, The Netherlands
| | - Max Nieuwdorp
- Vascular Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | - Mark Davids
- Internal Medicine, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | | | - Henrike Galenkamp
- Public Health, Amsterdam UMC Locatie AMC, Amsterdam, The Netherlands
| | | | - Joline W J Beulens
- Epidemiology & Data Science, Amsterdam UMC Locatie VUMC, Amsterdam, The Netherlands
| | - Mirthe Muilwijk
- Epidemiology and Data Science, Amsterdam UMC, Amsterdam, The Netherlands
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4
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Ding M, Yan J, Chen Y, Liu J, Chao G, Zhang S. Changes in M6A methylation: A key factor in the vicious cycle of flora -gut aging. Ageing Res Rev 2024; 98:102351. [PMID: 38820855 DOI: 10.1016/j.arr.2024.102351] [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: 12/09/2023] [Revised: 05/16/2024] [Accepted: 05/27/2024] [Indexed: 06/02/2024]
Abstract
The aging process significantly impacts the gastrointestinal tract and various bodily systems, exacerbating age-related diseases. Research suggests a correlation between an imbalance in intestinal flora and gut aging, yet the precise mechanism remains incompletely elucidated. Epigenetic modifications, particularly m6A methylation, play a pivotal role in driving aging and are closely associated with gut aging. Maintaining a healthy balance of intestinal microbes is contingent upon m6A methylation, which is believed to be crucial in the vicious cycle of gut aging and intestinal flora. This article highlights the importance of m6A methylation in the nexus between gut aging and flora. It proposes the potential for targeted m6A methylation to break the vicious cycle of gut aging and flora imbalance, offering novel perspectives on attenuating or reversing gut aging.
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Affiliation(s)
- Menglu Ding
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), Hangzhou, PR China; Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, PR China
| | - Junbin Yan
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), Hangzhou, PR China; Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, PR China
| | - Yuxuan Chen
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), Hangzhou, PR China; Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, PR China
| | - Jinguo Liu
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), Hangzhou, PR China; Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, PR China
| | - Guanqun Chao
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), Hangzhou, PR China; Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, PR China.
| | - Shuo Zhang
- The Second Affiliated Hospital of Zhejiang Chinese Medical University (The Xin Hua Hospital of Zhejiang Province), Hangzhou, PR China; Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, PR China.
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5
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Kuo A, Hla T. Regulation of cellular and systemic sphingolipid homeostasis. Nat Rev Mol Cell Biol 2024:10.1038/s41580-024-00742-y. [PMID: 38890457 DOI: 10.1038/s41580-024-00742-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/30/2024] [Indexed: 06/20/2024]
Abstract
One hundred and fifty years ago, Johann Thudichum described sphingolipids as unusual "Sphinx-like" lipids from the brain. Today, we know that thousands of sphingolipid molecules mediate many essential functions in embryonic development and normal physiology. In addition, sphingolipid metabolism and signalling pathways are dysregulated in a wide range of pathologies, and therapeutic agents that target sphingolipids are now used to treat several human diseases. However, our understanding of sphingolipid regulation at cellular and organismal levels and their functions in developmental, physiological and pathological settings is rudimentary. In this Review, we discuss recent advances in sphingolipid pathways in different organelles, how secreted sphingolipid mediators modulate physiology and disease, progress in sphingolipid-targeted therapeutic and diagnostic research, and the trans-cellular sphingolipid metabolic networks between microbiota and mammals. Advances in sphingolipid biology have led to a deeper understanding of mammalian physiology and may lead to progress in the management of many diseases.
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Affiliation(s)
- Andrew Kuo
- Vascular Biology Program, Boston Children's Hospital, Department of Surgery, Harvard Medical School, Boston, MA, USA
| | - Timothy Hla
- Vascular Biology Program, Boston Children's Hospital, Department of Surgery, Harvard Medical School, Boston, MA, USA.
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Mirretta Barone C, Heaver SL, Gruber L, Zundel F, Vu DL, Ley RE. Spatially resolved lipidomics shows conditional transfer of lipids produced by Bacteroides thetaiotaomicron into the mouse gut. Cell Host Microbe 2024; 32:1025-1036.e5. [PMID: 38795710 DOI: 10.1016/j.chom.2024.04.021] [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: 06/13/2023] [Revised: 03/19/2024] [Accepted: 04/30/2024] [Indexed: 05/28/2024]
Abstract
The extent to which bacterial lipids produced by the gut microbiota penetrate host tissues is unclear. Here, we combined mass spectrometry approaches to identify lipids produced by the human gut symbiont Bacteroides thetaiotaomicron (B. theta) and spatially track these bacterial lipids in the mouse colon. We characterize 130 B. theta lipids by liquid chromatography-tandem mass spectrometry (LC-MS/MS), using wild-type and mutant B. theta strains to confidently identify lipid structures and their interconnected pathways in vitro. Of these, 103 B. theta lipids can be detected and spatially mapped in a single MALDI mass spectrometry imaging run. We map unlabeled bacterial lipids across colon sections of germ-free and specific-pathogen-free (SPF) mice and mice mono-colonized with wild-type or sphingolipid-deficient (BTMUT) B. theta. We observe co-localization of bacterially derived phosphatidic acid with host tissues in BTMUT mice, consistent with lipid penetration into host tissues. These results indicate limited and selective transfer of bacterial lipids to the host.
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Affiliation(s)
- Claudia Mirretta Barone
- Department of Microbiome Science, Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Stacey L Heaver
- Department of Microbiome Science, Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Lars Gruber
- Department of Microbiome Science, Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Fabian Zundel
- Department of Microbiome Science, Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Dai Long Vu
- Mass Spectrometry Facility, Max Planck Institute for Biology Tübingen, Tübingen, Germany.
| | - Ruth E Ley
- Department of Microbiome Science, Max Planck Institute for Biology Tübingen, Tübingen, Germany; Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany.
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Chen Q, Lin F, Li W, Gu X, Chen Y, Su H, Zhang L, Zheng W, Zeng X, Lu X, Wang C, Chen W, Zhang B, Zhang H, Gong M. Distinctive Lipid Characteristics of Colorectal Cancer Revealed through Non-targeted Lipidomics Analysis of Tongue Coating. J Proteome Res 2024; 23:2054-2066. [PMID: 38775738 PMCID: PMC11165570 DOI: 10.1021/acs.jproteome.4c00063] [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: 01/31/2024] [Revised: 04/10/2024] [Accepted: 04/25/2024] [Indexed: 06/13/2024]
Abstract
The metabolites and microbiota in tongue coating display distinct characteristics in certain digestive disorders, yet their relationship with colorectal cancer (CRC) remains unexplored. Here, we employed liquid chromatography coupled with tandem mass spectrometry to analyze the lipid composition of tongue coating using a nontargeted approach in 30 individuals with colorectal adenomas (CRA), 32 with CRC, and 30 healthy controls (HC). We identified 21 tongue coating lipids that effectively distinguished CRC from HC (AUC = 0.89), and 9 lipids that differentiated CRC from CRA (AUC = 0.9). Furthermore, we observed significant alterations in the tongue coating lipid composition in the CRC group compared to HC/CRA groups. As the adenoma-cancer sequence progressed, there was an increase in long-chain unsaturated triglycerides (TG) levels and a decrease in phosphatidylethanolamine plasmalogen (PE-P) levels. Furthermore, we noted a positive correlation between N-acyl ornithine (NAOrn), sphingomyelin (SM), and ceramide phosphoethanolamine (PE-Cer), potentially produced by members of the Bacteroidetes phylum. The levels of inflammatory lipid metabolite 12-HETE showed a decreasing trend with colorectal tumor progression, indicating the potential involvement of tongue coating microbiota and tumor immune regulation in early CRC development. Our findings highlight the potential utility of tongue coating lipid analysis as a noninvasive tool for CRC diagnosis.
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Affiliation(s)
- Qubo Chen
- State
Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University
of Chinese Medicine, Guangzhou 510120, China
- Second
Clinical Medical College, Guangzhou University
of Chinese Medicine, Guangzhou 510120, China
| | - Fengye Lin
- Second
Clinical Medical College, Guangzhou University
of Chinese Medicine, Guangzhou 510120, China
| | - Wanhua Li
- Second
Clinical Medical College, Guangzhou University
of Chinese Medicine, Guangzhou 510120, China
| | - Xiangyu Gu
- Second
Clinical Medical College, Guangzhou University
of Chinese Medicine, Guangzhou 510120, China
| | - Ying Chen
- Second
Clinical Medical College, Guangzhou University
of Chinese Medicine, Guangzhou 510120, China
| | - Hairong Su
- Second
Clinical Medical College, Guangzhou University
of Chinese Medicine, Guangzhou 510120, China
| | - Lu Zhang
- Metabolomics
and Proteomics Technology Platform, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wen Zheng
- Metabolomics
and Proteomics Technology Platform, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xuan Zeng
- State
Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University
of Chinese Medicine, Guangzhou 510120, China
| | - Xinyi Lu
- State
Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University
of Chinese Medicine, Guangzhou 510120, China
| | - Chuyang Wang
- State
Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University
of Chinese Medicine, Guangzhou 510120, China
| | - Weicheng Chen
- State
Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University
of Chinese Medicine, Guangzhou 510120, China
| | - Beiping Zhang
- Department
of Gastroenterology, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University
of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Haiyan Zhang
- Department
of Gastroenterology, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University
of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Meng Gong
- Metabolomics
and Proteomics Technology Platform, West China Hospital, Sichuan University, Chengdu 610041, China
- Institutes
for Systems Genetics, Frontiers Science Center for Disease-related
Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
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8
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Liu X, Cai M, Chen M, Chen J, Zhu T, Wu S, Jia J. Alterations in gut microbiome associated with severity of atopic dermatitis in infants. Australas J Dermatol 2024; 65:328-336. [PMID: 38419203 DOI: 10.1111/ajd.14237] [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: 05/22/2023] [Revised: 02/04/2024] [Accepted: 02/13/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Atopic dermatitis (AD) often arises in infancy, and gut microbial dysbiosis is associated with the development of AD. However, less is known about specific changes in early-life gut microbiome associated with AD and AD severity. This study aims to reveal the gut microbial composition and function profiles associated with the severity of AD in infants. METHODS Sixty-two infants (mean [SD] age, 4.7[1.9] months) with different severities of AD were enrolled and divided into three groups (mild, moderate and severe) according to the Scoring Atopic Dermatitis (SCORAD) index. The profiles of gut microbial composition and function were analysed by sequencing 16S ribosomal RNA amplicons. Quality of life on children and the family was evaluated using published questionnaires. RESULTS Decreased levels of Clostridium sensu stricto, Collinsella and increased level of Parabacteroides presented in the severe AD group compared with the mild AD group after adjusting potential confounders (p < 0.05). There were strong positive correlations between the Scoring Atopic Dermatitis (SCORAD) index and the relative abundance (RA) of Bacteroides and functional pathways for metabolism of sphingolipids and glycosphingolipids (p < 0.05). The SCORAD index was negatively correlated with the RA of Clostridium sensu stricto (p < 0.05), and was also positively correlated with the index of quality of life on children and the family (p < 0.05). CONCLUSION Discrepancies in gut microbial composition and functional pathways were observed in infants with mild-to-severe AD. Alterations in butyrate-producing bacteria (Clostridium sensu stricto), sphingolipid-producing bacteria (Parabacteroides, Bacteroides), and related functional pathways were associated with the severity of AD infants.
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Affiliation(s)
- Xiaoyi Liu
- Department of Dermatology, National Children's Medical Center, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Meiqin Cai
- Department of Clinical Nutrition, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Meiru Chen
- Diprobio(Shang Hai)co., Limited, Shanghai, China
| | - Ji Chen
- Department of Dermatology, National Children's Medical Center, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tingyu Zhu
- Department of Clinical Nutrition, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shiyin Wu
- Department of Clinical Nutrition, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Jia
- Department of Clinical Nutrition, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Health Science and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
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9
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Bao B, Wang Y, Boudreau P, Song X, Wu M, Chen X, Patik I, Tang Y, Ouahed J, Ringel A, Barends J, Wu C, Balskus E, Thiagarajah J, Liu J, Wessels MR, Lencer WI, Kasper DL, An D, Horwitz BH, Snapper SB. Bacterial Sphingolipids Exacerbate Colitis by Inhibiting ILC3-derived IL-22 Production. Cell Mol Gastroenterol Hepatol 2024; 18:101350. [PMID: 38704148 PMCID: PMC11222953 DOI: 10.1016/j.jcmgh.2024.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 04/25/2024] [Accepted: 04/25/2024] [Indexed: 05/06/2024]
Abstract
BACKGROUND & AIMS Gut bacterial sphingolipids, primarily produced by Bacteroidetes, have dual roles as bacterial virulence factors and regulators of the host mucosal immune system, including regulatory T cells and invariant natural killer T cells. Patients with inflammatory bowel disease display altered sphingolipids profiles in fecal samples. However, how bacterial sphingolipids modulate mucosal homeostasis and regulate intestinal inflammation remains unclear. METHODS We used dextran sodium sulfate (DSS)-induced colitis in mice monocolonized with Bacteroides fragilis strains expressing or lacking sphingolipids to assess the influence of bacterial sphingolipids on intestinal inflammation using transcriptional, protein, and cellular analyses. Colonic explant and organoid were used to study the function of bacterial sphingolipids. Host mucosal immune cells and cytokines were profiled and characterized using flow cytometry, enzyme-linked immunosorbent assay, and Western blot, and cytokine function in vivo was investigated by monoclonal antibody injection. RESULTS B fragilis sphingolipids exacerbated intestinal inflammation. Mice monocolonized with B fragilis lacking sphingolipids exhibited less severe DSS-induced colitis. This amelioration of colitis was associated with increased production of interleukin (IL)-22 by ILC3. Mice colonized with B fragilis lacking sphingolipids following DSS treatment showed enhanced epithelial STAT3 activity, intestinal cell proliferation, and antimicrobial peptide production. Protection against DSS colitis associated with B fragilis lacking sphingolipids was reversed on IL22 blockade. Furthermore, bacterial sphingolipids restricted epithelial IL18 production following DSS treatment and interfered with IL22 production by a subset of ILC3 cells expressing both IL18R and major histocompatibility complex class II. CONCLUSIONS B fragilis-derived sphingolipids exacerbate mucosal inflammation by impeding epithelial IL18 expression and concomitantly suppressing the production of IL22 by ILC3 cells.
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Affiliation(s)
- Bin Bao
- Division of Gastroenterology, Hepatology, and Nutrition; Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts; Division of Infectious Diseases, Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts; School of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, Anhui, China.
| | - Youyuan Wang
- Division of Infectious Diseases, Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts; Sun Yat-sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Pavl Boudreau
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts
| | - Xinyang Song
- Department of Immunology, Harvard Medical School, Boston, Massachusetts; Shanghai Institute of Biochemistry and Cell Biology, CAS, Shanghai, China
| | - Meng Wu
- Department of Immunology, Harvard Medical School, Boston, Massachusetts
| | - Xi Chen
- Division of Gastroenterology, Hepatology, and Nutrition; Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Izabel Patik
- Division of Gastroenterology, Hepatology, and Nutrition; Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Ying Tang
- Division of Gastroenterology, Hepatology, and Nutrition; Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Jodie Ouahed
- Division of Gastroenterology, Hepatology, and Nutrition; Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Amit Ringel
- Division of Gastroenterology, Hepatology, and Nutrition; Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Jared Barends
- Division of Gastroenterology, Hepatology, and Nutrition; Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Chuan Wu
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Emily Balskus
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts
| | - Jay Thiagarajah
- Division of Gastroenterology, Hepatology, and Nutrition; Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Jian Liu
- School of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, Anhui, China
| | - Michael R Wessels
- Division of Infectious Diseases, Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Wayne Isaac Lencer
- Division of Gastroenterology, Hepatology, and Nutrition; Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Dennis L Kasper
- Department of Immunology, Harvard Medical School, Boston, Massachusetts
| | - Dingding An
- Division of Infectious Diseases, Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Bruce Harold Horwitz
- Division of Gastroenterology, Hepatology, and Nutrition; Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Scott B Snapper
- Division of Gastroenterology, Hepatology, and Nutrition; Boston Children's Hospital, and Harvard Medical School, Boston, Massachusetts.
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10
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Chen L, Xu R, Zhu J. Lipidome isotope labelling of gut microbes (LILGM): A method of discovering endogenous microbial lipids. Talanta 2024; 271:125730. [PMID: 38310758 DOI: 10.1016/j.talanta.2024.125730] [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: 10/21/2023] [Revised: 01/22/2024] [Accepted: 01/28/2024] [Indexed: 02/06/2024]
Abstract
Lipidomics analysis of gut microbiome has become critical in recent surge of extensive human disease studies that investigate microbiome contributions. However, challenges remain in comprehending the origins of thousands of lipid species produced by the diverse microbes. Here, we proposed the development and utilization of a liquid chromatography-mass spectrometry-based approach, named lipidome isotope labelling of gut microbes (LILGM), which enables confident detection and identification of endogenous gut microbial lipidome via 13C/15N labeling strategy and high-resolution mass spectrometry. Our method leveraged in vitro microbial cultures and stable isotope-labeled 13C and 15N, allowing a reasonable degree of isotope incorporation into microbial lipids over short-term of inoculation. We then systematically detected the mass spectral patterns of 182 labeled lipid species by our in-house data analysis pipeline. Further bioinformatics analyses confidently identified biologically relevant microbial lipids from lipid classes such as diacylglycerols (DGs), fatty acids (FAs), phosphatidylglycerols (PGs), and phosphatidylethanolamines (PEs) that may have profound impacts to human physiology. Our study also demonstrated the application of LILGM by showcasing the confident detection of dysregulated microbial lipids post antibiotic perturbation. The debiased sparse partial correlation analysis provides insights into lipid metabolism intricacies. Overall, our method can provide unambiguous analyses to the endogenous microbial lipids in given biological context, and can also instantly reflect the lipidomic changes of gut microbes in response to environmental factors. We believe our LILGM approach has the potential to provide new body of knowledge by combining promising analytical approaches for sensitive and specific lipid detection to support functional microbiome studies.
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Affiliation(s)
- Li Chen
- Human Nutrition Program, Department of Human Sciences, The Ohio State University, Columbus, OH, 43210, USA; James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA
| | - Rui Xu
- Human Nutrition Program, Department of Human Sciences, The Ohio State University, Columbus, OH, 43210, USA
| | - Jiangjiang Zhu
- Human Nutrition Program, Department of Human Sciences, The Ohio State University, Columbus, OH, 43210, USA; James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, 43210, USA.
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11
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Wajapeyee N, Beamon TC, Gupta R. Roles and therapeutic targeting of ceramide metabolism in cancer. Mol Metab 2024; 83:101936. [PMID: 38599378 PMCID: PMC11031839 DOI: 10.1016/j.molmet.2024.101936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/04/2024] [Accepted: 04/04/2024] [Indexed: 04/12/2024] Open
Abstract
BACKGROUND Ceramides are sphingolipids that act as signaling molecules involved in regulating cellular processes including apoptosis, proliferation, and metabolism. Deregulation of ceramide metabolism contributes to cancer development and progression. Therefore, regulation of ceramide levels in cancer cells is being explored as a new approach for cancer therapy. SCOPE OF THE REVIEW This review discusses the multiple roles of ceramides in cancer cells and strategies to modulate ceramide levels for cancer therapy. Ceramides attenuate cell survival signaling and metabolic pathways, while activating apoptotic mechanisms, making them tumor-suppressive. Approaches to increase ceramide levels in cancer cells include using synthetic analogs, inhibiting ceramide degradation, and activating ceramide synthesis. We also highlight combination therapies such as use of ceramide modulators with chemotherapies, immunotherapies, apoptosis inducers, and anti-angiogenics, which offer synergistic antitumor effects. Additionally, we also describe ongoing clinical trials evaluating ceramide nanoliposomes and analogs. Finally, we discuss the challenges of these therapeutic approaches including the complexity of ceramide metabolism, targeted delivery, cancer heterogeneity, resistance mechanisms, and long-term safety. MAJOR CONCLUSIONS Ceramide-based therapy is a potentially promising approach for cancer therapy. However, overcoming hurdles in pharmacokinetics, specificity, and resistance is needed to optimize its efficacy and safety. This requires comprehensive preclinical/clinical studies into ceramide signaling, formulations, and combination therapies. Ceramide modulation offers opportunities for developing novel cancer treatments, but a deeper understanding of ceramide biology is vital to advance its clinical applications.
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Affiliation(s)
- Narendra Wajapeyee
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL, 35233, USA; O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, 35233, USA.
| | - Teresa Chiyanne Beamon
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL, 35233, USA
| | - Romi Gupta
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL, 35233, USA; O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, 35233, USA.
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12
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Chen Z, Pan Z, Huang C, Zhu X, Li N, Huynh H, Xu J, Huang L, Vaz FM, Liu J, Han Z, Ouyang K. Cardiac lipidomic profiles in mice undergo changes from fetus to adult. Life Sci 2024; 341:122484. [PMID: 38311219 DOI: 10.1016/j.lfs.2024.122484] [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: 10/25/2023] [Revised: 01/20/2024] [Accepted: 01/30/2024] [Indexed: 02/09/2024]
Abstract
AIMS Lipids are essential cellular components with many important biological functions. Disturbed lipid biosynthesis and metabolism has been shown to cause cardiac developmental abnormality and cardiovascular diseases. In this study, we aimed to investigate the composition and the molecular profiles of lipids in mammalian hearts between embryonic and adult stages and uncover the underlying links between lipid and cardiac development and maturation. MATERIALS AND METHODS We collected mouse hearts at the embryonic day 11.5 (E11.5), E15.5, and the age of 2 months, 4 months and 10 months, and performed lipidomic analysis to determine the changes of the composition, molecular species, and relative abundance of cardiac lipids between embryonic and adult stages. Additionally, we also performed the electronic microscopy and RNA sequencing in both embryonic and adult mouse hearts. KEY FINDINGS The relative abundances of certain phospholipids and sphingolipids including cardiolipin, phosphatidylglycerol, phosphatidylethanolamine, and ceramide, are different between embryonic and adult hearts. Such lipidomic changes are accompanied with increased densities of mitochondrial membranes and elevated expression of genes related to mitochondrial formation in adult mouse hearts. We also analyzed individual molecular species of phospholipids and sphingolipids, and revealed that the composition and distribution of lipid molecular species in hearts also change with development. SIGNIFICANCE Our study provides not only a lipidomic view of mammalian hearts when developing from the embryonic to the adult stage, but also a potential pool of lipid indicators for cardiac cell development and maturation.
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Affiliation(s)
- Ze'e Chen
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong Province, China
| | - Zhixiang Pan
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong Province, China
| | - Can Huang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong Province, China
| | - Xiangbin Zhu
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong Province, China
| | - Na Li
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong Province, China
| | - Helen Huynh
- Department of Medicine, School of Medicine, University of California San Diego, La Jolla, CA, United States of America
| | - Junjie Xu
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong Province, China
| | - Lei Huang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong Province, China
| | - Frédéric M Vaz
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Departments of Clinical Chemistry and Pediatrics, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Core Facility Metabolomics, Amsterdam UMC, the Netherlands
| | - Jie Liu
- Department of Pathophysiology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Zhen Han
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong Province, China.
| | - Kunfu Ouyang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong Province, China.
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13
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Seal A, Hughes M, Wei F, Pugazhendhi AS, Ngo C, Ruiz J, Schwartzman JD, Coathup MJ. Sphingolipid-Induced Bone Regulation and Its Emerging Role in Dysfunction Due to Disease and Infection. Int J Mol Sci 2024; 25:3024. [PMID: 38474268 DOI: 10.3390/ijms25053024] [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: 02/09/2024] [Revised: 03/02/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
The human skeleton is a metabolically active system that is constantly regenerating via the tightly regulated and highly coordinated processes of bone resorption and formation. Emerging evidence reveals fascinating new insights into the role of sphingolipids, including sphingomyelin, sphingosine, ceramide, and sphingosine-1-phosphate, in bone homeostasis. Sphingolipids are a major class of highly bioactive lipids able to activate distinct protein targets including, lipases, phosphatases, and kinases, thereby conferring distinct cellular functions beyond energy metabolism. Lipids are known to contribute to the progression of chronic inflammation, and notably, an increase in bone marrow adiposity parallel to elevated bone loss is observed in most pathological bone conditions, including aging, rheumatoid arthritis, osteoarthritis, and osteomyelitis. Of the numerous classes of lipids that form, sphingolipids are considered among the most deleterious. This review highlights the important primary role of sphingolipids in bone homeostasis and how dysregulation of these bioactive metabolites appears central to many chronic bone-related diseases. Further, their contribution to the invasion, virulence, and colonization of both viral and bacterial host cell infections is also discussed. Many unmet clinical needs remain, and data to date suggest the future use of sphingolipid-targeted therapy to regulate bone dysfunction due to a variety of diseases or infection are highly promising. However, deciphering the biochemical and molecular mechanisms of this diverse and extremely complex sphingolipidome, both in terms of bone health and disease, is considered the next frontier in the field.
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Affiliation(s)
- Anouska Seal
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
| | - Megan Hughes
- School of Biosciences, Cardiff University, Cardiff CF10 3AT, UK
| | - Fei Wei
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Abinaya S Pugazhendhi
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Christopher Ngo
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Jonathan Ruiz
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | | | - Melanie J Coathup
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
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14
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Wang L, Zhang X, Li L, Bao J, Lin F, Zhu X. A key sphingolipid pathway gene, MoDES1, regulates conidiation, virulence and plasma membrane tension in Magnaporthe oryzae. Microbiol Res 2024; 279:127554. [PMID: 38056173 DOI: 10.1016/j.micres.2023.127554] [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: 09/05/2023] [Revised: 11/08/2023] [Accepted: 11/20/2023] [Indexed: 12/08/2023]
Abstract
Rice blast, caused by the plant pathogenic fungus Magnaporthe oryzae, is a destructive disaster all over the earth that causes enormous losses in crop production. Sphingolipid, an important biological cell membrane lipid, is an essential structural component in the plasma membrane (PM) and has several biological functions, including cell mitosis, apoptosis, stress resistance, and signal transduction. Previous studies have suggested that sphingolipid and its derivatives play essential roles in the virulence of plant pathogenic fungi. However, the functions of sphingolipid biosynthesis-related proteins are not fully understood. In this article, we identified a key sphingolipid synthesis enzyme, MoDes1, and found that it is engaged in cell development and pathogenicity in M. oryzae. Deletion of MoDES1 gave rise to pleiotropic defects in vegetative growth, conidiation, plant penetration, and pathogenicity. MoDes1 is also required for lipid homeostasis and participates in the cell wall integrity (CWI) and Osm1-MAPK pathways. Notably, our results showed that there is negative feedback in the TORC2 signaling pathway to compensate for the decreased sphingolipid level due to the knockout of MoDES1 by regulating the phosphorylated Ypk1 level and PM tension. Furthermore, protein structure building has shown that MoDes1 is a potential drug target. These findings further refine the function of Des1 and deepen our understanding of the sphingolipid biosynthesis pathway in M. oryzae, laying a foundation for developing novel and specific drugs for rice blast control.
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Affiliation(s)
- Lei Wang
- The College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forest University, Hangzhou 311300, China
| | - Xiaozhi Zhang
- The College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forest University, Hangzhou 311300, China
| | - Lin Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jiandong Bao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Fucheng Lin
- The College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forest University, Hangzhou 311300, China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; Xianghu Laboratory, Hangzhou, 311231, China.
| | - Xueming Zhu
- The College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forest University, Hangzhou 311300, China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
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15
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Losol P, Wolska M, Wypych TP, Yao L, O'Mahony L, Sokolowska M. A cross talk between microbial metabolites and host immunity: Its relevance for allergic diseases. Clin Transl Allergy 2024; 14:e12339. [PMID: 38342758 PMCID: PMC10859320 DOI: 10.1002/clt2.12339] [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: 09/30/2023] [Revised: 01/07/2024] [Accepted: 01/22/2024] [Indexed: 02/13/2024] Open
Abstract
BACKGROUND Allergic diseases, including respiratory and food allergies, as well as allergic skin conditions have surged in prevalence in recent decades. In allergic diseases, the gut microbiome is dysbiotic, with reduced diversity of beneficial bacteria and increased abundance of potential pathogens. Research findings suggest that the microbiome, which is highly influenced by environmental and dietary factors, plays a central role in the development, progression, and severity of allergic diseases. The microbiome generates metabolites, which can regulate many of the host's cellular metabolic processes and host immune responses. AIMS AND METHODS Our goal is to provide a narrative and comprehensive literature review of the mechanisms through which microbial metabolites regulate host immune function and immune metabolism both in homeostasis and in the context of allergic diseases. RESULTS AND DISCUSSION We describe key microbial metabolites such as short-chain fatty acids, amino acids, bile acids and polyamines, elucidating their mechanisms of action, cellular targets and their roles in regulating metabolism within innate and adaptive immune cells. Furthermore, we characterize the role of bacterial metabolites in the pathogenesis of allergic diseases including allergic asthma, atopic dermatitis and food allergy. CONCLUSION Future research efforts should focus on investigating the physiological functions of microbiota-derived metabolites to help develop new diagnostic and therapeutic interventions for allergic diseases.
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Affiliation(s)
- Purevsuren Losol
- Department of Internal MedicineSeoul National University Bundang HospitalSeongnamKorea
- Department of Molecular Biology and GeneticsSchool of BiomedicineMongolian National University of Medical SciencesUlaanbaatarMongolia
| | - Magdalena Wolska
- Laboratory of Host‐Microbiota InteractionsNencki Institute of Experimental BiologyPolish Academy of SciencesWarsawPoland
| | - Tomasz P. Wypych
- Laboratory of Host‐Microbiota InteractionsNencki Institute of Experimental BiologyPolish Academy of SciencesWarsawPoland
| | - Lu Yao
- APC Microbiome IrelandUniversity College CorkCorkIreland
- Department of MedicineUniversity College CorkCorkIreland
- School of MicrobiologyUniversity College CorkCorkIreland
| | - Liam O'Mahony
- APC Microbiome IrelandUniversity College CorkCorkIreland
- Department of MedicineUniversity College CorkCorkIreland
- School of MicrobiologyUniversity College CorkCorkIreland
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZurichDavosSwitzerland
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16
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Yang C, Wang LY, Li YK, Lin JT, Chen DK, Yao N. Arabidopsis Leaf Chloroplasts Have a Specific Sphingolipidome. PLANTS (BASEL, SWITZERLAND) 2024; 13:299. [PMID: 38276756 PMCID: PMC10818918 DOI: 10.3390/plants13020299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024]
Abstract
Sphingolipids are ubiquitous in eukaryotes and certain prokaryotes, where they serve as vital components of biological membranes and bioactive molecules. Chloroplasts have complex membrane structures that play crucial roles in photosynthesis, but their specific sphingolipidome remains unreported. In this study, we used liquid chromatography-mass spectrometry (LC-MS/MS) to analyze the sphingolipidome of purified Arabidopsis thaliana chloroplasts. We detected 92 chloroplast sphingolipids. The chloroplast sphingolipidome differed from total leaf (TL) samples, with a higher content of free long-chain bases and hydroxyceramides and a greater proportion of complex sphingolipids with 16C fatty acid (FA) forms. Notably, chloroplast glucosylceramides were predominantly the d18:1 h16:0 and t18:1 h16:0 forms rather than the 24C FA form found in TL and other cellular structures. Comparing the sphingolipidomes of different cellular structures underscores the inhomogeneity of the intracellular distribution of sphingolipids. This provides a robust reference for further elucidating the function of sphingolipids in plant cells.
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Affiliation(s)
| | | | | | | | | | - Nan Yao
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; (C.Y.); (L.-Y.W.); (J.-T.L.); (D.-K.C.)
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17
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Russo E, Bellando-Randone S, Carboni D, Fioretto BS, Romano E, Baldi S, El Aoufy K, Ramazzotti M, Rosa I, Lepri G, Di Gloria L, Pallecchi M, Bruni C, Melchiorre D, Guiducci S, Manetti M, Bartolucci GL, Matucci-Cerinic M, Amedei A. The differential crosstalk of the skin-gut microbiome axis as a new emerging actor in systemic sclerosis. Rheumatology (Oxford) 2024; 63:226-234. [PMID: 37154625 DOI: 10.1093/rheumatology/kead208] [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: 09/05/2022] [Revised: 03/29/2023] [Accepted: 04/23/2023] [Indexed: 05/10/2023] Open
Abstract
OBJECTIVES We characterized the microbiota in SSc, focusing on the skin-oral-gut axis and the serum and faecal free fatty acid (FFA) profile. METHODS Twenty-five SSc patients with ACA or anti-Scl70 autoantibodies were enrolled. The microbiota of faecal, saliva and superficial epidermal samples was assessed through next-generation sequencing analysis. GC-MS was used to quantify faecal and serum FFAs. Gastrointestinal symptoms were investigated with the University of California Los Angeles Scleroderma Clinical Trial Consortium Gastrointestinal Tract Instrument (UCLA GIT-2.0) questionnaire. RESULTS The ACA+ and anti-Scl70+ groups displayed different cutaneous and faecal microbiota profiles. The classes of cutaneous Sphingobacteriia and Alphaproteobacteria, the faecal phylum Lentisphaerae, the levels of the classes Lentisphaeria and Opitutae, and the genus NA-Acidaminococcaceae were significantly higher in faecal samples from the ACA+ patients than in samples from the anti-Scl70+ patients. The cutaneous Sphingobacteria and the faecal Lentisphaerae were significantly correlated (rho = 0.42; P = 0.03). A significant increase in faecal propionic acid was observed in ACA+ patients. Moreover, all levels of faecal medium-chain FFAs and hexanoic acids were significantly higher in the ACA+ group than in the anti-Scl70+ group (P < 0.05 and P < 0.001, respectively). In the ACA+ group, the analysis of the serum FFA levels showed an increasing trend in valeric acid. CONCLUSION Different microbiota signatures and FFA profiles were found for the two groups of patients. Despite being in different body districts, the cutaneous Sphingobacteria and faecal Lentisphaerae appear interdependent.
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Affiliation(s)
- Edda Russo
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Silvia Bellando-Randone
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
- Division of Rheumatology, Scleroderma Unit, AOU Careggi, Florence, Italy
| | - Davide Carboni
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
- Division of Rheumatology, Scleroderma Unit, AOU Careggi, Florence, Italy
| | | | - Eloisa Romano
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Simone Baldi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Khadija El Aoufy
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Matteo Ramazzotti
- Department of Biomedical, Experimental and Clinical Science "Mario Serio", University of Florence, Florence, Italy
| | - Irene Rosa
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Gemma Lepri
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
- Division of Rheumatology, Scleroderma Unit, AOU Careggi, Florence, Italy
| | - Leandro Di Gloria
- Department of Biomedical, Experimental and Clinical Science "Mario Serio", University of Florence, Florence, Italy
| | - Marco Pallecchi
- Department of Neurosciences, Psychology, Drug Research and Child Health, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Florence, Italy
| | - Cosimo Bruni
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
- Division of Rheumatology, Scleroderma Unit, AOU Careggi, Florence, Italy
- Rheumatology, University Hospital of Zürich, Zürich, Switzerland
| | - Daniela Melchiorre
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Serena Guiducci
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Mirko Manetti
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Gian Luca Bartolucci
- Department of Neurosciences, Psychology, Drug Research and Child Health, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Florence, Italy
| | - Marco Matucci-Cerinic
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
- Division of Rheumatology, Scleroderma Unit, AOU Careggi, Florence, Italy
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, San Raffaele Hospital, Milan, Italy
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
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18
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Zhang H, Xie Y, Cao F, Song X. Gut microbiota-derived fatty acid and sterol metabolites: biotransformation and immunomodulatory functions. Gut Microbes 2024; 16:2382336. [PMID: 39046079 PMCID: PMC11271093 DOI: 10.1080/19490976.2024.2382336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 05/26/2024] [Accepted: 07/16/2024] [Indexed: 07/25/2024] Open
Abstract
Commensal microorganisms in the human gut produce numerous metabolites by using small molecules derived from the host or diet as precursors. Host or dietary lipid molecules are involved in energy metabolism and maintaining the structural integrity of cell membranes. Notably, gut microbes can convert these lipids into bioactive signaling molecules through their biotransformation and synthesis pathways. These microbiota-derived lipid metabolites can affect host physiology by influencing the body's immune and metabolic processes. This review aims to summarize recent advances in the microbial transformation and host immunomodulatory functions of these lipid metabolites, with a special focus on fatty acids and steroids produced by our gut microbiota.
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Affiliation(s)
- Haohao Zhang
- Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Yadong Xie
- Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Fei Cao
- Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Xinyang Song
- Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
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19
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Fohmann I, Weinmann A, Schumacher F, Peters S, Prell A, Weigel C, Spiegel S, Kleuser B, Schubert-Unkmeir A. Sphingosine kinase 1/S1P receptor signaling axis is essential for cellular uptake of Neisseria meningitidis in brain endothelial cells. PLoS Pathog 2023; 19:e1011842. [PMID: 38033162 PMCID: PMC10715668 DOI: 10.1371/journal.ppat.1011842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 12/12/2023] [Accepted: 11/18/2023] [Indexed: 12/02/2023] Open
Abstract
Invasion of brain endothelial cells (BECs) is central to the pathogenicity of Neisseria meningitidis infection. Here, we established a key role for the bioactive sphingolipid sphingosine-1-phosphate (S1P) and S1P receptor (S1PR) 2 in the uptake process. Quantitative sphingolipidome analyses of BECs infected with N. meningitidis revealed elevated S1P levels, which could be attributed to enhanced expression of the enzyme sphingosine kinase 1 and its activity. Increased activity was dependent on the interaction of meningococcal type IV pilus with the endothelial receptor CD147. Concurrently, infection led to increased expression of the S1PR2. Blocking S1PR2 signaling impaired epidermal growth factor receptor (EGFR) phosphorylation, which has been shown to be involved in cytoskeletal remodeling and bacterial endocytosis. Strikingly, targeting S1PR1 or S1PR3 also interfered with bacterial uptake. Collectively, our data support a critical role of the SphK/S1P/S1PR axis in the invasion of N. meningitidis into BECs, defining a potential target for adjuvant therapy.
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Affiliation(s)
- Ingo Fohmann
- Institute for Hygiene and Microbiology, University of Würzburg, Würzburg, Germany
| | - Alina Weinmann
- Institute for Hygiene and Microbiology, University of Würzburg, Würzburg, Germany
| | - Fabian Schumacher
- Institute of Pharmacy, Pharmacology and Toxicology, Freie Universität Berlin, Berlin, Germany
| | - Simon Peters
- Institute for Hygiene and Microbiology, University of Würzburg, Würzburg, Germany
| | - Agata Prell
- Institute of Pharmacy, Pharmacology and Toxicology, Freie Universität Berlin, Berlin, Germany
| | - Cynthia Weigel
- Department of Biochemistry and Molecular Biology and the Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Virginia, United States of America
| | - Sarah Spiegel
- Department of Biochemistry and Molecular Biology and the Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Virginia, United States of America
| | - Burkhard Kleuser
- Institute of Pharmacy, Pharmacology and Toxicology, Freie Universität Berlin, Berlin, Germany
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20
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Li Y, Chaurasia B, Rahman MM, Kaddai V, Maschek JA, Berg JA, Wilkerson JL, Mahmassani ZS, Cox J, Wei P, Meikle PJ, Atkinson D, Wang L, Poss AM, Playdon MC, Tippetts TS, Mousa EM, Nittayaboon K, Anandh Babu PV, Drummond MJ, Clevers H, Shayman JA, Hirabayashi Y, Holland WL, Rutter J, Edgar BA, Summers SA. Ceramides Increase Fatty Acid Utilization in Intestinal Progenitors to Enhance Stemness and Increase Tumor Risk. Gastroenterology 2023; 165:1136-1150. [PMID: 37541526 PMCID: PMC10592225 DOI: 10.1053/j.gastro.2023.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 07/11/2023] [Accepted: 07/12/2023] [Indexed: 08/06/2023]
Abstract
BACKGROUND & AIMS Cancers of the alimentary tract, including esophageal adenocarcinomas, colorectal cancers, and cancers of the gastric cardia, are common comorbidities of obesity. Prolonged, excessive delivery of macronutrients to the cells lining the gut can increase one's risk for these cancers by inducing imbalances in the rate of intestinal stem cell proliferation vs differentiation, which can produce polyps and other aberrant growths. We investigated whether ceramides, which are sphingolipids that serve as a signal of nutritional excess, alter stem cell behaviors to influence cancer risk. METHODS We profiled sphingolipids and sphingolipid-synthesizing enzymes in human adenomas and tumors. Thereafter, we manipulated expression of sphingolipid-producing enzymes, including serine palmitoyltransferase (SPT), in intestinal progenitors of mice, cultured organoids, and Drosophila to discern whether sphingolipids altered stem cell proliferation and metabolism. RESULTS SPT, which diverts dietary fatty acids and amino acids into the biosynthetic pathway that produces ceramides and other sphingolipids, is a critical modulator of intestinal stem cell homeostasis. SPT and other enzymes in the sphingolipid biosynthesis pathway are up-regulated in human intestinal adenomas. They produce ceramides, which serve as prostemness signals that stimulate peroxisome-proliferator activated receptor-α and induce fatty acid binding protein-1. These actions lead to increased lipid utilization and enhanced proliferation of intestinal progenitors. CONCLUSIONS Ceramides serve as critical links between dietary macronutrients, epithelial regeneration, and cancer risk.
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Affiliation(s)
- Ying Li
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah
| | - Bhagirath Chaurasia
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah; Division of Endocrinology, Department of Internal Medicine, Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, Iowa.
| | - M Mahidur Rahman
- Huntsman Cancer Institute and Department of Oncological Sciences, University of Utah, Salt Lake City, Utah
| | - Vincent Kaddai
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah
| | - J Alan Maschek
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah
| | - Jordan A Berg
- Department of Biochemistry, University of Utah, Salt Lake City, Utah
| | - Joseph L Wilkerson
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah
| | - Ziad S Mahmassani
- Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, Utah
| | - James Cox
- Department of Biochemistry, University of Utah, Salt Lake City, Utah
| | - Peng Wei
- Department of Biochemistry, University of Utah, Salt Lake City, Utah
| | - Peter J Meikle
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Donald Atkinson
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah
| | - Liping Wang
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah
| | - Annelise M Poss
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah
| | - Mary C Playdon
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah
| | - Trevor S Tippetts
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah
| | - Esraa M Mousa
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah; Faculty of Science, Tanta University, Tanta, Egypt
| | - Kesara Nittayaboon
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah; Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand
| | - Pon Velayutham Anandh Babu
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah
| | - Micah J Drummond
- Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, Utah
| | - Hans Clevers
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences, Utrecht, The Netherlands; Oncode Institute, Utrecht, The Netherlands; Princess Maxima Center (PMC) for Pediatric Oncology, Utrecht, The Netherlands
| | - James A Shayman
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Yoshio Hirabayashi
- Cellular Informatics Laboratory, RIKEN Cluster for Pioneering Research, RIKEN, Wako-shi, Saitama Japan
| | - William L Holland
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah
| | - Jared Rutter
- Department of Biochemistry, University of Utah, Salt Lake City, Utah; Howard Hughes Medical Institute, Salt Lake City, Utah
| | - Bruce A Edgar
- Huntsman Cancer Institute and Department of Oncological Sciences, University of Utah, Salt Lake City, Utah
| | - Scott A Summers
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, Utah.
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21
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Bai X, Ya R, Tang X, Cai M. Role and interaction of bacterial sphingolipids in human health. Front Microbiol 2023; 14:1289819. [PMID: 37937219 PMCID: PMC10626005 DOI: 10.3389/fmicb.2023.1289819] [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: 09/06/2023] [Accepted: 10/09/2023] [Indexed: 11/09/2023] Open
Abstract
Sphingolipids, present in both higher animals and prokaryotes, involving in cell differentiation, pathogenesis and apoptosis in human physiological health. With increasing attention on the gut microbiome and its impact on wellbeing, there is a renewed focus on exploring bacterial sphingolipids. This review aims to consolidate the current understanding of bacterial sphingolipids and their impact on host health. Compared to mammalian sphingolipids, bacterial sphingolipids are characterized by odd chain lengths due to the presence of branched alkyl chains. Additionally, intestinal microbial sphingolipids can migrate from the gut to various host organs, affecting the immune system and metabolism. Furthermore, the intricate interplay between dietary sphingolipids and the gut microbiota is explored, shedding light on their complex relationship. Despite limited knowledge in this area, this review aims to raise awareness about the importance of bacterial sphingolipids and further our understanding of more uncharacterized bacterial sphingolipids and their significant role in maintaining host health.
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Affiliation(s)
- Xiaoye Bai
- School of Medicine, Sun Yat-sen University, Shenzhen, China
- Shenzhen Bay Laboratory, Institute of Chemical Biology, Shenzhen, China
| | - Ru Ya
- Inner Mongolia Academy of Science and Technology, Hohhot, China
| | - Xiaoyu Tang
- Shenzhen Bay Laboratory, Institute of Chemical Biology, Shenzhen, China
| | - Mingwei Cai
- Shenzhen Bay Laboratory, Institute of Chemical Biology, Shenzhen, China
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22
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Álvarez C, Jiménez-Ríos L, Iniesta-Pallarés M, Jurado-Flores A, Molina-Heredia FP, Ng CKY, Mariscal V. Symbiosis between cyanobacteria and plants: from molecular studies to agronomic applications. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:6145-6157. [PMID: 37422707 PMCID: PMC10575698 DOI: 10.1093/jxb/erad261] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 07/06/2023] [Indexed: 07/10/2023]
Abstract
Nitrogen-fixing cyanobacteria from the order Nostocales are able to establish symbiotic relationships with diverse plant species. They are promiscuous symbionts, as the same strain of cyanobacterium is able to form symbiotic biological nitrogen-fixing relationships with different plants species. This review will focus on the different types of cyanobacterial-plant associations, both endophytic and epiphytic, and provide insights from a structural viewpoint, as well as our current understanding of the mechanisms involved in the symbiotic crosstalk. In all these symbioses, the benefit for the plant is clear; it obtains from the cyanobacterium fixed nitrogen and other bioactive compounds, such as phytohormones, polysaccharides, siderophores, or vitamins, leading to enhanced plant growth and productivity. Additionally, there is increasing use of different cyanobacterial species as bio-inoculants for biological nitrogen fixation to improve soil fertility and crop production, thus providing an eco-friendly, alternative, and sustainable approach to reduce the over-reliance on synthetic chemical fertilizers.
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Affiliation(s)
- Consolación Álvarez
- Instituto de Bioquímica Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain
| | - Lucía Jiménez-Ríos
- Instituto de Bioquímica Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain
| | - Macarena Iniesta-Pallarés
- Instituto de Bioquímica Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain
| | - Ana Jurado-Flores
- Instituto de Bioquímica Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain
| | - Fernando P Molina-Heredia
- Instituto de Bioquímica Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain
| | - Carl K Y Ng
- UCD School of Biology and Environmental Science, University College Dublin, Belfield, Dublin, Ireland
- UCD Centre for Plant Science, University College Dublin, Belfield, Dublin, Ireland
- UCD Earth Institute, University College Dublin, Belfield, Dublin, Ireland
| | - Vicente Mariscal
- Instituto de Bioquímica Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain
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23
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Zhao Y, Xu J, Zhao C, Bao L, Wu K, Feng L, Sun H, Shang S, Hu X, Sun Q, Fu Y. Phytosphingosine alleviates Staphylococcus aureus-induced mastitis by inhibiting inflammatory responses and improving the blood-milk barrier in mice. Microb Pathog 2023; 182:106225. [PMID: 37419220 DOI: 10.1016/j.micpath.2023.106225] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/02/2023] [Accepted: 07/02/2023] [Indexed: 07/09/2023]
Abstract
Mastitis is one of the common diseases in dairy cows which threatens the health of cows and impacts on economic benefits seriously. Recent studies have been showed that Subacute Ruminal Acidosis (SARA) increased the susceptibility of cow mastitis. SARA leads the disturbance of the rumen microbiota, and the rumen bacterial disordered community is an important endogenous factor of cow mastitis. That is to say, cows which suffer from SARA have a disordered rumen microbiota, a prolonged decline in ruminal PH and a high level of lipopolysaccharide (LPS) in the rumen, blood. Therefore, ruminal metabolism is closely related to the rumen microbiota. However, the specific mechanism of SARA and mastitis still not clear. We found an intestinal metabolite according to the metabonomics, which is correlated to inflammation. Phytophingosine (PS), a product from rumen fluid and milk of the cows which suffer from SARA and mastitis. It has the effect of killing bacteria and anti-inflammatory. Emerging evidences indicate that PS can alleviate inflammatory diseases. However, how PS affects mastitis is largely unknown. In this study, we explored the concrete role of PS on Staphylococcus aureus (S. aureus) -induced mastitis in mice. We found that PS obviously decreased the level of the proinflammatory cytokines. Meanwhile, PS also significantly relieved the mammary gland inflammation caused by S. aureus and restored the function of the blood-milk barrier. Here, we showed that PS increased the expression of the classic Tight-junctions (TJs) proteins including ZO-1, Occludin and Claudin-3. Moreover, PS improves S. aureus-induced mastitis by inhibiting the activation of the NF-κB and NLRP3 signaling pathways. These data indicated that PS relieved S. aureus-induced mastitis effectively. This also provides a reference for exploring the correlation between the intestinal metabolism and inflammation.
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Affiliation(s)
- Yihong Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, China
| | - Jiawen Xu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, China
| | - Caijun Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, China
| | - Lijuan Bao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, China
| | - Keyi Wu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, China
| | - Lianjun Feng
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, China
| | - Hao Sun
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, China
| | - Shan Shang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, China
| | - Xiaoyu Hu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, China
| | - Qingsong Sun
- Key Lab of Preventive Veterinary Medicine in Jilin Province, College of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin, 132101, China.
| | - Yunhe Fu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, China.
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24
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Spanos F, Deleidi M. Glycolipids in Parkinson's disease: beyond neuronal function. FEBS Open Bio 2023; 13:1558-1579. [PMID: 37219461 PMCID: PMC10476577 DOI: 10.1002/2211-5463.13651] [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: 03/13/2023] [Revised: 05/10/2023] [Accepted: 05/22/2023] [Indexed: 05/24/2023] Open
Abstract
Glycolipid balance is key to normal body function, and its alteration can lead to a variety of diseases involving multiple organs and tissues. Glycolipid disturbances are also involved in Parkinson's disease (PD) pathogenesis and aging. Increasing evidence suggests that glycolipids affect cellular functions beyond the brain, including the peripheral immune system, intestinal barrier, and immunity. Hence, the interplay between aging, genetic predisposition, and environmental exposures could initiate systemic and local glycolipid changes that lead to inflammatory reactions and neuronal dysfunction. In this review, we discuss recent advances in the link between glycolipid metabolism and immune function and how these metabolic changes can exacerbate immunological contributions to neurodegenerative diseases, with a focus on PD. Further understanding of the cellular and molecular mechanisms that control glycolipid pathways and their impact on both peripheral tissues and the brain will help unravel how glycolipids shape immune and nervous system communication and the development of novel drugs to prevent PD and promote healthy aging.
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Affiliation(s)
- Fokion Spanos
- Institut Imagine, INSERM UMR1163Paris Cité UniversityFrance
- Aligning Science Across Parkinson's (ASAP) Collaborative Research NetworkChevy ChaseMDUSA
| | - Michela Deleidi
- Institut Imagine, INSERM UMR1163Paris Cité UniversityFrance
- Aligning Science Across Parkinson's (ASAP) Collaborative Research NetworkChevy ChaseMDUSA
- Department of Neurodegenerative Diseases, Center of Neurology, Hertie Institute for Clinical Brain ResearchUniversity of TübingenGermany
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25
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Bista PK, Pillai D, Narayanan SK. Outer-Membrane Vesicles of Fusobacterium necrophorum: A Proteomic, Lipidomic, and Functional Characterization. Microorganisms 2023; 11:2082. [PMID: 37630642 PMCID: PMC10458137 DOI: 10.3390/microorganisms11082082] [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: 05/18/2023] [Revised: 08/10/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Outer-membrane vesicles (OMVs) are extruded nanostructures shed by Gram-negative bacteria, containing periplasmic contents, and often including virulence factors with immunogenic properties. To assess their potential for use in vaccine development, we purified OMVs from the Fusobacterium necrophorum subspecies necrophorum, an opportunistic necrotic infection-causing pathogen, and characterized these structures using proteomics, lipid-profiling analyses, and cytotoxicity assays. A proteomic analysis of density-gradient-purified F. necrophorum OMVs identified 342 proteins, a large proportion of which were outer-membrane proteins (OMPs), followed by cytoplasmic proteins, based on a subcellular-localization-prediction analysis. The OMPs and toxins were among the proteins with the highest intensity identified, including the 43-kDa-OMP-, OmpA-, and OmpH-family proteins, the cell-surface protein, the FadA adhesin protein, the leukotoxin-LktA-family filamentous adhesin, the N-terminal domain of hemagglutinin, and the OMP transport protein and assembly factor. A Western blot analysis confirmed the presence of several OMPs and toxins in the F. necrophorum OMVs. The lipid-profiling analysis revealed phospholipids, sphingolipids, and acetylcarnitine as the main lipid contents of OMVs. The lactate-dehydrogenase-cytotoxicity assays showed that the OMVs had a high degree of cytotoxicity against a bovine B-lymphocyte cell line (BL-3 cells). Thus, our data suggest the need for further studies to evaluate the ability of OMVs to induce immune responses and assess their vaccine potential in vivo.
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Affiliation(s)
- Prabha K. Bista
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN 47907, USA; (P.K.B.); (D.P.)
| | - Deepti Pillai
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN 47907, USA; (P.K.B.); (D.P.)
- Indiana Animal Disease and Diagnostic Laboratory, Purdue University, West Lafayette, IN 47907, USA
| | - Sanjeev K. Narayanan
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN 47907, USA; (P.K.B.); (D.P.)
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26
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Doane MP, Reed MB, McKerral J, Farias Oliveira Lima L, Morris M, Goodman AZ, Johri S, Papudeshi B, Dillon T, Turnlund AC, Peterson M, Mora M, de la Parra Venegas R, Pillans R, Rohner CA, Pierce SJ, Legaspi CG, Araujo G, Ramirez-Macias D, Edwards RA, Dinsdale EA. Emergent community architecture despite distinct diversity in the global whale shark (Rhincodon typus) epidermal microbiome. Sci Rep 2023; 13:12747. [PMID: 37550406 PMCID: PMC10406844 DOI: 10.1038/s41598-023-39184-5] [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: 10/18/2022] [Accepted: 07/20/2023] [Indexed: 08/09/2023] Open
Abstract
Microbiomes confer beneficial physiological traits to their host, but microbial diversity is inherently variable, challenging the relationship between microbes and their contribution to host health. Here, we compare the diversity and architectural complexity of the epidermal microbiome from 74 individual whale sharks (Rhincodon typus) across five aggregations globally to determine if network properties may be more indicative of the microbiome-host relationship. On the premise that microbes are expected to exhibit biogeographic patterns globally and that distantly related microbial groups can perform similar functions, we hypothesized that microbiome co-occurrence patterns would occur independently of diversity trends and that keystone microbes would vary across locations. We found that whale shark aggregation was the most important factor in discriminating taxonomic diversity patterns. Further, microbiome network architecture was similar across all aggregations, with degree distributions matching Erdos-Renyi-type networks. The microbiome-derived networks, however, display modularity indicating a definitive microbiome structure on the epidermis of whale sharks. In addition, whale sharks hosted 35 high-quality metagenome assembled genomes (MAGs) of which 25 were present from all sample locations, termed the abundant 'core'. Two main MAG groups formed, defined here as Ecogroup 1 and 2, based on the number of genes present in metabolic pathways, suggesting there are at least two important metabolic niches within the whale shark microbiome. Therefore, while variability in microbiome diversity is high, network structure and core taxa are inherent characteristics of the epidermal microbiome in whale sharks. We suggest the host-microbiome and microbe-microbe interactions that drive the self-assembly of the microbiome help support a functionally redundant abundant core and that network characteristics should be considered when linking microbiomes with host health.
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Affiliation(s)
| | - Michael B Reed
- North Carolina Agricultural and Technical State University, Greensboro, NC, USA
| | | | | | - Megan Morris
- Lawrence Livermore National Laboratory, Livermore, CA, USA
| | | | - Shaili Johri
- Hopkins Marine Station, Department of Biology, Stanford University, Pacific Grove, CA, USA
| | | | | | - Abigail C Turnlund
- Australian Centre for Ecogenomics, University of Queensland, St Lucia, QLD, Australia
| | | | - Maria Mora
- San Diego State University, San Diego, CA, USA
| | | | | | | | | | | | - Gonzalo Araujo
- Department of Biological and Environmental Sciences, Qatar University, Doha, Qatar
- Marine Research and Conservation Foundation, Lydeard St Lawrence, Somerset, UK
| | - Deni Ramirez-Macias
- Tiburon Ballena Mexico de Conciencia Mexico, La Paz, Baja California Sur, Mexico
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27
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Mitchison-Field LM, Belin BJ. Bacterial lipid biophysics and membrane organization. Curr Opin Microbiol 2023; 74:102315. [PMID: 37058914 PMCID: PMC10523990 DOI: 10.1016/j.mib.2023.102315] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 04/16/2023]
Abstract
The formation of lateral microdomains is emerging as a central organizing principle in bacterial membranes. These microdomains are targets of antibiotic development and have the potential to enhance natural product synthesis, but the rules governing their assembly are unclear. Previous studies have suggested that microdomain formation is promoted by lipid phase separation, particularly by cardiolipin (CL) and isoprenoid lipids, and there is strong evidence that CL biosynthesis is required for recruitment of membrane proteins to cell poles and division sites. New work demonstrates that additional bacterial lipids may mediate membrane protein localization and function, opening the field for mechanistic evaluation of lipid-driven membrane organization in vivo.
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Affiliation(s)
- Lorna My Mitchison-Field
- Department of Embryology, Carnegie Institution for Science, Baltimore, MD, USA; Department of Biology, Johns Hopkins University, Baltimore, MD, USA
| | - Brittany J Belin
- Department of Embryology, Carnegie Institution for Science, Baltimore, MD, USA; Department of Biology, Johns Hopkins University, Baltimore, MD, USA.
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28
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Kiouptsi K, Pontarollo G, Reinhardt C. Gut Microbiota and the Microvasculature. Cold Spring Harb Perspect Med 2023; 13:a041179. [PMID: 37460157 PMCID: PMC10411863 DOI: 10.1101/cshperspect.a041179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
The gut microbiota is increasingly recognized as an actuating variable shaping vascular development and endothelial cell function in the intestinal mucosa but also affecting the microvasculature of remote organs. In the small intestine, colonization with gut microbiota and subsequent activation of innate immune pathways promotes the development of intricate capillary networks and lacteals, influencing the integrity of the gut-vascular barrier as well as nutrient uptake. Since the liver yields most of its blood supply via the portal circulation, the hepatic microcirculation steadily encounters microbiota-derived patterns and active signaling metabolites that induce changes in the organization of the liver sinusoidal endothelium, influencing immune zonation of sinusoids and impacting on metabolic processes. In addition, microbiota-derived signals may affect the vasculature of distant organ systems such as the brain and the eye microvasculature. In recent years, this gut-resident microbial ecosystem was revealed to contribute to the development of several vascular disease phenotypes.
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Affiliation(s)
- Klytaimnistra Kiouptsi
- Center for Thrombosis and Hemostasis (CTH), Partner Site Rhine Main, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine Main, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Giulia Pontarollo
- Center for Thrombosis and Hemostasis (CTH), Partner Site Rhine Main, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Christoph Reinhardt
- Center for Thrombosis and Hemostasis (CTH), Partner Site Rhine Main, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine Main, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
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29
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Du J, Li Y, Lu X, Geng Z, Yuan Y, Liu Y, Li J, Wang M, Wang J. Metabolomics-based study on the changes of endogenous metabolites during adventitious bud formation from leaf margin of Bryophyllum pinnatum (Lam.) Oken. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107845. [PMID: 37364508 DOI: 10.1016/j.plaphy.2023.107845] [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: 04/14/2023] [Revised: 05/21/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023]
Abstract
Bryophyllum pinnatum (Lam.) Oken is an ornamental and ethno-medicine plant, which can grow a circle of adventitious bud around the leaf margin. The dynamic change of metabolites during the development of B. pinnatum remains poorly understood. Here, leaves from B. pinnatum at four developmental stages were sampled based on morphological characteristics. A non-targeted metabolomics approach was used to evaluate the changes of endogenous metabolites during adventitious bud formation in B. pinnatum. The results showed that differential metabolites were mainly enriched in sphingolipid metabolism, flavone and flavonol biosynthesis, phenylalanine metabolism, and tricarboxylic acid cycle pathway. The metabolites assigned to amino acids, flavonoids, sphingolipids, and the plant hormone jasmonic acid decreased from period Ⅰ to Ⅱ, and then increased from period Ⅲ to Ⅳ with the emergence of adventitious bud (period Ⅲ). While the metabolites related to the tricarboxylic acid cycle showed a trend of first increasing and then decreasing during the four observation periods. Depending on the metabolite changes, leaves may provide conditions similar to in vitro culture for adventitious bud to occur, thus enabling adventitious bud to grow at the leaf edge. Our results provide a basis for illustrating the regulatory mechanisms of adventitious bud in B. pinnatum.
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Affiliation(s)
- Jialin Du
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
| | - Yi Li
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
| | - Xu Lu
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
| | - Zhaopeng Geng
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
| | - Yuanyuan Yuan
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
| | - Yue Liu
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
| | - Juanling Li
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
| | - Minjuan Wang
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
| | - Junli Wang
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China.
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Zhao P, Zhuang Z, Guan X, Yang J, Wang W, Kuang Z. Crystal structure of the 3-ketodihydrosphingosine reductase TSC10 from Cryptococcus neoformans. Biochem Biophys Res Commun 2023; 670:73-78. [PMID: 37285720 DOI: 10.1016/j.bbrc.2023.05.109] [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: 05/14/2023] [Accepted: 05/25/2023] [Indexed: 06/09/2023]
Abstract
The second step in the de novo sphingolipid biosynthesis is the reduction of 3-ketodihydrosphingosine by 3-ketodihydrosphingosine reductase (KDSR) to produce dihydrosphingosine (sphinganine). Fungal TSC10 and mammalian KDSR (also named FVT-1) proteins are the enzymes responsible for this process and they belong to the short-chain dehydrogenase/reductase (SDR) superfamily. Albeit that both fungal and mammalian 3-ketodihydrosphingosine reductases were identified more than a decade ago, no structure of these enzymes from any species has been experimentally determined. Here we report the crystal structure of the catalytic domain of TSC10 from Cryptococcus neoformans in complex with NADPH. cnTSC10 adopts a Rossmann fold with a central seven-stranded β-sheet flanked by α-helices on both sides. Several regions are disordered that include the segment connecting the serine and tyrosine residues of the catalytic triad, the so-called 'substrate loop', and the C-terminal region that often participates in homo-tetramerization in other SDRs. In addition, the cofactor NADPH is not fully ordered. These structural features indicate that the catalytic site of cnTSC10 possesses significant flexibility. cnTSC10 is predominantly dimeric in solution while a minor portion of the protein forms homo-tetramer. The crystal structure reveals that the homo-dimer interface involves both hydrophobic and hydrophilic interactions mediated by helices α4 and α5, as well as the loop connecting strand β4 and helix α4. Because residues forming hydrogen bonds and salt bridges in the dimer interface are not conserved between fungal TSC10 and mammalian KDSR proteins, it might be possible to develop inhibitors that selectively target fungal TSC10 dimerization.
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Affiliation(s)
- Panqi Zhao
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou, 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Guangzhou, 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou, 510632, China
| | - Zewen Zhuang
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou, 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Guangzhou, 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou, 510632, China
| | - Xueyan Guan
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou, 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Guangzhou, 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou, 510632, China
| | - Jinjin Yang
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou, 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Guangzhou, 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou, 510632, China
| | - Weiwei Wang
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Zhihe Kuang
- Department of Cell Biology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China; Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou, 510632, China; Guangdong Provincial Biotechnology Drug & Engineering Technology Research Center, Guangzhou, 510632, China; National Engineering Research Center of Genetic Medicine, Guangzhou, 510632, China.
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Evidence Supporting the Involvement of the Minority Compounds of Extra Virgin Olive Oil, through Gut Microbiota Modulation, in Some of the Dietary Benefits Related to Metabolic Syndrome in Comparison to Butter. Molecules 2023; 28:molecules28052265. [PMID: 36903509 PMCID: PMC10004845 DOI: 10.3390/molecules28052265] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/22/2023] [Accepted: 02/25/2023] [Indexed: 03/05/2023] Open
Abstract
Extra virgin olive oil (EVOO) has proven to yield a better health outcome than other saturated fats widely used in the Western diet, including a distinct dysbiosis-preventive modulation of gut microbiota. Besides its high content in unsaturated fatty acids, EVOO also has an unsaponifiable polyphenol-enriched fraction that is lost when undergoing a depurative process that gives place to refined olive oil (ROO). Comparing the effects of both oils on the intestinal microbiota of mice can help us determine which benefits of EVOO are due to the unsaturated fatty acids, which remain the same in both, and which benefits are a consequence of its minority compounds, mainly polyphenols. In this work, we study these variations after only six weeks of diet, when physiological changes are not appreciated yet but intestinal microbial alterations can already be detected. Some of these bacterial deviations correlate in multiple regression models with ulterior physiological values, at twelve weeks of diet, including systolic blood pressure. Comparison between the EVOO and ROO diets reveals that some of these correlations can be explained by the type of fat that is present in the diet, while in other cases, such as the genus Desulfovibrio, can be better understood if the antimicrobial role of the virgin olive oil polyphenols is considered.
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Amin N, Schwarzkopf S, Tröscher-Mußotter J, Camarinha-Silva A, Dänicke S, Huber K, Frahm J, Seifert J. Host metabolome and faecal microbiome shows potential interactions impacted by age and weaning times in calves. Anim Microbiome 2023; 5:12. [PMID: 36788596 PMCID: PMC9926800 DOI: 10.1186/s42523-023-00233-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/06/2023] [Indexed: 02/16/2023] Open
Abstract
BACKGROUND Calves undergo nutritional, metabolic, and behavioural changes from birth to the entire weaning period. An appropriate selection of weaning age is essential to reduce the negative effects caused by weaning-related dietary transitions. This study monitored the faecal microbiome and plasma metabolome of 59 female Holstein calves during different developmental stages and weaning times (early vs. late) and identified the potential associations of the measured parameters over an experimental period of 140 days. RESULTS A progressive development of the microbiome and metabolome was observed with significant differences according to the weaning groups (weaned at 7 or 17 weeks of age). Faecal samples of young calves were dominated by bifidobacterial and lactobacilli species, while their respective plasma samples showed high concentrations of amino acids (AAs) and biogenic amines (BAs). However, as the calves matured, the abundances of potential fiber-degrading bacteria and the plasma concentrations of sphingomyelins (SMs), few BAs and acylcarnitines (ACs) were increased. Early-weaning at 7 weeks significantly restructured the microbiome towards potential fiber-degrading bacteria and decreased plasma concentrations of most of the AAs and SMs, few BAs and ACs compared to the late-weaning event. Strong associations between faecal microbes, plasma metabolites and calf growth parameters were observed during days 42-98, where the abundances of Bacteroides, Parabacteroides, and Blautia were positively correlated with the plasma concentrations of AAs, BAs and SMs as well as the live weight gain or average daily gain in calves. CONCLUSION The present study reported that weaning at 17 weeks of age was beneficial due to higher growth rate of late-weaned calves during days 42-98 and a quick adaptability of microbiota to weaning-related dietary changes during day 112, suggesting an age-dependent maturation of the gastrointestinal tract. However, the respective plasma samples of late-weaned calves contained several metabolites with differential concentrations to the early-weaned group, suggesting a less abrupt but more-persistent effect of dietary changes on host metabolome compared to the microbiome.
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Affiliation(s)
- Nida Amin
- grid.9464.f0000 0001 2290 1502HoLMiR - Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany ,grid.9464.f0000 0001 2290 1502Institute of Animal Science, University of Hohenheim, Emil-Wolff-Str. 6-10, 70593 Stuttgart, Germany
| | - Sarah Schwarzkopf
- grid.9464.f0000 0001 2290 1502HoLMiR - Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany ,grid.9464.f0000 0001 2290 1502Institute of Animal Science, University of Hohenheim, Emil-Wolff-Str. 6-10, 70593 Stuttgart, Germany
| | - Johanna Tröscher-Mußotter
- grid.9464.f0000 0001 2290 1502HoLMiR - Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany ,grid.9464.f0000 0001 2290 1502Institute of Animal Science, University of Hohenheim, Emil-Wolff-Str. 6-10, 70593 Stuttgart, Germany
| | - Amélia Camarinha-Silva
- grid.9464.f0000 0001 2290 1502HoLMiR - Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany ,grid.9464.f0000 0001 2290 1502Institute of Animal Science, University of Hohenheim, Emil-Wolff-Str. 6-10, 70593 Stuttgart, Germany
| | - Sven Dänicke
- grid.417834.dInstitute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Brunswick, Germany
| | - Korinna Huber
- grid.9464.f0000 0001 2290 1502HoLMiR - Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany ,grid.9464.f0000 0001 2290 1502Institute of Animal Science, University of Hohenheim, Emil-Wolff-Str. 6-10, 70593 Stuttgart, Germany
| | - Jana Frahm
- grid.417834.dInstitute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Brunswick, Germany
| | - Jana Seifert
- HoLMiR - Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany. .,Institute of Animal Science, University of Hohenheim, Emil-Wolff-Str. 6-10, 70593, Stuttgart, Germany.
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Abstract
Metabolites produced by commensal gut microbes impact host health through their recognition by the immune system and their influence on numerous metabolic pathways. Notably, the gut microbiota can both transform and synthesize lipids as well as break down dietary lipids to generate secondary metabolites with host modulatory properties. Although lipids have largely been consigned to structural roles, particularly in cell membranes, recent research has led to an increased appreciation of their signaling activities, with potential impacts on host health and physiology. This review focuses on studies that highlight the functions of bioactive lipids in mammalian physiology, with a special emphasis on immunity and metabolism.
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Affiliation(s)
- Eric M Brown
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Center for Computational and Integrative Biology, Department of Molecular Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
| | - Jon Clardy
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Blavatnik Institute, Boston, MA 02115, USA
| | - Ramnik J Xavier
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Center for Computational and Integrative Biology, Department of Molecular Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
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Zymosan-Induced Murine Peritonitis Is Associated with an Increased Sphingolipid Synthesis without Changing the Long to Very Long Chain Ceramide Ratio. Int J Mol Sci 2023; 24:ijms24032773. [PMID: 36769096 PMCID: PMC9917615 DOI: 10.3390/ijms24032773] [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: 12/21/2022] [Revised: 01/25/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023] Open
Abstract
Sphingolipids are key molecules in inflammation and defense against pathogens. Their role in dectin-1/TLR2-mediated responses is, however, poorly understood. This study investigated the sphingolipidome in the peritoneal fluid, peritoneal cells, plasma, and spleens of mice after intraperitoneal injection of 0.1 mg zymosan/mouse or PBS as a control. Samples were collected at 2, 4, 8, and 16 h post-injection, using a total of 36 mice. Flow cytometry analysis of peritoneal cells and measurement of IL-6, IL-1β, and TNF-α levels in the peritoneal lavages confirmed zymosan-induced peritonitis. The concentrations of sphingoid bases, dihydroceramides, ceramides, dihydrosphingomyelins, sphingomyelins, monohexosylceramides, and lactosylceramides were increased after zymosan administration, and the effects varied with the time and the matrix measured. The greatest changes occurred in peritoneal cells, followed by peritoneal fluid, at 8 h and 4 h post-injection, respectively. Analysis of the sphingolipidome suggests that zymosan increased the de novo synthesis of sphingolipids without change in the C14-C18:C20-C26 ceramide ratio. At 16 h post-injection, glycosylceramides remained higher in treated than in control mice. A minor effect of zymosan was observed in plasma, whereas sphinganine, dihydrosphingomyelins, and monohexosylceramides were significantly increased in the spleen 16 h post-injection. The consequences of the observed changes in the sphingolipidome remain to be established.
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Lee-Sarwar KA, Chen YC, Yao Chen Y, Kozyrskyj AL, Mandhane PJ, Turvey SE, Subbarao P, Bisgaard H, Stokholm J, Chawes B, Sørensen SJ, Kelly RS, Lasky-Su J, Zeiger RS, O’Connor GT, Sandel MT, Bacharier LB, Beigelman A, Carey VJ, Harshfield BJ, Laranjo N, Gold DR, Weiss ST, Litonjua AA. The maternal prenatal and offspring early-life gut microbiome of childhood asthma phenotypes. Allergy 2023; 78:418-428. [PMID: 36107703 PMCID: PMC9892205 DOI: 10.1111/all.15516] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/06/2022] [Accepted: 08/17/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND The infant fecal microbiome is known to impact subsequent asthma risk, but the environmental exposures impacting this association, the role of the maternal microbiome, and how the microbiome impacts different childhood asthma phenotypes are unknown. METHODS Our objective was to identify associations between features of the prenatal and early-life fecal microbiomes and child asthma phenotypes. We analyzed fecal 16 s rRNA microbiome profiling and fecal metabolomic profiling from stool samples collected from mothers during the third trimester of pregnancy (n = 120) and offspring at ages 3-6 months (n = 265), 1 (n = 436) and 3 years (n = 506) in a total of 657 mother-child pairs participating in the Vitamin D Antenatal Asthma Reduction Trial. We used clinical data from birth to age 6 years to characterize subjects with asthma as having early, transient or active asthma phenotypes. In addition to identifying specific genera that were robustly associated with asthma phenotypes in multiple covariate-adjusted models, we clustered subjects by their longitudinal microbiome composition and sought associations between fecal metabolites and relevant microbiome and clinical features. RESULTS Seven maternal and two infant fecal microbial taxa were robustly associated with at least one asthma phenotype, and a longitudinal gut microenvironment profile was associated with early asthma (Fisher exact test p = .03). Though mode of delivery was not directly associated with asthma, we found substantial evidence for a pathway whereby cesarean section reduces fecal Bacteroides and microbial sphingolipids, increasing susceptibility to early asthma. CONCLUSION Overall, our results suggest that the early-life, including prenatal, fecal microbiome modifies risk of asthma, especially asthma with onset by age 3 years.
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Affiliation(s)
- Kathleen A. Lee-Sarwar
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Division of Allergy and Clinical Immunology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Yih-Chieh Chen
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Division of Allergy and Clinical Immunology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Yuan Yao Chen
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | | | - Piush J. Mandhane
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Stuart E. Turvey
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
| | - Padmaja Subbarao
- Department of Pediatrics & Physiology, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Hans Bisgaard
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Gentofte, Denmark
| | - Jakob Stokholm
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Gentofte, Denmark
| | - Bo Chawes
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Gentofte, Denmark
| | - Søren J. Sørensen
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Gentofte, Denmark
| | - Rachel S. Kelly
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Jessica Lasky-Su
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Robert S. Zeiger
- Department of Clinical Science Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, CA, USA
| | - George T. O’Connor
- Pulmonary Center and Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Megan T. Sandel
- Department of Pediatrics, Boston Medical Center, Boston, MA, USA
| | - Leonard B. Bacharier
- Division of Pediatric Allergy, Immunology and Pulmonary Medicine, Department of Pediatrics, Monroe Carell Jr Children’s Hospital at Vanderbilt University Medical Center, Nashville, TN, USA
| | - Avraham Beigelman
- Division of Pediatric Allergy, Immunology and Pulmonary Medicine, Department of Pediatrics, Washington University School of Medicine, St Louis, MO and St Louis Children’s Hospital, St Louis, MO, USA
- The Kipper Institute of Allergy and Immunology, Schneider Children’s Medical Center of Israel, Tel Aviv University, Israel
| | - Vincent J. Carey
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Benjamin J. Harshfield
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Nancy Laranjo
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Diane R. Gold
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Scott T. Weiss
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Augusto A. Litonjua
- Division of Pediatric Pulmonary Medicine, Golisano Children’s Hospital at Strong, University of Rochester Medical Center, Rochester, NY, USA
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Yang LH, Dong RJ, Lu YW, Wang HM, Kuang YQ, Wang RR, Li YY. Integration of metabolomics and transcriptomics analyses reveals sphingosine-1-phosphate-mediated S1PR2/PI3K/Akt pathway involved in Talaromyces marneffei infection of macrophages. Microb Pathog 2023; 175:105985. [PMID: 36638850 DOI: 10.1016/j.micpath.2023.105985] [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: 10/31/2022] [Revised: 12/12/2022] [Accepted: 01/09/2023] [Indexed: 01/12/2023]
Abstract
Talaromycosis is a fatal mycosis caused by the thermally dimorphic fungus Talaromyces marneffei (T. marneffei). The pathogenic mechanisms of talaromycosis are still poorly understood. This work combined metabolomics, transcriptomics, and verification experiments in vivo and in vitro to detect metabolic profiles and differentially expressed genes (DEGs) in T. marneffei infected and uninfected macrophages to explore possible pathogenesis and underlying mechanisms. A total of 256 differential metabolites (117 up-regulated and 148 down-regulated) and 1320 DEGs (1286 up-regulated and 34 down-regulated) were identified between the two groups. Integrative metabolomics and transcriptomics analysis showed sphingolipid signaling pathway is the most influential. Verification experiments showed that compared with the control group, the production of sphingosine-1-phosphate (S1P) and the expression of the S1PR1, S1PR2, phosphor-PI3K, and phosphor-Akt genes involved in the sphingolipid signaling pathway have significantly increased in the T. marneffei infection group (p < 0.05). T. marneffei activates the S1PR2/PI3K/Akt pathways in J774A.1 macrophage, regulation of the S1P singling might serve as a promising therapeutic strategy for talaromycosis.
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Affiliation(s)
- Lu-Hui Yang
- Department of Dermatology and Venereology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Rong-Jing Dong
- Department of Dermatology and Venereology, First Affiliated Hospital of Kunming Medical University, Kunming, China; Hubei Provincial Key Laboratory of Occurrence and Intervention of Kidney Diseases, Medical College, Hubei Polytechnic University, Huangshi, China
| | - You-Wang Lu
- Department of Dermatology and Venereology, First Affiliated Hospital of Kunming Medical University, Kunming, China; Hubei Provincial Key Laboratory of Occurrence and Intervention of Kidney Diseases, Medical College, Hubei Polytechnic University, Huangshi, China
| | - Hong-Mei Wang
- Department of Dermatology and Venereology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yi-Qun Kuang
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, China; Scientific Research Laboratory Center, First Affiliated Hospital of Kunming Medical University, Kunming, China.
| | - Rui-Rui Wang
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, China.
| | - Yu-Ye Li
- Department of Dermatology and Venereology, First Affiliated Hospital of Kunming Medical University, Kunming, China.
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Zheng Q, Chang PV. Shedding Light on Bacterial Physiology with Click Chemistry. Isr J Chem 2023; 63:e202200064. [PMID: 37841997 PMCID: PMC10569449 DOI: 10.1002/ijch.202200064] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Indexed: 11/11/2022]
Abstract
Bacteria constitute a major lifeform on this planet and play numerous roles in ecology, physiology, and human disease. However, conventional methods to probe their activities are limited in their ability to visualize and identify their functions in these diverse settings. In the last two decades, the application of click chemistry to label these microbes has deepened our understanding of bacterial physiology. With the development of a plethora of chemical tools that target many biological molecules, it is possible to track these microorganisms in real-time and at unprecedented resolution. Here, we review click chemistry, including bioorthogonal reactions, and their applications in imaging bacterial glycans, lipids, proteins, and nucleic acids using chemical reporters. We also highlight significant advances that have enabled biological discoveries that have heretofore remained elusive.
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Affiliation(s)
- Qiuyu Zheng
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853
| | - Pamela V Chang
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853
- Department of Microbiology and Immunology, Cornell University, Ithaca, NY 14853
- Cornell Center for Immunology, Cornell University, Ithaca, NY 14853
- Cornell Institute of Host-Microbe Interactions and Disease, Cornell University, Ithaca, NY 14853
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The Impact of Phytochemicals in Obesity-Related Metabolic Diseases: Focus on Ceramide Metabolism. Nutrients 2023; 15:nu15030703. [PMID: 36771408 PMCID: PMC9920427 DOI: 10.3390/nu15030703] [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: 12/14/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 02/02/2023] Open
Abstract
The prevalence of obesity and related metabolic diseases has increased dramatically worldwide. As obesity progresses, various lipid species accumulate in ectopic tissues. Amongst them, ceramides-a deleterious sphingolipid species-accumulate and cause lipotoxicity and metabolic disturbances. Dysregulated ceramide metabolism appears to be a key feature in the pathogenesis of obesity-related metabolic diseases. Notably, dietary modification might have an impact on modulating ceramide metabolism. Phytochemicals are plant-derived compounds with various physiological properties, which have been shown to protect against obesity-related metabolic diseases. In this review, we aim to examine the impact of a myriad of phytochemicals and their dietary sources in altering ceramide deposition and ceramide-related metabolism from in vitro, in vivo, and human clinical/epidemiological studies. This review discusses how numerous phytochemicals are able to alleviate ceramide-induced metabolic defects and reduce the risk of obesity-related metabolic diseases via diverse mechanisms.
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Wang X, Li L, Bian C, Bai M, Yu H, Gao H, Zhao J, Zhang C, Zhao R. Alterations and correlations of gut microbiota, fecal, and serum metabolome characteristics in a rat model of alcohol use disorder. Front Microbiol 2023; 13:1068825. [PMID: 36687619 PMCID: PMC9846065 DOI: 10.3389/fmicb.2022.1068825] [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: 10/13/2022] [Accepted: 11/22/2022] [Indexed: 01/05/2023] Open
Abstract
Background Growing evidence suggests the gut microbiota and metabolites in serum or fecal may play a key role in the process of alcohol use disorder (AUD). However, the correlations of gut microbiota and metabolites in both feces and serum in AUD subjects are not well understood. Methods We established a rat model of AUD by a chronic intermittent ethanol voluntary drinking procedure, then the AUD syndromes, the gut microbiota, metabolomic profiling in feces and serum of the rats were examined, and correlations between gut microbiota and metabolites were analyzed. Results Ethanol intake preference increased and maintained at a high level in experimental rats. Anxiety-like behaviors was observed by open field test and elevated plus maze test after ethanol withdraw, indicating that the AUD rat model was successfully developed. The full length 16S rRNA gene sequencing showed AUD significantly changed the β-diversity of gut microbial communities, and significantly decreased the microbial diversity but did not distinctly impact the microbial richness. Microbiota composition significantly changed in AUD rats, such as the abundance of Romboutsia and Turicibacter were significantly increased, whereas uncultured_bacterium_o_Mollicutes_RF39 was decreased. In addition, the untargeted metabolome analysis revealed that many metabolites in both feces and serum were altered in the AUD rats, especially involved in sphingolipid metabolism and glycerophospholipid metabolism pathways. Finally, multiple correlations among AUD behavior, gut microbiota and co-changed metabolites were identified, and the metabolites were directly correlated with the gut microbiota and alcohol preference. Conclusion The altered metabolites in feces and serum are important links between the gut microbiota dysbiosis and alcohol preference in AUD rats, and the altered gut microbiota and metabolites can be potentially new targets for treating AUD.
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Affiliation(s)
- Xiaolong Wang
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Lin Li
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Cong Bian
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Mingjian Bai
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Haitao Yu
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Han Gao
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China
| | - Jiaxin Zhao
- National and Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation, School of Life Sciences, Jilin University, Changchun, China
| | - Chunjing Zhang
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, Heilongjiang, China,*Correspondence: Chunjing Zhang,
| | - Rongjie Zhao
- Department of Psychiatry, Qiqihar Medical University, Qiqihar, Heilongjiang, China,Rongjie Zhao,
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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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Régnier M, Van Hul M, Roumain M, Paquot A, de Wouters d’Oplinter A, Suriano F, Everard A, Delzenne NM, Muccioli GG, Cani PD. Inulin increases the beneficial effects of rhubarb supplementation on high-fat high-sugar diet-induced metabolic disorders in mice: impact on energy expenditure, brown adipose tissue activity, and microbiota. Gut Microbes 2023; 15:2178796. [PMID: 36803220 PMCID: PMC9980659 DOI: 10.1080/19490976.2023.2178796] [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] [Indexed: 02/23/2023] Open
Abstract
Consumption of prebiotics and plant-based compounds have many beneficial health effects through modulation of gut microbiota composition and are considered as promising nutritional strategy for the treatment of metabolic diseases. In the present study, we assessed the separated and combined effects of inulin and rhubarb on diet-induced metabolic disease in mice. We showed that supplementation with both inulin and rhubarb abolished the total body and fat mass gain upon high-fat and high-sucrose diet (HFHS) as well as several obesity-associated metabolic disorders. These effects were associated with increased energy expenditure, lower whitening of the brown adipose tissue, higher mitochondria activity and increased expression of lipolytic markers in white adipose tissue. Despite modifications of intestinal gut microbiota and bile acid compositions by inulin or rhubarb alone, combination of both inulin and rhubarb had minor additional impact on these parameters. However, the combination of inulin and rhubarb increased the expression of several antimicrobial peptides and higher goblet cell numbers, thereby suggesting a reinforcement of the gut barrier. Together, these results suggest that the combination of inulin and rhubarb in mice potentiates beneficial effects of separated rhubarb and inulin on HFHS-related metabolic disease and could be considered as nutritional strategy for the prevention and treatment of obesity and related pathologies.
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Affiliation(s)
- Marion Régnier
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université catholique de Louvain, Brussels, Belgium,WELBIO asbl, Walloon Excellence in Life Sciences and BIOtechnology (WELBIO), Wavre, Belgium
| | - Matthias Van Hul
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université catholique de Louvain, Brussels, Belgium,WELBIO asbl, Walloon Excellence in Life Sciences and BIOtechnology (WELBIO), Wavre, Belgium
| | - Martin Roumain
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group (BPBL), Louvain Drug Research Institute (LDRI), UCLouvain, Université catholique de Louvain, Brussels, Belgium
| | - Adrien Paquot
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group (BPBL), Louvain Drug Research Institute (LDRI), UCLouvain, Université catholique de Louvain, Brussels, Belgium
| | - Alice de Wouters d’Oplinter
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université catholique de Louvain, Brussels, Belgium,WELBIO asbl, Walloon Excellence in Life Sciences and BIOtechnology (WELBIO), Wavre, Belgium
| | - Francesco Suriano
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université catholique de Louvain, Brussels, Belgium,WELBIO asbl, Walloon Excellence in Life Sciences and BIOtechnology (WELBIO), Wavre, Belgium,current address: Institute of Biomedicine, Department of Medical Biochemistry and Cell Biology, University of Gothenburg, Gothenburg, Sweden
| | - Amandine Everard
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université catholique de Louvain, Brussels, Belgium,WELBIO asbl, Walloon Excellence in Life Sciences and BIOtechnology (WELBIO), Wavre, Belgium
| | - Nathalie M. Delzenne
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université catholique de Louvain, Brussels, Belgium
| | - Giulio G. Muccioli
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group (BPBL), Louvain Drug Research Institute (LDRI), UCLouvain, Université catholique de Louvain, Brussels, Belgium
| | - Patrice D. Cani
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain, Université catholique de Louvain, Brussels, Belgium,WELBIO asbl, Walloon Excellence in Life Sciences and BIOtechnology (WELBIO), Wavre, Belgium,CONTACT Patrice D. Cani LDRI, Metabolism and Nutrition Research Group, UCLouvain, Université Catholique de Louvain, Walloon Excellence in Life Sciences and BIOtechnology (WELBIO), Av. E. Mounier, 73 box B1.73.11, B-1200, Brussels, Belgium
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Endotoxin-free gram-negative bacterium as a system for production and secretion of recombinant proteins. Appl Microbiol Biotechnol 2022; 107:287-298. [DOI: 10.1007/s00253-022-12295-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 12/03/2022]
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Zheng X, Liu B, Wang N, Yang J, Zhou Q, Sun C, Zhao Y. Low fish meal diet supplemented with probiotics ameliorates intestinal barrier and immunological function of Macrobrachium rosenbergii via the targeted modulation of gut microbes and derived secondary metabolites. Front Immunol 2022; 13:1074399. [PMID: 36466900 PMCID: PMC9713824 DOI: 10.3389/fimmu.2022.1074399] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 10/31/2022] [Indexed: 09/03/2023] Open
Abstract
The unsuitable substitution ratio of fish meal by plant protein will reshape the intestinal microbial composition and intestine immunity. However, previous studies were mostly limited to investigating how different feed or probiotics characterized the microbial composition but ignored the biological interactions between bacteria and host physiology through secondary metabolites. Therefore, this study integrates the apparent indicators monitoring, 16S rDNA sequencing, and metabonomics to systematically investigate the effects of cottonseed protein concentrate (CPC) substitution of fish meal and Bacillus coagulans intervention on gut microbes, secondary metabolites, and intestinal immunity of Macrobrachium rosenbergii. Prawns were fed with three diets for 70 days: HF diets contained 25% fish meal, CPC in LF diets were replaced with 10% fish meal, and LF diets supplemented with 2 × 108 CFU/g diet B. coagulans were designated as BC diets. Results showed that CPC substitution induced a significant decrease in digestive enzyme activities (trypsin and lipase) and gut barrier protein PT-1 expression and a significant increase in γ-GT enzyme activity and inflammatory-related factors (Relish and Toll) expression. B. coagulans treatment mitigated the negative changes of the above indicators. Meanwhile, it significantly improved the expression levels of the barrier factor PT-1, the reparative cytokine IL-22, and Cu/Zn-SOD. CPC substitution resulted in a remarkable downregulated abundance of Firmicutes phyla, Flavobacterium spp., and Bacillus spp. B. coagulans treatment induced the callback of Firmicutes abundance and improved the relative abundance of Sphingomonas, Bacillus, and Ralstonia. Functional prediction indicated that CPC substitution resulted in elevated potential pathogenicity of microbial flora, and B. coagulans reduces the pathogenesis risk. Pearson's correlation analysis established a significant positive correlation between differential genera (Sphingomonas, Bacillus, and Ralstonia) and secondary metabolites (including sphingosine, dehydrophytosphingosine, amino acid metabolites, etc.). Meanwhile, the latter were significantly associated with intestinal immunoregulation-related genes (Cu/Zn-SOD, IL-22, PT-1, Toll, and Relish). This study indicated that B. coagulans could mediate specific gut microbes and the combined action of multiple functional secondary metabolites to affect intestinal barrier function, digestion, and inflammation. Our study revealed the decisive role of gut microbes and derived secondary metabolites in the model of dietary composition-induced intestinal injury and probiotic treatment from a new perspective.
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Affiliation(s)
- Xiaochuan Zheng
- Key Laboratory for Genetic Breeding of Aquatic Animals and Aquaculture Biology, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Wuxi, China
| | - Bo Liu
- Key Laboratory for Genetic Breeding of Aquatic Animals and Aquaculture Biology, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Ning Wang
- Key Laboratory for Genetic Breeding of Aquatic Animals and Aquaculture Biology, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Jie Yang
- Key Laboratory for Genetic Breeding of Aquatic Animals and Aquaculture Biology, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Qunlan Zhou
- Key Laboratory for Genetic Breeding of Aquatic Animals and Aquaculture Biology, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Cunxin Sun
- Key Laboratory for Genetic Breeding of Aquatic Animals and Aquaculture Biology, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Wuxi, China
| | - Yongfeng Zhao
- Key Laboratory for Genetic Breeding of Aquatic Animals and Aquaculture Biology, Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
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Przemieniecki SW, Oćwieja M, Ciesielski S, Halecki W, Matras E, Gorczyca A. Chemical Structure of Stabilizing Layers of Negatively Charged Silver Nanoparticles as an Effector of Shifts in Soil Bacterial Microbiome under Short-Term Exposure. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14438. [PMID: 36361318 PMCID: PMC9658158 DOI: 10.3390/ijerph192114438] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/23/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
In this work, we have assessed the exposure of soil bacteria from potato monoculture to three types of silver nanoparticles (AgNPs) as well as silver ions (Ag+ ions) delivered in the form of silver nitrate and a commercially available fungicide. The diversity of the soil microbial community, enzymatic activity, and carbon source utilization were evaluated. It was found that only the fungicide significantly limited the abundance and activity of soil bacteria. Silver ions significantly reduced bacterial metabolic activity. In turn, one type of AgNPs prepared with the use of tannic acid (TA) increased bacterial load and activity. There was found in all AgNPs treated soils (1) a greater proportion of all types of persistent bacteria, i.e., Bacillus, Paenibacillus, and Clostridium; (2) a visible decrease in the proportion of Nocardioides, Arthrobacter, and Candidatus Solibacter; (3) almost complete depletion of Pseudomonas; (4) increase in the number of low-frequency taxa and decrease in dominant taxa compared to the control soil. Despite the general trend of qualitative changes in the bacterial community, it was found that the differences in the chemical structure of the AgNP stabilizing layers had a significant impact on the specific metabolic activity resulting from qualitative changes in the microbiome.
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Affiliation(s)
- Sebastian Wojciech Przemieniecki
- Department of Entomology, Phytopathology and Molecular Diagnostics, University of Warmia and Mazury in Olsztyn, Prawochenskiego 17, PL-10721 Olsztyn, Poland
| | - Magdalena Oćwieja
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, PL-30239 Krakow, Poland
| | - Sławomir Ciesielski
- Department of Environmental Biotechnology, University of Warmia and Mazury in Olsztyn, Słoneczna 45G, PL-10719 Olsztyn, Poland
| | - Wiktor Halecki
- Institute of Nature Conservation, Polish Academy of Sciences, Mickiewicza 33, PL-31120 Kraków, Poland
| | - Ewelina Matras
- Department of Microbiology and Biomonitoring, University of Agriculture in Krakow, Mickiewicza 21, PL-31120 Krakow, Poland
| | - Anna Gorczyca
- Department of Microbiology and Biomonitoring, University of Agriculture in Krakow, Mickiewicza 21, PL-31120 Krakow, Poland
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Fan Y, Qin M, Zhu J, Chen X, Luo J, Chen T, Sun J, Zhang Y, Xi Q. MicroRNA sensing and regulating microbiota-host crosstalk via diet motivation. Crit Rev Food Sci Nutr 2022; 64:4116-4133. [PMID: 36287029 DOI: 10.1080/10408398.2022.2139220] [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] [Indexed: 11/03/2022]
Abstract
Accumulating evidence has demonstrated that diet-derived gut microbiota participates in the regulation of host metabolism and becomes the foundation for precision-based nutritional interventions and the biomarker for potential individual dietary recommendations. However, the specific mechanism of the gut microbiota-host crosstalk remains unclear. Recent studies have identified that noncoding RNAs, as important elements in the regulation of the initiation and termination of gene expression, mediate microbiota-host communication. Besides, the cross-kingdom regulation of non-host derived microRNAs also influence microbiota-host crosstalk via diet motivation. Hence, understanding the relationship between gut microbiota, miRNAs, and host metabolism is indispensable to revealing individual differences in dietary motivation and providing targeted recommendations and strategies. In this review, we first present an overview of the interaction between diet, host genetics, and gut microbiota and collected some latest research associated with microRNAs modulated gut microbiota and intestinal homeostasis. Then, specifically described the possible molecular mechanisms of microRNAs in sensing and regulating gut microbiota-host crosstalk. Lastly, summarized the prospect of microRNAs as biomarkers in disease diagnosis, and the disadvantages of microRNAs in regulating gut microbiota-host crosstalk. We speculated that microRNAs could become potential novel circulating biomarkers for personalized dietary strategies to achieve precise nutrition in future clinical research implications.
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Affiliation(s)
- Yaotian Fan
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Mengran Qin
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Jiahao Zhu
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Xingping Chen
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- Key Laboratory of Animal Nutrition in Jiangxi Province, Jiangxi Agricultural University, Nanchang, China
| | - Junyi Luo
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Ting Chen
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Jiajie Sun
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Yongliang Zhang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Qianyun Xi
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
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Xerri NL, Payne SM. Bacteroides thetaiotaomicron Outer Membrane Vesicles Modulate Virulence of Shigella flexneri. mBio 2022; 13:e0236022. [PMID: 36102517 PMCID: PMC9600379 DOI: 10.1128/mbio.02360-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 11/20/2022] Open
Abstract
The role of the gut microbiota in the pathogenesis of Shigella flexneri remains largely unknown. To understand the impact of the gut microbiota on S. flexneri virulence, we examined the effect of interspecies interactions with Bacteroides thetaiotaomicron, a prominent member of the gut microbiota, on S. flexneri invasion. When grown in B. thetaiotaomicron-conditioned medium, S. flexneri showed reduced invasion of human epithelial cells. This decrease in invasiveness of S. flexneri resulted from a reduction in the level of the S. flexneri master virulence regulator VirF. Reduction of VirF corresponded with a decrease in expression of a secondary virulence regulator, virB, as well as expression of S. flexneri virulence genes required for invasion, intracellular motility, and spread. Repression of S. flexneri virulence factors by B. thetaiotaomicron-conditioned medium was not caused by either a secreted metabolite or secreted protein but rather was due to the presence of B. thetaiotaomicron outer membrane vesicles (OMVs) in the conditioned medium. The addition of purified B. thetaiotaomicron OMVs to S. flexneri growth medium recapitulated the inhibitory effects of B. thetaiotaomicron-conditioned medium on invasion, virulence gene expression, and virulence protein levels. Total lipids extracted from either B. thetaiotaomicron cells or B. thetaiotaomicron OMVs also recapitulated the effects of B. thetaiotaomicron-conditioned medium on expression of the S. flexneri virulence factor IpaC, indicating that B. thetaiotaomicron OMV lipids, rather than a cargo contained in the vesicles, are the active factor responsible for the inhibition of S. flexneri virulence. IMPORTANCE Shigella flexneri is the causative agent of bacillary dysentery in humans. Shigella spp. are one of the leading causes of diarrheal morbidity and mortality, especially among children in low- and middle-income countries. The rise of antimicrobial resistance combined with the lack of an effective vaccine for Shigella heightens the importance of studies aimed at better understanding previously uncharacterized aspects of Shigella pathogenesis. Here, we show that conditioned growth medium from the commensal bacterium Bacteroides thetaiotaomicron represses the invasion of S. flexneri. This repression is due to the presence of B. thetaiotaomicron outer membrane vesicles. These findings establish a role for interspecies interactions with a prominent member of the gut microbiota in modulating the virulence of S. flexneri and identify a novel function of outer membrane vesicles in interbacterial signaling between members of the gut microbiota and an enteric pathogen.
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Affiliation(s)
- Nicholas L. Xerri
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, USA
| | - Shelley M. Payne
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, USA
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Piccinini A, Ferri G, Olivastri A, Rossi F, Festino AR, Vergara A. Intradiaphragmatic abscesses in a wild boar (<em>Sus scrofa</em>): Inspective implications based on anatomopathological evidences. Ital J Food Saf 2022; 11:10346. [PMID: 36204301 PMCID: PMC9531142 DOI: 10.4081/ijfs.2022.10346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 04/11/2022] [Indexed: 11/22/2022] Open
Abstract
The intradiaphragmatic localization of an abscess is rarely described in humans and in other animal domestic and wild species, and can be caused by penetrative traumas (i.e., firearm injuries). Here we describe two intradiaphragmatic abscesses in a hunted adult male wild boar (Sus scrofa) pluck, associated with adhesion phenomena with the contiguous anatomical structures (pleural, phrenic, and glissonian serosas) and observed during the post mortem inspection, in accordance with the Reg. EU 627/2019. One of these lesions also presented a phreno-abdominal fistula. We found in cytopathological evaluation of the neoformations’ content the presence of spheroidal bacterial soma, characterized by linearly concatenated “Streptococcus-like” aggregation pattern. Furthermore, microbiological assays revealed a polymicrobial pattern characterized by the presence of telluric microorganisms, some of which have a marked pyogenic action (Streptococcus suis type I, Sphingomonas paucimobilis, Carnobacterium divergens, and Lactobacillus sakei). Our results and collected evidence demonstrate the pathogenetic hypothesis of bacterial contamination secondary to penetrative trauma caused by a not-mortal projectile’s wound, defining the inspective behaviour according to the cogent legislation. These lesions, in the reason of their potential relation to toxemia, bacteremia and septicemia phenomena, represent a sanitary risk that impose, from a normative point of view, the total condemnation of the carcass. These inspective implications, originating from the observation and interdisciplinary description of the anatomopathological and microbiological features of the lesions, are directly projected on the normative scenario, providing useful elements to guarantee the health of the consumer.
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Martin FP, Tytgat HLP, Krogh Pedersen H, Moine D, Eklund AC, Berger B, Sprenger N. Host-microbial co-metabolites modulated by human milk oligosaccharides relate to reduced risk of respiratory tract infections. Front Nutr 2022; 9:935711. [PMID: 35990340 PMCID: PMC9386273 DOI: 10.3389/fnut.2022.935711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 07/13/2022] [Indexed: 11/29/2022] Open
Abstract
Human milk oligosaccharides (HMOs) are structurally diverse oligosaccharides present in breast milk, supporting the development of the gut microbiota and immune system. Previously, 2-HMO (2'fucosyllactose, lacto-N-neotetraose) compared to control formula feeding was associated with reduced risk of lower respiratory tract infections (LRTIs), in part linked to lower acetate and higher bifidobacteria proportions. Here, our objective was to gain further insight into additional molecular pathways linking the 2-HMO formula feeding and LRTI mitigation. From the same trial, we measured the microbiota composition and 743 known biochemical species in infant stool at 3 months of age using shotgun metagenomic sequencing and untargeted mass spectrometry metabolomics. We used multivariate analysis to identify biochemicals associated to 2-HMO formula feeding and LRTI and integrated those findings with the microbiota compositional data. Three molecular pathways stood out: increased gamma-glutamylation and N-acetylation of amino acids and decreased inflammatory signaling lipids. Integration of stool metagenomic data revealed some Bifidobacterium and Bacteroides species to be implicated. These findings deepen our understanding of the infant gut/microbiome co-metabolism in early life and provide evidence for how such metabolic changes may influence immune competence at distant mucosal sites such as the airways.
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Affiliation(s)
- François-Pierre Martin
- Nestlé Institute of Health Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Hanne L P Tytgat
- Nestlé Institute of Health Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | | | - Deborah Moine
- Nestlé Institute of Food Safety and Analytical Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | | | - Bernard Berger
- Nestlé Institute of Health Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
| | - Norbert Sprenger
- Nestlé Institute of Health Sciences, Nestlé Research, Société des Produits Nestlé S.A., Lausanne, Switzerland
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Andújar-Tenorio N, Prieto I, Cobo A, Martínez-Rodríguez AM, Hidalgo M, Segarra AB, Ramírez M, Gálvez A, Martínez-Cañamero M. High fat diets induce early changes in gut microbiota that may serve as markers of ulterior altered physiological and biochemical parameters related to metabolic syndrome. Effect of virgin olive oil in comparison to butter. PLoS One 2022; 17:e0271634. [PMID: 35972974 PMCID: PMC9380944 DOI: 10.1371/journal.pone.0271634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 07/05/2022] [Indexed: 11/18/2022] Open
Abstract
Butter and virgin olive oil (EVOO) are two fats differing in their degree of saturation and insaponifiable fraction. EVOO, enriched in polyphenols and other minority components, exerts a distinct effect on health. Using next generation sequencing, we have studied early and long-term effects of both types of fats on the intestinal microbiota of mice, finding significant differences between the two diets in the percentage of certain bacterial taxa, correlating with hormonal, physiological and metabolic parameters in the host. These correlations are not only concomitant, but most noticeably some of the changes detected in the microbial percentages at six weeks are correlating with changes in physiological values detected later, at twelve weeks. Desulfovibrionaceae/Desulfovibrio/D. sulfuricans stand out by presenting at six weeks a statistically significant higher percentage in the butter-fed mice with respect to the EVOO group, correlating with systolic blood pressure, food intake, water intake and insulin at twelve weeks. This not only suggests an early implication in the probability of developing altered physiological and biochemical responses later on in the host lifespan, but also opens the possibility of using this genus as a marker in the risk of suffering different pathologies in the future.
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Affiliation(s)
- Natalia Andújar-Tenorio
- Área de Microbiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
| | - Isabel Prieto
- Área de Fisiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
| | - Antonio Cobo
- Área de Microbiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
| | | | - Marina Hidalgo
- Área de Microbiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
| | - Ana Belén Segarra
- Área de Fisiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
| | - Manuel Ramírez
- Área de Fisiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
| | - Antonio Gálvez
- Área de Microbiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
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50
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Madapoosi SS, Cruickshank-Quinn C, Opron K, Erb-Downward JR, Begley LA, Li G, Barjaktarevic I, Barr RG, Comellas AP, Couper DJ, Cooper CB, Freeman CM, Han MK, Kaner RJ, Labaki W, Martinez FJ, Ortega VE, Peters SP, Paine R, Woodruff P, Curtis JL, Huffnagle GB, Stringer KA, Bowler RP, Esther CR, Reisdorph N, Huang YJ. Lung Microbiota and Metabolites Collectively Associate with Clinical Outcomes in Milder Stage Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med 2022; 206:427-439. [PMID: 35536732 DOI: 10.1164/rccm.202110-2241oc] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/10/2022] [Indexed: 11/16/2022] Open
Abstract
Rationale: Chronic obstructive pulmonary disease (COPD) is variable in its development. Lung microbiota and metabolites collectively may impact COPD pathophysiology, but relationships to clinical outcomes in milder disease are unclear. Objectives: Identify components of the lung microbiome and metabolome collectively associated with clinical markers in milder stage COPD. Methods: We analyzed paired microbiome and metabolomic data previously characterized from bronchoalveolar lavage fluid in 137 participants in the SPIROMICS (Subpopulations and Intermediate Outcome Measures in COPD Study), or (GOLD [Global Initiative for Chronic Obstructive Lung Disease Stage 0-2). Datasets used included 1) bacterial 16S rRNA gene sequencing; 2) untargeted metabolomics of the hydrophobic fraction, largely comprising lipids; and 3) targeted metabolomics for a panel of hydrophilic compounds previously implicated in mucoinflammation. We applied an integrative approach to select features and model 14 individual clinical variables representative of known associations with COPD trajectory (lung function, symptoms, and exacerbations). Measurements and Main Results: The majority of clinical measures associated with the lung microbiome and metabolome collectively in overall models (classification accuracies, >50%, P < 0.05 vs. chance). Lower lung function, COPD diagnosis, and greater symptoms associated positively with Streptococcus, Neisseria, and Veillonella, together with compounds from several classes (glycosphingolipids, glycerophospholipids, polyamines and xanthine, an adenosine metabolite). In contrast, several Prevotella members, together with adenosine, 5'-methylthioadenosine, sialic acid, tyrosine, and glutathione, associated with better lung function, absence of COPD, or less symptoms. Significant correlations were observed between specific metabolites and bacteria (Padj < 0.05). Conclusions: Components of the lung microbiome and metabolome in combination relate to outcome measures in milder COPD, highlighting their potential collaborative roles in disease pathogenesis.
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Affiliation(s)
| | | | - Kristopher Opron
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | | | - Lesa A Begley
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - Gen Li
- Department of Biostatistics, School of Public Health
| | | | - R Graham Barr
- Department of Medicine and
- Department of Epidemiology, Columbia University Medical Center, New York, New York
| | | | | | | | | | - MeiLan K Han
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | | | - Wassim Labaki
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | | | - Victor E Ortega
- Wake Forest School of Medicine, Wake Forest University, Winston-Salem, North Carolina
| | - Stephen P Peters
- Wake Forest School of Medicine, Wake Forest University, Winston-Salem, North Carolina
| | | | - Prescott Woodruff
- University of California at San Francisco, San Francisco, California
| | - Jeffrey L Curtis
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
- Medical Service, VA Ann Arbor Healthcare System, Ann Arbor, Michigan
| | - Gary B Huffnagle
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
- Department of Molecular, Cellular and Developmental Biology
| | | | - Russell P Bowler
- School of Medicine, University of Colorado, Aurora, Colorado; and
- Department of Medicine, National Jewish Health, Denver, Colorado
| | - Charles R Esther
- Division of Pediatric Pulmonology, and
- Marsico Lung Institute, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Nichole Reisdorph
- Department of Pharmaceutical Sciences, University of Colorado, Anschutz Campus, Aurora, Colorado
| | - Yvonne J Huang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan
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