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Using Imidazo[2,1-b][1,3,4]thiadiazol Skeleton to Design and Synthesize Novel MNK Inhibitors.

ABSTRACT: Mitogen-activated protein kinase-interacting protein kinases (MNKs) phosphorylate eukaryotic initiation factor 4E (eIF4E) and regulate the processes of cell proliferation, cell cycle, and migration and invasion of cancer cells. Selectively inhibiting the activity of MNKs could be effective in treating cancers. In this study, we report a series of novel MNK inhibitors with an imidazo[2,1-b][1,3,4]thiadiazol scaffold, from which, compound 18 inhibited the phosphorylation of eIF4E in various cancer cell lines potently. Compound 18 was more potent against MNK2 than MNK1, and decreased the levels of cyclin-B1, cyclin-D3, and MMP-3 in A549 and MDA-MB-231 cells, impaired cell growth and colony formation, arrested the cell cycle in the G0/G1 phase, and inhibited cell migration and the secretion of TNF-α, MCP-1, and IL-8 from A549 cells. It represents a starting compound to design further inhibitors that selectively target MNKs and apply in other diseases.

SUBMITTER: Jin X 

PROVIDER: S-EPMC9841594 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature

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Using Imidazo[2,1-<i>b</i>][1,3,4]thiadiazol Skeleton to Design and Synthesize Novel MNK Inhibitors.

Jin Xin X   Qiu Tingting T   Xie Jianling J   Wei Xianfeng X   Wang Xuemin X   Yu Rilei R   Proud Christopher C   Jiang Tao T  

ACS medicinal chemistry letters 20221215 1

Mitogen-activated protein kinase-interacting protein kinases (MNKs) phosphorylate eukaryotic initiation factor 4E (eIF4E) and regulate the processes of cell proliferation, cell cycle, and migration and invasion of cancer cells. Selectively inhibiting the activity of MNKs could be effective in treating cancers. In this study, we report a series of novel MNK inhibitors with an imidazo[2,1-<i>b</i>][1,3,4]thiadiazol scaffold, from which, compound <b>18</b> inhibited the phosphorylation of eIF4E in  ...[more]

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