Transient and long-lasting openings of the mitochondrial permeability transition pore can be monitored directly in intact cells by changes in mitochondrial calcein fluorescence.
Authors:Petronilli V, Miotto G, Canton M, Brini M, Colonna R, Bernardi P, Di Lisa F
Journal:Biophys J
PubMed ID:9929477
'The occurrence and the mode of opening of the mitochondrial permeability transition pore (MTP) were investigated directly in intact cells by monitoring the fluorescence of mitochondrial entrapped calcein. When MH1C1 cells and hepatocytes were loaded with calcein AM, calcein was also present within mitochondria, because (i) its mitochondrial signal was ... More
Effect of transient and permanent permeability transition pore opening on NAD(P)H localization in intact cells.
'To study the effect of mitochondrial permeability transition pore (PTP) opening on NAD(P)H localization, intact cells were exposed to the Ca(2+) ionophore A23187. PTP opening, mitochondrial membrane potential, mitochondrial volume, and NAD(P)H localization were assessed by time-lapse laser confocal microscopy using the calcein-cobalt technique, tetramethylrhodamine methyl ester, MitoTracker, and NAD(P)H ... More
Measuring apoptosis at the single cell level.
Authors:Bouchier-Hayes L, Muñoz-Pinedo C, Connell S, Green DR,
Journal:Methods
PubMed ID:18314052
The use of live cell microscopy has made a number of contributions to the study of apoptosis. Many of the tools and techniques are available that allow us to image the key events that occur during cell death including mitochondrial outer membrane permeabilization, mitochondrial transmembrane potential changes, translocation of Bcl-2 ... More
The mechanisms of apoptosis in biology and medicine: a new focus for ophthalmology.
Authors:Tempestini A, Schiavone N, Papucci L, Witort E, Lapucci A, Cutrì M, Donnini M, Capaccioli S
Journal:Eur J Ophthalmol
PubMed ID:12749672
Defects in apoptosis (programmed cell death) have recently emerged as being closely involved in the pathogenesis of most ocular diseases and, therefore, apoptosis is now a topic of exponential interest in ophthalmology. This review summarizes recent works on mechanisms of apoptosis, from its initiation and modulation to the switching-on of ... More
Therapeutic Potential of a Novel Necrosis Inhibitor, 7-Amino-Indole, in Myocardial Ischemia-Reperfusion Injury.