A new pharmacology--drugging stressed folding pathways

Trends Mol Med. 2005 Aug;11(8):347-50. doi: 10.1016/j.molmed.2005.06.011.

Abstract

Folding in the endoplasmic reticulum (ER) must couple protein-synthesis pathways operating outside of the compartment with ER-assisted folding (ERAF) pathways in the lumen. Chaperone-mediated folding imbalances that are associated with numerous misfolding diseases, including diabetes, trigger the unfolded-protein response (UPR), using both transcriptional and translational pathways to correct the problem. Recent work suggests that small-molecule inhibitors could be useful to help rebalance protein synthesis with ERAF pathways through the ribosomal initiating factor eIF2alpha. Reprogramming stress pathways with drugs provides a potential new approach for balancing ER-protein load with cellular-folding capacity, thus correcting disease.

Publication types

  • Review

MeSH terms

  • Animals
  • Cinnamates / pharmacology*
  • Endoplasmic Reticulum / drug effects*
  • Endoplasmic Reticulum / metabolism
  • Humans
  • Phosphorylation / drug effects
  • Protein Biosynthesis / drug effects*
  • Protein Folding*
  • Thiourea / analogs & derivatives*
  • Thiourea / pharmacology
  • Transcription Factors / antagonists & inhibitors
  • Transcription Factors / metabolism*

Substances

  • Cinnamates
  • Transcription Factors
  • salubrinal
  • ELF2 protein, human
  • Thiourea