Apoptotic protease-activating factor 1 (Apaf-1) mRNA (APAF1 mRNA)

Apoptotic protease-activating factor 1 (Apaf-1) mRNA encodes a key protein required for the mitochondrial pathway of apoptosis (UniProt: O14727). In the presence of cytochrome c and dATP, the Apaf-1 protein oligomerizes into a heptameric complex called the apoptosome, which activates procaspase-9 (Zou et al., 1997, Cell). This activation initiates a proteolytic cascade involving executioner caspases that ultimately leads to programmed cell death. Targeting Apaf-1 mRNA using RNA interference (siRNA) or antisense oligonucleotides (ASOs) is being investigated as a method to reduce Apaf-1 protein levels and provide cytoprotection in conditions like myocardial infarction and stroke (Ferraro et al., 2003, PubMed). Conversely, reduced expression of Apaf-1 mRNA is observed in certain cancers, such as melanoma, contributing to chemoresistance and tumor progression (Soengas et al., 2001, Nature). Therapeutic strategies targeting this mRNA focus on either silencing it to protect healthy tissue from injury or potentially modulating its expression to restore apoptotic sensitivity in malignant cells.

Other names

APAF-1 mRNACED4 homolog mRNAApoptotic protease-activating factor 1 transcript

RNA interference (siRNA) or antisense-mediated degradation (ASO) of the mRNA transcript to prevent the translation of the Apaf-1 protein, thereby inhibiting apoptosome formation and subsequent caspase activation.