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Mousavian AH, Zare Garizi F, Ghoreshi B, Ketabi S, Eslami S, Ejtahed HS, Qorbani M. The association of infant and mother gut microbiomes with development of allergic diseases in children: a systematic review. J Asthma 2024; 61:1121-1135. [PMID: 38506489 DOI: 10.1080/02770903.2024.2332921] [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: 12/20/2023] [Revised: 03/12/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024]
Abstract
OBJECTIVE It is believed that gut microbiota alteration leads to both intestinal and non-intestinal diseases in children. Since infants inherit maternal microbiota during pregnancy and lactation, recent studies suggest that changes in maternal microbiota can cause immune disorders as well. This systematic review was designed to assess the association between the child and mother's gut microbiome and allergy development in childhood. DATA SOURCES In this systematic review, international databases including PubMed, Scopus, and ISI/WOS were searched until January 2023 to identify relevant studies. STUDY SELECTIONS Observational studies that analyzed infant or maternal stool microbiome and their association with allergy development in children were included in this study. Data extraction and quality assessment of the included studies were independently conducted by two researchers. RESULTS Of the 1694 papers evaluated, 21 studies examined neonate gut microbiome by analyzing stool samples and six studies examined maternal gut microbiota. A total of 5319 participants were included in this study. Asthma followed by eczema and dermatitis were the most common allergy disorders among children. Urbanization caused a lack of diversity in the bacterial microbiota as well as lower levels of Bifidobacterium and Lachnospira associated with a higher risk of allergy. In contrast, higher levels of Roseburia and Flavonifractor were associated with lower allergy risk. CONCLUSIONS This systematic review shows that gut microbiota may be associated with allergy development. Further studies are required to provide a definitive answer.
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Affiliation(s)
- Amir-Hossein Mousavian
- Digestive Disease Research Institute, Tehran University of Medical Sciences, Tehran, Iran
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Fateme Zare Garizi
- Student Research Committee, Alborz University of Medical Sciences, Karaj, Iran
| | - Behnaz Ghoreshi
- Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Siavash Ketabi
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Solat Eslami
- Department of Medical Biotechnology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Hanieh-Sadat Ejtahed
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Qorbani
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
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Wu M, Chen X, Lu Q, Yao X. Fecal microbiota transplantation for the treatment of chronic inflammatory skin diseases. Heliyon 2024; 10:e37432. [PMID: 39309854 PMCID: PMC11416527 DOI: 10.1016/j.heliyon.2024.e37432] [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: 04/15/2024] [Revised: 09/02/2024] [Accepted: 09/03/2024] [Indexed: 09/25/2024] Open
Abstract
The regulation of immune functions and the maintenance of homeostasis in the internal environment are both integral to human gut microbiota (GM). If GM is disturbed, it can result in a range of autoimmune diseases, including chronic inflammatory skin conditions. Chronic inflammatory skin diseases driven by T or B-cell-mediated immune reactions are complex, including the most prevalent diseases and some rare diseases. Expanding knowledge of GM dysbiosis in chronic inflammatory skin diseases has emerged. The GM has some causal roles in the pathogenesis of these skin conditions. Targeting microbiota treatment, particularly fecal microbiota transplantation (FMT), is considered to be a promising strategy. FMT was commonly used in intestinal diseases by reshaping and balancing GM, serving as a reasonable administration in these skin inflammatory diseases. This paper summarizes the existing knowledge of GM dysbiosis in chronic inflammatory skin diseases and the research data on FMT treatment for such conditions.
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Affiliation(s)
- Mingyang Wu
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Xingyu Chen
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Qianjin Lu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - Xu Yao
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
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Wang J, Zhang Z, Dai T, Zhang Z, Zhang Q, Yao J, Wang L, He N, Li S. The therapeutic effect and possible mechanisms of alginate oligosaccharide on metabolic syndrome by regulating gut microbiota. Food Funct 2024; 15:9632-9661. [PMID: 39239698 DOI: 10.1039/d4fo02802c] [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: 09/07/2024]
Abstract
Metabolic syndrome (MetS) is a disease condition incorporating the abnormal accumulation of various metabolic components, including overweight or abdominal obesity, insulin resistance and abnormal glucose tolerance, hypertension, atherosclerosis, or dyslipidemia. It has been proved that the gut microbiota and microbial-derived products play an important role in regulating lipid metabolism and thus the onset and development of MetS. Previous studies have demonstrated that oligosaccharides with prebiotic effects, such as chitosan oligosaccharides, can regulate the structure of the microbial community and its derived products to control weight and reduce MetS associated with obesity. Alginate oligosaccharides (AOS), natural products extracted from degraded alginate salts with high solubility and extensive biological activity, have also been found to modulate gut microbiota. This review aims to summarize experimental evidence on the positive effects of AOS on different types of MetS while providing insights into mechanisms through which AOS regulates gut microbiota for preventing and treating MetS.
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Affiliation(s)
- Jingyi Wang
- School of Basic Medicine, Qingdao Medical College, Qingdao, University, Qingdao 266071, China.
- Department of Obstetrics and Gynecology, The Affiliated Qingdao Municipal Hospital of Qingdao University, Qingdao, 266000, China
| | - Zixuan Zhang
- School of Basic Medicine, Qingdao Medical College, Qingdao, University, Qingdao 266071, China.
| | - Tong Dai
- School of Basic Medicine, Qingdao Medical College, Qingdao, University, Qingdao 266071, China.
| | - Ziheng Zhang
- School of Basic Medicine, Qingdao Medical College, Qingdao, University, Qingdao 266071, China.
| | - Qingfeng Zhang
- School of Basic Medicine, Qingdao Medical College, Qingdao, University, Qingdao 266071, China.
| | - Jingtong Yao
- School of Basic Medicine, Qingdao Medical College, Qingdao, University, Qingdao 266071, China.
| | - Lijing Wang
- School of Basic Medicine, Qingdao Medical College, Qingdao, University, Qingdao 266071, China.
- Department of Obstetrics and Gynecology, The Affiliated Qingdao Municipal Hospital of Qingdao University, Qingdao, 266000, China
- Department of Obstetrics, Qingdao Municipal Hospital, Qingdao, 266000, China
| | - Ningning He
- School of Basic Medicine, Qingdao Medical College, Qingdao, University, Qingdao 266071, China.
| | - Shangyong Li
- School of Basic Medicine, Qingdao Medical College, Qingdao, University, Qingdao 266071, China.
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Anduni L, Molina H, Zazueta A, Cancino J, Ponce C, Chakoory O, Comtet-Marre S, Tapia CV, Peyret P, Gotteland M, Magne F. Optimization of lung tissue pre-treatment by bead homogenization for subsequent culturomics. Sci Rep 2024; 14:22724. [PMID: 39349927 PMCID: PMC11442450 DOI: 10.1038/s41598-024-69736-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 08/08/2024] [Indexed: 10/04/2024] Open
Abstract
The discovery that the lung harbors a diverse microbiome, as revealed by next-generation sequencing, has significantly altered our understanding of respiratory health and disease. Despite the association between the lung microbiota and disease, the nature of their relationship remains poorly understood, and culture isolation of these microorganisms could help to determine their role in lung physiology. Current procedures for processing samples from the lower respiratory tract have been shown to affect the viability of microorganisms, so it is crucial to develop new methods to improve their survival. This study aimed to improve the isolation and characterization of lung microorganisms using a bead-beating homogenization method in a mouse model. Microsphere diameter and bead-beating time affected the survival of the microorganisms (E. coli, S. aureus and C. albicans). Using 2.3 mm diameter microspheres for 60 s of bead-beating promoted the survival of both bacteria and yeast strains. After intratracheal instillation of these microorganisms in mice, approximately 70% of the cells were recovered after the tissue homogenization. To assess the efficiency of the proposed method, the diversity of bacteria was compared between the homogenate and lung tissue samples. Ninety-one genera were detected in the lung tissue, and 63 in the homogenate. Bacterial genera detected in the homogenate represented 84% of the total abundance of the microbiota identified in the lung tissue. Taken together, these results demonstrate that the tissue homogenization process developed in this study recovered the majority of the microorganisms present in the lung. This study presents a bead-beating homogenization method for effective cultivation of lung tissue microorganisms, which may help to improve the understanding of host-microbe interactions in the lung.
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Affiliation(s)
- Lourdes Anduni
- Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Hector Molina
- Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Alejandra Zazueta
- Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Javiera Cancino
- Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Carolina Ponce
- Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Oshma Chakoory
- Université Clermont Auvergne, INRAE, MEDIS, Clermont-Ferrand, France
| | | | | | - Pierre Peyret
- Université Clermont Auvergne, INRAE, MEDIS, Clermont-Ferrand, France
| | - Martin Gotteland
- Department of Nutrition, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Fabien Magne
- Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile.
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Vinothini K, Nakkeeran S, Saranya N, Jothi P, Richard JI, Perveen K, Bukhari NA, Glick BR, Sayyed RZ, Mastinu A. Rhizosphere Engineering of Biocontrol Agents Enriches Soil Microbial Diversity and Effectively Controls Root-Knot Nematodes. MICROBIAL ECOLOGY 2024; 87:120. [PMID: 39340684 PMCID: PMC11438712 DOI: 10.1007/s00248-024-02435-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2024] [Accepted: 09/14/2024] [Indexed: 09/30/2024]
Abstract
The root-knot nematode (RKN) causes significant yield loss in tomatoes. Understanding the interaction of biocontrol agents (BCAs)-nematicides-soil microbiomes and RKNs is essential for enhancing the efficacy of biocontrol agents and nematicides to curb RKN damage to crops. The present study aimed to evaluate the in vitro effectiveness of BACa and nematicide against RKN and to apply the amplicon sequencing to assess the interaction of Bacillus velezensis (VB7) and Trichoderma koningiopsis (TK) against RKNs. Metagenomic analysis revealed the relative abundance of three phyla such as Proteobacteria (42.16%), Firmicutes (19.57%), and Actinobacteria (17.69%) in tomato rhizospheres. Those tomato rhizospheres treated with the combined application of B. velezensis VB7 + T. koningiopsis TK and RKN had a greater frequency of diversity and richness than the control. RKN-infested tomato rhizosphere drenched with bacterial and fungal antagonists had the maximum diversity index of bacterial communities. A strong correlation with a maximum number of interconnection edges in the phyla Proteobacteria, Firmicutes, and Actinobacteria was evident in soils treated with both B. velezensis VB7 and T. koningiopsis TK challenged against RKN in infected soil. The present study determined a much greater diversity of bacterial taxa observed in tomato rhizosphere soils treated with B. velezensis VB7 and T. koningiopsis TK than in untreated soil. It is suggested that the increased diversity and abundance of bacterial communities might be responsible for increased nematicidal properties in tomato plants. Hence, the combined applications of B. velezensis VB7 and T. koningiopsis TK can enhance the nematicidal action to curb RKN infecting tomatoes.
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Affiliation(s)
- K Vinothini
- Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
| | - S Nakkeeran
- Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, 641 003, India.
| | - N Saranya
- Department of Plant Molecular Biology and Bioinformatics, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - P Jothi
- Department of Nematology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
| | - J Infant Richard
- Department of Plant Molecular Biology and Bioinformatics, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, 641003, India
| | - Kahkashan Perveen
- Department of Botany & Microbiology, College of Science, King Saud University, P.O. Box-22452, 11495, Riyadh, Saudi Arabia
| | - Najat A Bukhari
- Department of Botany & Microbiology, College of Science, King Saud University, P.O. Box-22452, 11495, Riyadh, Saudi Arabia
| | - Bernard R Glick
- Department of Biology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - R Z Sayyed
- Department of Biological Sciences and Chemistry, College of Arts and Science, University of Nizwa, Nizwa, 616, Sultanate of Oman.
| | - Andrea Mastinu
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, Viale Europa 11, 25123, Brescia, Italy.
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56
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Marreddy RKR, Phelps GA, Churion K, Picker J, Powell R, Cherian PT, Bowling JJ, Stephan CC, Lee RE, Hurdle JG. Chemical genetic analysis of enoxolone inhibition of C. difficile toxin production reveals adenine deaminase and ATP synthase as anti-virulence targets. J Biol Chem 2024:107839. [PMID: 39343002 DOI: 10.1016/j.jbc.2024.107839] [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: 06/26/2024] [Revised: 09/06/2024] [Accepted: 09/20/2024] [Indexed: 10/01/2024] Open
Abstract
Toxins TcdA and TcdB are the main virulence factors of Clostridioides difficile, a leading cause of hospital-acquired diarrhea. Despite their importance, there is a significant knowledge gap of druggable targets for inhibiting toxin production. To address this, we screened non-antibiotic phytochemicals to identify potential chemical genetic probes to discover anti-virulence drug targets. This led to the identification of 18β-glycyrrhetinic acid (enoxolone), a licorice metabolite, as an inhibitor of TcdA and TcdB biosynthesis. Using affinity-based proteomics, potential targets were identified as ATP synthase subunit alpha (AtpA) and adenine deaminase (Ade, which catalyzes conversion of adenine to hypoxanthine in the purine salvage pathway). To validate these targets, a multi-faceted approach was adopted. Gene silencing of ade and atpA inhibited toxin biosynthesis, while SPR and ITC molecular interaction analyses revealed direct binding of enoxolone to Ade. Metabolomics demonstrated enoxolone induced the accumulation of adenosine, while depleting hypoxanthine and ATP in C. difficile. Transcriptomics further revealed enoxolone dysregulated phosphate uptake genes, which correlated with reduced cellular phosphate levels. These findings suggest that enoxolone's cellular action is multi-targeted. Accordingly, supplementation with both hypoxanthine and triethyl phosphate (TEP), a phosphate source, was required to fully restore toxin production in the presence of enoxolone. In conclusion, through the characterization of enoxolone, we identified promising anti-virulence targets that interfere with nucleotide salvage and ATP synthesis, which may also block toxin biosynthesis.
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Affiliation(s)
- Ravi K R Marreddy
- Center for Infectious and Inflammatory Diseases, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, Texas, USA
| | - Gregory A Phelps
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN, USA; Graduate School of Biomedical Sciences, St. Jude Children's Research Hospital, Memphis TN, 38103 USA
| | - Kelly Churion
- Center for Infectious and Inflammatory Diseases, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, Texas, USA
| | - Jonathan Picker
- Center for Infectious and Inflammatory Diseases, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, Texas, USA
| | - Reid Powell
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, Texas, USA
| | - Philip T Cherian
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - John J Bowling
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Clifford C Stephan
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, Texas, USA
| | - Richard E Lee
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Julian G Hurdle
- Center for Infectious and Inflammatory Diseases, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, Texas, USA.
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Hoban R, Perez KM, Hendrixson DT, Valentine GC, Strobel KM. Non-nutritional use of human milk as a therapeutic agent in neonates: Brain, gut, and immunologic targets. Early Hum Dev 2024; 198:106126. [PMID: 39348773 DOI: 10.1016/j.earlhumdev.2024.106126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2024] [Accepted: 09/26/2024] [Indexed: 10/02/2024]
Abstract
Human milk (HM) exposure improves short- and long-term outcomes for infants due to a complex milieu of bioactive, stem cell, anti-inflammatory, anti-microbial, and nutritive components. Given this remarkable biologic fluid, non-nutritional utilization of HM as a targeted therapeutic is being explored in pre-clinical and clinical studies. This article describes recent research pertinent to non-nutritional uses of HM for neurologic, gastrointestinal, and infectious pathologies in neonates, as well as future directions.
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Affiliation(s)
- Rebecca Hoban
- Seattle Children's Hospital, University of Washington Department of Pediatrics, Division of Neonatology, Seattle, WA, USA.
| | - Krystle M Perez
- Seattle Children's Hospital, University of Washington Department of Pediatrics, Division of Neonatology, Seattle, WA, USA
| | - D Taylor Hendrixson
- Seattle Children's Hospital, University of Washington Department of Pediatrics, Division of Neonatology, Seattle, WA, USA
| | - Gregory C Valentine
- Seattle Children's Hospital, University of Washington Department of Pediatrics, Division of Neonatology, Seattle, WA, USA; Department of Oral Health Sciences, University of Washington, Seattle, WA, USA; Department of Obstetrics & Gynecology, Baylor College of Medicine, Houston, TX, USA
| | - Katie M Strobel
- Seattle Children's Hospital, University of Washington Department of Pediatrics, Division of Neonatology, Seattle, WA, USA
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Zhang Z, Liu Z, Yuan Y, Zhang W, Zhang S. Manipulation of juvenile hormone signaling by the fire blight pathogen Erwinia amylovora mediates fecundity enhancement of pear psylla. PEST MANAGEMENT SCIENCE 2024. [PMID: 39329350 DOI: 10.1002/ps.8443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 09/04/2024] [Accepted: 09/11/2024] [Indexed: 09/28/2024]
Abstract
BACKGROUND In nature, plant pathogens often rely on insect vectors for transmission. Through long-term evolution, plant pathogens and insect vectors have established a mutually beneficial symbiotic relationship. Fire blight, caused by the Gram-negative bacterium Erwinia amylovora (Eam), poses a significant global threat to apple and pear production due to its rapid dissemination among host plants of the Rosaceae family. Despite evidence of E. amylovora transmission by various insects, the association between this pathogen and the pear psylla Cacopsylla chinensis, a common vector insect in pear orchards, remains unclear. RESULTS Sampling investigations and qRT-PCR results revealed that C. chinensis, from 11 pear orchards severely affected by fire blight disease in Xinjiang of China, harbored varying levels of this pathogen. Eam-positive females exhibited significantly higher fecundity compared to Eam-negative individuals, displaying accelerated ovarian development and a notable increase in egg production. Further RNAi results revealed that juvenile hormone (JH) receptor methoprene-tolerant (CcMet) and a crucial downstream gene Krüppel-homologue 1 (CcKr-h1) mediated the fecundity improvement of C. chinensis induced by Eam. Additionally, miR-2b, which targets CcKr-h1, was identified as being involved in Eam-induced fecundity enhancement in C. chinensis. CONCLUSION This study unveils, for the first time, that Eam colonize and amplify the fecundity of C. chinensis females. Host miR-2b targets CcKr-h1 of the JH signaling pathway to regulate the heightened fecundity of C. chinensis induced by Eam. These findings not only broaden our understanding of the interaction between plant pathogens and insect vectors, but also provide novel strategies for managing fire blight and pear psylla. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Zhixian Zhang
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Zhenya Liu
- The National and Local Joint Engineering Laboratory of High Efficiency and Superior-Quality Cultivation and Fruit Deep Processing Technology of Characteristic Fruit Trees in South Xinjiang, Tarim University, Alar, China
- Key Lab of Xinjiang Production and Construction Corps in Comprehensive Agricultural Pest Management in Southern Xinjiang, Tarim University, Alar, China
| | - Yulin Yuan
- The National and Local Joint Engineering Laboratory of High Efficiency and Superior-Quality Cultivation and Fruit Deep Processing Technology of Characteristic Fruit Trees in South Xinjiang, Tarim University, Alar, China
- Key Lab of Xinjiang Production and Construction Corps in Comprehensive Agricultural Pest Management in Southern Xinjiang, Tarim University, Alar, China
| | - Wangbin Zhang
- The National and Local Joint Engineering Laboratory of High Efficiency and Superior-Quality Cultivation and Fruit Deep Processing Technology of Characteristic Fruit Trees in South Xinjiang, Tarim University, Alar, China
- Key Lab of Xinjiang Production and Construction Corps in Comprehensive Agricultural Pest Management in Southern Xinjiang, Tarim University, Alar, China
| | - Songdou Zhang
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
- Sanya Institute of China Agricultural University, Sanya City, China
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59
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Wang M, Zheng LW, Ma S, Zhao DH, Xu Y. The gut microbiota: emerging biomarkers and potential treatments for infertility-related diseases. Front Cell Infect Microbiol 2024; 14:1450310. [PMID: 39391885 PMCID: PMC11464459 DOI: 10.3389/fcimb.2024.1450310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Accepted: 09/03/2024] [Indexed: 10/12/2024] Open
Abstract
Infertility is a disease of impaired fertility. With socioeconomic development, changes in human lifestyles, and increased environmental pollution, the problem of low human fertility has become increasingly prominent. The incidence of global infertility is increasing every year. Many factors lead to infertility, and common female factors include tubal factors, ovulation disorders, endometriosis, and immune factors. The gut microbiota is involved in many physiological processes, such as nutrient absorption, intestinal mucosal growth, glycolipid metabolism, and immune system regulation. An altered gut flora is associated with female infertility disorders such as polycystic ovary syndrome (PCOS), endometriosis (EMs), and premature ovarian failure (POF). Dysbiosis of the gut microbiota directly or indirectly contributes to the development of female infertility disorders, which also affect the homeostasis of the gut microbiota. Identifying the etiology and pathogenesis of infertility in patients is the focus of reproductive medicine physicians. We studied the developmental mechanism between the gut microbiota and PCOS, EMs, and POF from a new perspective, providing new ideas for diagnosing and treating female infertility diseases and specific reference values for eugenics.
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Affiliation(s)
- Min Wang
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
| | - Lian-Wen Zheng
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
| | - Shuai Ma
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
| | - Dong-Hai Zhao
- Department of Pathology, Jilin Medical University, Jilin, China
| | - Ying Xu
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
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Kaur T, Brown AM. Discovery of a novel Wolbachia in Heterodera expands nematode host distribution. Front Microbiol 2024; 15:1446506. [PMID: 39386366 PMCID: PMC11461310 DOI: 10.3389/fmicb.2024.1446506] [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: 06/13/2024] [Accepted: 09/09/2024] [Indexed: 10/12/2024] Open
Abstract
Bioinformatics sequence data mining can reveal hidden microbial symbionts that might normally be filtered and removed as contaminants. Data mining can be helpful to detect Wolbachia, a widespread bacterial endosymbiont in insects and filarial nematodes whose distribution in plant-parasitic nematodes (PPNs) remains underexplored. To date, Wolbachia has only been reported a few PPNs, yet nematode-infecting Wolbachia may have been widespread in the evolutionary history of the phylum based on evidence of horizontal gene transfers, suggesting there may be undiscovered Wolbachia infections in PPNs. The goal of this study was to more broadly sample PPN Wolbachia strains in tylenchid nematodes to enable further comparative genomic analyses that may reveal Wolbachia's role and identify targets for biocontrol. Published whole-genome shotgun assemblies and their raw sequence data from 33 Meloidogyne spp. assemblies, seven Globodera spp. assemblies, and seven Heterodera spp. assemblies were analyzed to look for Wolbachia. No Wolbachia was found in Meloidogyne spp. and Globodera spp., but among seven genome assemblies for Heterodera spp., an H. schachtii assembly from the Netherlands was found to have a large Wolbachia-like sequence that, when re-assembled from reads, formed a complete, circular genome. Detailed analyses comparing read coverage, GC content, pseudogenes, and phylogenomic patterns clearly demonstrated that the H. schachtii Wolbachia represented a novel strain (hereafter, denoted wHet). Phylogenomic tree construction with PhyloBayes showed wHet was most closely related to another PPN Wolbachia, wTex, while 16S rRNA gene analysis showed it clustered with other Heterodera Wolbachia assembled from sequence databases. Pseudogenes in wHet suggested relatedness to the PPN clade, as did the lack of significantly enriched GO terms compared to PPN Wolbachia strains. It remains unclear whether the lack of Wolbachia in other published H. schachtii isolates represents the true absence of the endosymbiont from some hosts.
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Affiliation(s)
| | - Amanda M.V. Brown
- Department of Biological Sciences, Texas Tech University, Lubbock, TX, United States
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No JS, Noh JY, Lee CY, Kim IH, Kim JA, Ahn YJ, Lee H, Kim JM, Lee NJ, Lee DW, Kwon JH, Rhee J, Kim EJ. Dynamics of SARS-CoV-2 variants during the XBB wave in the Republic of Korea. Virus Res 2024; 350:199471. [PMID: 39306246 PMCID: PMC11460502 DOI: 10.1016/j.virusres.2024.199471] [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: 02/28/2024] [Revised: 09/13/2024] [Accepted: 09/19/2024] [Indexed: 09/28/2024]
Abstract
As COVID-19 has become endemic, SARS-CoV-2 variants are becoming increasingly diverse, underscoring the escalating importance of global genomic surveillance. This study analyzed 86,762 COVID-19 samples identified in the Republic of Korea from September 2022 to November 2023. The results revealed a consistent increase in the prevalence of the XBB variants following the dominance of BN.1, with various XBB sub-lineages co-circulating in the Republic of Korea. The overall nucleotide diversity (π) among the SARS-CoV-2 genomes was 0.00155. Evolutionary analysis revealed that the average time interval between the first detection and estimated date of the most recent common ancestor of Korean XBB sub-lineages was 47 d, suggesting that the novel variants were efficiently identified in the Korean surveillance system. The mutation rate was determined to be in the range of 5.6 × 10-4 to 9.1 × 10-4 substitutions/site/year. In conclusion, this study provides insights into the genetic diversity and evolutionary interpretation of the XBB sub-lineages during the XBB wave in the Republic of Korea, highlighting the importance of continued genomic surveillance for emerging variants.
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Affiliation(s)
- Jin Sun No
- Division of Emerging Infectious Diseases, Department of Laboratory Diagnosis and Analysis, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Ji Yeong Noh
- Division of Emerging Infectious Diseases, Department of Laboratory Diagnosis and Analysis, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Chae Young Lee
- Division of Emerging Infectious Diseases, Department of Laboratory Diagnosis and Analysis, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Il-Hwan Kim
- Division of Emerging Infectious Diseases, Department of Laboratory Diagnosis and Analysis, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Jeong-Ah Kim
- Division of Emerging Infectious Diseases, Department of Laboratory Diagnosis and Analysis, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Yu Jeong Ahn
- Division of Emerging Infectious Diseases, Department of Laboratory Diagnosis and Analysis, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Hyeokjin Lee
- Division of Emerging Infectious Diseases, Department of Laboratory Diagnosis and Analysis, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Jeong-Min Kim
- Division of Emerging Infectious Diseases, Department of Laboratory Diagnosis and Analysis, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Nam-Joo Lee
- Division of Emerging Infectious Diseases, Department of Laboratory Diagnosis and Analysis, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Dong-Wook Lee
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jeong-Hoon Kwon
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - JeeEun Rhee
- Division of Emerging Infectious Diseases, Department of Laboratory Diagnosis and Analysis, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Eun-Jin Kim
- Division of Emerging Infectious Diseases, Department of Laboratory Diagnosis and Analysis, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea.
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Yang H, Ran S, Zhou Y, Shi Q, Yu J, Wang W, Sun C, Li D, Hu Y, Pan C, Yuan Q, Zhen Y, Liu Q, Song L. Exposure to Succinate Leads to Steatosis in Non-Obese Non-Alcoholic Fatty Liver Disease by Inhibiting AMPK/PPARα/FGF21-Dependent Fatty Acid Oxidation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:21052-21064. [PMID: 39268842 DOI: 10.1021/acs.jafc.4c05671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/15/2024]
Abstract
Succinate is an important metabolite and a critical chemical with diverse applications in the food, pharmaceutical, and agriculture industries. Recent studies have demonstrated several protective or detrimental functions of succinate in diseases; however, the effect of succinate on lipid metabolism is still unclear. Here, we identified a role of succinate in nonobese nonalcoholic fatty liver disease (NAFLD). Specifically, the level of succinate is increased in the livers and serum of mice with hepatic steatosis. The administration of succinate promotes triglyceride (TG) deposition and hepatic steatosis by suppressing fatty acid oxidation (FAO) in nonobese NAFLD mouse models. RNA-Seq revealed that succinate suppressed fibroblast growth factor 21 (FGF21) expression. Then, the restoration of FGF21 was sufficient to alleviate hepatic steatosis and FAO inhibition induced by succinate treatment in vitro and in vivo. Furthermore, the inhibition of FGF21 expression and FAO mediated by succinate was dependent on the AMPK/PPARα axis. This study provides evidence linking succinate exposure to abnormal hepatic lipid metabolism and the progression of nonobese NAFLD.
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Affiliation(s)
- Hong Yang
- Department of Gastroenterology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Suye Ran
- Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Yuxia Zhou
- Department of Pathophysiology, Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Qing Shi
- Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Jiangnan Yu
- Department of Gastroenterology, Guizhou Hospital of the First Affiliated Hospital, Sun Yat-sen University, Guiyang, Guizhou 550000, China
| | - Wenjuan Wang
- Department of Gastroenterology, Xingyi People's Hospital, Xingyi, Guizhou 562400, China
| | - Chengqin Sun
- Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Dengke Li
- Luoyang Vocational and Technical College, Luoyang, Henan 471000, China
| | - Yue Hu
- Department of Gastroenterology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Chen Pan
- Department of Gastroenterology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Qi Yuan
- Department of Gastroenterology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Yunhuan Zhen
- Department of Colorectal Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Qi Liu
- Department of Gastroenterology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Lingyu Song
- Department of Gastroenterology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
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Li S, Liu M, Han Y, Liu C, Cao S, Cui Y, Zhu X, Wang Z, Liu B, Shi Y. Gut microbiota-derived gamma-aminobutyric acid improves host appetite by inhibiting satiety hormone secretion. mSystems 2024:e0101524. [PMID: 39315776 DOI: 10.1128/msystems.01015-24] [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: 07/26/2024] [Accepted: 08/27/2024] [Indexed: 09/25/2024] Open
Abstract
Globally, appetite disorders have become an increasingly prominent public health issue. While short-term appetite loss may seem relatively harmless, prolonged instances can lead to serious physical and mental damage. In recent years, numerous studies have highlighted the significant role of the "microbiota-gut-brain" axis in the regulation of feeding behavior in organisms, suggesting that targeting the gut microbiota may be a novel therapeutic strategy for appetite disorders. However, the molecular mechanisms through which the gut microbiota mediates the increase in host appetite and the causal relationship between the two remain unclear. Based on this, we conducted 16S rRNA sequencing to analyze the gut microbiota of rabbits with high and low feed intake, followed by fecal microbiota transplantation (FMT) and metabolite gavage experiments to elucidate the underlying mechanisms. Our research indicates that the high feed intake group exhibited significant enrichment of the g__Bacteroides and gamma-aminobutyric acid (GABA), and intragastric administration of GABA effectively promoted the host's feeding behavior. The underlying mechanism involves GABA derived from the gut microbiota inhibiting the secretion of satiety hormones to enhance the host's feeding behavior. Furthermore, the results of FMT suggest that differences in gut microbiota composition may be a contributing factor to varying levels of feed intake in the host. In conclusion, these findings emphasize the role of the gut microbiota-derived GABA, in increasing host feed intake, offering a new target for the treatment of appetite disorders from the perspective of gut microbiota.IMPORTANCEThe incidence of anorexia is rapidly increasing and has become a global burden. Gut microbiota can participate in the regulation of host feeding behavior, yet the molecular mechanisms through which the gut microbiota mediates the increase in host appetite and the causal relationship between them remain unclear. In this study, we utilized 16S rRNA sequencing to investigate the composition of the gut microbiota in rabbits with varying levels of feed intake and employed fecal microbiota transplantation and gastric infusion experiments with gamma-aminobutyric acid (GABA) to elucidate the potential mechanisms involved. GABA derived from the gut microbiota can effectively enhance the host's feeding behavior by inhibiting the secretion of satiety hormones. This discovery underscores the pivotal role of the gut microbiota in modulating host appetite, offering novel research avenues and therapeutic targets for appetite disorders.
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Affiliation(s)
- Shouren Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Mengqi Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Yao Han
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Cong Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Shixi Cao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Yalei Cui
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou, China
- Henan Forage Engineering Technology Research Center, Zhengzhou, Henan, China
| | - Xiaoyan Zhu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou, China
- Henan Forage Engineering Technology Research Center, Zhengzhou, Henan, China
| | - Zhichang Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou, China
- Henan Forage Engineering Technology Research Center, Zhengzhou, Henan, China
| | - Boshuai Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou, China
- Henan Forage Engineering Technology Research Center, Zhengzhou, Henan, China
| | - Yinghua Shi
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou, China
- Henan Forage Engineering Technology Research Center, Zhengzhou, Henan, China
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Cornu Hewitt B, Bossers A, van Kersen W, de Rooij MMT, Smit LAM. Associations between acquired antimicrobial resistance genes in the upper respiratory tract and livestock farm exposures: a case-control study in COPD and non-COPD individuals. J Antimicrob Chemother 2024:dkae335. [PMID: 39315772 DOI: 10.1093/jac/dkae335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 09/06/2024] [Indexed: 09/25/2024] Open
Abstract
BACKGROUND Livestock-related emissions have been associated with aggravations of respiratory symptoms in patients with chronic obstructive pulmonary disease (COPD), potentially by altering the respiratory resistome. OBJECTIVES This study investigates the structure of the acquired oropharyngeal (OP) resistome of patients with COPD and controls, its interplay with the respiratory microbiome and associations with residential livestock exposure. METHODS In a matched case-control study in the rural Netherlands, we analysed OP swabs from 35 patients with COPD and 34 controls, none of whom had used antibiotics in the preceding 4 weeks. Resistome profiling was performed using ResCap, complemented by prior characterization of the microbiome via 16S rRNA-based sequencing. Residential livestock farm exposure was defined using distance-based variables alongside modelled concentrations of livestock-emitted microbial pollutants. We compared resistome profiles between patients with COPD and controls, examining alpha and beta diversity as well as differential abundance. Additionally, we assessed the interplay between the resistome and microbiome using co-occurrence networks and Procrustes analysis. Variations in resistome profiles were also analysed based on residential livestock exposures. RESULTS Patients with COPD exhibited higher resistome diversity than controls (Shannon diversity, P = 0.047), though resistome composition remained similar between groups (PERMANOVA, P = 0.19). Significant correlations were observed between the OP resistome and microbiome compositions, with distinct patterns in co-occurrence networks. Residential exposure to livestock farms was not associated with resistome alterations. CONCLUSIONS Our findings reveal the COPD airway as a hospitable environment for antimicrobial resistance genes, irrespective of recent antimicrobial usage. Demonstrating the interplay between the resistome and microbiome, our study underscores the importance of a deeper understanding of the resistome in respiratory health.
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Affiliation(s)
- Beatrice Cornu Hewitt
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80178, Utrecht 3508 TD, The Netherlands
| | - Alex Bossers
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80178, Utrecht 3508 TD, The Netherlands
| | - Warner van Kersen
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80178, Utrecht 3508 TD, The Netherlands
| | - Myrna M T de Rooij
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80178, Utrecht 3508 TD, The Netherlands
| | - Lidwien A M Smit
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80178, Utrecht 3508 TD, The Netherlands
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Clavero-Camacho I, Ruiz-Cuenca AN, Cantalapiedra-Navarrete C, Castillo P, Palomares-Rius JE. Diversity of microbial, biocontrol agents and nematode abundance on a susceptible Prunus rootstock under a Meloidogyne root gradient infection. FRONTIERS IN PLANT SCIENCE 2024; 15:1386535. [PMID: 39376243 PMCID: PMC11456498 DOI: 10.3389/fpls.2024.1386535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 09/02/2024] [Indexed: 10/09/2024]
Abstract
Root-knot nematodes (RKNs) of the genus Meloidogyne are one of the most damaging genera to cultivated woody plants with a worldwide distribution. The knowledge of the soil and rhizosphere microbiota of almonds infested with Meloidogyne could help to establish new sustainable and efficient management strategies. However, the soil microbiota interaction in deciduous woody plants infected with RKNs is scarcely studied. This research was carried out in six commercial almond groves located in southern Spain and infested with different levels of Meloidogyne spp. within each grove. Several parameters were measured: nematode assemblages, levels and biocontrol agents in Meloidogyne's eggs, levels of specific biocontrol agents in rhizoplane and soil, levels of bacteria and fungi in rhizoplane and soil, fungal and bacterial communities by high-throughput sequencing of internal transcribed spacer (ITS), and 16S rRNA gene in soil and rhizosphere of the susceptible almond hybrid rootstock GF-677 infested with Meloidogyne spp. The studied almond groves showed soil degradation by nematode assemblies and fungi:bacterial ratio. Fungal parasites of Meloidogyne eggs were found in 56.25% of the samples. However, the percentage of parasitized eggs by fungi ranged from 1% to 8%. Three fungal species were isolated from Meloidogyne eggs, specifically Pochonia chlamydosporia, Purpureocillium lilacinum, and Trichoderma asperellum. The diversity and composition of the microbial communities were more affected by the sample type (soil vs rhizosphere) and by the geographical location of the samples than by the Meloidogyne density, which could be explained by the vigorous hybrid rootstock GF-677 and a possible dilution effect. However, the saprotrophic function in the functional guilds of the fungal ASV was increased in the highly infected roots vs the low infected roots. These results indicate that the presence of biocontrol agents in almond fields and the development of new management strategies could increase their populations to control partially RKN infection levels.
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Affiliation(s)
- Ilenia Clavero-Camacho
- Institute for Sustainable Agriculture (IAS), Spanish National Research Council (CSIC), Cordoba, Spain
- Instituto de Estudios de Postgrado, Departamento de Agronomía, Universidad de Córdoba, Cordoba, Spain
| | - Alba N. Ruiz-Cuenca
- Institute for Sustainable Agriculture (IAS), Spanish National Research Council (CSIC), Cordoba, Spain
- Departament of Animal Plant Biology and Ecology, Universidad de Jaén, Jaén, Spain
| | | | - Pablo Castillo
- Institute for Sustainable Agriculture (IAS), Spanish National Research Council (CSIC), Cordoba, Spain
| | - Juan E. Palomares-Rius
- Institute for Sustainable Agriculture (IAS), Spanish National Research Council (CSIC), Cordoba, Spain
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Ma Z, Zuo T, Frey N, Rangrez AY. A systematic framework for understanding the microbiome in human health and disease: from basic principles to clinical translation. Signal Transduct Target Ther 2024; 9:237. [PMID: 39307902 PMCID: PMC11418828 DOI: 10.1038/s41392-024-01946-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 07/03/2024] [Accepted: 08/01/2024] [Indexed: 09/26/2024] Open
Abstract
The human microbiome is a complex and dynamic system that plays important roles in human health and disease. However, there remain limitations and theoretical gaps in our current understanding of the intricate relationship between microbes and humans. In this narrative review, we integrate the knowledge and insights from various fields, including anatomy, physiology, immunology, histology, genetics, and evolution, to propose a systematic framework. It introduces key concepts such as the 'innate and adaptive genomes', which enhance genetic and evolutionary comprehension of the human genome. The 'germ-free syndrome' challenges the traditional 'microbes as pathogens' view, advocating for the necessity of microbes for health. The 'slave tissue' concept underscores the symbiotic intricacies between human tissues and their microbial counterparts, highlighting the dynamic health implications of microbial interactions. 'Acquired microbial immunity' positions the microbiome as an adjunct to human immune systems, providing a rationale for probiotic therapies and prudent antibiotic use. The 'homeostatic reprogramming hypothesis' integrates the microbiome into the internal environment theory, potentially explaining the change in homeostatic indicators post-industrialization. The 'cell-microbe co-ecology model' elucidates the symbiotic regulation affecting cellular balance, while the 'meta-host model' broadens the host definition to include symbiotic microbes. The 'health-illness conversion model' encapsulates the innate and adaptive genomes' interplay and dysbiosis patterns. The aim here is to provide a more focused and coherent understanding of microbiome and highlight future research avenues that could lead to a more effective and efficient healthcare system.
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Affiliation(s)
- Ziqi Ma
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany.
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/Mannheim, Heidelberg, Germany.
| | - Tao Zuo
- Key Laboratory of Human Microbiome and Chronic Diseases (Sun Yat-sen University), Ministry of Education, Guangzhou, China
- Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Norbert Frey
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany.
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/Mannheim, Heidelberg, Germany.
| | - Ashraf Yusuf Rangrez
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany.
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/Mannheim, Heidelberg, Germany.
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Daigle A, Johri P. Hill-Robertson interference may bias the inference of fitness effects of new mutations in highly selfing species. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.06.579142. [PMID: 38370745 PMCID: PMC10871249 DOI: 10.1101/2024.02.06.579142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
The accurate estimation of the distribution of fitness effects (DFE) of new mutations is critical for population genetic inference but remains a challenging task. While various methods have been developed for DFE inference using the site frequency spectrum of putatively neutral and selected sites, their applicability in species with diverse life history traits and complex demographic scenarios is not well understood. Selfing is common among eukaryotic species and can lead to decreased effective recombination rates, increasing the effects of selection at linked sites, including interference between selected alleles. We employ forward simulations to investigate the limitations of current DFE estimation approaches in the presence of selfing and other model violations, such as linkage, departures from semidominance, population structure, and uneven sampling. We find that distortions of the site frequency spectrum due to Hill-Robertson interference in highly selfing populations lead to mis-inference of the deleterious DFE of new mutations. Specifically, when inferring the distribution of selection coefficients, there is an overestimation of nearly neutral and strongly deleterious mutations and an underestimation of mildly deleterious mutations when interference between selected alleles is pervasive. In addition, the presence of cryptic population structure with low rates of migration and uneven sampling across subpopulations leads to the false inference of a deleterious DFE skewed towards effectively neutral/mildly deleterious mutations. Finally, the proportion of adaptive substitutions estimated at high rates of selfing is substantially overestimated. Our observations apply broadly to species and genomic regions with little/no recombination and where interference might be pervasive.
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Affiliation(s)
- Austin Daigle
- Department of Biology, University of North Carolina, Chapel Hill, NC 27599
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27599
- Curriculum in Bioinformatics and Computational Biology, University of North Carolina, Chapel Hill, NC 27599
| | - Parul Johri
- Department of Biology, University of North Carolina, Chapel Hill, NC 27599
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27599
- Integrative Program for Biological & Genome Sciences, University of North Carolina, Chapel Hill, NC 27599
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Tamarelle J, Thiébaut ACM, de Barbeyrac B, Bébéar C, Bourret A, Fauconnier A, Ravel J, Delarocque-Astagneau E. Vaginal microbiota stability over 18 months in young student women in France. Eur J Clin Microbiol Infect Dis 2024:10.1007/s10096-024-04943-3. [PMID: 39302529 DOI: 10.1007/s10096-024-04943-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 09/10/2024] [Indexed: 09/22/2024]
Abstract
PURPOSE Non-optimal vaginal microbiota lacking lactobacilli and comprising a wide array of anaerobic bacteria, typified by community state type (CST) IV, have been associated with adverse gynecological and pregnancy outcomes. Here, we investigate the stability of the vaginal microbiota sampled every 6 months over 18 months and how samples distantly collected combined with exposures could provide insight on future microbiota compositional changes. METHODS Vaginal microbiota dynamics were analyzed in 241 female students aged 18-24 years and negative for Chlamydia trachomatis and Neisseria gonorrhoeae. The vaginal microbiota was characterized using 16S rRNA gene amplicon sequencing and assigned to CSTs. Vaginal microbiota longitudinal profiles were determined through hierarchical clustering. RESULTS At baseline, 11.2% of participants had a CST IV, 40.5% a CST I (Lactobacillus crispatus-dominated), and 38.1% a CST III (Lactobacillus iners-dominated). A total of 345 CST transitions were observed over the study period. Pain during sexual intercourse was associated with a higher probability of transition from CST III to CST IV, while self-reported yeast infection was associated with a higher probability of transition from CST IV to CST I. Over the study period, 32.0% participants displayed a stable CST trajectory. Composition of the vaginal microbiota of a single sample predicted with good accuracy the CST trajectory over the following 18 months. CONCLUSION Vaginal longitudinal CST patterns over 18 months could be clustered into three main groups of trajectories. Performing molecular characterization at a single time point could contribute to improved preventive care and optimization of young women's reproductive and sexual health. CLINICALTRIALS gov Identifier: NCT02904811. Registration date: September 19, 2016.
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Affiliation(s)
- Jeanne Tamarelle
- Epidemiology and Modelling of Antibiotic Evasion Unit, Institut Pasteur, 75475, Paris, France
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | - Anne C M Thiébaut
- High Dimensional Biostatistics for Drug Safety and Genomics Team, Université Paris-Saclay, UVSQ, Inserm, CESP, 94807, Villejuif, France.
| | - Bertille de Barbeyrac
- Bacteriology department, Bordeaux University Hospital, French National Reference Center for Bacterial STIs, 33000, Bordeaux, France
| | - Cécile Bébéar
- Bacteriology department, Bordeaux University Hospital, French National Reference Center for Bacterial STIs, 33000, Bordeaux, France
- Univ. Bordeaux, CNRS, Microbiologie Fondamentale et Pathogénicité, UMR 5234, 33000, Bordeaux, France
| | - Antoine Bourret
- Faculté de Médecine, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Assistance Publique des Hôpitaux de Paris (AP-HP), Service de Gynécologie, Hôpital Universitaire Paris Centre (HUPC), Obstétrique II, Paris, France
| | - Arnaud Fauconnier
- Unité de Recherche 7285 « Risques Cliniques Et Sécurité en Santé Des Femmes Et en Santé Périnatale » (RISCQ), Université Paris-Saclay, UVSQ, 78180, Montigny-Le-Bretonneux, France
- Centre Hospitalier Intercommunal de Poissy-Saint-Germain-en-Laye, Service de Gynécologie & Obstétrique, 78300, Poissy, France
| | - Jacques Ravel
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Elisabeth Delarocque-Astagneau
- Anti-Infective Evasion and Pharmacoepidemiology Team, Université Paris-Saclay, UVSQ, Inserm, CESP, 78180, Montigny-le-Bretonneux, France
- Raymond Poincaré Hospital, Epidemiology and Public Health Department, AP-HP, GHU Paris-Saclay University, 92380, Garches, France
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Carlucci P, Spataro F, Cristallo M, Di Gioacchino M, Nettis E, Gangemi S. Immune-Molecular Link between Thyroid and Skin Autoimmune Diseases: A Narrative Review. J Clin Med 2024; 13:5594. [PMID: 39337081 PMCID: PMC11433455 DOI: 10.3390/jcm13185594] [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: 08/12/2024] [Revised: 09/14/2024] [Accepted: 09/19/2024] [Indexed: 09/30/2024] Open
Abstract
Autoimmune skin disorders, including Psoriasis, Lichen Planus, Vitiligo, Atopic Dermatitis, and Alopecia Areata, arise from a combination of genetic predisposition, external factors, and immunological dysfunction. It is well-documented that there is a strong correlation between autoimmune thyroid diseases and a range of dermatological disorders, especially urticaria. This review investigates possible links between autoimmune thyroiditis and a broader spectrum of autoimmune skin conditions, analyzing shared genetic markers, immunological mechanisms, and clinical correlations. Common pathogenic mechanisms include disrupted immune tolerance and oxidative stress, leading to chronic inflammation. Genetic factors, such as IL-23 receptor gene variants, increase the risk for Psoriasis, Alopecia Areata, and Hashimoto's thyroiditis. Additionally, CTLA-4 mutations enhance susceptibility to autoimmune thyroid and skin disorders. Shared genetic susceptibility was also reported in Lichen Planus and Vitilgo, even if different genetic loci might be involved. The breakdown of the immune system can determine a pro-inflammatory state, facilitating the development of autoimmunity and auto-antibody cross-reactions. The presence of similar antigens in skin cells and thyrocytes might explain why both tissues are affected. The significant overlap between these conditions emphasizes the necessity for a comprehensive diagnosis workup and treatment. Future research should focus on clarifying specific immunological pathways and identifying novel biomarkers.
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Affiliation(s)
- Palma Carlucci
- Department of Emergency and Organ Transplantation, School of Allergology and Clinical Immunology, University of Bari Aldo Moro, 70126 Bari, Italy
| | - Federico Spataro
- Department of Emergency and Organ Transplantation, School of Allergology and Clinical Immunology, University of Bari Aldo Moro, 70126 Bari, Italy
| | - Mattia Cristallo
- Department of Emergency and Organ Transplantation, School of Allergology and Clinical Immunology, University of Bari Aldo Moro, 70126 Bari, Italy
| | - Mario Di Gioacchino
- Center for Advanced Studies and Technology (CAST), G. D'Annunzio University of Chieti-Pescara, 66100 Chieti, Italy
- Institute of Clinical Immunotherapy and Advanced Biological Treatments, 65100 Pescara, Italy
| | - Eustachio Nettis
- Department of Emergency and Organ Transplantation, School of Allergology and Clinical Immunology, University of Bari Aldo Moro, 70126 Bari, Italy
| | - Sebastiano Gangemi
- Department of Clinical and Experimental Medicine, University of Messina, 98124 Messina, Italy
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Holmes EC, Krammer F, Goodrum FD. Virology-The next fifty years. Cell 2024; 187:5128-5145. [PMID: 39303682 PMCID: PMC11467463 DOI: 10.1016/j.cell.2024.07.025] [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: 02/29/2024] [Revised: 07/08/2024] [Accepted: 07/15/2024] [Indexed: 09/22/2024]
Abstract
Virology has made enormous advances in the last 50 years but has never faced such scrutiny as it does today. Herein, we outline some of the major advances made in virology during this period, particularly in light of the COVID-19 pandemic, and suggest some areas that may be of research importance in the next 50 years. We focus on several linked themes: cataloging the genomic and phenotypic diversity of the virosphere; understanding disease emergence; future directions in viral disease therapies, vaccines, and interventions; host-virus interactions; the role of viruses in chronic diseases; and viruses as tools for cell biology. We highlight the challenges that virology will face moving forward-not just the scientific and technical but also the social and political. Although there are inherent limitations in trying to outline the virology of the future, we hope this article will help inspire the next generation of virologists.
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Affiliation(s)
- Edward C. Holmes
- School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia
- Laboratory of Data Discovery for Health Limited, Hong Kong SAR, China
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VaRPP), Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Pathology, Molecular and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Felicia D. Goodrum
- Department of Immunobiology, BIO5 Institute, University of Arizona, Tucson, Arizona, USA
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Falara E, Metallinou D, Nanou C, Vlachou M, Diamanti A. Perinatal Exposure to Tobacco Smoke and Its Association with the Maternal and Offspring Microbiome: A Systematic Review. Healthcare (Basel) 2024; 12:1874. [PMID: 39337215 PMCID: PMC11431162 DOI: 10.3390/healthcare12181874] [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: 06/30/2024] [Revised: 09/11/2024] [Accepted: 09/12/2024] [Indexed: 09/30/2024] Open
Abstract
BACKGROUND The human microbiome, comprising trillions of microorganisms, significantly influences human health and disease. During critical periods like the perinatal phase, the microbiome undergoes significant changes, impacting lifelong health. Tobacco smoke, a known environmental pollutant, has adverse effects on health, particularly during pregnancy. Despite this, its association with the perinatal microbiome remains understudied. METHODS We conducted a systematic review to integrate findings on perinatal tobacco smoke exposure and its association with the maternal and neonatal microbiomes. We conducted a comprehensive literature search in the PubMed, Scopus, and Web of Science databases from January 2000 to February 2024. We selected studies that met predefined inclusion criteria and performed data extraction. RESULTS The review included eight studies that revealed diverse associations of perinatal tobacco exposure with the maternal and neonatal microbiome. Active smoking during pregnancy was linked to alterations in microbiome composition and diversity in children. Maternal smoking correlated with increased Firmicutes abundance and decreased Akkermansia muciniphila abundance in offspring. Additionally, exposure to thirdhand smoke in neonatal intensive care units was related to infant microbiome diversity. Infants exposed to tobacco smoke showed various microbial changes, suggesting potential implications for childhood health outcomes, including obesity risk. CONCLUSIONS Perinatal exposure to tobacco smoke exerts significant influence on the maternal and neonatal microbiomes, with potential implications for long-term health outcomes. Addressing socioeconomic and psychological barriers to smoking cessation, implementing stricter smoking regulations, and promoting public health campaigns are essential steps towards reducing tobacco-related harm during the perinatal period. Further longitudinal studies and standardized assessment methods are needed to validate these findings and guide the development of effective preventive measures.
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Affiliation(s)
| | | | | | - Maria Vlachou
- Department of Midwifery, Faculty of Health and Caring Sciences, University of West Attica, 12243 Egaleo, Greece; (E.F.); (D.M.); (C.N.); (A.D.)
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Peng Z, Liao Y, Yang W, Liu L. Metal(loid)-gut microbiota interactions and microbiota-related protective strategies: A review. ENVIRONMENT INTERNATIONAL 2024; 192:109017. [PMID: 39317009 DOI: 10.1016/j.envint.2024.109017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 09/14/2024] [Accepted: 09/16/2024] [Indexed: 09/26/2024]
Abstract
Human exposure to metal(loid)s has dramatically increased over the past five decades, which has triggered public concern worldwide. Recently, gut microbiota has been considered a target for metal(loid)s, and some literature has reviewed the interactions between gut microbiota and heavy metal(loid)s (HMs) with high toxicity. However, whether there is an interaction between gut microbiota and metal(loid)s with essential roles or some normal functions are far from clear to date. Importantly, in addition to traditional probiotics that have been clarified to alleviate the adverse effect of HMs on the body, some novel probiotics, prebiotics, synbiotics, and postbiotics may also exhibit comparable or even better abilities of metal(loid) remediation. In this review, we mainly outline and discuss recent research findings on the metal(loid)-gut microbiota interactions and microbiota-related protective strategies.
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Affiliation(s)
- Zhao Peng
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China; Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Yuxiao Liao
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China; Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Wei Yang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China; Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Liegang Liu
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China; Ministry of Education Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China.
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Parekh P, Serra M, Allaw M, Perra M, Pinna A, Manconi M, Morelli M. Extract from Nasco pomace loaded in nutriosomes exerts anti-inflammatory effects in the MPTP mouse model of Parkinson's disease. Exp Neurol 2024; 382:114958. [PMID: 39303846 DOI: 10.1016/j.expneurol.2024.114958] [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: 05/08/2024] [Revised: 08/24/2024] [Accepted: 09/13/2024] [Indexed: 09/22/2024]
Abstract
Neuroinflammation has recently emerged as a key event in Parkinson's disease (PD) pathophysiology and as a potential target for disease-modifying therapies. Plant-derived extracts, rich in bioactive phytochemicals with antioxidant properties, have shown potential in this regard. Yet their clinical utility is hampered by poor systemic availability and rapid metabolism. Recently, our group demonstrated that intragastric delivery of Nasco pomace extract via nutriosomes (NN), a novel nanoliposome formulation, contrasts the degeneration of nigrostriatal dopaminergic neurons in a subacute 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model of PD. In the present study, we investigated the impact of intragastric NN treatment on the reactivity of glial cells in the substantia nigra pars compacta (SNc) and caudate-putamen (CPu) of MPTP-treated mice. To this scope, in mice exposed to MPTP (20 mg/kg/day, × 4 days), we conducted immunohistochemistry analyses of glial fibrillary acidic protein (GFAP) and ionized calcium-binding adapter molecule 1 (IBA1) to assess the responsiveness of astrocytes and microglial cells, respectively. Additionally, we studied the co-localization of the pro-inflammatory interleukin (IL)-1β and tumor necrosis factor (TNF)-α with IBA1 to obtain insights into microglial phenotype. Immunohistochemical results showed that NN administration significantly mitigated astrogliosis and microgliosis in the CPu and SNc of mice receiving subacute MPTP treatment, with region-specific variations in anti-inflammatory efficacy. Remarkably, the CPu showed a heightened response to NN treatment, including a pronounced decrease in microglial IL-1β and TNF-α production. Altogether, these findings underscore the anti-inflammatory effects of NN treatment and provide a potential mechanism underlying the neuroprotective effects previously observed in a subacute MPTP mouse model of PD.
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Affiliation(s)
- Pathik Parekh
- Department of Biomedical Sciences, Section of Neuroscience, University of Cagliari, Cagliari, Italy; Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, NIH, Baltimore, MD, USA
| | - Marcello Serra
- Department of Biomedical Sciences, Section of Neuroscience, University of Cagliari, Cagliari, Italy.
| | - Mohamad Allaw
- Department of Life and Environmental Sciences, University of Cagliari, Italy
| | - Matteo Perra
- Department of Life and Environmental Sciences, University of Cagliari, Italy
| | - Annalisa Pinna
- National Research Council of Italy, Institute of Neuroscience, Cagliari, Italy
| | - Maria Manconi
- Department of Life and Environmental Sciences, University of Cagliari, Italy.
| | - Micaela Morelli
- Department of Biomedical Sciences, Section of Neuroscience, University of Cagliari, Cagliari, Italy; National Research Council of Italy, Institute of Neuroscience, Cagliari, Italy
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Noda T, Mizutani M, Harumoto T, Katsuno T, Koga R, Fukatsu T. Frequent and asymmetric cell division in endosymbiotic bacteria of cockroaches. Appl Environ Microbiol 2024:e0146624. [PMID: 39291985 DOI: 10.1128/aem.01466-24] [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: 07/24/2024] [Accepted: 08/30/2024] [Indexed: 09/19/2024] Open
Abstract
Many insects are obligatorily associated with and dependent on specific microbial species as essential mutualistic partners. In the host insects, such microbial mutualists are usually maintained in specialized cells or organs, called bacteriocytes or symbiotic organs. Hence, potentially exponential microbial growth cannot be realized but must be strongly constrained by spatial and resource limitations within the host cells or tissues. How such endosymbiotic bacteria grow, divide, and proliferate is important for understanding the interactions and dynamics underpinning intimate host-microbe symbiotic associations. Here we report that Blattabacterium, the ancient and essential endosymbiont of cockroaches, exhibits unexpectedly high rates of cell division (20%-58%) and, in addition, the cell division is asymmetric (average asymmetry index >1.5) when isolated from the German cockroach Blattella germanica. The asymmetric division of endosymbiont cells at high frequencies was observed irrespective of host tissues (fat bodies vs ovaries) or developmental stages (adults vs nymphs vs embryos) of B. germanica, and also observed in several different cockroach species. By contrast, such asymmetric and frequent cell division was observed neither in Buchnera, the obligatory bacterial endosymbiont of aphids, nor in Pantoea, the obligatory bacterial gut symbiont of stinkbugs. Comparative genomics of cell division-related genes uncovered that the Blattabacterium genome lacks the Min system genes that determine the cell division plane, which may be relevant to asymmetric cell division. These observations combined with comparative symbiont genomics provide insight into what processes and regulations may underpin the growth, division, and proliferation of such bacterial mutualists continuously constrained under within-host conditions.IMPORTANCEDiverse insects are dependent on specific bacterial mutualists for their survival and reproduction. Due to the long-lasting coevolutionary history, such symbiotic bacteria tend to exhibit degenerative genomes and suffer uncultivability. Because of their microbiological fastidiousness, the cell division patterns of such uncultivable symbiotic bacteria have been poorly described. Here, using fine microscopic and quantitative morphometric approaches, we report that, although bacterial cell division usually proceeds through symmetric binary fission, Blattabacterium, the ancient and essential endosymbiont of cockroaches, exhibits frequent and asymmetric cell division. Such peculiar cell division patterns were not observed with other uncultivable essential symbiotic bacteria of aphids and stinkbugs. Gene repertoire analysis revealed that the molecular machinery for regulating the bacterial cell division plane are lost in the Blattabacterium genome, suggesting the possibility that the general trend toward the reductive genome evolution of symbiotic bacteria may underpin their bizarre cytological/morphological traits.
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Affiliation(s)
- Tomohito Noda
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Masaki Mizutani
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Toshiyuki Harumoto
- Hakubi Center for Advanced Research, Kyoto University, Kyoto, Japan
- Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Tatsuya Katsuno
- Center for Anatomical Studies, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ryuichi Koga
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Takema Fukatsu
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan
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Kumar A, Green KM, Rawat M. A Comprehensive Overview of Postbiotics with a Special Focus on Discovery Techniques and Clinical Applications. Foods 2024; 13:2937. [PMID: 39335866 PMCID: PMC11431132 DOI: 10.3390/foods13182937] [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: 08/12/2024] [Revised: 09/06/2024] [Accepted: 09/13/2024] [Indexed: 09/30/2024] Open
Abstract
The increasing interest in postbiotics, a term gaining recognition alongside probiotics and prebiotics, aligns with a growing number of clinical trials demonstrating positive outcomes for specific conditions. Postbiotics present several advantages, including safety, extended shelf life, ease of administration, absence of risk, and patentability, making them more appealing than probiotics alone. This review covers various aspects, starting with an introduction, terminology, classification of postbiotics, and brief mechanisms of action. It emphasizes microbial metabolomics as the initial step in discovering novel postbiotics. Commonly employed techniques such as NMR, GC-MS, and LC-MS are briefly outlined, along with their application principles and limitations in microbial metabolomics. The review also examines existing research where these techniques were used to identify, isolate, and characterize postbiotics derived from different microbial sources. The discovery section concludes by highlighting challenges and future directions to enhance postbiotic discovery. In the second half of the review, we delve deeper into numerous published postbiotic clinical trials to date. We provide brief overviews of system-specific trial applications, their objectives, the postbiotics tested, and their outcomes. The review concludes by highlighting ongoing applications of postbiotics in extended clinical trials, offering a comprehensive overview of the current landscape in this evolving field.
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Affiliation(s)
- Anand Kumar
- Biochemistry and Biotechnology Group, Los Alamos National Laboratory, Bioscience Division, Los Alamos, NM 87545, USA;
| | - Katelyn M. Green
- Biochemistry and Biotechnology Group, Los Alamos National Laboratory, Bioscience Division, Los Alamos, NM 87545, USA;
| | - Manmeet Rawat
- Department of Medicine, The Penn State University College of Medicine, Hershey, PA 17033, USA;
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Cao L, Wan M, Xian Z, Zhou Y, Dong L, Huang F, Su D. Lacticaseibacillus casei- and Bifidobacterium breve-fermented red pitaya promotes beneficial microbial proliferation in the colon. Food Funct 2024; 15:9434-9445. [PMID: 39189643 DOI: 10.1039/d4fo02352h] [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: 08/28/2024]
Abstract
Red pitaya has been demonstrated to strongly inhibit α-glucosidase activity; however, the impact of red pitaya fermentation by probiotic bacteria on α-glucosidase inhibition remains unclear. In this study, six strains of lactic acid bacteria (Lactiplantibacillus plantarum, Lacticaseibacillus rhamnosus, Lactobacillus bulgaricus, Lacticaseibacillus casei, Lactobacillus acidophilus and Streptococcus thermophilus) and one strain of Bifidobacterium breve were utilized for the fermentation of red pitaya pulp. The α-glucosidase and α-amylase inhibition rates of red pitaya pulp were significantly greater after fermentation by Bifidobacterium breve and Lacticaseibacillus casei than by the other abovementioned strains. The LC group exhibited an α-glucosidase inhibition rate of 99%, with an α-amylase inhibition rate of 89.91%. In contrast, the BB group exhibited an α-glucosidase inhibition rate of 95.28%, accompanied by an α-amylase inhibition rate of 95.28%. Moreover, red pitaya pulp fermented with Bifidobacterium breve and Lacticaseibacillus casei produced a notable quantity of oligosaccharides, which was more than three times greater than that in the other groups. Furthermore, 16S rRNA high-throughput sequencing analysis was conducted to assess alterations in the composition of the gut microbiota. This revealed an increase in the abundance of Lactobacillus and Faecalibacterium in the pulp fermented by Bifidobacterium breve and Lacticaseibacillus casei, whereas the abundance of Sutterella decreased. Further analysis at the species level revealed that Bifidobacterium longum, Faecalibacterium prausnitzii, and Lactobacillus zeae were the dominant strains present during colonic fermentation. These results indicate a beneficial health trend associated with probiotic bacterial fermentation of red pitaya pulp, which is highly important for the development of functional products.
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Affiliation(s)
- Li Cao
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Mengxi Wan
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Zhixing Xian
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Yongqiang Zhou
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Lihong Dong
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510006, China.
| | - Fei Huang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510006, China.
| | - Dongxiao Su
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China.
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Yao S, Han JZ, Guo J, Wang X, Qian L, Wu H, Shi W, Zhu RJ, Wang JH, Dong SS, Cui LL, Wang Y, Guo Y, Yang TL. The Causal Relationships Between Gut Microbiota, Brain Volume, and Intelligence: A Two-Step Mendelian Randomization Analysis. Biol Psychiatry 2024; 96:463-472. [PMID: 38432522 DOI: 10.1016/j.biopsych.2024.02.1012] [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: 10/10/2023] [Revised: 02/05/2024] [Accepted: 02/23/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Growing evidence indicates that dynamic changes in gut microbiome can affect intelligence; however, whether these relationships are causal remains elusive. We aimed to disentangle the poorly understood causal relationship between gut microbiota and intelligence. METHODS We performed a 2-sample Mendelian randomization (MR) analysis using genetic variants from the largest available genome-wide association studies of gut microbiota (N = 18,340) and intelligence (N = 269,867). The inverse-variance weighted method was used to conduct the MR analyses complemented by a range of sensitivity analyses to validate the robustness of the results. Considering the close relationship between brain volume and intelligence, we applied 2-step MR to evaluate whether the identified effect was mediated by regulating brain volume (N = 47,316). RESULTS We found a risk effect of the genus Oxalobacter on intelligence (odds ratio = 0.968 change in intelligence per standard deviation increase in taxa; 95% CI, 0.952-0.985; p = 1.88 × 10-4) and a protective effect of the genus Fusicatenibacter on intelligence (odds ratio = 1.053; 95% CI, 1.024-1.082; p = 3.03 × 10-4). The 2-step MR analysis further showed that the effect of genus Fusicatenibacter on intelligence was partially mediated by regulating brain volume, with a mediated proportion of 33.6% (95% CI, 6.8%-60.4%; p = .014). CONCLUSIONS Our results provide causal evidence indicating the role of the microbiome in intelligence. Our findings may help reshape our understanding of the microbiota-gut-brain axis and development of novel intervention approaches for preventing cognitive impairment.
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Affiliation(s)
- Shi Yao
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China; Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China; National and Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ji-Zhou Han
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jing Guo
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xin Wang
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Long Qian
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Hao Wu
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Wei Shi
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ren-Jie Zhu
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jia-Hao Wang
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Shan-Shan Dong
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Li-Li Cui
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yan Wang
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yan Guo
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
| | - Tie-Lin Yang
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China; National and Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
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Qin H, Liu J, Li YY, Xu YL, Yan YF. Gender-specific microbial signatures in saliva: Unveiling the association between the oral microbiome and the pathogenesis of glioma. Heliyon 2024; 10:e37284. [PMID: 39296230 PMCID: PMC11407923 DOI: 10.1016/j.heliyon.2024.e37284] [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: 03/21/2024] [Revised: 08/29/2024] [Accepted: 08/30/2024] [Indexed: 09/21/2024] Open
Abstract
The intricate interplay between the human oral microbiome and systemic health is increasingly being recognized, particularly in the context of central nervous system pathologies such as glioblastoma. In this study, we aimed to elucidate gender-specific differences in the salivary microbiome of glioma patients by utilizing 16S rRNA sequencing data from publicly available salivary microbiome datasets. We conducted comprehensive bioinformatics analysis, encompassing quality control, noise reduction, species classification, and microbial community composition analysis at various taxonomic levels. Machine learning algorithms were employed to identify microbial signatures associated with glioma. When compared to healthy controls, our analysis revealed distinct differences in the salivary microbiota of glioma patients. Notably, the genera Leptotrichia and Atopobium exhibited significant variations in abundance between genders. Leptotrichia was prevalent in healthy females but exhibited a reduced abundance in female glioma patients. In contrast, Atopobium was more abundant in male glioma patients. These findings suggest that hormonal influences might play a role in shaping the salivary microbiome and its association with glioma. We utilized a combination of LASSO-logistic regression and random forest models for feature selection, and identified key microbial features that differentiated glioma patients from healthy controls. We developed a diagnostic model with high predictive accuracy and area under the curve and principal component analysis metrics confirmed its robustness. The analysis of microbial markers, including Atopobium and Leptotrichia, highlighted the potential of the salivary microbiota as a non-invasive biomarker for the diagnosis and prognosis of glioma. Our findings highlight significant gender-specific disparities in the salivary microbiome of patients with glioma, offering new insights into the pathogenesis of glioma and paving the way for innovative diagnostic and therapeutic strategies. The use of saliva as a diagnostic fluid, given its ease of collection and non-invasive nature, holds immense promise for monitoring systemic health and the trajectory of disease. Future research should focus on investigating the underlying mechanisms by which the salivary microbiome influences the development of glioma and identifying potential microbiome-targeted therapies to enhance the management of glioma.
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Affiliation(s)
- Hao Qin
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jie Liu
- Department of Medical Records, Air Force Medical Center, PLA, Air Force Medical University, Beijing, China
| | - Yang-Yang Li
- Medical Center for Human Reproduction, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Ya-Lan Xu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Beijing, China
| | - Yi-Fang Yan
- State Key Laboratory of Female Fertility Promotion, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
- National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing, China
- Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, China
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Grayson C, Chalifoux O, Russo MDST, Avizonis DZ, Sterman S, Faerman B, Koufos O, Agellon LB, Mailloux RJ. Ablating the glutaredoxin-2 (Glrx2) gene protects male mice against non-alcoholic fatty liver disease (NAFLD) by limiting oxidative distress. Free Radic Biol Med 2024; 224:660-677. [PMID: 39278573 DOI: 10.1016/j.freeradbiomed.2024.09.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 08/22/2024] [Accepted: 09/12/2024] [Indexed: 09/18/2024]
Abstract
In the present study, we investigated the consequences of deleting the glutaredoxin-2 gene (Glrx2-/-) on the development of non-alcoholic fatty liver disease (NAFLD) in male and female C57BL6N mice fed a control (CD) or high-fat diet (HFD). We report that the HFD induced a significant increase in body mass in the wild-type (Wt) and Glrx2-/- male, but not female, mice, which was associated with the hypertrophying of the abdominal fat. Interestingly, while the Wt male mice fed the HFD developed NAFLD, the deletion of the Glrx2 gene mitigated vesicle formation, intrahepatic lipid accumulation, and fibrosis in the males. The protective effect associated with ablating the Glrx2 gene in male mice was due to enhancement of mitochondrial redox buffering capacity. Specifically, liver mitochondria from male Glrx2-/- fed a CD or HFD produced significantly less hydrogen peroxide (mtH2O2), had lower malondialdehyde levels, greater activities for glutathione peroxidase and thioredoxin reductase, and less protein glutathione mixed disulfides (PSSG) when compared to the Wt male mice fed the HFD. These effects correlated with the S-glutathionylation of α-ketoglutarate dehydrogenase (KGDH), a potent mtH2O2 source and key redox sensor in hepatic mitochondria. In comparison to the male mice, both Wt and Glrx2-/- female mice displayed almost complete resistance to HFD-induced body mass increases and the development of NAFLD, which was attributed to the superior redox buffering capacity of the liver mitochondria. Together, our findings show that modulation of mitochondrial S-glutathionylation signaling through Glrx2 augments resistance of male mice towards the development of NAFLD through preservation of mitochondrial redox buffering capacity. Additionally, our findings demonstrate the sex dimorphisms associated with the manifestation of NAFLD is related to the superior redox buffering capacity and modulation of the S-glutathionylome in hepatic mitochondria from female mice.
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Affiliation(s)
- Cathryn Grayson
- School of Human Nutrition, Faculty of Agricultural and Environmental Science, McGill University, Ste Anne de Bellevue, Québec, Canada
| | - Olivia Chalifoux
- School of Human Nutrition, Faculty of Agricultural and Environmental Science, McGill University, Ste Anne de Bellevue, Québec, Canada
| | - Mariana De Sa Tavares Russo
- Goodman Cancer Institute, McGill University, Qc, H3A 1A3, Montréal, Québec, Canada; Department of Medicine, McGill University, Qc, H3A 1A3, Montréal, Québec, Canada
| | - Daina Zofija Avizonis
- Goodman Cancer Institute, McGill University, Qc, H3A 1A3, Montréal, Québec, Canada; Department of Medicine, McGill University, Qc, H3A 1A3, Montréal, Québec, Canada
| | - Samantha Sterman
- School of Human Nutrition, Faculty of Agricultural and Environmental Science, McGill University, Ste Anne de Bellevue, Québec, Canada
| | - Ben Faerman
- School of Human Nutrition, Faculty of Agricultural and Environmental Science, McGill University, Ste Anne de Bellevue, Québec, Canada
| | - Olivia Koufos
- School of Human Nutrition, Faculty of Agricultural and Environmental Science, McGill University, Ste Anne de Bellevue, Québec, Canada
| | - Luis B Agellon
- School of Human Nutrition, Faculty of Agricultural and Environmental Science, McGill University, Ste Anne de Bellevue, Québec, Canada
| | - Ryan J Mailloux
- School of Human Nutrition, Faculty of Agricultural and Environmental Science, McGill University, Ste Anne de Bellevue, Québec, Canada.
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80
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Elahi R, Prigge ST. tRNA lysidinylation is essential for the minimal translation system found in the apicoplast of Plasmodium falciparum. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.09.13.612944. [PMID: 39314434 PMCID: PMC11419160 DOI: 10.1101/2024.09.13.612944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 09/25/2024]
Abstract
For decades, researchers have sought to define minimal genomes to elucidate the fundamental principles of life and advance biotechnology. tRNAs, essential components of this machinery, decode mRNA codons into amino acids. The apicoplast of malaria parasites encodes 25 tRNA isotypes in its organellar genome - the lowest number found in known translation systems. Efficient translation in such minimal systems depends heavily on post-transcriptional tRNA modifications, especially at the wobble anticodon position. Lysidine modification at the wobble position (C34) of tRNACAU distinguishes between methionine (AUG) and isoleucine (AUA) codons, altering the amino acid delivered by this tRNA and ensuring accurate protein synthesis. Lysidine is formed by the enzyme tRNA isoleucine lysidine synthetase (TilS) and is nearly ubiquitous in bacteria and essential for cellular viability. We identified a TilS ortholog (PfTilS) located in the apicoplast of Plasmodium falciparum parasites. By complementing PfTilS with a bacterial ortholog, we demonstrated that the lysidinylation activity of PfTilS is critical for parasite survival and apicoplast maintenance, likely due to its impact on apicoplast protein translation. Our findings represent the first characterization of TilS in an endosymbiotic organelle, advancing eukaryotic organelle research and our understanding of minimal translational machinery. Due to the absence of lysidine modifications in humans, this research also exposes a potential vulnerability in malaria parasites that could be targeted by antimalarial strategies.
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Affiliation(s)
- Rubayet Elahi
- Department of Molecular Microbiology and Immunology, Johns Hopkins University, Baltimore, Maryland, USA
- The Johns Hopkins Malaria Research Institute, Baltimore, Maryland, USA
| | - Sean T. Prigge
- Department of Molecular Microbiology and Immunology, Johns Hopkins University, Baltimore, Maryland, USA
- The Johns Hopkins Malaria Research Institute, Baltimore, Maryland, USA
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81
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Garcia-Fernandez H, Alcala-Diaz JF, Quintana-Navarro GM, Lopez-Moreno J, Luque-Cordoba D, Ruiz-Diaz Narvaez E, Arenas-de Larriva AP, Gutierrez-Mariscal FM, Torres-Peña JD, Rodriguez-Cano D, Luque RM, Priego-Capote F, Lopez-Miranda J, Camargo A. Trimethylamine Oxidation into the Proatherogenic Trimethylamine N-Oxide Is Higher in Coronary Heart Disease Men: From the CORDIOPREV Study. World J Mens Health 2024; 42:42.e81. [PMID: 39344118 DOI: 10.5534/wjmh.230366] [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: 12/13/2023] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 10/01/2024] Open
Abstract
PURPOSE Cardiovascular disease (CVD) is more prevalent in men than women, but the mechanisms responsible for this are not fully understood. We aimed to evaluate differences in trimethylamine (TMA), a microbial metabolite and its oxidized form, trimethylamine N-oxide (TMAO), which is thought to promote atherosclerosis, between men and women with coronary heart disease (CHD), using as a reference a non-CVD population. MATERIALS AND METHODS This study was carried out within the framework of the CORDIOPREV study (NCT00924937; June 19, 2009), a clinical trial which included 827 men and 175 women with CHD, with a non-CVD population of 375 individuals (270 men and 105 women) as a reference group. Plasma TMA and TMAO were measured by HPLC-MS/MS. The carotid study was ultrasonically assessed bilaterally by the quantification of intima-media thickness of both common carotid arteries (IMT-CC). RESULTS We found higher TMAO levels and TMAO/TMA ratio in CHD men than CHD women (p=0.034 and p=0.026, respectively). No TMA sex differences were found in CHD patients. The TMA and TMAO levels and TMAO/TMA ratio were lower, and no differences between sexes were found in the non-CVD population. TMAO levels in CHD patients were consistent with higher IMT-CC and more carotid plaques (p=0.032 and p=0.037, respectively) and lower cholesterol efflux in CHD men than CHD women (p<0.001). CONCLUSIONS Our results suggest that CHD men have augmented TMAO levels compared with CHD women, presumably as a consequence of higher rate of TMA to TMAO oxidation, which could be associated with CVD, as these sex differences are not observed in a non-CVD population.
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Affiliation(s)
- Helena Garcia-Fernandez
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Reina Sofía University Hospital, Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Juan F Alcala-Diaz
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Reina Sofía University Hospital, Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Gracia M Quintana-Navarro
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Reina Sofía University Hospital, Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Javier Lopez-Moreno
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Reina Sofía University Hospital, Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Diego Luque-Cordoba
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- Department of Analytical Chemistry and Nanochemistry University Institute, University of Cordoba, Cordoba, Spain
- CIBER de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | - Eugenia Ruiz-Diaz Narvaez
- Department of Clinical Nutrition and Diet Therapy, Clinics Hospital, Faculty of Medical Sciences, National University of Asuncion, San Lorenzo, Paraguay
| | - Antonio P Arenas-de Larriva
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Reina Sofía University Hospital, Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Francisco M Gutierrez-Mariscal
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Reina Sofía University Hospital, Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Jose D Torres-Peña
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Reina Sofía University Hospital, Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Raul M Luque
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Cell Biology, Physiology, and Immunology, University of Cordoba, Cordoba, Spain
| | - Feliciano Priego-Capote
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- Department of Analytical Chemistry and Nanochemistry University Institute, University of Cordoba, Cordoba, Spain
- Department of Cell Biology, Physiology, and Immunology, University of Cordoba, Cordoba, Spain
| | - Jose Lopez-Miranda
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Reina Sofía University Hospital, Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Antonio Camargo
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Reina Sofía University Hospital, Cordoba, Spain
- Department of Medical and Surgical Sciences, University of Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
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Pérez-Jiménez GM, Alvarez-Villagomez CS, Martínez-Porchas M, Garibay-Valdez E, Sepúlveda-Quiroz CA, Méndez-Marín O, Martínez-García R, Jesús-Contreras R, Alvarez-González CA, De la Rosa-García SDC. The Indigenous Probiotic Lactococcus lactis PH3-05 Enhances the Growth, Digestive Physiology, and Gut Microbiota of the Tropical Gar ( Atractosteus tropicus) Larvae. Animals (Basel) 2024; 14:2663. [PMID: 39335253 PMCID: PMC11428600 DOI: 10.3390/ani14182663] [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: 08/10/2024] [Revised: 08/28/2024] [Accepted: 09/04/2024] [Indexed: 09/30/2024] Open
Abstract
Probiotics in aquaculture hold promise for enhancing fish health and growth. Due to their increased specificity and affinity for their host, indigenous probiotics may offer isolated and potentially amplified benefits. This study investigated the effects of Lactococcus lactis PH3-05, previously isolated from adults of tropical gar (Atractosteus tropicus), on the growth, survival, digestive enzyme activity, intestinal morphology, expression of barrier and immune genes, and intestinal microbiota composition in the larvae of tropical gar. Larvae were fed with live L. lactis PH3-05 concentrations of 104, 106, and 108 CFU/g for 15 days alongside a control diet without probiotics. Higher concentrations of L. lactis PH3-05 (106 and 108 CFU/g) positively influenced larval growth, increasing hepatocyte area and enterocyte height. The 106 CFU/g dose significantly enhanced survival (46%) and digestive enzyme activity. Notably, the 108 CFU/g dose stimulated increased expression of muc-2 and il-10 genes, suggesting enhanced mucosal barrier function and anti-inflammatory response. Although L. lactis PH3-05 did not significantly change the diversity, structure, or Phylum level composition of intestinal microbiota, which was constituted by Proteobacteria, Bacteroidota, Chloroflexi, and Firmicutes, an increase in Lactobacillus abundance was observed in fish fed with 106 CFU/g, suggesting enhanced probiotic colonization. These results demonstrate that administering L. lactis PH3-05 at 106 CFU/g promotes growth, survival, and digestive health in A. tropicus larvae, establishing it as a promising indigenous probiotic candidate for aquaculture applications.
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Affiliation(s)
- Graciela María Pérez-Jiménez
- Laboratorio de Fisiología en Recursos Acuáticos (LAFIRA), División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carretera Villahermosa-Cárdenas Km. 0.5, Villahermosa 86039, Tabasco, Mexico; (G.M.P.-J.); (C.S.A.-V.); or (C.A.S.-Q.); (O.M.-M.); (R.M.-G.); (R.J.-C.)
| | - Carina Shianya Alvarez-Villagomez
- Laboratorio de Fisiología en Recursos Acuáticos (LAFIRA), División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carretera Villahermosa-Cárdenas Km. 0.5, Villahermosa 86039, Tabasco, Mexico; (G.M.P.-J.); (C.S.A.-V.); or (C.A.S.-Q.); (O.M.-M.); (R.M.-G.); (R.J.-C.)
| | - Marcel Martínez-Porchas
- Centro de Investigación en Alimentación y Desarrollo, A.C. Biología de Organismos Acuáticos, Hermosillo 83304, Sonora, Mexico; (M.M.-P.); (E.G.-V.)
| | - Estefanía Garibay-Valdez
- Centro de Investigación en Alimentación y Desarrollo, A.C. Biología de Organismos Acuáticos, Hermosillo 83304, Sonora, Mexico; (M.M.-P.); (E.G.-V.)
| | - César Antonio Sepúlveda-Quiroz
- Laboratorio de Fisiología en Recursos Acuáticos (LAFIRA), División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carretera Villahermosa-Cárdenas Km. 0.5, Villahermosa 86039, Tabasco, Mexico; (G.M.P.-J.); (C.S.A.-V.); or (C.A.S.-Q.); (O.M.-M.); (R.M.-G.); (R.J.-C.)
- Instituto Tecnológico de Villahermosa, Tecnológico Nacional de México, Carretera Villahermosa-Frontera, Km. 3.5, Ciudad Industrial, Villahermosa 86010, Tabasco, Mexico
| | - Otilio Méndez-Marín
- Laboratorio de Fisiología en Recursos Acuáticos (LAFIRA), División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carretera Villahermosa-Cárdenas Km. 0.5, Villahermosa 86039, Tabasco, Mexico; (G.M.P.-J.); (C.S.A.-V.); or (C.A.S.-Q.); (O.M.-M.); (R.M.-G.); (R.J.-C.)
| | - Rafael Martínez-García
- Laboratorio de Fisiología en Recursos Acuáticos (LAFIRA), División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carretera Villahermosa-Cárdenas Km. 0.5, Villahermosa 86039, Tabasco, Mexico; (G.M.P.-J.); (C.S.A.-V.); or (C.A.S.-Q.); (O.M.-M.); (R.M.-G.); (R.J.-C.)
| | - Ronald Jesús-Contreras
- Laboratorio de Fisiología en Recursos Acuáticos (LAFIRA), División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carretera Villahermosa-Cárdenas Km. 0.5, Villahermosa 86039, Tabasco, Mexico; (G.M.P.-J.); (C.S.A.-V.); or (C.A.S.-Q.); (O.M.-M.); (R.M.-G.); (R.J.-C.)
| | - Carlos Alfonso Alvarez-González
- Laboratorio de Fisiología en Recursos Acuáticos (LAFIRA), División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carretera Villahermosa-Cárdenas Km. 0.5, Villahermosa 86039, Tabasco, Mexico; (G.M.P.-J.); (C.S.A.-V.); or (C.A.S.-Q.); (O.M.-M.); (R.M.-G.); (R.J.-C.)
| | - Susana del Carmen De la Rosa-García
- Laboratorio de Microbiología Aplicada (LABMIA), División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Carretera Villahermosa-Cárdenas Km. 0.5, Villahermosa 86039, Tabasco, Mexico
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83
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Shin S, Baker AJ, Enk J, McKenna DD, Foquet B, Vandergast AG, Weissman DB, Song H. Orthoptera-specific target enrichment (OR-TE) probes resolve relationships over broad phylogenetic scales. Sci Rep 2024; 14:21377. [PMID: 39271747 PMCID: PMC11399444 DOI: 10.1038/s41598-024-72622-6] [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: 02/01/2024] [Accepted: 09/09/2024] [Indexed: 09/15/2024] Open
Abstract
Phylogenomic data are revolutionizing the field of insect phylogenetics. One of the most tenable and cost-effective methods of generating phylogenomic data is target enrichment, which has resulted in novel phylogenetic hypotheses and revealed new insights into insect evolution. Orthoptera is the most diverse insect order within polyneoptera and includes many evolutionarily and ecologically interesting species. Still, the order as a whole has lagged behind other major insect orders in terms of transitioning to phylogenomics. In this study, we developed an Orthoptera-specific target enrichment (OR-TE) probe set from 80 transcriptomes across Orthoptera. The probe set targets 1828 loci from genes exhibiting a wide range of evolutionary rates. The utility of this new probe set was validated by generating phylogenomic data from 36 orthopteran species that had not previously been subjected to phylogenomic studies. The OR-TE probe set captured an average of 1037 loci across the tested taxa, resolving relationships across broad phylogenetic scales. Our detailed documentation of the probe design and bioinformatics process is intended to facilitate the widespread adoption of this tool.
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Affiliation(s)
- Seunggwan Shin
- School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
- Department of Biological Sciences, Center for Biodiversity Research, University of Memphis, Memphis, TN, USA
| | - Austin J Baker
- Department of Biological Sciences, Center for Biodiversity Research, University of Memphis, Memphis, TN, USA
- Entomology Department, Natural History Museum of Los Angeles County, Los Angeles, CA, USA
| | - Jacob Enk
- Daicel Arbor Biosciences, Ann Arbor, MI, USA
| | - Duane D McKenna
- Department of Biological Sciences, Center for Biodiversity Research, University of Memphis, Memphis, TN, USA
| | - Bert Foquet
- McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - Amy G Vandergast
- San Diego Field Station, Western Ecological Research Center, U.S. Geological Survey, San Diego, CA, USA
| | - David B Weissman
- Department of Entomology, California Academy of Sciences, Golden Gate Park, San Francisco, CA, USA
| | - Hojun Song
- Department of Entomology, Texas A&M University, College Station, TX, USA.
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Jingru Z, Hongtao C, Jiaqi C, Qian W, Shili Q, Lidi G, Wenhui M, Jun L, Ming Z, Weibing Z. Preparation and application of KCC-1@ZIF-8 for the solid extraction of tetracycline with high adsorption capacity. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:5959-5970. [PMID: 39158692 DOI: 10.1039/d4ay00399c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/20/2024]
Abstract
In this study, three different materials were prepared: dendritic fiber-type silica (KCC-1), zeolitic imidazolate framework-8 (ZIF-8), and a new composite material called KCC-1@ZIF-8. These materials were synthesized using microemulsion, stirring, and coating methods, respectively. The properties of the materials were characterized using various techniques such as transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), TGA and X-ray diffraction (XRD). The results showed that KCC-1@ZIF-8 exhibited a significant increase in the BET surface area and pore size compared to the individual components KCC-1 and ZIF-8. These improved properties of the composite material were beneficial for enhancing the adsorption capacity. The effects of initial concentrations, solution pH and reaction time on the adsorption capacity were investigated. The adsorption kinetics and isothermal data of ZIF-8 and KCC-1@ZIF-8 fitted well with pseudo-second-order and Langmuir isotherm models. The results of adsorption thermodynamics show that the adsorption process is spontaneous and endothermic. KCC-1@ZIF-8 exhibited a very high adsorption capacity (751.46 mg g-1) at an initial TC hydrochloride concentration of 80 mg L-1 in an aqueous solution at 301.15 K, and the value was higher than that of ZIF-8 (549.80 mg g-1) under the same conditions. KCC-1 exhibited a relatively lower capacity (37.860 mg g-1). Based on these findings, KCC-1@ZIF-8 was considered a promising adsorbent for the treatment of wastewater contaminated with TC hydrochloride. Additionally, the composite material, when combined with high-performance liquid chromatography (HPLC), could be used as a solid-phase extraction adsorbent for the adsorption of TC hydrochloride in animal foodstuff samples. The calibration curves showed a linear range of 20-500 μg L-1, and the recovery rate ranged from 85.216% to 90.717%. No one has made adsorbents with this new structure before, and KCC-1@ZIF-8 possessed excellent adsorption properties, which make it a potential candidate for environmental remediation and analytical applications involving TC hydrochloride.
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Affiliation(s)
- Zhang Jingru
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
- Heilongjiang Academy of Sciences, Daqing Branch, Daqing 163319, China
| | - Chu Hongtao
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Chen Jiaqi
- North Huajin Chemical Industries Group Corporation, Panjin, 124021, China
| | - Wang Qian
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Qin Shili
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Gao Lidi
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Ma Wenhui
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Li Jun
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
- Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar 161000, China
| | - Zhao Ming
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
- Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar 161000, China
| | - Zhang Weibing
- Department of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai (ECUST), 200237, China
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85
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Duan X, Wang X, Li Z, Liu C, Bao Y, Shi W, Zhao X. Effects of supplemental feeding of Chinese herbal mixtures to perinatal sows on antioxidant capacity and gut microbiota of sows and their offspring piglets. Front Microbiol 2024; 15:1459188. [PMID: 39328912 PMCID: PMC11424466 DOI: 10.3389/fmicb.2024.1459188] [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: 07/04/2024] [Accepted: 08/26/2024] [Indexed: 09/28/2024] Open
Abstract
The stress response of pig herds poses a significant challenge in the pig breeding industry, and investigating strategies to mitigate this stress is of paramount importance. The objective of this study was to investigate the impacts of supplemental feeding of Chinese herbal mixtures to perinatal sows on antioxidant capacity and gut microbiota of sows and their offspring piglets. A total of 60 healthy sows (Large white) at fourth parity were randomly assigned to five treatment groups. The control group received a basal diet, while the TRT1 group received a basal diet supplemented with 2kg/t Bazhen powder (BZP). The TRT2, TRT3, and TRT4 groups were fed a basal diet supplemented with 1kg/t, 2kg/t, and 3kg/t Qi-Zhu- Gui-Shao soothing liver and replenishing blood powder (QZGSP), respectively. The trial lasted for 5weeks, starting from day 100 of gestation until day 21 of delivery. The results demonstrated that the inclusion of 2kg/t and 3kg/t QZGSP significantly enhanced the antioxidant capacity of sows and their offspring piglets to different degrees, thereby effectively alleviating oxidative stress. Analysis of gut microbiota revealed that QZGSP influenced the composition of gut microbiota in both sows and their offspring piglets. Specifically, at the genus level, the abundance of Christensenellaceae_R-7_group in the gut microbiota of sows in the TRT4 group was significantly lower than that in the TRT1 group (p < 0.05), while the relative abundance of Lactobacillus in the gut microbiota of sows in the TRT4 group was significantly higher than that in the CON group (p < 0.05). Furthermore, at the genus level, compared to those in the TRT1 group, piglets from the TRT4 group exhibited a significant decrease in relative abundance of Escherichia-Shigella, Parabacteroides, and Methanobrevivacter (p < 0.05), but a significant increase in Phascolarctobacterium (p < 0.05). Spearman correlation analysis indicated a positive correlation between relative abundance of Christensenellaceae_R-7_group and serum contents of T-AOC and CAT (p < 0.05), as well as a negative correlation with serum concentration MDA (p < 0.05). Additionally, there was a positive correlation between relative abundance Lactobacillus and serum levels SOD (p < 0.01) and GSH-Px (p < 0.05). Therefore, supplementation of 3kg/t QZGSP in the periparturient sow diet significantly augmented antioxidant capacity in both sows and offspring piglets, while concurrently modulating the composition and structure of their intestinal microflora. The findings from this study demonstrate that QZGSP represents a beneficial feed additive for perinatal sows.
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Affiliation(s)
- Xuelei Duan
- College of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Xiao Wang
- College of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Zhaonian Li
- College of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Chenggong Liu
- College of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Yongzhan Bao
- College of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
- Hebei Provincial Veterinary Biotechnology Innovation Center, Baoding, China
| | - Wanyu Shi
- College of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
- Hebei Provincial Veterinary Biotechnology Innovation Center, Baoding, China
- Hebei Provincial Traditional Chinese Veterinary Medicine Technology Innovation Center, Baoding, China
| | - Xinghua Zhao
- College of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
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86
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Xu Y, Li Y, Yan Q, Mao X, Yang S, Jiang Z. The Function and Mechanism of Laminaripentaose Prepared from Curdlan for the Amelioration of the Cognitive Dysfunctions in Obese Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:19904-19919. [PMID: 39215716 DOI: 10.1021/acs.jafc.4c05163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Functional oligosaccharides induce specific alterations in gut microbiota, potentially providing physiological benefits. However, the effects of laminaripentaose (LPA) on metabolic syndrome and the mechanism underlying it have not been intensively investigated yet. This study aimed to determine the effects of LPA on obesity and obesity-induced cognition impairment in mice. C57BL/6N mice fed with a high-fat diet received an LPA treatment for 12 weeks. An antibiotic intervention was further applied to evaluate the effects of the gut microbiota on cognitive functions. LPA treatment (500 mg/kg) reduced the weight gain by 32.4%. Furthermore, LPA improved memory functions and reduced hippocampal insulin resistance and neuronal injury. LPA markedly reduced systemic low-grade inflammation and intestinal barrier injury. Moreover, LPA increased gut beneficial bacteria, and Butyricimonas and Bifidobacterium were increased by 94.0 and 422.7%, respectively, accompanied by increased fecal short-chain fatty acids. Interestingly, antibiotic cocktail treatment abrogated the beneficial effects of LPA on cognition, which further suggests that LPA may attenuate obesity-induced cognition impairment via the gut-brain axis. Our findings provide the first evidence for the potential of dietary LPA to prevent obesity and obesity-associated complications.
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Affiliation(s)
- Yuncong Xu
- Key Laboratory of Food Bioengineering (China National Light Industry), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yanxiao Li
- College of Engineering, China Agricultural University, Beijing 100083, China
| | - Qiaojuan Yan
- College of Engineering, China Agricultural University, Beijing 100083, China
| | - Xiangzhao Mao
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Shaoqing Yang
- Key Laboratory of Food Bioengineering (China National Light Industry), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Zhengqiang Jiang
- Key Laboratory of Food Bioengineering (China National Light Industry), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Food Laboratory of Zhongyuan, Luohe 462300, China
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87
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Shan M, Zheng C, Song J, Qiu M, Huang C, Cui M, Wang J, Chen W, Zhang L, Yu Y, Fang H. Biochar and theaflavins mitigate the antibiotic resistome and antibiotic-resistant pathogens in a soil-lettuce continuum. JOURNAL OF HAZARDOUS MATERIALS 2024; 480:135821. [PMID: 39276731 DOI: 10.1016/j.jhazmat.2024.135821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 09/03/2024] [Accepted: 09/10/2024] [Indexed: 09/17/2024]
Abstract
Antibiotic resistance can be transferred into the food chain, leading to increased risks to human health from ready-to-eat vegetables. Mitigating the transmission of antibiotic resistance from soil to vegetables by green materials is of great significance. Here, we deciphered the roles of biochar and theaflavins in mitigating antibiotic resistance genes (ARGs) and antibiotic-resistant pathogens (ARPs) in a soil-lettuce continuum. Metagenomic results showed that biochar led to a significant decrease in the abundance of ARGs in lettuce leaves, while theaflavins contributed to a significant reduction in the diversity and abundance of ARGs in soil, particularly targeting dominant ARG types such as sulfonamide and aminoglycoside resistance genes. Meanwhile, biochar and theaflavins alleviated the potential mobility of ARGs, in lettuce leaves and soil, respectively, including the spread of ARGs to human pathogens. In addition, the diversity of ARG hosts was reduced in the soil-lettuce continuum and ARPs were not detected in lettuce leaves after the application of biochar or theaflavins. Overall, this study provides a novel perspective on green materials for mitigating the antibiotic resistome and ARPs in the soil-lettuce continuum, contributing to food security and human health.
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Affiliation(s)
- Mei Shan
- Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Conglai Zheng
- Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Jiajin Song
- Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Mengting Qiu
- Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Chenyu Huang
- Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Minrong Cui
- Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Jiao Wang
- Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Weibin Chen
- Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Luqing Zhang
- Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Yunlong Yu
- Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Hua Fang
- Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Pesticide and Environmental Toxicology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
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88
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Hill JD, Papoutsakis ET. Species-specific ribosomal RNA-FISH identifies interspecies cellular-material exchange, active-cell population dynamics and cellular localization of translation machinery in clostridial cultures and co-cultures. mSystems 2024:e0057224. [PMID: 39254339 DOI: 10.1128/msystems.00572-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 08/07/2024] [Indexed: 09/11/2024] Open
Abstract
The development of synthetic microbial consortia in recent years has revealed that complex interspecies interactions, notably the exchange of cytoplasmic material, exist even among organisms that originate from different ecological niches. Although morphogenetic characteristics, viable RNA and protein dyes, and fluorescent reporter proteins have played an essential role in exploring such interactions, we hypothesized that ribosomal RNA-fluorescence in situ hybridization (rRNA-FISH) could be adapted and applied to further investigate interactions in synthetic or semisynthetic consortia. Despite its maturity, several challenges exist in using rRNA-FISH as a tool to quantify individual species population dynamics and interspecies interactions using high-throughput instrumentation such as flow cytometry. In this work, we resolve such challenges and apply rRNA-FISH to double and triple co-cultures of Clostridium acetobutylicum, Clostridium ljungdahlii, and Clostridium kluyveri. In pursuing our goal to capture each organism's population dynamics, we demonstrate dynamic rRNA, and thus ribosome, exchange between the three species leading to the formation of hybrid cells. We also characterize the localization patterns of the translation machinery in the three species, identifying distinct, dynamic localization patterns among them. Our data also support the use of rRNA-FISH to assess the culture's health and expansion potential, and, here again, our data find surprising differences among the three species examined. Taken together, our study argues for rRNA-FISH as a valuable and accessible tool for quantitative exploration of interspecies interactions, especially in organisms which cannot be genetically engineered or in consortia where selective pressures to maintain recombinant species cannot be used. IMPORTANCE Though dyes and fluorescent reporter proteins have played an essential role in identifying microbial species in co-cultures, we hypothesized that ribosomal RNA-fluorescence in situ hybridization (rRNA-FISH) could be adapted and applied to quantitatively probe complex interactions between organisms in synthetic consortia. Despite its maturity, several challenges existed before rRNA-FISH could be used to study Clostridium co-cultures of interest. First, species-specific probes for Clostridium acetobutylicum and Clostridium ljungdahlii had not been developed. Second, "state-of-the-art" labeling protocols were tedious and often resulted in sample loss. Third, it was unclear if FISH was compatible with existing fluorescent reporter proteins. We resolved these key challenges and applied the technique to co-cultures of C. acetobutylicum, C. ljungdahlii, and Clostridium kluyveri. We demonstrate that rRNA-FISH is capable of identifying rRNA/ribosome exchange between the three organisms and characterized rRNA localization patterns in each. In combination with flow cytometry, rRNA-FISH can capture sub-population dynamics in co-cultures.
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Affiliation(s)
- John D Hill
- Department of Chemical and Biomolecular Engineering, The Delaware Biotechnology Institute, University of Delaware, Newark, Delaware, USA
| | - Eleftherios T Papoutsakis
- Department of Chemical and Biomolecular Engineering, The Delaware Biotechnology Institute, University of Delaware, Newark, Delaware, USA
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89
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Robinson D, Morgan-Kiss RM, Wang Z, Takacs-Vesbach C. Antarctic lake viromes reveal potential virus associated influences on nutrient cycling in ice-covered lakes. Front Microbiol 2024; 15:1422941. [PMID: 39318431 PMCID: PMC11421388 DOI: 10.3389/fmicb.2024.1422941] [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: 04/24/2024] [Accepted: 08/15/2024] [Indexed: 09/26/2024] Open
Abstract
The McMurdo Dry Valleys (MDVs) of Antarctica are a mosaic of extreme habitats which are dominated by microbial life. The MDVs include glacial melt holes, streams, lakes, and soils, which are interconnected through the transfer of energy and flux of inorganic and organic material via wind and hydrology. For the first time, we provide new data on the viral community structure and function in the MDVs through metagenomics of the planktonic and benthic mat communities of Lakes Bonney and Fryxell. Viral taxonomic diversity was compared across lakes and ecological function was investigated by characterizing auxiliary metabolic genes (AMGs) and predicting viral hosts. Our data suggest that viral communities differed between the lakes and among sites: these differences were connected to microbial host communities. AMGs were associated with the potential augmentation of multiple biogeochemical processes in host, most notably with phosphorus acquisition, organic nitrogen acquisition, sulfur oxidation, and photosynthesis. Viral genome abundances containing AMGs differed between the lakes and microbial mats, indicating site specialization. Using procrustes analysis, we also identified significant coupling between viral and bacterial communities (p = 0.001). Finally, host predictions indicate viral host preference among the assembled viromes. Collectively, our data show that: (i) viruses are uniquely distributed through the McMurdo Dry Valley lakes, (ii) their AMGs can contribute to overcoming host nutrient limitation and, (iii) viral and bacterial MDV communities are tightly coupled.
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Affiliation(s)
- David Robinson
- Department of Biology, University of New Mexico, Albuquerque, NM, United States
| | | | - Zhong Wang
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
- School of Natural Sciences, University of California, Merced, Merced, CA, United States
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90
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Yang F, Ma Q, Zhang X, Shang Y, Ngando FJ, Ren L, Cai J. The gut bacterial composition across life stages of Sarcophaga peregrina (Diptera: Sarcophagidae) and the effects of amikacin on their development. JOURNAL OF MEDICAL ENTOMOLOGY 2024; 61:1093-1104. [PMID: 38902886 DOI: 10.1093/jme/tjae071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 05/05/2024] [Accepted: 05/14/2024] [Indexed: 06/22/2024]
Abstract
Insects and microorganisms, ubiquitous organisms in the natural world, have developed intricate relationships throughout their evolutionary histories. However, most studies have concentrated on specific time points or life stages, but some limited studies have investigated the dynamics of microbial diversity within insects across life stages. Here, 16S rDNA sequencing technology was used to investigate the gut bacterial community across the life stages of Sarcophaga peregrina (Robineau-Desvoidy) (Diptera: Sarcophagidae). The results revealed that the gut bacterial diversity of S. peregrina varied with life stage and showed similarity in the nearby life stages. Proteobacteria, Actinobacteria, Firmicutes, and Bacteroidetes were the dominant phyla in S. peregrina. Genera such as Providencia, Ignatzschineria, and Myroides are implicated in potentially pivotal roles during the developmental processes of this flesh fly. Furthermore, the effects of amikacin on the growth and development of S. peregrina were not statistically significant. However, we did observe significant changes at the protein level, which suggests a close association between protein-level alterations and growth and development. Additionally, we speculate that S. peregrina regulates its nutritional status during nonfeeding stages to meet the demands of eclosion. This study represents the first comprehensive examination of the intestinal bacterial composition across various life stages of S. peregrina. Our findings deepen our understanding of the gut microbiota in this flesh fly and lay the groundwork for further exploration into the intricate interactions between microorganisms and insects.
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Affiliation(s)
- Fengqin Yang
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Hunan, Changsha, China
| | - Qiongshan Ma
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Hunan, Changsha, China
| | - Xiangyan Zhang
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Hunan, Changsha, China
| | - Yanjie Shang
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Hunan, Changsha, China
| | - Fernand Jocelin Ngando
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Hunan, Changsha, China
| | - Lipin Ren
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Hunan, Changsha, China
| | - Jifeng Cai
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Hunan, Changsha, China
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91
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Réthi-Nagy Z, Juhász S. Microbiome's Universe: Impact on health, disease and cancer treatment. J Biotechnol 2024; 392:161-179. [PMID: 39009231 DOI: 10.1016/j.jbiotec.2024.07.002] [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: 04/23/2024] [Revised: 05/27/2024] [Accepted: 07/07/2024] [Indexed: 07/17/2024]
Abstract
The human microbiome is a diverse ecosystem of microorganisms that reside in the body and influence various aspects of health and well-being. Recent advances in sequencing technology have brought to light microbial communities in organs and tissues that were previously considered sterile. The gut microbiota plays an important role in host physiology, including metabolic functions and immune modulation. Disruptions in the balance of the microbiome, known as dysbiosis, have been linked to diseases such as cancer, inflammatory bowel disease and metabolic disorders. In addition, the administration of antibiotics can lead to dysbiosis by disrupting the structure and function of the gut microbial community. Targeting strategies are the key to rebalancing the microbiome and fighting disease, including cancer, through interventions such as probiotics, fecal microbiota transplantation (FMT), and bacteria-based therapies. Future research must focus on understanding the complex interactions between diet, the microbiome and cancer in order to optimize personalized interventions. Multidisciplinary collaborations are essential if we are going to translate microbiome research into clinical practice. This will revolutionize approaches to cancer prevention and treatment.
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Affiliation(s)
- Zsuzsánna Réthi-Nagy
- Hungarian Centre of Excellence for Molecular Medicine, Cancer Microbiome Core Group, Budapesti út 9, Szeged H-6728, Hungary
| | - Szilvia Juhász
- Hungarian Centre of Excellence for Molecular Medicine, Cancer Microbiome Core Group, Budapesti út 9, Szeged H-6728, Hungary.
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92
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Chongtham R, Sharma M, Shukla RN, Joshi G, Kumar A, Goel S, Agarwal M, Jagannath A. De Novo Transcriptome Profiling of Mustard Aphid ( Lipaphis erysimi) and Differential Expression of Transcripts Associated with Feeding and Non-Feeding Conditions and Developmental Stages. INSECTS 2024; 15:682. [PMID: 39336650 PMCID: PMC11432475 DOI: 10.3390/insects15090682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Revised: 08/07/2024] [Accepted: 08/17/2024] [Indexed: 09/30/2024]
Abstract
Lipaphis erysimi is a specialist aphid of the Indian subcontinent that causes significant yield losses in oilseed Brassicas. Several aphid genes have been used as preferred targets in RNAi-based transgenic plants for aphid resistance. In order to enhance the repertoire of potential target genes for aphid control and to identify the genes associated with aphid feeding and development, we performed a two-way comparative study of differential gene expression profiles between (i) feeding and non-feeding adults and (ii) adult and nymph developmental stages of L. erysimi. De novo RNA-seq of aphids using Illumina technology generated a final transcriptome comprising 52,652 transcripts. Potential transcripts for host selection, detoxification, salivary proteins and effectors, molecular chaperones and developmental genes were identified. Differential gene expression studies identified variations in the expression of 1502 transcripts between feeding and non-feeding adults and 906 transcripts between nymphs and adults. These data were used to identify novel target genes for RNAi-based aphid control and facilitate further studies on the molecular basis of aphid feeding and development.
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Affiliation(s)
- Rubina Chongtham
- Department of Botany, University of Delhi, Delhi 110007, India
- Department of Botany, Deshbandhu College, University of Delhi, Delhi 110019, India
| | - Manvi Sharma
- Department of Botany, University of Delhi, Delhi 110007, India
| | | | - Gopal Joshi
- Department of Botany, University of Delhi, Delhi 110007, India
| | - Amar Kumar
- Department of Botany, University of Delhi, Delhi 110007, India
| | - Shailendra Goel
- Department of Botany, University of Delhi, Delhi 110007, India
| | - Manu Agarwal
- Department of Botany, University of Delhi, Delhi 110007, India
| | - Arun Jagannath
- Department of Botany, University of Delhi, Delhi 110007, India
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93
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Ma Q, Li J, Yu S, Liu Y, Zhou J, Wang X, Wang L, Zou J, Li Y. ActA-mediated PykF acetylation negatively regulates oxidative stress adaptability of Streptococcus mutans. mBio 2024; 15:e0183924. [PMID: 39248567 PMCID: PMC11481489 DOI: 10.1128/mbio.01839-24] [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: 06/15/2024] [Accepted: 08/20/2024] [Indexed: 09/10/2024] Open
Abstract
Dental caries is associated with microbial dysbiosis caused by the excessive proliferation of Streptococcus mutans in dental biofilms, where oxidative stress serves as the major stressor to microbial communities. The adaptability of S. mutans to oxidative stress is a prerequisite for its proliferation and even for exerting its virulence. Protein acetylation is a reversible and conserved regulatory mechanism enabling bacteria to rapidly respond to external environmental stressors. However, the functions of protein acetylation in regulating oxidative stress adaptability of S. mutans are still unknown. Here, we unveil the impact of acetyltransferase ActA-mediated acetylation on regulating the oxidative stress response of S. mutans. actA overexpression increased the sensitivity of S. mutans to hydrogen peroxide and diminished its competitive ability against Streptococcus sanguinis. In contrast, actA deletion enhanced oxidative stress tolerance and competitiveness of S. mutans. The mass spectrometric analysis identified pyruvate kinase (PykF) as a substrate of ActA, with its acetylation impairing its enzymatic activity and reducing pyruvate production. Supplementation with exogenous pyruvate mitigated oxidative stress sensitivity and restored competitiveness in multi-species biofilms. In vitro acetylation analysis further confirmed that ActA directly acetylates PykF, negatively affecting its enzymatic activity. Moreover, 18 potential lysine-acetylated sites on PykF were identified in vitro, which account for 75% of lysine-acetylated sites detected in vivo. Taken together, our study elucidates a novel regulatory mechanism of ActA-mediated acetylation of PykF in modulating oxidative stress adaptability of S. mutans by influencing pyruvate production, providing insights into the importance of protein acetylation in microbial environmental adaptability and interspecies interactions within dental biofilms. IMPORTANCE Dental caries poses a significant challenge to global oral health, driven by microbial dysbiosis within dental biofilms. The pathogenicity of Streptococcus mutans, a major cariogenic bacterium, is closely linked to its ability to adapt to changing environments and cellular stresses. Our investigation into the protein acetylation mechanisms, particularly through the acetyltransferase ActA, reveals a critical pathway by which S. mutans modulates its adaptability to oxidative stress, the dominant stressor within dental biofilms. By elucidating how ActA affects the oxidative stress adaptability and competitiveness of S. mutans through the regulatory axis of ActA-PykF-pyruvate, our findings provide insights into the dynamic interplay between cariogenic and commensal bacteria within dental biofilms. This work emphasizes the significance of protein acetylation in bacterial stress response and competitiveness, opening avenues for the development of novel strategies to maintain oral microbial balance within dental biofilms.
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Affiliation(s)
- Qizhao Ma
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jing Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shuxing Yu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yaqi Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jing Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xinyue Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lingyun Wang
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Jing Zou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuqing Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Center for Archaeological Science, Sichuan University, Chengdu, China
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94
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Zhang W, Lan F, Zhou Q, Gu S, Li X, Wen C, Yang N, Sun C. Host genetics and gut microbiota synergistically regulate feed utilization in egg-type chickens. J Anim Sci Biotechnol 2024; 15:123. [PMID: 39245742 PMCID: PMC11382517 DOI: 10.1186/s40104-024-01076-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 07/14/2024] [Indexed: 09/10/2024] Open
Abstract
BACKGROUND Feed efficiency is a crucial economic trait in poultry industry. Both host genetics and gut microbiota influence feed efficiency. However, the associations between gut microbiota and host genetics, as well as their combined contributions to feed efficiency in laying hens during the late laying period, remain largely unclear. METHODS In total, 686 laying hens were used for whole-genome resequencing and liver transcriptome sequencing. 16S rRNA gene sequencing was conducted on gut chyme (duodenum, jejunum, ileum, and cecum) and fecal samples from 705 individuals. Bioinformatic analysis was performed by integrating the genome, transcriptome, and microbiome to screen for key genetic variations, genes, and gut microbiota associated with feed efficiency. RESULTS The heritability of feed conversion ratio (FCR) and residual feed intake (RFI) was determined to be 0.28 and 0.48, respectively. The ileal and fecal microbiota accounted for 15% and 10% of the FCR variance, while the jejunal, cecal, and fecal microbiota accounted for 20%, 11%, and 10% of the RFI variance. Through SMR analysis based on summary data from liver eQTL mapping and GWAS, we further identified four protein-coding genes, SUCLA2, TNFSF13B, SERTM1, and MARVELD3, that influence feed efficiency in laying hens. The SUCLA2 and TNFSF13B genes were significantly associated with SNP 1:25664581 and SNP rs312433097, respectively. SERTM1 showed significant associations with rs730958360 and 1:33542680 and is a potential causal gene associated with the abundance of Corynebacteriaceae in feces. MARVELD3 was significantly associated with the 1:135348198 and was significantly correlated with the abundance of Enterococcus in ileum. Specifically, a lower abundance of Enterococcus in ileum and a higher abundance of Corynebacteriaceae in feces were associated with better feed efficiency. CONCLUSIONS This study confirms that both host genetics and gut microbiota can drive variations in feed efficiency. A small portion of the gut microbiota often interacts with host genes, collectively enhancing feed efficiency. Therefore, targeting both the gut microbiota and host genetic variation by supporting more efficient taxa and selective breeding could improve feed efficiency in laying hens during the late laying period.
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Affiliation(s)
- Wenxin Zhang
- State Key Laboratory of Animal Biotech Breeding and Frontier Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
| | - Fangren Lan
- State Key Laboratory of Animal Biotech Breeding and Frontier Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
| | - Qianqian Zhou
- State Key Laboratory of Animal Biotech Breeding and Frontier Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
| | - Shuang Gu
- State Key Laboratory of Animal Biotech Breeding and Frontier Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
| | - Xiaochang Li
- State Key Laboratory of Animal Biotech Breeding and Frontier Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
| | - Chaoliang Wen
- State Key Laboratory of Animal Biotech Breeding and Frontier Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
| | - Ning Yang
- State Key Laboratory of Animal Biotech Breeding and Frontier Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China
| | - Congjiao Sun
- State Key Laboratory of Animal Biotech Breeding and Frontier Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193, China.
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95
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Dera N, Żeber-Lubecka N, Ciebiera M, Kosińska-Kaczyńska K, Szymusik I, Massalska D, Dera K, Bubień K. Intrauterine Shaping of Fetal Microbiota. J Clin Med 2024; 13:5331. [PMID: 39274545 PMCID: PMC11396688 DOI: 10.3390/jcm13175331] [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: 07/06/2024] [Revised: 08/18/2024] [Accepted: 08/29/2024] [Indexed: 09/16/2024] Open
Abstract
Mechanisms resulting from the physiological immaturity of the digestive system in children delivered before 32 weeks of gestation and, in particular, different interactions between the microbiome and the body have not been fully elucidated yet. Next-generation sequencing methods demonstrated the presence of bacterial DNA in the placenta and amniotic fluid, which may reflect bacterial populations that initiate intestinal colonization in utero. Numerous studies confirmed the hypothesis stating that intestinal bacteria played an important role in the pathogenesis of necrotizing enterocolitis (NEC) early- and late-onset neonatal sepsis (EONS and LONS). The model and scale of disorders within the intestinal microbiome are the subject of active research in premature infants. Neonatal meconium was primarily used as an indicator defining the environment in utero, as it is formed before birth. Metagenomic results and previous data from microbiological bacterial cultures showed a correlation between the time from birth to sample collection and the detection of bacteria in the neonatal meconium. Therefore, it may be determined that the colonization of the newborn's intestines is influenced by numerous factors, which may be divided into prenatal, perinatal, and postnatal, with particular emphasis put on the mode of delivery and contact with the parent immediately after birth. Background: The aim of this review was to collect available data on the intrauterine shaping of the fetal microbiota. Methods: On 13 March 2024, the available literature in the PubMed National Library of Medicine search engine was reviewed using the following selected keywords: "placental microbiome", "intestinal bacteria in newborns and premature infants", and "intrauterine microbiota". Results: After reviewing the available articles and abstracts and an in-depth analysis of their content, over 100 articles were selected for detailed elaboration. We focused on the origin of microorganisms shaping the microbiota of newborns. We also described the types of bacteria that made up the intrauterine microbiota and the intestinal microbiota of newborns. Conclusions: The data presented in the review on the microbiome of both term newborns and those with a body weight below 1200 g indicate a possible intrauterine colonization of the fetus depending on the duration of pregnancy. The colonization occurs both via the vaginal and intestinal route (hematogenous route). However, there are differences in the demonstrated representatives of various types of bacteria, phyla Firmicutes and Actinobacteria in particular, taking account of the distribution in their abundance in the individual groups of pregnancy duration. Simultaneously, the distribution of the phyla Actinobacteria and Proteobacteria is consistent. Considering the duration of pregnancy, it may also be concluded that the bacterial flora of vaginal origin dominates in preterm newborns, while the flora of intestinal origin dominates in term newborns. This might explain the role of bacterial and infectious factors in inducing premature birth with the rupture of fetal membranes.
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Affiliation(s)
- Norbert Dera
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, 01-809 Warsaw, Poland
- Warsaw Institute of Women's Health, 00-189 Warsaw, Poland
| | - Natalia Żeber-Lubecka
- Department of Gastroenterology, Hepatology and Clinical Oncology, Centre of Postgraduate Medical Education, 02-781 Warsaw, Poland
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, 02-781 Warsaw, Poland
| | - Michał Ciebiera
- Warsaw Institute of Women's Health, 00-189 Warsaw, Poland
- Second Department of Obstetrics and Gynecology, Centre of Postgraduate Medical Education, 00-189 Warsaw, Poland
| | - Katarzyna Kosińska-Kaczyńska
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, 01-809 Warsaw, Poland
| | - Iwona Szymusik
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, 01-809 Warsaw, Poland
| | - Diana Massalska
- Warsaw Institute of Women's Health, 00-189 Warsaw, Poland
- Second Department of Obstetrics and Gynecology, Centre of Postgraduate Medical Education, 00-189 Warsaw, Poland
| | - Kacper Dera
- Provincial Specialist Hospital in Olsztyn, 10-561 Olsztyn, Poland
| | - Katarzyna Bubień
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, 01-809 Warsaw, Poland
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96
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Tsunematsu R, Mariya T, Umemoto M, Ogawa S, Arai W, Tanaka SE, Ashikawa K, Kubo T, Sakuraba Y, Baba T, Ishioka S, Endo T, Saito T. Microbiological investigation of pregnancies following vaginal radical trachelectomy using 16S rRNA sequencing of FFPE placental specimens. FEBS Open Bio 2024. [PMID: 39245884 DOI: 10.1002/2211-5463.13892] [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: 12/22/2023] [Revised: 08/15/2024] [Accepted: 08/24/2024] [Indexed: 09/10/2024] Open
Abstract
This study examined the risk of intrauterine infection associated with radical trachelectomy (RT) in early-stage cervical cancer patients. This procedure preserves fertility but is linked to increased risk of intrauterine infection due to cervical defects during pregnancy. DNA was extracted from the formalin-fixed paraffin-embedded (FFPE) placental specimens of 23 pregnant post-RT patients and 16S rRNA gene sequencing was used for bacterial identification. The prevalence of Lactobacillus crispatus and Burkholderia stabilis was significantly higher in the non-chorioamnionitis group. In contrast, alpha diversity analysis using the PD index showed significantly higher diversity in the chorioamnionitis group (P = 0.04). The demonstrated relationship between chorioamnionitis and microbial diversity affirms the importance of controlling the genital bacterial flora in pregnancies following RT.
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Affiliation(s)
- Risa Tsunematsu
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tasuku Mariya
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Mina Umemoto
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Shiori Ogawa
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | | | | | | | - Terufumi Kubo
- Department of Pathology 1st, Sapporo Medical University School of Medicine, Sapporo, Japan
| | | | - Tsuyoshi Baba
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Shinichi Ishioka
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Toshiaki Endo
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tsuyoshi Saito
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Sapporo, Japan
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97
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Obr M, Percipalle M, Chernikova D, Yang H, Thader A, Pinke G, Porley D, Mansky LM, Dick RA, Schur FKM. Distinct stabilization of the human T cell leukemia virus type 1 immature Gag lattice. Nat Struct Mol Biol 2024:10.1038/s41594-024-01390-8. [PMID: 39242978 DOI: 10.1038/s41594-024-01390-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 08/14/2024] [Indexed: 09/09/2024]
Abstract
Human T cell leukemia virus type 1 (HTLV-1) immature particles differ in morphology from other retroviruses, suggesting a distinct way of assembly. Here we report the results of cryo-electron tomography studies of HTLV-1 virus-like particles assembled in vitro, as well as derived from cells. This work shows that HTLV-1 uses a distinct mechanism of Gag-Gag interactions to form the immature viral lattice. Analysis of high-resolution structural information from immature capsid (CA) tubular arrays reveals that the primary stabilizing component in HTLV-1 is the N-terminal domain of CA. Mutagenesis analysis supports this observation. This distinguishes HTLV-1 from other retroviruses, in which the stabilization is provided primarily by the C-terminal domain of CA. These results provide structural details of the quaternary arrangement of Gag for an immature deltaretrovirus and this helps explain why HTLV-1 particles are morphologically distinct.
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Affiliation(s)
- Martin Obr
- Institute of Science and Technology Austria (ISTA), Klosterneuburg, Austria
- Material and Structural Analysis Division, Thermo Fisher Scientific, Achtseweg Noord, Eindhoven, Netherlands
| | - Mathias Percipalle
- Institute of Science and Technology Austria (ISTA), Klosterneuburg, Austria
| | - Darya Chernikova
- Institute of Science and Technology Austria (ISTA), Klosterneuburg, Austria
| | - Huixin Yang
- Institute for Molecular Virology, University of Minnesota, Minneapolis, MN, USA
| | - Andreas Thader
- Institute of Science and Technology Austria (ISTA), Klosterneuburg, Austria
| | - Gergely Pinke
- Institute of Science and Technology Austria (ISTA), Klosterneuburg, Austria
| | - Dario Porley
- Institute of Science and Technology Austria (ISTA), Klosterneuburg, Austria
| | - Louis M Mansky
- Institute for Molecular Virology, University of Minnesota, Minneapolis, MN, USA
| | - Robert A Dick
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA
- Department of Pediatrics, Laboratory of Biochemical Pharmacology, Center for ViroScience and Cure, Emory University School of Medicine, Atlanta, GA, USA
| | - Florian K M Schur
- Institute of Science and Technology Austria (ISTA), Klosterneuburg, Austria.
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98
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Zhou C, Kuang M, Tao Y, Wang J, Luo Y, Fu Y, Chen Z, Liu Y, Li Z, Wu W, Wang L, Dou Y, Wang J, Hou Y. Nynrin preserves hematopoietic stem cell function by inhibiting the mitochondrial permeability transition pore opening. Cell Stem Cell 2024; 31:1359-1375.e8. [PMID: 38955185 DOI: 10.1016/j.stem.2024.06.007] [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: 11/21/2023] [Revised: 04/22/2024] [Accepted: 06/07/2024] [Indexed: 07/04/2024]
Abstract
Mitochondria are key regulators of hematopoietic stem cell (HSC) homeostasis. Our research identifies the transcription factor Nynrin as a crucial regulator of HSC maintenance by modulating mitochondrial function. Nynrin is highly expressed in HSCs under both steady-state and stress conditions. The knockout Nynrin diminishes HSC frequency, dormancy, and self-renewal, with increased mitochondrial dysfunction indicated by abnormal mPTP opening, mitochondrial swelling, and elevated ROS levels. These changes reduce HSC radiation tolerance and promote necrosis-like phenotypes. By contrast, Nynrin overexpression in HSCs diminishes irradiation (IR)-induced lethality. The deletion of Nynrin activates Ppif, leading to overexpression of cyclophilin D (CypD) and further mitochondrial dysfunction. Strategies such as Ppif haploinsufficiency or pharmacological inhibition of CypD significantly mitigate these effects, restoring HSC function in Nynrin-deficient mice. This study identifies Nynrin as a critical regulator of mitochondrial function in HSCs, highlighting potential therapeutic targets for preserving stem cell viability during cancer treatment.
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Affiliation(s)
- Chengfang Zhou
- Department of Radiological Medicine, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Mei Kuang
- Department of Hematology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Yin Tao
- Department of Gynecology, The affiliated ZhuZhou Hospital (ZhuZhou Central Hospital), Xiangya Medical College of Central South University, Zhuzhou, Hunan 412007, China
| | - Jianming Wang
- Department of Radiological Medicine, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Yu Luo
- Department of Radiological Medicine, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Yinghao Fu
- Department of Radiological Medicine, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Zhe Chen
- Department of Radiological Medicine, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Yuanyuan Liu
- Department of Radiological Medicine, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Zhigang Li
- Department of Radiological Medicine, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Weiru Wu
- Department of Radiological Medicine, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Li Wang
- Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong Qu, Chongqing 400016, China
| | - Ying Dou
- Department of Hematology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.
| | - Junping Wang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing 400038, China.
| | - Yu Hou
- Department of Radiological Medicine, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China; Department of Hematology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China; Chongqing Key Laboratory of Hematology and Microenvironment, Chongqing Medical University, Chongqing 400016, China.
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99
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Meng L, Liang L, Shi Y, Yin H, Li L, Xiao J, Huang N, Zhao A, Xia Y, Hou J. Biofilms in plastisphere from freshwater wetlands: Biofilm formation, bacterial community assembly, and biogeochemical cycles. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134930. [PMID: 38901258 DOI: 10.1016/j.jhazmat.2024.134930] [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: 03/04/2024] [Revised: 05/10/2024] [Accepted: 06/13/2024] [Indexed: 06/22/2024]
Abstract
Microorganisms can colonize to the surface of microplastics (MPs) to form biofilms, termed "plastisphere", which could significantly change their physiochemical properties and ecological roles. However, the biofilm characteristics and the deep mechanisms (interaction, assembly, and biogeochemical cycles) underlying plastisphere in wetlands currently lack a comprehensive perspective. In this study, in situ biofilm formation experiments were performed in a park with different types of wetlands to examine the plastisphere by extrinsic addition of PVC MPs in summer and winter, respectively. Results from the spectroscopic and microscopic analyses revealed that biofilms attached to the MPs in constructed forest wetlands contained the most abundant biomass and extracellular polymeric substances. Meanwhile, data from the high-throughput sequencing showed lower diversity in plastisphere compared with soil bacterial communities. Network analysis suggested a simple and unstable co-occurrence pattern in plastisphere, and the null model indicated increased deterministic process of heterogeneous selection for its community assembly. Based on the quantification of biogeochemical cycling genes by high-throughput qPCR, the relative abundances of genes involving in carbon degradation, carbon fixation, and denitrification were significantly higher in plastisphere than those of soil communities. This study greatly enhanced our understanding of biofilm formation and ecological effects of MPs in freshwater wetlands.
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Affiliation(s)
- Liang Meng
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China; Key Laboratory of Environment Remediation and Ecological Health, Zhejiang University, Ministry of Education, Hangzhou 310058, China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai 201722, China
| | - Longrui Liang
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Yansong Shi
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Haitao Yin
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Li Li
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Jiamu Xiao
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Nannan Huang
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Angang Zhao
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Yangrongchang Xia
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Jingwen Hou
- Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200240, China.
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100
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Choi NR, Ko SJ, Nam JH, Choi WG, Lee JH, Nah SY, Park JW, Kim BJ. Study on the Therapeutic Effects and Mechanisms of Gintonin in Irritable Bowel Syndrome and Its Relationship with TRPV1, TRPV4, and NaV1.5. Pharmaceuticals (Basel) 2024; 17:1170. [PMID: 39338333 PMCID: PMC11435028 DOI: 10.3390/ph17091170] [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: 07/13/2024] [Revised: 09/03/2024] [Accepted: 09/03/2024] [Indexed: 09/30/2024] Open
Abstract
Irritable bowel syndrome (IBS) is a gastrointestinal (GI) disease accompanied by changes in bowel habits without any specific cause. Gintonin is a newly isolated glycoprotein from ginseng that is a lysophosphatidic acid (LPA) receptor ligand. To investigate the efficacy and mechanisms of action of gintonin in IBS, we developed a zymosan-induced IBS murine model. In addition, electrophysiological experiments were conducted to confirm the relevance of various ion channels. In mice, gintonin restored colon length and weight to normal and decreased stool scores, whilst food intake remained constant. Colon mucosal thickness and inflammation-related tumor necrosis factor-α levels were decreased by gintonin, along with a reduction in pain-related behaviors. In addition, the fecal microbiota from gintonin-treated mice had relatively more Lactobacillaceae and Lachnospiraceae and less Bacteroidaceae than microbiota from the control mice. Moreover, gintonin inhibited transient receptor potential vanilloid (TRPV) 1 and TRPV4 associated with visceral hypersensitivity and voltage-gated Na+ 1.5 channels associated with GI function. These results suggest that gintonin may be one of the effective components in the treatment of IBS.
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Affiliation(s)
- Na-Ri Choi
- Department of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea
- Department of Korean Medical Science, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea
| | - Seok-Jae Ko
- Department of Clinical Korean Medicine, Graduate School of Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Gastroenterology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Joo-Hyun Nam
- Department of Physiology, Dongguk University College of Medicine, Kyungju 38066, Republic of Korea
- Channelopathy Research Center (CRC), Dongguk University College of Medicine, Goyang 10326, Republic of Korea
| | - Woo-Gyun Choi
- Department of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea
| | - Jong-Hwan Lee
- Department of Biomedical Engineering, Dong-Eui University College of Engineering, Busan 47340, Republic of Korea
| | - Seung-Yeol Nah
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Jae-Woo Park
- Department of Clinical Korean Medicine, Graduate School of Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Gastroenterology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Byung-Joo Kim
- Department of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea
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