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DNA Repair and Skin Disease

  • E. G. Jung
  • Y. Satoh
  • M. H. El-Hefnawi
  • S. Kondo
  • M. Ichihashi
Conference paper

Abstract

Along with replication and transcription, DNA repair should be considered as a normal cellular process. In addition to cellular differentiation, DNA repair may be affected by inborn errors and by exogenous effects as well. In terminally differentiating structures such as epidermis, an alteration of DNA repair entails decrease of activity or retardation of repair processes leading to cytotoxic, mutagenic and oncogenic events under exogenous hazards (such as UV, chemicals, X-ray etc.). Fibroblasts show the UV-induced defect like that in cultured keratinocytes (Kondo). Atrophy, dyspigmentation and tumors are the epidermal endpoints of these events whereas actinic elastosis appears on the dermal level. The heterogenous group of xeroderma pigmentosum (XP) is the best-known and most well-investigated model of a congenital defect of DNA repair and its devasting effects on the skin after UV irradiation. XP is observed in all continents and races. Nevertheless, there are regional differences between the nine subgroups of classical XP A-I and the variant type.

Keywords

Epidermal Cell Xeroderma Pigmentosum Complementation Group Skin Neoplasm Skin Malignancy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • E. G. Jung
    • 1
  • Y. Satoh
    • 2
  • M. H. El-Hefnawi
    • 3
  • S. Kondo
    • 4
  • M. Ichihashi
    • 5
  1. 1.Department of Dermatology, Mannheim Medical SchoolUniversity of HeidelbergMannheimFR Germany
  2. 2.School of MedicineTokyo Medical and Dental UniversityTokyoJapan
  3. 3.Faculty of MedicineAir Shams UniversityCairoEgypt
  4. 4.Department of DermatologyTokyo Medical and Dental UniversityTokyoJapan
  5. 5.Department of DermatologyKobe University School of MedicineKobeJapan

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