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Cui G, Sun F, Gao X, Xie K, Zhang C, Liu S, Xi Y. Proteomic analysis of melatonin-mediated osmotic tolerance by improving energy metabolism and autophagy in wheat (Triticum aestivum L.). PLANTA 2018; 248:69-87. [PMID: 29564630 DOI: 10.1007/s00425-018-2881-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 03/17/2018] [Indexed: 05/03/2023]
Abstract
Melatonin-mediated osmotic tolerance was attributed to increased antioxidant capacity, energy metabolism, osmoregulation and autophagy in wheat (Triticum aestivum L.). Melatonin is known to play multiple roles in plant abiotic stress tolerance. However, its role in wheat has been rarely investigated. In this study, 25% polyethylene glycol 6000 (PEG 6000) was used to simulate osmotic stress, and wheat seeds and seedlings were treated with different concentrations of melatonin under PEG stress. Isobaric tag for relative and absolute quantification (iTRAQ)-based proteomic techniques were used to identify the differentially accumulated proteins from melatonin-treated and non-treated seedlings. Seeding priming with melatonin significantly increased the germination rate, coleoptile length, and primary root number of wheat under PEG stress, as well as the fresh weight, dry weight, and water content of wheat seedlings. Under PEG stress, melatonin significantly improved reactive oxygen species homeostasis, as revealed by lower H2O2 and O 2· content; and the expression of antioxidant enzymes at the transcription and translation levels was increased. Melatonin maintained seedling growth by improving photosynthetic rates and instantaneous and intrinsic water use efficiencies, as well as carbon fixation and starch synthesis at the protein level. Melatonin treatment significantly affected the expression of glycolytic proteins, including fructose-1,6-bisphosphate aldolase, hexokinase, glyceraldehyde-3-phosphate dehydrogenase, and enolase, and remarkably increased the expression of the nicotinamide adenine dinucleotide transporter and nicotinamide adenine dinucleotide binding protein, thereby indirectly modulating electron transport in the respiratory chain. This indicated that melatonin improved energy production in PEG-stressed seedlings. Further, melatonin played a regulatory role in autophagy, protease expression, and ubiquitin-mediated protein degradation by significantly upregulating rab-related protein, fused signal recognition particle receptor, aspartyl protease, serine protease, ubiquitin-fold modifier 1, and ubiquitin at the mRNA or protein level. These findings suggested that melatonin might activate a metabolic cascade related to autophagy under PEG stress in wheat seedlings.
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Affiliation(s)
- Guibin Cui
- College of Agronomy, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Wheat Biology and Genetic Improvement on Northwestern China, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Fengli Sun
- College of Agronomy, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Wheat Biology and Genetic Improvement on Northwestern China, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xinmei Gao
- College of Agronomy, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Wheat Biology and Genetic Improvement on Northwestern China, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Kunliang Xie
- College of Agronomy, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Wheat Biology and Genetic Improvement on Northwestern China, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Chao Zhang
- College of Agronomy, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Wheat Biology and Genetic Improvement on Northwestern China, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Shudong Liu
- College of Agronomy, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Wheat Biology and Genetic Improvement on Northwestern China, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yajun Xi
- College of Agronomy, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Wheat Biology and Genetic Improvement on Northwestern China, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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Oxidative stress inactivates ecto-5'-nucleotidase by inhibiting protein kinase C in rat hearts in vivo. Eur J Pharmacol 2017; 805:125-130. [DOI: 10.1016/j.ejphar.2017.02.019] [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] [Revised: 01/30/2017] [Accepted: 02/13/2017] [Indexed: 12/25/2022]
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3
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Jia Y, Li P, Song W, Zhao G, Zheng D, Li D, Wang Y, Wang J, Li C, Han K. Rational Design of a Profluorescent Substrate for S-adenosylhomocysteine Hydrolase and its Applications in Bioimaging and Inhibitor Screening. ACS APPLIED MATERIALS & INTERFACES 2016; 8:25818-25824. [PMID: 27626909 DOI: 10.1021/acsami.6b09190] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
S-Adenosylhomocysteine hydrolase (SAHase) is a cellular enzyme that plays a key role in the methylation process, and a potential drug target in the discovery of antiviral and anticancer agents. There is increasing interest in determining its activity in the biological and clinical fields with chemosensors but with limited success so far. Herein, we designed and developed for the first time an off/on-type of fluorogenic substrate (NADE) that is directly responsive to SAHase activity. NADE used 1,8-naphthalimide as the signal reporter and adenosine (Ade) as the reaction center; removal of the Ade moiety enhanced the fluorescence by >10-fold. Kinetic study showed that NADE followed a non-Michaelis-Menten pattern that corresponded to the allosteric behavior of SAHase. NADE showed excellent selectivity and functioned efficiently in cells, allowing the microscopic imaging of SAHase activity. NADE can also be used to identify and measure the effectiveness of inhibitors in a markedly superior way. In a word, NADE would be broadly useful in clinical applications and academic studies.
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Affiliation(s)
- Yan Jia
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS) , 457 Zhongshan Road, Dalian 116023, P. R. China
- Graduate School of the Chinese Academy of Sciences , Beijing, P. R. China
| | - Peng Li
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS) , 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Wei Song
- The First Affiliated Hospital of Dalian Medical University , Dalian 116023, P. R. China
| | - Guangjiu Zhao
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS) , 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Daoyuan Zheng
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS) , 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Dongmei Li
- College of Pharmacy, Nankai University , Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China
| | - Yanni Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS) , 457 Zhongshan Road, Dalian 116023, P. R. China
- Graduate School of the Chinese Academy of Sciences , Beijing, P. R. China
| | - Jiayue Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS) , 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Chunyan Li
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS) , 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Keli Han
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences (CAS) , 457 Zhongshan Road, Dalian 116023, P. R. China
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Zhang H, Ni Z, Chen Q, Guo Z, Gao W, Su X, Qu Y. Proteomic responses of drought-tolerant and drought-sensitive cotton varieties to drought stress. Mol Genet Genomics 2016; 291:1293-303. [PMID: 26941218 DOI: 10.1007/s00438-016-1188-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 02/24/2016] [Indexed: 12/27/2022]
Abstract
Drought, one of the most widespread factors reducing agricultural crop productivity, affects biological processes such as development, architecture, flowering and senescence. Although protein analysis techniques and genome sequencing have made facilitated the proteomic study of cotton, information on genetic differences associated with proteomic changes in response to drought between different cotton genotypes is lacking. To determine the effects of drought stress on cotton seedlings, we used two-dimensional polyacrylamide gel electrophoresis (2-DE) and matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry to comparatively analyze proteome of drought-responsive proteins during the seedling stage in two cotton (Gossypium hirsutum L.) cultivars, drought-tolerant KK1543 and drought-sensitive Xinluzao26. A total of 110 protein spots were detected on 2-DE maps, of which 56 were identified by MALDI-TOF and MALDI-TOF/TOF mass spectrometry. The identified proteins were mainly associated with metabolism (46.4 %), antioxidants (14.2 %), and transport and cellular structure (23.2 %). Some key proteins had significantly different expression patterns between the two genotypes. In particular, 5-methyltetrahydropteroyltriglutamate-homocysteine methyltransferase, UDP-D-glucose pyrophosphorylase and ascorbate peroxidase were up-regulated in KK1543 compared with Xinluzao26. Under drought stress conditions, the vacuolar H(+)-ATPase catalytic subunit, a 14-3-3g protein, translation initiation factor 5A and pathogenesis-related protein 10 were up-regulated in KK1543, whereas ribosomal protein S12, actin, cytosolic copper/zinc superoxide dismutase, protein disulfide isomerase, S-adenosylmethionine synthase and cysteine synthase were down-regulated in Xinluzao26. This work represents the first characterization of proteomic changes that occur in response to drought in roots of cotton plants. These differentially expressed proteins may be related to biochemical pathways responsible for drought tolerance in KK1543. Although further studies are needed, this proteomic analysis underlines the role of post-translational events. The differentially expressed proteins and their corresponding genes may be used as markers for the breeding of drought tolerance in cotton.
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Affiliation(s)
- Haiyan Zhang
- College of Agronomy, Xinjiang Agricultural University, Urumqi, 830052, China
| | - Zhiyong Ni
- College of Agronomy, Xinjiang Agricultural University, Urumqi, 830052, China
| | - Quanjia Chen
- College of Agronomy, Xinjiang Agricultural University, Urumqi, 830052, China
| | - Zhongjun Guo
- College of Agronomy, Xinjiang Agricultural University, Urumqi, 830052, China
| | - Wenwei Gao
- College of Agronomy, Xinjiang Agricultural University, Urumqi, 830052, China
| | - Xiujuan Su
- College of Agronomy, Xinjiang Agricultural University, Urumqi, 830052, China
| | - Yanying Qu
- College of Agronomy, Xinjiang Agricultural University, Urumqi, 830052, China.
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Palanichamy K, Thirumoorthy K, Kanji S, Gordon N, Singh R, Jacob JR, Sebastian N, Litzenberg KT, Patel D, Bassett E, Ramasubramanian B, Lautenschlaeger T, Fischer SM, Ray-Chaudhury A, Chakravarti A. Methionine and Kynurenine Activate Oncogenic Kinases in Glioblastoma, and Methionine Deprivation Compromises Proliferation. Clin Cancer Res 2016; 22:3513-23. [PMID: 26936918 DOI: 10.1158/1078-0432.ccr-15-2308] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 02/16/2016] [Indexed: 12/27/2022]
Abstract
PURPOSE We employed a metabolomics-based approach with the goal to better understand the molecular signatures of glioblastoma cells and tissues, with an aim toward identifying potential targetable biomarkers for developing more effective and novel therapies. EXPERIMENTAL DESIGN We used liquid chromatography coupled with mass spectrometry (LC-MS/Q-TOF and LC-MS/QQQ) for the discovery and validation of metabolites from primary and established glioblastoma cells, glioblastoma tissues, and normal human astrocytes. RESULTS We identified tryptophan, methionine, kynurenine, and 5-methylthioadenosine as differentially regulated metabolites (DRM) in glioblastoma cells compared with normal human astrocytes (NHAs). Unlike NHAs, glioblastoma cells depend on dietary methionine for proliferation, colony formation, survival, and to maintain a deregulated methylome (SAM:SAH ratio). In methylthioadenosine phosphorylase (MTAP)-deficient glioblastoma cells, expression of MTAP transgene did not alter methionine dependency, but compromised tumor growth in vivo We discovered that a lack of the kynurenine-metabolizing enzymes kynurenine monooxygenase and/or kynureninase promotes the accumulation of kynurenine, which triggers immune evasion in glioblastoma cells. In silico analysis of the identified DRMs mapped the activation of key oncogenic kinases that promotes tumorigenesis in glioblastoma. We validated this result by demonstrating that the exogenous addition of DRMs to glioblastoma cells in vitro results in oncogene activation as well as the simultaneous downregulation of Ser/Thr phosphatase PP2A. CONCLUSIONS We have connected a four-metabolite signature, implicated in the methionine and kynurenine pathways, to the promotion and maintenance of glioblastoma. Together, our data suggest that these metabolites and their respective metabolic pathways serve as potential therapeutic targets for glioblastoma. Clin Cancer Res; 22(14); 3513-23. ©2016 AACR.
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Affiliation(s)
- Kamalakannan Palanichamy
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio.
| | - Krishnan Thirumoorthy
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio. Environmental Analytical Chemistry Division, School of Advanced Sciences, VIT University, Vellore, India
| | - Suman Kanji
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Nicolaus Gordon
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Rajbir Singh
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - John R Jacob
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Nikhil Sebastian
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Kevin T Litzenberg
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Disha Patel
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Emily Bassett
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Brinda Ramasubramanian
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Tim Lautenschlaeger
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
| | - Steven M Fischer
- Segment Marketing/Life Science Research, Agilent Technologies, Santa Clara, California
| | - Abhik Ray-Chaudhury
- Neuropathology Unit, Surgical Neurology Branch/NINDS, NIH, Bethesda, Maryland
| | - Arnab Chakravarti
- Department of Radiation Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University College of Medicine and Comprehensive Cancer Center, Columbus, Ohio
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Park SJ, Kong HK, Kim YS, Lee YS, Park JH. Inhibition of S-adenosylhomocysteine hydrolase decreases cell mobility and cell proliferation through cell cycle arrest. Am J Cancer Res 2015; 5:2127-2138. [PMID: 26328244 PMCID: PMC4548325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 06/11/2015] [Indexed: 06/04/2023] Open
Abstract
S-adenosylhomocysteine hydrolase (AHCY) hydrolyzes S-adenosylhomocysteine to adenosine and l-homocysteine, and it is already known that inhibition of AHCY decreased cell proliferation by G2/M arrest in MCF7 cells. However, the previous study has not indicated what mechanism the cell cycle arrest is induced by. In this study, we aimed to investigate the different cell cycle mechanisms in both p53 wild-typed MCF7 and p53 mutant-typed MCF7-ADR by suppressing AHCY. We extensively proved that AHCY knockdown has an anti-proliferative effect by using the WST-1 assay, BrdU assay, and cell cytometry analysis and an anti-invasive, migration effect by wound-healing assay and trans-well analysis. Our study showed that down-regulation of AHCY effectively suppressed cell proliferation by regulating the MEK/ERK signaling pathway and through cell cycle arrests. The cell cycle arrest occurred at the G2/M checkpoint by inhibiting degradation of cyclinB1 and phosphorylation of CDC2 in MCF7 cells and at the G1 phase by inhibiting cyclinD1 and CDK6 in MCF7-ADR cells. Finally, we determined that AHCY regulates the expression of ATM kinase that phosphorylates p53 and affects to arrest of G2/M phase in MCF7 cells. The findings of this study significantly suggest that AHCY is an important regulator of cell proliferation through different mechanism in between MCF7 and MCF7-ADR cells as p53 status.
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Affiliation(s)
- Sae Jeong Park
- Department of Biological Science, Sookmyung Women's University Seoul, Korea
| | - Hyun Kyung Kong
- Department of Biological Science, Sookmyung Women's University Seoul, Korea
| | - Ye Sol Kim
- Department of Biological Science, Sookmyung Women's University Seoul, Korea
| | - Yeon Seon Lee
- Department of Biological Science, Sookmyung Women's University Seoul, Korea
| | - Jong Hoon Park
- Department of Biological Science, Sookmyung Women's University Seoul, Korea
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Zhou XX, Yang LT, Qi YP, Guo P, Chen LS. Mechanisms on boron-induced alleviation of aluminum-toxicity in Citrus grandis seedlings at a transcriptional level revealed by cDNA-AFLP analysis. PLoS One 2015; 10:e0115485. [PMID: 25747450 PMCID: PMC4352013 DOI: 10.1371/journal.pone.0115485] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 11/24/2014] [Indexed: 11/18/2022] Open
Abstract
The physiological and biochemical mechanisms on boron (B)-induced alleviation of aluminum (B)-toxicity in plants have been examined in some details, but our understanding of the molecular mechanisms underlying these processes is very limited. In this study, we first used the cDNA-AFLP to investigate the gene expression patterns in Citrus grandis roots responsive to B and Al interactions, and isolated 100 differentially expressed genes. Results showed that genes related to detoxification of reactive oxygen species (ROS) and aldehydes (i.e., glutathione S-transferase zeta class-like isoform X1, thioredoxin M-type 4, and 2-alkenal reductase (NADP+-dependent)-like), metabolism (i.e., carboxylesterases and lecithin-cholesterol acyltransferase-like 4-like, nicotianamine aminotransferase A-like isoform X3, thiosulfate sulfurtransferase 18-like isoform X1, and FNR, root isozyme 2), cell transport (i.e., non-specific lipid-transfer protein-like protein At2g13820-like and major facilitator superfamily protein), Ca signal and hormone (i.e., calcium-binding protein CML19-like and IAA-amino acid hydrolase ILR1-like 4-like), gene regulation (i.e., Gag-pol polyprotein) and cell wall modification (i.e., glycosyl hydrolase family 10 protein) might play a role in B-induced alleviation of Al-toxicity. Our results are useful not only for our understanding of molecular processes associated with B-induced alleviation of Al-toxicity, but also for obtaining key molecular genes to enhance Al-tolerance of plants in the future.
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Affiliation(s)
- Xin-Xing Zhou
- College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Horticultural Plant Physiology, Biochemistry and Molecular Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Lin-Tong Yang
- College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Horticultural Plant Physiology, Biochemistry and Molecular Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yi-Ping Qi
- Institute of Materia Medica, Fujian Academy of Medical Sciences, Fuzhou 350001, China
| | - Peng Guo
- College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Horticultural Plant Physiology, Biochemistry and Molecular Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Li-Song Chen
- College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Horticultural Plant Physiology, Biochemistry and Molecular Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- The Higher Educational Key Laboratory of Fujian Province for Soil Ecosystem Health and Regulation, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Fujian Key Laboratory for Plant Molecular and Cell Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- * E-mail:
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Reynoso-Ducoing O, Valverde-Islas L, Paredes-Salomon C, Pérez-Reyes A, Landa A, Robert L, Mendoza G, Ambrosio JR. Analysis of the expression of cytoskeletal proteins of Taenia crassiceps ORF strain cysticerci (Cestoda). Parasitol Res 2014; 113:1955-69. [DOI: 10.1007/s00436-014-3846-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 02/27/2014] [Indexed: 12/01/2022]
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Jiang H, Li F, Zhang J, Zhang J, Huang B, Yu Y, Xiang J. Comparison of protein expression profiles of the hepatopancreas in Fenneropenaeus chinensis challenged with heat-inactivated Vibrio anguillarum and white spot syndrome virus. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2014; 16:111-123. [PMID: 24057166 DOI: 10.1007/s10126-013-9538-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Accepted: 07/15/2013] [Indexed: 06/02/2023]
Abstract
Fenneropenaeus chinensis (Chinese shrimp) culture industry, like other Penaeidae culture, has been seriously affected by the shrimp diseases caused by bacteria and virus. To better understand the mechanism of immune response of shrimp to different pathogens, proteome research approach was utilized in this study. Firstly, the soluble hepatopancreas protein samples in adult Chinese shrimp among control, heat-inactivated Vibrio-challenged and white spot syndrome virus-infected groups were separated by 2-DE (pH range, 4-7; sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and pH range, 3-10; tricine-SDS-PAGE). Then the differentially expressed protein spots (≥1.5-fold or ≤0.67-fold averagely of controls) were analyzed by LC-ESI-MS/MS. Using Mascot online database searching algorithm and SEQUEST searching program, 48 and 49 differentially expressed protein spots were successfully identified in response to Vibrio and white spot syndrome virus infection, respectively. Based on these results, we discussed the mechanism of immune response of the shrimp and shed light on the differences between immune response of shrimp toward Vibrio and white spot syndrome virus. This study also set a basis for further analyses of some key genes in immune response of Chinese shrimp.
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Affiliation(s)
- Hao Jiang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
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Vermillion KL, Lidberg KA, Gammill LS. Cytoplasmic protein methylation is essential for neural crest migration. ACTA ACUST UNITED AC 2013; 204:95-109. [PMID: 24379414 PMCID: PMC3882789 DOI: 10.1083/jcb.201306071] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Post-translational methylation of the non-histone, actin-binding protein EF1α1 is essential for neural crest migration. As they initiate migration in vertebrate embryos, neural crest cells are enriched for methylation cycle enzymes, including S-adenosylhomocysteine hydrolase (SAHH), the only known enzyme to hydrolyze the feedback inhibitor of trans-methylation reactions. The importance of methylation in neural crest migration is unknown. Here, we show that SAHH is required for emigration of polarized neural crest cells, indicating that methylation is essential for neural crest migration. Although nuclear histone methylation regulates neural crest gene expression, SAHH and lysine-methylated proteins are abundant in the cytoplasm of migratory neural crest cells. Proteomic profiling of cytoplasmic, lysine-methylated proteins from migratory neural crest cells identified 182 proteins, several of which are cytoskeleton related. A methylation-resistant form of one of these proteins, the actin-binding protein elongation factor 1 alpha 1 (EF1α1), blocks neural crest migration. Altogether, these data reveal a novel and essential role for post-translational nonhistone protein methylation during neural crest migration and define a previously unknown requirement for EF1α1 methylation in migration.
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Affiliation(s)
- Katie L Vermillion
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455
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11
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Wang J, Jiang Y, Yang A, Sun W, Ma C, Ma S, Gong H, Shi Y, Wei J. Hyperhomocysteinemia-Induced Monocyte Chemoattractant Protein-1 Promoter DNA Methylation by Nuclear Factor-κB/DNA Methyltransferase 1 in Apolipoprotein E-Deficient Mice. Biores Open Access 2013; 2:118-27. [PMID: 23593564 PMCID: PMC3620495 DOI: 10.1089/biores.2012.0300] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Hyperhomocysteinemia is considered to be a significant risk factor in atherosclerosis and plays an important role in it. The purpose of this study was to determine the molecular mechanism of blood monocyte chemoattractant protein-1 (MCP-1) promoter DNA hypomethylation in the formation of atherosclerosis induced by hyperhomocysteinemia, and to explore the effect of nuclear factor-κB (NF-κB)/DNA methyltransferase 1 (DNMT1) in this mechanism. The atherosclerotic effect of MCP-1 in apolipoprotein E–deficient (ApoE−/−) and wild-type C57BL/6J mice was evaluated using atherosclerotic lesion area; serum NF-κB, MCP-1, and DNMT1 levels; and MCP-1 promoter DNA methylation expression. In vitro, the mechanism responsible for the effect of NF-κB/DNMT1 on foam cells was investigated by measuring NF-κB and DNMT1 levels to determine whether NF-κB/DNMT1 had an effect on gene expression. Compared with the control group, atherosclerotic lesions in ApoE−/− mice fed a high methionine diet significantly increased, as did the expression of MCP-1. In vitro study showed that pyrrolidine dithiocarbamate treatment down-regulated levels of NF-κB and raised DNMT1 concentrations, confirming the effect of NF-κB/DNMT1 in the MCP-1 promoter DNA methylation process. In conclusion, our results suggest that through NF-κB/DNMT1, MCP-1 promoter DNA hypomethylation may play a key role in formation of atherosclerosis under hyperhomocysteinemia.
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Affiliation(s)
- Ju Wang
- Department of Inspection, Ningxia Medical University , Yinchuan, China
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12
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Wang Z, Wang Z, Shi L, Wang L, Xu F. Proteomic alterations of Brassica napus root in response to boron deficiency. PLANT MOLECULAR BIOLOGY 2010; 74:265-78. [PMID: 20694506 DOI: 10.1007/s11103-010-9671-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2010] [Accepted: 07/26/2010] [Indexed: 05/02/2023]
Abstract
Boron (B) deficiency is a worldwide problem, and Brassica napus is one of the most sensitive crops to B deficiency. To better understand the B starvation response of Brassica napus, we conducted a comparative proteomic analysis of seedling stage Brassica napus root between B-sufficient and B-limited conditions: 45 differentially expressed proteins were successfully identified by 2-DE coupled with MALDI-TOF/TOF-MS and LTQ-ESI-MS/MS analysis. Among these proteins, 10 were down-regulated and 35 were up-regulated under B-limited condition. Combining GO and KEGG analyses with data from previous reports, proteins were categorized into several functional groups, including antioxidant and detoxification, defense-related proteins, signaling and regulation, carbohydrate and energy metabolism, amino acid and fatty acid metabolism, protein translation and degradation, cell wall structure, and transporter. The genes of selected proteins were analyzed by quantitative RT-PCR. Our results provide novel information for better understanding the physiological and biochemical responses to B deficiency in plants.
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Affiliation(s)
- Zhifang Wang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, 430070 Wuhan, China
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Guo S, Bao S. srGAP2 arginine methylation regulates cell migration and cell spreading through promoting dimerization. J Biol Chem 2010; 285:35133-41. [PMID: 20810653 DOI: 10.1074/jbc.m110.153429] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The Slit-Robo GTPase-activating proteins (srGAPs) are critical for neuronal migration through inactivation of Rho GTPases Cdc42, Rac1, and RhoA. Here we report that srGAP2 physically interacts with protein arginine methyltransferase 5 (PRMT5). srGAP2 localizes to the cytoplasm and plasma membrane protrusion. srGAP2 knockdown reduces cell adhesion spreading and increases cell migration, but has no effect on cell proliferation. PRMT5 binds to the N terminus of srGAP2 (225-538 aa) and methylates its C-terminal arginine residue Arg-927. The methylation mutant srGAP2-R927A fails to rescue the cell spreading rate, is unable to localize to the plasma membrane leading edge, and perturbs srGAP2 homodimer formation mediated by the F-BAR domain. These results suggest that srGAP2 arginine methylation plays important roles in cell spreading and cell migration through influencing membrane protrusion.
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Affiliation(s)
- Shaoshi Guo
- Key Laboratory of Molecular and Developmental Biology, Center for Molecular and Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
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14
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Ramírez-Gómez F, Ortiz-Pineda PA, Rivera-Cardona G, García-Arrarás JE. LPS-induced genes in intestinal tissue of the sea cucumber Holothuria glaberrima. PLoS One 2009; 4:e6178. [PMID: 19584914 PMCID: PMC2702171 DOI: 10.1371/journal.pone.0006178] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2009] [Accepted: 06/16/2009] [Indexed: 01/16/2023] Open
Abstract
Metazoan immunity is mainly associated with specialized cells that are directly involved with the immune response. Nevertheless, both in vertebrates and invertebrates other organs might respond to immune activation and participate either directly or indirectly in the ongoing immune process. However, most of what is known about invertebrate immunity has been restricted to immune effector cells and little information is available on the immune responses of other tissues or organs. We now focus on the immune reactions of the intestinal tissue of an echinoderm. Our study employs a non-conventional model, the echinoderm Holothuria glaberrima, to identify intestinal molecules expressed after an immune challenge presented by an intra-coelomic injection of lipopolysaccharides (LPS). The expression profiles of intestinal genes expressed differentially between LPS-injected animals and control sea water-injected animals were determined using a custom-made Agilent microarray with 7209 sea cucumber intestinal ESTs. Fifty (50) unique sequences were found to be differentially expressed in the intestine of LPS-treated sea cucumbers. Seven (7) of these sequences represented homologues of known proteins, while the remaining (43) had no significant similarity with any protein, EST or RNA database. The known sequences corresponded to cytoskeletal proteins (Actin and alpha-actinin), metabolic enzymes (GAPDH, Ahcy and Gnmt), metal ion transport/metabolism (major yolk protein) and defense/recognition (fibrinogen-like protein). The expression pattern of 11 genes was validated using semi-quantitative RT-PCR. Nine of these corroborated the microarray results and the remaining two showed a similar trend but without statistical significance. Our results show some of the molecular events by which the holothurian intestine responds to an immune challenge and provide important information to the study of the evolution of the immune response.
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Affiliation(s)
| | - Pablo A. Ortiz-Pineda
- Department of Biology, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico
| | | | - José E. García-Arrarás
- Department of Biology, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico
- * E-mail:
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15
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Jiang H, Li F, Xie Y, Huang B, Zhang J, Zhang J, Zhang C, Li S, Xiang J. Comparative proteomic profiles of the hepatopancreas in Fenneropenaeus chinensis
response to hypoxic stress. Proteomics 2009; 9:3353-67. [DOI: 10.1002/pmic.200800518] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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16
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Heidenreich DJ, Reedy MV, Brauer PR. Homocysteine enhances cardiac neural crest cell attachment in vitro by increasing intracellular calcium levels. Dev Dyn 2008; 237:2117-28. [PMID: 18651663 DOI: 10.1002/dvdy.21644] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Elevated homocysteine (Hcys) increases the risk of neurocristopathies. Previous studies show Hcys inhibits neural crest (NC) cell migration in vivo. However, the mechanisms responsible for this effect are unknown. Here, we evaluated the effect of Hcys on NC cell attachment in vitro and determined if any of the effects were due to altered Ca2+ signaling. We found Hcys enhanced NC cell attachment in a dose and substrate-dependent manner. Ionomycin mimicked the effect of Hcys while BAPTA-AM and 2-APB blocked the effect of Hcys on NC attachment. In contrast, inhibitors of plasma membrane Ca2+ channels had no effect on NC attachment. Hcys also increased the emission of the intracellular Ca2+-sensitive probe, Fluo-4. These results show Hcys alters NC attachment by triggering an increase in intracellular Ca2+ possibly by generating inositol triphosphate. Hence, the teratogenic effect ascribed to Hcys may be due to perturbation of intracellular Ca2+ signaling.
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Affiliation(s)
- David J Heidenreich
- Department of Biomedical Sciences, Creighton University, Omaha, Nebraska 68178, USA
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Leal J, Ferrer I, Blanco-Aparicio C, Hernández-Losa J, Ramón y Cajal S, Carnero A, LLeonart M. S-adenosylhomocysteine hydrolase downregulation contributes to tumorigenesis. Carcinogenesis 2008; 29:2089-95. [DOI: 10.1093/carcin/bgn198] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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SHE YB. Cloning, Expression, and Mapping of S-adenosyl-L-homocysteine Hydrolase (<I>GhSAHH</I>) cDNA in Cotton. ACTA AGRONOMICA SINICA 2008; 34:958-964. [DOI: 10.3724/sp.j.1006.2008.00958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Kanakry CG, Li Z, Nakai Y, Sei Y, Weinberger DR. Neuregulin-1 regulates cell adhesion via an ErbB2/phosphoinositide-3 kinase/Akt-dependent pathway: potential implications for schizophrenia and cancer. PLoS One 2007; 2:e1369. [PMID: 18159252 PMCID: PMC2147048 DOI: 10.1371/journal.pone.0001369] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2007] [Accepted: 12/05/2007] [Indexed: 12/19/2022] Open
Abstract
Background Neuregulin-1 (NRG1) is a putative schizophrenia susceptibility gene involved extensively in central nervous system development as well as cancer invasion and metastasis. Using a B lymphoblast cell model, we previously demonstrated impairment in NRG1α-mediated migration in cells derived from patients with schizophrenia as well as effects of risk alleles in NRG1 and catechol-O-methyltransferase (COMT), a second gene implicated both in schizophrenia susceptibility and in cancer. Methodology/Principal Findings Here, we examine cell adhesion, an essential component process of cell motility, using an integrin-mediated cell adhesion assay based on an interaction between ICAM-1 and the CD11a/CD18 integrin heterodimer expressed on lymphoblasts. In our assay, NRG1α induces lymphoblasts to assume varying levels of adhesion characterized by time-dependent fluctuations in the firmness of attachment. The maximum range of variation in adhesion over sixty minutes correlates strongly with NRG1α-induced migration (r2 = 0.61). NRG1α-induced adhesion variation is blocked by erbB2, PI3K, and Akt inhibitors, but not by PLC, ROCK, MLCK, or MEK inhibitors, implicating the erbB2/PI3K/Akt1 signaling pathway in NRG1-stimulated, integrin-mediated cell adhesion. In cell lines from 20 patients with schizophrenia and 20 normal controls, cells from patients show a significant deficiency in the range of NRG1α-induced adhesion (p = 0.0002). In contrast, the response of patient-derived cells to phorbol myristate acetate is unimpaired. The COMT Val108/158Met genotype demonstrates a strong trend towards predicting the range of the NRG1α-induced adhesion response with risk homozygotes having decreased variation in cell adhesion even in normal subjects (p = 0.063). Conclusion/Significance Our findings suggest that a mechanism of the NRG1 genetic association with schizophrenia may involve the molecular biology of cell adhesion.
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Affiliation(s)
- Christopher G. Kanakry
- Genes, Cognition and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health (NIH), Bethesda, Maryland, United States of America
- Howard Hughes Medical Institute (HHMI)–National Institutes of Health (NIH) Research Scholars Program, Chevy Chase, Maryland, United States of America
| | - Zhen Li
- Genes, Cognition and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health (NIH), Bethesda, Maryland, United States of America
| | - Yoko Nakai
- Genes, Cognition and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health (NIH), Bethesda, Maryland, United States of America
| | - Yoshitatsu Sei
- Genes, Cognition and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health (NIH), Bethesda, Maryland, United States of America
| | - Daniel R. Weinberger
- Genes, Cognition and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health (NIH), Bethesda, Maryland, United States of America
- * To whom correspondence should be addressed. E-mail:
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