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Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT
Published on: January 22, 2018
PAK as a therapeutic target in gastric cancer
Xiaodong Li1, Funan Liu, Feng Li
1Department of Cell Biology, China Medical University, Key Laboratory of Cell Biology, Ministry of Public Health, Shenyang, Liaoning 110001, P. R. China. fli@mail.cmu.edu.cn
Importance Of The Field:
Gastric cancer is one of the most common causes of cancer death worldwide. P21-activated kinases (PAKs), regulators of cancer-cell signalling networks, play fundamental roles in a range of cellular processes through their binding partners or kinase substrates.
Areas Covered In This Review:
The complex regulation of PAKs through their upstream or downstream effectors in human cancers, especially in gastric cancer, are described and the identified inhibitors of PAKs are summarized.
What The Readers Will Gain:
The structural differences and activation mechanisms between two subgroups of PAK are described. Both groups of PAKs play complicated and important roles in human gastric cancer, which indicated a possible way for us to identify the specific inhibitors targeting PAKs for gastric cancer.
Take Home Message:
PAKs play important roles in progression of many cancer types, the full mechanisms of PAKs in gastric cancer are still unclear. It seems there are different roles for two groups of PAKs in cancers. Group I PAKs play their functions mostly through their specific substrates, however, many binding partners that are independent of phosphorylation by group II PAKs were identified. Finding specific inhibitors of PAKs will help us discover the roles of PAKs and target these kinases in human gastric cancer.
Insights
P21-activated kinases (PAKs) are crucial in gastric cancer progression. Understanding their distinct roles and developing specific PAK inhibitors offers a promising therapeutic strategy for this deadly disease.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Signaling
Background:
- Gastric cancer is a leading cause of cancer mortality globally.
- P21-activated kinases (PAKs) are key regulators of cellular signaling networks involved in cancer progression.
Purpose of the Study:
- To review the complex regulation of PAKs in human cancers, particularly gastric cancer.
- To summarize identified PAK inhibitors for potential therapeutic applications.
Main Methods:
- Description of PAK regulation by upstream and downstream effectors in gastric cancer.
- Summary of identified PAK inhibitors.
Main Results:
- Detailed structural differences and activation mechanisms of two PAK subgroups.
- PAKs play significant, complex roles in human gastric cancer, suggesting targeted inhibition is feasible.
Conclusions:
- PAKs are implicated in various cancers, but their precise mechanisms in gastric cancer require further elucidation.
- Group I and Group II PAKs exhibit distinct functions, influencing substrate phosphorylation and binding partners.
- Targeting specific PAK inhibitors holds potential for advancing gastric cancer treatment and understanding PAK roles.
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