title: [Expression of E-cadherin, beta-catenin and cyclin D1 in epidermal skin lesions of patients with active psoriasis vulgaris].
abstract: 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.
  
  
  CONCLUSIONS
  Downregulation of E-cadherin and beta-catenin expression and cyclin D1 overexpression in psoriatic skin are probably involved in keratinocyte hyperproliferation in psoriasis vulgaris.
authors.affiliation: Department of Dermatology, Xi'an Jiaotong University, Xi'an 710004, China. lizhengxiao1979@163.com
authors.forename: Zheng-xiao
authors.initials: ZX
authors.lastname: Li
authors.forename: Fan-pu
authors.initials: FP
authors.lastname: Ji
authors.forename: Zhen-hui
authors.initials: ZH
authors.lastname: Peng
authors.forename: Ke
authors.initials: K
authors.lastname: Wang
mesh_terms: D000328:Adult; D015820:Cadherins / Q000096:biosynthesis*; D019938:Cyclin D1 / Q000096:biosynthesis*; D015536:Down-Regulation; D004817:Epidermis / Q000378:metabolism* / Q000473:pathology; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D011565:Psoriasis / Q000378:metabolism* / Q000473:pathology; D051176:beta Catenin / Q000096:biosynthesis*
chemical_list: D015820:Cadherins; D051176:beta Catenin; D019938:Cyclin D1