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Expression profile of H3K4 demethylases with their clinical and pathological correlation in patients with clear cell renal cell carcinoma.

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OBJECTIVE Clear cell renal cell carcinoma (ccRCC) is one of the deadly diseases with poor metastatic disease prognosis. There is an urgent need to explore the potential molecular markers which… Click to show full abstract

OBJECTIVE Clear cell renal cell carcinoma (ccRCC) is one of the deadly diseases with poor metastatic disease prognosis. There is an urgent need to explore the potential molecular markers which can improve the prognosis of the disease. Histone demethylases have emerged as a powerful tool for cancer prognosis and therapeutics during the last decade. The implications of demethylases of histone 3 lysine 4 (H3K4) in ccRCC are however unrevealed. We therefore evaluated the expression of H3K4 demethylases in ccRCC, with emphasis on their clinical significance as a prognostic marker. METHODS Total 50 histopathological confirmed cases of ccRCC were enrolled in the study. The expression of seven H3K4 demethylases was determined by Real-Time PCR using gene specific primers and correlated with tumor stage, grade and metastasis. Receiver operator characteristics (ROC) curve analysis was performed to evaluate the prognostic significance of H3K4 demethylases. RESULTS The median age of the patients was 54 years with predominance of male patients by 2.6-fold. Among seven genes viz FBXL10, LSD1, LSD2, KDM5A, KDM5B, KDM5C and KDM5D analyzed, LSD2 was found to be significantly associated with tumor stage and metastasis. The optimal cut-off value for LSD2 was 3.2 as calculated from ROC curve analysis for metastasis as well as TNM stage with area under curve of 0.74 and 0.78 respectively. In addition, LSD2 expression showed significant positive correlation with LSD1 expression in tumor metastasis. CONCLUSION The expression of LSD2 was associated with higher TNM stage and metastasis of the tumor and thus, might serve as a useful marker for ccRCC progression.

Keywords: h3k4; h3k4 demethylases; metastasis; expression; clear cell

Journal Title: Gene
Year Published: 2020

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