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Li S, Song H, Sun Y, Sun Y, Zhang H, Gao Z. Inhibition of soluble epoxide hydrolase as a therapeutic approach for blood-brain barrier dysfunction. Biochimie 2024; 223:13-22. [PMID: 38531484 DOI: 10.1016/j.biochi.2024.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/20/2024] [Accepted: 03/23/2024] [Indexed: 03/28/2024]
Abstract
The blood-brain barrier (BBB) is a protective semi-permeable structure that regulates the exchange of biomolecules between the peripheral blood and the central nervous system (CNS). Due to its specialized tight junctions and low vesicle trafficking, the BBB strictly limits the paracellular passage and transcellular transport of molecules to maintain the physiological condition of brain tissues. BBB breakdown is associated with many CNS disorders. Soluble epoxide hydrolase (sEH) is a hydrolase enzyme that converts epoxy-fatty acids (EpFAs) to their corresponding diols and is involved in the onset and progression of multiple diseases. EpFAs play a protective role in the central nervous system via preventing neuroinflammation, making sEH a potential therapeutic target for CNS diseases. Recent studies showed that sEH inhibition prevented BBB impairment caused by stroke, hemorrhage, traumatic brain injury, hyperglycemia and sepsis via regulating the expression of tight junctions. In this review, the protective actions of sEH inhibition on BBB and potential mechanisms are summarized, and some important questions that remain to be resolved are also addressed.
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Affiliation(s)
- Shuo Li
- Hebei Province Key Laboratory of Molecular Chemistry for Drug, School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - Huijia Song
- Hebei Province Key Laboratory of Molecular Chemistry for Drug, School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - Yanping Sun
- Hebei Province Key Laboratory of Molecular Chemistry for Drug, School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - Yongjun Sun
- Hebei Province Key Laboratory of Molecular Chemistry for Drug, School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - Huimin Zhang
- Hebei Province Key Laboratory of Molecular Chemistry for Drug, School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - Zibin Gao
- Hebei Province Key Laboratory of Molecular Chemistry for Drug, School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China.
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2
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Wang Q, Deng T, Xie Y, Lu H, Zhang T, Gao D. Association of α-HBDH levels with the severity and recurrence after acute ischemic stroke. Eur J Med Res 2024; 29:347. [PMID: 38926868 PMCID: PMC11201310 DOI: 10.1186/s40001-024-01944-y] [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: 04/05/2024] [Accepted: 06/19/2024] [Indexed: 06/28/2024] Open
Abstract
OBJECTIVE α-HBDH serves as a biomarker of myocardial damage and is implicated in adverse outcomes across various critical illnesses. Our study aimed to assess the correlation between α-HBDH levels, and severity and recurrence of acute ischemic stroke (AIS). METHODS We enrolled patients with mild-to-moderate AIS within 72 h of onset. Based on the baseline score of the National Institutes of Health Stroke Scale (bNIHSS) at registration, patients were categorized into mild (bNIHSS ≤ 4 points) and moderate AIS groups (4 < bNIHSS ≤ 10 points). Subsequently, based on the normal upper limit of α-HBDH, patients were divided into low-level α-HBDH (≤ 180 U/L) and high-level α-HBDH (> 180 U/L) groups. Multivariate logistic regression analysis and Cox proportional hazard regression analysis were employed to evaluate the relationship between α-HBDH levels and bNIHSS scores as well as the risk of recurrent AIS within 90 days. RESULTS We observed a significant association between higher baseline levels of α-HBDH and increased bNIHSS scores, indicating a more severe AIS (odds ratio = 24.449; 95% confidence interval [CI], 8.749-68.324; p < 0.01). Additionally, the risk of recurrent AIS within 90 days was 4.666 times higher in the high-level α-HBDH group compared to the low-level group (hazard ratio = 4.666; 95% CI, 2.481-8.777; p < 0.01). CONCLUSIONS The baseline level of α-HBDH is significantly correlated with the severity of AIS and the risk of recurrent AIS within 90 days.
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Affiliation(s)
- Qiang Wang
- Department of Neurology, Beijing Bo'ai Hospital, School of Rehabilitation Medicine, Capital Medical University, Beijing, 100068, China
| | - Ting Deng
- Department of Infectious Diseases, Beijing Bo'ai Hospital, School of Rehabilitation Medicine, Capital Medical University, Beijing, 100068, China
| | - Yuanyuan Xie
- Department of Emergency, Beijing Bo'ai Hospital, School of Rehabilitation Medicine, Capital Medical University, Beijing, 100068, China
| | - Haitao Lu
- Department of Neurology, Beijing Bo'ai Hospital, School of Rehabilitation Medicine, Capital Medical University, Beijing, 100068, China
| | - Tong Zhang
- Department of Neurology, Beijing Bo'ai Hospital, School of Rehabilitation Medicine, Capital Medical University, Beijing, 100068, China.
| | - Daiquan Gao
- Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
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3
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Li Y, Yu Q, Peng H, Mingjun X, Xu W, Zheng T, Zhao T, Xia M, Wu J, Stavrinou P, Goldbrunner R, Xie Y, Zhang G, Feng Y, Guan Y, Zheng F, Sun P. Jingfang granules protects against intracerebral hemorrhage by inhibiting neuroinflammation and protecting blood-brain barrier damage. Aging (Albany NY) 2024; 16:9023-9046. [PMID: 38809507 PMCID: PMC11164481 DOI: 10.18632/aging.205854] [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: 10/16/2023] [Accepted: 04/10/2024] [Indexed: 05/30/2024]
Abstract
Intracerebral hemorrhage (ICH) can induce intensive oxidative stress, neuroinflammation, and brain cell apoptosis. However, conventional methods for ICH treatment have many disadvantages. There is an urgent need for alternative, effective therapies with minimal side effects. Pharmacodynamics experiment, molecular docking, network pharmacology, and metabolomics were adopted to investigate the treatment and its mechanism of Jingfang Granules (JFG) in ICH. In this study, we investigated the therapeutic effects of JFG on ICH using behavioral, brain water content and Magnetic resonance imaging experiments. However, the key active component and targets of JFG remain unknown. Here we verified that JFG was beneficial to improve brain injury after ICH. A network pharmacology analysis revealed that the anti-inflammatory effect of JFG is predominantly mediated by its activation of the phosphatidylinositol 3-kinase (PI3K)/AKT pathway through Luteolin, (+)-Anomalin and Phaseol and their targeting of AKT1, tumor necrosis factorα (TNF-α), and interleukin-1β (IL-1β). Molecular docking analyses revealed an average affinity of -8.633 kcal/mol, indicating a binding strength of less than -5 kcal/mol. Metabolomic analysis showed that JFG exerted its therapeutic effect on ICH by regulating metabolic pathways, such as the metabolism of taurine and hypotaurine, biosynthesis of valine, leucine, and isoleucine. In conclusion, we demonstrated that JFG attenuated neuroinflammation and BBB injury subsequent to ICH by activating the PI3K/Akt signaling pathway.
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Affiliation(s)
- Yanling Li
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Ji’nan, China
| | - Qingying Yu
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Huiyuan Peng
- Department of Pharmacy, Zhongshan Hospital of Traditional Chinese Medicine, Zhong Shan, China
| | - Xie Mingjun
- College of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Ji’nan, China
| | - WenHua Xu
- Prevention and Treatment Center, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Shenzhen, China
| | - Tingting Zheng
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Ji’nan, China
| | - Tingting Zhao
- Shandong University of Traditional Chinese Medicine, Ji’nan, China
| | - Mengyao Xia
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Ji’nan, China
| | - Jibiao Wu
- Innovation Research Institute of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Ji’nan, China
| | - Pantelis Stavrinou
- Department of Neurosurgery, Center for Neurosurgery, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
| | - Roland Goldbrunner
- Department of Neurosurgery, Center for Neurosurgery, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
| | - Yicheng Xie
- The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Guimin Zhang
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co., Ltd., Linyi, China
| | - Yu Feng
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Ji’nan, China
| | - Yongxia Guan
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co., Ltd., Linyi, China
| | - Feng Zheng
- Department of Neurosurgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Peng Sun
- Innovation Research Institute of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Ji’nan, China
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Griñán‐Ferré C, Jarné‐Ferrer J, Bellver‐Sanchís A, Codony S, Puigoriol‐Illamola D, Sanfeliu C, Oh Y, Lee S, Vázquez S, Pallàs M. Novel molecular mechanism driving neuroprotection after soluble epoxide hydrolase inhibition: Insights for Alzheimer's disease therapeutics. CNS Neurosci Ther 2024; 30:e14511. [PMID: 37905690 PMCID: PMC11017401 DOI: 10.1111/cns.14511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 09/21/2023] [Accepted: 10/09/2023] [Indexed: 11/02/2023] Open
Abstract
BACKGROUND Neuroinflammation is widely recognized as a significant hallmark of Alzheimer's disease (AD). To combat neuroinflammation, the inhibition of the soluble epoxide hydrolase (sEH) enzyme has been demonstrated crucial. Importantly, sEH inhibition could be related to other neuroprotective pathways described in AD. AIMS The aim of the study was to unveil new molecular pathways driving neuroprotection through sEH, we used an optimized, potent, and selective sEH inhibitor (sEHi, UB-SCG-51). MATERIALS AND METHODS UB-SCG-51 was tested in neuroblastoma cell line, SH-SY5Y, in primary mouse and human astrocytes cultures challenged with proinflammatory insults and in microglia cultures treated with amyloid oligomers, as well as in mice AD model (5XFAD). RESULTS UB-SCG-51 (10 and 30 μM) prevented neurotoxic reactive-astrocyte conversion in primary mouse astrocytes challenged with TNF-α, IL-1α, and C1q (T/I/C) combination for 24 h. Moreover, in microglial cultures, sEHi reduced inflammation and glial activity. In addition, UB-SCG-51 rescued 5XFAD cognitive impairment, reducing the number of Amyloid-β plaques and Tau hyperphosphorylation accompanied by a reduction in neuroinflammation and apoptotic markers. Notably, a transcriptional profile analysis revealed a new pathway modulated by sEHi treatment. Specifically, the eIF2α/CHOP pathway, which promoted the endoplasmic reticulum response, was increased in the 5XFAD-treated group. These findings were confirmed in human primary astrocytes by combining sEHi and eIF2α inhibitor (eIF2αi) treatment. Besides, combining both treatments resulted in increased in C3 gene expression after T/I/C compared with the group treated with sEHi alone in cultures. DISCUSSION Therefore, sEHi rescued cognitive impairment and neurodegeneration in AD mice model, based on the reduction of inflammation and eIF2α/CHOP signaling pathway. CONCLUSIONS In whole, our results support the concept that targeting neuroinflammation through sEH inhibition is a promising therapeutic strategy to fight against Alzheimer's disease with additive and/or synergistic activities targeting neuroinflammation and cell stress.
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Affiliation(s)
- Christian Griñán‐Ferré
- Department of Pharmacology and Therapeutic ChemistryInstitut de Neurociències‐Universitat de BarcelonaBarcelonaSpain
- Centro de Investigación en Red, Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos IIIMadridSpain
| | - Júlia Jarné‐Ferrer
- Department of Pharmacology and Therapeutic ChemistryInstitut de Neurociències‐Universitat de BarcelonaBarcelonaSpain
| | - Aina Bellver‐Sanchís
- Department of Pharmacology and Therapeutic ChemistryInstitut de Neurociències‐Universitat de BarcelonaBarcelonaSpain
| | - Sandra Codony
- Laboratory of Medicinal Chemistry (CSIC Associated Unit), Faculty of Pharmacy and Food Sciences, Institute of Biomedicine (IBUB)University of Barcelona (UB)BarcelonaSpain
| | - Dolors Puigoriol‐Illamola
- Department of Pharmacology and Therapeutic ChemistryInstitut de Neurociències‐Universitat de BarcelonaBarcelonaSpain
| | - Coral Sanfeliu
- Institut d'Investigacions Biomèdiques de Barcelona (IIBB), Consejo Superior de Investigaciones Científicas (CSIC)BarcelonaSpain
| | - Yumin Oh
- Neuraly Inc.MarylandGaithersburgUSA
| | | | - Santiago Vázquez
- Laboratory of Medicinal Chemistry (CSIC Associated Unit), Faculty of Pharmacy and Food Sciences, Institute of Biomedicine (IBUB)University of Barcelona (UB)BarcelonaSpain
| | - Mercè Pallàs
- Department of Pharmacology and Therapeutic ChemistryInstitut de Neurociències‐Universitat de BarcelonaBarcelonaSpain
- Centro de Investigación en Red, Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos IIIMadridSpain
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Wu Q, Jiang N, Wang Y, Song G, Li P, Fang Y, Xu L, Wang W, Xie M. Soluble epoxide hydrolase inhibitor (TPPU) alleviates ferroptosis by regulating CCL5 after intracerebral hemorrhage in mice. Biomed Pharmacother 2024; 172:116301. [PMID: 38377737 DOI: 10.1016/j.biopha.2024.116301] [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: 12/06/2023] [Revised: 02/16/2024] [Accepted: 02/17/2024] [Indexed: 02/22/2024] Open
Abstract
Soluble epoxide hydrolase (sEH) inhibition has been shown multiple beneficial effects against brain injuries of Intracerebral hemorrhage (ICH). However, the underlying mechanism of its neuroprotective effects after ICH has not been explained fully. Ferroptosis, a new form of iron-dependent programmed cell death, has been shown to be implicated in the secondary injuries after ICH. In this study, We examined whether sEH inhibition can alleviate brain injuries of ICH through inhibiting ferroptosis. Expression of several markers for ferroptosis was observed in the peri-hematomal brain tissues in mice after ICH. lip-1, a ferroptosis inhibitor, alleviated iron accumulation, lipid peroxidation and the secondary damages post-ICH in mice model. Intraperitoneal injection of 1-Trifluoromethoxyphenyl-3- (1-propionylpiperidin-4-yl)urea (TPPU), a highly selective sEH inhibitor, could inhibit ferroptosis and alleviate brain damages in ICH mice. Furthermore, RNA-sequencing was applied to explore the potential regulatory mechanism underlying the effects of TPPU in ferroptosis after ICH. C-C chemokine ligand 5 (CCL5) may be the key factor by which TPPU regulated ferroptosis after ICH since CCL5 antagonist could mimic the effects of TPPU and CCL5 reversed the inhibitive effect of TPPU on ferroptosis and the neuroprotective effects of TPPU on secondary damage after ICH. Taken together, these data indicate that ferroptosis is a key pathological feature of ICH and Soluble epoxide hydrolase inhibitor can exert neuroprotective effect by preventing ferroptosis after ICH.
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Affiliation(s)
- Qiao Wu
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Na Jiang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Yao Wang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Guini Song
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Ping Li
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Yongkang Fang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Li Xu
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Wei Wang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China; Hubei Key Laboratory of Neural Injury and Functional Reconstruction, Huazhong University of Science and Technology, Wuhan 430030, PR China.
| | - Minjie Xie
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China; Hubei Key Laboratory of Neural Injury and Functional Reconstruction, Huazhong University of Science and Technology, Wuhan 430030, PR China.
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6
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Kelly AG, Wang W, Rothenberger E, Yang J, Gilligan MM, Kipper FC, Attaya A, Gartung A, Hwang SH, Gillespie MJ, Bayer RL, Quinlivan KM, Torres KL, Huang S, Mitsiades N, Yang H, Hammock BD, Panigrahy D. Enhancing cancer immunotherapy via inhibition of soluble epoxide hydrolase. Proc Natl Acad Sci U S A 2024; 121:e2314085121. [PMID: 38330013 PMCID: PMC10873624 DOI: 10.1073/pnas.2314085121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 12/22/2023] [Indexed: 02/10/2024] Open
Abstract
Cancer therapy, including immunotherapy, is inherently limited by chronic inflammation-induced tumorigenesis and toxicity within the tumor microenvironment. Thus, stimulating the resolution of inflammation may enhance immunotherapy and improve the toxicity of immune checkpoint inhibition (ICI). As epoxy-fatty acids (EpFAs) are degraded by the enzyme soluble epoxide hydrolase (sEH), the inhibition of sEH increases endogenous EpFA levels to promote the resolution of cancer-associated inflammation. Here, we demonstrate that systemic treatment with ICI induces sEH expression in multiple murine cancer models. Dietary omega-3 polyunsaturated fatty acid supplementation and pharmacologic sEH inhibition, both alone and in combination, significantly enhance anti-tumor activity of ICI in these models. Notably, pharmacological abrogation of the sEH pathway alone or in combination with ICI counter-regulates an ICI-induced pro-inflammatory and pro-tumorigenic cytokine storm. Thus, modulating endogenous EpFA levels through dietary supplementation or sEH inhibition may represent a unique strategy to enhance the anti-tumor activity of paradigm cancer therapies.
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Affiliation(s)
- Abigail G. Kelly
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Weicang Wang
- Department of Entomology and Nematology, University of California, Davis,CA95616
- University of California Davis Comprehensive Cancer Center, Sacramento, CA95817
- Department of Food Science, Purdue University, West Lafayette, IN47907
| | - Eva Rothenberger
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Jun Yang
- Department of Entomology and Nematology, University of California, Davis,CA95616
- University of California Davis Comprehensive Cancer Center, Sacramento, CA95817
| | - Molly M. Gilligan
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Franciele C. Kipper
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Ahmed Attaya
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Allison Gartung
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Sung Hee Hwang
- Department of Entomology and Nematology, University of California, Davis,CA95616
- University of California Davis Comprehensive Cancer Center, Sacramento, CA95817
| | - Michael J. Gillespie
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Rachel L. Bayer
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Katherine M. Quinlivan
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Kimberly L. Torres
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Sui Huang
- Institute of Systems Biology, Seattle, WA98109
| | - Nicholas Mitsiades
- University of California Davis Comprehensive Cancer Center, Sacramento, CA95817
- Department of Internal Medicine, University of CaliforniaDavis,CA95817
| | - Haixia Yang
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Food Nutrition and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing100083, China
| | - Bruce D. Hammock
- Department of Entomology and Nematology, University of California, Davis,CA95616
- University of California Davis Comprehensive Cancer Center, Sacramento, CA95817
| | - Dipak Panigrahy
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
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7
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Pu Y, Cheng R, Zhang Q, Huang T, Lu C, Tang Z, Zhong Y, Wu L, Hammock BD, Hashimoto K, Luo Y, Liu Y. Role of soluble epoxide hydrolase in the abnormal activation of fibroblast-like synoviocytes from patients with rheumatoid arthritis. Clin Immunol 2023; 257:109850. [PMID: 38013165 PMCID: PMC10872286 DOI: 10.1016/j.clim.2023.109850] [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: 07/03/2023] [Revised: 11/09/2023] [Accepted: 11/14/2023] [Indexed: 11/29/2023]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by enigmatic pathogenesis. Polyunsaturated fatty acids (PUFAs) are implicated in RA's development and progression, yet their exact mechanisms of influence are not fully understood. Soluble epoxide hydrolase (sEH) is an enzyme that metabolizes anti-inflammatory epoxy fatty acids (EpFAs), derivatives of PUFAs. In this study, we report elevated sEH expression in the joints of CIA (collagen-induced arthritis) rats, concomitant with diminished levels of two significant EpFAs. Additionally, increased sEH expression was detected in both the synovium of CIA rats and in the synovium and fibroblast-like synoviocytes (FLS) of RA patients. The sEH inhibitor TPPU attenuated the migration and invasion capabilities of FLS derived from RA patients and to reduce the secretion of inflammatory factors by these cells. Our findings indicate a pivotal role for sEH in RA pathogenesis and suggest that sEH inhibitors offer a promising new therapeutic strategy for managing RA.
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Affiliation(s)
- Yaoyu Pu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ruijuan Cheng
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Qiuping Zhang
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Tianwen Huang
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Chenyang Lu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zhigang Tang
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yutong Zhong
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Liang Wu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Bruce D Hammock
- Department of Entomology and Nematology and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, United States of America.
| | - Kenji Hashimoto
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba 260-8670, Japan.
| | - Yubin Luo
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Yi Liu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
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8
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Wei X, Xing Z, Huang T, Zhang M, Song J, Zhao Y. Hyperglycemia disrupted the integrity of the blood-brain barrier following diffuse axonal injury through the sEH/NF-κB pathway. Immun Inflamm Dis 2023; 11:e1105. [PMID: 38156378 PMCID: PMC10698817 DOI: 10.1002/iid3.1105] [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: 04/17/2023] [Revised: 10/16/2023] [Accepted: 11/19/2023] [Indexed: 12/30/2023] Open
Abstract
OBJECTIVES We aimed to investigate the role of soluble epoxide hydrolase for hyperglycemia induced-disruption of blood-brain barrier (BBB) integrity after diffuse axonal injury (DAI). METHODS Rat DAI hyperglycemia model was established by a lateral head rotation device and intraperitoneal injection of 50% glucose. Glial fibrillary acidic protein, ionized calcium-binding adapter molecule-1, β-amyloid precursor protein, neurofilament light chain, and neurofilament heavy chain was detected by immunohistochemistry. Cell apoptosis was examined by terminal deoxynucleotidyl transferase nick-end labeling (TUNEL) assay. The permeability of blood-brain barrier (BBB) was assessed by expression of tight junction proteins, leakage of Evans blue and brain water content. The soluble epoxide hydrolase (sEH) pathway was inhibited by 1-trifluoromethoxyphenyl-3-(1-propionylpiperidin-4-yl) urea (TPPU) and the nuclear transcription factor kappa B (NF-κB) pathway was inhibited by pyrrolidine dithiocarbamate and activated by phorbol-12-myristate-13-acetate in vivo and/or vitro, respectively. The inflammatory factors were detected by enzyme-linked immunosorbent assay. RESULTS Hyperglycemia could exacerbate axonal injury, aggravate cell apoptosis and glial activation, worsen the loss of BBB integrity, increase the release of inflammatory factors, and upregulate the expression of sEH and NF-κB. Inhibition of sEH could reverse all these damages and protect BBB integrity by upregulating the expression of tight junction proteins and downregulating the levels of inflammatory factors in vivo and vitro, while the agonist of NF-κB pathway abrogated the protective effects of TPPU on BBB integrity in vitro. CONCLUSIONS sEH was involved in mediating axonal injury induced by hyperglycemia after DAI by disrupting BBB integrity through inducing inflammation via the NF-κB pathway.
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Affiliation(s)
- Xing Wei
- Department of Gynaecology and ObstetricsThe Second Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Zhiguo Xing
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Tingqin Huang
- Department of NeurosurgeryThe Second Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Ming Zhang
- Department of NeurosurgeryThe Second Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Jinning Song
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Yonglin Zhao
- Department of OncologyThe Second Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
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9
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Wu Y, Hu Q, Wang X, Cheng H, Yu J, Li Y, Luo J, Zhang Q, Wu J, Zhang G. Pterostilbene attenuates microglial inflammation and brain injury after intracerebral hemorrhage in an OPA1-dependent manner. Front Immunol 2023; 14:1172334. [PMID: 37614235 PMCID: PMC10442819 DOI: 10.3389/fimmu.2023.1172334] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 07/21/2023] [Indexed: 08/25/2023] Open
Abstract
Microglial activation and subsequent inflammatory responses are critical processes in aggravating secondary brain injury after intracerebral hemorrhage (ICH). Pterostilbene (3', 5'-dimethoxy-resveratrol) features antioxidant and anti-inflammation properties and has been proven neuroprotective. In this study, we aimed to explore whether Pterostilbene could attenuate neuroinflammation after experimental ICH, as well as underlying molecular mechanisms. Here, a collagenase-induced ICH in mice was followed by intraperitoneal injection of Pterostilbene (10 mg/kg) or vehicle once daily. PTE-treated mice performed significantly better than vehicle-treated controls in the neurological behavior test after ICH. Furthermore, our results showed that Pterostilbene reduced lesion volume and neural apoptosis, and alleviated blood-brain barrier (BBB) damage and brain edema. RNA sequencing and subsequent experiments showed that ICH-induced neuroinflammation and microglial proinflammatory activities were markedly suppressed by Pterostilbene treatment. With regard to the mechanisms, we identified that the anti-inflammatory effects of Pterostilbene relied on remodeling mitochondrial dynamics in microglia. Concretely, Pterostilbene reversed the downregulation of OPA1, promoted mitochondrial fusion, restored normal mitochondrial morphology, and reduced mitochondrial fragmentation and superoxide in microglia after OxyHb treatment. Moreover, conditionally deleting microglial OPA1 in mice largely countered the effects of Pterostilbene on alleviating microglial inflammation, BBB damage, brain edema and neurological impairment following ICH. In summary, we provided the first evidence that Pterostilbene is a promising agent for alleviating neuroinflammation and brain injury after ICH in mice, and uncovered a novel regulatory relationship between Pterostilbene and OPA1-mediated mitochondrial fusion.
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Affiliation(s)
- Yang Wu
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qing Hu
- Department of Neurosurgery, Tangdu Hospital, Air Force Medical University, Xi’an, Shaanxi, China
| | - Xiaoliang Wang
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Hongbo Cheng
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jiegang Yu
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yang Li
- Department of Neurosurgery, The General Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jianing Luo
- Department of Neurosurgery, West Theater General Hospital, Chengdu, Sichuan, China
| | - Qingjiu Zhang
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jianliang Wu
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Gengshen Zhang
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
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10
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Liu J, Cao C, Jin Y, Wang Y, Ma X, Li J, Guo S, Yang J, Niu J, Liang X. Induced neural stem cells suppressed neuroinflammation by inhibiting the microglial pyroptotic pathway in intracerebral hemorrhage rats. iScience 2023; 26:107022. [PMID: 37360683 PMCID: PMC10285565 DOI: 10.1016/j.isci.2023.107022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/10/2023] [Accepted: 05/30/2023] [Indexed: 06/28/2023] Open
Abstract
Intracerebral hemorrhage usually manifests as strong neuroinflammation and neurological deficits. There is an urgent need to explore effective methods for the treatment of intracerebral hemorrhage. The therapeutic effect and the possible mechanism of induced neural stem cell transplantation in an intracerebral hemorrhage rat model are still unclear. Our results showed that transplantation of induced neural stem cells could improve neurological deficits by inhibiting inflammation in an intracerebral hemorrhage rat model. Additionally, induced neural stem cell treatment could effectively suppress microglial pyroptosis, which might occur through inhibiting the NF-κB signaling pathway. Induced neural stem cells could also regulate the polarization of microglia and promote the transition of microglia from pro-inflammatory phenotypes to anti-inflammatory phenotypes to exert their anti-inflammatory effects. Overall, induced neural stem cells may be a promising tool for the treatment of intracerebral hemorrhage and other neuroinflammatory diseases.
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Affiliation(s)
- Jiaxin Liu
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Chuanshang Cao
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Yiran Jin
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Yan Wang
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Xiaona Ma
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Jiahui Li
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Songlin Guo
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Jiancheng Yang
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
| | - Jianguo Niu
- Ningxia Key Laboratory of Cerebrocranial Diseases, Ningxia Medical University, 750004 Yinchuan, China
| | - Xueyun Liang
- Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, 750001 Yinchuan, China
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11
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Dai Y, Dong J, Wu Y, Zhu M, Xiong W, Li H, Zhao Y, Hammock BD, Zhu X. Enhancement of the liver's neuroprotective role ameliorates traumatic brain injury pathology. Proc Natl Acad Sci U S A 2023; 120:e2301360120. [PMID: 37339206 PMCID: PMC10293829 DOI: 10.1073/pnas.2301360120] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 05/19/2023] [Indexed: 06/22/2023] Open
Abstract
Traumatic brain injury (TBI) is a pervasive problem worldwide for which no effective treatment is currently available. Although most studies have focused on the pathology of the injured brain, we have noted that the liver plays an important role in TBI. Using two mouse models of TBI, we found that the enzymatic activity of hepatic soluble epoxide hydrolase (sEH) was rapidly decreased and then returned to normal levels following TBI, whereas such changes were not observed in the kidney, heart, spleen, or lung. Interestingly, genetic downregulation of hepatic Ephx2 (which encodes sEH) ameliorates TBI-induced neurological deficits and promotes neurological function recovery, whereas overexpression of hepatic sEH exacerbates TBI-associated neurological impairments. Furthermore, hepatic sEH ablation was found to promote the generation of A2 phenotype astrocytes and facilitate the production of various neuroprotective factors associated with astrocytes following TBI. We also observed an inverted V-shaped alteration in the plasma levels of four EET (epoxyeicosatrienoic acid) isoforms (5,6-, 8,9-,11,12-, and 14,15-EET) following TBI which were negatively correlated with hepatic sEH activity. However, hepatic sEH manipulation bidirectionally regulates the plasma levels of 14,15-EET, which rapidly crosses the blood-brain barrier. Additionally, we found that the application of 14,15-EET mimicked the neuroprotective effect of hepatic sEH ablation, while 14,15-epoxyeicosa-5(Z)-enoic acid blocked this effect, indicating that the increased plasma levels of 14,15-EET mediated the neuroprotective effect observed after hepatic sEH ablation. These results highlight the neuroprotective role of the liver in TBI and suggest that targeting hepatic EET signaling could represent a promising therapeutic strategy for treating TBI.
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Affiliation(s)
- Yongfeng Dai
- School of Basic Medical Science, Southern Medical University, Guangzhou510515, China
- Research Center for Brain Health, Pazhou Lab, Guangzhou510330, China
| | - Jinghua Dong
- School of Basic Medical Science, Southern Medical University, Guangzhou510515, China
- Research Center for Brain Health, Pazhou Lab, Guangzhou510330, China
| | - Yu Wu
- Research Center for Brain Health, Pazhou Lab, Guangzhou510330, China
- School of Psychology, Shenzhen University, Shenzhen518060, China
| | - Minzhen Zhu
- Research Center for Brain Health, Pazhou Lab, Guangzhou510330, China
| | - Wenchao Xiong
- School of Basic Medical Science, Southern Medical University, Guangzhou510515, China
| | - Huanyu Li
- Research Center for Brain Health, Pazhou Lab, Guangzhou510330, China
| | - Yulu Zhao
- School of Basic Medical Science, Southern Medical University, Guangzhou510515, China
- Research Center for Brain Health, Pazhou Lab, Guangzhou510330, China
| | - Bruce D. Hammock
- Department of Entomology and Nematology, University of California, Davis, CA95616
- University of California Davis Comprehensive Cancer Center, University of California, Davis, CA95616
| | - Xinhong Zhu
- School of Basic Medical Science, Southern Medical University, Guangzhou510515, China
- Research Center for Brain Health, Pazhou Lab, Guangzhou510330, China
- School of Psychology, Shenzhen University, Shenzhen518060, China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou510006, China
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12
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Yao D, Zhang R, Xie M, Ding F, Wang M, Wang W. Updated Understanding of the Glial-Vascular Unit in Central Nervous System Disorders. Neurosci Bull 2023; 39:503-518. [PMID: 36374471 PMCID: PMC10043098 DOI: 10.1007/s12264-022-00977-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 09/04/2022] [Indexed: 11/16/2022] Open
Abstract
The concept of the glial-vascular unit (GVU) was raised recently to emphasize the close associations between brain cells and cerebral vessels, and their coordinated reactions to diverse neurological insults from a "glio-centric" view. GVU is a multicellular structure composed of glial cells, perivascular cells, and perivascular space. Each component is closely linked, collectively forming the GVU. The central roles of glial and perivascular cells and their multi-level interconnections in the GVU under normal conditions and in central nervous system (CNS) disorders have not been elucidated in detail. Here, we comprehensively review the intensive interactions between glial cells and perivascular cells in the niche of perivascular space, which take part in the modulation of cerebral blood flow and angiogenesis, formation of the blood-brain barrier, and clearance of neurotoxic wastes. Next, we discuss dysfunctions of the GVU in various neurological diseases, including ischemic stroke, spinal cord injury, Alzheimer's disease, and major depression disorder. In addition, we highlight the possible therapies targeting the GVU, which may have potential clinical applications.
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Affiliation(s)
- Di Yao
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ruoying Zhang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Minjie Xie
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Fengfei Ding
- Department of Pharmacology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Minghuan Wang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wei Wang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- Key Laboratory of Neurological Diseases of the Chinese Ministry of Education, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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13
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Norman JE, Nuthikattu S, Milenkovic D, Rutledge JC, Villablanca AC. Sex-Specific Response of the Brain Free Oxylipin Profile to Soluble Epoxide Hydrolase Inhibition. Nutrients 2023; 15:1214. [PMID: 36904213 PMCID: PMC10005333 DOI: 10.3390/nu15051214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/22/2023] [Accepted: 02/25/2023] [Indexed: 03/04/2023] Open
Abstract
Oxylipins are the oxidation products of polyunsaturated fatty acids and have been implicated in neurodegenerative disorders, including dementia. Soluble epoxide hydrolase (sEH) converts epoxy-fatty acids to their corresponding diols, is found in the brain, and its inhibition is a treatment target for dementia. In this study, male and female C57Bl/6J mice were treated with an sEH inhibitor (sEHI), trans-4-[4-(3-adamantan-1-yl-ureido)-cyclohexyloxy]-benzoic acid (t-AUCB), for 12 weeks to comprehensively study the effect of sEH inhibition on the brain oxylipin profile, and modulation by sex. Ultra-high-performance liquid chromatography-tandem mass spectrometry was used to measure the profile of 53 free oxylipins in the brain. More oxylipins were modified by the inhibitor in males than in females (19 versus 3, respectively) and favored a more neuroprotective profile. Most were downstream of lipoxygenase and cytochrome p450 in males, and cyclooxygenase and lipoxygenase in females. The inhibitor-associated oxylipin changes were unrelated to serum insulin, glucose, cholesterol, or female estrous cycle. The inhibitor affected behavior and cognitive function as measured by open field and Y-maze tests in males, but not females. These findings are novel and important to our understanding of sexual dimorphism in the brain's response to sEHI and may help inform sex-specific treatment targets.
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Affiliation(s)
- Jennifer E. Norman
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California, Davis, CA 95616, USA
| | - Saivageethi Nuthikattu
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California, Davis, CA 95616, USA
| | - Dragan Milenkovic
- Department of Nutrition, University of California, Davis, CA 95616, USA
| | - John C. Rutledge
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California, Davis, CA 95616, USA
| | - Amparo C. Villablanca
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California, Davis, CA 95616, USA
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14
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Dang H, Chen W, Chen L, Huo X, Wang F. TPPU inhibits inflammation-induced excessive autophagy to restore the osteogenic differentiation potential of stem cells and improves alveolar ridge preservation. Sci Rep 2023; 13:1574. [PMID: 36709403 PMCID: PMC9884285 DOI: 10.1038/s41598-023-28710-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 01/23/2023] [Indexed: 01/30/2023] Open
Abstract
Inflammation-induced autophagy is a double-edged sword. Dysfunction of autophagy impairs the differentiation capacity of mesenchymal stem cells and enhances inflammation-induced bone loss. Tooth extraction with periodontal and/or endodontic lesions exacerbates horizontal and vertical resorption of alveolar bone during the healing period. Alveolar socket preservation (ASP) procedure following tooth extraction has important clinical implications for future prosthodontic treatments. Studies have shown that epoxyeicosatrienoic acids (EETs) have significant anti-inflammatory effects and participate in autophagy. However, whether EETs can minimize alveolar bone resorption and contribute to ASP by regulating autophagy levels under inflammatory conditions remain elusive. Here, we figured out that LPS-induced inflammatory conditions increased the inflammatory cytokine and inhibited osteogenic differentiation of human dental pulp stem cells (hDPSCs), and led to excessive autophagy of hDPSCs. Moreover, we identified that increased EETs levels using TPPU, a soluble epoxide hydrolase inhibitor, reversed these negative outcomes. We further demonstrated the potential of TPPU to promote early healing of extraction sockets and ASP, and speculated that it was related to autophagy. Taken together, these results suggest that targeting inhibition of soluble epoxide hydrolase using TPPU plays a protective role in the differentiation and autophagy of mesenchymal stem cells and provides potential feasibility for applying TPPU for ASP, especially under inflammatory conditions.
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Affiliation(s)
- Haixia Dang
- The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China.,School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian, 116044, China
| | - Weixian Chen
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian, 116044, China.,Academician Laboratory of Immune and Oral Development and Regeneration, Dalian Medical University, Dalian, 116044, China
| | - Lan Chen
- The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
| | - Xinru Huo
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian, 116044, China
| | - Fu Wang
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian, 116044, China. .,Academician Laboratory of Immune and Oral Development and Regeneration, Dalian Medical University, Dalian, 116044, China. .,The Affiliated Stomatological Hospital of Dalian Medical University School of Stomatology, Dalian, 116086, China.
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15
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Gao L, Chen W, Li L, Li J, Kongling W, Zhang Y, Yang X, Zhao Y, Bai J, Wang F. Targeting soluble epoxide hydrolase promotes osteogenic-angiogenic coupling via activating SLIT3/HIF-1α signalling pathway. Cell Prolif 2023:e13403. [PMID: 36636821 DOI: 10.1111/cpr.13403] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/03/2023] [Accepted: 01/05/2023] [Indexed: 01/14/2023] Open
Abstract
Type H vessels have recently been identified to modulate osteogenesis. Epoxyeicostrioleic acids (EETs) have an essential contribution to vascular homeostasis. However, whether increased EETs with soluble epoxide hydrolase (sEH) inhibitor TPPU enhance the coupling of angiogenesis and osteogenesis remains largely unknown. The effects of TPPU on cross-talk between co-cultured human umbilical vein endothelial cells (HUVECs) and human dental pulp stem cells (hDPSCs), and on long bone growth and calvarial defect repair in mice were investigated in vitro and in vivo. TPPU enhanced osteogenic differentiation of co-cultured HUVECs and hDPSCs in vitro and increased type H vessels, and long bone growth and bone repair of calvarial defect. Mechanistically, TPPU promoted cell proliferation and angiogenesis, reclined cell apoptosis, and significantly increased CD31hi EMCNhi endothelial cells (ECs) and SLIT3 and HIF-1α expression levels in co-cultured HUVECs and hDPSCs. Knockdown of Slit3 in hDPSCs or Hif-1α in HUVECs impaired the formation of CD31hi EMCNhi ECs and reversed TPPU-induced osteogenesis. We defined a previously unidentified effect of TPPU coupling angiogenesis and osteogenesis. TPPU induced type H vessels by upregulating the expression of hDPSCs-derived SLIT3, which resulted in the activation of ROBO1/YAP1/HIF-1α signalling pathway in ECs. Targeting metabolic pathways of EETs represents a new strategy to couple osteogenesis and angiogenesis, sEH is a promising therapeutic target for bone regeneration and repair.
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Affiliation(s)
- Lu Gao
- School of Stomatology, Dalian Medical University, Dalian, China.,Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China.,The Affiliated Stomatological Hospital of Dalian Medical University School of Stomatology, Dalian, China
| | - Weixian Chen
- School of Stomatology, Dalian Medical University, Dalian, China.,Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China
| | - Lijun Li
- School of Stomatology, Dalian Medical University, Dalian, China.,Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China
| | - Juanjuan Li
- School of Stomatology, Dalian Medical University, Dalian, China.,Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China
| | - Wenyao Kongling
- School of Stomatology, Dalian Medical University, Dalian, China.,Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China
| | - Yaoyang Zhang
- School of Stomatology, Dalian Medical University, Dalian, China.,The Affiliated Stomatological Hospital of Dalian Medical University School of Stomatology, Dalian, China
| | - Xueping Yang
- School of Stomatology, Dalian Medical University, Dalian, China.,Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China
| | - Yanrong Zhao
- School of Stomatology, Dalian Medical University, Dalian, China.,Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China
| | - Jie Bai
- School of Stomatology, Dalian Medical University, Dalian, China.,Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China
| | - Fu Wang
- School of Stomatology, Dalian Medical University, Dalian, China.,Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China.,The Affiliated Stomatological Hospital of Dalian Medical University School of Stomatology, Dalian, China
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16
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Li R, Zhao M, Yao D, Zhou X, Lenahan C, Wang L, Ou Y, He Y. The role of the astrocyte in subarachnoid hemorrhage and its therapeutic implications. Front Immunol 2022; 13:1008795. [PMID: 36248855 PMCID: PMC9556431 DOI: 10.3389/fimmu.2022.1008795] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/12/2022] [Indexed: 11/18/2022] Open
Abstract
Subarachnoid hemorrhage (SAH) is an important public health concern with high morbidity and mortality worldwide. SAH induces cell death, blood−brain barrier (BBB) damage, brain edema and oxidative stress. As the most abundant cell type in the central nervous system, astrocytes play an essential role in brain damage and recovery following SAH. This review describes astrocyte activation and polarization after SAH. Astrocytes mediate BBB disruption, glymphatic–lymphatic system dysfunction, oxidative stress, and cell death after SAH. Furthermore, astrocytes engage in abundant crosstalk with other brain cells, such as endothelial cells, neurons, pericytes, microglia and monocytes, after SAH. In addition, astrocytes also exert protective functions in SAH. Finally, we summarize evidence regarding therapeutic approaches aimed at modulating astrocyte function following SAH, which could provide some new leads for future translational therapy to alleviate damage after SAH.
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Affiliation(s)
- Rong Li
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Min Zhao
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Di Yao
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiangyue Zhou
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cameron Lenahan
- Department of Biomedical Sciences, Burrell College of Osteopathic Medicine, Las Cruces, NM, United States
| | - Ling Wang
- Department of Operating room, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yibo Ou
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yue He
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Yue He,
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