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- W4361953550 abstract "<div>AbstractPurpose:<p>Metastasis is the major cause of mortality in prostate cancer patients. Factors such as genetic makeup and race play critical role in the outcome of therapies. This study was conducted to investigate the relevance of <i>BMI1</i> in metastatic prostate cancer disease in Caucasian and African-Americans.</p>Experimental Design:<p>We employed race-specific prostate cancer models, clinical specimens, clinical data mining, gene-microarray, transcription-reporter assay, chromatin-immunoprecipitation (ChIP), IHC, transgenic-(tgfl/fl) zebrafish, and mouse metastasis models.</p>Results:<p>BMI1 expression was observed to be elevated in metastatic tumors (lymph nodes, lungs, bones, liver) of Caucasian and African-American prostate cancer patients. The comparative analysis of stage III/IV tumors showed an increased BMI1 expression in African-Americans than Caucasians. TCGA and NIH/GEO clinical data corroborated to our findings. We show that <i>BMI1</i> expression (i) positively correlates to metastatic (<i>MYC, VEGF, cyclin D1</i>) and (ii) negative correlates to tumor suppressor (<i>INKF4A/p16, PTEN</i>) levels in tumors. The correlation was prominent in African-American tumors. We show that BMI1 regulates the transcriptional activation of <i>MYC, VEGF, INKF4A/p16</i>, and <i>PTEN</i>. We show the effect of pharmacological inhibition of BMI1 on the metastatic genome and invasiveness of tumor cells. Next, we show the anti-metastatic efficacy of BMI1-inhibitor in transgenic zebrafish and mouse metastasis models. Docetaxel as monotherapy has poor outcome on the growth of metastatic tumors. BMI1 inhibitor as an adjuvant improved the taxane therapy in race-based <i>in vitro</i> and <i>in vivo</i> models.</p>Conclusions:<p>BMI1, a major driver of metastasis, represents a promising therapeutic target for treating advanced prostate cancer in patients (including those belonging to high-risk group).</p></div>" @default.
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- W4361953550 date "2023-03-31" @default.
- W4361953550 modified "2023-09-25" @default.
- W4361953550 title "Data from <i>BMI1</i> Drives Metastasis of Prostate Cancer in Caucasian and African-American Men and Is A Potential Therapeutic Target: Hypothesis Tested in Race-specific Models" @default.
- W4361953550 doi "https://doi.org/10.1158/1078-0432.c.6527055.v1" @default.
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