Imaging of Lipid Uptake in Seedlings Utilizing Fluorescent Lipids and Confocal Microscopy.

Bio Protoc

Department of Plant and Environmental Sciences, Copenhagen Plant Science Center, University of Copenhagen, Frederiksberg C, Denmark.

Published: November 2021

Eukaryotic cells use a diverse set of transporters to control the movement of lipids across their plasma membrane, which drastically affects membrane properties. Various tools and techniques to analyze the activity of these transporters have been developed. Among them, assays based on fluorescent phospholipid probes are particularly suitable, allowing for imaging and quantification of lipid internalization in living cells. Classically, these assays have been applied to yeast and animal cells. Here, we describe the adaptation of this powerful approach to characterize lipid internalization in plant roots and aerial tissues using confocal imaging. Graphic abstract: Scale bars: seedling, 25 mm; leaf, 10 μm; root, 25 μm.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8635845PMC
http://dx.doi.org/10.21769/BioProtoc.4228DOI Listing

Publication Analysis

Top Keywords

lipid internalization
8
imaging lipid
4
lipid uptake
4
uptake seedlings
4
seedlings utilizing
4
utilizing fluorescent
4
fluorescent lipids
4
lipids confocal
4
confocal microscopy
4
microscopy eukaryotic
4

Similar Publications

Research Progress of Phospholipid Vesicles in Biological Field.

Biomolecules

December 2024

CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.

Due to their high biocompatibility, biodegradability, and facile surface functionalization, phospholipid vesicles as carriers have garnered significant attention in the realm of disease diagnosis and treatment. On the one hand, phospholipid vesicles can function as probes for the detection of various diseases by encapsulating nanoparticles, thereby enabling the precise localization of pathological changes and the monitoring of disease progression. On the other hand, phospholipid vesicles possess the capability to selectively target and deliver therapeutic agents, including drug molecules, genes and immune modulators, to affected sites, thereby enhancing the sustained release of these agents and improving therapeutic efficacy.

View Article and Find Full Text PDF

Synthesis of BODIPYs using organoindium reagents and survey of their cytotoxicity and cell uptake on nervous system cells.

Bioorg Chem

December 2024

Universidade da Coruña, CICA - Centro Interdisciplinar de Química e Bioloxía and Departamento de Química, Facultad de Ciencias, Campus A Zapateira, 15071 A Coruña, Spain. Electronic address:

In this study, a series of BODIPY dyes were synthesized, containing various substituents at meso position. Further functionalization of the BODIPY framework at C2 and C2-C6 position(s) by palladium-catalysed cross-coupling reactions using organoindium reagents (RIn) was efficiently assessed, starting from C2(6)-halogenated BODIPYs, and their optical properties were measured. The cytotoxicity of BODIPY dyes on SH-SY5Y neuronal cells by MTT assay showed that those compounds bearing thien-2-yl and benzonitrile moieties at meso position, exhibited great efficiency in maintaining cell viability under all tested conditions (up to 50 µM for 24 h and 48 h).

View Article and Find Full Text PDF

A FET-based flexible biosensor system for dynamic behavior observation of lipid membrane with nanoparticles .

Lab Chip

January 2025

State Key Laboratory of Precision Measuring Technology and Instruments, School of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China.

Nanoparticles have become widely used materials in various fields, yet their mechanism of action at the cellular level after entering the human body remains unclear. Accurately observing the effect of nanosize dimensions on particle internalization and toxicity in cells is crucial, particularly under the conditions of biological activity. With the aim of helping to study the interactions between nanoparticles of varying sizes and active cell membranes, we propose a flexible biosensor system based on a field effect transistor (FET).

View Article and Find Full Text PDF

Probing SARS-CoV-2 membrane binding peptide via single-molecule AFM-based force spectroscopy.

Nat Commun

January 2025

Louvain Institute of Biomolecular Science and Technology, Université catholique de Louvain, Croix du sud 4-5, L7.07.07, Louvain-la-Neuve, Belgium.

The SARS-CoV-2 spike protein's membrane-binding domain bridges the viral and host cell membrane, a critical step in triggering membrane fusion. Here, we investigate how the SARS-CoV-2 spike protein interacts with host cell membranes, focusing on a membrane-binding peptide (MBP) located near the TMPRSS2 cleavage site. Through in vitro and computational studies, we examine both primed (TMPRSS2-cleaved) and unprimed versions of the MBP, as well as the influence of its conserved disulfide bridge on membrane binding.

View Article and Find Full Text PDF

Triple-negative breast cancer (TNBC) is a subtype known for its aggressive nature, high rates of recurrence, and treatment resistance, largely attributed to the presence of breast cancer stem cells (BCSCs). Traditional therapies often struggle to eliminate BCSCs, which contributes to tumor recurrence. One promising strategy for addressing this challenge is targeting the Notch signaling pathway, which plays a critical role in the self-renewal and maintenance of BCSCs.

View Article and Find Full Text PDF

Want 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!