Structure-Activity Relationship Studies of Mitogen Activated Protein Kinase Interacting Kinase (MNK) 1 and 2 and BCR-ABL1 Inhibitors Targeting Chronic Myeloid Leukemic Cells.
Clinically used BCR-ABL1 inhibitors for the treatment of chronic myeloid leukemia do not eliminate leukemic stem cells (LSC). It has been shown that MNK1 and 2 inhibitors prevent phosphorylation of eIF4E and eliminate the self-renewal capacity of LSCs. Herein, we describe the identification of novel dual MNK1 and 2 and BCR-ABL1 inhibitors, starting from the known kinase inhibitor 2. Initial structure-activity relationship studies resulted in compound 27 with loss of BCR-ABL1 inhibition. Further modification led to orally bioavailable dual MNK1 and 2 and BCR-ABL1 inhibitors 53 and 54, which are efficacious in a mouse xenograft model and also reduce the level of phosphorylated eukaryotic translation initiation factor 4E in the tumor tissues. Kinase selectivity of these compounds is also presented.
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- Xenograft Model Antitumor Assays
- Structure-Activity Relationship
- Protein Serine-Threonine Kinases
- Protein Kinase Inhibitors
- Molecular Targeted Therapy
- Mice, SCID
- Medicinal & Biomolecular Chemistry
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive
- Intracellular Signaling Peptides and Proteins
- Humans
Citation
Published In
DOI
EISSN
Publication Date
Volume
Issue
Start / End Page
Location
Related Subject Headings
- Xenograft Model Antitumor Assays
- Structure-Activity Relationship
- Protein Serine-Threonine Kinases
- Protein Kinase Inhibitors
- Molecular Targeted Therapy
- Mice, SCID
- Medicinal & Biomolecular Chemistry
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive
- Intracellular Signaling Peptides and Proteins
- Humans