Difference between revisions of "Gaviraghi 2019 Anal Biochem"
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{{Publication | {{Publication | ||
|title=Gaviraghi A, Oliveira MF (2019) A method for assessing mitochondrial physiology using mechanically permeabilized flight muscle of ''Aedes aegypti'' mosquitoes. Anal Biochem | |title=Gaviraghi A, Oliveira MF (2019) A method for assessing mitochondrial physiology using mechanically permeabilized flight muscle of ''Aedes aegypti'' mosquitoes. Anal Biochem 576:33-41. | ||
|info=[https://www.ncbi.nlm.nih.gov/pubmed/30974092 PMID: 30974092] | |info=[https://www.ncbi.nlm.nih.gov/pubmed/30974092 PMID: 30974092] | ||
|authors=Gaviraghi A, Oliveira MF | |authors=Gaviraghi A, Oliveira MF | ||
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|keywords=Bioenergetics, Dengue, Metabolism, Mitochondria, Muscle, Permeabilization, Respiration, Zika | |keywords=Bioenergetics, Dengue, Metabolism, Mitochondria, Muscle, Permeabilization, Respiration, Zika | ||
|editor=[[Plangger M]], | |editor=[[Plangger M]], | ||
|mipnetlab=BR Rio de Janeiro Oliveira MF | |||
}} | }} | ||
{{Labeling | {{Labeling | ||
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|tissues=Skeletal muscle | |tissues=Skeletal muscle | ||
|preparations=Permeabilized tissue | |preparations=Permeabilized tissue | ||
|couplingstates=LEAK, OXPHOS, ET | |||
|pathways=N, Gp, CIV, ROX | |||
|instruments=Oxygraph-2k | |instruments=Oxygraph-2k | ||
|additional=Labels, 2019-04, | |additional=Labels, 2019-04, | ||
}} | }} | ||
Latest revision as of 14:51, 15 May 2019
| Gaviraghi A, Oliveira MF (2019) A method for assessing mitochondrial physiology using mechanically permeabilized flight muscle of Aedes aegypti mosquitoes. Anal Biochem 576:33-41. |
Gaviraghi A, Oliveira MF (2019) Anal Biochem
Abstract: Aedes aegypti is the most important and widespread vector of arboviruses, including dengue and zika. Insect dispersal through the flight activity is a key parameter that determines vector competence, and is energetically driven by oxidative phosphorylation in flight muscle mitochondria. Analysis of mitochondrial function is central for a better understanding of cellular metabolism, and is mostly studied using isolated organelles. However, this approach has several challenges and methods for assessment of mitochondrial function in chemically-permeabilized tissues were designed. Here, we described a reliable protocol to assess mitochondrial physiology using mechanically permeabilized flight muscle of single A. aegypti mosquitoes in combination with high-resolution respirometry. By avoiding the use of detergents, high respiratory rates were obtained indicating that substrate access to mitochondria was not limited. This was confirmed by using selective inhibitors for specific mitochondrial substrates. Additionally, mitochondria revealed highly coupled, as ATP synthase or adenine nucleotide translocator inhibition strongly impacted respiration. Finally, we determined that pyruvate and proline induced the highest respiratory rates compared to other substrates tested. This method allows the assessment of mitochondrial physiology in mosquito flight muscle at individual level, and can be used for the identification of novel targets aiming rational insect vector control.
Copyright © 2019. Published by Elsevier Inc. • Keywords: Bioenergetics, Dengue, Metabolism, Mitochondria, Muscle, Permeabilization, Respiration, Zika • Bioblast editor: Plangger M • O2k-Network Lab: BR Rio de Janeiro Oliveira MF
Labels: MiParea: Respiration
Organism: Hexapods
Tissue;cell: Skeletal muscle
Preparation: Permeabilized tissue
Coupling state: LEAK, OXPHOS, ET
Pathway: N, Gp, CIV, ROX
HRR: Oxygraph-2k
Labels, 2019-04
