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| http://dx.doi.org/10.17179/excli2023-6636 | DOI Listing |
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Disorder within order: identification of the disordered loop of STAS domain as the inhibitory domain in SLC26A9 chloride channel.
J Biol Chem
December 2024
Physiology & Biomedical Engineering, Mayo Clinic College of Medicine & Science, Rochester, MN, 55906; Nephrology & Hypertension, Mayo Clinic College of Medicine & Science, Rochester, MN, 55906. Electronic address:
The chloride transporter-channel SLC26A9 is mediated by a reciprocal regulatory mechanism through the interaction between its cytoplasmic STAS domain and the R domain of CFTR. In vertebrate Slc26a9s, the STAS domain structures are interrupted by a disordered loop which is conserved in mammals but is variable in non-mammals. Despite the numerous studies involving the STAS domains in SLC26 proteins, the role of the disordered loop region has not been identified.
View Article and Find Full Text PDFArginine depletion-induced autophagy and metabolic dysregulation are involved in the disease severity of hand, foot, and mouth disease.
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December 2025
Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China.
Amino acid metabolism provides significant insight into the development and prevention of many viral diseases. Therefore, the present study aimed to compare the amino acid profiles of hand, foot, and mouth disease (HFMD) patients with those of healthy individuals and to further reveal the molecular mechanisms of HFMD severity. Using UPLC-MS/MS, we determined the plasma amino acid expression profiles of pediatric patients with HFMD (mild, = 42; severe, = 43) and healthy controls ( = 25).
View Article and Find Full Text PDFKnockdown of RASD1 improves MASLD progression by inhibiting the PI3K/AKT/mTOR pathway.
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Department of Hepatobiliary Surgery, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, 519000, People's Republic of China.
Background: There is still no reliable therapeutic targets and effective pharmacotherapy for metabolic dysfunction-associated steatotic liver disease (MASLD). RASD1 is short for Ras-related dexamethasone-induced 1, a pivotal factor in various metabolism processes of Human. However, the role of RASD1 remains poorly illustrated in MASLD.
View Article and Find Full Text PDFLoss of hepatocyte growth factor activator inhibitor type 1 (HAI-1) upregulates MMP-9 expression and induces degradation of the epidermal basement membrane.
Hum Cell
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Section of Oncopathology and Morphological Pathology, Department of Pathology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miazaki, 889-1692, Japan.
Hepatocyte growth factor activator inhibitor type 1 (HAI-1), which is encoded by the SPINT1 gene, is a membrane-associated serine proteinase inhibitor abundantly expressed in epithelial tissues. We had previously demonstrated that HAI-1 is critical for placental development, epidermal keratinization, and maintenance of keratinocyte morphology by regulating cognate proteases, matriptase and prostasin. After performing ultrastructural analysis of Spint1-deleted skin tissues, our results showed that Spint1-deleted epidermis exhibited partially disrupted epidermal basement-membrane structures.
View Article and Find Full Text PDFThe dual role of calnexin on malignant progression and tumor microenvironment in glioma.
Sci Rep
December 2024
National Engineering Research Center for Miniaturized Detection Systems, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China.
Glioma is the most common malignant brain tumor. Previous studies have reported that calnexin (CANX) is significantly up-regulated in a variety of malignant tumors, including glioma, but its biological function and mechanism in glioma is still unclear. In this study, differentially expressed proteins in 3 primary glioblastoma multiforme (GBM) tissues and 3 paracancer tissues were identified by liquid chromatography-tandem mass spectrometry-based proteomic and bioinformatic analysis.
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