Effects of OCT1 knockdown in castration-resistant prostate cancer cells
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ABSTRACT:
PROVIDER: PRJNA508978 | ENA |
REPOSITORIES: ENA
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Project description:Prostate cancer is the most common cancer in men and AR downstream signalings promote prostate cancer cell proliferation. Although initially hormone-deprovation therapy is effective to inhibit cancer progression, most of cancers relapse as castration-resistant prostate cancer (CRPC). Therefore, we examined the effect of AR interacting partner OCT1 in CRPC cells. In order to investigate the OCT1 function in CRPC cells, we performed gene expression in AR-positive CRPC cell line, 22Rv1, after siOCT1 treatment. We also treated cells with vehicle or dihydrotestosterone (DHT) to analyzed the effects of OCT1 on AR function.
2019-03-01 | GSE123517 | GEO
Project description:Prostate cancer is the most common cancer in men and AR downstream signalings promote prostate cancer cell proliferation. Androgen-deprivation therapy is the first-line treatment strategy for advanced prostate cancer. However, many tumors develop to castration-resistant prostate cancer (CRPC) and relapse. Thus, analyzing key factors for development of CRPC is important. We found PSF functions as RNA binding protein and transcription factor to promote castration-resistant tumor growth. High expression of PSF in metastatic prostate cancer tissue indicates the clinical relevance. In order to investigate the PSF function in CRPC cells, we performed gene expression in CRPC model cells derived from AR-positive prostate cancer cell lines after siPSF treatment.
2017-12-24 | GSE100239 | GEO
Project description:Prostate cancer is the most common cancer in men and AR downstream signalings promote prostate cancer cell proliferation. Although initially hormone-deprovation therapy is effective to inhibit cancer progression, most of cancers relapse as castration-resistant prostate cancer (CRPC). In this study, we examined the effect of OCT4 or NRF1 knockdown in CRPC cells. In order to investigate the OCT4 and NRF1 function in CRPC cells, we performed gene expression in AR-positive CRPC cell line, 22Rv1, AR-negative CRPC cell lines, PC3-CR (Cabazitaxel resistant), DU145, and DU145-CR, after siOCT4 (10 nM) or siNRF1 (10 nM) treatment. We also treated cells with vehicle, ribavirin (riba), or dihydrotestosterone (DHT) to analyzed the effects of thiese drug treatments.
2021-05-01 | GSE146656 | GEO
Project description:Effects of OCT4/NRF1 knockdown in castration-resistant prostate cancer cells
| PRJNA611585 | ENA
Project description:Prostate cancer is the most common cancer in men and AR downstream signalings promote prostate cancer cell proliferation. Oct1 is an AR interacting partner and regulates the transcriptional activity of AR. In order to investigate the Oct1 function in prostate cancer cells, we performed gene expression in AR-positive prostate cancer cell lines after siOct1 or pyrrole-imidazole (PI) polyamide targeting Oct1-binding treatment. We also treated cells with vehicle or androgen to analyze the effects of Oct1 on AR function. Observation of androgen dependent gene expression changes after treatment with siOct1 or polyamide targeting Oct1 with microarray.
2016-04-01 | E-GEOD-77650 | biostudies-arrayexpress
Project description:Targeting Oct1 genomic function inhibits androgen receptor signaling and castration-resistant prostate cancer growth
| PRJNA311510 | ENA
Project description:Prostate cancer is the most common cancer in men and AR downstream signalings promote prostate cancer cell proliferation. Oct1 is an AR interacting partner and regulates the transcriptional activity of AR. In order to investigate the Oct1 function in prostate cancer cells, we performed gene expression in AR-positive prostate cancer cell lines after siOct1 or pyrrole-imidazole (PI) polyamide targeting Oct1-binding treatment. We also treated cells with vehicle or androgen to analyze the effects of Oct1 on AR function.
2016-04-01 | GSE77650 | GEO
Project description:Prostate cancer is the most common, lethal malignancy in men. Although androgen withdrawal therapies are used to treat advanced disease, progression to a castration-resistant, end-stage is the usual outcome. In this study, the tested hypothesis was that the androgen receptor remains essential for the growth and viability of castration-resistant disease. Knocking down the androgen receptor in well-established tumors grown in castrated mice caused growth arrest, decreased serum PSA, and frequently regression and total eradication of tumors. Growth control of castration-resistant tumors appeared to be linked to the extent of androgen receptor knockdown, which triggers upregulation of many genes involved in apoptosis, cell cycle arrest, and inhibition of tumorigenesis and protein synthesis. Our findings provide proof of principle that in vivo knockdown of the androgen receptor is a viable therapeutic strategy to control and possibly eradicate prostate cancers that have progressed to the lethal castration-resistant state. C4-2 human prostate cancer cells stably expressing a tetracycline-inducible AR-targeted short hairpin RNA (shRNA) or scrambled shRNA were generated. These two cell lines were incubated in the absence of androgens with or without doxycycline hyclase (DOX). Comparison analysis of the gene expression profiles of C4-2 cells stably expressing AR shRNA + DOX and control cells (AR shRNA - DOX and scrambled shRNA ± DOX) was conducted to identify differentially regulated genes due to AR knockdown after normalization and data filtering. Genes were considered to be significantly different if the expression in the induced AR shRNA + DOX cells was at least 1.7-fold greater or 1.7-fold less than that seen in the control cells, with P< 0.05.
2010-06-23 | E-GEOD-13332 | biostudies-arrayexpress
Project description:Prostate cancer is the most common, lethal malignancy in men. Although androgen withdrawal therapies are used to treat advanced disease, progression to a castration-resistant, end-stage is the usual outcome. In this study, the tested hypothesis was that the androgen receptor remains essential for the growth and viability of castration-resistant disease. Knocking down the androgen receptor in well-established tumors grown in castrated mice caused growth arrest, decreased serum PSA, and frequently regression and total eradication of tumors. Growth control of castration-resistant tumors appeared to be linked to the extent of androgen receptor knockdown, which triggers upregulation of many genes involved in apoptosis, cell cycle arrest, and inhibition of tumorigenesis and protein synthesis. Our findings provide proof of principle that in vivo knockdown of the androgen receptor is a viable therapeutic strategy to control and possibly eradicate prostate cancers that have progressed to the lethal castration-resistant state.
2009-02-20 | GSE13332 | GEO
Project description:Prostate cancer is the most common cancer in men and AR downstream signalings promote prostate cancer cell proliferation. Although initially hormone-deprovation therapy is effective to inhibit cancer progression, most of cancers relapse as castration-resistant prostate cancer (CRPC). RNA binding protein PSF is upregulated in CRPC tissues comparedd with hormone-sensitive prostate cancer. Therefore, we examined the effect of newly developed small molecules targeting PSF in CRPC cells. In order to investigate the effect of PSF inhibiton in CRPC cells, we performed gene expression analysis in AR-negative CRPC cell line, DU145. We treated cells with vehicle, No.10-3, or C-30, which are supposed to inhibit PSF function.
2024-09-01 | GSE243001 | GEO