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Xie YX, Yao H, Peng JF, Ni D, Liu WT, Li CQ, Yi GH. Insight into modulators of sphingosine-1-phosphate receptor and implications for cardiovascular therapeutics. J Drug Target 2024; 32:300-310. [PMID: 38269855 DOI: 10.1080/1061186x.2024.2309577] [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: 04/26/2023] [Accepted: 10/21/2023] [Indexed: 01/26/2024]
Abstract
Cardiovascular disease is the leading cause of death worldwide, and it's of great importance to understand its underlying mechanisms and find new treatments. Sphingosine 1-phosphate (S1P) is an active lipid that exerts its effects through S1P receptors on the cell surface or intracellular signal, and regulates many cellular processes such as cell growth, cell proliferation, cell migration, cell survival, and so on. S1PR modulators are a class of modulators that can interact with S1PR subtypes to activate receptors or block their activity, exerting either agonist or functional antagonist effects. Many studies have shown that S1P plays a protective role in the cardiovascular system and regulates cardiac physiological functions mainly through interaction with cell surface S1P receptors (S1PRs). Therefore, S1PR modulators may play a therapeutic role in cardiovascular diseases. Here, we review five S1PRs and their functions and the progress of S1PR modulators. In addition, we focus on the effects of S1PR modulators on atherosclerosis, myocardial infarction, myocardial ischaemia/reperfusion injury, diabetic cardiovascular diseases, and myocarditis, which may provide valuable insights into potential therapeutic strategies for cardiovascular disease.
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Affiliation(s)
- Yu-Xin Xie
- Hunan province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, Hunan, China
- Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan, China
| | - Hui Yao
- Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan, China
| | - Jin-Fu Peng
- Hunan province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, Hunan, China
- Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan, China
| | - Dan Ni
- Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan, China
| | - Wan-Ting Liu
- Hunan province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, Hunan, China
- Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan, China
| | - Chao-Quan Li
- Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan, China
| | - Guang-Hui Yi
- Hunan province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, Hunan, China
- Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan, China
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Yu Z, Zhang H, Li L, Li Z, Chen D, Pang X, Ji Y, Wang Y. Microglia-mediated pericytes migration and fibroblast transition via S1P/S1P3/YAP signaling pathway after spinal cord injury. Exp Neurol 2024; 379:114864. [PMID: 38866101 DOI: 10.1016/j.expneurol.2024.114864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 06/04/2024] [Accepted: 06/09/2024] [Indexed: 06/14/2024]
Abstract
Platelet-derived growth factor receptor β positive (PDGFRβ+) pericytes detach from the microvascular wall and migrate into the injury center following spinal cord injury (SCI), which has been widely regarded as the main source of fibrotic scar, but the mechanism of migration and fibroblast transition remains elusive. Here we show the associated spatiotemporal distribution between microglia and pericytes at three and seven days post-injury (dpi). The increased expression of Sphingosine kinase-1 (SPHK1) in microglia significantly raised the concentration of Sphingosine-1-phosphate (S1P) in the spinal cord, which promotes migration and fibroblast transition of pericyte. In vitro experiments, we found the elevated Sphingosine 1-phosphate receptor 3 (S1P3), the S1P/S1PR3 axis inhibited the phosphorylation of YAP and promoted its nuclear translocation, which contributed to the formation of alpha-smooth muscle actin (α-SMA) and collagen type I (COL1) protein, This process can be blocked by an S1P3 specific inhibitor TY52156 in vitro. The S1P/S1P3/YAP pathway might be a potential target for treatment in SCI.
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Affiliation(s)
- Ziyuan Yu
- Guangzhou Med Univ, Inst Neurosci, Dept Neurosurg, Affiliated Hosp 2, Guangzhou 510260, PR China
| | - Huabin Zhang
- Guangzhou Med Univ, Inst Neurosci, Dept Neurosurg, Affiliated Hosp 2, Guangzhou 510260, PR China
| | - Linxi Li
- Guangzhou Med Univ, Inst Neurosci, Dept Neurosurg, Affiliated Hosp 2, Guangzhou 510260, PR China
| | - Zhi Li
- Guangzhou Med Univ, Inst Neurosci, Dept Neurosurg, Affiliated Hosp 2, Guangzhou 510260, PR China
| | - Danmin Chen
- Guangzhou Med Univ, Inst Neurosci, Dept Neurosurg, Affiliated Hosp 2, Guangzhou 510260, PR China
| | - Xiao Pang
- Guangzhou Med Univ, Inst Neurosci, Dept Neurosurg, Affiliated Hosp 2, Guangzhou 510260, PR China
| | - Yunxiang Ji
- Guangzhou Med Univ, Inst Neurosci, Dept Neurosurg, Affiliated Hosp 2, Guangzhou 510260, PR China
| | - Yezhong Wang
- Guangzhou Med Univ, Inst Neurosci, Dept Neurosurg, Affiliated Hosp 2, Guangzhou 510260, PR China.
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Rushendran R, Singh A, Ankul Singh S, Chitra V, Ilango K. A role of NLRP3 and MMP9 in migraine progression: a systematic review of translational study. Front Neurol 2024; 15:1307319. [PMID: 38836002 PMCID: PMC11148868 DOI: 10.3389/fneur.2024.1307319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 04/24/2024] [Indexed: 06/06/2024] Open
Abstract
Background Migraines affect one billion individuals globally, with a higher occurrence among young adults and women. A significant survey in the United States indicated that 17.1% of women and 5.6% of men suffer from migraines. This study seeks to investigate the potential connection between NLRP3 and MMP9 in migraine pathology. Methods The research involved searching databases such as PubMed, Scopus, Science Direct, Google Scholar, and Proquest, with the search concluding on March 31, 2024. Following PRISMA guidelines, PICO data were collected, focusing exclusively on animal models induced by Nitroglycerine (10 mg/kg), while excluding clinical studies. Results The study, originally registered in Prospero Reg. No. CRD42022355893, conducted bias analysis using SYRCLE's RoB tool and evaluated author consensus using GraphPad v9.5.1. Out of 7,359 search results, 22 papers met the inclusion criteria. Inter-rater reliability among reviewers was assessed using Cohen's kappa statistics. Conclusion This review summarizes 22 preclinical studies on Nitroglycerin (NTG), NLRP3, MMP9, and related biomarkers in migraine. They reveal that NTG, especially at 10 mg/kg, consistently induces migraine-like symptoms in rodents by activating NLRP3 inflammasome and stimulating proinflammatory molecule production. Systematic Review Registration https://www.crd.york.ac.uk/prospero/, CRD42022355893.
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Affiliation(s)
- Rapuru Rushendran
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Chennai, India
| | - Anuragh Singh
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Chennai, India
| | - S Ankul Singh
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Chennai, India
| | - Vellapandian Chitra
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Chennai, India
| | - Kaliappan Ilango
- Department of Pharmaceutical Chemistry, Tagore College of Pharmacy, Chennai, India
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Lin T, Peng M, Zhu Q, Pan X. S1PR2 participates in intestinal injury in severe acute pancreatitis by regulating macrophage pyroptosis. Front Immunol 2024; 15:1405622. [PMID: 38827741 PMCID: PMC11140028 DOI: 10.3389/fimmu.2024.1405622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 04/26/2024] [Indexed: 06/04/2024] Open
Abstract
Background Severe acute pancreatitis (SAP) is an inflammatory disorder affecting the gastrointestinal system. Intestinal injury plays an important role in the treatment of severe acute pancreatitis. In this study, we mainly investigated the role of S1PR2 in regulating macrophage pyroptosis in the intestinal injury of severe acute pancreatitis. Methods The SAP model was constructed using cerulein and lipopolysaccharide, and the expression of S1PR2 was inhibited by JTE-013 to detect the degree of pancreatitis and intestinal tissue damage in mice. Meanwhile, the level of pyroptosis-related protein was detected by western blot, the level of related mRNA was detected by PCR, and the level of serum inflammatory factors was detected by ELISA. In vitro experiments, LPS+ATP was used to construct the pyroptosis model of THP-1. After knockdown and overexpression of S1PR2, the pyroptosis proteins level was detected by western blot, the related mRNA level was detected by PCR, and the level of cell supernatant inflammatory factors were detected by ELISA. A rescue experiment was used to verify the sufficient necessity of the RhoA/ROCK pathway in S1PR2-induced pyroptosis. Meanwhile, THP-1 and FHC were co-cultured to verify that cytokines released by THP-1 after damage could regulate FHC damage. Results Our results demonstrated that JTE-013 effectively attenuated intestinal injury and inflammation in mice with SAP. Furthermore, we observed a significant reduction in the expression of pyroptosis-related proteins within the intestinal tissue of SAP mice upon treatment with JTE-013. We confirmed the involvement of S1PR2 in THP-1 cell pyroptosis in vitro. Specifically, activation of S1PR2 triggered pyroptosis in THP-1 cells through the RhoA/ROCK signaling pathway. Moreover, it was observed that inflammatory factors released during THP-1 cell pyroptosis exerted an impact on cohesin expression in FHC cells. Conclusion The involvement of S1PR2 in SAP-induced intestinal mucosal injury may be attributed to its regulation of macrophage pyroptosis.
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Affiliation(s)
| | | | | | - Xinting Pan
- Emergency Intensive Care Unit, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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Zheng YS, Liu YL, Xu ZG, He C, Guo ZY. Is myeloid-derived growth factor a ligand of the sphingosine-1-phosphate receptor 2? Biochem Biophys Res Commun 2024; 706:149766. [PMID: 38484568 DOI: 10.1016/j.bbrc.2024.149766] [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: 02/25/2024] [Accepted: 03/08/2024] [Indexed: 03/24/2024]
Abstract
Secretory myeloid-derived growth factor (MYDGF) exerts beneficial effects on organ repair, probably via a plasma membrane receptor; however, the identity of the expected receptor has remained elusive. In a recent study, MYDGF was reported as an agonist of the sphingosine-1-phosphate receptor 2 (S1PR2), an A-class G protein-coupled receptor that mediates the functions of the signaling lipid, sphingosine-1-phosphate (S1P). In the present study, we conducted living cell-based functional assays to test whether S1PR2 is a receptor for MYDGF. In the NanoLuc Binary Technology (NanoBiT)-based β-arrestin recruitment assay and the cAMP-response element (CRE)-controlled NanoLuc reporter assay, S1P could efficiently activate human S1PR2 overexpressed in human embryonic kidney (HEK) 293T cells; however, recombinant human MYDGF, overexpressed either from Escherichia coli or HEK293 cells, had no detectable effect. Thus, the results demonstrated that human MYDGF is not a ligand of human S1PR2. Considering the high conservation of MYDGF and S1PR2 in evolution, MYDGF is also probably not a ligand of S1PR2 in other vertebrates.
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Affiliation(s)
- Yong-Shan Zheng
- Research Center for Translational Medicine at East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China; Shanghai Institute of Biological Products Co., Ltd., Shanghai, China
| | - Ya-Li Liu
- Research Center for Translational Medicine at East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Zeng-Guang Xu
- Research Center for Translational Medicine at East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Cheng He
- Shanghai Institute of Biological Products Co., Ltd., Shanghai, China.
| | - Zhan-Yun Guo
- Research Center for Translational Medicine at East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China.
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Yao X, Liu Y, Mao M, Yang L, Zhan Q, Xiao J. Calorie restriction mimetic, resveratrol, attenuates hepatic ischemia and reperfusion injury through enhancing efferocytosis of macrophages via AMPK/STAT3/S1PR1 pathway. J Nutr Biochem 2024; 126:109587. [PMID: 38262562 DOI: 10.1016/j.jnutbio.2024.109587] [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: 09/25/2023] [Revised: 01/09/2024] [Accepted: 01/17/2024] [Indexed: 01/25/2024]
Abstract
Calorie restriction (CR) mimetic, resveratrol (RSV), has the capacity of promoting phagocytosis. However, its role in hepatic ischemia and reperfusion injury (HIRI) remains poorly understood. This study aimed to investigate the effect of RSV on alleviating HIRI and explore the underlying mechanisms. RSV was intraperitoneally injected in mice HIRI model, while RSV was co-incubated with culture medium for 24 h in RAW 264.7 cells and kupffer cells. Macrophage efferocytosis was assessed by immunostaining of PI and F4/80. The clearance of apoptotic neutrophils in the liver was determined by immunostaining of Ly6-G and cleaved-caspase-3. HE staining, Suzuki's score, serum levels of ALT, AST, TNF-α and IL-1β were analyzed to evaluate HIRI. The efferocytosis inhibitor, Cytochalasin D, was utilized to investigate the effect of RSV on HIRI. Western blot was employed to measure the levels of AMPKα, phospho-AMPKα, STAT3, phospho-STAT3 and S1PR1. SiSTAT3 and inhibitors targeting AMPK, STAT3 and S1PR1, respectively, were used to confirm the involvement of AMPK/STAT3/S1PR1 pathway in RSV-mediated efferocytosis and HIRI. RSV facilitated the clearance of apoptotic neutrophils and attenuated HIRI, which was impeded by Cytochalasin D. RSV boosted macrophage efferocytosis by up-regulating the levels of phospho-AMPKα, phospho-STAT3 and S1PR1, which was reversed by AMPK, STAT3 and S1PR1 inhibitors, respectively. Inhibition of STAT3 suppressed RSV-induced clearance of apoptotic neutrophils and exacerbated HIRI. CR mimetic, RSV, alleviates HIRI by promoting macrophages efferocytosis through AMPK/STAT3/S1PR1 pathway, providing valuable insights into the mechanisms underlying the protective effects of CR on attenuating HIRI.
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Affiliation(s)
- Xueya Yao
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, Shanghai, China
| | - Yingxiang Liu
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, Shanghai, China
| | - Menghan Mao
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, Shanghai, China
| | - Liqun Yang
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, Shanghai, China.
| | - Qionghui Zhan
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, Shanghai, China.
| | - Jie Xiao
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, Shanghai, China.
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Alkafaas SS, Elsalahaty MI, Ismail DF, Radwan MA, Elkafas SS, Loutfy SA, Elshazli RM, Baazaoui N, Ahmed AE, Hafez W, Diab M, Sakran M, El-Saadony MT, El-Tarabily KA, Kamal HK, Hessien M. The emerging roles of sphingosine 1-phosphate and SphK1 in cancer resistance: a promising therapeutic target. Cancer Cell Int 2024; 24:89. [PMID: 38419070 PMCID: PMC10903003 DOI: 10.1186/s12935-024-03221-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 01/09/2024] [Indexed: 03/02/2024] Open
Abstract
Cancer chemoresistance is a problematic dilemma that significantly restrains numerous cancer management protocols. It can promote cancer recurrence, spreading of cancer, and finally, mortality. Accordingly, enhancing the responsiveness of cancer cells towards chemotherapies could be a vital approach to overcoming cancer chemoresistance. Tumour cells express a high level of sphingosine kinase-1 (SphK1), which acts as a protooncogenic factor and is responsible for the synthesis of sphingosine-1 phosphate (S1P). S1P is released through a Human ATP-binding cassette (ABC) transporter to interact with other phosphosphingolipids components in the interstitial fluid in the tumor microenvironment (TME), provoking communication, progression, invasion, and tumor metastasis. Also, S1P is associated with several impacts, including anti-apoptotic behavior, metastasis, mesenchymal transition (EMT), angiogenesis, and chemotherapy resistance. Recent reports addressed high levels of S1P in several carcinomas, including ovarian, prostate, colorectal, breast, and HCC. Therefore, targeting the S1P/SphK signaling pathway is an emerging therapeutic approach to efficiently attenuate chemoresistance. In this review, we comprehensively discussed S1P functions, metabolism, transport, and signaling. Also, through a bioinformatic framework, we pointed out the alterations of SphK1 gene expression within different cancers with their impact on patient survival, and we demonstrated the protein-protein network of SphK1, elaborating its sparse roles. Furthermore, we made emphasis on different machineries of cancer resistance and the tight link with S1P. We evaluated all publicly available SphK1 inhibitors and their inhibition activity using molecular docking and how SphK1 inhibitors reduce the production of S1P and might reduce chemoresistance, an approach that might be vital in the course of cancer treatment and prognosis.
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Affiliation(s)
- Samar Sami Alkafaas
- Molecular Cell Biology Unit, Division of Biochemistry, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Mohamed I Elsalahaty
- Biochemistry Division, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Doha F Ismail
- Biochemistry Division, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Mustafa Ali Radwan
- Biochemistry Division, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Sara Samy Elkafas
- Production Engineering and Mechanical Design Department, Faculty of Engineering, Menofia University, Menofia, Egypt
- Faculty of Control System and Robotics, ITMO University, Saint-Petersburg, 197101, Russia
| | - Samah A Loutfy
- Virology and Immunology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
- Nanotechnology Research Center, British University, Cairo, Egypt
| | - Rami M Elshazli
- Biochemistry and Molecular Genetics Unit, Department of Basic Sciences, Faculty of Physical Therapy, Horus University-Egypt, New Damietta, 34517, Egypt
| | - Narjes Baazaoui
- Biology Department, College of Sciences and Arts Muhayil Assir, King Khalid University, Abha 61421, Saudi Arabia
| | - Ahmed Ezzat Ahmed
- Biology Department, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Wael Hafez
- NMC Royal Hospital, 16th Street, 35233, Khalifa, Abu Dhabi, United Arab Emirates
- Medical Research Division, Department of Internal Medicine, The National Research Centre, Cairo 11511, Egypt
| | - Mohanad Diab
- Burjeel Hospital Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Mohamed Sakran
- Biochemistry Division, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt
- Biochemistry Department, Faculty of Science, University of Tabuk, Tabuk 47512, Saudi Arabia
| | - Mohamed T El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Khaled A El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
| | - Hani K Kamal
- Anatomy and Histology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohamed Hessien
- Molecular Cell Biology Unit, Division of Biochemistry, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt
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Wilkinson J, Lehmler HJ, Roman DL. High-Throughput GPCRome Screen of Pollutants Reveals the Activity of Polychlorinated Biphenyls at Melatonin and Sphingosine-1-phosphate Receptors. Chem Res Toxicol 2024; 37:439-449. [PMID: 38295294 PMCID: PMC10880096 DOI: 10.1021/acs.chemrestox.3c00388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/05/2024] [Accepted: 01/15/2024] [Indexed: 02/02/2024]
Abstract
Exposure to environmental pollutants is linked to numerous toxic outcomes, warranting concern about the effect of pollutants on human health. To assess the threat of pollutant exposure, it is essential to understand their biological activity. Unfortunately, gaps remain for many pollutants' specific biological activity and molecular targets. A superfamily of signaling proteins, G-protein-coupled receptors (GPCRs), has been shown as potential targets for pollutant activity. However, research investigating the pollutant activity at the GPCRome is scarce. This work explores pollutant activity across a library of human GPCRs by leveraging modern high-throughput screening techniques devised for drug discovery and pharmacology. We designed and implemented a pilot screen of eight pollutants at 314 human GPCRs and discovered specific polychlorinated biphenyl (PCB) activity at sphingosine-1-phosphate and melatonin receptors. The method utilizes open-source resources available to academic and governmental institutions to enable future campaigns that screen large numbers of pollutants. Thus, we present a novel high-throughput approach to assess the biological activity and specific targets of pollutants.
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Affiliation(s)
- Joshua
C. Wilkinson
- Department
of Pharmaceutical Sciences and Experimental Therapeutics, College
of Pharmacy, University of Iowa, Iowa City, Iowa 52242, United States
| | - Hans-Joachim Lehmler
- Department
of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, Iowa 52242, United States
- Interdisciplinary
Graduate Program in Neuroscience, University
of Iowa, Iowa City, Iowa 52242, United States
- Interdisciplinary
Graduate Program in Human Toxicology, University
of Iowa, Iowa City, Iowa 52242, United States
| | - David L. Roman
- Department
of Pharmaceutical Sciences and Experimental Therapeutics, College
of Pharmacy, University of Iowa, Iowa City, Iowa 52242, United States
- Iowa
Neuroscience Institute, Roy J. and Lucille A. Carver College of Medicine,
University of Iowa, Iowa City, Iowa 52242, United States
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Wan S, Xie X, Yang G, Feng F. Discovery of the toxicity-related quality markers and mechanisms of Zhi-Zi-Hou-Po decoction based on Chinmedomics combined with differentially absorbed components and network pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2024; 320:117408. [PMID: 37972910 DOI: 10.1016/j.jep.2023.117408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/02/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Zhi-Zi-Hou-Po decoction (ZZHPD), as a representative traditional Chinese medicine (TCM) formula for the treatment of depression, has frequently triggered hepatorenal toxicity in recent years. However, its toxic effect, material basis, and underlying mechanisms have not been fully elucidated. AIM OF THE STUDY To explore the hepatorenal toxicity-material basis-quality markers (Q-markers) and multiple mechanisms of ZZHPD. MATERIALS AND METHODS ZZHPD-induced rat model of toxicity was evaluated by behavioral indicators, biochemical parameters, and histopathological sections. Then, UHPLC-Q-Exactive Orbitrap-MS combined with multivariate data analysis was utilized to identify the endogenous differential metabolites and the prototype components of ZZHPD in the plasma. A comprehensive strategy integrating in-house library, diagnostic ions, Compound Discover software, and network databases was constructed to identify the chemical constituents of ZZHPD. Additionally, the differentially absorbed components of ZZHPD were screened out based on the spectrum-effect relationship (toxic state and normal state), feature extraction of exogenous components, and variable influence on projection (VIP). Further, Chinmedomics and network pharmacology oriented by differentially absorbed components were performed to predict toxicity-related Q-markers and core targets, as well as relevant pathways. Finally, the binding ability between components and targets was predicted using molecular docking, and the mRNA expression of core target genes was determined by real-time qPCR experiment. RESULTS ZZHPD exerted significant hepatotoxicity and nephrotoxicity in rats accompanied by body weight loss, abnormal biochemical indicators, and pathologic characteristics with mild inflammation and cell damage. The results of plasma metabolomics indicated that 22 differential metabolites interfered by ZZHPD mainly involved in primary bile acid biosynthesis, arginine and proline metabolism, phenylalanine metabolism and biosynthesis, sphingolipid metabolism, pyrimidine and purine metabolism. Firstly, 106 chemical substances of ZZHPD were identified, 44 of them were absorbed into the blood, mainly including 7 iridoid glycosides, 15 flavonoids, 5 lignans, and others. Then, the correlation analysis results suggested that 12 of 19 differentially absorbed constituents were highly correlated with 22 differential metabolites and recognized as potential Q-markers. Finally, 9 toxicity-related Q-markers were predicted and confirmed with better binding ability to 5 core targets (PTGS2, CASP3, TNF, PPARG, HMOX1), including 3 flavonoids (naringin, hesperidin, and neohesperidin), 2 iridoid glycosides (geniposide and genipin-1-β-D-gentiobioside), 2 lignans (honokiol and magnolol), organic acid (chlorogenic acid), and crocin (crocetin). The real-time qPCR results showed that the mRNA levels of CASP3, TNF-α, and PPARG significantly increased in the damaged liver. Combining metabolomics and network pharmacology results, the multiple mechanisms of toxicity might involve in oxidative damage, inflammation, and apoptosis pathways. CONCLUSION Taken together, the toxicity-related Q-markers of ZZHPD screened for the first time in this work were reliable, and the holistic intervention for hepatorenal toxicity further revealed the multi-component, multi-target, and multi-pathway features in TCM. The integrated approach provides a novel perspective for the discovery of toxicity/efficacy-related substances and mechanistic studies in TCM.
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Affiliation(s)
- Shulin Wan
- Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing 210009, China.
| | - Xiaoxia Xie
- Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing 210009, China.
| | - Gongjun Yang
- Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Fang Feng
- Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
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Yang S, Li HW, Tian JY, Wang ZK, Chen Y, Zhan TT, Ma CY, Feng M, Cao SF, Zhao Y, Li X, Ren J, Liu Q, Jin LY, Wang ZQ, Jiang WY, Zhao YX, Zhang Y, Liu X. Myeloid-derived growth factor suppresses VSMC dedifferentiation and attenuates postinjury neointimal formation in rats by activating S1PR2 and its downstream signaling. Acta Pharmacol Sin 2024; 45:98-111. [PMID: 37726422 PMCID: PMC10770085 DOI: 10.1038/s41401-023-01155-x] [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: 03/15/2023] [Accepted: 08/13/2023] [Indexed: 09/21/2023] Open
Abstract
Restenosis after angioplasty is caused usually by neointima formation characterized by aberrant vascular smooth muscle cell (VSMC) dedifferentiation. Myeloid-derived growth factor (MYDGF), secreted from bone marrow-derived monocytes and macrophages, has been found to have cardioprotective effects. In this study we investigated the effect of MYDGF to postinjury neointimal formation and the underlying mechanisms. Rat carotid arteries balloon-injured model was established. We found that plasma MYDGF content and the level of MYDGF in injured arteries were significantly decreased after balloon injury. Local application of exogenous MYDGF (50 μg/mL) around the injured vessel during balloon injury markedly ameliorated the development of neointimal formation evidenced by relieving the narrow endovascular diameter, improving hemodynamics, and reducing collagen deposition. In addition, local application of MYDGF inhibited VSMC dedifferentiation, which was proved by reversing the elevated levels of osteopontin (OPN) protein and decreased levels of α-smooth muscle actin (α-SMA) in the left carotid arteries. We showed that PDGF-BB (30 ng/mL) stimulated VSMC proliferation, migration and dedifferentiation in vitro; pretreatment with MYDGF (50-200 ng/mL) concentration-dependently eliminated PDGF-BB-induced cell proliferation, migration and dedifferentiation. Molecular docking revealed that MYDGF had the potential to bind with sphingosine-1-phosphate receptor 2 (S1PR2), which was confirmed by SPR assay and Co-IP analysis. Pretreatment with CCG-1423 (Rho signaling inhibitor), JTE-013 (S1PR2 antagonist) or Ripasudil (ROCK inhibitor) circumvented the inhibitory effects of MYDGF on VSMC phenotypic switching through inhibiting S1PR2 or its downstream RhoA-actin monomers (G-actin) /actin filaments (F-actin)-MRTF-A signaling. In summary, this study proves that MYDGF relieves neointimal formation of carotid arteries in response to balloon injury in rats, and suppresses VSMC dedifferentiation induced by PDGF-BB via S1PR2-RhoA-G/F-actin-MRTF-A signaling pathway. In addition, our results provide evidence for cross talk between bone marrow and vasculature.
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Affiliation(s)
- Shuang Yang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Hou-Wei Li
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
- Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China
| | - Jia-Ying Tian
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Zheng-Kai Wang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Yi Chen
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Ting-Ting Zhan
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Chun-Yue Ma
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Min Feng
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Shi-Feng Cao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Yu Zhao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Xue Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Jing Ren
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Qian Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Lu-Ying Jin
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Zhi-Qi Wang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Wen-Yu Jiang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Yi-Xiu Zhao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China
| | - Yan Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China.
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China.
| | - Xue Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, National-Local Joint Engineering Laboratory for Drug Research and Development of Cardio-Cerebrovascular Diseases in Frigid Zone, the National Development and Reform Commission, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150086, China.
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin, 150086, China.
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Yang Q, Tang D, Gan C, Bai M, Song X, Jiang W, Li Q, Chen Y, Zhang A, Wang M. Novel variants in CRB2 targeting the malfunction of slit diaphragm related to focal segmental glomerulosclerosis. Pediatr Nephrol 2024; 39:149-165. [PMID: 37452832 DOI: 10.1007/s00467-023-06087-6] [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: 04/22/2023] [Revised: 06/01/2023] [Accepted: 06/29/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Focal segmental glomerulosclerosis (FSGS) is a leading cause of steroid-resistant nephrotic syndrome (SRNS) that predominantly affects the podocytes. While mutations in genes causing pediatric SRNS have enhanced our understanding of FSGS, the disease's etiology remains complex and poorly understood. METHODS Whole exome sequencing (WES) was performed on a 9-year-old girl with SRNS associated with FSGS (SRNS-FSGS). We analyzed the expression of CRB2, slit diaphragm (SD)-associated proteins, and sphingosine 1-phosphate receptor 1 (S1PR1) in the proband and CRB2 knock-down podocytes. RESULTS In this study, we identified two novel compound heterozygous mutations in the Crumbs homolog 2 (CRB2) gene (c.2905delinsGCCACCTCGCGCTGGCTG, p.T969Afs*179 and c.3268C > G, p.R1090G) in a family with early-onset SRNS-FSGS. Our findings demonstrate that these CRB2 abnormalities were the underlying cause of SRNS-FSGS. CRB2 defects led to the dysfunction of podocyte SD-related proteins, including podocin, nephrin, and zonula occludens-1 (ZO-1), by reducing the phosphorylation level of S1PR1. Interestingly, the podocytic cytoskeleton remained unaffected, as demonstrated by normal expression and localization of synaptopodin. Our study also revealed a secondary decrease in CRB2 expression in idiopathic FSGS patients, indicating that CRB2 mutations may cause FSGS through a previously unknown mechanism involving SD-related proteins. CONCLUSIONS Overall, our findings shed new light on the pathogenesis of SRNS-FSGS and revealed that the novel pathogenic mutations in CRB2 contribute to the development of FSGS through a previously unknown mechanism involving SD-related proteins. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Qing Yang
- Pediatric Research Institute, Department of Nephrology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Dan Tang
- Department of Pediatrics, The Third Hospital of Mianyang, Sichuan Mental Health Center, Mianyang, 621000, Sichuan, China
| | - Chun Gan
- Pediatric Research Institute, Department of Nephrology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Mi Bai
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, 72 Guangzhou Road, Nanjing, 210008, China
| | - Xiaomei Song
- Pediatric Research Institute, Department of Nephrology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Wei Jiang
- Pediatric Research Institute, Department of Nephrology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Qiu Li
- Pediatric Research Institute, Department of Nephrology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Yaxi Chen
- Centre for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, People's Republic of China
| | - Aihua Zhang
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, 72 Guangzhou Road, Nanjing, 210008, China
| | - Mo Wang
- Pediatric Research Institute, Department of Nephrology Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China.
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12
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Zhang Y, Li H, Liu X, Wang Q, Zhao D, Su M, Jia Z, Shen S. Integrating Metabolomics and Network Pharmacology to Decipher the Hepatoprotective Effect Mechanisms of Magnesium Isoglycyrrhizinate Injection. Curr Issues Mol Biol 2023; 46:279-298. [PMID: 38248321 PMCID: PMC10813909 DOI: 10.3390/cimb46010019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/15/2023] [Accepted: 12/28/2023] [Indexed: 01/23/2024] Open
Abstract
This study aimed to explore the liver protective effects of a fourth-generation glycyrrhizic acid product (magnesium isoglycyrrhizinate injection, MII) in the treatment of mice with drug-induced liver injury-specifically, to determine its effects on plasma metabolites. Moreover, the possible mechanism of its intervention in lipid metabolism and amino acid metabolism through the liver protective effect was preliminarily explored, combined with network pharmacology. The liver injury model of mice was established using acetaminophen (APAP). The protective effect of MII on the mice model was evaluated using pathological tissue sections and biochemical indices such as alanine transaminase (ALT), aspartate aminotransferase (AST), and superoxide dismutase (SOD). Metabolomics analysis of plasma was performed using the UHPLC-QTOF/MS technique to screen for potential biomarkers and enriched metabolic pathways. The potential targets and pathways of MII were predicted by network pharmacology, and the mechanism was verified by Western blot analysis. MII significantly improved the pathological liver changes in mice with liver injury. The content of ALT and AST was decreased, and the activity of SOD was increased significantly (p < 0.05, 0.01). A total of 29 potential biomarkers were identified in the metabolomics analysis, mainly involving seven pathways, such as lipid metabolism and amino acid metabolism. A total of 44 intersection targets of MII in the treatment of liver injury were obtained by network pharmacology, involving lipid metabolism and other related pathways. Western blot analysis results showed that MII could significantly reduce the expression of JAK2 and STAT3. MII can effectively ameliorate liver injury in modeled mice through related pathways such as lipid metabolism and amino acid metabolism. This study could provide not only a scientific basis for the elucidation of the mechanism of action of MII in exerting a hepatoprotective effect, but also a reference for its rational clinical application.
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Affiliation(s)
- Yihua Zhang
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, China; (Y.Z.); (H.L.); (M.S.)
- NDMA Key Laboratory for Quality Control and Evaluation of Generic Drug, Hebei Institute for Drug and Medical Device Control, Shijiazhuang 050200, China; (X.L.); (Q.W.); (D.Z.)
| | - Hui Li
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, China; (Y.Z.); (H.L.); (M.S.)
- NDMA Key Laboratory for Quality Control and Evaluation of Generic Drug, Hebei Institute for Drug and Medical Device Control, Shijiazhuang 050200, China; (X.L.); (Q.W.); (D.Z.)
| | - Xueli Liu
- NDMA Key Laboratory for Quality Control and Evaluation of Generic Drug, Hebei Institute for Drug and Medical Device Control, Shijiazhuang 050200, China; (X.L.); (Q.W.); (D.Z.)
| | - Qiang Wang
- NDMA Key Laboratory for Quality Control and Evaluation of Generic Drug, Hebei Institute for Drug and Medical Device Control, Shijiazhuang 050200, China; (X.L.); (Q.W.); (D.Z.)
| | - Dong Zhao
- NDMA Key Laboratory for Quality Control and Evaluation of Generic Drug, Hebei Institute for Drug and Medical Device Control, Shijiazhuang 050200, China; (X.L.); (Q.W.); (D.Z.)
| | - Ming Su
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, China; (Y.Z.); (H.L.); (M.S.)
| | - Zhixin Jia
- National Institutes for Food and Drug Control, Beijing 102629, China;
| | - Shigang Shen
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, China; (Y.Z.); (H.L.); (M.S.)
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Grasso G, Sommella EM, Merciai F, Abouhany R, Shinde SA, Campiglia P, Sellergren B, Crescenzi C. Enhanced selective capture of phosphomonoester lipids enabling highly sensitive detection of sphingosine 1-phosphate. Anal Bioanal Chem 2023; 415:6573-6582. [PMID: 37736841 PMCID: PMC10567913 DOI: 10.1007/s00216-023-04937-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/09/2023] [Accepted: 08/24/2023] [Indexed: 09/23/2023]
Abstract
Sphingolipids play crucial roles in cellular membranes, myelin stability, and signalling responses to physiological cues and stress. Among them, sphingosine 1-phosphate (S1P) has been recognized as a relevant biomarker for neurodegenerative diseases, and its analogue FTY-720 has been approved by the FDA for the treatment of relapsing-remitting multiple sclerosis. Focusing on these targets, we here report three novel polymeric capture phases for the selective extraction of the natural biomarker and its analogue drug. To enhance analytical performance, we employed different synthetic approaches using a cationic monomer and a hydrophobic copolymer of styrene-DVB. Results have demonstrated high affinity of the sorbents towards S1P and fingolimod phosphate (FTY-720-P, FP). This evidence proved that lipids containing phosphate diester moiety in their structures did not constitute obstacles for the interaction of phosphate monoester lipids when loaded into an SPE cartridge. Our suggested approach offers a valuable tool for developing efficient analytical procedures.
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Affiliation(s)
- Giuliana Grasso
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
- Biofilm Research Center for Biointerfaces, Department of Biomedical Sciences, Faculty of Health and Society, Malmö University, 23014, Malmö, Sweden
| | - Eduardo M Sommella
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Fabrizio Merciai
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Rahma Abouhany
- Biofilm Research Center for Biointerfaces, Department of Biomedical Sciences, Faculty of Health and Society, Malmö University, 23014, Malmö, Sweden
| | - Sudhirkumar A Shinde
- Biofilm Research Center for Biointerfaces, Department of Biomedical Sciences, Faculty of Health and Society, Malmö University, 23014, Malmö, Sweden
- School of Consciousness, Dr. Vishwanath Karad MIT World Peace University, 411038, Pune, India
| | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Börje Sellergren
- Biofilm Research Center for Biointerfaces, Department of Biomedical Sciences, Faculty of Health and Society, Malmö University, 23014, Malmö, Sweden
| | - Carlo Crescenzi
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy.
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Bzdęga W, Kurzyna PF, Harasim-Symbor E, Hołownia A, Chabowski A, Konstantynowicz-Nowicka K. How Does CBG Administration Affect Sphingolipid Deposition in the Liver of Insulin-Resistant Rats? Nutrients 2023; 15:4350. [PMID: 37892425 PMCID: PMC10609522 DOI: 10.3390/nu15204350] [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: 09/08/2023] [Revised: 10/03/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Cannabigerol (CBG), a non-psychotropic phytocannabinoid found in Cannabis sativa plants, has been the focus of recent studies due to its potential therapeutic properties. We proposed that by focusing on sphingolipid metabolism, which plays a critical role in insulin signaling and the development of insulin resistance, CBG may provide a novel therapeutic approach for metabolic disorders, particularly insulin resistance. METHODS In a rat model of insulin resistance induced by a high-fat, high-sucrose diet (HFHS), we aimed to elucidate the effect of intragastrically administered CBG on hepatic sphingolipid deposition and metabolism. Moreover, we also elucidated the expression of sphingolipid transporters and changes in the sphingolipid concentration in the plasma. RESULTS The results, surprisingly, showed a lack of changes in de novo ceramide synthesis pathway enzymes and significant enhancement in the expression of enzymes involved in ceramide catabolism, which was confirmed by changes in hepatic sphingomyelin, sphinganine, sphingosine-1-phosphate, and sphinganine-1-phosphate concentrations. CONCLUSIONS The results suggest that CBG treatment may modulate sphingolipid metabolism in the liver and plasma, potentially protecting the liver against the development of metabolic disorders such as insulin resistance.
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Affiliation(s)
- Wiktor Bzdęga
- Department of Physiology, Medical University of Bialystok, 15-089 Bialystok, Poland; (W.B.); (P.F.K.); (E.H.-S.); (A.C.)
| | - Piotr Franciszek Kurzyna
- Department of Physiology, Medical University of Bialystok, 15-089 Bialystok, Poland; (W.B.); (P.F.K.); (E.H.-S.); (A.C.)
| | - Ewa Harasim-Symbor
- Department of Physiology, Medical University of Bialystok, 15-089 Bialystok, Poland; (W.B.); (P.F.K.); (E.H.-S.); (A.C.)
| | - Adam Hołownia
- Department of Pharmacology, Medical University of Bialystok, 15-089 Bialystok, Poland;
| | - Adrian Chabowski
- Department of Physiology, Medical University of Bialystok, 15-089 Bialystok, Poland; (W.B.); (P.F.K.); (E.H.-S.); (A.C.)
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15
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Sun G, Wang B, Zhu H, Ye J, Liu X. Role of sphingosine 1-phosphate (S1P) in sepsis-associated intestinal injury. Front Med (Lausanne) 2023; 10:1265398. [PMID: 37746079 PMCID: PMC10514503 DOI: 10.3389/fmed.2023.1265398] [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: 07/22/2023] [Accepted: 08/28/2023] [Indexed: 09/26/2023] Open
Abstract
Sphingosine-1-phosphate (S1P) is a widespread lipid signaling molecule that binds to five sphingosine-1-phosphate receptors (S1PRs) to regulate downstream signaling pathways. Sepsis can cause intestinal injury and intestinal injury can aggravate sepsis. Thus, intestinal injury and sepsis are mutually interdependent. S1P is more abundant in intestinal tissues as compared to other tissues, exerts anti-inflammatory effects, promotes immune cell trafficking, and protects the intestinal barrier. Despite the clinical importance of S1P in inflammation, with a very well-defined mechanism in inflammatory bowel disease, their role in sepsis-induced intestinal injury has been relatively unexplored. In addition to regulating lymphocyte exit, the S1P-S1PR pathway has been implicated in the gut microbiota, intestinal epithelial cells (IECs), and immune cells in the lamina propria. This review mainly elaborates on the physiological role of S1P in sepsis, focusing on intestinal injury. We introduce the generation and metabolism of S1P, emphasize the maintenance of intestinal barrier homeostasis in sepsis, and the protective effect of S1P in the intestine. We also review the link between sepsis-induced intestinal injury and S1P-S1PRs signaling, as well as the underlying mechanisms of action. Finally, we discuss how S1PRs affect intestinal function and become targets for future drug development to improve the translational capacity of preclinical studies to the clinic.
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Affiliation(s)
- Gehui Sun
- Gannan Medical University, Ganzhou, Jiangxi, China
- The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Bin Wang
- Gannan Medical University, Ganzhou, Jiangxi, China
- The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Hongquan Zhu
- The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Critical Care Medicine, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Junming Ye
- Gannan Medical University, Ganzhou, Jiangxi, China
- Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Xiaofeng Liu
- Suzhou Medical College of Soochow University, Suzhou, Jiangsu, China
- Department of Emergency, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
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Zeng J, Fan J, Zhou H. Bile acid-mediated signaling in cholestatic liver diseases. Cell Biosci 2023; 13:77. [PMID: 37120573 PMCID: PMC10149012 DOI: 10.1186/s13578-023-01035-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/18/2023] [Indexed: 05/01/2023] Open
Abstract
Chronic cholestatic liver diseases, such as primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC), are associated with bile stasis and gradually progress to fibrosis, cirrhosis, and liver failure, which requires liver transplantation. Although ursodeoxycholic acid is effective in slowing the disease progression of PBC, it has limited efficacy in PSC patients. It is challenging to develop effective therapeutic agents due to the limited understanding of disease pathogenesis. During the last decade, numerous studies have demonstrated that disruption of bile acid (BA) metabolism and intrahepatic circulation promotes the progression of cholestatic liver diseases. BAs not only play an essential role in nutrition absorption as detergents but also play an important role in regulating hepatic metabolism and modulating immune responses as key signaling molecules. Several excellent papers have recently reviewed the role of BAs in metabolic liver diseases. This review focuses on BA-mediated signaling in cholestatic liver disease.
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Affiliation(s)
- Jing Zeng
- Department of Microbiology and Immunology, Medical College of Virginia and Richmond VA Medical Center, Central Virginia Veterans Healthcare System, Virginia Commonwealth University, 1220 East Broad Street, MMRB-5044, Richmond, VA, 23298-0678, USA
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Jiangao Fan
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Huiping Zhou
- Department of Microbiology and Immunology, Medical College of Virginia and Richmond VA Medical Center, Central Virginia Veterans Healthcare System, Virginia Commonwealth University, 1220 East Broad Street, MMRB-5044, Richmond, VA, 23298-0678, USA.
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Saurabh K, Mbadhi MN, Prifti KK, Martin KT, Frolova AI. Sphingosine 1-Phosphate Activates S1PR3 to Induce a Proinflammatory Phenotype in Human Myometrial Cells. Endocrinology 2023; 164:bqad066. [PMID: 37120767 PMCID: PMC10201982 DOI: 10.1210/endocr/bqad066] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/19/2023] [Accepted: 04/25/2023] [Indexed: 05/01/2023]
Abstract
One of the common mechanisms responsible for obstetric complications, affecting millions of women every year, is abnormal uterine contractility. Despite the critical importance of this process for women's health, the mechanisms of uterine contraction regulation remain poorly understood. The initiation of uterine smooth muscle (myometrial) contraction is an inflammatory process, accompanied by upregulation of proinflammatory genes and cytokine release. In this study, we show that sphingolipid metabolism is activated during human labor and that sphingosine 1-phosphate (S1P), the main bioactive sphingolipid, may modify the myometrial proinflammatory phenotype. Our data in both primary and immortalized human myometrial cells show that exogenous S1P induces a proinflammatory gene signature and upregulates the expression of known inflammatory markers of parturition, such as IL8 and COX2. Using expression of IL8 as a readout for S1P activity in myometrial cells, we established that these S1P effects are mediated through the activation of S1P receptor 3 (S1PR3) and downstream activation of ERK1/2 pathways. Inhibition of S1PR3 in human myometrial cells attenuates upregulation of IL8, COX2, and JUNB both at the mRNA and protein levels. Furthermore, activation of S1PR3 with a receptor-specific agonist recapitulated the effects seen after treatment with exogenous S1P. Collectively, these results suggest a signaling pathway activated by S1P in human myometrium during parturition and propose new targets for development of novel therapeutics to alter uterine contractility during management of preterm labor or labor dystocia.
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Affiliation(s)
- Kumar Saurabh
- Department of Obstetrics and Gynecology, Center for Reproductive Health Sciences, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Magdaleena Naemi Mbadhi
- Department of Obstetrics and Gynecology, Center for Reproductive Health Sciences, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Kevin K Prifti
- Department of Obstetrics and Gynecology, Center for Reproductive Health Sciences, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Kaci T Martin
- Department of Obstetrics and Gynecology, Center for Reproductive Health Sciences, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Antonina I Frolova
- Department of Obstetrics and Gynecology, Center for Reproductive Health Sciences, Washington University in St. Louis, St. Louis, MO 63110, USA
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Mok CC. Targeted Small Molecules for Systemic Lupus Erythematosus: Drugs in the Pipeline. Drugs 2023; 83:479-496. [PMID: 36972009 PMCID: PMC10042116 DOI: 10.1007/s40265-023-01856-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2023] [Indexed: 03/29/2023]
Abstract
Despite the uncertainty of the pathogenesis of systemic lupus erythematosus, novel small molecules targeting specific intracellular mechanisms of immune cells are being developed to reverse the pathophysiological processes. These targeted molecules have the advantages of convenient administration, lower production costs, and the lack of immunogenicity. The Janus kinases, Bruton's tyrosine kinases, and spleen tyrosine kinases are important enzymes for activating downstream signals from various receptors on immune cells that include cytokines, growth factor, hormones, Fc, CD40, and B-cell receptors. Suppression of these kinases impairs cellular activation, differentiation, and survival, leading to diminished cytokine actions and autoantibody secretion. Intracellular protein degradation by immunoproteasomes, levered by the cereblon E3 ubiquitin ligase complex, is an essential process for the regulation of cellular functions and survival. Modulation of the immunoproteasomes and cereblon leads to depletion of long-lived plasma cells, reduced plasmablast differentiation, and production of autoantibodies and interferon-α. The sphingosine 1-phosphate/sphingosine 1-phosphate receptor-1 pathway is responsible for lymphocyte trafficking, regulatory T-cell/Th17 cell homeostasis, and vascular permeability. Sphingosine 1-phosphate receptor-1 modulators limit the trafficking of autoreactive lymphocytes across the blood-brain barrier, increase regulatory T-cell function, and decrease production of autoantibodies and type I interferons. This article summarizes the development of these targeted small molecules in the treatment of systemic lupus erythematosus, and the future prospect for precision medicine.
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Affiliation(s)
- Chi Chiu Mok
- Department of Medicine, Tuen Mun Hospital, Tsing Chung Koon Road, New Territories, Hong Kong SAR, China.
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Wang X, Huang R, Huang B, Li X. S1PR2 Regulates Autophagy Through the AKT/mTOR Pathway to Promote Pathological Damage in Alzheimer's Disease. J Alzheimers Dis 2023; 96:1489-1504. [PMID: 38007654 DOI: 10.3233/jad-230533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2023]
Abstract
BACKGROUND Alzheimer's disease (AD) is a fatal and debilitating neurodegenerative disease. Sphingosine-1-phosphate receptor 2 (S1PR2), one of the receptors of S1P, is a key regulatory factor for various diseases. OBJECTIVE This study aimed to explore the role and possible mechanism of S1PR2 in AD. METHODS S1PR2 expression in the AD mice was detected, and after intervening S1PR2 expression with sh-S1PR2 in AD mice, the behavioral changes, pathological lesions of the hippocampus, autophagy level, and AKT/mTOR pathway activation were analyzed. Furthermore, SH-SY5Y cells were induced by Aβ25-35 to construct an AD cell model, and the effects of sh-S1PR2 on proliferation, apoptosis, autophagy, and AKT/mTOR pathway of AD cells were investigated. In addition, the effects of pathway inhibitor rapamycin on model cells were further analyzed. RESULTS The expression of S1PR2 was significantly increased in AD mice, the sh-S1PR2 significantly improved behavioral dysfunction, alleviated pathological injury of the hippocampus, increased the number of neurons, and inhibited Aβ production and p-tau expression, showing a positive effect on the AD pathology. In addition, silencing of S1PR2 expression significantly promoted the autophagy level and inhibited the activation of the AKT/mTOR pathway in AD model mice. In vitro experiments further confirmed that sh-S1PR2 promoted cell proliferation, inhibited apoptosis, relieved cytopathology, promoted autophagy, and inhibited the activation of the AKT/mTOR pathway in the cell model. The use of rapamycin further confirmed the role of AKT/mTOR pathway-mediated autophagy in the regulation of AD by S1PR2. CONCLUSION S1PR2 promoted AD pathogenesis by inhibiting autophagy through the activation of AKT/mTOR pathway.
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Affiliation(s)
- Xiaoping Wang
- Department of Neurology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Sichuan, China
| | - Rui Huang
- Department of Neurology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Sichuan, China
| | - Bin Huang
- Department of Neurology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Sichuan, China
| | - Xiaojia Li
- Department of Neurology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Sichuan, China
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