AI Article Synopsis
Article Abstract
Differential regulation of gene expression is essential for cell fate specification in metazoans. Characterizing the transcriptional activity of gene promoters, in time and in space, is therefore a critical step toward understanding complex biological systems. Here we present an in vivo spatiotemporal analysis for approximately 900 predicted C. elegans promoters (approximately 5% of the predicted protein-coding genes), each driving the expression of green fluorescent protein (GFP). Using a flow-cytometer adapted for nematode profiling, we generated 'chronograms', two-dimensional representations of fluorescence intensity along the body axis and throughout development from early larvae to adults. Automated comparison and clustering of the obtained in vivo expression patterns show that genes coexpressed in space and time tend to belong to common functional categories. Moreover, integration of this data set with C. elegans protein-protein interactome data sets enables prediction of anatomical and temporal interaction territories between protein partners.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1038/nbt1305 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Human induced pluripotent stem cell-derived therapies for regeneration after central nervous system injury.
Neural Regen Res
November 2025
Department of Neuroscience, Ohio State University, Columbus, OH, USA.
In recent years, the progression of stem cell therapies has shown great promise in advancing the nascent field of regenerative medicine. Considering the non-regenerative nature of the mature central nervous system, the concept that "blank" cells could be reprogrammed and functionally integrated into host neural networks remained intriguing. Previous work has also demonstrated the ability of such cells to stimulate intrinsic growth programs in post-mitotic cells, such as neurons.
View Article and Find Full Text PDFAminopeptidase-Responsive NIR Photosensitizer for Precision Targeting and Eradication of Biofilms.
ACS Appl Mater Interfaces
December 2024
State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
The emergence of resistance in represents a significant global health challenge, particularly due to the hurdle of effectively penetrating biofilms with antimicrobials. Moreover, the rise of antibiotic-resistant pathogens has driven the urgent need for developing innovative therapeutic approaches to overcome antibiotic resistance. Antibacterial phototherapy strategies have shown great potential for combating pathogens due to their broad-spectrum antimicrobial activity, spatiotemporal controllability, and relatively low rate of resistance emergence.
View Article and Find Full Text PDFBiomimetic "Trojan Horse" Fibers Modulate Innate Immunity Cascades for Nerve Regeneration.
ACS Nano
December 2024
Department of Orthopedics, The First Affiliated Hospital of Soochow University, 899 Pinghai Road, Suzhou 215006, Jiangsu, China.
Neutrophil membrane vesicles (NMVs) have been successfully applied to control the inflammatory cascade after spinal cord injury (SCI) by acting as an inflammatory factor decoy to front-load the overall inflammation regulatory window; however, the mechanisms by which NMVs regulate macrophage phenotypic shifts as well as their outcomes have rarely been reported. In this study, we demonstrated the "efferocytosis-like" effect of NMVs endocytosed by macrophages, supplementing the TCA cycle intermediate metabolite α-KG by promoting glutamine metabolism, which in turn facilitates oxidative phosphorylation and inhibits the NF-κB signaling pathway to reprogram inflammatory macrophages to the pro-regenerative phenotype. Based on these findings, a "Trojan horse" composite fiber scaffold was constructed; this comprised a carboxylated poly-l-lactic acid shell encapsulated with NMVs and a core loaded with brain-derived neurotrophic factor to spatiotemporally modulate the inflammatory microenvironment by 39.
View Article and Find Full Text PDFNear-Infrared Light-Activated DNA Nanodevice for Spatiotemporal In Vivo Fluorescence Imaging of Messenger RNA.
Anal Chem
December 2024
State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
Real-time visualization of messenger RNA (mRNA) is essential for tumor classification, grading, and staging. However, the low signal-to-background ratios and nonspatiotemporal specific signal amplification restricted the in vivo imaging of mRNA. In this study, a near-infrared (NIR) light-activated DNA nanodevice (DND) was developed for spatiotemporal in vivo fluorescence imaging of mRNA.
View Article and Find Full Text PDFSkin layer-specific spatiotemporal assessment of micrometabolism during wound angiogenesis.
Commun Biol
December 2024
Institute for Biomedical Engineering and Institute of Pharmacology and Toxicology, Faculty of Medicine, University of Zurich, 8057, Zurich, Switzerland.
Proper oxygen delivery through the microvasculature to injury site is essential to ensure the metabolic cascade during wound healing. Adaptation of vascular structure and oxygenation is key to unravel the regulation of blood perfusion, oxygen distribution and new tissue formation. Yet, visualizing micrometabolic responses at large scale in unperturbed living tissue remains challenging.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!