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Bortoluzzi VT, Brust L, Preissler T, de Franceschi ID, Wannmacher CMD. Creatine plus pyruvate supplementation prevents oxidative stress and phosphotransfer network disturbances in the brain of rats subjected to chemically-induced phenylketonuria. Metab Brain Dis 2019; 34:1649-1660. [PMID: 31352540 DOI: 10.1007/s11011-019-00472-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 07/14/2019] [Indexed: 12/13/2022]
Abstract
Phenylketonuria (PKU) is the most common inborn error of amino acid metabolism. Usually diagnosed within the first month of birth, it is essential that the patient strictly follow the dietary restriction of natural protein intake. Otherwise, PKU impacts the development of the brain severely and may result in microcephaly, epilepsy, motor deficits, intellectual disability, and psychiatric and behavioral disorders. The neuropathology associated with PKU includes defects of myelination, insufficient synthesis of monoamine neurotransmitters, amino acid imbalance across the blood-brain barrier, and involves intermediary metabolic pathways supporting energy homeostasis and antioxidant defenses in the brain. Considering that the production of reactive oxygen species (ROS) is inherent to energy metabolism, we investigated the association of creatine+pyruvate (Cr + Pyr), both energy substrates with antioxidants properties, as a possible treatment to mitigate oxidative stress and phosphotransfer network impairment elicited in the brain of young Wistar rats by chemically-induced PKU. We induced PKU through the administration of α-methyl-L-phenylalanine and phenylalanine for 7 days, with and without Cr + Pyr supplementation, until postpartum day 14. The cotreatment with Cr + Pyr administered concurrently with PKU induction prevented ROS formation and part of the alterations observed in antioxidants defenses and phosphotransfer network enzymes in the cerebral cortex, hippocampus, and cerebellum. If such prevention also occurs in PKU patients, supplementing the phenylalanine-restricted diet with antioxidants and energetic substrates might be beneficial to these patients.
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Affiliation(s)
- Vanessa Trindade Bortoluzzi
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos 2600-Anexo, Porto Alegre, RS, CEP 90.035-003, Brazil.
| | - Letícia Brust
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos 2600-Anexo, Porto Alegre, RS, CEP 90.035-003, Brazil
| | - Thales Preissler
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos 2600-Anexo, Porto Alegre, RS, CEP 90.035-003, Brazil
| | - Itiane Diehl de Franceschi
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos 2600-Anexo, Porto Alegre, RS, CEP 90.035-003, Brazil
| | - Clovis Milton Duval Wannmacher
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos 2600-Anexo, Porto Alegre, RS, CEP 90.035-003, Brazil
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Branchial bioenergetics dysfunction as a relevant pathophysiological mechanism in freshwater silver catfish (Rhamdia quelen) experimentally infected with Flavobacterium columnare. Microb Pathog 2019; 138:103817. [PMID: 31672529 DOI: 10.1016/j.micpath.2019.103817] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/21/2019] [Accepted: 10/21/2019] [Indexed: 01/20/2023]
Abstract
Flavobacterium columnare, the causative agent of columnaris disease, is a serious bacterial disease responsible for causing devastating mortality rates in several species of freshwater fish, leading to severe economic losses in the aquaculture industry. Notwithstanding the enormous impacts this disease can have, very little is known regarding the interaction between the host and bacterium in terms of the mortality rate of silver catfish (Rhamdia quelen), as well its linkage to gill energetic homeostasis. Therefore, we conducted independent experiments to evaluate the mortality rates caused by F. columnare in silver catfish, as well as whether columnaris disease impairs the enzymes of the phosphoryl transfer network in gills of silver catfish and the pathways involved in this inhibition. Experiment I revealed that clinical signs started to appear 72 h post-infection (hpi), manifesting as lethargy, skin necrosis, fin erosion and gill discoloration. Silver catfish began to die at 96 hpi, and 100% mortality was observed at 120 hpi. Experiment II revealed that creatine kinase (CK, cytosolic and mitochondrial) and pyruvate kinase (PK) activities were inhibited in silver catfish experimentally infected with F. columnare, while no significant difference was observed between experimental and control groups with respect to adenylate kinase activity. Activity of the branchial sodium-potassium pump (Na+, K+-ATPase) was inhibited while reactive oxygen species (ROS) and lipid peroxidation levels were higher in silver catfish experimentally infected with F. columnare than in the control group at 72 hpi. Based on these data, the impairment of CK activity elicited by F. columnare caused a disruption in branchial energetic balance, possibly reducing ATP availability in the gills and provoking impairment of Na+, K +ATPase activity. The inhibition of CK and PK activities appears to be mediated by ROS overproduction and lipid peroxidation, both of which contribute to disease pathogenesis associated with branchial tissue.
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Salvadori Schafer A, D Baldissera M, Bagolin da Silva C, Sorraila de Oliveira J, Igor Magalhães de Matos AF, Lopes Dornelles G, Grando TH, Trevisan Gressler L, Stefanello S, Santi E, Pelegrine Minho A, Rodrigues D, F Souza C, L R Leal M, G Monteiro S, T A Lopes S, Melazzo de Andrade C. Copper oxide and closantel prevent alterations in hepatic energetic metabolism and reduce inflammation in Haemonchus contortus infection. Exp Parasitol 2019; 204:107726. [PMID: 31299264 DOI: 10.1016/j.exppara.2019.107726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 06/10/2019] [Accepted: 07/05/2019] [Indexed: 11/28/2022]
Abstract
The aims of this study were to evaluate if the use of copper oxide wire particles, isolated or in association with closantel, in lambs infected with Haemonchus contortus enhances the anthelmintic efficacy of closantel, as well as to evaluate the effects of treatment in hepatic energy metabolism, inflammatory markers and hematological and biochemical tests. The lambs were randomly divided into five groups (6 animals each), as follows: uninfected animals (Control); animals infected with H. contortus (HC); infected and treated with closantel (HC + CL); infected and treated with copper oxide wire particles (HC + Cu); and infected and treated with closantel plus copper oxide wire particles (HC + CL + Cu). The animals of infected groups were infected orally with H. contortus (5,000 L3 -larvae) and on day 14 post infection (p.i) the treatments were initiated. The egg per gram of feces (EPG), butyrylcholinesterase (BuChE), myeloperoxidase (MPO), adenylate kinase (AK) and pyruvate kinase (PK) activities and hematological and biochemical tests were evaluated. Treatments with copper oxide (isolated and associated) were able to reduce the EPG count on days 28, 35, 42 and 49 p.i when compared to HC group, while closantel was able to reduce EPG only from day 35 p.i. Moreover, treatment with closantel (isolated or associated) was able to prevent the inhibition of hepatic AK and PK activities caused by H. contortus infection, which may contribute to efficient intracellular energetic communication in order to maintain the balance between cellular ATP consumption and production. Butyrylcholinesterase and MPO activities were higher in infected lambs compared to uninfected, while treated groups showed lower enzymatic activity compared to the group HC. The use of all therapeutic protocols was able to reduce the EPG count. Based on these evidences, the use of copper oxide plus closantel may be considered an alternative to treat lambs infected by H. contortus.
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Affiliation(s)
- Andressa Salvadori Schafer
- Laboratório de Análises Clínicas Veterinárias, Departamento de Clínica de Pequenos Animais, Universidade Federal de Santa Maria, Av. Roraima nº1000, Santa Maria, Brazil.
| | - Matheus D Baldissera
- Laboratório de Parasitologia Veterinária, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Cássia Bagolin da Silva
- Laboratório de Análises Clínicas Veterinárias, Departamento de Clínica de Pequenos Animais, Universidade Federal de Santa Maria, Av. Roraima nº1000, Santa Maria, Brazil
| | - Juliana Sorraila de Oliveira
- Laboratório de Bioquímica e Estresse Oxidativo, Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Av. Roraima nº1000, Santa Maria, Brazil
| | | | - Guilherme Lopes Dornelles
- Laboratório de Análises Clínicas Veterinárias, Departamento de Clínica de Pequenos Animais, Universidade Federal de Santa Maria, Av. Roraima nº1000, Santa Maria, Brazil
| | - Thirssa Helena Grando
- Laboratório de Parasitologia Veterinária, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Lucas Trevisan Gressler
- Laboratório de Parasitologia Veterinária, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Simone Stefanello
- Laboratório de Endocrinologia e Metabologia Animal, Departamento de Clínica de Grandes Animais, Universidade Federal de Santa Maria, Av. Roraima nº1000, Santa Maria, Brazil
| | - Eduarda Santi
- Laboratório de Parasitologia Veterinária, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | | | - Daniele Rodrigues
- Laboratório de Análises Clínicas Veterinárias, Departamento de Clínica de Pequenos Animais, Universidade Federal de Santa Maria, Av. Roraima nº1000, Santa Maria, Brazil
| | - Carine F Souza
- Departamento de Fisiologia e Farmacologia, Av. Roraima nº1000, Santa Maria, RS, Brazil
| | - Marta L R Leal
- Laboratório de Endocrinologia e Metabologia Animal, Departamento de Clínica de Grandes Animais, Universidade Federal de Santa Maria, Av. Roraima nº1000, Santa Maria, Brazil
| | - Silvia G Monteiro
- Laboratório de Parasitologia Veterinária, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Sonia T A Lopes
- Laboratório de Análises Clínicas Veterinárias, Departamento de Clínica de Pequenos Animais, Universidade Federal de Santa Maria, Av. Roraima nº1000, Santa Maria, Brazil
| | - Cinthia Melazzo de Andrade
- Laboratório de Análises Clínicas Veterinárias, Departamento de Clínica de Pequenos Animais, Universidade Federal de Santa Maria, Av. Roraima nº1000, Santa Maria, Brazil
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Human adipocytes and CD34 + cells from the stromal vascular fraction of the same adipose tissue differ in their energy metabolic enzyme configuration. Exp Cell Res 2019; 380:47-54. [PMID: 31002814 DOI: 10.1016/j.yexcr.2019.04.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/26/2019] [Accepted: 04/15/2019] [Indexed: 01/24/2023]
Abstract
Adipose tissue plays a role in energy storage and metabolic balance and is composed of different cell types. The metabolic activity of the tissue itself has been a matter of research for a long time, but comparative data about the energy metabolism of different cell types of human subcutaneous adipose tissue are sparse. Therefore, we compared the activity of major energy metabolic pathways of adipocytes and CD34+ cells from the stromal vascular fraction (SVF) separated from the same tissue. This CD34+ cell fraction is enriched with adipose tissue-derived mesenchymal progenitors, as they account for the largest proportion of CD34+ cells of the SVF. Adipocytes displayed significantly higher mitochondrial enzyme capacities compared to CD34+ SVF-cells, as shown by the higher activities of isocitrate dehydrogenase and ß-hydroxyacyl-CoA dehydrogenase. Inversely, the CD34+ SVF-cells showed higher capacities for cytosolic carbohydrate metabolism, represented by the activity of glycolysis and the pentose phosphate pathway. Thus, the CD34+ SVF-cells may ensure the provision of pentose phosphates and reduction equivalents for the replication of DNA during proliferation. The data indicate that these two cell fractions of the human adipose tissue vary in their metabolic configuration adapted to their physiological demands regarding proliferation and differentiation in vivo.
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55
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AMPK breathing and oxygen supply. Respir Physiol Neurobiol 2019; 265:112-120. [DOI: 10.1016/j.resp.2018.08.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 08/06/2018] [Accepted: 08/31/2018] [Indexed: 01/28/2023]
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Determination of ATP, ADP, and AMP Levels by Reversed-Phase High-Performance Liquid Chromatography in Cultured Cells. Methods Mol Biol 2019; 1925:223-232. [PMID: 30674030 DOI: 10.1007/978-1-4939-9018-4_19] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Cytoplasmic and mitochondrial Ca2+ signals couple cellular ATP production to activity-related energy demand. In order to accurately determine the bioenergetic effect of Ca2+ signals, cellular energy charge, i.e., the compound ratio of the phosphorylated adenine nucleotides AMP, ADP, and ATP, should be estimated. Reversed-phase high-performance liquid chromatography (RP-HPLC) allows the rapid separation and quantitation of these molecules. Here we describe a protocol applied in our laboratories to quantify ATP, ADP, and AMP nucleotides in cellular extracts.
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Tyumentsev MA, Stefanova NA, Muraleva NA, Rumyantseva YV, Kiseleva E, Vavilin VA, Kolosova NG. Mitochondrial Dysfunction as a Predictor and Driver of Alzheimer's Disease-Like Pathology in OXYS Rats. J Alzheimers Dis 2019; 63:1075-1088. [PMID: 29710722 DOI: 10.3233/jad-180065] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Growing evidence suggests that mitochondrial dysfunction is an early event in sporadic Alzheimer's disease (AD), but the impact of mitochondrial dysfunction on the transition from healthy aging to AD remains elusive. Here we estimated the influence of mitochondrial dysfunction on the initiation of AD signs in OXYS rats, which simulate key characteristics of sporadic AD. We assessed the mitochondrial ultrastructure of pyramidal neurons of the hippocampus at the age preceding the development (age 20 days), during manifestation (4-5 months), and at the well-pronounced stages (18-24 months) of the AD-like pathology in OXYS rats. Ultrastructural alterations were collated with the amounts of proteins mediating mitochondrial dynamics [mitofusins (MFN1 and MFN2) and dynamin-1-like protein (DRP1)]; with activity of respiratory chain complexes I, IV, and V in the hippocampal mitochondria; with reactive oxygen species (ROS) production; and with expression of uncoupling protein 2 (UCP2) regulating ROS production. Already at the preclinical stage, OXYS rats showed some characteristic changes in hippocampal mitochondria, which increased in size with the manifestation and progression of AD-like pathology, including decreased activity of respiratory complexes against the background of greater fusion and formation of larger mitochondria. Signs of AD developed simultaneously with increasing dysfunction of mitochondria, with a dramatic decrease in their number, and with increased fission but without upregulation of ROS production (observed only in 20-day-old OXYS rats). Summarizing the data from our present and previous studies, we conclude that mitochondrial dysfunction appears to mediate or possibly even initiate pathological molecular cascades of AD-like pathology in OXYS rats and can be considered a predictor of the early development of the late-onset form of AD in humans.
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Affiliation(s)
| | | | | | | | | | - Valentin A Vavilin
- Institute of Cytology and Genetics, Novosibirsk, Russia.,Institute of Molecular Biology and Biophysics, Novosibirsk, Russia
| | - Nataliya G Kolosova
- Institute of Cytology and Genetics, Novosibirsk, Russia.,Novosibirsk State University, Novosibirsk, Russia
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58
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Lovrak M, Hendriksen WE, Kreutzer MT, van Steijn V, Eelkema R, van Esch JH. Control over the formation of supramolecular material objects using reaction-diffusion. SOFT MATTER 2019; 15:4276-4283. [PMID: 31038130 DOI: 10.1039/c8sm02588f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Controlled diffusion, reaction and assembly of hydrogelator precursors can be used to create soft hydrogel objects of defined shape and size. In this study we show that controlling local reaction kinetics by means of pH, diffusion length and the concentrations of reactants allows control over the dimensions of formed supramolecular structures. By correlating a reaction diffusion model to experimental results, we show that the influence of all these control parameters can be unified using the Damköhler number, thus providing an easy-to-use relation between experimental parameters and structure dimensions. Finally, our study suggests that control over concentration gradients and chemical reactivity in combination with supramolecular chemistry is a promising platform for the design of soft matter objects of defined sizes, a concept that has received little attention up until now.
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Affiliation(s)
- Matija Lovrak
- Department of Chemical Engineering, Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Wouter E Hendriksen
- Department of Chemical Engineering, Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Michiel T Kreutzer
- Department of Chemical Engineering, Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Volkert van Steijn
- Department of Chemical Engineering, Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Rienk Eelkema
- Department of Chemical Engineering, Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Jan H van Esch
- Department of Chemical Engineering, Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, The Netherlands.
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59
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Puurand M, Tepp K, Timohhina N, Aid J, Shevchuk I, Chekulayev V, Kaambre T. Tubulin βII and βIII Isoforms as the Regulators of VDAC Channel Permeability in Health and Disease. Cells 2019; 8:cells8030239. [PMID: 30871176 PMCID: PMC6468622 DOI: 10.3390/cells8030239] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/07/2019] [Accepted: 03/09/2019] [Indexed: 12/14/2022] Open
Abstract
In recent decades, there have been several models describing the relationships between the cytoskeleton and the bioenergetic function of the cell. The main player in these models is the voltage-dependent anion channel (VDAC), located in the mitochondrial outer membrane. Most metabolites including respiratory substrates, ADP, and Pi enter mitochondria only through VDAC. At the same time, high-energy phosphates are channeled out and directed to cellular energy transfer networks. Regulation of these energy fluxes is controlled by β-tubulin, bound to VDAC. It is also thought that β-tubulin‒VDAC interaction modulates cellular energy metabolism in cancer, e.g., switching from oxidative phosphorylation to glycolysis. In this review we focus on the described roles of unpolymerized αβ-tubulin heterodimers in regulating VDAC permeability for adenine nucleotides and cellular bioenergetics. We introduce the Mitochondrial Interactosome model and the function of the βII-tubulin subunit in this model in muscle cells and brain synaptosomes, and also consider the role of βIII-tubulin in cancer cells.
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Affiliation(s)
- Marju Puurand
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
| | - Kersti Tepp
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
| | - Natalja Timohhina
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
| | - Jekaterina Aid
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
| | - Igor Shevchuk
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
| | - Vladimir Chekulayev
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
| | - Tuuli Kaambre
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
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60
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Acevedo C, Blanchard K, Bacigalupo J, Vergara C. Possible ATP trafficking by ATP-shuttles in the olfactory cilia and glucose transfer across the olfactory mucosa. FEBS Lett 2019; 593:601-610. [PMID: 30801684 DOI: 10.1002/1873-3468.13346] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 02/07/2019] [Accepted: 02/07/2019] [Indexed: 11/12/2022]
Abstract
Odor transduction in the cilia of olfactory sensory neurons involves several ATP-requiring enzymes. ATP is generated by glycolysis in the ciliary lumen, using glucose incorporated from surrounding mucus, and by oxidative phosphorylation in the dendrite. During prolonged stimulation, the cilia maintain ATP levels along their length, by unknown means. We used immunochemistry, RT-PCR, and immunoblotting to explore possible underlying mechanisms. We found the ATP-shuttles, adenylate and creatine kinases, capable of equilibrating ATP. We also investigated how glucose delivered by blood vessels in the olfactory mucosa reaches the mucus. We detected, in sustentacular and Bowman's gland cells, the crucial enzyme in glucose secretion glucose-6-phosphatase, implicating both cell types as putative glucose pathways. We propose a model accounting for both processes.
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Affiliation(s)
- Claudia Acevedo
- Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Kris Blanchard
- Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Juan Bacigalupo
- Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Cecilia Vergara
- Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
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Intestinal injury caused by Eimeria spp. impairs the phosphotransfer network and gain weight in experimentally infected chicken chicks. Parasitol Res 2019; 118:1573-1579. [PMID: 30815727 DOI: 10.1007/s00436-019-06221-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 01/17/2019] [Indexed: 02/04/2023]
Abstract
Parasitic infections caused by protozoan belonging to genus Eimeria are considered important for the poultry industry, due to their severe intestinal lesions and high mortality rates, causing significant economic losses. Although several mechanisms of coccidiosis pathogenesis are known, the effects of this infection on intestinal enzymes linked to adenosine triphosphate (ATP) metabolism, as creatine kinase (CK), adenylate kinase (AK), and pyruvate kinase (PK), remain unknown. Thus, the aim of this study was to evaluate whether coccidiosis impairs enzymes linked ATP metabolism in the intestine of chicken chicks. For this, 42 animals that were 2 days old were divided into two groups: uninfected (the negative control group) and experimentally infected on second day of life (the positive control group). On days 5, 10, and 15 post-infection (PI), fecal samples were collected for oocyst counts; intestinal tissue was collected in order to evaluate CK, AK, and PK activities, as well as parameters of the oxidative stress and histopathology. On days 10 and 15 PI, infected animals showed high counts of oocysts in fecal samples and intestinal lesions compared to the control group. Cytosolic CK activity was higher in infected animals on days 10 and 15 PI compared to the control group, while mitochondrial CK activity was lower on days 5, 10, and 15 PI. Also, AK activity was lower in infected animals on days 10 and 15 PI compared to control group, while no differences were observed between groups regarding PK activity. In relation to parameters of oxidative stress, intestinal lipid peroxidation and reactive oxygen species levels were higher in infected animals on days 10 and 15 PI compared to the control group, while non-protein thiol levels were lower on day 10 PI. On the 15th day, infected animals had lower body weight (P < 0.05). Based on this evidence, inhibition of mitochondrial CK activity causes an impairment of intestinal energetic homeostasis possibly through depletion on ATP levels, although the cytosolic CK activity acted as an attempt to restore the mitochondrial ATP levels through a feedback mechanism. Moreover, the impairment on energy metabolism appears to be mediated by excessive production of intestinal ROS, as well as oxidation of lipids and thiol groups.
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Mado K, Chekulayev V, Shevchuk I, Puurand M, Tepp K, Kaambre T. On the role of tubulin, plectin, desmin, and vimentin in the regulation of mitochondrial energy fluxes in muscle cells. Am J Physiol Cell Physiol 2019; 316:C657-C667. [PMID: 30811221 DOI: 10.1152/ajpcell.00303.2018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Mitochondria perform a central role in life and death of the eukaryotic cell. They are major players in the generation of macroergic compounds and function as integrated signaling pathways, including the regulation of Ca2+ signals and apoptosis. A growing amount of evidence is demonstrating that mitochondria of muscle cells use cytoskeletal proteins (both microtubules and intermediate filaments) not only for their movement and proper cellular positioning, but also to maintain their biogenesis, morphology, function, and regulation of energy fluxes through the outer mitochondrial membrane (MOM). Here we consider the known literature data concerning the role of tubulin, plectin, desmin and vimentin in bioenergetic function of mitochondria in striated muscle cells, as well as in controlling the permeability of MOM for adenine nucleotides (ADNs). This is of great interest since dysfunctionality of these cytoskeletal proteins has been shown to result in severe myopathy associated with pronounced mitochondrial dysfunction. Further efforts are needed to uncover the pathways by which the cytoskeleton supports the functional capacity of mitochondria and transport of ADN(s) across the MOM (through voltage-dependent anion channel).
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Affiliation(s)
- Kati Mado
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics , Tallinn , Estonia
| | - Vladimir Chekulayev
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics , Tallinn , Estonia
| | - Igor Shevchuk
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics , Tallinn , Estonia
| | - Marju Puurand
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics , Tallinn , Estonia
| | - Kersti Tepp
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics , Tallinn , Estonia
| | - Tuuli Kaambre
- Laboratory of Chemical Biology, National Institute of Chemical Physics and Biophysics , Tallinn , Estonia
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Nakano S, Shimizu M, Dinh H, Morii T. Highly selective dual sensing of ATP and ADP using fluorescent ribonucleopeptide sensors. Chem Commun (Camb) 2019; 55:1611-1614. [PMID: 30657140 DOI: 10.1039/c8cc09934k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Highly selective fluorescent sensors for ATP and ADP were constructed from RNA aptamers by applying a modular design of a ribonucleopeptide scaffold. These sensors allow facile and quantitative detection of ATP and ADP simultaneously in a solution and enable monitoring of the time-course changes of ATP and ADP concentrations in an enzymatic reaction.
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Affiliation(s)
- Shun Nakano
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
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Baldissera MD, Souza CF, Descovi SN, Zanella R, Prestes OD, de Matos AF, da Silva AS, Baldisserotto B, Gris A, Mendes RE. Disturbance of energetic homeostasis and oxidative damage provoked by trichlorfon as relevant toxicological mechanisms using silver catfish as experimental model. Chem Biol Interact 2019; 299:94-100. [DOI: 10.1016/j.cbi.2018.11.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/24/2018] [Accepted: 11/23/2018] [Indexed: 10/27/2022]
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Fortuoso BF, Baldissera MD, Souza CF, Griss LG, Casagrande RA, de Cristo TG, Santiani F, da Cunha MG, Boiago MM, Stefani LM, Da Silva AS. Impairment of the phosphotransfer network and performance in broiler chickens experimentally infected by Eimeria spp.: The role of the oxidative stress. Parasitol Int 2019; 70:16-22. [PMID: 30654027 DOI: 10.1016/j.parint.2019.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 01/12/2019] [Accepted: 01/14/2019] [Indexed: 12/27/2022]
Abstract
The aim of this study was to evaluate whether infection Eimeria spp. in broiler chickens could negatively affect seric enzymes linked to adenosine triphosphate (ATP) metabolism and its relationship to oxidative stress. For this, 30 broiler chickens, 27 days-old, were divided into two groups (n = 15): the control group (C) and the group infected by Eimeria spp. (I). On days 1, 7 and 15 of the experiment, the animals were weighed, and fecal and blood samples were collected to evaluate the presence of oocysts and for serum biochemistry and enzymatic parameters, respectively. On day 15, one animal per repetition was submitted to euthanasia and intestinal fragments were collected for histopathological analyses. The body weight was lower in infected animals on day 15 of experiment, while oocyst counts were higher in infected animals on days 7 and 15 of the experiment. Serum levels of globulins were lower in infected animals on days 7 and 15 of experiment, while uric acid levels were higher in the same days, which represent changes on the immune system. Compared to the uninfected animals, on days 7 and 15, levels of serum globulins, triglycerides, creatine kinase and cholesterol were lower. Levels of adenylate kinase and reactive oxygen species (ROS) were higher on both days in infected animals, while levels of thiobarbituric acid-reactive substances (TBARS) were elevated on day 15. Lesions and immature forms of the parasite were observed in the intestines of infected birds. The phosphotransfer network elicited by an oxidative stress negatively affected the performance of broiler chickens with coccidiosis.
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Affiliation(s)
- Bruno F Fortuoso
- Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Brazil
| | - Matheus D Baldissera
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria (UFSM), Santa Maria, Brazil
| | - Carine F Souza
- Graduate Program of Toxicological Biochemistry, Universidade Federal de Santa Maria (UFSM), Santa Maria, Brazil
| | - Luiz Gustavo Griss
- Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Brazil
| | - Renata A Casagrande
- Graduate Program in Animal Production, Universidade do Estado de Santa Catarina (UDESC), Lages, Brazil
| | - Thierry G de Cristo
- Graduate Program in Animal Production, Universidade do Estado de Santa Catarina (UDESC), Lages, Brazil
| | - Fábio Santiani
- Graduate Program in Animal Production, Universidade do Estado de Santa Catarina (UDESC), Lages, Brazil
| | - Marily G da Cunha
- Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Brazil
| | - Marcel M Boiago
- Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Brazil
| | - Lenita M Stefani
- Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Brazil
| | - Aleksandro S Da Silva
- Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Brazil; Graduate Program of Toxicological Biochemistry, Universidade Federal de Santa Maria (UFSM), Santa Maria, Brazil.
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KOLLING JENIFER, KOLLING JANAÍNA, FRANCESCHI ITIANEDDE, NISHIHIRA VIVIANS, BALDISSERA MATHEUSD, PINTO CLÁUDIAG, MEZZOMO NATHANAJ, CARMO GUILHERMEMDO, FEKSA LUCIANER, FERNANDES LIANAS, ORENGO GILBERTO, VAUCHER RODRIGOA, GIONGO JANICEL, WYSE ANGELAT, WANNMACHER CLOVISM, RECH VIRGINIAC. Resveratrol and resveratrol-hydroxypropyl-β-cyclodextrin complex recovered the changes of creatine kinase and Na+, K+-ATPase activities found in the spleen from streptozotocin-induced diabetic rats. ACTA ACUST UNITED AC 2019; 91:e20181330. [DOI: 10.1590/0001-3765201920181330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 05/02/2018] [Indexed: 01/22/2023]
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Ventura-Clapier R, Piquereau J, Veksler V, Garnier A. Estrogens, Estrogen Receptors Effects on Cardiac and Skeletal Muscle Mitochondria. Front Endocrinol (Lausanne) 2019; 10:557. [PMID: 31474941 PMCID: PMC6702264 DOI: 10.3389/fendo.2019.00557] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 07/29/2019] [Indexed: 12/27/2022] Open
Abstract
Mitochondria are unique organelles present in almost all cell types. They are involved not only in the supply of energy to the host cell, but also in multiple biochemical and biological processes like calcium homeostasis, production, and regulation of reactive oxygen species (ROS), pH control, or cell death. The importance of mitochondria in cell biology and pathology is increasingly recognized. Being maternally inherited, mitochondria exhibit a tissue-specificity, because most of the mitochondrial proteins are encoded by the nuclear genome. This renders them exquisitely well-adapted to the physiology of the host cell. It is thus not surprising that mitochondria show a sexual dimorphism and that they are also prone to the influence of sex chromosomes and sex hormones. Estrogens affect mitochondria through multiple processes involving membrane and nuclear estrogen receptors (ERs) as well as more direct effects. Moreover, estrogen receptors have been identified within mitochondria. The effects of estrogens on mitochondria comprise protein content and specific activity of mitochondrial proteins, phospholipid content of membranes, oxidant and anti-oxidant capacities, oxidative phosphorylation, and calcium retention capacities. Herein we will briefly review the life cycle and functions of mitochondria, the importance of estrogen receptors and the effects of estrogens on heart and skeletal muscle mitochondria.
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68
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Krachtus D, Smith JC, Imhof P. Quantum Mechanical/Molecular Mechanical Analysis of the Catalytic Mechanism of Phosphoserine Phosphatase. Molecules 2018; 23:E3342. [PMID: 30563005 PMCID: PMC6321591 DOI: 10.3390/molecules23123342] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/11/2018] [Accepted: 12/13/2018] [Indexed: 11/25/2022] Open
Abstract
Phosphoserine phosphatase (PSP), a member of the haloacid dehalogenase (HAD) superfamily that comprises the vast majority of phosphotransferases, is likely a steady-state regulator of the level of d-serine in the brain. The proposed catalytic cycle of PSP consists of a two-step mechanism: formation of a phospho-enzyme intermediate by phosphate transfer to Asp11 and its subsequent hydrolysis. Our combined quantum mechanical/molecular mechanical (QM/MM) calculations of the reaction pathways favour a dissociative mechanism of nucleophilic substitution via a trigonal-planar metaphosphate-like configuration for both steps, associated with proton transfer to the leaving group or from the nucleophile. This proton transfer is facilitated by active site residue Asp13 that acts as both a general base and a general acid. Free energy calculation on the reaction pathways further support the structural role of the enzymatic environment and the active site architecture. The choice of a proper reaction coordinate along which to bias the free energy calculations can be guided by a projection of the canonical reaction coordinate obtained from a chain-of-state optimisation onto important internal coordinates.
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Affiliation(s)
- Dieter Krachtus
- Computational Molecular Biophysics Group, Interdisciplinary Center for Scientific Computing (IWR), Im Neuenheimer Feld 368, 69120 Heidelberg, Germany.
| | - Jeremy C Smith
- Computational Molecular Biophysics Group, Interdisciplinary Center for Scientific Computing (IWR), Im Neuenheimer Feld 368, 69120 Heidelberg, Germany.
- University of Tennessee/Oak Ridge National Laboratory, Center for Molecular Biophysics, One Bethel Valley Road, P.O. Box 2008, Oak Ridge, TN 37831-6255, USA.
| | - Petra Imhof
- Freie Universität Berlin, Institute for Theoretical Physics, Arnimallee 14, 14195 Berlin, Germany.
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Gabr RE, El-Sharkawy AMM, Schär M, Panjrath GS, Gerstenblith G, Weiss RG, Bottomley PA. Cardiac work is related to creatine kinase energy supply in human heart failure: a cardiovascular magnetic resonance spectroscopy study. J Cardiovasc Magn Reson 2018; 20:81. [PMID: 30526611 PMCID: PMC6287363 DOI: 10.1186/s12968-018-0491-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 09/12/2018] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND It has been hypothesized that the supply of chemical energy may be insufficient to fuel normal mechanical pump function in heart failure (HF). The creatine kinase (CK) reaction serves as the heart's primary energy reserve, and the supply of adenosine triphosphate (ATP flux) it provides is reduced in human HF. However, the relationship between the CK energy supply and the mechanical energy expended has never been quantified in the human heart. This study tests whether reduced CK energy supply is associated with reduced mechanical work in HF patients. METHODS Cardiac mechanical work and CK flux in W/kg, and mechanical efficiency were measured noninvasively at rest using cardiac pressure-volume loops, magnetic resonance imaging and phosphorus spectroscopy in 14 healthy subjects and 27 patients with mild-to-moderate HF. RESULTS In HF, the resting CK flux (126 ± 46 vs. 179 ± 50 W/kg, p < 0.002), the average (6.8 ± 3.1 vs. 10.1 ± 1.5 W/kg, p <0.001) and the peak (32 ± 14 vs. 48 ± 8 W/kg, p < 0.001) cardiac mechanical work-rates, as well as the cardiac mechanical efficiency (53% ± 16 vs. 79% ± 3, p < 0.001), were all reduced by a third compared to healthy subjects. In addition, cardiac CK flux correlated with the resting peak and average mechanical power (p < 0.01), and with mechanical efficiency (p = 0.002). CONCLUSION These first noninvasive findings showing that cardiac mechanical work and efficiency in mild-to-moderate human HF decrease proportionately with CK ATP energy supply, are consistent with the energy deprivation hypothesis of HF. CK energy supply exceeds mechanical work at rest but lies within a range that may be limiting with moderate activity, and thus presents a promising target for HF treatment. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT00181259 .
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Affiliation(s)
- Refaat E. Gabr
- Division of MR Research, Department of Radiology, The Johns Hopkins University, Park Building, 600 N Wolfe St, Baltimore, MD 21287 USA
- Department of Diagnostic and Interventional Imaging, University of Texas Health Science Center at Houston, Houston, Texas USA
| | - AbdEl-Monem M. El-Sharkawy
- Division of MR Research, Department of Radiology, The Johns Hopkins University, Park Building, 600 N Wolfe St, Baltimore, MD 21287 USA
- Systems and Biomedical Engineering Department, Faculty of Engineering, Cairo University, Giza, Egypt
| | - Michael Schär
- Division of MR Research, Department of Radiology, The Johns Hopkins University, Park Building, 600 N Wolfe St, Baltimore, MD 21287 USA
| | - Gurusher S. Panjrath
- Division of Cardiology, Department of Medicine, The Johns Hopkins University, Baltimore, MD USA
- The GW Heart and Vascular Institute, George Washington University School of Medicine and Health Sciences, Washington DC, USA
| | - Gary Gerstenblith
- Division of Cardiology, Department of Medicine, The Johns Hopkins University, Baltimore, MD USA
| | - Robert G. Weiss
- Division of Cardiology, Department of Medicine, The Johns Hopkins University, Baltimore, MD USA
| | - Paul A. Bottomley
- Division of MR Research, Department of Radiology, The Johns Hopkins University, Park Building, 600 N Wolfe St, Baltimore, MD 21287 USA
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Involvement of the phosphoryl transfer network on cardiac energetic metabolism during Staphylococcus aureus infection and its association to disease pathophysiology. Microb Pathog 2018; 126:318-322. [PMID: 30439401 DOI: 10.1016/j.micpath.2018.11.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/29/2018] [Accepted: 11/06/2018] [Indexed: 11/21/2022]
Abstract
Evidences have suggested that the phosphoryl transfer network by the enzymatic activities of creatine kinase (CK), adenylate kinase (AK), pyruvate kinase (PK), and lactate dehydrogenase (LDH), shows new perspectives to understand some disturbances in the energy metabolism during bacterial infections. Thus, the aim of this study was to evaluate whether Staphylococcus aureus infection in mice could alter serum and cardiac activities of these enzymes and their association to disease pathophysiology. For that, we measured total leukocytes, lymphocytes and neutrophils (just 48 h of infection) that were lower in infected animals after 48 and 72 h in infected mice compared with negative control, while total protein and globulin plasma levels were higher after 72 h of infection. The serum CK activity was higher in infected animals 48 and 72 h post-infection compared to the control group, as well as observed for mitochondrial cardiac CK activity. The serum PK activity was higher in infected animals after 72 h of infection compared to the control group, and lower in the cardiac tissue. The cardiac AK activity was lower in infected animals 48 h and 72 h post-infection compared to the control group, while serum and cardiac LDH activities were higher. Based on these evidences, it is possible to conclude that the stimulation of CK activity exerts a key role as an attempt to maintain the bioenergetic homeostasis by the production of phosphocreatine to avoid a rapid fall on the concentrations of total adenosine triphosphate. In summary, the phosphoryl transfer network can be considered a pathway involved in the improvement on tissue and cellular energy homeostasis of S. aureus-infected mice.
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71
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Giuliani AL, Sarti AC, Di Virgilio F. Extracellular nucleotides and nucleosides as signalling molecules. Immunol Lett 2018; 205:16-24. [PMID: 30439478 DOI: 10.1016/j.imlet.2018.11.006] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/09/2018] [Indexed: 12/26/2022]
Abstract
Extracellular nucleotides, mainly ATP, but also ADP, UTP, UDP and UDP-sugars, adenosine, and adenine base participate in the "purinergic signalling" pathway, an ubiquitous system of cell-to-cell communication. Fundamental pathophysiological processes such as tissue homeostasis, wound healing, neurodegeneration, immunity, inflammation and cancer are modulated by purinergic signalling. Nucleotides can be released from cells via unspecific or specific mechanisms. A non-regulated nucleotide release can occur from damaged or dying cells, whereas exocytotic granules, plasma membrane-derived microvesicles, membrane channels (connexins, pannexins, calcium homeostasis modulator (CALHM) channels and P2X7 receptor) or specific ATP binding cassette (ABC) transporters are involved in the controlled release. Four families of specific receptors, i.e. nucleotide P2X and P2Y receptors, adenosine P1 receptors, and the adenine-selective P0 receptor, and several ecto- nucleotidases are essential components of the "purinergic signalling" pathway. Thanks to the activity of ecto-nucleotidases, ATP (and possibly other nucleotides) are degraded into additional messenger molecules with specific action. The final biological effects depend on the type and amount of released nucleotides, their modification by ecto-nucleotidases, and their possible cellular re-uptake. Overall, these processes confer a remarkable level of selectivity and plasticity to purinergic signalling that makes this network one of the most relevant extracellular messenger systems in higher organisms.
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Affiliation(s)
- Anna Lisa Giuliani
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferarra, Italy
| | - Alba Clara Sarti
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferarra, Italy
| | - Francesco Di Virgilio
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferarra, Italy.
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72
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Binelli A, Magni S, La Porta C, Bini L, Della Torre C, Ascagni M, Maggioni D, Ghilardi A, Armini A, Landi C, Santo N, Madaschi L, Coccè V, Mutti F, Lionetti MC, Ciusani E, Del Giacco L. Cellular pathways affected by carbon nanopowder-benzo(α)pyrene complex in human skin fibroblasts identified by proteomics. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 160:144-153. [PMID: 29803189 DOI: 10.1016/j.ecoenv.2018.05.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 05/09/2018] [Accepted: 05/11/2018] [Indexed: 06/08/2023]
Abstract
One of the crucial and unsolved problems of the airborne carbon nanoparticles is the role played by the adsorbed environmental pollutants on their toxicological effect. Indeed, in the urban areas, the carbon nanoparticles usually adsorb some atmospheric contaminants, whose one of the leading representatives is the benzo(α)pyrene. Herein, we used the proteomics to investigate the alteration of toxicological pathways due to the carbon nanopowder-benzo(α)pyrene complex in comparison with the two contaminants administered alone on human skin-derived fibroblasts (hSDFs) exposed for 8 days in semi-static conditions. The preliminary confocal microscopy observations highlighted that carbon-nanopowder was able to pass through the cell membranes and accumulate into the cytoplasm both when administered alone and with the adsorbed benzo(α)pyrene. Proteomics revealed that the effect of carbon nanopowder-benzo(α)pyrene complex seems to be related to a new toxicological behavior instead of simple additive or synergistic effects. In detail, the cellular pathways modulated by the complex were mainly related to energy shift (glycolysis and pentose phosphate pathway), apoptosis, stress response and cellular trafficking.
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Affiliation(s)
- A Binelli
- Department of Biosciences, University of Milan, Italy.
| | - S Magni
- Department of Biosciences, University of Milan, Italy.
| | - C La Porta
- Department of Environmental Science and Policy, University of Milan, Italy; Center for Complexity & Biosystem, University of Milan, Italy
| | - L Bini
- Department of Life Science, University of Siena, Italy
| | - C Della Torre
- Department of Biosciences, University of Milan, Italy
| | - M Ascagni
- Department of Biosciences, University of Milan, Italy; UNITECH-NOLIMITS Platform, University of Milan, Italy
| | - D Maggioni
- Department of Chemistry, University of Milan, Italy
| | - A Ghilardi
- Department of Biosciences, University of Milan, Italy
| | - A Armini
- Department of Life Science, University of Siena, Italy
| | - C Landi
- Department of Life Science, University of Siena, Italy
| | - N Santo
- Department of Biosciences, University of Milan, Italy; UNITECH-NOLIMITS Platform, University of Milan, Italy
| | - L Madaschi
- Department of Biosciences, University of Milan, Italy; UNITECH-NOLIMITS Platform, University of Milan, Italy
| | - V Coccè
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Italy
| | - F Mutti
- Department of Environmental Science and Policy, University of Milan, Italy; Center for Complexity & Biosystem, University of Milan, Italy
| | - M C Lionetti
- Department of Environmental Science and Policy, University of Milan, Italy; Center for Complexity & Biosystem, University of Milan, Italy
| | - E Ciusani
- Department of Diagnostics and Applied Technology, Istituto Neurologico Carlo Besta, Milan, Italy
| | - L Del Giacco
- Department of Biosciences, University of Milan, Italy
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Intracellular Energy-Transfer Networks and High-Resolution Respirometry: A Convenient Approach for Studying Their Function. Int J Mol Sci 2018; 19:ijms19102933. [PMID: 30261663 PMCID: PMC6213097 DOI: 10.3390/ijms19102933] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 09/19/2018] [Accepted: 09/21/2018] [Indexed: 12/21/2022] Open
Abstract
Compartmentalization of high-energy phosphate carriers between intracellular micro-compartments is a phenomenon that ensures efficient energy use. To connect these sites, creatine kinase (CK) and adenylate kinase (AK) energy-transfer networks, which are functionally coupled to oxidative phosphorylation (OXPHOS), could serve as important regulators of cellular energy fluxes. Here, we introduce how selective permeabilization of cellular outer membrane and high-resolution respirometry can be used to study functional coupling between CK or AK pathways and OXPHOS in different cells and tissues. Using the protocols presented here the ability of creatine or adenosine monophosphate to stimulate OXPHOS through CK and AK reactions, respectively, is easily observable and quantifiable. Additionally, functional coupling between hexokinase and mitochondria can be investigated by monitoring the effect of glucose on respiration. Taken together, high-resolution respirometry in combination with permeabilization is a convenient approach for investigating energy-transfer networks in small quantities of cells and tissues in health and in pathology.
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Baldissera MD, Souza CF, De Matos AFIM, Baldisserotto B, da Silva AS, Monteiro SG. Tissue oxidative damage mediates impairment on phosphotransfer network during thymol intake: Effects on hepatic and renal bioenergetics. Chem Biol Interact 2018; 296:83-88. [PMID: 30243740 DOI: 10.1016/j.cbi.2018.09.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 09/11/2018] [Accepted: 09/18/2018] [Indexed: 01/05/2023]
Abstract
Recent evidences demonstrated that ingestion of several monoterpenes cause hepatic and renal damage due to impairment on mitochondrial energy production, eliciting a collapse on adenosine triphosphate (ATP) synthesis and consequently impairment on bioenergetic homeostasis. Thus, the aim of this study was to evaluate whether phosphotransfer network, catalyzed by creatine kinase (CK), adenylate kinase (AK), and pyruvate kinase (PK), can be a pathway to explain hepatic and renal bioenergetics homeostasis impairment due to thymol ingestion. Daily intake of thymol (40 mg/kg) significantly cause a decreased kidney weight and relative kidney weight compared to control group. The same dose of thymol inhibited renal cytosolic and mitochondrial CK activity as well as renal PK activity compared to control group. Finally, thymol (40 mg/kg) elicited a significant increase on renal reactive oxygen species and lipid damage levels, as well as an inhibition on antioxidant capacity against peroxyl radicals and non-protein thiol levels, which did not occur liver. Doses of 10 and 20 mg/kg of thymol administered orally for 30 consecutive days non-changed these variables. Based on these evidence, the data supported that intake of a high dose of thymol severely inhibits cytosolic and mitochondrial CK activity, a crucial enzyme to maintain cellular energy homeostasis. Moreover, high dietary thymol intake impaired communication between CK isoenzymes, which inhibits the attempts to regenerate ATP or to facilitate the CK/PCr shuttle to improve the intracellular ATP utilization and consumption. Moreover, the inhibition of renal CK and PK activities appears to be mediated by the renal oxidation of lipids and thiol groups, as well as by the reduction of the renal antioxidant capacity.
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Affiliation(s)
- Matheus D Baldissera
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
| | - Carine F Souza
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | | | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Aleksandro S da Silva
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, RS, Brazil
| | - Silvia G Monteiro
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
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Tinker A, Aziz Q, Li Y, Specterman M. ATP‐Sensitive Potassium Channels and Their Physiological and Pathophysiological Roles. Compr Physiol 2018; 8:1463-1511. [DOI: 10.1002/cphy.c170048] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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76
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Rissone A, Burgess SM. Rare Genetic Blood Disease Modeling in Zebrafish. Front Genet 2018; 9:348. [PMID: 30233640 PMCID: PMC6127601 DOI: 10.3389/fgene.2018.00348] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 08/09/2018] [Indexed: 01/06/2023] Open
Abstract
Hematopoiesis results in the correct formation of all the different blood cell types. In mammals, it starts from specific hematopoietic stem and precursor cells residing in the bone marrow. Mature blood cells are responsible for supplying oxygen to every cell of the organism and for the protection against pathogens. Therefore, inherited or de novo genetic mutations affecting blood cell formation or the regulation of their activity are responsible for numerous diseases including anemia, immunodeficiency, autoimmunity, hyper- or hypo-inflammation, and cancer. By definition, an animal disease model is an analogous version of a specific clinical condition developed by researchers to gain information about its pathophysiology. Among all the model species used in comparative medicine, mice continue to be the most common and accepted model for biomedical research. However, because of the complexity of human diseases and the intrinsic differences between humans and other species, the use of several models (possibly in distinct species) can often be more helpful and informative than the use of a single model. In recent decades, the zebrafish (Danio rerio) has become increasingly popular among researchers, because it represents an inexpensive alternative compared to mammalian models, such as mice. Numerous advantages make it an excellent animal model to be used in genetic studies and in particular in modeling human blood diseases. Comparing zebrafish hematopoiesis to mammals, it is highly conserved with few, significant differences. In addition, the zebrafish model has a high-quality, complete genomic sequence available that shows a high level of evolutionary conservation with the human genome, empowering genetic and genomic approaches. Moreover, the external fertilization, the high fecundity and the transparency of their embryos facilitate rapid, in vivo analysis of phenotypes. In addition, the ability to manipulate its genome using the last genome editing technologies, provides powerful tools for developing new disease models and understanding the pathophysiology of human disorders. This review provides an overview of the different approaches and techniques that can be used to model genetic diseases in zebrafish, discussing how this animal model has contributed to the understanding of genetic diseases, with a specific focus on the blood disorders.
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Affiliation(s)
- Alberto Rissone
- Translational and Functional Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, United States
| | - Shawn M Burgess
- Translational and Functional Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, United States
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Jaguezeski AM, Baldissera MD, Rhoden LA, Gomes TMA, Mendes RE, Bottari NB, Morsch VM, Schetinger MRC, Stefani LM, Giongo JL, Vaucher RA, Da Silva AS. Listeria monocytogenes impairs enzymes of the phosphotransfer network and alters antioxidant/oxidant status in cattle brain structures. Microb Pathog 2018; 124:284-290. [PMID: 30142467 DOI: 10.1016/j.micpath.2018.08.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 06/29/2018] [Accepted: 08/20/2018] [Indexed: 01/24/2023]
Abstract
Several evidences have suggested the involvement of enzymes belonging to the phosphotransfer network, formed by creatine kinase (CK), pyruvate kinase (PK) and adenylate kinase (AK), as well the oxidative stress on the pathogenesis of infectious diseases associated with the central nervous system (CNS). Thus, the aim of this study was to evaluate whether listeriosis alters the brain energy metabolism and/or causes oxidative stress in different brain structures of cattle experimentally infected by Listeria monocytogenes. The cytosolic CK activity was inhibited in the cerebral cortex, cerebellum, brainstem and hippocampus of infected animals compared to uninfected animals, while the mitochondrial CK activity was increased. The PK activity was inhibited in all brain structures of infected animals, while the AK activity was unchanged. Na+, K+-ATPase activity decreased in the cerebral cortex, cerebellum and hippocampus of animals infected by L. monocytogenes. Regarding the oxidative strees variables, the cerebellum and brainstem of infected animals showed increased thiobarbituric acid reactive substances, while the catalase activity was inhibited. Glutathione S-transferarase was inhibited in the cerebral cortex and brainstem of infected animals, and it was increased in the cerebellum. L. monocytogenes was quantified in the liver (n = 5/5) and cerebral cortex (n = 4/5) of the infected cattle. Based on these evidences, the nucleocytoplasmic communication between CK isoenzymes was insufficient to avoid an impairment of cerebral bioenergetics. Moreover, the inhibition on brain PK activity caused an impairment in the communication between sites of ATP generation and ATP utilization. The lipid peroxidation and alteration on antioxidant status observed in some brain structures were also involved during the disease. In summary, these alterations contribute to disease pathogenesis linked to CNS during cattle listeriosis.
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Affiliation(s)
- Antonise M Jaguezeski
- Graduate Program in Animal Science, Universidade do Estado de Santa Catarina, Chapecó, Santa Catarina, Brazil
| | - Matheus D Baldissera
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Leandro A Rhoden
- Laboratory of Pathology, Instituto Federal Catarinense, Concórdia, Santa Catarina, Brazil
| | - Teane M A Gomes
- Laboratory of Pathology, Instituto Federal Catarinense, Concórdia, Santa Catarina, Brazil
| | - Ricardo E Mendes
- Laboratory of Pathology, Instituto Federal Catarinense, Concórdia, Santa Catarina, Brazil
| | - Nathieli B Bottari
- Graduate Program in Toxicological Biochemistry, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Vera M Morsch
- Graduate Program in Toxicological Biochemistry, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Maria Rosa C Schetinger
- Graduate Program in Toxicological Biochemistry, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Lenita M Stefani
- Graduate Program in Animal Science, Universidade do Estado de Santa Catarina, Chapecó, Santa Catarina, Brazil
| | - Janice L Giongo
- Pharmacy Laboratory, Faculdade Anhanguera, Pelotas, RS, Brazil
| | - Rodrigo A Vaucher
- Laboratory of Biochemistry Research and Molecular Biology of Microorganisms (LaPeBBiOM), Universidade Federal de Pelotas, RS, Brazil
| | - Aleksandro Schafer Da Silva
- Graduate Program in Animal Science, Universidade do Estado de Santa Catarina, Chapecó, Santa Catarina, Brazil; Graduate Program in Toxicological Biochemistry, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
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78
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Abstract
Isoforms of creatine kinase (CK) generate and use phosphocreatine, a concentrated and highly diffusible cellular "high energy" intermediate, for the main purpose of energy buffering and transfer in order to maintain cellular energy homeostasis. The mitochondrial CK isoform (mtCK) localizes to the mitochondrial intermembrane and cristae space, where it assembles into peripherally membrane-bound, large cuboidal homooctamers. These are part of proteolipid complexes wherein mtCK directly interacts with cardiolipin and other anionic phospholipids, as well as with the VDAC channel in the outer membrane. This leads to a stabilization and cross-linking of inner and outer mitochondrial membrane, forming so-called contact sites. Also the adenine nucleotide translocator of the inner membrane can be recruited into these proteolipid complexes, probably mediated by cardiolipin. The complexes have functions mainly in energy transfer to the cytosol and stimulation of oxidative phosphorylation, but also in restraining formation of reactive oxygen species and apoptosis. In vitro evidence indicates a putative role of mtCK in mitochondrial phospholipid distribution, and most recently a role in thermogenesis has been proposed. This review summarizes the essential structural and functional data of these mtCK complexes and describes in more detail the more recent advances in phospholipid interaction, thermogenesis, cancer and evolution of mtCK.
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79
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Baldissera MD, Souza CF, Zeppenfeld CC, Descovi S, da Silva AS, Baldisserotto B. Changes in the cerebral phosphotransfer network impair energetic homeostasis in an aflatoxin B 1-contaminated diet. FISH PHYSIOLOGY AND BIOCHEMISTRY 2018; 44:1051-1059. [PMID: 29546539 DOI: 10.1007/s10695-018-0493-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 03/09/2018] [Indexed: 06/08/2023]
Abstract
The phosphotransfer network system, through the enzymes creatine kinase (CK), adenylate kinase (AK), and pyruvate kinase (PK), contributes to efficient intracellular energetic communication between cellular adenosine triphosphate (ATP) consumption and production in tissues with high energetic demand, such as cerebral tissue. Thus, the aim of this study was to evaluate whether aflatoxin B1 (AFB1) intoxication in diet negatively affects the cerebral phosphotransfer network related to impairment of cerebral ATP levels in silver catfish (Rhamdia quelen). Brain cytosolic CK activity decreased in animals fed with a diet contaminated with AFB1 on days 14 and 21 post-feeding, while mitochondrial CK activity increased, when compared to the control group (basal diet). Also, cerebral AK and PK activity decreased in animals fed with a diet contaminated with AFB1 on days 14 and 21 post-feeding, similarly to the results observed for cerebral ATP levels. Based on this evidence, inhibition of cerebral cytosolic CK activity is compensated by stimulation of mitochondrial CK activity in an attempt to prevent impairment of communication between sites of ATP generation and ATP utilization. The inhibition of cerebral AK and PK activity leads to impairment of cerebral energy homeostasis, decreasing the brain's ATP availability. Moreover, the absence of a reciprocal compensatory mechanism between these enzymes contributes to cerebral energetic imbalance, which may contribute to disease pathophysiology.
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Affiliation(s)
- Matheus D Baldissera
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
| | - Carine F Souza
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Carla Cristina Zeppenfeld
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Sharine Descovi
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Aleksandro S da Silva
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, RS, Brazil
| | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
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80
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Piquereau J, Ventura-Clapier R. Maturation of Cardiac Energy Metabolism During Perinatal Development. Front Physiol 2018; 9:959. [PMID: 30072919 PMCID: PMC6060230 DOI: 10.3389/fphys.2018.00959] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 06/29/2018] [Indexed: 12/26/2022] Open
Abstract
As one of the highest energy consumer organ in mammals, the heart has to be provided with a high amount of energy as soon as its first beats in utero. During the development of this organ, energy is produced within the cardiac muscle cell depending on substrate availability, oxygen pressure and cardiac workload that drastically change at birth. Thus, energy metabolism relying essentially on carbohydrates in fetal heart is very different from the adult one and birth is the trigger of a profound maturation which ensures the transition to a highly oxidative metabolism depending on lipid utilization. To face the substantial increase in cardiac workload resulting from the growth of the organism during the postnatal period, the heart not only develops its capacity for energy production but also undergoes a hypertrophic growth to adapt its contractile capacity to its new function. This leads to a profound cytoarchitectural remodeling of the cardiomyocyte which becomes a highly compartmentalized structure. As a consequence, within the mature cardiac muscle, energy transfer between energy producing and consuming compartments requires organized energy transfer systems that are established in the early postnatal life. This review aims at describing the major rearrangements of energy metabolism during the perinatal development.
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Affiliation(s)
- Jérôme Piquereau
- Signalling and Cardiovascular Pathophysiology - UMR-S 1180, Université Paris-Sud, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Châtenay-Malabry, France
| | - Renée Ventura-Clapier
- Signalling and Cardiovascular Pathophysiology - UMR-S 1180, Université Paris-Sud, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Châtenay-Malabry, France
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81
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Baldissera MD, Müller LKF, Souza CF, Santurio JM, Gloria EM, Machado G, Boiago MM, Paiano D, da Silva AS. Creatine kinase and ATPase activities in piglets fed a fungal mycotoxin co-contaminated diet: Consequences in the pathogenesis of subclinical intoxication. Microb Pathog 2018; 122:13-18. [PMID: 29852206 DOI: 10.1016/j.micpath.2018.05.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/24/2018] [Accepted: 05/27/2018] [Indexed: 12/27/2022]
Abstract
Creatine kinase (CK) activity, through the creatine-kinase-phosphocreatine (CK/PCr) system, provides a temporal and spatial energy buffer to maintain cellular energetic homeostasis, being responsible to provide adenosine triphosphate (ATP) to the proper function of ATPases enzymes, such as the sodium-potassium (Na+, K+-ATPase) and hydrogen (H+-ATPase) pumps. Thus, the aim of this study was to evaluate the involvement of CK/PCr system in the impairment of energetic homeostasis in piglets fed with a diet co-contaminated with mycotoxins, as well as the effects on ATPases enzymes. Animals were randomly divided in two groups (eight repetitions with two animals each): CON (basal diet) and MYC (mycotoxin diet; 9300 μg/kg of aflatoxins and 8000 μg/kg of fumonisins) which were feed during 15 days. Piglets that received a diet containing 300 μg/kg of aflatoxins and 8000 μg/kg of fumonisins (MYC group) presented lower body weight on days 10 and 15 of experiment when compared to control (CON group). Serum CK activity was lower on days 5, 10 and 15 of experiment in the MYC group. The same occurred for serum Na+, K+-ATPase and H+-ATPase activities on days 10 and 15 when compared to CON group. Moreover, serum calcium levels were superior on day 15 of experiment in the MYC group, while serum potassium and sodium levels were lower in comparison to CON group. Based on these evidences, a diet co-contaminated by aflatoxins and fumonisins inhibits serum CK activity, impairing the energetic homeostasis. This inhibition alters the activities of ATPases (Na+, K+-ATPase and H+-ATPase), contributing to the imbalance of Na+, K+ and Ca+ ionic levels. In summary, the cascade of alterations contributes directly to disease pathogenesis of piglets intoxicated by mycotoxins.
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Affiliation(s)
- Matheus D Baldissera
- Post Graduate Program in Pharmacology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil; Department of Microbiology and Parasitology, UFSM, Santa Maria, RS, Brazil
| | - Lucieli K F Müller
- Post Graduate Program in Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil
| | - Carine F Souza
- Department of Microbiology and Parasitology, UFSM, Santa Maria, RS, Brazil
| | - Janio M Santurio
- Department of Microbiology and Parasitology, UFSM, Santa Maria, RS, Brazil
| | | | - Gustavo Machado
- Department of Population Health and Pathobiology, College of Veterinary Medicine North Carolina State University, Raleigh, EUA, United States
| | - Marcel M Boiago
- Post Graduate Program in Pharmacology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Diovani Paiano
- Post Graduate Program in Pharmacology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil.
| | - Aleksandro S da Silva
- Post Graduate Program in Pharmacology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil.
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82
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Baldissera MD, Souza CF, Junior GB, Moreira KLS, da Veiga ML, da Rocha MIUM, Baldisserotto B. Citrobacter freundii impairs the phosphoryl transfer network in the gills of Rhamdia quelen: Impairment of bioenergetics homeostasis. Microb Pathog 2018; 117:157-161. [PMID: 29471134 DOI: 10.1016/j.micpath.2018.02.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 02/16/2018] [Accepted: 02/18/2018] [Indexed: 10/18/2022]
Abstract
The precise coupling of spatially separated intracellular adenosine triphosphate (ATP)-producing and ATP-consuming, catalyzed by creatine kinase (CK), adenylate kinase (AK), and pyruvate kinase (PK), is a critical process in the bioenergetics of tissues with high energy demand, such as the branchial tissue. The effects of Citrobacter freundii infection on gills remain poorly understood, limited only to histopathological studies. Thus, the aim of this study was to evaluate whether experimental infection by C. freundii impairs the enzymes of the phosphoryl transfer network in gills of silver catfish (Rhamdia quelen). The CK (cytosolic and mitochondrial) and AK activities decreased in infected compared to uninfected animals, while the PK activity did not differ between groups. The gill histopathology of infected animals revealed extensive degeneration with fusion and necrosis of secondary lamellae, detachment of superficial epithelium, aneurysm, vessel congestion and inflammatory process. Based on these evidences, the inhibition and absence of an efficient communication between CK compartments caused the impairment of the branchial bioenergetics homeostasis, which was not compensated by the augmentation on branchial AK activity in an attempt to restore energy homeostasis. In summary, these alterations contribute to disease pathogenesis linked to branchial tissue in animals infected with C. freundii.
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Affiliation(s)
- Matheus D Baldissera
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
| | - Carine F Souza
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Guerino B Junior
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Karen Luise S Moreira
- Department of Morphology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Marcelo L da Veiga
- Department of Morphology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | | | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
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83
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Oshima K, Saiki N, Tanaka M, Imamura H, Niwa A, Tanimura A, Nagahashi A, Hirayama A, Okita K, Hotta A, Kitayama S, Osawa M, Kaneko S, Watanabe A, Asaka I, Fujibuchi W, Imai K, Yabe H, Kamachi Y, Hara J, Kojima S, Tomita M, Soga T, Noma T, Nonoyama S, Nakahata T, Saito MK. Human AK2 links intracellular bioenergetic redistribution to the fate of hematopoietic progenitors. Biochem Biophys Res Commun 2018; 497:719-725. [PMID: 29462620 DOI: 10.1016/j.bbrc.2018.02.139] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 02/15/2018] [Indexed: 12/27/2022]
Abstract
AK2 is an adenylate phosphotransferase that localizes at the intermembrane spaces of the mitochondria, and its mutations cause a severe combined immunodeficiency with neutrophil maturation arrest named reticular dysgenesis (RD). Although the dysfunction of hematopoietic stem cells (HSCs) has been implicated, earlier developmental events that affect the fate of HSCs and/or hematopoietic progenitors have not been reported. Here, we used RD-patient-derived induced pluripotent stem cells (iPSCs) as a model of AK2-deficient human cells. Hematopoietic differentiation from RD-iPSCs was profoundly impaired. RD-iPSC-derived hemoangiogenic progenitor cells (HAPCs) showed decreased ATP distribution in the nucleus and altered global transcriptional profiles. Thus, AK2 has a stage-specific role in maintaining the ATP supply to the nucleus during hematopoietic differentiation, which affects the transcriptional profiles necessary for controlling the fate of multipotential HAPCs. Our data suggest that maintaining the appropriate energy level of each organelle by the intracellular redistribution of ATP is important for controlling the fate of progenitor cells.
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Affiliation(s)
- Koichi Oshima
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Norikazu Saiki
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Michihiro Tanaka
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Hiromi Imamura
- The Hakubi Center for Advanced Research, Kyoto University, Kyoto, Kyoto, 6068501, Japan
| | - Akira Niwa
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Ayako Tanimura
- Department of Molecular Biology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Tokushima, 7708505, Japan
| | - Ayako Nagahashi
- Department of Fundamental Cell Technology, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Akiyoshi Hirayama
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, 9970052, Japan
| | - Keisuke Okita
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Akitsu Hotta
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Shuichi Kitayama
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Mitsujiro Osawa
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Shin Kaneko
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Akira Watanabe
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Isao Asaka
- Department of Fundamental Cell Technology, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Wataru Fujibuchi
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Kohsuke Imai
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Tokyo Medical and Dental University, Tokyo, Tokyo, 1130034, Japan
| | - Hiromasa Yabe
- Specialized Clinical Science, Pediatrics, Tokai University School of Medicine, Isehara, Kanagawa, 2591193, Japan
| | - Yoshiro Kamachi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Nagoya, 4668550, Japan
| | - Junichi Hara
- Department of Pediatric Hematology/Oncology, Children's Medical Center, Osaka City General Hospital, Osaka, Osaka, 5340021, Japan
| | - Seiji Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Nagoya, 4668550, Japan
| | - Masaru Tomita
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, 9970052, Japan
| | - Tomoyoshi Soga
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, 9970052, Japan
| | - Takafumi Noma
- Department of Molecular Biology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Tokushima, 7708505, Japan
| | - Shigeaki Nonoyama
- Department of Pediatrics, National Defense Medical College, Tokorozawa, Saitama, 3590042, Japan
| | - Tatsutoshi Nakahata
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan
| | - Megumu K Saito
- Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Kyoto, 6068507, Japan.
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84
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Hoenig M, Pannicke U, Gaspar HB, Schwarz K. Recent advances in understanding the pathogenesis and management of reticular dysgenesis. Br J Haematol 2017; 180:644-653. [PMID: 29270983 DOI: 10.1111/bjh.15045] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Reticular Dysgenesis is a rare immunodeficiency which is clinically characterized by the combination of Severe Combined Immunodeficiency (SCID) with agranulocytosis and sensorineural deafness. Mutations in the gene encoding adenylate kinase 2 (AK2) were identified to cause this phenotype. In this review, we will demonstrate important clinical differences between reticular dysgenesis and other SCID entities and summarize recent concepts in the understanding of the pathophysiology of the disease and the management strategies for this difficult condition.
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Affiliation(s)
- Manfred Hoenig
- Department of Paediatrics, University Medical Centre Ulm, Ulm, Germany
| | - Ulrich Pannicke
- Institute for Transfusion Medicine, University of Ulm, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Service Baden-Wuerttemberg, Hessen, Germany
| | - Hubert B Gaspar
- UCL Great Ormond Street Institute of Child Health and Great Ormond Street Hospital for Children NHS Trust, London, UK
| | - Klaus Schwarz
- Institute for Transfusion Medicine, University of Ulm, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Service Baden-Wuerttemberg, Hessen, Germany
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85
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Ichthyophthirius multifiliis impairs splenic enzymes of the phosphoryl transfer network in naturally infected Rhamdia quelen: effects on energetic homeostasis. Parasitol Res 2017; 117:413-418. [PMID: 29247443 DOI: 10.1007/s00436-017-5715-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 12/08/2017] [Indexed: 10/18/2022]
Abstract
Its integrated energetic and metabolic signaling roles place the phosphoryl transfer network, through the enzymes creatine kinase (CK), adenylate kinase (AK), and pyruvate kinase (PK), as a regulatory system coordinating components of the cellular bioenergetics network. Analysis of these enzymes provides new information and perspectives with which to understand disturbances in energetic metabolism between sites of adenosine triphosphate (ATP) generation and utilization. Thus, the aim of this study was to evaluate the involvement of the phosphoryl transfer network in splenic tissue linked with the pathogenesis of silver catfish naturally infected with Ichthyophthirius multifiliis. Splenic cytosolic and mitochondrial CK activities decreased in infected animals compared to uninfected animals, as was also observed for splenic PK activity and splenic ATP levels. In contrast, splenic AK activity increased in infected animals compared to uninfected animals. Based on this evidence, the inhibition and absence of efficient communication between CK isoenzymes cause the impairment of splenic bioenergetics, which is in turn compensated by the augmentation of splenic AK activity in an attempt to restore energy homeostasis. The inhibition of splenic PK activity impairs communication between sites of ATP generation and ATP utilization, as corroborated by splenic ATP depletion. In summary, these alterations contribute to disease pathogenesis linked to spleen tissue in animals infected with white spot disease.
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86
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Rech VC, Mezzomo NJ, Athaydes GA, Feksa LR, Figueiredo VC, Kessler A, Franceschi IDDE, Wannmacher CMD. Thiol/disulfide status regulates the activity of thiol-containing kinases related to energy homeostasis in rat kidney. AN ACAD BRAS CIENC 2017; 90:99-108. [PMID: 29236866 DOI: 10.1590/0001-3765201720160348] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 08/08/2016] [Indexed: 11/21/2022] Open
Abstract
Considering that thiol-containing enzymes like kinases are critical for several metabolic pathways and energy homeostasis, we investigated the effects of cystine dimethyl ester and/or cysteamine administration on kinases crucial for energy metabolism in the kidney of Wistar rats. Animals were injected twice a day with 1.6 µmol/g body weight cystine dimethyl ester and/or 0.26 µmol/g body weight cysteamine from the 16th to the 20th postpartum day and euthanized after 12 hours. Pyruvate kinase, adenylate kinase, creatine kinase activities and thiol/disulfide ratio were determined. Cystine dimethyl ester administration reduced thiol/disulfide ratio and inhibited the kinases activities. Cysteamine administration increased the thiol/disulfide ratio and co-administration with cystine dimethyl ester prevented the inhibition of the enzymes. Regression between the thiol/disulfide ratio, and the kinases activities were significant. These results suggest that redox status may regulate energy metabolism in the rat kidney. If thiol-containing enzymes inhibition and oxidative stress occur in patients with cystinosis, it is possible that lysosomal cystine depletion may not be the only beneficial effect of cysteamine administration, but also its antioxidant and thiol-protector effect.
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Affiliation(s)
- Virginia C Rech
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil.,Programa de Pós-Graduação em Nanociências, Laboratório de Nanotecnologia, Centro Universitário Franciscano, Rua dos Andradas, 1614, 97010-032 Santa Maria, RS, Brazil
| | - Nathana J Mezzomo
- Programa de Pós-Graduação em Nanociências, Laboratório de Nanotecnologia, Centro Universitário Franciscano, Rua dos Andradas, 1614, 97010-032 Santa Maria, RS, Brazil
| | - Genaro A Athaydes
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil
| | - Luciane R Feksa
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil.,Instituto de Ciências da Saúde, Universidade Feevale, ERS-239, 2755, 93525-075 Novo Hamburgo, RS, Brazil
| | - Vandré C Figueiredo
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil
| | - Adriana Kessler
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil.,Faculdade de Enfermagem, Nutrição e Fisioterapia, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga, 6681, Prédio 12, Partenon, 90619-900 Porto Alegre, RS, Brazil
| | - Itiane D DE Franceschi
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil
| | - Clovis M D Wannmacher
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil
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87
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Abdurrachim D, Prompers JJ. Evaluation of cardiac energetics by non-invasive 31P magnetic resonance spectroscopy. Biochim Biophys Acta Mol Basis Dis 2017; 1864:1939-1948. [PMID: 29175056 DOI: 10.1016/j.bbadis.2017.11.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 11/17/2017] [Accepted: 11/18/2017] [Indexed: 01/10/2023]
Abstract
Alterations in myocardial energy metabolism have been implicated in the pathophysiology of cardiac diseases such as heart failure and diabetic cardiomyopathy. 31P magnetic resonance spectroscopy (MRS) is a powerful tool to investigate cardiac energetics non-invasively in vivo, by detecting phosphorus (31P)-containing metabolites involved in energy supply and buffering. In this article, we review the historical development of cardiac 31P MRS, the readouts used to assess cardiac energetics from 31P MRS, and how 31P MRS studies have contributed to the understanding of cardiac energy metabolism in heart failure and diabetes. This article is part of a Special issue entitled Cardiac adaptations to obesity, diabetes and insulin resistance, edited by Professors Jan F.C. Glatz, Jason R.B. Dyck and Christine Des Rosiers.
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Affiliation(s)
- Desiree Abdurrachim
- Biomedical NMR, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands; Functional Metabolism Group, Singapore Bioimaging Consortium, Agency for Science, Technology and Research, Singapore
| | - Jeanine J Prompers
- Biomedical NMR, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands; Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands.
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88
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A genome-wide structure-based survey of nucleotide binding proteins in M. tuberculosis. Sci Rep 2017; 7:12489. [PMID: 28970579 PMCID: PMC5624866 DOI: 10.1038/s41598-017-12471-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 09/04/2017] [Indexed: 01/09/2023] Open
Abstract
Nucleoside tri-phosphates (NTP) form an important class of small molecule ligands that participate in, and are essential to a large number of biological processes. Here, we seek to identify the NTP binding proteome (NTPome) in M. tuberculosis (M.tb), a deadly pathogen. Identifying the NTPome is useful not only for gaining functional insights of the individual proteins but also for identifying useful drug targets. From an earlier study, we had structural models of M.tb at a proteome scale from which a set of 13,858 small molecule binding pockets were identified. We use a set of NTP binding sub-structural motifs derived from a previous study and scan the M.tb pocketome, and find that 1,768 proteins or 43% of the proteome can theoretically bind NTP ligands. Using an experimental proteomics approach involving dye-ligand affinity chromatography, we confirm NTP binding to 47 different proteins, of which 4 are hypothetical proteins. Our analysis also provides the precise list of binding site residues in each case, and the probable ligand binding pose. As the list includes a number of known and potential drug targets, the identification of NTP binding can directly facilitate structure-based drug design of these targets.
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89
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Lebda MA, Sadek KM, El-Sayed YS. Aspartame and Soft Drink-Mediated Neurotoxicity in Rats: Implication of Oxidative Stress, Apoptotic Signaling Pathways, Electrolytes and Hormonal Levels. Metab Brain Dis 2017; 32:1639-1647. [PMID: 28660358 DOI: 10.1007/s11011-017-0052-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 06/16/2017] [Indexed: 01/06/2023]
Abstract
A significant association between fructose corn syrup in sweetened beverages consumption and increased risk of detrimental central nervous system effects has been recently reported. We hypothesized that the aspartame and soft drink induced disturbances in energy production and endocrine function, which play a role in the induction of brain damage. Therefore, we aimed to assess the effect of aspartame and soft drink on brain function and the link between energy status in the brain, oxidative stress and molecular pathways of apoptosis. Thirty rats were randomly assigned to drink water, aspartame (240 mg/kg orally) and cola soft drinks (free access) daily for two months. Subchronic intake of aspartame and soft drink significantly disrupted the brain energy production, as indicated by inhibited serum and brain creatine kinase, specifically in soft drink-received rats. Moreover, they substantially altered serum electrolytes (increased Ca and Na, and depleted Cu, Fe, Zn and K levels), and accordingly the related hormonal status (increased T4 and PTH, and lowered T3 and aldosterone levels), particularly in soft drink-received rats reflecting brain damage. Additionally, significant increment of acetylcholine esterase activity concomitant with the reduction of antioxidant molecules (SOD, CAT, GSH-Px and GSH), and induction of malondialdehyde level are precisely indicative of oxidative brain damage. Brain mRNA transcripts of target genes showed that aspartame and soft drink induced upregulation of BAX, Casp3, P27 and Mdm2 (1.5-fold) and down-regulation of Bcl2, suggesting an activation of cellular apoptosis. Collectively, subchronic aspartame and soft drink-induced brain damage in rats may be driven via a mechanism that involves energy production disruption, electrolytes and hormonal imbalance, increased oxidative stress and activation of molecular pathway of neuronal apoptosis.
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Affiliation(s)
- Mohamed A Lebda
- Department of Biochemistry, Faculty of Veterinary Medicine, Alexandria University, Edfina, 22758, Egypt
| | - Kadry M Sadek
- Department of Biochemistry, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, Egypt
| | - Yasser S El-Sayed
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, Egypt.
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90
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Gemelli T, de Andrade RB, Rojas DB, Zanatta Â, Schirmbeck GH, Funchal C, Wajner M, Dutra-Filho CS, Wannmacher CMD. Chronic Exposure to β-Alanine Generates Oxidative Stress and Alters Energy Metabolism in Cerebral Cortex and Cerebellum of Wistar Rats. Mol Neurobiol 2017; 55:5101-5110. [DOI: 10.1007/s12035-017-0711-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 08/07/2017] [Indexed: 01/03/2023]
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91
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Baldissera MD, Souza CF, Júnior GB, Verdi CM, Moreira KLS, da Rocha MIUM, da Veiga ML, Santos RCV, Vizzotto BS, Baldisserotto B. Aeromonas caviae alters the cytosolic and mitochondrial creatine kinase activities in experimentally infected silver catfish: Impairment on renal bioenergetics. Microb Pathog 2017; 110:439-443. [PMID: 28735082 DOI: 10.1016/j.micpath.2017.07.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 07/17/2017] [Accepted: 07/17/2017] [Indexed: 01/01/2023]
Abstract
Cytosolic and mitochondrial creatine kinases (CK), through the creatine kinase-phosphocreatine (CK/PCr) system, provide a temporal and spatial energy buffer to maintain cellular energy homeostasis. However, the effects of bacterial infections on the kidney remain poorly understood and are limited only to histopathological analyses. Thus, the aim of this study was to investigate the involvement of cytosolic and mitochondrial CK activities in renal energetic homeostasis in silver catfish experimentally infected with Aeromonas caviae. Cytosolic CK activity decreased in infected animals, while mitochondrial CK activity increased compared to uninfected animals. Moreover, the activity of the sodium-potassium pump (Na+, K+-ATPase) decreased in infected animals compared to uninfected animals. Based on this evidence, it can be concluded that the inhibition of cytosolic CK activity by A. caviae causes an impairment on renal energy homeostasis through the depletion of adenosine triphosphate (ATP) levels. This contributes to the inhibition of Na+, K+-ATPase activity, although the mitochondrial CK activity acted in an attempt to restore the cytosolic ATP levels through a feedback mechanism. In summary, A. caviae infection causes a severe energetic imbalance in infected silver catfish, which may contribute to disease pathogenesis.
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Affiliation(s)
- Matheus D Baldissera
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
| | - Carine F Souza
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Guerino B Júnior
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Camila Marina Verdi
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Karen L S Moreira
- Department of Morphology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | | | - Marcelo L da Veiga
- Department of Morphology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Roberto C V Santos
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Bruno S Vizzotto
- Laboratory of Molecular Biology, Centro Universitário Franciscano, Santa Maria, RS, Brazil
| | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
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92
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Yen CH, Wang KT, Lee PY, Liu CC, Hsieh YC, Kuo JY, Bulwer BE, Hung CL, Chang SC, Shih SC, Hu KC, Yeh HI, Lam CSP. Gender-differences in the associations between circulating creatine kinase, blood pressure, body mass and non-alcoholic fatty liver disease in asymptomatic asians. PLoS One 2017; 12:e0179898. [PMID: 28665956 PMCID: PMC5493338 DOI: 10.1371/journal.pone.0179898] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Accepted: 04/25/2017] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Creatine kinase (CK) is a pivotal regulatory enzyme in energy metabolism linked to both blood pressure and cardio-metabolic components. However, data is lacking in a large population of asymptomatic Asians. METHODS AND RESULTS Cardio-metabolic assessment including anthropometric measures and non-alcoholic fatty liver disease (NAFLD) were evaluated by abdominal echo in 4,562 consecutive subjects who underwent an annual health survey. Serum CK levels were related to blood pressure components [systolic blood pressure (SBP), diastolic blood pressure (DBP), and pulse pressure (PP)], anthropometric measures, and excessive adiposity in liver as indicated by NAFLD. Circulating CK levels ranged from 4 to 1842 IU/L (mean [SE]: 108.7 [1.1] IU/L) in the study population which consisted of 2522 males (mean age: 48.7 ± 11.2) and 2040 females (mean age: 49.4±11.5). In general, male subjects presented with higher circulating CK levels than females (mean ± SE: 127.3 ± 1.5 vs. 85.5 ± 1.3 IU/L, respectively, p < .001). Gender-differences in circulating CK levels were also observed with increasing age, which showed a more pronounced positive relationship with age in female subjects (gender interaction: p < .05). Furthermore, an elevated circulating CK level was independently associated with higher blood pressure, waist circumference and fat mass (FM), greater body mass index (BMI), increased lower estimated glomerular filtration rate (eGFR) and presence of NAFLD in multivariate analysis (all p < .05), with CK elevation more pronounced with greater BMI and FM in males compared with females (sex interaction: p < .05). CONCLUSION In a large asymptomatic Asian population, circulating CK levels were increased with more advanced age, higher blood pressure, and greater body mass with gender differences. Our findings may be useful in interpreting elevated CK from subjects free of ongoing myocardial damage.
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Affiliation(s)
- Chih-Hsuan Yen
- Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
- Mackay Medicine, Nursing and Management College and Taipei Medical University, Taipei, Taiwan
| | - Kuang-Te Wang
- Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taitung branch, Taiwan
| | - Ping-Ying Lee
- Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
- Mackay Medicine, Nursing and Management College and Taipei Medical University, Taipei, Taiwan
- Mackay Medical College, New Taipei County, Taiwan
| | - Chuan-Chuan Liu
- Mackay Medical College, New Taipei County, Taiwan
- Graduate Institute of Health Care Organization Administration, College of Public Health National Taiwan University, Taipei, Taiwan
- Health Evaluation Center, Mackay Memorial Hospital, Taipei, Taiwan
- Department of Medical Technology, Yuanpei University of Science and Technology, Hsin-Chu, Taiwan
| | - Ya-Ching Hsieh
- Department of Anesthesiology, Peking University First Hospital, Beijing, China
| | - Jen-Yuan Kuo
- Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
- Mackay Medicine, Nursing and Management College and Taipei Medical University, Taipei, Taiwan
- Mackay Medical College, New Taipei County, Taiwan
| | - Bernard E. Bulwer
- Nonivasive Cardiology, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
- Massachusetts College of Pharmacy and Health Sciences, Boston, Massachusetts, United States of America
| | - Chung-Lieh Hung
- Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
- Mackay Medicine, Nursing and Management College and Taipei Medical University, Taipei, Taiwan
- Mackay Medical College, New Taipei County, Taiwan
- * E-mail:
| | | | - Shou-Chuan Shih
- Division of Gastroenterology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
| | - Kuang-Chun Hu
- Division of Gastroenterology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
| | - Hung-I Yeh
- Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
- Mackay Medical College, New Taipei County, Taiwan
| | - Carolyn S. P. Lam
- National Heart Centre Singapore and Duke-National University of Singapore Medical School, Singapore, Singapore
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93
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Peterzan MA, Lygate CA, Neubauer S, Rider OJ. Metabolic remodeling in hypertrophied and failing myocardium: a review. Am J Physiol Heart Circ Physiol 2017. [PMID: 28646030 DOI: 10.1152/ajpheart.00731.2016] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The energy starvation hypothesis proposes that maladaptive metabolic remodeling antedates, initiates, and maintains adverse contractile dysfunction in heart failure (HF). Better understanding of the cardiac metabolic phenotype and metabolic signaling could help identify the role metabolic remodeling plays within HF and the conditions known to transition toward HF, including "pathological" hypertrophy. In this review, we discuss metabolic phenotype and metabolic signaling in the contexts of pathological hypertrophy and HF. We discuss the significance of alterations in energy supply (substrate utilization, oxidative capacity, and phosphotransfer) and energy sensing using observations from human and animal disease models and models of manipulated energy supply/sensing. We aim to provide ways of thinking about metabolic remodeling that center around metabolic flexibility, capacity (reserve), and efficiency rather than around particular substrate preferences or transcriptomic profiles. We show that maladaptive metabolic remodeling takes multiple forms across multiple energy-handling domains. We suggest that lack of metabolic flexibility and reserve (substrate, oxidative, and phosphotransfer) represents a final common denominator ultimately compromising efficiency and contractile reserve in stressful contexts.
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Affiliation(s)
- Mark A Peterzan
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Craig A Lygate
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Stefan Neubauer
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Oliver J Rider
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
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94
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Neuroprotective Effect of Creatine and Pyruvate on Enzyme Activities of Phosphoryl Transfer Network and Oxidative Stress Alterations Caused by Leucine Administration in Wistar Rats. Neurotox Res 2017; 32:575-584. [DOI: 10.1007/s12640-017-9762-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 05/22/2017] [Accepted: 05/26/2017] [Indexed: 01/25/2023]
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95
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Biasibetti-Brendler H, Schmitz F, Pierozan P, Zanotto BS, Prezzi CA, de Andrade RB, Wannmacher CMD, Wyse ATS. Hypoxanthine Induces Neuroenergetic Impairment and Cell Death in Striatum of Young Adult Wistar Rats. Mol Neurobiol 2017; 55:4098-4106. [PMID: 28593435 DOI: 10.1007/s12035-017-0634-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 05/22/2017] [Indexed: 12/18/2022]
Abstract
Hypoxanthine is the major purine involved in the salvage pathway of purines in the brain. High levels of hypoxanthine are characteristic of Lesch-Nyhan Disease. Since hypoxanthine is a purine closely related to ATP formation, the aim of this study was to investigate the effect of intrastriatal hypoxanthine administration on neuroenergetic parameters (pyruvate kinase, succinate dehydrogenase, complex II, cytochrome c oxidase, and ATP levels) and mitochondrial function (mitochondrial mass and membrane potential) in striatum of rats. We also evaluated the effect of cell death parameters (necrosis and apoptosis). Wistar rats of 60 days of life underwent stereotactic surgery and were divided into two groups: control (infusion of saline 0.9%) and hypoxanthine (10 μM). Intrastriatal hypoxanthine administration did not alter pyruvate kinase activity, but increased succinate dehydrogenase and complex II activities and diminished cytochrome c oxidase activity and immunocontent. Hypoxanthine injection decreased the percentage of cells with mitochondrial membrane label and increased mitochondrial membrane potential labeling. There was a decrease in the number of live cells and an increase in the number of apoptotic cells by caused hypoxanthine. Our findings show that intrastriatal hypoxanthine administration altered neuroenergetic parameters, and caused mitochondrial dysfunction and cell death by apoptosis, suggesting that these processes may be associated, at least in part, with neurological symptoms found in patients with Lesch-Nyhan Disease.
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Affiliation(s)
- Helena Biasibetti-Brendler
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil.,Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Felipe Schmitz
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil.,Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Paula Pierozan
- Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Bruna S Zanotto
- Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Caroline A Prezzi
- Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Rodrigo Binkowski de Andrade
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Clovis M D Wannmacher
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil.,Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Angela T S Wyse
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil. .,Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil. .,Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil.
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96
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A Possible Anti-Inflammatory Effect of Proline in the Brain Cortex and Cerebellum of Rats. Mol Neurobiol 2017; 55:4068-4077. [PMID: 28585188 DOI: 10.1007/s12035-017-0626-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 05/19/2017] [Indexed: 12/15/2022]
Abstract
Although many studies show the toxic effects of proline, recently it has been reported some anti-inflammatory effect of this amino acid. Our principal objective was to investigate the effects of proline on the alterations caused by LPS (lipopolysaccharide) administration in the cerebral cortex and cerebellum of young Wistar rats. The animals were divided into four groups: control (0.85% saline); proline, (12.8 μmol of proline/g body weight from day 7 to 13; 14.6 μmol of proline/g body weight from day 14 to 17 and 16.4 μmol of proline/g body weight from day 18 to 21); LPS (1 mg/g body weight); LPS plus proline. The animals were killed at 22 days of age, 12 h after the last injection, by decapitation without anesthesia. The brain cortex and cerebellum were separated for chemical determinations. The effects of proline and LPS in the cerebral cortex and cerebellum on the expression of S100B and GFAP, oxidative stress parameters, enzymes of phosphoryl transfer network activity, and mitochondrial respiration chain complexes were investigated. Two-way ANOVA showed that the administration of proline did not alter the analyzed parameter in cerebral cortex and cerebellum. On the other hand, LPS administration caused a change in these parameters. Besides, the co-administration of proline and LPS showed the ability of Pro in preventing the effects of LPS. These results indicated that LPS induces inflammation, oxidative stress, and alters energy parameters in cerebral cortex and cerebellum of the rats. Moreover, co-administration of Pro was able to prevent these harmful effects of LPS.
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97
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Ounpuu L, Klepinin A, Pook M, Teino I, Peet N, Paju K, Tepp K, Chekulayev V, Shevchuk I, Koks S, Maimets T, Kaambre T. 2102Ep embryonal carcinoma cells have compromised respiration and shifted bioenergetic profile distinct from H9 human embryonic stem cells. Biochim Biophys Acta Gen Subj 2017; 1861:2146-2154. [PMID: 28552560 DOI: 10.1016/j.bbagen.2017.05.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 05/17/2017] [Accepted: 05/23/2017] [Indexed: 02/07/2023]
Abstract
Recent studies have shown that cellular bioenergetics may be involved in stem cell differentiation. Considering that during cancerogenesis cells acquire numerous properties of stem cells, it is possible to assume that the energy metabolism in tumorigenic cells might be differently regulated. The aim of this study was to compare the mitochondrial bioenergetic profile of normal pluripotent human embryonic stem cells (hESC) and relatively nullipotent embryonal carcinoma cells (2102Ep cell line). We examined three parameters related to cellular bioenergetics: phosphotransfer system, aerobic glycolysis, and oxygen consumption. Activities and expression levels of main enzymes that facilitate energy transfer were measured. The oxygen consumption rate studies were performed to investigate the respiratory capacity of cells. 2102Ep cells showed a shift in energy distribution towards adenylate kinase network. The total AK activity was almost 3 times higher in 2102Ep cells compared to hESCs (179.85±5.73 vs 64.39±2.55mU/mg of protein) and the expression of AK2 was significantly higher in these cells, while CK was downregulated. 2102Ep cells displayed reduced levels of oxygen consumption and increased levels of aerobic glycolysis compared to hESCs. The compromised respiration of 2102Ep cells is not the result of increased mitochondrial mass, increased proton leak, and reduced respiratory reserve capacity of the cells or impairment of respiratory chain complexes. Our data showed that the bioenergetic profile of 2102Ep cells clearly distinguishes them from normal hESCs. This should be considered when this cell line is used as a reference, and highlight the importance of further research concerning energy metabolism of stem cells.
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Affiliation(s)
- Lyudmila Ounpuu
- Laboratory of Bioenergetics, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - Aleksandr Klepinin
- Laboratory of Bioenergetics, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - Martin Pook
- Department of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia
| | - Indrek Teino
- Department of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia
| | - Nadezda Peet
- Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411 Tartu, Estonia
| | - Kalju Paju
- Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 19, 50411 Tartu, Estonia
| | - Kersti Tepp
- Laboratory of Bioenergetics, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - Vladimir Chekulayev
- Laboratory of Bioenergetics, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - Igor Shevchuk
- Laboratory of Bioenergetics, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - Sulev Koks
- Department of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia
| | - Toivo Maimets
- Department of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia
| | - Tuuli Kaambre
- Tallinn University, Narva mnt 25, 10120 Tallinn, Estonia; Laboratory of Bioenergetics, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
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98
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Gupta A, Houston B. A comprehensive review of the bioenergetics of fatty acid and glucose metabolism in the healthy and failing heart in nondiabetic condition. Heart Fail Rev 2017; 22:825-842. [DOI: 10.1007/s10741-017-9623-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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99
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Zala D, Schlattner U, Desvignes T, Bobe J, Roux A, Chavrier P, Boissan M. The advantage of channeling nucleotides for very processive functions. F1000Res 2017; 6:724. [PMID: 28663786 PMCID: PMC5473427 DOI: 10.12688/f1000research.11561.2] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/17/2017] [Indexed: 12/26/2022] Open
Abstract
Nucleoside triphosphate (NTP)s, like ATP (adenosine 5'-triphosphate) and GTP (guanosine 5'-triphosphate), have long been considered sufficiently concentrated and diffusible to fuel all cellular ATPases (adenosine triphosphatases) and GTPases (guanosine triphosphatases) in an energetically healthy cell without becoming limiting for function. However, increasing evidence for the importance of local ATP and GTP pools, synthesised in close proximity to ATP- or GTP-consuming reactions, has fundamentally challenged our view of energy metabolism. It has become evident that cellular energy metabolism occurs in many specialised 'microcompartments', where energy in the form of NTPs is transferred preferentially from NTP-generating modules directly to NTP-consuming modules. Such energy channeling occurs when diffusion through the cytosol is limited, where these modules are physically close and, in particular, if the NTP-consuming reaction has a very high turnover, i.e. is very processive. Here, we summarise the evidence for these conclusions and describe new insights into the physiological importance and molecular mechanisms of energy channeling gained from recent studies. In particular, we describe the role of glycolytic enzymes for axonal vesicle transport and nucleoside diphosphate kinases for the functions of dynamins and dynamin-related GTPases.
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Affiliation(s)
- Diana Zala
- ESPCI - Paris, PSL Research University, Paris, F-75005, France.,CNRS, UMR8249, Paris, F-75005, France
| | - Uwe Schlattner
- Laboratory of Fundamental and Applied Bioenergetics (LBFA), and SFR Environmental and Systems Biology (BEeSy), U1055, University Grenoble Alpes, Grenoble, 38058, France.,Inserm-U1055, Grenoble, F-38058, France
| | - Thomas Desvignes
- Institute of Neuroscience, University of Oregon, Eugene, OR, 97401, USA
| | - Julien Bobe
- INRA, UR1037 LPGP, Campus de Beaulieu, Rennes, F-35000, France
| | - Aurélien Roux
- Department of Biochemistry, University of Geneva, Geneva, CH-1211, Switzerland.,Swiss National Centre for Competence in Research Programme Chemical Biology, Geneva, CH-1211, Switzerland
| | - Philippe Chavrier
- Institut Curie, Paris, F-75248, France.,PSL Research University, Paris, F-75005, France.,CNRS, UMR144, Paris, F-75248, France
| | - Mathieu Boissan
- Sorbonne Universités, UPMC Univ Paris 06, INSERM, UMRS938, Saint-Antoine Research Center, Paris, F-75012, France.,AP-HP, Hospital Tenon, Service de Biochimie et Hormonologie, Paris, F-75020, France
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Zala D, Schlattner U, Desvignes T, Bobe J, Roux A, Chavrier P, Boissan M. The advantage of channeling nucleotides for very processive functions. F1000Res 2017; 6:724. [PMID: 28663786 DOI: 10.12688/f1000research.11561.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/15/2017] [Indexed: 01/01/2023] Open
Abstract
Nucleoside triphosphate (NTP)s, like ATP (adenosine 5'-triphosphate) and GTP (guanosine 5'-triphosphate), have long been considered sufficiently concentrated and diffusible to fuel all cellular ATPases (adenosine triphosphatases) and GTPases (guanosine triphosphatases) in an energetically healthy cell without becoming limiting for function. However, increasing evidence for the importance of local ATP and GTP pools, synthesised in close proximity to ATP- or GTP-consuming reactions, has fundamentally challenged our view of energy metabolism. It has become evident that cellular energy metabolism occurs in many specialised 'microcompartments', where energy in the form of NTPs is transferred preferentially from NTP-generating modules directly to NTP-consuming modules. Such energy channeling occurs when diffusion through the cytosol is limited, where these modules are physically close and, in particular, if the NTP-consuming reaction has a very high turnover, i.e. is very processive. Here, we summarise the evidence for these conclusions and describe new insights into the physiological importance and molecular mechanisms of energy channeling gained from recent studies. In particular, we describe the role of glycolytic enzymes for axonal vesicle transport and nucleoside diphosphate kinases for the functions of dynamins and dynamin-related GTPases.
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Affiliation(s)
- Diana Zala
- ESPCI - Paris, PSL Research University, Paris, F-75005, France.,CNRS, UMR8249, Paris, F-75005, France
| | - Uwe Schlattner
- Laboratory of Fundamental and Applied Bioenergetics (LBFA), and SFR Environmental and Systems Biology (BEeSy), U1055, University Grenoble Alpes, Grenoble, 38058, France.,Inserm-U1055, Grenoble, F-38058, France
| | - Thomas Desvignes
- Institute of Neuroscience, University of Oregon, Eugene, OR, 97401, USA
| | - Julien Bobe
- INRA, UR1037 LPGP, Campus de Beaulieu, Rennes, F-35000, France
| | - Aurélien Roux
- Department of Biochemistry, University of Geneva, Geneva, CH-1211, Switzerland.,Swiss National Centre for Competence in Research Programme Chemical Biology, Geneva, CH-1211, Switzerland
| | - Philippe Chavrier
- Institut Curie, Paris, F-75248, France.,PSL Research University, Paris, F-75005, France.,CNRS, UMR144, Paris, F-75248, France
| | - Mathieu Boissan
- Sorbonne Universités, UPMC Univ Paris 06, INSERM, UMRS938, Saint-Antoine Research Center, Paris, F-75012, France.,AP-HP, Hospital Tenon, Service de Biochimie et Hormonologie, Paris, F-75020, France
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