Mouse lung samples from mice challenged with OVA or PBS control. Wildtype (B6) mice were tested, as well as mast cell deficient mice with engraftment of normal mast cells and mast cells deficient in IgE or Ifn-gamma signaling.
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Sex, Specimen part
View SamplesAfter 8 days of OKSM induction via doxycycline, Nanog-Neo secondary MEFs (Wernig et al. Nature Biotechnology 2008) were FACS sorted by KLF4, Oct4, and EpCAM expression. Four major subsets of MEFs have been sorted and analysed for gene expression.
No associated publication
Specimen part
View SamplesLandmark events occur in a coordinated manner during preimplantation development of the mammalian embryo, yet the regulatory network that orchestrates these events remains largely unknown.
An Oct4-Sall4-Nanog network controls developmental progression in the pre-implantation mouse embryo.
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View SamplesThe retinoblastoma cell cycle regulator pRb and the two related proteins p107 and p130 are thought to suppress cancer development both by inhibiting the G1/S transition of the cell cycle in response to growth-arrest signals and by promoting cellular differentiation. Here, we investigated the phenotype of Rb family triple knock-out (TKO) embryonic stem cells as they differentiate in vivo and in culture. Confirming the central role of the Rb gene family in cell cycle progression, TKO mouse embryos did not survive past mid-gestation and differentiating TKO cells displayed increased proliferation and cell death. However, patterning and cell fate determination were largely unaffected in these TKO embryos. Furthermore, a number of TKO cells, including in the neural lineage, were able to exit the cell cycle in G1 and terminally differentiate. This ability of Rb family TKO cells to undergo cell cycle arrest was associated with the repression of target genes for the E2F6 transcription factor, uncovering a pRb-independent control of the G1/S transition of the cell cycle. These results show that the Rb gene family is required for proper embryonic development but is not absolutely essential to induce G1 arrest and differentiation in certain lineages.
G1 arrest and differentiation can occur independently of Rb family function.
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View SamplesA leukemia cell fraction highly enriched for LSCs was generated in a mouse model of AML induced by co-expression of MLL target genes Hoxa9 and Meis1. Limit dilution transplantation analyses performed on various prospectively isolated leukemia cell subpopulations revealed that cells capable of transplanting AML to syngeneic recipient mice (the operational definition of LSCs) were highly enriched in the leukemia cell fraction displaying an immunophenotype (Lin- Sca1- c-kit+ CD16/32+ CD34+) comparable to normal GMPs, referred to as L-GMPs. For the purpose of identifying genes that are differentially expressed in LSCs, microarray expression profiling was performed on L-GMPs (from leukemic mice) and GMPs (from normal mouse BM) purified by flow cytometry.
No associated publication
No sample metadata fields
View SamplesThe sense of hearing depends on the faithful transmission of sound information from the ear to the brain by spiral ganglion (SG) neurons. However, how SG neurons develop the connections and properties that underlie auditory processing is largely unknown.
Developmental profiling of spiral ganglion neurons reveals insights into auditory circuit assembly.
Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Novel subtype-specific genes identify distinct subpopulations of callosal projection neurons.
Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
No associated publication
No sample metadata fields
View SamplesNormal adult liver is uniquely capable of renewal
Restoration of liver mass after injury requires proliferative and not embryonic transcriptional patterns.
Age
View SamplesThe vertebrate retina uses diverse neuronal cell types arrayed into complex neural circuits to extract, process and relay information from the visual scene to the higher order processing centers of the brain. Amacrine cells, a diverse class of inhibitory interneurons, are thought to mediate the majority of the processing of the visual signal that occurs within the retina. Despite morphological characterization, the number of known molecular markers of amacrine cell types is still much smaller than the 26 morphological types that have been identified. Furthermore, it is not known how this diversity arises during development. Here, we have combined in vivo genetic labeling and single cell genome-wide expression profiling to: 1) Identify specific molecular types of amacrine cells; 2) Demonstrate the molecular diversity of the amacrine cell class.
Development and diversification of retinal amacrine interneurons at single cell resolution.
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View Samples