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Sensory experience controls dendritic structure and behavior by distinct pathways involving degenerins.
Elife
January 2025
Department of Biology, Technion - Israel Institute of Technology, Haifa, Israel.
Dendrites are crucial for receiving information into neurons. Sensory experience affects the structure of these tree-like neurites, which, it is assumed, modifies neuronal function, yet the evidence is scarce, and the mechanisms are unknown. To study whether sensory experience affects dendritic morphology, we use the arborized nociceptor PVD neurons, under natural mechanical stimulation induced by physical contacts between individuals.
View Article and Find Full Text PDFMagnetic Assisted DNA Logic Gate Nanomachine Based on CRISPR/Cas12a for Recognition of Dual miRNAs.
Chem Asian J
December 2024
State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China.
The anomalous expression of microRNA poses a serious threat to human life and health safety, and serves as an important biomarker for cancer detection. In this study, a novel magnetic-assisted DNA logic gate nanomachine triggered by miRNA-21 and miRNA-155 was designed based on the trans-cleavage activity of CRISPR/Cas12a activated by a split DNA activator, using only a single crRNA and signal probe, which simplified the detection procedure and complex nucleic acid amplification. The presence of target molecules, miRNA-21 and miRNA-155, can stimulate the DNA walker machine assembled on magnetic beads, which releases activator under the action of DNAzyme.
View Article and Find Full Text PDFThe culture of A549 cells and its secreted cytokine IL-6 monitoring on the designed multifunctional microfluidic chip.
Talanta
December 2024
Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Shapingba, Chongqing, 400044, China; School of Optoelectronics Engineering, Chongqing University, Shapingba, Chongqing, 400044, China. Electronic address:
A multifunctional microfluidic chip integrated with perfusion cell culture and in situ SERS detection of cell secretion was designed and developed for the detection of IL-6 secretion from LPS-stimulation of A549 cells in this paper. Researching works were focused on A549 cell activity and secretion in the constructed LPS-stimulated A549 cells model. On the designed microchip, a bubble trap chamber was designed to remove the bubbles in the culture medium which could also be simultaneously preheated by a split hot plate.
View Article and Find Full Text PDFSingle-Nucleus RNA Sequencing Reveals the Spatiotemporal Dynamics of Disease-Associated Microglia in Amyotrophic Lateral Sclerosis.
Research (Wash D C)
December 2024
Department of Medical Genetics and Center for Rare Diseases, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Disease-associated microglia (DAM) are observed in neurodegenerative diseases, demyelinating disorders, and aging. However, the spatiotemporal dynamics and evolutionary trajectory of DAM during the progression of amyotrophic lateral sclerosis (ALS) remain unclear. Using a mouse model of ALS that expresses a human gene mutation, we found that the microglia subtype DAM begins to appear following motor neuron degeneration, primarily in the brain stem and spinal cord.
View Article and Find Full Text PDFRepression of JAK2-STAT1 and PD-L1 by CEP-33779 ameliorates the LPS-induced decline in phagocytic activity of alveolar macrophages and mitigates lung injury in mice.
Front Immunol
December 2024
Guangdong Provincial Key Laboratory of Protein Modification and Degradation, Guangzhou Medical University, Guangzhou, China.
Background: The role of the JAK2-STAT1/PD-L1 pathway in the phagocytic activity of alveolar macrophages (AMs) during LPS-induced acute lung injury in mice remains poorly understood. This study aims to explore whether the JAK2-STAT1/PD-L1 pathway is upregulated on AMs in LPS-induced mice acute lung injury and to further explore the impact of the JAK2-specific inhibitor CEP-33779 on the LPS-induced impairment of AMs phagocytic activity and lung injury.
Methods: ALI was induced in mice via intratracheal administration of LPS, followed by intragastric administration of JAK2 inhibitor CEP-33779 suspension.
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