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Enhanced Macrophage Uptake of Spray-Dried Phosphatidylserine-Loaded Microparticles for Pulmonary Drug Delivery Applications.
J Drug Deliv Sci Technol
February 2025
Department of Chemical Engineering, University of Rhode Island, Kingston, RI 02881 USA.
Macrophages are an integral part of the innate immune system and act as a first line of defense to pathogens; however, macrophages can be reservoirs for pathogens to hide and replicate. Tuberculosis, influenza virus, and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are common diseases whose pathogens are uptaken into macrophages. Current treatments for diseases such as these are limited by the therapeutic delivery method, which typically involves systemic delivery in large, frequent doses.
View Article and Find Full Text PDFRecent Advances in Asymmetric Organometallic Electrochemical Synthesis (AOES).
Acc Chem Res
January 2025
State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.
ConspectusIn recent years, our research group has dedicated significant effort to the field of asymmetric organometallic electrochemical synthesis (AOES), which integrates electrochemistry with asymmetric transition metal catalysis. On one hand, we have rationalized that organometallic compounds can serve as molecular electrocatalysts (mediators) to reduce overpotentials and enhance both the reactivity and selectivity of reactions. On the other hand, the conditions for asymmetric transition metal catalysis can be substantially improved through electrochemistry, enabling precise modulation of the transition metal's oxidation state by controlling electrochemical potentials and regulating the electron transfer rate via current adjustments.
View Article and Find Full Text PDFA multicenter Phase II randomized, placebo-controlled single-blind trial with the SV2A ligand seletracetam in photosensitive epilepsy patients.
Epilepsy Behav
January 2025
Translational Neuropharmacology Lab, NIFE, Department of Experimental Otology of the ENT Clinics, Hannover Medical School, Hannover, Germany. Electronic address:
The objective of this study was to evaluate the effect of seletracetam (SEL), a potent modulator of synaptic vesicle glycoprotein 2A (SV2A), in patients with photoparoxysmal EEG response (PPR) to intermittent photic stimulation (IPS) as proof-of-principle of efficacy in patients with epilepsy. In this multicenter, single-blind Phase II study, adults with photosensitive epilepsy, with/without concomitant antiseizure medication therapy, underwent IPS under 3 eye conditions (at eye closure, eyes closed and eyes open) after a single oral dose of placebo (day - 1) or SEL (day 1; 0.5, 1, 2, 4, 10, or 20 mg).
View Article and Find Full Text PDFControl of biomedical nanoparticle distribution and drug release in vivo by complex particle design strategies.
Eur J Pharm Biopharm
January 2025
Department of Pharmaceutical Technology, University of Regensburg 93053 Regensburg, Bavaria, Germany. Electronic address:
The utilization of targeted nanoparticles as a selective drug delivery system is a powerful tool to increase the amount of active substance reaching the target site. This can increase therapeutic efficacy while reducing adverse drug effects. However, nanoparticles face several challenges: upon injection, the immediate adhesion of plasma proteins may mask targeting ligands, thereby diminishing the target cell selectivity.
View Article and Find Full Text PDFTargeted delivery of polymeric NO-donor micelles to hepatic stellate cells for restoration of liver function and inhibition of hepatic fibrosis.
J Control Release
January 2025
Department of Pharmaceutical Engineering, China Pharmaceutical University, Nanjing 211198, China. Electronic address:
Liver fibrosis is a prevalent liver disease associated with significant morbidity, and the activation of hepatic stellate cells (HSCs) serves as the primary causative factor driving the progression of liver fibrosis. However, capillarization of liver sinusoidal endothelial cells (LSECs) induced by hepatic fibrosis can reduce nitric oxide (NO) production and bioavailability, which consequently loses the ability to retain HSCs dormant, leading to amplified HSCs activation. Herein, an elaborate micelle (VN-M@BN) loaded with benazepril (BN) was constructed by self-assembly of polymeric NO donor, aiming for the controlled release of NO in liver fibrosis lesions thereby impeding the progression of liver fibrosis.
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