Table I.

Pathologic evaluation of skin lesions after tape stripping

Treatment groups Epidermis thickness Ulceration Intraepithelial inflammation Dermal inflammation Panniculum inflammation Total disease score 
(NZBxNZW)F1 mice 2.9 ± 1.7 1.6 ± 0.2 1.0 ± 0.16 2.3 ± 0.14 1.7 ± 0.12 8.4 ± 0.6 
C57BL/6 mice 0.4 ± 0.3a 0.4 ± 0.4b 0.4 ± 0.4b 0.8 ± 0.2a 1.4 ± 0.3b 3.4 ± 0.8a 
129 mice 1.0 ± 0.2a 0.0 ± 0.0a 0.0 ± 0.0a 1.6 ± 0.2a 1.2 ± 0.2a 3.1 ± 0.4a 
(NZBxNZW)F1 + IRS 954 (pre-injury) 0.7 ± 0.2a 0.0 ± 0.0a 0.2 ± 0.2b 1.3±0.2a 0.8 ± 0.1a 3.2 ± 0.5a 
(NZBxNZW)F1 + IRS 954 (therapeutic) 1.0 ± 0.2a 0.2 ± 0.1a 0.2 ± 0.2a 1.2 ± 0.1a 1.0 ± 0.0a 3.5 ± 0.4a 
(NZBxNZW)F1 depleted of PDCs 1.4 ± 0.3b 0.1 ± 0.1a 0.1 ± 0.1b 1.4 ± 0.2a 1.0 ± 0.2a 4.0 ± 0.5a 
Treatment groups Epidermis thickness Ulceration Intraepithelial inflammation Dermal inflammation Panniculum inflammation Total disease score 
(NZBxNZW)F1 mice 2.9 ± 1.7 1.6 ± 0.2 1.0 ± 0.16 2.3 ± 0.14 1.7 ± 0.12 8.4 ± 0.6 
C57BL/6 mice 0.4 ± 0.3a 0.4 ± 0.4b 0.4 ± 0.4b 0.8 ± 0.2a 1.4 ± 0.3b 3.4 ± 0.8a 
129 mice 1.0 ± 0.2a 0.0 ± 0.0a 0.0 ± 0.0a 1.6 ± 0.2a 1.2 ± 0.2a 3.1 ± 0.4a 
(NZBxNZW)F1 + IRS 954 (pre-injury) 0.7 ± 0.2a 0.0 ± 0.0a 0.2 ± 0.2b 1.3±0.2a 0.8 ± 0.1a 3.2 ± 0.5a 
(NZBxNZW)F1 + IRS 954 (therapeutic) 1.0 ± 0.2a 0.2 ± 0.1a 0.2 ± 0.2a 1.2 ± 0.1a 1.0 ± 0.0a 3.5 ± 0.4a 
(NZBxNZW)F1 depleted of PDCs 1.4 ± 0.3b 0.1 ± 0.1a 0.1 ± 0.1b 1.4 ± 0.2a 1.0 ± 0.2a 4.0 ± 0.5a 

15–23 d after tape stripping, each of the histological features was scored singularly and graded 1 to 3 as indicated in Materials and methods; the overall disease score was calculated by combining the scores for each parameter. Data are from three to four different independent experiments (n = 12–30; mean ± SEM).

a

P < 0.001 as compared with the (NZBxNZW)F1 group.

b

P < 0.05 as compared with the (NZBxNZW)F1 group.

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