Scientists report that B cell-specific deletion of the X-linked gene, Cosmc, and the consequent decrease of protein O-glycosylation, induced developmental blocks of mouse B cells.
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Investigators describe self-replicating RNAs encapsulated in lipid nanoparticles (LNPs), which combined three key elements: an LNP composition that potently promoted immunogenic cancer cell death, RNA that stimulated danger sensors in transfected cells and RNA-encoded interleukin (IL)-12 for modulation of immune cells.
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Li, Y., Su, Z., Zhao, W., Zhang, X., Momin, N., Zhang, C., Wittrup, K. D., Dong, Y., Irvine, D. J., & Weiss, R. (2020). Multifunctional oncolytic nanoparticles deliver self-replicating IL-12 RNA to eliminate established tumors and prime systemic immunity. Nature Cancer, 1–12. https://doi.org/10.1038/s43018-020-0095-6 Cite
Mesenchymal stem cells, endothelial progenitor cells and c-Kit+ cardiac interstitial cells when cultured together spontaneously formed scaffold-free 3D microenvironments termed CardioClusters.
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Monsanto, M. M., Wang, B. J., Ehrenberg, Z. R., Echeagaray, O., White, K. S., Alvarez, R., Fisher, K., Sengphanith, S., Muliono, A., Gude, N. A., & Sussman, M. A. (2020). Enhancing myocardial repair with CardioClusters. Nature Communications, 11(1), 3955. https://doi.org/10.1038/s41467-020-17742-z Cite
Researchers present the dodecin from Mycobacterium tuberculosis (mtDod) as a new scaffold protein. MtDod is a homododecameric complex of spherical shape, high stability and robust assembly, which allows the attachment of cargo at its surface.
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Scientists present an experimental system based on 3D scaffold-based cortical neuron cultures in which they expressed the genetically encoded calcium indicator GCaMP6f to record neuronal activity at the millimeter-scale.
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Experimentally manipulating stromal matrix with an anti– lysyl oxidase like-2 antibody in syngeneic orthotopic pancreatic ductal adenocarcinoma mouse models significantly decreased matrix content, led to lower tissue stiffness, lower contrast retention on computed tomography, and accelerated tumor growth, resulting in diminished overall survival.
[Journal of Clinical Investigation]
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Using secretome analyses, the authors revealed the extracellular accumulation of amyloidogenic proteins, i.e. premelanosome protein, in metastatic melanoma, together with proteins that assist amyloid maturation into fibrils.
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The authors aims to understand the biological processes, key events, and consequences regarding the hypoxia-driven metabolic adaptation of tumor cells.
[International Journal of Molecular Sciences]
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Twitter has suspended the account of MeTooSTEM founder BethAnn McLaughlin after allegations emerged that the former Vanderbilt University neuroscientist fabricated the Twitter account of an apparently nonexistent female Native American anthropologist at Arizona State University who had claimed to be an anonymous victim of sexual harassment by a Harvard professor.
Researchers examined how regulation and function of gene products that provide the target epitopes for CD8+ T cell anti-tumor immunity influence therapeutic efficacy and resistance.
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Effern, M., Glodde, N., Braun, M., Liebing, J., Boll, H. N., Yong, M., Bawden, E., Hinze, D., Boorn-Konijnenberg, D. van den, Daoud, M., Aymans, P., Landsberg, J., Smyth, M. J., Flatz, L., Tüting, T., Bald, T., Gebhardt, T., & Hölzel, M. (2020). Adoptive T Cell Therapy Targeting Different Gene Products Reveals Diverse and Context-Dependent Immune Evasion in Melanoma. Immunity, 0(0). https://doi.org/10.1016/j.immuni.2020.07.007 Cite
Investigators provide a concise overview of the contextual contribution of fibroblastic mesenchymal cells in physiology and disease and bring into focus emerging evidence for both their heterogeneity at the single-cell level and their tissue-specific, spatiotemporal functional diversity.
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Scientists investigated the epigenetic regulation of promoters and gene bodies and their effect on the tumor microenvironment composition of cutaneous malignant peripheral nerve sheath tumors and spindle cell melanomas.
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