Amyloid-β (Aβ ) is strongly associated with Alzheimer's disease (AD). The aim of this study is to elucidate whether and how miR-6076 participates in the modulation of amyloid-β (Aβ)-induced neuronal damage. To construct the neuronal damage model, SH-SY5Y cells were treated with Aβ . By qRT-PCR, we found that miR-6076 is significantly upregulated in Aβ -treated SH-SY5Y cells. After miR-6076 inhibition, p-Tau and apoptosis levels were downregulated, and cell viability was increased. Through online bioinformatics analysis, we found that B-cell lymphoma 6 (BCL6) was a directly target of miR-6076 via dual-luciferase reporter assay. BCL6 overexpression mediated the decrease in elevated p-Tau levels and increased viability in SH-SY5Y cells following Aβ1-42 treatment. Our results suggest that down-regulation of miR-6076 could attenuate Aβ -induced neuronal damage by targeting BCL6, which provided a possible target to pursue for prevention and treatment of Aβ-induced neuronal damage in AD.
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http://dx.doi.org/10.1111/jcmm.17999 | DOI Listing |
Int Immunopharmacol
December 2024
Department of Neurosurgery, the Eighth Affiliated Hospital of Sun Yat-Sen University, Shenzhen 518000, China; Neurobiology Research Center, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Shenzhen 518000, China. Electronic address:
Currently, stroke is a disease with high disability and mortality risks and no effective treatment. The pathogenesis and molecular mechanisms of neuronal damage in stroke are highly complex. Pyroptosis participates in neuronal death after stroke.
View Article and Find Full Text PDFCommun Biol
December 2024
Department of Neuroscience and Cell Biology, Robert Wood Johnson Medical School, Rutgers University, Piscataway, NJ, USA.
Integrin_K Channel_Complexes (IKCs), are implicated in neurodevelopment and cause developmental and epileptic encephalopathy (DEE) through mechanisms that were poorly understood. Here, we investigate the function of neocortical IKCs formed by voltage-gated potassium (Kv) channels Kcnb1 and α5β5 integrin dimers in wild-type (WT) and homozygous knock-in (KI) Kcnb1 mouse model of DEE. Kcnb1 mice suffer from severe cognitive deficit and compulsive behavior.
View Article and Find Full Text PDFSci Rep
December 2024
School of Medicine, University of St Andrews, Medical and Biological Sciences Building, North Haugh, St Andrews, UK.
Intracerebral haemorrhage (ICH) is the most severe subtype of stroke, with a 2-year mortality of nearly 50% and the greatest rate of disability amongst stroke survivors. Whilst treatment options for ICH remain limited, the condition requires prompt identification and rapid intervention to reduce permanent brain damage, with diagnosis traditionally confirmed by CT imaging. Although imaging is excellent at determining the presence of an intracranial bleed, biomarkers may help to identify the type of stroke or when the stroke began.
View Article and Find Full Text PDFChemosphere
December 2024
Systems Toxicology Group, Food, Drug & Chemical, Environment and Systems Toxicology Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow-226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India. Electronic address:
The review aims to examine the neurotoxic effects of arsenic, particularly exploring the roles of glial cells-astrocytes, microglia, and oligodendrocytes, amid its widespread environmental contamination and impact on cognitive impairments. It highlights the role of altered neurotrophin and growth factor signaling in disrupting neuronal health and cognitive performance. It elucidates the intricate interactions between oxidative stress, DNA damage, neurotransmitter disruption, and cellular signaling alterations, underscoring the vital importance of the glial cells.
View Article and Find Full Text PDFInt Immunopharmacol
December 2024
Department of Pathology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China. Electronic address:
Heme oxygenase 1 (HO-1), an enzyme involved in heme catabolism, has been shown upregulated in microglia cells and plays a critical roles in neurological damages after intracerebral hemorrhage (ICH). However, the mechanisms by which HO-1 mediates the neuronal damages are still obscure. Here, our findings demonstrate that HO-1 over-expression exacerbates the pro-inflammatory response of microglia and induces neuronal ferroptosis through promoting intracellular iron deposition in the ICH model both in vitro and in vivo.
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