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An Ex vivo Mast Cell Degranulation Assay using Crude Peritoneal Exudate Cells and Natural Antigen Stimulation

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A Combination of Screening and Computational Approaches for the Identification of Novel Compounds That Decrease Mast

Marisa P McShane¹, Tim Friedrichson², Angelika Giner¹

¹Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany.

Journal of Biomolecular Screening

|April 4, 2015

Summary

This summary is machine-generated.

This study integrates chemical and functional genomics screens to uncover drug mechanisms. By correlating compound endocytosis profiles with gene silencing data, researchers identified and validated Akt pathway inhibition by specific compounds.

Keywords:

Akt mast cell phosphorylation screening

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Screening Peptides that Activate MRGPRX2 using Engineered HEK Cells

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Published on: November 6, 2021

Area of Science:

Drug discovery and development
Chemical biology
Functional genomics

Background:

High-content screening aids drug discovery but understanding compound mechanisms remains challenging.
Integrating diverse biological screens can provide deeper insights into compound activity.

Purpose of the Study:

To develop and validate an approach for elucidating compound mechanisms of action.
To identify bioactive pathways modulated by a small-molecule library using integrated screening.

Main Methods:

Screened an amphiphilic compound library in RBL-2H3 cell degranulation and HeLa cell endocytosis assays.
Utilized high-content imaging for multiparametric phenotypic profiling in endocytosis.
Correlated compound endocytic profiles with genome-wide siRNA phenotypic data.
Bioinformatic and computational analyses integrated chemical and functional genomics data.

Main Results:

Identified candidate pathways inhibited by compounds through correlation analysis.
Focused on and validated inhibition of the Akt pathway by selected compounds.
Demonstrated that compounds inhibit Akt-PH domain translocation to the plasma membrane.

Conclusions:

The integrated screening approach effectively identifies compound mechanisms of action.
This strategy facilitates the investigation of chemical and functional genomics interactions.
The Akt pathway is a validated target for the tested amphiphilic compounds.