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DCLK1 inhibition attenuates tumorigenesis and improves chemosensitivity in esophageal squamous cell carcinoma by inhibiting β-catenin/c-Myc signaling.
In this study, real-time PCR and western blot analysis confirmed significant upregulation of DCLK1 expression in human ESCC tissues and cell lines. CCK-8 assay showed that transfection with siRNA against DCLK1 (si-DCLK1) markedly inhibited cell proliferation and colony formation in the ESCC cell lines Eca109 and TE1. Transwell assay revealed that si-DCLK1 transfection inhibited the migratory and invasive capacities of Eca109 and TE1 cells. Moreover, si-DCLK1 increased the chemosensitivity of these cells to cisplatin, as indicated by inhibited cell viability and colony formation, and increased ROS and apoptosis in cisplatin...
Source: Pflugers Archiv : European Journal of Physiology - June 11, 2020 Category: Physiology Authors: Zhang L, Zhou S, Guo E, Chen X, Yang J, Li X Tags: Pflugers Arch Source Type: research

The JAK/STAT Pathway in Skeletal Muscle Pathophysiology
Conclusion and Perspectives The IL-6/JAK/STAT signaling cascade plays a dominant role in skeletal muscle pathophysiology. IL-6 autocrine, paracrine, and endocrine functions assign to its downstream effectors pivotal importance in skeletal muscle-wasting-associated diseases and other multiple system diseases where muscle acts in communication with other organs. Targeting the components of the JAK/STAT pathway recently emerged as a strategic approach for the treatment of inflammatory diseases and human cancer. This review highlights the opposite outcomes on muscle biology caused by the amount of local and systemic release ...
Source: Frontiers in Physiology - April 29, 2019 Category: Physiology Source Type: research

Increasing Upstream Chromatin Long –Range Interactions May Favor Induction of Circular RNAs in LysoPC-Activated Human Aortic Endothelial Cells
We examined the sponging potential of all significantly changed circRNAs using the CircInteractome database (Montefiori et al., 2018), recording two miRNAs with four or more predicted binding sites in a single circRNA transcript, a threshold above which meaningful sponging activity is likely to occur Memczak et al. (2013). Another four significantly changed circRNAs are experimentally shown to sponge miRNAs (Dudekula et al., 2016; Chen et al., 2017; Yan et al., 2017; Wang et al., 2018), for six total circRNAs with miRNA sponging activity including miR125, miR143, miR1272, miR153, miR515-5p, and miR196a-5p (Table 4). In Fig...
Source: Frontiers in Physiology - April 17, 2019 Category: Physiology Source Type: research

Systems Biology Approaches and Precision Oral Health: A Circadian Clock Perspective
Conclusion Most head and neck pathologies show a broad cellular heterogeneity making it difficult to achieve an accurate diagnosis and efficient treatment (Graf and Zavodszky, 2017; Lo Nigro et al., 2017). Single cell analysis of circadian omics (Lande-Diner et al., 2015; Abraham et al., 2018), may be a crucial tool needed in the future to fully understand the circadian control of head and neck diseases. It becomes more obvious that there is only a small genetic component but a largely unknown epigenetics and/or environmental component for most of the head and neck pathologies (Moosavi and Motevalizadeh Ardekani, 2016; He...
Source: Frontiers in Physiology - April 15, 2019 Category: Physiology Source Type: research

microRNA-33a prevents epithelial-mesenchymal transition, invasion and metastasis of gastric cancer cells through the Snail/Slug pathway.
This study suggests that miR-33a inhibited EMT, invasion and metastasis of GC through the Snail/Slug signaling pathway by modulating SNAI2 expression. PMID: 30943047 [PubMed - as supplied by publisher]
Source: American Journal of Physiology. Gastrointestinal and Liver Physiology - April 2, 2019 Category: Physiology Authors: Chen DD, Cheng JT, Chandoo A, Sun XW, Zhang L, Lu MD, Sun WJ, Huang YP Tags: Am J Physiol Gastrointest Liver Physiol Source Type: research

Putative role of the H(+)/sucrose symporter SLC45A3 as an osmolyte transporter in the kidney.
Abstract The solute carrier family 45 a3 member (SLC45A3), known also as prostein, has been implicated with prostate cancer and the regulation of lipid metabolism in oligodendrocytes. Recently, we expressed SLC45A3 in yeast cells and characterised it as a proton-coupled sucrose symporter. However, the physiological functions of SLC45A3 were still unknown. Here, we report that SLC45A3 occurs in the kidney and is highly expressed in the medullary collecting duct (IMCD), a part of the kidney responsible for final urine concentration and faced to hyperosmotic environment. Moreover, messenger RNA (mRNA) expression of e...
Source: Pflugers Archiv : European Journal of Physiology - May 25, 2016 Category: Physiology Authors: Vitavska O, Edemir B, Wieczorek H Tags: Pflugers Arch Source Type: research

Acid-sensitive outwardly rectifying (ASOR) anion channels in human epithelial cells are highly sensitive to temperature and independent of ClC-3.
Abstract A novel type of anion channel activated by extracellular acidification, called acid-sensitive outwardly rectifying (ASOR) anion channel, was shown to be involved in acidotoxic necrotic death in human epithelial cells. However, its biophysical property and molecular identity have remained elusive. In human epithelial HeLa cells, here, whole-cell currents of ASOR anion channel were found to be augmented by warm temperature, with a threshold temperature of 32 °C. Temperature sensitivity of the conductance was found to be high (with Q 10 of 8.8) in the range of body temperature, suggesting a possible involv...
Source: Pflugers Archiv : European Journal of Physiology - May 26, 2013 Category: Physiology Authors: Sato-Numata K, Numata T, Okada T, Okada Y Tags: Pflugers Arch Source Type: research