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Seemann L, Frahm J, Kersten S, Bühler S, Meyer U, Visscher C, Huber K, Dänicke S. Dietary L-carnitine supplementation modifies blood parameters of mid-lactating dairy cows during standardized lipopolysaccharide-induced inflammation. Front Immunol 2024; 15:1390137. [PMID: 38807585 PMCID: PMC11130594 DOI: 10.3389/fimmu.2024.1390137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 04/16/2024] [Indexed: 05/30/2024] Open
Abstract
L-carnitine, available as feed additive, is essential for the beta-oxidation of free fatty acids in the mitochondrial matrix. It provides energy to immune cells and may positively impact the functionality of leukocytes during the acute phase response, a situation of high energy demand. To test this hypothesis, German Holstein cows were assigned to a control group (CON, n = 26) and an L-carnitine supplemented group (CAR, n = 27, rumen-protected L-carnitine product: 125 g/cow/d, corresponded to total L-carnitine intake: 25 g/cow/d, supplied with concentrate) and received an intravenous bolus injection of lipopolysaccharides (LPS, 0.5 µg/kg body weight, E. coli) on day 111 postpartum as a model of standardized systemic inflammation. Blood samples were collected from day 1 ante injectionem until day 14 post injectionem (pi), with frequent sampling through an indwelling venous catheter from 0.5 h pi to 12 h pi. All parameters of the white blood cell count responded significantly to LPS, while only a few parameters were affected by L-carnitine supplementation. The mean eosinophil count, as well as the percentage of basophils were significantly higher in CAR than in CON over time, which may be due to an increased membrane stability. However, phagocytosis and production of reactive oxygen species by leukocytes remained unchanged following L-carnitine supplementation. In conclusion, although supplementation with 25 g L-carnitine per cow and day resulted in increased proportions of specific leukocyte populations, it had only minor effects on the functional parameters studied in mid-lactating dairy cows during LPS-induced inflammation, and there was no evidence of direct improvement of immune functionality.
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Affiliation(s)
- Leonie Seemann
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Braunschweig, Germany
| | - Jana Frahm
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Braunschweig, Germany
| | - Susanne Kersten
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Braunschweig, Germany
| | - Susanne Bühler
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Braunschweig, Germany
| | - Ulrich Meyer
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Braunschweig, Germany
| | - Christian Visscher
- Institute of Animal Nutrition, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Korinna Huber
- Department of Functional Anatomy of Livestock, Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
| | - Sven Dänicke
- Institute of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Braunschweig, Germany
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Yang J, Zhang T, Zhang L, Su X. A non-equilibrium dissipation system with tunable molecular fuel flux. NANOSCALE 2024; 16:4219-4228. [PMID: 38334944 DOI: 10.1039/d3nr06136a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Cells convert macromolecule fuel into small molecule fuel through energy pathways, including glycolysis, the citric acid cycle, and oxidative phosphorylation. These processes drive vital dissipative networks or structures. Distinct from direct fuel (DF) utilization (directly acquire and utilize small molecule fuel), this macromolecule fuel mechanism is referred to as indirect fuel (IF) utilization, wherein the generation rate of small molecule fuel (fuel flux) can be effectively regulated. Here, we reported a bionic dissipation system with tunable fuel flux based on dynamic DNA nanotechnology. By regulating the rates of strand displacement and enzymatic reactions, we controlled the fuel flux and further tuned the strength of non-equilibrium transient states. Interestingly, we found that within a certain range, the fuel flux was positively correlated with the strength of the transient state. Once saturation was reached, it became negatively correlated. An appropriate fuel flux supports the maintenance of high-intensity non-equilibrium transients. Furthermore, we harnessed the dissipation system with tunable molecular fuel flux to regulate the dynamic assembly and disassembly of AuNPs. Different fuel fluxes resulted in varying assembly and disassembly rates and strengths for AuNPs, accomplishing a biomimetic process of regulating microtubule assembly through the control of fuel flux within living organisms. This work demonstrated a dissipation system with tunable molecular fuel flux, and we envision that this system holds significant potential for development in various fields such as biomimetics, synthetic biology, smart materials, biosensing, and artificial cells.
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Affiliation(s)
- Jiayu Yang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Tengfang Zhang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Linghao Zhang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Xin Su
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.
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3
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Hu S, Yang Z, Li L, Yan Q, Hu Y, Zhou F, Tan Y, Pei G. Salvianolic Acid B Alleviates Liver Injury by Regulating Lactate-Mediated Histone Lactylation in Macrophages. Molecules 2024; 29:236. [PMID: 38202819 PMCID: PMC10780734 DOI: 10.3390/molecules29010236] [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: 10/22/2023] [Revised: 12/25/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Salvianolic acid B (Sal B) is the primary water-soluble bioactive constituent derived from the roots of Salvia miltiorrhiza Bunge. This research was designed to reveal the potential mechanism of Sal B anti-liver injury from the perspective of macrophages. In our lipopolysaccharide-induced M1 macrophage model, Sal B showed a clear dose-dependent gradient of inhibition of the macrophage trend of the M1 type. Moreover, Sal B downregulated the expression of lactate dehydrogenase A (LDHA), while the overexpression of LDHA impaired Sal B's effect of inhibiting the trend of macrophage M1 polarization. Additionally, this study revealed that Sal B exhibited inhibitory effects on the lactylation process of histone H3 lysine 18 (H3K18la). In a ChIP-qPCR analysis, Sal B was observed to drive a reduction in H3K18la levels in the promoter region of the LDHA, NLRP3, and IL-1β genes. Furthermore, our in vivo experiments showed that Sal B has a good effect on alleviating CCl4-induced liver injury. An examination of liver tissues and the Kupffer cells isolated from those tissues proved that Sal B affects the M1 polarization of macrophages and the level of histone lactylation. Together, our data reveal that Sal B has a potential mechanism of inhibiting the histone lactylation of macrophages by downregulating the level of LDHA in the treatment of liver injury.
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Affiliation(s)
- Shian Hu
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Zehua Yang
- Hunan Drug Inspection Center, Changsha 410000, China;
| | - Ling Li
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Qinwen Yan
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Yutong Hu
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Feng Zhou
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Yang Tan
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Gang Pei
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
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Liu X, Yu P, Xu Y, Wang Y, Chen J, Tang F, Hu Z, Zhou J, Liu L, Qiu W, Ye Y, Jia Y, Yao W, Long J, Zeng Z. Metformin induces tolerogenicity of dendritic cells by promoting metabolic reprogramming. Cell Mol Life Sci 2023; 80:283. [PMID: 37688662 PMCID: PMC10492886 DOI: 10.1007/s00018-023-04932-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/13/2023] [Accepted: 08/21/2023] [Indexed: 09/11/2023]
Abstract
Dendritic cells (DCs) can mediate immune responses or immune tolerance depending on their immunophenotype and functional status. Remodeling of DCs' immune functions can develop proper therapeutic regimens for different immune-mediated diseases. In the immunopathology of autoimmune diseases (ADs), activated DCs notably promote effector T-cell polarization and exacerbate the disease. Recent evidence indicates that metformin can attenuate the clinical symptoms of ADs due to its anti-inflammatory properties. Whether and how the therapeutic effects of metformin on ADs are associated with DCs remain unknown. In this study, metformin was added to a culture system of LPS-induced DC maturation. The results revealed that metformin shifted DC into a tolerant phenotype, resulting in reduced surface expression of MHC-II, costimulatory molecules and CCR7, decreased levels of proinflammatory cytokines (TNF-α and IFN-γ), increased level of IL-10, upregulated immunomodulatory molecules (ICOSL and PD-L) and an enhanced capacity to promote regulatory T-cell (Treg) differentiation. Further results demonstrated that the anti-inflammatory effects of metformin in vivo were closely related to remodeling the immunophenotype of DCs. Mechanistically, metformin could mediate the metabolic reprogramming of DCs through FoxO3a signaling pathways, including disturbing the balance of fatty acid synthesis (FAS) and fatty acid oxidation (FAO), increasing glycolysis but inhibiting the tricarboxylic acid cycle (TAC) and pentose phosphate pathway (PPP), which resulted in the accumulation of fatty acids (FAs) and lactic acid, as well as low anabolism in DCs. Our findings indicated that metformin could induce tolerance in DCs by reprogramming their metabolic patterns and play anti-inflammatory roles in vitro and in vivo.
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Affiliation(s)
- Xianmei Liu
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
- Department of Interventional Radiology, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, People's Republic of China
| | - Peng Yu
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Yujun Xu
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Yun Wang
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Jin Chen
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Fuzhou Tang
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Zuquan Hu
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, 550004, Guizhou, People's Republic of China
- State Key Laboratory of Functions & Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550004, People's Republic of China
| | - Jing Zhou
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Lina Liu
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Wei Qiu
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Yuannong Ye
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Yi Jia
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China
| | - Weijuan Yao
- Hemorheology Center, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, People's Republic of China.
| | - Jinhua Long
- Department of Head & Neck, Affiliated Tumor Hospital of Guizhou Medical University, Guiyang, 550004, People's Republic of China.
| | - Zhu Zeng
- School of Basic Medical Sciences/School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, People's Republic of China.
- Key Laboratory of Infectious Immunity and Antibody Engineering in Guizhou Province/Engineering Center of Cellular Immunotherapy in Guizhou Province, Guiyang, 550025, People's Republic of China.
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, 550004, Guizhou, People's Republic of China.
- State Key Laboratory of Functions & Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550004, People's Republic of China.
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Rong Y, Dong F, Zhang G, Tang M, Zhao X, Zhang Y, Tao P, Cai H. The crosstalking of lactate-Histone lactylation and tumor. Proteomics Clin Appl 2023; 17:e2200102. [PMID: 36853081 DOI: 10.1002/prca.202200102] [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: 11/30/2022] [Revised: 02/17/2023] [Accepted: 02/23/2023] [Indexed: 03/01/2023]
Abstract
Lactate was once considered to be a by-product of energy metabolism, but its unique biological value was only gradually explored with the advent of the Warburg effect. As an end product of glycolysis, lactate can act as a substrate for energy metabolism, a signal transduction molecule, a regulator of the tumor microenvironment and immune cells, and a regulator of the deubiquitination of specific enzymes, and is involved in various biological aspects of tumor regulation, including energy shuttling, growth and invasion, angiogenesis and immune escape. Furthermore, we describe a novel lactate-dependent epigenetic modification, namely histone lactylation modification, and review the progress of its study in tumors, mainly involving the reprogramming of tumor phenotypes, regulation of related gene expression, mediation of the glycolytic process in tumor stem cells (CSCs) and influence on the tumor immune microenvironment. The study of epigenetic regulation of tumor genes by histone modification is still in its infancy, and we expect that by summarizing the effects of lactate and histone modification on tumor and related gene regulation, we will clarify the scientific significance of future histone modification studies and the problems to be solved, and open up new fields for targeted tumor therapy.
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Affiliation(s)
- Yao Rong
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, China
- General Surgery Clinical Medical Center, Gansu Provincial Hospital, Lanzhou, China
- Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Gansu, China
- NHC Key Laboratory of Diagnosis and Therapy of Gastrointestinal Tumor, Gansu Provincial Hospital, Lanzhou, China
| | - Fengyuan Dong
- Geriatrics Department, Lianyungang First People's Hospital, Lianyugang, China
| | - Guiqian Zhang
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, China
- General Surgery Clinical Medical Center, Gansu Provincial Hospital, Lanzhou, China
- Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Gansu, China
- NHC Key Laboratory of Diagnosis and Therapy of Gastrointestinal Tumor, Gansu Provincial Hospital, Lanzhou, China
| | - Mingzheng Tang
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, China
- General Surgery Clinical Medical Center, Gansu Provincial Hospital, Lanzhou, China
- Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Gansu, China
- NHC Key Laboratory of Diagnosis and Therapy of Gastrointestinal Tumor, Gansu Provincial Hospital, Lanzhou, China
| | - Xiashuang Zhao
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, China
- General Surgery Clinical Medical Center, Gansu Provincial Hospital, Lanzhou, China
- Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Gansu, China
- NHC Key Laboratory of Diagnosis and Therapy of Gastrointestinal Tumor, Gansu Provincial Hospital, Lanzhou, China
| | - Yan Zhang
- Cadre Ward of General Surgery Department, Gansu Provincial Hospital, Lanzhou, China
| | - Pengxian Tao
- Cadre Ward of General Surgery Department, Gansu Provincial Hospital, Lanzhou, China
| | - Hui Cai
- General Surgery Clinical Medical Center, Gansu Provincial Hospital, Lanzhou, China
- Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Gansu, China
- NHC Key Laboratory of Diagnosis and Therapy of Gastrointestinal Tumor, Gansu Provincial Hospital, Lanzhou, China
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Mirveis Z, Howe O, Cahill P, Patil N, Byrne HJ. Monitoring and modelling the glutamine metabolic pathway: a review and future perspectives. Metabolomics 2023; 19:67. [PMID: 37482587 PMCID: PMC10363518 DOI: 10.1007/s11306-023-02031-9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/03/2023] [Indexed: 07/25/2023]
Abstract
BACKGROUND Analysis of the glutamine metabolic pathway has taken a special place in metabolomics research in recent years, given its important role in cell biosynthesis and bioenergetics across several disorders, especially in cancer cell survival. The science of metabolomics addresses the intricate intracellular metabolic network by exploring and understanding how cells function and respond to external or internal perturbations to identify potential therapeutic targets. However, despite recent advances in metabolomics, monitoring the kinetics of a metabolic pathway in a living cell in situ, real-time and holistically remains a significant challenge. AIM This review paper explores the range of analytical approaches for monitoring metabolic pathways, as well as physicochemical modeling techniques, with a focus on glutamine metabolism. We discuss the advantages and disadvantages of each method and explore the potential of label-free Raman microspectroscopy, in conjunction with kinetic modeling, to enable real-time and in situ monitoring of the cellular kinetics of the glutamine metabolic pathway. KEY SCIENTIFIC CONCEPTS Given its important role in cell metabolism, the ability to monitor and model the glutamine metabolic pathways are highlighted. Novel, label free approaches have the potential to revolutionise metabolic biosensing, laying the foundation for a new paradigm in metabolomics research and addressing the challenges in monitoring metabolic pathways in living cells.
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Affiliation(s)
- Zohreh Mirveis
- FOCAS Research Institute, Technological University Dublin, City Campus, Camden Row, Dublin 8, Ireland.
- School of Physics and Optometric & Clinical Sciences, Technological University Dublin, City Campus, Grangegorman, Dublin 7, Ireland.
| | - Orla Howe
- School of Biological, Health and Sport Sciences, Technological University Dublin, City Campus, Grangegorman, Dublin 7, Ireland
| | - Paul Cahill
- School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Nitin Patil
- FOCAS Research Institute, Technological University Dublin, City Campus, Camden Row, Dublin 8, Ireland
- School of Physics and Optometric & Clinical Sciences, Technological University Dublin, City Campus, Grangegorman, Dublin 7, Ireland
| | - Hugh J Byrne
- FOCAS Research Institute, Technological University Dublin, City Campus, Camden Row, Dublin 8, Ireland
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Zhang Y, Shen W, Ding J, Gao X, Wu X, Zhu J. Comparative Transcriptome Analysis of Head Kidney of Aeromonas hydrophila-infected Hypoxia-tolerant and Normal Large Yellow Croaker. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2022; 24:1039-1054. [PMID: 36129638 DOI: 10.1007/s10126-022-10158-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
The large yellow croaker (Larimichthys crocea) is one of the most economically important marine fish on the southeast coast of China and much of its yield is usually lost by hypoxia. To address this problem and lay a foundation for culturing a new strain of large yellow croaker with hypoxia tolerance, our research group screened a hypoxia-tolerant population of L. crocea. Surprisingly, we also found that hypoxia-tolerant population exhibited higher survival when infected with pathogens compared to the normal population during the farming operation. In order to understand the mechanism underlying the higher survival rate of the hypoxia-tolerant population and enrich the head kidney immune mechanism of L. crocea infected with pathogens, we compared and analyzed the head kidney transcriptome of the hypoxia-tolerant and normal individuals under Aeromonas hydrophila infection. We obtained 159.68 GB high-quality reads, of which more than 87.61% were successfully localized to the reference genome of L. crocea. KEGG analysis revealed differentially expressed genes in the signaling pathways involving immunity, cell growth and death, transport and catabolism, and metabolism. Among these, the toll-like receptor signaling pathway, Nod-like receptor signaling pathway, cytokine-cytokine receptor interaction, phagosome, apoptosis, and OXPHOS pathways were enriched in both groups after infection compared to before, and were enriched in infected tolerant individuals compared to normal individuals. In addition, we found that the expression of hif1α and its downstream genes were higher in the hypoxia-sensitive group of fish than in the normal group. In conclusion, our results showed some signaling pathways and hub genes, which may participate in A. hydrophila defense in the head kidney of two populations, and may contribute to the higher survival rate in the hypoxia-tolerant population. Overall, these findings increase our understanding of the defense mechanism within the head kidney of L. crocea under A. hydrophila infection, and suggest a preliminary hypothesis for why hypoxia-tolerant individuals may exhibit a higher survival rates after infection. Our study provides scientific evidence for the breeding of a new hypoxia-tolerant strain of L. crocea for aquaculture.
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Affiliation(s)
- Yibo Zhang
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, College of Marine Sciences, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Weiliang Shen
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China.
| | - Jie Ding
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, College of Marine Sciences, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Xinming Gao
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, College of Marine Sciences, Ningbo University, Ningbo, Zhejiang, China
| | - Xiongfei Wu
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Junquan Zhu
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, College of Marine Sciences, Ningbo University, Ningbo, Zhejiang, China
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The Combination of Rhodosin and MMF Prolongs Cardiac Allograft Survival by Inhibiting DC Maturation by Promoting Mitochondrial Fusion. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7260305. [PMID: 35855862 PMCID: PMC9288296 DOI: 10.1155/2022/7260305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/17/2022] [Accepted: 06/20/2022] [Indexed: 11/17/2022]
Abstract
Despite being the gold-standard treatment for end-stage heart disease, heart transplantation is associated with acute cardiac rejection within 1 year of transplantation. The continuous application of immunosuppressants may cause side effects such as hepatic and renal toxicity, infection, and malignancy. Developing new pharmaceutical strategies to alleviate acute rejection after heart transplantation effectively and safely is of critical importance. In this study, we performed a murine model of MHC-full mismatch cardiac transplantation and showed that the combination of Rhodosin (Rho) and mycophenolate mofetil (MMF) could prevent acute rejection and oxidative stress injury and prolong the survival time of murine heart transplants. The use of Rho plus MMF in allografts improved the balance of Tregs/Teff cells, which had a protective effect on allotransplantation. We also isolated bone marrow-derived dendritic cells (BMDCs) and determined that Rho inhibited DC maturation by promoting mitochondrial fusion mainly through the mitochondrial fusion-related protein MFN1. Herein, we demonstrated that Rho, an active ingredient isolated from the plant Rhodiola rosea with antioxidant and anti-inflammatory activities, could efficiently alleviate acute rejection and significantly prolong murine heart allograft survival when used with a low dose of MMF. More importantly, we found that Rho restrained DC maturation by promoting mitochondrial fusion and decreasing reactive oxygen species (ROS) levels, which then alleviated acute rejection in murine cardiac transplantation. Interestingly, as a novel immunosuppressant, Rho has almost no side effects compared with other traditional immunosuppressants. Taken together, these results suggest that Rho has good clinical auxiliary applications as an effective immunosuppressant and antioxidant, and this study provides an efficient strategy to overcome the side effects of immunosuppressive agents that are currently used in organ transplantation.
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CD14 Is Involved in the Interferon Response of Human Macrophages to Rubella Virus Infection. Biomedicines 2022; 10:biomedicines10020266. [PMID: 35203475 PMCID: PMC8869353 DOI: 10.3390/biomedicines10020266] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/11/2022] [Accepted: 01/19/2022] [Indexed: 02/04/2023] Open
Abstract
Macrophages (MΦ) as specialized immune cells are involved in rubella virus (RuV) pathogenesis and enable the study of its interaction with the innate immune system. A similar replication kinetics of RuV in the two human MΦ types, the pro-inflammatory M1-like (or GM-MΦ) and anti-inflammatory M2-like (M-MΦ), was especially in M-MΦ accompanied by a reduction in the expression of the innate immune receptor CD14. Similar to RuV infection, exogenous interferon (IFN) β induced a loss of glycolytic reserve in M-MΦ, but in contrast to RuV no noticeable influence on CD14 expression was detected. We next tested the contribution of CD14 to the generation of cytokines/chemokines during RuV infection of M-MΦ through the application of anti-CD14 blocking antibodies. Blockage of CD14 prior to RuV infection enhanced generation of virus progeny. In agreement with this observation, the expression of IFNs was significantly reduced in comparison to the isotype control. Additionally, the expression of TNF-α was slightly reduced, whereas the chemokine CXCL10 was not altered. In conclusion, the observed downmodulation of CD14 during RuV infection of M-MΦ appears to contribute to virus-host-adaptation through a reduction of the IFN response.
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10
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Zhao XF, Huffman LD, Hafner H, Athaiya M, Finneran MC, Kalinski AL, Kohen R, Flynn C, Passino R, Johnson CN, Kohrman D, Kawaguchi R, Yang LJS, Twiss JL, Geschwind DH, Corfas G, Giger RJ. The injured sciatic nerve atlas (iSNAT), insights into the cellular and molecular basis of neural tissue degeneration and regeneration. eLife 2022; 11:80881. [PMID: 36515985 PMCID: PMC9829412 DOI: 10.7554/elife.80881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 11/30/2022] [Indexed: 12/15/2022] Open
Abstract
Upon trauma, the adult murine peripheral nervous system (PNS) displays a remarkable degree of spontaneous anatomical and functional regeneration. To explore extrinsic mechanisms of neural repair, we carried out single-cell analysis of naïve mouse sciatic nerve, peripheral blood mononuclear cells, and crushed sciatic nerves at 1 day, 3 days, and 7 days following injury. During the first week, monocytes and macrophages (Mo/Mac) rapidly accumulate in the injured nerve and undergo extensive metabolic reprogramming. Proinflammatory Mo/Mac with a high glycolytic flux dominate the early injury response and rapidly give way to inflammation resolving Mac, programmed toward oxidative phosphorylation. Nerve crush injury causes partial leakiness of the blood-nerve barrier, proliferation of endoneurial and perineurial stromal cells, and entry of opsonizing serum proteins. Micro-dissection of the nerve injury site and distal nerve, followed by single-cell RNA-sequencing, identified distinct immune compartments, triggered by mechanical nerve wounding and Wallerian degeneration, respectively. This finding was independently confirmed with Sarm1-/- mice, in which Wallerian degeneration is greatly delayed. Experiments with chimeric mice showed that wildtype immune cells readily enter the injury site in Sarm1-/- mice, but are sparse in the distal nerve, except for Mo. We used CellChat to explore intercellular communications in the naïve and injured PNS and report on hundreds of ligand-receptor interactions. Our longitudinal analysis represents a new resource for neural tissue regeneration, reveals location- specific immune microenvironments, and reports on large intercellular communication networks. To facilitate mining of scRNAseq datasets, we generated the injured sciatic nerve atlas (iSNAT): https://cdb-rshiny.med.umich.edu/Giger_iSNAT/.
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Affiliation(s)
- Xiao-Feng Zhao
- Department of Cell and Developmental Biology, University of Michigan-Ann ArborAnn ArborUnited States
| | - Lucas D Huffman
- Department of Cell and Developmental Biology, University of Michigan-Ann ArborAnn ArborUnited States,Neuroscience Graduate Program, University of Michigan–Ann ArborAnn ArborUnited States
| | - Hannah Hafner
- Department of Cell and Developmental Biology, University of Michigan-Ann ArborAnn ArborUnited States
| | - Mitre Athaiya
- Department of Cell and Developmental Biology, University of Michigan-Ann ArborAnn ArborUnited States,Neuroscience Graduate Program, University of Michigan–Ann ArborAnn ArborUnited States
| | - Matthew C Finneran
- Department of Cell and Developmental Biology, University of Michigan-Ann ArborAnn ArborUnited States,Neuroscience Graduate Program, University of Michigan–Ann ArborAnn ArborUnited States
| | - Ashley L Kalinski
- Department of Cell and Developmental Biology, University of Michigan-Ann ArborAnn ArborUnited States
| | - Rafi Kohen
- Department of Cell and Developmental Biology, University of Michigan-Ann ArborAnn ArborUnited States,Neuroscience Graduate Program, University of Michigan–Ann ArborAnn ArborUnited States
| | - Corey Flynn
- Department of Cell and Developmental Biology, University of Michigan-Ann ArborAnn ArborUnited States
| | - Ryan Passino
- Department of Cell and Developmental Biology, University of Michigan-Ann ArborAnn ArborUnited States
| | - Craig N Johnson
- Department of Cell and Developmental Biology, University of Michigan-Ann ArborAnn ArborUnited States
| | - David Kohrman
- Kresge Hearing Institute, University of Michigan–Ann ArborAnn ArborUnited States
| | - Riki Kawaguchi
- Departments of Psychiatry and Neurology, University of California, Los AngelesLos AngelesUnited States
| | - Lynda JS Yang
- Department of Neurosurgery, University of Michigan-Ann ArborAnn ArborUnited States
| | - Jeffery L Twiss
- Department of Biological Sciences, University of South CarolinaColumbiaUnited States
| | - Daniel H Geschwind
- Department of Neurology, Program in Neurogenetics, David Geffen School of Medicine, University of California, Los AngelesLos AngelesUnited States,Department of Human Genetics,David Geffen School of Medicine, University of California, Los AngelesLos AngelesUnited States,Institute of Precision Health, University of California, Los AngelesLos AngelesUnited States
| | - Gabriel Corfas
- Neuroscience Graduate Program, University of Michigan–Ann ArborAnn ArborUnited States,Kresge Hearing Institute, University of Michigan–Ann ArborAnn ArborUnited States,Department of Neurology, University of Michigan–Ann ArborAnn ArborUnited States
| | - Roman J Giger
- Department of Cell and Developmental Biology, University of Michigan-Ann ArborAnn ArborUnited States,Neuroscience Graduate Program, University of Michigan–Ann ArborAnn ArborUnited States,Department of Neurology, University of Michigan–Ann ArborAnn ArborUnited States
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Wang R, Li DF, Hu YF, Liao Q, Jiang TT, Olatunji OJ, Yang K, Zuo J. Qing-Luo-Yin Alleviated Monocytes/Macrophages-Mediated Inflammation in Rats with Adjuvant-Induced Arthritis by Disrupting Their Interaction with (Pre)-Adipocytes Through PPAR-γ Signaling. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:3105-3118. [PMID: 34295151 PMCID: PMC8291661 DOI: 10.2147/dddt.s320599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/09/2021] [Indexed: 12/29/2022]
Abstract
Background The Chinese herbal formula Qing-Luo-Yin (QLY) has been successfully used in rheumatoid arthritis treatment for decades. It exhibits notable immune and metabolism regulatory properties. Thereby, we investigated its effects on the interplay between (pre)-adipocytes and monocytes/macrophages under adjuvant-induced arthritis (AIA) circumstances. Methods Fat reservoir and histological characteristics of white fat tissues (WAT) in AIA rats receiving QLY treatment were examined upon sacrifice. Metabolic parameters, clinical indicators, and oxidative stress levels were determined using corresponding kits, while mRNA/protein expression was investigated by PCR and immunoblotting methods. M1 macrophage distribution in WAT was assessed by flow cytometry. The effects of QLY on (pre)-adipocytes were further validated by experiments in vitro. Results Compared with normal healthy controls, body weight and circulating triglyceride were declined in AIA rats, but serological levels of free fatty acids and low-density lipoprotein cholesterol were increased. mRNA IL-1β and iNOS expression in white blood cells and rheumatoid factor, C-reactive protein, anti-cyclic citrullinated peptide antibody, MCP-1 and IL-1β production in serum/WAT were up-regulated. Obvious CD86+CD11b+ macrophages were enriched in WAT. Meanwhile, expression of PPAR-γ and SIRT1 and secretion of adiponectin and leptin in these AIA rats were impaired. QLY restored all these pathological changes. Of note, it significantly stimulated PPAR-γ expression in the treated AIA rats. Accordingly, QLY-containing serum promoted SCD-1, PPAR-γ, and SIRT1 expression in pre-adipocytes cultured in vitro. AIA rats-derived peripheral blood mononuclear cells suppressed PPAR-γ and SCD-1 expression in co-cultured pre-adipocytes, but serum from AIA rats receiving QLY treatment did not exhibit this potential. The changes on PPAR-γ expression eventually resulted in varied adipocyte differentiation statuses. PPAR-γ selective inhibitor T0070907 abrogated QLY-induced MCP-1 production decline in LPS-primed pre-adipocytes and reduced adiponectin secretion. Conclusion QLY was potent in promoting PPAR-γ expression and consequently disrupted inflammatory feedback in WAT by altering monocytes/macrophages polarization and adipocytes differentiation.
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Affiliation(s)
- Rui Wang
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China.,Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China
| | - Dan-Feng Li
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China.,Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China
| | - Yi-Fang Hu
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China.,Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China
| | - Qiang Liao
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China.,Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China
| | - Tian-Tian Jiang
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China.,Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China
| | - Opeyemi Joshua Olatunji
- Faculty of Traditional Thai Medicine, Prince of Songkla University, Hat Yai, 90112, Thailand
| | - Kui Yang
- Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China.,Department of Pharmacy, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China
| | - Jian Zuo
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People's Republic of China.,Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People's Republic of China.,Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, 241000, People's Republic of China
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