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Few of the many chemicals that regulatory agencies are charged with assessing for risk have been carefully tested for developmental neurotoxicity (DNT). To speed up testing efforts, as well as to reduce the use of vertebrate animals, great effort is being devoted to alternate laboratory models for testing DNT. A major mechanism of DNT is altered neuronal architecture resulting from chemical exposure during neurodevelopment.
View Article and Find Full Text PDFAutoimmunity affects 10% of the population. Within this umbrella, autoantibody-mediated diseases targeting one autoantigen provide a unique opportunity to comprehensively understand the developmental pathway of disease-causing B cells and autoantibodies. While such autoreactivities are believed to be generated during germinal centre reactions, the roles of earlier immune checkpoints in autoantigen-specific B cell tolerance are poorly understood.
View Article and Find Full Text PDFFrom X- To J-Aggregation: Subtly Managing Intermolecular Interactions for Superior Phototheranostics with Precise 1064 nm Excitation.
Adv Healthc Mater
January 2025
College of Chemistry and Chemical Engineering and Jiangxi Provincial Key Laboratory of Functional Crystalline Materials Chemistry, Nanchang University, Nanchang, 330031, China.
The stacking mode in aggregate state results from a delicate balance of supramolecular interactions, which closely affects the optoelectronic properties of organic π-conjugated systems. Then, managing these interactions is crucial for advancing phototheranostics, yet remains challenging. A subtle strategy involving peripheral phenyl groups is debuted herein to transform X-aggregated SQ-H into J-aggregated SQ-Ph, reorienting intermolecular dipole interactions while rationally modulating π-π interactions.
View Article and Find Full Text PDFProgressive Approaches in Oncological Diagnosis and Surveillance: Real-Time Impedance-Based Techniques and Advanced Algorithms.
Bioelectromagnetics
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Micropropulsion and Nanotechnology Laboratory, School of Engineering and Applied Science, George Washington University, Washington, DC, USA.
Cancer remains a formidable global health challenge, necessitating the development of innovative diagnostic techniques capable of early detection and differentiation of tumor/cancerous cells from their healthy counterparts. This review focuses on the confluence of advanced computational algorithms with noninvasive, label-free impedance-based biophysical methodologies-techniques that assess biological processes directly without the need for external markers or dyes. This review elucidates a diverse array of state-of-the-art impedance-based technologies, illuminating distinct electrical signatures inherent to cancer vs healthy tissues.
View Article and Find Full Text PDFEngineered extracellular vesicles for TGF-β encapsulation as a therapeutic strategy against LPS-induced systemic inflammation.
Int Immunopharmacol
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National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry (Shaanxi Normal University), The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710119, China. Electronic address:
Inflammation underlies a wide variety of physiological and pathological processes, the Lipopolysaccharide (LPS)-induced inflammation model is widely recognized as a classical inflammatory paradigm, while Transforming growth factor-β (TGF-β) serves as a potent immunosuppressant capable of inhibiting immune responses and mitigating inflammation. However, its in vivo instability and the high cost associated with purification have imposed limitations on its clinical application. Therefore, we propose a therapeutic strategy for genetically modifying extracellular vesicles (HEVs) derived from HEK-293 T cells to incorporate TGF-β which holds potential for mitigating LPS-induced inflammation.
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