1
|
Proteomic and Bioinformatic Tools to Identify Potential Hub Proteins in the Audiogenic Seizure-Prone Hamster GASH/Sal. Diagnostics (Basel) 2023; 13:diagnostics13061048. [PMID: 36980356 PMCID: PMC10047193 DOI: 10.3390/diagnostics13061048] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 03/12/2023] Open
Abstract
The GASH/Sal (Genetic Audiogenic Seizure Hamster, Salamanca) is a model of audiogenic seizures with the epileptogenic focus localized in the inferior colliculus (IC). The sound-induced seizures exhibit a short latency (7–9 s), which implies innate protein disturbances in the IC as a basis for seizure susceptibility and generation. Here, we aim to study the protein profile in the GASH/Sal IC in comparison to controls. Protein samples from the IC were processed for enzymatic digestion and then analyzed by mass spectrometry in Data-Independent Acquisition mode. After identifying the proteins using the UniProt database, we selected those with differential expression and performed ontological analyses, as well as gene-protein interaction studies using bioinformatics tools. We identified 5254 proteins; among them, 184 were differentially expressed proteins (DEPs), with 126 upregulated and 58 downregulated proteins, and 10 of the DEPs directly related to epilepsy. Moreover, 12 and 7 proteins were uniquely found in the GASH/Sal or the control. The results indicated a protein profile alteration in the epileptogenic nucleus that might underlie the inborn occurring audiogenic seizures in the GASH/Sal model. In summary, this study supports the use of bioinformatics methods in proteomics to delve into the relationship between molecular-level protein mechanisms and the pathobiology of rodent models of audiogenic seizures.
Collapse
|
2
|
de Araújo SS, Aidar FJ, Matos DGD, Santos JLD, Souza LMV, Silva AND, Dos Santos RM, Marçal AC, Mourão DM, Júnior AL, Durães GM, Carneiro ALG, Silva RGD, Teixeira MM, Dos Santos Estevam C. Does Croton Argyrophyllus Extract Has an Effect on Muscle Damage and Lipid Peroxidation in Rats Submitted to High Intensity Strength Exercise? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E4237. [PMID: 31683746 PMCID: PMC6862100 DOI: 10.3390/ijerph16214237] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/11/2019] [Accepted: 10/15/2019] [Indexed: 11/16/2022]
Abstract
Many species of the genus Croton have been used for anti-inflammatory, antiproliferative, antidiabetic, and antitumor purposes. The objective was to evaluate the effect of a hydroethanolic extract (HEE) from the inner bark of Croton argyrophyllus (Euphorbiaceae) on muscle damage and oxidative stress in rats after high intensity exercise. The animals were divided into four groups: (i) the sedentary group (SV; n = 7), (ii) the exercise vehicle group (EV, n = 7), (iii) the sedentary group HEE (SHG; n = 7) composed of sedentary animals and treated with the hydroethanolic extract of C. argyrophyllus (200 mg/kg, v.o.), and (iv) the HEE exercise group (HEE; n = 7) composed of animals submitted to resistance exercise (RE) and treated with the hydroethanolic extract of C. argyrophyllus (200 mg/kg, v.o.). In the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) test, the HEE showed lower values of inhibition potential (IP%) at 39.79% compared to gallic acid, 87.61%, and lipoperoxidation inhibition at 27.4% (100 µg/mL) or 28.6% (200 µg/mL) (p < 0.001). There was inhibition in free radicals in vivo. The HEE of C. argyrophyllus partially reduced the biomarkers of oxidative stress in muscle tissue and muscular damage (creatine kinase (CK) and Lactate Dehydrogenase (LDH)) (p < 0.05) in rats, and in this sense it can be an aid to the recovery process after exhaustive efforts.
Collapse
Affiliation(s)
- Silvan Silva de Araújo
- Post-Graduate Program in Physical Education, Federal University of Sergipe, São Cristóvão SE 49100-000, Brazil.
| | - Felipe José Aidar
- Post-Graduate Program in Physical Education, Federal University of Sergipe, São Cristóvão SE 49100-000, Brazil.
- Post-Graduate Program in Physiological Sciences, Federal University of Sergipe, São Cristóvão SE 49100-000, Brazil.
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports-GEPEPS, Federal University of Sergipe, São Cristovão, Sergipe 49100-000, Brazil.
- Department of Physical Education, Federal University of Sergipe, São Cristóvão, Sergipe 49100-000, Brazil.
- Department of Physiology, Federal University of Sergipe, São Cristóvão, SE 49100-000, Brazil.
| | - Dihogo Gama de Matos
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports-GEPEPS, Federal University of Sergipe, São Cristovão, Sergipe 49100-000, Brazil.
- Institute of Parasitology, McGill University, Montreal, QC H9X 3V9, Canada.
| | - Jymmys Lopes Dos Santos
- Post-Graduate Program in Biotechnology, Northeast Network in Biotechnology (RENORBIO), Federal University of Sergipe, São Cristóvão SE 49100-000, Brazil.
| | - Lúcio Marques Vieira Souza
- Post-Graduate Program in Biotechnology, Northeast Network in Biotechnology (RENORBIO), Federal University of Sergipe, São Cristóvão SE 49100-000, Brazil.
| | - Albená Nunes da Silva
- Exercise's Inflammation and Immunology Laboratory, Sports Center, Federal University of Ouro Preto, Minas Gerais 35400-000, Brazil.
| | - Rodrigo Miguel Dos Santos
- Post-Graduate Program in Physiological Sciences, Federal University of Sergipe, São Cristóvão SE 49100-000, Brazil.
- Department of Circulation and Medical Imaging, St. Olav's Hospital, Norwegian University of Science and Technology (NTNU), Trondheim NO-0508, Norway.
| | - Anderson Carlos Marçal
- Post-Graduate Program in Physical Education, Federal University of Sergipe, São Cristóvão SE 49100-000, Brazil.
| | - Daniella Mota Mourão
- Department of Medical Clinic, State University of Montes Claros, MG 39401-089, Brazil.
| | - Amário Lessa Júnior
- Department of Physical Education, State University of Montes Claros, Montes Claros, MG 39401-089, Brazil.
| | - Geraldo Magela Durães
- Department of Physical Education, State University of Montes Claros, Montes Claros, MG 39401-089, Brazil.
| | - André Luiz Gomes Carneiro
- Department of Physical Education, State University of Montes Claros, Montes Claros, MG 39401-089, Brazil.
| | - Rodrigo Gonçalves da Silva
- Department of Physical Education, University Funorte of Montes Claros, Montes Claros, MG 39401-089, Brazil.
| | - Mauro Martins Teixeira
- Department of Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil.
| | - Charles Dos Santos Estevam
- Department of Physiology, Federal University of Sergipe, São Cristóvão, SE 49100-000, Brazil.
- Post-Graduate Program in Biotechnology, Northeast Network in Biotechnology (RENORBIO), Federal University of Sergipe, São Cristóvão SE 49100-000, Brazil.
| |
Collapse
|
3
|
Zhao M, Jia HH, Liu LZ, Bi XY, Xu M, Yu XJ, He X, Zang WJ. Acetylcholine attenuated TNF-α-induced intracellular Ca 2+ overload by inhibiting the formation of the NCX1-TRPC3-IP3R1 complex in human umbilical vein endothelial cells. J Mol Cell Cardiol 2017; 107:1-12. [PMID: 28395930 DOI: 10.1016/j.yjmcc.2017.04.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/16/2017] [Accepted: 04/06/2017] [Indexed: 12/21/2022]
Abstract
The endoplasmic reticulum (ER) forms discrete junctions with the plasma membrane (PM) that play a critical role in the regulation of Ca2+ signaling during cellular bioenergetics, apoptosis and autophagy. We have previously confirmed that acetylcholine can inhibit ER stress and apoptosis after inflammatory injury. However, limited research has focused on the effects of acetylcholine on ER-PM junctions. In this work, we evaluated the structure and function of the supramolecular sodium-calcium exchanger 1 (NCX1)-transient receptor potential canonical 3 (TRPC3)-inositol 1,4,5-trisphosphate receptor 1 (IP3R1) complex, which is involved in regulating Ca2+ homeostasis during inflammatory injury. The width of the ER-PM junctions of human umbilical vein endothelial cells (HUVECs) was measured in nanometres using transmission electron microscopy and a fluorescent probe for Ca2+. Protein-protein interactions were assessed by immunoprecipitation. Ca2+ concentration was measured using a confocal microscope. An siRNA assay was employed to silence specific proteins. Our results demonstrated that the peripheral ER was translocated to PM junction sites when induced by tumour necrosis factor-alpha (TNF-α) and that NCX1-TRPC3-IP3R1 complexes formed at these sites. After down-regulating the protein expression of NCX1 or IP3R1, we found that the NCX1-mediated inflow of Ca2+ and the release of intracellular Ca2+ stores were reduced in TNF-α-treated cells. We also observed that acetylcholine attenuated the formation of NCX1-TRPC3-IP3R1 complexes and maintained calcium homeostasis in cells treated with TNF-α. Interestingly, the positive effects of acetylcholine were abolished by the selective M3AChR antagonist darifenacin and by AMPK siRNAs. These results indicate that acetylcholine protects endothelial cells from TNF-alpha-induced injury, [Ca2+]cyt overload and ER-PM interactions, which depend on the muscarinic 3 receptor/AMPK pathway, and that acetylcholine may be a new inhibitor for suppressing [Ca2+]cyt overload.
Collapse
Affiliation(s)
- Ming Zhao
- Department of Pharmacology, Xi'an Jiaotong University Health Science Center, Xi'an 710061, PR China
| | - Hang-Huan Jia
- Department of Pharmacology, Xi'an Jiaotong University Health Science Center, Xi'an 710061, PR China
| | - Long-Zhu Liu
- Department of Pharmacology, Xi'an Jiaotong University Health Science Center, Xi'an 710061, PR China
| | - Xue-Yuan Bi
- Department of Pharmacology, Xi'an Jiaotong University Health Science Center, Xi'an 710061, PR China
| | - Man Xu
- Department of Pharmacology, Xi'an Jiaotong University Health Science Center, Xi'an 710061, PR China
| | - Xiao-Jiang Yu
- Department of Pharmacology, Xi'an Jiaotong University Health Science Center, Xi'an 710061, PR China
| | - Xi He
- Department of Pharmacology, Xi'an Jiaotong University Health Science Center, Xi'an 710061, PR China
| | - Wei-Jin Zang
- Department of Pharmacology, Xi'an Jiaotong University Health Science Center, Xi'an 710061, PR China.
| |
Collapse
|
5
|
Fraga D, Aryal M, Hall JE, Rae E, Snider M. Characterization of the arginine kinase isoforms in Caenorhabditis elegans. Comp Biochem Physiol B Biochem Mol Biol 2015; 187:85-101. [PMID: 25981702 DOI: 10.1016/j.cbpb.2015.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 04/23/2015] [Accepted: 05/07/2015] [Indexed: 10/23/2022]
Abstract
Phosphagen kinases (PKs) are well-studied enzymes involved in energy homeostasis in a wide range of animal, protozoan, and even some bacterial species. Recent genome efforts have allowed comparative work on the PKs to extend beyond the biochemistry of individual proteins to the comparative cellular physiology and examining of the role of all PK family members in an organism. The sequencing of the Caenorhabditis elegans genome and availability of sophisticated genetic tools within that system affords the opportunity to conduct a detailed physiological analysis of the PKs from a well known invertebrate for comparison with the extensive work conducted on vertebrate systems. As a first step in this effort we have carried out a detailed molecular genetic and biochemical characterization of the PKs in C. elegans. Our results reveal that C. elegans has five PK genes encoding arginine kinases that range in catalytic efficiency (kcat/KM(Arg)) from (3.1±0.6)×10(4) to (9±4)×10(5) M(-1) s(-1). This range is generally within the range seen for arginine kinases from a variety of species. Our molecular genetic and phylogenetic analysis reveals that the gene family has undergone extensive intron loss and gain within the suborder Rhabditina. In addition, within C. elegans we find evidence of gene duplication and loss. The analysis described here for the C. elegans AKs represents one of the most complete biochemical and molecular genetic analysis of a PK family within a genetically tractable invertebrate system and opens up the possibility of conducting detailed physiological comparisons with vertebrate systems using the sophisticated tools available with this model invertebrate system.
Collapse
Affiliation(s)
- Dean Fraga
- Program in Biochemistry and Molecular Biology, The College of Wooster, Wooster, OH 44691, United States; Department of Biology, The College of Wooster, Wooster, OH 44691, United States.
| | - Manish Aryal
- Program in Biochemistry and Molecular Biology, The College of Wooster, Wooster, OH 44691, United States
| | - Joseph E Hall
- Program in Biochemistry and Molecular Biology, The College of Wooster, Wooster, OH 44691, United States
| | - Evan Rae
- Program in Biochemistry and Molecular Biology, The College of Wooster, Wooster, OH 44691, United States
| | - Mark Snider
- Program in Biochemistry and Molecular Biology, The College of Wooster, Wooster, OH 44691, United States; Department of Chemistry, The College of Wooster, Wooster, OH 44691, United States
| |
Collapse
|
6
|
Liu T, O'Rourke B. Regulation of the Na+/Ca2+ exchanger by pyridine nucleotide redox potential in ventricular myocytes. J Biol Chem 2013; 288:31984-92. [PMID: 24045952 DOI: 10.1074/jbc.m113.496588] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The cardiac Na(+)/Ca(2+) exchanger (NCX) is the major Ca(2+) efflux pathway on the sarcolemma, counterbalancing Ca(2+) influx via L-type Ca(2+) current during excitation-contraction coupling. Altered NCX activity modulates the sarcoplastic reticulum Ca(2+) load and can contribute to abnormal Ca(2+) handling and arrhythmias. NADH/NAD(+) is the main redox couple controlling mitochondrial energy production, glycolysis, and other redox reactions. Here, we tested whether cytosolic NADH/NAD(+) redox potential regulates NCX activity in adult cardiomyocytes. NCX current (INCX), measured with whole cell patch clamp, was inhibited in response to cytosolic NADH loaded directly via pipette or increased by extracellular lactate perfusion, whereas an increase of mitochondrial NADH had no effect. Reactive oxygen species (ROS) accumulation was enhanced by increasing cytosolic NADH, and NADH-induced INCX inhibition was abolished by the H2O2 scavenger catalase. NADH-induced ROS accumulation was independent of mitochondrial respiration (rotenone-insensitive) but was inhibited by the flavoenzyme blocker diphenylene iodonium. NADPH oxidase was ruled out as the effector because INCX was insensitive to cytosolic NADPH, and NADH-induced ROS and INCX inhibition were not abrogated by the specific NADPH oxidase inhibitor gp91ds-tat. This study reveals a novel mechanism of NCX regulation by cytosolic NADH/NAD(+) redox potential through a ROS-generating NADH-driven flavoprotein oxidase. The mechanism is likely to play a key role in Ca(2+) homeostasis and the response to alterations in the cytosolic pyridine nucleotide redox state during ischemia-reperfusion or other cardiovascular diseases.
Collapse
Affiliation(s)
- Ting Liu
- From the Division of Cardiology, Department of Medicine, The Johns Hopkins University, Baltimore, Maryland 21205
| | | |
Collapse
|