Title:Screening and Activity Evaluation of Novel BCR-ABL/T315I Tyrosine
Kinase Inhibitors
Volume: 31
Issue: 20
Author(s): Jie Su, Chenggong Fu, Shuo Wang, Xuelian Chen, Runan Wang, Huaihuai Shi, Jiazhong Li*Xin Wang*
Affiliation:
- School of Pharmacy, Lanzhou University, 199 West Donggang Rd., 730000, Lanzhou, China
- School of Pharmacy, Lanzhou University, 199 West Donggang Rd., 730000, Lanzhou, China
Keywords:
Chronic myeloid leukemia, BCR-ABL, tyrosine kinase, T315I, inhibitor, virtual screening, compound.
Abstract:
Introduction: Chronic myeloid leukemia (CML) is a kind of malignant tumor
formed by the clonal proliferation of bone marrow hematopoietic stem cells. BCR-ABL
fusion protein, found in more than 90% of patients, is a vital target for discovering anti-
CML drugs. Up to date, imatinib is the first BCR-ABL tyrosine kinase inhibitor (TKI) approved
by the FDA for treating CML. However, the drug resistance problems appeared
for many reasons, especially the T135I mutation, a "gatekeeper" of BCR-ABL. Currently,
there is no long-term effective and low side effect drug in clinical.
Methods: This study intends to find novel TKIs targeting BCR-ABL with high inhibitory
activity against T315I mutant protein by combining artificial intelligence technology and
cell growth curve, cytotoxicity, flow cytometry and Western blot experiments.
Results: The obtained compound was found to kill leukemia cells, which had good inhibitory
efficacy in BaF3/T315I cells. Compound no 4 could induce cell cycle arrest, cause
autophagy and apoptosis, and inhibit the phosphorylation of BCR-ABL tyrosine kinase,
STAT5 and Crkl proteins.
Conclusion: The results indicated that the screened compound could be used as a lead compound
for further research to discover ideal chronic myeloid leukemia therapeutic drugs.