Abstract:
:Human alpha 1(I) and alpha 1(III) procollagen mRNA expression in skin tissue from 15 systemic sclerosis (SSc) patients and from 7 normal control subjects was quantitatively analyzed using in situ hybridization. The grains accumulating in each area, representing procollagen mRNA expression per cell, were counted. To normalize the results from each subject, the number of cells and the number of grains per cell were divided by the area of the skin specimen (in square millimeters). The number of cells per square millimeter expressing alpha 1(I) and alpha 1(III) procollagen mRNA in SSc skin was significantly elevated compared with normal control skin (both P < 0.01). The number of grains per cell per square millimeter expressing alpha 1(III) procollagen mRNA in SSc skin was also significantly elevated compared with normal control skin (P < 0.01). The relationship between procollagen mRNA expression and the histological findings in SSc was also studied. The numbers of cells and grains per cell per square millimeter expressing alpha 1(I) procollagen mRNA in fibrotic zone SSc skin were significantly elevated compared with normal control skin (both P < 0.01). The numbers of cells and grains per cell per square millimeter expressing alpha 1(III) procollagen mRNA in SSc skin were significantly elevated compared with normal control skin (both P < 0.01) and with border zone SSc skin (number of cells P < 0.01, number of grains P < 0.05). These results indicate an increase in the number of cells showing elevated expression of alpha 1(I) and alpha 1(III) procollagen mRNA, and a close relationship between alpha 1(I) and alpha 1(III) procollagen mRNA expression and the histological findings in SSc.
journal_name
Arch Dermatol Resjournal_title
Archives of dermatological researchauthors
Ohtsuka T,Koibuchi N,Sakai H,Yamakage A,Yamazaki Sdoi
10.1007/s004030050458keywords:
subject
Has Abstractpub_date
1999-11-01 00:00:00pages
575-82issue
11eissn
0340-3696issn
1432-069Xjournal_volume
291pub_type
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