We treated Arabidopsis seedlings with chitosan and carried out a transcript profiling analysis (GeneChip microarrays) in order to identify genes and transcription factors regulated by chitosan. The results showed that jasmonate and defense responsive genes, camalexin and lignin biosynthetic genes were among genes up-regulated by chitosan. Several transcription factors are also strongly induced by chitosan.
Transcript profiling of chitosan-treated Arabidopsis seedlings.
Age, Treatment
View SamplesUp to now the role of tumor-specific pTregs and anergic cells during tumor development is not fully understood. Here we used a genetically-induced tumor expressing a MHC-II restricted DBY model antigen to characterize the tumor-induced pTregs and anergic cells that arise early during tumor development.
Induction of anergic or regulatory tumor-specific CD4<sup>+</sup> T cells in the tumor-draining lymph node.
Time
View SamplesUp to know CD4 T cell antitumor responses have been mostly studied in transplanted tumor models. However, although they are valuable tools, they are not suitable to study the long term interactions between tumors and the immune system
Induction of anergic or regulatory tumor-specific CD4<sup>+</sup> T cells in the tumor-draining lymph node.
Time
View SamplesCD4+ T cells as mediators of antitumor responses are beginning to be appreciated. Our team demonstrated that chronically activated CD4+ T cells (chCD4+ T cells) were expanded in the blood of cancer patients and their expansion is correlated with tumor regression.
Induction of anergic or regulatory tumor-specific CD4<sup>+</sup> T cells in the tumor-draining lymph node.
Disease
View SamplesPulmonary sarcomatoid carcinomas (PSCs) are rare and aggressive histological types of non-small cell lung cancer (NSCLC) with a median overall survival of about 9-12 months. In detail, PSCs comprise five different histological subtypes: pleomorphic carcinoma (PLC), giant cell carcinoma (GCC), spindle cell carcinoma (SCC), carcinosarcoma (CS) and pulmonary blastoma (PB). Preoperative pathological diagnosis may fail to identify these tumors and therapeutic options are still limited. PSCs have been scarcely characterized from a molecular point of view because of their rarity, and to date no specific markers have been found for PSCs in comparison with other NSCLC types. In this study a highly sensitive amplicon based whole transcriptome quantification analysis was performed, using the Ion AmpliSeq Transcriptome Human Gene Expression Kit (Life Technologies) on a selected series of 14 PSCs (1 PB, 4 CS, 2 SCC, 2 GCC, 5 PLC) and 3 samples of normal lung parenchyma. PSCs expression data were then compared with transcriptome data of lung adenocarcinoma and squamous cell carcinoma available on The Cancer Genome Atlas database. Thirty-eight genes specifically deregulated in PSC samples were identified. Among these, IGJ and SLMAP were validated by immunohistochemistry on an independent cohort (30 PSCs, 31 lung adenocarcinoma and 31 squamous cell carcinoma cases). Furthermore, a pathway enrichment analysis, performed on differentially expressed genes, revealed that FOXO signalling and Fanconi Anemia pathways, playing a pivotal role in cancer development and progression, are enriched in PSC tumors. The description of peculiar molecular profiles besides increasing our knowledge on PSCs biology may suggest new diagnostic and therapeutic strategies. Overall design: Whole transcriptome targeted gene quantification analysis was perfomed on a selected series of 14 pulmonary sarcomatoid carcinomas (1 pulmonary blastoma, 4 carcinosarcomas, 2 spindle cell carcinomas, 2 giant cell carcinomas, 5 pleomorphic carcinomas) and 3 samples of normal lung parenchyma, using the Ion AmpliSeq Transcriptome Human Gene Expression Kit ( Life Technologies).
Whole transcriptome targeted gene quantification provides new insights on pulmonary sarcomatoid carcinomas.
Sex, Age, Specimen part, Subject
View SamplesWe used microarrays to compare gene expression profile of spleen CD8 T cells from IL-17RA KO and WT mice at different time-point after T. cruzi infection.
IL-17RA-Signaling Modulates CD8+ T Cell Survival and Exhaustion During <i>Trypanosoma cruzi</i> Infection.
Specimen part, Time
View SamplesCilia are ubiquitous cell surface projections that modulate various sensory- and motility based processes and are implicated in a growing number of multi-organ genetic disorders termed ciliopathies. As new components required for cilium biogenesis and function remain unidentified, we sought to further define and validate the transcriptional targets of the ciliogenic C. elegans RFX transcription factor DAF-19. To this end, transcriptional profiling of daf-19 mutants (which do not form cilia) and wild-type animals was performed using selectively staged embryos where ciliogenesis occurs in most ciliated sensory neurons
Transcriptional profiling of C. elegans DAF-19 uncovers a ciliary base-associated protein and a CDK/CCRK/LF2p-related kinase required for intraflagellar transport.
Specimen part
View SamplesIn order to investigate the mechanism for the progressive lens degeneration caused by targeted deletion of Dicer, we compared expression profiles of protein-coding genes in wild type and DicerCN lenses at E13.5, at a time before gross morphological changes had occurred. We identified distinct classes of differentially expressed genes in the conditional knockout lenses.
Targeted deletion of Dicer disrupts lens morphogenesis, corneal epithelium stratification, and whole eye development.
Specimen part
View SamplesGenome-wide gene expression analysis on tibialis anterior muscle from 2-month-old nebulin SH3 domain deleted (NebSH3) mice compared to wildtype.
The nebulin SH3 domain is dispensable for normal skeletal muscle structure but is required for effective active load bearing in mouse.
Sex, Age, Specimen part
View SamplesDifferential mRNA expression patterns were seen in GSC272-vector compared to GSC272-POSTN shRNA tumors.
Periostin (POSTN) Regulates Tumor Resistance to Antiangiogenic Therapy in Glioma Models.
Specimen part, Treatment
View Samples