Rare Diseases Symptoms Automatic Extraction

DNA helicases associated with genetic instability, cancer, and aging.

[werner syndrome]

DNA helicases have essential roles in the maintenance of genomic -stability. They have achieved even greater prominence with the discovery that mutations in human helicase genes are responsible for a variety of genetic disorders and are associated with tumorigenesis. A number of missense mutations in human helicase genes are linked to chromosomal instability diseases characterized by age-related disease or associated with cancer, providing incentive for the characterization of molecular defects underlying aberrant cellular phenotypes. In this chapter, we discuss some examples of clinically relevant missense mutations in various human DNA helicases, particularly those of the Iron-Sulfur cluster and RecQ families. Clinically relevant mutations in the XPD helicase can lead to Xeroderma pigmentosum, Cockayne's syndrome, Trichothiodystrophy, or COFS syndrome. FANCJ mutations are associated with Fanconi anemia or breast cancer. Mutations of the Fe-S helicase ChlR1 (DDX11) are linked to Warsaw Breakage syndrome. Mutations in the RecQ helicases BLM and WRN are linked to the cancer-prone disorder Bloom's syndrome and premature aging condition Werner syndrome, respectively. RECQL4 mutations can lead to Rothmund-Thomson syndrome, Baller-Gerold syndrome, or RAPADILINO. Mutations in the Twinkle mitochondrial helicase are responsible for several neuromuscular degenerative disorders. We will discuss some insights gained from biochemical and genetic studies of helicase variants, and highlight some hot areas of helicase research based on recent developments.

Diseases presenting "breast cancer" symptom

  • acute rheumatic fever
  • aromatase deficiency
  • carcinoma of the gallbladder
  • child syndrome
  • cowden syndrome
  • cutaneous mastocytosis
  • dedifferentiated liposarcoma
  • esophageal squamous cell carcinoma
  • junctional epidermolysis bullosa
  • kindler syndrome
  • liposarcoma
  • lymphangioleiomyomatosis
  • oral submucous fibrosis
  • proteus syndrome
  • severe combined immunodeficiency
  • systemic capillary leak syndrome
  • von hippel-lindau disease
  • waldenström macroglobulinemia
  • werner syndrome
  • wiskott-aldrich syndrome

This symptom has already been validated