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Updated: Sep 12, 2025

Kinase Inhibitor Screening In Self-assembled Human Protein Microarrays
Published on: October 23, 2019
NUAK kinases: Signaling mechanisms and therapeutic applications
Nicole M Cullen1, Peter Rosston2, Bakhtawar Tufail1
1Department of Medicine, Section of Hematology and Oncology, Tulane University School of Medicine, New Orleans, Louisiana, USA.
Abstract:
The novel (nua) kinases 1 and 2 are two of 12 AMP-activated protein-related kinases whose signaling pathways are involved in cancer progression, as well as neurologic, fibrotic, and inflammatory diseases. Currently, there are 80 Food and Drug Administration-approved kinase inhibitors which target roughly 24 of the 500+ known human kinases, leaving most kinases underexplored, including NUAK1 and NUAK2. Thus, there is a critical need for selective inhibition of NUAK1 and NUAK2 signaling. Here, we review the protein structure, known upstream regulators and downstream targets, and expression profiles of NUAK1 and NUAK2 in cancerous compared to noncancerous tissue. We also delineate the biological roles and signaling pathways of the NUAK kinases in a range of malignancies, focusing on cancer but also covering noncancerous physiology, and the therapeutic potential of NUAK kinase inhibition. We summarize the known small-molecule NUAK kinase inhibitors in preclinical models and one inhibitor in clinical trials. This review highlights the signaling mechanisms and therapeutic value of targeting NUAK kinase signaling pathways with specific, small-molecule NUAK inhibitors.
Insights
Novel kinases NUAK1 and NUAK2 are crucial in diseases but lack targeted drugs. This review explores their roles and the therapeutic potential of developing specific inhibitors for NUAK1 and NUAK2 signaling pathways.
Area of Science:
- Biochemistry and Molecular Biology
- Oncology
- Pharmacology
Background:
- Novel (NUAK) kinases 1 and 2 are AMP-activated protein-related kinases implicated in cancer and other diseases.
- Most human kinases, including NUAK1 and NUAK2, remain underexplored with limited targeted therapies.
- There is a significant need for selective inhibitors of NUAK1 and NUAK2 signaling.
Purpose of the Study:
- To review the structure, regulation, and biological roles of NUAK1 and NUAK2.
- To explore the expression profiles of NUAK1 and NUAK2 in cancerous versus non-cancerous tissues.
- To assess the therapeutic potential of targeting NUAK kinase signaling pathways.
Main Methods:
- Literature review of protein structure, upstream regulators, and downstream targets.
- Analysis of NUAK1 and NUAK2 expression in various malignancies and non-cancerous conditions.
- Summary of existing small molecule inhibitors for NUAK kinases in preclinical and clinical studies.
Main Results:
- NUAK1 and NUAK2 play roles in cancer progression and other diseases.
- Expression profiles differ between cancerous and non-cancerous tissues.
- Several small molecule inhibitors targeting NUAK kinases have shown promise in preclinical models, with one in clinical trials.
Conclusions:
- Targeting NUAK kinase signaling pathways offers therapeutic potential for various diseases, particularly cancer.
- Selective small molecule inhibitors are key to exploiting this therapeutic value.
- Further research into NUAK1 and NUAK2 is warranted to develop effective treatments.
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