Cell-Based Assay
Cell-Based Assay — An experimental method using living cells to measure the biological activity of a compound, providing more physiologically relevant data than cell-free assays.
What Is a Cell-Based Assay?
A cell-based assay measures peptide effects in living cells rather than in isolated biochemical systems. Cell-based assays capture the integrated cellular response including receptor signaling, downstream pathways, and functional endpoints, providing more physiologically relevant data than binding assays alone.
Common Cell-Based Assays for Peptides
- cAMP: HTRF, AlphaScreen, or GloSensor for Gs/Gi-coupled GPCR agonists/antagonists
- Calcium flux: FLIPR for Gq-coupled receptors
- Reporter gene: Luciferase/GFP under pathway-specific promoters
- Functional: Viability, proliferation, migration, cytokine secretion
Frequently Asked Questions
What is Cell-Based Assay?
An experimental method using living cells to measure the biological activity of a compound, providing more physiologically relevant data than cell-free assays.
Why is Cell-Based Assay important in peptide research?
Cell-Based Assay is a fundamental concept in analytical as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.
Authority Sources
- Cell-Based Assay on Wikipedia
- Search Cell-Based Assay on PubChem (NIH)
- Research articles on ScienceDirect