Premium
Differential expression of matrix metalloproteinase (MMP)‐2, MMP‐9 and tissue inhibitor of metalloproteinase (TIMP)‐1 and TIMP‐2 in non‐melanoma skin cancer: implications for tumour progression
Author(s) -
O’Grady A,
Dunne C,
O’Kelly P,
Murphy G M,
Leader M,
Kay E
Publication year - 2007
Publication title -
histopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.626
H-Index - 124
eISSN - 1365-2559
pISSN - 0309-0167
DOI - 10.1111/j.1365-2559.2007.02885.x
Subject(s) - matrix metalloproteinase , tissue inhibitor of metalloproteinase , immunohistochemistry , pathology , stroma , basal cell carcinoma , skin cancer , cancer , in situ hybridization , metalloproteinase , medicine , biology , cancer research , gene expression , basal cell , biochemistry , gene
Aims: To investigate the expression of matrix metalloproteinase (MMP)‐2, MMP‐9, and tissue inhibitor of metalloproteinase (TIMP)‐1 and TIMP‐2 in non‐melanoma skin cancer (NMSC) and to compare their expression between different tumour types and with clinicopathological factors. Methods and results: A study of 11 normal skin, 29 Bowen’s disease (BD), 40 squamous cell carcinoma (SCC) and 38 basal cell carcinoma (BCC) samples for MMP‐2, MMP‐9, TIMP‐1 and TIMP‐2 expression was carried out using immunohistochemistry and in situ hybridization. The expression of all metalloproteinases was greater in tumours than in normal skin. MMP‐2 and MMP‐9 expression was more extensive in the stroma of SCC than of BCC or BD. TIMP‐1 expression was greater in the stroma of BCC than of SCC or BD and TIMP‐2 expression was greater in the stroma of SCC than of BD. There was a correlation between increased metalloproteinase expression and depth of lesion (MMP‐2 and TIMP‐2), inflammation (MMP‐2, MMP‐9, TIMP‐1 and TIMP‐2) and microvessel density (MMP‐2, MMP‐9 and TIMP‐2). Conclusions: MMP‐2, MMP‐9, TIMP‐1 and TIMP‐2 play an important role in the pathogenesis of non‐melanoma skin cancer, but differ significantly in their expression levels between the tumour types examined. The immunoexpression of these proteins may be useful indicators of cutaneous cancer invasion and progression.