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The Role of the p21-Activated Kinase Family in Tumor Immunity
Tianqi Lu1,2, Zijun Huo3, Yiran Zhang3
1Key Laboratory of Cell Biology, National Health Commission of the PRC and Key Laboratory of Medical Cell Biology, Ministry of Education of the People's Republic of China, Department of Cell Biology, China Medical University, Shenyang 110122, China.
Abstract:
The p21-activated kinases (PAKs) are a group of evolutionarily conserved serine/threonine protein kinases and serve as a downstream target of the small GTPases Rac and Cdc42, both of which belong to the Rho family. PAKs play pivotal roles in various physiological processes, including cytoskeletal rearrangement and cellular signal transduction. Group II PAKs (PAK4-6) are particularly closely linked to human tumors, such as breast and pancreatic cancers, while Group I PAKs (PAK1-3) are indispensable for normal physiological functions such as cardiovascular development and neurogenesis. In recent years, the association of PAKs with diseases like cancer and the rise of small-molecule inhibitors targeting PAKs have attracted significant attention. This article focuses on the analysis of PAKs' role in tumor progression and immune infiltration, as well as the current small-molecule inhibitors of PAKs and their mechanisms.
Insights
p21-activated kinases (PAKs) are crucial for cell functions and linked to cancers. This review covers PAKs
Area of Science:
- Molecular Biology
- Cell Biology
- Biochemistry
Background:
- p21-activated kinases (PAKs) are serine/threonine protein kinases downstream of Rho GTPases Rac and Cdc42.
- PAKs regulate fundamental cellular processes, including cytoskeletal dynamics and signal transduction.
- Group I PAKs (PAK1-3) are vital for normal development, while Group II PAKs (PAK4-6) are implicated in human cancers.
Purpose of the Study:
- To analyze the role of PAKs in tumor progression and immune infiltration.
- To review current small-molecule inhibitors targeting PAKs and their mechanisms of action.
Main Methods:
- Literature review focusing on PAKs in cancer biology and therapeutics.
- Analysis of published data on PAK inhibitor efficacy and mechanisms.
Main Results:
- PAKs are implicated in promoting tumor growth and influencing the tumor immune microenvironment.
- Various small-molecule inhibitors targeting PAKs are under investigation for cancer therapy.
Conclusions:
- PAKs represent promising therapeutic targets for cancer treatment.
- Understanding PAK function and inhibition is crucial for developing novel anti-cancer strategies.
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