A series of oleandrin-4'-yl ester derivatives were designed, synthesized, and evaluated for their proliferation inhibition activities against tumor cell lines. Cytotoxicity data revealed that the C4' moiety had an important influence on cytotoxic activity. Several compounds that we designed and synthesized exhibit significant in vitro antiproliferative activity against the tested tumor cell lines. Among the derivatives of OL, 4b-HCl not only had good anti-tumor activity but also had good water solubility. Furthermore, 4b-HCl can significantly inhibit tumor growth by 96.4% at a dose of 6 mg/kg/d by ip.
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http://dx.doi.org/10.1016/j.steroids.2020.108650 | DOI Listing |
Alzheimers Dement
December 2024
Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, U.S.A., Philadelphia, PA, USA.
Background: This study investigates the therapeutic versus side effects of intranasal lithium chloride (LiCl) in Ryanodex formulation vehicle (RFV) to inhibit inflammation and pyroptosis and to ameliorate on cognitive dysfunction and depressive behavior in 5XFAD mice.
Method: 5XFAD and wild type (WT) B6SJLF1/J mice were treated with intranasal or oral LiCl (3 mM/kg) dissolved in RFV starting at 2 or 9 months old and the continuous treatment lasted for 12 weeks. Behavior was examined for depression, cognition, olfaction, and motor function at the ages of 5 or 12 months.
Alzheimers Dement
December 2024
Indiana University School of Medicine, Indianapolis, IN, USA.
Background: The goal of the TREAT-AD Center is to enable drug discovery by developing assays and providing tool compounds for novel and emerging targets. The role of microglia in neuroinflammation has been implicated in the pathogenesis of Alzheimer's disease (AD). Genome-wide association studies, whole genome sequencing, and gene-expression network analyses comparing normal to AD brain have identified risk and protective variants in genes essential to microglial function.
View Article and Find Full Text PDFBackground: Alzheimer's Disease (AD) is a neurodegenerative disorder characterized by the accumulation of neurofibrillary tangles (NFTs) which consist primarily of hyperphosphorylated tau protein. Abnormal phosphorylated tau has been considered as a pathogenic species that impairs cellular function and propagates from neuron to neuron. AD affects millions of people around the world, however, there's no effective drug that can prevent or cure the disease to date.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Department of Neurology, University of Fukui, Matsuoka, Fukui, Japan.
Background: One of the pathological hallmarks in Alzheimer's disease (AD) brain is neurofibrillary tangles (NFTs) composed of highly phosphorylated tau protein. Clinical benefit of traditional Japanese Kampo Yokukansan for dementia patients, including AD was suggested. In this study, we investigated whether yokukansan participates in the degradation of phosphorylated tau and toxic oligomeric species of tau by using cell culture model of tauopathy, M1C cells.
View Article and Find Full Text PDFBackground: Focused Ultrasound-induced Blood-Brain Barrier Opening (FUS-BBBO) has demonstrated preventative and therapeutic efficacy for improving cognitive and pathological decline in Alzheimer's Disease (AD). Previous work has demonstrated highly specific binding of a novel Re complex (Re-1) complex to amyloid-β (Aβ) in vitro, subsequently inhibiting fibril formation and reducing Aβ-induced cytotoxicity in neuronal cell cultures. The aim of this preliminary study is to evaluate the efficacy of early intervention combining FUS-BBBO and Re-1 for anxiety amelioration and memory improvement in a triple transgenic (3xTg)-AD mouse model.
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