Detection of the mitochondrial permeability transition event provides an early indication of the initiation of cellular apoptosis. This process is typically defined as a collapse in the electrochemical gradient across the mitochondrial membrane, as measured by the change in the membrane potential (YD). Loss of mitochondrial (YD) is indicative of apoptosis and can be detected by a unique fluorescent cationic dye, 5,5',6,6'-tetrachloro-1,1',3,3'-tetraethyl- benzamidazolocarbocyanin iodide, commonly known as JC-1. This dye has been incorporated into the user-friendly kit for the simple and reproducible detection of the membrane potential (YD) event in apoptotic cells. The kit has been formatted for use on Flow cytometers, Fluorescent plate readers and Fluorescent Microscopes |
- Desagher, S., Osen-Sand, A., Nichols, A., Eskes, R., Montessuit, S., Lauper, S., Maundrell, K., Antonsson, B., and Martinou, J.C. Bid-induced conformational change of Bax is responsible for mitochondrial cytochrome c release during apoptosis. J. Cell Biol. 144 (5): 891-901 (1999).
- Narita, M., Shimizu, S., Ito, T., Chittenden, T., Lutz, R. J., Matsuda, H., and Tsujimoto, Y. Bax interacts with the permeability transition pore to induce permeability transition and cytochrome c release in isolated mitochondria. Proc. Natl. Acad. Sci. USA 95: 14681-14686 (1998).
- Basanez, G., Nechushtan, A., Drozhinin, O., Chanturiya, A., Choe, E., Tutt, S., Wood, K. A., Hsu, Y. T., Zimmerberg, J., and Youle, R. J. Bax , but not Bcl-XL decreases the lifetime of planar phospholipid bilayer membranes at subnanomolar concentrations. Proc. Natl. Acad. Sci. USA 96: 5492-5497 (1999).
- Luo, X., Budihardio, I., Zou, H., Slaughter, C., and Wang, X. Bid, a Bcl-2 interacting protein, mediates cytochrome c release from mitochondria in response to activation of cell surface death receptors. Cell 94: 481-490 (1998).
- Smiley, S. T., Reers, M., Mottola-Hartshorn, C., Lin, M., Chen, A., Smith, T. W., Steele, G.D., and Chen, L. B. Intracellular heterogeneity in mitochondrial membrane potentials revealed by a J-aggregate forming lipophilic cation JC-1. Proc. Natl. Acad. Sci. USA 88: 3671-3675 (1991).
- Cossarizza, A., Baccarani-Contri, M., Kalashnikova, G., and Franceschi, C. A new method for the cytofluorimetric analysis of mitochondrial membrane potential using the J-aggregate forming lipophilic cation 5,5’,6,6’-tetrachloro-1,1’,3,3’-tetraethylbenzimidazolylcarbocyanine iodide (JC-1). Biochem. Biophys. Res. Commun. 197 (1): 40-45 (1993).
- Reers, M., Smith, T. W., and Chen, L. B. J-aggregate formation of a carbocyanine as a quantitative fluorescent indicator of membrane potential. Biochemistry 30: 4480-4486 (1991).
- White, R. J., and Reynolds, I. J. Mitochondrial depolarization in glutamatestimulated neurons: an early signal specific to excitotoxin exposure. Journal of Neuroscience 16: 5688-5697 (1996).
|