ADAM10 (A Disintegrin and Metalloproteinase 10) has been identified as the major physiological alpha-secretase in neurons, responsible for cleaving APP in a non-amyloidogenic manner. This cleavage results in the production of a neuroprotective APP-derived fragment, APPs-alpha, and an attenuated production of neurotoxic A-beta peptides. An increase in ADAM10 activity shifts the balance of APP processing toward APPs-alpha and protects the brain from amyloid deposition and disease. Thus, increasing ADAM10 activity has been proposed an attractive target for the treatment of neurodegenerative diseases and it appears to be timely to investigate the physiological mechanisms regulating ADAM10 expression. Therefore, in this article, we will (1) review reports on the physiological regulation of ADAM10 at the transcriptional level, by epigenetic factors, miRNAs and/or protein interactions, (2) describe conditions, which change ADAM10 expression and , (3) report how neuronal ADAM10 expression may be regulated in humans, and (4) discuss how this knowledge on the physiological and pathophysiological regulation of ADAM10 may help to preserve or restore brain function.
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http://dx.doi.org/10.3389/fnmol.2017.00056 | DOI Listing |
Toxics
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School of Public Health, North China University of Science and Technology, Tangshan 063210, China.
Hypertension is not merely a vascular disorder but a significant risk factor for neural impairment. Moreover, healthcare for the hypertensive population with environmental or occupational pollutants has become an issue of increasing concern in public health. As a traditional neurotoxic heavy metal, Pb exposure results in neuroinflammation as well as neurodegenerative diseases.
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Department of Clinical Sciences, Lund Brain Injury Laboratory for Neurosurgical Research, Lund University, 222 20, Lund, Sweden.
Traumatic brain injury (TBI) often leads to impaired regulation of cerebral blood flow, which may be caused by pathological changes of the vascular smooth muscle cells (VSMCs) in the arterial wall. Moreover, these cerebrovascular changes may contribute to the development of various neurodegenerative disorders such as Alzheimer's-like pathologies that include amyloid beta aggregation. Despite its importance, the pathophysiological mechanisms responsible for VSMC dysfunction after TBI have rarely been evaluated.
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Department of Dermatology, Weill Cornell Medicine, New York, New York, USA.
Calcitonin gene-related peptide (CGRP) biases Langerhans cell (LC) Ag presentation to CD4 T cells towards Th17-type immunity through actions on endothelial cells (ECs). We now report further evidence that IL-6 signalling at responding T cells mediates this effect. This CGRP effect was absent with ECs from IL-6 KO mice.
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January 2025
Department of Translational Medicine and for Romagna, University of Ferrara, Via Luigi Borsari 46, 44121, Ferrara, Italy.
Amyloid beta (Aβ) dyshomeostasis is considered the main biological aberration in Alzheimer's Disease (AD) pathology. The interplay between Aβ formation and clearance is predominantly modulated by a disintegrin and a metalloproteinase 10 (ADAM10, α-secretase) and β-site APP Cleaving Enzyme 1 (BACE1), the two pivotal enzymes in both non-amyloidogenic/amyloidogenic and amyloidolytic pathways. Emerging evidence suggests that aberrations in ADAM10 and BACE1 expression, activity, and function in the brain of AD patients also manifest in peripheral fluids, suggesting their potential as blood-based biomarkers for AD diagnosis.
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Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Soluble, circulating Klotho (sKlotho) is essential for normal health and renal function. sKlotho is shed from the renal distal convoluted tubule (DCT), its primary source, via enzymatic cleavage. However, the physiologic mechanisms that control sKlotho production, trafficking, and shedding are not fully defined.
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