Mitogen-activated protein kinase kinase kinase 3 mRNA (MAP3K3 mRNA) (MAP3K3 mRNA)

Mitogen-activated protein kinase kinase kinase 3 (MAP3K3/MEKK3) mRNA is the transcript encoding a serine/threonine kinase that serves as a critical node in several intracellular signaling pathways, including the p38, JNK, and NF-kappaB cascades (UniProt Q99759). It is essential for normal vascular development and the maintenance of endothelial cell integrity. In patients with Cerebral Cavernous Malformations (CCM), the loss of the CCM1, CCM2, or CCM3 proteins leads to the pathological overactivation of the MEKK3 signaling axis, which in turn drives the overexpression of transcription factors KLF2 and KLF4, resulting in the formation of fragile, leaky vascular lesions (Zhou et al., Nature, 2016). Because of this central role in CCM pathogenesis, MEKK3 mRNA has emerged as a primary target for gene-silencing therapies, such as antisense oligonucleotides (ASOs) and small interfering RNAs (siRNAs), which aim to reduce MEKK3 protein levels and restore vascular stability (Cuttano et al., Nature Communications, 2016). Beyond vascular disease, MEKK3 mRNA is also investigated in the context of inflammatory disorders and oncology, where its dysregulation contributes to aberrant cell survival and proliferation. Targeting the mRNA directly allows for the modulation of this kinase in cases where small molecule inhibitors may lack sufficient specificity or cause systemic toxicity.

Other names

MEKK3 mRNAMAPKKK3 mRNAMitogen-activated protein kinase kinase kinase 3 transcript

RNA interference (RNAi) or RNase H-mediated degradation of mRNA to reduce the expression of the MEKK3 protein.