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English Abstract
Journal Article
Review
[Matrix metalloproteinases and their tissue inhibitors in malignancies of the female genital tract].
Harefuah 2003 November
The matrix metalloproteinases (MMPs) are a family of proteolytic enzymes, which are capable of degradation of the proteins composing the extracellular matrix and basement membrane. Their proteolytic activity depends on their binding to metal Zinc and is controlled by tissue inhibitors of MMP (TIMPs). Degradation of the extracellular matrix and basement membrane is an important component of the process of tumor invasiveness, progression, angiogenesis and metastatic spread. Since MMPs may serve as markers of tumor behavior and as predictors of survival and since synthetic inhibitors of MMP may have a place in the treatment of cancer, researching MMPs and their tissue inhibitors in malignant diseases has attracted growing attention. Studies on MMPs and their tissue inhibitors in malignancies of the female genital tract have shown the following: 1) In ovarian carcinoma and cervical carcinoma, over-expression of MMP-2 and MMP-9 is associated with invasiveness, metastatic spread and poor prognosis; 2) In endometrial carcinoma, MMP-7 (matrilysin) is the main MMP associated with invasiveness, metastatic spread and poor prognosis; 3) In cervical intra-epithelial neoplasia (CIN), measuring MMP-2 can assist in identifying high-risk for progression CIN I and CIN II; 4). In vulvar squamous cell carcinoma, over-expression of MMP-13 is associated with invasiveness, metastatic spread and poor prognosis. It is speculated that using synthetic drugs that inhibit MMPs in combination with conventional chemotherapy may contribute to the improvement of treatment results in cancer patients.
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