Related Experiment Video
Updated: Dec 25, 2025

A Semi-Quantitative Drug Affinity Responsive Target Stability DARTS assay for studying Rapamycin/mTOR interaction
Published on: August 27, 2019
Characterizing Drug-Target Interactions: Shifting towards the Clinic
1Novartis Institutes for BioMedical Research, Inc., 181 Massachusetts Avenue, Cambridge, MA 02139, USA.
Thermal proteome profiling (TPP) now analyzes complex tissues and blood for drug discovery. This unbiased proteomics method identifies organ-specific drug targets in late-stage research and clinical settings.
Area of Science:
- Biochemistry
- Proteomics
- Pharmacology
Background:
- Thermal proteome profiling (TPP) is a cellular thermal shift assay.
- TPP offers an unbiased proteomics readout.
- Previous applications were limited, not extending to complex tissues.
Purpose of the Study:
- To demonstrate the application of TPP in complex tissue samples.
- To showcase TPP's utility in organ-specific drug target engagement studies.
- To validate TPP for late-stage drug discovery and clinical settings.
Main Methods:
- Application of TPP to complex tissue samples from model organisms.
- Utilizing TPP with patient-derived whole blood.
- Employing unbiased proteomics for readout.
Main Results:
- Successful application of TPP to complex tissues and whole blood.
- Demonstration of organ-specific drug target engagement studies.
- Identification of drug targets in late-stage drug discovery.
Conclusions:
- TPP is effective for analyzing complex biological samples.
- TPP facilitates organ-specific drug target identification and engagement.
- TPP is a valuable tool for late-stage drug discovery and clinical research.
Related Concept Videos
Targets for Drug Action: Overview
Receptors are either membrane-spanning or intracellular proteins, which upon binding a ligand, get activated and transmit the signal downstream to elicit a response. Drugs bind receptors, either mimicking the action of endogenous ligands or blocking the receptor activity to bring about a modified response. Nearly 35% of approved drugs target the G...
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....
Pharmacokinetics: Drug–Drug Interactions
Principles of Drug Action
Drugs can be agonists or antagonists. Like the endogenous ligands, agonists always bind and activate the target to produce a cellular response. Agonist binding induces a conformational change which in turn...
Factors Affecting Protein-Drug Binding: Drug Interactions
Displacement interactions can have varying outcomes, ranging from toxicity to virtually...
Combined Effects of Drugs: Antagonism
The most common type is receptor antagonism, where one drug acts as an antagonist to block the effects of another drug by...

