Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Changes in intra- and extracellular potassium ion (K) concentrations control many important cellular processes and related biological functions. However, our current understanding of the spatiotemporal patterns of physiological and pathological K changes is severely limited by the lack of practicable detection methods. We developed K-sensitive genetically encoded, Förster resonance energy transfer-(FRET) based probes, called GEPIIs, which enable quantitative real-time imaging of K dynamics. GEPIIs as purified biosensors are suitable to directly and precisely quantify K levels in different body fluids and cell growth media. GEPIIs expressed in cells enable time-lapse and real-time recordings of global and local intracellular K signals. Hitherto unknown Ca-triggered, organelle-specific K changes were detected in pancreatic beta cells. Recombinant GEPIIs also enabled visualization of extracellular K fluctuations in vivo with 2-photon microscopy. Therefore, GEPIIs are relevant for diverse K assays and open new avenues for live-cell K imaging.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5681659 | PMC |
| http://dx.doi.org/10.1038/s41467-017-01615-z | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The OsbZIP35-COR1-OsTCP19 module modulates cell proliferation to regulate grain length and weight in rice.
Sci Adv
September 2025
Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
Grain size substantially influences rice quality and yield. In this study, we identified (), a quantitative trait locus encoding an F-box protein that enhances grain length by promoting cell proliferation. The transcription factor OsbZIP35 represses expression, while COR1 interacts with OsTCP19, leading to its degradation.
View Article and Find Full Text PDFLoss of PTDSS1 in tumor cells improves immunogenicity and response to anti-PD-1 therapy.
Sci Adv
September 2025
Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
(phosphatidylserine synthase 1) encodes an enzyme that facilitates production of phosphatidylserine (PS), which mediates a global immunosuppressive signal. Here, based on in vivo CRISPR screen, we identified PTDSS1 as a target to improve anti-PD-1 therapy. Depletion of in tumor cells increased expression of interferon-γ (IFN-γ)-regulated genes, including , , , and , even in the absence of IFN-γ stimulation in vitro.
View Article and Find Full Text PDFGiant KASH proteins and ribosomes establish distinct cytoplasmic biophysical properties in vivo.
Sci Adv
September 2025
Department of Molecular and Cellular Biology, University of California, Davis, Davis, CA, USA.
Understanding how cells control their biophysical properties during development remains a fundamental challenge. While macromolecular crowding affects multiple cellular processes in single cells, its regulation in living animals remains poorly understood. Using genetically encoded multimeric nanoparticles for in vivo rheology, we found that tissues maintain mesoscale properties that differ from those observed across diverse systems, including bacteria, yeast species, and cultured mammalian cells.
View Article and Find Full Text PDFFunctional, immunogenetic, and structural convergence in influenza immunity between humans and macaques.
Sci Transl Med
September 2025
Vaccine Research Center (VRC), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
Human B cell immunity to the influenza hemagglutinin (HA) stem, a universal vaccine target, is often stereotyped and immunogenetically restricted, posing hurdles to study outside of humans. Here, we show that cynomolgus macaques vaccinated with an HA stem immunogen elicit humanlike public B cell lineages targeting two major conserved sites of vulnerability, the central stem and anchor epitopes. Central stem antibodies were predominantly derived from V1-138, the macaque homolog of human V1-69, a V gene preferentially used in human central stem broadly neutralizing antibodies (bnAbs).
View Article and Find Full Text PDFEfficiency of the cytochrome c oxidase subunit II gene for the delimitation of termite species (Blattodea: Isoptera) in the state of Paraíba, northeastern Brazil.
PLoS One
September 2025
Laboratório de Termitologia, Departamento de Sistemática e Ecologia, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil.
With the aim of expanding the possibilities of identifying termite species, in the present study we generated genetic data based on sequences of the mitochondrial gene encoding cytochrome c oxidase subunit II (COII) for termites (Blattodea: Isoptera) occurring in the state of Paraíba, northeastern Brazil. The genetic data were obtained from 135 COII sequences identified in 28 genera and 48 species. These are the first COII sequences for 15 taxa (31.
View Article and Find Full Text PDF