Abstract
To correlate matrix metalloproteinase—2 (MMP-2) expression with cervical carcinogenesis, the authors use reverse-transcription polymerase chain reaction to detect MMP-2 mRNA expression in 10 cervical squamous cell carcinoma (SCC), 10 high-grade cervical intraepithelial neoplasia (CIN), and 10 normal tissues. They further detect MMP-2 immunoreactivity of 24 tissue cores in each SCC, high-and low-grade CINs, and a healthy subgroup on a tissue array using integrated optical density (IOD) for number and intensity of stained cells in 345 × 345 pixels. They found the mRNA expression of MMP-2 to be higher in most SCCs (9/10 samples) and high-grade CINs (7/10 samples) but lower in normal tissues. The IOD of MMP-2 was significantly higher in high-grade CIN than in normal and low-grade CIN tissue cores (P <.001 for both) and significantly higher in SCC than in high-grade CIN tissue cores (P <.001). The results show that MMP-2 upregulation confers on tumor cells the ability to degrade the subepithelial basement membrane and subsequently invade the cervix.
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We acknowledge grant support from Chung Shan Medical University (CSMU 95-OM-B-014). We also acknowledge Yi-Chieh Chen and Ken Hsu, who provided kind assistance for the construction and immunohistochemical staining of the cervical tissue array.
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Tee, YT., Han, CP., Ko, JL. et al. Evaluation of Matrix Metalloproteinase—2 Expression in Cervical Carcinogenesis Using Tissue Array and Integrated Optical Density for Immunoreactivity. Reprod. Sci. 14, 719–726 (2007). https://doi.org/10.1177/1933719107307537
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DOI: https://doi.org/10.1177/1933719107307537