Ratiometric measurement of intracellular pH in cultured human keratinocytes using carboxy-SNARF-1 and flow cytometry
β Scribed by Piet E. J. Van Erp; Monique J. J. M. Jansen; Gijs J. De Jongh; Jan B. M. Boezeman; Joost Schalkwijk
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 563 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0196-4763
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## Abstract ## Background Two calibration methods have been proposed for determining the relation between the fluorescence ratio of a pHβsensitive fluorescent indicator and intracellular pH (pH~i~). The first method uses nigericin to clamp pH~i~ to external pH (pH~e~) and the second is the null po
Intracellular acidification appears to be a frequent and possibly universal occurrence during apoptosis. We have used carboxy SNARF-1 to measure intracellular pH by flow cytometry. We report here that the addition of Hoechst 33342 concurrently with carboxy SNARF-1 provides a clearer &ctiminatlon of