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Bernardini A, Brockmeier U, Metzen E, Berchner-Pfannschmidt U, Harde E, Acker-Palmer A, Papkovsky D, Acker H, Fandrey J. Type I cell ROS kinetics under hypoxia in the intact mouse carotid body ex vivo: a FRET-based study. Am J Physiol Cell Physiol 2014; 308:C61-7. [PMID: 25318107 DOI: 10.1152/ajpcell.00370.2013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Reactive oxygen species (ROS) mainly originating from NADPH oxidases have been shown to be involved in the carotid body (CB) oxygen-sensing cascade. For measuring ROS kinetics, type I cells of the mouse CB in an ex vivo preparation were transfected with the ROS sensor construct FRET-HSP33. After 2 days of tissue culture, type I cells expressed FRET-HSP33 as shown by immunohistochemistry. In one population of CBs, 5 min of hypoxia induced a significant and reversible decrease of type I cell ROS levels (n = 9 CBs; P < 0.015), which could be inhibited by 4-(2-aminoethyl)benzensulfonylfluorid (AEBSF), a highly specific inhibitor of the NADPH oxidase subunits p47(phox) and p67(phox). In another population of CBs, however, 5 min of hypoxia induced a significant and reversible increase of ROS levels in type I cells (n = 8 CBs; P < 0.05), which was slightly enhanced by administration of 3 mM AEBSF. These different ROS kinetics seemed to coincide with different mice breeding conditions. Type I cells of both populations showed a typical hypoxia-induced membrane potential (MP) depolarization, which could be inhibited by 3 mM AEBSF. ROS and MP closely followed the hypoxic decrease in CB tissue oxygen as measured with an O2-sensitive dye. We conclude that attenuated p47(phox) subunit activity of the NADPH oxidase under hypoxia is the physiological trigger for type I cell MP depolarization probably due to ROS decrease, whereas the observed ROS increase has no influence on type I cell MP kinetics under hypoxia.
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Affiliation(s)
- A Bernardini
- Institute of Physiology, University of Duisburg-Essen, Essen, Germany
| | - U Brockmeier
- Institute of Physiology, University of Duisburg-Essen, Essen, Germany
| | - E Metzen
- Institute of Physiology, University of Duisburg-Essen, Essen, Germany
| | | | - E Harde
- Institute for Cell Biology and Neuroscience and Buchmann Institute for Molecular Life Sciences, Goethe University, Frankfurt, Germany; and
| | - A Acker-Palmer
- Institute for Cell Biology and Neuroscience and Buchmann Institute for Molecular Life Sciences, Goethe University, Frankfurt, Germany; and
| | - D Papkovsky
- Biochemistry Department, University College Cork, Cork, Ireland
| | - H Acker
- Institute of Physiology, University of Duisburg-Essen, Essen, Germany;
| | - J Fandrey
- Institute of Physiology, University of Duisburg-Essen, Essen, Germany
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Zór K, Heiskanen A, Caviglia C, Vergani M, Landini E, Shah F, Carminati M, Martínez-Serrano A, Moreno TR, Kokaia M, Benayahu D, Keresztes Z, Papkovsky D, Wollenberger U, Svendsen WE, Dimaki M, Ferrari G, Raiteri R, Sampietro M, Dufva M, Emnéus J. A compact multifunctional microfluidic platform for exploring cellular dynamics in real-time using electrochemical detection. RSC Adv 2014. [DOI: 10.1039/c4ra12632g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Dopamine detection from PC12 cell populations and monitoring of yeast redox metabolism demonstrate the multifunctionality of the compact microfluidic cell culture and electrochemical analysis platform with in-built fluid handling and detection unit.
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Affiliation(s)
- K. Zór
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby, Denmark
| | - A. Heiskanen
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby, Denmark
| | - C. Caviglia
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby, Denmark
| | - M. Vergani
- Dipartimento di Elettronica
- Informazione e Bioingegneria
- Politecnico di Milano
- Milan, Italy
| | - E. Landini
- Department of Informatics, Bioengineering, Robotics, and System Engineering
- University of Genova
- Genova, Italy
| | - F. Shah
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby, Denmark
| | - M. Carminati
- Dipartimento di Elettronica
- Informazione e Bioingegneria
- Politecnico di Milano
- Milan, Italy
| | - A. Martínez-Serrano
- Department of Molecular Biology and Center of Molecular Biology “Severo Ochoa”
- University Autónoma de Madrid
- Madrid, Spain
| | - T. Ramos Moreno
- Department of Molecular Biology and Center of Molecular Biology “Severo Ochoa”
- University Autónoma de Madrid
- Madrid, Spain
- Wallenberg Neuroscience Center
- Lund University
| | - M. Kokaia
- Wallenberg Neuroscience Center
- Lund University
- Lund, Sweden
| | - D. Benayahu
- Department of Cell and Developmental Biology
- Tel Aviv University
- Ramat Aviv, Israel
| | - Zs. Keresztes
- Research Center for Natural Sciences
- Hungarian Academy of Sciences
- Budapest, Hungary
| | - D. Papkovsky
- Department of Biochemistry and Cell Biology
- University College Cork
- Cork, Ireland
| | - U. Wollenberger
- Department of Molecular Enzymology
- University of Potsdam
- Potsdam (Golm), Germany
| | - W. E. Svendsen
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby, Denmark
| | - M. Dimaki
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby, Denmark
| | - G. Ferrari
- Dipartimento di Elettronica
- Informazione e Bioingegneria
- Politecnico di Milano
- Milan, Italy
| | - R. Raiteri
- Department of Informatics, Bioengineering, Robotics, and System Engineering
- University of Genova
- Genova, Italy
| | - M. Sampietro
- Dipartimento di Elettronica
- Informazione e Bioingegneria
- Politecnico di Milano
- Milan, Italy
| | - M. Dufva
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby, Denmark
| | - J. Emnéus
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DK-2800 Kgs. Lyngby, Denmark
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Fogarty FM, O'Keeffe J, Zhadanov A, Papkovsky D, Ayllon V, O'Connor R. HRG-1 enhances cancer cell invasive potential and couples glucose metabolism to cytosolic/extracellular pH gradient regulation by the vacuolar-H+ ATPase. Oncogene 2013; 33:4653-63. [DOI: 10.1038/onc.2013.403] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 07/29/2013] [Accepted: 08/23/2013] [Indexed: 12/14/2022]
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Jasionek G, Ogurtsov V, Papkovsky D. Rapid detection and respirometric profiling of aerobic bacteria on panels of selective media. J Appl Microbiol 2012; 114:423-32. [PMID: 23107004 DOI: 10.1111/jam.12049] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 09/09/2012] [Accepted: 10/15/2012] [Indexed: 12/01/2022]
Abstract
AIMS To evaluate high-throughput optical oxygen microrespirometry for selective detection and predictive identification of aerobic bacteria. METHODS AND RESULTS Using GreenLight probe, standard 384-well plates and time-resolved fluorescence reader, a representative panel of 16 partially selective media and 9 aerobic bacteria (Escherichia coli, Bacillus cereus, Staphylococcus aureus, Campylobacter jejuni, Yersinia enterocolitica, Pseudomonas aeruginosa, Streptococcus pyogenes, Salmonella typhimurium and Listeria innocua) were analysed. For each medium, bacterial strain and dilution, growth profiles were recorded, from which calibrations, doubling/generation times and growth patterns in different media were determined. Analytical performance, selectivity and general usability of the method were assessed, and mixed bacterial cultures were analysed. CONCLUSION The microrespirometry platform facilitates simple, real-time detection and predictive identification of aerobic bacteria by looking at the patterns of their growth and respiration in several media and determining their growth and doubling times. SIGNIFICANCE AND IMPACT OF THE STUDY The new screening method can be used for routine microbiological analysis and testing of aerobic bacterial cultures as well as complex food, environmental and clinical samples.
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Affiliation(s)
- G Jasionek
- Department of Biochemistry, University College Cork, Cork, Ireland
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Skolimowski M, Weiss Nielsen M, Abeille F, Skafte-Pedersen P, Sabourin D, Fercher A, Papkovsky D, Molin S, Taboryski R, Sternberg C, Dufva M, Geschke O, Emnéus J. Modular microfluidic system as a model of cystic fibrosis airways. Biomicrofluidics 2012; 6:34109. [PMID: 23908680 PMCID: PMC3423306 DOI: 10.1063/1.4742911] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 07/24/2012] [Indexed: 05/13/2023]
Abstract
A modular microfluidic airways model system that can simulate the changes in oxygen tension in different compartments of the cystic fibrosis (CF) airways was designed, developed, and tested. The fully reconfigurable system composed of modules with different functionalities: multichannel peristaltic pumps, bubble traps, gas exchange chip, and cell culture chambers. We have successfully applied this system for studying the antibiotic therapy of Pseudomonas aeruginosa, the bacteria mainly responsible for morbidity and mortality in cystic fibrosis, in different oxygen environments. Furthermore, we have mimicked the bacterial reinoculation of the aerobic compartments (lower respiratory tract) from the anaerobic compartments (cystic fibrosis sinuses) following an antibiotic treatment. This effect is hypothesised as the one on the main reasons for recurrent lung infections in cystic fibrosis patients.
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Affiliation(s)
- M Skolimowski
- Department of Micro- and Nanotechnology, Technical University of Denmark, Ørsted Plads, Building 345B, Kgs. Lyngby DK-2800, Denmark ; Department of Systems Biology, Technical University of Denmark, Matematiktorvet, Building 301, Kgs. Lyngby DK-2800, Denmark
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Kulmala S, Mãtãchescu C, Kulmala A, Papkovsky D, Håkansson M, Ketamo H, Canty P. Chemiluminescence of luminol induced by dissolution of oxide-covered aluminum in alkaline aqueous solution. Anal Chim Acta 2002. [DOI: 10.1016/s0003-2670(01)01491-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Canty P, Väre L, Håkansson M, Spehar AM, Papkovsky D, Ala-Kleme T, Kankare J, Kulmala S. Time-resolved electrochemiluminescence of platinum(II) coproporphyrin. Anal Chim Acta 2002. [DOI: 10.1016/s0003-2670(01)01413-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kulmala S, Ala-Kleme T, Kulmala A, Papkovsky D, Loikas K. Cathodic Electrogenerated Chemiluminescence of Luminol at Disposable Oxide-Covered Aluminum Electrodes. Anal Chem 1998. [DOI: 10.1021/ac970954g] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S. Kulmala
- Department of Chemistry, University of Turku, FIN-20014 Finland, and Department of Biochemistry, University College, Cork, Ireland
| | - T. Ala-Kleme
- Department of Chemistry, University of Turku, FIN-20014 Finland, and Department of Biochemistry, University College, Cork, Ireland
| | - A. Kulmala
- Department of Chemistry, University of Turku, FIN-20014 Finland, and Department of Biochemistry, University College, Cork, Ireland
| | - D. Papkovsky
- Department of Chemistry, University of Turku, FIN-20014 Finland, and Department of Biochemistry, University College, Cork, Ireland
| | - K. Loikas
- Department of Chemistry, University of Turku, FIN-20014 Finland, and Department of Biochemistry, University College, Cork, Ireland
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