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Archives of Dermatological Research

, Volume 276, Issue 3, pp 186–194 | Cite as

Dermatopathological studies on skin lesions of MRL mice

  • F. Furukawa
  • H. Tanaka
  • K. Sekita
  • T. Nakamura
  • Y. Horiguchi
  • Y. Hamashima
Original Contributions

Summary

The MRL-lpr/lpr(MRL/l) mouse is a new animal model for human systemic lupus erythematosus (SLE) and skin lesions with hair loss and scab formation are one of the characteristic manifestations in this mouse. We investigated the histopathology of the skin lesions in MRL/l mice and studied the related autoimmune phenomenon. Light microscopical observations revealed hyperkeratosis, acanthosis, hypergranulosis, liquefaction, vasodilation in the dermis and T-cell infiltration into the dermis at the age of 5 months (mo). Immunohistological studies showed the presence of immunoglobulins and/or complement depositions at the dermal-epidermal junction (DEJ). In some mice there was deposition of immunoglobulin at the DEJ at 2 mo and in 90%–100% of MRL/l mice at over 5 mo. Temporal relationship was present among cutaneous immunoglobulin depositions, the occurrence of anti-DNA antibodies and proteinuria. These findings suggest that MRL/l mice might provide a new aid for studying the biological mechanisms of the development of skin lesions in human SLE.

Key words

MRL/l mouse New Zealand mouse Lupus band test Anti-DNA antibodies Proteinuria 

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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • F. Furukawa
    • 1
  • H. Tanaka
    • 1
  • K. Sekita
    • 1
  • T. Nakamura
    • 1
  • Y. Horiguchi
    • 2
  • Y. Hamashima
    • 1
  1. 1.Department of Pathology, Faculty of MedicineKyoto UniversityKyotoJapan
  2. 2.Department of Dermatology, Faculty of MedicineKyoto UniversityKyotoJapan

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