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Published on: July 17, 2019
Role of p-21-activated kinases in cancer progression
Helen King1, Nicole S Nicholas1, Claire M Wells1
1Division of Cancer Studies, King's College London, London, United Kingdom.
Abstract:
The p-21-activated kinases (PAKs) are downstream effectors of Rho GTPases Rac and Cdc42. The PAK family consists of six members which are segregated into two subgroups (Group I and Group II) based on sequence homology. Group I PAKs (PAK1-3) are the most extensively studied but there is increasing interest in the functionality of Group II PAKs (PAK4-6). The PAK family proteins are thought to play an important role in many different cellular processes, some of which have particular significance in the context of cancer progression. This review explores established and more recent data, linking the PAK family kinases to cancer progression including expression profiles, evasion of apoptosis, promotion of cell survival, and regulation of cell invasion. Finally, we discuss attempts to therapeutically target the PAK family and outline the major obstacles that still need to be overcome.
Insights
p-21-activated kinases (PAKs) are crucial in cancer progression. This review covers PAKs
Area of Science:
- Molecular Biology
- Cell Biology
- Oncology
Background:
- p-21-activated kinases (PAKs) are downstream effectors of Rho GTPases Rac and Cdc42.
- The PAK family comprises six members, divided into Group I (PAK1-3) and Group II (PAK4-6).
- Group I PAKs are well-researched, with growing interest in Group II PAKs' functions.
Purpose of the Study:
- To review the role of PAK family kinases in cancer progression.
- To explore established and recent data linking PAKs to cancer hallmarks.
- To discuss therapeutic targeting of PAKs and associated challenges.
Main Methods:
- Literature review of established and recent research data.
- Analysis of expression profiles, apoptosis evasion, cell survival, and invasion.
- Discussion of current therapeutic strategies and obstacles.
Main Results:
- PAKs are implicated in various cellular processes vital to cancer progression.
- Specific roles include regulating expression profiles, promoting cell survival, and facilitating invasion.
- PAKs contribute to cancer cells evading apoptosis.
Conclusions:
- The PAK family plays a significant role in cancer progression.
- Targeting PAKs presents a potential therapeutic strategy.
- Overcoming obstacles in PAK-targeted therapy is crucial for clinical success.
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