The expression of syndecan-1 in psoriatic epidermis

Znanstveni rad - Izvorni znanstveni rad

• Autor: Davor Tomas
• Autor: Majda Vučić
• Autor: Mirna Šitum
• Autor: Božo Krušlin
• Autorova ustanova: Sveučilište u Zagrebu; Medicinski fakultet
• Znanstveno / umjetničko područje, polje i grana: BIOMEDICINA I ZDRAVSTVO; Kliničke medicinske znanosti

Sažetak (engleski)

Psoriasis is a chronic inflammatory skin disease characterized by exaggerated keratinocyte proliferation. Current opinion indicates that psoriasis is driven by T cell-mediated immune responses targeting keratinocytes. However, psoriasis cannot be explained solely on the basis of T-cell activation, and it is likely that an intrinsic alteration in epidermal keratinocytes plays a very important role in disease expression. Syndecans comprise a major family of cell surface heparan sulfate proteoglycans. Several studies indicate their role in adhesion, cell-extracellular matrix interactions, migration, keratinocyte proliferation and differentiation, inflammation, and wound healing. To determine the expression of syndecan-1 in psoriasis, skin samples from 29 patients with fully developed psoriasis and skin samples from 14 healthy volunteer persons with no personal or family history of psoriasis were immunohistochemically examined using monoclonal antibody against syndecan-1. The expression of syndecan-1 was analyzed in whole mount section of psoriatic and non-psoriatic skin biopsies under high magnification (400x). In addition, the intensity and topography of reaction in the cell, as well as localization of positive cells in the epidermis were evaluated. Strong syndecan-1 reactivity in epidermal cells in all non-psoriatic and psoriatic samples was observed. Statistical analysis showed no significant differences between two analyzed groups (P > 0.05). In normal skin syndecan-1 was expressed in full thickness of the epidermis. The strongest reaction was observed in membranes and intercellular junctions of spinous and granular layer while basal cells showed weaker expression that was confined to cytoplasm. In psoriatic skin syndecan-1 was expressed in the membrane and intercellular junction of cells located in thickened and elongated rete ridges of the epidermis. The strongest reaction was in basal and suprabasal layers and expression diminished through spinous layer. Cells in spinous layer lose syndecan-1 expression, which is opposite pattern to normal skin. Our results suggest that aberrant skin expression of syndecan-1 may be involved in the development of psoriasis.

• Ključne riječi (engleski): Case-Control Studies; Cell Compartmentation; Epidermis/metabolism; Epidermis/pathology; Female; Gene Expression Profiling; Gene Expression Regulation; Humans; Immunohistochemistry; Keratinocytes/immunology; Keratinocytes/pathology; Male; Middle Aged; Organ Specificity; Psoriasis/metabolism; Syndecan-1/biosynthesis; Syndecan-1/genetics; Syndecan-1/immunology
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran
• Verzija publikacije: Završna verzija rukopisa prihvaćena za objavljivanje (postprint)
• Naslov časopisa: Archives of Dermatological Research
• Brojčani podaci: vol. 300, br. 7, str. 393-395
• p-ISSN: 0340-3696
• DOI: https://doi.org/10.1007/s00403-008-0848-z
• URN:NBN: urn:nbn:hr:105:979701
• Datum objave publikacije: 2008-08
• URL dokumenta: https://doi.org/10.1007/s00403-008-0848-z
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Datum i vrijeme pohrane: 2024-03-28 11:32:33