MiPNet08.09 CellRespiration: Difference between revisions
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|info=[[File:PDF.jpg|100px|link=http://wiki.oroboros.at/images/d/da/MiPNet08.09_CellRespiration.pdf |Bioblast pdf]] | |info=[[File:PDF.jpg|100px|link=http://wiki.oroboros.at/images/d/da/MiPNet08.09_CellRespiration.pdf |Bioblast pdf]] | ||
|authors=OROBOROS | |authors=OROBOROS | ||
|year= | |year=2016-07-20 | ||
|journal=Mitochondr Physiol Network | |journal=Mitochondr Physiol Network | ||
|abstract=''' | |abstract='''Doerrier C, Renner K, Gnaiger E (2003-16) High-resolution respirometry and coupling control protocol with intact cells: ROUTINE, LEAK, ETS, ROX. Mitochondr Physiol Network 08.09(10 in prep):1-8.''' »[http://www.bioblast.at/index.php/File:MiPNet08.09_CellRespiration.pdf Versions] | ||
An experiment on | An experiment on respiration of [[intact cells]] is reported from an O2k-Workshop on high-resolution respirometry. Leukemia cells were incubated at a density of 1 million cells/ml in 2 ml culture medium in two O2k-Chambers operated in parallel. Cellular ROUTINE respiration, ''J''<sub>R</sub>, resulted in volume-specific oxygen consumption of 20 pmol·s<sup>-1</sup>·ml<sup>-1</sup>. Oxygen concentration changed by merely 6.4 and 6.5 µM in the two O2k-Chambers over a period of 5 min (<1% air saturation per minute). Inhibition by oligomycin (''J<sub>L</sub>''), and rotenone (residual oxygen consumption, ''J''<sub>ROX</sub>; after uncoupling) reduced respiration to 5 and 1 pmol·s<sup>-1</sup>·ml<sup>-1</sup>, while inducing the noncoupled state by the uncoupler FCCP revealed the capacity of the electron transfer system (ETS) at ''J<sub>E</sub>'' of 50 pmol·s<sup>-1</sup>·ml<sup>-1</sup>. The ROUTINE control ratio, ''R/E'', was 0.4 (uncoupling control ratio, UCR=''E/R''=2.5), and the LEAK control ratio, ''L/E'', was 0.1 (''E/L''=12.0). This indicates tight coupling of OXPHOS, and a large ETS excess capacity over ROUTINE respiration. The net ROUTINE control ratio, net''R''=(''R-L'')/''E'' was 0.30, indicating that 30% of ETS capacity was activated for ATP production. | ||
Automatic correction for instrumental background amounted to 13% for ROUTINE respiration, but to >50% and 180% for ''J<sub>L</sub>'' and ''J''<sub>ROX</sub>, respectively, illustrating the importance of real-time correction. The experiment illustrates the sensitivity and resproducibility of high-resolution respirometry with the OROBOROS O2k. Calibrations and routine corrections provide the basis of the high accuracy required for mitochondrial respiratory physiology. Real-time analyses were performed, combining high-resolution with instant diagnostic information. In this update graphs are presented illustrating some features of DatLab. | Automatic correction for instrumental background amounted to 13% for ROUTINE respiration, but to >50% and 180% for ''J<sub>L</sub>'' and ''J''<sub>ROX</sub>, respectively, illustrating the importance of real-time correction. The experiment illustrates the sensitivity and resproducibility of high-resolution respirometry with the OROBOROS O2k. Calibrations and routine corrections provide the basis of the high accuracy required for mitochondrial respiratory physiology. Real-time analyses were performed, combining high-resolution with instant diagnostic information. In this update graphs are presented illustrating some features of DatLab. | ||
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'''»''' [[MitoPedia: Respiratory states]] | '''»''' [[MitoPedia: Respiratory states]] | ||
[[Image:R.jpg|link=ROUTINE respiration|ROUTINE]] [[Image:L.jpg|link=LEAK respiration|LEAK]] [[Image:E.jpg|link=ETS capacity|ETS]] [[Image:ROX.jpg|link=Residual oxygen consumption|ROX]] | [[Image:R.jpg|link=ROUTINE respiration|ROUTINE]] [[Image:L.jpg|link=LEAK respiration|LEAK]] [[Image:E.jpg|link=ETS capacity|ETS]] [[Image:ROX.jpg|link=Residual oxygen consumption|ROX]] | ||
[[Image:MiPNet0809_FCR.jpg|center|width=50px|frame|The figure represents flux control ratios (''FCR'') normalized to state ETS (E) in chambers A and B. ROUTINE respiration in these cells is regulated at 0.4 of ETS capacity (''R/E''). Oligomycin (Omy) inhibits respiration to 0. | [[Image:MiPNet0809_FCR.jpg|center|width=50px|frame|The figure represents flux control ratios (''FCR'') normalized to state ETS (E) in chambers A and B. ROUTINE respiration in these cells is regulated at 0.4 of ETS capacity (''R/E''). Oligomycin (Omy) inhibits respiration to 0.9 ETS capacity.]] | ||
== | == SUIT protocol == | ||
» Instructions for using templates for data evaluation are given in MiPNet08.09 (see above) and [[MiPNet10.04 CellRespiration| | [[File:Ce R 1Omy 2U 3RotAma.png|right|300px]] | ||
::::» SUIT protocol: [[SUIT MiPNet08.09 CellRespiration]] | |||
::::» Instructions for using templates for data evaluation are given in MiPNet08.09 (see above) and [[MiPNet10.04 CellRespiration]]. | |||
'''SUIT states''' | |||
{| class="wikitable" border="1" | |||
|-! Step | |||
! Respiratory state | |||
! Coupling control | |||
|- | |||
| R | |||
| [[ROUTINE]] | |||
|- | |||
| 1Omy | |||
| [[Omy]](L) | |||
|- | |||
| 2U | |||
| [[Uncoupler]](E) | |||
|- | |||
| 3Ama | |||
| [[Antimycin A]](ROX) | |||
|} | |||
» [[Coupling control protocol]] | == Further information == | ||
::::» [[Intact cells]] | |||
::::» [http://www.oroboros.at/?protocols_cell_pcp Excel Templates and DatLab-Demo Files] | |||
::::» [[Coupling control protocol]] |
Revision as of 08:30, 20 July 2016
High-resolution respirometry and coupling control protocol with intact cells: ROUTINE, LEAK, ETS, ROX. |
OROBOROS (2016-07-20) Mitochondr Physiol Network
Abstract: Doerrier C, Renner K, Gnaiger E (2003-16) High-resolution respirometry and coupling control protocol with intact cells: ROUTINE, LEAK, ETS, ROX. Mitochondr Physiol Network 08.09(10 in prep):1-8. »Versions
An experiment on respiration of intact cells is reported from an O2k-Workshop on high-resolution respirometry. Leukemia cells were incubated at a density of 1 million cells/ml in 2 ml culture medium in two O2k-Chambers operated in parallel. Cellular ROUTINE respiration, JR, resulted in volume-specific oxygen consumption of 20 pmol·s-1·ml-1. Oxygen concentration changed by merely 6.4 and 6.5 µM in the two O2k-Chambers over a period of 5 min (<1% air saturation per minute). Inhibition by oligomycin (JL), and rotenone (residual oxygen consumption, JROX; after uncoupling) reduced respiration to 5 and 1 pmol·s-1·ml-1, while inducing the noncoupled state by the uncoupler FCCP revealed the capacity of the electron transfer system (ETS) at JE of 50 pmol·s-1·ml-1. The ROUTINE control ratio, R/E, was 0.4 (uncoupling control ratio, UCR=E/R=2.5), and the LEAK control ratio, L/E, was 0.1 (E/L=12.0). This indicates tight coupling of OXPHOS, and a large ETS excess capacity over ROUTINE respiration. The net ROUTINE control ratio, netR=(R-L)/E was 0.30, indicating that 30% of ETS capacity was activated for ATP production.
Automatic correction for instrumental background amounted to 13% for ROUTINE respiration, but to >50% and 180% for JL and JROX, respectively, illustrating the importance of real-time correction. The experiment illustrates the sensitivity and resproducibility of high-resolution respirometry with the OROBOROS O2k. Calibrations and routine corrections provide the basis of the high accuracy required for mitochondrial respiratory physiology. Real-time analyses were performed, combining high-resolution with instant diagnostic information. In this update graphs are presented illustrating some features of DatLab.
- >> Product: OROBOROS O2k, O2k-Catalogue
• O2k-Network Lab: AT_Innsbruck_OROBOROS
Labels: MiParea: Respiration, Instruments;methods
Organism: Human
Tissue;cell: Blood cells
Preparation: Intact cells
Coupling state: LEAK, ROUTINE, ETS"ETS" is not in the list (LEAK, ROUTINE, OXPHOS, ET) of allowed values for the "Coupling states" property.
HRR: Oxygraph-2k, O2k-Protocol
O2k-Demo, O2k-Core
» MitoPedia: Respiratory states
SUIT protocol
- » SUIT protocol: SUIT MiPNet08.09 CellRespiration
- » Instructions for using templates for data evaluation are given in MiPNet08.09 (see above) and MiPNet10.04 CellRespiration.
SUIT states
Respiratory state | Coupling control |
---|---|
R | ROUTINE |
1Omy | Omy(L) |
2U | Uncoupler(E) |
3Ama | Antimycin A(ROX) |