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Engineered Microtissues to Model the Effects of Dynamic Heterotypic Cell Signaling on iPSC-derived Human Hepatocyte Maturation.
Acta Biomater
March 2025
Department of Biomedical Engineering, University of Illinois Chicago, Chicago, Illinois 60607, USA. Electronic address:
In vitro human liver models are indispensable for compound metabolism/toxicity screening, disease modeling, and regenerative medicine. While induced pluripotent stem cell-derived human hepatocyte-like cells (iHeps) mitigate the sourcing limitations with primary human hepatocytes (PHHs), their functional maturity is rate-limiting for application use. During development, immature hepatoblasts interact with different non-parenchymal cell (NPC) types, such as mesenchyme and endothelia, in a spatiotemporal manner to progress through functional maturation.
View Article and Find Full Text PDFDual temporal pathway model of emotion processing based on dynamic network reconfiguration analysis of EEG signals.
Acta Psychol (Amst)
March 2025
Key Laboratory for Artificial Intelligence and Cognitive Neuroscience of Language, Xi'an International Studies University, Xi'an 710121, China.
Emotion is crucial for the quality of daily life. Recent findings suggest that the cooperation and integration of multiple brain regions are essential for effective emotion processing. Additionally, network reconfiguration has been observed during various cognitive tasks.
View Article and Find Full Text PDFGelatinous fibers develop asymmetrically to support bends and coils in common bean vines (Phaseolus vulgaris).
Am J Bot
March 2025
Department of Biology and Center for Lignocellulose Structure and Formation, Pennsylvania State University, University Park, PA, USA.
Premise: Gelatinous (G)-fibers are specialized fibers that generate tensile force to bend and straighten many plant organs; this phenomenon has been intensively studied in tension wood of trees. Previous work has shown that G-fibers are common within the stems of twining vines, but we lack the spatiotemporal developmental data required to determine whether, or how, G-fibers contribute to the movement and/or stabilization of twining tissues.
Methods: We employed multiple histochemical approaches to characterize the formation and cell wall architecture of G-fibers in twining and shrub phenotypes of common bean across a developmental time series.
A multimodal defect-rich nanoreactor triggers sono-piezoelectric tandem catalysis and iron metabolism disruption for implant infections.
Sci Adv
March 2025
Orthopedic Research Institute and Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, China.
Tracking and eradicating drug-resistant bacteria are critical for combating implant-associated infections, yet effective antibacterial therapies remain elusive. Herein, we propose an oxygen vacancy-rich (BiFe)(BaTi)O nanoreactor as a piezoelectric sonosensitizer by spatiotemporal ultrasound-driven sono- and chemodynamic tandem catalysis to amplify antibacterial efficacy. The piezoelectric charge carriers under a built-in electric field synchronize the reaction of O and HO, efficiently generating HO.
View Article and Find Full Text PDFIntegrative spatiotemporal modeling of biomolecular processes: Application to the assembly of the nuclear pore complex.
Proc Natl Acad Sci U S A
March 2025
Department of Bioengineering and Therapeutic Sciences, Quantitative Biosciences Institute, University of California, San Francisco, CA 94143.
Dynamic processes involving biomolecules are essential for the function of the cell. Here, we introduce an integrative method for computing models of these processes based on multiple heterogeneous sources of information, including time-resolved experimental data and physical models of dynamic processes. First, for each time point, a set of coarse models of compositional and structural heterogeneity is computed (heterogeneity models).
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