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Updated: Jul 15, 2025

Assessment of Resistance to Tyrosine Kinase Inhibitors by an Interrogation of Signal Transduction Pathways by Antibody Arrays

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Published on: September 19, 2018

Tyrosine Kinase Inhibitor Profiling Using Multiple Forskolin-Responsive Reporter Cells.

Yamato Kasahara¹, Sakura Tamamura², Gen Hiyama³

¹Department of Life Science and Medical Bioscience, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan.

International Journal of Molecular Sciences

|September 28, 2023

Summary

A novel transposon-based reporter system efficiently generates cells that reveal unique drug response profiles. This tool aids in evaluating anticancer agents like tyrosine kinase inhibitors by predicting efficacy and identifying drug similarities.

Keywords:

dasatinib forskolin panel analysis reporter cell trap vector tyrosine kinase inhibitor

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Area of Science:

Molecular Biology
Pharmacology
Cancer Research

Background:

Developing sensitive reporter cell systems is crucial for drug discovery.
Forskolin-inducible reporter cells can identify novel compound activities.
Tyrosine kinase inhibitors (TKIs) are vital anticancer agents.

Purpose of the Study:

To establish a highly sensitive promoter trap vector system using transposons for reporter cell generation.
To investigate the response patterns of novel compounds, including TKIs, in forskolin-responsive reporter cells.
To assess the utility of this system for anticancer agent evaluation, similarity assessment, and efficacy prediction.

Main Methods:

Development of a transposon-based promoter trap vector for high-efficiency reporter cell generation.
Isolation and characterization of forskolin-responsive reporter cell clones from K562 cells.
Quantitative luciferase assays to evaluate compound responses across multiple reporter clones.
Profiling of tyrosine kinase inhibitors (TKIs) using a focused set of reporter clones.

Main Results:

The reporter system efficiently generated forskolin-responsive cell clones with unique transposon integration sites.
Unexpected responses were observed with compounds like dasatinib and cerdulatinib, unrelated to the forskolin pathway.
Each reporter clone exhibited distinct response patterns to various compounds, enabling unique compound profiling.
TKIs, including bcr-abl inhibitors, demonstrated specific profiling patterns, with some showing homologous profiles (e.g., dasatinib/bosutinib, imatinib/bafetinib).

Conclusions:

The developed reporter system provides a sensitive and efficient method for generating diverse reporter cells.
This system allows for unique compound profiling and can reveal off-target or unexpected drug activities.
The reporter system shows promise for similarity evaluation and efficacy prediction in the development of new anticancer agents.