These sources examine the critical role of cellular organelles in controlling ageing and lifespan. Researchers highlight how lysosomes, mitochondria, and the endoplasmic reticulum function as metabolic signalling hubs that maintain cellular balance. The text details how these structures communicate through dynamic crosstalk and inter-tissue signalling to influence organismal fitness. Beyond intern...去小宇宙查看完整单集简介
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This research utilizes mouse gastruloids as a three-dimensional model to investigate cell competition during early mammalian development. By introducing p53-deficient supercompetitor cells into wild-type populations, the authors demonstrate that even a tiny fraction of these aggressive cells can trigger mitochondrial apoptosis in their neighbors. The study identifies a specific temporal window—the...去小宇宙查看完整单集简介
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The paper describes the development of Lipid-CLEM, a novel imaging workflow designed to visualize the nanoscale distribution of specific lipid molecules within cellular membranes. By combining minimally modified bifunctional lipid probes with correlative light and electron microscopy, researchers can now quantify lipid densities across suborganellar structures with high precision. This method over...去小宇宙查看完整单集简介
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This research identifies a sophisticated mitochondrial transfer network between Leydig cells (LCs) and testicular macrophages (tMacs) that is essential for testosterone synthesis. Leydig cells manage cellular stress by exporting defective mitochondria via extracellular vesicles to CD206hi macrophages, which eliminate the damaged organelles through a TREM2-dependent process. Simultaneously, LCs rep...去小宇宙查看完整单集简介
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SpaHDmap is an innovative multimodal framework designed to enhance the resolution and interpretability of spatial transcriptomics (ST) data. By integrating gene expression profiles with high-resolution histology images, the tool overcomes common challenges like data sparsity and noise to reveal subtle tissue structures. It utilizes a deep learning architecture combined with non-negative matrix fac...去小宇宙查看完整单集简介
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Researchers have successfully engineered human trunk-like structures (hTLS) using pluripotent stem cells to investigate the complex co-development of the neural tube and somites. By precisely adjusting chemical signaling during the growth process, the team created 3D models that replicate the morphological organization and gene expression of a human embryo at approximately four to five weeks of de...去小宇宙查看完整单集简介
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This research examines how lineage-determining transcription factors physically reshape chromatin to regulate essential oncogenes through multi-enhancer interactions. Using advanced optical chromatin tracing and protein degradation systems, the authors demonstrate that factors like EBF1 and TCF1 act as permeable barriers to cohesin, a motor protein that loops DNA. By restricting cohesin's movement...去小宇宙查看完整单集简介
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This research identifies Lamin B receptor (LBR) and lamina-associated polypeptide 2 (LAP2) as the primary molecular tethers responsible for anchoring heterochromatin to the nuclear periphery in mammalian cells. By systematically depleting various nuclear envelope proteins, the authors discovered that losing these specific anchors causes dense genetic material to detach from the edge and relocate i...去小宇宙查看完整单集简介
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Researchers have developed CoCo-ST, a novel computational framework designed to identify both prominent and subtle biological structures within spatial transcriptomics data. By utilizing a graph contrastive learning approach that compares target tissues against background samples, the tool successfully isolates unique local features often missed by traditional algorithms. The study demonstrates th...去小宇宙查看完整单集简介
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This research identifies microtubule architecture as a central regulator of cellular mechanotransduction, specifically influencing the YAP/TAZ signaling pathway. The study demonstrates that mechanical forces cause microtubules to reorganize from a cage-like structure into a radial array centered at the nucleus. This shift facilitates the degradation of AMOT, a protein that acts as a mechanical rhe...去小宇宙查看完整单集简介
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