To further analyze the consequences of hypoxic upregulation on stem cell proliferation and HIF1α signaling, CSC subpopulations from murine TRAMP-C1 cells (Sca-1(+)/CD49f(+)) as well as from a human prostate cancer cell line (CD44(+)/CD49f(+)) were isolated and characterized.
Our previous animal study found decreased Nrf2 expression through promoter CpG methylation/histone modifications during prostate cancer progression in TRAMP mice.
However, ionizing radiation combined with in situ vaccination with DCs, in which the immunosuppressive scavenger receptor A (SRA/CD204) has been downregulated by lentivirus-mediated gene silencing, profoundly suppressed the growth of two mouse prostate cancers (e.g., RM1 and TRAMP-C2) and prolonged the lifespan of tumor-bearing animals.
Heterozygosity of the Hexim-1 gene in the prostate cancer mice model and the TRAMP-C2 cell line, leads to increased Cdk9-dependent serine phosphorylation on protein targets such as the androgen receptor (AR) and the TGF-β-dependent downstream transcription factors, such as the SMAD proteins.
Finally, transfer of Gprc6a deficiency onto a TRAMP mouse model of prostate cancer significantly retarded prostate cancer progression and improved survival of compound Gprc6a(-/-) /TRAMP mice.
Inhibition of TGF-β in an TRAMP-C2 CaP model in C57BL/6 mice using 1D11 was associated with downregulation of DNMTs and p-ERK and impairment in tumor growth.
To examine the significance of Ron in prostate cancer in vivo, we utilized a genetically engineered mouse model, referred to as TRAMP mice, that is predisposed to develop prostate tumors.
Our results showed that GPR56 suppressed prostate cancer progression in the TRAMP model on a mixed genetic background, similar to its roles in progression of melanoma xenografts.
We report the construction of the recombinant, replication restricted vesicular stomatitis virus encoding SV5-F, which can induce syncytial formation with enhanced oncolytic properties against TRAMP-C2 tumors in an immunocompetent mouse model of prostate cancer.
Recently, it was shown that CLU is silenced by promoter methylation in the murine TRAMP-C2 cell line, as well as in the human prostate cancer cell line LNCaP.
In tumor models, the PIM-1-specific mAb substantially inhibited growth of the human prostate cancer cell line DU145 in SCID mice and the mouse prostate cancer cell TRAMP-C1 in C57BL/6 mice.
The effect of thrombin on tumor cell cycle activation and spontaneous growth was examined in synchronized serum-starved tumor cell lines and a model of spontaneous prostate cancer development in TRAMP mice.
Cross-referencing differentially expressed TRAMP genes to public human prostate array datasets revealed 66 genes with concordant expression in mouse and human PCa; 56 between metastases and normal and 10 between primary tumor and normal tissues.
ARs with short Q tracts (12Q), which are transcriptionally more active, induce earlier disease in the transgene-induced TRAMPprostate cancer model than alleles with median (21Q) or long (48Q) tracts.
Here we demonstrate that in mouse prostate cancerTRAMP-C1 cells epididymal fat extracts from high-fat diet-fed obese mice stimulate androgen-independent cell growth more significantly than those from low-fat diet-fed lean mice or genetically obese leptin-deficient ob/ob mice in correlation with leptin concentrations.
First, a transgenic mouse model of prostate cancer (transgenic adenocarcinoma of mouse prostate; TRAMP) was used to determine the role of energy balance on SIRT1 expression and the effect of cancer stage on SIRT1 and hypermethylated in cancer-1 (HIC-1).