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Upregulation of integrin expression in benign vulvar warts
Author(s) -
Williams A. T.,
Sexton C. J.,
Han. F.,
Leigh I. M.
Publication year - 1995
Publication title -
the journal of pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.964
H-Index - 184
eISSN - 1096-9896
pISSN - 0022-3417
DOI - 10.1002/path.1711750309
Subject(s) - basal (medicine) , epithelium , biology , epidermis (zoology) , pathology , integrin , population , vulvar diseases , downregulation and upregulation , immunohistochemistry , hpv infection , vulva , cell , anatomy , immunology , medicine , endocrinology , cervical cancer , cancer , biochemistry , genetics , environmental health , gene , insulin
Benign anogenital warts demonstrate features both of hyperproliferation and of aberrant differentation associated with human papillomavirus (HPV) infection. The expression of integrins has been examined in normal vulvar epithelium and benign vulvar warts to determine whether HPV infection is associated with changes in integrin expression, either during terminal differentiation or among the proliferating cell population. The expression of integrins in normal vulvar epithelium was similar to that seen in the epidermis, with little expression of α 1 and expression of α 2 , α 3 , and β 1 at the periphery of basal cells. In vulvar wart epithelium, α 1 was not significantly expressed, but upregulation of α 2 , α 3 , and β 1 was seen at the periphery of cells throughout the basal and spinous layers. In addition, α 2 staining was greater at foci along the basal layer of normal vulva, whilst such heterogeneity was not detected in wart sections. Expression of β 4 and α v was confined to the basal and lateral aspects of normal basal cells, but expressed at the periphery of basal cells and to a lesser extent in epibasal and spinous layers of warts. The observed differences in integrin expression are consistent with those reported in other hyperproliferative epithelia.