Related Experiment Video
Updated: Jun 5, 2026

BRET-based G Protein Biosensors for Measuring G Protein-Coupled Receptor Activity in Live Cells
Published on: November 7, 2025
Dependence receptors: from basic research to drug development
Patrick Mehlen1, Dale E Bredesen
1Apoptose, Cancer et Développement, CNRS UMR5538, Centre Léon Bérard, University of Lyon, Lyon 69008, France. dbredesen@buckinstitute
Abstract:
The fourth meeting on dependence receptors featured descriptions of previously unknown dependence receptors. New mechanistic data were presented on the switch between the trophic, antiapoptotic response with the proapoptotic response that occurs with loss of trophic support. The possibility that the loss of trophic support may also involve the binding of an active antitrophin was also discussed. New in vivo data were presented on the roles of dependence receptors in development, angiogenesis, oncogenesis, and neurodegeneration, as well as new therapeutic approaches based on dependence receptor function. The next meeting on dependence receptors is scheduled for 2012.
Insights
New dependence receptors were identified, clarifying the switch between cell survival and death signaling. Research also explored dependence receptor roles in development, disease, and potential new therapies.
Area of Science:
- Molecular biology
- Cell signaling
- Neuroscience
Background:
- Dependence receptors mediate cellular responses to trophic support, influencing cell survival and death.
- The transition from trophic to apoptotic signaling is crucial in various physiological and pathological processes.
- Understanding dependence receptor function is key to developing novel therapeutic strategies.
Purpose of the Study:
- To present newly identified dependence receptors and their functions.
- To elucidate the mechanisms underlying the switch between trophic and apoptotic signaling.
- To discuss the in vivo roles of dependence receptors in development, disease, and potential therapeutic applications.
Main Methods:
- Identification and characterization of novel dependence receptors.
- Mechanistic studies on signal transduction pathways.
- In vivo studies in models of development, angiogenesis, oncogenesis, and neurodegeneration.
- Evaluation of therapeutic strategies targeting dependence receptors.
Main Results:
- Discovery of previously unknown dependence receptors.
- Detailed mechanistic insights into the switch between anti-apoptotic and pro-apoptotic signaling upon loss of trophic support.
- Evidence for the involvement of antitrophins in the loss of trophic support.
- In vivo data highlighting the roles of dependence receptors in development, angiogenesis, oncogenesis, and neurodegeneration.
- Presentation of novel therapeutic approaches.
Conclusions:
- Dependence receptors represent a critical signaling network with diverse roles.
- The balance of dependence receptor signaling is vital for normal development and disease prevention.
- Targeting dependence receptors offers promising therapeutic avenues for various conditions.
More Related Videos
07:16Methods for the Discovery of Novel Compounds Modulating a Gamma-Aminobutyric Acid Receptor Type A Neurotransmission
Published on: August 16, 2018
07:41A Kinetic Fluorescence-based Ca2+ Mobilization Assay to Identify G Protein-coupled Receptor Agonists, Antagonists, and Allosteric Modulators
Published on: February 20, 2018
Related Concept Videos
G Protein-coupled Receptors
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
G Protein-coupled Receptors
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
Transducer Mechanism: Enzyme-Linked Receptors
Major types that are helpful drug targets include:
Drug-Receptor Interaction: Agonist
Agonists can bind to receptors in different ways. Some agonists bind directly to the receptor's active site, mimicking the endogenous ligand's action.
Drug-Receptor Interactions
Several parameters, such as the drug's affinity for its receptor and its efficacy, which is its ability to activate the receptor, determine the drug's effect on the tissue.
The Two-State Receptor Model
The binding affinity of a drug determines its interaction with one...