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Bu Y, Yang S, Wang D, Hu S, Zhang Q, Wu Z, Yang C. Role of soluble epoxide hydrolase in pain and depression comorbidity. Neurobiol Dis 2024; 193:106443. [PMID: 38395315 DOI: 10.1016/j.nbd.2024.106443] [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: 09/18/2023] [Revised: 02/15/2024] [Accepted: 02/19/2024] [Indexed: 02/25/2024] Open
Abstract
The coexistence of chronic pain and depression in clinical practice places a substantial social burden and profoundly impacts in patients. Although a clear correlation exists, the underlying mechanism of comorbidity between chronic pain and depression remains elusive. Research conducted in recent decades has uncovered that soluble epoxide hydrolase, a pivotal enzyme in the metabolism of polyunsaturated fatty acids, plays a crucial role in inflammation. Interestingly, this enzyme is intricately linked to the development of both pain and depression. With this understanding, this review aims to summarize the roles of soluble epoxide hydrolase in pain, depression, and their comorbidity. Simultaneously, we will also explore the underlying mechanisms, providing guidance for future research and drug development.
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Affiliation(s)
- Yuchen Bu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Siqi Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Di Wang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Suwan Hu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Qi Zhang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Zifeng Wu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| | - Chun Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
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Kong L, Li J, Bai Y, Xu S, Zhang L, Chen W, Gao L, Wang F. Inhibition of soluble epoxide hydrolase enhances the dentin-pulp complex regeneration mediated by crosstalk between vascular endothelial cells and dental pulp stem cells. J Transl Med 2024; 22:61. [PMID: 38229161 DOI: 10.1186/s12967-024-04863-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: 07/20/2023] [Accepted: 01/06/2024] [Indexed: 01/18/2024] Open
Abstract
BACKGROUND Revascularization and restoration of normal pulp-dentin complex are important for tissue-engineered pulp regeneration. Recently, a unique periodontal tip-like endothelial cells subtype (POTCs) specialized to dentinogenesis was identified. We have confirmed that TPPU, a soluble epoxide hydrolase (sEH) inhibitor targeting epoxyeicosatrienoic acids (EETs) metabolism, promotes bone growth and regeneration by angiogenesis and osteogenesis coupling. We hypothesized that TPPU could also promote revascularization and induce POTCs to contribute to pulp-dentin complex regeneration. Here, we in vitro and in vivo characterized the potential effect of TPPU on the coupling of angiogenesis and odontogenesis and investigated the relevant mechanism, providing new ideas for pulp-dentin regeneration by targeting sEH. METHODS In vitro effects of TPPU on the proliferation, migration, and angiogenesis of dental pulp stem cells (DPSCs), human umbilical vein endothelial cells (HUVECs) and cocultured DPSCs and HUVECs were detected using cell counting kit 8 (CCK8) assay, wound healing, transwell, tube formation and RT-qPCR. In vivo, Matrigel plug assay was performed to outline the roles of TPPU in revascularization and survival of grafts. Then we characterized the VEGFR2 + POTCs around odontoblast layer in the molar of pups from C57BL/6 female mice gavaged with TPPU. Finally, the root segments with DPSCs mixed with Matrigel were implanted subcutaneously in BALB/c nude mice treated with TPPU and the root grafts were isolated for histological staining. RESULTS In vitro, TPPU significantly promoted the migration and tube formation capability of cocultured DPSCs and HUVECs. ALP and ARS staining and RT-qPCR showed that TPPU promoted the osteogenic and odontogenic differentiation of cultured cells, treatment with an anti-TGF-β blocking antibody abrogated this effect. Knockdown of HIF-1α in HUVECs significantly reversed the effect of TPPU on the expression of angiogenesis, osteogenesis and odontogenesis-related genes in cocultured cells. Matrigel plug assay showed that TPPU increased VEGF/VEGFR2-expressed cells in transplanted grafts. TPPU contributed to angiogenic-odontogenic coupling featured by increased VEGFR2 + POTCs and odontoblast maturation during early dentinogenesis in molar of newborn pups from C57BL/6 female mice gavaged with TPPU. TPPU induced more dental pulp-like tissue with more vessels and collagen fibers in transplanted root segment. CONCLUSIONS TPPU promotes revascularization of dental pulp regeneration by enhancing migration and angiogenesis of HUVECs, and improves odontogenic differentiation of DPSCs by TGF-β. TPPU boosts the angiogenic-odontogenic coupling by enhancing VEGFR2 + POTCs meditated odontoblast maturation partly via upregulating HIF-1α, which contributes to increasing pulp-dentin complex for tissue-engineered pulp regeneration.
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Affiliation(s)
- Lingwenyao Kong
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian, 116044, People's Republic of China
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China
| | - Juanjuan Li
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian, 116044, People's Republic of China
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China
| | - Yuwen Bai
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian, 116044, People's Republic of China
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China
| | - Shaoyang Xu
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian, 116044, People's Republic of China
| | - Lin Zhang
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian, 116044, People's Republic of China
| | - Weixian Chen
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian, 116044, People's Republic of China
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China
| | - Lu Gao
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian, 116044, People's Republic of China.
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China.
- The Affiliated Stomatological Hospital of Dalian Medical University, Dalian, China.
| | - Fu Wang
- School of Stomatology, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian, 116044, People's Republic of China.
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, China.
- The Affiliated Stomatological Hospital of Dalian Medical University, Dalian, China.
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Duan L, Song L, Qiu C, Li J. Effect of the sEH inhibitor AUDA on arachidonic acid metabolism and NF-κB signaling of rats with postpartum depression-like behavior. J Neuroimmunol 2023; 385:578250. [PMID: 38029646 DOI: 10.1016/j.jneuroim.2023.578250] [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: 09/11/2023] [Revised: 11/16/2023] [Accepted: 11/19/2023] [Indexed: 12/01/2023]
Abstract
OBJECTIVE To investigate whether sEH inhibitor AUDA can mitigate postpartum depression (PPD)-like symptoms in the rat model and regulate the AA/NF-κB pathway to suppress the inflammatory response in the prefrontal lobes of PPD rats. METHODS Five groups of Sprague Dawley rats were used: normal, sham operated, PPD model, AUDA, and paroxetine hydrochloride. During the 21-day treatment period, animals in all groups underwent assessments (open field test, forced swimming test, and sucrose consumption) for depression-like behavior. At the conclusion of the treatment period, animals in all study groups were euthanized and various proteins in the prefrontal lobes were measured. RESULTS Depression-like behavior in rats was attenuated by AUDA. In the prefrontal lobes of PPD rats, levels of 5-LOX, COX-2, sEH, IL-1β, IL- 6, p65, p-p65, P-IκBα, NF-κB p65, and GFAP were increased while levels of epoxyeicosatrienoic acids and 5-HT were decreased. AUDA reversed these changes, thus having a similar effect as the classic antidepressant paroxetine hydrochloride. CONCLUSION AUDA may constrain AA/NF-κB in the prefrontal cortex of PPD rats, thus inhibiting the inflammatory response and ultimately attenuating postpartum depression-like behavior.
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Affiliation(s)
- Liqin Duan
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), 54 Youdian Road, Hangzhou, Zhejiang Province, PR China
| | - Linhong Song
- Affiliated Qingdao Central Hospital, Qingdao University, Qingdao, Shandong Province, PR China
| | - Chao Qiu
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), 54 Youdian Road, Hangzhou, Zhejiang Province, PR China
| | - Jingya Li
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), 54 Youdian Road, Hangzhou, Zhejiang Province, PR China.
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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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