New roles for the major human 3'-5' exonuclease TREX1 in human disease

Cell Cycle. 2008 Jun 15;7(12):1718-25. doi: 10.4161/cc.7.12.6162. Epub 2008 Jun 16.


Aicardi-Goutières syndrome (AGS), Systemic Lupus Erythematosus (SLE), Familial Chilblain Lupus (FCL) and Retinal Vasculopathy and Cerebral Leukodystrophy (RVCL) {a new term encompassing three independently described conditions with a common etiology--Cerebroretinal Vasculopathy (CRV), Hereditary Vascular Retinopathy (HVR) and Hereditary Endotheliopathy, Retinopathy and Nephropathy (HERNS)}--have previously been regarded as distinct entities. However, recent genetic analysis has demonstrated that each of these diseases maps to chromosome 3p21 and can be caused by mutations in TREX1, the major human 3'-5' exonuclease. In this review, we discuss the putative functions of TREX1 in relationship to the clinical, genetic and functional characteristics of each of these conditions.

Publication types

  • Review

MeSH terms

  • Brain Diseases / diagnosis
  • Brain Diseases / genetics
  • Exodeoxyribonucleases / chemistry
  • Exodeoxyribonucleases / genetics
  • Exodeoxyribonucleases / physiology*
  • Genetic Diseases, Inborn / genetics*
  • Humans
  • Lupus Erythematosus, Systemic / diagnosis
  • Lupus Erythematosus, Systemic / genetics
  • Mutation
  • Phosphoproteins / chemistry
  • Phosphoproteins / genetics
  • Phosphoproteins / physiology*
  • Retinal Diseases / diagnosis
  • Retinal Diseases / genetics
  • Sjogren's Syndrome / diagnosis
  • Sjogren's Syndrome / genetics


  • Phosphoproteins
  • Exodeoxyribonucleases
  • TREX2 protein, human
  • three prime repair exonuclease 1