Renal AAV2-Mediated Overexpression of Long Non-Coding RNA H19 Attenuates Ischemic Acute Kidney Injury Through Sponging of microRNA-30a-5p

Lentivirus-mediated overexpression, as well as antisense oligonucleotide-based silencing, modulated H19 in vitro. In vivo analyses used constitutive H19 knockout mice.
[Journal of the American Society of Nephrology]
Haddad, G., Kölling, M., Wegmann, U. A., Dettling, A., Seeger, H., Schmitt, R., Soerensen-Zender, I., Haller, H., Kistler, A. D., Dueck, A., Engelhardt, S., Thum, T., Mueller, T. F., Wüthrich, R. P., & Lorenzen, J. M. (2021). Renal AAV2-Mediated Overexpression of Long Non-Coding RNA H19 Attenuates Ischemic Acute Kidney Injury Through Sponging of microRNA-30a-5p. Journal of the American Society of Nephrology. https://doi.org/10.1681/ASN.2020060775 Cite
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Pretreatment of Aged Mice with Retinoic Acid Supports Alveolar Regeneration via Upregulation of Reciprocal PDGFA Signaling

In vitro organoids generated from epithelial cells of mouse or patient with idiopathic pulmonary fibrosis co-cultured with young, aged or retinoic acid-pretreated murine fibroblasts were used to test potential targets.
[Thorax]
Gokey, J. J., Snowball, J., Green, J., Waltamath, M., Spinney, J. J., Black, K. E., Hariri, L. P., Xu, Y., & Perl, A. K. (2021). Pretreatment of aged mice with retinoic acid supports alveolar regeneration via upregulation of reciprocal PDGFA signalling. Thorax. https://doi.org/10.1136/thoraxjnl-2020-214986 Cite
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Omega-3 Polyunsaturated Fatty Acids and the Intestinal Epithelium—A Review

Scientists assessed the current literature detailing the effects of ω-3 polyunsaturated fatty acids (PUFAs) on epithelial cells. Marine-derived ω-3 PUFAs, eicosapentanoic acid and docosahexanoic acid, as well as plant-derived alpha-linolenic acid, are incorporated into intestinal epithelial cell membranes, prevent changes to epithelial permeability, inhibit the production of pro-inflammatory cytokines and eicosanoids and induce the production of anti-inflammatory eicosanoids and docosanoids.
[Foods]
Durkin, L. A., Childs, C. E., & Calder, P. C. (2021). Omega-3 Polyunsaturated Fatty Acids and the Intestinal Epithelium—A Review. Foods, 10(1), 199. https://doi.org/10.3390/foods10010199 Cite
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Discriminating Mild From Critical COVID-19 by Innate and Adaptive Immune Single-Cell Profiling of Bronchoalveolar Lavages

In mild COVID-19, CD8+ resident-memory and CD4+ T-helper-17 cells underwent active expansion towards the end of the trajectory, and were characterized by good effector functions, while in critical COVID-19 they remain more naïve.
[Cell Research]
Wauters, E., Van Mol, P., Garg, A. D., Jansen, S., Van Herck, Y., Vanderbeke, L., Bassez, A., Boeckx, B., Malengier-Devlies, B., Timmerman, A., Van Brussel, T., Van Buyten, T., Schepers, R., Heylen, E., Dauwe, D., Dooms, C., Gunst, J., Hermans, G., Meersseman, P., … Lambrechts, D. (2021). Discriminating mild from critical COVID-19 by innate and adaptive immune single-cell profiling of bronchoalveolar lavages. Cell Research, 1–19. https://doi.org/10.1038/s41422-020-00455-9 Cite
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Epithelium-Derived Indian Hedgehog Restricts Stromal Expression of ErbB Family Members That Drive Colonic Tumor Cell Proliferation

Scientists found that recombinant EREG, BTC, and NRG1 but not Lgr5 ligand R-Spondin promoted growth and proliferation of Apc double mutant colonic organoids.
[Oncogene]
Westendorp, F., Karpus, O. N., Koelink, P. J., Vermeulen, J. L. M., Meisner, S., Koster, J., Büller, N. V. J. A., Wildenberg, M. E., Muncan, V., & van den Brink, G. R. (2021). Epithelium-derived Indian Hedgehog restricts stromal expression of ErbB family members that drive colonic tumor cell proliferation. Oncogene, 1–16. https://doi.org/10.1038/s41388-020-01633-0 Cite
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Fibroblast Growth Factor Receptor Facilitates Recurrence of Minimal Residual Disease Following Trastuzumab Emtansine Therapy

Flow cytometric analyses indicated that induction of epithelial-mesenchymal transition decreased trastuzumab binding, prior to overt loss of HER2 expression in trastuzumab-emtansine-resistant (TDM1R) cells. Kinome analyses of TDM1R cells indicated increased phosphorylation of ErbB1, ErbB4, and FGFR1.
[npj Breast Cancer]
Akhand, S. S., Chen, H., Purdy, S. C., Liu, Z., Anderson, J. C., Willey, C. D., & Wendt, M. K. (2021). Fibroblast growth factor receptor facilitates recurrence of minimal residual disease following trastuzumab emtansine therapy. Npj Breast Cancer, 7(1), 1–11. https://doi.org/10.1038/s41523-020-00213-5 Cite
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Depletion of Trp53 and Cdkn2a Does Not Promote Self-Renewal in the Mammary Gland but Amplifies Proliferation Induced by TNF-α

Researchers investigated the roles of p53, p16INK4a, and p19ARF in the regulation of self-renewal and proliferation of mammary epithelial cells.
[Stem Cell Reports]
Pai Bellare, G., Saha, B., & Patro, B. S. (2021). Targeting autophagy reverses de novo resistance in homologous recombination repair proficient breast cancers to PARP inhibition. British Journal of Cancer, 1–15. https://doi.org/10.1038/s41416-020-01238-0 Cite
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Vinblastine Treatment Decreases the Undifferentiated Cell Contamination of Human iPS Cell-Derived Intestinal Epithelial-Like Cells

Investigators examined whether vinblastine could remove residual undifferentiated human induced pluripotent stem cells in human induced pluripotent stem cells-derived intestinal epithelial cells (hiPSC-IECs), and attempted to generate hiPSC-IECs applicable to transplantation medicine.
[Molecular Therapy-Methods & Clinical Development]
Ichikawa, M., Negoro, R., Kawai, K., Yamashita, T., Takayama, K., & Mizuguchi, H. (2021). Vinblastine treatment decreases the undifferentiated cell contamination of human iPS cell-derived intestinal epithelial-like cells. Molecular Therapy - Methods & Clinical Development, 0(0). https://doi.org/10.1016/j.omtm.2021.01.005 Cite
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Direct Reprogramming of Epithelial Cell Rests of Malassez into Mesenchymal-Like Cells by Epigenetic Agents

Researchers examined the roles of 5-Azacytidine and valproic acid in the dedifferentiation of epithelial cell rests of Malassez into stem-like cells. Additionally, the ability of stem-like cells to differentiate into mesenchymal cells was evaluated.
[Scientific Reports]
Yoshida, K., Uehara, O., Kurashige, Y., Paudel, D., Onishi, A., Neopane, P., Hiraki, D., Morikawa, T., Harada, F., Takai, R., Sato, J., Saitoh, M., & Abiko, Y. (2021). Direct reprogramming of epithelial cell rests of malassez into mesenchymal-like cells by epigenetic agents. Scientific Reports, 11(1), 1852. https://doi.org/10.1038/s41598-020-79426-4 Cite
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Role of Runx2 in Prostate Development and Stem Cell Function

Selective growth of murine prostate epithelium under non‐adherent conditions was used to enrich for stem cells. Expression of runt domain transcription factors, stem cell and prostate marker messenger RNAs was determined by quantitative reverse transcription polymerase chain reaction.
[Prostate]
Li, Y., Ge, C., & Franceschi, R. T. (n.d.). Role of Runx2 in prostate development and stem cell function. The Prostate, n/a(n/a). https://doi.org/https://doi.org/10.1002/pros.24099 Cite
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Greater Epithelial Ridge Cells Are the Principal Organoid-Forming Progenitors of the Mouse Cochlea

Scientists purified different cochlear cell types from neonatal mice, validated the composition of the different groups with single-cell RNA sequencing, and assessed the various groups’ potential to grow into inner ear organoids.
[Cell Reports]
Kubota, M., Scheibinger, M., Jan, T. A., & Heller, S. (2021). Greater epithelial ridge cells are the principal organoid-forming progenitors of the mouse cochlea. Cell Reports, 34(3). https://doi.org/10.1016/j.celrep.2020.108646 Cite
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