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- Title
Analysis of Elastin Metabolism in Patients with Late-onset Focal Dermal Elastosis.
- Authors
Tajima, Shingo; Tanaka, Nobuhiko; Ohnishi, Yoshihiro; Ishibashi, Akira; Kajiya, Hiroyoshi; Osakabe, Toru; Seyama, Yoshiyuki; Sakamoto, Hiroshi
- Abstract
Late-onset focal dermal elastosis has recently been described as new clinical entity characterized by pseudoxanthoma elasticum-like eruptions and an accumulation of normal-appearing elastic fibres in the dermis. Elastin and collagen contents of the skin of 2 patients were 2- and 1.4-fold higher than in the skin of controls, respectively. A focal accumulation of elastin but not of fibrillin-1 was observed by immunohistochemical staining. The levels of type I and III collagen and elastin mRNAs isolated from cultured patient fibroblasts were elevated 2-3-fold compared with control fibroblasts. There was no significant change in the excretion of elastin peptides in the urine of patients and controls. These results suggest that the focal accumulation of elastic fibres in the patient skin may be related to overexpression of elastin rather than to altered degradation of elastin.
- Subjects
ELASTIN; SKIN diseases; PHYSIOLOGY; PATIENTS
- Publication
Acta Dermato-Venereologica, 1999, Vol 79, Issue 4, p285
- ISSN
0001-5555
- Publication type
Article
- DOI
10.1080/000155599750010670