Project description:We performed microarray analysis of cells expressing LACZ or HOXC10 treated with MEK and BRD4 inhibition in combination for 24 hours, prior to the induction of cell death, to analyze transcriptional changes that might be mechanistic drivers of the therapeutic effect. 12 samples in triplicate, 3X LACZ + vehicle treatment, 3X HOXC10 + vehicle treatment, 3X LACZ + combo treatment, 3X HOXC10 + combo treatment
Project description:Speciation involves the reproductive isolation of natural populations due to the sterility or lethality of their hybrids. However, the molecular basis of hybrid lethality and the evolutionary driving forces that provoke it, remain largely elusive. The hybrid male rescue (Hmr) and the lethal hybrid rescue (Lhr) genes serve as a model to study speciation in Drosophilids as their interaction causes lethality in male hybrid offspring. Here we show that HMR and LHR form a centromeric complex necessary for proper chromosome segregation. We find that the Hmr expression level is substantially higher in D. melanogaster whereas Lhr expression levels are increased in D. simulans. The resulting elevated amount of HMR/LHR complex in hybrids results in an extensive mislocalisation of the complex, an interference with the regulation of transposable elements and an impairment of cell proliferation. Our findings provide evidence for a major role of centromere divergence in the generation of biodiversity. Raw data were analysed using the MaxQuant 1.2.2.5 software package. Identified proteins were considered as interation partners if their MaxQuant iBAQ values displayed a greater than 16fold enrichment compared to control anti-FLAG purifications from Schneider cell nuclear extracts not expressing any FLAG-tagged protein.
Project description:Hybrid weakness is an important post zygotic reproductive barrier between natural populations. Expression of hybrid weakness can lead to significant decrease in yield and even lethality and is thus an undesirable agronomic trait. We observed that F1 hybrids produced from crossing between any two of three Japonica varieties(CH7, CH8, CH9) exhibit hybrid weakness phenotype. Exploring the molecular mechanism underlying hybrid weakness in important crops like rice is worthy. We used microarrays to obtain a global picture of gene expression changes that occurred in the F1 hybrids with characteristic hybrid weakness phenotype.
Project description:We established a hypertrophic scar-like animal model using traction force in C57BL/6J mice to demonstrate the crucial mechanistic effect of TEM1 on pathological scarring. Samples from scar areas in sham and traction groups of Tem1WT/WT and Tem1lacZ/lacZ mice were subjected to RNA sequencing.
Project description:HOXC10 overexpression modifies the therapeutic response to combined MEK and BRD4 inhibitors We performed microarray analysis of cells expressing LACZ or HOXC10 treated with MEK and BRD4 inhibition in combination for 24 hours, prior to the induction of cell death, to analyze transcriptional changes that might be mechanistic drivers of the therapeutic effect.
Project description:Characterisation IER3-AS1 interacting proteins using chromatin oligo-affinity precipitation (ChOP) followed by mass spectrometry. The HeLa cell lysates was incubated with biotinylated antisense oligonucleotides (ASO), targeting an experimental target antisense long noncoding RNA IER3-AS1 or a control RNA LacZ. LacZ and IER3-AS1 interacting proteomes were pulldown using Streptavidin beads. The eluted protein samples from both LacZ control ASOs and IER3-AS1 ASOs subjected to mass-spectrometry analyses to identify IER3-AS1 interacting proteins.
2022-10-15 | PXD035704 | Pride
Project description:Gene duplicates cause hybrid lethality between sympatric species of Mimulus