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GEMS: A New Way of Looking
GEMS (Gene Expression Modulation by Small-Molecules) is a novel and proprietary screening technology for the
identification of small molecules that modulate post-transcriptional control mechanisms. Compounds identified
through the GEMS technology modulate gene expression by targeting the post-transcriptional control processes
that act through the UTRs of mRNA molecules. GEMS was utilized in the discovery of PTC299, in the HCV program,
and in multiple ongoing drug discovery programs.
PTC's GEMS technology has many advantages to traditional drug discovery efforts, including:
- The ability to address a wide variety of genes as potential targets for drug discovery. These include new
targets and previously intractable targets, as well as validated targets that can be addressed by an alternative
mechanism (which can provide the opportunity for synergy with existing drugs).
- The ability to avoid the drug delivery challenges associated with biologics, antisense, gene therapy, or
RNAi. PTC's approach offers the opportunity to replace such drugs with orally delivered small-molecule drugs.
- The ability to use orally bioavailable small-molecule drugs to either up- or down-regulate protein levels.
- The ability to address targets even when their function is unknown, bypassing the need to understand the complete disease pathway.
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