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Machado Kayser J, Petry F, Alijar Souza M, Santin Zanatta Schindler M, Vidor Morgan L, Zimmermann Prado Rodrigues G, Mazon SC, Silva Aguiar GP, Galdino da Rocha Pitta M, da Rocha Pitta I, Leal Xavier L, Girardi Müller L, Gehlen G, Heemann Betti A. Antidepressant effect of PT-31, an α₂-adrenoceptor agonist, on lipopolysaccharide-induced depressive-like behavior in mice. Behav Pharmacol 2024; 35:338-350. [PMID: 39051900 DOI: 10.1097/fbp.0000000000000785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Increasing evidence indicates that neuroinflammation, oxidative stress, and neurotrophic factors play a key role in the pathophysiology of major depressive disorder (MDD). In addition, the attenuation of inflammatory response has been considered a putative mechanism for MDD treatment. PT-31 is an imidazolidine derivative and a putative α₂-adrenoceptor agonist that has previously demonstrated antinociceptive activity. The present study aimed to investigate the effect of PT-31 on depressive-like behavior and lipopolysaccharide-induced neurochemical changes. To this end, mice received intraperitoneally saline or lipopolysaccharide (600 µg/kg), and 5 h postinjection animals were orally treated with saline, PT-31 (3, 10, and 30 mg/kg), or fluoxetine (30 mg/kg). Mice were subjected to the open field test (OFT) 6 and 24 h after lipopolysaccharide administration and to the tail suspension test (TST) 24 h postlipopolysaccharide. Subsequently, animals were euthanized, and brains were dissected for neurochemical analyses. The administration of lipopolysaccharide-induced sickness- and depressive-like behaviors, besides promoting an increase in myeloperoxidase activity and a reduction in brain-derived neurotrophic factor (BDNF) levels. Noteworthy, PT-31 3 mg/kg attenuated lipopolysaccharide-induced decreased locomotor activity 6 h after lipopolysaccharide in the OFT. All tested doses of PT-31 significantly reduced the immobility time of animals in the TST and attenuated lipopolysaccharide-induced increased myeloperoxidase activity in the cortex of mice. Our results demonstrate that PT-31 ameliorates behavioral changes promoted by lipopolysaccharide in OFT and TST, which is possibly mediated by attenuation of the inflammatory response.
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Affiliation(s)
- Juliana Machado Kayser
- Postgraduate Program in Toxicology and Analytical Toxicology, Health Sciences Institute, Feevale University, Novo Hamburgo
| | - Fernanda Petry
- Molecular Genetics and Ecotoxicology Laboratory, Sciences and Environmental Area, Community University of Chapecó Region (Unochapecó)
- Postgraduate Program in Environmental Sciences, Sciences and Environmental Area, Community University of Chapecó Region (Unochapecó)
| | - Maryelen Alijar Souza
- Postgraduate Program in Environmental Sciences, Sciences and Environmental Area, Community University of Chapecó Region (Unochapecó)
| | - Monica Santin Zanatta Schindler
- Postgraduate Program in Environmental Sciences, Sciences and Environmental Area, Community University of Chapecó Region (Unochapecó)
| | - Letícia Vidor Morgan
- Pharmacy Course, Health Sciences Area, Community University of Chapecó Region (Unochapecó), Chapecó
| | | | - Samara Cristina Mazon
- Molecular Genetics and Ecotoxicology Laboratory, Sciences and Environmental Area, Community University of Chapecó Region (Unochapecó)
- Postgraduate Program in Environmental Sciences, Sciences and Environmental Area, Community University of Chapecó Region (Unochapecó)
| | - Gean Pablo Silva Aguiar
- Molecular Genetics and Ecotoxicology Laboratory, Sciences and Environmental Area, Community University of Chapecó Region (Unochapecó)
- Postgraduate Program in Environmental Sciences, Sciences and Environmental Area, Community University of Chapecó Region (Unochapecó)
| | - Marina Galdino da Rocha Pitta
- Nucleus of Research in Therapeutic Innovation Suely Galdino (NUPIT SG), Biosciences Center, Federal University of Pernambuco, Recife
| | - Ivan da Rocha Pitta
- Nucleus of Research in Therapeutic Innovation Suely Galdino (NUPIT SG), Biosciences Center, Federal University of Pernambuco, Recife
| | - Léder Leal Xavier
- Postgraduate Program in Cellular and Molecular Biology, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Liz Girardi Müller
- Molecular Genetics and Ecotoxicology Laboratory, Sciences and Environmental Area, Community University of Chapecó Region (Unochapecó)
- Postgraduate Program in Environmental Sciences, Sciences and Environmental Area, Community University of Chapecó Region (Unochapecó)
| | - Günther Gehlen
- Postgraduate Program in Toxicology and Analytical Toxicology, Health Sciences Institute, Feevale University, Novo Hamburgo
- Postgraduate Program in Environmental Quality, Health Sciences Institute, Feevale University, Novo Hamburgo
| | - Andresa Heemann Betti
- Postgraduate Program in Toxicology and Analytical Toxicology, Health Sciences Institute, Feevale University, Novo Hamburgo
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Kutumova EO, Akberdin IR, Egorova VS, Kolesova EP, Parodi A, Pokrovsky VS, Zamyatnin, Jr AA, Kolpakov FA. Physiologically based pharmacokinetic model for predicting the biodistribution of albumin nanoparticles after induction and recovery from acute lung injury. Heliyon 2024; 10:e30962. [PMID: 38803942 PMCID: PMC11128879 DOI: 10.1016/j.heliyon.2024.e30962] [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: 10/24/2023] [Revised: 04/02/2024] [Accepted: 05/08/2024] [Indexed: 05/29/2024] Open
Abstract
The application of nanomedicine in the treatment of acute lung injury (ALI) has great potential for the development of new therapeutic strategies. To gain insight into the kinetics of nanocarrier distribution upon time-dependent changes in tissue permeability after ALI induction in mice, we developed a physiologically based pharmacokinetic model for albumin nanoparticles (ANP). The model was calibrated using data from mice treated with intraperitoneal LPS (6 mg/kg), followed by intravenous ANP (0.5 mg/mouse or about 20.8 mg/kg) at 0.5, 6, and 24 h. The simulation results reproduced the experimental observations and indicated that the accumulation of ANP in the lungs increased, reaching a peak 6 h after LPS injury, whereas it decreased in the liver, kidney, and spleen. The model predicted that LPS caused an immediate (within the first 30 min) dramatic increase in lung and kidney tissue permeability, whereas splenic tissue permeability gradually increased over 24 h after LPS injection. This information can be used to design new therapies targeting specific organs affected by bacterial infections and potentially by other inflammatory insults.
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Affiliation(s)
- Elena O. Kutumova
- Department of Computational Biology, Sirius University of Science and Technology, 354340, Sirius, Krasnodar Region, Russia
- Laboratory of Bioinformatics, Federal Research Center for Information and Computational Technologies, 630090, Novosibirsk, Russia
- Biosoft.Ru, Ltd., 630058, Novosibirsk, Russia
| | - Ilya R. Akberdin
- Department of Computational Biology, Sirius University of Science and Technology, 354340, Sirius, Krasnodar Region, Russia
- Biosoft.Ru, Ltd., 630058, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, 630090, Novosibirsk, Russia
| | - Vera S. Egorova
- Scientific Center for Translational Medicine, Sirius University of Science and Technology, 354340, Sirius, Krasnodar Region, Russia
| | - Ekaterina P. Kolesova
- Scientific Center for Translational Medicine, Sirius University of Science and Technology, 354340, Sirius, Krasnodar Region, Russia
| | - Alessandro Parodi
- Scientific Center for Translational Medicine, Sirius University of Science and Technology, 354340, Sirius, Krasnodar Region, Russia
| | - Vadim S. Pokrovsky
- N.N. Blokhin Medical Research Center of Oncology, 115522, Moscow, Russia
- Patrice Lumumba People's Friendship University, 117198, Moscow, Russia
| | - Andrey A. Zamyatnin, Jr
- Scientific Center for Translational Medicine, Sirius University of Science and Technology, 354340, Sirius, Krasnodar Region, Russia
- Faculty of Bioengineering and Bioinformatics and Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119234, Moscow, Russia
- Department of Biological Chemistry, Sechenov First Moscow State Medical University, 119991, Moscow, Russia
| | - Fedor A. Kolpakov
- Department of Computational Biology, Sirius University of Science and Technology, 354340, Sirius, Krasnodar Region, Russia
- Laboratory of Bioinformatics, Federal Research Center for Information and Computational Technologies, 630090, Novosibirsk, Russia
- Biosoft.Ru, Ltd., 630058, Novosibirsk, Russia
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Deng I, Bobrovskaya L. Lipopolysaccharide mouse models for Parkinson's disease research: a critical appraisal. Neural Regen Res 2022; 17:2413-2417. [PMID: 35535880 PMCID: PMC9120679 DOI: 10.4103/1673-5374.331866] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/20/2021] [Accepted: 11/30/2021] [Indexed: 12/25/2022] Open
Abstract
Parkinson's disease, the most common movement disorder, has a strong neuroinflammatory aspect. This is evident by increased pro-inflammatory cytokines in the serum, and the presence of activated microglial cells, and inflammatory cytokines in the substantia nigra of post-mortem brains as well as cerebrospinal fluid of Parkinson's disease patients. The central and peripheral neuroinflammatory aspects of Parkinson's disease can be investigated in vivo via administration of the inflammagen lipopolysaccharide, a component of the cell wall of gram-negative bacteria. In this mini-review, we will critically evaluate different routes of lipopolysaccharide administration (including intranasal systemic and stereotasic), their relevance to clinical Parkinson's disease as well as the recent findings in lipopolysaccharide mouse models. We will also share our own experiences with systemic and intrastriatal lipopolysaccharide models in C57BL/6 mice and will discuss the usefulness of lipopolysaccharide mouse models for future research in the field.
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Affiliation(s)
- Isaac Deng
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Larisa Bobrovskaya
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, Australia
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Piirsalu M, Taalberg E, Jayaram M, Lilleväli K, Zilmer M, Vasar E. Impact of a High-Fat Diet on the Metabolomics Profile of 129S6 and C57BL6 Mouse Strains. Int J Mol Sci 2022; 23:ijms231911682. [PMID: 36232982 PMCID: PMC9569783 DOI: 10.3390/ijms231911682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/24/2022] [Accepted: 09/29/2022] [Indexed: 11/29/2022] Open
Abstract
Different inbred mouse strains vary substantially in their behavior and metabolic phenotype under physiological and pathological conditions. The purpose of this study was to extend the knowledge of distinct coping strategies under challenging events in two differently adapting mouse strains: C57BL/6NTac (Bl6) and 129S6/SvEvTac (129Sv). Thus, we aimed to investigate possible similarities and differences in the body weight change, behavior, and several metabolic variables in Bl6 and 129Sv strains in response to high-fat diet (HFD) using the AbsoluteIDQ p180 kit. We found that 9 weeks of HFD induced a significant body weight gain in 129Sv, but not in Bl6 mice. Besides that, 129Sv mice displayed anxiety-like behavior in the open-field test. Metabolite profiling revealed that 129Sv mice had higher levels of circulating branched-chain amino acids, which were even more amplified by HFD. HFD also induced a decrease in glycine, spermidine, and t4-OH-proline levels in 129Sv mice. Although acylcarnitines (ACs) dominated in baseline conditions in 129Sv strain, this strain had a significantly stronger AC-reducing effect of HFD. Moreover, 129Sv mice had higher levels of lipids in baseline conditions, but HFD caused more pronounced alterations in lipid profile in Bl6 mice. Taken together, our results show that the Bl6 line is better adapted to abundant fat intake.
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Affiliation(s)
- Maria Piirsalu
- Institute of Biomedicine and Translational Medicine, Department of Physiology, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
- Center of Excellence for Genomics and Translational Medicine, University of Tartu, 50411 Tartu, Estonia
| | - Egon Taalberg
- Center of Excellence for Genomics and Translational Medicine, University of Tartu, 50411 Tartu, Estonia
- Institute of Biomedicine and Translational Medicine, Department of Biochemistry, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
| | - Mohan Jayaram
- Institute of Biomedicine and Translational Medicine, Department of Physiology, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
- Center of Excellence for Genomics and Translational Medicine, University of Tartu, 50411 Tartu, Estonia
| | - Kersti Lilleväli
- Institute of Biomedicine and Translational Medicine, Department of Physiology, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
- Center of Excellence for Genomics and Translational Medicine, University of Tartu, 50411 Tartu, Estonia
| | - Mihkel Zilmer
- Center of Excellence for Genomics and Translational Medicine, University of Tartu, 50411 Tartu, Estonia
- Institute of Biomedicine and Translational Medicine, Department of Biochemistry, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
| | - Eero Vasar
- Institute of Biomedicine and Translational Medicine, Department of Physiology, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
- Center of Excellence for Genomics and Translational Medicine, University of Tartu, 50411 Tartu, Estonia
- Correspondence:
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Son JY, Kwack WG, Chung EK, Shin S, Choi YJ. Effects of Early Initiation of High-Dose Dexamethasone Therapy on Pro-Inflammatory Cytokines and Mortality in LPS-Challenged Mice. Healthcare (Basel) 2022; 10:healthcare10071247. [PMID: 35885778 PMCID: PMC9320239 DOI: 10.3390/healthcare10071247] [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: 06/08/2022] [Revised: 07/01/2022] [Accepted: 07/01/2022] [Indexed: 12/15/2022] Open
Abstract
This study aims to explore the effects of early dexamethasone therapy at low to high doses on the survival and inflammatory responses in lipopolysaccharide (LPS)-challenged mice. We performed two-series experiments to explore the impact of early dexamethasone therapy at different doses (0.5 mg/kg, 1.5 mg/kg, and 5 mg/kg; PO) on pro-inflammatory cytokine levels, including tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6), as well as survival in LPS-treated mice (10 mg/kg, IP). Dexamethasone was administered daily from 24 h before and 5 days after LPS challenge. Dose-dependent improved survival was demonstrated with dexamethasone (p < 0.05). Body weight was significantly decreased within 24 h of LPS injection, with significantly greater weight loss in the dexamethasone groups (p < 0.05). Weight changes were significantly associated with the days after LPS administration (p < 0.01), but not with the dexamethasone dose (p > 0.05). Mice treated with high-dose dexamethasone (5 mg/kg) had a significantly lowered serum TNF-α (134.41 ± 15.83 vs. 408.83 ± 18.32) and IL-6 (22.08 ± 4.34 vs. 91.27 ± 8.56) compared with those without dexamethasone. This study provides essential insights that the suppression of early-phase hyperactivation of pro-inflammatory activities through the early initiation of high-dose dexamethasone therapy increases sepsis-related prognosis.
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Affiliation(s)
- Ji-young Son
- Department of Clinical Pharmacy, Graduate School of Pharmacy, CHA University, Seongnam 13488, Korea;
| | - Won Gun Kwack
- Division of Pulmonary, Allergy and Critical Care Medicine, Kyung Hee University Hospital, Seoul 02447, Korea;
| | - Eun Kyoung Chung
- Department of Pharmacy, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea
- Department of Regulatory Science, Graduate School, Kyung Hee University, Seoul 02447, Korea
- Department of Pharmacy, Kyung Hee University Hospital at Gangdong, Seoul 05278, Korea
- Correspondence: (E.K.C.); (S.S.); (Y.J.C.); Tel.: +82-2-961-2122 (E.K.C.); +82-31-219-3456 (S.S.); +82-2-961-0532 (Y.J.C.)
| | - Sooyoung Shin
- Department of Clinical Pharmacy, College of Pharmacy, Ajou University, Suwon 16499, Korea
- Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon 16499, Korea
- Correspondence: (E.K.C.); (S.S.); (Y.J.C.); Tel.: +82-2-961-2122 (E.K.C.); +82-31-219-3456 (S.S.); +82-2-961-0532 (Y.J.C.)
| | - Yeo Jin Choi
- Department of Pharmacy, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea
- Department of Regulatory Science, Graduate School, Kyung Hee University, Seoul 02447, Korea
- Correspondence: (E.K.C.); (S.S.); (Y.J.C.); Tel.: +82-2-961-2122 (E.K.C.); +82-31-219-3456 (S.S.); +82-2-961-0532 (Y.J.C.)
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Kisipan ML, Ojoo RO, Kanui TI, Abelson KSP. Bodyweight, locomotion, and behavioral responses of the naked mole rat (Heterocephalus glaber) to lipopolysaccharide administration. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2022; 208:493-504. [PMID: 35731263 PMCID: PMC9250917 DOI: 10.1007/s00359-022-01557-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 06/10/2022] [Indexed: 11/26/2022]
Abstract
The naked mole rat has unique biologic characteristics that include atypical inflammatory responses. Lipopolysaccharide induces inflammation which triggers brain centers controlling feeding, and behavior to result in “sick animal behavior”. We characterized the bodyweight, locomotor, and other behavioral responses of this rodent to lipopolysaccharide administration. Lipopolysaccharide caused weight losses, which were not prevented by TAK 242. In the open field test, lipopolysaccharide did not depress locomotion, while urination, defecation, and activity freezing were rare. The animals exhibited walling but not rearing and fast backward movements that were unaffected by lipopolysaccharide. Failure to depress locomotion suggests either a unique immunity-brain crosstalk or motor responses/centers that tolerate depressive effects of inflammation. The absence of activity freezing and rarity of urination and defecation suggests that novel environments or lipopolysaccharide do not induce anxiety, or that anxiety is expressed differently in the animal. The absence of rearing could be due to the design of the animal’s locomotor apparatus while fast backward movement could be a mechanism for quick escape from threats in the tunnels of their habitat. Our results elucidate the unique biology of this rodent, which elicits interest in the animal as a model for inflammatory research, although the findings require mechanistic corroborations.
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Affiliation(s)
- Mosiany Letura Kisipan
- Department of Experimental Medicine, University of Copenhagen, Copenhagen, Denmark.
- Department of Veterinary Anatomy and Physiology, Egerton University, Njoro, Kenya.
| | - Rodi Omondi Ojoo
- Department of Veterinary Anatomy and Physiology, University of Nairobi, Nairobi, Kenya
| | - Titus Ikusya Kanui
- Department of Agricultural Sciences, South Eastern Kenya University, Kitui, Kenya
| | - Klas S P Abelson
- Department of Experimental Medicine, University of Copenhagen, Copenhagen, Denmark
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Puris E, Kouřil Š, Najdekr L, Auriola S, Loppi S, Korhonen P, Gómez-Budia M, Fricker G, Kanninen KM, Malm T, Friedecký D, Gynther M. Metabolomic, lipidomic and proteomic characterisation of lipopolysaccharide-induced inflammation mouse model. Neuroscience 2022; 496:165-178. [DOI: 10.1016/j.neuroscience.2022.05.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 05/20/2022] [Accepted: 05/23/2022] [Indexed: 11/28/2022]
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Lipopolysaccharide-Induced Strain-Specific Differences in Neuroinflammation and MHC-I Pathway Regulation in the Brains of Bl6 and 129Sv Mice. Cells 2022; 11:cells11061032. [PMID: 35326484 PMCID: PMC8946912 DOI: 10.3390/cells11061032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 02/04/2023] Open
Abstract
Many studies have demonstrated significant mouse-strain-specific differences in behavior and response to pathogenic and pharmacological agents. This study seeks to characterize possible differences in microglia activation and overall severity of neuroinflammation in two widely used mouse strains, C57BL/6NTac (Bl6) and 129S6/SvEvTac (129Sv), in response to acute lipopolysaccharide (LPS) administration. Locomotor activity within the open field arena revealed similar 24 h motor activity decline in both strains. Both strains also exhibited significant bodyweight loss due to LPS treatment, although it was more severe in the Bl6 strain. Furthermore, LPS induced a hypothermic response in Bl6 mice, which was not seen in 129Sv. We found that 24 h LPS challenge significantly increased the inflammatory status of microglia in 129Sv mice. On the other hand, we observed that, under physiological conditions, microglia of Bl6 seemed to be in a higher immune-alert state. Gene and protein expression analysis revealed that LPS induces a significantly stronger upregulation of MHC-I-pathway-related components in the brain of Bl6 compared to 129Sv mice. The most striking difference was detected in the olfactory bulb, where we observed significant LPS-induced upregulation of MHC-I pathway components in Bl6 mice, whereas no alterations were observed in 129Sv. We observed significant positive correlations between bodyweight decline and expressions of MHC-I components in the olfactory bulbs of Bl6 mice and the frontal cortex of 129Sv, highlighting different brain regions most affected by LPS in these strains. Our findings suggest that the brains of Bl6 mice exist in a more immunocompetent state compared to 129Sv mice.
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Mishra A, Singh KP. Neurotensin agonist PD 149163 modulates the neuroinflammation induced by bacterial endotoxin lipopolysaccharide in mice model. Immunopharmacol Immunotoxicol 2022; 44:216-226. [PMID: 35166614 DOI: 10.1080/08923973.2022.2037628] [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: 11/05/2022]
Abstract
OBJECTIVE The disruption of bidirectional communication between neuroendocrine and immune components by stressors leads to mental problems. The immunomodulation therapy of neuroinflammation-led psychiatric illness is an emerging area of research. Therefore, the present study aimed to evaluate immune modulation efficacy of PD 149163 (PD) against the lipopolysaccharide (LPS)-induced neuroinflammation. MATERIALS AND METHODS The Swiss albino mice (female/12 weeks) were divided into six groups (6 mice/group): (I) Control: 0.9% NaCl; (II) LPS: 1 mg/kg BW, for 5 days; (III) LPS + PD Low: LPS 1 mg/kg BW (for 5 days) after that PD 100 µg/kg BW (for 21 days); (IV) LPS + PD High: LPS 1 mg/kg BW (for 5 days) after that PD 300 µg/kg BW (for 21 days); (V) PD Low: PD 100 µg/kg BW (for 21 days); (VI) PD High: PD 300 µg/kg BW (for 21 days). All treatments were given intraperitoneal. RESULTS The LPS-induced weight loss (body and brain) was normalized to control after PD treatment. The PD enhanced superoxide dismutase (SOD) activity while decreased lipid hydroperoxide (LOOH) level altered in LPS-exposed mice. The significantly increased pro-inflammatory cytokines (IL-6 and TNF-α) in LPS exposure were also decreased by PD. Likewise, the LPS-induced HPA axis activation was stabilized by PD. In the hippocampus, the pyramidal cell layer thickness, pyramidal neurons number and size of CA1 and CA3 regions were reduced along with misalignment, shrinkage, and impairment of cytoarchitecture. In the co-treated group, the LPS-induced hippocampus disruption was reversed after PD exposure. CONCLUSION We suggested that the PD modulates the LPS-induced neuroinflammation and psychiatric illness in a dose-dependent manner.
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Affiliation(s)
- Ankit Mishra
- Neurobiology Lab, Department of Zoology, University of Allahabad, Prayagraj, India
| | - K P Singh
- Neurobiology Lab, Department of Zoology, University of Allahabad, Prayagraj, India
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Notarangelo FM, Schwarcz R. A single prenatal lipopolysaccharide injection has acute, but not long-lasting, effects on cerebral kynurenine pathway metabolism in mice. Eur J Neurosci 2021; 54:5968-5981. [PMID: 34363411 DOI: 10.1111/ejn.15416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/26/2021] [Accepted: 08/03/2021] [Indexed: 11/28/2022]
Abstract
In rodents, a single injection of lipopolysaccharide (LPS) during gestation causes chemical and functional abnormalities in the offspring. These effects may involve changes in the kynurenine pathway (KP) of tryptophan degradation and may provide insights into the pathophysiology of psychiatric diseases. Using CD1 mice, we examined acute and long-term effects of prenatal LPS treatment on the levels of kynurenine and its neuroactive downstream products kynurenic acid (KYNA), 3-hydroxykynurenine (3-HK) and quinolinic acid. To this end, LPS (100 μg/kg, i.p.) was administered on gestational day 15, and KP metabolites were measured 4 and 24 h later or in adulthood. After 4 h, kynurenine, KYNA and 3-HK levels were elevated in the fetal brain, 3-HK and KYNA levels were increased in the maternal plasma, and kynurenine was increased in the maternal brain, whereas no changes were seen in the placenta. These effects were less prominent after 24 h, and prenatal LPS did not affect the basal levels of KP metabolites in the forebrain of adult animals. In addition, a second LPS injection (1 mg/kg) in adulthood in the offspring of prenatally saline- and LPS-treated mice caused a similar elevation in 3-HK levels in both groups after 24 h, but the effect was significantly more pronounced in male mice. Thus, acute immune activation during pregnancy has only short-lasting effects on KP metabolism and does not cause cerebral KP metabolites to be disproportionally affected by a second immune challenge in adulthood. However, prenatal KYNA elevations still contribute to functional abnormalities in the offspring.
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Affiliation(s)
- Francesca M Notarangelo
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Robert Schwarcz
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, Maryland, USA
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Varul J, Eskla KL, Piirsalu M, Innos J, Philips MA, Visnapuu T, Plaas M, Vasar E. Dopamine System, NMDA Receptor and EGF Family Expressions in Brain Structures of Bl6 and 129Sv Strains Displaying Different Behavioral Adaptation. Brain Sci 2021; 11:brainsci11060725. [PMID: 34072341 PMCID: PMC8227283 DOI: 10.3390/brainsci11060725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/24/2021] [Accepted: 05/27/2021] [Indexed: 12/14/2022] Open
Abstract
C57BL/6NTac (Bl6) and 129S6/SvEvTac (129Sv) mice display different coping strategies in stressful conditions. Our aim was to evaluate biomarkers related to different adaptation strategies in the brain of male 129Sv and Bl6 mice. We focused on signaling pathways related to the dopamine (DA) system, N-methyl-D-aspartate (NMDA) receptor and epidermal growth factor (EGF) family, shown as the key players in behavioral adaptation. Mice from Bl6 and 129Sv lines were divided into either home cage controls (HCC group) or exposed to repeated motility testing and treated with saline for 11 days (RMT group). Distinct stress responses were reflected in severe body weight loss in 129Sv and the increased exploratory behavior in Bl6 mice. Besides that, amphetamine caused significantly stronger motor stimulation in Bl6. Together with the results from gene expression (particularly Maob), this study supports higher baseline activity of DA system in Bl6. Interestingly, the adaptation is reflected with opposite changes of DA markers in dorsal and ventral striatum. In forebrain, stress increased the gene expressions of Egf-Erbb1 and Nrg1/Nrg2-Erbb4 pathways more clearly in 129Sv, whereas the corresponding proteins were significantly elevated in Bl6. We suggest that not only inhibited activity of the DA system, but also reduced activity of EGF family and NMDA receptor signaling underlies higher susceptibility to stress in 129Sv. Altogether, this study underlines the better suitability of 129Sv for modelling neuropsychiatric disorders than Bl6.
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Affiliation(s)
- Jane Varul
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; (K.-L.E.); (M.P.); (J.I.); (M.-A.P.); (T.V.); (M.P.); (E.V.)
- Center of Excellence for Genomics and Translational Medicine, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
- Correspondence:
| | - Kattri-Liis Eskla
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; (K.-L.E.); (M.P.); (J.I.); (M.-A.P.); (T.V.); (M.P.); (E.V.)
- Center of Excellence for Genomics and Translational Medicine, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
| | - Maria Piirsalu
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; (K.-L.E.); (M.P.); (J.I.); (M.-A.P.); (T.V.); (M.P.); (E.V.)
- Center of Excellence for Genomics and Translational Medicine, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
| | - Jürgen Innos
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; (K.-L.E.); (M.P.); (J.I.); (M.-A.P.); (T.V.); (M.P.); (E.V.)
- Center of Excellence for Genomics and Translational Medicine, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
| | - Mari-Anne Philips
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; (K.-L.E.); (M.P.); (J.I.); (M.-A.P.); (T.V.); (M.P.); (E.V.)
- Center of Excellence for Genomics and Translational Medicine, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
| | - Tanel Visnapuu
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; (K.-L.E.); (M.P.); (J.I.); (M.-A.P.); (T.V.); (M.P.); (E.V.)
- Center of Excellence for Genomics and Translational Medicine, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
| | - Mario Plaas
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; (K.-L.E.); (M.P.); (J.I.); (M.-A.P.); (T.V.); (M.P.); (E.V.)
- Center of Excellence for Genomics and Translational Medicine, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
- Laboratory Animal Center, Institute of Biomedicine and Translational Medicine, University of Tartu, 14B Ravila Street, 50411 Tartu, Estonia
| | - Eero Vasar
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia; (K.-L.E.); (M.P.); (J.I.); (M.-A.P.); (T.V.); (M.P.); (E.V.)
- Center of Excellence for Genomics and Translational Medicine, Institute of Biomedicine and Translational Medicine, University of Tartu, 19 Ravila Street, 50411 Tartu, Estonia
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Auclair N, Sané AT, Ahmarani L, Patey N, Beaulieu JF, Peretti N, Spahis S, Levy E. Sar1b mutant mice recapitulate gastrointestinal abnormalities associated with chylomicron retention disease. J Lipid Res 2021; 62:100085. [PMID: 33964306 PMCID: PMC8175419 DOI: 10.1016/j.jlr.2021.100085] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/15/2021] [Accepted: 04/17/2021] [Indexed: 11/17/2022] Open
Abstract
Chylomicron retention disease (CRD) is an autosomal recessive disorder associated with biallelic Sar1b mutations leading to defects in intracellular chylomicron (CM) trafficking and secretion. To date, a direct cause-effect relationship between CRD and Sar1b mutation has not been established, but genetically modified animal models provide an opportunity to elucidate unrecognized aspects of these mutations. To examine the physiological role and molecular mechanisms of Sar1b function, we generated mice expressing either a targeted deletion or mutation of human Sar1b using the CRISPR-Cas9 system. We found that deletion or mutation of Sar1b in mice resulted in late-gestation lethality of homozygous embryos. Moreover, compared with WT mice, heterozygotes carrying a single disrupted Sar1b allele displayed lower plasma levels of triglycerides, total cholesterol, and HDL-cholesterol, along with reduced CM secretion following gastric lipid gavage. Similarly, decreased expression of apolipoprotein B and microsomal triglyceride transfer protein was observed in correlation with the accumulation of mucosal lipids. Inefficient fat absorption in heterozygotes was confirmed via an increase in fecal lipid excretion. Furthermore, genetically modified Sar1b affected intestinal lipid homeostasis as demonstrated by enhanced fatty acid β-oxidation and diminished lipogenesis through the modulation of transcription factors. This is the first reported mammalian animal model with human Sar1b genetic defects, which reproduces some of the characteristic CRD features and provides a direct cause-effect demonstration.
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Affiliation(s)
- Nickolas Auclair
- Research Center, CHU Ste-Justine, Université de Montréal, Montreal, Quebec, Canada; Department of Pharmacology & Physiology, Université de Montréal, Montreal, Quebec, Canada
| | - Alain T Sané
- Research Center, CHU Ste-Justine, Université de Montréal, Montreal, Quebec, Canada
| | - Lena Ahmarani
- Research Center, CHU Ste-Justine, Université de Montréal, Montreal, Quebec, Canada; Department of Nutrition, Université de Montréal, Montreal, Quebec, Canada
| | - Nathalie Patey
- Research Center, CHU Ste-Justine, Université de Montréal, Montreal, Quebec, Canada; Department of Pathology, Université de Montréal, Montreal, Quebec, Canada
| | - Jean-François Beaulieu
- Laboratory of Intestinal Physiopathology, Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Noel Peretti
- Department of Pediatric Gastroenterology-Hepatology and Nutrition, Laboratory INSERM 1060 Cardiovascular Metabolism Endocrinology and Nutrition CarMEN, Lyon, France
| | - Schohraya Spahis
- Research Center, CHU Ste-Justine, Université de Montréal, Montreal, Quebec, Canada; Department of Nutrition, Université de Montréal, Montreal, Quebec, Canada
| | - Emile Levy
- Research Center, CHU Ste-Justine, Université de Montréal, Montreal, Quebec, Canada; Department of Pharmacology & Physiology, Université de Montréal, Montreal, Quebec, Canada; Department of Nutrition, Université de Montréal, Montreal, Quebec, Canada.
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13
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Adetuyi BO, Farombi EO. 6-Gingerol, an active constituent of ginger, attenuates lipopolysaccharide-induced oxidation, inflammation, cognitive deficits, neuroplasticity, and amyloidogenesis in rat. J Food Biochem 2021; 45:e13660. [PMID: 33624846 DOI: 10.1111/jfbc.13660] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/05/2021] [Accepted: 01/31/2021] [Indexed: 01/23/2023]
Abstract
This study examined the protective effect of 6-Gingerol (6G) against lipopolysaccharide (LPS)-induced cognitive impairments, oxidative stress, neuroplasticity, amyloidogenesis, and inflammation. Male rats were allocated into six groups in this manner; Group I placed on normal saline only. Group II was treated for 7 days with LPS alone intraperitoneally at 250 µg/kg body weight (bw). Group III received 6G alone at 50 mg/kg bw orally for 14 days. Groups IV and V received 6G at 20 and 50 mg/kg bw for 7 days, respectively, and LPS for another 7 days to induce neurotoxicity. Group VI received 5 mg/kg bw of donepezil for 7 days and LPS for 7 days. Pretreatment with 20 and 50 mg/kg bw of 6G protected against LPS-mediated learning and memory function, and also locomotor and motor deficits. Besides, 20 and 50 mg/kg bw 6G mitigated LPS-induced alteration in markers of oxidative stress. Furthermore, induction of amyloidogenesis associated with disruption of histoarchitecture and high expression of interleukin 1β, inducible nitric oxide synthase, amyloid precursor protein (APP), β-secretase 1, and brain-derived neurotrophic factor by LPS was mitigated by the two doses of 6G in the rat hippocampus and cerebral cortex region of the brain. 6G pretreatment at the two doses mitigated LPS-mediated histopathological changes in the hippocampus and cerebral cortex of rats. Overall, our results demonstrate that the protective effect of 6G is mediated through the reversal of neurobehavioral deficit, oxidative stress, inflammation, and amyloidogenesis, thus making 6G a possible chemoprophylactic agent against brain injury as a result of LPS exposure. PRACTICAL APPLICATIONS: In the search for a holistic prevention of inflammation-associated neurodegeneration, nutraceuticals are becoming prominent. Hence, this study presents 6G, an active constituent of ginger, as a chemoprotective, antioxidant, and anti-inflammatory agent, which is able to ameliorate cognitive impairments, oxidative stress, neuroplasticity, amyloidogenesis, and inflammation in LPS-induced rat model of neuroinflammation.
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Affiliation(s)
- Babatunde Oluwafemi Adetuyi
- Molecular Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ebenezer Olatunde Farombi
- Molecular Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
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14
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Geng C, Guo Y, Wang C, Cui C, Han W, Liao D, Jiang P. Comprehensive Evaluation of Lipopolysaccharide-Induced Changes in Rats Based on Metabolomics. J Inflamm Res 2020; 13:477-486. [PMID: 32904659 PMCID: PMC7457572 DOI: 10.2147/jir.s266012] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/01/2020] [Indexed: 12/13/2022] Open
Abstract
Purpose Substantial evidence indicates that lipopolysaccharide (LPS) exposure can lead to systemic inflammatory response syndrome (SIRS) and multiple organ failure. Previous metabolomic studies have mainly focused on LPS-induced depression or hepatic and renal effects. However, no comprehensive metabolomics-based analysis of the serum, liver, kidney, hippocampus, and heart following exposure to LPS has been undertaken to date. Material and Methods Male Sprague-Dawley rats were randomly allocated to a control and a LPS-treated group (n=8). LPS for 2 weeks (0.5 mg/kg every other day) was given via intraperitoneal injection. Gas chromatography-mass spectrometry (GC-MS) was used for metabolite determination, while multivariate statistical analysis was performed to identify differentially expressed metabolites between the two groups. Results Our study revealed that 24, 13, 12, 7, and 12 metabolites were differentially expressed between the LPS treatment group and the control group in the serum, liver, kidney, hippocampus, and heart, respectively. We further identified that these metabolic changes were mainly involved with aminoacyl-tRNA biosynthesis; glutathione metabolism; glyoxylate and dicarboxylate metabolism; glycine, serine, and threonine metabolism; arginine biosynthesis; bile acid biosynthesis; and glycerolipid metabolism. Conclusion We have systematically elucidated the metabolic changes underlying LPS-induced SIRS, thereby providing insight into the mechanisms associated with these alterations.
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Affiliation(s)
- Chunmei Geng
- Department of Pharmacy, Jining First People's Hospital, Jining Medical University, Jining 272000, People's Republic of China
| | - Yujin Guo
- Department of Pharmacy, Jining First People's Hospital, Jining Medical University, Jining 272000, People's Republic of China
| | - Changshui Wang
- Department of Clinical Translational Medicine, Jining Life Science Center, Jining 272000, People's Republic of China
| | - Changmeng Cui
- Department of Neurosurgery, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, People's Republic of China
| | - Wenxiu Han
- Department of Pharmacy, Jining First People's Hospital, Jining Medical University, Jining 272000, People's Republic of China
| | - Dehua Liao
- Department of Pharmacy, Hunan Cancer Hospital, Central South University, Changsha 410011, People's Republic of China
| | - Pei Jiang
- Department of Pharmacy, Jining First People's Hospital, Jining Medical University, Jining 272000, People's Republic of China
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Chen J, Vitetta L. Gut Microbiota Metabolites in NAFLD Pathogenesis and Therapeutic Implications. Int J Mol Sci 2020; 21:ijms21155214. [PMID: 32717871 PMCID: PMC7432372 DOI: 10.3390/ijms21155214] [Citation(s) in RCA: 141] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/20/2020] [Accepted: 07/20/2020] [Indexed: 02/06/2023] Open
Abstract
Gut microbiota dysregulation plays a key role in the pathogenesis of nonalcoholic fatty liver disease (NAFLD) through its metabolites. Therefore, the restoration of the gut microbiota and supplementation with commensal bacterial metabolites can be of therapeutic benefit against the disease. In this review, we summarize the roles of various bacterial metabolites in the pathogenesis of NAFLD and their therapeutic implications. The gut microbiota dysregulation is a feature of NAFLD, and the signatures of gut microbiota are associated with the severity of the disease through altered bacterial metabolites. Disturbance of bile acid metabolism leads to underactivation of bile acid receptors FXR and TGR5, causal for decreased energy expenditure, increased lipogenesis, increased bile acid synthesis and increased macrophage activity. Decreased production of butyrate results in increased intestinal inflammation, increased gut permeability, endotoxemia and systemic inflammation. Dysregulation of amino acids and choline also contributes to lipid accumulation and to a chronic inflammatory status. In some NAFLD patients, overproduction of ethanol produced by bacteria is responsible for hepatic inflammation. Many approaches including probiotics, prebiotics, synbiotics, faecal microbiome transplantation and a fasting-mimicking diet have been applied to restore the gut microbiota for the improvement of NAFLD.
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Affiliation(s)
- Jiezhong Chen
- Medlab Clinical, Sydney 2015, Australia
- Correspondence: (J.C.); (L.V.)
| | - Luis Vitetta
- Medlab Clinical, Sydney 2015, Australia
- Faculty of Medicine and Health, The University of Sydney, Sydney 2006, Australia
- Correspondence: (J.C.); (L.V.)
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