Abstract
Prostate cancer (PCa) is one of the most common cancers worldwide but it presents many subtypes and patient heterogeneity. It is necessary to discriminate localised not aggressive PCa and metastatic cancer in order to better define the personalised treatment. The identification of an appropriate biomarker to combine with Gleason grading system, that is one of the most important prognostic factors in prostate cancer outcome, remains a major clinical issue. We have tested AT-rich interactive domain 1A (ARID1A) in prostate tissue is order to verify its possible role as morphological marker for prostate cancer progression. ARID1A is a tumour suppressor protein playing a pivotal role in chromatin remodelling during transcriptional regulation. It was decreased in many cancers correlating with tumour aggressiveness. Our data shown that ARID1A had a nuclear staining and that it is significantly decreased in prostate cancers suggesting that it can be involved in this neoplasm but it is not able to discriminate prostate cancer progression.
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