mRNA expression in colon cancer tumores
Mice that express human interleukin-8 have increased mobilization of immature myeloid cells, which exacerbates inflammation and accelerates colon carcinogenesis.
Sex, Specimen part
View SamplesThe gene expression of murine splenic myeloid derived suppressor cells treated with Tff2 is characterized. The motivation of the study originates in the fact that Gr1+Cd11b+ myeloid-derived suppressor cells (MDSCs), which resemble immature myeloid cells (IMCs), expand during cancer in response to inflammatory cytokines and accumulate in the spleen. MDSCs promote neoplastic progression through their suppression of anti-tumourigenic cytotoxic T-cells. MDSCs are also rapidly expanded following acute insults, but in cancer as opposed to acute inflammation, MDSCs persist. It is now recognized that a vagally-mediated, anti-inflammatory reflex arc promoting acetylcholine secretion by Cd4+ (Cd44hiSelllo) T cells, is necessary for a return to homeostasis after an acute insult. Failure of this restorative neural circuit might contribute to unabated procarcinogenic inflammation, with the chronic expansion of MDSCs driving carcinogenesis. Trefoil factor 2 (Tff2) is a secreted anti-inflammatory peptide produced by both epithelial cells and a small subset of splenic T cell.
Neural innervation stimulates splenic TFF2 to arrest myeloid cell expansion and cancer.
Sex, Age, Specimen part
View SamplesWe performed gene expression profiling of hydrogen-bond surrogate that targets hypoxia-inducible transcription factior complex and results in inhibition of hypoxia-inducible genes with relatively minimal perturbation of non-targeted signaling pathways.
Protein domain mimetics as in vivo modulators of hypoxia-inducible factor signaling.
Cell line, Treatment
View SamplesWe performed gene expression profiling of alveolar macrophages from mice that were intratracheally instilled with saline or bleomycin. We identified a number of differentially expressed genes in the two groups of cells. Overall design: Expression profiling of alveolar macrophages from mice that were intratracheally instilled with saline or bleomycin.
Metabolic characterization and RNA profiling reveal glycolytic dependence of profibrotic phenotype of alveolar macrophages in lung fibrosis.
Specimen part, Disease, Disease stage, Cell line, Subject
View SamplesWe used microarrays to detail transcriptional changes in cultured human smooth muscle cells in response to acute and chronic 2-methoxyestradiol treatment
2-Methoxyestradiol blocks the RhoA/ROCK1 pathway in human aortic smooth muscle cells.
No sample metadata fields
View SamplesTo facilitate a better understanding of the molecular heterogeneity of breast cancer and to uncover gene-survival associations that segregate with distinct molecular subtypes, we recently compiled a meta-analytical database of over 2,000 human breast tumor expression profiles variously annotated for clinical and pathological variables and derived from various institutions worldwide. This database was utilized for the breast tumor study cited below: Nagalla, et. al., Genome Biology, 2013. While the majority of the tumor expression profiles included in this database derived from publicly accessible microarray repositories, a number of the samples had not been previously published. Here, we describe the origin of these samples and provide their associated clinical and pathological annotations with the hope that other investigators will be able to utilize these data in their own research.
Interactions between immunity, proliferation and molecular subtype in breast cancer prognosis.
Age, Disease stage
View SamplesDetailed analysis of genome-wide transcriptome profiling in rice root is reported here, following Cr-plant interaction. Such studies are important for the identification of genes responsible for tolerance, accumulation and defense response in plants with respect to Cr stress. Rice root metabolome analysis was also carried out to relate differential transcriptome data to biological processes affected by Cr (VI) stress in rice.
Transcriptomic and metabolomic shifts in rice roots in response to Cr (VI) stress.
Age, Specimen part, Treatment
View SamplesVascular pericytes, an important cellular component, in the tumor microenvironment, are often associated with tumor vasculatures and their functions in cancer invasion and metastasis are poorly understood. Here we show that PDGF-BB induces pericyte fibroblast transition (designated as PFT), which significantly contributes to tumor invasion and metastasis. Gain- and loss-of-function experiments demonstrate that the PDGF-BB-PDGFR signaling promotes PFT in vitro and in in vivo tumors. Genome-wide expression analysis indicates that PDGF-BB-activated pericytes acquire mesenchymal progenitor features. Pharmacological inhibition and genetic deletion of PDGFR ablate the PDGF-BB-induced PFT. Genetic tracing of pericytes with two independent mouse strains, i.e., TN-AP-CreERT2:R26R-tdTomato and NG2:R26R-tdTomato, shows that PFT cells gains stromal fibroblast and myofibroblast markers in tumors. Importantly, co-implantation of PFT cells with less-invasive tumor cells in mice markedly promotes tumor dissemination and invasion, leading to an increased number of circulating tumor cells (CTCs) and metastasis. Our findings reveal a novel mechanism of vascular pericytes in PDGF-BB-promoted cancer invasion and metastasis by inducing PFT and thus targeting PFT may offer a new treatment option of cancer metastasis.
Pericyte-fibroblast transition promotes tumor growth and metastasis.
Specimen part
View SamplesPreconditioning with a small dose of endotoxin confers unparalleled protection against otherwise lethal models of sepsis. The mechanisms of preconditioning have been investigated extensively in isolated immune cells such as macrophages. However, the role of tissue in mediating the protective response to preconditioning remains unknown. Using the kidney as a model organ, we identify the essential role of the renal epithelial cell in mediating the full expression of protective preconditioning. The protective phenotype is characterized by the clustering of macrophages around S1 segments of proximal tubules, which forms a functional unit mediating protection. To investigate the molecular pathways, we laser microdissected S1 segments from the following: 1) Non-preconditioned mice subjected to single-dose 5 mg/kg lipopolysaccharide (0111:B4, LPS) intraperitoneally for 24 hours. 2) Preconditioned mice subjected to 0.25 mg/kg LPS followed 24 hour later by 5 mg/kg LPS (LPS/LPS). 3) Control mice (saline vehicle).
Endotoxin Preconditioning Reprograms S1 Tubules and Macrophages to Protect the Kidney.
Sex, Specimen part, Treatment, Time
View SamplesThe goal of this study is to characterize the human immune responses to the live attenuated Herpes zoster vaccine Zostavax, to understand the molecular and cellular mechanisms that lead to antibody production and T cell induction, and to understand the difference between young and elderly healthy adults. The overall data collection included antigen specific assays, flow cytometric profiling of innate and adaptive cell populations, measurement of serum cytokines, and transcriptomic and metabolomics signatures. Zostavax induced robust antigen-specific antibody responses, and significant T cell responses. A number of gene pathways were upregulated after vaccination. Using our previously developed blood transcription modules, we also identified transcriptomic correlates to antibody response. Furthermore, this study revealed strong association between PBMC transcriptomics and plasma metabolomics. Integrative analysis of orthogonal datasets from metabolomics, transcriptomic and immune profiling facilitated a temporal reconstruction of Zostavax induced biological networks culminating in antibody responses , and the delineation of novel molecular correlates of vaccine immunity.
Metabolic Phenotypes of Response to Vaccination in Humans.
Sex, Age, Specimen part, Race, Subject
View Samples