Related Experiment Video
Updated: Nov 7, 2025

Assessment of Resistance to Tyrosine Kinase Inhibitors by an Interrogation of Signal Transduction Pathways by Antibody Arrays
Published on: September 19, 2018
Study of Signal Transduction Pathways by Phospho-Protein Evaluation
Manuela Capone1, Alessio Mazzoni2, Laura Maggi2
1Department of Experimental and Clinical Medicine and DENOTHE Center, University of Florence, Firenze, Italy. manuela.capone@unifi.it.
This study details flow cytometry methods for analyzing T-cell signaling. These techniques help investigate immune defects caused by mutations in T-cell pathways, aiding basic and clinical research.
Area of Science:
- Immunology
- Cellular Signaling
Background:
- T-cell signaling pathways are crucial for immune function.
- Mutations in T-cell signaling molecules can cause severe immune disorders.
- Flow cytometry is a valuable tool for assessing T-cell activation.
Purpose of the Study:
- To present protocols for studying T-cell responses.
- To evaluate T-cell signaling using flow cytometry.
- To aid in the diagnosis and understanding of immune defects.
Main Methods:
- Utilizing flow cytometry to assess the phosphorylation status of signal transduction molecules.
- Developing protocols for analyzing T-cell responses to antigen-like stimuli.
- Developing protocols for analyzing T-cell responses to Interleukin-2 (IL-2).
Main Results:
- Established two distinct protocols for T-cell signaling analysis.
- Demonstrated the utility of flow cytometry in evaluating T-cell phosphorylation.
- Provided a framework for investigating T-cell defects.
Conclusions:
- Flow cytometry is effective for studying T-cell signal transduction.
- These protocols can be applied to both basic and clinical research.
- Understanding T-cell signaling is vital for addressing immune system defects.
Related Concept Videos
Amplifying Signals via Enzymatic Cascade
Amplifying Signals via Second Messengers
Protein Kinases and Phosphatases
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
Protein Kinases and Phosphatases
Interactions Between Signaling Pathways
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Phosphorylation
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...

