Antagonists of the Serotonin Receptor 5A Target Human Breast Tumor Initiating Cells

Researchers found that selective antagonists of 5-HT5A reduced the frequency of tumorsphere initiating cells residing in breast tumor cell lines and those of patient-derived xenografts that they established.
[BMC Cancer]
Gwynne, W. D., Shakeel, M. S., Girgis-Gabardo, A., Kim, K. H., Ford, E., Dvorkin-Gheva, A., Aarts, C., Isaac, M., Al-awar, R., & Hassell, J. A. (2020). Antagonists of the serotonin receptor 5A target human breast tumor initiating cells. BMC Cancer, 20(1), 724. https://doi.org/10.1186/s12885-020-07193-6 Cite
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Berberine Improves Intralipid-Induced Insulin Resistance in Murine

Investigators showed that berberine administration markedly ameliorated intralipid-induced insulin resistance without affecting blood glucose. They used human skeletal muscle cells, hepatocytes, human umbilical vein endothelial cells, and CypD knockout mice to investigate metabolic and molecular alternations.
[Acta Pharmacologica Sinica]
Dong, Z., Lin, H., Chen, F., Che, X., Bi, W., Shi, S., Wang, J., Gao, L., He, Z., & Zhao, J. (2020). Berberine improves intralipid-induced insulin resistance in murine. Acta Pharmacologica Sinica, 1–9. https://doi.org/10.1038/s41401-020-0493-4 Cite
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Reduced Mrp2 Surface Availability as PI3Kγ-Mediated Hepatocytic Dysfunction Reflecting a Hallmark of Cholestasis in Sepsis

Keeping the surface availability of the biliary transporter Mrp2 is a cell biological process that may underlie the observation that PI3Kγ loss-of-function protects from hepatic excretory dysfunction during early sepsis
[Scientific Reports]
Beer, A. J., Hertz, D., Seemann, E., Beretta, M., Westermann, M., Bauer, R., Bauer, M., Kessels, M. M., & Qualmann, B. (2020). Reduced Mrp2 surface availability as PI3Kγ-mediated hepatocytic dysfunction reflecting a hallmark of cholestasis in sepsis. Scientific Reports, 10(1), 13110. https://doi.org/10.1038/s41598-020-69901-3 Cite
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ERK/MAPK Signaling Is Essential for Intestinal Development through Wnt Pathway Modulation

Scientists found that deletion of Erk1/2 in intestinal epithelial cells at embryonic stages resulted in an unexpected increase in cell proliferation and migration, expansion of intestinal stem cells and formation of polyp-like structures, leading to postnatal death.
[Development]
ERK/MAPK signaling is essential for intestinal development through Wnt pathway modulation | Development. (n.d.). Retrieved August 7, 2020, from https://dev.biologists.org/content/early/2020/07/30/dev.185678 Cite
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Berberine Improves Intralipid-Induced Insulin Resistance in Murine

Scientists showed that berberine administration markedly ameliorated intralipid-induced insulin without affecting blood glucose, which was accompanied by alleviated mitochondrial swelling in skeletal muscle. They used human skeletal muscle cells, AML12 hepatocytes, HUVECs, and CypD knockout mice to investigate metabolic and molecular alternations.
[Acta Pharmacologica Sinica]
Dong, Z., Lin, H., Chen, F., Che, X., Bi, W., Shi, S., Wang, J., Gao, L., He, Z., & Zhao, J. (2020). Berberine improves intralipid-induced insulin resistance in murine. Acta Pharmacologica Sinica, 1–9. https://doi.org/10.1038/s41401-020-0493-4 Cite
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Quercetin–Resveratrol Combination for Prostate Cancer Management in TRAMP Mice

Scientists determined the effects of grape antioxidants quercetin and/or resveratrol against prostate cancer in the transgenic adenocarcinoma of mouse prostate (TRAMP)-model in prevention and intervention settings.
[Cancers]
Singh, C. K., Chhabra, G., Ndiaye, M. A., Siddiqui, I. A., Panackal, J. E., Mintie, C. A., & Ahmad, N. (2020). Quercetin–Resveratrol Combination for Prostate Cancer Management in TRAMP Mice. Cancers, 12(8), 2141. https://doi.org/10.3390/cancers12082141 Cite
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Polydatin Executes Anticancer Effects against Glioblastoma Multiforme by Inhibiting the EGFR-AKT/ERK1/2/STAT3-SOX2/Snail Signaling Pathway

The authors demonstrated that polydatin repressed cell proliferation, migration, invasion and stemness and promoted apoptosis in glioblastoma multiforme cells.
[Life Sciences]
Chen, Y., Niu, J., Li, L., Li, Z., Jiang, J., Zhu, M., Dong, T., Zhang, J., Shi, C., Xu, P., Lu, Y., Jiang, Y., Liu, P., & Chen, W. (2020). Polydatin executes anticancer effects against glioblastoma multiforme by inhibiting the EGFR-AKT/ERK1/2/STAT3-SOX2/Snail signaling pathway. Life Sciences, 118158. https://doi.org/10.1016/j.lfs.2020.118158 Cite
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Inhibition of Protein Kinase D by CID755673 Promotes Maintenance of the Pluripotency of Embryonic Stem Cells

Investigators showed that the protein kinase D inhibitor CID755673 was able to maintain the undifferentiated state of mouse ESCs in combination with the mitogen-activated protein kinase kinase inhibitor.
[Development]
Zhu, Z., Zhang, Y., Wang, X., Wang, X., & Ye, S.-D. (2020). Inhibition of protein kinase D by CID755673 promotes maintenance of the pluripotency of embryonic stem cells. Development. https://doi.org/10.1242/dev.185264 Cite
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Hotspot Mutant p53-R273H Inhibits KLF6 Expression to Promote Cell Migration and Tumor Metastasis

Scientists revealed an important role for EGFR–AKT–FOXO1–KLF6–E-cadherin axis in mutant p53-induced cell migration and tumor metastasis.
[Cell Death & Disease]
Sun, S., Chen, H., Sun, L., Wang, M., Wu, X., & Xiao, Z.-X. J. (2020). Hotspot mutant p53-R273H inhibits KLF6 expression to promote cell migration and tumor metastasis. Cell Death & Disease, 11(7), 1–9. https://doi.org/10.1038/s41419-020-02814-1 Cite
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Oncogenic Smurf1 Promotes PTEN Wild-Type Glioblastoma Growth by Mediating PTEN Ubiquitylation

Smurf1 promotes cell growth and colony formation by accelerating cell cycle and aberrant signaling pathways. In addition, the authors showed that Smurf1 ubiquitylates and degrades phosphatase and tensin homolog.
[Oncogene]
Xia, Q., Zhang, H., Zhang, P., Li, Y., Xu, M., Li, X., Li, X., & Dong, L. (2020). Oncogenic Smurf1 promotes PTEN wild-type glioblastoma growth by mediating PTEN ubiquitylation. Oncogene, 1–14. https://doi.org/10.1038/s41388-020-01400-1 Cite
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Progesterone Receptor Membrane Component 1 Promotes the Growth of Breast Cancers by Altering the Phosphoproteome and Augmenting EGFR/PI3K/AKT Signalling

Investigators demonstrated that progesterone receptor membrane component 1 played a prominent role in regulating the growth of cancer cells by altering the PI3K/AKT/mTOR and EGFR signalling mechanisms in both ER-positive and TNBC cells.
[British Journal of Cancer]
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Osteogenic Cocktail Induces Calcifications in Human Breast Cancer Cell Line via Placental Alkaline Phosphatase Expression

The authors found that breast cancer cells acquired alkaline phosphatase enzyme activity via placental alkaline phosphatase expression and suggested that breast calcification formation was closely associated with the PI3K-Akt signaling pathway.
[Scientific Reports]
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