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Lin K, Zhang Y, Shen Y, Xu Y, Huang M, Liu X. Hydrogen Sulfide can Scavenge Free Radicals to Improve Spinal Cord Injury by Inhibiting the p38MAPK/mTOR/NF-κB Signaling Pathway. Neuromolecular Med 2024; 26:26. [PMID: 38907170 DOI: 10.1007/s12017-024-08794-1] [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: 04/21/2024] [Accepted: 05/31/2024] [Indexed: 06/23/2024]
Abstract
Spinal cord injury (SCI) causes irreversible cell loss and neurological dysfunctions. Presently, there is no an effective clinical treatment for SCI. It can be the only intervention measure by relieving the symptoms of patients such as pain and fever. Free radical-induced damage is one of the validated mechanisms in the complex secondary injury following primary SCI. Hydrogen sulfide (H2S) as an antioxidant can effectively scavenge free radicals, protect neurons, and improve SCI by inhibiting the p38MAPK/mTOR/NF-κB signaling pathway. In this report, we analyze the pathological mechanism of SCI, the role of free radical-mediated the p38MAPK/mTOR/NF-κB signaling pathway in SCI, and the role of H2S in scavenging free radicals and improving SCI.
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Affiliation(s)
- Kexin Lin
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Yong Zhang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Yanyang Shen
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Yiqin Xu
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Min Huang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China
| | - Xuehong Liu
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Shaoxing, 312000, Zhejiang Province, China.
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2
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Song Z, Ho CT, Zhang X. Gut Microbiota Mediate the Neuroprotective Effect of Oolong Tea Polyphenols in Cognitive Impairment Induced by Circadian Rhythm Disorder. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:12184-12197. [PMID: 38745351 DOI: 10.1021/acs.jafc.4c01922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Oolong tea polyphenols (OTP) have attracted wide attention due to their ability to reduce inflammatory response, regulate gut microbiota, and improve cognitive function. However, exactly how the gut microbiota modulates nervous system activity is still an open question. We previously expounded that supplementing with OTP alleviated neuroinflammation in circadian rhythm disorder (CRD) mice. Here, we showed that OTP can relieve microglia activation by reducing harmful microbial metabolites lipopolysaccharide (LPS) that alleviate CRD-induced cognitive decline. Mechanistically, OTP suppressed the inflammation response by regulating the gut microbiota composition, including upregulating the relative abundance of Muribaculaceae and Clostridia_UCG-014 and downregulating Desulfovibrio, promoting the production of short-chain fatty acids (SCFAs). Moreover, the use of OTP alleviated intestinal barrier damage and decreased the LPS transport to the serum. These results further inhibited the activation of microglia, thus alleviating cognitive impairment by inhibiting neuroinflammation, neuron damage, and neurotoxicity metabolite glutamate elevation. Meanwhile, OTP upregulated the expression of synaptic plasticity-related protein postsynaptic density protein 95 (PSD-95) and synaptophysin (SYN) by elevating the brain-derived neurotrophic factor (BDNF) level. Taken together, our findings suggest that the OTP has the potential to prevent CRD-induced cognition decline by modulating gut microbiota and microbial metabolites.
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Affiliation(s)
- Zheyi Song
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, New Jersey 08901, United States
| | - Xin Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, P. R. China
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3
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Kumar M, Bhatt B, Gusain C, Mahajan N, Bishnoi M. Sex-specific effects of ketogenic diet on anxiety-like behavior and neuroimmune response in C57Bl/6J mice. J Nutr Biochem 2024; 127:109591. [PMID: 38311044 DOI: 10.1016/j.jnutbio.2024.109591] [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: 11/15/2023] [Revised: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 02/06/2024]
Abstract
The ketogenic diet (KD) has been shown to reduce anxiety and enhance cognitive functions in neurological diseases. However, the sex-specific effects of KD on anxiety-like behavior in healthy individuals and the underlying molecular mechanisms contributing to these effects, including neuroinflammation, are unelucidated. This study investigated the sex-specific effects of KD on anxiety-like behavior and the neuroimmune response in the prefrontal cortex (PFC) and hippocampus of healthy C57BL/6J male and female mice. Animals were fed either a control diet (CD- 17% fat, 65% carb, 18% protein) or a KD (80% fat, 5% carb, 15% protein) for 4 weeks. KD increased the levels of circulating β-hydroxybutyrate (BHB) both in males and females. However, PFC BHB levels were found to be elevated only in KD males. Moreover, KD did not affect the behavior of females but improved motor abilities and reduced anxiety levels in males. KD suppressed the mRNA expression of the pan microglial markers (Cd68, P2ry12) and induced morphological changes in the male PFC microglia. A sex-specific decrease in IL1β and an increase in IL-10 levels was found in the PFC of KD males. A similar trend was observed in the hippocampus of males where KD reduced the mRNA expression of P2ry12, Il1β, and cFos. Additionally, BHB increased the production of IL-10 whereas it decreased the production of IL1β from human microglia in in-vitro conditions. In summary, these results demonstrate that the anxiolytic and motor function enhancement abilities of KD are male-specific. Reduced pro-inflammatory and improved anti-inflammatory factors in the male PFC and hippocampus may underlie these effects.
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Affiliation(s)
- Mohit Kumar
- Centre for Excellence in Functional Foods, Food & Nutrition Biotechnology Division, National Agri-Food Biotechnology Institute, S.A.S Nagar, Sector 81 (Knowledge City), Punjab, India; Adjunct faculty, Regional Centre for Biotechnology, Faridabad, Haryana, India.
| | - Babita Bhatt
- Centre for Excellence in Functional Foods, Food & Nutrition Biotechnology Division, National Agri-Food Biotechnology Institute, S.A.S Nagar, Sector 81 (Knowledge City), Punjab, India
| | - Chitralekha Gusain
- Centre for Excellence in Functional Foods, Food & Nutrition Biotechnology Division, National Agri-Food Biotechnology Institute, S.A.S Nagar, Sector 81 (Knowledge City), Punjab, India
| | - Nayan Mahajan
- Centre for Excellence in Functional Foods, Food & Nutrition Biotechnology Division, National Agri-Food Biotechnology Institute, S.A.S Nagar, Sector 81 (Knowledge City), Punjab, India
| | - Mahendra Bishnoi
- Centre for Excellence in Functional Foods, Food & Nutrition Biotechnology Division, National Agri-Food Biotechnology Institute, S.A.S Nagar, Sector 81 (Knowledge City), Punjab, India
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4
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Oliveira MK, Batista TH, Rojas VCT, Vitor-Vieira F, Reis L, Giusti FCV, Giusti-Paiva A. Neuromodulator hydrogen sulfide attenuates sickness behavior induced by lipopolysaccharide. J Neuroimmunol 2024; 389:578324. [PMID: 38422691 DOI: 10.1016/j.jneuroim.2024.578324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
Sickness behavior reflects a state of altered physiology and central nervous system function that occurs during systemic infection or inflammation, serving as an adaptive response to illness. This study aims to elucidate the role of hydrogen sulfide (H2S) in regulating sickness behavior and neuroinflammatory responses in a rat model of systemic inflammation. Adult male Wistar rats were treated with lipopolysaccharide (LPS) to induce sickness behavior. Intracerebroventricular (i.c.v.) pretreatments included aminooxyacetic acid (AOAA), an inhibitor of H2S synthesis, and sodium sulfide (NaHS), an H2S donor. Behavioral assays were conducted, along with the assessment of astrocyte activation, as indicated by GFAP expression in the hypothalamus. Pretreatment with NaHS mitigated LPS-induced behavioral changes, including hypophagia, social and exploratory deficits, without affecting peripheral cytokine levels, indicating a central modulatory effect. AOAA, conversely, accentuated certain behavioral responses, suggesting a complex role of endogenous H2S in sickness behavior. These findings were reinforced by a lack of effect on plasma interleukin levels but significant reduction in GFAP expression. Our findings support the central role of H2S in modulating neuroinflammation and sickness behavior, highlighting the therapeutic potential of targeting H2S signaling in neuroinflammatory conditions.
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Affiliation(s)
- Merelym K Oliveira
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Instituto de Ciências Biomédicas, Universidade Federal de Alfenas (Unifal-MG), Alfenas, MG, Brazil
| | - Tatiane H Batista
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Instituto de Ciências Biomédicas, Universidade Federal de Alfenas (Unifal-MG), Alfenas, MG, Brazil
| | - Viviana Carolina T Rojas
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Instituto de Ciências Biomédicas, Universidade Federal de Alfenas (Unifal-MG), Alfenas, MG, Brazil
| | - Fernando Vitor-Vieira
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Instituto de Ciências Biomédicas, Universidade Federal de Alfenas (Unifal-MG), Alfenas, MG, Brazil
| | - Letícia Reis
- Programa de Pós-Graduação em Biociências, Instituto de Ciências Biomédicas, Universidade Federal de Alfenas (Unifal-MG), Alfenas, MG, Brazil
| | - Fabiana Cardoso Vilela Giusti
- Programa de Pós-Graduação em Biociências, Instituto de Ciências Biomédicas, Universidade Federal de Alfenas (Unifal-MG), Alfenas, MG, Brazil; Centro de Inovação e Ensaios Pré-Clínicos (CIEnP), Florianópolis, SC, Brazil
| | - Alexandre Giusti-Paiva
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil.
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Albashari AA, He Y, Luo Y, Duan X, Ali J, Li M, Fu D, Xiang Y, Peng Y, Li S, Luo L, Zan X, Kumeria T, Ye Q. Local Spinal Cord Injury Treatment Using a Dental Pulp Stem Cell Encapsulated H 2S Releasing Multifunctional Injectable Hydrogel. Adv Healthc Mater 2024; 13:e2302286. [PMID: 38056013 DOI: 10.1002/adhm.202302286] [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: 07/19/2023] [Revised: 12/04/2023] [Indexed: 12/08/2023]
Abstract
Spinal cord injury (SCI) commonly induces nerve damage and nerve cell degeneration. In this work, a novel dental pulp stem cells (DPSCs) encapsulated thermoresponsive injectable hydrogel with sustained hydrogen sulfide (H2S) delivery is demonstrated for SCI repair. For controlled and sustained H2S gas therapy, a clinically tested H2S donor (JK) loaded octysilane functionalized mesoporous silica nanoparticles (OMSNs) are incorporated into the thermosensitive hydrogel made from Pluronic F127 (PF-127). The JK-loaded functionalized MSNs (OMSF@JK) promote preferential M2-like polarization of macrophages and neuronal differentiation of DPSCs in vitro. OMSF@JK incorporated PF-127 injectable hydrogel (PF-OMSF@JK) has a soft consistency similar to that of the human spinal cord and thus, shows a high cytocompatibility with DPSCs. The cross-sectional micromorphology of the hydrogel shows a continuous porous structure. Last, the PF-OMSF@JK composite hydrogel considerably improves the in vivo SCI regeneration in Sprague-Dawley rats through a reduction in inflammation and neuronal differentiation of the incorporated stem cells as confirmed using western blotting and immunohistochemistry. The highly encouraging in vivo results prove that this novel design on hydrogel is a promising therapy for SCI regeneration with the potential for clinical translation.
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Affiliation(s)
- Abdullkhaleg Ali Albashari
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Yan He
- Laboratory for Regenerative Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, Hubei, 430064, China
- Oral Maxillofacial Department, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Yu Luo
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China
| | - Xingxiang Duan
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China
| | - Jihea Ali
- College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Mingchang Li
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China
| | - Dehao Fu
- Department of Orthopaedics, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, China
| | - Yangfan Xiang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Youjian Peng
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China
| | - Song Li
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Lihua Luo
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Xingjie Zan
- Wenzhou Institute, University of China Academy of Science, Wenzhou, Zhejiang, 325024, China
| | - Tushar Kumeria
- School of Materials Science and Engineering, University of New South Wales, Sydney, New South Wales, 2052, Australia
- Australian Center for NanoMedicine, University of New South Wales, Sydney, New South Wales, 2052, Australia
- School of Pharmacy, University of Queensland, Brisbane, Queensland, 4102, Australia
| | - Qingsong Ye
- Center of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
- Oral Maxillofacial Department, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
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6
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Shentu Y, Chen M, Wang H, Du X, Zhang W, Xie G, Zhou S, Ding L, Zhu Y, Zhu M, Zhang N, Du C, Ma J, Chen R, Yang J, Fan X, Gong Y, Zhang H, Fan J. Hydrogen sulfide ameliorates lipopolysaccharide-induced anxiety-like behavior by inhibiting checkpoint kinase 1 activation in the hippocampus of mice. Exp Neurol 2024; 371:114586. [PMID: 37898396 DOI: 10.1016/j.expneurol.2023.114586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/19/2023] [Accepted: 10/25/2023] [Indexed: 10/30/2023]
Abstract
Hydrogen sulfide (H2S), an endogenous gasotransmitter, exhibits the anxiolytic roles through its anti-inflammatory effects, although its underlying mechanisms remain largely elusive. Emerging evidence has documented that cell cycle checkpoint kinase 1 (Chk1)-regulated DNA damage plays an important role in the neurodegenerative diseases; however, there are few relevant reports on the research of Chk1 in neuropsychiatric diseases. Here, we aimed to investigate the regulatory role of H2S on Chk1 in lipopolysaccharide (LPS)-induced anxiety-like behavior focusing on inflammasome activation in the hippocampus. Cystathionine γ-lyase (CSE, a H2S-producing enzyme) knockout (CSE-/-) mice displayed anxiety-like behavior and activation of inflammasome-mediated inflammatory responses, manifesting by the increase levels of interleukin-1β (IL-1β), IL-6, and ionized calcium-binding adaptor molecule-1 (Iba-1, microglia marker) expression in the hippocampus. Importantly, expression of p-Chk1 and γ-H2AX (DNA damage marker) levels were also increased in the hippocampus of CSE-/- mice. LPS treatment decreased the expression of CSE and CBS while increased p-Chk1 and γ-H2AX levels and inflammasome-activated neuroinflammation in the hippocampus of mice. Moreover, p-Chk1 and γ-H2AX protein levels and cellular immunoactivity were significantly increased while CSE and CBS were markedly decreased in cultured BV2 cells followed by LPS treatment. Treatment of mice with GYY4137, a donor of H2S, inhibited LPS-induced increased in p-Chk1 and γ-H2AX levels, mitigated inflammasome activation and inflammatory responses as well as amelioration of anxiety-like behavior. Notably, SB-218078, a selective Chk1 inhibitor treatment attenuated the effect of LPS on inflammasome activation and inflammatory responses and the induction of anxiety-like behavior. Finally, STAT3 knockdown with AAV-STAT3 shRNA alleviated LPS-induced anxiety-like behavior and inhibited inflammasome activation in the hippocampus, and blockade of NLRP3 with MCC950 attenuated neuroinflammation induction and ameliorated LPS-induced anxiety-like behavior. Overall, this study indicates that downregulation of Chk1 activity by H2S activation may be considered as a valid strategy for preventing the progression of LPS-induced anxiety-like behavior.
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Affiliation(s)
- Yangping Shentu
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Mengfan Chen
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Hui Wang
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Xiaotong Du
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Institute of Cixi Biomedical Research, Wenzhou Medical University, Cixi, Zhejiang 315302, China
| | - Wenjing Zhang
- Renji College, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Guizhen Xie
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Shaoyan Zhou
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Lu Ding
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yun Zhu
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Min Zhu
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Nan Zhang
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Congkuo Du
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Jianshe Ma
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Ran Chen
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Jinge Yang
- Department of Medical Technology, Jiangxi Medical College, Shangrao, Jiangxi 334709, China
| | - Xiaofang Fan
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yongsheng Gong
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
| | - Hongyu Zhang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Institute of Cixi Biomedical Research, Wenzhou Medical University, Cixi, Zhejiang 315302, China.
| | - Junming Fan
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Institute of Cixi Biomedical Research, Wenzhou Medical University, Cixi, Zhejiang 315302, China.
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Liu Y, Zhang J, Li Y, Zhao Y, Kuermanbayi S, Zhuang J, Zhang H, Xu F, Li F. Matrix stiffness-dependent microglia activation in response to inflammatory cues: in situ investigation by scanning electrochemical microscopy. Chem Sci 2023; 15:171-184. [PMID: 38131065 PMCID: PMC10732011 DOI: 10.1039/d3sc03504b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 11/26/2023] [Indexed: 12/23/2023] Open
Abstract
Microglia play a crucial role in maintaining the homeostasis of the central nervous system (CNS) by sensing and responding to mechanical and inflammatory cues in their microenvironment. However, the interplay between mechanical and inflammatory cues in regulating microglia activation remains elusive. In this work, we constructed in vitro mechanical-inflammatory coupled microenvironment models of microglia by culturing BV2 cells (a murine microglial cell line) on polyacrylamide gels with tunable stiffness and incorporating a lipopolysaccharide (LPS) to mimic the physiological and pathological microenvironment of microglia in the hippocampus. Through characterization of activation-related proteins, cytokines, and reactive oxygen species (ROS) levels, we observed that the LPS treatment induced microglia on a stiff matrix to exhibit overexpression of NOX2, higher levels of ROS and inflammatory factors compared to those on a soft matrix. Additionally, using scanning electrochemical microscopy (SECM), we performed in situ characterization and discovered that microglia on a stiff matrix promoted extracellular ROS production, leading to a disruption in their redox balance and increased susceptibility to LPS-induced ROS production. Furthermore, the respiratory activity and migration behavior of microglia were closely associated with their activation process, with the stiff matrix-LPS-induced microglia demonstrating the most pronounced changes in respiratory activity and migration ability. This work represents the first in situ and dynamic monitoring of microglia activation state alterations under a mechanical-inflammatory coupled microenvironment using SECM. Our findings shed light on matrix stiffness-dependent activation of microglia in response to an inflammatory microenvironment, providing valuable insights into the mechanisms underlying neuroinflammatory processes in the CNS.
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Affiliation(s)
- Yulin Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Junjie Zhang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Yabei Li
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University Xi'an 710049 P. R. China
- School of Chemistry, Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Yuxiang Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Shuake Kuermanbayi
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Jian Zhuang
- Key Laboratory of Education Ministry for Modern Design Rotor-Bearing System, School of Mechanical Engineering, Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Hua Zhang
- Department of Neurosurgery, The First Affiliated Hospital, Xi'an Jiaotong University Xi'an 710061 P. R. China
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Fei Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University Xi'an 710049 P. R. China
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8
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Liu L, Zhang R, Chen C, Xia C, Yao G, He X, Xia B. The effect of Banxia-houpo decoction on CUMS-induced depression by promoting M2 microglia polarization via TrkA/Akt signalling. J Cell Mol Med 2023; 27:3339-3353. [PMID: 37581474 PMCID: PMC10623515 DOI: 10.1111/jcmm.17906] [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: 07/08/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/16/2023] Open
Abstract
It has been reported that Banxia-houpo decoction (BXHPD) serves as the anti-depressant treatment for a mild and severe depressive disease with limited side effects. The present study was performed to evaluate the protective effect of BXHPD on chronic unpredicted mild stress (CUMS)-induced depression and explore its effect on TrkA/Akt-mediated microglia polarization. The CUMS procedure was carried out, and the mice were intragastrically treated with BXHPD once daily. The selective TrkA inhibitor GW441756 was applied to further investigate the role of TrkA in BXHPD-mediated microglia polarization. The behaviour test including open field test (OFT), sucrose preference test (SPT), novelty-suppressed feeding test (NSFT), tail suspension test (TST) and forced swim test (FST) was performed. The concentrations of pro-inflammatory cytokines IL-6, TNF-α, IL-1β, IL-12 and anti-inflammatory cytokines IL-4, IL-10 were determined using Enzyme-linked immunosorbent assay. The population of Iba1+ cells and the length of microglia processes were observed under the fluorescence microscope. The mRNA expressions of Arg1, Ym1 and Fizzl1 were measured by PCR. The protein expressions of TrkA, p-Tyr490-TrkA, p-Ser473-Akt, p-Ser473-Akt1, p-Ser474-Akt2, p-CREB and Jmjd3 were detected by western blot. Our results showed that BXHPD attenuated CUMS-induced depressive-like behaviour, promoted anti-inflammatory cytokines, inhibited pro-inflammatory cytokines, suppressed microglia activation, promoted M2 phenotype-specific indices and upregulated the expressions of TrkA, p-Tyr490-TrkA, p-Ser473-Akt, p-Ser473-Akt1, p-Ser474-Akt2, p-CREB and Jmjd3. The above beneficial effect of BXHPD can be blocked by TrkA inhibitor GW441756. This work demonstrated that BXHPD exerted an anti-depressant effect by promoting M2 phenotype microglia polarization via TrkA/Akt pathway.
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Affiliation(s)
- Li Liu
- School of PharmacyGuangdong Medical UniversityDongguanChina
| | - Rong Zhang
- Neurology DepartmentKunshan Hospital Affiliated to Nanjing University of Chinese MedicineKunshanChina
| | - Chang Chen
- School of Elderly Care Services and ManagementNanjing University of Chinese MedicineNanjingChina
| | - Changbo Xia
- School of Chinese Medicine, School of Integrated Chinese and Western MedicineNanjing University of Chinese MedicineNanjingChina
| | - Guangda Yao
- School of Chinese Medicine, School of Integrated Chinese and Western MedicineNanjing University of Chinese MedicineNanjingChina
| | - Xiaogang He
- Neurology DepartmentKunshan Hospital Affiliated to Nanjing University of Chinese MedicineKunshanChina
| | - Baomei Xia
- School of PharmacyGuangdong Medical UniversityDongguanChina
- Faculty of Rehabilitation ScienceNanjing Normal University of Special EducationNanjingChina
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Kumar M. Hydrogen sulfide: From a toxic gas to a potential therapy for COVID-19 and inflammatory disorders. Nitric Oxide 2023; 140-141:8-15. [PMID: 37648016 DOI: 10.1016/j.niox.2023.08.002] [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: 05/15/2023] [Revised: 07/06/2023] [Accepted: 08/26/2023] [Indexed: 09/01/2023]
Abstract
COVID-19 has been shown to induce inflammatory disorders and CNS manifestations. Swift and efficient treatment strategies are urgently warranted for the management of COVID, inflammatory and neurological disorders. Hydrogen sulfide (H2S) has been associated with several clinical disorders due to its potential to influence a broad range of biological signalling pathways. According to recent clinical studies, COVID patients with lower physiological H2S had higher fatality rates. These findings clearly demonstrate an inverse correlation between H2S levels and the severity of COVID-19. H2S has been proposed as a protective molecule because of its antioxidant, anti-inflammatory, and antiviral properties. Various H2S-releasing prodrugs, hybrids and natural compounds have been tested for their therapeutic efficacy in viral infections and inflammatory disorders. In this review, I am highlighting the rationale for using H2S-based interventions for the management of COVID-19 and post-infection inflammatory disorders including neuroinflammation. I am also proposing therepurposing of existing H2S-releasing prodrugs, developing new NO-H2S-hybrids, targeting H2S metabolic pathways, and using H2S-producing dietary supplements as viable defensive strategies against SARS-CoV-2 infection and COVID-19 pathologies.
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Affiliation(s)
- Mohit Kumar
- Centre for Excellence in Functional Foods, Food and Nutrition Biotechnology Division, National Agri-Food Biotechnology Institute, S.A.S Nagar, Punjab, 140306, India.
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10
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Chen J, Chen Z, Yu D, Yan Y, Hao X, Zhang M, Zhu T. Neuroprotective Effect of Hydrogen Sulfide Subchronic Treatment Against TBI-Induced Ferroptosis and Cognitive Deficits Mediated Through Wnt Signaling Pathway. Cell Mol Neurobiol 2023; 43:4117-4140. [PMID: 37624470 PMCID: PMC10661805 DOI: 10.1007/s10571-023-01399-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 08/07/2023] [Indexed: 08/26/2023]
Abstract
Emerging evidence shows that targeting ferroptosis may be a potential therapeutic strategy for treating traumatic brain injury (TBI). Hydrogen sulfide (H2S) has been proven to play a neuroprotective role in TBI, but little is known about the effects of H2S on TBI-induced ferroptosis. In addition, it is reported that the Wnt signaling pathway can also actively regulate ferroptosis. However, whether H2S inhibits ferroptosis via the Wnt signaling pathway after TBI remains unclear. In this study, we first found that in addition to alleviating neuronal damage and cognitive impairments, H2S remarkably attenuated abnormal iron accumulation, decreased lipid peroxidation, and improved the expression of glutathione peroxidase 4, demonstrating the potent anti-ferroptosis action of H2S after TBI. Moreover, Wnt3a or liproxstatin-1 treatment obtained similar results, suggesting that activation of the Wnt signaling pathway can render the cells less susceptible to ferroptosis post-TBI. More importantly, XAV939, an inhibitor of the Wnt signaling pathway, almost inversed ferroptosis inactivation and reduction of neuronal loss caused by H2S treatment, substantiating the involvement of the Wnt signaling pathway in anti-ferroptosis effects of H2S. In conclusion, the Wnt signaling pathway might be the critical mechanism in realizing the anti-ferroptosis effects of H2S against TBI. TBI induces ferroptosis-related changes characterized by iron overload, impaired antioxidant system, and lipid peroxidation at the chronic phase after TBI. However, NaHS subchronic treatment reduces the susceptibility to TBI-induced ferroptosis, at least partly by activating the Wnt signaling pathway.
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Affiliation(s)
- Jie Chen
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, No.76 Yanta West Road, Xi'an, 710061, Shaanxi, China
- Clinical Experimental Center, Xi'an Engineering Technology Research Center for Cardiovascular Active Pep-Tides, The Affiliated Xi'an International Medical Center Hospital, Northwest University, No.777 Xitai Road, Xi'an, 710100, Shaanxi, China
| | - Zhennan Chen
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, No.76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Dongyu Yu
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, No.76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Yufei Yan
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, No.76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Xiuli Hao
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, No.76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Mingxia Zhang
- Clinical Experimental Center, Xi'an Engineering Technology Research Center for Cardiovascular Active Pep-Tides, The Affiliated Xi'an International Medical Center Hospital, Northwest University, No.777 Xitai Road, Xi'an, 710100, Shaanxi, China
| | - Tong Zhu
- Clinical Experimental Center, Xi'an Engineering Technology Research Center for Cardiovascular Active Pep-Tides, The Affiliated Xi'an International Medical Center Hospital, Northwest University, No.777 Xitai Road, Xi'an, 710100, Shaanxi, China.
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11
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Orján EM, Kormányos ES, Fűr GM, Dombi Á, Bálint ER, Balla Z, Balog BA, Dágó Á, Totonji A, Bátai ZI, Jurányi EP, Ditrói T, Al-Omari A, Pozsgai G, Kormos V, Nagy P, Pintér E, Rakonczay Z, Kiss L. The anti-inflammatory effect of dimethyl trisulfide in experimental acute pancreatitis. Sci Rep 2023; 13:16813. [PMID: 37798377 PMCID: PMC10556037 DOI: 10.1038/s41598-023-43692-9] [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: 09/12/2022] [Accepted: 09/27/2023] [Indexed: 10/07/2023] Open
Abstract
Various organosulfur compounds, such as dimethyl trisulfide (DMTS), display anti-inflammatory properties. We aimed to examine the effects of DMTS on acute pancreatitis (AP) and its mechanism of action in both in vivo and in vitro studies. AP was induced in FVB/n mice or Wistar rats by caerulein, ethanol-palmitoleic acid, or L-ornithine-HCl. DMTS treatments were administered subcutaneously. AP severity was assessed by pancreatic histological scoring, pancreatic water content, and myeloperoxidase activity measurements. The behaviour of animals was followed. Pancreatic heat shock protein 72 (HSP72) expression, sulfide, and protein persulfidation were measured. In vitro acinar viability, intracellular Ca2+ concentration, and reactive oxygen species production were determined. DMTS dose-dependently decreased the severity of AP. It declined the pancreatic infiltration of leukocytes and cellular damage in mice. DMTS upregulated the HSP72 expression during AP and elevated serum sulfide and low molecular weight persulfide levels. DMTS exhibited cytoprotection against hydrogen peroxide and AP-inducing agents. It has antioxidant properties and modulates physiological but not pathophysiological Ca2+ signalling. Generally, DMTS ameliorated AP severity and protected pancreatic acinar cells. Our findings indicate that DMTS is a sulfur donor with anti-inflammatory and antioxidant effects, and organosulfur compounds require further investigation into this potentially lethal disease.
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Affiliation(s)
- Erik Márk Orján
- Department of Pathophysiology, University of Szeged, Semmelweis U. 1, 6725, Szeged, Hungary
| | - Eszter Sára Kormányos
- Department of Pathophysiology, University of Szeged, Semmelweis U. 1, 6725, Szeged, Hungary
| | | | - Ágnes Dombi
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Emese Réka Bálint
- Department of Pathophysiology, University of Szeged, Semmelweis U. 1, 6725, Szeged, Hungary
| | - Zsolt Balla
- Department of Pathophysiology, University of Szeged, Semmelweis U. 1, 6725, Szeged, Hungary
| | - Beáta Adél Balog
- Department of Pathophysiology, University of Szeged, Semmelweis U. 1, 6725, Szeged, Hungary
| | - Ágnes Dágó
- Department of Pathophysiology, University of Szeged, Semmelweis U. 1, 6725, Szeged, Hungary
| | - Ahmad Totonji
- Department of Pathophysiology, University of Szeged, Semmelweis U. 1, 6725, Szeged, Hungary
| | - Zoárd István Bátai
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Eszter Petra Jurányi
- Department of Molecular Immunology and Toxicology and the National Tumor Biology Laboratory, National Institute of Oncology, Budapest, Hungary
- Doctoral School of Molecular Medicine, Semmelweis University, Budapest, Hungary
| | - Tamás Ditrói
- Department of Molecular Immunology and Toxicology and the National Tumor Biology Laboratory, National Institute of Oncology, Budapest, Hungary
| | - Ammar Al-Omari
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Gábor Pozsgai
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Viktória Kormos
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Péter Nagy
- Department of Molecular Immunology and Toxicology and the National Tumor Biology Laboratory, National Institute of Oncology, Budapest, Hungary
- Department of Anatomy and Histology, ELKH Laboratory of Redox Biology, University of Veterinary Medicine, Budapest, Hungary
- Chemistry Institute, University of Debrecen, Debrecen, Hungary
| | - Erika Pintér
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Zoltán Rakonczay
- Department of Pathophysiology, University of Szeged, Semmelweis U. 1, 6725, Szeged, Hungary.
| | - Lóránd Kiss
- Department of Pathophysiology, University of Szeged, Semmelweis U. 1, 6725, Szeged, Hungary.
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12
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Fan H, Bai Q, Yang Y, Shi X, Du G, Yan J, Shi J, Wang D. The key roles of reactive oxygen species in microglial inflammatory activation: Regulation by endogenous antioxidant system and exogenous sulfur-containing compounds. Eur J Pharmacol 2023; 956:175966. [PMID: 37549725 DOI: 10.1016/j.ejphar.2023.175966] [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: 03/21/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
Aberrant innate immunity in the brain has been implicated in the pathogenesis of several central nervous system (CNS) disorders, including Alzheimer's disease, Huntington's disease, Parkinson's disease, stroke, amyotrophic lateral sclerosis, and depression. Except for extraparenchymal CNS-associated macrophages, which predominantly afford protection against peripheral invading pathogens, it has been reported that microglia, a population of macrophage-like cells governing CNS immune defense in nearly all neurological diseases, are the main CNS resident immune cells. Although microglia have been recognized as the most important source of reactive oxygen species (ROS) in the CNS, ROS also may underlie microglial functions, especially M1 polarization, by modulating redox-sensitive signaling pathways. Recently, endogenous antioxidant systems, including glutathione, hydrogen sulfide, superoxide dismutase, and methionine sulfoxide reductase A, were found to be involved in regulating microglia-mediated neuroinflammation. A series of natural sulfur-containing compounds, including S-adenosyl methionine, S-methyl-L-cysteine, sulforaphane, DMS, and S-alk(enyl)-l-cysteine sulfoxide, modulating endogenous antioxidant systems have been discovered. We have summarized the current knowledge on the involvement of endogenous antioxidant systems in regulating microglial inflammatory activation and the effects of sulfur-containing compounds on endogenous antioxidant systems. Finally, we discuss the possibilities associated with compounds targeting the endogenous antioxidant system to treat neuroinflammation-associated diseases.
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Affiliation(s)
- Hua Fan
- Office of Research & Innovation, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003, China.
| | - Qianqian Bai
- Office of Research & Innovation, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003, China
| | - Yang Yang
- Office of Research & Innovation, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003, China
| | - Xiaofei Shi
- Department of Rheumatology and Immunology, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003, China
| | - Ganqin Du
- Department of Neurology, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003, China
| | - Junqiang Yan
- Department of Neurology, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003, China
| | - Jian Shi
- Department of Neurology, The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003, China
| | - Dongmei Wang
- School of Basic Medical Sciences, Henan University of Science and Technology, Luoyang, 471003, China.
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13
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Bao P, Gong Y, Wang Y, Xu M, Qian Z, Ni X, Lu J. Hydrogen Sulfide Prevents LPS-Induced Depression-like Behavior through the Suppression of NLRP3 Inflammasome and Pyroptosis and the Improvement of Mitochondrial Function in the Hippocampus of Mice. BIOLOGY 2023; 12:1092. [PMID: 37626978 PMCID: PMC10451782 DOI: 10.3390/biology12081092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/26/2023] [Accepted: 08/02/2023] [Indexed: 08/27/2023]
Abstract
Hydrogen sulfide (H2S) has been implicated to have antidepressive effects. We sought to investigate the prevention effects of H2S donor NaHS on depression-like behavior induced by lipopolysaccharide (LPS) in mice and its potential mechanisms. Sucrose preference, force swimming, open field, and elevate zero maze were used to evaluate depression-like behavior. NF-κB and NLRP3 inflammasome activation and mitochondrial function in the hippocampus were determined. It was found that depression-like behavior induced by LPS was prevented by NaHS pretreatment. LPS caused NF-κB and NLRP3 inflammasome activation in the hippocampus as evidenced by increased phosphorylated-p65 levels and increased NLRP3, ASC, caspase-1, and mature IL-1β levels in the hippocampus, which were also blocked by NaHS. LPS increased GSDMD-N levels and TUNEL-positive cells in the hippocampus, which was prevented by NaHS. Abnormal mitochondrial morphology in the hippocampus was found in LPS-treated mice. Mitochondrial membrane potential and ATP production were reduced, and ROS production was increased in the hippocampus of LPS-treated mice. NaHS pretreatment improved impaired mitochondrial morphology and increased membrane potential and ATP production and reduced ROS production in the hippocampus of LPS-treated mice. Our data indicate that H2S prevents LPS-induced depression-like behaviors by inhibiting NLRP3 inflammasome activation and pyroptosis and improving mitochondrial function in the hippocampus.
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Affiliation(s)
- Peng Bao
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Yuxiang Gong
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Yanjie Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Miaomiao Xu
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Zhenyu Qian
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
| | - Xin Ni
- National Clinical Research Center for Geriatric Disorders, Central South University Xiangya Hospital, Changsha 410008, China
- International Collaborative Research Center for Medical Metabolomics, Central South University Xiangya Hospital, Changsha 410008, China
| | - Jianqiang Lu
- School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China
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14
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Geng W, Liu X, Tao B, He Y, Li K, Gao P, Feng Q, Zhao P, Luo Z, Cai K. Nitric Oxide Scavenging and Hydrogen Sulfide Production Synergistically Treat Rheumatoid Arthritis. Adv Healthc Mater 2023; 12:e2202380. [PMID: 36337007 DOI: 10.1002/adhm.202202380] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Indexed: 11/09/2022]
Abstract
To restore the disordered endogenous gas levels is an efficient alternative for the treatment of rheumatoid arthritis (RA). Both insufficient hydrogen sulfide (H2 S) and excessive nitric oxide (NO) contribute to synovial inflammation. Herein, a new block polymer PEG10 -b-PNAPA30 -b-PEG10 composed of an NO-responsive monomer and a cysteine-triggered H2 S donor, which can simultaneously scavenge NO and release therapeutic H2 S for RA treatment, is reported. In vitro experiments demonstrate that the polymer exhibits a synergistic effect on suppressing reactive oxygen species levels and pro-inflammatory cytokine production via NF-κB signaling pathway. It leads to the polarization of macrophages from M1 to M2 phenotype. Moreover, the released H2 S further restrains NO production by suppressing the expression of iNOS. In vivo experiments with an RA rat model show that the system markedly mitigates the synovial inflammation, osteoporosis, and clinical symptoms of RA rats, which is attributed to the combination therapy of H2 S release and NO depletion. This work provides new insight into the synergistic treatment of RA and endogenous gas-related diseases.
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Affiliation(s)
- Wenbo Geng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Xuezhe Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Bailong Tao
- Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, P. R. China
| | - Ye He
- Thomas Lord Department of Mechanical Engineering & Materials Science, Duke University, Durham, NC, 27708, USA
| | - Ke Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Pengfei Gao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Qian Feng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Peng Zhao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Zhong Luo
- School of Life Science, Chongqing University, Chongqing, 400044, P. R. China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
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15
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Song X, Nie L, Long J, Zhao J, Liu X, Wang L, Liu D, Wang S, Liu S, Yang J. Hydrogen sulfide alleviates hypothyroidism-induced myocardial fibrosis in rats through stimulating autophagy and inhibiting TGF-β1/Smad2 pathway. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2023; 27:1-8. [PMID: 36575928 PMCID: PMC9806643 DOI: 10.4196/kjpp.2023.27.1.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 12/28/2021] [Accepted: 01/05/2022] [Indexed: 12/29/2022]
Abstract
Hypothyroidism alone can lead to myocardial fibrosis and result in heart failure, but traditional hormone replacement therapy does not improve the fibrotic situation. Hydrogen sulfide (H2S), a new gas signaling molecule, possesses anti-inflammatory, antioxidant, and anti-fibrotic capabilities. Whether H2S could improve hypothyroidism-induced myocardial fibrosis are not yet studied. In our study, H2S could decrease collagen deposition in the myocardial tissue of rats caused by hypothyroidism. Furthermore, in hypothyroidism-induced rats, we found that H2S could enhance cystathionine-gamma-lyase (CSE), not cystathionine β-synthase (CBS), protein expressions. Finally, we noticed that H2S could elevate autophagy levels and inhibit the transforming growth factor-β1 (TGF-β1) signal transduction pathway. In conclusion, our experiments not only suggest that H2S could alleviate hypothyroidism-induced myocardial fibrosis by activating autophagy and suppressing TGF-β1/SMAD family member 2 (Smad 2) signal transduction pathway, but also show that it can be used as a complementary treatment to conventional hormone therapy.
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Affiliation(s)
- Xiong Song
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Liangui Nie
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Junrong Long
- Department of Cardiology, The People's Hospital of Shuangfeng County, Loudi, Hunan 417700, China
| | - Junxiong Zhao
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Xing Liu
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Liuyang Wang
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Da Liu
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Sen Wang
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Shengquan Liu
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China,Correspondence Shengquan Liu, E-mail: , Jun Yang, E-mail:
| | - Jun Yang
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China,Correspondence Shengquan Liu, E-mail: , Jun Yang, E-mail:
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16
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The Role of Hydrogen Sulfide in Plaque Stability. Antioxidants (Basel) 2022; 11:antiox11122356. [PMID: 36552564 PMCID: PMC9774534 DOI: 10.3390/antiox11122356] [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: 10/12/2022] [Revised: 11/11/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022] Open
Abstract
Atherosclerosis is the greatest contributor to cardiovascular events and is involved in the majority of deaths worldwide. Plaque rapture or erosion precipitates life-threatening thrombi, resulting in the obstruction blood flow to the heart (acute coronary syndrome), brain (ischemic stroke) or low extremities (peripheral vascular diseases). Among these events, major causation dues to the plaque rupture. Although the initiation, procession, and precise time of controlling plaque rupture are unclear, foam cell formation and apoptosis, cell death, extracellular matrix components, protease expression and activity, local inflammation, intraplaque hemorrhage, and calcification contribute to the plaque instability. These alterations tightly associate with the function regulation of intraplaque various cell populations. Hydrogen sulfide (H2S) is gasotransmitter derived from methionine metabolism and exerts a protective role in the genesis of atherosclerosis. Recent progress also showed H2S mediated the plaque stability. In this review, we discuss the progress of endogenous H2S modulation on functions of vascular smooth muscle cells, monocytes/macrophages, and T cells, and the molecular mechanism in plaque stability.
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Aschner M, Skalny AV, Ke T, da Rocha JBT, Paoliello MMB, Santamaria A, Bornhorst J, Rongzhu L, Svistunov AA, Djordevic AB, Tinkov AA. Hydrogen Sulfide (H 2S) Signaling as a Protective Mechanism against Endogenous and Exogenous Neurotoxicants. Curr Neuropharmacol 2022; 20:1908-1924. [PMID: 35236265 PMCID: PMC9886801 DOI: 10.2174/1570159x20666220302101854] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 02/10/2022] [Accepted: 02/27/2022] [Indexed: 11/22/2022] Open
Abstract
In view of the significant role of H2S in brain functioning, it is proposed that H2S may also possess protective effects against adverse effects of neurotoxicants. Therefore, the objective of the present review is to discuss the neuroprotective effects of H2S against toxicity of a wide spectrum of endogenous and exogenous agents involved in the pathogenesis of neurological diseases as etiological factors or key players in disease pathogenesis. Generally, the existing data demonstrate that H2S possesses neuroprotective effects upon exposure to endogenous (amyloid β, glucose, and advanced-glycation end-products, homocysteine, lipopolysaccharide, and ammonia) and exogenous (alcohol, formaldehyde, acrylonitrile, metals, 6-hydroxydopamine, as well as 1-methyl-4-phenyl- 1,2,3,6- tetrahydropyridine (MPTP) and its metabolite 1-methyl-4-phenyl pyridine ion (MPP)) neurotoxicants. On the one hand, neuroprotective effects are mediated by S-sulfhydration of key regulators of antioxidant (Sirt1, Nrf2) and inflammatory response (NF-κB), resulting in the modulation of the downstream signaling, such as SIRT1/TORC1/CREB/BDNF-TrkB, Nrf2/ARE/HO-1, or other pathways. On the other hand, H2S appears to possess a direct detoxicative effect by binding endogenous (ROS, AGEs, Aβ) and exogenous (MeHg) neurotoxicants, thus reducing their toxicity. Moreover, the alteration of H2S metabolism through the inhibition of H2S-synthetizing enzymes in the brain (CBS, 3-MST) may be considered a significant mechanism of neurotoxicity. Taken together, the existing data indicate that the modulation of cerebral H2S metabolism may be used as a neuroprotective strategy to counteract neurotoxicity of a wide spectrum of endogenous and exogenous neurotoxicants associated with neurodegeneration (Alzheimer's and Parkinson's disease), fetal alcohol syndrome, hepatic encephalopathy, environmental neurotoxicant exposure, etc. In this particular case, modulation of H2S-synthetizing enzymes or the use of H2S-releasing drugs should be considered as the potential tools, although the particular efficiency and safety of such interventions are to be addressed in further studies.
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Affiliation(s)
- Michael Aschner
- Address correspondence to this author at the Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; E-mail
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Huerta de la Cruz S, Rodríguez-Palma EJ, Santiago-Castañeda CL, Beltrán-Ornelas JH, Sánchez-López A, Rocha L, Centurión D. Exogenous hydrogen sulfide restores CSE and CBS but no 3-MST protein expression in the hypothalamus and brainstem after severe traumatic brain injury. Metab Brain Dis 2022; 37:1863-1874. [PMID: 35759072 DOI: 10.1007/s11011-022-01033-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 06/10/2022] [Indexed: 02/07/2023]
Abstract
Hydrogen sulfide (H2S) is a gasotransmitter endogenously synthesized by cystathionine-γ-lyase (CSE), cystathionine-β-synthase (CBS), and 3-mercaptopiruvate sulfurtransferase (3-MST) enzymes. H2S exogenous administration prevents the development of hemodynamic impairments after traumatic brain injury (TBI). Since the hypothalamus and the brainstem highly regulate the cardiovascular system, this study aimed to evaluate the effect of NaHS subchronic treatment on the changes of H2S-sythesizing enzymes in those brain areas after TBI and in physiological conditions. For that purpose, animals were submitted to a lateral fluid percussion injury, and the changes in CBS, CSE, and 3-MST protein expression were measured by western blot at days 1, 2, 3, 7, and 28 in the vehicle group, and 7 and 28 days after NaHS treatment. After severe TBI induction, we found a decrease in CBS and CSE protein expression in the hypothalamus and brainstem; meanwhile, 3-MST protein expression diminished only in the hypothalamus compared to the Sham group. Remarkably, i.p. daily injections of NaHS, an H2S donor, (3.1 mg/kg) during seven days: (1) restored CBS and CSE but no 3-MST protein expression in the hypothalamus at day 28 post-TBI; (2) reestablished only CSE in brainstem 7 and 28 days after TBI; and (3) did not modify H2S-sythesizing enzymes protein expression in uninjured animals. Mainly, our results show that the NaHS effect on CBS and CSE protein expression is observed in a time- and tissue-dependent manner with no effect on 3-MST expression, which may suggest a potential role of H2S synthesis in hypothalamus and brainstem impairments observed after TBI.
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Affiliation(s)
| | - Erick J Rodríguez-Palma
- Neurobiology of Pain Laboratory, Departamento de Farmacobiología, Cinvestav, Sede Sur, Mexico City, Mexico
| | | | | | | | - Luisa Rocha
- Departamento de Farmacobiología, Cinvestav-Coapa, Mexico City, Mexico
| | - David Centurión
- Departamento de Farmacobiología, Cinvestav-Coapa, Mexico City, Mexico.
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Arora P, Singh K, Kumari M, Trivedi R. Temporal profile of serum metabolites and inflammation following closed head injury in rats is associated with HPA axis hyperactivity. Metabolomics 2022; 18:28. [PMID: 35486220 DOI: 10.1007/s11306-022-01886-8] [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: 10/01/2021] [Accepted: 04/06/2022] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Closed head injury (CHI) causes neurological disability along with systemic alterations that can activate neuro-endocrine response through hypothalamic-pituitary-adrenal (HPA) axis activation. A dysregulated HPA axis function can lead to relocation of energy substrates and alteration in metabolic pathways and inflammation at the systemic level. OBJECTIVES Assessment of time-dependent changes in serum metabolites and inflammation after both mild and moderate CHI. Along with this, serum corticosterone levels and hypothalamic microglial response were observed. METHODS Rats underwent mild and moderate weight-drop injury and their serum and hypothalamus were assessed at acute, sub-acute and chronic timepoints. Changes in serum metabolomics were determined using high resolution NMR spectroscopy. Serum inflammatory cytokine, corticosterone levels and hypothalamic microglia were assessed at all timepoints. RESULTS Metabolites including lactate, choline and branched chain amino acids were found as the classifiers that helped distinguish between control and injured rats during acute, sub-acute and chronic timepoints. While, increased αglucose: βglucose and TMAO: choline ratios after acute and sub-acute timepoints of mild injury differentiated from moderate injured rats. The injured rats also showed distinct inflammatory profile where IL-1β and TNF-α levels were upregulated in moderate injured rats while IL-10 levels were downregulated in mild injured rats. Furthermore, injury specific alterations in serum metabolic and immunologic profile were found to be associated with hyperactive HPA axis, with consistent increase in serum corticosterone concentration post injury. The hypothalamic microglia showed a characteristic activated de-ramified cellular morphology in both mild and moderate injured rats. CONCLUSION The study suggests that HPA axis hyperactivity along with hypothalamic microglial activation led to temporal changes in the systemic metabolism and inflammation. These time dependent changes in the metabolite profile of rats can further strengthen the knowledge of diagnostic markers and help distinguish injury related outcomes after TBI.
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Affiliation(s)
- Palkin Arora
- Radiological, Nuclear and Imaging Sciences (RNAIS), Institute of Nuclear Medicine and Allied Sciences (INMAS), DRDO, Delhi, 110054, India
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India
| | - Kavita Singh
- Radiological, Nuclear and Imaging Sciences (RNAIS), Institute of Nuclear Medicine and Allied Sciences (INMAS), DRDO, Delhi, 110054, India
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Megha Kumari
- Radiological, Nuclear and Imaging Sciences (RNAIS), Institute of Nuclear Medicine and Allied Sciences (INMAS), DRDO, Delhi, 110054, India
- Department of Biotechnology, Delhi Technological University (DTU), Delhi, 110042, India
| | - Richa Trivedi
- Radiological, Nuclear and Imaging Sciences (RNAIS), Institute of Nuclear Medicine and Allied Sciences (INMAS), DRDO, Delhi, 110054, India.
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20
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Pan S, Ma Y, Yang R, Lu X, You Q, Ye T, Huang C. Indole-3-Carbinol Selectively Prevents Chronic Stress-Induced Depression-but not Anxiety-Like Behaviors via Suppressing Pro-Inflammatory Cytokine Production and Oxido-Nitrosative Stress in the Brain. Front Pharmacol 2022; 13:829966. [PMID: 35242039 PMCID: PMC8886242 DOI: 10.3389/fphar.2022.829966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/24/2022] [Indexed: 01/01/2023] Open
Abstract
Indole-3-carbinol (I3C), a phytochemical enriched in most cruciferous vegetables, has been shown to display various biological activities such as anti-oxidative stress, anti-inflammation, and anti-carcinogenesis. In this study, we investigated the regulatory effect of I3C on chronic stress-induced behavioral abnormalities in mice. Results showed that repeated I3C treatment at the dose of 10, 30, and 60 mg/kg prevented chronic social defeat stress (CSDS)-induced behavioral abnormalities in the tail suspension test, forced swimming test, sucrose preference test, and social interaction test in mice, and did not affect CSDS-induced behavioral abnormalities in the elevated plus maze, light-dark test, and open-field test, suggesting that the I3C treatment selectively prevents the onset of depression- but not anxiety-like behaviors in chronically stressed mice. Further analysis demonstrated that repeated I3C treatment (60 mg/kg, 10 days) prevented CSDS-induced increases in levels of interleukin-1β (IL-1β), IL-6, and tumor necrosis factor-α (TNF-α) mRNA and protein, but did not affect CSDS-induced decreases in levels of IL-4, IL-10, and Ym-1 mRNA and/or protein in the hippocampus and prefrontal cortex, suggesting that I3C can selectively prevent chronic stress-induced pro-inflammatory but not anti-inflammatory responses in the brain. Further analysis showed that repeated I3C treatment (60 mg/kg, 10 days) prevented CSDS-induced increases in levels of nitrite and malondialdehyde (MDA), decreases in contents of glutathione (GSH), and decreases in levels of brain derived neurotrophic factor (BDNF) protein in the hippocampus and prefrontal cortex. These results demonstrated that I3C selectively prevents chronic stress-induced depression-like behaviors in mice likely through suppressing neuroinflammation and oxido-nitrosative stress in the brain.
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Affiliation(s)
- Shengying Pan
- Department of Neurology, The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Danyang, China
| | - Yaoying Ma
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Rongrong Yang
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, China
| | - Xu Lu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Qingsheng You
- Department of Cardiothoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Ting Ye
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
| | - Chao Huang
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, China
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21
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Li F, Xiang H, Gu Y, Ye T, Lu X, Huang C. Innate immune stimulation by monophosphoryl lipid A prevents chronic social defeat stress-induced anxiety-like behaviors in mice. J Neuroinflammation 2022; 19:12. [PMID: 34996472 PMCID: PMC8742352 DOI: 10.1186/s12974-021-02377-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/29/2021] [Indexed: 02/06/2023] Open
Abstract
Background Innate immune pre-stimulation can prevent the development of depression-like behaviors in chronically stressed mice; however, whether the same stimulation prevents the development of anxiety-like behaviors in animals remains unclear. We addressed this issue using monophosphoryl lipid A (MPL), a derivative of lipopolysaccharide (LPS) that lacks undesirable properties of LPS but still keeps immune-enhancing activities. Methods The experimental mice were pre-injected intraperitoneally with MPL before stress exposure. Depression was induced through chronic social defeat stress (CSDS). Behavioral tests were conducted to identify anxiety-like behaviors. Real-time polymerase chain reaction (PCR) and biochemical assays were employed to examine the gene and protein expression levels of pro-inflammatory markers. Results A single MPL injection at the dose of 400 and 800 μg/kg 1 day before stress exposure prevented CSDS-induced anxiety-like behaviors, and a single MPL injection (400 μg/kg) five but not 10 days before stress exposure produced similar effect. The preventive effect of MPL on anxiety-like behaviors was also observed in CSDS mice who received a second MPL injection 10 days after the first MPL injection or a 4 × MPL injection 10 days before stress exposure. MPL pre-injection also prevented the production of pro-inflammatory cytokines in the hippocampus and medial prefrontal cortex in CSDS mice, and inhibiting the central immune response by minocycline pretreatment abrogated the preventive effect of MPL on CSDS-induced anxiety-like behaviors and pro-inflammatory cytokine productions in the brain. Conclusions Pre-stimulation of the innate immune system by MPL can prevent chronic stress-induced anxiety-like behaviors and neuroinflammatory responses in the brain in mice.
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Affiliation(s)
- Fu Li
- Department of Pharmacy, Changzhou Geriatric Hospital Affiliated to Soochow University, Changzhou No.7 People's Hospital, 288# Yanling East Road, Changzhou, 213000, Jiangsu, China
| | - Haitao Xiang
- Department of Neurosurgery, Suzhou Kowloon Hospital, Shanghai Jiaotong University School of Medicine, #118 Wansheng Street, Suzhou, 215028, Jiangsu, China
| | - Yue Gu
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Jiangsu, 226001, Nantong, China
| | - Ting Ye
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Jiangsu, 226001, Nantong, China
| | - Xu Lu
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Jiangsu, 226001, Nantong, China.
| | - Chao Huang
- Department of Pharmacology, School of Pharmacy, Nantong University, #19 Qixiu Road, Jiangsu, 226001, Nantong, China.
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22
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Liu Z, Zhu Z, He Y, Kang Q, Li F, Zhang W, He Y, Lin Y, Huang B, Mo M, Xu P, Zhu X. A Novel Hydrogen Sulfide Donor Reduces Pilocarpine-Induced Status Epilepticus and Regulates Microglial Inflammatory Profile. Front Cell Neurosci 2021; 15:780447. [PMID: 34924959 PMCID: PMC8674866 DOI: 10.3389/fncel.2021.780447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 10/25/2021] [Indexed: 01/07/2023] Open
Abstract
Although epilepsy is one of the most common neurologic disorders, there is still a lack of effective therapeutic drugs for it. Recently, we synthesized a novel hydrogen sulfide (H2S) donor, which is found to reduce seizures in animal models effectively. But it remains to be determined for its mechanism. In the present study, we found that the novel H2S donor could reduce pilocarpine-induced seizures in mice. It alleviated the epileptic behavior, the hippocampal electroencephalography (EEG) activity of seizures, and the damage of hippocampal neurons in status epilepticus mice. In addition, the novel H2S donor could reduce microglial inflammatory response. It not only reduced the upregulation of pro-inflammatory markers [inducible nitric oxide synthase (iNOS) and cyclooxygenase 2 (COX2)] in status epilepticus mice, but also increased the levels of microglial anti-inflammatory marker arginase-1 (Arg-1). In lipopolysaccharide-treated microglia BV2 cells, administration of the H2S donor also significantly reduced the lipopolysaccharide-induced upregulation of the expression of the pro-inflammatory markers and increased the expression of the anti-inflammatory markers. Thus, the novel H2S donor regulates microglial inflammatory profile in status epilepticus mice and in vitro. These results suggested that the novel H2S donor can reduce seizures and regulate microglial inflammatory profile, which may be a novel mechanism and potential therapeutic strategy of the H2S donor anti-seizures.
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Affiliation(s)
- Zhongrui Liu
- Department of Physiology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China.,Department of Neurology, Key Laboratory of Neurogenetics and Channelopathies, Institute of Neuroscience, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Ziting Zhu
- Department of Neurology, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yan He
- Department of Physiology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China.,Department of Neurology, Key Laboratory of Neurogenetics and Channelopathies, Institute of Neuroscience, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Qiyun Kang
- Department of Physiology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China.,Department of Neurology, Key Laboratory of Neurogenetics and Channelopathies, Institute of Neuroscience, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Fei Li
- Department of Physiology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China.,Department of Neurology, Key Laboratory of Neurogenetics and Channelopathies, Institute of Neuroscience, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Wenlong Zhang
- Department of Neurology, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yuehua He
- Department of Physiology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China.,Department of Neurology, Key Laboratory of Neurogenetics and Channelopathies, Institute of Neuroscience, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yuwan Lin
- Department of Neurology, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Baoyi Huang
- Department of Physiology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China.,Department of Neurology, Key Laboratory of Neurogenetics and Channelopathies, Institute of Neuroscience, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Mingshu Mo
- Department of Neurology, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Pingyi Xu
- Department of Neurology, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Xiaoqin Zhu
- Department of Physiology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China.,Department of Neurology, Key Laboratory of Neurogenetics and Channelopathies, Institute of Neuroscience, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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23
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Donertas Ayaz B, Oliveira AC, Malphurs WL, Redler T, de Araujo AM, Sharma RK, Sirmagul B, Zubcevic J. Central Administration of Hydrogen Sulfide Donor NaHS Reduces Iba1-Positive Cells in the PVN and Attenuates Rodent Angiotensin II Hypertension. Front Neurosci 2021; 15:690919. [PMID: 34602965 PMCID: PMC8479468 DOI: 10.3389/fnins.2021.690919] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 08/10/2021] [Indexed: 12/21/2022] Open
Abstract
Hydrogen sulfide (H2S) is a gaseous signaling molecule with neuromodulatory, anti-inflammatory, and anti-hypertensive effects. Here, we investigate whether chronic intracerebroventricular (ICV) infusion of sodium hydrosulfide (NaHS), an H2S donor, can alleviate angiotensin II (Ang II)-induced hypertension (HTN), improve autonomic function, and impact microglia in the paraventricular nucleus (PVN) of the hypothalamus, a brain region associated with autonomic control of blood pressure (BP) and neuroinflammation in HTN. Chronic delivery of Ang II (200 ng/kg/min, subcutaneous) for 4 weeks produced a typical increase in BP and sympathetic drive and elevated the number of ionized calcium binding adaptor molecule 1-positive (Iba1+) cells in the PVN of male, Sprague-Dawley rats. ICV co-infusion of NaHS (at 30 and/or 60 nmol/h) significantly attenuated these effects of Ang II. Ang II also increased the abundance of cecal Deltaproteobacteria and Desulfovibrionales, among others, which was prevented by ICV NaHS co-infusion at 30 and 60 nmol/h. We observed no differences in circulating H2S between the groups. Our results suggest that central H2S may alleviate rodent HTN independently from circulating H2S via effects on autonomic nervous system and PVN microglia.
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Affiliation(s)
- Basak Donertas Ayaz
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
- Department of Pharmacology, College of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Aline C. Oliveira
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, FL, United States
| | - Wendi L. Malphurs
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
| | - Ty Redler
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
| | - Alan Moreira de Araujo
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, United States
| | - Ravindra K. Sharma
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, FL, United States
| | - Basar Sirmagul
- Department of Pharmacology, College of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Jasenka Zubcevic
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States
- Department of Physiology and Pharmacology, Center for Hypertension and Precision Medicine, College of Medicine, University of Toledo, Toledo, OH, United States
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24
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Hydrogen Sulfide Ameliorates Lipopolysaccharide-Induced Memory Impairment in Mice by Reducing Apoptosis, Oxidative, and Inflammatory Effects. Neurotox Res 2021; 39:1310-1322. [PMID: 34021860 DOI: 10.1007/s12640-021-00374-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 04/19/2021] [Accepted: 05/10/2021] [Indexed: 01/06/2023]
Abstract
Hydrogen sulfide (H2S) is reported to have a neuroprotective activity; however, the role of H2S in neuroinflammation-induced neuronal damage is ambiguous. Here, we aimed to evaluate the underlying mechanisms for the neuroprotective effect of NaHS, a known H2S donor, against lipopolysaccharide (LPS)-induced memory impairment (MI). All the treatments were administered for 28 days, and LPS (0.25 mg/kg i.p.) was co-administered intermittently for 7 days from days 15 to 21. Morris water maze (MWM) and Y-maze tests were performed to evaluate MI. Neurodegeneration was histopathologically examined, and the brain homogenates were characterized for reduced glutathione (GSH), superoxide dismutase (SOD), malondialdehyde (MDA), tumor necrosis factor (TNF)-α, interleukin (IL)-6, caspase-3, c-Jun, and acetylcholinesterase (AChE) by biochemical analysis. H2S administration significantly improved spatial and working memory in MWM and Y-maze tasks, respectively. Exogenous H2S significantly reversed LPS-induced oxidative stress as evidenced by improved GSH, MDA, and SOD levels. H2S pretreatment significantly attenuated LPS-induced apoptosis and inflammation by decreasing c-Jun and caspase-3 levels and inhibiting TNF-α and IL-6, respectively. The decrease in these markers was supported by H&E and Nissl staining, which confirmed the anti-necrotic activity of H2S. However, there was no significant improvement in LPS-induced increase in AChE activity. These results indicate that chronic systemic inflammation leads to neurodegeneration and MI and H2S exerts its neuroprotective effect due to its anti-oxidative, anti-inflammatory, and anti-apoptotic potential via modulation of JNK and extrinsic apoptosis pathways.
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25
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Shentu Y, Tian Q, Yang J, Liu X, Han Y, Yang D, Zhang N, Fan X, Wang P, Ma J, Chen R, Li D, Liu S, Wang Y, Mao S, Gong Y, Du C, Fan J. Upregulation of KDM6B contributes to lipopolysaccharide-induced anxiety-like behavior via modulation of VGLL4 in mice. Behav Brain Res 2021; 408:113305. [PMID: 33865886 DOI: 10.1016/j.bbr.2021.113305] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 04/01/2021] [Accepted: 04/12/2021] [Indexed: 12/13/2022]
Abstract
Histone H3K27me3 demethylase KDM6B (also known as Jumonji domain-containing protein D3, JMJD3) plays vital roles in the etiology of inflammatory responses; however, little is known about the role of KDM6B in neuroinflammation-induced anxiety-like behavior. The present study aimed to investigate the potential role of KDM6B in lipopolysaccharide (LPS)-induced anxiety-like behavior and to evaluate whether it is associated with the modulation of vestigial-like family member 4 (VGLL4). The elevated plus maze, light-dark box, and open-field test were performed to test the anxiety-like behavior induced by LPS in C57BL/6 J male mice. Levels of relative protein expression in the hippocampus were quantified by western blotting. KDM6B inhibitor GSK-J4 and microglia inhibitor minocycline as well as adeno-associated virus of Vgll4 shRNA were used to explore the underlying mechanisms. We found that KDM6B, VGLL4, interleukin-1β (IL-1β), and ionized calcium-binding adaptor molecule-1 (Iba-1, microglia marker) protein levels were increased in LPS-dose dependent manner in the hippocampus but not in prefrontal cortex. GSK-J4 treatment attenuated LPS-induced VGLL4, the signal transducer and activator of transcription 3 (STAT3), IL-1β and Iba-1 upregulation and anxiety-like behavior. Knockdown VGLL4 with Vgll4 shRNA prevented the increase of anxiety-like behavior and levels of STAT3, IL-1β, and Iba-1 expression in the hippocampus of LPS-treated mice. Moreover, minocycline, an inhibitor of microglia treatment blunted LPS-induced anxiety-like behavior. Collectively, these results demonstrate that the induction of neuroinflammation by LPS promotes KDM6B activation in the hippocampus, and LPS-induced anxiety-like behavior is associated with upregulation of VGLL4 by KDM6B in the hippocampus.
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Affiliation(s)
- Yangping Shentu
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Qiuyun Tian
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Jinge Yang
- Department of Medical Technology, Jiangxi Medical College, Shangrao, Jiangxi, 334709, China
| | - Xiaoyuan Liu
- Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Yujiao Han
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Dichen Yang
- Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Nan Zhang
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Xiaofang Fan
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Ping Wang
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Jianshe Ma
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Ran Chen
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Dantong Li
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Shouting Liu
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Yongyu Wang
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Sunzhong Mao
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Yongsheng Gong
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Congkuo Du
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Junming Fan
- Institute of Hypoxia Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
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26
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Dimethyl Trisulfide Diminishes Traumatic Neuropathic Pain Acting on TRPA1 Receptors in Mice. Int J Mol Sci 2021; 22:ijms22073363. [PMID: 33806000 PMCID: PMC8036544 DOI: 10.3390/ijms22073363] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 12/20/2022] Open
Abstract
Pharmacotherapy of neuropathic pain is still challenging. Our earlier work indicated an analgesic effect of dimethyl trisulfide (DMTS), which was mediated by somatostatin released from nociceptor nerve endings acting on SST4 receptors. Somatostatin release occurred due to TRPA1 ion channel activation. In the present study, we investigated the effect of DMTS in neuropathic pain evoked by partial ligation of the sciatic nerve in mice. Expression of the mRNA of Trpa1 in murine dorsal-root-ganglion neurons was detected by RNAscope. Involvement of TRPA1 ion channels and SST4 receptors was tested with gene-deleted animals. Macrophage activity at the site of the nerve lesion was determined by lucigenin bioluminescence. Density and activation of microglia in the spinal cord dorsal horn was verified by immunohistochemistry and image analysis. Trpa1 mRNA is expressed in peptidergic and non-peptidergic neurons in the dorsal root ganglion. DMTS ameliorated neuropathic pain in Trpa1 and Sstr4 WT mice, but not in KO ones. DMTS had no effect on macrophage activity around the damaged nerve. Microglial density in the dorsal horn was reduced by DMTS independently from TRPA1. No effect on microglial activation was detected. DMTS might offer a novel therapeutic opportunity in the complementary treatment of neuropathic pain.
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27
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Kumar M, Sandhir R. Hydrogen sulfide attenuates hyperhomocysteinemia-induced blood-brain barrier permeability by inhibiting MMP-9. Int J Neurosci 2021; 132:1061-1071. [PMID: 33287606 DOI: 10.1080/00207454.2020.1860967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Backgroud: Hyperhomocysteinemia (HHcy) is implicated in various neurovascular disorders including vascular dementia, subarachnoid hemorrhage and stroke. Elevated homocysteine (Hcy) levels are associated with increased oxidative stress and compromised blood-brain barrier (BBB) integrity. Hydrogen sulfide (H2S) has recently emerged as potent neuroprotective molecule in various neurological conditions including those associated with HHcy. The present study evaluates the protective effect of sodium hydrogen sulfide (NaHS; a source of H2S) on HHcy-induced BBB dysfunction and underpin molecular mechanisms.Materials and methods: Supplementation of NaHS restored the increased BBB permeability in the cortex and hippocampus of HHcy animals assessed in terms of diffused sodium fluorescein and Evans blue tracer dyes in the brain. Activity of matrix metalloproteinases (MMPs) assessed by gelatinase activity and in situ gelatinase assay was restored to the normal in the cortex and hippocampus of HHcy animals supplemented with NaHS.Results: Application of gelatin zymography revealed that specifically MMP-9 activity was increased in the cortex and hippocampus of HHcy animals, which was inhibited by NaHS supplementation. Real-time RT-PCR analysis showed that NaHS administration also decreased mRNA expression of MMP-9 in the hippocampus of HHcy animals. NaHS supplementation was further observed to reduce water retention in the brain regions of Hcy treated animals.Conclusion: Taken together, these findings suggest that NaHS supplementation ameliorates HHcy-induced BBB permeability and brain edema by inhibiting the mRNA expression and activity of MMP-9. Therefore, H2S and H2S releasing drugs may be used as a novel therapeutic approach to treat HHcy-associated neurovascular disorders.
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Affiliation(s)
- Mohit Kumar
- Department of Biochemistry, Basic Medical Science Block-II, Panjab University, Chandigarh, India.,College of Pharmacy, University of Kentucky, Lexington, KY, USA
| | - Rajat Sandhir
- Department of Biochemistry, Basic Medical Science Block-II, Panjab University, Chandigarh, India
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