Abstract
ABSTRACT Psoriasis is an immune-mediated skin disease with a potential morbidity in patients. Cold-inducible RNA binding protein (CIRP) is a stress responsive protein having diverse roles in cancer and inflammation. This study aimed to evaluate the expression of CIRP, (serum and tissue), in psoriasis patients and to correlate this expression to the clinico-pathological data of the patients. The serum level and tissue expression of CIRP were compared between 20 patients and 20 healthy controls. Additionally, the association between CIRP level and various clinicopathological parameters was done. The serum level of CIRP was measured by enzyme-linked immunosorbent assay (ELISA) while its tissue expression was detected via immunohistochemistry. CIRP was expressed in the epidermis of all studied cases and controls with nuclear localization. A significant difference in its epidermal expression between lesional, perilesional cases and controls was observed. It was higher in control epidermis than perilesional skin and the lowest in lesional skin. Conversely, the serum CIRP level was significantly higher in psoriasis patients compared to healthy subjects. CIRP seemed to have a significant pathologic role in psoriasis patients with evident difference in its intracellular and extracellular expression levels suggesting a potential difference it its function.
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