1998
DOI: 10.1046/j.1523-1747.1998.00138.x
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Activation of Tissue Inhibitor of Metalloproteinases-3 (TIMP-3) mRNA Expression in Scleroderma Skin Fibroblasts

Abstract: Excessive accumulation of fibrillar collagens is a hallmark of the cutaneous fibrosis in both systemic and localized scleroderma. Turnover of the collagenous extracellular matrix is dependent on the balance between collagenolytic matrix metalloproteinases and their specific inhibitors. We have examined the expression of the novel, matrix associated tissue inhibitor of metalloproteinases-3 (TIMP-3) in normal and scleroderma skin fibroblasts in culture and in vivo. The levels of TIMP-3 mRNA were elevated up to 2… Show more

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Cited by 61 publications
(39 citation statements)
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“…To our knowledge, there are no data on TIMP-3 in other cutaneous disorders associated with apoptosis, such as lichen planus or erythema multiforme. The finding of TIMP-3 up-regulation in the stroma of high-grade and late graft-versus-host disease is in accordance with our earlier results that TIMP-3 is also overexpressed in other skin disorders associated with severe dermal fibrosis, such as scleroderma (12).…”
Section: Discussionsupporting
confidence: 92%
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“…To our knowledge, there are no data on TIMP-3 in other cutaneous disorders associated with apoptosis, such as lichen planus or erythema multiforme. The finding of TIMP-3 up-regulation in the stroma of high-grade and late graft-versus-host disease is in accordance with our earlier results that TIMP-3 is also overexpressed in other skin disorders associated with severe dermal fibrosis, such as scleroderma (12).…”
Section: Discussionsupporting
confidence: 92%
“…Lack of MMP expression and up-regulation of dermal MMP inhibitors may lead to the accumulation of extracellular matrix and fibrosis, both important histological findings in chronic cutaneous graft-versus-host disease. In fact, we have previously demonstrated TGF-␤-mediated activation of TIMP-3 in sclerodermatous skin fibroblasts in culture (12).…”
Section: Discussionmentioning
confidence: 91%
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“…TIMP-3 regulation in tenocytes has not been examined to our knowledge, but in other cell types its expression, like CTGF and ADAMTS-1, is induced by TGFb both in vitro and in clinical scenarios involving fibrosis. 21,22 It has been postulated that elevated TIMP-3 expression in fibrotic conditions may contribute to the development of excessive scarring by inhibiting the turnover of reparative collagen in healing wounds. 22 In summary, SC injection significantly influenced several TGFb-induced tendon genes, and further work will be required to explore the biology of these particular pathways.…”
Section: Gene Expression Changes Mediated By Mast Cell Degranulationmentioning
confidence: 99%
“…In addition, elevated serum TIMP-1 levels have been shown to correlate with disease activity and the early phase in SSc patients [29,30]. Activated skin fibroblasts were reported to express elevated levels of TIMP-3 mRNA in culture and in vivo [31]. However, cultured fibroblasts from patients with early SSc exhibited higher levels of MMP-1, MMP-3 and TIMP-1 mRNA expression than those from normal controls, while TIMP-1 mRNA expression remained increased, but MMP-1 and MMP-3 mRNA expression was decreased in fibroblasts from patients with mid-stage SSc [6].…”
Section: Discussionmentioning
confidence: 99%