1
|
Pandey R, Tiziani S. Advances in Chiral Metabolomic Profiling and Biomarker Discovery. Methods Mol Biol 2025; 2855:85-101. [PMID: 39354302 DOI: 10.1007/978-1-0716-4116-3_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2024]
Abstract
Chiral metabolomics entails the enantioselective measurement of the metabolome present in a biological system. Over recent years, it has garnered significant interest for its potential in discovering disease biomarkers and aiding clinical diagnostics. D-Amino acids and D-hydroxy acids, traditionally overlooked as unnatural, are now emerging as novel signaling molecules and potential biomarkers for a range of metabolic disorders, brain diseases, kidney disease, diabetes, and cancer. Despite their significance, simultaneous measurements of multiple classes of chiral metabolites in a biological system remain challenging. Hence, limited information is available regarding the metabolic pathways responsible for synthesizing D-amino/hydroxy acid and their associated pathophysiological mechanisms in various diseases. Capitalizing on recent advancements in sensitive analytical techniques, researchers have developed various targeted chiral metabolomic methods for the analysis of chiral biomarkers. Here, we highlight the pivotal role of chiral metabolic profiling studies in disease diagnosis, prognosis, and therapeutic interventions. Furthermore, we describe cutting-edge chromatographic and mass spectrometry methods that enable enantioselective analysis of chiral metabolites. These advanced techniques are instrumental in unraveling the complexities of disease biomarkers, contributing to the ongoing efforts in disease biomarker discovery.
Collapse
Affiliation(s)
- Renu Pandey
- Department of Nutritional Sciences, College of Natural Sciences, The University of Texas at Austin, Austin, TX, USA
- Dell Pediatric Research Institute, Dell Medical School, The University of Texas at Austin, Austin, TX, USA
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Stefano Tiziani
- Department of Nutritional Sciences, College of Natural Sciences, The University of Texas at Austin, Austin, TX, USA.
- Dell Pediatric Research Institute, Dell Medical School, The University of Texas at Austin, Austin, TX, USA.
- Department of Pediatrics, Dell Medical School, The University of Texas at Austin, Austin, TX, USA.
- Department of Oncology, Dell Medical School; LIVESTRONG Cancer Institutes, The University of Texas at Austin, Austin, TX, USA.
| |
Collapse
|
2
|
Drozdova P, Gurkov A, Saranchina A, Vlasevskaya A, Zolotovskaya E, Indosova E, Timofeyev M, Borvinskaya E. Transcriptional response of Saccharomyces cerevisiae to lactic acid enantiomers. Appl Microbiol Biotechnol 2024; 108:121. [PMID: 38229303 DOI: 10.1007/s00253-023-12863-z] [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: 06/07/2023] [Revised: 10/16/2023] [Accepted: 10/24/2023] [Indexed: 01/18/2024]
Abstract
The model yeast, Saccharomyces cerevisiae, is a popular object for both fundamental and applied research, including the development of biosensors and industrial production of pharmaceutical compounds. However, despite multiple studies exploring S. cerevisiae transcriptional response to various substances, this response is unknown for some substances produced in yeast, such as D-lactic acid (DLA). Here, we explore the transcriptional response of the BY4742 strain to a wide range of DLA concentrations (from 0.05 to 45 mM), and compare it to the response to 45 mM L-lactic acid (LLA). We recorded a response to 5 and 45 mM DLA (125 and 113 differentially expressed genes (DEGs), respectively; > 50% shared) and a less pronounced response to 45 mM LLA (63 DEGs; > 30% shared with at least one DLA treatment). Our data did not reveal natural yeast promoters quantitatively sensing DLA but provide the first description of the transcriptome-wide response to DLA and enrich our understanding of the LLA response. Some DLA-activated genes were indeed related to lactate metabolism, as well as iron uptake and cell wall structure. Additional analyses showed that at least some of these genes were activated only by acidic form of DLA but not its salt, revealing the role of pH. The list of LLA-responsive genes was similar to those published previously and also included iron uptake and cell wall genes, as well as genes responding to other weak acids. These data might be instrumental for optimization of lactate production in yeast and yeast co-cultivation with lactic acid bacteria. KEY POINTS: • We present the first dataset on yeast transcriptional response to DLA. • Differential gene expression was correlated with yeast growth inhibition. • The transcriptome response to DLA was richer in comparison to LLA.
Collapse
Affiliation(s)
- Polina Drozdova
- Irkutsk State University, Karl-Marx Str. 1, Irkutsk, 664025, Russian Federation.
- Baikal Research Centre, Rabochaya Str. 5V, Irkutsk, 664011, Russian Federation.
| | - Anton Gurkov
- Irkutsk State University, Karl-Marx Str. 1, Irkutsk, 664025, Russian Federation
- Baikal Research Centre, Rabochaya Str. 5V, Irkutsk, 664011, Russian Federation
| | | | | | - Elena Zolotovskaya
- Irkutsk State University, Karl-Marx Str. 1, Irkutsk, 664025, Russian Federation
| | - Elizaveta Indosova
- Irkutsk State University, Karl-Marx Str. 1, Irkutsk, 664025, Russian Federation
| | - Maxim Timofeyev
- Irkutsk State University, Karl-Marx Str. 1, Irkutsk, 664025, Russian Federation
| | | |
Collapse
|
3
|
Karbysheva S, Morovic P, Bellova P, Berger MS, Stiehler M, Meller S, Kirschbaum S, Lindenlaub P, Zgraggen A, Oberle M, Fuchs M, Perka C, Trampuz A, Conen A. Synovial fluid D-lactate - a pathogen-specific biomarker for septic arthritis: a prospective multicenter study. Clin Chem Lab Med 2024:cclm-2024-0556. [PMID: 39321552 DOI: 10.1515/cclm-2024-0556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Accepted: 08/15/2024] [Indexed: 09/27/2024]
Abstract
OBJECTIVES The performance of synovial fluid biomarker D-lactate to diagnose septic arthritis (SA) and differentiate it from crystal-induced arthritis (CA), other non-infectious rheumatic joint diseases (RD) and osteoarthrosis (OA) was evaluated. METHODS Consecutive adult patients undergoing synovial fluid aspiration due to joint pain were prospectively included in different German and Swiss centers. Synovial fluid was collected for culture, leukocyte count and differentiation, detection of crystals, and D-lactate concentration. Youden's J statistic was used to determine optimal D-lactate cut-off value on the receiver operating characteristic (ROC) curve by maximizing sensitivity and specificity. RESULTS In total 231 patients were included. Thirty-nine patients had SA and 192 aseptic arthritis (56 patients with OA, 68 with CA, and 68 with RD). The median concentration of synovial fluid D-lactate was significantly higher in patients with SA than in those with OA, CA, and RD (p<0.0001, p<0.0001 and p<0.0001, respectively). The optimal cut-off of synovial fluid D-lactate to diagnose SA was 0.033 mmol/L with a sensitivity of 92.3 % and specificity of 85.4 % independent of previous antimicrobial treatment. Sensitivity and specificity of synovial fluid leukocyte count at a cut-off of 20,000 cells/µL was 81.1 % and 80.8 %, respectively. CONCLUSIONS Synovial fluid D-lactate showed a high performance for diagnosing SA which was superior to synovial fluid leukocyte count. Given its high sensitivity and specificity, it serves as both an effective screening tool for SA and a differentiator between SA and RD, especially CA.
Collapse
Affiliation(s)
- Svetlana Karbysheva
- Charité - Universitätsmedizin Berlin, Berlin, Germany
- Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health, Center for Musculoskeletal Surgery (CMSC), Berlin, Germany
| | - Paula Morovic
- Charité - Universitätsmedizin Berlin, Berlin, Germany
- Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health, Center for Musculoskeletal Surgery (CMSC), Berlin, Germany
| | - Petri Bellova
- University Center of Orthopedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Marvin Sven Berger
- University Center of Orthopedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Maik Stiehler
- University Center of Orthopedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Dresden, Germany
| | - Sebastian Meller
- Charité - Universitätsmedizin Berlin, Berlin, Germany
- Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health, Center for Musculoskeletal Surgery (CMSC), Berlin, Germany
| | - Stephanie Kirschbaum
- Charité - Universitätsmedizin Berlin, Berlin, Germany
- Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health, Center for Musculoskeletal Surgery (CMSC), Berlin, Germany
| | - Philippe Lindenlaub
- Department for Orthopedic and Trauma Surgery, Cantonal Hospital Aarau, Aarau, Switzerland
| | - Armin Zgraggen
- Department for Rheumatology and Immunology, Cantonal Hospital Aarau, Aarau, Switzerland
| | - Michael Oberle
- Institute of Laboratory Medicine, Cantonal Hospital Aarau, Aarau, Switzerland
| | - Michael Fuchs
- RKU University Department of Orthopaedics, University of Ulm, Ulm, Germany
| | - Carsten Perka
- Charité - Universitätsmedizin Berlin, Berlin, Germany
- Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health, Center for Musculoskeletal Surgery (CMSC), Berlin, Germany
| | - Andrej Trampuz
- Charité - Universitätsmedizin Berlin, Berlin, Germany
- Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health, Center for Musculoskeletal Surgery (CMSC), Berlin, Germany
| | - Anna Conen
- Department for Infectious Diseases and Infection Prevention, Cantonal Hospital Aarau, Aarau, Switzerland
| |
Collapse
|
4
|
Jung Y, Ku JY, Kim Y, Kim W, So H, Piao L, Yoon JS, Park J. Identification of hemolytic anemia in Korean indigenous cattle with a criteria value of reticulocyte count, indirect bilirubin, and L-lactate concentration. Front Vet Sci 2024; 11:1375518. [PMID: 39234172 PMCID: PMC11371756 DOI: 10.3389/fvets.2024.1375518] [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: 01/24/2024] [Accepted: 08/13/2024] [Indexed: 09/06/2024] Open
Abstract
Bovine hemolytic anemia has a negative impact on animal welfare and productivity due to its associated clinical symptoms. Hemolysis is generally known to cause reticulocytosis, increased indirect bilirubin, decreased concentration of haptoglobin, and increased lactate dehydrogenase. Additionally, tissue hypoperfusion due to concomitant anemia increases blood lactate concentration. However, few studies have reported the correlation between these indicators and hemolytic anemia in cattle. We expected that alterations in hematological and biochemical parameters could identify cattle with hemolytic anemia. Therefore, in addition to reporting differences in indicators according to hemolytic anemia, this study aimed to derive indicators and set criteria for identification of bovine hemolytic anemia. In cattle with hemolytic anemia, reticulocytosis, increased indirect bilirubin, and increased L-lactate were observed, and the correlation of these indicators with hematocrit (HCT) was confirmed. And since HCT alone has limitations in identifying hemolytic anemia, we suggest additional criteria to identify hemolytic anemia in cattle.
Collapse
Affiliation(s)
- Youngwoo Jung
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Ji-Yeong Ku
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Youngjun Kim
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
- Hanwoo (Korean Indigenous Cattle) Genetic Improvement Center, National Agricultural Cooperative Federation, Seosan, Republic of Korea
| | - WooChan Kim
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Hyungjae So
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Lianfu Piao
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Ji-Seon Yoon
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Jinho Park
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| |
Collapse
|
5
|
Jung Y, Ku JY, Kim B, Kim Y, Park KM, Baek J, Yu D, Park J. Determining lactate concentrations in Korean indigenous calves and evaluating its role as a predictor for acidemia in calf diarrhea. BMC Vet Res 2024; 20:373. [PMID: 39164760 PMCID: PMC11334453 DOI: 10.1186/s12917-024-04235-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 08/14/2024] [Indexed: 08/22/2024] Open
Abstract
BACKGROUND Calf diarrhea leads to high mortality rates and decreases in growth and productivity, causing negative effects on the livestock industry. Lactate is closely associated with metabolic acidosis in diarrheic calves. However, there have been no reports on lactate concentrations in Korean indigenous (Hanwoo) calves, especially those with diarrhea. This study aimed to determine the reference range of L-lactate and D-lactate concentrations in Hanwoo calves and to better understand the utility of lactate as predictive factors for acidemia in diarrheic calves. RESULTS L-lactate and D-lactate concentrations were measured in healthy (n = 44) and diarrheic (n = 93) calves, and blood gas analysis was performed on diarrheic calves. The reference range in healthy calves was 0.2-2.25 mmol/L for L-lactate and 0.42-1.38 mmol/L for D-lactate. Diarrheic calves had higher concentrations of L-lactate and D-lactate than healthy calves. In diarrheic calves, L-lactate and D-lactate each had weak negative correlation with pH (r = - 0.31 and r = - 0.35). In diarrheic calves with hyper-L-lactatemia, the combined concentrations of L-lactate and D-lactate had moderate correlation with pH (r = - 0.51) and anion gap (r = 0.55). Receiver operating characteristic analysis showed D-lactate had fair predictive performance (AUC = 0.74) for severe acidemia, with an optimal cut-off value of > 1.43 mmol/L. The combined concentrations of L-lactate and D-lactate showed fair predictive performance for predicting acidemia (AUC = 0.74) and severe acidemia (AUC = 0.72), with cut-off values of > 6.05 mmol/L and > 5.95 mmol/L. CONCLUSIONS The determined reference ranges for L-lactate and D-lactate in Hanwoo calves enable the identification of hyper-L-lactatemia and hyper-D-lactatemia. Diarrheic calves exhibited increased lactate concentrations correlated with acid-base parameters. While the concentrations of L-lactate and D-lactate have limitations as single diagnostic biomarkers for predicting acidemia or severe acidemia, their measurement remains important, and L-lactate has the advantage of being measurable at the point-of-care. Assessing lactate concentrations should be considered by clinicians, especially when used alongside other clinical indicators and diagnostic tests. This approach can improve calf diarrhea management, contributing positively to animal welfare and providing economic benefits to farms.
Collapse
Affiliation(s)
- Youngwoo Jung
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, 79 Gobong-ro, Iksan, 54596, Republic of Korea
| | - Ji-Yeong Ku
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, 79 Gobong-ro, Iksan, 54596, Republic of Korea
| | - Byoungsoo Kim
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, 79 Gobong-ro, Iksan, 54596, Republic of Korea
| | - Youngjun Kim
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, 79 Gobong-ro, Iksan, 54596, Republic of Korea
- Hanwoo (Korean Indigenous Cattle) Genetic Improvement Center, National Agricultural Cooperative Federation, Seosan, Republic of Korea
| | - Kwang-Man Park
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, 79 Gobong-ro, Iksan, 54596, Republic of Korea
| | - Jonghun Baek
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, 79 Gobong-ro, Iksan, 54596, Republic of Korea
| | - DoHyeon Yu
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea.
| | - Jinho Park
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, 79 Gobong-ro, Iksan, 54596, Republic of Korea.
| |
Collapse
|
6
|
Morovic P, Gonzalez Moreno M, Trampuz A, Karbysheva S. In vitro evaluation of microbial D- and L-lactate production as biomarkers of infection. Front Microbiol 2024; 15:1406350. [PMID: 39176282 PMCID: PMC11340499 DOI: 10.3389/fmicb.2024.1406350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 07/29/2024] [Indexed: 08/24/2024] Open
Abstract
Mammalian cells produce and metabolize almost exclusively L-lactate, bacterial species have the capacity to produce both D-lactate and L-lactate. The aim of this study was to evaluate the intrinsic production of D- and L-lactate in the most common pathogenic microorganisms causing septic arthritis (SA) and periprosthetic joint infection (PJI) as a potential biomarker for the diagnosis of infection. Following microorganisms were grown according to ATCC culture guides and tested for production of D- and L-lactate: Staphylococcus aureus (ATCC 43300), Staphylococcus epidermidis (ATCC 35984), Enterococcus faecalis (ATCC 19433), Streptococcus pyogenes (ATCC 19615), Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27853), Cutibacterium acnes (ATCC 11827), and Candida albicans (ATCC 90028). Pathogens were inoculated in 8 ml of appropriate liquid media and incubated as planktonic or biofilm form in either aerobic, anaerobic or CO2 atmosphere up to 312 h. D- and L-lactate measurements were performed at different time points: 0, 6, 9, 12 and 24 h, then once per day for slow-growing pathogens. Samples were serially diluted and plated for colony counting. Liquid culture media without microorganisms served as a negative control. Production of D-lactate was observed in all tested microorganisms, whereas no L-lactate was detected in E. coli, P. aeruginosa, and C. albicans. Maximal concentration of D-lactate was produced by S. aureus (10.99 mmol/L), followed by E. coli (1.22 mmol/L), and S. epidermidis (0.48 mmol/L). Maximal L-lactate concentration was observed in S. pyogenes (10.12 mmol/L), followed by S. aureus (9.71 mmol/L), E. faecalis (2.64 mmol/L), and S. epidermidis (2.50 mmol/L). S. epidermidis bacterial biofilm produced significantly higher amount of D- and L-lactate compared to planktonic form (p = 0.015 and p = 0.002, respectively). Our study has demonstrated that the most common pathogenic microorganisms causing SA and PJI have the capability to generate measurable amounts of D-lactate in both planktonic and biofilm form, highlighting the practical value of this biomarker as an indicator for bacterial and fungal infections. In contrast to D-lactate, the absence of L-lactate production in certain tested bacteria, as well as in fungi, suggests that L-lactate is not eligible as a biomarker for diagnosing microbial infections.
Collapse
Affiliation(s)
| | | | | | - Svetlana Karbysheva
- Center for Musculoskeletal Surgery (CMSC), Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| |
Collapse
|
7
|
Bilal Z, Akhmetsadykova S, Baubekova A, Tormo H, Faye B, Konuspayeva G. The Main Features and Microbiota Diversity of Fermented Camel Milk. Foods 2024; 13:1985. [PMID: 38998490 PMCID: PMC11240983 DOI: 10.3390/foods13131985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/04/2024] [Accepted: 06/07/2024] [Indexed: 07/14/2024] Open
Abstract
Fermented camel milk, named shubat in Central Asia, is historically and culturally important because it is mainly consumed by Kazakh people who live not only in Kazakhstan but also in close neighboring countries. However, despite its cultural and dietetic significance for this local population, research on its composition and processing technology and the richness of its microflora is relatively scarce. The present review of this product, which is an important beverage in the Kazakh culture, provides up-to-date information regarding its main components and their variability according to different factors, surveys recent changes in the processing technologies for making it using modern techniques, and explores the biodiversity of its microflora. It was reported that the protein, vitamin C, and calcium contents in shubat vary between 1.19 and 5.63%, 28 and 417 mg L-1, and 1.03 and 1.88 g L-1. The lactose content totally disappears. Shubat contains a complex microbial consortium that contributes to its strong reputation for health benefits, but a scientific demonstration of these claims has only been partially achieved.
Collapse
Affiliation(s)
- Zauresh Bilal
- Biotechnology Department, Al-Farabi Kazakh National University, 71 Al-Farabi Avenue, Almaty 050040, Kazakhstan; (Z.B.); (A.B.)
- LLP “Scientific and Production Enterprise Antigen”, 4, Azerbayeva Str., Almaty 040905, Kazakhstan;
| | - Shynar Akhmetsadykova
- LLP “Scientific and Production Enterprise Antigen”, 4, Azerbayeva Str., Almaty 040905, Kazakhstan;
- LLP “Kazakh Research Institute for Livestock and Fodder Production”, Horse and Camel Breeding Department, 51, Zhandosov Str., Almaty 50035, Kazakhstan
| | - Almagul Baubekova
- Biotechnology Department, Al-Farabi Kazakh National University, 71 Al-Farabi Avenue, Almaty 050040, Kazakhstan; (Z.B.); (A.B.)
| | - Helene Tormo
- Département Sciences de l’Agroalimentaire et de la Nutrition, Ecole D’ingénieurs de Purpan, INPT, 75, voie du TOEC, BP 57611, CEDEX 3, 31076 Toulouse, France;
| | - Bernard Faye
- Center of International Cooperation on Agriculture Research for Development–CIRAD, UMR SELMET, Campus International de Baillarguet, CEDEX 5, 34398 Montpellier, France;
| | - Gaukhar Konuspayeva
- Biotechnology Department, Al-Farabi Kazakh National University, 71 Al-Farabi Avenue, Almaty 050040, Kazakhstan; (Z.B.); (A.B.)
- LLP “Scientific and Production Enterprise Antigen”, 4, Azerbayeva Str., Almaty 040905, Kazakhstan;
| |
Collapse
|
8
|
Hof S, Untiedt H, Hübner A, Marcus C, Kuebart A, Herminghaus A, Vollmer C, Bauer I, Picker O, Truse R. Effects of remote ischemic preconditioning on early markers of intestinal injury in experimental hemorrhage in rats. Sci Rep 2024; 14:12960. [PMID: 38839819 PMCID: PMC11153647 DOI: 10.1038/s41598-024-63293-4] [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: 10/18/2023] [Accepted: 05/27/2024] [Indexed: 06/07/2024] Open
Abstract
The maintenance of intestinal integrity and barrier function under conditions of restricted oxygen availability is crucial to avoid bacterial translocation and local inflammation. Both lead to secondary diseases after hemorrhagic shock and might increase morbidity and mortality after surviving the initial event. Monitoring of the intestinal integrity especially in the early course of critical illness remains challenging. Since microcirculation and mitochondrial respiration are main components of the terminal stretch of tissue oxygenation, the evaluation of microcirculatory and mitochondrial variables could identify tissues at risk during hypoxic challenges, indicate an increase of intestinal injury, and improve our understanding of regional pathophysiology during acute hemorrhage. Furthermore, improving intestinal microcirculation or mitochondrial respiration, e.g. by remote ischemic preconditioning (RIPC) that was reported to exert a sufficient tissue protection in various tissues and was linked to mediators with vasoactive properties could maintain intestinal integrity. In this study, postcapillary oxygen saturation (µHbO2), microvascular flow index (MFI) and plasmatic D-lactate concentration revealed to be early markers of intestinal injury in a rodent model of experimental hemorrhagic shock. Mitochondrial function was not impaired in this experimental model of acute hemorrhage. Remote ischemic preconditioning (RIPC) failed to improve intestinal microcirculation and intestinal damage during hemorrhagic shock.
Collapse
Affiliation(s)
- Stefan Hof
- Department of Anesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany.
| | - Hendrik Untiedt
- Department of Anesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Anne Hübner
- Department of Anesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Carsten Marcus
- Department of Anesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Anne Kuebart
- Department of Anesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Anna Herminghaus
- Department of Anesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Christian Vollmer
- Department of Anesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Inge Bauer
- Department of Anesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Olaf Picker
- Department of Anesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Richard Truse
- Department of Anesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
| |
Collapse
|
9
|
Mellouk A, Mahmood T, Jlali M, Vieco-Saiz N, Michel V, Cozannet P, Ozbek S, Mercier Y, Devillard E, Consuegra J. Potential of guar gum as a leaky gut model in broilers: Digestibility, performance, and microbiota responses. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 17:177-187. [PMID: 38779326 PMCID: PMC11109731 DOI: 10.1016/j.aninu.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 01/02/2024] [Accepted: 01/23/2024] [Indexed: 05/25/2024]
Abstract
Diet is a major modulator of animal resilience and its three pillars: host's immune response, gut microbiota, and intestinal barrier. In the present study, we endeavour to delineate a challenging condition aimed to degrade these pillars and elucidate its impact on broiler performance and nutrient digestibility. To attain this objective, we opted to use guar gum (GG) as a source of galactomannan. A series of three in vivo experiments were conducted employing conventional or semi-purified diets, supplemented with or without GG during the grower phase (14-28 d). Our findings demonstrate a substantial decline in animal performance metrics such as body weight (reduced by 29%, P < 0.001), feed intake (decreased by 12%, P < 0.001), and feed conversion ratio (up to 58% increase, P < 0.001) in the presence of GG at 2%. The supplementation of a semi-purified diet with incremental doses of GG resulted in a linear reduction (P < 0.001) in the apparent total tract digestibility of dry matter and apparent metabolisable energy. Additionally, a marked reduction in ileal endogenous losses, as well as apparent and standardised digestibility of all amino acids with varying proportions (P < 0.05), was observed. These alterations were accompanied by disrupted gut integrity assessed by fluorescein isothiocyanate-dextran (FITC-d) (P < 0.001) as well as an inflammatory status characterised by elevated levels of acute-phase proteins, namely orosomucoid and serum amyloid A in the sera (P = 0.03), and increased mRNA expression levels of IL-1, IL-6, IL-8, Inos, and K203 genes in the ileum, along with a decrease in IgA levels in the gut lumen (P < 0.05). Microbial ecology and activity were characterised by reduced diversity and richness (Shannon index, P = 0.005) in the presence of GG. Consequently, our results revealed diminished levels of short-chain fatty acids (P = 0.01) and their producer genera, such as Clostridium_XIVa and Blautia, in the gut caeca, coupled with excessive accumulation of lactate (17-fold increase, P < 0.01) in the presence of GG at 2%. In addition to providing a more comprehensive characterisation of the GG supplementation as a leaky gut model, our results substantiate a thorough understanding of the intricate adjustments and interplay between the intestinal barrier, immune response, and microbiota. Furthermore, they underscore the significance of feed components in modulating these dynamics.
Collapse
Affiliation(s)
| | | | | | - Nuria Vieco-Saiz
- Department of R&I in Monogastric Animal Nutrition, European Laboratory of Innovation Science & Expertise (ELISE), Adisseo France S.A.S., Saint Fons, France
| | - Virginie Michel
- Department of R&I in Monogastric Animal Nutrition, European Laboratory of Innovation Science & Expertise (ELISE), Adisseo France S.A.S., Saint Fons, France
| | - Pierre Cozannet
- Department of R&I in Monogastric Animal Nutrition, European Laboratory of Innovation Science & Expertise (ELISE), Adisseo France S.A.S., Saint Fons, France
| | - Sarper Ozbek
- Department of R&I in Monogastric Animal Nutrition, European Laboratory of Innovation Science & Expertise (ELISE), Adisseo France S.A.S., Saint Fons, France
| | - Yves Mercier
- Department of R&I in Monogastric Animal Nutrition, European Laboratory of Innovation Science & Expertise (ELISE), Adisseo France S.A.S., Saint Fons, France
| | - Estelle Devillard
- Department of R&I in Monogastric Animal Nutrition, European Laboratory of Innovation Science & Expertise (ELISE), Adisseo France S.A.S., Saint Fons, France
| | - Jessika Consuegra
- Department of R&I in Monogastric Animal Nutrition, European Laboratory of Innovation Science & Expertise (ELISE), Adisseo France S.A.S., Saint Fons, France
| |
Collapse
|
10
|
Cerina M, Levers M, Keller JM, Frega M. Neuroprotective role of lactate in a human in vitro model of the ischemic penumbra. Sci Rep 2024; 14:7973. [PMID: 38575687 PMCID: PMC10994928 DOI: 10.1038/s41598-024-58669-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 04/02/2024] [Indexed: 04/06/2024] Open
Abstract
In patients suffering from cerebral ischemic stroke, there is an urgent need for treatments to protect stressed yet viable brain cells. Recently, treatment strategies that induce neuronal activity have been shown to be neuroprotective. Here, we hypothesized that neuronal activation might maintain or trigger the astrocyte-to-neuron lactate shuttle (ANLS), whereby lactate is released from astrocytes to support the energy requirements of ATP-starved hypoxic neurons, and this leads to the observed neuroprotection. We tested this by using a human cell based in vitro model of the ischemic penumbra and investigating whether lactate might be neuroprotective in this setting. We found that lactate transporters are involved in the neuroprotective effect mediated by neuronal activation. Furthermore, we showed that lactate exogenously administered before hypoxia correlated with neuroprotection in our cellular model. In addition, stimulation of astrocyte with consequent endogenous production of lactate resulted in neuroprotection. To conclude, here we presented evidence that lactate transport into neurons contributes to neuroprotection during hypoxia providing a potential basis for therapeutic approaches in ischemic stroke.
Collapse
Affiliation(s)
- Marta Cerina
- Department of Clinical Neurophysiology, University of Twente, 7522 NB, Enschede, The Netherlands
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, piazza della Scienza 2, 20126, Milan, Italy
| | - Marloes Levers
- Department of Clinical Neurophysiology, University of Twente, 7522 NB, Enschede, The Netherlands
| | - Jason M Keller
- Department of Human Genetics, Radboudumc, Donders Institute for Brain, Cognition, and Behaviour, 6500 HB, Nijmegen, The Netherlands
| | - Monica Frega
- Department of Clinical Neurophysiology, University of Twente, 7522 NB, Enschede, The Netherlands.
| |
Collapse
|
11
|
Lanza A, Kimura S, Hirono I, Yoshitake K, Kinoshita S, Asakawa S. Transcriptome analysis of Edwardsiella piscicida during intracellular infection reveals excludons are involved with the activation of a mitochondrion-like energy generation program. mBio 2024; 15:e0352623. [PMID: 38349189 PMCID: PMC10936155 DOI: 10.1128/mbio.03526-23] [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: 12/28/2023] [Accepted: 01/10/2024] [Indexed: 03/14/2024] Open
Abstract
Phylogenetic evidence suggests a shared ancestry between mitochondria and modern Proteobacteria, a phylum including several genera of intracellular pathogens. Studying these diverse pathogens, particularly during intracellular infection of their hosts, can reveal characteristics potentially representative of the mitochondrial-Proteobacterial ancestor by identifying traits shared with mitochondria. While transcriptomic approaches can provide global insights into intracellular acclimatization by pathogens, they are often limited by excess host RNAs in extracts. Here, we developed a method employing magnetic nanoparticles to enrich RNA from an intracellular Gammaproteobacterium, Edwardsiella piscicida, within zebrafish, Danio rerio, fin fibroblasts, enabling comprehensive exploration of the bacterial transcriptome. Our findings revealed that the intracellular E. piscicida transcriptome reflects a mitochondrion-like energy generation program characterized by the suppression of glycolysis and sugar transport, coupled with upregulation of the tricarboxylic acid (TCA) cycle and alternative import of simple organic acids that directly flux into TCA cycle intermediates or electron transport chain donors. Additionally, genes predicted to be members of excludons, loci of gene pairs antagonistically co-regulated by overlapping antisense transcription, are significantly enriched in the set of all genes with perturbed sense and antisense transcription, suggesting a general but important involvement of excludons with intracellular acclimatization. Notably, genes involved with the activation of the mitochondrion-like energy generation program, specifically with metabolite import and glycolysis, are also members of predicted excludons. Other intracellular Proteobacterial pathogens appear to employ a similar mitochondrion-like energy generation program, suggesting a potentially conserved mechanism for optimized energy acquisition from hosts centered around the TCA cycle.IMPORTANCEPhylogenetic evidence suggests that mitochondria and Proteobacteria, a phylum encompassing various intracellular pathogens, share a common ancestral lineage. In this study, we developed a novel method employing magnetic nanoparticles to explore the transcriptome of an aquatic Gammaproteobacterium, Edwardsiella piscicida, during intracellular infection of host cells. We show that the strategy E. piscicida uses to generate energy strikingly mirrors the function of mitochondria-energy generators devoid of glycolytic processes. Notably, several implicated genes are members of excludons-gene pairs antagonistically co-regulated by overlapping antisense transcription. Other intracellular Proteobacterial pathogens appear to adopt a similar mitochondrion-like energy generation program, indicating a possibly conserved strategy for optimized energy acquisition from hosts centered around the tricarboxylic acid cycle.
Collapse
Affiliation(s)
- Andre Lanza
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Satoshi Kimura
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Ikuo Hirono
- Department of Marine Biosciences, Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Kazutoshi Yoshitake
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Shigeharu Kinoshita
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Shuichi Asakawa
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| |
Collapse
|
12
|
Hario S, Le GNT, Sugimoto H, Takahashi-Yamashiro K, Nishinami S, Toda H, Li S, Marvin JS, Kuroda S, Drobizhev M, Terai T, Nasu Y, Campbell RE. High-Performance Genetically Encoded Green Fluorescent Biosensors for Intracellular l-Lactate. ACS CENTRAL SCIENCE 2024; 10:402-416. [PMID: 38435524 PMCID: PMC10906044 DOI: 10.1021/acscentsci.3c01250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/31/2023] [Accepted: 01/04/2024] [Indexed: 03/05/2024]
Abstract
l-Lactate is a monocarboxylate produced during the process of cellular glycolysis and has long generally been considered a waste product. However, studies in recent decades have provided new perspectives on the physiological roles of l-lactate as a major energy substrate and a signaling molecule. To enable further investigations of the physiological roles of l-lactate, we have developed a series of high-performance (ΔF/F = 15 to 30 in vitro), intensiometric, genetically encoded green fluorescent protein (GFP)-based intracellular l-lactate biosensors with a range of affinities. We evaluated these biosensors in cultured cells and demonstrated their application in an ex vivo preparation of Drosophila brain tissue. Using these biosensors, we were able to detect glycolytic oscillations, which we analyzed and mathematically modeled.
Collapse
Affiliation(s)
- Saaya Hario
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Giang N. T. Le
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department
of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Hikaru Sugimoto
- Department
of Biochemistry and Molecular Biology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kei Takahashi-Yamashiro
- Department
of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department
of Chemistry, Faculty of Science, University
of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Suguru Nishinami
- International
Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Hirofumi Toda
- International
Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Selene Li
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Jonathan S. Marvin
- Howard
Hughes Medical Institute, Janelia Research Campus, Ashburn, Virginia 20147, United States
| | - Shinya Kuroda
- Department
of Biological Sciences, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mikhail Drobizhev
- Department
of Microbiology and Cell Biology, Montana
State University, Bozeman, Montana 59717, United States
| | - Takuya Terai
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yusuke Nasu
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- PRESTO,
Japan Science and Technology Agency, Chiyoda-ku, Tokyo 102-0075, Japan
| | - Robert E. Campbell
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department
of Chemistry, Faculty of Science, University
of Alberta, Edmonton, Alberta T6G 2G2, Canada
- CERVO
Brain Research Center and Department of Biochemistry, Microbiology,
and Bioinformatics, Université Laval, Québec, Québec G1 V 0A6, Canada
| |
Collapse
|
13
|
Nohesara S, Abdolmaleky HM, Thiagalingam S. Potential for New Therapeutic Approaches by Targeting Lactate and pH Mediated Epigenetic Dysregulation in Major Mental Diseases. Biomedicines 2024; 12:457. [PMID: 38398057 PMCID: PMC10887322 DOI: 10.3390/biomedicines12020457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/25/2024] Open
Abstract
Multiple lines of evidence have shown that lactate-mediated pH alterations in the brains of patients with neuropsychiatric diseases such as schizophrenia (SCZ), Alzheimer's disease (AD) and autism may be attributed to mitochondrial dysfunction and changes in energy metabolism. While neuronal activity is associated with reduction in brain pH, astrocytes are responsible for rebalancing the pH to maintain the equilibrium. As lactate level is the main determinant of brain pH, neuronal activities are impacted by pH changes due to the binding of protons (H+) to various types of proteins, altering their structure and function in the neuronal and non-neuronal cells of the brain. Lactate and pH could affect diverse types of epigenetic modifications, including histone lactylation, which is linked to histone acetylation and DNA methylation. In this review, we discuss the importance of pH homeostasis in normal brain function, the role of lactate as an essential epigenetic regulatory molecule and its contributions to brain pH abnormalities in neuropsychiatric diseases, and shed light on lactate-based and pH-modulating therapies in neuropsychiatric diseases by targeting epigenetic modifications. In conclusion, we attempt to highlight the potentials and challenges of translating lactate-pH-modulating therapies to clinics for the treatment of neuropsychiatric diseases.
Collapse
Affiliation(s)
- Shabnam Nohesara
- Department of Medicine (Biomedical Genetics), Boston University Chobanian and Avedisian School of Medicine, Boston, MA 02118, USA;
| | - Hamid Mostafavi Abdolmaleky
- Department of Medicine (Biomedical Genetics), Boston University Chobanian and Avedisian School of Medicine, Boston, MA 02118, USA;
- Nutrition/Metabolism Laboratory, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Sam Thiagalingam
- Department of Medicine (Biomedical Genetics), Boston University Chobanian and Avedisian School of Medicine, Boston, MA 02118, USA;
- Department of Pathology & Laboratory Medicine, Boston University Chobanian and Avedisian School of Medicine, Boston, MA 02118, USA
| |
Collapse
|
14
|
Akamp T, Rosendahl A, Galler KM, Wölflick M, Buchalla W, Widbiller M. An in vitro coculture approach to study the interplay between dental pulp cells and Streptococcus mutans. Int Endod J 2024; 57:164-177. [PMID: 37947494 DOI: 10.1111/iej.13995] [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: 08/07/2023] [Revised: 10/04/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023]
Abstract
AIM To develop a new coculture system that allows exposure of dental pulp cells (DPCs) to Streptococcus mutans and dentine matrix proteins (eDMP) to study cellular interactions in dentine caries. METHODOLOGY Dental pulp cells and S. mutans were cocultured with or without eDMP for 72 h. Cell proliferation and viability were assessed by cell counting and MTT assays, while bacterial growth and viability were determined by CFU and LIVE/DEAD staining. Glucose catabolism and lactate excretion were measured photometrically as metabolic indicators. To evaluate the inflammatory response, the release of cytokines and growth factors (IL-6, IL-8, TGF-β1, VEGF) was determined by ELISA. Non-parametric statistical analyses were performed to compare all groups and time points (Mann-Whitney U test or Kruskal-Wallis test; α = .05). RESULTS While eDMP and especially S. mutans reduced the number and viability of DPCs (p ≤ .0462), neither DPCs nor eDMP affected the growth and viability of S. mutans during coculture (p > .0546). The growth of S. mutans followed a common curve, but the death phase was not reached within 72 h. S. mutans consumed medium glucose in only 30 h, whereas in the absence of S. mutans, cells were able to catabolize glucose throughout 72 h, resulting in the corresponding amount of l-lactate. No change in medium pH was observed. S. mutans induced IL-6 production in DPCs (p ≤ .0011), whereas eDMP had no discernible effect (p > .7509). No significant changes in IL-8 were observed (p > .198). TGF-β1, available from eDMP supplementation, was reduced by DPCs over time. VEGF, on the other hand, was increased in all groups during coculture. CONCLUSIONS The results show that the coculture of DPCs and S. mutans is possible without functional impairment. The bacterially induced stimulation of proinflammatory and regenerative cytokines provides a basis for future investigations and the elucidation of molecular biological relationships in pulp defence against caries.
Collapse
Affiliation(s)
- Tobias Akamp
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, Regensburg, Germany
| | - Andreas Rosendahl
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, Regensburg, Germany
| | - Kerstin M Galler
- Department of Operative Dentistry and Periodontology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Melanie Wölflick
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, Regensburg, Germany
| | - Wolfgang Buchalla
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, Regensburg, Germany
| | - Matthias Widbiller
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, Regensburg, Germany
| |
Collapse
|
15
|
Morris FC, Jiang Y, Fu Y, Kostoulias X, Murray GL, Yu Y, Peleg AY. Lactate metabolism promotes in vivo fitness during Acinetobacter baumannii infection. FEMS Microbiol Lett 2024; 371:fnae032. [PMID: 38719540 PMCID: PMC11126152 DOI: 10.1093/femsle/fnae032] [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: 02/11/2024] [Revised: 04/30/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Acinetobacter baumannii is one of the most prevalent causes of nosocomial infections worldwide. However, a paucity of information exists regarding the connection between metabolic capacity and in vivo bacterial fitness. Elevated lactate is a key marker of severe sepsis. We have previously shown that the putative A. baumannii lactate permease gene, lldP, is upregulated during in vivo infection. Here, we confirm that lldP expression is upregulated in three A. baumannii strains during a mammalian systemic infection. Utilising a transposon mutant disrupted for lldP in the contemporary clinical strain AB5075-UW, and a complemented strain, we confirmed its role in the in vitro utilisation of l-(+)-lactate. Furthermore, disruption of the lactate metabolism pathway resulted in reduced bacterial fitness during an in vivo systemic murine competition assay. The disruption of lldP had no impact on the susceptibility of this strain to complement mediated killing by healthy human serum. However, growth in biologically relevant concentrations of lactate observed during severe sepsis, led to bacterial tolerance to killing by healthy human blood, a phenotype that was abolished in the lldP mutant. This study highlights the importance of the lactate metabolism pathway for survival and growth of A. baumannii during infection.
Collapse
Affiliation(s)
- Faye C Morris
- Infection Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria 3800, Australia
- Centre to Impact AMR, Monash University, Clayton, Victoria 3800, Australia
| | - Yan Jiang
- Infection Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria 3800, Australia
- Department of Infectious Diseases, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province 310016, China
| | - Ying Fu
- Infection Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria 3800, Australia
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province 310016, China
| | - Xenia Kostoulias
- Infection Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria 3800, Australia
- Centre to Impact AMR, Monash University, Clayton, Victoria 3800, Australia
- Department of Infectious Diseases, The Alfred Hospital and School of Translational Medicine, Monash University, Melbourne, Victoria 3004, Australia
| | - Gerald L Murray
- Infection Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria 3800, Australia
- Present Address; Royal Women's Hospital, Grattan Street, Parkville, Victoria 3052, Australia
| | - Yusong Yu
- Department of Infectious Diseases, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province 310016, China
| | - Anton Y Peleg
- Infection Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria 3800, Australia
- Centre to Impact AMR, Monash University, Clayton, Victoria 3800, Australia
- Department of Infectious Diseases, The Alfred Hospital and School of Translational Medicine, Monash University, Melbourne, Victoria 3004, Australia
| |
Collapse
|
16
|
Niu Y, Zhang R, Yang C, He J, Wang T. Dietary supplementation with dihydroartemisinin improves intestinal barrier function in weaned piglets with intrauterine growth retardation by modulating the gut microbiota. J Anim Sci 2024; 102:skae140. [PMID: 38813622 PMCID: PMC11222986 DOI: 10.1093/jas/skae140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 05/29/2024] [Indexed: 05/31/2024] Open
Abstract
The aim of this study was to investigate whether dietary dihydroartemisinin (DHA) supplementation could improve intestinal barrier function and microbiota composition in intrauterine growth restriction (IUGR) weaned piglets. Twelve normal birth weight (NBW) piglets and 24 IUGR piglets at 21 d of age were divided into three groups, which were fed a basal diet (NBW-CON and IUCR-CON groups) and an 80 mg/kg DHA diet (IUGR-DHA group). At 49 d of age, eight piglets of each group with similar body weights within groups were slaughtered, and serum and small intestine samples were collected. The results showed that IUGR piglets reduced growth performance, impaired the markers of intestinal permeability, induced intestinal inflammation, decreased intestinal immunity, and disturbed the intestinal microflora. Dietary DHA supplementation increased average daily gain, average daily feed intake, and body weight at 49 d of age in IUGR-weaned piglets (P < 0.05). DHA treatment decreased serum diamine oxidase activity and increased the numbers of intestinal goblet cells and intraepithelial lymphocytes, concentrations of jejunal mucin-2 and ileal trefoil factor 3, and intestinal secretory immunoglobin A and immunoglobin G (IgG) concentrations of IUGR piglets (P < 0.05). Diet supplemented with DHA also upregulated mRNA abundances of jejunal IgG, the cluster of differentiation 8 (CD8), major histocompatibility complex-I (MHC-I), and interleukin 6 (IL-6) and ileal IgG, Fc receptor for IgG (FcRn), cluster of differentiation 8 (CD4), CD8, MHC-I, IL-6 and tumor necrosis factor α (TNF-α), and enhanced mRNA abundance and protein expression of intestinal occludin and ileal claudin-1 in IUGR piglets (P < 0.05). In addition, DHA supplementation in the diet improved the microbial diversity of the small intestine of IUGR piglets and significantly increased the relative abundance of Actinobacteriota, Streptococcus, Blautia and Streptococcus in the jejunum, and Clostridium sensu_ stricto_in the ileum (P < 0.05). The intestinal microbiota was correlated with the mRNA abundance of tight junction proteins and inflammatory response-related genes. These data suggested that DHA could improve the markers of intestinal barrier function in IUGR-weaned piglets by modulating gut microbiota. DHA may be a novel nutritional candidate for preventing intestinal dysfunction in IUGR pigs.
Collapse
Affiliation(s)
- Yu Niu
- College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A and F University, Hangzhou, 311300, China
| | - Ruiqiang Zhang
- College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A and F University, Hangzhou, 311300, China
| | - Caimei Yang
- College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A and F University, Hangzhou, 311300, China
| | - Jintian He
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Tian Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| |
Collapse
|
17
|
Bardin T, Ducrot YM, Nguyen Q, Letavernier E, Zaworski J, Ea HK, Touzain F, Do MD, Colot J, Barguil Y, Biron A, Resche-Rigon M, Richette P, Collet C. Early-onset gout and rare deficient variants of the lactate dehydrogenase D gene. Rheumatology (Oxford) 2023; 62:3978-3983. [PMID: 37021930 DOI: 10.1093/rheumatology/kead118] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 12/16/2022] [Accepted: 02/03/2023] [Indexed: 04/07/2023] Open
Abstract
OBJECTIVES To investigate whether the lactate dehydrogenase D (LDHD) gene deficiency causes juvenile-onset gout. METHODS We used whole-exome sequencing for two families and a targeted gene-sequencing panel for an isolated patient. d-lactate dosages were analysed using ELISA. RESULTS We demonstrated linkage of juvenile-onset gout to homozygous carriage of three rare distinct LDHD variants in three different ethnicities. In a Melanesian family, the variant was (NM_153486.3: c.206C>T; rs1035398551) and, as compared with non-homozygotes, homozygotes had higher hyperuricaemia (P = 0.02), lower fractional clearance of urate (P = 0.002), and higher levels of d-lactate in blood (P = 0.04) and urine (P = 0.06). In a second, Vietnamese, family, very severe juvenile-onset gout was linked to homozygote carriage of an undescribed LDHD variant (NM_153486.3: c.1363dupG) leading to a frameshift followed by a stop codon, p.(AlaGly432fsTer58). Finally, a Moroccan man, with early-onset and high d-lactaturia, whose family was unavailable for testing, was homozygous for another rare LDHD variant [NM_153486.3: c.752C>T, p.(Thr251Met)]. CONCLUSION Rare, damaging LDHD variants can cause autosomal recessive early-onset gout, the diagnosis of which can be suspected by measuring high d-lactate levels in the blood and/or urine.
Collapse
Affiliation(s)
- Thomas Bardin
- INSERM UMRS1132, Université de Paris-Cité, Hôpital Lariboisière, Paris, France
- French-Vietnamese Research Centre on Gout and Chronic Diseases, Viên Gùt, Ho Chi Minh City, Vietnam
| | - Yves-Marie Ducrot
- Centre Médico-Social de Wé, DACAS, Province des îles Loyauté, Lifou, New Caledonia
| | - Quang Nguyen
- French-Vietnamese Research Centre on Gout and Chronic Diseases, Viên Gùt, Ho Chi Minh City, Vietnam
| | | | - Jeremy Zaworski
- Sorbonne University INSERM UMRS1155, Hôpital Tenon, Paris, France
| | - Hang-Korng Ea
- INSERM UMRS1132, Université de Paris-Cité, Hôpital Lariboisière, Paris, France
| | - Fréderic Touzain
- Service de Transfusion Sanguine/Centre de Don du Sang, Centre Hospitalier Territorial, Nouméa, New Caledonia
| | - Minh Duc Do
- Center for Molecular Biomedicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Julien Colot
- Laboratoire de Microbiologie, Centre Hospitalier Territorial, Nouméa, New Caledonia
| | - Yann Barguil
- Laboratoire de Microbiologie, Centre Hospitalier Territorial, Nouméa, New Caledonia
| | - Antoine Biron
- Laboratoire de Microbiologie, Centre Hospitalier Territorial, Nouméa, New Caledonia
| | - Matthieu Resche-Rigon
- Department of Biostatistics, Hôpital Saint Louis, APHP Nord and UMR U1153 ECSTRA team INSERM, Université de Paris-Cité, Paris, France
| | - Pascal Richette
- INSERM UMRS1132, Université de Paris-Cité, Hôpital Lariboisière, Paris, France
| | - Corinne Collet
- INSERM UMRS1132, Université de Paris-Cité, Hôpital Lariboisière, Paris, France
| |
Collapse
|
18
|
Jin S, Chen X, Yang J, Ding J. Lactate dehydrogenase D is a general dehydrogenase for D-2-hydroxyacids and is associated with D-lactic acidosis. Nat Commun 2023; 14:6638. [PMID: 37863926 PMCID: PMC10589216 DOI: 10.1038/s41467-023-42456-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 10/11/2023] [Indexed: 10/22/2023] Open
Abstract
Mammalian lactate dehydrogenase D (LDHD) catalyzes the oxidation of D-lactate to pyruvate. LDHD mutations identified in patients with D-lactic acidosis lead to deficient LDHD activity. Here, we perform a systematic biochemical study of mouse LDHD (mLDHD) and determine the crystal structures of mLDHD in FAD-bound form and in complexes with FAD, Mn2+ and a series of substrates or products. We demonstrate that mLDHD is an Mn2+-dependent general dehydrogenase which exhibits catalytic activity for D-lactate and other D-2-hydroxyacids containing hydrophobic moieties, but no activity for their L-isomers or D-2-hydroxyacids containing hydrophilic moieties. The substrate-binding site contains a positively charged pocket to bind the common glycolate moiety and a hydrophobic pocket with some elasticity to bind the varied hydrophobic moieties of substrates. The structural and biochemical data together reveal the molecular basis for the substrate specificity and catalytic mechanism of LDHD, and the functional roles of mutations in the pathogenesis of D-lactic acidosis.
Collapse
Affiliation(s)
- Shan Jin
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai, 200031, China
| | - Xingchen Chen
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai, 200031, China
| | - Jun Yang
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai, 200031, China
| | - Jianping Ding
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai, 200031, China.
- School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China.
| |
Collapse
|
19
|
Fan Z, Liu Z, Zhang N, Wei W, Cheng K, Sun H, Hao Q. Identification of SIRT3 as an eraser of H4K16la. iScience 2023; 26:107757. [PMID: 37720100 PMCID: PMC10504495 DOI: 10.1016/j.isci.2023.107757] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/24/2023] [Accepted: 08/24/2023] [Indexed: 09/19/2023] Open
Abstract
Lysine lactylation (Kla) is a novel histone post-translational modification discovered in late 2019. Later, HDAC1-3, were identified as the robust Kla erasers. While the Sirtuin family proteins showed weak eraser activities toward Kla, as reported. However, the catalytic mechanisms and physiological functions of HDACs and Sirtuins are not identical. In this study, we observed that SIRT3 exhibits a higher eraser activity against the H4K16la site than the other human Sirtuins. Crystal structures revealed the detailed binding mechanisms between lactyl-lysine peptides and SIRT3. Furthermore, a chemical probe, p-H4K16laAlk, was developed to capture potential Kla erasers from cell lysates. SIRT3 was captured by this probe and detected via proteomic analysis. And another chemical probe, p-H4K16la-NBD, was developed to detect the eraser-Kla delactylation processes directly via fluorescence indication. Our findings and chemical probes provide new directions for further investigating Kla and its roles in gene transcription regulation.
Collapse
Affiliation(s)
- Zhuming Fan
- Institute of High Energy Physics, CAS, Beijing 100000, China
- Spallation Neutron Source Science Center, CAS, Dongguan, Guangdong 523000, China
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong, China
| | - Zhiyang Liu
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, Hong Kong, China
| | - Nan Zhang
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong, China
| | - Wenyu Wei
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, Hong Kong, China
| | - Ke Cheng
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, Hong Kong, China
| | - Hongyan Sun
- Department of Chemistry and COSDAF (Centre of Super-Diamond and Advanced Films), City University of Hong Kong, Hong Kong, China
| | - Quan Hao
- Institute of High Energy Physics, CAS, Beijing 100000, China
- Spallation Neutron Source Science Center, CAS, Dongguan, Guangdong 523000, China
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong, China
| |
Collapse
|
20
|
Donmez-Altuntas H, Sahin Ergul S, Altin-Celik P, Bulut K, Eci Roglu H, Uzen R, Sahin GG, Ozer NT, Temel S, Arikan TB, Esmaoglu A, Yuksel RC, Sungur M, Gundogan K. Gut barrier protein levels in serial blood samples from critically ill trauma patients during and after intensive care unit stay. Eur J Trauma Emerg Surg 2023; 49:2203-2213. [PMID: 37296330 DOI: 10.1007/s00068-023-02298-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
PURPOSE In an effort to better manage critically ill patients hospitalised in the intensive care unit (ICU) after experiencing multiple traumas, the present study aimed to assess whether plasma levels of intestinal epithelial cell barrier proteins, including occludin, claudin-1, junctional adhesion molecule (JAM-1), tricellulin and zonulin, could be used as novel biomarkers. Additional potential markers such as intestinal fatty acid-binding protein (I-FABP), D-lactate, lipopolysaccharide (LPS) and citrulline were also evaluated. We also aimed to determine the possible relationships between the clinical, laboratory, and nutritional status of patients and the measured marker levels. METHODS Plasma samples from 29 patients (first, second, fifth and tenth days in the ICU and on days 7, 30 and 60 after hospital discharge) and 23 controls were subjected to commercial enzyme-linked immunosorbent assay (ELISA) testing. RESULTS On first day (admission) and on the second day, plasma I-FABP, D-lactate, citrulline, occludin, claudin-1, tricellulin and zonulin levels were high in trauma patients and positively correlated with lactate, C-reactive protein (CRP), number of days of ICU hospitalisation, Acute Physiology and Chronic Health Evaluation II (APACHE II) score and daily Sequential Organ Failure Assessment (SOFA) scores (P < 0.05-P < 0.01). CONCLUSION The results of the present study showed that occludin, claudin-1, tricellulin and zonulin proteins, as well as I-FABP, D-lactate and citrulline, may be used as promising biomarkers for the evaluation of disease severity in critically ill trauma patients, despite the complexity of the analysis of various barrier markers. However, our results should be supported by future studies.
Collapse
Affiliation(s)
| | - Serap Sahin Ergul
- Division of Intensive Care Medicine, Department of Internal Medicine, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
- 100/2000 CoHE PhD Scholarship Program, Institute of Health Sciences, 38030, Kayseri, Turkey
| | - Pinar Altin-Celik
- Department of Medical Biology, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
- 100/2000 CoHE PhD Scholarship Program, Institute of Health Sciences, 38030, Kayseri, Turkey
| | - Kadir Bulut
- Division of Intensive Care Medicine, Department of Internal Medicine, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
| | - Hamiyet Eci Roglu
- Department of Medical Biology, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
- Health Services Vocational School, Alanya Alaaddin Keykubat University, 07425, Antalya, Turkey
| | - Ramazan Uzen
- Department of Medical Biology, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
- 100/2000 CoHE PhD Scholarship Program, Institute of Health Sciences, 38030, Kayseri, Turkey
| | - Gulsah Gunes Sahin
- Division of Intensive Care Medicine, Department of Internal Medicine, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
- 100/2000 CoHE PhD Scholarship Program, Institute of Health Sciences, 38030, Kayseri, Turkey
- Department of Nutrition and Dietetics, School of Health Sciences, Cappadocia University, 50000, Nevşehir, Turkey
| | - Nurhayat Tugra Ozer
- Division of Intensive Care Medicine, Department of Internal Medicine, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
- 100/2000 CoHE PhD Scholarship Program, Institute of Health Sciences, 38030, Kayseri, Turkey
| | - Sahin Temel
- Division of Intensive Care Medicine, Department of Internal Medicine, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
| | - Turkmen Bahadir Arikan
- Department of General Surgery, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
| | - Aliye Esmaoglu
- Department of Anaesthesiology and Reanimation, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
| | - Recep Civan Yuksel
- Division of Intensive Care Medicine, Department of Internal Medicine, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
| | - Murat Sungur
- Division of Intensive Care Medicine, Department of Internal Medicine, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
| | - Kursat Gundogan
- Division of Intensive Care Medicine, Department of Internal Medicine, Medical Faculty, Erciyes University, 38030, Kayseri, Turkey
| |
Collapse
|
21
|
Umanets A, Surono IS, Venema K. I am better than I look: genome based safety assessment of the probiotic Lactiplantibacillus plantarum IS-10506. BMC Genomics 2023; 24:518. [PMID: 37667166 PMCID: PMC10478331 DOI: 10.1186/s12864-023-09495-y] [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: 12/14/2022] [Accepted: 06/30/2023] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND Safety of probiotic strains that are used in human and animal trials is a prerequisite. Genome based safety assessment of probiotics has gained popularity due its cost efficiency and speed, and even became a part of national regulation on foods containing probiotics in Indonesia. However, reliability of the safety assessment based only on a full genome sequence is not clear. Here, for the first time, we sequenced, assembled, and analysed the genome of the probiotic strain Lactiplantibacillus plantarum IS-10506, that was isolated from dadih, a traditional fermented buffalo milk. The strain has already been used as a probiotic for more than a decade, and in several clinical trials proven to be completely safe. METHODS The genome of the probiotic strain L. plantarum IS-10506 was sequenced using Nanopore sequencing technology, assembled, annotated and screened for potential harmful (PH) and beneficial genomic features. The presence of the PH features was assessed from general annotation, as well as with the use of specialised tools. In addition, PH regions in the genome were compared to all other probiotic and non-probiotic L. plantarum strains available in the NCBI RefSeq database. RESULTS For the first time, a high-quality complete genome of L. plantarum IS-10506 was obtained, and an extensive search for PH and a beneficial signature was performed. We discovered a number of PH features within the genome of L. plantarum IS-10506 based on the general annotation, including various antibiotic resistant genes (AMR); however, with a few exceptions, bioinformatics tools specifically developed for AMR detection did not confirm their presence. We further demonstrated the presence of the detected PH genes across multiple L. plantarum strains, including probiotics, and overall high genetic similarities between strains. CONCLUSION The genome of L. plantarum IS-10506 is predicted to have several PH features. However, the strain has been utilized as a probiotic for over a decade in several clinical trials without any adverse effects, even in immunocompromised children with HIV infection and undernourished children. This implies the presence of PH feature signatures within the probiotic genome does not necessarily indicate their manifestation during administration. Importantly, specialized tools for the search of PH features were found more robust and should be preferred over manual searches in a general annotation.
Collapse
Affiliation(s)
- Alexander Umanets
- Centre for Healthy Eating & Food Innovation (HEFI), Maastricht University - campus Venlo, Villafloraweg 1, Venlo, 5928 SZ, the Netherlands
- Chair Group Youth Food and Health, Faculty of Science and Engineering, Maastricht University - campus Venlo, Villafloraweg 1, Venlo, 5928 SZ, the Netherlands
| | - Ingrid S Surono
- Food Technology Department, Faculty of Engineering, Bina Nusantara University, Jakarta, 11480, Indonesia
| | - Koen Venema
- Centre for Healthy Eating & Food Innovation (HEFI), Maastricht University - campus Venlo, Villafloraweg 1, Venlo, 5928 SZ, the Netherlands.
| |
Collapse
|
22
|
Song EJ, Lee ES, Kim YI, Shin DU, Eom JE, Shin HS, Lee SY, Nam YD. Gut microbial change after administration of Lacticaseibacillus paracasei AO356 is associated with anti-obesity in a mouse model. Front Endocrinol (Lausanne) 2023; 14:1224636. [PMID: 37705572 PMCID: PMC10496115 DOI: 10.3389/fendo.2023.1224636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 08/14/2023] [Indexed: 09/15/2023] Open
Abstract
Introduction The status of an impaired gut microbial community, known as dysbiosis, is associated with metabolic diseases such as obesity and insulin resistance. The use of probiotics has been considered an effective approach for the treatment and prevention of obesity and related gut microbial dysbiosis. The anti-obesity effect of Lacticaseibacillus paracasei AO356 was recently reported. However, the effect of L. paracasei AO356 on the gut microbiota has not yet been identified. This study aimed to elucidate the effect of L. paracasei AO356 on gut microbiota and ensure its safety for use as a probiotic. Methods Oral administration of L. paracasei AO356 (107 colony-forming units [CFU]/mg per day, 5 days a week, for 10 weeks) to mice fed a high-fat diet significantly suppressed weight gain and fat mass. We investigated the composition of gut microbiota and explored its association with obesity-related markers. Results Oral administration of L. paracasei AO356 significantly changed the gut microbiota and modified the relative abundance of Lactobacillus, Bacteroides, and Oscillospira. Bacteroides and Oscillospira were significantly related to the lipid metabolism pathway and obesity-related markers. We also confirmed the safety of L. paracasei AO356 using antibiotics resistance, hemolysis activity, bile salt hydrolase activity, lactate production, and toxicity tests following the safety assessment guidelines of the Ministry of Food and Drug Safety (MFDS). Discussion This study demonstrated that L. paracasei AO356 is not only associated with an anti-obesity effect but also with changes in the gut microbiota and metabolic pathways related to obesity. Furthermore, the overall safety assessment seen in this study could increase the potential use of new probiotic materials with anti-obesity effects.
Collapse
Affiliation(s)
- Eun-Ji Song
- Food Functionality Research Division, Korea Food Research Institute, Wanju-gun, Republic of Korea
| | - Eun-Sook Lee
- Department of Pharmacology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
- Bio-medical Institute of Technology, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Young In Kim
- Food Functionality Research Division, Korea Food Research Institute, Wanju-gun, Republic of Korea
| | - Dong-Uk Shin
- Food Functionality Research Division, Korea Food Research Institute, Wanju-gun, Republic of Korea
- Department of Food Biotechnology, Korea University of Science and Technology, Daejeon, Republic of Korea
| | - Ji-Eun Eom
- Food Functionality Research Division, Korea Food Research Institute, Wanju-gun, Republic of Korea
| | - Hee Soon Shin
- Food Functionality Research Division, Korea Food Research Institute, Wanju-gun, Republic of Korea
- Department of Food Biotechnology, Korea University of Science and Technology, Daejeon, Republic of Korea
| | - So-Young Lee
- Food Functionality Research Division, Korea Food Research Institute, Wanju-gun, Republic of Korea
- Department of Food Biotechnology, Korea University of Science and Technology, Daejeon, Republic of Korea
| | - Young-Do Nam
- Food Functionality Research Division, Korea Food Research Institute, Wanju-gun, Republic of Korea
| |
Collapse
|
23
|
Cauli B, Dusart I, Li D. Lactate as a determinant of neuronal excitability, neuroenergetics and beyond. Neurobiol Dis 2023:106207. [PMID: 37331530 DOI: 10.1016/j.nbd.2023.106207] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 06/13/2023] [Accepted: 06/15/2023] [Indexed: 06/20/2023] Open
Abstract
Over the last decades, lactate has emerged as important energy substrate for the brain fueling of neurons. A growing body of evidence now indicates that it is also a signaling molecule modulating neuronal excitability and activity as well as brain functions. In this review, we will briefly summarize how different cell types produce and release lactate. We will further describe different signaling mechanisms allowing lactate to fine-tune neuronal excitability and activity, and will finally discuss how these mechanisms could cooperate to modulate neuroenergetics and higher order brain functions both in physiological and pathological conditions.
Collapse
Affiliation(s)
- Bruno Cauli
- Sorbonne Université, CNRS, INSERM, Neurosciences Paris Seine - Institut de Biologie Paris Seine (NPS-IBPS), 9 quai Saint Bernard, 75005 Paris, France.
| | - Isabelle Dusart
- Sorbonne Université, CNRS, INSERM, Neurosciences Paris Seine - Institut de Biologie Paris Seine (NPS-IBPS), 9 quai Saint Bernard, 75005 Paris, France
| | - Dongdong Li
- Sorbonne Université, CNRS, INSERM, Neurosciences Paris Seine - Institut de Biologie Paris Seine (NPS-IBPS), 9 quai Saint Bernard, 75005 Paris, France
| |
Collapse
|
24
|
Lefèvre CR, Turban A, Luque Paz D, Penven M, René C, Langlois B, Pawlowski M, Collet N, Piau C, Cattoir V, Bendavid C. Early detection of plasma d-lactate: Toward a new highly-specific biomarker of bacteraemia? Heliyon 2023; 9:e16466. [PMID: 37265627 PMCID: PMC10230201 DOI: 10.1016/j.heliyon.2023.e16466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 04/18/2023] [Accepted: 05/18/2023] [Indexed: 06/03/2023] Open
Abstract
Background Bloodstream infections are a leading cause of mortality. Their detection relies on blood cultures (BCs) but time to positivity is often between tens of hours and days. d-lactate is a metabolite widely produced by bacteria but very few in human. We aimed to evaluate d-lactate, d-lactate/l-lactate ratio and d-lactate/total lactate ratio in plasma as potential early biomarkers of bacteraemia on a strictly biological standpoint. Methods A total of 228 plasma specimens were collected from patients who had confirmed bacteraemia (n = 131) and healthy outpatients (n = 97). Specific l-lactate and d-lactate analyses were performed using enzymatic assays and analytical performances of d-lactate, d-lactate/total lactate and d-lactate/l-lactate ratios for the diagnosis of bacteraemia were assessed. Results A preliminary in vitro study confirmed that all strains of Escherichia coli, Klebsiella pneumoniae and Staphylococcus aureus were able to produce d-lactate at significant levels. In patients, plasma d-lactate level was the most specific biomarker predicting a bacteraemia profile with a specificity and predictive positive value of 100% using a cut-off of 131 μmol.L-1. However, sensitivity and negative predictive value were rather low, estimated at 31% and 52%, respectively. d-lactate displayed an Area Under Receiver Operating Characteristic (AUROC) curve of 0.696 with a P value < 0.0001. There was no difference of d-lactate levels between BCs bottles positive for Gram-positive or Gram-negative bacteria (p = 0.55). Conclusion d-lactate shows promise as a specific early biomarker of bacterial metabolism. The development of rapid automated assays could raise clinical applications for infectious diseases diagnosis including early bacteraemia prediction.
Collapse
Affiliation(s)
- Charles R. Lefèvre
- Biochemistry Laboratory, Pontchaillou Hospital, Rennes University Hospital, Rennes, France
| | - Adrien Turban
- Bacteriology Laboratory, Pontchaillou Hospital, Rennes University Hospital, Rennes, France
| | - David Luque Paz
- Infectious Diseases and Intensive Care Unit, Pontchaillou Hospital, Rennes University Hospital, Rennes, France
| | - Malo Penven
- Bacteriology Laboratory, Pontchaillou Hospital, Rennes University Hospital, Rennes, France
| | - Céline René
- Biochemistry Laboratory, Pontchaillou Hospital, Rennes University Hospital, Rennes, France
| | | | - Maxime Pawlowski
- Biochemistry Laboratory, Pontchaillou Hospital, Rennes University Hospital, Rennes, France
| | - Nicolas Collet
- Biochemistry Laboratory, Pontchaillou Hospital, Rennes University Hospital, Rennes, France
| | - Caroline Piau
- Bacteriology Laboratory, Pontchaillou Hospital, Rennes University Hospital, Rennes, France
| | - Vincent Cattoir
- Bacteriology Laboratory, Pontchaillou Hospital, Rennes University Hospital, Rennes, France
| | - Claude Bendavid
- Biochemistry Laboratory, Pontchaillou Hospital, Rennes University Hospital, Rennes, France
| |
Collapse
|
25
|
Kumar L, Dwivedi M, Jain N, Shete P, Solanki S, Gupta R, Jain A. The Female Reproductive Tract Microbiota: Friends and Foe. Life (Basel) 2023; 13:1313. [PMID: 37374096 DOI: 10.3390/life13061313] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
We do not seem to be the only owner of our body; it houses a large population of microorganisms. Through countless years of coevolution, microbes and hosts have developed complex relationships. In the past few years, the impact of microbial communities on their host has received significant attention. Advanced molecular sequencing techniques have revealed a remarkable diversity of the organ-specific microbiota populations, including in the reproductive tract. Currently, the goal of researchers has shifted to generate and perceive the molecular data of those hidden travelers of our body and harness them for the betterment of human health. Recently, microbial communities of the lower and upper reproductive tract and their correlation with the implication in reproductive health and disease have been extensively studied. Many intrinsic and extrinsic factors influences the female reproductive tract microbiota (FRTM) that directly affects the reproductive health. It is now believed that FRTM dominated by Lactobacilli may play an essential role in obstetric health beyond the woman's intimate comfort and well-being. Women with altered microbiota may face numerous health-related issues. Altered microbiota can be manipulated and restored to their original shape to re-establish normal reproductive health. The aim of the present review is to summarize the FRTM functional aspects that influence reproductive health.
Collapse
Affiliation(s)
- Lokesh Kumar
- Genus Breeding India Pvt Ltd., Pune 411005, Maharashtra, India
| | - Monika Dwivedi
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra 835215, Jharkhand, India
| | - Natasha Jain
- Department of Biotechnology, Chaudhary Charan Singh University, Meerut 250001, Uttar Pradesh, India
| | - Pranali Shete
- Department of Microbiology, Smt. CHM College, University of Mumbai, Ulhasnagar 421003, Maharashtra, India
| | - Subhash Solanki
- Genus Breeding India Pvt Ltd., Pune 411005, Maharashtra, India
| | - Rahul Gupta
- Genus Breeding India Pvt Ltd., Pune 411005, Maharashtra, India
| | - Ashish Jain
- Department of Microbiology, Smt. CHM College, University of Mumbai, Ulhasnagar 421003, Maharashtra, India
| |
Collapse
|
26
|
Lund J, Breum AW, Gil C, Falk S, Sass F, Isidor MS, Dmytriyeva O, Ranea-Robles P, Mathiesen CV, Basse AL, Johansen OS, Fadahunsi N, Lund C, Nicolaisen TS, Klein AB, Ma T, Emanuelli B, Kleinert M, Sørensen CM, Gerhart-Hines Z, Clemmensen C. The anorectic and thermogenic effects of pharmacological lactate in male mice are confounded by treatment osmolarity and co-administered counterions. Nat Metab 2023; 5:677-698. [PMID: 37055619 DOI: 10.1038/s42255-023-00780-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 03/09/2023] [Indexed: 04/15/2023]
Abstract
Lactate is a circulating metabolite and a signalling molecule with pleiotropic physiological effects. Studies suggest that lactate modulates energy balance by lowering food intake, inducing adipose browning and increasing whole-body thermogenesis. Yet, like many other metabolites, lactate is often commercially produced as a counterion-bound salt and typically administered in vivo through hypertonic aqueous solutions of sodium L-lactate. Most studies have not controlled for injection osmolarity and the co-injected sodium ions. Here, we show that the anorectic and thermogenic effects of exogenous sodium L-lactate in male mice are confounded by the hypertonicity of the injected solutions. Our data reveal that this is in contrast to the antiobesity effect of orally administered disodium succinate, which is uncoupled from these confounders. Further, our studies with other counterions indicate that counterions can have confounding effects beyond lactate pharmacology. Together, these findings underscore the importance of controlling for osmotic load and counterions in metabolite research.
Collapse
Affiliation(s)
- Jens Lund
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Alberte Wollesen Breum
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Cláudia Gil
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sarah Falk
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Frederike Sass
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Center for Adipocyte Signaling, University of Southern Denmark, Odense, Denmark
| | - Marie Sophie Isidor
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Oksana Dmytriyeva
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Pablo Ranea-Robles
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Cecilie Vad Mathiesen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Astrid Linde Basse
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Olivia Sveidahl Johansen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Center for Adipocyte Signaling, University of Southern Denmark, Odense, Denmark
| | - Nicole Fadahunsi
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Camilla Lund
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Trine Sand Nicolaisen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- The August Krogh Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Anders Bue Klein
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Tao Ma
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Brice Emanuelli
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Maximilian Kleinert
- The August Krogh Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
- Muscle Physiology and Metabolism Group, German Institute of Human Nutrition, Potsdam-Rehbruecke (DIfE), Nuthetal, Germany
| | - Charlotte Mehlin Sørensen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Zachary Gerhart-Hines
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
- Center for Adipocyte Signaling, University of Southern Denmark, Odense, Denmark.
| | - Christoffer Clemmensen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| |
Collapse
|
27
|
Huang PJJ, Liu J. Simultaneous Detection of L-Lactate and D-Glucose Using DNA Aptamers in Human Blood Serum. Angew Chem Int Ed Engl 2023; 62:e202212879. [PMID: 36693796 DOI: 10.1002/anie.202212879] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023]
Abstract
L-lactate is a key metabolite indicative of physiological states, glycolysis pathways, and various diseases such as sepsis, heart attack, lactate acidosis, and cancer. Detection of lactate has been relying on a few enzymes that need additional oxidants. In this work, DNA aptamers for L-lactate were obtained using a library-immobilization selection method and the highest affinity aptamer reached a Kd of 0.43 mM as determined using isothermal titration calorimetry. The aptamers showed up to 50-fold selectivity for L-lactate over D-lactate and had little responses to other closely related analogs such as pyruvate or 3-hydroxybutyrate. A fluorescent biosensor based on the strand displacement method showed a limit of detection of 0.55 mM L-lactate, and the sensor worked in 90 % serum. Simultaneous detection of L-lactate and D-glucose in the same solution was achieved. This work has broadened the scope of aptamers to simple metabolites and provided a useful probe for continuous and multiplexed monitoring.
Collapse
Affiliation(s)
- Po-Jung Jimmy Huang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| |
Collapse
|
28
|
Sun T, Liu X, Su Y, Wang Z, Cheng B, Dong N, Wang J, Shan A. The efficacy of anti-proteolytic peptide R7I in intestinal inflammation, function, microbiota, and metabolites by multi-omics analysis in murine bacterial enteritis. Bioeng Transl Med 2023; 8:e10446. [PMID: 36925697 PMCID: PMC10013768 DOI: 10.1002/btm2.10446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 10/21/2022] [Accepted: 10/30/2022] [Indexed: 11/11/2022] Open
Abstract
Increased antibiotic resistance poses a major limitation in tackling inflammatory bowel disease and presents a large challenge for global health care. Antimicrobial peptides (AMPs) are a potential class of antimicrobial agents. Here, we have designed the potential oral route for antimicrobial peptide R7I with anti-proteolytic properties to deal with bacterial enteritis in mice. The results revealed that R7I protected the liver and gut from damage caused by inflammation. RNA-Seq analysis indicated that R7I promoted digestion and absorption in the small intestine by upregulating transmembrane transporter activity, lipid and small molecule metabolic processes and other pathways, in addition to upregulating hepatic steroid biosynthesis and fatty acid degradation. For the gut microbiota, Clostridia were significantly reduced in the R7I-treated group, and Odoribacteraceae, an efficient isoalloLCA-synthesizing strain, was the main dominant strain, protecting the gut from potential pathogens. In addition, we further discovered that R7I reduced the accumulation of negative organic acid metabolites. Overall, R7I exerted better therapeutic and immunomodulatory potential in the bacterial enteritis model, greatly reduced the risk of disease onset, and provided a reference for the in vivo application of antimicrobial peptides.
Collapse
Affiliation(s)
- Taotao Sun
- Laboratory of Molecular Nutrition and Immunity, the Institute of Animal NutritionNortheast Agricultural UniversityHarbinChina
| | - Xuesheng Liu
- Laboratory of Molecular Nutrition and Immunity, the Institute of Animal NutritionNortheast Agricultural UniversityHarbinChina
| | - Yunzhe Su
- Laboratory of Molecular Nutrition and Immunity, the Institute of Animal NutritionNortheast Agricultural UniversityHarbinChina
| | - Zihang Wang
- Laboratory of Molecular Nutrition and Immunity, the Institute of Animal NutritionNortheast Agricultural UniversityHarbinChina
| | - Baojing Cheng
- Laboratory of Molecular Nutrition and Immunity, the Institute of Animal NutritionNortheast Agricultural UniversityHarbinChina
| | - Na Dong
- Laboratory of Molecular Nutrition and Immunity, the Institute of Animal NutritionNortheast Agricultural UniversityHarbinChina
| | - Jiajun Wang
- Laboratory of Molecular Nutrition and Immunity, the Institute of Animal NutritionNortheast Agricultural UniversityHarbinChina
| | - Anshan Shan
- Laboratory of Molecular Nutrition and Immunity, the Institute of Animal NutritionNortheast Agricultural UniversityHarbinChina
| |
Collapse
|
29
|
Site Specialization of Human Oral Veillonella Species. Microbiol Spectr 2023; 11:e0404222. [PMID: 36695592 PMCID: PMC9927086 DOI: 10.1128/spectrum.04042-22] [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] [Indexed: 01/26/2023] Open
Abstract
Veillonella species are abundant members of the human oral microbiome with multiple interspecies commensal relationships. Examining the distribution patterns of Veillonella species across the oral cavity is fundamental to understanding their oral ecology. In this study, we used a combination of pangenomic analysis and oral metagenomic information to clarify Veillonella taxonomy and to test the site specialist hypothesis for the Veillonella genus, which contends that most oral bacterial species are adapted to live at specific oral sites. Using isolate genome sequences combined with shotgun metagenomic sequence data, we showed that Veillonella species have clear, differential site specificity: Veillonella parvula showed strong preference for supra- and subgingival plaque, while closely related V. dispar, as well as more distantly related V. atypica, preferred the tongue dorsum, tonsils, throat, and hard palate. In addition, the provisionally named Veillonella sp. Human Microbial Taxon 780 showed strong site specificity for keratinized gingiva. Using comparative genomic analysis, we identified genes associated with thiamine biosynthesis and the reductive pentose phosphate cycle that may enable Veillonella species to occupy their respective habitats. IMPORTANCE Understanding the microbial ecology of the mouth is fundamental for understanding human physiology. In this study, metapangenomics demonstrated that different Veillonella species have clear ecological preferences in the oral cavity of healthy humans, validating the site specialist hypothesis. Furthermore, the gene pool of different Veillonella species was found to be reflective of their ecology, illuminating the potential role of vitamins and carbohydrates in determining Veillonella distribution patterns and interspecies interactions.
Collapse
|
30
|
Yang JX, Han YJ, Yang MM, Gao CH, Cao J. Risk factors and predictors of acute gastrointestinal injury in stroke patients. Clin Neurol Neurosurg 2023; 225:107566. [PMID: 36603338 DOI: 10.1016/j.clineuro.2022.107566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/09/2022] [Accepted: 12/10/2022] [Indexed: 12/24/2022]
Abstract
PURPOSE This prospective study investigates the incidence, risk factors, biological markers, and predictors of acute gastrointestinal injury (AGI) in patients with stroke. METHODS The study involved a total of 98 patients with acute cerebrovascular disease were included. According to the ESICM, the definition of AGI in intensive care patients is classified as grade 0, I, II and III. Patients' demographics, serological indicators (e.g., urea nitrogen, albumin, D-lactate, α-GST, neutrophil count and lymphocyte count), relevant scores (NIHSS score, GCS score, APACHE II score), length of hospital stay as well as the 7-day and 28-day mortality were recorded. RESULTS In 98 patients, the incidence of AGI was 90.8 %. The APACHE II, NIHSS, GCS and Hs-mGPS scores significantly increased the odds of a higher AGI grade (P < 0.05). Also, current use of antibiotics and the presence of pneumonia significantly increased the probability of a higher AGI grade (P < 0.05). NLR, diabetes and dehydrating drugs increased the probability of AGI grade II and III (P < 0.05). Finally, an early commencement of endovascular treatment significantly reduced the incidence of AGI class III (P < 0.05). Patients with higher AGI grades had longer hospital stays and higher 28-day mortality (P < 0.05). CONCLUSION The degree of the neurological deficit in stroke patients (high NIHSS score, low GCS score) in this study was associated with the development of AGI. The patients' gastrointestinal barrier function continued to deteriorate during the week of onset. The APACHE II score, NRL score and HS-mGPS score have some predictive value for the occurrence of AGI in stroke patients.
Collapse
Affiliation(s)
- Jia-Xin Yang
- Neurology Department,Neuromedical Center, First Hospital of Jilin University, Changchun 130021, China
| | - Yu-Juan Han
- Neurology Department,Neuromedical Center, First Hospital of Jilin University, Changchun 130021, China
| | - Miao-Miao Yang
- Neurology Department,Neuromedical Center, First Hospital of Jilin University, Changchun 130021, China
| | - Cai-Hong Gao
- Neurology Department,Neuromedical Center, First Hospital of Jilin University, Changchun 130021, China
| | - Jie Cao
- Neurology Department,Neuromedical Center, First Hospital of Jilin University, Changchun 130021, China.
| |
Collapse
|
31
|
The effect of a high-protein and high-carbohydrate diet on the content of D-lactate in the blood plasma and intestines of a model organism – rainbow trout. ACTA BIOMEDICA SCIENTIFICA 2022. [DOI: 10.29413/abs.2022-7.5-2.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
D-lactic acid stereoisomer (D-lactate) is produced by the intestinal microflora and can enter the bloodstream and cause in some cases a condition of acute D-lactic acidemia known as short gut syndrome. The level of D-lactate in blood and in the contents of the intestine is considered as a promising marker of the development of inflammation associated with microflora disorders, as well as with the development of a bacterial infection, while the mechanism of its entry into the blood of vertebrates from the intestine has not been studied in detail.The aim of the study. To investigate the relationship between the level of D-lactate in blood and in the intestine, taking into account the permeability of the intestinal epithelium.Materials and methods. As a model object of the study, we used juvenile rainbow trout O. mykiss. For 54 days, they were high-carbohydrate or high-protein fed. Since different types of bacteria prefer different substrates, it was expected that at the end of the experiment, the composition of the intestinal microflora would be significantly different in fish fed with different diets. The content of D-lactate in blood plasma in vitro was assessed by the Larsen method with modifications; intestinal permeability was assessed by the intensity of fluorescence of the FITС-Dextran stain in the blood of fish. The analysis of the metagenome of samples of the contents and epithelium of the fore and hind intestine was carried out. The hematological profile was partially characterized using blood smears taken immediately after fish blood sampling. By the means of a different diet, it was possible to obtain two groups of fish that differ significantly in the permeability of the intestinal epithelium and in the content of D-lactate in the intestine. At the same time, despite the differences between the experimental groups in the content of D-lactate in the intestine and in intestinal permeability, no significant differences in D-lactate level in blood were found between them. Analysis of the composition of the intestinal microbiome by metabarcoding for the 16S rRNA gene revealed the absence of lactobacilli in the production of D-lactate in fish.Results. It was shown that the mechanism of accumulation of D-lactate in the blood plasma in fish is less associated with increased intestinal permeability or hyperproduction of this metabolite by the intestinal microflora and is more associated with the utilization of D-lactate in the body. In the experiment, it was not possible to achieve a significant change in the species composition of the intestinal microflora of trout under the influence of a highcarbohydrate diet for 54 days compared to fish that received high-protein diet. Some tendencies towards changes in the composition of the microflora were found in the contents of the hindgut, and perhaps with a longer exposure, these changes could reach a statistically significant level.
Collapse
|
32
|
Ye L, Jiang Y, Zhang M. Crosstalk between glucose metabolism, lactate production and immune response modulation. Cytokine Growth Factor Rev 2022; 68:81-92. [PMID: 36376165 DOI: 10.1016/j.cytogfr.2022.11.001] [Citation(s) in RCA: 77] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022]
Abstract
Metabolites of glycolytic metabolism have been identified as signaling molecules and regulators of gene expression, in addition to their basic function as major energy and biosynthetic source. Immune cells reprogram metabolic pathways to cater to energy and biosynthesis demands upon activation. Most lymphocytes, including inflammatory M1 macrophages, mainly shift from oxidative phosphorylation to glycolysis, whereas regulatory T cells and M2 macrophages preferentially use the tricarboxylic acid (TCA) cycle and have reduced glycolysis. Recent studies have revealed the "non-metabolic" signaling functions of intermediates of the mitochondrial pathway and glycolysis. The roles of citrate, succinate and itaconate in immune response, including post-translational modifications of proteins and macrophages activation, have been highlighted. As an end product of glycolysis, lactate has received considerable interest from researchers. In this review, we specifically focused on studies exploring the integration of lactate into immune cell biology and associated pathologies. Lactate can act as a double-edged sword. On one hand, activated immune cells prefer to use lactate to support their function. On the other hand, accumulated lactate in the tissue microenvironment acts as a signaling molecule that restricts immune cell function. Recently, a novel epigenetic change mediated by histone lysine lactylation has been proposed. The burgeoning researches support the idea that histone lactylation participates in diverse cellular events. This review describes glycolytic metabolism, including the immunoregulation of metabolites of the TCA cycle and lactate. These latest findings strengthen our understanding on tumor and chronic inflammatory diseases and offer potential therapeutic options.
Collapse
Affiliation(s)
- Lei Ye
- Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, NHC Key Laboratory of Digestive Diseases, Shanghai 200001, China
| | - Yi Jiang
- Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, NHC Key Laboratory of Digestive Diseases, Shanghai 200001, China
| | - Mingming Zhang
- Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, NHC Key Laboratory of Digestive Diseases, Shanghai 200001, China; Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China.
| |
Collapse
|
33
|
Hussein AH, Patra AK, Puchala R, Wilson BK, Goetsch AL. Effects of Restricted Availability of Drinking Water on Blood Characteristics and Constituents in Dorper, Katahdin, and St. Croix Sheep from Different Regions of the USA. Animals (Basel) 2022; 12:3167. [PMID: 36428395 PMCID: PMC9686939 DOI: 10.3390/ani12223167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/18/2022] Open
Abstract
Different hair sheep breeds originated from diverse climatic regions of the USA may show varying adaptability to water deprivation. Therefore, the objective of this study was to assess the effects of restricted availability of drinking water on blood characteristics and constituent concentrations in different breeds of hair sheep from various regions the USA. For this study, 45 Dorper (initial age = 3.7 ± 0.34 yr), 45 Katahdin (3.9 ± 0.36 yr), and 44 St. Croix (2.7 ± 0.29 yr) sheep from 45 farms in 4 regions of the USA (Midwest, Northwest, Southeast, and central Texas) were used. Ad libitum water intake was determined during wk 2 of period one, with 75% of ad libitum water intake offered during wk 2 of period two, and 50% of ad libitum water intake offered for 5 wk (i.e., wk 5−9) in period three. Water was offered at 07:00 or 07:30 h, with blood samples collected at 08:00 and(or) 14:00 h in wk 1, 2, 3, 4, 8, and 9 for variables such as hemoglobin and oxygen saturation and wk 2, 4, 6, 8, and 9 for concentrations of glucose and other constituents. The blood oxygen concentration at 08:00 h was 4.86, 4.93, and 5.25 mmol/L in period one and 4.89, 4.81, and 5.74 mmol/L in period three for Dorper, Katahdin, and St. Croix, respectively (SEM = 0.160; p = 0.001). Blood oxygen at 14:00 h was 4.37, 4.61, and 4.74 mmol/L in period one and 4.66, 4.81, and 5.46 mmol/L in period three for Dorper, Katahdin, and St. Croix, respectively (SEM = 0.154; p = 0.003). St. Croix were able to maintain a higher (p < 0.001) blood oxygen concentration than Dorper and Katahdin regardless of water availability. The pattern of change in blood concentrations with advancing time varied considerably among constituents. However, concentrations of glucose (55.3 and 56.2 mg/dL; SEM = 0.84), lactate (24.1 and 22.5 mg/dL; SEM = 0.79), total protein (7.08 and 7.17 g/dL; SEM = 0.0781), and albumin (2.59 and 2.65 g/dL in wk 2 and 9, respectively; SEM = 0.029) were similar (p > 0.05) between periods one and three. Conversely, concentrations of cholesterol (56.2 and 69.3 mg/dL; SEM = 1.33) and triglycerides (28.6 and 34.5 mg/dL in wk 2 and 9, respectively; SEM = 0.98) were greater (p < 0.05) in period three vs. 1. In conclusion, water restriction altered almost all the blood variables depending upon severity and duration of restriction, but the hair sheep breeds used from different regions of the USA, especially St. Croix, displayed considerable capacity to adapt to limited drinking water availability.
Collapse
Affiliation(s)
- Ali Hussein Hussein
- American Institute for Goat Research, School of Agriculture and Applied sciences, Langston University, Langston, OK 73050, USA
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Amlan Kumar Patra
- American Institute for Goat Research, School of Agriculture and Applied sciences, Langston University, Langston, OK 73050, USA
- Department of Animal Nutrition, West Bengal University of Animal and Fishery Sciences, Kolkata 700037, India
| | - Ryszard Puchala
- American Institute for Goat Research, School of Agriculture and Applied sciences, Langston University, Langston, OK 73050, USA
| | - Blake Kenyon Wilson
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Arthur Louis Goetsch
- American Institute for Goat Research, School of Agriculture and Applied sciences, Langston University, Langston, OK 73050, USA
| |
Collapse
|
34
|
Morphological Assessment and Biomarkers of Low-Grade, Chronic Intestinal Inflammation in Production Animals. Animals (Basel) 2022; 12:ani12213036. [PMID: 36359160 PMCID: PMC9654368 DOI: 10.3390/ani12213036] [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: 09/26/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 11/09/2022] Open
Abstract
Simple Summary Production animals are continuously exposed to environmental and dietary factors that might induce a state of low-grade, chronic intestinal inflammation. This condition compromises the productive performance and well-fare of these animals, requiring studies to understand what causes it and to develop control strategies. An intestinal inflammatory process is generally associated with alterations in the structure and functionality of its wall, resulting in the release of cellular components into the blood and/or feces. These components can act as biomarkers, i.e., they are measured to identify and quantify an inflammatory process without requiring invasive methods. In this review we discuss the mechanisms of low-grade inflammation, its effects on animal production and sustainability, and the identification of biomarkers that could provide early diagnosis of this process and support studies of useful interventional strategies. Abstract The complex interaction between the intestinal mucosa, the gut microbiota, and the diet balances the host physiological homeostasis and is fundamental for the maximal genetic potential of production animals. However, factors such as chemical and physical characteristics of the diet and/or environmental stressors can continuously affect this balance, potentially inducing a state of chronic low-grade inflammation in the gut, where inflammatory parameters are present and demanding energy, but not in enough intensity to provoke clinical manifestations. It’s vital to expand the understanding of inflammation dynamics and of how they compromise the function activity and microscopic morphology of the intestinal mucosa. These morphometric alterations are associated with the release of structural and functional cellular components into the feces and the blood stream creating measurable biomarkers to track this condition. Moreover, the identification of novel, immunometabolic biomarkers can provide dynamic and predictors of low-grade chronic inflammation, but also provide indicators of successful nutritional or feed additive intervention strategies. The objective of this paper is to review the mechanisms of low-grade inflammation, its effects on animal production and sustainability, and the biomarkers that could provide early diagnosis of this process and support studies of useful interventional strategies.
Collapse
|
35
|
Quantification of cytosol and membrane proteins in rumen epithelium of sheep with low or high CH4 emission phenotype. PLoS One 2022; 17:e0273184. [PMID: 36256644 PMCID: PMC9578583 DOI: 10.1371/journal.pone.0273184] [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: 03/06/2022] [Accepted: 08/03/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Ruminant livestock are a major contributor to Australian agricultural sector carbon emissions. Variation in methane (CH4) produced from enteric microbial fermentation of feed in the reticulo-rumen of sheep differs with different digestive functions. METHOD We isolated rumen epithelium enzymatically to extract membrane and cytosol proteins from sheep with high (H) and low (L) CH4 emission. Protein abundance was quantified using SWATH-mass spectrometry. RESULTS The research found differences related to the metabolism of glucose, lactate and processes of cell defence against microbes in sheep from each phenotype. Enzymes in the methylglyoxal pathway, a side path of glycolysis, resulting in D-lactate production, differed in abundance. In the H CH4 rumen epithelium the enzyme hydroxyacylglutathione hydrolase (HAGH) was 2.56 fold higher in abundance, whereas in the L CH4 epithelium lactate dehydrogenase D (LDHD) was 1.93 fold higher. Malic enzyme 1 which converts D-lactate to pyruvate via the tricarboxylic cycle was 1.57 fold higher in the L CH4 phenotype. Other proteins that are known to regulate cell defence against microbes had differential abundance in the epithelium of each phenotype. CONCLUSION Differences in the abundance of enzymes involved in the metabolism of glucose were associated with H and L CH4 phenotype sheep. Potentially this represents an opportunity to use protein markers in the rumen epithelium to select low CH4 emitting sheep.
Collapse
|
36
|
Quiroga J, Alarcón P, Manosalva C, Teuber S, Carretta MD, Burgos RA. d-lactate-triggered extracellular trap formation in cattle polymorphonuclear leucocytes is glucose metabolism dependent. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 135:104492. [PMID: 35830898 DOI: 10.1016/j.dci.2022.104492] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
D-lactic acidosis is a metabolic disease of cattle caused by the digestive overgrowth of bacteria that are highly producers of d-lactate, a metabolite that then reaches and accumulates in the bloodstream. d-lactate is a proinflammatory agent in cattle that induces the formation of extracellular traps (ETs) in polymorphonuclear leucocytes (PMN), although information on PMN metabolic requirements for this response mechanism is insufficient. In the present study, metabolic pathways involved in ET formation induced by d-lactate were studied. We show that d-lactate but not l-lactate induced ET formation in cattle PMN. We analyzed the metabolomic changes induced by d-lactate in bovine PMN using gas chromatography-mass spectrometry (GC-MS). Several metabolic pathways were altered, including glycolysis/gluconeogenesis, amino sugar and nucleotide sugar metabolism, galactose metabolism, starch and sucrose metabolism, fructose and mannose metabolism, and pentose phosphate pathway. d-lactate increased intracellular levels of glucose and glucose-6-phosphate, and increased uptake of the fluorescent glucose analog 2-NBDG, suggesting improved glycolytic activity. In addition, using an enzymatic assay and transmission electron microscopy (TEM), we observed that d-lactate was able to decrease intracellular glycogen levels and the presence of glycogen granules. Relatedly, d-lactate increased the expression of enzymes of glycolysis, gluconeogenesis and glycogen metabolism. In addition, 2DG (a hexokinase inhibitor), 3PO (a 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3 inhibitor), MB05032 (inhibitor of fructose-1,6-bisphosphatase) and CP-91149 (inhibitor of glycogen phosphorylase) reduced d-lactate-triggered ETosis. Taken together, these results suggest that d-lactate induces a metabolic rewiring that increases glycolysis, gluconeogenesis and glycogenolysis, all of which are required for d-lactate-induced ET release in cattle PMN.
Collapse
Affiliation(s)
- John Quiroga
- Laboratorio de Farmacología de la Inflamación, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Laboratorio de Inmunometabolismo, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Escuela de Graduados, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Pablo Alarcón
- Laboratorio de Farmacología de la Inflamación, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Laboratorio de Inmunometabolismo, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Carolina Manosalva
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Stefanie Teuber
- Laboratorio de Farmacología de la Inflamación, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Laboratorio de Inmunometabolismo, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - María Daniella Carretta
- Laboratorio de Farmacología de la Inflamación, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Laboratorio de Inmunometabolismo, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Rafael Agustín Burgos
- Laboratorio de Farmacología de la Inflamación, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Laboratorio de Inmunometabolismo, Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
| |
Collapse
|
37
|
Li X, Yang Y, Zhang B, Lin X, Fu X, An Y, Zou Y, Wang JX, Wang Z, Yu T. Lactate metabolism in human health and disease. Signal Transduct Target Ther 2022; 7:305. [PMID: 36050306 PMCID: PMC9434547 DOI: 10.1038/s41392-022-01151-3] [Citation(s) in RCA: 288] [Impact Index Per Article: 144.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 07/17/2022] [Accepted: 08/09/2022] [Indexed: 12/29/2022] Open
Abstract
The current understanding of lactate extends from its origins as a byproduct of glycolysis to its role in tumor metabolism, as identified by studies on the Warburg effect. The lactate shuttle hypothesis suggests that lactate plays an important role as a bridging signaling molecule that coordinates signaling among different cells, organs and tissues. Lactylation is a posttranslational modification initially reported by Professor Yingming Zhao’s research group in 2019. Subsequent studies confirmed that lactylation is a vital component of lactate function and is involved in tumor proliferation, neural excitation, inflammation and other biological processes. An indispensable substance for various physiological cellular functions, lactate plays a regulatory role in different aspects of energy metabolism and signal transduction. Therefore, a comprehensive review and summary of lactate is presented to clarify the role of lactate in disease and to provide a reference and direction for future research. This review offers a systematic overview of lactate homeostasis and its roles in physiological and pathological processes, as well as a comprehensive overview of the effects of lactylation in various diseases, particularly inflammation and cancer.
Collapse
Affiliation(s)
- Xiaolu Li
- Center for Regenerative Medicine, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University; Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China
| | - Yanyan Yang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Bei Zhang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Xiaotong Lin
- Department of Respiratory Medicine, Qingdao Municipal Hospital, Qingdao, 266011, China
| | - Xiuxiu Fu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China
| | - Yi An
- Department of Cardiology, The Affiliated Hospital of Qingdao University, No. 1677 Wutaishan Road, Qingdao, 266555, China
| | - Yulin Zou
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China
| | - Jian-Xun Wang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Zhibin Wang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China.
| | - Tao Yu
- Center for Regenerative Medicine, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University; Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China.
| |
Collapse
|
38
|
Liu X, Zhang Y, Li W, Zhou X. Lactylation, an emerging hallmark of metabolic reprogramming: Current progress and open challenges. Front Cell Dev Biol 2022; 10:972020. [PMID: 36092712 PMCID: PMC9462419 DOI: 10.3389/fcell.2022.972020] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 07/19/2022] [Indexed: 11/28/2022] Open
Abstract
Lactate, the end product of glycolysis, efficiently functions as the carbon source, signaling molecules and immune regulators. Lactylation, being regulated by lactate, has recently been confirmed as a novel contributor to epigenetic landscape, not only opening a new era for in-depth exploration of lactate metabolism but also offering key breakpoints for further functional and mechanistic research. Several studies have identified the pivotal role of protein lactylation in cell fate determination, embryonic development, inflammation, cancer, and neuropsychiatric disorders. This review summarized recent advances with respect to the discovery, the derivation, the cross-species landscape, and the diverse functions of lactylation. Further, we thoroughly discussed the discrepancies and limitations in available studies, providing optimal perspectives for future research.
Collapse
Affiliation(s)
- Xuelian Liu
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Yu Zhang
- Department of Clinical Laboratory, The Second Hospital of Jilin University, Changchun, China
| | - Wei Li
- Cancer Center, The First Hospital of Jilin University, Changchun, China
- *Correspondence: Wei Li, ; Xin Zhou,
| | - Xin Zhou
- Cancer Center, The First Hospital of Jilin University, Changchun, China
- Cancer Research Institute of Jilin University, The First Hospital of Jilin University, Changchun, China
- International Center of Future Science, Jilin University, Changchun, China
- *Correspondence: Wei Li, ; Xin Zhou,
| |
Collapse
|
39
|
Rocha Martin VN, Del’Homme C, Chassard C, Schwab C, Braegger C, Bernalier-Donadille A, Lacroix C. A proof of concept infant-microbiota associated rat model for studying the role of gut microbiota and alleviation potential of Cutibacterium avidum in infant colic. Front Nutr 2022; 9:902159. [PMID: 36071938 PMCID: PMC9441890 DOI: 10.3389/fnut.2022.902159] [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: 03/22/2022] [Accepted: 07/28/2022] [Indexed: 11/20/2022] Open
Abstract
Establishing the relationship between gut microbiota and host health has become a main target of research in the last decade. Human gut microbiota-associated animal models represent one alternative to human research, allowing for intervention studies to investigate causality. Recent cohort and in vitro studies proposed an altered gut microbiota and lactate metabolism with excessive H2 production as the main causes of infant colic. To evaluate H2 production by infant gut microbiota and to test modulation of gut colonizer lactose- and lactate-utilizer non-H2-producer, Cutibacterium avidum P279, we established and validated a gnotobiotic model using young germ-free rats inoculated with fecal slurries from infants younger than 3 months. Here, we show that infant microbiota-associated (IMA) rats inoculated with fresh feces from healthy (n = 2) and colic infants (n = 2) and fed infant formula acquired and maintained similar quantitative and qualitative fecal microbiota composition compared to the individual donor’s profile. We observed that IMA rats excreted high levels of H2, which were linked to a high abundance of lactate-utilizer H2-producer Veillonella. Supplementation of C. avidum P279 to colic IMA rats reduced H2 levels compared to animals receiving a placebo. Taken together, we report high H2 production by infant gut microbiota, which might be a contributing factor for infant colic, and suggest the potential of C. avidum P279 in reducing the abdominal H2 production, bloating, and pain associated with excessive crying in colic infants.
Collapse
Affiliation(s)
- Vanesa Natalin Rocha Martin
- Laboratory of Food Biotechnology, Department of Health Sciences and Technology, Institute of Food, Nutrition and Health, ETH-Zurich, Zurich, Switzerland
- Division of Gastroenterology and Nutrition, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Christophe Del’Homme
- INRAE UMR 454, MEDIS Unit, Clermont-Ferrand Research Centre, Saint Genes-Champanelle, France
| | | | - Clarissa Schwab
- Laboratory of Food Biotechnology, Department of Health Sciences and Technology, Institute of Food, Nutrition and Health, ETH-Zurich, Zurich, Switzerland
| | - Christian Braegger
- Division of Gastroenterology and Nutrition, University Children’s Hospital Zurich, Zurich, Switzerland
| | | | - Christophe Lacroix
- Laboratory of Food Biotechnology, Department of Health Sciences and Technology, Institute of Food, Nutrition and Health, ETH-Zurich, Zurich, Switzerland
- *Correspondence: Christophe Lacroix,
| |
Collapse
|
40
|
Pham VT, Greppi A, Chassard C, Braegger C, Lacroix C. Stepwise establishment of functional microbial groups in the infant gut between 6 months and 2 years: A prospective cohort study. Front Nutr 2022; 9:948131. [PMID: 35967780 PMCID: PMC9366138 DOI: 10.3389/fnut.2022.948131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 06/16/2022] [Indexed: 11/13/2022] Open
Abstract
The early intestinal colonization of functional microbial groups plays an essential role in infant gut health, with most studies targeting the initial colonization period from birth to 6 months of age. In a previous report, we demonstrated the metabolic cross-feeding of lactate and identified keystone species specified for lactate utilization in fecal samples of 40 healthy infants. We present here the extension of our longitudinal study for the period from 6 months to 2 years, with a focus on the colonization of functional groups involved in lactate metabolism and butyrate production. We captured the dynamic changes of the gut microbiota and reported a switch in the predominant lactate-producing and lactate-utilizing bacteria, from Veillonella producing propionate in the first year to Anaerobutyrycum hallii producing butyrate in the second year of life. The significant increase in butyrate producers and fecal butyrate concentration was also pinpointed to the weaning period between 6 and 10 months. Correlation analyses further suggested, for the first time, the metabolic cross-feeding of hydrogen in infants. In conclusion, our longitudinal study of 40 Swiss infants provides important insights into the colonization of functional groups involved in lactate metabolism and butyrate production in the first 2 years of life.
Collapse
Affiliation(s)
- Van T Pham
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland.,Division of Gastroenterology and Nutrition, University Children's Hospital Zurich, Zurich, Switzerland
| | - Anna Greppi
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| | - Christophe Chassard
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| | - Christian Braegger
- Division of Gastroenterology and Nutrition, University Children's Hospital Zurich, Zurich, Switzerland
| | - Christophe Lacroix
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| |
Collapse
|
41
|
Moreno-Yruela C, Bæk M, Monda F, Olsen CA. Chiral Posttranslational Modification to Lysine ε-Amino Groups. Acc Chem Res 2022; 55:1456-1466. [PMID: 35500056 DOI: 10.1021/acs.accounts.2c00115] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
ConspectusThe sophistication of proteomic analysis has revealed that protein lysine residues are posttranslationally modified by a variety of acyl groups. Protein lysine acetylation regulates metabolism, gene expression, and microtubule formation and has been extensively studied; however, the understanding of the biological significance of other acyl posttranslational modifications (PTMs) is still in its infancy. The acylation of lysine residues is mediated either by acyltransferase "writer" enzymes or by nonenzymatic mechanisms and hydrolase enzymes, termed "erasers", that cleave various acyl PTMs to reverse the modified state. We have studied the human lysine deacylase enzymes, comprising the 11 Zn2+-dependent histone deacetylases (HDACs) and the 7 NAD+-consuming sirtuins (SIRTs), over the past decade. We have thus developed selective inhibitors and molecular probes and have studied the acyl substrate scope of each enzyme using chemically synthesized peptide substrates and photo-cross-linking probes. Recently, we have turned our attention to PTMs containing a stereogenic center, such as ε-N-β-hydroxybutyryllysine (Kbhb) and ε-N-lactyllysine (Kla), that each comprise a pair of mirror image stereoisomers as modifications. Both modifications are found on histones, where they affect gene transcription in response to specific metabolic states, and they are found on cytosolic and mitochondrial enzymes involved in fatty acid oxidation (Kbhb) and glycolysis (Kla), respectively. Thus, chiral modifications to lysine side chains give rise to two distinct diastereomeric products, with separate metabolic origins and potentially different activities exhibited by writer and eraser enzymes. Lysine l-lactylation originates from l-lactate, a major energy carrier produced from pyruvate after glycolysis, and it is highly induced by metabolic states such as the Warburg effect. l-Lactate can possibly be activated by acyl-coenzyme A (CoA) synthetases and transferred to lysine residues by histone acetyltransferases such as p300. d-Lactylation, on the other hand, arises primarily from a nonenzymatic reaction with d-lactylglutathione, an intermediate in the glyoxalase pathway. In addition to their distinct origin, we found that both K(l-la) and K(d-la) modifications are erased by HDACs with different catalytic efficiencies. Also, K(l-bhb) and K(d-bhb) arise from different metabolites but depend on interconnected metabolic pathways, and the two stereoisomers of ε-N-3-hydroxy-3-methylglutaryllysine (Khmg) originate from a single precursor that may then be regulated differently by eraser enzymes. Distinguishing between the individual stereoisomers of PTMs is therefore of crucial importance. In the present Account, we will (1) revisit the long-standing evidence for the distinct production and dynamics of enantiomeric forms of chiral metabolites that serve as ε-N-acyllysine PTMs and (2) highlight the outstanding questions that arise from the recent literature on chiral lysine PTMs resulting from these metabolites.
Collapse
Affiliation(s)
- Carlos Moreno-Yruela
- Center for Biopharmaceuticals & Department of Drug Design of Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Michael Bæk
- Center for Biopharmaceuticals & Department of Drug Design of Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Fabrizio Monda
- Center for Biopharmaceuticals & Department of Drug Design of Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Christian A. Olsen
- Center for Biopharmaceuticals & Department of Drug Design of Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| |
Collapse
|
42
|
Brownlie EJE, Chaharlangi D, Wong EOY, Kim D, Navarre WW. Acids produced by lactobacilli inhibit the growth of commensal Lachnospiraceae and S24-7 bacteria. Gut Microbes 2022; 14:2046452. [PMID: 35266847 PMCID: PMC8920129 DOI: 10.1080/19490976.2022.2046452] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The Lactobacillaceae are an intensively studied family of bacteria widely used in fermented food and probiotics, and many are native to the gut and vaginal microbiota of humans and other animals. Various studies have shown that specific Lactobacillaceae species produce metabolites that can inhibit the colonization of fungal and bacterial pathogens, but less is known about how Lactobacillaceae affect individual bacterial species in the endogenous animal microbiota. Here, we show that numerous Lactobacillaceae species inhibit the growth of the Lachnospiraceae family and the S24-7 group, two dominant clades of bacteria within the gut. We demonstrate that inhibitory activity is a property common to homofermentative Lactobacillaceae species, but not to species that use heterofermentative metabolism. We observe that homofermentative Lactobacillaceae species robustly acidify their environment, and that acidification alone is sufficient to inhibit growth of Lachnospiraceae and S24-7 growth, but not related species from the Clostridiales or Bacteroidales orders. This study represents one of the first in-depth explorations of the dynamic between Lactobacillaceae species and commensal intestinal bacteria, and contributes valuable insight toward deconvoluting their interactions within the gut microbial ecosystem.
Collapse
Affiliation(s)
- Emma J. E. Brownlie
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Danica Chaharlangi
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Erin Oi-Yan Wong
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Deanna Kim
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - William Wiley Navarre
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada,CONTACT William Wiley Navarre Department of Molecular Genetics, University of Toronto Faculty of Medicine, 661 University Avenue, Suite 1600, Toronto, ONM5G 1M1, Canada
| |
Collapse
|
43
|
Lambré C, Barat Baviera JM, Bolognesi C, Chesson A, Cocconcelli PS, Crebelli R, Gott DM, Grob K, Lampi E, Riviere G, Steffensen I, Tlustos C, Van Loveren H, Vernis L, Zorn H, Bolton D, Bover‐Cid S, de Knecht J, Peixe L, Skandamis P, Martino C, Messens W, Tard A, Mortensen A. Evaluation of the safety and efficacy of lactic acid to reduce microbiological surface contamination on carcases from kangaroos, wild pigs, goats and sheep. EFSA J 2022; 20:e07265. [PMID: 35592024 PMCID: PMC9097752 DOI: 10.2903/j.efsa.2022.7265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Studies evaluating the safety and efficacy of lactic acid to reduce microbiological surface contamination from carcases of wild game (i.e. kangaroos and wild pigs) and small stock (i.e. goats and sheep) before chilling at the slaughterhouse were assessed. Wild pig and kangaroo hide-on carcases may have been chilled before they arrive at the slaughterhouse and are treated after removal of the hides. Lactic acid solutions (2-5%) are applied to the carcases at temperatures of up to 55°C by spraying or misting. The treatment lasts 6-7 s per carcass side. The Panel concluded that: [1] the treatment is of no safety concern, provided that the lactic acid complies with the European Union specifications for food additives; [2] based on the available evidence, it was not possible to conclude on the efficacy of spraying or misting lactic acid on kangaroo, wild pig, goats and sheep carcases; [3] treatment of the above-mentioned carcases with lactic acid may induce reduced susceptibility to the same substance, but this can be minimised; there is currently no evidence that prior exposure of food-borne pathogens to lactic acid leads to the occurrence of resistance levels that compromise antimicrobial therapy; and [4] the release of lactic acid is not of concern for the environment, assuming that wastewaters released by the slaughterhouses are treated on-site, if necessary, to counter the potentially low pH caused by lactic acid, in compliance with local rules.
Collapse
|
44
|
Kumar S, Kumar A, Huhn S, DeVine L, Cole R, Du Z, Betenbaugh M. A Proteomics Approach to Decipher a Sticky CHO Situation. Biotechnol Bioeng 2022; 119:2064-2075. [PMID: 35470426 PMCID: PMC9546176 DOI: 10.1002/bit.28108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 04/03/2022] [Accepted: 04/14/2022] [Indexed: 11/08/2022]
Abstract
Chinese hamster ovary (CHO) cells serve as protein therapeutics workhorses, so it is useful to understand what intrinsic properties make certain host cell lines and clones preferable for scale up and production of target proteins. In this study, two CHO host cell lines (H1, H2), and their respective clones were evaluated using comparative TMT‐proteomics. The clones obtained from host H1 showed increased productivity (6.8 times higher) in comparison to clones from host H2. Based on fold‐change analyses, we observed differential regulation in pathways including cell adhesion, aggregation, and cellular metabolism among others. In particular, the cellular adhesion pathway was downregulated in H1, in which podoplanin, an antiadhesion molecule, was upregulated the most in host H1 and associated clones. Phenotypically, these cells were less likely to aggregate and adhere to surfaces. In addition, enzymes involved in cellular metabolism such as isocitrate dehydrogenase (IDH) and mitochondrial‐d‐lactate dehydrogenase (
d‐LDHm) were also found to be differentially regulated. IDH plays a key role in TCA cycle and isocitrate‐alpha‐ketoglutarate cycle while
d‐LDHm aids in the elimination of toxic metabolite methylglyoxal, involved in protein degradation. These findings will enhance our efforts towards understanding why certain CHO cell lines exhibit enhanced performance and perhaps provide future cell engineering targets.
Collapse
Affiliation(s)
- Swetha Kumar
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Amit Kumar
- Process Cell Sciences, Merck & Co., Inc., Kenilworth, NJ, USA
| | - Steven Huhn
- Process Cell Sciences, Merck & Co., Inc., Kenilworth, NJ, USA
| | - Lauren DeVine
- Mass Spectrometry and Proteomics Facility, Johns Hopkins Medical Institute, Baltimore, MD, USA
| | - Robert Cole
- Mass Spectrometry and Proteomics Facility, Johns Hopkins Medical Institute, Baltimore, MD, USA
| | - Zhimei Du
- Process Cell Sciences, Merck & Co., Inc., Kenilworth, NJ, USA
| | - Michael Betenbaugh
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
| |
Collapse
|
45
|
Kolpen M, Dalby Sørensen C, Faurholt-Jepsen D, Hertz FB, Jensen PØ, Bestle MH. Endotracheal lactate reflects lower respiratory tract infections and inflammation in intubated patients. APMIS 2022; 130:507-514. [PMID: 35349738 DOI: 10.1111/apm.13224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 03/25/2022] [Indexed: 11/29/2022]
Abstract
The aim of this study was to assess L-lactate and D-lactate in endotracheal aspirate from intubated patients hospitalized at the intensive care unit and explore their use as diagnostic biomarkers for inflammation and lower respiratory tract infections (LRTI). Tracheal aspirates from 91 intubated patients were obtained at time of intubation and sent for microbiological analyses, neutrophil count, and colorimetric lactate measurements. We compared the concentration of lactate from patients with microbiological verified LRTI or clinical/radiological suspicion of LRTI with a control group. In addition, associations between inflammation and the lactate isomers were examined by correlating L-lactate and D-lactate with sputum neutrophils and clinical assessments. The concentration of L-lactate was increased in aspirates with verified or suspected LRTI (p < 0.001) relative to the control group at Day 0. Connections between L-lactate and inflammation were indicated by the correlation between neutrophils and L-lactate (p < 0.001). We found no increase in sputum D-lactate from patients with verified or suspected LRTI relative to the control group and D-lactate was not correlated with neutrophils. L-lactate was found to be a potential indicator for inflammation and LRTI at the time of intubation. An association was found between neutrophil count and L-lactate. Interestingly, the increase of L-lactate in the control group after intubation may suggest that intubation challenges the host response by inflicting tissue damage or by introducing infectious microbes.
Collapse
Affiliation(s)
- Mette Kolpen
- Department of Clinical Microbiology, Rigshospitalet, Copenhagen, Denmark
| | - Christian Dalby Sørensen
- Department of Anesthesiology and Intensive Care, Nordsjaellands Hospital, Copenhagen University Hospital, Hillerød, Denmark
| | - Daniel Faurholt-Jepsen
- Department of Infectious Diseases, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Peter Østrup Jensen
- Department of Clinical Microbiology, Rigshospitalet, Copenhagen, Denmark.,Costerton Biofilm Center, Department of Immunology and Microbiology, Faculty of Health Sciences University of Copenhagen, Copenhagen, Denmark
| | - Morten Heiberg Bestle
- Department of Anesthesiology and Intensive Care, Nordsjaellands Hospital, Copenhagen University Hospital, Hillerød, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
46
|
Chen Y, Wang H, Chen X, Ma H, Zheng J, Cao L. Serum D-lactate, a novel serological biomarker, is promising for the diagnosis of periprosthetic joint infection. BMC Musculoskelet Disord 2022; 23:292. [PMID: 35346149 PMCID: PMC8962196 DOI: 10.1186/s12891-022-05199-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/01/2022] [Indexed: 11/10/2022] Open
Abstract
Background Although many markers are used for diagnosis of periprosthetic joint infection (PJI), serological screening and diagnosis for PJI are still challenging. We evaluated the performance of serum D-lactate and compared it with ESR, coagulation-related biomarkers and synovial D-lactate for the diagnosis of PJI. Methods Consecutive patients with preoperative blood and intraoperative joint aspiration of a prosthetic hip or knee joint before revision arthroplasty were prospectively included. The diagnosis of PJI was based on the criteria of the Musculoskeletal Infection Society, and the diagnostic values of markers were estimated based on receiver operating characteristic (ROC) curves by maximizing sensitivity and specificity using optimal cutoff values. Results Of 52 patients, 26 (50%) were diagnosed with PJI, and 26 (50%) were diagnosed with aseptic failure. ROC curves showed that serum D-lactate, fibrinogen (FIB) and ESR had equal areas under the curve (AUCs) of 0.80, followed by D-dimer and fibrin degradation product, which had AUCs of 0.67 and 0.69, respectively. Serum D-lactate had the highest sensitivity of 88.46% at the optimal threshold of 1.14 mmol/L, followed by FIB and ESR, with sensitivities of 80.77% and 73.08%, respectively, while there were no significant differences in specificity (73.08%, 73.08% and 76.92%, respectively). Conclusion Serum D-lactate showed similar performance to FIB and ESR for diagnosis of PJI. The advantages of serum D-lactate are pathogen-specific, highly sensitive, minimally invasive and rapidly available making serum D-lactate useful as a point-of-care screening test for PJI.
Collapse
Affiliation(s)
- Yanyang Chen
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, No.137 South Li Yu Shan Road, Urumqi, 830054, Xinjiang, China
| | - Huhu Wang
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, No.137 South Li Yu Shan Road, Urumqi, 830054, Xinjiang, China
| | - Xiyao Chen
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, No.137 South Li Yu Shan Road, Urumqi, 830054, Xinjiang, China
| | - Hairong Ma
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, No.137 South Li Yu Shan Road, Urumqi, 830054, Xinjiang, China
| | - Jingjie Zheng
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, No.137 South Li Yu Shan Road, Urumqi, 830054, Xinjiang, China
| | - Li Cao
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, No.137 South Li Yu Shan Road, Urumqi, 830054, Xinjiang, China.
| |
Collapse
|
47
|
Manosalva C, Quiroga J, Hidalgo AI, Alarcón P, Anseoleaga N, Hidalgo MA, Burgos RA. Role of Lactate in Inflammatory Processes: Friend or Foe. Front Immunol 2022; 12:808799. [PMID: 35095895 PMCID: PMC8795514 DOI: 10.3389/fimmu.2021.808799] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 12/23/2021] [Indexed: 12/13/2022] Open
Abstract
During an inflammatory process, shift in the cellular metabolism associated with an increase in extracellular acidification are well-known features. This pH drop in the inflamed tissue is largely attributed to the presence of lactate by an increase in glycolysis. In recent years, evidence has accumulated describing the role of lactate in inflammatory processes; however, there are differences as to whether lactate can currently be considered a pro- or anti-inflammatory mediator. Herein, we review these recent advances on the pleiotropic effects of lactate on the inflammatory process. Taken together, the evidence suggests that lactate could exert differential effects depending on the metabolic status, cell type in which the effects of lactate are studied, and the pathological process analyzed. Additionally, various targets, including post-translational modifications, G-protein coupled receptor and transcription factor activation such as NF-κB and HIF-1, allow lactate to modulate signaling pathways that control the expression of cytokines, chemokines, adhesion molecules, and several enzymes associated with immune response and metabolism. Altogether, this would explain its varied effects on inflammatory processes beyond its well-known role as a waste product of metabolism.
Collapse
Affiliation(s)
- Carolina Manosalva
- Faculty of Sciences, Institute of Pharmacy, Universidad Austral de Chile, Valdivia, Chile
| | - John Quiroga
- Laboratory of Immunometabolism, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia, Chile.,Graduate School, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Alejandra I Hidalgo
- Laboratory of Immunometabolism, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia, Chile
| | - Pablo Alarcón
- Laboratory of Immunometabolism, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia, Chile
| | - Nicolás Anseoleaga
- Laboratory of Immunometabolism, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia, Chile.,Graduate School, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - María Angélica Hidalgo
- Laboratory of Immunometabolism, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia, Chile
| | - Rafael Agustín Burgos
- Laboratory of Immunometabolism, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia, Chile
| |
Collapse
|
48
|
Naghizadeh M, Dalgaard TS, Klaver L, Engberg RM. Effects of encapsulated butyrate and salinomycin on gut leakage and intestinal inflammation in broilers. Br Poult Sci 2022; 63:499-509. [PMID: 35170392 DOI: 10.1080/00071668.2022.2042483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
1. The objectives of this study were to i) compare the effects of a commercial product providing encapsulated butyrate (EB) in combination with salinomycin in diets of broilers with impaired intestinal integrity and ii) to identify easy-to-measure biomarkers to evaluate intestinal integrity and health.2. In total, 672, one-day-old male broilers (Ross 308) were randomly assigned to three experimental groups (eight replicates/group): no dietary supplement (control); EB (500 mg/kg, UltraGuard™-DUO, Devenish, Ireland); salinomycin (69 mg/kg feed, Sacox® 120). Impaired gut integrity was induced by a 10 times overdose of a commercial attenuated live vaccine against coccidiosis (Hipracox®, Hipra) on d 17 combined with a grower feed providing rye (50 g/kg diet).3. Improved intestinal integrity and functionality were reflected by reduced fluorescein isothiocyanate-dextran (FITC-D) plasma levels, reduced bacterial translocation to the liver (on d 21) and increased plasma coloration level on d 21 after dietary supplementation of salinomycin, compared to a non-supplemented control diet. Both EB and salinomycin reduced plasma levels of D-lactate (P<0.05).4. An anti-inflammatory effect of salinomycin was indicated as the transient increase in circulating monocytes observed in the EB and control group from 20 to 28 d of age was slightly, but not significantly reduced, in the salinomycin-fed group. Interestingly, greater expression of tumour necrosis factor α (TNF-α) and mucin 2 (MUC2) genes (P=0.039 and P = 0.067, respectively) were detected in the group receiving salinomycin.5. These effects may have collectively contributed to the significantly improved performance of broilers supplemented with salinomycin. The results indicated that EB at 500 mg/kg in feed, in contrast to salinomycin, neither supported gut health nor modulated intestinal integrity in broilers.
Collapse
Affiliation(s)
- Mohammad Naghizadeh
- Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
| | - Tina Sørensen Dalgaard
- Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
| | - Laura Klaver
- Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
| | - Ricarda Margarete Engberg
- Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
| |
Collapse
|
49
|
König RS, Albrich WC, Kahlert CR, Bahr LS, Löber U, Vernazza P, Scheibenbogen C, Forslund SK. The Gut Microbiome in Myalgic Encephalomyelitis (ME)/Chronic Fatigue Syndrome (CFS). Front Immunol 2022; 12:628741. [PMID: 35046929 PMCID: PMC8761622 DOI: 10.3389/fimmu.2021.628741] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 12/09/2021] [Indexed: 12/16/2022] Open
Abstract
Myalgic encephalomyelitis (ME) or Chronic Fatigue Syndrome (CFS) is a neglected, debilitating multi-systemic disease without diagnostic marker or therapy. Despite evidence for neurological, immunological, infectious, muscular and endocrine pathophysiological abnormalities, the etiology and a clear pathophysiology remains unclear. The gut microbiome gained much attention in the last decade with manifold implications in health and disease. Here we review the current state of knowledge on the interplay between ME/CFS and the microbiome, to identify potential diagnostic or interventional approaches, and propose areas where further research is needed. We iteratively selected and elaborated on key theories about a correlation between microbiome state and ME/CFS pathology, developing further hypotheses. Based on the literature we hypothesize that antibiotic use throughout life favours an intestinal microbiota composition which might be a risk factor for ME/CFS. Main proposed pathomechanisms include gut dysbiosis, altered gut-brain axis activity, increased gut permeability with concomitant bacterial translocation and reduced levels of short-chain-fatty acids, D-lactic acidosis, an abnormal tryptophan metabolism and low activity of the kynurenine pathway. We review options for microbiome manipulation in ME/CFS patients including probiotic and dietary interventions as well as fecal microbiota transplantations. Beyond increasing gut permeability and bacterial translocation, specific dysbiosis may modify fermentation products, affecting peripheral mitochondria. Considering the gut-brain axis we strongly suspect that the microbiome may contribute to neurocognitive impairments of ME/CFS patients. Further larger studies are needed, above all to clarify whether D-lactic acidosis and early-life antibiotic use may be part of ME/CFS etiology and what role changes in the tryptophan metabolism might play. An association between the gut microbiome and the disease ME/CFS is plausible. As causality remains unclear, we recommend longitudinal studies. Activity levels, bedridden hours and disease progression should be compared to antibiotic exposure, drug intakes and alterations in the composition of the microbiota. The therapeutic potential of fecal microbiota transfer and of targeted dietary interventions should be systematically evaluated.
Collapse
Affiliation(s)
- Rahel S König
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Werner C Albrich
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Christian R Kahlert
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland.,Division of Infectious Diseases and Hospital Epidemiology, Children's Hospital of Eastern Switzerland, St. Gallen, Switzerland
| | - Lina Samira Bahr
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,Experimental and Clinical Research Center, A Joint Cooperation of Max-Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Ulrike Löber
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,Experimental and Clinical Research Center, A Joint Cooperation of Max-Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Berlin, Germany.,Host-Microbiome Factors in Cardiovascular Disease, Max Delbruck Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
| | - Pietro Vernazza
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Carmen Scheibenbogen
- Institute for Medical Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Sofia K Forslund
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,Experimental and Clinical Research Center, A Joint Cooperation of Max-Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Berlin, Germany.,Host-Microbiome Factors in Cardiovascular Disease, Max Delbruck Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany.,European Molecular Biology Laboratory, Structural and Computational Biology Unit, Heidelberg, Germany
| |
Collapse
|
50
|
Zhang Z, Zhang G, Zhang S, Zhao J. Fructooligosaccharide Reduces Weanling Pig Diarrhea in Conjunction with Improving Intestinal Antioxidase Activity and Tight Junction Protein Expression. Nutrients 2022; 14:512. [PMID: 35276872 PMCID: PMC8838560 DOI: 10.3390/nu14030512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 01/20/2022] [Accepted: 01/24/2022] [Indexed: 11/17/2022] Open
Abstract
This study was to illustrate the effects of fructooligosaccharide (FOS) on the antioxidant capacity, intestinal barrier function, and microbial community of weanling pigs. Results showed that FOS reduced the incidence of diarrhea (6.5 vs. 10.8%) of pigs (p < 0.05) but did not affect growth performance when compared with the control group. A diet supplemented with FOS increased ileal mRNA expression of occludin (1.7 vs. 1.0), claudin-1 (1.9 vs. 1.0), claudin-2 (1.8 vs. 1.0), and claudin-4 (1.7 vs. 1.0), as well as colonic mRNA expression of ZO-1 (1.6 vs. 1.0), claudin-1 (1.7 vs. 1.0), occludin (1.9 vs. 1.0), and pBD-1 (1.5 vs. 1.0) when compared with the control group (p < 0.05). FOS supplementation improved the anti-oxidase activity and expression of nuclear factor erythroid-2 related factor 2 (Nrf2), and decreased concentrations of D-lactate (3.05 U/L vs. 2.83 U/L) and TNF-α (59.1 pg/mL vs. 48.0 pg/mL) in the serum when compared with the control group (p < 0.05). In addition, FOS increased Sharpea, Megasphaera, and Bacillus populations in the gut when compared with the control group (p < 0.05). Association analysis indicated that mRNA expression of occludin and claudin-1 in the ileal mucosa were correlated positively with populations of Sharpea and Bacillus (p < 0.05). Furthermore, mRNA expression of occludin and claudin-1 in the colonic mucosa were correlated positively with abundances of Sharpea, Lactobocillus, and Bifidobacterium (p < 0.05). In conclusion, FOS activated Nrf2 signaling and increased the expression of specific tight junction proteins, which were associated with reduced diarrhea incidence.
Collapse
Affiliation(s)
| | | | | | - Jinbiao Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (Z.Z.); (G.Z.); (S.Z.)
| |
Collapse
|