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Cell surface modification has been extensively studied to enhance the efficacy of cell therapy. Still, general accessibility and versatility are remaining challenges to meet the increasing demand for cell-based therapy. Herein, we present a facile and universal cell surface modification method that involves mild reduction of disulfide bonds in cell membrane protein to thiol groups. The reduced cells are successfully coated with biomolecules, polymers, and nanoparticles for an assortment of applications, including rapid cell assembly, in vivo cell monitoring, and localized cell-based drug delivery. No adverse effect on cellular morphology, viability, proliferation, and metabolism is observed. Furthermore, simultaneous coating with polyethylene glycol and dexamethasone-loaded nanoparticles facilitates enhanced cellular activities in mice, overcoming immune rejection.
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http://dx.doi.org/10.1021/jacs.7b08440 | DOI Listing |
Aesthetic Plast Surg
September 2025
Department of Plastic Surgery, The First Affiliated Hospital, Jinan University, No. 613 West, Huangpu Avenue, Guangzhou, 510630, Guangdong Province, China.
Background: Microfocused ultrasound (MFU) is a non-invasive technique used for facial rejuvenation, yet there is limited quantitative data on its long-term effects. This study aimed to evaluate the long-term efficacy and safety of MFU for facial rejuvenation. We utilized standardized photography along with advanced skin assessment technologies to analyze the impact of MFU on facial morphology, skin function, and patient satisfaction over a 12-month period.
View Article and Find Full Text PDFOsteoarthritis Cartilage
September 2025
Department of Clinical & Experimental Medicine, Brighton & Sussex Medical School, Brighton BN1 9PX, UK. Electronic address:
Objective: Therapeutic potential of selective aggrecanase inhibition in osteoarthritis (OA) was previously demonstrated using a variant of endogenous tissue inhibitor of metalloproteinase-3 (TIMP-3); however, this relied on transgenic mice overexpressing TIMP-3. Here, we develop a translational approach for harnessing the aggrecanase-selective inhibitory activity of TIMP-3 using the latency associated peptide (LAP) technology.
Methods: We successfully produced and purified recombinant LAP-TIMP-3 fusion proteins and determined the pharmacokinetics of these proteins in vivo following systemic injection.
Biomaterials
September 2025
Medical Research Institute, Department of Orthopedics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China. Electronic address:
Contrary to the traditional strengthening route by adding multiple & high-dosage alloying elements, we here explored extremely compositional and phase-constituent "simplification" in rare earth (RE) containing biodegradable magnesium alloys for better biocompatibility. An ultra-lean Mg-0.1Pr alloy with a multiscale microstructure has been developed through casting and extrusion, which showed well-balanced performances that match the commercial Mg-based orthopedic products.
View Article and Find Full Text PDFClin Orthop Relat Res
September 2025
Department of Neurosurgery, Leiden University Medical Centre, Leiden, The Netherlands.
Background: Lumbar spinal stenosis (LSS) is common in adults with achondroplasia and predisposes individuals to neurogenic claudication. It remains unverified whether the severity of stenosis in patients with achondroplasia is associated with clinical outcomes. Similarly, the role of sagittal balance parameters in clinical outcomes has not been determined.
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