201
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Aggrey SE, González-Cerón F, Rekaya R, Mercier Y. Gene expression differences in the methionine remethylation and transsulphuration pathways under methionine restriction and recovery with D,L-methionine or D,L-HMTBA in meat-type chickens. J Anim Physiol Anim Nutr (Berl) 2017; 102:e468-e475. [DOI: 10.1111/jpn.12779] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 06/07/2017] [Indexed: 12/16/2022]
Affiliation(s)
- S. E. Aggrey
- Poultry Science Department; NutriGenomics Laboratory; University of Georgia; Athens GA USA
- Institute of Bioinformatics; University of Georgia; Athens GA USA
| | - F. González-Cerón
- Poultry Science Department; NutriGenomics Laboratory; University of Georgia; Athens GA USA
| | - R. Rekaya
- Institute of Bioinformatics; University of Georgia; Athens GA USA
- Department of Animal and Dairy Science; University of Georgia; Athens GA USA
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202
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Ingenbleek Y. Lean Body Mass Harbors Sensing Mechanisms that Allow Safeguarding of Methionine Homeostasis. Nutrients 2017; 9:nu9091035. [PMID: 28930162 PMCID: PMC5622795 DOI: 10.3390/nu9091035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 09/14/2017] [Accepted: 09/16/2017] [Indexed: 01/16/2023] Open
Abstract
Protein-depleted states generate allosteric inhibition of liver cystathionine β-synthase (CBS), which governs the first enzymatic step of the transsulfuration cascade, resulting in upstream accretion of homocysteine (Hcy) in body fluids. A similar Hcy increase may arise from normal hepatocytes undergoing experimentally-induced impairment of betaine-homocysteine methyltransferase (BHTM) activity or from components of lean body mass (LBM) submitted to any inflammatory disorder. LBM comprises a composite agglomeration of extrarenal tissues characterized by naturally occurring BHTM inactivity. As a result of cellular injury, LBM releases high concentrations of Hcy into the extracellular space, contrasting with the disruption of normal remethylation pathways. Hyperhomocysteinemia acts as a biomarker, reflecting the severity of insult and operating as an alarm signal. Elevated Hcy levels constitute a precursor pool recognized by a CBS coding region that reacts to meet increased methionine requirements in LBM tissues, using its enhanced production in hepatocytes. Preservation of methionine homeostasis benefits from its high metabolic priority and survival value.
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Affiliation(s)
- Yves Ingenbleek
- Laboratory of Nutrition, Faculty of Pharmacy, University Louis Pasteur, F-67401 Strasbourg, France.
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203
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Wang J, Hang Y, Tan H, Jiang T, Qu X, Hua J. Two new colorimetric and ratiometric fluorescent probes based on diketopyrrolopyrrole (DPP) for detecting and imaging of mitochondrial SO 2 derivatives in cancer cells. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.06.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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204
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Sun Y, Chen Z, Chen F, Liu H, He H, Zhang X, Wang S. An HBT-Based Near-Infrared Fluorescent Probe for Colorimetric and Ratiometric Detection of Bisulfite and its Application in Living Cells. J Fluoresc 2017; 27:1405-1411. [DOI: 10.1007/s10895-017-2077-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 04/04/2017] [Indexed: 12/11/2022]
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205
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Barroso M, Handy DE, Castro R. The Link Between Hyperhomocysteinemia and Hypomethylation. JOURNAL OF INBORN ERRORS OF METABOLISM AND SCREENING 2017. [DOI: 10.1177/2326409817698994] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Madalena Barroso
- Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Diane E. Handy
- Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Rita Castro
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
- Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
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206
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Kumaresan V, Nizam F, Ravichandran G, Viswanathan K, Palanisamy R, Bhatt P, Arasu MV, Al-Dhabi NA, Mala K, Arockiaraj J. Transcriptome changes of blue-green algae, Arthrospira sp. in response to sulfate stress. ALGAL RES 2017. [DOI: 10.1016/j.algal.2017.01.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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207
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Jacometo C, Zhou Z, Luchini D, Corrêa M, Loor J. Maternal supplementation with rumen-protected methionine increases prepartal plasma methionine concentration and alters hepatic mRNA abundance of 1-carbon, methionine, and transsulfuration pathways in neonatal Holstein calves. J Dairy Sci 2017; 100:3209-3219. [DOI: 10.3168/jds.2016-11656] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 12/08/2016] [Indexed: 01/06/2023]
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208
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de las Heras J, Aldámiz-Echevarría L, Martínez-Chantar ML, Delgado TC. An update on the use of benzoate, phenylacetate and phenylbutyrate ammonia scavengers for interrogating and modifying liver nitrogen metabolism and its implications in urea cycle disorders and liver disease. Expert Opin Drug Metab Toxicol 2017; 13:439-448. [PMID: 27860485 PMCID: PMC5568887 DOI: 10.1080/17425255.2017.1262843] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Ammonia-scavenging drugs, benzoate and phenylacetate (PA)/phenylbutyrate (PB), modulate hepatic nitrogen metabolism mainly by providing alternative pathways for nitrogen disposal. Areas covered: We review the major findings and potential novel applications of ammonia-scavenging drugs, focusing on urea cycle disorders and liver disease. Expert opinion: For over 40 years, ammonia-scavenging drugs have been used in the treatment of urea cycle disorders. Recently, the use of these compounds has been advocated in acute liver failure and cirrhosis for reducing hyperammonemic-induced hepatic encephalopathy. The efficacy and mechanisms underlying the antitumor effects of these ammonia-scavenging drugs in liver cancer are more controversial and are discussed in the review. Overall, as ammonia-scavenging drugs are usually safe and well tolerated among cancer patients, further studies should be instigated to explore the role of these drugs in liver cancer. Considering the relevance of glutamine metabolism to the progression and resolution of liver disease, we propose that ammonia-scavenging drugs might also be used to non-invasively probe liver glutamine metabolism in vivo. Finally, novel derivatives of classical ammonia-scavenging drugs with fewer and less severe adverse effects are currently being developed and used in clinical trials for the treatment of acute liver failure and cirrhosis.
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Affiliation(s)
- Javier de las Heras
- Division of Pediatric Metabolism, University Hospital of Cruces, Barakaldo, Bizkaia, Spain
- BioCruces Health Research Institute, Barakaldo, Bizkaia, Spain
- University of the Basque Country, Leioa, Bizkaia, Spain
| | - Luis Aldámiz-Echevarría
- Division of Pediatric Metabolism, University Hospital of Cruces, Barakaldo, Bizkaia, Spain
- BioCruces Health Research Institute, Barakaldo, Bizkaia, Spain
- University of the Basque Country, Leioa, Bizkaia, Spain
| | - María-Luz Martínez-Chantar
- University of the Basque Country, Leioa, Bizkaia, Spain
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Derio, Bizkaia, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Derio, Bizkaia, Spain
| | - Teresa C. Delgado
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Derio, Bizkaia, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Derio, Bizkaia, Spain
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209
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Jacobs RL, Jiang H, Kennelly JP, Orlicky DJ, Allen RH, Stabler SP, Maclean KN. Cystathionine beta-synthase deficiency alters hepatic phospholipid and choline metabolism: Post-translational repression of phosphatidylethanolamine N-methyltransferase is a consequence rather than a cause of liver injury in homocystinuria. Mol Genet Metab 2017; 120:325-336. [PMID: 28291718 DOI: 10.1016/j.ymgme.2017.02.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 02/28/2017] [Indexed: 12/27/2022]
Abstract
Classical homocystinuria (HCU) due to inactivating mutation of cystathionine β-synthase (CBS) is a poorly understood life-threatening inborn error of sulfur metabolism. A previously described cbs-/- mouse model exhibits a semi-lethal phenotype due to neonatal liver failure. The transgenic HO mouse model of HCU exhibits only mild liver injury and recapitulates multiple aspects of the disease as it occurs in humans. Disruption of the methionine cycle in HCU has the potential to impact multiple aspect of phospholipid (PL) metabolism by disruption of both the Kennedy pathway and phosphatidylethanolamine N-methyltransferase (PEMT) mediated synthesis of phosphatidylcholine (PC). Comparative metabolomic analysis of HO mouse liver revealed decreased levels of choline, and choline phosphate indicating disruption of the Kennedy pathway. Alterations in the relative levels of multiple species of PL included significant increases in PL degradation products consistent with enhanced membrane PL turnover. A significant decrease in PC containing 20:4n6 which primarily formed by the methylation of phosphatidylethanolamine to PC was consistent with decreased flux through PEMT. Hepatic expression of PEMT in both the cbs-/- and HO models is post-translationally repressed with decreased levels of PEMT protein and activity that inversely-correlates with the scale of liver injury. Failure to induce further repression of PEMT in HO mice by increased homocysteine, methionine and S-adenosylhomocysteine or depletion of glutathione combined with examination of multiple homocysteine-independent models of liver injury indicated that repression of PEMT in HCU is a consequence rather than a cause of liver injury. Collectively, our data show significant alteration of a broad range of hepatic PL and choline metabolism in HCU with the potential to contribute to multiple aspects of pathogenesis in this disease.
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Affiliation(s)
- René L Jacobs
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G2E1, Canada; Department of Biochemistry, University of Alberta, Edmonton, Alberta T6G2E1, Canada
| | - Hua Jiang
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - John P Kennelly
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G2E1, Canada; Department of Biochemistry, University of Alberta, Edmonton, Alberta T6G2E1, Canada
| | - David J Orlicky
- Department of Pathology, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Robert H Allen
- Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Sally P Stabler
- Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Kenneth N Maclean
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO 80045, USA.
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210
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Bronowicka-Adamska P, Wróbel M, Magierowski M, Magierowska K, Kwiecień S, Brzozowski T. Hydrogen Sulphide Production in Healthy and Ulcerated Gastric Mucosa of Rats. Molecules 2017; 22:molecules22040530. [PMID: 28346391 PMCID: PMC6154691 DOI: 10.3390/molecules22040530] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 03/13/2017] [Accepted: 03/22/2017] [Indexed: 11/17/2022] Open
Abstract
Hydrogen sulphide (H2S) is produced endogenously via two enzymes dependent on pyridoxal phosphate (PLP): cystathionine beta-synthase (CBS, EC 4.2.1.22), cystathionase γ-liase (CTH, EC 4.4.1.1), and a third, 3-mercaptopyruvate sulfurtransferase (MPST, EC 2.8.1.2). H2S strengthens the defence mechanisms of the gastric mucosal barrier, and plays an important role in gastroprotection, including the increased resistance to damage caused by various irritants and non-steroidal anti-inflammatory drugs. The study was conducted to determine the role of H2S in ulcerated gastric mucosa of rats caused by immobilization in cold water (WRS). The activity and expression of γ-cystathionase, cystathionine β-synthase, 3-mercaptopyruvate sulfurtransferase, and rhodanese was compared with healthy mucosa, together with H2S generation, and cysteine, glutathione, and cystathionine levels. The results showed that the defence mechanism against stress is associated with stimulation of the production of H2S in the tissue and confirmed the observed advantageous effect of H2S on healing of gastric ulcers. In case of animals pretreated with exogenous sources of H2S and NaHS, and some changes observed in the ulcerated gastric mucosa tend to return to values found in the healthy tissue, a finding that is in accordance with the previously determined gastroprotective properties of H2S. The results presented in this paper point to the possible role of rhodanese in H2S production in the gastric mucosa of rats, together with the earlier mentioned three enzymes, which are all active in this tissue.
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Affiliation(s)
- Patrycja Bronowicka-Adamska
- Chair of Medical Biochemistry, Jagiellonian University Medical College, Krakow, 7 Kopernika St., 31-034 Cracow, Poland.
| | - Maria Wróbel
- Chair of Medical Biochemistry, Jagiellonian University Medical College, Krakow, 7 Kopernika St., 31-034 Cracow, Poland.
| | - Marcin Magierowski
- Department of Physiology, Jagiellonian University Medical College, 31-530 Krakow, Poland.
| | - Katarzyna Magierowska
- Department of Physiology, Jagiellonian University Medical College, 31-530 Krakow, Poland.
| | - Sławomir Kwiecień
- Department of Physiology, Jagiellonian University Medical College, 31-530 Krakow, Poland.
| | - Tomasz Brzozowski
- Department of Physiology, Jagiellonian University Medical College, 31-530 Krakow, Poland.
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211
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A novel mitochondria-targeted near-infrared fluorescence probe for ultrafast and ratiometric detection of SO 2 derivatives in live cells. Talanta 2017; 168:203-209. [PMID: 28391843 DOI: 10.1016/j.talanta.2017.03.043] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 03/08/2017] [Accepted: 03/16/2017] [Indexed: 02/06/2023]
Abstract
A novel mitochondria-targeted ratiometric near-infrared fluorescence probe NDMBT for Sulfur dioxide (SO2) derivatives was constructed based on the SO2 derivatives-triggered Michael addition reaction. It displayed ultrafast response time (within 10s), large hypsochromic shift (260nm), high photostability, excellent selectivity and high sensitivity in aqueous media with a detection limit of 43nM. More importantly, it was successfully applied to imaging of the enzymatically generated SO2 derivatives in mitochondria of live cells.
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212
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Don D, Velmurugan K, Prabhu J, Bhuvanesh N, Thamilselvan A, Nandhakumar R. A dual analyte fluorescent chemosensor based on a furan-pyrene conjugate for Al 3+ & HSO 3. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 174:62-69. [PMID: 27888783 DOI: 10.1016/j.saa.2016.11.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 11/10/2016] [Accepted: 11/14/2016] [Indexed: 05/06/2023]
Abstract
A simple chalcone based dual analyte fluorescent probe FPC for Al3+ and HSO3- ions was developed. FPC detects both the analytes through a "turn off-on" approach and by the PET and ICT mechanism. FPC showed high selectivity and sensitivity for Al3+ and HSO3- ions detection over other interfering and competing metal ions. In addition, the LOD of FPC for sensing Al3+ and HSO3- ions was found to be 1.60×10-7M and 0.17×10-6M respectively. An electrochemical desalination technique was employed for the complete removal of Al3+ ions from the environmental water samples by using the probe FPC.
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Affiliation(s)
- Derin Don
- Department of Chemistry, Karunya University, Karunya Nagar, Coimbatore 641 114, India
| | - K Velmurugan
- Department of Chemistry, Karunya University, Karunya Nagar, Coimbatore 641 114, India
| | - J Prabhu
- Department of Chemistry, Karunya University, Karunya Nagar, Coimbatore 641 114, India
| | - N Bhuvanesh
- Department of Chemistry, Karunya University, Karunya Nagar, Coimbatore 641 114, India
| | - A Thamilselvan
- Water Institute, Karunya University, Karunya Nagar, Coimbatore 641 114, India
| | - R Nandhakumar
- Department of Chemistry, Karunya University, Karunya Nagar, Coimbatore 641 114, India.
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213
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Yue Y, Huo F, Ning P, Zhang Y, Chao J, Meng X, Yin C. Dual-Site Fluorescent Probe for Visualizing the Metabolism of Cys in Living Cells. J Am Chem Soc 2017; 139:3181-3185. [DOI: 10.1021/jacs.6b12845] [Citation(s) in RCA: 353] [Impact Index Per Article: 50.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yongkang Yue
- Key
Laboratory of Chemical Biology and Molecular Engineering of Ministry
of Education, Key Laboratory of Materials for Energy Conversion and
Storage of Shanxi Province, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Fangjun Huo
- Research
Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, China
| | - Peng Ning
- Department
of Chemistry, Anhui University, Hefei 230601, China
| | - Yongbin Zhang
- Research
Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, China
| | - Jianbin Chao
- Research
Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, China
| | - Xiangming Meng
- Department
of Chemistry, Anhui University, Hefei 230601, China
| | - Caixia Yin
- Key
Laboratory of Chemical Biology and Molecular Engineering of Ministry
of Education, Key Laboratory of Materials for Energy Conversion and
Storage of Shanxi Province, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
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214
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Nandi AA, Wadhwani NS, Joshi SR. Altered metabolic homeostasis between vitamin D and long chain polyunsaturated fatty acids in preeclampsia. Med Hypotheses 2017; 100:31-36. [PMID: 28236844 DOI: 10.1016/j.mehy.2017.01.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 12/15/2016] [Accepted: 01/15/2017] [Indexed: 12/13/2022]
Abstract
Sub-optimal maternal nutrition may result in pregnancy complications like preeclampsia. Preeclampsia is known to be of placental origin and a major cause of maternal morbidity and mortality worldwide. Our earlier studies suggest that altered metabolism of folic acid, vitamin B12 and long chain polyunsaturated fatty acid (LCPUFAs) in the one carbon cycle increases homocysteine levels in preeclampsia. Recent reports indicate that vitamin D deficiency may also have a role in preeclampsia, although the mechanisms are unclear. A disturbed one carbon cycle can influence methylation patterns of various genes involved in placental development. Altered expression of cystathionine beta synthase (CBS) gene can result in hyperhomocystenemia. Higher homocysteine levels are known to increase reactive oxygen species (ROS) production which in turn leads to increased expression of phospholipase A2 (PLA2) and cyclooxygenase-2 (COX-2). Higher expression of PLA2 and COX-2 can influence the release of arachidonic acid (AA) from membrane phospholipid and result in increased conversion to thromboxane. Vitamin D [1,25(OH)2D3] is known to induce the CBS gene expression while it can suppress the oxidative stress-induced COX-2 up-regulation and thromboxane production. Based on this, we propose a novel hypothesis that a disturbed vitamin D and LCPUFA metabolism influence the regulation of the one carbon cycle which will trigger inflammation through oxidative stress in preeclampsia. This may lead to altered feto-placental growth and development in preeclampsia.
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Affiliation(s)
- Anindita A Nandi
- Department of Nutritional Medicine, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth Deemed University, Pune 411043, India
| | - Nisha S Wadhwani
- Department of Nutritional Medicine, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth Deemed University, Pune 411043, India
| | - Sadhana R Joshi
- Department of Nutritional Medicine, Interactive Research School for Health Affairs (IRSHA), Bharati Vidyapeeth Deemed University, Pune 411043, India.
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215
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Chen Z, Chen F, Sun Y, Liu H, He H, Zhang X, Wang S. A novel ratiometric fluorescent probe for selective detection of bisulfite in living cells. RSC Adv 2017. [DOI: 10.1039/c6ra27347e] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
In this work, a new type of ratiometric fluorescent probe APCT for bisulfite anion based on Michael-type addition reaction was designed.
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Affiliation(s)
- Zhen Chen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
- PR China
| | - Fengzao Chen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
- PR China
| | - Yuanchao Sun
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
- PR China
| | - Heng Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
- PR China
| | - Hanping He
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
- PR China
| | - Xiuhua Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
- PR China
| | - Shengfu Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
- PR China
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216
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Faponle AS, de Visser SP. The Role of Nonheme Transition Metal-Oxo, -Peroxo, and -Superoxo Intermediates in Enzyme Catalysis and Reactions of Bioinspired Complexes. ADVANCES IN INORGANIC CHEMISTRY 2017. [DOI: 10.1016/bs.adioch.2017.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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217
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Engin AB, Engin A. The Interactions Between Kynurenine, Folate, Methionine and Pteridine Pathways in Obesity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 960:511-527. [PMID: 28585214 DOI: 10.1007/978-3-319-48382-5_22] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Obesity activates both innate and adaptive immune responses in adipose tissue. Elevated levels of eosinophils with depression of monocyte and neutrophil indicate the deficiencies in the immune system of morbidly obese individuals. Actually, adipose tissue macrophages are functional antigen-presenting cells that promote the proliferation of interferon-gamma (IFN-gamma)-producing CD4+ T cells in adipose tissue of obese subjects. Eventually, diet-induced obesity is associated with the loss of tissue homeostasis and development of type 1 inflammatory responses in visceral adipose tissue. Activity of inducible indoleamine 2,3-dioxygenase-1 (IDO-1) plays a major role under pro-inflammatory, IFN-gamma dominated settings. One of the two rate-limiting enzymes which can metabolize tryptophan to kynurenine is IDO-1. Tumor necrosis factor-alpha (TNF-alpha) correlates with IDO-1 in adipose compartments. Actually, IDO-1-mediated tryptophan catabolism due to chronic immune activation is the cause of reduced tryptophan plasma levels and be considered as the driving force for food intake in morbidly obese patients. Thus, decrease in plasma tryptophan levels and subsequent reduction in serotonin (5-HT) production provokes satiety dysregulation that leads to increased caloric uptake and obesity. However, after bariatric surgery, weight reduction does not lead to normalization of IDO-1 activity. Furthermore, there is a connection between arginine and tryptophan metabolic pathways in the generation of reactive nitrogen intermediates. Hence, abdominal obesity is associated with vascular endothelial dysfunction and reduced nitric oxide (NO) availability. IFN-gamma-induced activation of the inducible nitric oxide synthase (iNOS) and dissociation of endothelial adenosine monophosphate activated protein kinase (AMPK)- phosphoinositide 3-kinase (PI3K)-protein kinase B (Akt)- endothelial NO synthase (eNOS) pathway enhances oxidative stress production secondary to high-fat diet. Thus, reduced endothelial NO availability correlates with the increase in plasma non-esterified fatty acids and triglycerides levels. Additionally, in obese patients, folate-deficiency leads to hyperhomocysteinemia. Folic acid confers protection against hyperhomocysteinemia-induced oxidative stress.
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Affiliation(s)
- Ayse Basak Engin
- Faculty of Pharmacy, Department of Toxicology, Gazi University, Hipodrom, Ankara, Turkey.
| | - Atilla Engin
- Faculty of Medicine, Department of General Surgery, Gazi University, Besevler, Ankara, Turkey.
- , Mustafa Kemal Mah. 2137. Sok. 8/14, 06520, Cankaya, Ankara, Turkey.
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218
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Kumar SM, Haridoss M, Swaminathan K, Gopal RK, Clemens D, Dey A. The effects of changes in glutathione levels through exogenous agents on intracellular cysteine content and protein adduct formation in chronic alcohol-treated VL17A cells. Toxicol Mech Methods 2016; 27:128-135. [DOI: 10.1080/15376516.2016.1268229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- S. Mathan Kumar
- Life Science Division, AU-KBC Research Centre, MIT Campus of Anna University, Chennai, India
| | - Madhumitha Haridoss
- Life Science Division, AU-KBC Research Centre, MIT Campus of Anna University, Chennai, India
| | - Kavitha Swaminathan
- Life Science Division, AU-KBC Research Centre, MIT Campus of Anna University, Chennai, India
| | - Ramesh Kumar Gopal
- Life Science Division, AU-KBC Research Centre, MIT Campus of Anna University, Chennai, India
| | - Dahn Clemens
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- Nebraska and Western Iowa Veterans Administration Medical Center, University of Nebraska Medical Center, Omaha, NE, USA
- Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Aparajita Dey
- Life Science Division, AU-KBC Research Centre, MIT Campus of Anna University, Chennai, India
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219
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Zhou X, Liu L, Zhang Y, Pu J, Yang L, Zhou C, Yuan S, Zhang H, Xie P. Metabolomics identifies perturbations in amino acid metabolism in the prefrontal cortex of the learned helplessness rat model of depression. Neuroscience 2016; 343:1-9. [PMID: 27919695 DOI: 10.1016/j.neuroscience.2016.11.038] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 11/22/2016] [Accepted: 11/23/2016] [Indexed: 12/31/2022]
Abstract
Major depressive disorder is a serious psychiatric condition associated with high rates of suicide and is a leading cause of health burden worldwide. However, the underlying molecular mechanisms of major depression are still essentially unclear. In our study, a non-targeted gas chromatography-mass spectrometry-based metabolomics approach was used to investigate metabolic changes in the prefrontal cortex of the learned helplessness (LH) rat model of depression. Body-weight measurements and behavioral tests including the active escape test, sucrose preference test, forced swimming test, elevated plus-maze and open field test were used to assess changes in the behavioral spectrum after inescapable footshock stress. Rats in the stress group exhibited significant learned helpless and depression-like behaviors, while without any significant change in anxiety-like behaviors. Using multivariate and univariate statistical analysis, a total of 18 differential metabolites were identified after the footshock stress protocol. Ingenuity Pathways Analysis and MetaboAnalyst were applied for predicted pathways and biological functions analysis. "Amino Acid Metabolism, Molecule Transport, Small Molecule Biochemistry" was the most significantly altered network in the LH model. Amino acid metabolism, particularly glutamate metabolism, cysteine and methionine metabolism, arginine and proline metabolism, was significantly perturbed in the prefrontal cortex of LH rats.
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Affiliation(s)
- Xinyu Zhou
- Department of Neurology and Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lanxiang Liu
- Department of Neurology and Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
| | - Yuqing Zhang
- Department of Neurology and Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
| | - Juncai Pu
- Department of Neurology and Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
| | - Lining Yang
- Department of Neurology and Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
| | - Chanjuan Zhou
- Department of Neurology and Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
| | - Shuai Yuan
- Department of Neurology and Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
| | - Hanping Zhang
- Department of Neurology and Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
| | - Peng Xie
- Department of Neurology and Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China.
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220
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Fischer AA, Stracey N, Lindeman SV, Brunold TC, Fiedler AT. Synthesis, X-ray Structures, Electronic Properties, and O 2/NO Reactivities of Thiol Dioxygenase Active-Site Models. Inorg Chem 2016; 55:11839-11853. [PMID: 27801576 DOI: 10.1021/acs.inorgchem.6b01931] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Mononuclear non-heme iron complexes that serve as structural and functional mimics of the thiol dioxygenases (TDOs), cysteine dioxygenase (CDO) and cysteamine dioxygenase (ADO), have been prepared and characterized with crystallographic, spectroscopic, kinetic, and computational methods. The high-spin Fe(II) complexes feature the facially coordinating tris(4,5-diphenyl-1-methylimidazol-2-yl)phosphine (Ph2TIP) ligand that replicates the three histidine (3His) triad of the TDO active sites. Further coordination with bidentate l-cysteine ethyl ester (CysOEt) or cysteamine (CysAm) anions yielded five-coordinate (5C) complexes that resemble the substrate-bound forms of CDO and ADO, respectively. Detailed electronic-structure descriptions of the [Fe(Ph2TIP)(LS,N)]BPh4 complexes, where LS,N = CysOEt (1) or CysAm (2), were generated through a combination of spectroscopic techniques [electronic absorption, magnetic circular dichroism (MCD)] and density functional theory (DFT). Complexes 1 and 2 decompose in the presence of O2 to yield the corresponding sulfinic acid (RSO2H) products, thereby emulating the reactivity of the TDO enzymes and related complexes. Rate constants and activation parameters for the dioxygenation reactions were measured and interpreted with the aid of DFT calculations for O2-bound intermediates. Treatment of the TDO models with nitric oxide (NO)-a well-established surrogate of O2-led to a mixture of high-spin and low-spin {FeNO}7 species at low temperature (-70 °C), as indicated by electron paramagnetic resonance (EPR) spectroscopy. At room temperature, these Fe/NO adducts convert to a common species with EPR and infrared (IR) features typical of cationic dinitrosyl iron complexes (DNICs). To complement these results, parallel spectroscopic, computational, and O2/NO reactivity studies were carried out using previously reported TDO models that feature an anionic hydrotris(3-phenyl-5-methyl-pyrazolyl)borate (Ph,MeTp-) ligand. Though the O2 reactivities of the Ph2TIP- and Ph,MeTp-based complexes are quite similar, the supporting ligand perturbs the energies of Fe 3d-based molecular orbitals and modulates Fe-S bond covalency, suggesting possible rationales for the presence of neutral 3His coordination in CDO and ADO.
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Affiliation(s)
- Anne A Fischer
- Department of Chemistry, Marquette University , Milwaukee, Wisconsin 53201, United States
| | - Nuru Stracey
- Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Sergey V Lindeman
- Department of Chemistry, Marquette University , Milwaukee, Wisconsin 53201, United States
| | - Thomas C Brunold
- Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Adam T Fiedler
- Department of Chemistry, Marquette University , Milwaukee, Wisconsin 53201, United States
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221
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Tobler M, Passow CN, Greenway R, Kelley JL, Shaw JH. The Evolutionary Ecology of Animals Inhabiting Hydrogen Sulfide–Rich Environments. ANNUAL REVIEW OF ECOLOGY EVOLUTION AND SYSTEMATICS 2016. [DOI: 10.1146/annurev-ecolsys-121415-032418] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Hydrogen sulfide (H2S) is a respiratory toxicant that creates extreme environments tolerated by few organisms. H2S is also produced endogenously by metazoans and plays a role in cell signaling. The mechanisms of H2S toxicity and its physiological functions serve as a basis to discuss the multifarious strategies that allow animals to survive in H2S-rich environments. Despite their toxicity, H2S-rich environments also provide ecological opportunities, and complex selective regimes of covarying abiotic and biotic factors drive trait evolution in organisms inhabiting H2S-rich environments. Furthermore, adaptation to H2S-rich environments can drive speciation, giving rise to biodiversity hot spots with high levels of endemism in deep-sea hydrothermal vents, cold seeps, and freshwater sulfide springs. The diversity of H2S-rich environments and their inhabitants provides ideal systems for comparative studies of the effects of a clear-cut source of selection across vast geographic and phylogenetic scales, ultimately informing our understanding of how environmental stressors affect ecological and evolutionary processes.
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Affiliation(s)
- Michael Tobler
- Division of Biology, Kansas State University, Manhattan, Kansas 66506
| | | | - Ryan Greenway
- Division of Biology, Kansas State University, Manhattan, Kansas 66506
| | - Joanna L. Kelley
- School of Biological Sciences, Washington State University, Pullman, Washington 99164
| | - Jennifer H. Shaw
- Department of Integrative Biology, Oklahoma State University, Stillwater, Oklahoma 74078
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222
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Ueland PM, McCann A, Midttun Ø, Ulvik A. Inflammation, vitamin B6 and related pathways. Mol Aspects Med 2016; 53:10-27. [PMID: 27593095 DOI: 10.1016/j.mam.2016.08.001] [Citation(s) in RCA: 199] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 08/27/2016] [Indexed: 12/11/2022]
Abstract
The active form of vitamin B6, pyridoxal 5'-phosphate (PLP), serves as a co-factor in more than 150 enzymatic reactions. Plasma PLP has consistently been shown to be low in inflammatory conditions; there is a parallel reduction in liver PLP, but minor changes in erythrocyte and muscle PLP and in functional vitamin B6 biomarkers. Plasma PLP also predicts the risk of chronic diseases like cardiovascular disease and some cancers, and is inversely associated with numerous inflammatory markers in clinical and population-based studies. Vitamin B6 intake and supplementation improve some immune functions in vitamin B6-deficient humans and experimental animals. A possible mechanism involved is mobilization of vitamin B6 to the sites of inflammation where it may serve as a co-factor in pathways producing metabolites with immunomodulating effects. Relevant vitamin B6-dependent inflammatory pathways include vitamin B6 catabolism, the kynurenine pathway, sphingosine 1-phosphate metabolism, the transsulfuration pathway, and serine and glycine metabolism.
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Affiliation(s)
- Per Magne Ueland
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway; Laboratory of Clinical Biochemistry, Haukeland University Hospital, 5021 Bergen, Norway.
| | | | | | - Arve Ulvik
- Bevital A/S, Laboratoriebygget, 5021 Bergen, Norway
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223
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Long-term dietary supplementation with cystathionine improves tissue glutathione in ageing rats. Aging Clin Exp Res 2016; 28:781-5. [PMID: 26514972 DOI: 10.1007/s40520-015-0465-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 09/22/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND Ageing is associated with decrease in tissue glutathione that can be reduced by food fortification with the amino acid cysteine. However, cysteine is not stable in solution and generates bad taste. Cystathionine, the direct precursor of cysteine, could be a valuable alternative. AIMS This study aimed to determine whether long-term dietary supplementation with cystathionine induces an increase in glutathione pools. METHODS Aged rats (20.5-month-old) were fed ad libitum during 29 weeks with either a cystathionine-supplemented diet (7.3 g/kg, n = 90 rats) or a control iso-nitrogenous alanine-supplemented diet (2.9 g/kg, n = 90 rats). RESULTS Cystathionine was detected in the plasma of the cystathionine-supplemented rats but not in the control alanine-supplemented rats. Cystathionine increased glutathione concentrations in liver, small intestine and gastrocnemius muscle (P < 0.03). No adverse effect was observed. CONCLUSION Cystathionine supplementation being able to increase moderately glutathione in healthy old rats could be considered as a candidate for nutritional supports aiming to revert the stronger glutathione depletions occurring in unhealthy elderly.
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224
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Hydrogen sulfide mediates the protection of dietary restriction against renal senescence in aged F344 rats. Sci Rep 2016; 6:30292. [PMID: 27456368 PMCID: PMC4960595 DOI: 10.1038/srep30292] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 07/01/2016] [Indexed: 12/02/2022] Open
Abstract
Renal aging is always accompanied by increased oxidative stress. Hydrogen sulfide (H2S) can be up-regulated by 50% dietary restriction (DR) for 7-day and can block mitochondrial oxidative stress. H2S production exerts a critical role in yeast, worm, and fruit fly models of DR-mediated longevity. In this study, we found that renal aging could be attenuated by 30% DR for 6-month (DR-6M) and life-long (DR-LL), but not for 6-week (DR-6W). The expressions of cystathionine-γ-lyase (CGL) and cystathionine-β- synthase (CBS) were improved by DR-6M and DR-LL. Endogenous H2S production shared the same trend with CBS and CGL, while glutathione (GSH) didn’t. When comparing efficiencies of DR for different durations, more evident production of H2S was found in DR-6M and DR-LL than in DR-6W. Finally the level of oxidative stress was improved by DR-6M and DR-LL rather than by DR-6W. It concluded that aged rats had the ability to produce enough H2S on 30% DR interventions protecting against renal aging, and the effect of DR for long-term were more significant than that of DR for short-term.
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225
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Zhu X, Zhu L, Liu HW, Hu X, Peng RZ, Zhang J, Zhang XB, Tan W. A two-photon fluorescent turn-on probe for imaging of SO2 derivatives in living cells and tissues. Anal Chim Acta 2016; 937:136-42. [PMID: 27590555 DOI: 10.1016/j.aca.2016.07.017] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 07/17/2016] [Accepted: 07/19/2016] [Indexed: 01/30/2023]
Abstract
SO2 and its derivatives (bisulfite/sulfite) play crucial roles in several physiological processes. Therefore, development of reliable analytical methods for monitoring SO2 and its derivatives in biological systems is very significant. In this paper, a FRET-based two-photon fluorescent turn-on probe, A-HCy, was proposed for specific detection of SO2 derivatives through the bisulfite/sulfite-promoted Michael addition reaction. In this FRET system, an acedan (2-acetyl-6-dialkylaminonaphthalene) moiety was selected as a two-photon donor and a hemicyanine derivative served as both the quencher and the recognition unit for bisulfite/sulfite. A-HCy exhibited excellent selectivity and rapid response to HSO3(-) with a detection limit of 0.24 μM. More importantly, probe A-HCy was first successfully applied in two-photon fluorescence imaging of biological SO2 derivatives in living cells and tissues, suggesting its great potential for practical application in biological systems.
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Affiliation(s)
- Xiaoyan Zhu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan, 410082, China
| | - Longming Zhu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan, 410082, China
| | - Hong-Wen Liu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan, 410082, China
| | - Xiaoxiao Hu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan, 410082, China
| | - Rui-Zi Peng
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan, 410082, China
| | - Jing Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan, 410082, China
| | - Xiao-Bing Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan, 410082, China.
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan, 410082, China.
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226
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Liu Y, Li K, Xie KX, Li LL, Yu KK, Wang X, Yu XQ. A water-soluble and fast-response mitochondria-targeted fluorescent probe for colorimetric and ratiometric sensing of endogenously generated SO2 derivatives in living cells. Chem Commun (Camb) 2016; 52:3430-3. [PMID: 26833293 DOI: 10.1039/c5cc10505f] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A novel water-soluble mitochondria-targeted ratiometric fluorescent probe (Cl-2) is presented. Cl-2 can respond selectively to SO2 derivatives within 1 min. Notably, Cl-2 can be used to monitor successfully the concentration change of endogenously generated SO2 derivatives in living cells.
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Affiliation(s)
- Yu Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China. ;
| | - Kun Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China. ;
| | - Ke-Xin Xie
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Ling-Ling Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China. ;
| | - Kang-Kang Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China. ;
| | - Xin Wang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China. ;
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China. ;
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227
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Schulz‐Mirbach T, Eifert C, Riesch R, Farnworth MS, Zimmer C, Bierbach D, Klaus S, Tobler M, Streit B, Indy JR, Arias‐Rodriguez L, Plath M. Toxic hydrogen sulphide shapes brain anatomy: a comparative study of sulphide‐adapted ecotypes in the
Poecilia mexicana
complex. J Zool (1987) 2016. [DOI: 10.1111/jzo.12366] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- T. Schulz‐Mirbach
- Department Biology II Ludwig‐Maximilians‐University Munich Planegg‐Martinsried Germany
| | - C. Eifert
- Ecology and Evolution J. W. Goethe University Frankfurt Frankfurt am Main Germany
| | - R. Riesch
- School of Biological Sciences Royal Holloway University of London Egham UK
| | - M. S. Farnworth
- Göttingen Center for Molecular Biosciences Georg‐August‐University Göttingen Göttingen Germany
| | - C. Zimmer
- Ecology and Evolution J. W. Goethe University Frankfurt Frankfurt am Main Germany
| | - D. Bierbach
- Department of Biology and Ecology of Fishes Leibniz‐Institute of Freshwater Ecology and Inland Fisheries Berlin Germany
| | - S. Klaus
- Ecology and Evolution J. W. Goethe University Frankfurt Frankfurt am Main Germany
| | - M. Tobler
- Division of Biology Kansas State University Manhattan KS USA
| | - B. Streit
- Ecology and Evolution J. W. Goethe University Frankfurt Frankfurt am Main Germany
| | - J. R. Indy
- División Académica de Ciencias Biológicas Universidad Juárez Autónoma de Tabasco (UJAT) Villahermosa Tabasco México
| | - L. Arias‐Rodriguez
- División Académica de Ciencias Biológicas Universidad Juárez Autónoma de Tabasco (UJAT) Villahermosa Tabasco México
| | - M. Plath
- College of Animal Science and Technology Northwest A&F University Yangling China
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228
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Takemoto Y. Central cardiovascular actions of l-homocysteine microinjected into ventrolateral medullary autonomic areas of the rat. Amino Acids 2016; 48:2215-25. [DOI: 10.1007/s00726-016-2259-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 05/07/2016] [Indexed: 02/07/2023]
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229
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McCune C, Chan SJ, Beio ML, Shen W, Chung WJ, Szczesniak LM, Chai C, Koh SQ, Wong PTH, Berkowitz DB. "Zipped Synthesis" by Cross-Metathesis Provides a Cystathionine β-Synthase Inhibitor that Attenuates Cellular H2S Levels and Reduces Neuronal Infarction in a Rat Ischemic Stroke Model. ACS CENTRAL SCIENCE 2016; 2:242-52. [PMID: 27163055 PMCID: PMC4850510 DOI: 10.1021/acscentsci.6b00019] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Indexed: 05/08/2023]
Abstract
The gaseous neuromodulator H2S is associated with neuronal cell death pursuant to cerebral ischemia. As cystathionine β-synthase (CBS) is the primary mediator of H2S biogenesis in the brain, it has emerged as a potential target for the treatment of stroke. Herein, a "zipped" approach by alkene cross-metathesis into CBS inhibitor candidate synthesis is demonstrated. The inhibitors are modeled after the pseudo-C 2-symmetric CBS product (l,l)-cystathionine. The "zipped" concept means only half of the inhibitor needs be constructed; the two halves are then fused by olefin cross-metathesis. Inhibitor design is also mechanism-based, exploiting the favorable kinetics associated with hydrazine-imine interchange as opposed to the usual imine-imine interchange. It is demonstrated that the most potent "zipped" inhibitor 6S reduces H2S production in SH-SY5Y cells overexpressing CBS, thereby reducing cell death. Most importantly, CBS inhibitor 6S dramatically reduces infarct volume (1 h post-stroke treatment; ∼70% reduction) in a rat transient middle cerebral artery occlusion model for ischemia.
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Affiliation(s)
- Christopher
D. McCune
- Department
of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
| | - Su Jing Chan
- Department
of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597
| | - Matthew L. Beio
- Department
of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
| | - Weijun Shen
- Department
of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
| | - Woo Jin Chung
- Department
of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
| | - Laura M. Szczesniak
- Department
of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
| | - Chou Chai
- Neurodegeneration
Research Laboratory, National Neuroscience
Institute, Singapore 308433
| | - Shu Qing Koh
- Department
of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597
| | - Peter T.-H. Wong
- Department
of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597
- (P.T.-H.W.) E-mail:
| | - David B. Berkowitz
- Department
of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
- (D.B.D.) E-mail:
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230
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Hussein AH, Batista ED, Miesner MD, Titgemeyer EC. Effect of ruminal ammonia supply on lysine utilization by growing steers. J Anim Sci 2016; 94:656-64. [PMID: 27065136 DOI: 10.2527/jas.2015-9717] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Six ruminally cannulated Holstein steers (202 ± 15 kg) were used to study the effects of ruminal ammonia loading on whole-body lysine (Lys) utilization. Steers were housed in metabolism crates and used in a 6 × 6 Latin square design. All steers received 2.52 kg DM/d of a diet (10.1% CP) containing 82% soybean hulls, 8% wheat straw, 5% cane molasses, and 5% vitamins and minerals, and 10 g/d of urea (considered to be part of the basal diet) was ruminally infused continuously to ensure adequate ruminal ammonia concentrations. All steers were ruminally infused continuously with 200 g/d of acetic acid, 200 g/d of propionic acid, and 50 g/d of butyric acid and abomasally infused with 300 g/d of glucose continuously to increase energy supply without increasing microbial protein supply. Steers were also abomasally infused continuously with an excess of all essential AA except Lys to ensure that Lys was the only limiting AA. Treatments were arranged as a 3 × 2 factorial with 3 levels of urea (0, 40, or 80 g/d) continuously infused ruminally to induce ammonia loading and 2 levels of Lys (0 or 6 g/d) continuously infused abomasally. Treatments did not affect fecal N output ( = 0.37). Lysine supplementation decreased ( < 0.01) urinary N excretion from 51.9 g/d to 44.3 g/d, increased ( < 0.01) retained N from 24.8 to 33.8 g/d, increased ( < 0.01) plasma Lys, and decreased ( ≤ 0.05) plasma serine, tyrosine, valine, leucine, and phenylalanine. Lysine supplementation also tended ( = 0.09) to reduce plasma urea-N. Urea infusions linearly increased ( = 0.05) retained N (27.1, 29.3, and 31.5 g/d) and also linearly increased ( < 0.01) urinary N excretion (31.8, 48.1, and 64.4 g/d), urinary urea (21.9, 37.7, and 54.3 g/d), urinary ammonia (1.1, 1.4, and 1.9 g/d), and plasma urea (2.7, 4.0, and 5.1 mM), and linearly decreased plasma alanine ( = 0.04) and plasma glycine ( < 0.01). Assuming that retained protein is 6.25 × retained N and contains 6.4% Lys, the incremental efficiencies of infused Lys utilization were 51%, 59%, and 69% for steers receiving 0, 40, and 80 g/d of urea, respectively, indicating that ruminal ammonia loads may improve the efficiency of Lys utilization. This is supported by observed increases in whole body-protein deposition in response to ammonia loading of our steers that were, by design, Lys deficient.
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231
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DeLeon ER, Gao Y, Huang E, Arif M, Arora N, Divietro A, Patel S, Olson KR. A case of mistaken identity: are reactive oxygen species actually reactive sulfide species? Am J Physiol Regul Integr Comp Physiol 2016; 310:R549-60. [PMID: 26764057 PMCID: PMC4867382 DOI: 10.1152/ajpregu.00455.2015] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 12/31/2015] [Indexed: 12/31/2022]
Abstract
Stepwise one-electron reduction of oxygen to water produces reactive oxygen species (ROS) that are chemically and biochemically similar to reactive sulfide species (RSS) derived from one-electron oxidations of hydrogen sulfide to elemental sulfur. Both ROS and RSS are endogenously generated and signal via protein thiols. Given the similarities between ROS and RSS, we wondered whether extant methods for measuring the former would also detect the latter. Here, we compared ROS to RSS sensitivity of five common ROS methods: redox-sensitive green fluorescent protein (roGFP), 2', 7'-dihydrodichlorofluorescein, MitoSox Red, Amplex Red, and amperometric electrodes. All methods detected RSS and were as, or more, sensitive to RSS than to ROS. roGFP, arguably the "gold standard" for ROS measurement, was more than 200-fold more sensitive to the mixed polysulfide H2Sn(n = 1-8) than to H2O2 These findings suggest that RSS may be far more prevalent in intracellular signaling than previously appreciated and that the contribution of ROS may be overestimated. This conclusion is further supported by the observation that estimated daily sulfur metabolism and ROS production are approximately equal and the fact that both RSS and antioxidant mechanisms have been present since the origin of life, nearly 4 billion years ago, long before the rise in environmental oxygen 600 million years ago. Although ROS are assumed to be the most biologically relevant oxidants, our results question this paradigm. We also anticipate our findings will direct attention toward development of novel and clinically relevant anti-(RSS)-oxidants.
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Affiliation(s)
- Eric R DeLeon
- Indiana University School of Medicine-South Bend Center, South Bend, Indiana; and Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana
| | - Yan Gao
- Indiana University School of Medicine-South Bend Center, South Bend, Indiana; and
| | - Evelyn Huang
- Indiana University School of Medicine-South Bend Center, South Bend, Indiana; and Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana
| | - Maaz Arif
- Indiana University School of Medicine-South Bend Center, South Bend, Indiana; and
| | - Nitin Arora
- Indiana University School of Medicine-South Bend Center, South Bend, Indiana; and
| | - Alexander Divietro
- Indiana University School of Medicine-South Bend Center, South Bend, Indiana; and
| | - Shivali Patel
- Indiana University School of Medicine-South Bend Center, South Bend, Indiana; and
| | - Kenneth R Olson
- Indiana University School of Medicine-South Bend Center, South Bend, Indiana; and
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Expression of genes, encoding the enzymes of cysteine metabolism in human placenta in the first and third trimesters of uncomplicated pregnancy. UKRAINIAN BIOCHEMICAL JOURNAL 2016; 88:88-98. [DOI: 10.15407/ubj88.01.088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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233
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Xin X, Wang J, Gong C, Xu H, Wang R, Ji S, Dong H, Meng Q, Zhang L, Dai F, Sun D. Cyclodextrin-Based Metal-Organic Nanotube as Fluorescent Probe for Selective Turn-On Detection of Hydrogen Sulfide in Living Cells Based on H2S-Involved Coordination Mechanism. Sci Rep 2016; 6:21951. [PMID: 26911657 PMCID: PMC4766401 DOI: 10.1038/srep21951] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 01/19/2016] [Indexed: 01/15/2023] Open
Abstract
Hydrogen sulfide (H2S) has been considered as the third biologically gaseous messenger (gasotransmitter) after nitric oxide (NO) and carbon monoxide (CO). Fluorescent detection of H2S in living cells is very important to human health because it has been found that the abnormal levels of H2S in human body can cause Alzheimer’s disease, cancers and diabetes. Herein, we develop a cyclodextrin-based metal-organic nanotube, CD-MONT-2, possessing a {Pb14} metallamacrocycle for efficient detection of H2S. CD-MONT-2′ (the guest-free form of CD-MONT-2) exhibits turn-on detection of H2S with high selectivity and moderate sensitivity when the material was dissolved in DMSO solution. Significantly, CD-MONT-2′ can act as a fluorescent turn-on probe for highly selective detection of H2S in living cells. The sensing mechanism in the present work is based on the coordination of H2S as the auxochromic group to the central Pb(II) ion to enhance the fluorescence intensity, which is studied for the first time.
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Affiliation(s)
- Xuelian Xin
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao Shandong 266580, China
| | - Jingxin Wang
- Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao 266580, China
| | - Chuanfang Gong
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao Shandong 266580, China
| | - Hai Xu
- Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao 266580, China
| | - Rongming Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao Shandong 266580, China
| | - Shijie Ji
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao Shandong 266580, China
| | - Hanxiao Dong
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao Shandong 266580, China
| | - Qingguo Meng
- Chemistry &Chemical and Environmental Engineering College, Weifang University, Weifang 261061, Shandong Province, China
| | - Liangliang Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao Shandong 266580, China
| | - Fangna Dai
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao Shandong 266580, China
| | - Daofeng Sun
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao Shandong 266580, China
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234
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Kelley JL, Arias-Rodriguez L, Patacsil Martin D, Yee MC, Bustamante CD, Tobler M. Mechanisms Underlying Adaptation to Life in Hydrogen Sulfide-Rich Environments. Mol Biol Evol 2016; 33:1419-34. [PMID: 26861137 PMCID: PMC4868117 DOI: 10.1093/molbev/msw020] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Hydrogen sulfide (H2S) is a potent toxicant interfering with oxidative phosphorylation in mitochondria and creating extreme environmental conditions in aquatic ecosystems. The mechanistic basis of adaptation to perpetual exposure to H2S remains poorly understood. We investigated evolutionarily independent lineages of livebearing fishes that have colonized and adapted to springs rich in H2S and compared their genome-wide gene expression patterns with closely related lineages from adjacent, nonsulfidic streams. Significant differences in gene expression were uncovered between all sulfidic and nonsulfidic population pairs. Variation in the number of differentially expressed genes among population pairs corresponded to differences in divergence times and rates of gene flow, which is consistent with neutral drift driving a substantial portion of gene expression variation among populations. Accordingly, there was little evidence for convergent evolution shaping large-scale gene expression patterns among independent sulfide spring populations. Nonetheless, we identified a small number of genes that was consistently differentially expressed in the same direction in all sulfidic and nonsulfidic population pairs. Functional annotation of shared differentially expressed genes indicated upregulation of genes associated with enzymatic H2S detoxification and transport of oxidized sulfur species, oxidative phosphorylation, energy metabolism, and pathways involved in responses to oxidative stress. Overall, our results suggest that modification of processes associated with H2S detoxification and toxicity likely complement each other to mediate elevated H2S tolerance in sulfide spring fishes. Our analyses allow for the development of novel hypotheses about biochemical and physiological mechanisms of adaptation to extreme environments.
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Affiliation(s)
| | - Lenin Arias-Rodriguez
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, México
| | | | - Muh-Ching Yee
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA
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235
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Kowalczyk-Pachel D, Iciek M, Wydra K, Nowak E, Górny M, Filip M, Włodek L, Lorenc-Koci E. Cysteine Metabolism and Oxidative Processes in the Rat Liver and Kidney after Acute and Repeated Cocaine Treatment. PLoS One 2016; 11:e0147238. [PMID: 26808533 PMCID: PMC4726505 DOI: 10.1371/journal.pone.0147238] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 12/30/2015] [Indexed: 12/31/2022] Open
Abstract
The role of cocaine in modulating the metabolism of sulfur-containing compounds in the peripheral tissues is poorly understood. In the present study we addressed the question about the effects of acute and repeated (5 days) cocaine (10 mg/kg i.p.) administration on the total cysteine (Cys) metabolism and on the oxidative processes in the rat liver and kidney. The whole pool of sulfane sulfur, its bound fraction and hydrogen sulfide (H2S) were considered as markers of anaerobic Cys metabolism while the sulfate as a measure of its aerobic metabolism. The total-, non-protein- and protein- SH group levels were assayed as indicators of the redox status of thiols. Additionally, the activities of enzymes involved in H2S formation (cystathionine γ-lyase, CSE; 3-mercaptopyruvate sulfurtransferase, 3-MST) and GSH metabolism (γ-glutamyl transpeptidase, γ-GT; glutathione S-transferase, GST) were determined. Finally, we assayed the concentrations of reactive oxygen species (ROS) and malondialdehyde (MDA) as markers of oxidative stress and lipid peroxidation, respectively. In the liver, acute cocaine treatment, did not change concentrations of the whole pool of sulfane sulfur, its bound fraction, H2S or sulfate but markedly decreased levels of non-protein SH groups (NPSH), ROS and GST activity while γ-GT was unaffected. In the kidney, acute cocaine significantly increased concentration of the whole pool of sulfane sulfur, reduced the content of its bound fraction but H2S, sulfate and NPSH levels were unchanged while ROS and activities of GST and γ-GT were reduced. Acute cocaine enhanced activity of the CSE and 3-MST in the liver and kidney, respectively. Repeatedly administered cocaine enhanced the whole pool of sulfane sulfur and reduced H2S level simultaneously increasing sulfate content both in the liver and kidney. After repeated cocaine, a significant decrease in ROS was still observed in the liver while in the kidney, despite unchanged ROS content, a marked increase in MDA level was visible. The repeated cocaine decreased 3-MST and increased γ-GT activities in both organs but reduced GST in the kidney. Our results show that cocaine administered at a relatively low dose shifts Cys metabolism towards the formation of sulfane sulfur compounds which possess antioxidant and redox regulatory properties and are a source of H2S which can support mitochondrial bioenergetics.
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Affiliation(s)
| | - Małgorzata Iciek
- The Chair of Medical Biochemistry, Jagiellonian University Medical College, Cracow, Poland
| | - Karolina Wydra
- Laboratory of Drug Addiction Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Cracow, Poland
| | - Ewa Nowak
- Laboratory of Drug Addiction Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Cracow, Poland
| | - Magdalena Górny
- The Chair of Medical Biochemistry, Jagiellonian University Medical College, Cracow, Poland
| | - Małgorzata Filip
- Laboratory of Drug Addiction Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Cracow, Poland
| | - Lidia Włodek
- The Chair of Medical Biochemistry, Jagiellonian University Medical College, Cracow, Poland
| | - Elżbieta Lorenc-Koci
- Department of Neuro-Psychopharmacology, Institute of Pharmacology, Polish Academy of Sciences, Cracow, Poland
- * E-mail:
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236
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Wang G, Chen H, Chen X, Xie Y. A novel carbazole-based mitochondria-targeted ratiometric fluorescent probe for bisulfite in living cells. RSC Adv 2016. [DOI: 10.1039/c5ra27805h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
A novel carbazole–indolium based mitochondria-targeted ratiometric fluorescent probe was developed, which could selectively respond to bisulfite among other sulfur-containing species in living cells.
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Affiliation(s)
| | - Hao Chen
- State Key Laboratory of Biotherapy and Cancer Center
- West China Hospital
- Sichuan University, and Collaborative Innovation Center for Biotherapy
- Chengdu
- P. R. China
| | - Xiuli Chen
- State Key Laboratory of Biotherapy and Cancer Center
- West China Hospital
- Sichuan University, and Collaborative Innovation Center for Biotherapy
- Chengdu
- P. R. China
| | - Yongmei Xie
- State Key Laboratory of Biotherapy and Cancer Center
- West China Hospital
- Sichuan University, and Collaborative Innovation Center for Biotherapy
- Chengdu
- P. R. China
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237
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Zhang D, Wenya L, Chen K, Cheng J, Zhao Y, Ye Y. A novel rosamine-based fluorescent probe for bisulfite in aqueous solution. RSC Adv 2016. [DOI: 10.1039/c6ra24667b] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
A new rosamine-based fluorescent chemodosimeter has been developed for highly sensitive and selective detection of bisulfite in aqueous solution.
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Affiliation(s)
- Di Zhang
- Institute of Agricultural Quality Standards and Testing Technology
- Henan Academy of Agricultural Sciences
- Zhengzhou
- China
| | - Liu Wenya
- Phosphorus Chemical Engineering Research Center of Henan Province
- The College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
| | - Keke Chen
- Phosphorus Chemical Engineering Research Center of Henan Province
- The College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
| | - Junye Cheng
- Phosphorus Chemical Engineering Research Center of Henan Province
- The College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
| | - Yufen Zhao
- Phosphorus Chemical Engineering Research Center of Henan Province
- The College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
| | - Yong Ye
- Phosphorus Chemical Engineering Research Center of Henan Province
- The College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- China
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238
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Olson KR, Straub KD. The Role of Hydrogen Sulfide in Evolution and the Evolution of Hydrogen Sulfide in Metabolism and Signaling. Physiology (Bethesda) 2016; 31:60-72. [DOI: 10.1152/physiol.00024.2015] [Citation(s) in RCA: 136] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The chemical versatility of sulfur and its abundance in the prebiotic Earth as reduced sulfide (H2S) implicate this molecule in the origin of life 3.8 billion years ago and also as a major source of energy in the first seven-eighths of evolution. The tremendous increase in ambient oxygen ∼600 million years ago brought an end to H2S as an energy source, and H2S-dependent animals either became extinct, retreated to isolated sulfide niches, or adapted. The first 3 billion years of molecular tinkering were not lost, however, and much of this biochemical armamentarium easily adapted to an oxic environment where it contributes to metabolism and signaling even in humans. This review examines the role of H2S in evolution and the evolution of H2S metabolism and signaling.
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Affiliation(s)
- Kenneth R. Olson
- Indiana University School of Medicine, South Bend, South Bend, Indiana; and
| | - Karl D. Straub
- Central Arkansas Veteran's Healthcare System and University of Arkansas for Medical Sciences, Little Rock, Arkansas
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239
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Holwerda KM, Weedon-Fekjær MS, Staff AC, Nolte IM, van Goor H, Lely AT, Faas MM. The association of single nucleotide polymorphisms of the maternal cystathionine-β-synthase gene with early-onset preeclampsia. Pregnancy Hypertens 2015; 6:60-5. [PMID: 26955774 DOI: 10.1016/j.preghy.2015.12.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 12/08/2015] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Preeclampsia (PE) is a pregnancy complication, characterized by hypertension and proteinuria. The transsulfuration pathway may be involved in its pathophysiology, since homocysteine, cystathionine and cysteine are increased in PE. Cystathionine-β-synthase (CBS) is a key-enzyme in the pathway, converting homocysteine into cysteine via cystathionine. Another product of CBS is hydrogen sulfide (H2S), a vasodilatory, proangiogenic and cytoprotective gas that is thought to play a role in placental and vascular function during pregnancy. Since single nucleotide polymorphisms (SNPs) can affect CBS expression and/or function, we studied tag-SNPs in the CBS gene in PE patients. STUDY DESIGN Controls (n=75), early-onset (n=45), and late-onset PE (n=52) cases were genotyped for six tag-SNPs in the CBS gene; rs12329764, rs2851391, rs234713, rs234706, rs1789953, and rs11203172. Plasma homocysteine, cysteine and cystathionine were determined during pregnancy. MAIN OUTCOME MEASURES Early-onset PE, late-onset PE. RESULTS Women with the minor allele of rs11203172 have a reduced risk for early-onset PE. Compared to women without the minor allele, normotensive pregnant women with the minor allele of rs11203172 and rs234713 have lower cysteine levels. Women with the minor allele of rs1789953 have increased levels of cysteine and cystathionine, compared to women without. CONCLUSION The CBS tag-SNP rs11203172 is associated with a decreased risk for early-onset PE. Decreased cysteine concentrations in normotensive pregnant women carrying the minor allele of rs11203172, may be due to increased cysteine conversion to H2S by CBS. Higher H2S levels may positively affect placentation and vascular function during pregnancy and decrease their risk for PE.
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Affiliation(s)
- Kim M Holwerda
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, PO Box 30001, 9713 GZ Groningen, The Netherlands.
| | - M Susanne Weedon-Fekjær
- University of Oslo, Department of Obstetrics and Gynaecology, Oslo University Hospital, Ulleval, 0424 Oslo, Norway.
| | - Anne C Staff
- University of Oslo, Department of Obstetrics and Gynaecology, Oslo University Hospital, Ulleval, 0424 Oslo, Norway.
| | - Ilja M Nolte
- Department of Epidemiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, PO Box 30001, 9713 GZ Groningen, The Netherlands.
| | - Harry van Goor
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, PO Box 30001, 9713 GZ Groningen, The Netherlands.
| | - A Titia Lely
- Department of Obstetrics and Gynecology, University Medical Center Utrecht, University of Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands.
| | - Marijke M Faas
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, PO Box 30001, 9713 GZ Groningen, The Netherlands; Department of Obstetrics and Gynaecology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
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Abstract
This review is focused on formation and biological significance of hydropersulfides, i.e. S-sulfhydration process. Biogenesis and properties of reactive sulfur species and their role in redox signaling are presented. The effect of S-sulfhydration on protein function is discussed. For many years reactive oxygen and nitrogen species (ROS and RNS) have been recognized as key messengers in the process of thiol-based redox regulation. Relatively recently, literature reports began to mention reactive sulfur species (RSS) and their role in thiol regulation. This review is focused on biogenesis and biological properties of RSS, including: hydropersulfides, polysulfides and hydrogen sulfide (H2S). Based on the most up-to-date literature data, the paper presents biological significance of S-sulfhydration process. In this reaction, sulfane sulfur is transferred to the–SH groups forming hydropersulfides. Protein cysteine residues, called ‘redox switches’ are susceptible to such reversible modifications. In line with the most recent reports, it was emphasized that sulfane sulfur-containing compounds (mainly hydrogen persulfides and polysulfides) are real and better mediators of S-sulfhydration-based signalling than H2S. We also overviewed proteins participating in the formation and transport of RSS and in mitochondrial H2S oxidation. In addition, we reviewed many reports about proteins unrelated to sulfur metabolism which are modified by S-sulfhydration that influences their catalytic activity. We also addressed the problem of the regulatory function of S-sulfhydration reaction in the activation of KATP channels (vasorelaxant) and transcription factors (e.g. NFκB) as well as in the mechanism of therapeutic action of garlic-derived sulfur compounds. Some aspects of comparison between RNS and RSS are also discussed in this review.
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241
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Xu J, Pan J, Jiang X, Qin C, Zeng L, Zhang H, Zhang JF. A mitochondria-targeted ratiometric fluorescent probe for rapid, sensitive and specific detection of biological SO2 derivatives in living cells. Biosens Bioelectron 2015; 77:725-32. [PMID: 26499868 DOI: 10.1016/j.bios.2015.10.049] [Citation(s) in RCA: 158] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 10/14/2015] [Accepted: 10/15/2015] [Indexed: 12/21/2022]
Abstract
In this study, we report a ratiometric fluorescent probe (CZBI) for sulfur dioxide (SO2) derivatives based on the conjugate of carbazole and benzo[e]indolium, which displays colorimetric and ratiometric fluorescence dual response to HSO3(-). The probe can quantitatively detect HSO3(-) with high specificity, fast response (within 40s) as well as low detection limit (10nM). A 1,4-nucleophilic addition reaction was proposed for the sensing mechanism of this probe, which was confirmed by (1)H NMR and HR-MS spectra. Fluorescence co-localization studies demonstrated that CZBI was a specific mitochondria-targeted fluorescent probe for SO2 derivatives with excellent cell membrane permeability. Furthermore, fluorescence imaging of HeLa cells indicated that CZBI could be used for monitoring the intrinsically generated intracellular SO2 derivatives in living cells by ratiometric fluorescence imaging. Thus, CZBI has a great potential application for exploring the role played by SO2 derivatives in biology.
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Affiliation(s)
- Junchao Xu
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Jian Pan
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Xiaoming Jiang
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Caiqin Qin
- Department of Chemistry and Material Sciences, Hubei Engineering University, Xiaogan 432000, PR China
| | - Lintao Zeng
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
| | - Huan Zhang
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Jun Feng Zhang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, PR China.
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242
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Zhang X, Diao R, Zhu X, Li Z, Cai Z. Metabolic characterization of asthenozoospermia using nontargeted seminal plasma metabolomics. Clin Chim Acta 2015; 450:254-61. [DOI: 10.1016/j.cca.2015.09.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 08/27/2015] [Accepted: 09/01/2015] [Indexed: 12/26/2022]
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243
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Jiang H, Hurt KJ, Breen K, Stabler SP, Allen RH, Orlicky DJ, Maclean KN. Sex-specific dysregulation of cysteine oxidation and the methionine and folate cycles in female cystathionine gamma-lyase null mice: a serendipitous model of the methylfolate trap. Biol Open 2015; 4:1154-62. [PMID: 26276101 PMCID: PMC4582125 DOI: 10.1242/bio.013433] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
In addition to its role in the endogenous synthesis of cysteine, cystathionine gamma-lyase (CGL) is a major physiological source of the vasorelaxant hydrogen sulfide. Cgl null mice are potentially useful for studying the influence of this compound upon vascular tone and endothelial function. Here, we confirm a previous report that female Cgl null mice exhibit an approximate 45-fold increase in plasma total homocysteine compared to wild type controls. This level of homocysteine is approximately 3.5-fold higher than that observed in male Cgl null mice and is essentially equivalent to that observed in mouse models of cystathionine beta synthase deficient homocystinuria. Cgl null mice of both sexes exhibited decreased expression of methylenetetrahydrofolate reductase and cysteinesulfinate decarboxylase compared to WT controls. Female Cgl null mice exhibited a sex-specific induction of betaine homocysteine S-methyltransferase and methionine adenosyltransferase 1, alpha and a 70% decrease in methionine synthase expression accompanied by significantly decreased plasma methionine. Decreased plasma cysteine levels in female Cgl null mice were associated with sex-specific dysregulation of cysteine dioxygenase expression. Comparative histological assessment between cystathionine beta-synthase and Cgl null mice indicated that the therapeutic potential of cystathionine against liver injury merits possible further investigation. Collectively, our data demonstrates the importance of considering sex when investigating mouse models of inborn errors of metabolism and indicate that while female Cgl null mice are of questionable utility for studying the physiological role of hydrogen sulfide, they could serve as a useful model for studying the consequences of methionine synthase deficiency and the methylfolate trap.
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Affiliation(s)
- Hua Jiang
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - K Joseph Hurt
- Department of Obstetrics and Gynecology, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Kelsey Breen
- Department of Obstetrics and Gynecology, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Sally P Stabler
- Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Robert H Allen
- Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - David J Orlicky
- Department of Pathology, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Kenneth N Maclean
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO 80045, USA
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244
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A mitochondria-targeted ratiometric fluorescent probe to monitor endogenously generated sulfur dioxide derivatives in living cells. Biomaterials 2015; 56:1-9. [DOI: 10.1016/j.biomaterials.2015.03.038] [Citation(s) in RCA: 194] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 03/16/2015] [Accepted: 03/23/2015] [Indexed: 12/23/2022]
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245
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Yin J, Ren W, Yang G, Duan J, Huang X, Fang R, Li C, Li T, Yin Y, Hou Y, Kim SW, Wu G. L-Cysteine metabolism and its nutritional implications. Mol Nutr Food Res 2015; 60:134-46. [PMID: 25929483 DOI: 10.1002/mnfr.201500031] [Citation(s) in RCA: 205] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 04/08/2015] [Accepted: 04/23/2015] [Indexed: 01/17/2023]
Abstract
L-Cysteine is a nutritionally semiessential amino acid and is present mainly in the form of L-cystine in the extracellular space. With the help of a transport system, extracellular L-cystine crosses the plasma membrane and is reduced to L-cysteine within cells by thioredoxin and reduced glutathione (GSH). Intracellular L-cysteine plays an important role in cellular homeostasis as a precursor for protein synthesis, and for production of GSH, hydrogen sulfide (H(2)S), and taurine. L-Cysteine-dependent synthesis of GSH has been investigated in many pathological conditions, while the pathway for L-cysteine metabolism to form H(2)S has received little attention with regard to prevention and treatment of disease in humans. The main objective of this review is to highlight the metabolic pathways of L-cysteine catabolism to GSH, H(2)S, and taurine, with special emphasis on therapeutic and nutritional use of L-cysteine to improve the health and well-being of animals and humans.
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Affiliation(s)
- Jie Yin
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Wenkai Ren
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Guan Yang
- Department of Animal Science, University of Florida, Gainesville, FL, USA
| | - Jielin Duan
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xingguo Huang
- Department of Animal Science, Hunan Agriculture University, Changsha, China
| | - Rejun Fang
- Department of Animal Science, Hunan Agriculture University, Changsha, China
| | - Chongyong Li
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Tiejun Li
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Yulong Yin
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- School of Life Sciences, Hunan Normal University, Changsha, China
| | - Yongqing Hou
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, China
| | - Sung Woo Kim
- Department of Animal Science, North Carolina State University, Raleigh, NC, USA
| | - Guoyao Wu
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, China
- Department of Animal Science, Texas A&M University, College Station, TX, USA
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246
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Stearoyl-CoA Desaturase-1: Is It the Link between Sulfur Amino Acids and Lipid Metabolism? BIOLOGY 2015; 4:383-96. [PMID: 26046927 PMCID: PMC4498306 DOI: 10.3390/biology4020383] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 05/02/2015] [Accepted: 05/14/2015] [Indexed: 12/11/2022]
Abstract
An association between sulfur amino acids (methionine, cysteine, homocysteine and taurine) and lipid metabolism has been described in several experimental and population-based studies. Changes in the metabolism of these amino acids influence serum lipoprotein concentrations, although the underlying mechanisms are still poorly understood. However, recent evidence has suggested that the enzyme stearoyl-CoA desaturase-1 (SCD-1) may be the link between these two metabolic pathways. SCD-1 is a key enzyme for the synthesis of monounsaturated fatty acids. Its main substrates C16:0 and C18:0 and products palmitoleic acid (C16:1) and oleic acid (C18:1) are the most abundant fatty acids in triglycerides, cholesterol esters and membrane phospholipids. A significant suppression of SCD-1 has been observed in several animal models with disrupted sulfur amino acid metabolism, and the activity of SCD-1 is also associated with the levels of these amino acids in humans. This enzyme also appears to be involved in the etiology of metabolic syndromes because its suppression results in decreased fat deposits (regardless of food intake), improved insulin sensitivity and higher basal energy expenditure. Interestingly, this anti-obesogenic phenotype has also been described in humans and animals with sulfur amino acid disorders, which is consistent with the hypothesis that SCD-1 activity is influenced by these amino acids, in particularly cysteine, which is a strong and independent predictor of SCD-1 activity and fat storage. In this narrative review, we discuss the evidence linking sulfur amino acids, SCD-1 and lipid metabolism.
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247
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Islam KN, Polhemus DJ, Donnarumma E, Brewster LP, Lefer DJ. Hydrogen Sulfide Levels and Nuclear Factor-Erythroid 2-Related Factor 2 (NRF2) Activity Are Attenuated in the Setting of Critical Limb Ischemia (CLI). J Am Heart Assoc 2015; 4:JAHA.115.001986. [PMID: 25977470 PMCID: PMC4599428 DOI: 10.1161/jaha.115.001986] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Background Cystathionine γ-lyase, cystathionine β-synthase, and 3-mercaptopyruvate sulfurtransferase are endogenous enzymatic sources of hydrogen sulfide (H2S). Functions of H2S are mediated by several targets including ion channels and signaling proteins. Nuclear factor-erythroid 2-related factor 2 is responsible for the expression of antioxidant response element–regulated genes and is known to be upregulated by H2S. We examined the levels of H2S, H2S-producing enzymes, and nuclear factor-erythroid 2-related factor 2 activation status in skeletal muscle obtained from critical limb ischemia (CLI) patients. Methods and Results Gastrocnemius tissues were attained postamputation from human CLI and healthy control patients. We found mRNA and protein levels of cystathionine γ-lyase, cystathionine β-synthase, and 3-mercaptopyruvate sulfurtransferase were significantly decreased in skeletal muscle of CLI patients as compared to control. H2S and sulfane sulfur levels were significantly decreased in skeletal muscle of CLI patients. We also observed significant reductions in nuclear factor-erythroid 2-related factor 2 activation as well as antioxidant proteins, such as Cu, Zn-superoxide dismutase, catalase, and glutathione peroxidase in skeletal muscle of CLI patients. Biomarkers of oxidative stress, such as malondialdehyde and protein carbonyl formation, were significantly increased in skeletal muscle of CLI patients as compared to healthy controls. Conclusions The data demonstrate that H2S bioavailability and nuclear factor-erythroid 2-related factor 2 activation are both attenuated in CLI tissues concomitant with significantly increased oxidative stress. Reductions in the activity of H2S-producing enzymes may contribute to the pathogenesis of CLI.
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Affiliation(s)
- Kazi N Islam
- Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA (K.N.I., D.J.P., E.D., D.J.L.)
| | - David J Polhemus
- Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA (K.N.I., D.J.P., E.D., D.J.L.)
| | - Erminia Donnarumma
- Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA (K.N.I., D.J.P., E.D., D.J.L.)
| | | | - David J Lefer
- Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA (K.N.I., D.J.P., E.D., D.J.L.)
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248
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Blaesi EJ, Fox BG, Brunold TC. Spectroscopic and Computational Investigation of the H155A Variant of Cysteine Dioxygenase: Geometric and Electronic Consequences of a Third-Sphere Amino Acid Substitution. Biochemistry 2015; 54:2874-84. [PMID: 25897562 DOI: 10.1021/acs.biochem.5b00171] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cysteine dioxygenase (CDO) is a mononuclear, non-heme iron(II)-dependent enzyme that utilizes molecular oxygen to catalyze the oxidation of l-cysteine (Cys) to cysteinesulfinic acid. Although the kinetic consequences of various outer-sphere amino acid substitutions have previously been assessed, the effects of these substitutions on the geometric and electronic structures of the active site remained largely unexplored. In this work, we have performed a spectroscopic and computational characterization of the H155A CDO variant, which was previously shown to display a rate of Cys oxidation ∼100-fold decreased relative to that of wild-type (WT) CDO. Magnetic circular dichroism and electron paramagnetic resonance spectroscopic data indicate that the His155 → Ala substitution has a significant effect on the electronic structure of the Cys-bound Fe(II)CDO active site. An analysis of these data within the framework of density functional theory calculations reveals that Cys-bound H155A Fe(II)CDO possesses a six-coordinate Fe(II) center, differing from the analogous WT CDO species in the presence of an additional water ligand. The enhanced affinity of the Cys-bound Fe(II) center for a sixth ligand in the H155A CDO variant likely stems from the increased level of conformational freedom of the cysteine-tyrosine cross-link in the absence of the H155 imidazole ring. Notably, the nitrosyl adduct of Cys-bound Fe(II)CDO [which mimics the (O2/Cys)-CDO intermediate] is essentially unaffected by the H155A substitution, suggesting that the primary role played by the H155 side chain in CDO catalysis is to discourage the binding of a water molecule to the Cys-bound Fe(II)CDO active site.
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Affiliation(s)
- Elizabeth J Blaesi
- †Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Brian G Fox
- ‡Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Thomas C Brunold
- †Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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249
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Epigenetic regulation of the novel tumor suppressor cysteine dioxygenase 1 in esophageal squamous cell carcinoma. Tumour Biol 2015; 36:7449-56. [PMID: 25903467 DOI: 10.1007/s13277-015-3443-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Accepted: 04/08/2015] [Indexed: 01/10/2023] Open
Abstract
Esophageal squamous cell carcinoma (ESCC), the most common subtype of esophageal cancer in East Asian countries, is still associated with a poor prognosis because of the high frequency of lymph node metastasis and invasion. In our previous study, we identified a novel methylation gene, cysteine dioxygenase 1 (CDO1) that is involved in the conversion of cysteine to cysteine sulfinate, and plays a key role in taurine biosynthesis. Decreased expression of CDO1 was observed in ESCC cell lines and tumors derived from patient tissues, and CDO1 silencing could be reversed by treatment with 5-aza-2'-deoxycytidine in six ESCC cell lines. Forced expression of CDO1 in three different ESCC cell lines, TE-4, TE-6, and TE-14, significantly decreased tumor cell growth, cell migration, invasion, and the ability of colony formation. Although CDO1 expression was not found to significantly correlate with survival in ESCC patients, our results suggest that methylation-regulated CDO1 may represent a functional tumor suppressor and a potentially valuable diagnostic biomarker for ESCC.
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250
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Chan SJ, Chai C, Lim TW, Yamamoto M, Lo EH, Lai MKP, Wong PTH. Cystathionine β-synthase inhibition is a potential therapeutic approach to treatment of ischemic injury. ASN Neuro 2015; 7:7/2/1759091415578711. [PMID: 25873304 PMCID: PMC4397212 DOI: 10.1177/1759091415578711] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Hydrogen sulfide (H2S) has been reported to exacerbate stroke outcome in experimental models. Cystathionine β-synthase (CBS) has been implicated as the predominant H2S-producing enzyme in central nervous system. When SH-SY5Y cells were transfected to overexpress CBS, these cells were able to synthesize H2S when exposed to high levels of enzyme substrates but not substrate concentrations that may reflect normal physiological conditions. At the same time, these cells demonstrated exacerbated cell death when subjected to oxygen and glucose deprivation (OGD) together with high substrate concentrations, indicating that H2S production has a detrimental effect on cell survival. This effect could be abolished by CBS inhibition. The same effect was observed with primary astrocytes exposed to OGD and high substrates or sodium hydrosulfide. In addition, CBS was upregulated and activated by truncation in primary astrocytes subjected to OGD. When rats were subjected to permanent middle cerebral artery occlusion, CBS activation was also observed. These results imply that in acute ischemic conditions, CBS is upregulated and activated by truncation causing an increased production of H2S, which exacerbate the ischemic injuries. Therefore, CBS inhibition may be a viable approach to stroke treatment.
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Affiliation(s)
- Su Jing Chan
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore
| | - Chou Chai
- Duke-NUS Graduate Medical School, Singapore
| | - Tze Wei Lim
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore
| | - Mie Yamamoto
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore
| | - Eng H Lo
- Departments of Radiology and Neurology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Mitchell Kim Peng Lai
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore
| | - Peter Tsun Hon Wong
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore
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