Project description:The objective of this study was to obtain expression profiles of proliferative T-HEp3-GFP and dormant D-HEp3-GFP cells after one week in vivo. The second objective was find tumor cells quiescence associated genes in dormant D-HEp3 cells that are only quiescent when injected in vivo. In this case we compared cells one week growing vs. dormant for the indicated cells in chick embryo CAMs. After one week 5 embryos per cell line carrying the indicated cells were isolated, tumors collagenased as described below and sorted for GFP-high cells usig a MoFlo machine. The sorted cells > 5x10^4 were used to extract RNA and the pure RNA was used to perform expression profiling using the Affymetrix HG-u133plus2 arrays. Because of the low amount of D-HEp3 (dormant) cells recovered all tumor cells from the dormant nodules were pooled. The same was done for proliferative-sorted T-HEp3-GFP cells to allow comparisons. Arrays were performed in triplicate. 5 T-HEp3-GFP tumors and 5 D-HEp3-GFP nodules were processed for preparation of single cells suspensions, RNA extracted and then pools of T-HEp3-GFP and D-HEp3-GFP sorted cells were analyzed in triplicate arrays
Project description:The objective of this study was to obtain expression profiles of proliferative T-HEp3-GFP and dormant D-HEp3-GFP cells after one week in vivo. The second objective was find tumor cells quiescence associated genes in dormant D-HEp3 cells that are only quiescent when injected in vivo. In this case we compared cells one week growing vs. dormant for the indicated cells in chick embryo CAMs. After one week 5 embryos per cell line carrying the indicated cells were isolated, tumors collagenased as described below and sorted for GFP-high cells usig a MoFlo machine. The sorted cells > 5x10^4 were used to extract RNA and the pure RNA was used to perform expression profiling using the Affymetrix HG-u133plus2 arrays. Because of the low amount of D-HEp3 (dormant) cells recovered all tumor cells from the dormant nodules were pooled. The same was done for proliferative-sorted T-HEp3-GFP cells to allow comparisons. Arrays were performed in triplicate.
Project description:We report the RNA expression profile in the tumorigenic (T-HEp3) and dormant (D-HEp3) HNSCC cell lines. T-HEp3 is a human epidermoid carcinoma, which grows on chorioallantoic membreane and metastasizes with high efficency into the organs of chick embryo. Upon serial paasage for more than 50 times in vitro , T-HEp3 loses tumorigenic and metastatic potential and termed as D-HEp3. This is an ideal cell line model system to study cancer dormancy.
Project description:We report the RNA expression profile in the AZA+atRA reprogrammed tumorigenic (T-HEp3) HNSCC cell line. T-HEp3 is a human epidermoid carcinoma, which grows on chorioallantoic membrane and metastasizes with high efficiency into the organs of chick embryo. Upon serial passage for more than 40 times in vitro, T-HEp3 loses tumorigenic and metastatic potential and termed as dormant D-HEp3. This is an ideal cell line model system to study cancer dormancy.
Project description:We report the RNA expression profile in the restoration of macroH2A2 in tumorigenic (T-HEp3) HNSCC cell line. T-HEp3 is a human epidermoid carcinoma, which grows on chorioallantoic membreane and metastasizes with high efficency into the organs of chick embryo. Upon serial paasage for more than 50 times in vitro , T-HEp3 loses tumorigenic and metastatic potential and termed as dormant D-HEp3. This is an ideal cell line model system to study cancer dormancy.
Project description:Gene expression profiling of immortalized human mesenchymal stem cells with hTERT/E6/E7 transfected MSCs. hTERT may change gene expression in MSCs. Goal was to determine the gene expressions of immortalized MSCs.
Project description:Transcriptional profiling of human mesenchymal stem cells comparing normoxic MSCs cells with hypoxic MSCs cells. Hypoxia may inhibit senescence of MSCs during expansion. Goal was to determine the effects of hypoxia on global MSCs gene expression.
Project description:Gene expression profiling of immortalized human mesenchymal stem cells with hTERT/E6/E7 transfected MSCs. hTERT may change gene expression in MSCs. Goal was to determine the gene expressions of immortalized MSCs. One-condition experment, gene expression of 3A6
Project description:Gene methylation profiling of immortalized human mesenchymal stem cells comparing HPV E6/E7-transfected MSCs cells with human telomerase reverse transcriptase (hTERT)- and HPV E6/E7-transfected MSCs. hTERT may increase gene methylation in MSCs. Goal was to determine the effects of different transfected genes on global gene methylation in MSCs.
Project description:Transcriptional profiling of human mesenchymal stem cells comparing normoxic MSCs cells with hypoxic MSCs cells. Hypoxia may inhibit senescence of MSCs during expansion. Goal was to determine the effects of hypoxia on global MSCs gene expression. Two-condition experiment, Normoxic MSCs vs. Hypoxic MSCs.