How does jc1 work?
How does jc1 work?
JC-1 is a lipophilic, cationic dye that can selectively enter into mitochondria and reversibly change color from green to red as the membrane potential increases. In healthy cells with high mitochondrial (ΔψM), JC-1 spontaneously forms complexes known as J-aggregates with intense red fluorescence.
What does TMRE bind to?
As discussed in Results, TMRM, TMRE, and R123 were found to bind to mitochondria, causing an apparent deviation of the ΔΨ-dependent accumulation of these probes from that predicted by the Nernst equation.
What is mitochondrial membrane potential?
The mitochondrial membrane potential (ΔΨm) generated by proton pumps (Complexes I, III and IV) is an essential component in the process of energy storage during oxidative phosphorylation. Together with the proton gradient (ΔpH), ΔΨm forms the transmembrane potential of hydrogen ions which is harnessed to make ATP.
What does TMRE stand for?
TMRE
| Acronym | Definition |
|---|---|
| TMRE | tetramethyl rhodamine ethyl ester |
What does MitoTracker green stain?
MitoTracker Green FM is green-fluorescent mitochondrial stain which appears to localize to mitochondria regardless of mitochondrial membrane potential. The dye will stain live cells but is not well-retained after aldehyde fixation.
How reliable are fluorescent dyes for monitoring mitochondrial membrane potential?
In recent years, fluorescent dyes have been frequently used for monitoring mitochondrial membrane potential to evaluate mitochondrial viability and function. However, the reproducibility of the results across laboratories strongly depends upon following well validated and reliable protocols along with the appropriate controls.
Can JC-1 dye be used as a quantitative measure of membrane potential?
It is noteworthy JC-1 dye can be used both as qualitative (considering the shift from green to red fluorescence emission) and quantitative (considering only the pure fluorescence intensity) measure of mitochondrial membrane potential (Cossarizza and Salvioli, 1998).
What is the difference between a polarized and depolarized membrane?
Because there is a potential difference across the cell membrane, the membrane is said to be polarized. If the membrane potential becomes more positive than it is at the resting potential, the membrane is said to be depolarized.
Can MitoTracker dyes be used to identify mitochondria?
However, MitoTracker dyes should be used with caution as they may bind covalently to mitochondria structures and therefore do not respond to changes in MMP [124]. Furthermore, another kind of dye, JC-1, yields green or red fluorescence depending on MMP and allows to distinguish cells with high or low mitochondria potential.