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Ma N, Guo J, Li Z, Xu L, Zhang K, Xu T, Chang G, Loor JJ, Shen X. Disturbances of Ruminal Microbiota and Liver Inflammation, Mediated by LPS and Histamine, in Dairy Cows Fed a High-Concentrate Diet. Animals (Basel) 2024; 14:1495. [PMID: 38791713 PMCID: PMC11117260 DOI: 10.3390/ani14101495] [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: 03/27/2024] [Revised: 04/30/2024] [Accepted: 05/01/2024] [Indexed: 05/26/2024] Open
Abstract
The ecosystem of ruminal microbiota profoundly affects the health and milk production of dairy cows. High-concentrate diets are widely used in dairy farms and evoke a series of metabolic disorders. Several studies have reported the effects of high-concentrate diets on the ruminal microbiome, while the effect of changes in ruminal microbial flora, induced by high-concentrate diet feeding, on the liver of dairy cows has not been studied before. In this study, 12 mid-lactating Holstein Friesian cows (weight of 455 ± 28 kg; parities of 2.5 ± 0.5; starting milk yield of 31.59 ± 3.2 kg/d; DMI of 21.7 ± 1.1 kg/d; and a DIM at the start of the experiment of 135 ± 28 d) were fitted with ruminal fistulas, as well as with portal and hepatic vein catheters. All cows were randomly divided into 2 groups; then, they fed with low-concentrate diets (LC, concentrate: forage = 40:60) and high-concentrate diets (HC, concentrate: forage = 60:40) for 18 weeks. The forage sources were corn silage and alfalfa hay. After the cows of two groups were euthanized over two consecutive days, ruminal microbiota; the concentration of LPS in the rumen content; cecum content; the levels of blood and histamine in rumen fluid, blood, and the liver; the histopathological status of the rumen and cecum; and the inflammatory response of the liver were assessed in dairy cows under conditions of subacute ruminal acidosis (SARA). These conditions were caused by high-concentrate diet feeding. All data were analyzed using the independent t-test in SPSS. The results showed that high-concentrate diet feeding increased the concentration of LPS and histamine in the rumen and plasma of veins (p < 0.05). The abundance of Bacteroidetes at the phylum level, and of both Bacteroidetes and Saccharibacteria at the genus level, was decreased, while the abundance of Firmicutes at the phylum level and Oscillibacter at the genus level was increased by high-concentrate diet feeding. The decreased pH values of ruminal contents (LC = 6.02, HC = 5.90, p < 0.05) and the increased level of LPS in the rumen (LC = 4.921 × 105, HC = 7.855 × 105 EU/mL, p < 0.05) and cecum (LC = 11.960 × 105, HC = 13.115 × 105 EU/mL, p < 0.01) induced the histopathological destruction of the rumen and cecum, combined with the increased mRNA expression of IL-1β (p < 0.05). The histamine receptor H1R and the NF-κB signaling pathway were activated in the liver samples taken from the HC group. In conclusion, the elevated concentrations of LPS and histamine in the gut may be related to changes in the ruminal microbiota. LPS and histamine induced the inflammatory response in the ruminal epithelium, cecum epithelium, and liver. However, the cause-effect mechanism needs to be proved in future research. Our study offers a novel therapeutic strategy by manipulating ruminal microbiota and metabolism to decrease LPS and histamine release and to improve the health of dairy cows.
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Affiliation(s)
- Nana Ma
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (J.G.); (Z.L.); (L.X.); (K.Z.); (T.X.); (G.C.)
| | - Junfei Guo
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (J.G.); (Z.L.); (L.X.); (K.Z.); (T.X.); (G.C.)
| | - Zhenfu Li
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (J.G.); (Z.L.); (L.X.); (K.Z.); (T.X.); (G.C.)
| | - Lei Xu
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (J.G.); (Z.L.); (L.X.); (K.Z.); (T.X.); (G.C.)
| | - Kai Zhang
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (J.G.); (Z.L.); (L.X.); (K.Z.); (T.X.); (G.C.)
| | - Tianle Xu
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (J.G.); (Z.L.); (L.X.); (K.Z.); (T.X.); (G.C.)
| | - Guangjun Chang
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (J.G.); (Z.L.); (L.X.); (K.Z.); (T.X.); (G.C.)
| | - Juan J. Loor
- Department of Animal Sciences, Division of Nutritional Sciences, University of Illinois, Urbana, IL 61801, USA;
| | - Xiangzhen Shen
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (J.G.); (Z.L.); (L.X.); (K.Z.); (T.X.); (G.C.)
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Duelo A, Comas-Basté O, Sánchez-Pérez S, Veciana-Nogués MT, Ruiz-Casares E, Vidal-Carou MC, Latorre-Moratalla ML. Pilot Study on the Prevalence of Diamine Oxidase Gene Variants in Patients with Symptoms of Histamine Intolerance. Nutrients 2024; 16:1142. [PMID: 38674832 PMCID: PMC11054051 DOI: 10.3390/nu16081142] [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: 02/07/2024] [Revised: 04/06/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
A retrospective pilot study was carried out to investigate the prevalence of four variants of the diamine oxidase (DAO) encoding gene (AOC1) in Caucasian adults with symptoms of histamine intolerance. In a cohort of 100 patients and 100 healthy individuals, DAO-encoding gene non-synonymous Single Nucleotide Variations (SNVs) were genotyped by multiplex single-nucleotide primer extension (SNPE) and capillary electrophoresis, and serum DAO activity was analyzed with a radio-extraction assay. The study found that 79% of individuals with symptoms of histamine intolerance harbored one or more of the four SNVs associated with reduced DAO activity. No significant differences were found in the prevalence of any variant between the group of patients and healthy controls. However, when considering the status of the alleles associated with DAO deficiency, more homozygous alleles were observed in histamine-intolerant patients. Moreover, a slightly but statistically higher percentage of patients had a high genetic risk score, reflecting the cumulative effect of carrying multiple DAO deficiency-associated gene variants and a high load of risk alleles (homozygous). A relationship between serum DAO activity and the genetic load of one specific SNV was observed, with DAO activity being significantly lower in patients homozygous for rs2052129. These results potentially support that carrying multiple DAO deficiency-associated gene variants and a high load of risk alleles (homozygous) is more relevant than the mere presence of one or more SNVs. Further studies are needed to determine the predictive value of these DAO-encoding gene variants.
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Affiliation(s)
- Adriana Duelo
- Departament de Nutrició, Ciències de l’Alimentació i Gastronomia, Campus de l’Alimentació de Torribera, Universitat de Barcelona (UB), Av. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Spain; (A.D.); (S.S.-P.); (M.T.V.-N.); (M.C.V.-C.); (M.L.L.-M.)
- Institut de Recerca en Nutrició i Seguretat Alimentària (INSA·UB), Universitat de Barcelona (UB), Av. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Spain
- International Institute of DAO Deficiency, C/Escoles Pies 49, 08017 Barcelona, Spain
| | - Oriol Comas-Basté
- Departament de Nutrició, Ciències de l’Alimentació i Gastronomia, Campus de l’Alimentació de Torribera, Universitat de Barcelona (UB), Av. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Spain; (A.D.); (S.S.-P.); (M.T.V.-N.); (M.C.V.-C.); (M.L.L.-M.)
- Institut de Recerca en Nutrició i Seguretat Alimentària (INSA·UB), Universitat de Barcelona (UB), Av. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Spain
| | - Sònia Sánchez-Pérez
- Departament de Nutrició, Ciències de l’Alimentació i Gastronomia, Campus de l’Alimentació de Torribera, Universitat de Barcelona (UB), Av. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Spain; (A.D.); (S.S.-P.); (M.T.V.-N.); (M.C.V.-C.); (M.L.L.-M.)
- Institut de Recerca en Nutrició i Seguretat Alimentària (INSA·UB), Universitat de Barcelona (UB), Av. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Spain
| | - M. Teresa Veciana-Nogués
- Departament de Nutrició, Ciències de l’Alimentació i Gastronomia, Campus de l’Alimentació de Torribera, Universitat de Barcelona (UB), Av. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Spain; (A.D.); (S.S.-P.); (M.T.V.-N.); (M.C.V.-C.); (M.L.L.-M.)
- Institut de Recerca en Nutrició i Seguretat Alimentària (INSA·UB), Universitat de Barcelona (UB), Av. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Spain
| | - Eva Ruiz-Casares
- Vivolabs, C/Marqués de la Valdavia 106, 28100 Alcobendas, Spain;
| | - M. Carmen Vidal-Carou
- Departament de Nutrició, Ciències de l’Alimentació i Gastronomia, Campus de l’Alimentació de Torribera, Universitat de Barcelona (UB), Av. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Spain; (A.D.); (S.S.-P.); (M.T.V.-N.); (M.C.V.-C.); (M.L.L.-M.)
- Institut de Recerca en Nutrició i Seguretat Alimentària (INSA·UB), Universitat de Barcelona (UB), Av. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Spain
| | - M. Luz Latorre-Moratalla
- Departament de Nutrició, Ciències de l’Alimentació i Gastronomia, Campus de l’Alimentació de Torribera, Universitat de Barcelona (UB), Av. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Spain; (A.D.); (S.S.-P.); (M.T.V.-N.); (M.C.V.-C.); (M.L.L.-M.)
- Institut de Recerca en Nutrició i Seguretat Alimentària (INSA·UB), Universitat de Barcelona (UB), Av. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Spain
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Davis EC, Monaco CL, Insel R, Järvinen KM. Gut microbiome in the first 1000 days and risk for childhood food allergy. Ann Allergy Asthma Immunol 2024:S1081-1206(24)00152-2. [PMID: 38494114 DOI: 10.1016/j.anai.2024.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/11/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
OBJECTIVE To summarize recent data on the association between gut microbiome composition and food allergy (FA) in early childhood and highlight potential host-microbiome interactions that reinforce or abrogate oral tolerance. DATA SOURCES PubMed search of English-language articles related to FA, other atopic disease, and the gut microbiome in pregnancy and early childhood. STUDY SELECTIONS Human studies published after 2015 assessing the relationship between the gut bacteriome and virome in the first 2 years of life and FA or food sensitization development in early childhood were prioritized. Additional human studies conducted on the prenatal gut microbiome or other atopic diseases and preclinical studies are also discussed. RESULTS Children who developed FA harbored lower abundances of Bifidobacterium and Clostridia species and had a less mature microbiome during infancy. The early bacterial microbiome protects against FA through production of anti-inflammatory metabolites and induction of T regulatory cells and may also affect FA risk through a role in trained immunity. Infant enteric phage communities are related to childhood asthma development, though no data are available for FA. Maternal gut microbiome during pregnancy is associated with childhood FA risk, potentially through transplacental delivery of maternal bacterial metabolites, though human studies are lacking. CONCLUSION The maternal and infant microbiomes throughout the first 1000 days of life influence FA risk through a number of proposed mechanisms. Further large, longitudinal cohort studies using taxonomic, functional, and metabolomic analysis of the bacterial and viral microbiomes are needed to provide further insight on the host-microbe interactions underlying FA pathogenesis in childhood.
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Affiliation(s)
- Erin C Davis
- Division of Allergy and Immunology, Center for Food Allergy, Department of Pediatrics, University of Rochester School of Medicine and Dentistry, Golisano Children's Hospital, Rochester, New York
| | - Cynthia L Monaco
- Division of Infectious Disease, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York; Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Richard Insel
- Division of Allergy and Immunology, Center for Food Allergy, Department of Pediatrics, University of Rochester School of Medicine and Dentistry, Golisano Children's Hospital, Rochester, New York
| | - Kirsi M Järvinen
- Division of Allergy and Immunology, Center for Food Allergy, Department of Pediatrics, University of Rochester School of Medicine and Dentistry, Golisano Children's Hospital, Rochester, New York; Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, Rochester, New York; Division of Allergy, Immunology, and Rheumatology, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York.
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Roth-Walter F, Berni Canani R, O'Mahony L, Peroni D, Sokolowska M, Vassilopoulou E, Venter C. Nutrition in chronic inflammatory conditions: Bypassing the mucosal block for micronutrients. Allergy 2024; 79:353-383. [PMID: 38084827 DOI: 10.1111/all.15972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/14/2023] [Accepted: 11/27/2023] [Indexed: 02/01/2024]
Abstract
Nutritional Immunity is one of the most ancient innate immune responses, during which the body can restrict nutrients availability to pathogens and restricts their uptake by the gut mucosa (mucosal block). Though this can be a beneficial strategy during infection, it also is associated with non-communicable diseases-where the pathogen is missing; leading to increased morbidity and mortality as micronutritional uptake and distribution in the body is hindered. Here, we discuss the acute immune response in respect to nutrients, the opposing nutritional demands of regulatory and inflammatory cells and particularly focus on some nutrients linked with inflammation such as iron, vitamins A, Bs, C, and other antioxidants. We propose that while the absorption of certain micronutrients is hindered during inflammation, the dietary lymph path remains available. As such, several clinical trials investigated the role of the lymphatic system during protein absorption, following a ketogenic diet and an increased intake of antioxidants, vitamins, and minerals, in reducing inflammation and ameliorating disease.
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Affiliation(s)
- Franziska Roth-Walter
- Comparative Medicine, The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna, Vienna, Austria
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Roberto Berni Canani
- Department of Translational Medical Science and ImmunoNutritionLab at CEINGE-Advanced Biotechnologies, University of Naples "Federico II", Naples, Italy
| | - Liam O'Mahony
- Department of Medicine, School of Microbiology, APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Diego Peroni
- Section of Paediatrics, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland
- Christine Kühne - Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Emilia Vassilopoulou
- Pediatric Area, Fondazione IRCCS Ca' Granda-Ospedale Maggiore Policlinico, Milan, Italy
- Department of Nutritional Sciences and Dietetics, International Hellenic University, Thessaloniki, Greece
| | - Carina Venter
- Children's Hospital Colorado, University of Colorado, Aurora, Colorado, USA
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Losol P, Wolska M, Wypych TP, Yao L, O'Mahony L, Sokolowska M. A cross talk between microbial metabolites and host immunity: Its relevance for allergic diseases. Clin Transl Allergy 2024; 14:e12339. [PMID: 38342758 PMCID: PMC10859320 DOI: 10.1002/clt2.12339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 01/07/2024] [Accepted: 01/22/2024] [Indexed: 02/13/2024] Open
Abstract
BACKGROUND Allergic diseases, including respiratory and food allergies, as well as allergic skin conditions have surged in prevalence in recent decades. In allergic diseases, the gut microbiome is dysbiotic, with reduced diversity of beneficial bacteria and increased abundance of potential pathogens. Research findings suggest that the microbiome, which is highly influenced by environmental and dietary factors, plays a central role in the development, progression, and severity of allergic diseases. The microbiome generates metabolites, which can regulate many of the host's cellular metabolic processes and host immune responses. AIMS AND METHODS Our goal is to provide a narrative and comprehensive literature review of the mechanisms through which microbial metabolites regulate host immune function and immune metabolism both in homeostasis and in the context of allergic diseases. RESULTS AND DISCUSSION We describe key microbial metabolites such as short-chain fatty acids, amino acids, bile acids and polyamines, elucidating their mechanisms of action, cellular targets and their roles in regulating metabolism within innate and adaptive immune cells. Furthermore, we characterize the role of bacterial metabolites in the pathogenesis of allergic diseases including allergic asthma, atopic dermatitis and food allergy. CONCLUSION Future research efforts should focus on investigating the physiological functions of microbiota-derived metabolites to help develop new diagnostic and therapeutic interventions for allergic diseases.
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Affiliation(s)
- Purevsuren Losol
- Department of Internal MedicineSeoul National University Bundang HospitalSeongnamKorea
- Department of Molecular Biology and GeneticsSchool of BiomedicineMongolian National University of Medical SciencesUlaanbaatarMongolia
| | - Magdalena Wolska
- Laboratory of Host‐Microbiota InteractionsNencki Institute of Experimental BiologyPolish Academy of SciencesWarsawPoland
| | - Tomasz P. Wypych
- Laboratory of Host‐Microbiota InteractionsNencki Institute of Experimental BiologyPolish Academy of SciencesWarsawPoland
| | - Lu Yao
- APC Microbiome IrelandUniversity College CorkCorkIreland
- Department of MedicineUniversity College CorkCorkIreland
- School of MicrobiologyUniversity College CorkCorkIreland
| | - Liam O'Mahony
- APC Microbiome IrelandUniversity College CorkCorkIreland
- Department of MedicineUniversity College CorkCorkIreland
- School of MicrobiologyUniversity College CorkCorkIreland
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZurichDavosSwitzerland
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Qiao X, Li X, Wang Z, Feng Y, Wei X, Li L, Pan Y, Zhang K, Zhou R, Yan L, Li P, Xu C, Lv Z, Tian Z. Gut microbial community and fecal metabolomic signatures in different types of osteoporosis animal models. Aging (Albany NY) 2024; 16:1192-1217. [PMID: 38284894 PMCID: PMC10866450 DOI: 10.18632/aging.205396] [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: 08/29/2023] [Accepted: 11/13/2023] [Indexed: 01/30/2024]
Abstract
BACKGROUND The gut microbiota (GM) constitutes a critical factor in the maintenance of physiological homeostasis. Numerous studies have empirically demonstrated that the GM is closely associated with the onset and progression of osteoporosis (OP). Nevertheless, the characteristics of the GM and its metabolites related to different forms of OP are poorly understood. In the present study, we examined the changes in the GM and its metabolites associated with various types of OP as well as the correlations among them. METHODS We simultaneously established rat postmenopausal, disuse-induced, and glucocorticoid-induced OP models. We used micro-CT and histological analyses to observe bone microstructure, three-point bending tests to measure bone strength, and enzyme-linked immunosorbent assay (ELISA) to evaluate the biochemical markers of bone turnover in the three rat OP models and the control. We applied 16s rDNA to analyze GM abundance and employed untargeted metabolomics to identify fecal metabolites in all four treatment groups. We implemented multi-omics methods to explore the relationships among OP, the GM, and its metabolites. RESULTS The 16S rDNA sequencing revealed that both the abundance and alterations of the GM significantly differed among the OP groups. In the postmenopausal OP model, the bacterial genera g__Bacteroidetes_unclassified, g__Firmicutes_unclassified, and g__Eggerthella had changed. In the disuse-induced and glucocorticoid-induced OP models, g__Akkermansia and g__Rothia changed, respectively. Untargeted metabolomics disclosed that the GM-derived metabolites significantly differed among the OP types. However, a Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis showed that it was mainly metabolites implicated in lipid and amino acid metabolism that were altered in all cases. An association analysis indicated that the histidine metabolism intermediate 4-(β-acetylaminoethyl) imidazole was common to all OP forms and was strongly correlated with all bone metabolism-related bacterial genera. Hence, 4-(β-acetylaminoethyl) imidazole might play a vital role in OP onset and progression. CONCLUSIONS The present work revealed the alterations in the GM and its metabolites that are associated with OP. It also disclosed the changes in the GM that are characteristic of each type of OP. Future research should endeavor to determine the causal and regulatory effects of the GM and the metabolites typical of each form of OP.
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Affiliation(s)
- Xiaochen Qiao
- Second Clinical Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Shanxi Key laboratory of Bone and Soft Tissue Injury Repair, Taiyuan 030001, Shanxi, P.R. China
- Department of Orthopedics, Jinzhong Hospital Affiliated to Shanxi Medical University, Jinzhong 030600, Shanxi, P.R. China
| | - Xiaoyan Li
- Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan 030013, Shanxi, P.R. China
| | - Zhichao Wang
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan 030032, Shanxi, China
| | - Yi Feng
- Second Clinical Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Shanxi Key laboratory of Bone and Soft Tissue Injury Repair, Taiyuan 030001, Shanxi, P.R. China
| | - Xiaochun Wei
- Second Clinical Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Shanxi Key laboratory of Bone and Soft Tissue Injury Repair, Taiyuan 030001, Shanxi, P.R. China
| | - Lu Li
- Second Clinical Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Shanxi Key laboratory of Bone and Soft Tissue Injury Repair, Taiyuan 030001, Shanxi, P.R. China
| | - Yongchun Pan
- Department of Orthopedics, Third People’s Hospital of Datong City, Datong 037006, Shanxi, P.R. China
| | - Kun Zhang
- Second Clinical Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Shanxi Key laboratory of Bone and Soft Tissue Injury Repair, Taiyuan 030001, Shanxi, P.R. China
| | - Ruhao Zhou
- Second Clinical Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Shanxi Key laboratory of Bone and Soft Tissue Injury Repair, Taiyuan 030001, Shanxi, P.R. China
| | - Lei Yan
- Second Clinical Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Shanxi Key laboratory of Bone and Soft Tissue Injury Repair, Taiyuan 030001, Shanxi, P.R. China
| | - Pengcui Li
- Second Clinical Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Shanxi Key laboratory of Bone and Soft Tissue Injury Repair, Taiyuan 030001, Shanxi, P.R. China
| | - Chaojian Xu
- Second Clinical Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Shanxi Key laboratory of Bone and Soft Tissue Injury Repair, Taiyuan 030001, Shanxi, P.R. China
| | - Zhi Lv
- Second Clinical Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Shanxi Key laboratory of Bone and Soft Tissue Injury Repair, Taiyuan 030001, Shanxi, P.R. China
| | - Zhi Tian
- Second Clinical Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi, P.R. China
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Shanxi Key laboratory of Bone and Soft Tissue Injury Repair, Taiyuan 030001, Shanxi, P.R. China
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Capobianco I, Di Vincenzo F, Puca P, Becherucci G, Mentella MC, Petito V, Scaldaferri F. Adverse Food Reactions in Inflammatory Bowel Disease: State of the Art and Future Perspectives. Nutrients 2024; 16:351. [PMID: 38337636 PMCID: PMC10857040 DOI: 10.3390/nu16030351] [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: 12/23/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
Limited knowledge is available about the relationship between food allergies or intolerances and inflammatory bowel disease (IBD). Clinicians frequently encounter patients who report food allergies or intolerances, and gastroenterologists struggle distinguishing between patients with organic disorders and those with functional disorders, which the patients themselves may associate with specific dietary components. This task becomes even more arduous when managing patients with significant underlying organic conditions, like IBD. The aim of this review is to summarize and emphasize any actual associations between food allergies and intolerances and inflammatory diseases, such as ulcerative colitis and Crohn's disease. Through a narrative disceptation of the current literature, we highlight the increased prevalence of various food intolerances, including lactose, fructose, histamine, nickel, and non-celiac gluten sensitivity, in individuals with IBD. Additionally, we explore the association between increased epithelial barrier permeability in IBD and the development of food sensitization. By doing so, we aim to enhance clinicians' awareness of the nutritional management of patients with IBD when facing complaints or evidence of food allergies or intolerances.
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Affiliation(s)
- Ivan Capobianco
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.D.V.); (P.P.); (F.S.)
| | - Federica Di Vincenzo
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.D.V.); (P.P.); (F.S.)
| | - Pierluigi Puca
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.D.V.); (P.P.); (F.S.)
| | - Guia Becherucci
- UOC Nutrizione Clinica, Dipartimento di Scienze Mediche e Chirurgiche Addominali ed Endocrino Metaboliche, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (G.B.); (M.C.M.)
| | - Maria Chiara Mentella
- UOC Nutrizione Clinica, Dipartimento di Scienze Mediche e Chirurgiche Addominali ed Endocrino Metaboliche, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (G.B.); (M.C.M.)
| | - Valentina Petito
- IBD Unit, UOC CEMAD Centro Malattie dell’Apparato Digerente, Dipartimento di Scienze Mediche e Chirurgiche Addominali ed Endocrino Metaboliche, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy;
| | - Franco Scaldaferri
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.D.V.); (P.P.); (F.S.)
- IBD Unit, UOC CEMAD Centro Malattie dell’Apparato Digerente, Dipartimento di Scienze Mediche e Chirurgiche Addominali ed Endocrino Metaboliche, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy;
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8
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Lunjani N, Kerbelker T, Mdletshe FB, Hlela C, O’Mahony L. Phenotypes, endotypes and genotypes of atopic dermatitis and allergy in populations of African ancestry on the continent and diaspora. FRONTIERS IN ALLERGY 2024; 4:1203304. [PMID: 38327736 PMCID: PMC10847302 DOI: 10.3389/falgy.2023.1203304] [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: 04/10/2023] [Accepted: 12/11/2023] [Indexed: 02/09/2024] Open
Abstract
Atopic dermatitis is a complex inflammatory condition characterized by synergist interactions between epidermal and immune related genotypes, skin barrier defects and immune dysregulation as well as microbial dysbiosis. Ethnicity-specific variations in clinical presentation, immune endotypes and genetic susceptibility have been described in diverse populations. We summarize available data with specific consideration of AD in populations of African ancestry. Some highlights include the observation of AD lesions on extensor surfaces, lichen planus-like AD, prurigo type AD and follicular AD in African populations. In addition, a consistent absence of dominant filaggrin gene defects has been reported. The detection of normal filaggrin protein content in AD skin implicates the contribution of alternative mechanisms in the pathogenesis of AD in African patients. Markedly high IgE has been described in paediatric and adult African AD. While Th2, Th22 and Th17 activation in African AD skin shares the same direction as with other populations, it has been noted that the magnitude of activation is dissimilar. Reduced Th17 cytokines have been observed in the circulation of moderate to severe paediatric AD.
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Affiliation(s)
- N. Lunjani
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Division of Dermatology, University of Cape Town, Cape Town, South Africa
| | - T. Kerbelker
- Department of Peadiatrics, University of Cape Town, Cape Town, South Africa
| | - F. B. Mdletshe
- Division of Otorhinolaryngology, University of Witwatersrand, Johannesburg, South Africa
| | - C. Hlela
- Division of Dermatology, University of Cape Town, Cape Town, South Africa
| | - L. O’Mahony
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Medicine, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
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9
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Krishnamurthy HK, Pereira M, Bosco J, George J, Jayaraman V, Krishna K, Wang T, Bei K, Rajasekaran JJ. Gut commensals and their metabolites in health and disease. Front Microbiol 2023; 14:1244293. [PMID: 38029089 PMCID: PMC10666787 DOI: 10.3389/fmicb.2023.1244293] [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: 06/22/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose of review This review comprehensively discusses the role of the gut microbiome and its metabolites in health and disease and sheds light on the importance of a holistic approach in assessing the gut. Recent findings The gut microbiome consisting of the bacteriome, mycobiome, archaeome, and virome has a profound effect on human health. Gut dysbiosis which is characterized by perturbations in the microbial population not only results in gastrointestinal (GI) symptoms or conditions but can also give rise to extra-GI manifestations. Gut microorganisms also produce metabolites (short-chain fatty acids, trimethylamine, hydrogen sulfide, methane, and so on) that are important for several interkingdom microbial interactions and functions. They also participate in various host metabolic processes. An alteration in the microbial species can affect their respective metabolite concentrations which can have serious health implications. Effective assessment of the gut microbiome and its metabolites is crucial as it can provide insights into one's overall health. Summary Emerging evidence highlights the role of the gut microbiome and its metabolites in health and disease. As it is implicated in GI as well as extra-GI symptoms, the gut microbiome plays a crucial role in the overall well-being of the host. Effective assessment of the gut microbiome may provide insights into one's health status leading to more holistic care.
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Affiliation(s)
| | | | - Jophi Bosco
- Vibrant America LLC., San Carlos, CA, United States
| | | | | | | | - Tianhao Wang
- Vibrant Sciences LLC., San Carlos, CA, United States
| | - Kang Bei
- Vibrant Sciences LLC., San Carlos, CA, United States
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10
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Fu Y, Li S, Xiao Y, Liu G, Fang J. A Metabolite Perspective on the Involvement of the Gut Microbiota in Type 2 Diabetes. Int J Mol Sci 2023; 24:14991. [PMID: 37834439 PMCID: PMC10573635 DOI: 10.3390/ijms241914991] [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: 08/17/2023] [Revised: 09/30/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Type 2 diabetes (T2D) is a commonly diagnosed condition that has been extensively studied. The composition and activity of gut microbes, as well as the metabolites they produce (such as short-chain fatty acids, lipopolysaccharides, trimethylamine N-oxide, and bile acids) can significantly impact diabetes development. Treatment options, including medication, can enhance the gut microbiome and its metabolites, and even reverse intestinal epithelial dysfunction. Both animal and human studies have demonstrated the role of microbiota metabolites in influencing diabetes, as well as their complex chemical interactions with signaling molecules. This article focuses on the importance of microbiota metabolites in type 2 diabetes and provides an overview of various pharmacological and dietary components that can serve as therapeutic tools for reducing the risk of developing diabetes. A deeper understanding of the link between gut microbial metabolites and T2D will enhance our knowledge of the disease and may offer new treatment approaches. Although many animal studies have investigated the palliative and attenuating effects of gut microbial metabolites on T2D, few have established a complete cure. Therefore, conducting more systematic studies in the future is necessary.
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Affiliation(s)
| | | | | | - Gang Liu
- Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; (Y.F.); (S.L.); (Y.X.)
| | - Jun Fang
- Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; (Y.F.); (S.L.); (Y.X.)
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11
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Aleti G, Troyer EA, Hong S. G protein-coupled receptors: A target for microbial metabolites and a mechanistic link to microbiome-immune-brain interactions. Brain Behav Immun Health 2023; 32:100671. [PMID: 37560037 PMCID: PMC10407893 DOI: 10.1016/j.bbih.2023.100671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 07/30/2023] [Indexed: 08/11/2023] Open
Abstract
Human-microorganism interactions play a key role in human health. However, the underlying molecular mechanisms remain poorly understood. Small-molecules that offer a functional readout of microbe-microbe-human relationship are of great interest for deeper understanding of the inter-kingdom crosstalk at the molecular level. Recent studies have demonstrated that small-molecules from gut microbiota act as ligands for specific human G protein-coupled receptors (GPCRs) and modulate a range of human physiological functions, offering a mechanistic insight into the microbe-human interaction. To this end, we focused on analysis of bacterial metabolites that are currently recognized to bind to GPCRs and are found to activate the known downstream signaling pathways. We further mapped the distribution of these molecules across the public mass spectrometry-based metabolomics data, to identify the presence of these molecules across body sites and their association with health status. By combining this with RNA-Seq expression and spatial localization of GPCRs from a public human protein atlas database, we inferred the most predominant GPCR-mediated microbial metabolite-human cell interactions regulating gut-immune-brain axis. Furthermore, by evaluating the intestinal absorption properties and blood-brain barrier permeability of the small-molecules we elucidated their molecular interactions with specific human cell receptors, particularly expressed on human intestinal epithelial cells, immune cells and the nervous system that are shown to hold much promise for clinical translational potential. Furthermore, we provide an overview of an open-source resource for simultaneous interrogation of bioactive molecules across the druggable human GPCRome, a useful framework for integration of microbiome and metabolite cataloging with mechanistic studies for an improved understanding of gut microbiota-immune-brain molecular interactions and their potential therapeutic use.
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Affiliation(s)
- Gajender Aleti
- Department of Food and Animal Sciences, Tennessee State University, Nashville, TN, 37209, USA
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Emily A. Troyer
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Suzi Hong
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
- Herbert Wertheim School of Public Health and Human Longevity Science, University of California San Diego, La Jolla, CA, 92093, USA
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12
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Pałgan K. Mast Cells and Basophils in IgE-Independent Anaphylaxis. Int J Mol Sci 2023; 24:12802. [PMID: 37628983 PMCID: PMC10454702 DOI: 10.3390/ijms241612802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/03/2023] [Accepted: 08/06/2023] [Indexed: 08/27/2023] Open
Abstract
Anaphylaxis is a life-threatening or even fatal systemic hypersensitivity reaction. The incidence of anaphylaxis has risen at an alarming rate in the past decades in the majority of countries. Generally, the most common causes of severe or fatal anaphylaxis are medication, foods and Hymenoptera venoms. Anaphylactic reactions are characterized by the activation of mast cells and basophils and the release of mediators. These cells express a variety of receptors that enable them to respond to a wide range of stimulants. Most studies of anaphylaxis focus on IgE-dependent reactions. The mast cell has long been regarded as the main effector cell involved in IgE-mediated anaphylaxis. This paper reviews IgE-independent anaphylaxis, with special emphasis on mast cells, basophils, anaphylactic mediators, risk factors, triggers, and management.
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Affiliation(s)
- Krzysztof Pałgan
- Department of Allergology, Clinical Immunology and Internal Diseases, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Ujejskiego 75, 85-168 Bydgoszcz, Poland
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13
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Beghetti I, Barone M, Brigidi P, Sansavini A, Corvaglia L, Aceti A, Turroni S. Early-life gut microbiota and neurodevelopment in preterm infants: a narrative review. Front Nutr 2023; 10:1241303. [PMID: 37614746 PMCID: PMC10443645 DOI: 10.3389/fnut.2023.1241303] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 07/27/2023] [Indexed: 08/25/2023] Open
Abstract
Infants born preterm are at a high risk of both gut microbiota (GM) dysbiosis and neurodevelopmental impairment. While the link between early dysbiosis and short-term clinical outcomes is well established, the relationship with long-term infant health has only recently gained interest. Notably, there is a significant overlap in the developmental windows of GM and the nervous system in early life. The connection between GM and neurodevelopment was first described in animal models, but over the last decade a growing body of research has also identified GM features as one of the potential mediators for human neurodevelopmental and neuropsychiatric disorders. In this narrative review, we provide an overview of the developing GM in early life and its prospective relationship with neurodevelopment, with a focus on preterm infants. Animal models have provided evidence for emerging pathways linking early-life GM with brain development. Furthermore, a relationship between both dynamic patterns and static features of the GM during preterm infants' early life and brain maturation, as well as neurodevelopmental outcomes in early childhood, was documented. Future human studies in larger cohorts, integrated with studies on animal models, may provide additional evidence and help to identify predictive biomarkers and potential therapeutic targets for healthy neurodevelopment in preterm infants.
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Affiliation(s)
- Isadora Beghetti
- Neonatal Intensive Care Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Monica Barone
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Patrizia Brigidi
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Alessandra Sansavini
- Department of Psychology “Renzo Canestrari”, University of Bologna, Bologna, Italy
| | - Luigi Corvaglia
- Neonatal Intensive Care Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Arianna Aceti
- Neonatal Intensive Care Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Silvia Turroni
- Unit of Microbiome Science and Biotechnology, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
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14
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Fiorani M, Del Vecchio LE, Dargenio P, Kaitsas F, Rozera T, Porcari S, Gasbarrini A, Cammarota G, Ianiro G. Histamine-producing bacteria and their role in gastrointestinal disorders. Expert Rev Gastroenterol Hepatol 2023; 17:709-718. [PMID: 37394958 DOI: 10.1080/17474124.2023.2230865] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 06/22/2023] [Indexed: 07/04/2023]
Abstract
INTRODUCTION Gut microbiota produces thousands of metabolites, which have a huge impact on the host health. Specific microbial strains are able to synthesize histamine, a molecule with a crucial role in many physiologic and pathologic mechanisms of the host. This function is mediated by the histidine decarboxylase enzyme (HDC) that converts the amino acid histidine to histamine. AREAS COVERED This review summarizes the emerging data on histamine production by gut microbiota, and the effect of bacterial-derived histamine in different clinical contexts, including cancer, irritable bowel syndrome, and other gastrointestinal and extraintestinal pathologies. This review will also outline the impact of histamine on the immune system and the effect of probiotics that can secrete histamine. Search methodology: we searched the literature on PubMed up to February 2023. EXPERT OPINION The potential of modulating gut microbiota to influence histamine production is a promising area of research, and although our knowledge of histamine-secreting bacteria is still limited, recent advances are exploring their diagnostic and therapeutical potential. Diet, probiotics, and pharmacological treatments directed to the modulation of histamine-secreting bacteria may in the future potentially be employed in the prevention and management of several gastrointestinal and extraintestinal disorders.
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Affiliation(s)
- Marcello Fiorani
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - Livio Enrico Del Vecchio
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - Pasquale Dargenio
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesco Kaitsas
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Tommaso Rozera
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - Serena Porcari
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - Antonio Gasbarrini
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - Giovanni Cammarota
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - Gianluca Ianiro
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
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15
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López-Villodres JA, Escamilla A, Mercado-Sáenz S, Alba-Tercedor C, Rodriguez-Perez LM, Arranz-Salas I, Sanchez-Varo R, Bermúdez D. Microbiome Alterations and Alzheimer's Disease: Modeling Strategies with Transgenic Mice. Biomedicines 2023; 11:1846. [PMID: 37509487 PMCID: PMC10377071 DOI: 10.3390/biomedicines11071846] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/30/2023] Open
Abstract
In the last decade, the role of the microbiota-gut-brain axis has been gaining momentum in the context of many neurodegenerative and metabolic disorders, including Alzheimer's disease (AD) and diabetes, respectively. Notably, a balanced gut microbiota contributes to the epithelial intestinal barrier maintenance, modulates the host immune system, and releases neurotransmitters and/or neuroprotective short-chain fatty acids. However, dysbiosis may provoke immune dysregulation, impacting neuroinflammation through peripheral-central immune communication. Moreover, lipopolysaccharide or detrimental microbial end-products can cross the blood-brain barrier and induce or at least potentiate the neuropathological progression of AD. Thus, after repeated failure to find a cure for this dementia, a necessary paradigmatic shift towards considering AD as a systemic disorder has occurred. Here, we present an overview of the use of germ-free and/or transgenic animal models as valid tools to unravel the connection between dysbiosis, metabolic diseases, and AD, and to investigate novel therapeutical targets. Given the high impact of dietary habits, not only on the microbiota but also on other well-established AD risk factors such as diabetes or obesity, consistent changes of lifestyle along with microbiome-based therapies should be considered as complementary approaches.
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Affiliation(s)
- Juan Antonio López-Villodres
- Departamento Fisiologia Humana, Histologia Humana, Anatomia Patologica y Educacion Fisica y Deportiva, Facultad de Medicina, Universidad de Malaga, 29071 Malaga, Spain
| | - Alejandro Escamilla
- Departamento Fisiologia Humana, Histologia Humana, Anatomia Patologica y Educacion Fisica y Deportiva, Facultad de Medicina, Universidad de Malaga, 29071 Malaga, Spain
- Instituto de Investigacion Biomedica de Malaga-IBIMA-Plataforma Bionand, 29071 Malaga, Spain
| | - Silvia Mercado-Sáenz
- Departamento Fisiologia Humana, Histologia Humana, Anatomia Patologica y Educacion Fisica y Deportiva, Facultad de Medicina, Universidad de Malaga, 29071 Malaga, Spain
| | - Carmen Alba-Tercedor
- Departamento Fisiologia Humana, Histologia Humana, Anatomia Patologica y Educacion Fisica y Deportiva, Facultad de Medicina, Universidad de Malaga, 29071 Malaga, Spain
| | - Luis Manuel Rodriguez-Perez
- Departamento Fisiologia Humana, Histologia Humana, Anatomia Patologica y Educacion Fisica y Deportiva, Facultad de Medicina, Universidad de Malaga, 29071 Malaga, Spain
- Instituto de Investigacion Biomedica de Malaga-IBIMA-Plataforma Bionand, 29071 Malaga, Spain
| | - Isabel Arranz-Salas
- Departamento Fisiologia Humana, Histologia Humana, Anatomia Patologica y Educacion Fisica y Deportiva, Facultad de Medicina, Universidad de Malaga, 29071 Malaga, Spain
- Instituto de Investigacion Biomedica de Malaga-IBIMA-Plataforma Bionand, 29071 Malaga, Spain
- Unidad de Anatomia Patologica, Hospital Universitario Virgen de la Victoria, 29010 Malaga, Spain
| | - Raquel Sanchez-Varo
- Departamento Fisiologia Humana, Histologia Humana, Anatomia Patologica y Educacion Fisica y Deportiva, Facultad de Medicina, Universidad de Malaga, 29071 Malaga, Spain
- Instituto de Investigacion Biomedica de Malaga-IBIMA-Plataforma Bionand, 29071 Malaga, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
| | - Diego Bermúdez
- Departamento Fisiologia Humana, Histologia Humana, Anatomia Patologica y Educacion Fisica y Deportiva, Facultad de Medicina, Universidad de Malaga, 29071 Malaga, Spain
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16
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Dvornikova KA, Platonova ON, Bystrova EY. Inflammatory Bowel Disease: Crosstalk between Histamine, Immunity, and Disease. Int J Mol Sci 2023; 24:9937. [PMID: 37373085 DOI: 10.3390/ijms24129937] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/30/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Inflammatory bowel disease (IBD) is increasingly recognized as a serious, worldwide public health concern. It is generally acknowledged that a variety of factors play a role in the pathogenesis of this group of chronic inflammatory diseases. The diversity of molecular actors involved in IBD does not allow us to fully assess the causal relationships existing in such interactions. Given the high immunomodulatory activity of histamine and the complex immune-mediated nature of inflammatory bowel disease, the role of histamine and its receptors in the gut may be significant. This paper has been prepared to provide a schematic of the most important and possible molecular signaling pathways related to histamine and its receptors and to assess their relevance for the development of therapeutic approaches.
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Affiliation(s)
| | - Olga N Platonova
- I.P. Pavlov Institute of Physiology RAS, St. Petersburg 199034, Russia
| | - Elena Y Bystrova
- I.P. Pavlov Institute of Physiology RAS, St. Petersburg 199034, Russia
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17
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Bastings JJAJ, Venema K, Blaak EE, Adam TC. Influence of the gut microbiota on satiety signaling. Trends Endocrinol Metab 2023; 34:243-255. [PMID: 36870872 DOI: 10.1016/j.tem.2023.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/09/2023] [Accepted: 02/09/2023] [Indexed: 03/06/2023]
Abstract
Recent studies show a link between the gut microbiota and the regulation of satiety and energy intake, processes that contribute to the development and pathophysiology of metabolic diseases. However, this link is predominantly established in animal and in vitro studies, whereas human intervention studies are scarce. In this review we focus on recent evidence linking satiety and the gut microbiome, with specific emphasis on gut microbial short-chain fatty acids (SCFAs). Based on a systematic search we provide an overview of human studies linking the intake of prebiotics with gut microbial alterations and satiety signaling. Our outcomes highlight the importance of in-depth examination of the gut microbiota in relation to satiety and provide insights into recent and future studies in this field.
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Affiliation(s)
- Jacco J A J Bastings
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Koen Venema
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands; Centre for Healthy Eating and Food Innovation, Maastricht University, Campus Venlo, Venlo, The Netherlands
| | - Ellen E Blaak
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands.
| | - Tanja C Adam
- Department of Nutrition and Movement Sciences, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands
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18
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Li C, Wang S, Ma X, Wang T, Lu R, Jia X, Leng Z, Kong X, Zhang J, Li L. Ranitidine as an adjuvant regulates macrophage polarization and activates CTLs through the PI3K-Akt2 signaling pathway. Int Immunopharmacol 2023; 116:109729. [PMID: 37800555 DOI: 10.1016/j.intimp.2023.109729] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/30/2022] [Accepted: 01/09/2023] [Indexed: 02/19/2023]
Abstract
Adjuvants are an indispensable component of vaccines, but there are few adjuvants for human vaccines. H2 receptor blockers, inhibiting gastric acid secretion, have immune enhancement effects. Ranitidine (RAN) is a water-soluble H2 receptor blocker, and whether it has an immune-enhancing effect is still unknown. In this study, flow cytometry, western blotting, and immunofluorescence methods were used to analyze whether RAN could activate macrophage polarization to the M1 phenotype in vivo and in vitro. Here, we found that the M1 inflammatory cytokine levels and surface markers in RAW264.7 cells were upregulated by NF-κB activation, possibly through the PI3K-Akt2 signaling pathway, after RAN treatment. Endocytic function was also enhanced by feedback regulation of Akt2/GSK3β/Dynmin1 signaling. Furthermore, to evaluate the adjuvant function of RAN, we used OVA plus RAN as a vaccine to inhibit the growth of B16-OVA tumors in mice. We also found that in the RAN adjuvant group, macrophage polarization to M1, Th1 cell differentiation, and cytotoxic T lymphocyte (CTL) activation were significantly upregulated. The tumor growth of mice was inhibited, and the survival rate of mice was significantly improved. This study provides new evidence for the mechanism by which RAN activates the immune response and is expected to provide a new strategy for the research and development of tumor vaccine adjuvants.
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Affiliation(s)
- Chenglin Li
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao 266071, Shandong, China
| | - Shuang Wang
- School of Basic Medicine, Qingdao University, Qingdao 266071, Shandong, China.
| | - Xiaoran Ma
- School of Basic Medicine, Qingdao University, Qingdao 266071, Shandong, China
| | - Tiantian Wang
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao 266071, Shandong, China
| | - Ran Lu
- School of Basic Medicine, Qingdao University, Qingdao 266071, Shandong, China
| | - Xihui Jia
- School of Basic Medicine, Qingdao University, Qingdao 266071, Shandong, China
| | - Zhe Leng
- Department of Gynecology, Qingdao Women and Children's Hospital, Qingdao 266000, China
| | - Xiaowen Kong
- School of Stomatology, Qingdao University, Qingdao 266071, China
| | - Jinyu Zhang
- School of Basic Medicine, Qingdao University, Qingdao 266071, Shandong, China
| | - Ling Li
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao 266071, Shandong, China.
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19
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Sharma S, Hegde P, Panda S, Orimoloye MO, Aldrich CC. Drugging the microbiome: targeting small microbiome molecules. Curr Opin Microbiol 2023; 71:102234. [PMID: 36399893 DOI: 10.1016/j.mib.2022.102234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/12/2022] [Accepted: 10/17/2022] [Indexed: 11/17/2022]
Abstract
The human microbiome represents a large and diverse collection of microbes that plays an integral role in human physiology and pathophysiology through interactions with the host and within the microbial community. While early work exploring links between microbiome signatures and diseases states has been associative, emerging evidence demonstrates the metabolic products of the human microbiome have more proximal causal effects on disease phenotypes. The therapeutic implications of this shift are profound as manipulation of the microbiome by the administration of live biotherapeutics, ongoing, can now be pursued alongside research efforts toward describing inhibitors of key microbiome enzymes involved in the biosynthesis of metabolites implicated in various disease states and processing of host-derived metabolites. With growing interest in 'drugging the microbiome', we review few notable microbial metabolites for which traditional drug-development campaigns have yielded compounds with therapeutic promise.
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Affiliation(s)
- Sachin Sharma
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN, USA
| | - Pooja Hegde
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN, USA
| | - Subhankar Panda
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN, USA
| | - Moyosore O Orimoloye
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN, USA
| | - Courtney C Aldrich
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN, USA.
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20
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Wang Z, Shao SL, Xu XH, Zhao X, Wang MY, Chen A, Cong HY. Helicobacter pylori and gastric microbiota homeostasis: progress and prospects. Future Microbiol 2023; 18:137-157. [PMID: 36688318 DOI: 10.2217/fmb-2022-0102] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Helicobacter pylori, a Gram-negative microaerobic bacteria belonging to the phylum Proteobacteria, can colonize in the stomach and duodenum, and cause a series of gastrointestinal diseases such as gastritis, gastric ulcer and even gastric cancer. At present, the high diversity of the microorganisms in the stomach has been confirmed with culture-independent methods; some researchers have also studied the stomach microbiota composition at different stages of H. pylori carcinogenesis. Here, we mainly review the possible role of H. pylori-mediated microbiota changes in the occurrence and development of gastric cancer to provide new ideas for preventing H. pylori infection and regulating microecological imbalance.
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Affiliation(s)
- Zan Wang
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China
| | - Shu-Li Shao
- Department of Central Lab, Weihai Municipal Hospital. Weihai, Shandong, 264200, People's Republic of China
| | - Xiao-Han Xu
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China
| | - Xue Zhao
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China
| | - Ming-Yi Wang
- Department of Central Lab, Weihai Municipal Hospital. Weihai, Shandong, 264200, People's Republic of China
| | - Ai Chen
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China.,Department of Central Lab, Weihai Municipal Hospital. Weihai, Shandong, 264200, People's Republic of China
| | - Hai-Yan Cong
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, 261053, People's Republic of China.,Department of Central Lab, Weihai Municipal Hospital. Weihai, Shandong, 264200, People's Republic of China
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21
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Hashikura N, Murakami R, Sakurai T, Horigome A, Toda K, Xiao JZ, Odamaki T. Synbiotics of Bifidobacterium breve MCC1274 and lactulose enhances production of tryptophan metabolites in fermented human fecal communities. Food Res Int 2023; 163:112308. [PMID: 36596205 DOI: 10.1016/j.foodres.2022.112308] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022]
Abstract
Probiotics and prebiotics have beneficial effects on host physiology via metabolites from the gut microbiota in addition to their own. Here, we used a pH-controlled single-batch fermenter as a human gut microbiota model. We conducted fecal fermentation with Bifidobacterium breve MCC1274 (probiotic), lactulose (prebiotic), or a combination of both (synbiotic) to evaluate their influence on the gut environment. Fecal inoculum without the probiotic and prebiotic was used as the control. Principal coordinate analysis (PCoA), based on the composition of gut microbiota, showed a significant difference among the groups. The relative abundance of Bifidobacterium was significantly higher in the synbiotic group, compared to that in the other three treatment groups. The relative abundance of Blautia was the highest in the control group among the four groups. CE-TOFMS and LC-TOFMS showed that the number of metabolites detected in the synbiotic group was the highest (352 in total); 29 of the 310 hydrophilic metabolites and 17 of the 107 lipophilic metabolites were significantly different among the four groups in the Kruskal-Wallis test. A clustering based on 46 metabolites indicated that tryptophan-metabolites such as indole-3-lactic acid (ILA), indole-3-ethanol, and indole-3-carboxaldehyde, were included in a sub cluster composed of metabolites enriched in the synbiotic group. Spermidine, a major polyamine, was enriched in the two groups supplemented with the probiotic whereas spermine was enriched only in the synbiotic group. Not all metabolites enriched in the probiotic and/or synbiotic groups were found in the monocultures of the probiotic strain with or without the prebiotics. This implies that some of the metabolites were produced through the interaction of the fecal microbiota with the inoculated probiotic strain. Co-abundance networking analysis indicated the differences in the correlations between the relative abundance of the fecal microbiota genus and the tryptophan metabolites in each group. There was a strong correlation between ldh4 gene abundance and ILA concentration in the fecal fermentation. The copy number of ldh4 gene was significantly higher in the groups with the probiotic than that in the control group. In conclusion, synbiotics could enhance the production of signaling molecules in the gut environment. Our results provide an insight into more effective administration of probiotics at the molecular level.
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Affiliation(s)
- Nanami Hashikura
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - Ryuta Murakami
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - Takuma Sakurai
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - Ayako Horigome
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - Kazuya Toda
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - Jin-Zhong Xiao
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - Toshitaka Odamaki
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan.
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22
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Forde B, Yao L, Shaha R, Murphy S, Lunjani N, O'Mahony L. Immunomodulation by foods and microbes: Unravelling the molecular tango. Allergy 2022; 77:3513-3526. [PMID: 35892227 PMCID: PMC10087875 DOI: 10.1111/all.15455] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/15/2022] [Accepted: 07/23/2022] [Indexed: 01/28/2023]
Abstract
Metabolic health and immune function are intimately connected via diet and the microbiota. Nearly 90% of all immune cells in the body are associated with the gastrointestinal tract and these immune cells are continuously exposed to a wide range of microbes and microbial-derived compounds, with important systemic ramifications. Microbial dysbiosis has consistently been observed in patients with atopic dermatitis, food allergy and asthma and the molecular mechanisms linking changes in microbial populations with disease risk and disease endotypes are being intensively investigated. The discovery of novel bacterial metabolites that impact immune function is at the forefront of host-microbe research. Co-evolution of microbial communities within their hosts has resulted in intertwined metabolic pathways that affect physiological and pathological processes. However, recent dietary and lifestyle changes are thought to negatively influence interactions between microbes and their host. This review provides an overview of some of the critical metabolite-receptor interactions that have been recently described, which may underpin the immunomodulatory effects of the microbiota, and are of relevance for allergy, asthma and infectious diseases.
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Affiliation(s)
- Brian Forde
- APC Microbiome Ireland, UCC, Cork, Ireland.,School of Microbiology, UCC, Cork, Ireland
| | - Lu Yao
- APC Microbiome Ireland, UCC, Cork, Ireland.,School of Microbiology, UCC, Cork, Ireland
| | - Rupin Shaha
- APC Microbiome Ireland, UCC, Cork, Ireland.,School of Microbiology, UCC, Cork, Ireland
| | | | - Nonhlanhla Lunjani
- APC Microbiome Ireland, UCC, Cork, Ireland.,University of Cape Town, Cape Town, South Africa
| | - Liam O'Mahony
- APC Microbiome Ireland, UCC, Cork, Ireland.,School of Microbiology, UCC, Cork, Ireland.,Department of Medicine, UCC, Cork, Ireland
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23
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Crosstalk between the Gut and Brain in Ischemic Stroke: Mechanistic Insights and Therapeutic Options. Mediators Inflamm 2022; 2022:6508046. [PMID: 36267243 PMCID: PMC9578915 DOI: 10.1155/2022/6508046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 09/28/2022] [Accepted: 10/01/2022] [Indexed: 11/18/2022] Open
Abstract
There has been a significant amount of interest in the past two decades in the study of the evolution of the gut microbiota, its internal and external impacts on the gut, and risk factors for cerebrovascular disorders such as cerebral ischemic stroke. The network of bidirectional communication between gut microorganisms and their host is known as the microbiota-gut-brain axis (MGBA). There is mounting evidence that maintaining gut microbiota homeostasis can frequently enhance the effectiveness of ischemic stroke treatment by modulating immune, metabolic, and inflammatory responses through MGBA. To effectively monitor and cure ischemic stroke, restoring a healthy microbial ecology in the gut may be a critical therapeutic focus. This review highlights mechanistic insights on the MGBA in disease pathophysiology. This review summarizes the role of MGBA signaling in the development of stroke risk factors such as aging, hypertension, obesity, diabetes, and atherosclerosis, as well as changes in the microbiota in experimental or clinical populations. In addition, this review also examines dietary changes, the administration of probiotics and prebiotics, and fecal microbiota transplantation as treatment options for ischemic stroke as potential health benefits. It will become more apparent how the MGBA affects human health and disease with continuing advancements in this emerging field of biomedical sciences.
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24
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Albrich WC, Ghosh TS, Ahearn-Ford S, Mikaeloff F, Lunjani N, Forde B, Suh N, Kleger GR, Pietsch U, Frischknecht M, Garzoni C, Forlenza R, Horgan M, Sadlier C, Negro TR, Pugin J, Wozniak H, Cerny A, Neogi U, O’Toole PW, O’Mahony L. A high-risk gut microbiota configuration associates with fatal hyperinflammatory immune and metabolic responses to SARS-CoV-2. Gut Microbes 2022; 14:2073131. [PMID: 35574937 PMCID: PMC9116414 DOI: 10.1080/19490976.2022.2073131] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Protection against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and associated clinical sequelae requires well-coordinated metabolic and immune responses that limit viral spread and promote recovery of damaged systems. However, the role of the gut microbiota in regulating these responses has not been thoroughly investigated. In order to identify mechanisms underpinning microbiota interactions with host immune and metabolic systems that influence coronavirus disease 2019 (COVID-19) outcomes, we performed a multi-omics analysis on hospitalized COVID-19 patients and compared those with the most severe outcome (i.e. death, n = 41) to those with severe non-fatal disease (n = 89), or mild/moderate disease (n = 42), that recovered. A distinct subset of 8 cytokines (e.g. TSLP) and 140 metabolites (e.g. quinolinate) in sera identified those with a fatal outcome to infection. In addition, elevated levels of multiple pathobionts and lower levels of protective or anti-inflammatory microbes were observed in the fecal microbiome of those with the poorest clinical outcomes. Weighted gene correlation network analysis (WGCNA) identified modules that associated severity-associated cytokines with tryptophan metabolism, coagulation-linked fibrinopeptides, and bile acids with multiple pathobionts, such as Enterococcus. In contrast, less severe clinical outcomes are associated with clusters of anti-inflammatory microbes such as Bifidobacterium or Ruminococcus, short chain fatty acids (SCFAs) and IL-17A. Our study uncovered distinct mechanistic modules that link host and microbiome processes with fatal outcomes to SARS-CoV-2 infection. These features may be useful to identify at risk individuals, but also highlight a role for the microbiome in modifying hyperinflammatory responses to SARS-CoV-2 and other infectious agents.
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Affiliation(s)
- Werner C. Albrich
- Division of Infectious Diseases & Hospital Epidemiology, Cantonal Hospital St. Gallen;St. Gallen, Switzerland,CONTACT Liam O’Mahony Division of Infectious Diseases & Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Tarini Shankar Ghosh
- School of Microbiology, University College Cork;Cork, Ireland,APC Microbiome Ireland, University College Cork; Cork, Ireland
| | | | - Flora Mikaeloff
- The Systems Virology Lab, Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institute;Stockholm, Sweden
| | - Nonhlanhla Lunjani
- APC Microbiome Ireland, University College Cork; Cork, Ireland,Department of Dermatology, University of Cape Town; Cape Town, South Africa
| | - Brian Forde
- School of Microbiology, University College Cork;Cork, Ireland,APC Microbiome Ireland, University College Cork; Cork, Ireland
| | - Noémie Suh
- Division of Intensive Care, Geneva University Hospitals and the University of Geneva Faculty of Medicine;Geneva, Switzerland
| | - Gian-Reto Kleger
- Division of Intensive Care, Cantonal Hospital St. Gallen;St. Gallen, Switzerland
| | - Urs Pietsch
- Department of Anesthesia, Intensive Care, Emergency and Pain Medicine, Cantonal Hospital St. Gallen;St. Gallen, Switzerland
| | - Manuel Frischknecht
- Division of Infectious Diseases & Hospital Epidemiology, Cantonal Hospital St. Gallen;St. Gallen, Switzerland
| | - Christian Garzoni
- Clinic of Internal Medicine and Infectious Diseases, Clinica Luganese Moncucco;Lugano, Switzerland,Department of Infectious Diseases, Bern University Hospital; Bern, Switzerland
| | | | - Mary Horgan
- Department of Medicine, University College Cork; Cork, Ireland,Department of Infectious Diseases, Cork University Hospital; Cork, Ireland
| | - Corinna Sadlier
- Department of Medicine, University College Cork; Cork, Ireland,Department of Infectious Diseases, Cork University Hospital; Cork, Ireland
| | - Tommaso Rochat Negro
- Division of Intensive Care, Geneva University Hospitals and the University of Geneva Faculty of Medicine;Geneva, Switzerland
| | - Jérôme Pugin
- Division of Intensive Care, Geneva University Hospitals and the University of Geneva Faculty of Medicine;Geneva, Switzerland
| | - Hannah Wozniak
- Division of Intensive Care, Geneva University Hospitals and the University of Geneva Faculty of Medicine;Geneva, Switzerland
| | | | - Ujjwal Neogi
- The Systems Virology Lab, Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institute;Stockholm, Sweden
| | - Paul W. O’Toole
- School of Microbiology, University College Cork;Cork, Ireland,APC Microbiome Ireland, University College Cork; Cork, Ireland
| | - Liam O’Mahony
- School of Microbiology, University College Cork;Cork, Ireland,APC Microbiome Ireland, University College Cork; Cork, Ireland,Department of Medicine, University College Cork; Cork, Ireland,Werner C. Albrich School of Microbiology, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Medicine, University College Cork, Cork, Ireland
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25
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Ganesan R, Jeong JJ, Kim DJ, Suk KT. Recent Trends of Microbiota-Based Microbial Metabolites Metabolism in Liver Disease. Front Med (Lausanne) 2022; 9:841281. [PMID: 35615096 PMCID: PMC9125096 DOI: 10.3389/fmed.2022.841281] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 04/19/2022] [Indexed: 12/12/2022] Open
Abstract
The gut microbiome and microbial metabolomic influences on liver diseases and their diagnosis, prognosis, and treatment are still controversial. Research studies have provocatively claimed that the gut microbiome, metabolomics understanding, and microbial metabolite screening are key approaches to understanding liver cancer and liver diseases. An advance of logical innovations in metabolomics profiling, the metabolome inclusion, challenges, and the reproducibility of the investigations at every stage are devoted to this domain to link the common molecules across multiple liver diseases, such as fatty liver, hepatitis, and cirrhosis. These molecules are not immediately recognizable because of the huge underlying and synthetic variety present inside the liver cellular metabolome. This review focuses on microenvironmental metabolic stimuli in the gut-liver axis. Microbial small-molecule profiling (i.e., semiquantitative monitoring, metabolic discrimination, target profiling, and untargeted profiling) in biological fluids has been incompletely addressed. Here, we have reviewed the differential expression of the metabolome of short-chain fatty acids (SCFAs), tryptophan, one-carbon metabolism and bile acid, and the gut microbiota effects are summarized and discussed. We further present proof-of-evidence for gut microbiota-based metabolomics that manipulates the host's gut or liver microbes, mechanosensitive metabolite reactions and potential metabolic pathways. We conclude with a forward-looking perspective on future attention to the “dark matter” of the gut microbiota and microbial metabolomics.
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26
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Abstract
Environmental chemicals can alter gut microbial community composition, known as dysbiosis. However, the gut microbiota is a highly dynamic system and its functions are still largely underexplored. Likewise, it is unclear whether xenobiotic exposure affects host health through impairing host-microbiota interactions. Answers to this question not only can lead to a more precise understanding of the toxic effects of xenobiotics but also can provide new targets for the development of new therapeutic strategies. Here, we aim to identify the major challenges in the field of microbiota-exposure research and highlight the need to exam the health effects of xenobiotic-induced gut microbiota dysbiosis in host bodies. Although the changes of gut microbiota frequently co-occur with the xenobiotic exposure, the causal relationship of xenobiotic-induced microbiota dysbiosis and diseases is rarely established. The high dynamics of the gut microbiota and the complex interactions among exposure, microbiota, and host, are the major challenges to decipher the specific health effects of microbiota dysbiosis. The next stage of study needs to combine various technologies to precisely assess the xenobiotic-induced gut microbiota perturbation and the subsequent health effects in host bodies. The exposure, gut microbiota dysbiosis, and disease outcomes have to be causally linked. Many microbiota-host interactions are established by previous studies, including signaling metabolites and response pathways in the host, which may use as start points for future research to examine the mechanistic interactions of exposure, gut microbiota, and host health. In conclusion, to precisely understand the toxicity of xenobiotics and develop microbiota-based therapies, the causal and mechanistic links of exposure and microbiota dysbiosis have to be established in the next stage study.
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Affiliation(s)
- Liang Chi
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, NC, United States
| | - Pengcheng Tu
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, NC, United States
| | - Hongyu Ru
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, NC, United States
| | - Kun Lu
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, NC, United States,CONTACT Kun Lu Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, NC27599, United States
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27
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Effects of divalent cations on the physical, conformational and immunological properties of bovine allergen β-lactoglobulin aggregates. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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28
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Metabolic Fluctuations in the Human Stool Obtained from Blastocystis Carriers and Non-Carriers. Metabolites 2021; 11:metabo11120883. [PMID: 34940641 PMCID: PMC8708241 DOI: 10.3390/metabo11120883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/26/2021] [Accepted: 12/09/2021] [Indexed: 12/12/2022] Open
Abstract
Blastocystis is an obligate anaerobic microbial eukaryote that frequently inhabits the gastrointestinal tract. Despite this prevalence, very little is known about the extent of its genetic diversity, pathogenicity, and interaction with the rest of the microbiome and its host. Although the organism is morphologically static, it has no less than 28 genetically distinct subtypes (STs). Reports on the pathogenicity of Blastocystis are conflicting. The association between Blastocystis and intestinal bacterial communities is being increasingly explored. Nonetheless, similar investigations extending to the metabolome are non-existent.Using established NMR metabolomics protocols in 149 faecal samples from individuals from South Korea (n = 38), Thailand (n = 44) and Turkey (n = 69), we have provided a snapshot of the core metabolic compounds present in human stools with (B+) and without (B−) Blastocystis. Samples included hosts with gastrointestinal symptoms and asymptomatics. A total of nine, 62 and 98 significant metabolites were associated with Blastocystis carriage in the South Korean, Thai and Turkish sample sets respectively, with a number of metabolites increased in colonised groups. The metabolic profiles of B+ and B− samples from all countries were distinct and grouped separately in the partial least squares-discriminant analysis (PLS-DA). Typical inflammation-related metabolites negatively associated with Blastocystis positive samples. This data will assist in directing future studies underlying the involvement of Blastocystis in physiological processes of both the gut microbiome and the host. Future studies using metabolome and microbiome data along with host physiology and immune responses information will contribute significantly towards elucidating the role of Blastocystis in health and disease.
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29
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Anihouvi DGH, Henriet O, Kpoclou YE, Scippo M, Hounhouigan DJ, Anihouvi VB, Mahillon J. Bacterial diversity of smoked and smoked‐dried fish from West Africa: A metagenomic approach. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Dona G. H. Anihouvi
- Laboratory of Food and Environmental Microbiology Earth and Life Institute Faculty of Bioscience Engineering Croix du Sud Louvain‐la‐Neuve Belgium
- Laboratory of Food Sciences School of Nutrition, Food Sciences and Technology Faculty of Agronomic Sciences University of Abomey‐Calavi Jericho‐Cotonou Benin
| | - Olivier Henriet
- Laboratory of Food and Environmental Microbiology Earth and Life Institute Faculty of Bioscience Engineering Croix du Sud Louvain‐la‐Neuve Belgium
| | - Yénoukounmè Euloge Kpoclou
- Laboratory of Food Sciences School of Nutrition, Food Sciences and Technology Faculty of Agronomic Sciences University of Abomey‐Calavi Jericho‐Cotonou Benin
| | - Marie‐Louise Scippo
- Department of Food Sciences Laboratory of Food Analysis Faculty of Veterinary Medicine Fundamental and Applied Research for Animals & Health (FARAH) Veterinary Public HealthUniversity of Liège Liège Belgium
| | - Djidjoho Joseph Hounhouigan
- Laboratory of Food Sciences School of Nutrition, Food Sciences and Technology Faculty of Agronomic Sciences University of Abomey‐Calavi Jericho‐Cotonou Benin
| | - Victor Bienvenu Anihouvi
- Laboratory of Food Sciences School of Nutrition, Food Sciences and Technology Faculty of Agronomic Sciences University of Abomey‐Calavi Jericho‐Cotonou Benin
| | - Jacques Mahillon
- Laboratory of Food and Environmental Microbiology Earth and Life Institute Faculty of Bioscience Engineering Croix du Sud Louvain‐la‐Neuve Belgium
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30
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Sarasola MDLP, Táquez Delgado MA, Nicoud MB, Medina VA. Histamine in cancer immunology and immunotherapy. Current status and new perspectives. Pharmacol Res Perspect 2021; 9:e00778. [PMID: 34609067 PMCID: PMC8491460 DOI: 10.1002/prp2.778] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 03/25/2021] [Indexed: 12/11/2022] Open
Abstract
Cancer is the second leading cause of death globally and its incidence and mortality are rapidly increasing worldwide. The dynamic interaction of immune cells and tumor cells determines the clinical outcome of cancer. Immunotherapy comes to the forefront of cancer treatments, resulting in impressive and durable responses but only in a fraction of patients. Thus, understanding the characteristics and profiles of immune cells in the tumor microenvironment (TME) is a necessary step to move forward in the design of new immunomodulatory strategies that can boost the immune system to fight cancer. Histamine produces a complex and fine-tuned regulation of the phenotype and functions of the different immune cells, participating in multiple regulatory responses of the innate and adaptive immunity. Considering the important actions of histamine-producing immune cells in the TME, in this review we first address the most important immunomodulatory roles of histamine and histamine receptors in the context of cancer development and progression. In addition, this review highlights the current progress and foundational developments in the field of cancer immunotherapy in combination with histamine and pharmacological compounds targeting histamine receptors.
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Affiliation(s)
- María de la Paz Sarasola
- Laboratory of Tumor Biology and Inflammation, Institute for Biomedical Research (BIOMED), School of Medical SciencesPontifical Catholic University of Argentina (UCA), and the National Scientific and Technical Research Council (CONICET)Buenos AiresArgentina
| | - Mónica A. Táquez Delgado
- Laboratory of Tumor Biology and Inflammation, Institute for Biomedical Research (BIOMED), School of Medical SciencesPontifical Catholic University of Argentina (UCA), and the National Scientific and Technical Research Council (CONICET)Buenos AiresArgentina
| | - Melisa B. Nicoud
- Laboratory of Tumor Biology and Inflammation, Institute for Biomedical Research (BIOMED), School of Medical SciencesPontifical Catholic University of Argentina (UCA), and the National Scientific and Technical Research Council (CONICET)Buenos AiresArgentina
| | - Vanina A. Medina
- Laboratory of Tumor Biology and Inflammation, Institute for Biomedical Research (BIOMED), School of Medical SciencesPontifical Catholic University of Argentina (UCA), and the National Scientific and Technical Research Council (CONICET)Buenos AiresArgentina
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31
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Mou Z, Yang Y, Hall AB, Jiang X. The taxonomic distribution of histamine-secreting bacteria in the human gut microbiome. BMC Genomics 2021; 22:695. [PMID: 34563136 PMCID: PMC8465708 DOI: 10.1186/s12864-021-08004-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 09/13/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Biogenic histamine plays an important role in immune response, neurotransmission, and allergic response. Although endogenous histamine production has been extensively studied, the contributions of histamine produced by the human gut microbiota have not been explored due to the absence of a systematic annotation of histamine-secreting bacteria. RESULTS To identify the histamine-secreting bacteria from in the human gut microbiome, we conducted a systematic search for putative histamine-secreting bacteria in 36,554 genomes from the Genome Taxonomy Database and Unified Human Gastrointestinal Genome catalog. Using bioinformatic approaches, we identified 117 putative histamine-secreting bacteria species. A new three-component decarboxylation system including two colocalized decarboxylases and one transporter was observed in histamine-secreting bacteria among three different phyla. We found significant enrichment of histamine-secreting bacteria in patients with inflammatory bowel disease but not in patients with colorectal cancer suggesting a possible association between histamine-secreting bacteria and inflammatory bowel disease. CONCLUSIONS The findings of this study expand our knowledge of the taxonomic distribution of putative histamine-secreting bacteria in the human gut.
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Affiliation(s)
- Zhongyu Mou
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
| | - Yiyan Yang
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
| | - A Brantley Hall
- Center for Bioinformatics and Computational Biology, University of Maryland, College Park, MD, USA
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, USA
| | - Xiaofang Jiang
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA.
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32
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Significance of the Gut Microbiome for Viral Diarrheal and Extra-Intestinal Diseases. Viruses 2021; 13:v13081601. [PMID: 34452466 PMCID: PMC8402659 DOI: 10.3390/v13081601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/29/2021] [Accepted: 08/09/2021] [Indexed: 12/13/2022] Open
Abstract
The composition of the mammalian gut microbiome is very important for the health and disease of the host. Significant correlations of particular gut microbiota with host immune responsiveness and various infectious and noninfectious host conditions, such as chronic enteric infections, type 2 diabetes, obesity, asthma, and neurological diseases, have been uncovered. Recently, research has moved on to exploring the causalities of such relationships. The metabolites of gut microbiota and those of the host are considered in a ‘holobiontic’ way. It turns out that the host’s diet is a major determinant of the composition of the gut microbiome and its metabolites. Animal models of bacterial and viral intestinal infections have been developed to explore the interrelationships of diet, gut microbiome, and health/disease phenotypes of the host. Dietary fibers can act as prebiotics, and certain bacterial species support the host’s wellbeing as probiotics. In cases of Clostridioides difficile-associated antibiotic-resistant chronic diarrhea, transplantation of fecal microbiomes has sometimes cured the disease. Future research will concentrate on the definition of microbial/host/diet interrelationships which will inform rationales for improving host conditions, in particular in relation to optimization of immune responses to childhood vaccines.
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33
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Stražar M, Temba GS, Vlamakis H, Kullaya VI, Lyamuya F, Mmbaga BT, Joosten LAB, van der Ven AJAM, Netea MG, de Mast Q, Xavier RJ. Gut microbiome-mediated metabolism effects on immunity in rural and urban African populations. Nat Commun 2021; 12:4845. [PMID: 34381036 PMCID: PMC8357928 DOI: 10.1038/s41467-021-25213-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 06/30/2021] [Indexed: 12/18/2022] Open
Abstract
The human gut microbiota is increasingly recognized as an important factor in modulating innate and adaptive immunity through release of ligands and metabolites that translocate into circulation. Urbanizing African populations harbor large intestinal diversity due to a range of lifestyles, providing the necessary variation to gauge immunomodulatory factors. Here, we uncover a gradient of intestinal microbial compositions from rural through urban Tanzanian, towards European samples, manifested both in relative abundance and genomic variation observed in stool metagenomics. The rural population shows increased Bacteroidetes, led by Prevotella copri, but also presence of fungi. Measured ex vivo cytokine responses were significantly associated with 34 immunomodulatory microbes, which have a larger impact on circulating metabolites than non-significant microbes. Pathway effects on cytokines, notably TNF-α and IFN-γ, differential metabolome analysis and enzyme copy number enrichment converge on histidine and arginine metabolism as potential immunomodulatory pathways mediated by Bifidobacterium longum and Akkermansia muciniphila. The authors profile stool metagenomics and plasma metabolomics in Tanzanian individuals and uncover a gradient of gut microbial profiles, from rural through urban Tanzania towards Western populations. Integration with ex vivo blood microbial stimulations reveals immune responses associated with histidine and arginine pathways, mediated by Bifidobacterium longum and Akkermansia muciniphila.
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Affiliation(s)
| | - Godfrey S Temba
- Kilimanjaro Christian Medical University College, Moshi, Tanzania.,Kilimanjaro Clinical Research Institute, Kilimanjaro Christian Medical Centre, Moshi, Tanzania
| | - Hera Vlamakis
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Vesla I Kullaya
- Kilimanjaro Clinical Research Institute, Kilimanjaro Christian Medical Centre, Moshi, Tanzania.,Department of Respiratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Furaha Lyamuya
- Kilimanjaro Christian Medical University College, Moshi, Tanzania
| | - Blandina T Mmbaga
- Department of Pediatrics, Kilimanjaro Clinical Research Institute, Kilimanjaro Christian Medical Centre, Moshi, Tanzania
| | - Leo A B Joosten
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Andre J A M van der Ven
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands. .,Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.
| | - Quirijn de Mast
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ramnik J Xavier
- Broad Institute of MIT and Harvard, Cambridge, MA, USA. .,Center for Microbiome Informatics and Therapeutics, Massachusetts Institute of Technology, Cambridge, MA, USA. .,Center for Computational and Integrative Biology and Department of Molecular Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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34
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Chacón P, Vega-Rioja A, Doukkali B, Del Valle Rodríguez A, Bellido V, Puente Y, Alcañiz L, Rodríguez D, Palacios R, Cornejo-García JA, Monteseirín J, Rivas-Pérez D. Targeted inhibition of allergen-induced histamine production by neutrophils. FASEB J 2021; 35:e21483. [PMID: 33788304 DOI: 10.1096/fj.202001912r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 02/12/2021] [Accepted: 02/15/2021] [Indexed: 11/11/2022]
Abstract
Histamine is a critical inflammatory mediator in allergic diseases. We showed in a previous work that neutrophils from allergic patients produce histamine in response to allergens to which the patients were sensitized. Here, we investigate the molecular mechanisms involved in this process using peripheral blood neutrophils. We challenged these cells in vitro with allergens and analyzed histamine release in the culture supernatants. We also explored the effect of common therapeutic drugs that ameliorate allergic symptoms, as well as allergen-specific immunotherapy. Additionally, we examined the expression of histidine decarboxylase and diamine oxidase, critical enzymes in the metabolism of histamine, under allergen challenge. We show that allergen-induced histamine release is dependent on the activation of the phosphoinositide 3-kinase, mitogen-activated protein kinase p38, and extracellular signal-regulated kinase 1/2 signaling pathways. We also found a contribution of the phosphatase calcineurin to lesser extent. Anti-histamines, glucocorticoids, anti-M3-muscarinic receptor antagonists, and mainly β2 -receptor agonists abolished the allergen-dependent histamine release. Interestingly, allergen-specific immunotherapy canceled the histamine release through the downregulation of histidine decarboxylase expression. Our observations describe novel molecular mechanisms involved in the allergen-dependent histamine release by human neutrophils and provide new targets to inhibit histamine production.
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Affiliation(s)
- Pedro Chacón
- UGC de Alergología, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - Antonio Vega-Rioja
- UGC de Alergología, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - Bouchra Doukkali
- UGC de Alergología, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | | | - Virginia Bellido
- UGC de Alergología, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - Yolanda Puente
- UGC de Alergología, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - Lorena Alcañiz
- UGC de Dermatología, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | | | | | | | - Javier Monteseirín
- UGC de Alergología, Hospital Universitario Virgen Macarena, Sevilla, Spain.,Departamento de Medicina, Facultad de Medicina, Universidad de Sevilla, Sevilla, Spain
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35
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Lu L, Chen X, Liu Y, Yu X. Gut microbiota and bone metabolism. FASEB J 2021; 35:e21740. [PMID: 34143911 DOI: 10.1096/fj.202100451r] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 02/05/2023]
Abstract
Osteoporosis is the most common metabolic skeletal disease. It is characterized by the deterioration of the skeletal microarchitecture and bone loss, leading to ostealgia, and even bone fractures. Accumulating evidence has indicated that there is an inextricable relationship between the gut microbiota (GM) and bone homeostasis involving host-microbiota crosstalk. Any perturbation of the GM can play an initiating and reinforcing role in disrupting the bone remodeling balance during the development of osteoporosis. Although the GM is known to influence bone metabolism, the mechanisms associated with these effects remain unclear. Herein, we review the current knowledge of how the GM affects bone metabolism in health and disease, summarize the correlation between pathogen-associated molecular patterns of GM structural components and bone metabolism, and discuss the potential mechanisms underlying how GM metabolites regulate bone turnover. Deciphering the complicated relationship between the GM and bone health will provide new insights into the prevention and treatment of osteoporosis.
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Affiliation(s)
- Lingyun Lu
- Department of Endocrinology and Metabolism, Laboratory of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China.,Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoxuan Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yi Liu
- Department of Rheumatology and Immunology, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xijie Yu
- Department of Endocrinology and Metabolism, Laboratory of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
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36
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Qian XH, Song XX, Liu XL, Chen SD, Tang HD. Inflammatory pathways in Alzheimer's disease mediated by gut microbiota. Ageing Res Rev 2021; 68:101317. [PMID: 33711509 DOI: 10.1016/j.arr.2021.101317] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 02/25/2021] [Accepted: 03/08/2021] [Indexed: 12/14/2022]
Abstract
In the past decade, numerous studies have demonstrated the close relationship between gut microbiota and the occurrence and development of Alzheimer's disease (AD). However, the specific mechanism is still unclear. Both the neuroinflammation and systemic inflammation serve as the key hubs to accelerate the process of AD by promoting pathology and damaging neuron. What's more, the gut microbiota is also crucial for the regulation of inflammation. Therefore, this review focused on the role of gut microbiota in AD through inflammatory pathways. Firstly, this review summarized the relationship and interaction among gut microbiota, inflammation, and AD. Secondly, the direct and indirect regulatory effects of gut microbiota on AD through inflammatory pathways were described. These effects were mainly mediated by the component of the gut microbiota (lipopolysaccharides (LPS) and amyloid peptides), the metabolites of bacteria (short-chain fatty acids, branched amino acids, and neurotransmitters) and functional by-products (bile acids). In addition, potential treatments (fecal microbiota transplantation, antibiotics, probiotics, prebiotics, and dietary interventions) for AD were also discussed through these mechanisms. Finally, according to the current research status, the key problems to be solved in the future studies were proposed.
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Affiliation(s)
- Xiao-Hang Qian
- Department of Neurology and Institute of Neurology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Xiao-Xuan Song
- Department of Neurology and Institute of Neurology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Xiao-Li Liu
- Department of Neurology, Shanghai Fengxian District Central Hospital, Shanghai Jiao Tong University Affiliated Sixth People's Hospital South Campus, Shanghai, 201406, China.
| | - Sheng-di Chen
- Department of Neurology and Institute of Neurology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Hui-Dong Tang
- Department of Neurology and Institute of Neurology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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37
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Wang Y, Cao Q, Cao Q, Gan J, Sun N, Yang CG, Bae T, Wu M, Lan L. Histamine activates HinK to promote the virulence of Pseudomonas aeruginosa. Sci Bull (Beijing) 2021; 66:1101-1118. [PMID: 36654344 DOI: 10.1016/j.scib.2021.01.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/25/2020] [Accepted: 12/28/2020] [Indexed: 01/20/2023]
Abstract
During infections, bacteria stimulate host cells to produce and release histamine, which is a key mediator of vital cellular processes in animals. However, the mechanisms underlying the bacterial cell's ability to sense and respond to histamine are poorly understood. Herein, we show that HinK, a LysR-type transcriptional regulator, is required to evoke responses to histamine in Pseudomonas aeruginosa, an important human pathogen. HinK directly binds to and activates the promoter of genes involved in histamine uptake and metabolism, iron acquisition, and Pseudomonas quinolone signal (PQS) biosynthesis. The transcriptional regulatory activity of HinK is induced when histamine is present, and it occurs when HinK binds with imidazole-4-acetic acid (ImAA), a histamine metabolite whose production in P. aeruginosa depends on the HinK-activated histamine uptake and utilization operon hinDAC-pa0222. Importantly, the inactivation of HinK inhibits diverse pathogenic phenotypes of P. aeruginosa. These results suggest that histamine acts as an interkingdom signal and provide insights into the mechanism used by pathogenic bacteria to exploit host regulatory signals to promote virulence.
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Affiliation(s)
- Yaya Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Qiao Cao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; College of Life Science, Northwest University, Xi'an 710069, China
| | - Qin Cao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianhua Gan
- State Key Laboratory of Genetic Engineering, Shanghai Public Health Clinical Center, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai 201438, China
| | - Ning Sun
- The State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Cai-Guang Yang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Taeok Bae
- Department of Microbiology and Immunology, Indiana University School of Medicine-Northwest, Gary IN 46408, USA
| | - Min Wu
- Department of Biomedical Sciences, University of North Dakota, Grand Forks ND 58203-9037, USA
| | - Lefu Lan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; NMPA Key Laboratory for Testing Technology of Pharmaceutical Microbiology, Shanghai Institute for Food and Drug Control, Shanghai 201203, China.
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38
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Krell T, Gavira JA, Velando F, Fernández M, Roca A, Monteagudo-Cascales E, Matilla MA. Histamine: A Bacterial Signal Molecule. Int J Mol Sci 2021; 22:6312. [PMID: 34204625 PMCID: PMC8231116 DOI: 10.3390/ijms22126312] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 02/07/2023] Open
Abstract
Bacteria have evolved sophisticated signaling mechanisms to coordinate interactions with organisms of other domains, such as plants, animals and human hosts. Several important signal molecules have been identified that are synthesized by members of different domains and that play important roles in inter-domain communication. In this article, we review recent data supporting that histamine is a signal molecule that may play an important role in inter-domain and inter-species communication. Histamine is a key signal molecule in humans, with multiple functions, such as being a neurotransmitter or modulator of immune responses. More recent studies have shown that bacteria have evolved different mechanisms to sense histamine or histamine metabolites. Histamine sensing in the human pathogen Pseudomonas aeruginosa was found to trigger chemoattraction to histamine and to regulate the expression of many virulence-related genes. Further studies have shown that many bacteria are able to synthesize and secrete histamine. The release of histamine by bacteria in the human gut was found to modulate the host immune responses and, at higher doses, to result in host pathologies. The elucidation of the role of histamine as an inter-domain signaling molecule is an emerging field of research and future investigation is required to assess its potential general nature.
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Affiliation(s)
- Tino Krell
- Department of Environmental Protection, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, Prof. Albareda 1, 18008 Granada, Spain; (F.V.); (E.M.-C.)
| | - José A. Gavira
- Laboratory of Crystallographic Studies, IACT (CSIC-UGR), Avenida de las Palmeras 4, 18100 Armilla, Spain;
| | - Félix Velando
- Department of Environmental Protection, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, Prof. Albareda 1, 18008 Granada, Spain; (F.V.); (E.M.-C.)
| | - Matilde Fernández
- Department of Microbiology, Facultad de Farmacia, Campus Universitario de Cartuja, Universidad de Granada, 18071 Granada, Spain; (M.F.); (A.R.)
| | - Amalia Roca
- Department of Microbiology, Facultad de Farmacia, Campus Universitario de Cartuja, Universidad de Granada, 18071 Granada, Spain; (M.F.); (A.R.)
| | - Elizabet Monteagudo-Cascales
- Department of Environmental Protection, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, Prof. Albareda 1, 18008 Granada, Spain; (F.V.); (E.M.-C.)
| | - Miguel A. Matilla
- Department of Environmental Protection, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, Prof. Albareda 1, 18008 Granada, Spain; (F.V.); (E.M.-C.)
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39
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Barcik W, Chiacchierini G, Bimpisidis Z, Papaleo F. Immunology and microbiology: how do they affect social cognition and emotion recognition? Curr Opin Immunol 2021; 71:46-54. [PMID: 34058687 DOI: 10.1016/j.coi.2021.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 05/01/2021] [Indexed: 12/25/2022]
Abstract
Social interactions profoundly influence animals' life. The quality of social interactions and many everyday life decisions are determined by a proper perception, processing and reaction to others' emotions. Notably, alterations in these social processes characterize a number of neurodevelopmental disorders, including autism spectrum disorders and schizophrenia. Increasing evidences support an implication of immune system vulnerability and inflammatory processes in disparate behavioral functions and the aforementioned neurodevelopmental disorders. In this review, we show a possible unifying view on how immune responses, within and outside the brain, and the communication between the immune system and brain responses might influence emotion recognition and related social responses. In particular, we highlight the importance of combining genetics, immunology and microbiology factors in understanding social behaviors. We underline the importance of better disentangling the whole machinery between brain-immune system interactions to better address the complexity of social processes.
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Affiliation(s)
- Weronika Barcik
- Genetics of Cognition Laboratory, Neuroscience Area, Istituto Italiano di Tecnologia, Genova, Italy
| | - Giulia Chiacchierini
- Genetics of Cognition Laboratory, Neuroscience Area, Istituto Italiano di Tecnologia, Genova, Italy
| | - Zisis Bimpisidis
- Genetics of Cognition Laboratory, Neuroscience Area, Istituto Italiano di Tecnologia, Genova, Italy
| | - Francesco Papaleo
- Genetics of Cognition Laboratory, Neuroscience Area, Istituto Italiano di Tecnologia, Genova, Italy; Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico, Milano, Italy.
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40
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Wei X, Tsai T, Howe S, Zhao J. Weaning Induced Gut Dysfunction and Nutritional Interventions in Nursery Pigs: A Partial Review. Animals (Basel) 2021; 11:1279. [PMID: 33946901 PMCID: PMC8146462 DOI: 10.3390/ani11051279] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/27/2021] [Accepted: 04/27/2021] [Indexed: 01/08/2023] Open
Abstract
Weaning is one of the most stressful events in the life of a pig. Unsuccessful weaning often leads to intestinal and immune system dysfunctions, resulting in poor growth performance as well as increased morbidity and mortality. The gut microbiota community is a complex ecosystem and is considered an "organ," producing various metabolites with many beneficial functions. In this review, we briefly introduce weaning-associated gut microbiota dysbiosis. Then, we explain the importance of maintaining a balanced gut microbiota. Finally, we discuss dietary supplements and their abilities to restore intestinal balance and improve the growth performance of weaning pigs.
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Affiliation(s)
| | | | | | - Jiangchao Zhao
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, AR 72701, USA; (X.W.); (T.T.); (S.H.)
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41
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Deng J, Liu L, Yang Q, Wei C, Zhang H, Xin H, Pan S, Liu Z, Wang D, Liu B, Gao L, Liu R, Pang Y, Chen X, Zheng J, Jin Q. Urinary metabolomic analysis to identify potential markers for the diagnosis of tuberculosis and latent tuberculosis. Arch Biochem Biophys 2021; 704:108876. [PMID: 33864753 DOI: 10.1016/j.abb.2021.108876] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 11/24/2022]
Abstract
Tuberculosis (TB) is a serious infectious disease with high infection and mortality rates. 5%-10% of the latent tuberculosis infections (LTBI) are likely to develop into active TB, and there are currently no clinical biomarkers that can distinguish between LTBI, active TB and other non-tuberculosis populations. Therefore, it is necessary to develop rapid diagnostic methods for active TB and LTBI. In this study, urinary metabolome of 30 active TB samples and the same number of LTBI and non-TB control samples were identified and analyzed by UPLC-Q Exactive MS. In total, 3744 metabolite components were obtained in ESI- mode and 4086 in ESI + mode. Orthogonal partial least square discriminant analysis (OPLS-DA) and hierarchical cluster analysis (HCA) showed that there were significant differences among LTBI, active TB and non-TB. Six differential metabolites were screened in positive and negative mode, 3-hexenoic acid, glutathione (GSH), glycochenodeoxycholate-3-sulfate, N-[4'-hydroxy-(E)-cinnamoyl]-l-aspartic acid, deoxyribose 5-phosphate and histamine. The overlapping pathways differential metabolites involved were mainly related to immune regulation and urea cycle. The results showed that the urine metabolism of TB patients was disordered and many metabolic pathways changed. Multivariate statistical analysis revealed that GSH and histamine were selected as potential molecular markers, with area under curve of receiver operating characteristic curve over 0.75. Among the multiple differential metabolites, GSH and histamine changed to varying degrees in active TB, LTBI and the non-TB control group. The levels of GSH and histamine in 48 urinary samples were measured by ELISA in validation phase, and the result in our study provided the potential for non-invasive biomarkers of TB.
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Affiliation(s)
- Jiaheng Deng
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Liguo Liu
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Qianting Yang
- National Clinical Research Center for Infectious Diseases, Guangdong Key Lab for Diagnosis & Treatment of Emerging Infectious Diseases, Shenzhen Third People's Hospital, Southern University of Science and Technology, Shenzhen, 518112, China
| | - Candong Wei
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Haoran Zhang
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Henan Xin
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Shouguo Pan
- Center for Diseases Control and Prevention of Zhongmu County, Zhongmu, 451450, China
| | - Zisen Liu
- Center for Diseases Control and Prevention of Zhongmu County, Zhongmu, 451450, China
| | - Dakuan Wang
- Center for Diseases Control and Prevention of Zhongmu County, Zhongmu, 451450, China
| | - Bo Liu
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Lei Gao
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Rongmei Liu
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, No 97, Machang, Tongzhou District, Beijing, 101149, China
| | - Yu Pang
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, No 97, Machang, Tongzhou District, Beijing, 101149, China
| | - Xinchun Chen
- Department of Pathogen Biology, Shenzhen University School of Medicine, Shenzhen, 518060, China
| | - Jianhua Zheng
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
| | - Qi Jin
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
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Boeri L, Perottoni S, Izzo L, Giordano C, Albani D. Microbiota-Host Immunity Communication in Neurodegenerative Disorders: Bioengineering Challenges for In Vitro Modeling. Adv Healthc Mater 2021; 10:e2002043. [PMID: 33661580 DOI: 10.1002/adhm.202002043] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/01/2021] [Indexed: 12/12/2022]
Abstract
Human microbiota communicates with its host by secreting signaling metabolites, enzymes, or structural components. Its homeostasis strongly influences the modulation of human tissue barriers and immune system. Dysbiosis-induced peripheral immunity response can propagate bacterial and pro-inflammatory signals to the whole body, including the brain. This immune-mediated communication may contribute to several neurodegenerative disorders, as Alzheimer's disease. In fact, neurodegeneration is associated with dysbiosis and neuroinflammation. The interplay between the microbial communities and the brain is complex and bidirectional, and a great deal of interest is emerging to define the exact mechanisms. This review focuses on microbiota-immunity-central nervous system (CNS) communication and shows how gut and oral microbiota populations trigger immune cells, propagating inflammation from the periphery to the cerebral parenchyma, thus contributing to the onset and progression of neurodegeneration. Moreover, an overview of the technological challenges with in vitro modeling of the microbiota-immunity-CNS axis, offering interesting technological hints about the most advanced solutions and current technologies is provided.
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Affiliation(s)
- Lucia Boeri
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta” Politecnico di Milano Piazza Leonardo da Vinci 32 Milan 20133 Italy
| | - Simone Perottoni
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta” Politecnico di Milano Piazza Leonardo da Vinci 32 Milan 20133 Italy
| | - Luca Izzo
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta” Politecnico di Milano Piazza Leonardo da Vinci 32 Milan 20133 Italy
| | - Carmen Giordano
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta” Politecnico di Milano Piazza Leonardo da Vinci 32 Milan 20133 Italy
| | - Diego Albani
- Department of Neuroscience Istituto di Ricerche Farmacologiche Mario Negri IRCCS via Mario Negri 2 Milan 20156 Italy
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43
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Lyte JM, Keane J, Eckenberger J, Anthony N, Shrestha S, Marasini D, Daniels KM, Caputi V, Donoghue AM, Lyte M. Japanese quail (Coturnix japonica) as a novel model to study the relationship between the avian microbiome and microbial endocrinology-based host-microbe interactions. MICROBIOME 2021; 9:38. [PMID: 33531080 PMCID: PMC7856774 DOI: 10.1186/s40168-020-00962-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 12/06/2020] [Indexed: 05/09/2023]
Abstract
BACKGROUND Microbial endocrinology, which is the study of neuroendocrine-based interkingdom signaling, provides a causal mechanistic framework for understanding the bi-directional crosstalk between the host and microbiome, especially as regards the effect of stress on health and disease. The importance of the cecal microbiome in avian health is well-recognized, yet little is understood regarding the mechanisms underpinning the avian host-microbiome relationship. Neuroendocrine plasticity of avian tissues that are focal points of host-microbiome interaction, such as the gut and lung, has likewise received limited attention. Avian in vivo models that enable the study of the neuroendocrine dynamic between host and microbiome are needed. As such, we utilized Japanese quail (Coturnix japonica) that diverge in corticosterone response to stress to examine the relationship between stress-related neurochemical concentrations at sites of host-microbe interaction, such as the gut, and the cecal microbiome. RESULTS Our results demonstrate that birds which contrast in corticosterone response to stress show profound separation in cecal microbial community structure as well as exhibit differences in tissue neurochemical concentrations and structural morphologies of the gut. Changes in neurochemicals known to be affected by the microbiome were also identified in tissues outside of the gut, suggesting a potential relationship in birds between the cecal microbiome and overall avian physiology. CONCLUSIONS The present study provides the first evidence that the structure of the avian cecal microbial community is shaped by selection pressure on the bird for neuroendocrine response to stress. Identification of unique region-dependent neurochemical changes in the intestinal tract following stress highlights environmental stressors as potential drivers of microbial endocrinology-based mechanisms of avian host-microbiome dialogue. Together, these results demonstrate that tissue neurochemical concentrations in the avian gut may be related to the cecal microbiome and reveal the Japanese quail as a novel avian model in which to further examine the mechanisms underpinning these relationships. Video abstract.
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Affiliation(s)
- Joshua M. Lyte
- Poultry Production and Product Safety Research, Agricultural Research Service, United States Department of Agriculture, Fayetteville, AR 72701 USA
| | - James Keane
- Department of Computer Science, Cork Institute of Technology, Cork, Ireland
| | - Julia Eckenberger
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Nicholas Anthony
- Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701 USA
| | - Sandip Shrestha
- Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701 USA
| | - Daya Marasini
- Weems Design Studio Inc., Suwanee, Georgia, USA/ Contractor to Centers for Disease control and Prevention, Atlanta, GA 30333 USA
| | - Karrie M. Daniels
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011 USA
| | | | - Annie M. Donoghue
- Poultry Production and Product Safety Research, Agricultural Research Service, United States Department of Agriculture, Fayetteville, AR 72701 USA
| | - Mark Lyte
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011 USA
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Ethridge AD, Bazzi MH, Lukacs NW, Huffnagle GB. Interkingdom Communication and Regulation of Mucosal Immunity by the Microbiome. J Infect Dis 2020; 223:S236-S240. [PMID: 33330908 DOI: 10.1093/infdis/jiaa748] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Intercellular communication and environmental sensing are most often mediated through ligand-receptor binding and signaling. This is true for both host cells and microbial cells. The ligands can be proteins (cytokines, growth factors, and peptides), modified lipids, nucleic acid derivatives and small molecules generated from metabolic pathways. These latter nonprotein metabolites play a much greater role in the overall function of mucosal immunity than previously recognized, and the list of potential immunomodulatory molecules derived from the microbiome is growing. The most well-studied microbial signals are the nonmetabolite microbe-associated molecular pattern molecules, such as lipopolysaccharide and teichoic acid, that bind to host pattern recognition receptors. Here, we will highlight the immunomodulatory activities of other microbiome-derived molecules, such as short-chain fatty acids, bile acids, uric acid, prostaglandins, histamine, catecholamines, aryl hydrocarbon receptor ligands, and 12,13-diHOME.
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Affiliation(s)
| | - Malak H Bazzi
- Molecular, Cellular & Developmental Biology Graduate Program, University of Michigan, Ann Arbor, Michigan, USA
| | - Nicholas W Lukacs
- Immunology Graduate Program, University of Michigan, Ann Arbor, Michigan, USA.,Department of Pathology, University of Michigan, Ann Arbor, Michigan, USA.,Mary H. Weiser Food Allergy Center, University of Michigan, Ann Arbor, Michigan, USA
| | - Gary B Huffnagle
- Immunology Graduate Program, University of Michigan, Ann Arbor, Michigan, USA.,Molecular, Cellular & Developmental Biology Graduate Program, University of Michigan, Ann Arbor, Michigan, USA.,Mary H. Weiser Food Allergy Center, University of Michigan, Ann Arbor, Michigan, USA.,Department of Molecular, Cellular & Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
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45
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Mishima Y, Ishihara S. Molecular Mechanisms of Microbiota-Mediated Pathology in Irritable Bowel Syndrome. Int J Mol Sci 2020; 21:ijms21228664. [PMID: 33212919 PMCID: PMC7698457 DOI: 10.3390/ijms21228664] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 02/07/2023] Open
Abstract
Irritable bowel syndrome (IBS) is one of the most prevalent functional gastrointestinal disorders, and accumulating evidence gained in both preclinical and clinical studies indicate the involvement of enteric microbiota in its pathogenesis. Gut resident microbiota appear to influence brain activity through the enteric nervous system, while their composition and function are affected by the central nervous system. Based on these results, the term “brain–gut–microbiome axis” has been proposed and enteric microbiota have become a potential therapeutic target in IBS cases. However, details regarding the microbe-related pathophysiology of IBS remain elusive. This review summarizes the existing knowledge of molecular mechanisms in the pathogenesis of IBS as well as recent progress related to microbiome-derived neurotransmitters, compounds, metabolites, neuroendocrine factors, and enzymes.
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46
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Manca ML, Solini A, Haukka JK, Sandholm N, Forsblom C, Groop PH, Ferrannini E. Differential metabolomic signatures of declining renal function in Types 1 and 2 diabetes. Nephrol Dial Transplant 2020; 36:1859-1866. [PMID: 32995893 DOI: 10.1093/ndt/gfaa175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Chronic kidney disease (CKD) shows different clinical features in Types1 (T1D) and 2 diabetes (T2D). Metabolomics have recently provided useful contribution to the identification of biomarkers of CKD progression in either form of the disease. However, no studies have so far compared plasma metabolomics between T1D and T2D in order to identify differential signatures of progression of estimated glomerular filtration rate (eGFR) decline. METHODS We used two large cohorts of T1D (from Finland) and T2D (from Italy) patients followed up to 7 and 3 years, respectively. In both groups, progression was defined as the top quartile of yearly decline in eGFR. Pooled data from the two groups were analysed by univariate and bivariate random forest (RF), and confirmed by bivariate partial least squares (PLS) analysis, the response variables being type of diabetes and eGFR progression. RESULTS In progressors, yearly eGFR loss was significantly larger in T2D [-5.3 (3.0), median (interquartile range)mL/min/1.73 m2/year] than T1D [-3.7 (3.1) mL/min/1.73 m2/year ; P = 0.018]. Out of several hundreds, bivariate RF extracted 22 metabolites associated with diabetes type (all higher in T1D than T2D except for 5-methylthioadenosine, pyruvate and β-hydroxypyruvate) and 13 molecules associated with eGFR progression (all higher in progressors than non-progressors except for sphyngomyelin). Three of the selected metabolites (histidylphenylalanine, leucylphenylalanine, tryptophylasparagine) showed a significant interaction between disease type and progression. Only eight metabolites were common to both bivariate RF and PLS. CONCLUSIONS Identification of metabolomic signatures of CKD progression is partially dependent on the statistical model. Dual analysis identified molecules specifically associated with progressive renal impairment in both T1D and T2D.
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Affiliation(s)
- Maria Laura Manca
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Anna Solini
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Jani K Haukka
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Faculty of Medicine, Research Program for Clinical and Molecular Metabolism, University of Helsinki, Helsinki, Finland
| | - Niina Sandholm
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Faculty of Medicine, Research Program for Clinical and Molecular Metabolism, University of Helsinki, Helsinki, Finland
| | - Carol Forsblom
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Faculty of Medicine, Research Program for Clinical and Molecular Metabolism, University of Helsinki, Helsinki, Finland
| | - Per-Henrik Groop
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Faculty of Medicine, Research Program for Clinical and Molecular Metabolism, University of Helsinki, Helsinki, Finland.,Department of Diabetes, Central Clinical School, Monash University, Melbourne, Victoria, Australia
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47
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Gut microbial metabolites as multi-kingdom intermediates. Nat Rev Microbiol 2020; 19:77-94. [PMID: 32968241 DOI: 10.1038/s41579-020-0438-4] [Citation(s) in RCA: 552] [Impact Index Per Article: 138.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/12/2020] [Indexed: 02/07/2023]
Abstract
The gut microbiota contributes to host physiology through the production of a myriad of metabolites. These metabolites exert their effects within the host as signalling molecules and substrates for metabolic reactions. Although the study of host-microbiota interactions remains challenging due to the high degree of crosstalk both within and between kingdoms, metabolite-focused research has identified multiple actionable microbial targets that are relevant for host health. Metabolites, as the functional output of combined host and microorganism interactions, provide a snapshot in time of an extraordinarily complex multi-organism system. Although substantial work remains towards understanding host-microbiota interactions and the underlying mechanisms, we review the current state of knowledge for each of the major classes of microbial metabolites with emphasis on clinical and translational research implications. We provide an overview of methodologies available for measurement of microbial metabolites, and in addition to discussion of key challenges, we provide a potential framework for integration of discovery-based metabolite studies with mechanistic work. Finally, we highlight examples in the literature where this approach has led to substantial progress in understanding host-microbiota interactions.
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Gallardo P, Izquierdo M, Vidal RM, Soto F, Ossa JC, Farfan MJ. Gut Microbiota-Metabolome Changes in Children With Diarrhea by Diarrheagenic E. coli. Front Cell Infect Microbiol 2020; 10:485. [PMID: 33072619 PMCID: PMC7531578 DOI: 10.3389/fcimb.2020.00485] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 08/05/2020] [Indexed: 12/13/2022] Open
Abstract
Background: Diarrheagenic Escherichia coli (DEC) strains are a main cause of diarrhea worldwide in children under 5 years old. DEC virulence is strongly regulated by environmental conditions and metabolites produced by the gut microbiota in the intestinal tract. In this study, we evaluated changes in gut microbiota-metabolome in children with or without diarrhea produced by DEC pathotypes. Goal: To determine gut microbiota composition and metabolome in stool samples obtained from healthy children and children with diarrhea positive for DEC pathotypes. Methods: We analyzed a total of 16 age-paired stool samples: 8 diarrheal samples positive for one DEC pathotype and 8 stool samples from healthy children. To identify the microbiota composition, we sequenced the V3-V4 region of the 16S rRNA and determined operational phylogenetic units (OPU). OPU were then used to predict metabolic pathways using the PICRUSt2 software. The presence of metabolites in stool samples was determined by LC-MS. A correlation analysis was performed with the main genera from each group and main metabolites. Bacteria associated with variance of main metabolites were identified using the MIMOSA2 software. Results: DEC and healthy groups showed a statistically different microbiota composition. A decrease in Firmicutes together with an increase in Bacteroidetes and Proteobacteria was found in the DEC group compared to the healthy group. Metabolic pathway predictions based on microbiota diversity showed that pathways involved in histidine and L-ornithine metabolism were significantly different between groups. A total of 88 metabolites detected by LC-MS were included in the metabolome analysis. We found higher levels of histamine and lower levels of ornithine in DEC samples than in the healthy group. Histamine and L-ornithine were associated with a specific microbiota species and the corresponding metabolic pathways. Conclusion: Stool samples from healthy children and children positive for DEC displayed a differential metabolome and microbiota composition. A strong correlation between a gut microbiota species and certain metabolites, such as histamine and L-ornithine, was found in the DEC group. This information might be useful to identify mechanisms and signaling molecules involved in the crosstalk between microbiota and DEC pathotypes.
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Affiliation(s)
- Pablo Gallardo
- Departamento de Pediatría y Cirugía Infantil, Facultad de Medicina, Hospital Dr. Luis Calvo Mackenna, Universidad de Chile, Santiago, Chile
| | - Mariana Izquierdo
- Departamento de Pediatría y Cirugía Infantil, Facultad de Medicina, Hospital Dr. Luis Calvo Mackenna, Universidad de Chile, Santiago, Chile
| | - Roberto M Vidal
- Programa de Microbiología y Micología, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile
| | - Francisco Soto
- Departamento de Pediatría y Cirugía Infantil, Facultad de Medicina, Hospital Dr. Luis Calvo Mackenna, Universidad de Chile, Santiago, Chile
| | - Juan C Ossa
- Departamento de Pediatría y Cirugía Infantil, Facultad de Medicina, Hospital Dr. Luis Calvo Mackenna, Universidad de Chile, Santiago, Chile
| | - Mauricio J Farfan
- Departamento de Pediatría y Cirugía Infantil, Facultad de Medicina, Hospital Dr. Luis Calvo Mackenna, Universidad de Chile, Santiago, Chile
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Sun H, Liu S, Mao J, Yu Z, Lin Z, Mao J. New insights into the impacts of huangjiu compontents on intoxication. Food Chem 2020; 317:126420. [PMID: 32101783 DOI: 10.1016/j.foodchem.2020.126420] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 01/01/2020] [Accepted: 02/14/2020] [Indexed: 11/30/2022]
Abstract
Although huangjiu is a popular alcoholic beverage in China, the occurrence of quick-intoxication suppresses huangjiu consumption and impedes development of the huangjiu industry. In this study, the Cryprinus carpio intoxication model was used to compare the differences in intoxication effect of alcoholic beverages and to assess the impacts of huangjiu components on intoxication for the first time. Exposure to huangjiu led to the most rapid physical imbalance of C. carpio, followed by red wine and Western liquor. Higher alcohols, biogenic amines and aldehydes could cause physical imbalance of fish by themselves, and synergistic effects were observed when combined with ethanol. 2-Phenylethanoland and isopentanol had the greatest positive effect on huangjiu intoxication, followed by histamine and phenethylamine. No synergistic effect was observed between individual aldehydes and ethanol. Identification of these impactful huangjiu components provides a new perspective on the establishment of more rigorous control on the quality and flavor of huangjiu.
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Affiliation(s)
- Hailong Sun
- National Engineering Laboratory for Cereal Fermentation Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China; National Engineering Research Center of Chinese Rice Wine, Zhejiang Guyuelongshan Shaoxing Wine CO., LTD, Shaoxing, Zhejiang, China; Jiangsu Industrial Technology Research Institute (Rugao Food Biotechnology Research Institute Co. Ltd), Rugao, Jiangsu, China
| | - Shuangping Liu
- National Engineering Laboratory for Cereal Fermentation Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, China; National Engineering Research Center of Chinese Rice Wine, Zhejiang Guyuelongshan Shaoxing Wine CO., LTD, Shaoxing, Zhejiang, China; Jiangsu Industrial Technology Research Institute (Rugao Food Biotechnology Research Institute Co. Ltd), Rugao, Jiangsu, China.
| | - Jieqi Mao
- College of Agriculture and Environmental Sciences, University of California, Davis, USA
| | - Ziwei Yu
- National Engineering Laboratory for Cereal Fermentation Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Zhijie Lin
- National Engineering Laboratory for Cereal Fermentation Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Jian Mao
- National Engineering Laboratory for Cereal Fermentation Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, China; National Engineering Research Center of Chinese Rice Wine, Zhejiang Guyuelongshan Shaoxing Wine CO., LTD, Shaoxing, Zhejiang, China.
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50
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He J, Xu S, Zhang B, Xiao C, Chen Z, Si F, Fu J, Lin X, Zheng G, Yu G, Chen J. Gut microbiota and metabolite alterations associated with reduced bone mineral density or bone metabolic indexes in postmenopausal osteoporosis. Aging (Albany NY) 2020; 12:8583-8604. [PMID: 32392181 PMCID: PMC7244073 DOI: 10.18632/aging.103168] [Citation(s) in RCA: 116] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 03/31/2020] [Indexed: 04/16/2023]
Abstract
Reduced bone mineral density (BMD) is associated with an altered microbiota in senile osteoporosis. However, the relationship among gut microbiota, BMD and bone metabolic indexes remains unknown in postmenopausal osteoporosis. In this study, fecal microbiota profiles for 106 postmenopausal individuals with osteopenia (n=33) or osteoporosis (n=42) or with normal BMD (n=31) were determined. An integrated 16S rRNA gene sequencing and LC-MS-based metabolomics approach was applied to explore the association of estrogen-reduced osteoporosis with the gut microbiota and fecal metabolic phenotype. Adjustments were made using several statistical models for potential confounding variables identified from the literature. The results demonstrated decreased bacterial richness and diversity in postmenopausal osteoporosis. Additionally, showed significant differences in abundance levels among phyla and genera in the gut microbial community were found. Moreover, postmenopausal osteopenia-enriched N-acetylmannosamine correlated negatively with BMD, and distinguishing metabolites were closely associated with gut bacterial variation. Both serum procollagen type I N propeptide (P1NP) and C-terminal telopeptide of type I collagen (CTX-1) correlated positively with osteopenia-enriched Allisonella, Klebsiella and Megasphaera. However, we did not find a significant correlation between bacterial diversity and estrogen. These observations will lead to a better understanding of the relationship between bone homeostasis and the microbiota in postmenopausal osteoporosis.
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Affiliation(s)
- Jianquan He
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
- Department of Rehabilitation, Zhongshan Hospital Xiamen University, Xiamen 361004, China
| | - Shuangbin Xu
- Department of Bioinformatics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Bangzhou Zhang
- Institute for Microbial Ecology, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Chuanxing Xiao
- Institute for Microbial Ecology, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Zhangran Chen
- Institute for Microbial Ecology, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Fuyou Si
- Institute for Microbial Ecology, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Jifan Fu
- Department of Rehabilitation, Xinyu People's Hospital, Xinyu 338000, China
| | - Xiaomei Lin
- Department of Rehabilitation, Zhongshan Hospital Xiamen University, Xiamen 361004, China
| | - Guohua Zheng
- College of Nursing and Health Management, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Guangchuang Yu
- Department of Bioinformatics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jian Chen
- Department of Rehabilitation, Zhongshan Hospital Xiamen University, Xiamen 361004, China
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