A comparative cell-based high throughput screening strategy for the discovery of selective tyrosine kinase inhibitors...

Area of Science:

• Oncology
• Pharmacology
• Molecular Biology

Background:

• Growth factor receptor tyrosine kinases (RTKs) are crucial in tumor progression, metastasis, and angiogenesis.
• RTKs represent promising therapeutic targets for various malignant diseases.

Purpose of the Study:

• To introduce a novel drug discovery strategy for identifying RTK inhibitors.
• To establish functional cellular assays for comparative screening of compound libraries.

Main Methods:

• Development of FDC-P1-based cell lines stably expressing HER2, HGF, VEGF, IGF-I, and EGF receptors.
• Utilizing these cell lines for comparative screening of compound libraries.
• Employing functional cellular assays for inhibitor identification.

Main Results:

• Identification of promising lead candidates with high selectivity and cell permeability.
• Demonstrated non-cytotoxic properties of the identified compounds.
• Achieved potencies in the low micromolar range for lead candidates.

Conclusions:

• The presented drug discovery strategy is effective for identifying potent and selective RTK inhibitors.
• The established cell lines are valuable tools for compound optimization and preclinical studies.
• This approach facilitates the development of novel therapeutics for RTK-driven cancers.