Results 41 to 50 of about 9,845 (208)

Investigating Origins of FLIm Contrast in Atherosclerotic Lesions Using Combined FLIm-Raman Spectroscopy

Frontiers in Cardiovascular Medicine, 2020
Background: Fluorescence lifetime imaging (FLIm) is a spectroscopic imaging technique able to characterize the composition of luminal surface of arterial vessels.
Julien Bec, Julien Bec, Julien Bec, Tanveer Ahmed Shaik, Christoph Krafft, Thomas W. Bocklitz, Thomas W. Bocklitz, Alba Alfonso-Garcia, Kenneth B. Margulies, Jürgen Popp, Jürgen Popp, Laura Marcu   +11 more
doaj   +1 more source

Hydration‐Gated Photoinduced Electron Transfer in BODIPY Dyes

Angewandte Chemie, EarlyView.
Hydration switches photoinduced electron transfer (PET) ON in alkoxy‐coordinated BODIPY dyes via specific hydrogen bonding. This gating yields a fluorescence lifetime span of ∼6 ns, enabling fluorescence lifetime imaging microscopy (FLIM) contrast in live cells and organoids. ABSTRACT Fluorescent probes based on photoinduced electron transfer (PET) are
Venkata N. K. Mamillapalli, Irina A. Okkelman, Fatima Akhssas, Greta Sambucari, Angela C. Debruyne, Dinesh Beniwal, Christophe Bucher, Mariangela Di Donato, Ruslan I. Dmitriev, Mikhail A. Filatov   +9 more
wiley   +2 more sources

A fluorescence lifetime-based FLIM-timer for measuring the protein turnover of transcription factor Nrf2 in live cells

Scientific Reports
Measuring protein turnover in cells has been greatly assisted by fluorescent timers (FT). However, FT quantification requires relatively high fluorescence intensity samples, prohibiting their use for proteins with low or non-uniform expression like ...
Dina Dikovskaya, Claudia Bento-Pereira, Kanade Shiga, Andrea Corno, Maureen Higgins, Rachel Toth, Adrian T. Saurin, Albena T. Dinkova-Kostova   +7 more
doaj   +1 more source

An Extracellular Pore‑Targeting Peptide Defines a Designable Allosteric Site in TRPV2

Advanced Science, EarlyView.
Structure‐guided peptide engineering yields Depiv2, a highly potent and subtype‐selective TRPV2 inhibitor that binds to the extracellular pore and remodels it into a closed, non‐conductive state. Depiv2 suppresses pathological cardiac hypertrophy, establishing the TRPV2 outer pore as a designable interface for selective peptide modulation.
Aiqin Zhu, Hongkun Wang, Jiawei Wang, Xiaolu Liu, Aerziguli Aierken, Lizhen Xu, Ping Liang, Fan Yang   +7 more
wiley   +1 more source

The Nature of Cell‐Penetrating Poly(disulfide)s

Angewandte Chemie, EarlyView.
The mode of action of cell‐penetrating poly(disulfide)s (CPDs) is elucidated to understand thiol‐mediated uptake (TMU) in general and guide future efforts to control cellular entry for chemicals delivery and pathogen defense. ABSTRACT Cell‐penetrating poly(disulfide)s (CPDs) are the most popular thiol‐mediated uptake (TMU) tools for delivering attached
Saidbakhrom Saidjalolov, Giacomo Renno, Yuheng Zhang, Michael Cognet, Justin Neuman, Andreas Hennig, Naomi Sakai, Stefan Matile   +7 more
wiley   +2 more sources

Fluorescence lifetime imaging microscopy and its applications in skin cancer diagnosis [PDF]

Journal of Innovative Optical Health Sciences, 2019
Fluorescence lifetime (FLT) of fluorophores is sensitive to the changes in their surrounding microenvironment, and hence it can quantitatively reveal the physiological characterization of the tissue under investigation.
Lixin Liu, Qianqian Yang, Meiling Zhang, Zhaoqing Wu, Ping Xue   +4 more
doaj   +1 more source

Platycodon grandiflorus–Derived Nanovesicles Sensitize Gastric Cancer to T Cell Killing via Ferroptosis‐Driven Membrane Mechanical Remodeling

Advanced Science, EarlyView.
Plant‐derived nanovesicles from Platycodon grandiflorus act as bioactive lipid delivery platforms that transport γ‐linolenic acid into gastric cancer cells. This lipid cargo promotes ferroptotic lipid peroxidation, remodels membrane mechanics, and increases tumor‐cell susceptibility to cytotoxic T‐cell attack.
Jian Wu, Ruijuan Zhang, Yixin Duan, Shuqi Huo, Xiang Zhang, Yibin Xing, Lingjing Ma, Tiran Jiang, Xingyu Chen, Qingmin Sun   +9 more
wiley   +1 more source

Fast volumetric fluorescence lifetime imaging of multicellular systems using single-objective light-sheet microscopy

Communications Biology
Fluorescence lifetime imaging (FLIM) is widely used for functional and multiplexed bioimaging. The lifetime of autofluorescence or fluorescent sensors encodes physiologically relevant parameters. Thus, FLIM is especially relevant for the investigation of
Valentin Dunsing-Eichenauer, Johan Hummert, Claire Chardès, Thomas Schönau, Léo Guignard, Rémi Galland, Gianluca Grenci, Max Tillmann, Felix Koberling, Corinna Nock, Jean-Baptiste Sibarita, Virgile Viasnoff, Ivan Michel Antolovic, Rainer Erdmann, Pierre-François Lenne   +14 more
doaj   +1 more source

Dynamic FRET-FLIM based screening of signal transduction pathways

Scientific Reports, 2021
Fluorescence Lifetime Imaging (FLIM) is an intrinsically quantitative method to screen for protein–protein interactions and is frequently used to record the outcome of signal transduction events.
Rolf Harkes, Olga Kukk, Sravasti Mukherjee, Jeffrey Klarenbeek, Bram van den Broek, Kees Jalink   +5 more
doaj   +1 more source

Tracking CDK1 Dynamics With a Novel Biosensor Mouse and Clinical Cohorts to Predict CDK4/6 Inhibitor Sensitivity in ER+ Breast Cancer

Advanced Science, EarlyView.
Cyclin‐dependent kinase (CDK) 1 activity is a dynamic marker of treatment response in estrogen receptor positive breast cancer. Patient cohorts reveal CDK1 activity increases during progression to invasive disease, where high expression correlates with poor survival. Using a novel Cdk1 biosensor mouse alongside in vitro models, we demonstrate that CDK1
Sarah Alexandrou, Kristine J. Fernandez, Min Li Huang, Ewan K. A. Millar, Claire Vennin, Leila Eshraghi, Tan Dat Timothy Lam, Victoria Lee, Nyah C. Brooks, Janett Stoehr, Cristian Guaman Mendez, Douglas Strathdee, David Stevenson, David Herrmann, Sandra O'Toole, Paul Timpson, Max Nobis, C. Elizabeth Caldon   +17 more
wiley   +1 more source