Using ex vivo cell models, investigators analyzed SARS-Cov2 interactions with kidney tubular cells and assessed direct tubular injury. These models comprised primary human kidney epithelial cells and more quiescent three-dimensional kidney spheroids.
[Clinical Journal of the American Society of Nephrology]
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Omer, D., Pleniceanu, O., Gnatek, Y., Namestnikov, M., Cohen-Zontag, O., Goldberg, S., Friedman, Y. E., Friedman, N., Mandelboim, M., Vitner, E., Achdout, H., Avraham, R., Zahavy, E., Israely, T., Mayan, H., & Dekel, B. (2021). Human Kidney Spheroids and Monolayers Provide Insights into SARS-CoV-2 Renal Interactions. Journal of the American Society of Nephrology. https://doi.org/10.1681/ASN.2020111546 Cite
Researchers used asthma model bronchial smooth muscle cells to measure the biological behaviors of Histone deacetylase 4 (HDAC4)-mediated Kruppel-like factor 5 (KLF5)/Slug/CXC chemokine ligand-12 (CXCL12) axis on the development of asthma in regulation of airway inflammation and remodeling.
[Journal of Translational Medicine]
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Neutrophil extracellular traps treatment induced intestinal epithelial monolayer barrier disruption and endoplasmic reticulum (ER) stress activation in a dose-dependent manner in vitro, and ER stress inhibition markedly attenuated intestinal apoptosis and tight junction injury.
[Cell Death & Disease]
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Scientists reported the generation of a hepatobiliary tubular organoid using mouse hepatocyte progenitors and cholangiocytes.
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Tanimizu, N., Ichinohe, N., Sasaki, Y., Itoh, T., Sudo, R., Yamaguchi, T., Katsuda, T., Ninomiya, T., Tokino, T., Ochiya, T., Miyajima, A., & Mitaka, T. (2021). Generation of functional liver organoids on combining hepatocytes and cholangiocytes with hepatobiliary connections ex vivo. Nature Communications, 12(1), 3390. https://doi.org/10.1038/s41467-021-23575-1 Cite
Investigators studied effects of recombinant D-dopachrome tautomerase (DDT) on cell proliferation and survival by clonogenic assay and annexin V-PI staining respectively. DDT-induced signaling was investigated by Western blot.
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Song, S., Liu, B., Habibie, H., Bor, J. van den, Smit, M. J., Gosens, R., Wu, X., Brandsma, C.-A., Cool, R. H., Haisma, H. J., Poelarends, G. J., & Melgert, B. N. (2021). D-dopachrome tautomerase contributes to lung epithelial repair via atypical chemokine receptor 3-dependent Akt signaling. EBioMedicine, 68. https://doi.org/10.1016/j.ebiom.2021.103412 Cite
miR-1298-5p and suppressor of cytokine signaling 6 (SOCS6) were silenced or overexpressed in human bronchial epithelial cells. PKH-67 Dye was used to trace exosome endocytosis.
[Molecular and Cellular Biochemistry]
Investigators showed that the intestine-enriched miR-802 was a central regulator of intestinal epithelial cell proliferation, Paneth cell function, and enterocyte differentiation.
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Scientists linked intestinal dysbiosis, systemic inflammation, and inflammasome activity to intestinal epithelial cells major histocompatibility complex class II upregulation via an intestinal serum Interleukin-18-interferon gamma axis.
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Investigators summarize the existing research on polyamine metabolism and function, specifically the role of polyamines in gastric immune cell and epithelial cell function.
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Investigators discuss 3D cell culture systems as mammosphere organoids and their relevance for agronomic research.
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The authors identified growth hormone receptor is mainly expressed in mesenchymal cells, and its expression is substantially decreased in idiopathic pulmonary fibrosis lungs.
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