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Nishida S, Matovelo SA, Kajimoto T, Nakamura SI, Okada T. Involvement of sphingosine 1-phosphate signaling in insulin-like growth factor-II/mannose 6-phosphate receptor trafficking from endosome to the trans-Golgi network. Commun Biol 2024; 7:1182. [PMID: 39300315 DOI: 10.1038/s42003-024-06828-9] [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: 10/17/2023] [Accepted: 09/03/2024] [Indexed: 09/22/2024] Open
Abstract
The insulin-like growth factor II/mannose 6-phosphate (IGF-II/M6P) receptor is a multifunctional glycoprotein not only play roles in IGF-II degradation and pro-TGFβ activation but binding to and transport M6P-bearing lysosomal enzymes from the trans-Golgi network (TGN) or the cell surface to lysosomes. At present, information regarding a retrograde transport of IGF-II/M6P receptor from endosomes to the TGN is still limited. We show here that a continuous ligand-dependent activation of sphingosine 1-phosphate receptor type 3 (S1P3R) on the endosomal membranes is required for subsequent recycling back of cargo-unloaded IGF-II/M6P receptors to the TGN. We have further clarified that Gq coupled with S1P3R plays a critical role in the activation of casein kinase 2, which phosphorylates and keeps PACS1 connector protein active for the association with IGF-II/M6P receptors, which enables transport carrier formation with the aid of other adaptor proteins toward the TGN. These findings shed light on the molecular mechanism underlying how continuous activation of the S1P receptor and subsequent downstream Gq signaling regulates the retrograde transport of the empty IGF-II/M6P receptors back to the TGN.
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Affiliation(s)
- Susumu Nishida
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shubi Ambwene Matovelo
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
- Department of Medical Biochemistry, School of Medicine and Dentistry, The University of Dodoma, Dodoma, Tanzania
| | - Taketoshi Kajimoto
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shun-Ichi Nakamura
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Taro Okada
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan.
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Jiang L, Zhao Y, Liu F, Huang Y, Zhang Y, Yuan B, Cheng J, Yan P, Ni J, Jiang Y, Wu Q, Jiang X. Concomitant targeting of FLT3 and SPHK1 exerts synergistic cytotoxicity in FLT3-ITD + acute myeloid leukemia by inhibiting β-catenin activity via the PP2A-GSK3β axis. Cell Commun Signal 2024; 22:391. [PMID: 39113090 PMCID: PMC11304842 DOI: 10.1186/s12964-024-01774-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 08/01/2024] [Indexed: 08/11/2024] Open
Abstract
BACKGROUND Approximately 25-30% of patients with acute myeloid leukemia (AML) have FMS-like receptor tyrosine kinase-3 (FLT3) mutations that contribute to disease progression and poor prognosis. Prolonged exposure to FLT3 tyrosine kinase inhibitors (TKIs) often results in limited clinical responses due to diverse compensatory survival signals. Therefore, there is an urgent need to elucidate the mechanisms underlying FLT3 TKI resistance. Dysregulated sphingolipid metabolism frequently contributes to cancer progression and a poor therapeutic response. However, its relationship with TKI sensitivity in FLT3-mutated AML remains unknown. Thus, we aimed to assess mechanisms of FLT3 TKI resistance in AML. METHODS We performed lipidomics profiling, RNA-seq, qRT-PCR, and enzyme-linked immunosorbent assays to determine potential drivers of sorafenib resistance. FLT3 signaling was inhibited by sorafenib or quizartinib, and SPHK1 was inhibited by using an antagonist or via knockdown. Cell growth and apoptosis were assessed in FLT3-mutated and wild-type AML cell lines via Cell counting kit-8, PI staining, and Annexin-V/7AAD assays. Western blotting and immunofluorescence assays were employed to explore the underlying molecular mechanisms through rescue experiments using SPHK1 overexpression and exogenous S1P, as well as inhibitors of S1P2, β-catenin, PP2A, and GSK3β. Xenograft murine model, patient samples, and publicly available data were analyzed to corroborate our in vitro results. RESULTS We demonstrate that long-term sorafenib treatment upregulates SPHK1/sphingosine-1-phosphate (S1P) signaling, which in turn positively modulates β-catenin signaling to counteract TKI-mediated suppression of FLT3-mutated AML cells via the S1P2 receptor. Genetic or pharmacological inhibition of SPHK1 potently enhanced the TKI-mediated inhibition of proliferation and apoptosis induction in FLT3-mutated AML cells in vitro. SPHK1 knockdown enhanced sorafenib efficacy and improved survival of AML-xenografted mice. Mechanistically, targeting the SPHK1/S1P/S1P2 signaling synergizes with FLT3 TKIs to inhibit β-catenin activity by activating the protein phosphatase 2 A (PP2A)-glycogen synthase kinase 3β (GSK3β) pathway. CONCLUSIONS These findings establish the sphingolipid metabolic enzyme SPHK1 as a regulator of TKI sensitivity and suggest that combining SPHK1 inhibition with TKIs could be an effective approach for treating FLT3-mutated AML.
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MESH Headings
- fms-Like Tyrosine Kinase 3/genetics
- fms-Like Tyrosine Kinase 3/metabolism
- fms-Like Tyrosine Kinase 3/antagonists & inhibitors
- Humans
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/pathology
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/metabolism
- Glycogen Synthase Kinase 3 beta/metabolism
- Glycogen Synthase Kinase 3 beta/genetics
- beta Catenin/metabolism
- beta Catenin/genetics
- Phosphotransferases (Alcohol Group Acceptor)/metabolism
- Phosphotransferases (Alcohol Group Acceptor)/genetics
- Phosphotransferases (Alcohol Group Acceptor)/antagonists & inhibitors
- Animals
- Mice
- Protein Phosphatase 2/metabolism
- Protein Phosphatase 2/genetics
- Protein Phosphatase 2/antagonists & inhibitors
- Cell Line, Tumor
- Sorafenib/pharmacology
- Apoptosis/drug effects
- Protein Kinase Inhibitors/pharmacology
- Signal Transduction/drug effects
- Cell Proliferation/drug effects
- Drug Synergism
- Xenograft Model Antitumor Assays
- Drug Resistance, Neoplasm/drug effects
- Drug Resistance, Neoplasm/genetics
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Affiliation(s)
- Ling Jiang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yu Zhao
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Department of Hematology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Fang Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yun Huang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yujiao Zhang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Baoyi Yuan
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiaying Cheng
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ping Yan
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jinle Ni
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | | | - Quan Wu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xuejie Jiang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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Nishida S, Matovelo SA, Kajimoto T, Nakamura SI, Okada T. Extracellular α-synuclein impairs sphingosine 1-phosphate receptor type 3 (S1PR3)-regulated lysosomal delivery of cathepsin D in HeLa cells. Genes Cells 2024; 29:207-216. [PMID: 38163647 DOI: 10.1111/gtc.13093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/16/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
α-Synuclein (α-Syn)-positive intracellular fibrillar protein deposits, known as Lewy bodies, are thought to be involved in the pathogenesis of Parkinson's disease (PD). Although recent lines of evidence suggested that extracellular α-Syn secreted from pathogenic neurons contributes to the propagation of PD pathology, the precise mechanism of action remains unclear. We have reported that extracellular α-Syn caused sphingosine 1-phosphate (S1P) receptor type 1 (S1PR1) uncoupled from Gi and inhibited downstream G-protein signaling in SH-SY5Y cells, although its patho/physiological role remains to be clarified. Here we show that extracellular α-Syn caused S1P receptor type 3 (S1PR3) uncoupled from G protein in HeLa cells. Further studies indicated that α-Syn treatment reduced cathepsin D activity while enhancing the secretion of immature pro-cathepsin D into cell culture medium, suggesting that lysosomal delivery of cathepsin D was disturbed. Actually, extracellular α-Syn attenuated the retrograde trafficking of insulin-like growth factor-II/mannose 6-phosphate (IGF-II/M6P) receptor, which is under the regulation of S1PR3. These findings shed light on the understanding of dissemination of the PD pathology, that is, the mechanism underlying how extracellular α-Syn secreted from pathogenic cells causes lysosomal dysfunction of the neighboring healthy cells, leading to propagation of the disease.
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Affiliation(s)
- Susumu Nishida
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shubi Ambwene Matovelo
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
- Department of Biochemistry and Physiology, School of Medicine and Dentistry, The University of Dodoma, Dodoma, Tanzania
| | - Taketoshi Kajimoto
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shun-Ichi Nakamura
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Taro Okada
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
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Vettorazzi M, Díaz I, Angelina E, Salido S, Gutierrez L, Alvarez SE, Cobo J, Enriz RD. Second generation of pyrimidin-quinolone hybrids obtained from virtual screening acting as sphingosine kinase 1 inhibitors and potential anticancer agents. Bioorg Chem 2024; 144:107112. [PMID: 38237390 DOI: 10.1016/j.bioorg.2024.107112] [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: 10/27/2023] [Revised: 12/22/2023] [Accepted: 01/08/2024] [Indexed: 02/17/2024]
Abstract
We report here the virtual screening design, synthesis and activity of eight new inhibitors of SphK1. For this study we used a pre-trained Graph Convolutional Network (GCN) combined with docking calculations. This exploratory analysis proposed nine compounds from which eight displayed significant inhibitory effect against sphingosine kinase 1 (SphK1) demonstrating a high level of efficacy for this approach. Four of these compounds also displayed anticancer activity against different tumor cell lines, and three of them (5), (6) and (7) have shown a wide inhibitory action against many of the cancer cell line tested, with GI50 below 5 µM, being (5) the most promising with TGI below 10 µM for the half of cell lines. Our results suggest that the three most promising compounds reported here are the pyrimidine-quinolone hybrids (1) and (6) linked by p-aminophenylsulfanyl and o-aminophenol fragments respectively, and (8) without such aryl linker. We also performed an exhaustive study about the molecular interactions that stabilize the different ligands at the binding site of SphK1. This molecular modeling analysis was carried out by using combined techniques: docking calculations, MD simulations and QTAIM analysis. In this study we also included PF543, as reference compound, in order to better understand the molecular behavior of these ligands at the binding site of SphK1.These results provide useful information for the design of new inhibitors of SphK1 possessing these structural scaffolds.
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Affiliation(s)
- Marcela Vettorazzi
- Universidad Nacional de San Luis, Facultad de Química, Bioquímica y Farmacia, Ejercito de los Andes 950, (5700) San Luis, Argentina; Instituto Multidisciplinario de Investigaciones Biológicas (IMIBIO-SL), Ejercito de los Andes 950, (5700) San Luis, Argentina
| | - Iván Díaz
- Universidad de Jaén, Departamento de Química Inorgánica y Orgánica, Campus Las Lagunillas s/n, 23071 Jaén, Spain
| | - Emilio Angelina
- Universidad Nacional del Nordeste, Facultad de Ciencias Exactas y Naturales y Agrimensura, Departamento de Química, Área de Química Física, Laboratorio de Estructura Molecular y Propiedades, Avda. Libertad 5460, 3400 Corrientes, Argentina
| | - Sofía Salido
- Universidad de Jaén, Departamento de Química Inorgánica y Orgánica, Campus Las Lagunillas s/n, 23071 Jaén, Spain
| | - Lucas Gutierrez
- Universidad Nacional de San Luis, Facultad de Química, Bioquímica y Farmacia, Ejercito de los Andes 950, (5700) San Luis, Argentina; Instituto Multidisciplinario de Investigaciones Biológicas (IMIBIO-SL), Ejercito de los Andes 950, (5700) San Luis, Argentina
| | - Sergio E Alvarez
- Universidad Nacional de San Luis, Facultad de Química, Bioquímica y Farmacia, Ejercito de los Andes 950, (5700) San Luis, Argentina; Instituto Multidisciplinario de Investigaciones Biológicas (IMIBIO-SL), Ejercito de los Andes 950, (5700) San Luis, Argentina
| | - Justo Cobo
- Universidad de Jaén, Departamento de Química Inorgánica y Orgánica, Campus Las Lagunillas s/n, 23071 Jaén, Spain.
| | - Ricardo D Enriz
- Universidad Nacional de San Luis, Facultad de Química, Bioquímica y Farmacia, Ejercito de los Andes 950, (5700) San Luis, Argentina; Instituto Multidisciplinario de Investigaciones Biológicas (IMIBIO-SL), Ejercito de los Andes 950, (5700) San Luis, Argentina.
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Wang F, Tian Y, Huang L, Qin T, Ma W, Pei C, Xu B, Han H, Liu X, Pan P, Yu X, Chang Q, Wang Y, Zhang S, Pei X. Roles of follicle stimulating hormone and sphingosine 1-phosphate co-administered in the process in mouse ovarian vitrification and transplantation. J Ovarian Res 2023; 16:173. [PMID: 37620938 PMCID: PMC10463983 DOI: 10.1186/s13048-023-01206-1] [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: 03/01/2023] [Accepted: 06/16/2023] [Indexed: 08/26/2023] Open
Abstract
Some major challenges of ovarian tissue vitrification and transplantation include follicle apoptosis induced by cryopreservation and ischemia-reperfusion injury, as well as ovarian follicle loss during post-transplantation. This research aimed to investigate the protective effects and underlying mechanisms of follicle-stimulating hormone (FSH) and Sphingosine-1-phosphate (S1P) on vitrified and post-transplantation ovaries. Ovaries from 21-day-old mice were cryopreservation by vitrification with 0.3 IU/mL FSH, 2 µM S1P, and 0.3 IU/mL FSH + 2 µM S1P, respectively, for follicle counting and detection of apoptosis-related indicators. The results demonstrated that FSH and S1P co-intervention during the vitrification process could preserve the primordial follicle pool and inhibit follicular atresia by suppressing cell apoptosis. The thawed ovaries were transplanted under the renal capsule of 6-8 week-old ovariectomized mice and removed 24 h or 7 days after transplantation. The results indicated that FSH and S1P co-intervention can inhibit apoptosis and autophagy in ovaries at 24 h after transplantation, and promote follicle survival by up-regulating Cx37 and Cx43 expression, enhanced angiogenesis in transplanted ovaries by promoting VEGF expression, as well as increased the E2 levels to restore ovarian endocrine function at 7 days after transplantation. The hypoxia and ischemia cell model was established by CoCl2 treatment for hypoxia in human granulosa-like tumor cell line (KGN), as well as serum-free culture system was used for ischemia. The results confirmed that ischemia-hypoxia-induced apoptosis in ovarian granulosa cells was reduced by FSH and S1P co-intervention, and granulosa cell autophagy was inhibited by up-regulating the AKT/mTOR signaling pathway. In summary, co-administration of FSH and S1P can maintain ovarian survival during ovarian vitrification and increase follicle survival and angiogenesis after transplantation.
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Affiliation(s)
- Fei Wang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, 750004, China
| | - Yuan Tian
- General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Liwen Huang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, 750004, China
| | - Tian Qin
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, 750004, China
| | - Wenye Ma
- Centre of Assisted Reproduction, Maternal and Children Health Care Hospital of Yinchuan, Yinchuan, China
| | - Chengbin Pei
- General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Bo Xu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, 750004, China
| | - Hang Han
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, 750004, China
| | - Xinrui Liu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, 750004, China
| | - Pengge Pan
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, 750004, China
| | - Xiaoli Yu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, 750004, China
| | - Qin Chang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, 750004, China
| | - Yanrong Wang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, 750004, China.
| | - Shuya Zhang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, 750004, China.
| | - Xiuying Pei
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, 750004, China.
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Koutsogiannis Z, Mina JGM, Suman R, Denny PW. Assessment of Toxoplasma gondii lytic cycle and the impact of a gene deletion using 3D label-free optical diffraction holotomography. Front Cell Infect Microbiol 2023; 13:1237594. [PMID: 37600951 PMCID: PMC10433743 DOI: 10.3389/fcimb.2023.1237594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 07/17/2023] [Indexed: 08/22/2023] Open
Abstract
Toxoplasma gondii is a widespread single-celled intracellular eukaryotic apicomplexan protozoan parasite primarily associated with mammalian foetal impairment and miscarriage, including in humans. Is estimated that approximately one third of the human population worldwide is infected by this parasite. Here we used cutting-edge, label-free 3D quantitative optical diffraction holotomography to capture and evaluate the Toxoplasma lytic cycle (invasion, proliferation and egress) in real-time based on the refractive index distribution. In addition, we used this technology to analyse an engineered CRISPR-Cas9 Toxoplasma mutant to reveal differences in cellular physical properties when compared to the parental line. Collectively, these data support the use of holotomography as a powerful tool for the study of protozoan parasites and their interactions with their host cells.
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Affiliation(s)
- Zisis Koutsogiannis
- Department of Biosciences, Lower Mountjoy, University of Durham, Durham, United Kingdom
| | - John G. M. Mina
- Department of Biosciences, Lower Mountjoy, University of Durham, Durham, United Kingdom
| | | | - Paul William Denny
- Department of Biosciences, Lower Mountjoy, University of Durham, Durham, United Kingdom
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7
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Acunha T, Rocha BA, Nardini V, Barbosa F, Faccioli LH. Lipidomic profiling of the Brazilian yellow scorpion venom: new insights into inflammatory responses following Tityus serrulatus envenomation. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2023; 86:283-295. [PMID: 36895096 DOI: 10.1080/15287394.2023.2188896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Due to the high prevalence and clinical relevance, scorpionism is a critical public health issue in several Brazilian regions. Tityus serrulatus, commonly known as the Brazilian yellow scorpion, is the most venomous genus found in Brazilian fauna and associated with severe clinical manifestations such as localized pain, hypertension, sweating, tachycardia and complex hyperinflammatory responses. In general, T. serrulatus venom contains a complex mixture of active compounds, including proteins, peptides, and amino acids. Although knowledge of the protein fractions of scorpion venom is available, venom lipid components are not yet comprehensively known. The aim of the present study was to determine and characterize the lipid constituents/profile of the T. serratus venom utilizing liquid chromatography coupled with high-resolution mass spectrometry. Lipid species (164 in total) belonging to 3 different lipid categories, glycerophospholipids, sphingolipids, and glycerolipids, were identified. A further search on MetaCore/MetaDrug platform, which is based upon a manually curated database of molecular interactions, molecular pathways, gene-disease associations, chemical metabolism, and toxicity information, exhibited several metabolic pathways for 24 of previously identified lipid species, including activation of nuclear factor kappa B and oxidative stress pathways. Further several bioactive compounds, such as plasmalogens, lyso-platelet-activating factors, and sphingomyelins, associated with systemic responses triggered by T. serrulatus envenomation were detected. Finally, lipidomic data presented provide advanced and valuable information to better comprehend the mechanisms underlying the complex pathophysiology induced by T. serrulatus envenomation.
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Affiliation(s)
| | | | | | - Fernando Barbosa
- Departamento de Análise Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Lúcia Helena Faccioli
- Departamento de Análise Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
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Seki D, Errerd T, Hall LJ. The role of human milk fats in shaping neonatal development and the early life gut microbiota. MICROBIOME RESEARCH REPORTS 2023; 2:8. [PMID: 38047278 PMCID: PMC10688791 DOI: 10.20517/mrr.2023.09] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/17/2023] [Accepted: 03/27/2023] [Indexed: 12/05/2023]
Abstract
Human breast milk (HBM) is the main source of nutrition for neonates across the critical early-life developmental period. The highest demand for energy is due to rapid neurophysiological expansion post-delivery, which is largely met by human milk lipids (HMLs). These HMLs also play a prebiotic role and potentially promote the growth of certain commensal bacteria, which, via HML digestion, supports the additional transfer of energy to the infant. In tandem, HMLs can also exert bactericidal effects against a variety of opportunistic pathogens, which contributes to overall colonisation resistance. Such interactions are pivotal for sustaining homeostatic relationships between microorganisms and their hosts. However, the underlying molecular mechanisms governing these interactions remain poorly understood. This review will explore the current research landscape with respect to HMLs, including compositional considerations and impact on the early life gut microbiota. Recent papers in this field will also be discussed, including a final perspective on current knowledge gaps and potential next research steps for these important but understudied breast milk components.
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Affiliation(s)
- David Seki
- Chair of Intestinal Microbiome, School of Life Sciences, ZIEL-Institute for Food & Health, Technical University of Munich, Freising 85354, Germany
| | - Theresa Errerd
- Chair of Intestinal Microbiome, School of Life Sciences, ZIEL-Institute for Food & Health, Technical University of Munich, Freising 85354, Germany
| | - Lindsay J Hall
- Chair of Intestinal Microbiome, School of Life Sciences, ZIEL-Institute for Food & Health, Technical University of Munich, Freising 85354, Germany
- Gut Microbes & Health, Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
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Kang Y, Sundaramoorthy P, Gasparetto C, Feinberg D, Fan S, Long G, Sellars E, Garrett A, Tuchman SA, Reeves BN, Li Z, Liu B, Ogretmen B, Maines L, Ben-Yair VK, Smith C, Plasse T. Phase I study of opaganib, an oral sphingosine kinase 2-specific inhibitor, in relapsed and/or refractory multiple myeloma. Ann Hematol 2023; 102:369-383. [PMID: 36460794 DOI: 10.1007/s00277-022-05056-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 11/13/2022] [Indexed: 12/04/2022]
Abstract
Multiple myeloma (MM) remains an incurable disease and there is an unmet medical need for novel therapeutic drugs that do not share similar mechanisms of action with currently available agents. Sphingosine kinase 2 (SK2) is an innovative molecular target for anticancer therapy. We previously reported that treatment with SK2 inhibitor opaganib inhibited myeloma tumor growth in vitro and in vivo in a mouse xenograft model. In the current study, we performed a phase I study of opaganib in patients with relapsed/refractory multiple myeloma (RRMM). Thirteen patients with RRMM previously treated with immunomodulatory agents and proteasome inhibitors were enrolled and treated with single-agent opaganib at three oral dosing regimens (250 mg BID, 500 mg BID, or 750 mg BID, 28 days as a cycle). Safety and maximal tolerated dose (MTD) were determined. Pharmacokinetics, pharmacodynamics, and correlative studies were also performed. Opaganib was well tolerated up to a dose of 750 mg BID. The most common possibly related adverse event (AE) was decreased neutrophil counts. There were no serious AEs considered to be related to opaganib. MTD was determined as at least 750 mg BID. On an intent-to-treat basis, one patient (7.7%) in the 500 mg BID dose cohort showed a very good partial response, and one other patient (7.7%) achieved stable disease for 3 months. SK2 is an innovative molecular target for antimyeloma therapy. The first-in-class SK2 inhibitor opaganib is generally safe for administration to RRMM patients, and has potential therapeutic activity in these patients. Clinicaltrials.gov: NCT02757326.
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Affiliation(s)
- Yubin Kang
- Division of Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, 2400 Pratt Street, Suite 5000, Durham, NC, DUMC 396127710, USA.
| | - Pasupathi Sundaramoorthy
- Division of Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, 2400 Pratt Street, Suite 5000, Durham, NC, DUMC 396127710, USA
| | - Cristina Gasparetto
- Division of Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, 2400 Pratt Street, Suite 5000, Durham, NC, DUMC 396127710, USA
| | - Daniel Feinberg
- Division of Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, 2400 Pratt Street, Suite 5000, Durham, NC, DUMC 396127710, USA
| | - Shengjun Fan
- Division of Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, 2400 Pratt Street, Suite 5000, Durham, NC, DUMC 396127710, USA
| | - Gwynn Long
- Division of Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, 2400 Pratt Street, Suite 5000, Durham, NC, DUMC 396127710, USA
| | - Emily Sellars
- Division of Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, 2400 Pratt Street, Suite 5000, Durham, NC, DUMC 396127710, USA
| | - Anderson Garrett
- Division of Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, 2400 Pratt Street, Suite 5000, Durham, NC, DUMC 396127710, USA
| | - Sascha A Tuchman
- Division of Hematology, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Brandi N Reeves
- Division of Hematology, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Zhiguo Li
- Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, NC, USA
| | - Bei Liu
- Division of Hematology, Department of Internal Medicine, Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Besim Ogretmen
- Department of Biochemistry and Molecular Biology, and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
| | - Lynn Maines
- Apogee Biotechnology Corporation, Hummelstown, PA, USA
| | | | - Charles Smith
- Apogee Biotechnology Corporation, Hummelstown, PA, USA
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10
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Wilkerson JL, Basu SK, Stiles MA, Prislovsky A, Grambergs RC, Nicholas SE, Karamichos D, Allegood JC, Proia RL, Mandal N. Ablation of Sphingosine Kinase 1 Protects Cornea from Neovascularization in a Mouse Corneal Injury Model. Cells 2022; 11:cells11182914. [PMID: 36139489 PMCID: PMC9497123 DOI: 10.3390/cells11182914] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/03/2022] [Accepted: 09/10/2022] [Indexed: 11/24/2022] Open
Abstract
The purpose of this study was to investigate the role of sphingosine kinase 1 (SphK1), which generates sphingosine-1-phosphate (S1P), in corneal neovascularization (NV). Wild-type (WT) and Sphk1 knockout (Sphk1−/−) mice received corneal alkali-burn treatment to induce corneal NV by placing a 2 mm round piece of Whatman No. 1 filter paper soaked in 1N NaOH on the center of the cornea for 20 s. Corneal sphingolipid species were extracted and identified using liquid chromatography/mass spectrometry (LC/MS). The total number of tip cells and those positive for ethynyl deoxy uridine (EdU) were quantified. Immunocytochemistry was done to examine whether pericytes were present on newly forming blood vessels. Cytokine signaling and angiogenic markers were compared between the two groups using multiplex assays. Data were analyzed using appropriate statistical tests. Here, we show that ablation of SphK1 can significantly reduce NV invasion in the cornea following injury. Corneal sphingolipid analysis showed that total levels of ceramides, monohexosyl ceramides (HexCer), and sphingomyelin were significantly elevated in Sphk−/− corneas compared to WT corneas, with a comparable level of sphingosine among the two genotypes. The numbers of total and proliferating endothelial tip cells were also lower in the Sphk1−/− corneas following injury. This study underscores the role of S1P in post-injury corneal NV and raises further questions about the roles played by ceramide, HexCer, and sphingomyelin in regulating corneal NV. Further studies are needed to unravel the role played by bioactive sphingolipids in maintenance of corneal transparency and clear vision.
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Affiliation(s)
- Joseph L. Wilkerson
- Dean A. McGee Eye Institute, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT 84112, USA
| | - Sandip K. Basu
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Megan A. Stiles
- Dean A. McGee Eye Institute, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Amanda Prislovsky
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Richard C. Grambergs
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
| | - Sarah E. Nicholas
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
- Department of Pharmaceutical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Dimitrios Karamichos
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
- Department of Pharmaceutical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Jeremy C. Allegood
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, USA
| | - Richard L. Proia
- Genetics of Development and Disease Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Nawajes Mandal
- Dean A. McGee Eye Institute, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
- Departments of Anatomy and Neurobiology, and Pharmaceutical Sciences, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA
- Memphis VA Medical Center, Memphis, TN 38104, USA
- Correspondence:
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11
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Abeyrathne EDNS, Nam KC, Huang X, Ahn DU. Egg yolk lipids: separation, characterization, and utilization. Food Sci Biotechnol 2022; 31:1243-1256. [PMID: 35992319 PMCID: PMC9385935 DOI: 10.1007/s10068-022-01138-4] [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: 02/14/2022] [Revised: 06/22/2022] [Accepted: 07/12/2022] [Indexed: 11/04/2022] Open
Abstract
Egg yolk contains very high levels of lipids, which comprise 33% of whole egg yolk. Although triglyceride is the main lipid, egg yolk is the richest source of phospholipids and cholesterol in nature. The egg yolk phospholipids have a unique composition with high levels of phosphatidylcholine followed by phosphatidylethanolamine, sphingomyelin, plasmalogen, and phosphatidylinositol. All the egg yolk lipids are embedded inside the HDL and LDL micelles or granular particles. Egg yolk lipids can be easily extracted using solvents or supercritical extraction methods but their commercial applications of egg yolk lipids are limited. Egg yolk lipids have excellent potential as a food ingredient or cosmeceutical, pharmaceutical, and nutraceutical agents because they have excellent functional and biological characteristics. This review summarizes the current knowledge on egg yolk lipids' extraction methods and functions and discusses their current and future use, which will be important to increase the use and value of the egg.
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Affiliation(s)
- Edirisingha Dewage Nalaka Sandun Abeyrathne
- Department of Animal Science, Uva Wellassa University, Badulla, 90000 Sri Lanka
- Department of Animal Science & Technology, Suncheon National University, Suncheon, 57922 Korea
| | - Ki-Chang Nam
- Department of Animal Science & Technology, Suncheon National University, Suncheon, 57922 Korea
| | - Xi Huang
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070 Hubei People’s Republic of China
| | - Dong Uk Ahn
- Department of Animal Science, Iowa State University, Ames, IA 50011 USA
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12
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Choi B, Kim JE, Park SO, Kim EY, Oh S, Choi H, Yoon D, Min HJ, Kim HR, Chang EJ. Sphingosine-1-phosphate hinders the osteogenic differentiation of dental pulp stem cells in association with AKT signaling pathways. Int J Oral Sci 2022; 14:21. [PMID: 35459199 PMCID: PMC9033766 DOI: 10.1038/s41368-022-00173-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 02/24/2022] [Accepted: 02/24/2022] [Indexed: 11/16/2022] Open
Abstract
Sphingosine-1-phosphate (S1P) is an important lipid mediator that regulates a diverse range of intracellular cell signaling pathways that are relevant to tissue engineering and regenerative medicine. However, the precise function of S1P in dental pulp stem cells (DPSCs) and its osteogenic differentiation remains unclear. We here investigated the function of S1P/S1P receptor (S1PR)-mediated cellular signaling in the osteogenic differentiation of DPSCs and clarified the fundamental signaling pathway. Our results showed that S1P-treated DPSCs exhibited a low rate of differentiation toward the osteogenic phenotype in association with a marked reduction in osteogenesis-related gene expression and AKT activation. Of note, both S1PR1/S1PR3 and S1PR2 agonists significantly downregulated the expression of osteogenic genes and suppressed AKT activation, resulting in an attenuated osteogenic capacity of DPSCs. Most importantly, an AKT activator completely abrogated the S1P-mediated downregulation of osteoblastic markers and partially prevented S1P-mediated attenuation effects during osteogenesis. Intriguingly, the pro-inflammatory TNF-α cytokine promoted the infiltration of macrophages toward DPSCs and induced S1P production in both DPSCs and macrophages. Our findings indicate that the elevation of S1P under inflammatory conditions suppresses the osteogenic capacity of the DPSCs responsible for regenerative endodontics.
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Affiliation(s)
- Bongkun Choi
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji-Eun Kim
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Si-On Park
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eun-Young Kim
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Soyoon Oh
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyuksu Choi
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dohee Yoon
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyo-Jin Min
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyung-Ryong Kim
- Department of Pharmacology, College of Dentistry, Jeonbuk National University, Jeonju, Korea.
| | - Eun-Ju Chang
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea. .,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. .,Department of Biochemistry and Molecular Biology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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13
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Matsuzaki E, Hirose H, Fujimasa S, Yoshimoto S, Yanagi T, Matsumoto K, Nikaido M, Minakami M, Matsumoto N, Anan H. Sphingosine-1-phosphate receptor 2 agonist induces bone formation in rat apicoectomy and alveolar bone defect model. J Dent Sci 2022; 17:787-794. [PMID: 35756763 PMCID: PMC9201516 DOI: 10.1016/j.jds.2021.10.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/04/2021] [Indexed: 01/01/2023] Open
Affiliation(s)
- Etsuko Matsuzaki
- Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
- Oral Medicine Research Center, Fukuoka Dental College, Fukuoka, Japan
- Corresponding author. Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193, Japan.
| | - Haruna Hirose
- Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
| | - Seishiro Fujimasa
- Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
| | - Shohei Yoshimoto
- Oral Medicine Research Center, Fukuoka Dental College, Fukuoka, Japan
- Section of Pathology, Department of Morphological Biology, Division of Biomedical Sciences, Fukuoka Dental College, Fukuoka, Japan
| | - Tsukasa Yanagi
- Section of Oral Implantology, Department of Oral Rehabilitation, Fukuoka Dental College, Fukuoka, Japan
| | - Kazuma Matsumoto
- Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
| | - Misaki Nikaido
- Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
| | - Masahiko Minakami
- Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
| | - Noriyoshi Matsumoto
- Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
| | - Hisashi Anan
- Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
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14
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Serine Palmitoyltransferase Gene Silencing Prevents Ceramide Accumulation and Insulin Resistance in Muscles in Mice Fed a High-Fat Diet. Cells 2022; 11:cells11071123. [PMID: 35406688 PMCID: PMC8997855 DOI: 10.3390/cells11071123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/15/2022] [Accepted: 03/24/2022] [Indexed: 02/04/2023] Open
Abstract
Skeletal muscles account for ~80% of insulin-stimulated glucose uptake and play a key role in lipid metabolism. Consumption of a high-fat diet (HFD) contributes to metabolic changes in muscles, including the development of insulin resistance. The studies carried out to date indicate that the accumulation of biologically active lipids, such as long-chain acyl-CoA, diacylglycerols and ceramides, play an important role in the development of insulin resistance in skeletal muscles. Unfortunately, it has not yet been clarified which of these lipid groups plays the dominant role in inducing these disorders. In order to explore this topic further, we locally silenced the gene encoding serine palmitoyltransferase (SPT) in the gastrocnemius muscle of animals with HFD-induced insulin resistance. This enzyme is primarily responsible for the first step of de novo ceramide biosynthesis. The obtained results confirm that the HFD induces the development of whole-body insulin resistance, which results in inhibition of the insulin pathway. This is associated with an increased level of biologically active lipids in the muscles. Our results also demonstrate that silencing the SPT gene with the shRNA plasmid reduces the accumulation of ceramides in gastrocnemius muscle, which, in turn, boosts the activity of the insulin signaling pathway. Furthermore, inhibition of ceramide synthesis does not significantly affect the content of other lipids, which suggests the leading role of ceramide in the lipid-related induction of skeletal muscle insulin resistance.
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15
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Revealing 2-Dimethylhydrazino-2-alkyl alkynyl sphingosine derivatives as Sphingosine Kinase 2 inhibitors: some hints on the structural basis for selective inhibition. Bioorg Chem 2022; 121:105668. [DOI: 10.1016/j.bioorg.2022.105668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 02/02/2022] [Accepted: 02/07/2022] [Indexed: 12/29/2022]
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16
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Liu L, Cai B, Zhang X, Tan J, Huang J, Zhou C. Differential transcriptional profiles of human cumulus granulosa cells in patients with diminished ovarian reserve. Arch Gynecol Obstet 2022; 305:1605-1614. [DOI: 10.1007/s00404-022-06399-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 01/04/2022] [Indexed: 11/02/2022]
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17
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Korbelik M, Szulc ZM, Bielawska A, Separovic D. Controlling Immunoregulatory Cell Activity for Effective Photodynamic Therapy of Cancer. Methods Mol Biol 2022; 2451:569-577. [PMID: 35505033 DOI: 10.1007/978-1-0716-2099-1_28] [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] [Indexed: 06/14/2023]
Abstract
Recently, it has become clear that a prerequisite requirement for most cancer therapies is controlling the negative impact of the activity of immunosuppressory cell populations. It is therefore of a considerable interest to develop treatments for containing the operation of major myeloid and lymphoid immunoregulatory cell populations. We have reported that acid ceramidase inhibitor LCL521 effectively overrides the activity of immunoregulatory T cells (Tregs) and myeloid-derived suppressor cells (MDSCs) engaged in the context of tumor response to photodynamic therapy (PDT). The present communication dissects and describes in detail the procedure for the use of LCL521 as an adjuvant to PDT for improved cure rates of treated tumors based on restricting the activity of immunoregulatory cell populations.
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Affiliation(s)
- Mladen Korbelik
- Department of Integrative Oncology, BC Cancer Research Centre, British Columbia Cancer Agency, Vancouver, BC, Canada.
| | - Zdzislaw M Szulc
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Alicja Bielawska
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Duska Separovic
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI, USA
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18
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Qi T, Li L, Weidong T. The Role of Sphingolipid Metabolism in Bone Remodeling. Front Cell Dev Biol 2021; 9:752540. [PMID: 34912800 PMCID: PMC8666436 DOI: 10.3389/fcell.2021.752540] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/11/2021] [Indexed: 02/05/2023] Open
Abstract
Emerging studies of bioactive lipids have made many exciting discoveries in recent years. Sphingolipids and their metabolites perform a wide variety of cellular functions beyond energy metabolism. Emerging evidence based on genetically manipulated mouse models and molecular biology allows us to obtain new insights into the role sphingolipid played on skeletal remodeling. This review summarizes studies or understandings of the crosstalk between sphingomyelin, ceramide, and sphingosine-1-phosphate (S1P) of sphingolipids family and the cells, especially osteoblasts and osteoclasts of the bone through which bone is remodeled during life constantly. This review also shows agonists and antagonists of S1P as possible therapeutic options and opportunities on bone diseases.
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Affiliation(s)
- Tang Qi
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Engineering Research Center of Oral Translational Medicine, Ministry of Education, National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Liao Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Engineering Research Center of Oral Translational Medicine, Ministry of Education, National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Tian Weidong
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Engineering Research Center of Oral Translational Medicine, Ministry of Education, National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, China
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19
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Okada T, Nishida S, Zhang L, Ibrahim Mohamed NN, Wang T, Ijuin T, Kajimoto T, Nakamura SI. Constitutive activation of S1P receptors at the trans-Golgi network is required for surface transport carrier formation. iScience 2021; 24:103351. [PMID: 34805799 PMCID: PMC8590068 DOI: 10.1016/j.isci.2021.103351] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 10/18/2021] [Accepted: 10/22/2021] [Indexed: 11/10/2022] Open
Abstract
The importance of the G-protein βγ subunits in the regulation of cargo transport from the trans-Golgi network (TGN) to the plasma membrane (PM) is well accepted; however, the molecular mechanism underlying the G-protein activation at the TGN remains unclear. We show here that sphingosine 1-phosphate (S1P) receptors at the PM were trafficked to the TGN in response to a surface transport cargo, temperature-sensitive vesicular stomatitis virus glycoprotein tagged with green fluorescent protein accumulation in the Golgi. The receptor internalization occurred in an S1P-independent manner but required phosphorylation by G-protein receptor kinase 2 and β-arrestin association before internalization. Continuously activated S1P receptors in a manner dependent on S1P at the TGN kept transmitting G-protein signals including the βγ subunits supply necessary for transport carrier formation at the TGN destined for the PM. S1P receptors traffic from the PM to Golgi in a surface cargo-dependent manner S1PR trafficking follows GRK2-dependent phosphorylation and β-arrestin binding S1PRs at the Golgi are continuously activated by S1P while sending G-protein signals S1PR/Gβγ signals at the Golgi are indispensable for surface transport carrier formation
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Affiliation(s)
- Taro Okada
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Susumu Nishida
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Lifang Zhang
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Nesma Nabil Ibrahim Mohamed
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan.,Department of Agricultural Biochemistry, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
| | - Tianyou Wang
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Takeshi Ijuin
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Taketoshi Kajimoto
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Shun-Ichi Nakamura
- Division of Biochemistry, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
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20
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Xu G, Yang Z, Sun Y, Dong H, Ma J. Interaction of microRNAs with sphingosine kinases, sphingosine-1 phosphate, and sphingosine-1 phosphate receptors in cancer. Discov Oncol 2021; 12:33. [PMID: 35201458 PMCID: PMC8777508 DOI: 10.1007/s12672-021-00430-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 09/03/2021] [Indexed: 12/12/2022] Open
Abstract
Sphingosine-1-phosphate (S1P), a pleiotropic lipid mediator, participates in various cellular processes during tumorigenesis, including cell proliferation, survival, drug resistance, metastasis, and angiogenesis. S1P is formed by two sphingosine kinases (SphKs), SphK1 and SphK2. The intracellularly produced S1P is delivered to the extracellular space by ATP-binding cassette (ABC) transporters and spinster homolog 2 (SPNS2), where it binds to five transmembrane G protein-coupled receptors to mediate its oncogenic functions (S1PR1-S1PR5). MicroRNAs (miRNAs) are small non-coding RNAs, 21-25 nucleotides in length, that play numerous crucial roles in cancer, such as tumor initiation, progression, apoptosis, metastasis, and angiogenesis via binding to the 3'-untranslated region (3'-UTR) of the target mRNA. There is growing evidence that various miRNAs modulate tumorigenesis by regulating the expression of SphKs, and S1P receptors. We have reviewed various roles of miRNAs, SphKs, S1P, and S1P receptors (S1PRs) in malignancies and how notable miRNAs like miR-101, miR-125b, miR-128, and miR-506, miR-1246, miR-21, miR-126, miR499a, miR20a-5p, miR-140-5p, miR-224, miR-137, miR-183-5p, miR-194, miR181b, miR136, and miR-675-3p, modulate S1P signaling. These tumorigenesis modulating miRNAs are involved in different cancers including breast, gastric, hepatocellular carcinoma, prostate, colorectal, cervical, ovarian, and lung cancer via cell proliferation, invasion, angiogenesis, apoptosis, metastasis, immune evasion, chemoresistance, and chemosensitivity. Therefore, understanding the interaction of SphKs, S1P, and S1P receptors with miRNAs in human malignancies will lead to better insights for miRNA-based cancer therapy.
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Affiliation(s)
- Guangmeng Xu
- Department of Colorectal Surgery, The Second Hospital of Jilin University, Changchun, 130000 China
| | - Zecheng Yang
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun, 130000 China
| | - Yamin Sun
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun, 130000 China
| | - Hongmei Dong
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun, 130000 China
| | - Jingru Ma
- Clinical Laboratory, The Second Hospital of Jilin University, Changchun, 130000 China
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21
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Li G, Kidd J, Gehr TWB, Li PL. Podocyte Sphingolipid Signaling in Nephrotic Syndrome. Cell Physiol Biochem 2021; 55:13-34. [PMID: 33861526 PMCID: PMC8193717 DOI: 10.33594/000000356] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2021] [Indexed: 11/25/2022] Open
Abstract
Podocytes play a vital role in the pathogenesis of nephrotic syndrome (NS), which is clinically characterized by heavy proteinuria, hypoalbuminemia, hyperlipidemia, and peripheral edema. The pathogenesis of NS has evolved through several hypotheses ranging from immune dysregulation theory and increased glomerular permeability theory to the current concept of podocytopathy. Podocytopathy is characterized by dysfunction or depletion of podocytes, which may be caused by unknown permeability factor, genetic disorders, drugs, infections, systemic disorders, and hyperfiltration. Over the last two decades, numerous studies have been done to explore the molecular mechanisms of podocyte injuries or NS and to develop the novel therapeutic strategies targeting podocytopathy for treatment of NS. Recent studies have shown that normal sphingolipid metabolism is essential for structural and functional integrity of podocytes. As a basic component of the plasma membrane, sphingolipids not only support the assembly of signaling molecules and interaction of receptors and effectors, but also mediate various cellular activities, such as apoptosis, proliferation, stress responses, necrosis, inflammation, autophagy, senescence, and differentiation. This review briefly summarizes current evidence demonstrating the regulation of sphingolipid metabolism in podocytes and the canonical or noncanonical roles of podocyte sphingolipid signaling in the pathogenesis of NS and associated therapeutic strategies.
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Affiliation(s)
- Guangbi Li
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Jason Kidd
- Division of Nephrology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Todd W B Gehr
- Division of Nephrology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Pin-Lan Li
- Department of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA,
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22
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Wang J, Chen YL, Li YK, Chen DK, He JF, Yao N. Functions of Sphingolipids in Pathogenesis During Host-Pathogen Interactions. Front Microbiol 2021; 12:701041. [PMID: 34408731 PMCID: PMC8366399 DOI: 10.3389/fmicb.2021.701041] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/21/2021] [Indexed: 12/23/2022] Open
Abstract
Sphingolipids are a class of membrane lipids that serve as vital structural and signaling bioactive molecules in organisms ranging from yeast to animals. Recent studies have emphasized the importance of sphingolipids as signaling molecules in the development and pathogenicity of microbial pathogens including bacteria, fungi, and viruses. In particular, sphingolipids play key roles in regulating the delicate balance between microbes and hosts during microbial pathogenesis. Some pathogens, such as bacteria and viruses, harness host sphingolipids to promote development and infection, whereas sphingolipids from both the host and pathogen are involved in fungus-host interactions. Moreover, a regulatory role for sphingolipids has been described, but their effects on host physiology and metabolism remain to be elucidated. Here, we summarize the current state of knowledge about the roles of sphingolipids in pathogenesis and interactions with host factors, including how sphingolipids modify pathogen and host metabolism with a focus on pathogenesis regulators and relevant metabolic enzymes. In addition, we discuss emerging perspectives on targeting sphingolipids that function in host-microbe interactions as new therapeutic strategies for infectious diseases.
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Affiliation(s)
- Jian Wang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Agriculture, Sun Yat-sen University, Guangzhou, China
| | - Yi-Li Chen
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yong-Kang Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Ding-Kang Chen
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jia-Fan He
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Agriculture, Sun Yat-sen University, Guangzhou, China
| | - Nan Yao
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Agriculture, Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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23
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Redfern LK, Jayasundara N, Singleton DR, Di Giulio RT, Carlson J, Sumner SJ, Gunsch CK. The role of gut microbial community and metabolomic shifts in adaptive resistance of Atlantic killifish (Fundulus heteroclitus) to polycyclic aromatic hydrocarbons. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 776:145955. [PMID: 33647645 PMCID: PMC8294123 DOI: 10.1016/j.scitotenv.2021.145955] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 02/12/2021] [Accepted: 02/13/2021] [Indexed: 05/14/2023]
Abstract
Altered gut microbiomes may play a role in rapid evolution to anthropogenic change but remain poorly understood. Atlantic killifish (Fundulus heteroclitus) in the Elizabeth River, VA have evolved resistance to polycyclic aromatic hydrocarbons (PAHs) and provide a unique opportunity to examine the links between shifts in the commensal microbiome and organismal physiology associated with evolved resistance. Here, 16S rRNA sequence libraries derived from fish guts and sediments sampled from a highly PAH contaminated site revealed significant differences collected at similar samples from an uncontaminated site. Phylogenetic groups enriched in the libraries derived from PAH-resistant fish were dissimilar to their associated sediment libraries, suggesting the specific environment within the PAH-resistant fish intestine influence the gut microbiome composition. Gut metabolite analysis revealed shifts between PAH-resistant and non-resistant subpopulations. Notably, PAH-resistant fish exhibited reduced levels of tryptophan and increased levels of sphingolipids. Exposure to PAHs appears to impact several bacterial in the gut microbiome, particularly sphingolipid containing bacteria. Bacterial phylotypes known to include species containing sphingolipids were generally lower in the intestines of fish subpopulations exposed to high concentrations of PAHs, inferring a complex host-microbiome relationship. Overall, killifish microbial community shifts appear to be related to a suppression of overall metabolite level, indicating a potential role of the gut in organismal response to anthropogenic environmental change. These results on microbial and metabolomics shifts are potentially linked to altered bioenergetic phenotype observed in the same PAH-resistant killifish populations in other studies.
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Affiliation(s)
- Lauren K Redfern
- Pratt School of Engineering, Department of Civil and Environmental Engineering, Duke University, Durham, NC 27713, United States of America; Department of Environmental and Civil Engineering, Florida Gulf Coast University, Fort Myers, FL 33965, United States of America
| | - Nishad Jayasundara
- Nicholas School of the Environment, Duke University, Durham, NC 27713, United States of America
| | - David R Singleton
- Pratt School of Engineering, Department of Civil and Environmental Engineering, Duke University, Durham, NC 27713, United States of America
| | - Richard T Di Giulio
- Nicholas School of the Environment, Duke University, Durham, NC 27713, United States of America
| | - James Carlson
- Alternative BioMedical Solutions, Carrollton, TX 75006, United States of America
| | - Susan J Sumner
- Nutrition Research Institute, University of North Carolina, Chapel Hill, NC 27599, United States of America
| | - Claudia K Gunsch
- Pratt School of Engineering, Department of Civil and Environmental Engineering, Duke University, Durham, NC 27713, United States of America.
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24
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Extracellular Sphingosine-1-Phosphate Downstream of EGFR Increases Human Glioblastoma Cell Survival. Int J Mol Sci 2021; 22:ijms22136824. [PMID: 34201962 PMCID: PMC8268299 DOI: 10.3390/ijms22136824] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 11/22/2022] Open
Abstract
Sphingosine-1-phosphate (S1P) is a crucial mediator involved in the progression of different cancers, including glioblastoma multiforme (GBM), the most frequent and deadly human brain tumor, characterized by extensive invasiveness and rapid cell growth. Most of GBMs overexpress the epidermal growth factor receptor (EGFR), and we investigated the possible link between S1P and EGFR signaling pathways, focusing on its role in GBM survival, using the U87MG human cell line overexpressing EGFR (EGFR+). We previously demonstrated that EGFR+ cells have higher levels of extracellular S1P and increased sphingosine kinase-1 (SK1) activity than empty vector expressing cells. Notably, we demonstrated that EGFR+ cells are resistant to temozolomide (TMZ), the standard chemotherapeutic drug in GBM treatment, and the inhibition of SK1 or S1P receptors made EGFR+ cells sensitive to TMZ; moreover, exogenous S1P reverted this effect, thus involving extracellular S1P as a survival signal in TMZ resistance in GBM cells. In addition, both PI3K/AKT and MAPK inhibitors markedly reduced cell survival, suggesting that the enhanced resistance to TMZ of EGFR+ cells is dependent on the increased S1P secretion, downstream of the EGFR-ERK-SK1-S1P pathway. Altogether, our study provides evidence of a functional link between S1P and EGFR signaling pathways enhancing the survival properties of GBM cells.
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25
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Permissive Modulation of Sphingosine-1-Phosphate-Enhanced Intracellular Calcium on BK Ca Channel of Chromaffin Cells. Int J Mol Sci 2021; 22:ijms22042175. [PMID: 33671654 PMCID: PMC7926978 DOI: 10.3390/ijms22042175] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/10/2021] [Accepted: 02/18/2021] [Indexed: 12/18/2022] Open
Abstract
Sphingosine-1-phosphate (S1P), is a signaling sphingolipid which acts as a bioactive lipid mediator. We assessed whether S1P had multiplex effects in regulating the large-conductance Ca2+-activated K+ channel (BKCa) in catecholamine-secreting chromaffin cells. Using multiple patch-clamp modes, Ca2+ imaging, and computational modeling, we evaluated the effects of S1P on the Ca2+-activated K+ currents (IK(Ca)) in bovine adrenal chromaffin cells and in a pheochromocytoma cell line (PC12). In outside-out patches, the open probability of BKCa channel was reduced with a mean-closed time increment, but without a conductance change in response to a low-concentration S1P (1 µM). The intracellular Ca2+ concentration (Cai) was elevated in response to a high-dose (10 µM) but not low-dose of S1P. The single-channel activity of BKCa was also enhanced by S1P (10 µM) in the cell-attached recording of chromaffin cells. In the whole-cell voltage-clamp, a low-dose S1P (1 µM) suppressed IK(Ca), whereas a high-dose S1P (10 µM) produced a biphasic response in the amplitude of IK(Ca), i.e., an initial decrease followed by a sustained increase. The S1P-induced IK(Ca) enhancement was abolished by BAPTA. Current-clamp studies showed that S1P (1 µM) increased the action potential (AP) firing. Simulation data revealed that the decreased BKCa conductance leads to increased AP firings in a modeling chromaffin cell. Over a similar dosage range, S1P (1 µM) inhibited IK(Ca) and the permissive role of S1P on the BKCa activity was also effectively observed in the PC12 cell system. The S1P-mediated IK(Ca) stimulation may result from the elevated Cai, whereas the inhibition of BKCa activity by S1P appears to be direct. By the differentiated tailoring BKCa channel function, S1P can modulate stimulus-secretion coupling in chromaffin cells.
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26
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Simon MV, Basu SK, Qaladize B, Grambergs R, Rotstein NP, Mandal N. Sphingolipids as critical players in retinal physiology and pathology. J Lipid Res 2021; 62:100037. [PMID: 32948663 PMCID: PMC7933806 DOI: 10.1194/jlr.tr120000972] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 09/04/2020] [Indexed: 12/24/2022] Open
Abstract
Sphingolipids have emerged as bioactive lipids involved in the regulation of many physiological and pathological processes. In the retina, they have been established to participate in numerous processes, such as neuronal survival and death, proliferation and migration of neuronal and vascular cells, inflammation, and neovascularization. Dysregulation of sphingolipids is therefore crucial in the onset and progression of retinal diseases. This review examines the involvement of sphingolipids in retinal physiology and diseases. Ceramide (Cer) has emerged as a common mediator of inflammation and death of neuronal and retinal pigment epithelium cells in animal models of retinopathies such as glaucoma, age-related macular degeneration (AMD), and retinitis pigmentosa. Sphingosine-1-phosphate (S1P) has opposite roles, preventing photoreceptor and ganglion cell degeneration but also promoting inflammation, fibrosis, and neovascularization in AMD, glaucoma, and pro-fibrotic disorders. Alterations in Cer, S1P, and ceramide 1-phosphate may also contribute to uveitis. Notably, use of inhibitors that either prevent Cer increase or modulate S1P signaling, such as Myriocin, desipramine, and Fingolimod (FTY720), preserves neuronal viability and retinal function. These findings underscore the relevance of alterations in the sphingolipid metabolic network in the etiology of multiple retinopathies and highlight the potential of modulating their metabolism for the design of novel therapeutic approaches.
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Affiliation(s)
- M Victoria Simon
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Departamento De Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Argentine National Research Council (CONICET), Bahía Blanca, Argentina
| | - Sandip K Basu
- Departments of Ophthalmology and Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Bano Qaladize
- Departments of Ophthalmology and Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Richard Grambergs
- Departments of Ophthalmology and Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Nora P Rotstein
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Departamento De Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Argentine National Research Council (CONICET), Bahía Blanca, Argentina.
| | - Nawajes Mandal
- Departments of Ophthalmology and Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN, USA.
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27
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Li H, Sibley CD, Kharel Y, Huang T, Brown AM, Wonilowicz LG, Bevan DR, Lynch KR, Santos WL. Lipophilic tail modifications of 2-(hydroxymethyl)pyrrolidine scaffold reveal dual sphingosine kinase 1 and 2 inhibitors. Bioorg Med Chem 2020; 30:115941. [PMID: 33385956 DOI: 10.1016/j.bmc.2020.115941] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 12/03/2020] [Indexed: 01/22/2023]
Abstract
The sphingosine 1-phosphate (S1P) signaling pathway is an attractive target for pharmacological manipulation due to its involvement in cancer progression and immune cell chemotaxis. The synthesis of S1P is catalyzed by the action of sphingosine kinase 1 or 2 (SphK1 or SphK2) on sphingosine and ATP. While potent and selective inhibitors of SphK1 or SphK2 have been reported, development of potent dual SphK1/SphK2 inhibitors are still needed. Towards this end, we report the structure-activity relationship profiling of 2-(hydroxymethyl)pyrrolidine-based inhibitors with 22d being the most potent dual SphK1/SphK2 inhibitor (SphK1 Ki = 0.679 μM, SphK2 Ki = 0.951 μM) reported in this series. 22d inhibited the growth of engineered Saccharomyces cerevisiae and decreased S1P levels in histiocytic lymphoma myeloid cell line (U937 cells), demonstrating inhibition of SphK1 and 2 in vitro. Molecular modeling studies of 22d docked inside the Sph binding pocket of both SphK1 and SphK2 indicate essential hydrogen bond between the 2-(hydroxymethyl)pyrrolidine head to interact with aspartic acid and serine residues near the ATP binding pocket, which provide the basis for dual inhibition. In addition, the dodecyl tail adopts a "J-shape" conformation found in crystal structure of sphingosine bound to SphK1. Collectively, these studies provide insight into the intermolecular interactions in the SphK1 and 2 active sites to achieve maximal dual inhibitory activity.
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Affiliation(s)
- Hao Li
- Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, United States
| | | | - Yugesh Kharel
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, United States
| | - Tao Huang
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, United States
| | - Anne M Brown
- Department of Biochemistry, Virginia Tech, Blacksburg, VA 24061, United States; Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States
| | - Laura G Wonilowicz
- Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, United States
| | - David R Bevan
- Department of Biochemistry, Virginia Tech, Blacksburg, VA 24061, United States; Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States
| | - Kevin R Lynch
- Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, United States
| | - Webster L Santos
- Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, United States; Department of Biochemistry, Virginia Tech, Blacksburg, VA 24061, United States.
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28
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The Influence of Physical Activity on the Bioactive Lipids Metabolism in Obesity-Induced Muscle Insulin Resistance. Biomolecules 2020; 10:biom10121665. [PMID: 33322719 PMCID: PMC7764345 DOI: 10.3390/biom10121665] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 12/08/2020] [Accepted: 12/11/2020] [Indexed: 12/14/2022] Open
Abstract
High-fat diet consumption and lack of physical activity are important risk factors for metabolic disorders such as insulin resistance and cardiovascular diseases. Insulin resistance is a state of a weakened response of tissues such as skeletal muscle, adipose tissue, and liver to insulin, which causes an increase in blood glucose levels. This condition is the result of inhibition of the intracellular insulin signaling pathway. Skeletal muscle is an important insulin-sensitive tissue that accounts for about 80% of insulin-dependent glucose uptake. Although the exact mechanism by which insulin resistance is induced has not been thoroughly understood, it is known that insulin resistance is most commonly associated with obesity. Therefore, it is believed that lipids may play an important role in inducing insulin resistance. Among lipids, researchers’ attention is mainly focused on biologically active lipids: diacylglycerols (DAG) and ceramides. These lipids are able to regulate the activity of intracellular enzymes, including those involved in insulin signaling. Available data indicate that physical activity affects lipid metabolism and has a positive effect on insulin sensitivity in skeletal muscles. In this review, we have presented the current state of knowledge about the impact of physical activity on insulin resistance and metabolism of biologically active lipids.
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29
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Chen Z, Narum SR. Whole genome resequencing reveals genomic regions associated with thermal adaptation in redband trout. Mol Ecol 2020; 30:162-174. [PMID: 33135227 DOI: 10.1111/mec.15717] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 10/14/2020] [Accepted: 10/19/2020] [Indexed: 12/18/2022]
Abstract
Adaptation to local environments involves evolution of ecologically important traits and underlying physiological processes. Here, we used low coverage whole-genome resequencing (lcWGR) on individuals to identify genome regions involved in thermal adaptation in wild redband trout Oncorhynchus mykiss gairdneri, a subspecies of rainbow trout that inhabits ecosystems ranging from cold montane forests to high elevation deserts. This study includes allele frequency-based analyses for selective sweeps among populations, followed by multiple association tests for specific sets of phenotypes measured under thermal stress (acute and chronic survival/mortality; high or low cardiac performance groups). Depending on the groups in each set of analyses, sequencing reads covered 43%-75% of the genome at ≥15× and each analysis included millions of SNPs across the genome. In tests for selective sweeps among populations, a total of six chromosomal regions were significant. The further association tests for specific phenotypes revealed that the region on chromosome 4 was consistently the most significant and contains the cerk gene (ceramide kinase). This study provides insight into a potential genetic mechanism of local thermal adaptation and suggests cerk may be an important candidate gene. However, further validation of this cerk gene is necessary to determine if the association with cardiac performance results in a functional role to influence thermal performance when exposed to high water temperatures and hypoxic conditions.
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Affiliation(s)
- Zhongqi Chen
- Aquaculture Research Institute, University of Idaho, Hagerman, ID, USA
| | - Shawn R Narum
- Aquaculture Research Institute, University of Idaho, Hagerman, ID, USA.,Columbia River Inter-Tribal Fish Commission, Hagerman, ID, USA
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30
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Ito M, Yoshino O, Ono Y, Yamaki‐Ushijima A, Tanaka T, Shima T, Orisaka M, Iwase A, Nakashima A, Saito S. Bone morphogenetic protein‐2 enhances gonadotropin‐independent follicular development via sphingosine kinase 1. Am J Reprod Immunol 2020; 85:e13374. [DOI: 10.1111/aji.13374] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 11/04/2020] [Indexed: 12/14/2022] Open
Affiliation(s)
- Masami Ito
- Department of Obstetrics and Gynecology University of Toyama Japan
| | - Osamu Yoshino
- Department of Obstetrics and Gynecology School of Medicine Kitasato University Kanagawa Japan
| | - Yosuke Ono
- Department of Obstetrics and Gynecology Teinekeijinkai Hospital Hokkaido Japan
| | | | - Tomoko Tanaka
- Department of Obstetrics and Gynecology University of Toyama Japan
| | - Tomoko Shima
- Department of Obstetrics and Gynecology University of Toyama Japan
| | - Makoto Orisaka
- Department of Obstetrics and Gynecology University of Fukui Fukui Japan
| | - Akira Iwase
- Department of Obstetrics and Gynecology University of Gunma Maebashi Japan
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31
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Li Q, Qian J, Li Y, Huang P, Liang H, Sun H, Liu C, Peng J, Lin X, Chen X, Peng H, Wang Z, Liu M, Shi Y, Yan H, Wei Y, Liao L, He Q, Huang X, Ruan F, Mao C, Zhou J, Wang K, Li C. Generation of sphingosine-1-phosphate by sphingosine kinase 1 protects nonalcoholic fatty liver from ischemia/reperfusion injury through alleviating reactive oxygen species production in hepatocytes. Free Radic Biol Med 2020; 159:136-149. [PMID: 32738398 DOI: 10.1016/j.freeradbiomed.2020.07.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/27/2020] [Accepted: 07/02/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Nonalcoholic fatty liver (NAFL) is emerging as a leading risk factor of hepatic ischemia/reperfusion (I/R) injury lacking of effective therapy. Lipid dyshomeostasis has been implicated in the hepatopathy of NAFL. Herein, we investigate the bioactive lipids that critically regulate I/R injury in NAFL. METHODS Lipidomics were performed to identify dysregulated lipids in mouse and human NAFL with I/R injury. The alteration of corresponding lipid-metabolizing genes was examined. The effects of the dysregulated lipid metabolism on I/R injury in NAFL were evaluated in mice and primary hepatocytes. RESULTS Sphingolipid metabolic pathways responsible for the generation of sphingosine-1-phosphate (S1P) were uncovered to be substantially activated by I/R in mouse NAFL. Sphingosine kinase 1 (Sphk1) was found to be essential for hepatic S1P generation in response to I/R in hepatocytes of NAFL mice. Sphk1 knockdown inhibited the hepatic S1P rise while accumulating ceramides in hepatocytes of NAFL mice, leading to aggressive hepatic I/R injury with upregulation of oxidative stress and increase of reactive oxygen species (ROS). In contrast, administration of exogenous S1P protected hepatocytes of NAFL mice from hepatic I/R injury. Clinical study revealed a significant activation of S1P generation by I/R in liver specimens of NAFL patients. In vitro studies on the L02 human hepatocytes consolidated that inhibiting the generation of S1P by knocking down SPHK1 exaggerated I/R-induced damage and oxidative stress in human hepatocytes of NAFL. CONCLUSIONS Generation of S1P by SPHK1 is important for protecting NAFL from I/R injury, which may serve as therapeutic targets for hepatic I/R injury in NAFL.
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Affiliation(s)
- Qingping Li
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jianping Qian
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yiyi Li
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Pengxiang Huang
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Hanbiao Liang
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Hang Sun
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Cuiting Liu
- Central Laboratory, Southern Medical University, Guangzhou, Guangdong, China
| | - Jie Peng
- Department of General Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xinxin Lin
- The First Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| | - Xuefang Chen
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Hongxian Peng
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Zihuan Wang
- The First Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| | - Meiqi Liu
- The First Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| | - Yaru Shi
- The First Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| | - Hongmei Yan
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yiran Wei
- The First Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| | - Leyi Liao
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qinghua He
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xixin Huang
- The First Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| | - Fangyi Ruan
- The First Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| | - Cungui Mao
- Department of Medicine and Cancer Center, The State University of New York at Stony Brook, Stony Brook, NY, USA
| | - Jie Zhou
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - Kai Wang
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - Chuanjiang Li
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
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32
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Matsuzaki E, Minakami M, Matsumoto N, Anan H. Dental regenerative therapy targeting sphingosine-1-phosphate (S1P) signaling pathway in endodontics. JAPANESE DENTAL SCIENCE REVIEW 2020; 56:127-134. [PMID: 33088365 PMCID: PMC7567953 DOI: 10.1016/j.jdsr.2020.09.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/02/2020] [Accepted: 09/18/2020] [Indexed: 12/31/2022] Open
Abstract
The establishment of regenerative therapy in endodontics targeting the dentin-pulp complex, cementum, periodontal ligament tissue, and alveolar bone will provide valuable information to preserve teeth. It is well known that the application of stem cells such as induced pluripotent stem cells, embryonic stem cells, and somatic stem cells is effective in regenerative medicine. There are many somatic stem cells in teeth and periodontal tissues including dental pulp stem cells (DPSCs), stem cells from the apical papilla, and periodontal ligament stem cells. Particularly, several studies have reported the regeneration of clinical pulp tissue and alveolar bone by DPSCs transplantation. However, further scientific issues for practical implementation remain to be addressed. Sphingosine-1-phosphate (S1P) acts as a bioactive signaling molecule that has multiple biological functions including cellular differentiation, and has been shown to be responsible for bone resorption and formation. Here we discuss a strategy for bone regeneration and a possibility for regenerative endodontics targeting S1P signaling pathway as one of approaches for induction of regeneration by improving the regenerative capacity of endogenous cells. SCIENTIFIC FIELD OF DENTAL SCIENCE Endodontology.
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Affiliation(s)
- Etsuko Matsuzaki
- Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
- Oral Medicine Research Center, Fukuoka Dental College, Fukuoka, Japan
| | - Masahiko Minakami
- Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
| | - Noriyoshi Matsumoto
- Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
| | - Hisashi Anan
- Section of Operative Dentistry and Endodontology, Department of Odontology, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
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Zhang C, Shen J, Kong S, Zhang M, Zhang Q, Zhou J, Zhen X, Kang N, Jiang Y, Ding L, Sun H, Yan G. MicroRNA-181a promotes follicular granulosa cell apoptosis via sphingosine-1-phosphate receptor 1 expression downregulation†. Biol Reprod 2020; 101:975-985. [PMID: 31359035 DOI: 10.1093/biolre/ioz135] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 06/25/2019] [Accepted: 07/17/2019] [Indexed: 01/08/2023] Open
Abstract
Oxidative stress induces granulosa cell (GC) apoptosis and subsequent follicular atresia. Since our previous studies indicate that microRNA-181a (miR-181a) expression is increased in GCs undergoing apoptosis, the present study was designed to define the relationship between exposure to oxidative stressors in GCs and changes in miR-181a expression and function. To achieve this, we employed an H2O2-induced in vitro model and a 3-nitropropionic acid-induced in vivo model of ovarian oxidative stress. We demonstrated that in vitro miR-181a overexpression promoted GC apoptosis in a dose-dependent manner; sphingosine-1-phosphate (S1P) significantly reversed both H2O2-induced and miR-181a-induced apoptosis in GCs. Moreover, we identified sphingosine-1-phosphate receptor 1 (S1PR1), a critical receptor of S1P, as a novel target of miR-181a in GCs. MicroRNA-181a induced GC apoptosis by repressing S1PR1 expression in vitro. Importantly, increased miR-181a expression and decreased S1PR1 expression were detected in the in vivo ovarian oxidative stress model by Western blot analysis and immunohistochemistry. Furthermore, we found similar expression patterns of miR-181a and S1PR1 in GCs from patients with premature ovarian insufficiency. In conclusion, our results suggest that miR-181a directly suppresses expression of S1PR1, which has critical roles in mediating oxidative stress-induced GC apoptosis both in vitro and in vivo.
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Affiliation(s)
- Chunxue Zhang
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Jingtao Shen
- Department of Nuclear Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Shuangbo Kong
- Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Mei Zhang
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Qun Zhang
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Jidong Zhou
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Xin Zhen
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Nannan Kang
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Yue Jiang
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Lijun Ding
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Haixiang Sun
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China.,State Key Laboratory of Pharmaceutical Biotechnology, Department of Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Guijun Yan
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
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Roy S, Mohammad T, Gupta P, Dahiya R, Parveen S, Luqman S, Hasan GM, Hassan MI. Discovery of Harmaline as a Potent Inhibitor of Sphingosine Kinase-1: A Chemopreventive Role in Lung Cancer. ACS OMEGA 2020; 5:21550-21560. [PMID: 32905276 PMCID: PMC7469376 DOI: 10.1021/acsomega.0c02165] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
The sphingosine kinase-1/sphingosine-1-phosphate pathway is linked with the cancer progression and survival of the chemotherapy-challenged cells. Sphingosine kinase-1 (SphK1) has emerged as an attractive drug target, but their inhibitors from natural sources are limited. In this study, we have chosen harmaline, one of the β-carboline alkaloids, and report its mechanism of binding to SphK1 and subsequent inhibition. Molecular docking combined with fluorescence binding studies revealed that harmaline binds to the substrate-binding pocket of SphK1 with an appreciable binding affinity and significantly inhibits the kinase activity of SphK1 with an IC50 value in the micromolar range. The cytotoxic effect of harmaline on non-small-cell lung cancer cells by MTT assay was found to be higher for H1299 compared to A549. Harmaline induces apoptosis in non-small-cell lung carcinoma cells (H1299 and A549), possibly via the intrinsic pathway. Our findings suggest that harmaline could be implicated as a scaffold for designing potent anticancer molecules with SphK1 inhibitory potential.
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Affiliation(s)
- Sonam Roy
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Taj Mohammad
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Preeti Gupta
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Rashmi Dahiya
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Shahnaz Parveen
- Molecular
Bioprospection Department, CSIR-Central
Institute of Medicinal and Aromatic Plants, Lucknow 226015, Uttar Pradesh, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Suaib Luqman
- Molecular
Bioprospection Department, CSIR-Central
Institute of Medicinal and Aromatic Plants, Lucknow 226015, Uttar Pradesh, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Gulam Mustafa Hasan
- Department
of Biochemistry, College of Medicine, Prince
Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Kingdom of Saudi Arabia
| | - Md. Imtaiyaz Hassan
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
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Momha R, Pegnyemb DE, Mosset P. Synthesis of (2S,3R,5R)-2-Azido-3,5-dihydroxynonadecane Sphingolipid Analogue. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
A concise and highly efficient synthesis of an enigmol analogue has been achieved. The synthetic strategy features Jacobsen’s hydrolytic kinetic resolution (HKR) and epoxide opening by alkynyl boranes as the key steps.
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Affiliation(s)
- René Momha
- Université de Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226
- AGIR, EA 4294, UFR of Pharmacy, Jules Verne University of Picardie
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Zhong L, Xie L, Yang Z, Li L, Song S, Cao D, Liu Y. Prognostic value of S1PR1 and its correlation with immune infiltrates in breast and lung cancers. BMC Cancer 2020; 20:766. [PMID: 32799825 PMCID: PMC7429796 DOI: 10.1186/s12885-020-07278-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 08/09/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Sphingosine-1-phosphate receptor (S1PR1) is involved in vascular development, a key process in tumorigenesis. This study aimed to evaluate its roles in tumor development and prognosis. METHODS S1PR1 expression levels were analyzed using TIMER and Oncomine database, and the prognostic significance of S1PR1 was assessed using PrognoScan and Kaplan-Meier plotter databases. The relationship between S1PR1 and tumor-infiltrated immune cells was analyzed using TIMER. RESULTS S1PR1 expression was remarkably lower in breast and lung cancer tissues than in the corresponding normal tissues. Lower expression was related to poor overall survival and disease-free survival in breast invasive carcinoma (BRCA), lung adenocarcinoma (LUAD), and lung squamous cell carcinoma (LUSC). A functional network analysis confirmed the function of S1PR1 in regulating vasculogenesis. In addition, S1PR1 levels were significantly negative with regard to the tumor purity of BRCA (r = - 0.508, P = 1.76e-66), LUAD (r = - 0.353, P = 6.05e-16), and LUSC (r = - 0.402, P = - 5.20e-20). Furthermore, S1PR1 levels were significantly positive with regard to infiltrating CD8+ (r = 0.38, P = 5.91e-35) and CD4+ T cells (r = 0.335, P = 1.03e-26), macrophages (r = 0.219, P = 3.67e-12), neutrophils (r = 0.168, P = 2.03e-7), and dendritic cells (DCs) (r = 0.208, P = 9.14e-11) in BRCA; S1PR1 levels were significantly positive with regard to CD8+ T cells (r = 0.308, P = 3.61e-12), macrophages (r = 0.376, P = 1.01e-17), neutrophils (r = 0.246, P = 4.15e-8), and DCs (r = 0.207, P = 4.16e-6) in LUAD; and positive with regard to B cells (r = 0.356, P = 1.57e-15), CD8+ (r = 0.459, P = 3.83e-26) and CD4+ T cells (r = 0.338, P = 3.98e-14), macrophages (r = 0.566, P = 2.61e-45), neutrophils (r = 0.453, P = 1.79e-25), and DCs (r = 0.56, P = 2.12e-40) in LUSC. CONCLUSIONS S1PR1 levels are positively correlated with multiple immune markers in breast and lung cancer. These observed correlations between S1PR1 and the prognosis and immune cell infiltration provide a foundation for further research on its immunomodulatory role in cancer.
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Affiliation(s)
- Limei Zhong
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, No. 466 Xingang Middle Road, Haizhu District, Guangzhou, 510317, Guangdong Province, China
| | - Linling Xie
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, No. 16 Airport Road, Baiyun District, Guangzhou, 510407, China
| | - Zhiyong Yang
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, No. 466 Xingang Middle Road, Haizhu District, Guangzhou, 510317, Guangdong Province, China
| | - Lijuan Li
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, No. 466 Xingang Middle Road, Haizhu District, Guangzhou, 510317, Guangdong Province, China
| | - Shaohua Song
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, No. 466 Xingang Middle Road, Haizhu District, Guangzhou, 510317, Guangdong Province, China
| | - Donglin Cao
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, No. 466 Xingang Middle Road, Haizhu District, Guangzhou, 510317, Guangdong Province, China.
| | - Yufeng Liu
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, No. 16 Airport Road, Baiyun District, Guangzhou, 510407, China.
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, 510407, China.
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Rousselle TV, Kuscu C, Kuscu C, Schlegel K, Huang L, Namwanje M, Eason JD, Makowski L, Maluf D, Mas V, Bajwa A. FTY720 Regulates Mitochondria Biogenesis in Dendritic Cells to Prevent Kidney Ischemic Reperfusion Injury. Front Immunol 2020; 11:1278. [PMID: 32670281 PMCID: PMC7328774 DOI: 10.3389/fimmu.2020.01278] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 05/20/2020] [Indexed: 12/14/2022] Open
Abstract
Dendritic cells (DCs) are central in regulating immune responses of kidney ischemia-reperfusion injury (IRI), and strategies to alter DC function may provide new therapeutic opportunities. Sphingosine 1-phosphate (S1P) modulates immunity through binding to its receptors (S1P1-5), and protection from kidney IRI occurs in mice treated with S1PR agonist, FTY720 (FTY). We tested if ex vivo propagation of DCs with FTY could be used as cellular therapy to limit the off-target effects associated with systemic FTY administration in kidney IRI. DCs have the ability of regulate innate and adaptive responses and we posited that treatment of DC with FTY may underlie improvements in kidney IRI. Herein, it was observed that treatment of bone marrow derived dendritic cells (BMDCs) with FTY induced mitochondrial biogenesis, FTY-treated BMDCs (FTY-DCs) showed significantly higher oxygen consumption rate and ATP production compared to vehicle treated BMDCs (Veh-DCs). Adoptive transfer of FTY-DCs to mice 24 h before or 4 h after IRI significantly protected the kidneys from injury compared to mice treated with Veh-DCs. Additionally, allogeneic adoptive transfer of C57BL/6J FTY-DCs into BALB/c mice equally protected the kidneys from IRI. FTY-DCs propagated from S1pr1-deficient DCs derived from CD11cCreS1pr1fl/fl mice as well as blunting mitochondrial oxidation in wildtype (WT) FTY-DCs prior to transfer abrogated the protection observed by FTY-DCs. We queried if DC mitochondrial content alters kidney responses after IRI, a novel but little studied phenomenon shown to be integral to regulation of the immune response. Transfer of mitochondria rich FTY-DCs protects kidneys from IRI as transferred FTY-DCs donated their mitochondria to recipient splenocytes (i.e., macrophages) and prior splenectomy abrogated this protection. Adoptive transfer of FTY-DCs either prior to or after ischemic injury protects kidneys from IRI demonstrating a potent role for donor DC-mitochondria in FTY's efficacy. This is the first evidence, to our knowledge, that DCs have the potential to protect against kidney injury by donating mitochondria to splenic macrophages to alter their bioenergetics thus making them anti-inflammatory. In conclusion, the results support that ex vivo FTY720-induction of the regulatory DC phenotype could have therapeutic relevance that can be preventively infused to reduce acute kidney injury.
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Affiliation(s)
- Thomas V Rousselle
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Sciences Center, Memphis, TN, United States
| | - Canan Kuscu
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Sciences Center, Memphis, TN, United States
| | - Cem Kuscu
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Sciences Center, Memphis, TN, United States
| | - Kailo Schlegel
- Division of Nephrology and the Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - LiPing Huang
- Division of Nephrology and the Center for Immunity, Inflammation and Regenerative Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Maria Namwanje
- Department of Pediatrics and Genetics, University of Tennessee Health Science Center, Memphis, TN, United States
| | - James D Eason
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Sciences Center, Memphis, TN, United States
| | - Liza Makowski
- Department of Medicine - Division of Hematology and Oncology, College of Medicine, Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Sciences Center, Memphis, TN, United States
| | - Daniel Maluf
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Sciences Center, Memphis, TN, United States
| | - Valeria Mas
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Sciences Center, Memphis, TN, United States
| | - Amandeep Bajwa
- Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, School of Medicine, University of Tennessee Health Sciences Center, Memphis, TN, United States
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38
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Tefas C, Ciobanu L, Tanțău M, Moraru C, Socaciu C. The potential of metabolic and lipid profiling in inflammatory bowel diseases: A pilot study. Bosn J Basic Med Sci 2020; 20:262-270. [PMID: 31368421 PMCID: PMC7202185 DOI: 10.17305/bjbms.2019.4235] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 07/10/2019] [Indexed: 01/04/2023] Open
Abstract
Inflammatory bowel diseases (IBDs) are conditions that still pose significant problems. A third of the patients are either misdiagnosed or a proper diagnosis of Crohn’s disease (CD) or ulcerative colitis (UC) cannot be made. We need new biomarkers, so that we can offer patients the best treatment and keep the disease in an inactive state for as long as possible. Alterations in metabolic profiles have been incriminated in the pathophysiology of IBD. The aim of the present study was to identify molecules that could serve as biomarkers for a positive diagnosis of IBD as well as to discriminate UC from colonic CD. Twenty-two patients with active colonic IBD (UC = 17, CD = 5) and 24 age- and gender-matched healthy controls were enrolled. Plasma lipid and metabolic profiles were quantified using ultra-high-performance liquid chromatography combined with mass spectrometry. Univariate and multivariate statistical tests were employed. Six lipid species and 7 metabolites were significantly altered in IBD patients compared to healthy controls, with the majority belonging to glycerophospholipid, linoleic acid, and sphingolipid metabolisms. Five lipid species and only 1 metabolite were significantly increased in UC compared to CD. This preliminary study suggests that lipid and metabolic profiling of serum can become diagnostic tools for IBD. In addition, they can be used to differentiate between CD and UC.
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Affiliation(s)
- Cristian Tefas
- Gastroenterology Department, "Prof. Dr. Octavian Fodor" Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania; Department of Internal Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Lidia Ciobanu
- Gastroenterology Department, "Prof. Dr. Octavian Fodor" Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania; Department of Internal Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Marcel Tanțău
- Gastroenterology Department, "Prof. Dr. Octavian Fodor" Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania; Department of Internal Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Corina Moraru
- RTD Center for Applied Biotechnology BIODIATECH, SC Proplanta, Cluj-Napoca, Romania
| | - Carmen Socaciu
- RTD Center for Applied Biotechnology BIODIATECH, SC Proplanta, Cluj-Napoca, Romania
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Zhang W, Song Y, Chai T, Liao G, Zhang L, Jia Q, Qian Y, Qiu J. Lipidomics perturbations in the brain of adult zebrafish (Danio rerio) after exposure to chiral ibuprofen. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 713:136565. [PMID: 31954244 DOI: 10.1016/j.scitotenv.2020.136565] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/03/2020] [Accepted: 01/05/2020] [Indexed: 06/10/2023]
Abstract
The stereoselective effects of chiral ibuprofen (IBU) were studied using lipidomics by exposing adult zebrafish (Danio rerio) to an environmental concentration of 5 μg/L for 28 days. After treatment with rac-/R-(-)-/S-(+)-IBU, the brain tissue of the zebrafish was harvested to analyze for lipid metabolites by using ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry. Results showed that the six classes of lipids, namely, glycerophospholipids, sterol lipids, prenol lipids, fatty acyls, glycerolipids, and sphingolipids, including 46 biomarkers, were affected after exposure. The different influences on metabolites were observed in the rac-/R-(-)-/S-(+)-IBU-treated samples. The rac-IBU treatment remarkably affected nine lipids. The R-(-)-IBU and S-(+)-IBU treatments had remarkably effects on six and four lipids, respectively. According to the HMDB database and KEGG pathways, nine important lipids were successfully matched to the involved biochemical pathways, such as glycerophospholipid metabolism, arachidonic acid metabolism, and linoleic acid metabolism. Therefore, IBU can cause disorders in the metabolism of the brain lipids of adult zebrafish and affect the composition of biological membranes, inflammatory responses, and cardiovascular and cerebrovascular diseases. The significant difference in the effects of R-(-)-IBU and S-(+)-IBU on lipidomics indicated that chiral IBU has stereoselective toxicity to aquatic organisms. Our study provided new insights into the environmental toxicology and highlighted the hazard of pharmaceutical and personal care product pollution in aquatic environments.
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Affiliation(s)
- Wei Zhang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Yue Song
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, China; Laboratory of Immunology for Environment and Health, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, Shandong, China
| | - Tingting Chai
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, China; College of Agriculture and Food Science, Key Laboratory of Quality Improvement of Agricultural Products of Zhejiang Province, Zhejiang A & F University, Lin'an, Zhejiang 311300, China
| | - Guangqin Liao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Lin Zhang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Qi Jia
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Yongzhong Qian
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Jing Qiu
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, China.
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40
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Pedersen L, Panahandeh P, Siraji MI, Knappskog S, Lønning PE, Gordillo R, Scherer PE, Molven A, Teigen K, Halberg N. Golgi-Localized PAQR4 Mediates Antiapoptotic Ceramidase Activity in Breast Cancer. Cancer Res 2020; 80:2163-2174. [PMID: 32291319 DOI: 10.1158/0008-5472.can-19-3177] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 03/02/2020] [Accepted: 04/09/2020] [Indexed: 11/16/2022]
Abstract
The metabolic network of sphingolipids plays important roles in cancer biology. Prominent sphingolipids include ceramides and sphingosine-1-phosphate that regulate multiple aspects of growth, apoptosis, and cellular signaling. Although a significant number of enzymatic regulators of the sphingolipid pathway have been described in detail, many remained poorly characterized. Here we applied a patient-derived systemic approach to identify and molecularly define progestin and adipoQ receptor family member IV (PAQR4) as a Golgi-localized ceramidase. PAQR4 was approximately 5-fold upregulated in breast cancer compared with matched control tissue and its overexpression correlated with disease-specific survival rates in breast cancer. Induction of PAQR4 in breast tumors was found to be subtype-independent and correlated with increased ceramidase activity. These findings establish PAQR4 as Golgi-localized ceramidase required for cellular growth in breast cancer. SIGNIFICANCE: Induction of and cellular dependency on de novo sphingolipid synthesis via PAQR4 highlights a central vulnerability in breast cancer that may serve as a viable therapeutic target.
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Affiliation(s)
- Line Pedersen
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | | | | | - Stian Knappskog
- Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway.,Department of Oncology, Haukeland University Hospital, Bergen, Norway
| | - Per Eystein Lønning
- Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway.,Department of Oncology, Haukeland University Hospital, Bergen, Norway
| | - Ruth Gordillo
- Touchstone Diabetes Center, Departments of Internal Medicine and Simmons Cancer Center, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Philipp E Scherer
- Touchstone Diabetes Center, Departments of Internal Medicine and Simmons Cancer Center, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Anders Molven
- Gade Laboratory for Pathology, Department of Clinical Medicine, University of Bergen, Bergen, Norway.,Department of Pathology, Haukeland University Hospital, Bergen, Norway
| | - Knut Teigen
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Nils Halberg
- Department of Biomedicine, University of Bergen, Bergen, Norway.
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41
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Choi MK, Song IS. Recent advances in the formulation of sphingolipid anticancer therapeutics. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2020. [DOI: 10.1007/s40005-020-00475-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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42
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Matsumoto G, Hashizume C, Watanabe K, Taniguchi M, Okazaki T. Deficiency of sphingomyelin synthase 1 but not sphingomyelin synthase 2 reduces bone formation due to impaired osteoblast differentiation. Mol Med 2019; 25:56. [PMID: 31847800 PMCID: PMC6918654 DOI: 10.1186/s10020-019-0123-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/25/2019] [Indexed: 01/08/2023] Open
Abstract
Background There are two isoforms of sphingomyelin synthase (SMS): SMS1 and SMS2. SMS1 is located in the Golgi apparatus only while SMS2 is located in both the plasma membrane and the Golgi apparatus. SMS1 and SMS2 act similarly to generate sphingomyelin (SM). We have undertaken the experiments reported here on SMS and osteoblast differentiation in order to better understand the role SMS plays in skeletal development. Methods We analyzed the phenotype of a conditional knockout mouse, which was generated by mating a Sp7 promoter-driven Cre-expressing mouse with an SMS1-floxed SMS2-deficient mouse (Sp7-Cre;SMS1f/f;SMS2−/− mouse). Results When we compared Sp7-Cre;SMS1f/f;SMS2−/− mice with C57BL/6, SMS2-deficient mice (SMS1f/f;SMS2−/−) and SP7-Cre positive control mice (Sp7-Cre, Sp7-Cre;SMS1+/+;SMS2+/− and Sp7-Cre;SMS1+/+;SMS2−/−), we found that although cartilage formation is normal, Sp7-Cre;SMS1f/f;SMS2−/− mice showed reduced trabecular and cortical bone mass, had lower bone mineral density, and had a slower mineral apposition rate than control mice. Next, we have used a tamoxifen-inducible knockout system in vitro to show that SMS1 plays an important role in osteoblast differentiation. We cultured osteoblasts derived from ERT2-Cre;SMS1f/fSMS2−/− mice. We observed impaired differentiation of these cells in response to Smad1/5/8 and p38 that were induced by bone morphogenic protein 2 (BMP2). However, Erk1/2 phosphorylation was unaffected by inactivation of SMS1. Conclusions These findings provide the first genetic evidence that SMS1 plays a role in bone development by regulating osteoblast development in cooperation with BMP2 signaling. Thus, SMS1 acts as an endogenous signaling component necessary for bone formation.
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Affiliation(s)
- Goichi Matsumoto
- Department of Oral and Maxillofacial Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan.
| | - Chieko Hashizume
- Department of Medicine, Division of General and Digestive Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - Ken Watanabe
- Department of Bone and Joint Disease, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Makoto Taniguchi
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
| | - Toshiro Okazaki
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan
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Diarte-Añazco EMG, Méndez-Lara KA, Pérez A, Alonso N, Blanco-Vaca F, Julve J. Novel Insights into the Role of HDL-Associated Sphingosine-1-Phosphate in Cardiometabolic Diseases. Int J Mol Sci 2019; 20:ijms20246273. [PMID: 31842389 PMCID: PMC6940915 DOI: 10.3390/ijms20246273] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 02/07/2023] Open
Abstract
Sphingolipids are key signaling molecules involved in the regulation of cell physiology. These species are found in tissues and in circulation. Although they only constitute a small fraction in lipid composition of circulating lipoproteins, their concentration in plasma and distribution among plasma lipoproteins appears distorted under adverse cardiometabolic conditions such as diabetes mellitus. Sphingosine-1-phosphate (S1P), one of their main representatives, is involved in regulating cardiomyocyte homeostasis in different models of experimental cardiomyopathy. Cardiomyopathy is a common complication of diabetes mellitus and represents a main risk factor for heart failure. Notably, plasma concentration of S1P, particularly high-density lipoprotein (HDL)-bound S1P, may be decreased in patients with diabetes mellitus, and hence, inversely related to cardiac alterations. Despite this, little attention has been given to the circulating levels of either total S1P or HDL-bound S1P as potential biomarkers of diabetic cardiomyopathy. Thus, this review will focus on the potential role of HDL-bound S1P as a circulating biomarker in the diagnosis of main cardiometabolic complications frequently associated with systemic metabolic syndromes with impaired insulin signaling. Given the bioactive nature of these molecules, we also evaluated its potential of HDL-bound S1P-raising strategies for the treatment of cardiometabolic disease.
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Affiliation(s)
- Elena M. G. Diarte-Añazco
- Institut de Recerca de l’Hospital de la Santa Creu i Sant Pau, and Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain;
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Spain;
| | - Karen Alejandra Méndez-Lara
- Institut de Recerca de l’Hospital de la Santa Creu i Sant Pau, and Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain;
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Spain;
- Correspondence: (K.A.M.-L.); (F.B.-V.); (J.J.)
| | - Antonio Pérez
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Spain;
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, 28029 Madrid, Spain;
- Servei d’Endocrinologia, Hospital de la Santa Creu i Sant Pau, IIB Sant Pau, 08041 Barcelona, Spain
| | - Núria Alonso
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, 28029 Madrid, Spain;
- Servei d’Endocrinologia, Hospital Universitari Germans Trias i Pujol, Badalona, 08916 Barcelona, Spain
| | - Francisco Blanco-Vaca
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Spain;
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, 28029 Madrid, Spain;
- Servei de Bioquímica, Hospital de la Santa Creu i Sant Pau, IIB Sant Pau, 08041 Barcelona, Spain
- Correspondence: (K.A.M.-L.); (F.B.-V.); (J.J.)
| | - Josep Julve
- Institut de Recerca de l’Hospital de la Santa Creu i Sant Pau, and Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain;
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Spain;
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, 28029 Madrid, Spain;
- Correspondence: (K.A.M.-L.); (F.B.-V.); (J.J.)
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Lim JJ, Kim HJ, Rhie BH, Lee MR, Choi MJ, Hong SH, Kim KS. Maintenance of hPSCs under Xeno-Free and Chemically Defined Culture Conditions. Int J Stem Cells 2019; 12:484-496. [PMID: 31658510 PMCID: PMC6881038 DOI: 10.15283/ijsc19090] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 09/03/2019] [Accepted: 09/16/2019] [Indexed: 01/08/2023] Open
Abstract
Previously, the majority of human embryonic stem cells and human induced pluripotent stem cells have been derived on feeder layers and chemically undefined medium. Those media components related to feeder cells, or animal products, often greatly affect the consistency of the cell culture. There are clear advantages of a defined, xeno-free, and feeder-free culture system for human pluripotent stem cells (hPSCs) cultures, since consistency in the formulations prevents lot-to-lot variability. Eliminating all non-human components reduces health risks for downstream applications, and those environments reduce potential immunological reactions from stem cells. Therefore, development of feeder-free hPSCs culture systems has been an important focus of hPSCs research. Recently, researchers have established a variety of culture systems in a defined combination, xeno-free matrix and medium that supports the growth and differentiation of hPSCs. Here we described detailed hPSCs culture methods under feeder-free and chemically defined conditions using vitronetin and TeSR-E8 medium including supplement bioactive lysophospholipid for promoting hPSCs proliferation and maintaining stemness.
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Affiliation(s)
- Jung Jin Lim
- Department of Biomedical Science, Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Hyung Joon Kim
- Department of Biomedical Science, Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Byung-Ho Rhie
- Department of Biomedical Science, Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Man Ryul Lee
- Soonchunhyang Institute of Medi-bioscience, Soonchunhyang University, Cheonan, Korea
| | - Myeong Jun Choi
- 1st Research Center, Axceso Biopharma Co., Ltd., Yongin, Korea
| | - Seok-Ho Hong
- Department of Internal Medicine, School of Medicine, Kangwon National University, Chuncheon, Korea
| | - Kye-Seong Kim
- Department of Biomedical Science, Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea.,College of Medicine, Hanyang University, Seoul, Korea
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Wang Y, Gao TT, Xu DF, Zhu XY, Dong WW, Lv Z, Liu YJ, Jiang L. Upregulation of sphingosine kinase 1 contributes to ventilator-associated lung injury in a two-hit model. Int J Mol Med 2019; 44:2077-2090. [PMID: 31638192 PMCID: PMC6844625 DOI: 10.3892/ijmm.2019.4379] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 09/06/2019] [Indexed: 11/06/2022] Open
Abstract
Ventilator‑associated lung injury (VALI) remains a significant medical problem in intensive care units. The present study aimed to investigate the role of sphingosine kinase 1 (SPHK1) in VALI using a two‑hit model and explore the potential underlying molecular mechanism. Mice were divided into five groups: i) Non‑ventilated group; ii) non‑ventilated + lipopolysaccharide (LPS) group; iii) ventilated group; iv) ventilated + LPS group; and v) ventilated + LPS + SPHK1 inhibitor group. Mice were administered LPS (1 mg/kg) via an intraperitoneal injection. After 12 h, the mice were anesthetized and connected to a ventilator (10 ml/kg at 150 breaths/min) for 4 h. SPHK1 inhibitor (50 mg/kg) was injected intraperitoneally 1 h prior to ventilation. Mouse lung vascular endothelial cells were treated with LPS and SPHK1 inhibitor, and then subjected to cyclic stretch for 4 h. The present results suggested that the expression of SPHK1 and sphingosine 1 phosphate was upregulated in the two‑hit model of VALI; SPHK1 inhibitor could attenuate VALI in the two‑hit model as observed by hematoxylin and eosin staining, and affected the cell count and the protein content levels in the bronchoalveolar lavage fluid. In addition, treatment with SPHK1 inhibitor reduced the wet‑to‑dry ratio of the lungs and suppressed Evans blue dye leakage into the lung tissue. Furthermore, SPHK1 inhibitor exhibited protective effects on the two‑hit model of VALI by inhibiting the Ras homolog family member a‑mediated phosphorylation of myosin phosphatase target subunit 1 (MYPT‑1) and endothelial hyperpermeability. Additionally, mice were divided into five additional groups: i) Non‑ventilated group; ii) non‑ventilated + LPS group; iii) ventilated group; iv) ventilated + LPS group; and v) ventilated + LPS + Rho‑associated coiled‑coil forming protein kinase (ROCK)1 inhibitor group. ROCK1 inhibitor (10 mg/kg) was injected intraperitoneally 1 h prior to ventilation. The present results suggested that ROCK1 inhibitor could attenuate mechanical stretch‑induced lung endothelial injury and the phosphorylation of MYPT‑1 in vivo and in vitro. Collectively, the present findings indicated that upregulation of SPHK1 may contribute to VALI in a two‑hit model.
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Affiliation(s)
- Yan Wang
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Ting-Ting Gao
- Department of Anesthesiology, QILU Children's Hospital of Shandong University, Jinan, Shandong 250022, P.R. China
| | - Dun-Feng Xu
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Xiao-Yan Zhu
- Department of Physiology, Second Military Medical University, Shanghai 200433, P.R. China
| | - Wen-Wen Dong
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Zhou Lv
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Yu-Jian Liu
- School of Kinesiology, The Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai 200438, P.R. China
| | - Lai Jiang
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
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Jin J, Ji M, Fu R, Wang M, Xue N, Xiao Q, Hu J, Wang X, Lai F, Yin D, Chen X. Sphingosine-1-Phosphate Receptor Subtype 1 (S1P1) Modulator IMMH001 Regulates Adjuvant- and Collagen-Induced Arthritis. Front Pharmacol 2019; 10:1085. [PMID: 31607926 PMCID: PMC6761374 DOI: 10.3389/fphar.2019.01085] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 08/26/2019] [Indexed: 01/06/2023] Open
Abstract
Sphingosine-1-phosphate receptor subtype 1 (S1P1) is essential for lymphocyte egress from lymphoid organs into systemic circulation and provides a well-defined drug target for autoimmune disorders. IMMH001, also called SYL930, is a specific S1P1/S1P4/S1P5 modulator. Here, we investigated the potential therapeutic effect of IMMH001 on rheumatoid arthritis (RA). IMMH001 rendered periphery blood lymphocytes insensitive to the egress signal from secondary lymphoid organs. Importantly, in both rat adjuvant-induced arthritis and collagen-induced arthritis models, IMMH001 treatment significantly inhibited the progression of RA and RA-associated histological changes in the joints of Sprague-Dawley rats, including hind paw swelling and arthritic index, and thus reduced the pathological score. Furthermore, IMMH001 markedly decreased proinflammatory cytokine and chemokine release from the damaged joints. These data demonstrated that IMMH001 is a promising drug candidate for RA treatment.
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Affiliation(s)
- Jing Jin
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ming Ji
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Rong Fu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mingjin Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Nina Xue
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qiong Xiao
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jingpin Hu
- Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaojian Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fangfang Lai
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dali Yin
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoguang Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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47
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Wennberg AMV, Schafer MJ, LeBrasseur NK, Savica R, Bui HH, Hagen CE, Hollman JH, Petersen RC, Mielke MM. Plasma Sphingolipids are Associated With Gait Parameters in the Mayo Clinic Study of Aging. J Gerontol A Biol Sci Med Sci 2019; 73:960-965. [PMID: 28977376 DOI: 10.1093/gerona/glx139] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Indexed: 12/31/2022] Open
Abstract
Background Disrupted gait has been associated with an increased risk of frailty, disability, and death, but the causal molecular pathways are not well understood. Sphingolipids, including ceramides, are associated with multiple age-related diseases. Ceramides promote atrophy, necrosis, and proteolysis in cellular and animal models, and ceramide C16:0 levels are negatively correlated with muscle mass in men. However, there is a paucity of evidence examining sphingolipids and physical function. Methods We examined the cross-sectional association between plasma ceramides, sphingosine-1-phosphate (S1P), and ceramide/S1P ratios and gait, a robust measure of physical function, in 340 clinically normal participants aged 70 years and older enrolled in the Mayo Clinic Study of Aging. GAITRite® instrumentation was used to measure gait speed, cadence, step width, double support time, and intra-individual stride time variability. Based on previous studies, we hypothesized that higher plasma levels of ceramide C16:0 would be associated with worse gait. Results Multivariable adjusted linear regression models revealed that higher levels of ceramide C16:0 were associated with slower gait speed, decreased cadence, and increased double support time. Conclusions These results suggest an association between plasma ceramide C16:0 and physical function. Longitudinal studies are needed to determine whether elevated ceramide C16:0 can be utilized as a prognostic marker for functional decline.
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Affiliation(s)
| | - Marissa J Schafer
- Department of Physical Medicine and Rehabilitation, Mayo Clinic Rochester, Minnesota
| | - Nathan K LeBrasseur
- Department of Physical Medicine and Rehabilitation, Mayo Clinic Rochester, Minnesota.,Department of Physiology, Mayo Clinic Rochester, Minnesota
| | - Rodolfo Savica
- Department of Health Sciences Research, Mayo Clinic Rochester, Minnesota.,Department of Neurology, Mayo Clinic Rochester, Minnesota
| | - Hai H Bui
- Eli Lilly and Company, Indianapolis, Indiana
| | - Clinton E Hagen
- Department of Health Sciences Research, Mayo Clinic Rochester, Minnesota
| | - John H Hollman
- Department of Physical Medicine and Rehabilitation, Mayo Clinic Rochester, Minnesota
| | | | - Michelle M Mielke
- Department of Health Sciences Research, Mayo Clinic Rochester, Minnesota.,Department of Neurology, Mayo Clinic Rochester, Minnesota
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Schulz ME, Katunaric B, Hockenberry JC, Gutterman DD, Freed JK. Manipulation of the Sphingolipid Rheostat Influences the Mediator of Flow-Induced Dilation in the Human Microvasculature. J Am Heart Assoc 2019; 8:e013153. [PMID: 31462128 PMCID: PMC6755855 DOI: 10.1161/jaha.119.013153] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 07/25/2019] [Indexed: 12/26/2022]
Abstract
Background Elevated levels of ceramide, a sphingolipid known to cause a transition from nitric oxide (NO)- to hydrogen peroxide-dependent flow-induced dilation (FID) in human arterioles, correlate with adverse cardiac events. However, elevations of ceramide are associated with changed concentrations of other sphingolipid metabolites. The effects of sphingolipid metabolites generated through manipulation of this lipid pathway on microvascular function are unknown. We examined the hypothesis that inhibition or activation of the ceramide pathway would determine the mediator of FID. Methods and Results Using videomicroscopy, internal diameter changes were measured in human arterioles collected from discarded adipose tissue during surgery. Inhibition of neutral ceramidase, an enzyme responsible for the hydrolysis of ceramide, favored hydrogen peroxide-dependent FID in arterioles from healthy patients. Using adenoviral technology, overexpression of neutral ceramidase in microvessels from diseased patients resulted in restoration of NO-dependent FID. Exogenous sphingosine-1-phosphate, a sphingolipid with opposing effects of ceramide, also restored NO as the mediator of FID in diseased arterioles. Likewise, exogenous adiponectin, a known activator of neutral ceramidase, or, activation of adiponectin receptors, favored NO-dependent dilation in arterioles collected from patients with coronary artery disease. Conclusions Sphingolipid metabolites play a critical role in determining the mediator of FID in human resistance arterioles. Manipulating the sphingolipid balance towards ceramide versus sphingosine-1-phosphate favors microvascular dysfunction versus restoration of NO-mediated FID, respectively. Multiple targets exist within this biolipid pathway to treat microvascular dysfunction and potentially improve patient outcomes.
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Affiliation(s)
- Mary E. Schulz
- Department of AnesthesiologyMedical College of WisconsinMilwaukeeWI
- Cardiovascular CenterMedical College of WisconsinMilwaukeeWI
| | - Boran Katunaric
- Department of AnesthesiologyMedical College of WisconsinMilwaukeeWI
- Cardiovascular CenterMedical College of WisconsinMilwaukeeWI
| | - Joseph C. Hockenberry
- Cardiovascular CenterMedical College of WisconsinMilwaukeeWI
- Division of CardiologyDepartment of MedicineMedical College of WisconsinMilwaukeeWI
| | - David D. Gutterman
- Cardiovascular CenterMedical College of WisconsinMilwaukeeWI
- Division of CardiologyDepartment of MedicineMedical College of WisconsinMilwaukeeWI
| | - Julie K. Freed
- Department of AnesthesiologyMedical College of WisconsinMilwaukeeWI
- Cardiovascular CenterMedical College of WisconsinMilwaukeeWI
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Simón MV, Prado Spalm FH, Vera MS, Rotstein NP. Sphingolipids as Emerging Mediators in Retina Degeneration. Front Cell Neurosci 2019; 13:246. [PMID: 31244608 PMCID: PMC6581011 DOI: 10.3389/fncel.2019.00246] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 05/17/2019] [Indexed: 12/12/2022] Open
Abstract
The sphingolipids ceramide (Cer), sphingosine-1-phosphate (S1P), sphingosine (Sph), and ceramide-1-phosphate (C1P) are key signaling molecules that regulate major cellular functions. Their roles in the retina have gained increasing attention during the last decade since they emerge as mediators of proliferation, survival, migration, neovascularization, inflammation and death in retina cells. As exacerbation of these processes is central to retina degenerative diseases, they appear as crucial players in their progression. This review analyzes the functions of these sphingolipids in retina cell types and their possible pathological roles. Cer appears as a key arbitrator in diverse retinal pathologies; it promotes inflammation in endothelial and retina pigment epithelium (RPE) cells and its increase is a common feature in photoreceptor death in vitro and in animal models of retina degeneration; noteworthy, inhibiting Cer synthesis preserves photoreceptor viability and functionality. In turn, S1P acts as a double edge sword in the retina. It is essential for retina development, promoting the survival of photoreceptors and ganglion cells and regulating proliferation and differentiation of photoreceptor progenitors. However, S1P has also deleterious effects, stimulating migration of Müller glial cells, angiogenesis and fibrosis, contributing to the inflammatory scenario of proliferative retinopathies and age related macular degeneration (AMD). C1P, as S1P, promotes photoreceptor survival and differentiation. Collectively, the expanding role for these sphingolipids in the regulation of critical processes in retina cell types and in their dysregulation in retina degenerations makes them attractive targets for treating these diseases.
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Affiliation(s)
- M Victoria Simón
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Departamento De Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Argentine National Research Council (CONICET), Bahía Blanca, Argentina
| | - Facundo H Prado Spalm
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Departamento De Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Argentine National Research Council (CONICET), Bahía Blanca, Argentina
| | - Marcela S Vera
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Departamento De Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Argentine National Research Council (CONICET), Bahía Blanca, Argentina
| | - Nora P Rotstein
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Departamento De Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), Argentine National Research Council (CONICET), Bahía Blanca, Argentina
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50
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S1PR1 regulates the switch of two angiogenic modes by VE-cadherin phosphorylation in breast cancer. Cell Death Dis 2019; 10:200. [PMID: 30814488 PMCID: PMC6393557 DOI: 10.1038/s41419-019-1411-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/27/2019] [Accepted: 01/28/2019] [Indexed: 12/12/2022]
Abstract
Angiogenesis in solid tumors is divided into two modes: endothelium-dependent vessel (EDV) and vasculogenic mimicry (VM). Sphingosine-1-phosphate receptor 1 (S1PR1) plays a vital role on EDV in a variety of human tumors. However, the relationship between S1PR1 and VM is not clear. The aim of this study is to investigate S1PR1 on the regulation of EDV and mimicry formation in breast cancer. Here we show that S1PR1 phosphorylates the complex of VE-cadherin to regulate the switch of EDV and mimicry formation. Suppression of S1PR1 impairs EDV, but contributes to the generation of VM, invasion, and metastasis in vivo and vitro. By inhibiting RhoA activation, the S1PR1/VE-cadherin signaling is blocked. S1PR1 controls VE-cadherin expression and EDV via RhoA activation. Moreover, the low expression of S1PR1 correlates with VM and poor prognosis in breast cancer patient. The results show that S1PR1 regulated RhoA activation to accelerate VE-cadherin phosphorylation (Y731), leading to increased EDV and reduced VM in breast cancer. S1PR1 may provide a new thinking direction for antiangiogenic therapy for patients with breast cancer.
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