A study of the abnormalities of human epiderm in keloids and hypertrophic scars / 中华外科杂志
Chinese Journal of Surgery
;
(12): 845-848, 2004.
Article
Dans Chinois
| WPRIM
| ID: wpr-360949
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the abnormalities of human epiderm in keloids and hypertrophic scars.</p><p><b>METHODS</b>Biopsies from ten untreated keloids (duration of disease 3 - 30 years) and ten hypertrophic scars (duration of disease 6 - 10 months) and five normal adult skin specimens. Total RNA was isolated from normal adult skin. A cDNA fragment (base 5941 - 6481 bp) of the full-length human Tenascin-C cDNA was synthesized by polymerase chain reaction and subcloned in pGEM-T-easy. Dioxigen-labeled anti-sense and sense probes were synthesized by using a Sp6/T7 in vitro RNA synthesis kit in the present of Dig-UTP. In situ hybridization was performed on 4% paraformaldehyde-fixed and wax-embedded sections of keloids and hypertrophic scars. NBT-NCIP was used in color detection. Immunohistochemical procedure. The sections were incubated with antibodies (anti-Tenascin-C, anti-CK-16 and anti-Ki-67). Ultrasensitive Streptavidin Peroxidase staining was performed following established procedures.</p><p><b>RESULTS</b>The study show that the proliferation of epidermal keratinocytes in keloids and hypertrophic scars is very clear. The expressions of Tenascin-C mRNA in keloids epidermal keratinocytes markedly increased in contrast with epidermal keratinocytes of hypertrophic scars and adult skin. The CK-16 and Ki-67 stainings significantly enhanced in the epidermal keratinocytes of keloids and hypertrophic scars.</p><p><b>CONCLUSIONS</b>The different expressions of Tenascin-C, CK-16 and Ki-67 among normal adult skin, keloids and hypertrophic scars show the abnormalities of epidermal keratinocytes proliferation and differentiation in keloids and hypertrophic scars.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Anatomopathologie
/
Immunohistochimie
/
Hybridation in situ
/
Cicatrice hypertrophique
/
Ténascine
/
Antigène KI-67
/
Épiderme
/
Génétique
/
Hyperplasie
/
Chéloïde
Limites du sujet:
Femelle
/
Humains
/
Mâle
langue:
Chinois
Texte intégral:
Chinese Journal of Surgery
Année:
2004
Type:
Article
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