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Published on: July 17, 2020
Group II p21-activated kinases as therapeutic targets in gastrointestinal cancer
Yang-Guang Shao1, Ke Ning1, Feng Li1
1Yang-Guang Shao, Ke Ning, Feng Li, Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang 110122, Liaoning Province, China.
Abstract:
P21-activated kinases (PAKs) are central players in various oncogenic signaling pathways. The six PAK family members are classified into group I (PAK1-3) and group II (PAK4-6). Focus is currently shifting from group I PAKs to group II PAKs. Group II PAKs play important roles in many fundamental cellular processes, some of which have particular significance in the development and progression of cancer. Because of their important functions, group II PAKs have become popular potential drug target candidates. However, few group II PAKs inhibitors have been reported, and most do not exhibit satisfactory kinase selectivity and "drug-like" properties. Isoform- and kinase-selective PAK inhibitors remain to be developed. This review describes the biological activities of group II PAKs, the importance of group II PAKs in the development and progression of gastrointestinal cancer, and small-molecule inhibitors of group II PAKs for the treatment of cancer.
Insights
Group II p21-activated kinases (PAKs) are crucial in cancer development. Developing selective inhibitors for these kinases is essential for effective cancer treatment, particularly for gastrointestinal cancers.
Area of Science:
- Molecular Biology
- Oncology
- Drug Discovery
Background:
- P21-activated kinases (PAKs) are key regulators in oncogenic signaling pathways.
- PAKs are divided into group I (PAK1-3) and group II (PAK4-6), with increasing research focus on group II.
- Group II PAKs are vital for cellular processes implicated in cancer development and progression.
Purpose of the Study:
- To review the biological activities of group II PAKs.
- To highlight the significance of group II PAKs in gastrointestinal cancer.
- To discuss small-molecule inhibitors targeting group II PAKs for cancer therapy.
Main Methods:
- Literature review of biological functions of group II PAKs.
- Analysis of group II PAKs' role in gastrointestinal cancer.
- Survey of existing small-molecule inhibitors for group II PAKs.
Main Results:
- Group II PAKs are implicated in fundamental cellular processes relevant to cancer.
- Dysregulation of group II PAKs contributes to gastrointestinal cancer development and progression.
- Current group II PAKs inhibitors lack sufficient kinase selectivity and drug-like properties.
Conclusions:
- Group II PAKs represent promising therapeutic targets for cancer treatment.
- There is a critical need for isoform- and kinase-selective group II PAK inhibitors.
- Further development of effective group II PAK inhibitors could advance gastrointestinal cancer therapy.
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