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Estimation of H2O2 gradients across biomembranes
Open accessAbstract
When cells are exposed to an external source of H 2 O 2, the rapid enzymatic consumption of H 2 O 2 inside the cell provides the driving force for the formation of the gradient across the plasma and other subcellular membranes. By using the concepts of enzyme latency, the following gradients – formed after a few seconds following the exposure to H 2 O 2 – were estimated in Jurkat T‐cells: [H 2 O 2]cytosol/[H 2 O 2]peroxisomes=3; [H 2 O 2]extracellular/[H 2 O 2]cytosol=7. The procedure presented in this work can easily be applied to other cell lines and provides a quantitative framework to interpret the data obtained when cells are exposed to an external source of H 2 O 2.
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Cited by
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Chen, Q., Espey, M. G., Krishna, M. C., Mitchell, J. B., Corpe, C. P., Buettner, G. R., Shacter, E., & Levine, M. (2005) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0506390102 · Cited by 1,075
Metadata
- Authors
- Antunes, F., & Cadenas, E.
- Venue
- FEBS Letters
- Publisher
- Wiley
- Published
- 2000-06-15
- Volume
- 475
- Issue
- 2
- Pages
- 121-126
- ISSN
- 0014-5793 (ISSN-L)
- 1873-3468
- OpenAlex
- W2005602619
- Cited by
- 498
- References
- 0
- FWCI
- 3.72
- Type
- journal article
- Language
- en
- Open access
- bronze
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