2005
DOI: 10.1002/jso.20386
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Increased expression of matrix metalloproteinase‐2 and 9 and human papilloma virus infection are associated with malignant transformation of sinonasal inverted papilloma

Abstract: Precancerous lesions of IP exhibited elevated levels of MMP-2 and 9 and these expression may be associated with early events in IP carcinogenesis. HPV infection would be an early event in a multistep process of malignant formation of IP.

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Cited by 34 publications
(37 citation statements)
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“…The MMP-9 gene is encoded on chromosome 20 and its expression is under the control of a 2.2-kb upstream regulatory sequence harboring binding sites for AP-1, NF-B, Sp1, and others (5). MMP-9 expression is increased in malignant cancers when compared with benign tumors and non-invasive ones, and there is compelling in vitro and in vivo evidence for a role of MMP-9 in tumor invasion and angiogenesis (6,7). Its dramatic overexpression in cancer and various inflammatory conditions suggest that this protease is a potential target for the development of novel therapeutic interventions (8).…”
Section: Matrix Metalloproteinases (Mmps)mentioning
confidence: 99%
“…The MMP-9 gene is encoded on chromosome 20 and its expression is under the control of a 2.2-kb upstream regulatory sequence harboring binding sites for AP-1, NF-B, Sp1, and others (5). MMP-9 expression is increased in malignant cancers when compared with benign tumors and non-invasive ones, and there is compelling in vitro and in vivo evidence for a role of MMP-9 in tumor invasion and angiogenesis (6,7). Its dramatic overexpression in cancer and various inflammatory conditions suggest that this protease is a potential target for the development of novel therapeutic interventions (8).…”
Section: Matrix Metalloproteinases (Mmps)mentioning
confidence: 99%
“…Epstein-Barr virus (International Agency for Research on Cancer, 1997) and human papilloma virus infections (Katori et al, 2006) have also been implicated.…”
Section: Human Effects Of Rodent Nasal Carcinogensmentioning
confidence: 99%
“…Significant increase of matrix metalloproteinase (MMP)-2 and 9 were also observed in IP with moderate and severe dysplasia [9]. Fascin over-expression in high-grade dysplastic epithelium in sinonasal IP may also correlate to EMMPRIN.…”
Section: Discussionmentioning
confidence: 99%
“…Various changes in protein expression have been described in dysplastic and transformed IP including increased matrix metalloproteinase (MMP)-2 and 9 [9], aberrant p53 up-regulated p21, p27, p16, and MIB 1 labeling index [4]. Further, expression of the gene p63, which bears a strong homology to the gene p53, correlates with the proliferation index in IP [10].…”
Section: Introductionmentioning
confidence: 99%