Senescent cells accumulate in many ageing-associated diseases such as pulmonary fibrosis, and targeting these cells has recently emerged as a promising therapeutic approach. Here, we take advantage of the high ß-galactosidase activity of senescent cells to design a targeted drug delivery system based on the encapsulation of drugs with galacto-oligosaccharides (GalNP beads). In this experiment we show that gal-encapsulated rhodamine target senescent cells in the context of pulmonary fibrosis in mice. Overall design: 8- to 10-week-old C57BL/6 wild-type mice were intratracheally inoculated with bleomycin at 1.5 U/kg of body weight. Two weeks later mice were i.v. injected with 200 µl of a solution of GalNP beads loaded with rhodamine [GalNP(rho)] at 4 mg/ml, equivalent to 1 mg/kg of deliverable rhodamine. 6 hours later mice were sacrificed and lung cells were analysed by flow cytometry and sorted into Rho+ or Rho- cells, all CD45-CD31-.
A versatile drug delivery system targeting senescent cells.
Specimen part, Cell line, Subject
View SamplesWe used microarrays to determine the expression profile of the P. aeruginosa creBC mutant regarding its parental wild type strain PAO1.
The Pseudomonas aeruginosa CreBC two-component system plays a major role in the response to β-lactams, fitness, biofilm growth, and global regulation.
Treatment
View SamplesTo characterize how symbiotic bacteria affect the lolecular and cellular mechanisms of epithelial homeostasis, human colonic Caco-2 cells
Epithelial cell proliferation arrest induced by lactate and acetate from Lactobacillus casei and Bifidobacterium breve.
No sample metadata fields
View SamplesGene expression analysis in hLECs treated with gain of function or loss of function of MDK in human melanoma cells. Overall design: Biological triplicates of hLEC treated for 3 days with EGM-2 MV conditioned media of melanoma cells. Cell line SK-Mel-147 KD for MDK (shMDK) and its corresponding control (shCtrl (LoF) and WM164 cell line overexpressing MDK (MDK) or an empty vector (NEG) (GoF) were used to produce the conditioned media.
Whole-body imaging of lymphovascular niches identifies pre-metastatic roles of midkine.
Specimen part, Subject
View SamplesIn order to identify the developmental changes controlling the switch from disease susceptibility to resistance, we performed global gene expression analysis on non-infected and infected intestinal tissues taken from 4-day- and 7-day-old animals.
Maturation of paneth cells induces the refractory state of newborn mice to Shigella infection.
Age
View SamplesIn this experiments different treatments were applied to lung cancer cell lines
Ingenuity network-assisted transcription profiling: Identification of a new pharmacologic mechanism for MK886.
No sample metadata fields
View SamplesGene expression profile was analyzed after knockdown of PAEP in lung cancer cell lines 2106T and H1975 as well as in skin cancer cell line MeWo.
Glycodelin: A New Biomarker with Immunomodulatory Functions in Non-Small Cell Lung Cancer.
Specimen part, Cell line, Treatment
View SamplesThe stromal microenvironment plays a vital role in cancer initiation and progression. We performed a comparative expression profiling of pulmonary MSC derived from NSCLC and corresponding normal lung tissue of 5 newly diagnosed patients. The analysis indicated variable expression of genes involved in DNA repair, apoptosis, proliferation or angiogenesis between NSCLC-MSC and NLT-MSC.
Mesenchymal stem cells in non-small cell lung cancer--different from others? Insights from comparative molecular and functional analyses.
Specimen part, Subject
View SamplesSix1 is a developmental transcriptional regulator frequently overexpressed in human tumors. Recent results also show that SIX1 acts as a repressor of cell senescence, an antiproliferative response with key roles in tumor suppression, among other physiological and pathological settings. Here, we set to study the impact of SIX1 gain of function in transformation and tumorigenesis of fibroblasts, in connection with senescence. Using transcriptomic, histological, and functional analyses in murine cells and tumors of fibroblast origin, we show that SIX1 has a strong pro-tumorigenic action in this model, linked to the repression of a senescence-related gene signature and the activation of cellular plasticity, mediated at least in part by direct transcriptional regulation of the stemness factor Sox2. Moreover, functional analyses with human glioma cell lines also show that SIX1 controls SOX2 expression, senescence and self-renewal in this model. Collectively, our results support a general link of SIX1 with senescence and SOX2-mediated cell plasticity in tumors. Overall design: mRNA profiles were obtained from SIX1-overexpressing tumors and controls in triplicate by RNA-Seq using Illumina HiSeq.
SIX1 represses senescence and promotes SOX2-mediated cellular plasticity during tumorigenesis.
Specimen part, Subject
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Pathways regulating the expression of the immunomodulatory protein glycodelin in non‑small cell lung cancer.
Sex, Age, Specimen part, Cell line, Treatment
View Samples