Our study demonstrates that neutrophils infiltrate early-stage PTEN-deficient uterine tumors and oppose tumor growth and malignant progression by inducing detachment and ultimately promoting cell death of tumor cells. This RNA-seq study examined the expression profiles of these uterine epithelial tumor cells in the presence versus absence of neutrophil infiltration. Overall design: Tumor cells from 4-week-old tumor-bearing neutrophil-sufficient versus -deficient mice were isolated by fluorescence activated cell sorting, RNA was isolated, and expression profiles were analyzed by deep sequencing.
Neutrophils Oppose Uterine Epithelial Carcinogenesis via Debridement of Hypoxic Tumor Cells.
Age, Specimen part, Subject
View SamplesGenome-wide transcriptome analysis was performed to understand the expression pattern of transcriptomes in tolerant and susceptible subtropical maize genotypes under waterlogging stress condition.
Genome-wide expression of transcriptomes and their co-expression pattern in subtropical maize (Zea mays L.) under waterlogging stress.
Specimen part, Treatment, Time
View SamplesIdentifying the interaction partners of non-coding RNAs is essential for elucidating their functions. We have developed an approach, termed microRNA-cross-linking and immunoprecipitation (miR-CLIP), using pre-miRNAs modified with psoralen and biotin to capture their targets in cells. Photo-cross-linking and Argonaute 2-immunopurification followed by streptavidin affinity-purification of probe-linked RNAs provided selectivity in the capture of targets, identified by deep-sequencing. MiR-CLIP with pre-miR-106a, a miR-17-5p family member, identified hundreds of putative targets in HeLa cells, many carrying conserved sequences complementary to the miRNA seed but also many that were not predicted computationally. MiR-106a overexpression experiments confirmed that miR-CLIP captured functional targets, including H19, a long-non-coding RNA that is expressed during skeletal muscle cell differentiation. We showed that miR-17-5p family members bind H19 in HeLa cells and myoblasts. During myoblast differentiation levels of H19, miR-17-5p family members and mRNA targets changed in a manner suggesting that H19 acts as a sponge for these miRNAs. Overall design: Two replicates of three cDNA libraries were submitted to deep sequencing: a sample from RNA-7-transfected cells; a sample from pre-miR-106a transfected cells; and a control sample.
miR-CLIP capture of a miRNA targetome uncovers a lincRNA H19-miR-106a interaction.
No sample metadata fields
View SamplesIdentifying the interaction partners of non-coding RNAs is essential for elucidating their functions. We have developed an approach, termed microRNA-cross-linking and immunoprecipitation (miR-CLIP), using pre-miRNAs modified with psoralen and biotin to capture their targets in cells. Photo-cross-linking and Argonaute 2-immunopurification followed by streptavidin affinity-purification of probe-linked RNAs provided selectivity in the capture of targets, identified by deep-sequencing. MiR-CLIP with pre-miR-106a, a miR-17-5p family member, identified hundreds of putative targets in HeLa cells, many carrying conserved sequences complementary to the miRNA seed but also many that were not predicted computationally. MiR-106a overexpression experiments confirmed that miR-CLIP captured functional targets, including H19, a long-non-coding RNA that is expressed during skeletal muscle cell differentiation. We showed that miR-17-5p family members bind H19 in HeLa cells and myoblasts. During myoblast differentiation levels of H19, miR-17-5p family members and mRNA targets changed in a manner suggesting that H19 acts as a sponge for these miRNAs. Overall design: Two replicates of two cDNA libraries were submitted to deep sequencing: a sample from siH19-transfected cells and a control sample.
miR-CLIP capture of a miRNA targetome uncovers a lincRNA H19-miR-106a interaction.
No sample metadata fields
View SamplesThis study presents transcription profiles for mouse axial progenitors, presomitic mesoderm and tailbud mesoderm. During vertebrate embryonic development, the formation of axial structures is driven by a population of stem-like cells (axial progenitors) that reside in a region of the tailbud called the chordoneural hinge (CNH) where. We have compared the CNH transcriptome with those of surrounding tissues and shown that the CNH and tailbud mesoderm are transcriptionally similar, and distinct from the presomitic mesoderm. Amongst CNH-enriched genes are several that are required for axial elongation, including Wnt3a, Cdx2, Brachyury/T and Fgf8, and androgen/estrogen receptor nuclear signalling components such as Greb1.
<i>Greb1</i> is required for axial elongation and segmentation in vertebrate embryos.
Specimen part
View SamplesX-linked inhibitor of apoptosis (XIAP) is the most potent endogenous caspase inhibitor preventing cell death via caspase-9, -7 and -3 (initiator and executioner caspase pathways). Using short hairpin RNA (shRNA) against XIAP, stably expressed in a parent HCT116 human colon cancer cell line, a series of clones have been developed. XIAP mRNA levels were established by RT-PCR, the four X (XIAP knockdown) clonal cell lines show 82-93% reduction in XIAP mRNA when compared to the four L (luciferase control) cell lines. Immunoblot analysis showed a 67-89% reduction in XIAP protein in X cell lines compared to L. RNA was analysed by microarray and XIAP knockdown was confirmed in 7 probe sets, there was no significant compensation of other IAP family members. XIAP knockdown induced a 2-fold increase in the basal level of apoptosis without modification of caspase 3/7 activity. Finally, XIAP knockdown sensitises cells to radiotherapy by 20%, to recombinant TRAIL by a 3-fold factor, and to paclitaxel and docetaxel by >2 fold factor. Future work should focus on targeted agents such as rhTRAIL in combination with strategies to down regulate XIAP. XIAP antisense is now in clinical development in oncology.
Stable XIAP knockdown clones of HCT116 colon cancer cells are more sensitive to TRAIL, taxanes and irradiation in vitro.
No sample metadata fields
View SamplesRhoBTB2 is a novel Rho GTPase that undergoes loss, underexpression and mutation in breast and lung cancer. We have shown that we can mimic loss of RhoBTB2 through siRNA treatment of primary cells. We propose to perform comparative microarray analysis of primary lung cells to establish the identification of the gene targets of RhoBTb2 regulation.
The atypical Rho GTPase RhoBTB2 is required for expression of the chemokine CXCL14 in normal and cancerous epithelial cells.
No sample metadata fields
View SamplesWe sequenced mRNA from individual stormal cells (Macrophages, Monocytes, and Neutrophils) and tumor epithelial cells from KrasG12dD; p53-/- murine lung cancer model and WT control mouse to compare gene expressio profiles of lung cancer stroma and tumor cells to their counterparts of WT lugns. The tumor was generated by injecting HKP1 lung cancer cell line, which was driven by KrasG12D activation and loss of p53, via tail vein. The cells were sorted by their specific surface markers at day 20-25 after orthortopic lung cancer formation. Overall design: Examination of mRNA levels in individual stormal cells and tumor cells from tumor lungs compared to their counterparts from WT lungs
Transcriptome analysis of individual stromal cell populations identifies stroma-tumor crosstalk in mouse lung cancer model.
No sample metadata fields
View SamplesWe used microarrays to detail the global program of gene expression in cytokine stimulated effector CD8 T cells.
Costimulation Endows Immunotherapeutic CD8 T Cells with IL-36 Responsiveness during Aerobic Glycolysis.
Specimen part
View SamplesThe progression of cancer to metastatic disease is a major cause of death. We identified miR-708 being transcriptionally repressed by polycomb repressor complex (PRC2)-induced H3-K27 trimethylation in metastatic breast cancer. miR-708 targets the endoplasmic reticulum protein neuronatin (Nnat) to decrease intracellular calcium (Ca2+) level, resulting in reduction of activation of ERK and FAK, decreased cell migration, and impaired metastases. Functional complementation experiments with Nnat-3’UTR mutant, which is refractory to suppression by miR-708, rescued cell migration and metastasis defects. In breast cancer patients, miR-708 expression was decreased in lymph node and distal metastases, suggesting a metastasis-suppressive role. Our findings uncover a mechanistic role for miR-708 in metastasis and provide a rationale for developing miR-708 as a therapeutic agent against metastatic breast cancer. Overall design: Sequencing miRNAs from Human breast cancer cells: MCF10A, MCF7, MDA-MB-231, MDA-MB-LM2
Suppression of miRNA-708 by polycomb group promotes metastases by calcium-induced cell migration.
Specimen part, Cell line, Subject
View Samples