The underlying molecular mechanism of the isoflurane-induced apoptosis is largely unknown.
1 Mitochondrial pathways of yeast apoptosis and age induced programmed cell death.Conserved molecules and processes involved in the regulation of yeast cell … Mitochondrial cytochrome c (cyt c) has been found to have dual functions in controlling both cellular energetic metabolism and apoptosis.Through interaction with apoptotic protease activating factors (Apaf), cyt c can initiate the activation cascade of caspases once it is released into the cytosol. Apoptosis can be activated by stimuli coming within the cell, including cell stressors, such as hypoxia or lack of nutrients, and agents that cause damage of DNA or other cell structures. The mitochondrial pathway of apoptosis, also called theintrinsic pathway, is the most common mechanism of apoptosis in vertebrates. 1012 Apoptosis (2007) 12:1011–1023 Fig.
The intrinsic cell death pathway, also known as the mitochondrial apoptotic pathway, is activated by a wide range of signals, including radiation, cytotoxic drugs, cellular stress, and growth factor withdrawal, and involves the release of proteins (including cytochrome c) from the mitochondrial … 2,3 The Bcl-2 family, including both antiapoptotic (eg, Bcl-2 and Bcl-xL) and proapoptotic members such as Bax, plays a pivotal role in the mitochondrial apoptotic pathway. Oncogenic (e.g., PI3K/AKT, RAS-MAPK, and Myc) and tumor suppressor pathways (e.g., … The mitochondrial permeability transition pore (MPT pore or MPTP) is a nonspecific channel formed by components of the inner and outer mitochondrial membranes, and appears to be involved in the release of mitochondrial … The loss of a component of the mitochondrial …
In this chapter, we present the current view on the mitochondrial pathway of apoptosis with a particular attention to new aspects of the regulation of the Bcl-2 proteins family control of mitochondrial membrane permeabilization: the mechanisms implicated in their mitochondrial targeting and activation during apoptosis…
We, therefore, set out to assess whether isoflurane can induce apoptosis by regulating Bcl-2 family proteins, enhancing reactive oxygen species (ROS) accumulation, and activating the mitochondrial pathway of apoptosis.
Mitochondria are involved in both caspase-dependent and caspase-independent apoptosis pathways.
The Intrinsic Mitochondrial Apoptosis Pathway A variety of stress stimuli including growth factor withdrawal, heat shock, and DNA damage activate the apoptosis intrinsic or mitochondrial pathway. In this pathway, proapoptotic members of the Bcl-2 family cause mitochondrial outer membrane permeabilization (MOMP), allowing the release of cytochrome c , which interacts with Apaf-1 to trigger caspase activation and apoptosis… The intrinsic mitochondria‐dependent pathway of platelet apoptosis is well documented (Leytin, 2012; Appendix S1, reference 1).There is, however, no direct evidence that, in contrast to nucleated cells, apoptosis in anucleate platelets can be triggered via the extrinsic apoptosis pathway … The mitochondrial pathway of apoptosis is the major mechanism of physiological cell death in vertebrates. In vertebrates this pathway is initiated by the release of apoptosis mediators from the mitochondrial … A wide array of external signals evokes apoptosis through 2 major signaling pathways: the death receptor–mediated pathway and the mitochondrial pathway. Piece #1: Tumor suppressor and oncogenic pathways converge on the mitochondrial pathway of apoptosis. The apoptotic signals that are channeled through the mitochondrial pathway of apoptosis …
Intrinsic or mitochondrial pathway.
Damage to mitochondria activates signaling pathways that induce apoptosis.