Project description:Transcriptome analysis of 130 breast cancer samples (41 TNBC ; 30 Her2 ; 30 Luminal B and 29 Luminal A), 11 normal breast tissue samples and 14 TNBC cell lines.
Project description:Transcriptome analysis of 130 breast cancer samples (41 TNBC ; 30 Her2 ; 30 Luminal B and 29 Luminal A), 11 normal breast tissue samples and 14 TNBC cell lines.
Project description:two luminal cell lines were added, MCF7 and BT-474 two TNBC cell line were added, MB231 and BT-549 microRNA expression profiles were conpared between the luminal group and the TNBC group
Project description:Transcriptome analysis of 130 breast cancer samples (41 TNBCÂ ; 30 Her2Â ; 30 Luminal B and 29 Luminal A), 11 normal breast tissue samples and 14 TNBC cell lines. This dataset contains 178 arrays. 153 arrays were used to analyze 130 unique breast cancer samples from as many patients and 23 technical duplicates. In addition 11 âNormalâ samples from healthy breast tissue obtained from mammoplasty are included, as well as a collection of 14 breast cancer cell lines. Data production involved different array batches and hybridation series which were accounted for in the pre-processing of the data.
Project description:Transcriptome analysis of 130 breast cancer samples (41 TNBCM-BM- ; 30 Her2M-BM- ; 30 Luminal B and 29 Luminal A), 11 normal breast tissue samples and 14 TNBC cell lines. This dataset contains 178 arrays. 153 arrays were used to analyze 130 unique breast cancer samples from as many patients and 23 technical duplicates. In addition 11 M-bM-^@M-^\NormalM-bM-^@M-^] samples from healthy breast tissue obtained from mammoplasty are included, as well as a collection of 14 breast cancer cell lines. Data production involved different array batches and hybridation series which were accounted for in the pre-processing of the data.
Project description:To determine the miRNAs’ roles in the tumorigenesis behavior of TNBC, we profiled the global miRNA expression in 2 highly aggressive TNBC cell lines (MDA-MB-231 and CAL-51) in comparison with that in 2 non-aggressive luminal-type breast cancer cell lines (ZR-75-1 and MCF-7).
Project description:Long non-coding RNAs have been implicated in many of the hallmarks of cancer. We previously annotated lncRNA152 (lnc152; a.k.a. DRAIC) and demonstrated its roles in proliferation, cell cycle progression, and regulation of the estrogen signaling pathway in breast cancer cells. Herein, we found that lnc152 is highly upregulated in luminal breast cancers, but is downregulated in triple-negative breast cancers (TNBC). Using a set of complementary experimental approaches, we found that knockdown of lnc152 promotes cell migration and invasion in luminal breast cancer cell lines. In contrast, ectopic expression of lnc152 inhibits growth, migration, invasion, and angiogenesis in TNBC cell lines. In xenograft studies in mice, lnc152 inhibited the growth and metastasis of TNBC cells. Transcriptome analysis of the xenografts indicated that lnc152 downregulates genes regulating cancer-related phenotypes, including angiogenesis. Using RNA-pull down assays coupled with LC-MS/MS analysis, we identified RBM47, a known tumor suppressor protein in breast cancer, as a lnc152-interacting protein. We found that lnc152 suppresses the aggressive phenotypes of TNBC cells by regulating the expression of RBM47. Collectively, our results demonstrate that lnc152 is an angiogenesis-inhibiting tumor suppressor that attenuates the aggressive cancer-related phenotypes found in TNBC.
