Project description:In an effort to identify novel signaling molecules modulated by α-TEA, microarray analyses were performed. DNA array data obtained from human MDA-MB-435 breast cancer cells treated with 40 µM α-TEA for 12 h revealed over 400 genes that were consistently either up- or down-regulated. Thirty-four genes were selected based on their possible involvement in the known biological activities of α-TEA, and three: phorbol-12-myristate 13-acetate-induced protein (PMAPI) which codes for the protein NOXA, ABL2 which codes for the protein referred to as ARG (Abelson-related gene) and THBS1 which codes for thrombospondin 1, TSP-1 were chosen for further study. Keywords: Anti-cancer drug (aTEA at 40 uM 12 hour) treatment for MDA-MB-435 cells
Project description:This experiment is designed to screen miRNAs that are deregulated during breast cancer metastasis. Comparatively analyzing miRNAs in parental MDA-MB-435 cells and cells obtained from its lung metastases, 23 miRNAs expressed differentially, among which 12 were elevated and 11 were down-regulated. Total RNA were extracted from parental MDA-MB-435 cells and cells obtained from its lung metastases after 30 days inoculation. Two biological replications for each treatment.
Project description:Expression of the transcription factor CEBPD is induced at early stages of the endoplasmic reticulum (ER) stress response. In order to identify the genes modulated by CEBPD during the ER stress response, we transiently silenced CEBPD expression in MDA-MB-435 melanoma cells and isolated mRNA at 6 h of treatment with Thapsigargin or DMSO control. As control, cells were transfected with two different control siRNA oligonucleotides. Results provide insights into which genes are modulated by CEBPD and/or Thapsigargin in MDA-MB-435 cell
Project description:MDA-MB-435 breast cancer cells were treated with 2ME2 (2 µM) or vehicle alone. RNA was extracted and genomic profiling was performed using 22k Agilent microarrays. Keywords: Treatment-response
Project description:This experiment is designed to screen miRNAs that are deregulated during breast cancer metastasis. Comparatively analyzing miRNAs in parental MDA-MB-435 cells and cells obtained from its lung metastases, 23 miRNAs expressed differentially, among which 12 were elevated and 11 were down-regulated.
Project description:Cancer staging and treatment frequently assume a binary division of tumors into localized or metastatic cancers. We proposed a state of metastatic disease defined by the number of metastases termed oligometastases. Patients with oligometastatic disease may be cured with localized methods of cancer treatment. We analyzed miRNA expression from paraffin blocks of primary or metastatic tumor samples derived from oligometastatic (? 5 metastases) patients treated with high dose localized radiotherapy. We report patterns of miRNA expression in the metastatic and primary tumor samples that identify patients who failed to progress to widespread polymetastases. We created a model of oligometastases of human tumors in immune compromised mice. The miRNA patterns of gene expression derived from patients accurately identified oligometastatic patterns in the mouse model as compared to animals that developed widespread metastases. MiRNA signatures may identify patients most likely to benefit from aggressive curative treatment of limited metastatic disease. Injection of MDA-MB-435-GFP cancer cells into the mammary fat pad of female athymic mice to develop spontaneous macroscopic lung metastasis. Tail vein experimental lung colonization assay was performed to model the development of MDA-MB-435-GFP Oligo- or Poly-metastases in the lung in vivo. Cell lines: Total RNA were derived from MDA-MB-435-L1-GFP (Ol-like) or MDA-MB-435-L1Mic (Poly-like) cell lines.
Project description:MDA-MB-435 breast cancer cells were treated with 2ME2 (2 µM) or vehicle alone. RNA was extracted and genomic profiling was performed using 22k Agilent microarrays. Experiment Overall Design: MDA-MB-435 breast cancer cells were treated with 2ME2 (2 µM) or vehicle alone. RNA was extracted and genomic profiling was performed using 22k Agilent microarrays.
