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Several breast, colorectal, prostate, stomach and pancreatic cancers along with a few squamous cell carcinomas, ovarian and urothelial cancers displayed moderate to strong cytoplasmic and membranous positivity. Remaining cancer tissues were weakly stained or negative.
The protein encoded by this gene is a homodimeric integral membrane gelatinase belonging to the serine protease family. It is selectively expressed in reactive stromal fibroblasts of epithelial cancers, granulation tissue of healing wounds, and malignant cells of bone and soft tissue sarcomas. This protein is thought to be involved in the control of fibroblast growth or epithelial-mesenchymal interactions during development, tissue repair, and epithelial carcinogenesis. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2014]