Human alveolar epithelial cells were exposed to cigarette smoke extract (CSE) for 1, 3 and 5 weeks at 1%, 5% and 10%, and gene expression was evaluated by complete transcriptome microarrays.
Cigarette Smoke Enhances the Expression of Profibrotic Molecules in Alveolar Epithelial Cells.
Cell line, Time
View SamplesTo evaluate the possible occurrence of MET, fibroblasts from normal lungs and from interstitial lung diseases were cultured under standard conditions.
No associated publication
Specimen part
View SamplesResistance to chemotherapy is one of the most relevant aspects of treatment failure in cancer. Cell lines are used as models to study resistance. We analyze the transcriptional profile of two multidrug resistant (MDR) cell lines (Lucena 1 and FEPS) derived from the same drug-sensitive cell K562. Microarray data identified 130 differentially expressed genes (DEG) between K562 vs Lucena, 1,932 between K562 vs FEPS, and 1,211 between Lucena 1 versus FEPS. The NOTCH pathway was affected in FEPS with overexpression of NOTCH2 and HEY1. The highly overexpressed gene in MDR cell was ABCB1, and both presented the ABCB1 promoter unmethylated.
No associated publication
Cell line
View SamplesBoth, sleep deprivation and ketamine treatments are efficient and fast-acting antidepressants acting within the first 12-24 hr. post-treatment. This experiment was designed to identify if common transcriptional responses are elicited by both treatments
No associated publication
Specimen part
View SamplesInorganic arsenic, a major environmental contaminant, has risen as an important health problem worldwide. More detailed identification of the molecular mechanisms associated with iAs exposure would help to establish better strategies for prevention and treatment. Although chronic iAs exposures have been previously studied there is little to no information regarding the early events of exposure to iAs. To better characterize the early mechanisms of iAs exposure we conducted gene expression studies using sublethal doses of iAs at two different time-points. The major transcripts differentially regulated at 2 hrs of iAs exposure included antioxidants, detoxificants and chaperones. Moreover, after 12 hrs of exposure many of the down-regulated genes were associated with DNA replication and S phase cell cycle progression. Interestingly, the most affected biological pathway by both 2 or 12 hrs of iAs exposure were the Nrf2-Keap1 pathway, represented by the highly up-regulated HMOX1 transcript, which is transcriptionally regulated by the transcription factor Nrf2. Additional Nrf2 targets included SQSTM1 and ABCB6, which were not previously associated with acute iAs exposure.
No associated publication
Cell line
View SamplesTIMP-4 overexpression increases tumor burden in mice, promotes progenitor cell phenotype and sensitizes cells to apoptosis, by relying on NFkB signaling
Tissue inhibitor of metalloproteinases-4 (TIMP-4) regulates stemness in cervical cancer cells.
Specimen part, Cell line
View SamplesThe approval of genetically modified (GM) crops is preceded by years of intensive research to demonstrate safety to humans and environment. We recently showed that in vitro culture stress is the major factor influencing proteomic differences of GM vs. non-GM plants. This made us question the number of generations needed to erase such memory. We also wondered about the relevance of alterations promoted by transgenesis as compared to environment-induced ones.
Environmental stress is the major cause of transcriptomic and proteomic changes in GM and non-GM plants.
Specimen part
View SamplesControversy regarding genetically modified (GM) plants and their potential impact on human health contrasts with the tacit acceptance
Microarray analyses reveal that plant mutagenesis may induce more transcriptomic changes than transgene insertion.
Specimen part
View SamplesRationale: Chronic Obstructive Pulmonary Disease (COPD) is associated with a complex pulmonary and systemic immune response.
No associated publication
Sex, Age, Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Identification of putative TAL effector targets of the citrus canker pathogens shows functional convergence underlying disease development and defense response.
Age, Specimen part, Time
View Samples