Ebola virus RNA-directed RNA polymerase L mRNA (EBOV L mRNA) (EBOV L mRNA)

The Ebola virus RNA-directed RNA polymerase L mRNA is the transcript of the L gene, which encodes the large (L) protein, the catalytic subunit of the viral RNA-dependent RNA polymerase (RdRp) complex (UniProt: P35263). This mRNA is essential for the viral life cycle as it serves as the template for synthesizing the L protein, which is responsible for both the transcription of viral mRNAs and the replication of the viral genome (PubMed: 25901685). In the context of Ebola virus disease (EVD), targeting this mRNA using RNA interference (RNAi) or antisense technologies aims to silence the expression of the L protein, effectively halting viral propagation. Therapeutic candidates like TKM-Ebola (TKM-100802) have utilized small interfering RNAs (siRNAs) encapsulated in lipid nanoparticles to specifically bind and trigger the degradation of the L polymerase mRNA (PubMed: 20511019). This approach prevents the formation of the viral replication complex, thereby reducing the viral load in the host. Clinical trials have explored the efficacy of these siRNA-based treatments during major outbreaks, highlighting the mRNA's role as a viable therapeutic target (PubMed: 26201653). However, challenges remain, including the need for efficient delivery to infected cells and the potential for the host's innate immune system to recognize the therapeutic RNA as a pathogen-associated molecular pattern. Despite these hurdles, targeting the L polymerase mRNA remains a key strategy in developing broad-spectrum or virus-specific countermeasures against Filoviruses.

Other names

Ebola virus L polymerase mRNAZaire ebolavirus L gene mRNAEBOV L transcriptLarge protein mRNA

RNA interference (RNAi)-mediated mRNA degradation and translation inhibition (PubMed: 20511019).