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Molecules, Vol. 25, Pages 6028: The Antiasthma Medication Ciclesonide Suppresses Breast Cancer Stem Cells through Inhibition of the Glucocorticoid Receptor Signaling-Dependent YAP Pathway
This study focused on investigating the effect of ciclesonide on breast cancer and CSCs and determining its underlying mechanism. Here, we showed that ciclesonide inhibits breast cancer and CSC formation. Similar glucocorticoids—dexamethasone and prednisone—did not inhibit CSC formation. Ciclesonide-induced glucocorticoid receptor (GR) degradation was dependent on ubiquitination. We showed via GR small interfering RNA (siRNA) that GR plays an important role in CSC formation. We showed via western blot and immunofluorescence assays that ciclesonide reduces the nuclear level of GR. The GR antagoni...
Source: Molecules - December 19, 2020 Category: Chemistry Authors: Su-Lim Kim Hack Sun Choi Ji-Hyang Kim Dong-Sun Lee Tags: Article Source Type: research

Glucocorticoids mobilize macrophages by transcriptionally up-regulating the exopeptidase DPP4 Cell Biology
Glucocorticoids are potent endogenous anti-inflammatory molecules, and their cognate receptor, glucocorticoid receptor (GR), is expressed in nearly all immune cells. Macrophages are heterogeneous immune cells having a central role in both tissue homeostasis and inflammation and also play a role in the pathogenesis of some inflammatory diseases. Paradoxically, glucocorticoids have only a limited efficacy in controlling the resolution of these macrophage-related diseases. Here, we report that the transcriptomes of monocyte-like THP-1 cells and macrophage-like THP-1 cells (THP1-MΦ) have largely conserved gene expression patt...
Source: Journal of Biological Chemistry - March 5, 2020 Category: Chemistry Authors: David Diaz-Jimenez, Maria Grazia Petrillo, Jonathan T. Busada, Marcela A. Hermoso, John A. Cidlowski Tags: Gene Regulation Source Type: research

Klotho and Inflammation Metabolism
Abnormal inflammation and accelerated decline in lung function occur in patients with chronic obstructive pulmonary disease (COPD). Klotho, an anti-aging protein, has an anti-inflammatory function. However, the role of Klotho has never been investigated in COPD. The aim of this study is to investigate the possible role of Klotho by alveolar macrophages in airway inflammation in COPD. Klotho levels were assessed in the lung samples and peripheral blood mononuclear cells of non-smokers, smokers, and patients with COPD. The regulation of Klotho expression by cigarette smoke extract (CSE) was studied in vitro, and small interf...
Source: Journal of Biological Chemistry - November 13, 2015 Category: Chemistry Authors: Li, L., Wang, Y., Gao, W., Yuan, C., Zhang, S., Zhou, H., Huang, M., Yao, X. Tags: Molecular Bases of Disease Source Type: research

SGK1 and Shank2E Cell Biology
The glucocorticoid dexamethasone increases cystic fibrosis transmembrane conductance regulator (CFTR) abundance in human airway epithelial cells by a mechanism that requires serum- and glucocorticoid-induced protein kinase 1 (SGK1) activity. The goal of this study was to determine whether SGK1 increases CFTR abundance by phosphorylating Shank2E, a PDZ domain protein that contains two SGK1 phosphorylation consensus sites. We found that SGK1 phosphorylates Shank2E as well as a peptide containing the first SGK1 consensus motif of Shank2E. The dexamethasone-induced increase in CFTR abundance was diminished by overexpression of...
Source: Journal of Biological Chemistry - June 12, 2014 Category: Chemistry Authors: Koeppen, K., Coutermarsh, B. A., Madden, D. R., Stanton, B. A. Tags: Molecular Bases of Disease Source Type: research