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2016 ; 61
(3
): 301-7
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Role of Osteopontin in Psoriasis: An Immunohistochemical Study
#MMPMID27293251
Abdel-Mawla MY
; El-Kasheshy KA
; Ghonemy S
; Al Balat W
; Elsayed AA
Indian J Dermatol
2016[May]; 61
(3
): 301-7
PMID27293251
show ga
BACKGROUND: Osteopontin (OPN) has been postulated to have a role in several
T-helper (Th) 1 and Th 17-mediated diseases including psoriasis (PS), through
multiple mechanisms sharing in the onset and worsening of PS, OPN shares in
induction of keratinocyte proliferation through inhibiting keratinocyte
apoptosis, OPN acts as a proinflammatory agent that participates in the
upregulation of Th cell lineages, among which are the Th 1 and Th 17 cells. AIMS
AND OBJECTIVES: The aim of this study was to explore the possible role of OPN in
the pathogenesis of PS. MATERIALS AND METHODS: This case-control study was
carried out on 18 patients of chronic plaque PS (mean age 37.61 ± 14.48) and a
control group of 18 apparently healthy volunteers (mean age 41.11 ± 11.02 years).
Severity of PS was assessed using the PS area and severity index score. Two skin
biopsies were taken from psoriatic patients. The first was taken from the
lesional skin and the other from a counter apparently healthy site. RESULTS: Our
results showed statistically significant differences in the expression of OPN,
between lesional and nonlesional skin as well as between nonlesional skin and
control group (P ? 0.001). In addition, there was a significant difference in the
expression of OPN, between control and lesional group. CONCLUSIONS: OPN
involvement in PS enlarges the list of cytokines able to stimulate the
inflammatory response in this disease, anti-OPN antibodies, may eventually become
a useful therapeutic approach in PS.