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Recent development of SARS-CoV-2 spike mRNA vaccines to control the pandemic is a breakthrough in the field of vaccine development. mRNA vaccines are generally formulated with lipid nanoparticles (LNPs) which are composed of several lipids with specific ratios; however, they generally lack selective delivery. To develop a selective delivery method for mRNA vaccine formulation, we reported here the synthesis of polymeric nanoparticles (PNPs) composed of a guanidine copolymer containing zwitterionic groups and a dendritic cell (DC)-targeted aryl-trimannoside ligand for encapsulation and selective delivery of an mRNA to dendritic cells. A DC-targeted SARS-CoV-2 spike mRNA-PNP vaccine was shown to elicit a stronger protective immune response in mice compared to the traditional mRNA-LNP vaccine and those without the selective delivery design. It is anticipated that this technology is generally applicable to other mRNA vaccines for DC-targeted delivery with enhanced immune response.
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http://dx.doi.org/10.1039/d3sc06575h | DOI Listing |
Nano Lett
September 2025
Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore.
Precise delivery of nanoliter-scale reagents is essential for high-throughput biochemical assays, yet existing platforms often lack real-time control and selective content fusion. Conventional methods rely on passive encapsulation or stochastic pairing, limiting both throughput and biochemical specificity. Here, we introduce an on-demand nanoliter delivery platform that seamlessly integrates electrical sensing, triggered droplet merging, and passive sorting in a single continuous flow.
View Article and Find Full Text PDFPLoS One
September 2025
School of Nursing, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia.
Background: Pediatric surgical diseases are conditions that require surgery in children to save lives, prevent disability, or provide palliative care. Surgeries can be major or minor based on factors like severity, and complexity. Prolonged hospital stay could significantly affect the limited resources of the hospital, and further lead to post-operative complications, and poor surgical outcome.
View Article and Find Full Text PDFBiomater Sci
September 2025
Department of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates.
Colorectal cancer (CRC) remains a major global health burden, necessitating more effective and selective therapeutic approaches. Nanocarrier-based drug delivery systems offer significant advantages by enhancing drug accumulation in tumors, reducing off-target toxicity, and overcoming resistance mechanisms. This review provides a comprehensive overview of recent advancements in nanocarriers for CRC therapy, including passive targeting the enhanced permeability and retention (EPR) effect, and active targeting strategies that exploit specific tumor markers using ligands such as antibodies, peptides, and aptamers.
View Article and Find Full Text PDFHepatology
September 2025
Department of Pathology, Department of Molecular Biology, Moores Cancer Center, University of California San Diego, La Jolla, CA 92037, USA.
Background And Aims: So far, there is no effective mechanism-based therapeutic agent tailored for liver tumors. Immune checkpoint inhibitors (ICIs) have demonstrated limited efficacy in liver cancer, often associated with severe adverse effects. Although poly-inosinic:cytidylic acid (polyIC) has shown an adjuvant effect when combined with anti-PD-L1 antibody (αPD-L1) in treating liver tumors in animal models, its systemic toxicity limits its clinical utility.
View Article and Find Full Text PDFCochrane Database Syst Rev
September 2025
Cochrane Evidence Synthesis Unit Germany/UK - Sub-Unit Düsseldorf, Institute of General Practice, Centre for Health and Society, Medical Faculty of the Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany.
Background: In order to improve the outcomes of children and adolescents with type 1 diabetes mellitus (T1DM), access to and quality of comprehensive acute and chronic care services in low- and middle-income countries (LMIC) must be improved.
Objectives: To identify and summarise the characteristics of models of care for T1DM in children and adolescents in LMIC.
Search Methods: We searched MEDLINE, Scopus, the Cochrane Central Register of Controlled Trials (CENTRAL), and the World Health Organization (WHO) Global Index Medicus from inception to 11 December 2023 without restrictions.