We thus propose that in ASD, down-regulation of RORA is exacerbated by a negative feedback mechanism involving reduction of aromatase that can result in build-up of its substrate testosterone which, in turn, can further suppress RORA expression.
This results in a build-up of misfolded substrate proteins that are labeled to be degraded by UPS (21, 22).
Fabry disease itself is an X-chromosome-linked lysosomal storage disease caused by loss of native GLA activity in affected individuals, allowing a toxic build-up of the substrate globotriaosylceramide.
In theory, both series present significant advantages over competitive inhibitors where build up of substrate trypanothione during inhibition in vivo could reduce the efficacy of the inhibitor.
Loss-of-function mutation in these genes results in the build-up of their substrates, succinate and fumarate, respectively.
It was previously proposed that impaired autophagosome:lysosome fusion is a global problem in LSDs (6, 8) with build-up of autophagic substrates such as aggregate-prone proteins and dysfunctional mitochondria; a lack of nutrient recycling could potentially trigger further autophagy in an attempt by the cell to compensate.
In order to make drug target identification easily understood, we use another graphical representation of metabolic networks [ 29], in which a metabolic network is built up of substrates that are connected to one another not through single links, but through physical entities denoting reactions (enzymes).
With ALA stimulation, a later step in heme biosynthesis become rate limiting, and the build-up of the redox active substrate for this step can inhibit parasite growth.
The design of inhibitors that selectively inhibit the N-domain (N-selective) could be useful in treating conditions of tissue injury and fibrosis due to build-up of N-domain-specific substrate Ac-SDKP (N-acetyl-Ser Asp Lys Pro).
ADA is involved in the purine salvage pathway and absence of this enzyme leads to build-up of intracellular and extracellular substrates (adenosine or deoxyadenosine) leading to adverse effects on the functions of different cell types.
