1
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Kolb AJ, Corridon P, Ullah M, Pfaffenberger ZJ, Xu WM, Winfree S, Sandoval RH, Hato T, Witzmann FA, Mohallem R, Franco J, Aryal UK, Atkinson SJ, Basile DP, Bacallao RL. Sulfotransferase 1C2 Increases Mitochondrial Respiration by Converting Mitochondrial Membrane Cholesterol to Cholesterol Sulfate. Biochemistry 2024. [PMID: 39194960 DOI: 10.1021/acs.biochem.3c00344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
HYPOTHESIS In this communication, we test the hypothesis that sulfotransferase 1C2 (SULT1C2, UniProt accession no. Q9WUW8) can modulate mitochondrial respiration by increasing state-III respiration. METHODS AND RESULTS Using freshly isolated mitochondria, the addition of SULT1C2 and 3-phosphoadenosine 5 phosphosulfate (PAPS) results in an increased maximal respiratory capacity in response to the addition of succinate, ADP, and rotenone. Lipidomics and thin-layer chromatography of mitochondria treated with SULT1C2 and PAPS showed an increase in the level of cholesterol sulfate. Notably, adding cholesterol sulfate at nanomolar concentration to freshly isolated mitochondria also increases maximal respiratory capacity. In vivo studies utilizing gene delivery of SULT1C2 expression plasmids to kidneys result in increased mitochondrial membrane potential and confer resistance to ischemia/reperfusion injury. Mitochondria isolated from gene-transduced kidneys have elevated state-III respiration as compared with controls, thereby recapitulating results obtained with mitochondrial fractions treated with SULT1C2 and PAPS. CONCLUSION SULT1C2 increases mitochondrial respiratory capacity by modifying cholesterol, resulting in increased membrane potential and maximal respiratory capacity. This finding uncovers a unique role of SULT1C2 in cellular physiology and extends the role of sulfotransferases in modulating cellular metabolism.
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Affiliation(s)
- Alexander J Kolb
- Department of Biology, School of Science, Indiana University-Indianapolis, Indianapolis, Indiana 46202, United States
| | - Peter Corridon
- Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Mahbub Ullah
- Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
| | | | - Wei Min Xu
- Division of Nephrology, Indiana Center for Biological Microscopy, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
| | - Seth Winfree
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Ruben H Sandoval
- Division of Nephrology, Indiana Center for Biological Microscopy, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
| | - Takeshi Hato
- Division of Nephrology, Indiana Center for Biological Microscopy, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
| | - Frank A Witzmann
- Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
| | - Rodrigo Mohallem
- Department of Comparative Pathobiology, College of Veterinary Medicine, Bindley Bioscience Center, Purdue University, West Lafayette, Indiana 47907, United States
| | | | - Uma K Aryal
- Department of Comparative Pathobiology, College of Veterinary Medicine, Bindley Bioscience Center, Purdue University, West Lafayette, Indiana 47907, United States
- Purdue Proteomics Facility, Bindley Biosciences Center, Purdue University, West Lafayette, Indiana 47907, United States
| | - Simon J Atkinson
- Department of Neuroscience, Physiology and Behavior, University of California, Davis, California 95616, United States
| | - David P Basile
- Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
| | - Robert L Bacallao
- Division of Nephrology, Indiana Center for Biological Microscopy, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
- Division of Nephrology, Richard Roudebush VA Medical Center, Indianapolis, Indiana 46202, United States
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2
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Otani T, Mizokami A, Takeuchi H, Inai T, Hirata M. The role of adhesion molecules in osteocalcin-induced effects on glucose and lipid metabolism in adipocytes. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119701. [PMID: 38417588 DOI: 10.1016/j.bbamcr.2024.119701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/08/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
Recent findings suggest that uncarboxylated osteocalcin (GluOC) promotes glucose and lipid metabolism via its putative receptor GPRC6A; however, its direct effect on adipocytes remains elusive. In this study, we elucidated the effects of GluOC on adipocytes, with an emphasis on the role of cell adhesion molecules. We determined that GluOC promoted the expression of adipocyte adhesion molecule (ACAM) and its transcription factor Krüppel-like factor 4 and enhanced the cortical actin filament assembly, which ameliorated lipid droplet hypertrophy. Additionally, GluOC upregulated the expression of integrin αVβ3 and activation of focal adhesion kinase (FAK) and prevented insulin receptor substrate 1 (IRS1) degradation by inhibiting the ubiquitin-proteasome system via the FAK-PLC-PKC axis, which activated IRS1-Akt-mediated glucose transporter 4 (GLUT4) transport. Furthermore, we showed that GluOC elevated the expression of the insulin-independent glucose transporters GLUT1 and GLUT8, which facilitated insulin stimulation-independent glucose transport. The GluOC-induced activation of integrin αVβ3 signaling promoted microtubule assembly, which improved glucose and lipid metabolism via its involvement in intracellular vesicular transport. GluOC treatment also suppressed collagen type 1 formation, which might prevent adipose tissue fibrosis in obese individuals. Overall, our results imply that GluOC promotes glucose and lipid metabolism via ACAM, integrin αVβ3, and GLUT1 and 8 expression, directly affecting adipocytes.
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Affiliation(s)
- Takahito Otani
- Division of Functional Structure, Department of Morphological Biology, Fukuoka Dental College, Fukuoka 814-0193, Japan.
| | - Akiko Mizokami
- Oral Health/Brain Health/Total Health Research Center, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan
| | - Hiroshi Takeuchi
- Division of Applied Pharmacology, Kyushu Dental University, Kitakyushu 803-8580, Japan
| | - Tetsuichiro Inai
- Division of Functional Structure, Department of Morphological Biology, Fukuoka Dental College, Fukuoka 814-0193, Japan
| | - Masato Hirata
- Oral Medicine Research Center, Fukuoka Dental College, Fukuoka 814-0193, Japan.
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3
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Cook I, Leyh TS. Sulfotransferase 2B1b, Sterol Sulfonation, and Disease. Pharmacol Rev 2023; 75:521-531. [PMID: 36549865 PMCID: PMC10158503 DOI: 10.1124/pharmrev.122.000679] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 10/18/2022] [Accepted: 12/07/2022] [Indexed: 12/24/2022] Open
Abstract
The primary function of human sulfotransferase 2B1b (SULT2B1b) is to sulfonate cholesterol and closely related sterols. SULT2B1b sterols perform a number of essential cellular functions. Many are signaling molecules whose activities are redefined by sulfonation-allosteric properties are switched "on" or "off," agonists are transformed into antagonists, and vice versa. Sterol sulfonation is tightly coupled to cholesterol homeostasis, and sulfonation imbalances are causally linked to cholesterol-related diseases including certain cancers, Alzheimer disease, and recessive X-linked ichthyosis-an orphan skin disease. Numerous studies link SULT2B1b activity to disease-relevant molecular processes. Here, these multifaceted processes are integrated into metabolic maps that highlight their interdependence and how their actions are regulated and coordinated by SULT2B1b oxysterol sulfonation. The maps help explain why SULT2B1b inhibition arrests the growth of certain cancers and make the novel prediction that SULT2B1b inhibition will suppress production of amyloid β (Aβ) plaques and tau fibrils while simultaneously stimulating Aβ plaque phagocytosis. SULT2B1b harbors a sterol-selective allosteric site whose structure is discussed as a template for creating inhibitors to regulate SULT2B1b and its associated biology. SIGNIFICANCE STATEMENT: Human sulfotransferase 2B1b (SULT2B1b) produces sterol-sulfate signaling molecules that maintain the homeostasis of otherwise pro-disease processes in cancer, Alzheimer disease, and X-linked ichthyosis-an orphan skin disease. The functions of sterol sulfates in each disease are considered and codified into metabolic maps that explain the interdependencies of the sterol-regulated networks and their coordinate regulation by SULT2B1b. The structure of the SULT2B1b sterol-sensing allosteric site is discussed as a means of controlling sterol sulfate biology.
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Affiliation(s)
- Ian Cook
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York
| | - Thomas S Leyh
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York
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4
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Auguet T, Bertran L, Capellades J, Abelló S, Aguilar C, Sabench F, del Castillo D, Correig X, Yanes O, Richart C. LC/MS-Based Untargeted Metabolomics Analysis in Women with Morbid Obesity and Associated Type 2 Diabetes Mellitus. Int J Mol Sci 2023; 24:7761. [PMID: 37175468 PMCID: PMC10177925 DOI: 10.3390/ijms24097761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/17/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023] Open
Abstract
Obesity is a chronic and complex disease, with an increasing incidence worldwide that is associated with metabolic disorders such as type 2 diabetes mellitus (T2DM). Thus, it is important to determine the differences between metabolically healthy obese individuals and those with metabolic disorders. The aim of this study was to perform an untargeted metabolomics assay in women with morbid obesity (MO) compared to a normal weight group, and to differentiate the metabolome of these women with MO who present with T2DM. We carried out a liquid chromatography-mass spectrometry-based untargeted metabolomics assay using serum samples of 209 Caucasian women: 73 with normal weight and 136 with MO, of which 71 had T2DM. First, we found increased levels of choline and acylglycerols and lower levels of bile acids, steroids, ceramides, glycosphingolipids, lysophosphatidylcholines, and lysophosphatidylethanolamines in MO women than in the control group. Then, in MO women with T2DM, we found increased levels of glutamate, propionyl-carnitine, bile acids, ceramides, lysophosphatidylcholine 14:0, phosphatidylinositols and phosphoethanolamines, and lower levels of Phe-Ile/Leu. Thus, we found metabolites with opposite trends of concentration in the two metabolomic analyses. These metabolites could be considered possible new factors of study in the pathogenesis of MO and associated T2DM in women.
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Affiliation(s)
- Teresa Auguet
- Grup de Recerca GEMMAIR (AGAUR)-Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), IISPV, 43005 Tarragona, Spain; (T.A.); (L.B.); (C.A.); (F.S.); (D.d.C.)
| | - Laia Bertran
- Grup de Recerca GEMMAIR (AGAUR)-Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), IISPV, 43005 Tarragona, Spain; (T.A.); (L.B.); (C.A.); (F.S.); (D.d.C.)
| | - Jordi Capellades
- Department of Electronic Engineering, Universitat Rovira i Virgili (URV), IISPV, 43007 Tarragona, Spain; (J.C.); (X.C.); (O.Y.)
| | - Sonia Abelló
- Servei de Recursos Científics i Tècnics, Universitat Rovira i Virgili (URV), 43007 Tarragona, Spain;
| | - Carmen Aguilar
- Grup de Recerca GEMMAIR (AGAUR)-Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), IISPV, 43005 Tarragona, Spain; (T.A.); (L.B.); (C.A.); (F.S.); (D.d.C.)
| | - Fàtima Sabench
- Grup de Recerca GEMMAIR (AGAUR)-Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), IISPV, 43005 Tarragona, Spain; (T.A.); (L.B.); (C.A.); (F.S.); (D.d.C.)
- Unitat de Cirurgia, Facultad de Medicina i Ciències de la Salut, Hospital Universitari Sant Joan de Reus, Universitat Rovira i Virgili (URV), IISPV, 43204 Reus, Spain
| | - Daniel del Castillo
- Grup de Recerca GEMMAIR (AGAUR)-Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), IISPV, 43005 Tarragona, Spain; (T.A.); (L.B.); (C.A.); (F.S.); (D.d.C.)
- Unitat de Cirurgia, Facultad de Medicina i Ciències de la Salut, Hospital Universitari Sant Joan de Reus, Universitat Rovira i Virgili (URV), IISPV, 43204 Reus, Spain
| | - Xavier Correig
- Department of Electronic Engineering, Universitat Rovira i Virgili (URV), IISPV, 43007 Tarragona, Spain; (J.C.); (X.C.); (O.Y.)
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, 43204 Madrid, Spain
| | - Oscar Yanes
- Department of Electronic Engineering, Universitat Rovira i Virgili (URV), IISPV, 43007 Tarragona, Spain; (J.C.); (X.C.); (O.Y.)
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, 43204 Madrid, Spain
| | - Cristóbal Richart
- Grup de Recerca GEMMAIR (AGAUR)-Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), IISPV, 43005 Tarragona, Spain; (T.A.); (L.B.); (C.A.); (F.S.); (D.d.C.)
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5
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Zhao J, Sun Y, Yuan C, Li T, Liang Y, Zou H, Zhang J, Ren L. Quercetin ameliorates hepatic fat accumulation in high-fat diet-induced obese mice via PPARs. Food Funct 2023; 14:1674-1684. [PMID: 36691903 DOI: 10.1039/d2fo03013f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
As a natural pigment in food, quercetin possesses multiple biological activities and plays a crucial role in regulating metabolic syndrome. Herein, we aim to explore the potential mechanism of quercetin to ameliorate hepatic fat accumulation. In vivo experiments showed that quercetin significantly relieved inflammation response by decreasing the serum TNF-α and IL-6 levels and also improved high-fat diet-induced hepatic steatosis without other organ injuries. Quercetin can effectively reduce lipid aggregation and down-regulate the protein expression of PCK1 in HepG2 cells induced by oleic acid and palmitic acid, indicating that inhibiting gluconeogenesis leads to hepatic fat accumulation reduction. Furthermore, molecular docking results suggested that quercetin can bind to both PPARα and PPARγ, with an even more potent binding affinity than indeglitazar, a pan-agonist of PPARs. In conclusion, quercetin may regulate gluconeogenesis to ameliorate hepatic fat accumulation via targeting PPARα/γ.
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Affiliation(s)
- Jingqi Zhao
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Yantong Sun
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
| | - Cuiping Yuan
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun 130033, China
| | - Tiezhu Li
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun 130033, China
| | - Yuan Liang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Haoyang Zou
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Jie Zhang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Li Ren
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
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6
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Wang SS, Xu X, Lu AX, Li WH, Liu JX, Liu C, Yan CH. Amelioration of cholesterol sulfate for lead-induced CTX cell apoptosis based on BDNF signaling pathway mediated cholesterol metabolism. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 248:114307. [PMID: 36423370 DOI: 10.1016/j.ecoenv.2022.114307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 11/12/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
Lead (Pb), as a deleterious heavy metal, ubiquitously exists in environment and industry, which engenders multi-organ disfunction, especially the brain of infants who are vulnerable to attack from lead-induced neurotoxicity. Although cholesterol sulfate (CS) is crucial constituent of cell membranes and precursor of neurosteroids, which maintains the function and survival of neurons, the role of CS in lead-induced neurological damage still remains incomplete. In this work, Rat Brain Astrocytes cell line (CTX cells) was applied into exploration that protective effects of CS on CTX cell apoptosis induced by lead via the regulation of BDNF/TrkB signaling pathway mediated cholesterol metabolism. We found that CTX cells exposed to lead manifested apparent cytotoxicity, where the viability of CTX cells was significantly suppressed, accompanied with the elevation of apoptosis, in response to a trend towards increases in reactive oxygen species (ROS) production and pro-apoptotic protein Cleaved-caspase3, synchronized with the decline in anti-apoptotic protein Bcl-2. Moreover, accumulation of lead in CTX cells showed a dose-dependent increase, and meanwhile, decrements in cholesterol content occurred along with increase in lead exposure, in which expressions of cholesterol metabolism related proteins and transcriptions of its genes (SREBP2, LDLR, and HMGCR) were diminished. Furthermore, BDNF signaling pathway was obviously blocked after lead exposure, down-regulating expressions of proteins BDNF and TrkB. However, pretreatment with CS detoxified the negative impacts of lead-invoked CTX cell damage, acting as an effective remedy for apoptosis, imbalance of cholesterol metabolism and inhibition of BDNF signaling pathway. In addition, the relationship between BDNF signaling pathway and cholesterol metabolism was further verified, in which cholesterol metabolism related proteins and genes were promoted significantly after the activation of BDNF/TrkB signaling pathway using 7,8-Dihydroxyflavone (7,8-DHF), thereby detoxifying lead-induced CTX cell injury. However, the pretreatment of TrkB inhibitor ANA-12 offset the promotion of 7,8-DHF and ultimately inhibit cholesterol metabolism. Overall, our study demonstrated that CS could initiate the BDNF/TrkB signaling pathway, regulating the cholesterol metabolism against CTX cell apoptosis invoked by lead.
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Affiliation(s)
- Su-Su Wang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; School of Public Health, Shanghai Jiao Tong University, Shanghai, China
| | - Xi Xu
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - An-Xin Lu
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wan-He Li
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; State Key Laboratory of Bioreactor Engineering and Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Jun-Xia Liu
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen Liu
- School of Public Health, Xuzhou Medical University, Jiangsu, China
| | - Chong-Huai Yan
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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7
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Cholesterol sulfate alleviates ulcerative colitis by promoting cholesterol biosynthesis in colonic epithelial cells. Nat Commun 2022; 13:4428. [PMID: 35908039 PMCID: PMC9338998 DOI: 10.1038/s41467-022-32158-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 07/18/2022] [Indexed: 12/04/2022] Open
Abstract
Cholesterol sulfate, produced by hydroxysteroid sulfotransferase 2B1 (SULT2B1), is highly abundant in the intestine. Herein, we study the functional role and underlying intestinal epithelial repair mechanisms of cholesterol sulfate in ulcerative colitis. The levels of cholesterol and cholesterol sulfate, as well as the expression of Sult2b1 and genes involved in cholesterol biosynthesis, are significantly higher in inflamed tissues from patients with ulcerative colitis than in intestinal mucosa from healthy controls. Cholesterol sulfate in the gut and circulation is mainly catalyzed by intestinal epithelial SULT2B1. Specific deletion of the Sult2b1 gene in the intestinal epithelial cells aggravates dextran sulfate sodium-induced colitis; however, dietary supplementation with cholesterol sulfate ameliorates this effect in acute and chronic ulcerative colitis in mice. Cholesterol sulfate promotes cholesterol biosynthesis by binding to Niemann-Pick type C2 protein and activating sterol regulatory element binding protein 2 in colonic epithelial cells, thereby alleviates ulcerative colitis. In conclusion, cholesterol sulfate contributes to the healing of the mucosal barrier and exhibits therapeutic efficacy against ulcerative colitis in mice. New treatment strategies are required for ulcerative colitis. Here the authors show in mouse models that cholesterol sulfate, an endogenous active cholesterol derivative, contributes to the healing of the mucosal barrier by promoting cholesterol biosynthesis in colonic epithelial cells and exhibits therapeutic efficacy against ulcerative colitis.
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Zhang X, Deng D, Cui D, Liu Y, He S, Zhang H, Xie Y, Yu X, Yang S, Chen Y, Su Z. Cholesterol Sulfate Exerts Protective Effect on Pancreatic β-Cells by Regulating β-Cell Mass and Insulin Secretion. Front Pharmacol 2022; 13:840406. [PMID: 35308228 PMCID: PMC8930834 DOI: 10.3389/fphar.2022.840406] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 02/04/2022] [Indexed: 12/04/2022] Open
Abstract
Rational: Cholesterol sulfate (CS) is the most abundant known sterol sulfate in human plasma, and it plays a significant role in the control of metabolism and inflammatory response, which contribute to the pathogenesis of insulin resistance, β-cell dysfunction and the resultant development of diabetes. However, the role of CS in β-cells and its effect on the development of diabetes remain unknown. Here, we determined the physiological function of CS in pancreatic β-cell homeostasis. Materials and Methods: Blood CS levels in streptozotocin (STZ)- or high-fat diet-induced diabetic mice and patients with type 1 or 2 diabetes were determined by LC-MS/MS. The impact of CS on β-cell mass and insulin secretion was investigated in vitro in isolated mouse islets and the β-cell line INS-1 and in vivo in STZ-induced diabetic mice. The molecular mechanism of CS was explored by viability assay, EdU incorporation analysis, flow cytometry, intracellular Ca2+ influx analysis, mitochondrial membrane potential and cellular ROS assays, and metabolism assay kits. Results: Plasma CS levels in mice and humans were significantly elevated under diabetic conditions. CS attenuated diabetes in a low-dose STZ-induced mouse model. Mechanistically, CS promoted β-cell proliferation and protected β-cells against apoptosis under stressful conditions, which in turn preserved β-cell mass. In addition, CS supported glucose transporter-2 (GLUT2) expression and mitochondrial integrity, which then resulted in a less reactive oxygen species (ROS) generation and an increase in ATP production, thereby enabling insulin secretion machinery in the islets to function adequately. Conclusion: This study revealed a novel dual role of CS in integrating β-cell survival and cell function, suggesting that CS might offer a physiologic approach to preserve β-cells and protect against the development of diabetes mellitus.
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Affiliation(s)
- Xueping Zhang
- Molecular Medicine Research Center and National Clinical Research Center for Geriatrics, West China Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Dan Deng
- Molecular Medicine Research Center and National Clinical Research Center for Geriatrics, West China Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Daxin Cui
- Molecular Medicine Research Center and National Clinical Research Center for Geriatrics, West China Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Yin Liu
- Molecular Medicine Research Center and National Clinical Research Center for Geriatrics, West China Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Siyuan He
- Molecular Medicine Research Center and National Clinical Research Center for Geriatrics, West China Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Hongmei Zhang
- Molecular Medicine Research Center and National Clinical Research Center for Geriatrics, West China Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Yaorui Xie
- Department of Clinical Laboratory, Sichuan Provincial Peoples Hospital Jinniu Hospital, Chengdu, China
| | - Xiaoqian Yu
- Molecular Medicine Research Center and National Clinical Research Center for Geriatrics, West China Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Shanshan Yang
- Molecular Medicine Research Center and National Clinical Research Center for Geriatrics, West China Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Yulong Chen
- Molecular Medicine Research Center and National Clinical Research Center for Geriatrics, West China Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Zhiguang Su
- Molecular Medicine Research Center and National Clinical Research Center for Geriatrics, West China Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
- *Correspondence: Zhiguang Su,
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9
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Li Y, Wang T, Shi HH, Wang YM, Xue CH, Huang QR, Zhang TT. Absorption, Pharmacokinetics, Tissue Distribution, and Excretion Profiles of Sea Cucumber-Derived Sulfated Sterols in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:480-487. [PMID: 34936372 DOI: 10.1021/acs.jafc.1c04218] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Sea cucumber-derived sulfated sterols exhibited more significant bioactivities compared to plant sterols due to the distinctive structure of the sulfate group at the C-3 position; however, their absorption, pharmacokinetics, tissue distribution, and excretion profiles are unknown, which limits the analysis of molecular mechanisms related to their unique activities. In this study, the absorption characteristics of sea cucumber sterols were determined by oral gavage administration, and their pharmacokinetics, excretion, and tissue distribution were studied by tail vein injection. The results showed that SS1 and SS2 reached the peak at 3 h (20.14 ± 1.2 μg/mL) and 4 h (13.32 ± 0.9 μg/mL) in serum, respectively, after oral gavage administration, suggesting the faster absorption rate of SS1 than SS2 due to the difference in the side-chain groups. Besides, lipid-containing food media improved the digestion and absorption rates of sea cucumber sterols. Moreover, SS1 exhibited a relatively longer duration of efficacy than SS2, and they were almost completely excreted within 9 h through urine. Additionally, sea cucumber sterols were found to be mainly accumulated in the liver (P < 0.05), followed by the kidney and spleen. These findings might provide a theoretical basis for the research and development of functional foods and nutraceuticals associated with sea cucumber sterols.
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Affiliation(s)
- Yue Li
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
| | - Teng Wang
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
| | - Hao-Hao Shi
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
| | - Yu-Ming Wang
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237 Shandong Province, P. R. China
| | - Chang-Hu Xue
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237 Shandong Province, P. R. China
| | - Qing-Rong Huang
- Department of Food Science, Rutgers State University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
| | - Tian-Tian Zhang
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, P. R. China
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10
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Yuliana ND, Hunaefi D, Goto M, Ishikawa YT, Verpoorte R. Measuring the health effects of food by metabolomics. Crit Rev Food Sci Nutr 2021; 62:6359-6373. [PMID: 33749380 DOI: 10.1080/10408398.2021.1901256] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Metabolomics of human biological fluids or tissues is used to discover markers for diseases by comparing the metabolome of the patients against healthy individuals. Ultimately, these markers can be used in drug discovery to determine how medications normalize (at least in part) the human metabolome at specific disease stages to homeostatic. Likewise, the health effects of food can be studied. Even metabolomics of the food can be combined with metabolomics of the treated patients to correlate compounds from food with measurable health effects from clinical studies. Various chemometric analyses of these metabolomics data are used to identify markers for diseases and to obtain evidence for health effects. This review discusses recent researches (published from 2013 to 2021) on whether specific dietary intervention to humans suffering from metabolic disorders may improve their pathological status. The scope is limited to those associated with major lifestyle diseases such as diabetes, obesity, and cardiovascular diseases, for which food is thought may have detrimental as well as beneficial effects on human health. It includes metabolites characterization of different biological samples such as the human serum/plasma, urine, saliva, feces, or ileal fluid. Whether the study results supported the claimed health benefits and whether the research was conducted with appropriate study design, was criticized.
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Affiliation(s)
- Nancy Dewi Yuliana
- Department of Food Science and Technology, IPB University, IPB Darmaga Campus, Bogor, Indonesia.,Halal Science Center IPB University, IPB Baranangsiang Campus, Bogor, Indonesia
| | - Dase Hunaefi
- Department of Food Science and Technology, IPB University, IPB Darmaga Campus, Bogor, Indonesia.,Halal Science Center IPB University, IPB Baranangsiang Campus, Bogor, Indonesia
| | - Masao Goto
- Functionality Evaluation Unit, Food Function Division, Food Research Institute, NARO, Tsukuba-Ibaraki, Japan
| | - Yuko Takano Ishikawa
- Functionality Evaluation Unit, Food Function Division, Food Research Institute, NARO, Tsukuba-Ibaraki, Japan
| | - Robert Verpoorte
- Natural Products Laboratory, Institute of Biology, Leiden University, Leiden, RA, The Netherlands
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11
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Wang Y, Lin W, Brown JE, Chen L, Pandak WM, Hylemon PB, Ren S. 25-Hydroxycholesterol 3-sulfate is an endogenous ligand of DNA methyltransferases in hepatocytes. J Lipid Res 2021; 62:100063. [PMID: 33705741 PMCID: PMC8058565 DOI: 10.1016/j.jlr.2021.100063] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/04/2021] [Accepted: 02/24/2021] [Indexed: 12/23/2022] Open
Abstract
The oxysterol sulfate, 25-hydroxycholesterol 3-sulfate (25HC3S), has been shown to play an important role in lipid metabolism, inflammatory response, and cell survival. However, the mechanism(s) of its function in global regulation is unknown. The current study investigates the molecular mechanism by which 25HC3S functions as an endogenous epigenetic regulator. To study the effects of oxysterols/sterol sulfates on epigenetic modulators, 12 recombinant epigenetic enzymes were used to determine whether 25HC3S acts as their endogenous ligand. The enzyme kinetic study demonstrated that 25HC3S specifically inhibited DNA methyltransferases (DNMTs), DNMT1, DNMT3a, and DNMT3b with IC50 of 4.04, 3.03, and 9.05 × 10-6 M, respectively. In human hepatocytes, high glucose induces lipid accumulation by increasing promoter CpG methylation of key genes involved in development of nonalcoholic fatty liver diseases. Using this model, whole genome bisulfate sequencing analysis demonstrated that 25HC3S converts the 5mCpG to CpG in the promoter regions of 1,074 genes. In addition, we observed increased expression of the demethylated genes, which are involved in the master signaling pathways, including MAPK-ERK, calcium-AMP-activated protein kinase, and type II diabetes mellitus pathways. mRNA array analysis showed that the upregulated genes encoded for key elements of cell survival; conversely, downregulated genes encoded for key enzymes that decrease lipid biosynthesis. Taken together, our results indicate that the expression of these key elements and enzymes are regulated by the demethylated signaling pathways. We summarized that 25HC3S DNA demethylation of 5mCpG in promoter regions is a potent regulatory mechanism.
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Affiliation(s)
- Yaping Wang
- Department of Internal Medicine, Virginia Commonwealth University/McGuire VA Medical Centre, Richmond, VA, USA; College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Weiqi Lin
- DURECT Corporation, Cupertino, CA, USA
| | | | - Lanming Chen
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Williams M Pandak
- Department of Internal Medicine, Virginia Commonwealth University/McGuire VA Medical Centre, Richmond, VA, USA
| | - Phillip B Hylemon
- Department of Internal Medicine, Virginia Commonwealth University/McGuire VA Medical Centre, Richmond, VA, USA
| | - Shunlin Ren
- Department of Internal Medicine, Virginia Commonwealth University/McGuire VA Medical Centre, Richmond, VA, USA.
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12
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Wang Y, Li X, Ren S. Cholesterol Metabolites 25-Hydroxycholesterol and 25-Hydroxycholesterol 3-Sulfate Are Potent Paired Regulators: From Discovery to Clinical Usage. Metabolites 2020; 11:metabo11010009. [PMID: 33375700 PMCID: PMC7823450 DOI: 10.3390/metabo11010009] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/18/2020] [Accepted: 12/23/2020] [Indexed: 02/07/2023] Open
Abstract
Oxysterols have long been believed to be ligands of nuclear receptors such as liver × receptor (LXR), and they play an important role in lipid homeostasis and in the immune system, where they are involved in both transcriptional and posttranscriptional mechanisms. However, they are increasingly associated with a wide variety of other, sometimes surprising, cell functions. Oxysterols have also been implicated in several diseases such as metabolic syndrome. Oxysterols can be sulfated, and the sulfated oxysterols act in different directions: they decrease lipid biosynthesis, suppress inflammatory responses, and promote cell survival. Our recent reports have shown that oxysterol and oxysterol sulfates are paired epigenetic regulators, agonists, and antagonists of DNA methyltransferases, indicating that their function of global regulation is through epigenetic modification. In this review, we explore our latest research of 25-hydroxycholesterol and 25-hydroxycholesterol 3-sulfate in a novel regulatory mechanism and evaluate the current evidence for these roles.
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Affiliation(s)
- Yaping Wang
- Department of Internal Medicine, McGuire Veterans Affairs Medical Center, Virginia Commonwealth University, Richmond, VA 23249, USA;
| | - Xiaobo Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China;
| | - Shunlin Ren
- Department of Internal Medicine, McGuire Veterans Affairs Medical Center, Virginia Commonwealth University, Richmond, VA 23249, USA;
- Correspondence: ; Tel.: +1-(804)-675-5000 (ext. 4973)
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13
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Oliviero F, Lukowicz C, Boussadia B, Forner-Piquer I, Pascussi JM, Marchi N, Mselli-Lakhal L. Constitutive Androstane Receptor: A Peripheral and a Neurovascular Stress or Environmental Sensor. Cells 2020; 9:E2426. [PMID: 33171992 PMCID: PMC7694609 DOI: 10.3390/cells9112426] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 10/27/2020] [Accepted: 11/02/2020] [Indexed: 12/11/2022] Open
Abstract
Xenobiotic nuclear receptors (NR) are intracellular players involved in an increasing number of physiological processes. Examined and characterized in peripheral organs where they govern metabolic, transport and detoxification mechanisms, accumulating data suggest a functional expression of specific NR at the neurovascular unit (NVU). Here, we focus on the Constitutive Androstane Receptor (CAR), expressed in detoxifying organs such as the liver, intestines and kidneys. By direct and indirect activation, CAR is implicated in hepatic detoxification of xenobiotics, environmental contaminants, and endogenous molecules (bilirubin, bile acids). Importantly, CAR participates in physiological stress adaptation responses, hormonal and energy homeostasis due to glucose and lipid sensing. We next analyze the emerging evidence supporting a role of CAR in NVU cells including the blood-brain barrier (BBB), a key vascular interface regulating communications between the brain and the periphery. We address the emerging concept of how CAR may regulate specific P450 cytochromes at the NVU and the associated relevance to brain diseases. A clear understanding of how CAR engages during pathological conditions could enable new mechanistic, and perhaps pharmacological, entry-points within a peripheral-brain axis.
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Affiliation(s)
- Fabiana Oliviero
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31027 Toulouse, France; (F.O.); (C.L.)
| | - Céline Lukowicz
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31027 Toulouse, France; (F.O.); (C.L.)
| | - Badreddine Boussadia
- Cerebrovascular and Glia Research, Institute of Functional Genomics (UMR 5203 CNRS–U 1191 INSERM, University of Montpellier), 34094 Montpellier, France; (B.B.); (I.F.-P.); (J.-M.P.)
| | - Isabel Forner-Piquer
- Cerebrovascular and Glia Research, Institute of Functional Genomics (UMR 5203 CNRS–U 1191 INSERM, University of Montpellier), 34094 Montpellier, France; (B.B.); (I.F.-P.); (J.-M.P.)
| | - Jean-Marc Pascussi
- Cerebrovascular and Glia Research, Institute of Functional Genomics (UMR 5203 CNRS–U 1191 INSERM, University of Montpellier), 34094 Montpellier, France; (B.B.); (I.F.-P.); (J.-M.P.)
| | - Nicola Marchi
- Cerebrovascular and Glia Research, Institute of Functional Genomics (UMR 5203 CNRS–U 1191 INSERM, University of Montpellier), 34094 Montpellier, France; (B.B.); (I.F.-P.); (J.-M.P.)
| | - Laila Mselli-Lakhal
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31027 Toulouse, France; (F.O.); (C.L.)
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14
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Zhang HJ, Chen C, Ding L, Shi HH, Wang CC, Xue CH, Zhang TT, Wang YM. Sea cucumbers-derived sterol sulfate alleviates insulin resistance and inflammation in high-fat-high-fructose diet-induced obese mice. Pharmacol Res 2020; 160:105191. [PMID: 32911073 DOI: 10.1016/j.phrs.2020.105191] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/08/2020] [Accepted: 08/31/2020] [Indexed: 12/12/2022]
Abstract
Sea cucumbers are widely consumed in traditional medicine and food. Sea cucumbers-derived sulfated sterol exhibits a sulfate group at C-3 position, which is different from phytosterol with a hydroxyl group. However, the effect of sterol sulfate on metabolic syndrome remains unknown. The purpose of the present study is to investigate the alleviation of sterol sulfate on high-fat-high-fructose diet (HFFD)-induced insulin resistance and inflammation. After 2 weeks feeding with HFFD, male C57BL/6J mice were continuously fed with HFFD plus 0.4 % (w/w) sterol sulfate or phytosterol for 6 weeks. The OGTT was carried out at 7 weeks. At the end of the experimental period, the changes of glycogen, circulating glucose, insulin, pro-inflammatory cytokine and adiponectin were measured. H&E staining was used to observe the morphological changes in adipose tissue. Furthermore, the underlying molecular mechanisms were investigated. Dietary sterol sulfate was superior to phytosterol in reducing body weight gain, adipocyte hypertrophy, and levels of circulating glucose and insulin, as well as increasing the glycogen content of tissues. Furthermore, sterol sulfate ameliorated insulin resistance mainly due to the inhibition of gluconeogenesis, the promotion of glycogen synthesis and GLUT4 translocation by activating PI3K/Akt signaling pathway. Additionally, sterol sulfate effectively attenuated inflammation by increasing serum adiponectin and reducing pro-inflammatory cytokine release. Sterol sulfate exhibited a more significant effect than phytosterol in alleviating HFFD -induced insulin resistance and inflammation, which might be closely related to the sulfate group. The results might provide insights into the prevention and alleviation of metabolic syndrome.
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Affiliation(s)
- Hui-Juan Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China
| | - Cheng Chen
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China
| | - Lin Ding
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China
| | - Hao-Hao Shi
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China
| | - Cheng-Cheng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China
| | - Chang-Hu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China; Laboratory of Marine Drugs & Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, Shandong Province, China
| | - Tian-Tian Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China.
| | - Yu-Ming Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China; Laboratory of Marine Drugs & Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, Shandong Province, China.
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15
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Sanchez LD, Pontini L, Marinozzi M, Sanchez-Aranguren LC, Reis A, Dias IHK. Cholesterol and oxysterol sulfates: Pathophysiological roles and analytical challenges. Br J Pharmacol 2020; 178:3327-3341. [PMID: 32762060 DOI: 10.1111/bph.15227] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/01/2020] [Accepted: 07/20/2020] [Indexed: 01/18/2023] Open
Abstract
Cholesterol and oxysterol sulfates are important regulators of lipid metabolism, inflammation, cell apoptosis, and cell survival. Among the sulfate-based lipids, cholesterol sulfate (CS) is the most studied lipid both quantitatively and functionally. Despite the importance, very few studies have analysed and linked the actions of oxysterol sulfates to their physiological and pathophysiological roles. Overexpression of sulfotransferases confirmed the formation of a range of oxysterol sulfates and their antagonistic effects on liver X receptors (LXRs) prompting further investigations how are the changes to oxysterol/oxysterol sulfate homeostasis can contribute to LXR activity in the physiological milieu. Here, we aim to bring together for novel roles of oxysterol sulfates, the available techniques and the challenges associated with their analysis. Understanding the oxysterol/oxysterol sulfate levels and their pathophysiological mechanisms could lead to new therapeutic targets for metabolic diseases. LINKED ARTICLES: This article is part of a themed issue on Oxysterols, Lifelong Health and Therapeutics. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.16/issuetoc.
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Affiliation(s)
| | - Lorenzo Pontini
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Maura Marinozzi
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | | | - Ana Reis
- LAQV/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
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16
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Xie Y, Xie W. The Role of Sulfotransferases in Liver Diseases. Drug Metab Dispos 2020; 48:742-749. [PMID: 32587100 PMCID: PMC7469250 DOI: 10.1124/dmd.120.000074] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 06/08/2020] [Indexed: 12/19/2022] Open
Abstract
The cytosolic sulfotransferases (SULTs) are phase II conjugating enzymes that catalyze the transfer of a sulfonate group from the universal sulfate donor 3'-phosphoadenosine-5'-phosphosulfate to a nucleophilic group of their substrates to generate hydrophilic products. Sulfation has a major effect on the chemical and functional homeostasis of substrate chemicals. SULTs are widely expressed in metabolically active or hormonally responsive tissues, including the liver and many extrahepatic tissues. The expression of SULTs exhibits isoform-, tissue-, sex-, and development-specific regulations. SULTs display a broad range of substrates including xenobiotics and endobiotics. The expression of SULTs has been shown to be transcriptionally regulated by members of the nuclear receptor superfamily, such as the peroxisome proliferator-activated receptors, pregnane X receptor, constitutive androstane receptor, vitamin D receptor, liver X receptors, farnesoid X receptor, retinoid-related orphan receptors, estrogen-related receptors, and hepatocyte nuclear factor 4α These nuclear receptors can be activated by numerous xenobiotics and endobiotics, such as fatty acids, bile acids, and oxysterols, many of which are substrates of SULTs. Due to their metabolism of xenobiotics and endobiotics, SULTs and their regulations are implicated in the pathogenesis of many diseases. This review is aimed to summarize the central role of major SULTs, including the SULT1 and SULT2 subfamilies, in the pathophysiology of liver and liver-related diseases. SIGNIFICANCE STATEMENT: Sulfotransferases (SULTs) are indispensable in the homeostasis of xenobiotics and endobiotics. Knowing SULTs and their regulations are implicated in human diseases, it is hoped that genetic or pharmacological manipulations of the expression and/or activity of SULTs can be used to affect the clinical outcome of diseases.
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Affiliation(s)
- Yang Xie
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, Pittsburgh, Pennsylvania (Y.X., W.X.) and Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania (W.X.)
| | - Wen Xie
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, Pittsburgh, Pennsylvania (Y.X., W.X.) and Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania (W.X.)
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17
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Zhang X, Xu Y, Bai Q, Li X, Han J, Hou Y, Ji Y, Zhang Z. Inhibition of LXR signaling by SULT2B1b promotes liver regeneration after partial hepatectomy in mouse models of nonalcoholic fatty liver disease. Am J Physiol Gastrointest Liver Physiol 2020; 319:G87-G96. [PMID: 32475129 DOI: 10.1152/ajpgi.00380.2019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Hydroxysteroid sulfotransferase 2B1b (SULT2B1b) plays a critical role in hepatic energy homeostasis. Liver X receptors (LXRs) are implicated in multiple physiological functions, including the inhibition of hepatocyte proliferation and regulation of fatty acid and cholesterol metabolism. We have previously reported that SULT2B1b promotes hepatocyte proliferation by inactivating LXR signaling in vivo and in vitro, leading to our hypothesis that SULT2B1b promotes fatty liver regeneration. In the present study, female C57BL/6 and S129 mice were fed a high-fat diet for 8 wk to establish a nonalcoholic fatty liver disease (NAFLD) mouse model. 70% partial hepatectomy (PH) was performed to induce liver regeneration. Our experiments revealed that the SULT2B1b overexpression significantly promotes the regeneration of hepatocytes in NAFLD C57BL/6 mice after PH, increasing liver regrowth by 11% within 1 day, and then by 21%, 33%, and 24% by 2, 3, and 5 days post-PH, respectively. Compared with the wild-type NAFLD S129 mice, SULT2B1 deletion NAFLD S129 mice presented reduced hepatocyte regeneration at postoperative day 2, as verified by decreased liver regrowth (37.4% vs. 46.1%, P < 0.05) and the results of immunohistochemical staining, quantitative real-time polymerase chain reaction, and Western blot analysis. Moreover, LXRα signaling and SULT2B1b expression are highly correlated in the regeneration of NAFLD mouse liver; SULT2B1b overexpression suppresses LXRα signaling, while the LXRα-signaling agonist T0901317 blocks SULT2B1b-induced hepatocyte regeneration in NAFLD mouse liver. Thus, the upregulation of SULT2B1b may promote hepatocyte regeneration via the suppression of LXRα activation in NAFLD mice, providing a potential strategy for improving hepatic-steatosis-related liver regeneration disorders.NEW & NOTEWORTHY This study demonstrates for the first time that hydroxysteroid sulfotransferase 2B1b (SULT2B1b) overexpression promotes the regeneration of fatty liver after partial hepatectomy in mice with nonalcoholic fatty liver disease, while reducing triglyceride accumulation in the regenerative fatty liver. Liver X receptor signaling may be crucial in the SULT2B1b-mediated regeneration of fatty liver. Thus, SULT2B1b may be a potential target for treating hepatic steatosis-related liver regeneration disorders.
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Affiliation(s)
- Xin Zhang
- Department of Pathology, Fudan University Zhongshan Hospital, Shanghai, China
| | - Yuyin Xu
- Department of Pathology, Fudan University Shanghai Cancer Centre, Shanghai, China.,Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Qianming Bai
- Department of Pathology, Fudan University Shanghai Cancer Centre, Shanghai, China
| | - Xiaobo Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Jing Han
- Department of Pathology, Fudan University Zhongshan Hospital, Shanghai, China
| | - Yingyong Hou
- Department of Pathology, Fudan University Zhongshan Hospital, Shanghai, China
| | - Yuan Ji
- Department of Pathology, Fudan University Zhongshan Hospital, Shanghai, China
| | - Zhigang Zhang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
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18
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Bi Y, Wang Y, Xie W. The interplay between hepatocyte nuclear factor 4α (HNF4α) and cholesterol sulfotransferase (SULT2B1b) in hepatic energy homeostasis. LIVER RESEARCH 2019. [DOI: 10.1016/j.livres.2019.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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19
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Prah J, Winters A, Chaudhari K, Hersh J, Liu R, Yang SH. Cholesterol sulfate alters astrocyte metabolism and provides protection against oxidative stress. Brain Res 2019; 1723:146378. [PMID: 31425677 DOI: 10.1016/j.brainres.2019.146378] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 08/05/2019] [Accepted: 08/11/2019] [Indexed: 01/21/2023]
Abstract
Cholesterol sulfate (CS) is one of the most important known sterol sulfates in human plasma and it is present as a normal constituent in a variety of human tissues. In both the brain and periphery, CS serves as a substrate for the synthesis of sulfonated adrenal steroids such as pregnenolone sulfate and dehydroepiandrosterone (DHEA) sulfate and as a constituent of many biological membranes including red blood cells where it functions as a stabilizing agent. It also acts as an endogenous regulator of cholesterol synthesis. However, the role of CS in brain metabolism and neurological disorder is unclear. In the current study we investigated the neuroprotective action of CS as well as its role in brain energy metabolism. The neuroprotective effect of CS and its role on cell metabolism were determined in primary astrocyte prepared from the cortex of postnatal day 0-2 C57BL/6 pups and a hippocampal HT-22 cell line using Calcein AM and MTT cell viability assay, flow cytometry, Seahorse extracellular flux analysis, and metabolism assay kits. We found that CS attenuates glutamate and rotenone induced cell death in HT-22 cells, decrease glutamate induced mitochondria membrane potential collapse, and reactive oxygen species production. Additionally, CS activates the Akt/Bcl2 pathway. We observed that CS impacts astrocyte metabolism by increasing mitochondrial phosphorylation, ATP, and glycogen contents. Our study demonstrated that CS modulates brain energy metabolism and its neuroprotective effects might be due to the activation of Akt signaling or its ability to decrease reactive oxygen species production.
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Affiliation(s)
- Jude Prah
- Department of Pharmacology and Neuroscience, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Ali Winters
- Department of Pharmacology and Neuroscience, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Kiran Chaudhari
- Department of Pharmacology and Neuroscience, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Jessica Hersh
- Department of Pharmacology and Neuroscience, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Ran Liu
- Department of Pharmacology and Neuroscience, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Shao-Hua Yang
- Department of Pharmacology and Neuroscience, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX 76107, USA.
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20
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An Y, Wang P, Xu P, Tung HC, Xie Y, Kirisci L, Xu M, Ren S, Tian X, Ma X, Xie W. An Unexpected Role of Cholesterol Sulfotransferase and its Regulation in Sensitizing Mice to Acetaminophen-Induced Liver Injury. Mol Pharmacol 2019; 95:597-605. [PMID: 30944208 DOI: 10.1124/mol.118.114819] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 03/17/2019] [Indexed: 12/13/2022] Open
Abstract
Overdose of acetaminophen (APAP) is the leading cause of acute liver failure (ALF) in the United States. The sulfotransferase-mediated sulfation of APAP is widely believed to be a protective mechanism to attenuate the hepatotoxicity of APAP. The cholesterol sulfotransferase SULT2B1b is best known for its activity in catalyzing the sulfoconjugation of cholesterol to synthesize cholesterol sulfate. SULT2B1b can be transcriptionally and positively regulated by the hepatic nuclear factor 4α (HNF4α). In this study, we uncovered an unexpected role for SULT2B1b in APAP toxicity. Hepatic overexpression of SULT2B1b sensitized mice to APAP-induced liver injury, whereas ablation of the Sult2B1b gene in mice conferred resistance to the APAP hepatotoxicity. Consistent with the notion that Sult2B1b is a transcriptional target of HNF4α, overexpression of HNF4α sensitized mice or primary hepatocytes to APAP-induced hepatotoxicity in a Sult2B1b-dependent manner. We conclude that the HNF4α-SULT2B1b axis has a unique role in APAP-induced acute liver injury, and SULT2B1b induction might be a risk factor for APAP hepatotoxicity.
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Affiliation(s)
- Yunqi An
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, (Y.A., P.W., P.X., H-C.T., Y.X., L.K., M.X., S.R., X.T., X.M., W.X.) and Department of Pharmacology and Chemical Biology (W.X.), University of Pittsburgh, Pittsburgh, Pennsylvania; and Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (X.T.)
| | - Pengcheng Wang
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, (Y.A., P.W., P.X., H-C.T., Y.X., L.K., M.X., S.R., X.T., X.M., W.X.) and Department of Pharmacology and Chemical Biology (W.X.), University of Pittsburgh, Pittsburgh, Pennsylvania; and Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (X.T.)
| | - Pengfei Xu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, (Y.A., P.W., P.X., H-C.T., Y.X., L.K., M.X., S.R., X.T., X.M., W.X.) and Department of Pharmacology and Chemical Biology (W.X.), University of Pittsburgh, Pittsburgh, Pennsylvania; and Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (X.T.)
| | - Hung-Chun Tung
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, (Y.A., P.W., P.X., H-C.T., Y.X., L.K., M.X., S.R., X.T., X.M., W.X.) and Department of Pharmacology and Chemical Biology (W.X.), University of Pittsburgh, Pittsburgh, Pennsylvania; and Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (X.T.)
| | - Yang Xie
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, (Y.A., P.W., P.X., H-C.T., Y.X., L.K., M.X., S.R., X.T., X.M., W.X.) and Department of Pharmacology and Chemical Biology (W.X.), University of Pittsburgh, Pittsburgh, Pennsylvania; and Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (X.T.)
| | - Levent Kirisci
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, (Y.A., P.W., P.X., H-C.T., Y.X., L.K., M.X., S.R., X.T., X.M., W.X.) and Department of Pharmacology and Chemical Biology (W.X.), University of Pittsburgh, Pittsburgh, Pennsylvania; and Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (X.T.)
| | - Meishu Xu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, (Y.A., P.W., P.X., H-C.T., Y.X., L.K., M.X., S.R., X.T., X.M., W.X.) and Department of Pharmacology and Chemical Biology (W.X.), University of Pittsburgh, Pittsburgh, Pennsylvania; and Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (X.T.)
| | - Songrong Ren
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, (Y.A., P.W., P.X., H-C.T., Y.X., L.K., M.X., S.R., X.T., X.M., W.X.) and Department of Pharmacology and Chemical Biology (W.X.), University of Pittsburgh, Pittsburgh, Pennsylvania; and Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (X.T.)
| | - Xin Tian
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, (Y.A., P.W., P.X., H-C.T., Y.X., L.K., M.X., S.R., X.T., X.M., W.X.) and Department of Pharmacology and Chemical Biology (W.X.), University of Pittsburgh, Pittsburgh, Pennsylvania; and Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (X.T.)
| | - Xiaochao Ma
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, (Y.A., P.W., P.X., H-C.T., Y.X., L.K., M.X., S.R., X.T., X.M., W.X.) and Department of Pharmacology and Chemical Biology (W.X.), University of Pittsburgh, Pittsburgh, Pennsylvania; and Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (X.T.)
| | - Wen Xie
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, (Y.A., P.W., P.X., H-C.T., Y.X., L.K., M.X., S.R., X.T., X.M., W.X.) and Department of Pharmacology and Chemical Biology (W.X.), University of Pittsburgh, Pittsburgh, Pennsylvania; and Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (X.T.)
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21
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Chen K, Zhong J, Hu L, Li R, Du Q, Cai J, Li Y, Gao Y, Cui X, Yang X, Wu X, Yao L, Dai J, Wang Y, Jin H. The Role of Xenobiotic Receptors on Hepatic Glycolipid Metabolism. Curr Drug Metab 2019; 20:29-35. [PMID: 30227815 DOI: 10.2174/1389200219666180918152241] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 03/13/2018] [Accepted: 08/20/2018] [Indexed: 01/14/2023]
Abstract
Background:
PXR (Pregnane X Receptor) and CAR (Constitutive Androstane Receptor) are termed as
xenobiotic receptors, which are known as core factors in regulation of the transcription of metabolic enzymes and
drug transporters. However, accumulating evidence has shown that PXR and CAR exert their effects on energy metabolism
through the regulation of gluconeogenesis, lipogenesis and β-oxidation. Therefore, in this review, we are
trying to summary recent advances to show how xenobiotic receptors regulate energy metabolism.
Methods:
A structured search of databases has been performed by using focused review topics. According to conceptual
framework, the main idea of research literature was summarized and presented.
Results:
For introduction of each receptor, the general introduction and the critical functions in hepatic glucose and
lipid metabolism have been included. Recent important studies have shown that CAR acts as a negative regulator of
lipogenesis, gluconeogenesis and β -oxidation. PXR activation induces lipogenesis, inhibits gluconeogenesis and
inhabits β-oxidation.
Conclusion:
In this review, the importance of xenobiotic receptors in hepatic glucose and lipid metabolism has been
confirmed. Therefore, PXR and CAR may become new therapeutic targets for metabolic syndrome, including obesity
and diabetes. However, further research is required to promote the clinical application of this new energy metabolism
function of xenobiotic receptors.
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Affiliation(s)
- Ke Chen
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jinwei Zhong
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lin Hu
- Pi-wei Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ruliu Li
- Pi-wei Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qun Du
- Pi-wei Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiazhong Cai
- Pi-wei Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yanwu Li
- Pi-wei Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yong Gao
- Pi-wei Institute, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaona Cui
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiaoying Yang
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiaojie Wu
- Department of Immunology, Binzhou Medical University, Yantai, Shangdong, China
| | - Lu Yao
- Jilin Medical University, Jilin, China
| | - Juji Dai
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yan Wang
- Department of Otolaryngology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Haiyong Jin
- Department of Otolaryngology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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22
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Bui LT, Ivers NA, Ragsdale EJ. A sulfotransferase dosage-dependently regulates mouthpart polyphenism in the nematode Pristionchus pacificus. Nat Commun 2018; 9:4119. [PMID: 30297689 PMCID: PMC6175886 DOI: 10.1038/s41467-018-05612-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 07/11/2018] [Indexed: 01/26/2023] Open
Abstract
Polyphenism, the extreme form of developmental plasticity, is the ability of a genotype to produce discrete morphologies matched to alternative environments. Because polyphenism is likely to be under switch-like molecular control, a comparative genetic approach could reveal the molecular targets of plasticity evolution. Here we report that the lineage-specific sulfotransferase SEUD-1, which responds to environmental cues, dosage-dependently regulates polyphenism of mouthparts in the nematode Pristionchus pacificus. SEUD-1 is expressed in cells producing dimorphic morphologies, thereby integrating an intercellular signalling mechanism at its ultimate target. Additionally, multiple alterations of seud-1 support it as a potential target for plasticity evolution. First, a recent duplication of seud-1 in a sister species reveals a direct correlation between genomic dosage and polyphenism threshold. Second, inbreeding to produce divergent polyphenism thresholds resulted in changes in transcriptional dosage of seud-1. Our study thus offers a genetic explanation for how plastic responses evolve.
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Affiliation(s)
- Linh T Bui
- Department of Biology, Indiana University, 915 E. 3rd St., Bloomington, IN, 47405, USA
| | - Nicholas A Ivers
- Department of Biology, Indiana University, 915 E. 3rd St., Bloomington, IN, 47405, USA
| | - Erik J Ragsdale
- Department of Biology, Indiana University, 915 E. 3rd St., Bloomington, IN, 47405, USA.
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23
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Reinehr T, Sánchez-Guijo A, Lass N, Wudy SA. Higher steroid sulfation is linked to successful weight loss in obese children. Endocr Connect 2018; 7:1020-1030. [PMID: 30352391 PMCID: PMC6198195 DOI: 10.1530/ec-18-0233] [Citation(s) in RCA: 2] [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: 08/06/2018] [Accepted: 08/16/2018] [Indexed: 11/08/2022]
Abstract
Objective Little information is available on the steroid sulfates profile in obese children. Therefore, we examined whether sulfated steroids are linked with weight status and associated comorbidities in obese children. Methods We analyzed 66 obese children (mean age 10.5 ± 2.5 years, 57.6% female, 53.9% prepubertal, mean BMI 27.0 ± 4.6 kg/m2, 50% with BMI-SDS reduction >0.5, 50% without BMI-SDS reduction) who participated in an outpatient 1-year intervention program based on exercise, behavior and nutrition therapy. We measured intact sulfated steroids (cholesterol sulfate (CS), pregnenolone sulfate (PregS), 17αOH pregnenolone sulfate (17OH-PregS), 16αOH dehydroepiandrosterone sulfate (16OH-DHEAS), DHEAS, androstenediol-3-sulfate, androsterone sulfate and epiandrosterone sulfate) by LC-MS/MS, and insulin resistance index HOMA, lipids, blood pressure at baseline and 1 year later. Results All sulfated steroids except 17OH-PregS, 16OH-DHEAS, androsterone sulfate and epiandrosterone sulfate were higher in boys compared to girls. Concentrations of CS before intervention were higher in children who lost weight. After 1 year of treatment, both groups showed increased levels of DHEAS, 16OH-DHEAS and androstenediol-3-sulfate, but PregS was only increased in children with weight loss. None of the steroid sulfates was significantly related to cardiovascular risk factors or HOMA except 17OH-PregS, which was associated with systolic blood pressure both in cross-sectional (β-coefficient: 0.09 ± 0.07, P = 0.020) and longitudinal analyses (β-coefficient: 0.06 ± 0.04, P = 0.013) in multiple linear regression analyses. Conclusions Since higher steroid sulfation capacity was associated with successful weight intervention in children disruption of sulfation may be associated with difficulties to lose weight. Future studies are necessary to prove this hypothesis.
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Affiliation(s)
- Thomas Reinehr
- Department of Pediatric EndocrinologyDiabetes and Nutrition Medicine, Vestische Hospital for Children and Adolescents Datteln, University of Witten/Herdecke, Witten, Germany
| | - Alberto Sánchez-Guijo
- Steroid Research & Mass Spectrometry UnitDivision of Pediatric Endocrinology and Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig-University Giessen, Giessen, Germany
| | - Nina Lass
- Department of Pediatric EndocrinologyDiabetes and Nutrition Medicine, Vestische Hospital for Children and Adolescents Datteln, University of Witten/Herdecke, Witten, Germany
| | - Stefan A Wudy
- Steroid Research & Mass Spectrometry UnitDivision of Pediatric Endocrinology and Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig-University Giessen, Giessen, Germany
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24
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Bi Y, Shi X, Zhu J, Guan X, Garbacz WG, Huang Y, Gao L, Yan J, Xu M, Ren S, Ren S, Liu Y, Ma X, Li S, Xie W. Regulation of Cholesterol Sulfotransferase SULT2B1b by Hepatocyte Nuclear Factor 4α Constitutes a Negative Feedback Control of Hepatic Gluconeogenesis. Mol Cell Biol 2018; 38:e00654-17. [PMID: 29378829 PMCID: PMC5854833 DOI: 10.1128/mcb.00654-17] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 01/04/2018] [Accepted: 01/18/2018] [Indexed: 01/10/2023] Open
Abstract
The cholesterol sulfotransferase SULT2B1b converts cholesterol to cholesterol sulfate (CS). We previously reported that SULT2B1b inhibits hepatic gluconeogenesis by antagonizing the gluconeogenic activity of hepatocyte nuclear factor 4α (HNF4α). In this study, we showed that the SULT2B1b gene is a transcriptional target of HNF4α, which led to our hypothesis that the induction of SULT2B1b by HNF4α represents a negative feedback to limit the gluconeogenic activity of HNF4α. Indeed, downregulation of Sult2B1b enhanced the gluconeogenic activity of HNF4α, which may have been accounted for by the increased acetylation of HNF4α as a result of decreased expression of the HNF4α deacetylase sirtuin 1 (Sirt1). The expression of Sult2B1b was also induced by HNF4α upon fasting, and the Sult2B1b null (Sult2B1b-/-) mice showed increased gluconeogenic gene expression and an elevated fasting glucose level, suggesting that SULT2B1b also plays a restrictive role in HNF4α-mediated fasting-responsive gluconeogenesis. We also developed thiocholesterol, a hydrolysis-resistant derivative of CS, which showed superior activity to that of the native CS in inhibiting gluconeogenesis and improving insulin sensitivity in high-fat-diet-induced diabetic mice. We conclude that the HNF4α-SULT2B1b-CS axis represents a key endogenous mechanism to prevent uncontrolled gluconeogenesis. Thiocholesterol may be used as a therapeutic agent to manage hyperglycemia.
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Affiliation(s)
- Yuhan Bi
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Xiongjie Shi
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Junjie Zhu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Xiudong Guan
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Wojciech G Garbacz
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yixian Huang
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Li Gao
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Gastroenterology, Peking University People's Hospital, Beijing, China
| | - Jiong Yan
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Meishu Xu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Songrong Ren
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Shunlin Ren
- Department of Medicine, Virginia Commonwealth University, Veterans Affairs McGuire Medical Center, Richmond, Virginia, USA
| | - Yulan Liu
- Department of Gastroenterology, Peking University People's Hospital, Beijing, China
| | - Xiaochao Ma
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Song Li
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Wen Xie
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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25
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Han YH, Kim HJ, Na H, Nam MW, Kim JY, Kim JS, Koo SH, Lee MO. RORα Induces KLF4-Mediated M2 Polarization in the Liver Macrophages that Protect against Nonalcoholic Steatohepatitis. Cell Rep 2018; 20:124-135. [PMID: 28683306 DOI: 10.1016/j.celrep.2017.06.017] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 05/04/2017] [Accepted: 06/02/2017] [Indexed: 12/20/2022] Open
Abstract
The regulation of M1/M2 polarization in liver macrophages is closely associated with the progression of nonalcoholic steatohepatitis (NASH); however, the mechanism involved in this process remains unclear. Here, we describe the orphan nuclear receptor retinoic-acid-related orphan receptor α (RORα) as a key regulator of M1/M2 polarization in hepatic residential Kupffer cells (KCs) and infiltrated monocyte-derived macrophages. RORα enhanced M2 polarization in KCs by inducing the kruppel-like factor 4. M2 polarization was defective in KCs and bone-marrow-derived macrophages of the myeloid-specific RORα null mice, and these mice were susceptible to HFD-induced NASH. We found that IL-10 played an important role in connecting the function of M2 KCs to lipid accumulation and apoptosis in hepatocytes. Importantly, M2 polarization was controlled by a RORα activator, JC1-40, which improved symptoms of NASH. Our results suggest that the M2-promoting effects of RORα in liver macrophages may provide better therapeutic strategies against NASH.
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Affiliation(s)
- Yong-Hyun Han
- College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyeon-Ji Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyelin Na
- College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Min-Woo Nam
- College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Ju-Yeon Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Jun-Seok Kim
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Seung-Hoi Koo
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Mi-Ock Lee
- College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea; Bio-MAX Institute, Seoul National University, Seoul 08826, Republic of Korea; Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea.
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26
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Ning Y, Kim JK, Min HK, Ren S. Cholesterol metabolites alleviate injured liver function and decrease mortality in an LPS-induced mouse model. Metabolism 2017; 71:83-93. [PMID: 28521882 DOI: 10.1016/j.metabol.2016.12.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 12/01/2016] [Accepted: 12/07/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND Oxysterol sulfation plays a fundamental role in the regulation of many biological events. Its products, 25-hydroxycholesterol 3-sulfate (25HC3S) and 25-hydroxycholesterol 3, 25-disulfate (25HCDS), have been demonstrated to be potent regulators of lipid metabolism, inflammatory response, cell apoptosis, and cell survival. In the present study, we tested these products' potential to treat LPS-induced acute liver failure in a mouse model. METHODS Acute liver failure mouse model was established by intravenous injection with LPS. The injured liver function was treated with intraperitoneal administration of 25HC, 25HC3S or 25HCDS. Serum enzymatic activities were determined in our clinic laboratory. ELISA assays were used to detect pro-inflammatory factor levels in sera. Western blot, Real-time Quantitative PCR and RT2 Profiler PCR Array analysis were used to determine levels of gene expression. RESULTS Administration of 25HC3S/25HCDS decreased serum liver-impaired markers; suppressed secretion of pro-inflammatory factors; alleviated liver, lung, and kidney injury; and subsequently increased the survival rate in the LPS-induced mouse model. These effects resulted from the inhibition of the expression of genes involved in the pro-inflammatory response and apoptosis and the simultaneous induction of the expression of genes involved in cell survival. Compared to 25HC, 25HC3S and 25HCDS exhibited significantly stronger effects in these activities, indicating that the cholesterol metabolites play an important role in the inflammatory response, cell apoptosis, and cell survival in vivo. CONCLUSIONS 25HC3S/25HCDS has potential to serve as novel biomedicines in the therapy of acute liver failure and acute multiple organ failure.
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Affiliation(s)
- Yanxia Ning
- Department of Internal Medicine, Virginia Commonwealth University/McGuire Veterans Affairs Medical Center, Richmond, VA 23249, United States
| | - Jin Kyung Kim
- Department of Internal Medicine, Virginia Commonwealth University/McGuire Veterans Affairs Medical Center, Richmond, VA 23249, United States
| | - Hae-Ki Min
- Department of Internal Medicine, Virginia Commonwealth University/McGuire Veterans Affairs Medical Center, Richmond, VA 23249, United States
| | - Shunlin Ren
- Department of Internal Medicine, Virginia Commonwealth University/McGuire Veterans Affairs Medical Center, Richmond, VA 23249, United States.
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27
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Becnel LB, Ochsner SA, Darlington YF, McOwiti A, Kankanamge WH, Dehart M, Naumov A, McKenna NJ. Discovering relationships between nuclear receptor signaling pathways, genes, and tissues in Transcriptomine. Sci Signal 2017; 10:10/476/eaah6275. [DOI: 10.1126/scisignal.aah6275] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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28
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Kim SH, Lee SH, Lee WY, Lee J, Chung BC, Park MJ, Choi MH. Serum levels of cholesterol, pregnenolone, DHEA, and their sulfate conjugates based on sex and pubertal stage in adolescents. Clin Chim Acta 2016; 461:47-52. [DOI: 10.1016/j.cca.2016.07.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 07/25/2016] [Accepted: 07/26/2016] [Indexed: 10/21/2022]
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29
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Ren Q, Xiao D, Han X, Edwards SL, Wang H, Tang Y, Zhang S, Li X, Zhang X, Cai X, Liu Z, Paul SK, Ji L. Genetic and Clinical Predictive Factors of Sulfonylurea Failure in Patients with Type 2 Diabetes. Diabetes Technol Ther 2016; 18:586-93. [PMID: 27403931 DOI: 10.1089/dia.2015.0427] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Sulfonylureas are widely used to treat type 2 diabetes (T2DM). Although genetic variations are associated with sulfonylurea treatment responses in T2DM patients, whether these variations can be used to predict heterogeneous treatment responses is unclear. In this study, we assessed the potential utility of combining information from multiple variants and phenotypes to predict sulfonylurea response. METHODS Using data from the "Glibenclamide" arm (365 patients) of the Xiaoke Pill Trial that evaluated the safety and efficacy of sulfonylurea, we identified genetic variants associated with sulfonylurea treatment response, and we explored their ability to predict drug response when combined with phenotype information. RESULTS The association of 780 single-nucleotide polymorphisms (using Infinium HD iSelect chip) with drug efficacy was evaluated, and four genes identified with drug metabolism (FMO2, FMO3, UGT2B15, and CYP51A1, P < 0.05) were found to be associated with changes in HbA1c. In a clinical model, the baseline values of HbA1c and disposition index (DI) were significantly associated with HbA1c and fasting plasma glucose (FPG) target achievements. Compared with clinical models, the inclusion of genetic markers significantly increased the predictive ability for both HbA1c- and FPG-based outcomes. CONCLUSIONS Our findings suggest that altered protein function in multiple pathways may cooperatively contribute to the increased discrimination by area under receiver operating curve for T2DM patients, and it may explain, in part, the relationship between inter-individual variability and the sulfonylurea response.
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Affiliation(s)
- Qian Ren
- 1 Department of Endocrinology and Metabolism, Peking University People's Hospital , Beijing, P.R. China
| | - Di Xiao
- 2 Department of Clinical Pharmacology, Xiangya Hospital, Central South University , Changsha, P.R. China
- 3 Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University , Changsha, P.R. China
| | - Xueyao Han
- 1 Department of Endocrinology and Metabolism, Peking University People's Hospital , Beijing, P.R. China
| | - Stacey L Edwards
- 4 Genetics and Computational Biology Department, QIMR Berghofer Medical Research Institute , Brisbane, Australia
| | - Huaiqing Wang
- 1 Department of Endocrinology and Metabolism, Peking University People's Hospital , Beijing, P.R. China
| | - Yong Tang
- 1 Department of Endocrinology and Metabolism, Peking University People's Hospital , Beijing, P.R. China
| | - Simin Zhang
- 1 Department of Endocrinology and Metabolism, Peking University People's Hospital , Beijing, P.R. China
| | - Xi Li
- 2 Department of Clinical Pharmacology, Xiangya Hospital, Central South University , Changsha, P.R. China
- 3 Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University , Changsha, P.R. China
| | - Xiuying Zhang
- 1 Department of Endocrinology and Metabolism, Peking University People's Hospital , Beijing, P.R. China
| | - Xiaoling Cai
- 1 Department of Endocrinology and Metabolism, Peking University People's Hospital , Beijing, P.R. China
| | - Zhaoqian Liu
- 2 Department of Clinical Pharmacology, Xiangya Hospital, Central South University , Changsha, P.R. China
- 3 Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University , Changsha, P.R. China
| | - Sanjoy K Paul
- 5 Clinical Trials and Biostatistics Unit, QIMR Berghofer Medical Research Institute , Brisbane, Australia
| | - Linong Ji
- 1 Department of Endocrinology and Metabolism, Peking University People's Hospital , Beijing, P.R. China
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30
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The Nuclear Hormone Receptor NHR-40 Acts Downstream of the Sulfatase EUD-1 as Part of a Developmental Plasticity Switch in Pristionchus. Curr Biol 2016; 26:2174-9. [PMID: 27451902 DOI: 10.1016/j.cub.2016.06.018] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 05/19/2016] [Accepted: 06/14/2016] [Indexed: 11/21/2022]
Abstract
Developmental plasticity, the ability of one genotype to produce distinct phenotypes in different environments, has been suggested to facilitate phenotypic diversification, and several examples in plants and animals support its macroevolutionary potential [1-8]. However, little is known about associated molecular mechanisms, because environmental effects on development are difficult to study by laboratory approaches. One promising system is the mouth dimorphism of the nematode Pristionchus pacificus [9-12]. Following an irreversible decision in larval development, these nematodes form moveable teeth that occur in either of two discrete morphs. The "eurystomatous" (Eu) form has a wide mouth and two teeth, allowing predatory feeding on other nematodes. In contrast, the alternative ("stenostomatous"; St) form has diminutive mouthparts that largely constrain its diet to microbes. The sulfatase EUD-1 was previously discovered to execute a polyphenism switch based on dosage of functional alleles [13] and confirmed a prediction of evolutionary theory about how developmental switches control plasticity [1, 3]. However, the genetic context of this single gene, and hence the molecular complexity of switch mechanisms, was previously unknown. Here we use a suppressor screen to identify factors downstream of eud-1 in mouth-form regulation. We isolated three dominant, X-linked mutants in the nuclear hormone receptor gene nhr-40 that are haploinsufficient. Both eud-1 nhr-40 double and nhr-40 single mutants are all Eu, whereas transgenic overexpression of nhr-40 does not restore the wild-type phenotype but instead results in nearly all-St lines. Thus, NHR-40 is part of a developmental switch, suggesting that switch mechanisms controlling plasticity consist of multi-component hormonal signaling systems.
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Carter CL, Jones JW, Barrow K, Kieta K, Taylor-Howell C, Kearney S, Smith CP, Gibbs A, Farese AM, MacVittie TJ, Kane MA. A MALDI-MSI Approach to the Characterization of Radiation-Induced Lung Injury and Medical Countermeasure Development. HEALTH PHYSICS 2015; 109:466-78. [PMID: 26425906 PMCID: PMC4745118 DOI: 10.1097/hp.0000000000000353] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Radiation-induced lung injury is highly complex and characterized by multiple pathologies, which occur over time and sporadically throughout the lung. This complexity makes biomarker investigations and medical countermeasure screenings challenging. Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) has the ability to resolve differences spatially in molecular profiles within the lung following radiation exposure and can aid in biomarker identification and pharmaceutical efficacy investigations. MALDI-MSI was applied to the investigation of a whole-thorax lung irradiation model in non-human primates (NHP) for lipidomic analysis and medical countermeasure distribution.
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Affiliation(s)
- Claire L. Carter
- University of Maryland, School of Pharmacy, Department of Pharmaceutical Sciences
| | - Jace W. Jones
- University of Maryland, School of Pharmacy, Department of Pharmaceutical Sciences
| | - Kory Barrow
- University of Maryland, School of Medicine, Department of Radiation Oncology, Baltimore, MD 21201
| | - Kaitlyn Kieta
- University of Maryland, School of Medicine, Department of Radiation Oncology, Baltimore, MD 21201
| | - Cheryl Taylor-Howell
- University of Maryland, School of Medicine, Department of Radiation Oncology, Baltimore, MD 21201
| | - Sean Kearney
- University of Maryland, School of Medicine, Department of Radiation Oncology, Baltimore, MD 21201
| | - Cassandra P. Smith
- University of Maryland, School of Medicine, Department of Radiation Oncology, Baltimore, MD 21201
| | - Allison Gibbs
- University of Maryland, School of Medicine, Department of Radiation Oncology, Baltimore, MD 21201
| | - Ann M. Farese
- University of Maryland, School of Medicine, Department of Radiation Oncology, Baltimore, MD 21201
| | - Thomas J. MacVittie
- University of Maryland, School of Medicine, Department of Radiation Oncology, Baltimore, MD 21201
| | - Maureen A. Kane
- University of Maryland, School of Pharmacy, Department of Pharmaceutical Sciences
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Deciphering the roles of the constitutive androstane receptor in energy metabolism. Acta Pharmacol Sin 2015; 36:62-70. [PMID: 25500869 DOI: 10.1038/aps.2014.102] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 08/20/2014] [Indexed: 12/21/2022] Open
Abstract
The constitutive androstane receptor (CAR) is initially defined as a xenobiotic nuclear receptor that protects the liver from injury. Detoxification of damaging chemicals is achieved by CAR-mediated induction of drug-metabolizing enzymes and transporters. More recent research has implicated CAR in energy metabolism, suggesting a therapeutic potential for CAR in metabolic diseases, such as type 2 diabetes and obesity. A better understanding of the mechanisms by which CAR regulates energy metabolism will allow us to take advantage of its effectiveness while avoiding its side effects. This review summarizes the current progress on the regulation of CAR nuclear translocation, upstream modulators of CAR activity, and the crosstalk between CAR and other transcriptional factors, with the aim of elucidating how CAR regulates glucose and lipid metabolism.
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Bhattacharyya S, Feferman L, Unterman T, Tobacman JK. Exposure to common food additive carrageenan alone leads to fasting hyperglycemia and in combination with high fat diet exacerbates glucose intolerance and hyperlipidemia without effect on weight. J Diabetes Res 2015; 2015:513429. [PMID: 25883986 PMCID: PMC4390184 DOI: 10.1155/2015/513429] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 03/03/2015] [Indexed: 01/01/2023] Open
Abstract
AIMS Major aims were to determine whether exposure to the commonly used food additive carrageenan could induce fasting hyperglycemia and could increase the effects of a high fat diet on glucose intolerance and dyslipidemia. METHODS C57BL/6J mice were exposed to either carrageenan, high fat diet, or the combination of high fat diet and carrageenan, or untreated, for one year. Effects on fasting blood glucose, glucose tolerance, lipid parameters, weight, glycogen stores, and inflammation were compared. RESULTS Exposure to carrageenan led to glucose intolerance by six days and produced elevated fasting blood glucose by 23 weeks. Effects of carrageenan on glucose tolerance were more severe than from high fat alone. Carrageenan in combination with high fat produced earlier onset of fasting hyperglycemia and higher glucose levels in glucose tolerance tests and exacerbated dyslipidemia. In contrast to high fat, carrageenan did not lead to weight gain. In hyperinsulinemic, euglycemic clamp studies, the carrageenan-exposed mice had higher early glucose levels and lower glucose infusion rate and longer interval to achieve the steady-state. CONCLUSIONS Carrageenan in the Western diet may contribute to the development of diabetes and the effects of high fat consumption. Carrageenan may be useful as a nonobese model of diabetes in the mouse.
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Affiliation(s)
- Sumit Bhattacharyya
- Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612-4325, USA
- Jesse Brown VA Medical Center, Chicago, IL 60612-3728, USA
| | - Leo Feferman
- Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612-4325, USA
- Jesse Brown VA Medical Center, Chicago, IL 60612-3728, USA
| | - Terry Unterman
- Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612-4325, USA
- Jesse Brown VA Medical Center, Chicago, IL 60612-3728, USA
| | - Joanne K. Tobacman
- Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612-4325, USA
- Jesse Brown VA Medical Center, Chicago, IL 60612-3728, USA
- *Joanne K. Tobacman:
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Ren S, Kim JK, Kakiyama G, Rodriguez-Agudo D, Pandak WM, Min HK, Ning Y. Identification of novel regulatory cholesterol metabolite, 5-cholesten, 3β,25-diol, disulfate. PLoS One 2014; 9:e103621. [PMID: 25072708 PMCID: PMC4114806 DOI: 10.1371/journal.pone.0103621] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 06/04/2014] [Indexed: 01/12/2023] Open
Abstract
Oxysterol sulfation plays an important role in regulation of lipid metabolism and inflammatory responses. In the present study, we report the discovery of a novel regulatory sulfated oxysterol in nuclei of primary rat hepatocytes after overexpression of the gene encoding mitochondrial cholesterol delivery protein (StarD1). Forty-eight hours after infection of the hepatocytes with recombinant StarD1 adenovirus, a water-soluble oxysterol product was isolated and purified by chemical extraction and reverse-phase HPLC. Tandem mass spectrometry analysis identified the oxysterol as 5-cholesten-3β, 25-diol, disulfate (25HCDS), and confirmed the structure by comparing with a chemically synthesized compound. Administration of 25HCDS to human THP-1-derived macrophages or HepG2 cells significantly inhibited cholesterol synthesis and markedly decreased lipid levels in vivo in NAFLD mouse models. RT-PCR showed that 25HCDS significantly decreased SREBP-1/2 activities by suppressing expression of their responding genes, including ACC, FAS, and HMG-CoA reductase. Analysis of lipid profiles in the liver tissues showed that administration of 25HCDS significantly decreased cholesterol, free fatty acids, and triglycerides by 30, 25, and 20%, respectively. The results suggest that 25HCDS inhibits lipid biosynthesis via blocking SREBP signaling. We conclude that 25HCDS is a potent regulator of lipid metabolism and propose its biosynthetic pathway.
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Affiliation(s)
- Shunlin Ren
- Department of Medicine, Veterans Affairs McGuire Medical Center/Department of Medicine, Virginia Commonwealth University, Richmond, Virginia, United States of America
- * E-mail:
| | - Jin Koung Kim
- Department of Medicine, Veterans Affairs McGuire Medical Center/Department of Medicine, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Genta Kakiyama
- Department of Medicine, Veterans Affairs McGuire Medical Center/Department of Medicine, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Daniel Rodriguez-Agudo
- Department of Medicine, Veterans Affairs McGuire Medical Center/Department of Medicine, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - William M. Pandak
- Department of Medicine, Veterans Affairs McGuire Medical Center/Department of Medicine, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Hae-Ki Min
- Department of Medicine, Veterans Affairs McGuire Medical Center/Department of Medicine, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Yanxia Ning
- Department of Medicine, Veterans Affairs McGuire Medical Center/Department of Medicine, Virginia Commonwealth University, Richmond, Virginia, United States of America
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