2015
DOI: 10.18632/genesandcancer.90
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Tumor cell expression of MMP3 as a prognostic factor for poor survival in pancreatic, pulmonary, and mammary carcinoma

Abstract: Breast, lung, and pancreatic cancers collectively represent one third of all diagnosed tumors and are responsible for almost 40% of overall cancer mortality. Despite improvements in current treatments, efforts to develop more specific therapeutic options are warranted. Here we identify matrix metalloproteinase 3 (MMP3) as a potential target within all three of these tumor types. MMP3 has previously been shown to induce expression of Rac1b, a tumorigenic splice isoform of Rac1. In this study we find that MMP3 a… Show more

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Cited by 80 publications
(59 citation statements)
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References 70 publications
(68 reference statements)
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“…However, MMP-3 was upregulated in prostate cancer cells but downregulated in CAFs isolated from prostate stroma (primary culture) or derived from bone marrow stroma (3D coculture). In prostate cancer specimens, localization of MMP-3 staining was found primarily in tumor cells and much less in the surrounding stroma, similar to the observations in pancreatic, breast, and lung carcinomas 23 , 32 , implying that MMP-3 expression is stage- and cell type-dependent during cancer progression. Physiologically, the stroma of normal tissues functions as a physical barrier against carcinogenesis.…”
Section: Discussionsupporting
confidence: 77%
“…However, MMP-3 was upregulated in prostate cancer cells but downregulated in CAFs isolated from prostate stroma (primary culture) or derived from bone marrow stroma (3D coculture). In prostate cancer specimens, localization of MMP-3 staining was found primarily in tumor cells and much less in the surrounding stroma, similar to the observations in pancreatic, breast, and lung carcinomas 23 , 32 , implying that MMP-3 expression is stage- and cell type-dependent during cancer progression. Physiologically, the stroma of normal tissues functions as a physical barrier against carcinogenesis.…”
Section: Discussionsupporting
confidence: 77%
“…Tumor cells show even higher intracellular gelatinolytic activity (likely from MMP-2) particularly at the invasive tumor front, yet apoptosis is not induced[131]. Like MMP-2, MMP-3 shows intracellular activity being highly associated with apoptosis, except in cancer[132134]. MMP-1, MMP-7, MMP-8, and MMP-9 are also rarely activated intracellularly in healthy cells during times of cellular stress[135], but reliable cancer-related intracellular activity studies regarding these MMPs are scarce.…”
Section: Matrix Metalloproteinases In Cancer: Why Are They Worthwhilementioning
confidence: 99%
“…It has been shown that MMP3 and CCN2 (aka connective tissue growth factor (CTGF)) are often increased in tumor-stroma tissues or patients' serum, and are thus biomarkers correlated with poor prognosis in cancer [18][19][20][21][22]. It has been also shown that MMP3 and CCN2/CTGF promote tumor progression through processes including rapid metastasis and tumor-stroma interactions [23][24][25][26].…”
Section: Introductionmentioning
confidence: 99%