1
|
Hu Q, Cai H, Ke X, Wang H, Zheng D, Chen Y, Wang Y, Chen G. The lateral septum partakes the regulation of propofol-induced anxiety-like behavior. Eur J Pharmacol 2024; 977:176756. [PMID: 38897021 DOI: 10.1016/j.ejphar.2024.176756] [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: 01/12/2024] [Revised: 05/23/2024] [Accepted: 06/16/2024] [Indexed: 06/21/2024]
Abstract
Repeated exposure to propofol during early brain development is associated with anxiety disorders in adulthood, yet the mechanisms underlying propofol-induced susceptibility to anxiety disorders remain elusive. The lateral septum (LS), primarily composed of γ-aminobutyric acidergic (GABAergic) neurons, serves as a key brain region in the regulation of anxiety. However, it remains unclear whether LS GABAergic neurons are implicated in propofol-induced anxiety. Therefore, we conducted c-Fos immunostaining of whole-brain slices from mice exposed to propofol during early life. Our findings indicate that propofol exposure activates GABAergic neurons in the LS. Selective activation of LS GABAergic neurons resulted in increased anxiety-like behavior, while selective inhibition of these neurons reduced such behaviors. These results suggest that the LS is a critical brain region involved in propofol-induced anxiety. Furthermore, we investigated the molecular mechanism of propofol-induced anxiety in the LS. Microglia activation underlies the development of anxiety. Immunofluorescence staining and Western blot analysis of LS revealed activated microglia and significantly elevated levels of phospho-NF-κB p65 protein. Additionally, a decrease in the number of neuronal spines was observed. Our study highlights the crucial role of the LS in the development of anxiety-like behavior in adulthood following childhood propofol exposure, accompanied by the activation of inflammatory pathways.
Collapse
Affiliation(s)
- Qian Hu
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Huajing Cai
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Xinlong Ke
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Hongwei Wang
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Du Zheng
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Yeru Chen
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Yongjie Wang
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang, 311121, China
| | - Gang Chen
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| |
Collapse
|
2
|
Guerrero-Carrasco M, Targett I, Olmos-Alonso A, Vargas-Caballero M, Gomez-Nicola D. Low-grade systemic inflammation stimulates microglial turnover and accelerates the onset of Alzheimer's-like pathology. Glia 2024; 72:1340-1355. [PMID: 38597386 DOI: 10.1002/glia.24532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/22/2024] [Accepted: 03/26/2024] [Indexed: 04/11/2024]
Abstract
Several in vivo studies have shown that systemic inflammation, mimicked by LPS, triggers an inflammatory response in the CNS, driven by microglia, characterized by an increase in inflammatory cytokines and associated sickness behavior. However, most studies induce relatively high systemic inflammation, not directly compared with the more common low-grade inflammatory events experienced in humans during the life course. Using mice, we investigated the effects of low-grade systemic inflammation during an otherwise healthy early life, and how this may precondition the onset and severity of Alzheimer's disease (AD)-like pathology. Our results indicate that low-grade systemic inflammation induces sub-threshold brain inflammation and promotes microglial proliferation driven by the CSF1R pathway, contrary to the effects caused by high systemic inflammation. In addition, repeated systemic challenges with low-grade LPS induce disease-associated microglia. Finally, using an inducible model of AD-like pathology (Line 102 mice), we observed that preconditioning with repeated doses of low-grade systemic inflammation, prior to APP induction, promotes a detrimental effect later in life, leading to an increase in Aβ accumulation and disease-associated microglia. These results support the notion that episodic low-grade systemic inflammation has the potential to influence the onset and severity of age-related neurological disorders, such as AD.
Collapse
Affiliation(s)
- Monica Guerrero-Carrasco
- School of Biological Sciences, University of Southampton, Southampton General Hospital, Southampton, UK
| | - Imogen Targett
- School of Biological Sciences, University of Southampton, Southampton General Hospital, Southampton, UK
| | - Adrian Olmos-Alonso
- School of Biological Sciences, University of Southampton, Southampton General Hospital, Southampton, UK
| | - Mariana Vargas-Caballero
- School of Biological Sciences, University of Southampton, Southampton General Hospital, Southampton, UK
- Institute for Life Sciences (IfLS), University of Southampton, Southampton, UK
| | - Diego Gomez-Nicola
- School of Biological Sciences, University of Southampton, Southampton General Hospital, Southampton, UK
- Institute for Life Sciences (IfLS), University of Southampton, Southampton, UK
| |
Collapse
|
3
|
Boles J, Uriarte Huarte O, Tansey MG. Peripheral endotoxin exposure in mice activates crosstalk between phagocytes in the brain and periphery. RESEARCH SQUARE 2024:rs.3.rs-4478250. [PMID: 38883776 PMCID: PMC11177977 DOI: 10.21203/rs.3.rs-4478250/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Background Inflammation is a central process of many neurological diseases, and a growing number of studies suggest that non-brain-resident immune cells may contribute to this neuroinflammation. However, the unique contributions of specific immune cell subsets to neuroinflammation are presently unknown, and it is unclear how communication between brain-resident and non-resident immune cells underlies peripheral immune cell involvement in neuroinflammation. Methods In this study, we employed the well-established model of lipopolysaccharide (LPS)-induced neuroinflammation and captured brain-resident and non-resident immune cells from the brain and its vasculature by magnetically enriching cell suspensions from the non-perfused brain for CD45 + cells. Then, we identified immune subtype-specific neuroinflammatory processes using single-cell genomics and predicted the crosstalk between immune cell subtypes by analyzing the simultaneous expression of ligands and receptors. Results We observed a greater abundance of peripheral phagocytes associated with the brain in this model of neuroinflammation, and report that these professional phagocytes activated similar transcriptional profiles to microglia during LPS-induced neuroinflammation. And, we observed that the probable crosstalk between microglia and peripheral phagocytes was activated in this model while homotypic microglial communication was likely to be decreased. Conclusions Our novel findings reveal that microglia signaling to non-brain-resident peripheral phagocytes is preferentially triggered by peripheral inflammation, which is associated with brain infiltration of peripheral cells. Overall, our study supports the involvement of peripheral immune cells in neuroinflammation and suggests several possible molecular signaling pathways between microglia and peripheral cells that may facilitate central-peripheral crosstalk during inflammation. Examining these molecular mediators in human disease and other rodent models may reveal novel targets that modify brain health, especially in comorbidities characterized by peripheral inflammation.
Collapse
|
4
|
Genin EC, di Borgo PP, Lorivel T, Hugues S, Farinelli M, Mauri-Crouzet A, Lespinasse F, Godin L, Paquis-Flucklinger V, Petit-Paitel A. CHCHD10 S59L/+ mouse model: Behavioral and neuropathological features of frontotemporal dementia. Neurobiol Dis 2024; 195:106498. [PMID: 38583639 DOI: 10.1016/j.nbd.2024.106498] [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: 01/25/2024] [Revised: 03/22/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024] Open
Abstract
CHCHD10-related disease causes a spectrum of clinical presentations including mitochondrial myopathy, cardiomyopathy, amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). We generated a knock-in mouse model bearing the p.Ser59Leu (S59L) CHCHD10 variant. Chchd10S59L/+ mice have been shown to phenotypically replicate the disorders observed in patients: myopathy with mtDNA instability, cardiomyopathy and typical ALS features (protein aggregation, neuromuscular junction degeneration and spinal motor neuron loss). Here, we conducted a comprehensive behavioral, electrophysiological and neuropathological assessment of Chchd10S59L/+ mice. These animals show impaired learning and memory capacities with reduced long-term potentiation (LTP) measured at the Perforant Pathway-Dentate Gyrus (PP-DG) synapses. In the hippocampus of Chchd10S59L/+ mice, neuropathological studies show the involvement of protein aggregates, activation of the integrated stress response (ISR) and neuroinflammation in the degenerative process. These findings contribute to decipher mechanisms associated with CHCHD10 variants linking mitochondrial dysfunction and neuronal death. They also validate the Chchd10S59L/+ mice as a relevant model for FTD, which can be used for preclinical studies to test new therapeutic strategies for this devastating disease.
Collapse
Affiliation(s)
- Emmanuelle C Genin
- Université Côte d'Azur (UniCa), Institute for Research on Cancer and Aging (IRCAN), UMR CNRS 7284/INSERM U1081, Centre Hospitalier Universitaire (CHU) de Nice, Nice, France
| | - Pauline Pozzo di Borgo
- Université Côte d'Azur (UniCa), Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), CNRS UMR7275, Inserm, Sophia Antipolis, Valbonne, France
| | - Thomas Lorivel
- Université Côte d'Azur (UniCa), Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), CNRS UMR7275, Inserm, Sophia Antipolis, Valbonne, France
| | - Sandrine Hugues
- E-Phy-Science, Bioparc, 2400 Route des Colles, Sophia Antipolis 06410, Biot, France
| | - Mélissa Farinelli
- E-Phy-Science, Bioparc, 2400 Route des Colles, Sophia Antipolis 06410, Biot, France
| | - Alessandra Mauri-Crouzet
- Université Côte d'Azur (UniCa), Institute for Research on Cancer and Aging (IRCAN), UMR CNRS 7284/INSERM U1081, Centre Hospitalier Universitaire (CHU) de Nice, Nice, France
| | - Françoise Lespinasse
- Université Côte d'Azur (UniCa), Institute for Research on Cancer and Aging (IRCAN), UMR CNRS 7284/INSERM U1081, Centre Hospitalier Universitaire (CHU) de Nice, Nice, France
| | - Lucas Godin
- Université Côte d'Azur (UniCa), Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), CNRS UMR7275, Inserm, Sophia Antipolis, Valbonne, France
| | - Véronique Paquis-Flucklinger
- Université Côte d'Azur (UniCa), Institute for Research on Cancer and Aging (IRCAN), UMR CNRS 7284/INSERM U1081, Centre Hospitalier Universitaire (CHU) de Nice, Nice, France.
| | - Agnès Petit-Paitel
- Université Côte d'Azur (UniCa), Institut de Pharmacologie Moléculaire et Cellulaire (IPMC), CNRS UMR7275, Inserm, Sophia Antipolis, Valbonne, France.
| |
Collapse
|
5
|
Tansey MG, Boles J, Holt J, Cole C, Neighbarger N, Urs N, Uriarte-Huarte O. Locus coeruleus injury modulates ventral midbrain neuroinflammation during DSS-induced colitis. RESEARCH SQUARE 2024:rs.3.rs-3952442. [PMID: 38559083 PMCID: PMC10980147 DOI: 10.21203/rs.3.rs-3952442/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Parkinson's disease (PD) is characterized by a decades-long prodrome, consisting of a collection of non-motor symptoms that emerges prior to the motor manifestation of the disease. Of these non-motor symptoms, gastrointestinal dysfunction and deficits attributed to central norepinephrine (NE) loss, including mood changes and sleep disturbances, are frequent in the PD population and emerge early in the disease. Evidence is mounting that injury and inflammation in the gut and locus coeruleus (LC), respectively, underlie these symptoms, and the injury of these systems is central to the progression of PD. In this study, we generate a novel two-hit mouse model that captures both features, using dextran sulfate sodium (DSS) to induce gut inflammation and N-(2-chloroethyl)-N-ethyl-2-bromobenzylamine (DSP-4) to lesion the LC. We first confirmed the specificity of DSP-4 for central NE using neurochemical methods and fluorescence light-sheet microscopy of cleared tissue, and established that DSS-induced outcomes in the periphery, including weight loss, gross indices of gut injury and systemic inflammation, the loss of tight junction proteins in the colonic epithelium, and markers of colonic inflammation, were unaffected with DSP-4 pre-administration. We then measured alterations in neuroimmune gene expression in the ventral midbrain in response to DSS treatment alone as well as the extent to which prior LC injury modified this response. In this two-hit model we observed that DSS-induced colitis activates the expression of key cytokines and chemokines in the ventral midbrain only in the presence of LC injury and the typical DSS-associated neuroimmune is blunted by pre-LC lesioning with DSP-4. In all, this study supports the growing appreciation for the LC as neuroprotective against inflammation-induced brain injury and draws attention to the potential for NEergic interventions to exert disease-modifying effects under conditions where peripheral inflammation may compromise ventral midbrain dopaminergic neurons and increase the risk for development of PD.
Collapse
|
6
|
Yao J, Chen C, Sun Y, Lin Y, Tian Z, Liu X, Wang H, Long J, Yan Q, Lin M, Ai Q, Gao Y, Chen N, Yang Y, Yang S. Higenamine exerts antidepressant effect by improving the astrocytic gap junctions and inflammatory response. J Affect Disord 2024; 348:107-115. [PMID: 38101523 DOI: 10.1016/j.jad.2023.12.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 11/01/2023] [Accepted: 12/02/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND Depression is a refractory psychiatric disorder closely associated with dysfunction of the gap junctions (GJs) between astrocytes as well as neuroinflammation. Higenamine (Hig) is a potent cardiotonic ingredient in Fuzi (i.e., Aconitum carmichaeli Debx.) with anti-inflammatory and antioxidant effects, which has a significant protective effect on damaged nerve cells and has great potential for the treatment of neuropsychiatric diseases. METHODS Rats were stimulated by chronic unpredictable stress (CUS) for 28 days while given Hig (5, 10, 20 mg/kg) and then analyzed behaviorally by the open field test, sucrose preference test, and forced swimming test. Changes in astrocyte GJs function and morphology were observed by dye transfer and transmission electron microscopy, respectively. Expression and phosphorylation of connexin 43 (Cx43) were analyzed by Western blot. Also, considering the close relationship between depression and neuroinflammation, we determined the inflammatory response in serum with ELISA kits and analyzed the expression of inflammation-related proteins with Western blot. RESULTS Hig ameliorated CUS-induced depression-like behavior in rats. Hig administration improved gap junctional dysfunction in astrocytes, reduced gap junctional gaps and elevated the expression of Cx43 and decreased the phosphorylation of Cx43. Meanwhile, Hig administration was also able to attenuate the inflammatory response that occurs after CUS in rats. LIMITATIONS For the role of Cx43 in depression, we did not validate it more deeply in animal models with knockout Cx43. In addition, GJs dysfunction might be associated with the inflammatory response seen in depression, but this needs to be further investigated. CONCLUSIONS Hig ameliorates depression and exerts its antidepressant effect possibly by improving the dysfunctional GJs between astrocytes and the inflammatory response.
Collapse
Affiliation(s)
- Jiao Yao
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Cong Chen
- School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Yang Sun
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Yuting Lin
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Zhifeng Tian
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Xinya Liu
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Huiqin Wang
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Junpeng Long
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Qian Yan
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Meiyu Lin
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Qidi Ai
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Yan Gao
- Biomedical Innovation Center, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - Naihong Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China.
| | - Yantao Yang
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China.
| | - Songwei Yang
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China.
| |
Collapse
|
7
|
da Silva AAF, Fiadeiro MB, Bernardino LI, Fonseca CSP, Baltazar GMF, Cristóvão ACB. "Lipopolysaccharide-induced animal models for neuroinflammation - An overview.". J Neuroimmunol 2024; 387:578273. [PMID: 38183948 DOI: 10.1016/j.jneuroim.2023.578273] [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: 03/02/2023] [Revised: 11/07/2023] [Accepted: 11/29/2023] [Indexed: 01/08/2024]
Abstract
Neuroinflammation is a pathological mechanism contributing to neurodegenerative diseases. For in-depth studies of neuroinflammation, several animal models reported reproducing behavioral dysfunctions and cellular pathological mechanisms induced by brain inflammation. One of the most popular models of neuroinflammation is the one generated by lipopolysaccharide exposure. Despite its importance, the reported results using this model show high heterogeneity, making it difficult to analyze and compare the outcomes between studies. Therefore, the current review aims to summarize the different experimental paradigms used to reproduce neuroinflammation by lipopolysaccharide exposure and its respective outcomes, helping to choose the model that better suits each specific research aim.
Collapse
Affiliation(s)
- Ana Alexandra Flores da Silva
- CICS-UBI - Health Sciences Research Center, University of Beira Interior, Covilhã, Portugal; NeuroSoV/Fastprinciple-Lda, UBIMedical, Universidade da Beira Interior, Covilhã, Portugal
| | - Mariana Bernardo Fiadeiro
- CICS-UBI - Health Sciences Research Center, University of Beira Interior, Covilhã, Portugal; NeuroSoV/Fastprinciple-Lda, UBIMedical, Universidade da Beira Interior, Covilhã, Portugal
| | | | | | | | - Ana Clara Braz Cristóvão
- CICS-UBI - Health Sciences Research Center, University of Beira Interior, Covilhã, Portugal; NeuroSoV/Fastprinciple-Lda, UBIMedical, Universidade da Beira Interior, Covilhã, Portugal.
| |
Collapse
|
8
|
Boles JS, Holt J, Cole CL, Neighbarger NK, Urs NM, Huarte OU, Tansey MG. Locus coeruleus injury modulates ventral midbrain neuroinflammation during DSS-induced colitis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.12.580010. [PMID: 38405709 PMCID: PMC10888767 DOI: 10.1101/2024.02.12.580010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Parkinson's disease (PD) is characterized by a decades-long prodrome, consisting of a collection of non-motor symptoms that emerges prior to the motor manifestation of the disease. Of these non-motor symptoms, gastrointestinal dysfunction and deficits attributed to central norepinephrine (NE) loss, including mood changes and sleep disturbances, are frequent in the PD population and emerge early in the disease. Evidence is mounting that injury and inflammation in the gut and locus coeruleus (LC), respectively, underlie these symptoms, and the injury of these systems is central to the progression of PD. In this study, we generate a novel two-hit mouse model that captures both features, using dextran sulfate sodium (DSS) to induce gut inflammation and N-(2-chloroethyl)-N-ethyl-2-bromobenzylamine (DSP-4) to lesion the LC. We first confirmed the specificity of DSP-4 for central NE using neurochemical methods and fluorescence light-sheet microscopy of cleared tissue, and established that DSS-induced outcomes in the periphery, including weight loss, gross indices of gut injury and systemic inflammation, the loss of tight junction proteins in the colonic epithelium, and markers of colonic inflammation, were unaffected with DSP-4 pre-administration. We then measured alterations in neuroimmune gene expression in the ventral midbrain in response to DSS treatment alone as well as the extent to which prior LC injury modified this response. In this two-hit model we observed that DSS-induced colitis activates the expression of key cytokines and chemokines in the ventral midbrain only in the presence of LC injury and the typical DSS-associated neuroimmune is blunted by pre-LC lesioning with DSP-4. In all, this study supports the growing appreciation for the LC as neuroprotective against inflammation-induced brain injury and draws attention to the potential for NEergic interventions to exert disease-modifying effects under conditions where peripheral inflammation may compromise ventral midbrain dopaminergic neurons and increase the risk for development of PD.
Collapse
Affiliation(s)
- Jake Sondag Boles
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, USA
- McKnight Brain Institute, University of Florida, Gainesville, FL, USA
| | - Jenny Holt
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, USA
- McKnight Brain Institute, University of Florida, Gainesville, FL, USA
| | - Cassandra L. Cole
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, USA
- McKnight Brain Institute, University of Florida, Gainesville, FL, USA
| | - Noelle K. Neighbarger
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, USA
- McKnight Brain Institute, University of Florida, Gainesville, FL, USA
| | - Nikhil M. Urs
- McKnight Brain Institute, University of Florida, Gainesville, FL, USA
- Department of Pharmacology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Oihane Uriarte Huarte
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Malú Gámez Tansey
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, USA
- Center for Translational Research in Neurodegenerative Disease, College of Medicine, University of Florida, Gainesville, FL, USA
- McKnight Brain Institute, University of Florida, Gainesville, FL, USA
- Norman Fixel Institute for Neurological Diseases, University of Florida, Gainesville, FL, USA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
| |
Collapse
|
9
|
Chen L, Pan D, Zhang Y, Zhang E, Ma L. C-C Motif Chemokine 2 Regulates Macrophage Polarization and Contributes to Myocardial Infarction Healing. J Interferon Cytokine Res 2024; 44:68-79. [PMID: 38153396 DOI: 10.1089/jir.2023.0132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023] Open
Abstract
Macrophages are crucial immune cells that play essential roles in the healing of myocardial infarction (MI), undergoing continuous polarization throughout this process. C-C motif chemokine 2 (CCL2) is a chemokine that regulates inflammatory responses during MI. However, the extent to which CCL2 influences macrophage polarization and MI healing remains incompletely understood. In this study, we investigate the role of CCL2 in macrophage polarization and MI healing. Our findings reveal that CCL2 is differentially expressed in lipopolysaccharide (LPS)-induced M1 and interleukin (IL)-4-induced M2 RAW264.7 macrophages. Knockdown of CCL2 attenuates TNF-α secretion stimulated by LPS, while overexpression of CCL2 mitigates IL-10 production triggered by IL-4 in these macrophages. Moreover, CCL2 deficiency disrupts LPS-induced M1 polarization, whereas CCL2 overexpression reduces M2 polarization of RAW264.7 macrophages induced by IL-4. Further exploration indicates that the promotion of M1 polarization by CCL2 is significantly impaired by inhibition of the p38-mediated MAPK pathway and NF-κB pathway. In a MI mouse model, CCL2 knockdown remarkably reduces infarct size, collagen synthesis, and the expression of cardiac fibrosis and hypertrophy markers. The activity of the p38-mediated MAPK pathway and NF-κB pathway is downregulated by CCL2 knockdown as well. Additionally, the number of total macrophages and M1 macrophages in the infarct decreases, while the number of M2 macrophages increases upon CCL2 deficiency. In conclusion, these results suggest that CCL2 is a key regulator of macrophage polarization, controlling MI healing in vivo.
Collapse
Affiliation(s)
- Liangwei Chen
- Department of Cardiac and Macrovascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Dihao Pan
- Department of Cardiac and Macrovascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yiran Zhang
- Department of Cardiac and Macrovascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Enfan Zhang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Liang Ma
- Department of Cardiac and Macrovascular Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| |
Collapse
|
10
|
Bordt EA, Moya HA, Jo YC, Ravichandran CT, Bankowski IM, Ceasrine AM, McDougle CJ, Carlezon WA, Bilbo SD. Gonadal hormones impart male-biased behavioral vulnerabilities to immune activation via microglial mitochondrial function. Brain Behav Immun 2024; 115:680-695. [PMID: 37972878 PMCID: PMC10996880 DOI: 10.1016/j.bbi.2023.11.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 10/16/2023] [Accepted: 11/11/2023] [Indexed: 11/19/2023] Open
Abstract
There is a strong male bias in the prevalence of many neurodevelopmental disorders such as autism spectrum disorder. However, the mechanisms underlying this sex bias remain elusive. Infection during the perinatal period is associated with an increased risk of neurodevelopmental disorder development. Here, we used a mouse model of early-life immune activation that reliably induces deficits in social behaviors only in males. We demonstrate that male-biased alterations in social behavior are dependent upon microglial immune signaling and are coupled to alterations in mitochondrial morphology, gene expression, and function specifically within microglia, the innate immune cells of the brain. Additionally, we show that this behavioral and microglial mitochondrial vulnerability to early-life immune activation is programmed by the male-typical perinatal gonadal hormone surge. These findings demonstrate that social behavior in males over the lifespan are regulated by microglia-specific mechanisms that are shaped by events that occur in early development.
Collapse
Affiliation(s)
- Evan A Bordt
- Department of Pediatrics, Lurie Center for Autism, Massachusetts General Hospital for Children, Harvard Medical School, Boston, MA 02129, USA
| | - Haley A Moya
- Department of Pediatrics, Lurie Center for Autism, Massachusetts General Hospital for Children, Harvard Medical School, Boston, MA 02129, USA
| | - Young Chan Jo
- Department of Pediatrics, Lurie Center for Autism, Massachusetts General Hospital for Children, Harvard Medical School, Boston, MA 02129, USA; Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA
| | - Caitlin T Ravichandran
- Department of Pediatrics, Lurie Center for Autism, Massachusetts General Hospital for Children, Harvard Medical School, Boston, MA 02129, USA; McLean Hospital, Belmont, MA 02478, USA
| | - Izabella M Bankowski
- Department of Pediatrics, Lurie Center for Autism, Massachusetts General Hospital for Children, Harvard Medical School, Boston, MA 02129, USA
| | - Alexis M Ceasrine
- Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA
| | - Christopher J McDougle
- Department of Pediatrics, Lurie Center for Autism, Massachusetts General Hospital for Children, Harvard Medical School, Boston, MA 02129, USA; Department of Psychiatry, Harvard Medical School, Boston, MA 02115, USA
| | | | - Staci D Bilbo
- Department of Pediatrics, Lurie Center for Autism, Massachusetts General Hospital for Children, Harvard Medical School, Boston, MA 02129, USA; Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA.
| |
Collapse
|
11
|
Nakajima S, Demers G, Machuca-Parra AI, Pour ZD, Bairamian D, Bouyakdan K, Fisette A, Kabahizi A, Robb J, Rodaros D, Laurent C, Ferreira G, Arbour N, Alquier T, Fulton S. Central activation of the fatty acid sensor GPR120 suppresses microglia reactivity and alleviates sickness- and anxiety-like behaviors. J Neuroinflammation 2023; 20:302. [PMID: 38111048 PMCID: PMC10729532 DOI: 10.1186/s12974-023-02978-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 11/29/2023] [Indexed: 12/20/2023] Open
Abstract
G protein-coupled receptor 120 (GPR120, Ffar4) is a sensor for long-chain fatty acids including omega-3 polyunsaturated fatty acids (n-3 PUFAs) known for beneficial effects on inflammation, metabolism, and mood. GPR120 mediates the anti-inflammatory and insulin-sensitizing effects of n-3 PUFAs in peripheral tissues. The aim of this study was to determine the impact of GPR120 stimulation on microglial reactivity, neuroinflammation and sickness- and anxiety-like behaviors by acute proinflammatory insults. We found GPR120 mRNA to be enriched in both murine and human microglia, and in situ hybridization revealed GPR120 expression in microglia of the nucleus accumbens (NAc) in mice. In a manner similar to or exceeding n-3 PUFAs, GPR120 agonism (Compound A, CpdA) strongly attenuated lipopolysaccharide (LPS)-induced proinflammatory marker expression in primary mouse microglia, including tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β), and inhibited nuclear factor-ĸB translocation to the nucleus. Central administration of CpdA to adult mice blunted LPS-induced hypolocomotion and anxiety-like behavior and reduced TNF-α, IL-1β and IBA-1 (microglia marker) mRNA in the NAc, a brain region modulating anxiety and motivation and implicated in neuroinflammation-induced mood deficits. GPR120 agonist pre-treatment attenuated NAc microglia reactivity and alleviated sickness-like behaviors elicited by central injection TNF-α and IL-1β. These findings suggest that microglial GPR120 contributes to neuroimmune regulation and behavioral changes in response to acute infection and elevated brain cytokines. GPR120 may participate in the protective action of n-3 PUFAs at the neural and behavioral level and offers potential as treatment target for neuroinflammatory conditions.
Collapse
Affiliation(s)
- Shingo Nakajima
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
| | - Geneviève Demers
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
- Department of Nutrition, Université de Montréal, Montréal, QC, H3T1J4, Canada
| | - Arturo Israel Machuca-Parra
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
| | - Zahra Dashtehei Pour
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
- Department of Nutrition, Université de Montréal, Montréal, QC, H3T1J4, Canada
| | - Diane Bairamian
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
- Department of Nutrition, Université de Montréal, Montréal, QC, H3T1J4, Canada
| | - Khalil Bouyakdan
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
| | - Alexandre Fisette
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
- Research Group in Cellular Signaling, Department of Medical Biology, Université du Québec à Trois-Rivières, Trois-Rivières, Canada
| | - Anita Kabahizi
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
- Department of Nutrition, Université de Montréal, Montréal, QC, H3T1J4, Canada
| | - Josephine Robb
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
| | - Demetra Rodaros
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
| | - Cyril Laurent
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
- Department of Neuroscience, Université de Montréal, Montréal, QC, H3T1J4, Canada
| | - Guillaume Ferreira
- Nutrition and Integrative Neurobiology Unit, UMR 1286, INRA-Université de Bordeaux, Bordeaux, France
| | - Nathalie Arbour
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
- Department of Neuroscience, Université de Montréal, Montréal, QC, H3T1J4, Canada
| | - Thierry Alquier
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada
- Department of Medicine, Université de Montréal, Montréal, QC, H3T1J4, Canada
| | - Stephanie Fulton
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, H3T1J4, Canada.
- Department of Nutrition, Université de Montréal, Montréal, QC, H3T1J4, Canada.
| |
Collapse
|
12
|
Mostafa RE, Asaad GF. Meclizine moderates lipopolysaccharide-induced neuroinflammation in mice through the regulation of AKT/ NF-κβ/ERK/JNK signaling pathway. Metab Brain Dis 2023; 38:2797-2806. [PMID: 37733253 PMCID: PMC10663243 DOI: 10.1007/s11011-023-01295-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 09/13/2023] [Indexed: 09/22/2023]
Abstract
Neuroinflammation is identified as significant inflammatory reactions occurring in the central nervous system. Lipopolysaccharide (LPS) stimulates innate immune reactions and is used as an in vivo animal model for the investigation of inflammation. Meclizine (MCLZ) is a histamine antagonist with potential neuroprotective qualities. Forty adult male Swiss albino mice were divided into four groups (n = 10). Group 1 served as a control negative group. Groups 2-4 were injected with LPS (5 mg/kg; i.p). Group 2 served as LPS-control. Groups 3 & 4 were given MCLZ (12.5 & 25 mg/kg; p.o) respectively for 14 days. LPS administration resulted in significant neuroinflammation in mice as was revealed by significant inflammatory histopathological changes and positive immunohistochemical staining of glial fibrillary acidic proteins (GFAP) accompanied by significant elevations of brain tissue contents of interleukin-1-beta (IL-1β), tumor necrosis factor-alpha (TNF-α), nuclear factor kappa-beta (NF-κβ), protein kinase B (AKT), extracellular signal-regulated kinase (ERK) and C-Jun N-Terminal Kinases (JNK). MCLZ treatment significantly down-regulated all the aforementioned parameters in mice brains. Moreover, MCLZ treatment ameliorated the inflammatory histopathological changes and GFAP immunostaining in brain tissues. The current study identifies for the first time the protective anti-neuroinflammatory effects of MCLZ against LPS-induced neuroinflammation in mice. MCLZ protected against neuroinflammation via the amelioration of inflammatory histopathological changes as well as neuronal GFAP immunostaining and down-regulated the AKT/NF-κβ/ERK/JNK signaling pathway. MCLZ is anticipated as a potential protective candidate for the addition to the treatment protocol of neuroinflammation.
Collapse
Affiliation(s)
- Rasha E Mostafa
- Department of Pharmacology, Medical Research and Clinical Studies Institute, National Research Centre, 33 ELBohouth St. (former EL Tahrir St.), P.O. 12622, Dokki, Cairo, Egypt.
| | - Gihan F Asaad
- Department of Pharmacology, Medical Research and Clinical Studies Institute, National Research Centre, 33 ELBohouth St. (former EL Tahrir St.), P.O. 12622, Dokki, Cairo, Egypt
| |
Collapse
|
13
|
Sharp RC, Guenther DT, Farrer MJ. Experimental procedures for flow cytometry of wild-type mouse brain: a systematic review. Front Immunol 2023; 14:1281705. [PMID: 38022545 PMCID: PMC10646240 DOI: 10.3389/fimmu.2023.1281705] [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: 08/22/2023] [Accepted: 10/02/2023] [Indexed: 12/01/2023] Open
Abstract
Objective The aim of this study was to systematically review the neuroimmunology literature to determine the average immune cell counts reported by flow cytometry in wild-type (WT) homogenized mouse brains. Background Mouse models of gene dysfunction are widely used to study age-associated neurodegenerative disorders, including Alzheimer's disease and Parkinson's disease. The importance of the neuroimmune system in these multifactorial disorders has become increasingly evident, and methods to quantify resident and infiltrating immune cells in the brain, including flow cytometry, are necessary. However, there appears to be no consensus on the best approach to perform flow cytometry or quantify/report immune cell counts. The development of more standardized methods would accelerate neuroimmune discovery and validation by meta-analysis. Methods There has not yet been a systematic review of 'neuroimmunology' by 'flow cytometry' via examination of the PROSPERO registry. A protocol for a systematic review was subsequently based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) using the Studies, Data, Methods, and Outcomes (SDMO) criteria. Literature searches were conducted in the Google Scholar and PubMed databases. From that search, 900 candidate studies were identified, and 437 studies were assessed for eligibility based on formal exclusion criteria. Results Out of the 437 studies reviewed, 58 were eligible for inclusion and comparative analysis. Each study assessed immune cell subsets within homogenized mouse brains and used flow cytometry. Nonetheless, there was considerable variability in the methods, data analysis, reporting, and results. Descriptive statistics have been presented on the study designs and results, including medians with interquartile ranges (IQRs) and overall means with standard deviations (SD) for specific immune cell counts and their relative proportions, within and between studies. A total of 58 studies reported the most abundant immune cells within the brains were TMEM119+ microglia, bulk CD4+ T cells, and bulk CD8+ T cells. Conclusion Experiments to conduct and report flow cytometry data, derived from WT homogenized mouse brains, would benefit from a more standardized approach. While within-study comparisons are valid, the variability in methods of counting of immune cell populations is too broad for meta-analysis. The inclusion of a minimal protocol with more detailed methods, controls, and standards could enable this nascent field to compare results across studies.
Collapse
Affiliation(s)
| | | | - Matthew J. Farrer
- Department of Neurology, McKnight Brain Institute, University of Florida, Gainesville, FL, United States
| |
Collapse
|
14
|
Vidinopoulos K, Azman Z, Somers A, Zahra VA, Thiel A, Lu H, Pham Y, Tran NT, Allison BJ, Herlenius E, Hooper S, Galinsky R, Polglase GR. Mechanical ventilation induces brainstem inflammation in preterm fetal sheep. Front Pediatr 2023; 11:1225294. [PMID: 37936886 PMCID: PMC10626530 DOI: 10.3389/fped.2023.1225294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/25/2023] [Indexed: 11/09/2023] Open
Abstract
Background Preterm infants have immature respiratory drive and often require prolonged periods of mechanical ventilation. Prolonged mechanical ventilation induces systemic inflammation resulting in ventilation-induced brain injury, however its effect on brainstem respiratory centers is unknown. We aimed to determine the effects of 24 h of mechanical ventilation on inflammation and injury in brainstem respiratory centres of preterm fetal sheep. Methods Preterm fetal sheep at 110 ± 1 days (d) gestation were instrumented to provide mechanical ventilation in utero. At 112 ± 1 d gestation, fetuses received either mechanical ventilation (VENT; n = 7; 3 ml/kg) for 24 h, or no ventilation (CONT; n = 6). At post-mortem, fetal brainstems were collected for assessment of mRNA and histological markers of inflammation and injury. Results In utero ventilation (IUV) did not alter any blood-gas parameters. IUV significantly increased systemic IL-6 and IL-8 concentrations over the 24 h period compared to CONT. The number of ameboid microglia within the nucleus tractus solitarius and the raphe nucleus increased in VENT fetuses (p < 0.05 for both vs. control). The % area fraction of GFAP + staining was not significantly higher within the preBötzinger complex (p = 0.067) and retrotrapezoid nucleus and parafacial respiratory group (p = 0.057) in VENT fetuses compared to CONT. Numbers of caspase-3 and TUNEL-positive cells were similar between groups. Gene expression (mRNA) levels of inflammation, injury, cell death and prostaglandin synthesis within the brainstem were similar between groups. Conclusion Mechanical ventilation induces a systemic inflammatory response with only moderate inflammatory effects within the brainstem respiratory centres of preterm fetal sheep.
Collapse
Affiliation(s)
- Kayla Vidinopoulos
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia
| | - Zahrah Azman
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia
| | - Ainsley Somers
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia
| | - Valerie A. Zahra
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
| | - Alison Thiel
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
| | - Hui Lu
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
| | - Yen Pham
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
| | - Nhi Thao Tran
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia
| | - Beth J. Allison
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia
| | - Eric Herlenius
- Department of Women’s and Children’s Health, Astrid Lindgren Children’s Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Stuart Hooper
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia
| | - Robert Galinsky
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia
| | - Graeme R. Polglase
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia
| |
Collapse
|
15
|
Tansey M, Boles J, Uriarte Huarte O. Microfluidics-free single-cell genomics reveals complex central-peripheral immune crosstalk in the mouse brain during peripheral inflammation. RESEARCH SQUARE 2023:rs.3.rs-3428910. [PMID: 37886510 PMCID: PMC10602178 DOI: 10.21203/rs.3.rs-3428910/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Inflammation is a realized detriment to brain health in a growing number of neurological diseases, but querying neuroinflammation in its cellular complexity remains a challenge. This manuscript aims to provide a reliable and accessible strategy for examining the brain's immune system. We compare the efficacy of cell isolation methods in producing ample and pure immune samples from mouse brains. Then, with the high-input single-cell genomics platform PIPseq, we generate a rich neuroimmune dataset containing microglia and many peripheral immune populations. To demonstrate this strategy's utility, we interrogate the well-established model of LPS-induced neuroinflammation with single-cell resolution. We demonstrate the activation of crosstalk between microglia and peripheral phagocytes and highlight the unique contributions of microglia and peripheral immune cells to neuroinflammation. Our approach enables the high-depth evaluation of inflammation in longstanding rodent models of neurological disease to reveal novel insight into the contributions of the immune system to brain health.
Collapse
|
16
|
Fang S, Wu Z, Guo Y, Zhu W, Wan C, Yuan N, Chen J, Hao W, Mo X, Guo X, Fan L, Li X, Chen J. Roles of microglia in adult hippocampal neurogenesis in depression and their therapeutics. Front Immunol 2023; 14:1193053. [PMID: 37881439 PMCID: PMC10597707 DOI: 10.3389/fimmu.2023.1193053] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 09/20/2023] [Indexed: 10/27/2023] Open
Abstract
Adult hippocampal neurogenesis generates functional neurons from neural progenitor cells in the hippocampal dentate gyrus (DG) to complement and repair neurons and neural circuits, thus benefiting the treatment of depression. Increasing evidence has shown that aberrant microglial activity can disrupt the appropriate formation and development of functional properties of neurogenesis, which will play a crucial role in the occurrence and development of depression. However, the mechanisms of the crosstalk between microglia and adult hippocampal neurogenesis in depression are not yet fully understood. Therefore, in this review, we first introduce recent discoveries regarding the roles of microglia and adult hippocampal neurogenesis in the etiology of depression. Then, we systematically discuss the possible mechanisms of how microglia regulate adult hippocampal neurogenesis in depression according to recent studies, which involve toll-like receptors, microglial polarization, fractalkine-C-X3-C motif chemokine receptor 1, hypothalamic-pituitary-adrenal axis, cytokines, brain-derived neurotrophic factor, and the microbiota-gut-brain axis, etc. In addition, we summarize the promising drugs that could improve the adult hippocampal neurogenesis by regulating the microglia. These findings will help us understand the complicated pathological mechanisms of depression and shed light on the development of new treatment strategies for this disease.
Collapse
Affiliation(s)
- Shaoyi Fang
- Formula-Pattern of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Zhibin Wu
- Formula-Pattern of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Yali Guo
- Formula-Pattern of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Wenjun Zhu
- Formula-Pattern of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Chunmiao Wan
- Formula-Pattern of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Naijun Yuan
- Formula-Pattern of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
- Shenzhen People’s Hospital, 2Clinical Medical College, Jinan University, Shenzhen, China
| | - Jianbei Chen
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Wenzhi Hao
- Formula-Pattern of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Xiaowei Mo
- Formula-Pattern of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Xiaofang Guo
- Formula-Pattern of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Lili Fan
- Formula-Pattern of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Xiaojuan Li
- Formula-Pattern of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Jiaxu Chen
- Formula-Pattern of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| |
Collapse
|
17
|
Lushchak O, Orru M, Strilbytska O, Berezovskyi V, Cherkas A, Storey KB, Bayliak M. Metabolic and immune dysfunctions in post-traumatic stress disorder: what can we learn from animal models? EXCLI JOURNAL 2023; 22:928-945. [PMID: 38023568 PMCID: PMC10630527 DOI: 10.17179/excli2023-6391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 08/29/2023] [Indexed: 12/01/2023]
Abstract
Highly stressful experiences such as terrorist attacks, domestic and sexual violence may lead to persistent pathological symptoms such as those seen in posttraumatic stress disorder (PTSD). There is growing evidence of multiple metabolic and immune disorders underlying the etiology and maintenance of PTSD. However, changes in the functioning of various systems and organs associated with PTSD are not well understood. Studies of reliable animal models is one of the effective scientific tools that can be used to gain insight into the role of metabolism and immunity in the comorbidity associated with PTSD. Since much progress has been made using animal models to understand mechanisms of PTSD, we summarized metabolic and immune dysfunction in mice and humans to compare certain outcomes associated with PTSD. The systemic effects of PTSD include chronic activation of the sympathetic nervous system (psycho-emotional stress), that leads to impairment of the function of the immune system, increased release of stress hormones, and metabolic changes. We discuss PTSD as a multisystem disease with its neurological, immunological, and metabolic components.
Collapse
Affiliation(s)
- Oleh Lushchak
- Precarpathian National University, Ivano-Frankivsk, Ukraine
- Research and Development University, Ivano-Frankivsk, Ukraine
| | - Marco Orru
- Precarpathian National University, Ivano-Frankivsk, Ukraine
| | | | | | - Andriy Cherkas
- Research and Development University, Ivano-Frankivsk, Ukraine
| | | | - Maria Bayliak
- Precarpathian National University, Ivano-Frankivsk, Ukraine
| |
Collapse
|
18
|
Liu X, Yang L, Zhang G, Ling J. Neuroprotective Effects of Phenolic Antioxidant Tert-butylhydroquinone (tBHQ) in Brain Diseases. Mol Neurobiol 2023; 60:4909-4923. [PMID: 37191855 DOI: 10.1007/s12035-023-03370-3] [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: 10/18/2022] [Accepted: 04/25/2023] [Indexed: 05/17/2023]
Abstract
Human life and health are gravely threatened by brain diseases. The onset and progression of the illnesses are influenced by a variety of factors, including pathogenic causes, environmental factors, mental issues, etc. According to scientific studies, neuroinflammation and oxidative stress play a significant role in the development and incidence of brain diseases by producing pro-inflammatory cytokines and oxidative tissue damage to induce inflammation and apoptosis. Neuroinflammation, oxidative stress, and oxidative stress-related changes are inseparable factors in the etiology of several brain diseases. Numerous neurodegenerative diseases have undergone substantial research into the therapeutic alternatives that target oxidative stress, the function of oxidative stress, and the possible therapeutic use of antioxidants. Formerly, tBHQ is a synthetic phenolic antioxidant, which has been widely used as a food additive. According to recent researches, tBHQ can suppress the processes that lead to neuroinflammation and oxidative stress, which offers a fresh approach to treating brain diseases. In order to achieve the goal of decreasing inflammation and apoptosis, tBHQ is a specialized nuclear factor erythroid 2-related factor (Nrf2) activator that decreases oxidative stress and enhances antioxidant status by upregulating the Nrf2 gene and reducing nuclear factor kappa-B (NF-κB) activity. This article reviews the effects of tBHQ on neuroinflammation and oxidative stress in recent years and looks into how tBHQ inhibits neuroinflammation and oxidative stress through human, animal, and cell experiments to play a neuroprotective role in Alzheimer's disease (AD), stroke, depression, and Parkinson's disease (PD). It is anticipated that this article will be useful as a reference for upcoming research and the creation of drugs to treat brain diseases.
Collapse
Affiliation(s)
- Xiaojin Liu
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
- Department of Pharmacy, Shandong Medical College, Linyi, 276000, China
| | - Luodan Yang
- College of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China
| | - Guoying Zhang
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| | - Jianya Ling
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China.
| |
Collapse
|
19
|
Patil CR, Suryakant Gawli C, Bhatt S. Targeting inflammatory pathways for treatment of the major depressive disorder. Drug Discov Today 2023; 28:103697. [PMID: 37422168 DOI: 10.1016/j.drudis.2023.103697] [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: 11/06/2022] [Revised: 06/27/2023] [Accepted: 07/04/2023] [Indexed: 07/10/2023]
Abstract
Current treatments modalities for major depressive disorder (MDD) mainly target the monoaminergic neurotransmission. However, the therapeutic inadequacy and adverse effects confine the use of these conventional antidepressants to a limited subset of MDD patients. The classical antidepressants are increasingly proving unsatisfactory in tackling the treatment-resistant depression (TRD). Hence, the focus of treatment is shifting to alternative pathogenic pathways involved in depression. Preclinical and clinical evidences accumulated across the last decades have unequivocally affirmed the causative role of immuno-inflammatory pathways in the progression of depression. There is an upsurge in the clinical evaluations of the drugs having anti-inflammatory effects as antidepressants. This review highlights the molecular mechanisms connecting the inflammatory pathways to the MDD and current clinical status of inflammation modulating drugs in the treatment of MDD.
Collapse
Affiliation(s)
- Chandragauda R Patil
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Karwand Naka, Shirpur 425405, Maharashtra, India
| | - Chandrakant Suryakant Gawli
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Karwand Naka, Shirpur 425405, Maharashtra, India
| | - Shvetank Bhatt
- School of Health Sciences and Technology, Dr. Vishwanath Karad MIT World Peace University, Pune 411038, Maharashtra, India.
| |
Collapse
|
20
|
Inaba T, Yamashiro K, Kurita N, Ueno Y, Miyamoto N, Hira K, Nakajima S, Kijima C, Nakaguro R, Urabe T, Hattori N. Microbial lipopolysaccharide-induced inflammation contributes to cognitive impairment and white matter lesion progression in diet-induced obese mice with chronic cerebral hypoperfusion. CNS Neurosci Ther 2023; 29 Suppl 1:200-212. [PMID: 37287396 PMCID: PMC10314110 DOI: 10.1111/cns.14301] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
AIMS White matter lesions (WMLs) are involved in the pathological processes leading to cognitive decline and dementia. We examined the mechanisms underlying the exacerbation of ischemia-induced cognitive impairment and WMLs by diet-induced obesity, including lipopolysaccharide (LPS)-triggered neuroinflammation via toll-like receptor (TLR) 4. METHODS Wild-type (WT) and TLR4-knockout (KO) C57BL/6 mice were fed a high-fat diet (HFD) or low-fat diet (LFD), and subjected to bilateral carotid artery stenosis (BCAS). Diet groups were compared for changes in gut microbiota, intestinal permeability, systemic inflammation, neuroinflammation, WML severity, and cognitive dysfunction. RESULTS In WT mice, HFD induced obesity and increased cognitive impairment and WML severity compared with LFD-fed mice following BCAS. HFD caused gut dysbiosis and increased intestinal permeability, and plasma LPS and pro-inflammatory cytokine concentrations. Furthermore, HFD-fed mice had higher LPS levels and higher neuroinflammatory status, including increased TLR4 expression, in WMLs. In TLR4-KO mice, HFD also caused obesity and gut dysbiosis but did not increase cognitive impairment or WML severity after BCAS. No difference was found between HFD- and LFD-fed KO mice for LPS levels or inflammatory status in either plasma or WMLs. CONCLUSION Inflammation triggered by LPS-TLR4 signaling may mediate obesity-associated exacerbation of cognitive impairment and WMLs from brain ischemia.
Collapse
Affiliation(s)
- Toshiki Inaba
- Department of NeurologyJuntendo University School of MedicineTokyoJapan
| | - Kazuo Yamashiro
- Department of NeurologyJuntendo University School of MedicineTokyoJapan
- Department of NeurologyJuntendo University Urayasu HospitalChibaJapan
| | - Naohide Kurita
- Department of NeurologyJuntendo University School of MedicineTokyoJapan
- Department of NeurologyJuntendo University Urayasu HospitalChibaJapan
| | - Yuji Ueno
- Department of NeurologyJuntendo University School of MedicineTokyoJapan
- Department of NeurologyUniversity of YamanashiYamanashiJapan
| | - Nobukazu Miyamoto
- Department of NeurologyJuntendo University School of MedicineTokyoJapan
| | - Kenichiro Hira
- Department of NeurologyJuntendo University School of MedicineTokyoJapan
| | - Sho Nakajima
- Department of NeurologyJuntendo University School of MedicineTokyoJapan
- Department of NeurologyUniversity of YamanashiYamanashiJapan
| | - Chikage Kijima
- Department of NeurologyJuntendo University School of MedicineTokyoJapan
| | | | - Takao Urabe
- Department of NeurologyJuntendo University Urayasu HospitalChibaJapan
| | - Nobutaka Hattori
- Department of NeurologyJuntendo University School of MedicineTokyoJapan
| |
Collapse
|
21
|
Kawada K, Ishida T, Jobu K, Morisawa S, Nishida M, Tamura N, Yoshioka S, Miyamura M. Glycyrrhizae Radix suppresses lipopolysaccharide- and diazepam-induced nerve inflammation in the hippocampus, and contracts the duration of pentobarbital- induced loss of righting reflex in a mouse model. J Nat Med 2023; 77:561-571. [PMID: 37115471 DOI: 10.1007/s11418-023-01700-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 04/10/2023] [Indexed: 04/29/2023]
Abstract
Nerve inflammation is linked to the development of various neurological disorders. This study aimed to examine whether Glycyrrhizae Radix effectively influences the duration of the pentobarbital-induced loss of righting reflex, which may increase in a mouse model of lipopolysaccharide (LPS)-induced nerve inflammation and diazepam-induced γ-aminobutyric acid receptor hypersensitivity. Furthermore, we examined the anti-inflammatory effects of Glycyrrhizae Radix extract on LPS-stimulated BV2 microglial cells, in vitro. Treatment with Glycyrrhizae Radix significantly decreased the duration of pentobarbital-induced loss of righting reflex in the mouse model. Furthermore, treatment with Glycyrrhizae Radix significantly attenuated the LPS-induced increases in interleukin-1β, interleukin-6, and tumor necrosis factor-alpha at the mRNA level, and it significantly reduced the number of ionized calcium-binding adapter molecule-1-positive cells in the hippocampal dentate gyrus 24 h after LPS treatment. Treatment with Glycyrrhizae Radix also suppressed the release of nitric oxide, interleukin-1β, interleukin-6, and tumor necrosis factor protein in culture supernatants of LPS-stimulated BV2 cells. In addition, glycyrrhizic acid and liquiritin, active ingredients of Glycyrrhizae Radix extract, reduced the duration of pentobarbital-induced loss of righting reflex. These findings suggest that Glycyrrhizae Radix, as well as its active ingredients, glycyrrhizic acid and liquiritin, may be effective therapeutic agents for the treatment of nerve inflammation-induced neurological disorders.
Collapse
Affiliation(s)
- Kei Kawada
- Graduate School of Integrated Arts and Sciences, Kochi University, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan.
- Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko-cho, Nankoku, Kochi, Japan.
| | - Tomoaki Ishida
- Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko-cho, Nankoku, Kochi, Japan
| | - Kohei Jobu
- Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko-cho, Nankoku, Kochi, Japan
| | - Shumpei Morisawa
- Graduate School of Integrated Arts and Sciences, Kochi University, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
- Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko-cho, Nankoku, Kochi, Japan
| | - Motoki Nishida
- Graduate School of Integrated Arts and Sciences, Kochi University, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
- Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko-cho, Nankoku, Kochi, Japan
| | - Naohisa Tamura
- Graduate School of Integrated Arts and Sciences, Kochi University, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
- Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko-cho, Nankoku, Kochi, Japan
| | - Saburo Yoshioka
- Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko-cho, Nankoku, Kochi, Japan
| | - Mitsuhiko Miyamura
- Graduate School of Integrated Arts and Sciences, Kochi University, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
- Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko-cho, Nankoku, Kochi, Japan
| |
Collapse
|
22
|
Peng SJ, Feng Y, Li X, Wang XX, Wang Y, Zhou BT, Liu Y, Liu T, Wu YC. Thymopentin (TP-5) prevents lipopolysaccharide-induced neuroinflammation and dopaminergic neuron injury by inhibiting the NF-κB/NLRP3 signaling pathway. Int Immunopharmacol 2023; 119:110109. [PMID: 37121113 DOI: 10.1016/j.intimp.2023.110109] [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: 09/14/2022] [Revised: 03/03/2023] [Accepted: 03/24/2023] [Indexed: 05/02/2023]
Abstract
Neuroinflammation plays a pivotal role in neurodegenerative diseases, including Parkinson's disease, Alzheimer's disease, amyotrophic lateral sclerosis and stroke, and is accompanied by excessive release of inflammatory cytokines and mediators by activated microglia. Microglial inflammatory response inhibition may be an effective strategy for preventing inflammatory disorders. However, the reciprocal connections between the central nervous system (CNS) and immune system have not been elucidated. Thus far, these links have been proven to mainly involve immuno- and neuropeptides. The pentapeptide thymopentin (TP-5) exerts a significant immunomodulatory effect; however, its antineuroinflammatory effects and underlying mechanism are still unclear. In this study, lipopolysaccharide (LPS) was used to establish an inflammation model, and the therapeutic effect of TP-5 was evaluated. Behavioral tests showed that TP-5 treatment could improve the performance of LPS-treated mice in the open field and pole test, but not hanging wire test. TP-5 also attenuated neuronal lesions in the brains of LPS-treated mice. TP-5 reduced cytotoxicity and morphological changes in activated microglia. Label-free quantitative analysis indicated that the expression of multiple proteins and the activation of associated signaling pathways were altered by TP-5. Moreover, TP-5 could inhibit LPS-induced neuroinflammation in the brain and BV2 microglia and the expression of major genes in the NF-κB/NLRP3 signaling pathway. Additionally, tyrosine hydroxylase (TH) expression downregulation was rescued in the LPS + TP-5 group compared with the LPS group. We conclude that TP-5 exerts neuroprotection by alleviating LPS-induced inflammatory damage and dopaminergic neurodegeneration. The protective effect of TP-5 may involve the NF-κB/NLRP3 signaling pathway.
Collapse
Affiliation(s)
- Si-Jia Peng
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Ya Feng
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Xuan Li
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Xi-Xi Wang
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Yu Wang
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Bu-Tian Zhou
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Ye Liu
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Te Liu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, China.
| | - Yun-Cheng Wu
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China.
| |
Collapse
|
23
|
Banka AL, Guevara MV, Brannon ER, Nguyen NQ, Song S, Cady G, Pinsky DJ, Uhrich KE, Adili R, Holinstat M, Eniola-Adefeso O. Cargo-free particles divert neutrophil-platelet aggregates to reduce thromboinflammation. Nat Commun 2023; 14:2462. [PMID: 37117163 PMCID: PMC10144907 DOI: 10.1038/s41467-023-37990-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 04/11/2023] [Indexed: 04/30/2023] Open
Abstract
The combination of inflammation and thrombosis is a hallmark of many cardiovascular diseases. Under such conditions, platelets are recruited to an area of inflammation by forming platelet-leukocyte aggregates via interaction of PSGL-1 on leukocytes and P-selectin on activated platelets, which can bind to the endothelium. While particulate drug carriers have been utilized to passively redirect leukocytes from areas of inflammation, the downstream impact of these carriers on platelet accumulation in thromboinflammatory conditions has yet to be studied. Here, we explore the ability of polymeric particles to divert platelets away from inflamed blood vessels both in vitro and in vivo. We find that untargeted and targeted micron-sized polymeric particles can successfully reduce platelet adhesion to an inflamed endothelial monolayer in vitro in blood flow systems and in vivo in a lipopolysaccharide-induced, systemic inflammation murine model. Our data represent initial work in developing cargo-free, anti-platelet therapeutics specifically for conditions of thromboinflammation.
Collapse
Affiliation(s)
- Alison L Banka
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - M Valentina Guevara
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Emma R Brannon
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Nhien Q Nguyen
- Department of Chemistry, University of California Riverside, Riverside, CA, 92521, USA
| | - Shuang Song
- Department of Chemistry, University of California Riverside, Riverside, CA, 92521, USA
| | - Gillian Cady
- Division of Cardiovascular Medicine, Samuel and Jean Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI, 48109, USA
| | - David J Pinsky
- Division of Cardiovascular Medicine, Samuel and Jean Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Kathryn E Uhrich
- Department of Chemistry, University of California Riverside, Riverside, CA, 92521, USA
| | - Reheman Adili
- Department of Pharmacology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Michael Holinstat
- Division of Cardiovascular Medicine, Samuel and Jean Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Pharmacology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Omolola Eniola-Adefeso
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA.
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA.
- Macromolecular Science and Engineering Program, University of Michigan, Ann Arbor, MI, 48109, USA.
| |
Collapse
|
24
|
Wu Z, Liu P, Huang B, Deng S, Song Z, Huang X, Yang J, Cheng S. A novel Alzheimer's disease prognostic signature: identification and analysis of glutamine metabolism genes in immunogenicity and immunotherapy efficacy. Sci Rep 2023; 13:6895. [PMID: 37106067 PMCID: PMC10140060 DOI: 10.1038/s41598-023-33277-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Alzheimer's disease (AD) is characterized as a distinct onset and progression of cognitive and functional decline associated with age, as well as a specific neuropathology. It has been discovered that glutamine (Gln) metabolism plays a crucial role in cancer. However, a full investigation of its role in Alzheimer's disease is still missing. This study intended to find and confirm potential Gln-related genes associated with AD using bioinformatics analysis. The discovery of GlnMgs was made possible by the intersection of the WGCNA test and 26 Gln-metabolism genes (GlnMgs). GlnMgs' putative biological functions and pathways were identified using GSVA. The LASSO method was then used to identify the hub genes as well as the diagnostic efficiency of the four GlnMgs in identifying AD. The association between hub GlnMgs and clinical characteristics was also studied. Finally, the GSE63060 was utilized to confirm the levels of expression of the four GlnMgs. Four GlnMgs were discovered (ATP5H, NDUFAB1, PFN2, and SPHKAP). For biological function analysis, cell fate specification, atrioventricular canal development, and neuron fate specification were emphasized. The diagnostic ability of the four GlnMgs in differentiating AD exhibited a good value. This study discovered four GlnMgs that are linked to AD. They shed light on potential new biomarkers for AD and tracking its progression.
Collapse
Affiliation(s)
- Zixuan Wu
- Hunan University of Chinese Medicine, Changsha, 410128, China
| | - Ping Liu
- Hunan University of Chinese Medicine, Changsha, 410128, China
| | - Baisheng Huang
- Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Sisi Deng
- Hunan University of Chinese Medicine, Changsha, 410128, China
| | - Zhenyan Song
- Hunan University of Chinese Medicine, Changsha, 410128, China
| | - Xindi Huang
- Hunan University of Chinese Medicine, Changsha, 410128, China
| | - Jing Yang
- Hunan University of Chinese Medicine, Changsha, 410128, China.
| | - Shaowu Cheng
- Hunan University of Chinese Medicine, Changsha, 410128, China.
| |
Collapse
|
25
|
Zou L, Tian Y, Wang Y, Chen D, Lu X, Zeng Z, Chen Z, Lin C, Liang Y. High-cholesterol diet promotes depression- and anxiety-like behaviors in mice by impact gut microbe and neuroinflammation. J Affect Disord 2023; 327:425-438. [PMID: 36738999 DOI: 10.1016/j.jad.2023.01.122] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
Neuropsychiatric disorders, including anxiety and depression, are one of the most common mental illnesses worldwide. A growing body of evidence shows that there is a complex relationship between dietary patterns and mental health. In our study, C57BL/6J mice were divided into three groups: control diet group (CON, 10 % kcal fat), high-cholesterol diet model group (HCD, 42.0 % kcal fat + 1.25 % kcal Cholesterol), and chronic restraint stress group (CRS, 10 % kcal fat) which as a positive control group for the depression model. Six weeks later, depressive- and anxiety-like behavior were evaluated for using the OFT, SPT and TST. Glucose intolerance and liver fat were detected by IGTT and liver lipid kit. The expression of peripheral and central inflammation was detected by LEGEND plex kits. 5-HT (also named 5-hydroxytryptamine, 5-HT) and related receptors expression were monitored by ELISA, RT-PCR and Western blot. Meantime, gut microbe of stool samples was performed by 16S rRNA gene sequencing. Similar to CRS model, short-term HCD intervention induced anxiety and depression-like behavior behavioral abnormalities in mice. HCD consumption resulted in significantly increased body weight, liver fat (LDL-C, TC, TG), peripheral inflammation (IL-1β, MCP-1, IL-17A) and neuroinflammation (MCP-1). The concentration of 5-HT increased in the hippocampus, meanwhile, the expression of 5-HT receptor HTR2A was distinct in different regions of the brain tissue. More importantly, we found that compared with the CON diet, HCD induced the decrease of intestinal flora diversity, especially the decrease the relative abundance of Akkermansia_muciniphila, which was statistically significant. Further, Pearson correlation analysis showed that Akkermansia_muciniphila was significantly negatively correlated with the concentration of MCP-1, IL-17A in serum and 5-HT in hippocampus. Therefore, we speculated that the disorder of neuroinflammation induced by HCD consumption promotes depression- and anxiety-like behaviors in mice through the gut microbe.
Collapse
Affiliation(s)
- Lili Zou
- School of Medicine, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | - Yaling Tian
- School of Medicine, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | - Yuanfei Wang
- School of Nursing, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | - Dongliang Chen
- School of Nursing, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | - Xiaomin Lu
- School of Nursing, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | - Ze Zeng
- School of Nursing, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | - Zumin Chen
- School of Nursing, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | - Chenli Lin
- School of Medicine, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China; Health Science Center, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China.
| | - Yinji Liang
- School of Nursing, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China; Health Science Center, Jinan University, No. 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China.
| |
Collapse
|
26
|
Yao J, Chen C, Guo Y, Yang Y, Liu X, Chu S, Ai Q, Zhang Z, Lin M, Yang S, Chen N. A Review of Research on the Association between Neuron-Astrocyte Signaling Processes and Depressive Symptoms. Int J Mol Sci 2023; 24:ijms24086985. [PMID: 37108148 PMCID: PMC10139177 DOI: 10.3390/ijms24086985] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/02/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
Depression is a mental illness that has a serious negative impact on physical and mental health. The pathophysiology of depression is still unknown, and therapeutic medications have drawbacks, such as poor effectiveness, strong dependence, adverse drug withdrawal symptoms, and harmful side effects. Therefore, the primary purpose of contemporary research is to understand the exact pathophysiology of depression. The connection between astrocytes, neurons, and their interactions with depression has recently become the focus of great research interest. This review summarizes the pathological changes of neurons and astrocytes, and their interactions in depression, including the alterations of mid-spiny neurons and pyramidal neurons, the alterations of astrocyte-related biomarkers, and the alterations of gliotransmitters between astrocytes and neurons. In addition to providing the subjects of this research and suggestions for the pathogenesis and treatment techniques of depression, the intention of this article is to more clearly identify links between neuronal-astrocyte signaling processes and depressive symptoms.
Collapse
Affiliation(s)
- Jiao Yao
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Cong Chen
- School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Yi Guo
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China
- School of Acupuncture & Tuina and Rehabilitation, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Yantao Yang
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Xinya Liu
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Shifeng Chu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Qidi Ai
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Zhao Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Meiyu Lin
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Songwei Yang
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410208, China
| | - Naihong Chen
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| |
Collapse
|
27
|
Afroz T, Chevalier E, Audrain M, Dumayne C, Ziehm T, Moser R, Egesipe AL, Mottier L, Ratnam M, Neumann M, Havas D, Ollier R, Piorkowska K, Chauhan M, Silva AB, Thapa S, Stöhr J, Bavdek A, Eligert V, Adolfsson O, Nelson PT, Porta S, Lee VMY, Pfeifer A, Kosco-Vilbois M, Seredenina T. Immunotherapy targeting the C-terminal domain of TDP-43 decreases neuropathology and confers neuroprotection in mouse models of ALS/FTD. Neurobiol Dis 2023; 179:106050. [PMID: 36809847 DOI: 10.1016/j.nbd.2023.106050] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/10/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Effective therapies are urgently needed to safely target TDP-43 pathology as it is closely associated with the onset and development of devastating diseases such as frontotemporal lobar degeneration with TDP-43 pathology (FTLD-TDP) and amyotrophic lateral sclerosis (ALS). In addition, TDP-43 pathology is present as a co-pathology in other neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease. Our approach is to develop a TDP-43-specific immunotherapy that exploits Fc gamma-mediated removal mechanisms to limit neuronal damage while maintaining physiological TDP-43 function. Thus, using both in vitro mechanistic studies in conjunction with the rNLS8 and CamKIIa inoculation mouse models of TDP-43 proteinopathy, we identified the key targeting domain in TDP-43 to accomplish these therapeutic objectives. Targeting the C-terminal domain of TDP-43 but not the RNA recognition motifs (RRM) reduces TDP-43 pathology and avoids neuronal loss in vivo. We demonstrate that this rescue is dependent on Fc receptor-mediated immune complex uptake by microglia. Furthermore, monoclonal antibody (mAb) treatment enhances phagocytic capacity of ALS patient-derived microglia, providing a mechanism to restore the compromised phagocytic function in ALS and FTD patients. Importantly, these beneficial effects are achieved while preserving physiological TDP-43 activity. Our findings demonstrate that a mAb targeting the C-terminal domain of TDP-43 limits pathology and neurotoxicity, enabling clearance of misfolded TDP-43 through microglia engagement, and supporting the clinical strategy to target TDP-43 by immunotherapy. SIGNIFICANCE STATEMENT: TDP-43 pathology is associated with various devastating neurodegenerative disorders with high unmet medical needs such as frontotemporal dementia (FTD), amyotrophic lateral sclerosis (ALS) and Alzheimer's disease. Thus, safely and effectively targeting pathological TDP-43 represents a key paradigm for biotechnical research as currently there is little in clinical development. After years of research, we have determined that targeting the C-terminal domain of TDP-43 rescues multiple patho-mechanisms involved in disease progression in two animal models of FTD/ALS. In parallel, importantly, our studies establish that this approach does not alter the physiological functions of this ubiquitously expressed and indispensable protein. Together, our findings substantially contribute to the understanding of TDP-43 pathobiology and support the prioritization for clinical testing of immunotherapy approaches targeting TDP-43.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Manuela Neumann
- Department of Neuropathology, University of Tübingen, Tübingen, Germany; DZNE, German Center for Neurodegenerative Diseases, Tübingen, Germany
| | | | | | | | | | | | | | | | | | | | | | | | - Sílvia Porta
- Center for Neurodegenerative Disease Research (CNDR), Institute on Aging, Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Virginia M-Y Lee
- Center for Neurodegenerative Disease Research (CNDR), Institute on Aging, Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | | | | |
Collapse
|
28
|
Chen W, Chen Y, Cheng W, Li P, Shen J, Tong T, Lai L, Yan S, Huang Z, Li J, Huang S, Meng X. Acupuncture exerts preventive effects in rats of chronic unpredictable mild stress: The involvement of inflammation in amygdala and brain-spleen axis. Biochem Biophys Res Commun 2023; 646:86-95. [PMID: 36706710 DOI: 10.1016/j.bbrc.2023.01.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/22/2022] [Accepted: 01/14/2023] [Indexed: 01/17/2023]
Abstract
BACKGROUND Acupuncture has shown the preventive effects on depression in rats with chronic unpredictable mild stress (CUMS). However, the mechanisms of acupuncture for preventing depression still need to be explored. In the study, acupuncture was applied to a rat depression model of CUMS, high-mobility group box 1(HMGB1)/toll-like receptor 4 (TLR4) and brain-spleen axis were assessed. METHODS Male Sprague Dawley (SD) rats were exposed to CUMS with two stressors per day for 28 days. In the meantime, manual acupuncture (at GV16 and GV23 acupoints, once every other day) and fluoxetine gavage (2.1 mg/kg, 0.21 mg/mL) were administered daily post CUMS stressors. Behavioral tests and biological detection methods were conducted in sequence to evaluate depression-like phenotypes in rats. RESULTS The results showed CUMS induced depression-like behaviors, hyper-activation of HMGB1/TLR4 signaling pathway, elevated inflammation in amygdala and peripheral blood, and hyperactivation of hypothalamic-pituitary-adrenal (HPA) axis. These changes could be prevented and reversed by acupuncture to varying extents. CONCLUSION Acupuncture prevented and ameliorated depression-like symptoms induced by CUMS, possibly via regulating inflammation through brain-spleen axis mediated by HMGB1/TLR4 signaling pathway and HPA axis regulation.
Collapse
Affiliation(s)
- Wenjie Chen
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, PR China; Shenzhen Research Institute of Xiamen University, Shenzhen, Guangdong, PR China
| | - Yiping Chen
- Third Clinical College, Shanxi University of Traditional Chinese Medicine, Taiyuan, Shanxi, PR China
| | - Wenjing Cheng
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, PR China; Department of Rehabilitation Medicine, Ezhou Central Hospital, Ezhou, Hubei, PR China
| | - Peng Li
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
| | - Junliang Shen
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, PR China
| | - Tao Tong
- Third Clinical College, Shanxi University of Traditional Chinese Medicine, Taiyuan, Shanxi, PR China
| | - Longsheng Lai
- Department of Traditional Chinese Medicine, Jinshan Sub District Community Health Service Center, Xiamen, Fujian, PR China
| | - Simin Yan
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, PR China
| | - Zichun Huang
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, PR China
| | - Jiawei Li
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, PR China
| | - Shuqiong Huang
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, PR China
| | - Xianjun Meng
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, PR China; Shenzhen Research Institute of Xiamen University, Shenzhen, Guangdong, PR China.
| |
Collapse
|
29
|
Islam MR, Sohan M, Daria S, Masud AA, Ahmed MU, Roy A, Shahriar M. Evaluation of inflammatory cytokines in drug-naïve major depressive disorder: A systematic review and meta-analysis. Int J Immunopathol Pharmacol 2023; 37:3946320231198828. [PMID: 37625799 PMCID: PMC10467201 DOI: 10.1177/03946320231198828] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
Objective: Altered levels of peripheral inflammatory and proinflammatory cytokine markers affect the different clinical stages of major depressive disorder (MDD). A concrete understanding of the causal mechanism of MDD is a prerequisite in developing treatment strategies and preventive plans. Here we aimed to conduct an updated systematic review and meta-analysis of studies assessing the association of C-reactive protein (CRP), INF-γ, MCP-1, and TNF-α in the peripheral fluid of drug-naïve MDD patients and healthy controls (HCs). Methods: We extracted articles from PubMed, ProQuest, PsycINFO, Web of Science, and Scopus databases from inception until 14 February 2021, to find relevant studies. In this meta-analysis, we included a total of 23 eligible studies (1,366 MDD patients and 1,342 controls) in the final meta-analysis. The Cochran's chi-square Q-test and I2-index were applied to measure the heterogeneity and inconsistency of all combined results. We selected a random-effect model during the analysis and measured publication biases using the funnel plot. We performed Bonferroni adjustment for multiple testing. Results: We found a high level of TNF-α in MDD patients than in control subjects Standardized Mean Difference (SMD) with a random-effects model: 1.04, 95% CI: 0.69-1.39, z = 5.84, p < 0.001). The levels of CRP (SMD with a random-effects model: 0.18, 95% CI: -0.85-1.23, z = 0.35, p = 0.73), INF-ɤ (SMD with a random-effects model: -0.05, 95% CI: -2.72-2.62, z = 0.03, p = 0.97), and MCP-1 (SMD with a random-effects model: 0.70, 95% CI: -0.09-1.49, z = 1.73, p = 0.08) were not significantly varies between MDD patients and HCs. Conclusion: The present study findings suggest the upregulated level of peripheral TNF-α but not CRP, INF-γ, and MCP-1 involve in depression. The elevated inflammatory cytokines confirmed the inflammatory state of depression. Therefore, inflammatory cytokines might serve as potential risk assessment markers in MDD.
Collapse
Affiliation(s)
- Md Rabiul Islam
- Department of Pharmacy, University of Asia Pacific, Dhaka, Bangladesh
- School of Pharmacy, BRAC University, Dhaka, Bangladesh
| | - Md Sohan
- Department of Pharmacy, University of Asia Pacific, Dhaka, Bangladesh
| | - Sohel Daria
- Department of Pharmacy, University of Asia Pacific, Dhaka, Bangladesh
| | | | | | - Arpita Roy
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Greater Noida, India
| | - Mohammad Shahriar
- Department of Pharmacy, University of Asia Pacific, Dhaka, Bangladesh
| |
Collapse
|
30
|
Song JJ, Li H, Wang N, Zhou XY, Liu Y, Zhang Z, Feng Q, Chen YL, Liu D, Liang J, Ma XY, Wen XR, Fu YY. Gastrodin ameliorates the lipopolysaccharide-induced neuroinflammation in mice by downregulating miR-107-3p. Front Pharmacol 2022; 13:1044375. [PMID: 36569291 PMCID: PMC9773390 DOI: 10.3389/fphar.2022.1044375] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 11/23/2022] [Indexed: 12/13/2022] Open
Abstract
Background: Neuroinflammation plays a pivotal role in the pathogenesis of Central Nervous System (CNS) diseases. The phenolic glucoside gastrodin (GAS), has been known to treat CNS disorders by exerting anti-inflammatory activities. Our aim was to investigate the potential neuroprotective mechanisms of GAS on lipopolysaccharide (LPS)-induced mice. Methods: Male C57BL/6J mice were treated by LPS, before which GAS was adminisrated. The behavior tests such as forced swim test, tail suspension test, and elevated plus maze were performed to evaluate depressive-anxiety-like behaviors. A high-throughput sequencing (HTS) analysis was performed to screen out distinctive miRNAs which were validated using quantitative real-time PCR. Then, miRNA agomir or NC was injected stereotaxically into hippocampus of mice to explore the role of miRNA on GAS in response to LPS. Furthermore, Immunofluorescence and the hematoxylin and eosin (H&E) staining were employed to observe the cellular morphology. The protein levels of pro-inflammatory factors were evaluated by western blot. Finally, the target mRNA of miRNA was predicted using bioinformatics analysis. GO and KEGG enrichment analyses were conducted to clarify the potential function of target protein, which were visualized by bubble charts. Results: The behavioral data showed that mice in the LPS group had obvious depressive-anxiety-like behaviors, and 100 mg/kg GAS could improve these behavioral changes and alleviate the levels of pro-inflammatory cytokines in the hippocampus when mice were exposed to LPS for 6 h. Meanwhile, LPS-induced microglia and astrocyte activation in the CA1, CA2, CA3, and DG regions of the hippocampus were also reversed by GAS. Furthermore, miR-107-3p were screened out and verified for GAS in response to LPS. Importantly, miR-107-3p overexpression negatively abrogated the neuroprotective effects of GAS. Moreover, KPNA1 might be the target molecular of miR-107-3p. KPNA1 might regulate 12 neuroinflammation-related genes, which were mainly involved in cytokine-mediated signaling pathway. Conclusion: These results suggested that GAS might alleviate the LPS-induced neuroinflammation and depressive-anxiety-like behaviors in mice by downregulating miR-107-3p and upregulating the downstream target KPNA1. The indicates miR-107-3p may provide a new strategy for the treatment of CNS diseases.
Collapse
Affiliation(s)
- Jin-Jin Song
- Department of Genetics, Key Laboratory of Genetic Foundation and Clinical Application, Xuzhou Engineering Research Center of Medical Genetics and Transformation, Xuzhou Medical University, Xuzhou, Jiangsu, China,Jiangsu Key Laboratory of Brain Disease and Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou, China
| | - Hui Li
- Department of Genetics, Key Laboratory of Genetic Foundation and Clinical Application, Xuzhou Engineering Research Center of Medical Genetics and Transformation, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Nan Wang
- Jiangsu Key Laboratory of Brain Disease and Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou, China
| | - Xiao-Yan Zhou
- Department of Genetics, Key Laboratory of Genetic Foundation and Clinical Application, Xuzhou Engineering Research Center of Medical Genetics and Transformation, Xuzhou Medical University, Xuzhou, Jiangsu, China,Jiangsu Key Laboratory of Brain Disease and Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou, China
| | - Yan Liu
- Department of Genetics, Key Laboratory of Genetic Foundation and Clinical Application, Xuzhou Engineering Research Center of Medical Genetics and Transformation, Xuzhou Medical University, Xuzhou, Jiangsu, China,Jiangsu Key Laboratory of Brain Disease and Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou, China
| | - Zhen Zhang
- Department of Genetics, Key Laboratory of Genetic Foundation and Clinical Application, Xuzhou Engineering Research Center of Medical Genetics and Transformation, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Qian Feng
- Department of Genetics, Key Laboratory of Genetic Foundation and Clinical Application, Xuzhou Engineering Research Center of Medical Genetics and Transformation, Xuzhou Medical University, Xuzhou, Jiangsu, China,Clinical Laboratory, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yu-Ling Chen
- Department of Genetics, Key Laboratory of Genetic Foundation and Clinical Application, Xuzhou Engineering Research Center of Medical Genetics and Transformation, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Dan Liu
- Department of Genetics, Key Laboratory of Genetic Foundation and Clinical Application, Xuzhou Engineering Research Center of Medical Genetics and Transformation, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Jia Liang
- Department of Genetics, Key Laboratory of Genetic Foundation and Clinical Application, Xuzhou Engineering Research Center of Medical Genetics and Transformation, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiang-Yu Ma
- Department of Genetics, Key Laboratory of Genetic Foundation and Clinical Application, Xuzhou Engineering Research Center of Medical Genetics and Transformation, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiang-Ru Wen
- College of Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, China,*Correspondence: Xiang-Ru Wen, ; Yan-Yan Fu,
| | - Yan-Yan Fu
- Department of Genetics, Key Laboratory of Genetic Foundation and Clinical Application, Xuzhou Engineering Research Center of Medical Genetics and Transformation, Xuzhou Medical University, Xuzhou, Jiangsu, China,Department of Cell Biology and Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, China,*Correspondence: Xiang-Ru Wen, ; Yan-Yan Fu,
| |
Collapse
|
31
|
Tamura Y, Yamato M, Kataoka Y. Animal Models for Neuroinflammation and Potential Treatment Methods. Front Neurol 2022; 13:890217. [PMID: 35832182 PMCID: PMC9271866 DOI: 10.3389/fneur.2022.890217] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 06/03/2022] [Indexed: 11/25/2022] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a debilitating chronic disease of unknown etiology and without effective treatment options. The onset of ME/CFS is often associated with neuroinflammation following bacterial or viral infection. A positron emission tomography imaging study revealed that the degree of neuroinflammation was correlated with the severity of several symptoms in patients with ME/CFS. In animal studies, lipopolysaccharide- and polyinosinic-polycytidylic acid-induced models are thought to mimic the pathological features of ME/CFS and provoke neuroinflammation, characterized by increased levels of proinflammatory cytokines and activation of microglia. In this review, we described the anti-inflammatory effects of three compounds on neuroinflammatory responses utilizing animal models. The findings of the included studies suggest that anti-inflammatory substances may be used as effective therapies to ameliorate disease symptoms in patients with ME/CFS.
Collapse
Affiliation(s)
- Yasuhisa Tamura
- Laboratory for Cellular Function Imaging, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
- Multi-Modal Microstructure Analysis Unit, RIKEN-JEOL Collaboration Center, RIKEN, Kobe, Japan
| | - Masanori Yamato
- Laboratory for Cellular Function Imaging, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
- Multi-Modal Microstructure Analysis Unit, RIKEN-JEOL Collaboration Center, RIKEN, Kobe, Japan
| | - Yosky Kataoka
- Laboratory for Cellular Function Imaging, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
- Multi-Modal Microstructure Analysis Unit, RIKEN-JEOL Collaboration Center, RIKEN, Kobe, Japan
- *Correspondence: Yosky Kataoka
| |
Collapse
|
32
|
Clark A, Zelmanovich R, Vo Q, Martinez M, Nwafor DC, Lucke-Wold B. Inflammation and the role of infection: Complications and treatment options following neurotrauma. J Clin Neurosci 2022; 100:23-32. [PMID: 35381478 DOI: 10.1016/j.jocn.2022.03.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/14/2022] [Accepted: 03/29/2022] [Indexed: 02/08/2023]
Abstract
Traumatic brain injury can have devastating consequences for patients and extended hospital stays and recovery course. Recent data indicate that the initial insult causes profound changes to the immune system and leads to a pro-inflammatory state. This alteration in homeostasis predisposes patients to an increased risk of infection and underlying autoimmune conditions. Increased emphasis has been placed on understanding this process both in the clinical and preclinical literature. This review highlights the intrinsic inflammatory conditions that can occur within the initial hospital stay, discusses long-term immune consequences, highlights emerging treatment options, and delves into important pathways currently being investigated with preclinical models.
Collapse
Affiliation(s)
- Alec Clark
- University of Central Florida, College of Medicine, Orlando, USA
| | | | - Quan Vo
- Department of Neurosurgery, University of Florida, Gainesville, USA
| | - Melanie Martinez
- Department of Neurosurgery, University of Florida, Gainesville, USA
| | - Divine C Nwafor
- Department of Neurosurgery, West Virginia University, Morgantown, USA
| | | |
Collapse
|
33
|
Wu Z, Cai Z, Shi H, Huang X, Cai M, Yuan K, Huang P, Shi G, Yan T, Li Z. Effective biomarkers and therapeutic targets of nerve-immunity interaction in the treatment of depression: an integrated investigation of the miRNA-mRNA regulatory networks. Aging (Albany NY) 2022; 14:3569-3596. [PMID: 35468096 PMCID: PMC9085226 DOI: 10.18632/aging.204030] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 04/11/2022] [Indexed: 11/25/2022]
Abstract
Background: Major depressive disorder (MDD) is an emotional condition that interferes with sufferers’ work and daily life. Numerous studies have found that miRNAs play a significant role in the development of MDD and can be utilized as a biomarker for its diagnosis and therapy. However, there have been few studies on nerve-immunity interaction treatment for the brains of MMD patients. Methods: The work is performed on microarray data. We analyzed the differences of miRNAs (GSE58105, GSE81152, GSE152267, and GSE182194) and mRNA (GSE19738, GSE32280, GSE44593, GSE53987, and GSE98793) in MDD and healthy samples from GEO datasets. FunRich was used to predict the transcription factors and target genes of the miRNAs, and TF and GO enrichment analyses were performed. Then, by comparing the differential expression of the anticipated target genes and five mRNAs, intersecting mRNAs were discovered. The intersecting genes were submitted to GO and KEGG analyses to determine their functions. These intersecting potential genes and pathways that linked to MDD in neurological and immunological aspects have been identified for future investigation. Results: We discovered five hub genes: KCND2, MYT1L, GJA1, CHL1, and SNAP25, which were all up-regulated genes. However, in MMD, the equivalent miRNAs, hsa-miR-206 and hsa-miR-338-3p, were both down-regulated. These miRNAs can activate or inhibit the T cell receptor signal pathway, JAK-STAT and other signal pathways, govern immune-inflammatory response, neuronal remodeling, and mediate the onset and development of MMD Conclusions: The results of a thorough bioinformatics investigation of miRNAs and mRNAs in MDD showed that miR-338-3P and miR-206 might be effective biomarkers and possible therapeutic targets for the treatment of MDD via nerve-immunity interaction.
Collapse
Affiliation(s)
- Zixuan Wu
- Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Zhixiang Cai
- Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Hongshuo Shi
- Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong Province, China
| | - Xuyan Huang
- Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Minjie Cai
- Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China.,Shantou Health School, Shantou 515061, Guangdong Province, China
| | - Kai Yuan
- Yunnan University of Chinese Medicine, Kunming 650500, Yunnan Province, China
| | - Peidong Huang
- Yunnan University of Chinese Medicine, Kunming 650500, Yunnan Province, China
| | - Guoqi Shi
- Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China
| | - Tao Yan
- Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China.,Department of Cardiovascular Surgery, General Hospital of Southern Theater Command, PLA 510010, Guangdong Province, China
| | - Zhichao Li
- The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong Province, China
| |
Collapse
|
34
|
Polysaccharides from Polygonatum cyrtonema Hua Reduce Depression-Like Behavior in Mice by Inhibiting Oxidative Stress-Calpain-1-NLRP3 Signaling Axis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2566917. [PMID: 35498131 PMCID: PMC9045988 DOI: 10.1155/2022/2566917] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/16/2022] [Accepted: 03/29/2022] [Indexed: 12/15/2022]
Abstract
Polysaccharides from Polygonatum cyrtonema Hua (PSP) exert antioxidant, anti-inflammatory, and antidepressant effects. Production of reactive oxygen species (ROS) and activation of the calpain system and the NOD-like receptor protein 3 (NLRP3) inflammasome are closely related to the pathogenesis of depression. However, the relationships among those pathways and the protective effects of PSP have not been characterized. In this study, lipopolysaccharide (LPS) and chronic unpredictable mild stress- (CUMS-) induced depression models were used to evaluate the protective mechanisms of PSP against depression. ROS levels were measured in HT-22 cells using flow cytometry. Brain tissues were collected to determine the levels of oxidation-related indicators and inflammatory cytokines. The protein levels of calpain-1, calpain-2, calpastatin, phosphatase and Tensin Homolog deleted on Chromosome 10 (PTEN), suprachiasmatic nucleus circadian oscillatory protein (SCOP), nuclear factor-erythroid factor 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), NLRP3, apoptosis-associated speck-like protein (ASC), caspase-1, cleaved-caspase-1, ionized calcium binding adapter molecule 1 (Iba1), phosphorylation of extracellular signal-regulated kinase (p-ERK), nuclear factor-kappa B (NF-κB), interleukin-1β (IL-1β), and glial fibrillary acidic protein (GFAP) were measured using western blotting or immunofluorescence. In cellular experiments, we showed that PSP attenuated LPS-induced production of ROS in HT-22 cells. In animal experiments, we found that LPS increased the expression of calpain-1, NLRP3, ASC, caspase-1, cleaved-caspase-1, Iba1, p-ERK, NF-κB, and GFAP and reduced the expression of calpastatin, PTEN, SCOP, and Nrf2. Administration of PSP reversed these changes. N-Acetyl-L-cysteine (NAC) administration also inhibited oxidative stress and activation of the calpain system and the NLRP3 inflammasome. Furthermore, PSP, calpeptin, MCC950 (a selective NLRP3 inflammasome inhibitor), and NAC reduced LPS-induced proinflammatory cytokine release. We also showed that PSP prevented CUMS-induced changes in the calpain system and the Nrf2 and NLRP3 signaling pathways and reduced depression-like behavior. These results indicate that PSP exerts antidepressant effects through regulation of the oxidative stress-calpain-1-NLRP3 signaling axis.
Collapse
|
35
|
Kawada K, Ishida T, Jobu K, Morisawa S, Kawazoe T, Nishida M, Nishimura S, Tamura N, Yoshioka S, Miyamura M. Yokukansan suppresses neuroinflammation in the hippocampus of mice and decreases the duration of lipopolysaccharide- and diazepam-mediated loss of righting reflex induced by pentobarbital. J Nat Med 2022; 76:634-644. [PMID: 35257304 DOI: 10.1007/s11418-022-01612-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/22/2022] [Indexed: 10/18/2022]
Abstract
Neuroinflammation is associated with the development of hypoactive delirium, which results in poor clinical outcomes. Drugs effective against hypoactive sur have not yet been established. Yokukansan has an anti-neuroinflammatory effect, making it potentially effective against hypoactive delirium. This study aimed to examine the effect of Yokukansan on the pentobarbital-induced loss of righting reflex duration extended with lipopolysaccharide (LPS)-induced neuroinflammation and diazepam-induced gamma-aminobutyric acid receptor stimulation in a mouse model. The active ingredients in Yokukansan and its anti-neuroinflammatory effect on the hippocampus were also investigated. Furthermore, we examined the in vitro anti-inflammatory effects of Yokukansan on LPS-stimulated BV2 cells, a murine microglial cell line. Findings revealed that treatment with Yokukansan significantly decreased the duration of pentobarbital-induced loss of righting reflex by attenuating the LPS-induced increase in interleukin-6 and tumor necrosis factor-alpha levels in the hippocampus. Moreover, treatment with Yokukansan significantly decreased the number of ionized calcium-binding adapter molecule-1-positive cells in the hippocampal dentate gyrus after 24 h of LPS administration. In addition, glycyrrhizic acid, an active ingredient in Yokukansan, partially decreased the duration of pentobarbital-induced loss of righting reflex. Treatment with Yokukansan also suppressed the expression of inducible nitric oxide, interleukin-6, and tumor necrosis factor mRNA in LPS-stimulated BV2 cells. Thus, these findings suggest that Yokukansan and glycyrrhizic acid may be effective therapeutic agents for treating neuroinflammation-induced hypoactive delirium.
Collapse
Affiliation(s)
- Kei Kawada
- Graduate School of Integrated Arts and Sciences, Kochi University, 185-1 Kohasu, Oko-cho, Nankoku-shi, Kochi, Japan. .,Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan.
| | - Tomoaki Ishida
- Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
| | - Kohei Jobu
- Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
| | - Shumpei Morisawa
- Graduate School of Integrated Arts and Sciences, Kochi University, 185-1 Kohasu, Oko-cho, Nankoku-shi, Kochi, Japan.,Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
| | - Tetsushi Kawazoe
- Graduate School of Integrated Arts and Sciences, Kochi University, 185-1 Kohasu, Oko-cho, Nankoku-shi, Kochi, Japan.,Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
| | - Motoki Nishida
- Graduate School of Integrated Arts and Sciences, Kochi University, 185-1 Kohasu, Oko-cho, Nankoku-shi, Kochi, Japan.,Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
| | - Satomi Nishimura
- Graduate School of Integrated Arts and Sciences, Kochi University, 185-1 Kohasu, Oko-cho, Nankoku-shi, Kochi, Japan.,Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
| | - Naohisa Tamura
- Graduate School of Integrated Arts and Sciences, Kochi University, 185-1 Kohasu, Oko-cho, Nankoku-shi, Kochi, Japan.,Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
| | - Saburo Yoshioka
- Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
| | - Mitsuhiko Miyamura
- Graduate School of Integrated Arts and Sciences, Kochi University, 185-1 Kohasu, Oko-cho, Nankoku-shi, Kochi, Japan.,Department of Pharmacy, Kochi Medical School Hospital, 185-1 Kohasu, Oko, Nankoku, Kochi, Japan
| |
Collapse
|
36
|
Sharma R, Casillas-Espinosa PM, Dill LK, Rewell SSJ, Hudson MR, O'Brien TJ, Shultz SR, Semple BD. Pediatric traumatic brain injury and a subsequent transient immune challenge independently influenced chronic outcomes in male mice. Brain Behav Immun 2022; 100:29-47. [PMID: 34808288 DOI: 10.1016/j.bbi.2021.11.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 10/27/2021] [Accepted: 11/15/2021] [Indexed: 01/30/2023] Open
Abstract
Traumatic brain injury (TBI) is a major contributor to death and disability worldwide. Children are at particularly high risk of both sustaining a TBI and experiencing serious long-term consequences, such as cognitive deficits, mental health problems and post-traumatic epilepsy. Severe TBI patients are highly susceptible to nosocomial infections, which are mostly acquired within the first week of hospitalization post-TBI. Yet the potential chronic impact of such acute infections following pediatric TBI remains unclear. In this study, we hypothesized that a peripheral immune challenge, such as lipopolysaccharide (LPS)-mimicking a hospital-acquired infection-would worsen inflammatory, neurobehavioral, and seizure outcomes after experimental pediatric TBI. To test this, three-week old male C57Bl/6J mice received a moderate controlled cortical impact or sham surgery, followed by 1 mg/kg i.p. LPS (or 0.9% saline vehicle) at 4 days TBI. Mice were randomized to four groups; sham-saline, sham-LPS, TBI-saline or TBI-LPS (n = 15/group). Reduced general activity and increased anxiety-like behavior were observed within 24 h in LPS-treated mice, indicating a transient sickness response. LPS-treated mice also exhibited a reduction in body weights, which persisted chronically. From 2 months post-injury, mice underwent a battery of tests for sensorimotor, cognitive, and psychosocial behaviors. TBI resulted in hyperactivity and spatial memory deficits, independent of LPS; whereas LPS resulted in subtle deficits in spatial memory retention. At 5 months post-injury, video-electroencephalographic recordings were obtained to evaluate both spontaneous seizure activity as well as the evoked seizure response to pentylenetetrazol (PTZ). TBI increased susceptibility to PTZ-evoked seizures; whereas LPS appeared to increase the incidence of spontaneous seizures. Post-mortem analyses found that TBI, but not LPS, resulted in robust glial reactivity and loss of cortical volume. A TBI × LPS interaction in hippocampal volume suggested that TBI-LPS mice had a subtle increase in ipsilateral hippocampus tissue loss; however, this was not reflected in neuronal cell counts. Both TBI and LPS independently had modest effects on chronic hippocampal gene expression. Together, contrary to our hypothesis, we observed minimal synergy between TBI and LPS. Instead, pediatric TBI and a subsequent transient immune challenge independently influenced chronic outcomes. These findings have implications for future preclinical modeling as well as acute post-injury patient management.
Collapse
Affiliation(s)
- Rishabh Sharma
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Pablo M Casillas-Espinosa
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia; Department of Neurology, Alfred Health, Prahran, VIC, Australia; Department of Medicine (Royal Melbourne Hospital), The University of Melbourne, Parkville, VIC, Australia
| | - Larissa K Dill
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia; Department of Neurology, Alfred Health, Prahran, VIC, Australia
| | - Sarah S J Rewell
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia; Department of Neurology, Alfred Health, Prahran, VIC, Australia
| | - Matthew R Hudson
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Terence J O'Brien
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia; Department of Neurology, Alfred Health, Prahran, VIC, Australia; Department of Medicine (Royal Melbourne Hospital), The University of Melbourne, Parkville, VIC, Australia
| | - Sandy R Shultz
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia; Department of Neurology, Alfred Health, Prahran, VIC, Australia; Department of Medicine (Royal Melbourne Hospital), The University of Melbourne, Parkville, VIC, Australia
| | - Bridgette D Semple
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia; Department of Neurology, Alfred Health, Prahran, VIC, Australia; Department of Medicine (Royal Melbourne Hospital), The University of Melbourne, Parkville, VIC, Australia.
| |
Collapse
|
37
|
Cytokines in the Brain and Neuroinflammation: We Didn’t Starve the Fire! Pharmaceuticals (Basel) 2022; 15:ph15020140. [PMID: 35215252 PMCID: PMC8878213 DOI: 10.3390/ph15020140] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 01/23/2022] [Accepted: 01/24/2022] [Indexed: 12/19/2022] Open
Abstract
In spite of the brain-protecting tissues of the skull, meninges, and blood-brain barrier, some forms of injury to or infection of the CNS can give rise to cerebral cytokine production and action and result in drastic changes in brain function and behavior. Interestingly, peripheral infection-induced systemic inflammation can also be accompanied by increased cerebral cytokine production. Furthermore, it has been recently proposed that some forms of psychological stress may have similar CNS effects. Different conditions of cerebral cytokine production and action will be reviewed here against the background of neuroinflammation. Within this context, it is important to both deepen our understanding along already taken paths as well as to explore new ways in which neural functioning can be modified by cytokines. This, in turn, should enable us to put forward different modes of cerebral cytokine production and action in relation to distinct forms of neuroinflammation.
Collapse
|
38
|
Machado-Pereira M, Saraiva C, Bernardino L, Cristóvão AC, Ferreira R. Argonaute-2 protects the neurovascular unit from damage caused by systemic inflammation. J Neuroinflammation 2022; 19:11. [PMID: 34991639 PMCID: PMC8740421 DOI: 10.1186/s12974-021-02324-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 11/12/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The brain vasculature plays a pivotal role in the inflammatory process by modulating the interaction between blood cells and the neurovascular unit. Argonaute-2 (Ago2) has been suggested as essential for endothelial survival but its role in the brain vasculature or in the endothelial-glial crosstalk has not been addressed. Thus, our aim was to clarify the significance of Ago2 in the inflammatory responses elicited by these cell types. METHODS Mouse primary cultures of brain endothelial cells, astrocytes and microglia were used to evaluate cellular responses to the modulation of Ago2. Exposure of microglia to endothelial cell-conditioned media was used to assess the potential for in vivo studies. Adult mice were injected intraperitoneally with lipopolysaccharide (LPS) (2 mg/kg) followed by three daily intraperitoneal injections of Ago2 (0.4 nM) to assess markers of endothelial disruption, glial reactivity and neuronal function. RESULTS Herein, we demonstrated that LPS activation disturbed the integrity of adherens junctions and downregulated Ago2 in primary brain endothelial cells. Exogenous treatment recovered intracellular Ago2 above control levels and recuperated vascular endothelial-cadherin expression, while downregulating LPS-induced nitric oxide release. Primary astrocytes did not show a significant change in Ago2 levels or response to the modulation of the Ago2 system, although endogenous Ago2 was shown to be critical in the maintenance of tumor necrosis factor-α basal levels. LPS-activated primary microglia overexpressed Ago2, and Ago2 silencing contained the inflammatory response to some extent, preventing interleukin-6 and nitric oxide release. Moreover, the secretome of Ago2-modulated brain endothelial cells had a protective effect over microglia. The intraperitoneal injection of LPS impaired blood-brain barrier and neuronal function, while triggering inflammation, and the subsequent systemic administration of Ago2 reduced or normalized endothelial, glial and neuronal markers of LPS damage. This outcome likely resulted from the direct action of Ago2 over the brain endothelium, which reestablished glial and neuronal function. CONCLUSIONS Ago2 could be regarded as a putative therapeutic agent, or target, in the recuperation of the neurovascular unit in inflammatory conditions.
Collapse
Affiliation(s)
- Marta Machado-Pereira
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Rua Marquês d’Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Cláudia Saraiva
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Rua Marquês d’Ávila e Bolama, 6201-001 Covilhã, Portugal
- Present Address: Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7 Avenue des Hauts-Fourneaux, 4362 Esch-sur-Alzette, Luxembourg
| | - Liliana Bernardino
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Rua Marquês d’Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Ana C. Cristóvão
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Rua Marquês d’Ávila e Bolama, 6201-001 Covilhã, Portugal
- NeuroSoV, UBImedical, EM506, University of Beira Interior, Covilhã, Portugal
| | - Raquel Ferreira
- Health Sciences Research Centre (CICS-UBI), University of Beira Interior, Rua Marquês d’Ávila e Bolama, 6201-001 Covilhã, Portugal
- CEDOC, NOVA Medical School|Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, 130, 1169-056 Lisboa, Portugal
| |
Collapse
|
39
|
Craig CF, Filippone RT, Stavely R, Bornstein JC, Apostolopoulos V, Nurgali K. Neuroinflammation as an etiological trigger for depression comorbid with inflammatory bowel disease. J Neuroinflammation 2022; 19:4. [PMID: 34983592 PMCID: PMC8729103 DOI: 10.1186/s12974-021-02354-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 12/14/2021] [Indexed: 02/06/2023] Open
Abstract
Patients with inflammatory bowel disease (IBD) suffer from depression at higher rates than the general population. An etiological trigger of depressive symptoms is theorised to be inflammation within the central nervous system. It is believed that heightened intestinal inflammation and dysfunction of the enteric nervous system (ENS) contribute to impaired intestinal permeability, which facilitates the translocation of intestinal enterotoxins into the blood circulation. Consequently, these may compromise the immunological and physiological functioning of distant non-intestinal tissues such as the brain. In vivo models of colitis provide evidence of increased blood–brain barrier permeability and enhanced central nervous system (CNS) immune activity triggered by intestinal enterotoxins and blood-borne inflammatory mediators. Understanding the immunological, physiological, and structural changes associated with IBD and neuroinflammation may aid in the development of more tailored and suitable pharmaceutical treatment for IBD-associated depression.
Collapse
Affiliation(s)
- Colin F Craig
- Institute for Heath and Sport, Victoria University, Western Centre for Health, Research and Education, Sunshine Hospital, Melbourne, VIC, Australia
| | - Rhiannon T Filippone
- Institute for Heath and Sport, Victoria University, Western Centre for Health, Research and Education, Sunshine Hospital, Melbourne, VIC, Australia
| | - Rhian Stavely
- Institute for Heath and Sport, Victoria University, Western Centre for Health, Research and Education, Sunshine Hospital, Melbourne, VIC, Australia.,Department of Pediatric Surgery, Pediatric Surgery Research Laboratories, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Joel C Bornstein
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Australia
| | - Vasso Apostolopoulos
- Institute for Heath and Sport, Victoria University, Western Centre for Health, Research and Education, Sunshine Hospital, Melbourne, VIC, Australia.,Immunology Program, Australian Institute of Musculoskeletal Science (AIMSS), Melbourne, VIC, Australia
| | - Kulmira Nurgali
- Institute for Heath and Sport, Victoria University, Western Centre for Health, Research and Education, Sunshine Hospital, Melbourne, VIC, Australia. .,Department of Medicine Western Health, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, VIC, Australia. .,Regenerative Medicine and Stem Cells Program, Australian Institute of Musculoskeletal Science (AIMSS), Melbourne, VIC, Australia. .,Institute for Health and Sport, Victoria University, Level 4 Research Labs, Western Centre for Health Research and Education, Sunshine Hospital, 176 Furlong Road, St Albans, VIC, 3021, Australia.
| |
Collapse
|
40
|
Ito N, Maruko A, Oshima K, Yoshida M, Honma K, Sugiyama C, Nagai T, Kobayashi Y, Odaguchi H, Okada N. Kampo formulas alleviate aging-related emotional disturbances and neuroinflammation in male senescence-accelerated mouse prone 8 mice. Aging (Albany NY) 2022; 14:109-142. [PMID: 34979499 PMCID: PMC8791223 DOI: 10.18632/aging.203811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/20/2021] [Indexed: 11/25/2022]
Abstract
Aging-induced neuroinflammation, also known as neuroinflammaging, plays a pivotal role in emotional disturbances, including depression and anxiety, in older individuals, thereby leading to cognitive dysfunction. Although numerous studies have focused on therapeutic strategies for cognitive impairment in older individuals, little research has been performed on treating its preceding emotional disturbances. Here, we examined whether Kampo formulas (kososan [KS], nobiletin-rich kososan [NKS], and hachimijiogan [HJG]) can ameliorate aging-induced emotional disturbances and neuroinflammation in mice. The depression-like behaviors observed in SAMP8 mice, relative to normally aging SAMR1 mice, were significantly prevented by treatment with Kampo formulas for 13 weeks. Western blot analysis revealed that hippocampal neuroinflammation was significantly abrogated by Kampo formulas. KS and NKS also significantly attenuated the hippocampal neuroinflammatory priming induced by lipopolysaccharide (LPS, 0.33 mg/kg, i.p.) challenge in SAMP8 mice. Hippocampal IL-1β, IL-6, and MCP-1 levels were significantly decreased in NKS-treated SAMP8 mice. KS and NKS showed significantly reduced tau accumulation in the brains of SAMP8 mice. RNA-sequencing revealed that each Kampo formula led to unique dynamics of hippocampal gene expression and appeared to abrogate hippocampal inflammatory responses. HJG significantly blocked the LPS-induced increase in serum IL-6 and MCP-1. These results suggest that Kampo formulas would be useful for treating aging-induced depression, in part by regulating neuroinflammatory pathways. This finding may pave the way for the development of therapeutic strategies for aging-related emotional disturbances, which may contribute to the prevention of cognitive dysfunction in older individuals.
Collapse
Affiliation(s)
- Naoki Ito
- Oriental Medicine Research Center, Kitasato University, Tokyo 108-8642, Japan
| | - Akiko Maruko
- Laboratory of Genomics for Health and Longevity, School of Pharmacy, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
| | - Kenshiro Oshima
- Laboratory of Genomics for Health and Longevity, School of Pharmacy, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
| | - Masaaki Yoshida
- Research Laboratory, Kotaro Pharmaceutical Co., Ltd., Hakusan, Ishikawa 920-0201, Japan
| | - Kengo Honma
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo 108-8642, Japan
| | - Chika Sugiyama
- Graduate School of Medical Sciences, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
| | - Takayuki Nagai
- Oriental Medicine Research Center, Kitasato University, Tokyo 108-8642, Japan.,Graduate School of Infection Control Sciences, Kitasato University, Tokyo 108-8642, Japan.,Laboratory of Biochemical Pharmacology for Phytomedicines, Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo 108-8642, Japan
| | - Yoshinori Kobayashi
- Oriental Medicine Research Center, Kitasato University, Tokyo 108-8642, Japan.,Graduate School of Medical Sciences, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
| | - Hiroshi Odaguchi
- Oriental Medicine Research Center, Kitasato University, Tokyo 108-8642, Japan.,Department of Pharmacognosy, School of Pharmacy, Kitasato University, Minato-ku, Tokyo 108-8642, Japan
| | - Norihiro Okada
- Laboratory of Genomics for Health and Longevity, School of Pharmacy, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
| |
Collapse
|
41
|
Nicolas S, McGovern AJ, Hueston CM, O'Mahony SM, Cryan JF, O'Leary OF, Nolan YM. Prior maternal separation stress alters the dendritic complexity of new hippocampal neurons and neuroinflammation in response to an inflammatory stressor in juvenile female rats. Brain Behav Immun 2022; 99:327-338. [PMID: 34732365 DOI: 10.1016/j.bbi.2021.10.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 10/19/2021] [Accepted: 10/23/2021] [Indexed: 12/11/2022] Open
Abstract
Stress during critical periods of neurodevelopment is associated with an increased risk of developing stress-related psychiatric disorders, which are more common in women than men. Hippocampal neurogenesis (the birth of new neurons) is vulnerable to maternal separation (MS) and inflammatory stressors, and emerging evidence suggests that hippocampal neurogenesis is more sensitive to stress in the ventral hippocampus (vHi) than in the dorsal hippocampus (dHi). Although research into the effects of MS stress on hippocampal neurogenesis is well documented in male rodents, the effect in females remains underexplored. Similarly, reports on the impact of inflammatory stressors on hippocampal neurogenesis in females are limited, especially when female bias in the prevalence of stress-related psychiatric disorders begins to emerge. Thus, in this study we investigated the effects of MS followed by an inflammatory stressor (lipopolysaccharide, LPS) in early adolescence on peripheral and hippocampal inflammatory responses and hippocampal neurogenesis in juvenile female rats. We show that MS enhanced an LPS-induced increase in the pro-inflammatory cytokine IL-1β in the vHi but not in the dHi. However, microglial activation was similar following LPS alone or MS alone in both hippocampal regions, while MS prior to LPS reduced microglial activation in both dHi and vHi. The production of new neurons was unaffected by MS and LPS. MS and LPS independently reduced the dendritic complexity of new neurons, and MS exacerbated LPS-induced reductions in the complexity of distal dendrites of new neurons in the vHi but not dHi. These data highlight that MS differentially primes the physiological response to LPS in the juvenile female rat hippocampus.
Collapse
Affiliation(s)
- Sarah Nicolas
- Department of Anatomy and Neuroscience, University College Cork, Ireland
| | - Andrew J McGovern
- Department of Anatomy and Neuroscience, University College Cork, Ireland
| | - Cara M Hueston
- Department of Anatomy and Neuroscience, University College Cork, Ireland
| | - Siobhain M O'Mahony
- Department of Anatomy and Neuroscience, University College Cork, Ireland; APC Microbiome Ireland, University College Cork, Ireland
| | - John F Cryan
- Department of Anatomy and Neuroscience, University College Cork, Ireland; APC Microbiome Ireland, University College Cork, Ireland
| | - Olivia F O'Leary
- Department of Anatomy and Neuroscience, University College Cork, Ireland; APC Microbiome Ireland, University College Cork, Ireland
| | - Yvonne M Nolan
- Department of Anatomy and Neuroscience, University College Cork, Ireland; APC Microbiome Ireland, University College Cork, Ireland.
| |
Collapse
|
42
|
Chellappan R, Guha A, Si Y, Kwan T, Nabors LB, Filippova N, Yang X, Myneni AS, Meesala S, Harms AS, King PH. SRI-42127, a novel small molecule inhibitor of the RNA regulator HuR, potently attenuates glial activation in a model of lipopolysaccharide-induced neuroinflammation. Glia 2022; 70:155-172. [PMID: 34533864 PMCID: PMC8595840 DOI: 10.1002/glia.24094] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 01/03/2023]
Abstract
Glial activation with the production of pro-inflammatory mediators is a major driver of disease progression in neurological processes ranging from acute traumatic injury to chronic neurodegenerative diseases such as amyotrophic lateral sclerosis and Alzheimer's disease. Posttranscriptional regulation is a major gateway for glial activation as many mRNAs encoding pro-inflammatory mediators contain adenine- and uridine-rich elements (ARE) in the 3' untranslated region which govern their expression. We have previously shown that HuR, an RNA regulator that binds to AREs, plays a major positive role in regulating inflammatory cytokine production in glia. HuR is predominantly nuclear in localization but translocates to the cytoplasm to exert a positive regulatory effect on RNA stability and translational efficiency. Homodimerization of HuR is necessary for translocation and we have developed a small molecule inhibitor, SRI-42127, that blocks this process. Here we show that SRI-42127 suppressed HuR translocation in LPS-activated glia in vitro and in vivo and significantly attenuated the production of pro-inflammatory mediators including IL1β, IL-6, TNF-α, iNOS, CXCL1, and CCL2. Cytokines typically associated with anti-inflammatory effects including TGF-β1, IL-10, YM1, and Arg1 were either unaffected or minimally affected. SRI-42127 suppressed microglial activation in vivo and attenuated the recruitment/chemotaxis of neutrophils and monocytes. RNA kinetic studies and luciferase studies indicated that SRI-42127 has inhibitory effects both on mRNA stability and gene promoter activation. In summary, our findings underscore HuR's critical role in promoting glial activation and the potential for SRI-42127 and other HuR inhibitors for treating neurological diseases driven by this activation.
Collapse
Affiliation(s)
- Rajeshwari Chellappan
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294,,Birmingham Veterans Affairs Medical Center, Birmingham, AL 35294
| | - Abhishek Guha
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Ying Si
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294,,Birmingham Veterans Affairs Medical Center, Birmingham, AL 35294
| | - Thaddaeus Kwan
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - L. Burt Nabors
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Natalia Filippova
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Xiuhua Yang
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Anish S. Myneni
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Shriya Meesala
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Ashley S Harms
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Peter H. King
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294,,Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35294,,Birmingham Veterans Affairs Medical Center, Birmingham, AL 35294,Correspondence to: Dr. P.H. King; UAB Dept. of Neurology, Civitan 545C, 1530 3 Avenue South, Birmingham, AL 35294-0017, USA. Tel. (205) 975-8116; Fax (205) 996-7255;
| |
Collapse
|
43
|
Del Pilar C, Lebrón-Galán R, Pérez-Martín E, Pérez-Revuelta L, Ávila-Zarza CA, Alonso JR, Clemente D, Weruaga E, Díaz D. The Selective Loss of Purkinje Cells Induces Specific Peripheral Immune Alterations. Front Cell Neurosci 2021; 15:773696. [PMID: 34916910 PMCID: PMC8671039 DOI: 10.3389/fncel.2021.773696] [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: 09/10/2021] [Accepted: 10/27/2021] [Indexed: 11/13/2022] Open
Abstract
The progression of neurodegenerative diseases is reciprocally associated with impairments in peripheral immune responses. We investigated different contexts of selective neurodegeneration to identify specific alterations of peripheral immune cells and, at the same time, discover potential biomarkers associated to this pathological condition. Consequently, a model of human cerebellar degeneration and ataxia -the Purkinje Cell Degeneration (PCD) mouse- has been employed, as it allows the study of different processes of selective neuronal death in the same animal, i.e., Purkinje cells in the cerebellum and mitral cells in the olfactory bulb. Infiltrated leukocytes were studied in both brain areas and compared with those from other standardized neuroinflammatory models obtained by administering either gamma radiation or lipopolysaccharide. Moreover, both myeloid and lymphoid splenic populations were analyzed by flow cytometry, focusing on markers of functional maturity and antigen presentation. The severity and type of neural damage and inflammation affected immune cell infiltration. Leukocytes were more numerous in the cerebellum of PCD mice, being located predominantly within those cerebellar layers mostly affected by neurodegeneration, in a completely different manner than the typical models of induced neuroinflammation. Furthermore, the milder degeneration of the olfactory bulb did not foster leukocyte attraction. Concerning the splenic analysis, in PCD mice we found: (1) a decreased percentage of several myeloid cell subsets, and (2) a reduced mean fluorescence intensity in those myeloid markers related to both antigen presentation and functional maturity. In conclusion, the selective degeneration of Purkinje cells triggers a specific effect on peripheral immune cells, fostering both attraction and functional changes. This fact endorses the employment of peripheral immune cell populations as concrete biomarkers for monitoring different neuronal death processes.
Collapse
Affiliation(s)
- Carlos Del Pilar
- INCyL, Institute for Neuroscience of Castile and Leon, Universidad de Salamanca, Salamanca, Spain.,IBSAL, Institute of Biomedical Research of Salamanca, Salamanca, Spain
| | - Rafael Lebrón-Galán
- Grupo de Neuroinmuno-Reparación, Hospital Nacional de Parapléjicos, Toledo, Spain.,SESCAM (Servicio de Salud de Castile-La-Mancha), Castilla-La Mancha, Spain
| | - Ester Pérez-Martín
- INCyL, Institute for Neuroscience of Castile and Leon, Universidad de Salamanca, Salamanca, Spain.,IBSAL, Institute of Biomedical Research of Salamanca, Salamanca, Spain
| | - Laura Pérez-Revuelta
- INCyL, Institute for Neuroscience of Castile and Leon, Universidad de Salamanca, Salamanca, Spain.,IBSAL, Institute of Biomedical Research of Salamanca, Salamanca, Spain
| | - Carmelo Antonio Ávila-Zarza
- IBSAL, Institute of Biomedical Research of Salamanca, Salamanca, Spain.,Applied Statistics Group, Department of Statistics, Universidad de Salamanca, Salamanca, Spain
| | - José Ramón Alonso
- INCyL, Institute for Neuroscience of Castile and Leon, Universidad de Salamanca, Salamanca, Spain.,IBSAL, Institute of Biomedical Research of Salamanca, Salamanca, Spain.,Instituto de Alta Investigación, Universidad de Tarapacá, Arica, Chile
| | - Diego Clemente
- Grupo de Neuroinmuno-Reparación, Hospital Nacional de Parapléjicos, Toledo, Spain.,SESCAM (Servicio de Salud de Castile-La-Mancha), Castilla-La Mancha, Spain
| | - Eduardo Weruaga
- INCyL, Institute for Neuroscience of Castile and Leon, Universidad de Salamanca, Salamanca, Spain.,IBSAL, Institute of Biomedical Research of Salamanca, Salamanca, Spain
| | - David Díaz
- INCyL, Institute for Neuroscience of Castile and Leon, Universidad de Salamanca, Salamanca, Spain.,IBSAL, Institute of Biomedical Research of Salamanca, Salamanca, Spain
| |
Collapse
|
44
|
Li W, Xu Y, Liu Z, Shi M, Zhang Y, Deng Y, Zhong X, Chen L, He J, Zeng J, Luo M, Cao W, Wan W. TRPV4 inhibitor HC067047 produces antidepressant-like effect in LPS-induced depression mouse model. Neuropharmacology 2021; 201:108834. [PMID: 34637786 DOI: 10.1016/j.neuropharm.2021.108834] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 10/05/2021] [Accepted: 10/07/2021] [Indexed: 01/07/2023]
Abstract
Inflammation is a crucial component that contributes to the pathogenesis of major depressive disorder. It has been revealed that the nonselective cation channel transient receptor potential vanilloid 4 (TRPV4) profoundly affects a variety of physiological processes, including inflammation. However, its roles and mechanisms in LPS-induced depression are still unclear. Here, for the first time, we found that there was a significant increase in TRPV4 in the hippocampus in a depression mouse model induced by LPS. TRPV4 inhibitor HC067047 or knockdown the hippocampal TRPV4 with TRPV4 shRNA could effectively rescue the aberrant behaviors. Furthermore, TRPV4 inhibitor HC067047 reduced the activation of astrocyte and microglia, decreased expression of CaMKII-NLRP3 inflammasome and increased the expression of neurogenesis marker DCX in the hippocampus. In addition, enhanced neuroinflammation in the serum was also reversed by TRPV4 inhibitor HC067047. Thus, we consider that TRPV4 has an important role in contributing to the depression-like behavior following LPS-induced systemic inflammation.
Collapse
Affiliation(s)
- Wei Li
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Yang Xu
- Institute of Neuroscience, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Zhenghai Liu
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Mengmeng Shi
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Yuan Zhang
- Department of Pathology, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Yingcheng Deng
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Xiaolin Zhong
- Institute of Clinical Medicine, The First Affiliated Hospital of University of South China, 421001, Hengyang, Hunan, China
| | - Ling Chen
- Institute of Clinical Medicine, The First Affiliated Hospital of University of South China, 421001, Hengyang, Hunan, China
| | - Jie He
- Department of Pathology, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Jiayu Zeng
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China
| | - Mingying Luo
- Department of Anatomy & Histology & Embryology, Kunming Medical University, 650500, Kunming, Yunnan, China
| | - Wenyu Cao
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China.
| | - Wei Wan
- Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, China; Key Laboratory of Brain Science Research & Transformation in Tropical Environment of Hainan Province, Hainan Medical University, 571199, Haikou, China.
| |
Collapse
|
45
|
Camacho-Arroyo I, Flores-Ramos M, Mancilla-Herrera I, Cruz FMC, Hernández-Ruiz J, Diaz GP, Labonne BF, Del Pilar Meza-Rodríguez M, Gelman PL. Chemokine profile in women with moderate to severe anxiety and depression during pregnancy. BMC Pregnancy Childbirth 2021; 21:807. [PMID: 34863117 PMCID: PMC8642921 DOI: 10.1186/s12884-021-04225-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 10/20/2021] [Indexed: 12/12/2022] Open
Abstract
Background Cytokine levels have been extensively described in pregnant subjects under normal and pathological conditions, including mood-related disorders. Concerning chemokines, very few studies have reported their association with psychiatric disorders during pregnancy. Therefore, we explored the chemokine profile in women exhibiting anxiety and depression during late pregnancy in the present study. Methods One hundred twenty-six pregnant women in the 3rd trimester of pregnancy, displaying moderate to severe anxiety (ANX) alone and women exhibiting moderate to severe anxiety with comorbid depression (ANX + DEP), and 40 control pregnant women without affective disorders (CTRL) were evaluated through the Hamilton Anxiety Rating Scale (HARS) and the Hamilton Depression Rating Scale (HDRS). Serum chemokine levels of MCP-1 (CCL2), RANTES (CCL5), IP-10 (CXCL10), Eotaxin (CCL11), TARC (CCL17), MIP-1α (CCL3), MIP-1β (CCL4), MIG (CXCL9), MIP-3α (CCL20), ENA-78 (CXCL5), GROα (CXCL1), I-TAC (CXCL11) and IL-8 (CXCL8)] were measured by immunoassay. Clinical, biochemical, and sociodemographic parameters were correlated with HARS and HDRS score values. Results Serum levels of most chemokines were significantly higher in the ANX and in the ANX + DEP groups, when compared to the CTRL group. Positive correlations were observed between MIP-1α/CCL3, MIP-1β/CCL4, MCP-1/CCL2, MIP-3α/CCL20, RANTES/CCL5, Eotaxin/CCL11, and I-TAC/CXCL11 with high scores for anxiety (HARS) (p < 0.05) and for depression (HDRS) (p < 0.004). After controlling clinical measures for age + gwk + BMI, chemokines such as IL-8/CXCL8, MCP-1/CCL2 and MIP-1β/CCL4 were found associated with high scores for anxiety (p < 0.05) in the ANX group. TARC/CCL17 and Eotaxin/CCL11 showed significant associations with high scores for depression (p < 0.04) whereas, MCP-1/CCL2 and MIP-1α/CCL3 were significantly associated with high scores for anxiety (p < 0.05) in the ANX + DEP group. Using a multivariate linear model, high serum levels of MIP-1β/CCL4 and Eotaxin/CCL11 remained associated with depression (p < 0.01), while, IL-8/CXCL8, MIP-1β/CCL4, MCP-1/CCL2, and MIP-1α/CCL3 were associated with anxiety (p < 0.05) in the symptomatic groups. Conclusions Our data show that serum levels of distinct chemokines are increased in women exhibiting high levels of affective symptoms during late pregnancy. Our results suggest that increased levels of anxiety, depressive symptoms, and mood-related disorders may promote changes in specific functional chemokines associated with a chronic inflammatory process. If not controlled, it may lead to adverse obstetric and negative neonate outcomes, child development and neuropsychiatric alterations in the postnatal life. Highlights Chemokine levels increase in affective disorders during pregnancy.
Collapse
Affiliation(s)
- Ignacio Camacho-Arroyo
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México, (CD MX) 04510, Mexico City, Mexico
| | - Mónica Flores-Ramos
- Instituto Nacional de Psiquiatría, CD MX 14370, Mexico City, Mexico.,Consejo Nacional de Ciencia y Tecnología/CONACyT, CD MX 03940, Mexico City, Mexico
| | - Ismael Mancilla-Herrera
- Departamento de Neurociencias, Instituto Nacional de Perinatología, Av. Montes Urales # 800. Col. Lomas de Virreyes, CD MX 11000, Mexico City, Mexico
| | - Fausto Moisés Coronel Cruz
- Clinical Pharmacology Unit, Hospital General de México Dr. Eduardo Liceaga, CD MX 06720, Mexico City, Mexico
| | - Joselin Hernández-Ruiz
- Clinical Pharmacology Unit, Hospital General de México Dr. Eduardo Liceaga, CD MX 06720, Mexico City, Mexico.,División of Nephology and Hypertension, University of Utah, Salt Lake City, UT, 84112, USA
| | - Gabriela Pellón Diaz
- Departamento de Neurociencias, Instituto Nacional de Perinatología, Av. Montes Urales # 800. Col. Lomas de Virreyes, CD MX 11000, Mexico City, Mexico
| | - Blanca Farfán Labonne
- Departamento de Neurociencias, Instituto Nacional de Perinatología, Av. Montes Urales # 800. Col. Lomas de Virreyes, CD MX 11000, Mexico City, Mexico
| | - María Del Pilar Meza-Rodríguez
- Departamento de Neurociencias, Instituto Nacional de Perinatología, Av. Montes Urales # 800. Col. Lomas de Virreyes, CD MX 11000, Mexico City, Mexico
| | - Philippe Leff Gelman
- Departamento de Neurociencias, Instituto Nacional de Perinatología, Av. Montes Urales # 800. Col. Lomas de Virreyes, CD MX 11000, Mexico City, Mexico.
| |
Collapse
|
46
|
Palomino-Antolin A, Narros-Fernández P, Farré-Alins V, Sevilla-Montero J, Decouty-Pérez C, Lopez-Rodriguez AB, Fernández N, Monge L, Casas AI, Calzada MJ, Egea J. Time-dependent dual effect of NLRP3 inflammasome in brain ischemia. Br J Pharmacol 2021; 179:1395-1410. [PMID: 34773639 DOI: 10.1111/bph.15732] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 09/21/2021] [Accepted: 10/05/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Post-ischemic inflammation contributes to worsening of ischemic brain injury and in this process, the inflammasomes play a key role. Inflammasomes are cytosolic multiprotein complexes which upon assembly activate the maturation and secretion of the inflammatory cytokines IL-1β and IL-18. However, participation of the NLRP3 inflammasome in ischemic stroke remains controversial. Our aims were to determine the role of NLRP3 in ischemia and to explore the mechanism involved in the potential protective effect of the neurovascular unit. METHODS WT and NLRP3 knock-out mice were subjected to ischemia by middle cerebral artery occlusion (60 minutes) with or without treatment with MCC950 at different time points post-stroke. Brain injury was measured histologically with 2,3,5-triphenyltetrazolium chloride (TTC) staining. RESULTS We identified a time-dependent dual effect of NLRP3. While neither the pre-treatment with MCC950 nor the genetic approach (NLRP3 KO) proved to be neuroprotective, post-reperfusion treatment with MCC950 significantly reduced the infarct volume in a dose-dependent manner. Importantly, MCC950 improved the neuro-motor function and reduced the expression of different pro-inflammatory cytokines (IL-1β, TNF-α), NLRP3 inflammasome components (NLRP3, pro-caspase-1), protease expression (MMP9) and endothelial adhesion molecules (ICAM, VCAM). We observed a marked protection of the blood-brain barrier (BBB), which was also reflected in the recovery of the tight junctions proteins (ZO-1, Claudin-5). Additionally, MCC950 produced a reduction of the CCL2 chemokine in blood serum and in brain tissue, which lead to a reduction in the immune cell infiltration. CONCLUSIONS These findings suggest that post-reperfusion NLRP3 inhibition may be an effective acute therapy for protecting the blood-brain barrier in cerebral ischemia with potential clinical translation.
Collapse
Affiliation(s)
- Alejandra Palomino-Antolin
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, Madrid, Spain; Instituto Teófilo Hernando, Departamento de Farmacología y Terapéutica, Facultad de Medicina, UAM, Madrid, Spain
| | - Paloma Narros-Fernández
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, Madrid, Spain; Instituto Teófilo Hernando, Departamento de Farmacología y Terapéutica, Facultad de Medicina, UAM, Madrid, Spain
| | - Víctor Farré-Alins
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, Madrid, Spain; Instituto Teófilo Hernando, Departamento de Farmacología y Terapéutica, Facultad de Medicina, UAM, Madrid, Spain
| | - Javier Sevilla-Montero
- Instituto de Investigacion Sanitaria Princesa (IIS-IP), Department of Medicine, School of Medicine, Universidad Autonoma of Madrid, Spain
| | - Celine Decouty-Pérez
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, Madrid, Spain; Instituto Teófilo Hernando, Departamento de Farmacología y Terapéutica, Facultad de Medicina, UAM, Madrid, Spain
| | - Ana Belen Lopez-Rodriguez
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, Madrid, Spain; Instituto Teófilo Hernando, Departamento de Farmacología y Terapéutica, Facultad de Medicina, UAM, Madrid, Spain
| | - Nuria Fernández
- Fluorescence Imaging Group, Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - Luis Monge
- Fluorescence Imaging Group, Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - Ana I Casas
- Department of Pharmacology and Personalised Medicine, MHeNs, Maastricht University, Maastricht, The Netherlands.,Department of Neurology, University Clinics Essen, Essen, Germany
| | - María José Calzada
- Instituto de Investigacion Sanitaria Princesa (IIS-IP), Department of Medicine, School of Medicine, Universidad Autonoma of Madrid, Spain
| | - Javier Egea
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria-Hospital Universitario de la Princesa, Madrid, Spain; Instituto Teófilo Hernando, Departamento de Farmacología y Terapéutica, Facultad de Medicina, UAM, Madrid, Spain
| |
Collapse
|
47
|
Talley S, Valiauga R, Anderson L, Cannon AR, Choudhry MA, Campbell EM. DSS-induced inflammation in the colon drives a proinflammatory signature in the brain that is ameliorated by prophylactic treatment with the S100A9 inhibitor paquinimod. J Neuroinflammation 2021; 18:263. [PMID: 34758843 PMCID: PMC8578918 DOI: 10.1186/s12974-021-02317-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 11/03/2021] [Indexed: 12/23/2022] Open
Abstract
Background Inflammatory bowel disease (IBD) is established to drive pathological sequelae in organ systems outside the intestine, including the central nervous system (CNS). Many patients exhibit cognitive deficits, particularly during disease flare. The connection between colonic inflammation and neuroinflammation remains unclear and characterization of the neuroinflammatory phenotype in the brain during colitis is ill-defined. Methods Transgenic mice expressing a bioluminescent reporter of active caspase-1 were treated with 2% dextran sodium sulfate (DSS) for 7 days to induce acute colitis, and colonic, systemic and neuroinflammation were assessed. In some experiments, mice were prophylactically treated with paquinimod (ABR-215757) to inhibit S100A9 inflammatory signaling. As a positive control for peripheral-induced neuroinflammation, mice were injected with lipopolysaccharide (LPS). Colonic, systemic and brain inflammatory cytokines and chemokines were measured by cytokine bead array (CBA) and Proteome profiler mouse cytokine array. Bioluminescence was quantified in the brain and caspase activation was confirmed by immunoblot. Immune cell infiltration into the CNS was measured by flow cytometry, while light sheet microscopy was used to monitor changes in resident microglia localization in intact brains during DSS or LPS-induced neuroinflammation. RNA sequencing was performed to identify transcriptomic changes occurring in the CNS of DSS-treated mice. Expression of inflammatory biomarkers were quantified in the brain and serum by qRT-PCR, ELISA and WB. Results DSS-treated mice exhibited clinical hallmarks of colitis, including weight loss, colonic shortening and inflammation in the colon. We also detected a significant increase in inflammatory cytokines in the serum and brain, as well as caspase and microglia activation in the brain of mice with ongoing colitis. RNA sequencing of brains isolated from DSS-treated mice revealed differential expression of genes involved in the regulation of inflammatory responses. This inflammatory phenotype was similar to the signature detected in LPS-treated mice, albeit less robust and transient, as inflammatory gene expression returned to baseline following cessation of DSS. Pharmacological inhibition of S100A9, one of the transcripts identified by RNA sequencing, attenuated colitis severity and systemic and neuroinflammation. Conclusions Our findings suggest that local inflammation in the colon drives systemic inflammation and neuroinflammation, and this can be ameliorated by inhibition of the S100 alarmin, S100A9. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-021-02317-6.
Collapse
Affiliation(s)
- Sarah Talley
- Department of Microbiology and Immunology, Loyola University Chicago, Maywood, IL, USA
| | - Rasa Valiauga
- Stritch School of Medicine, Loyola University Chicago, Maywood, IL, USA
| | - Lillian Anderson
- Alcohol Research Program, Burn and Shock Trauma Research Institute, Stritch School of Medicine, Loyola University Chicago Health Science Division, Maywood, IL, USA
| | - Abigail R Cannon
- Alcohol Research Program, Burn and Shock Trauma Research Institute, Stritch School of Medicine, Loyola University Chicago Health Science Division, Maywood, IL, USA
| | - Mashkoor A Choudhry
- Alcohol Research Program, Burn and Shock Trauma Research Institute, Stritch School of Medicine, Loyola University Chicago Health Science Division, Maywood, IL, USA
| | - Edward M Campbell
- Department of Microbiology and Immunology, Loyola University Chicago, Maywood, IL, USA. .,Stritch School of Medicine, Loyola University Chicago, Maywood, IL, USA.
| |
Collapse
|
48
|
Abuiessa SA, El-Gowilly SM, El-Gowelli HM, Helmy MM, El-Mas MM. Short-lived sensitization of cardiovascular outcomes of postpartum endotoxemia in preeclamptic rats: Role of medullary solitary tract neuroinflammation. Eur J Pharmacol 2021; 910:174494. [PMID: 34508754 DOI: 10.1016/j.ejphar.2021.174494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 08/08/2021] [Accepted: 09/06/2021] [Indexed: 11/30/2022]
Abstract
Preeclampsia (PE) is a pregnancy-related disorder with serious maternal complications. Considering the increased importance of postpartum infection in maternal morbidity and mortality, we investigated whether preeclamptic maternal programming alters cardiovascular consequences of endotoxemia in rats and the role of cardiac and brainstem neuroinflammation in this interaction. Preeclampsia was induced by oral administration of L-NAME (50 mg/kg/day) for 7 days starting from day 14 of conception. Changes in blood pressure, heart rate, and cardiac autonomic function caused by lipopolysaccharide (LPS, 5 mg/kg i.v.) were assessed in mothers at 3 weeks (weaning time) and 9 weeks postnatally. Compared with respective non-PE counterparts, LPS treatment of weaning PE mothers caused significantly greater (i) falls in blood pressure, (ii) rises in heart rate and left ventricular contractility (dP/dtmax), (iii) reductions in time and frequency domain indices of heart rate variability and shifts in cardiac sympathovagal balance (low-frequency/high-frequency ratio, LF/HF) towards parasympathetic dominance, and (iv) attenuation of reflex bradycardic responses measured by the vasoactive method. The intensified LPS effects in weaning PE rats subsided after 9 weeks of delivery. Immunohistochemical studies showed increased protein expression of nuclear factor kappa B (NF-κB) in brainstem neuronal pools of the nucleus of the solitary tract (NTS), but not rostral ventrolateral medulla (RVLM), in endotoxic PE weaning rats compared with non-PE rats. Cardiac NF-κB expression was increased by LPS but this was similarly noted in PE and non-PE rats. Together, preeclamptic maternal programming elicits short-term exacerbation of endotoxic cardiovascular and autonomic derangements due possibly to exaggerated NTS neuroinflammatory insult.
Collapse
Affiliation(s)
- Salwa A Abuiessa
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Sahar M El-Gowilly
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Hanan M El-Gowelli
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Mai M Helmy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Mahmoud M El-Mas
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt; Department of Pharmacology and Toxicology, Faculty of Medicine, Kuwait University, Kuwait.
| |
Collapse
|
49
|
Song Z, Bian Z, Zhang Z, Wang X, Zhu A, Zhu G. Astrocytic Kir4.1 regulates NMDAR/calpain signaling axis in lipopolysaccharide-induced depression-like behaviors in mice. Toxicol Appl Pharmacol 2021; 429:115711. [PMID: 34474083 DOI: 10.1016/j.taap.2021.115711] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/25/2021] [Accepted: 08/28/2021] [Indexed: 12/16/2022]
Abstract
The activation of Nod-like receptor protein 3 (NLRP3) inflammasome propagates pro-inflammatory signaling cascades linking to depression-like behaviors. However, the signaling pathway contributing to NLRP3 inflammasome activation and depression-like behaviors is still not clear. In this study, we evidenced that lipopolysaccharide (LPS) injection (i.p.) triggered depression-like behaviors, promoted the expression of Kir4.1, p-GluN2B and calpain-1, and activated NLRP3 inflammasome. The blockage of N-methyl-d-aspartate receptors (NMDAR) by memantine reduced LPS-induced depression-like behaviors, NLRP3 inflammasome and astrocyte activation, and calpain-1 expression. Additionally, memantine also inhibited LPS-induced reduction of postsynaptic density protein 95 (PSD-95) and Arc expression. Specific reduction of Kir4.1 in astrocytes attenuated LPS-induced expression of NLRP3 and calpain-1, and phosphorylation of GluN2B. Interestingly, LPS-induced expression of calpain-1 largely co-localized with GFAP, indicating the specific function of calpain-1 in astrocytes. Together, these data indicate that astrocytic Kir4.1 could regulate NMDAR/calpain-1 signaling axis, contributing to depression-like behaviors, likely through regulating NLRP3 inflammasome activation.
Collapse
Affiliation(s)
- Zhujin Song
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China; School of Basic Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Zhijuan Bian
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Zhengrong Zhang
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Xuncui Wang
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Aisong Zhu
- School of Basic Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Guoqi Zhu
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China.
| |
Collapse
|
50
|
De Meij J, Alfanek Z, Morel L, Decoeur F, Leyrolle Q, Picard K, Carrier M, Aubert A, Séré A, Lucas C, Laforest G, Helbling JC, Tremblay ME, Cota D, Moisan MP, Marsicano G, Layé S, Nadjar A. Microglial Cannabinoid Type 1 Receptor Regulates Brain Inflammation in a Sex-Specific Manner. Cannabis Cannabinoid Res 2021; 6:488-507. [PMID: 34591647 DOI: 10.1089/can.2020.0170] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Background: Neuroinflammation is a key feature shared by most, if not all, neuropathologies. It involves complex biological processes that act as a protective mechanism to fight against the injurious stimuli, but it can lead to tissue damage if self-perpetuating. In this context, microglia, the main cellular actor of neuroinflammation in the brain, are seen as a double-edged sword. By phagocyting neuronal debris, these cells can not only provide tissue repair but can also contribute to neuronal damage by releasing harmful substances, including inflammatory cytokines. The mechanisms guiding these apparent opposing actions are poorly known. The endocannabinoid system modulates the release of inflammatory factors such as cytokines and could represent a functional link between microglia and neuroinflammatory processes. According to transcriptomic databases and in vitro studies, microglia, the main source of cytokines in pathological conditions, express the cannabinoid type 1 receptor (CB1R). Methods: We thus developed a conditional mouse model of CB1R deletion specifically in microglia, which was subjected to an immune challenge (peripheral lipopolysaccharide injection). Results: Our results reveal that microglial CB1R differentially controls sickness behavior in males and females. Conclusion: These findings add to the comprehension of neuroinflammatory processes and might be of great interest for future studies aimed at developing therapeutic strategies for brain disorders with higher prevalence in men.
Collapse
Affiliation(s)
- Julia De Meij
- NutriNeuro, INRAE, Bordeaux INP, University of Bordeaux, Bordeaux, France
| | - Zain Alfanek
- NutriNeuro, INRAE, Bordeaux INP, University of Bordeaux, Bordeaux, France
| | - Lydie Morel
- NutriNeuro, INRAE, Bordeaux INP, University of Bordeaux, Bordeaux, France
| | - Fanny Decoeur
- NutriNeuro, INRAE, Bordeaux INP, University of Bordeaux, Bordeaux, France
| | - Quentin Leyrolle
- NutriNeuro, INRAE, Bordeaux INP, University of Bordeaux, Bordeaux, France
| | - Katherine Picard
- Axe Neurosciences, Centre de Recherche du CHU de Québec, Université Laval, Québec City, Canada.,Division of Medical Sciences, University of Victoria, Victoria, Canada.,Department of Molecular Medicine, Université Laval, Québec City, Canada
| | - Micael Carrier
- Axe Neurosciences, Centre de Recherche du CHU de Québec, Université Laval, Québec City, Canada.,Division of Medical Sciences, University of Victoria, Victoria, Canada
| | - Agnes Aubert
- NutriNeuro, INRAE, Bordeaux INP, University of Bordeaux, Bordeaux, France
| | - Alexandra Séré
- NutriNeuro, INRAE, Bordeaux INP, University of Bordeaux, Bordeaux, France
| | - Céline Lucas
- NutriNeuro, INRAE, Bordeaux INP, University of Bordeaux, Bordeaux, France
| | - Gerald Laforest
- NutriNeuro, INRAE, Bordeaux INP, University of Bordeaux, Bordeaux, France
| | | | - Marie-Eve Tremblay
- Axe Neurosciences, Centre de Recherche du CHU de Québec, Université Laval, Québec City, Canada.,Division of Medical Sciences, University of Victoria, Victoria, Canada.,Department of Molecular Medicine, Université Laval, Québec City, Canada.,Neurology and Neurosurgery Department, McGill University, Montreal, Canada.,Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, Canada
| | - Daniela Cota
- INSERM, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, Bordeaux, France
| | | | - Giovanni Marsicano
- INSERM, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, Bordeaux, France
| | - Sophie Layé
- NutriNeuro, INRAE, Bordeaux INP, University of Bordeaux, Bordeaux, France
| | - Agnès Nadjar
- NutriNeuro, INRAE, Bordeaux INP, University of Bordeaux, Bordeaux, France.,INSERM, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, Bordeaux, France
| |
Collapse
|