The SLC25A5 enzyme is an important constituent in apoptotic signaling and
oxidative stress, most notably as part of the mitochondrial death pathway and cardiac myocyte apoptosis signaling.
Programmed cell death is a distinct genetic and biochemical pathway essential to metazoans. An intact death pathway is required for successful embryonic development and the maintenance of normal tissue homeostasis. Apoptosis has proven to be tightly interwoven with other essential cell pathways. The identification of critical control points in the cell death pathway has yielded fundamental insights for basic biology, as well as provided rational targets for new therapeutics a normal
embryologic processes, or during cell injury (such as ischemia-reperfusion injury during
heart attacks and
strokes) or during developments and processes in
cancer, an apoptotic cell undergoes structural changes including cell shrinkage, plasma membrane blebbing, nuclear condensation, and fragmentation of the
DNA and
nucleus. This is followed by fragmentation into
apoptotic bodies that are quickly removed by
phagocytes, thereby preventing an
inflammatory response. It is a mode of cell death defined by characteristic morphological, biochemical and molecular changes. It was first described as a "shrinkage necrosis", and then this term was replaced by apoptosis to emphasize its role opposite
mitosis in tissue kinetics. In later stages of apoptosis the entire cell becomes fragmented, forming a number of plasma membrane-bounded apoptotic bodies which contain nuclear and or cytoplasmic elements. The ultrastructural appearance of
necrosis is quite different, the main features being mitochondrial swelling, plasma membrane breakdown and cellular disintegration. Apoptosis occurs in many
physiological and
pathological processes. It plays an important role during
embryonal development as programmed cell death and accompanies a variety of normal involutional processes in which it serves as a mechanism to remove "unwanted" cells. The SLC25A5 gene is important for the coding of the most abundant
mitochondrial protein Ancp which represents 10% of the proteins of the inner membrane of bovine heart mitochondria. Ancp is encoded by four different genes: SLC25A4 (also known as ANC1 or
ANT1), SLC25A5 (ANC3 or ANT2), SLC25A6 (ANC2 or ANT3) and SLC25A31 (ANC4 or ANT4). Their expression is tissue specific and highly regulated and adapted to particular cellular energetic demand. Indeed, human ANC expression patterns depend on the tissue and cell types, the developmental stage and the status of cell proliferation. Furthermore, expression of the genes is modulated by different transcriptional elements in the promoter regions. Therefore, Ancp emerges as a logical candidate to regulate the cellular dependence on
oxidative energy metabolism. Thus, ANT2 inhibitors could contribute to anticancer therapies. In the brain, ANT2 participates as part of the post-synaptic density (PSD) and, thus, has been associated with
X-linked intellectual disability (XLID). == Interactions ==