Cited by 522Advanced Biosensing Techniques and ApplicationsAdvanced Fluorescence Microscopy TechniquesReceptor Mechanisms and Signaling

HTRF: A Technology Tailored for Drug Discovery - A Review of Theoretical Aspects and Recent Applications

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Degorce, Francois·2009·Current Chemical Genomics

Abstract

HTRF (Homogeneous Time Resolved Fluorescence) is the most frequently used generic assay technology to measure analytes in a homogenous format, which is the ideal platform used for drug target studies in high-throughput screening (HTS). This technology combines fluorescence resonance energy transfer technology (FRET) with time-resolved measurement (TR). In TR-FRET assays, a signal is generated through fluorescent resonance energy transfer between a donor and an acceptor molecule when in close proximity to each other. Buffer and media interference is dramatically reduced by dual-wavelength detection, and the final signal is proportional to the extent of product formation. The HTRF assay is usually sensitive and robust that can be miniaturized into the 384 and 1536-well plate formats. This assay technology has been applied to many antibody-based assays including GPCR signaling (cAMP and IP-One), kinases, cytokines and biomarkers, bioprocess (antibody and protein production), as well as the assays for protein-protein, proteinpeptide, and protein-DNA/RNA interactions.Since its introduction to the drug-screening world over ten years ago, researchers have used HTRF to expedite the study of GPCRs, kinases, new biomarkers, protein-protein interactions, and other targets of interest. HTRF has also been utilized as an alternative method for bioprocess monitoring. The first-generation HTRF technology, which uses Europium cryptate as a fluorescence donor to monitor reactions between biomolecules, was extended in 2008 through the introduction of a second-generation donor, Terbium cryptate (Tb), enhancing screening performance. Terbium cryptate possesses different photophysical properties compared to Europium, including increased quantum yield and a higher molar extinction coefficient. In addition to being compatible with the same acceptor fluorophors used with Europium, it can serve as a donor fluorophore to green-emitting fluors because it has multiple emission peaks including one at 490 nm. Moreover, all Terbium HTRF assays can be read on the same HTRF-compatible instruments as Europium HTRF assays.Overall, HTRF is a highly sensitive, robust technology for the detection of molecular interactions in vitro and is widely used for primary and secondary screening phases of drug development. This review addresses the general principles of HTRF and its current applications in drug discovery.

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  1. [23]Amoravain M Lyotard S Jaga D Lebreton ML Servent F Bomer U Introduction of a new HTRF acceptor, d2: Development of a complete GPCR platform for a Gs, Gi and Gq screening SBS 2005 11th Annual Conference Geneva

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Authors
Degorce, F.
Venue
Current Chemical Genomics
Published
2009-03-17
Volume
3
Issue
1
Pages
22-32
ISSN
1875-3973 (ISSN-L)
OpenAlex
W2073113196
Cited by
501
References
74
Citations by year
2026: 29 · 2025: 31 · 2024: 35 · 2023: 37 · 2022: 31 · 2021: 53 · 2020: 35 · 2019: 29 · 2018: 34 · 2017: 28 · 2016: 23 · 2015: 25 · 2014: 39 · 2013: 28 · 2012: 26
FWCI
5.90
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Current Chemical Genomics (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Advanced Biosensing Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Advanced Fluorescence Microscopy Techniques
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
homogeneous time-resolved fluorescence, time-resolved fluorescence resonance energy transfer, drug discovery, high-throughput screening, fluorescence resonance energy transfer, europium cryptate, G protein-coupled receptor signaling, kinase activity assay, protein-protein interaction, bioprocess monitoring, antibody-based assays, biomarkers

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