Dermal expression of laminin-332 and type IV collagen in humans with severe sepsis.

Abstract:

BACKGROUND:An intact basement membrane at the dermal-epidermal junction is essential to the viability of the skin. The effect of sepsis on the basement membrane is unknown. METHODS:Skin biopsies were used to study basement membrane structure in severe sepsis (Day 1). Subsequent biopsies were taken on Day 8 and at 3 months in the survivors. Immunohistochemical staining was undertaken using laminin-223 and type IV collagen. Twenty patients with severe sepsis and four control subjects were included in the analysis. RESULTS:Intensive care unit mortality was 4/20, and total 30-day mortality was 5/20. Exactly, 7/17 of patients with severe sepsis exhibited weak or absent laminin-332 expression and 11/15 exhibited weak or absent type IV collagen expression compared with 0/4 of control subjects on Day 1 in intact skin. The proportion of sepsis patients with weak or absent laminin-332 expression was 5/11 on Day 8 and fell to 1/7 at 3 months. The proportion of sepsis patients with weak or absent type IV collagen expression was 10/11 on Day 8 and 4/7 at 3 months. CONCLUSION:These findings suggest that basement membrane formation may be compromised in patients with severe sepsis.

authors

Koskela M,Gäddnäs F,Koivukangas V,Oikarinen A,Laurila J,Kallioinen M,Ala-Kokko TI

doi

10.1111/aas.12539

subject

Has Abstract

pub_date

2015-09-01 00:00:00

pages

1009-14

issue

8

eissn

0001-5172

issn

1399-6576

journal_volume

59

pub_type

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