Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2008
[Expression of E-cadherin, beta-catenin and cyclin D1 in epidermal skin lesions of patients with active psoriasis vulgaris].
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Li Zheng-xiao, Ji Fan-pu, Peng Zhen-hui, Wang Ke
Аннотация
OBJECTIVE: To examine the expressions of E-cadherin, beta-catenin and cyclin D1 in the skin lesions of patients with psoriasis vulgaris, and understand their possible roles in keratinocyte hyperproliferation in these patients.
METHODS: Immunohistochemistry was performed to detect the expressions of E-cadherin, beta-catenin and cyclin D1 in the normal skin tissues and psoriatic lesions.
RESULTS: In normal skin tissues, positive staining for E-cadherin and beta-catenin was detected in all layers of the normal epidermis at the sites of cell-cell junctions, and downregulation of E-cadherin and beta-catenin expression was found in the granular layer and basal layer of the psoriatic lesions. Cyclin D1 overexpression was observed mainly in the basal layer of the lesions, which was correlated to abnormal expression of beta-catenin.
CONCLUSION: Downregulation of E-cadherin and beta-catenin expression and cyclin D1 overexpression in psoriatic skin are probably involved in keratinocyte hyperproliferation in psoriasis vulgaris.
METHODS: Immunohistochemistry was performed to detect the expressions of E-cadherin, beta-catenin and cyclin D1 in the normal skin tissues and psoriatic lesions.
RESULTS: In normal skin tissues, positive staining for E-cadherin and beta-catenin was detected in all layers of the normal epidermis at the sites of cell-cell junctions, and downregulation of E-cadherin and beta-catenin expression was found in the granular layer and basal layer of the psoriatic lesions. Cyclin D1 overexpression was observed mainly in the basal layer of the lesions, which was correlated to abnormal expression of beta-catenin.
CONCLUSION: Downregulation of E-cadherin and beta-catenin expression and cyclin D1 overexpression in psoriatic skin are probably involved in keratinocyte hyperproliferation in psoriasis vulgaris.