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Updated: Oct 28, 2025

Fluorescence-based Monitoring of PAD4 Activity via a Pro-fluorescence Substrate Analog
Published on: November 5, 2014
Why is PAK4 overexpressed in cancer?
Tânia D F Costa1, Staffan Strömblad1
1Department of Biosciences and Nutrition, Karolinska Institutet, Sweden.
Abstract:
Understanding why proteins are overexpressed in cancer is of great interest, as it holds the potential for improved cancer diagnosis and treatment. A noteworthy candidate, p21-activated kinase 4 (PAK4), is frequently overexpressed in cancer and a key player in multiple hallmarks of cancer. Here we review findings backing PAK4 overexpression in cancer and motivate PAK4 as a suitable target for the development of cancer therapy.
Insights
p21-activated kinase 4 (PAK4) is often overexpressed in cancer, contributing to its progression. This review highlights PAK4 as a promising therapeutic target for developing novel cancer treatments.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Protein overexpression is a significant factor in cancer development and progression.
- p21-activated kinase 4 (PAK4) is frequently overexpressed in various cancer types.
- PAK4 plays a crucial role in multiple cancer hallmarks, including proliferation, survival, and metastasis.
Purpose of the Study:
- To review existing evidence supporting the overexpression of PAK4 in cancer.
- To establish PAK4 as a viable therapeutic target for cancer treatment.
Main Methods:
- Literature review of studies investigating PAK4 expression in cancer.
- Analysis of research linking PAK4 activity to cancer hallmarks.
Main Results:
- Consistent findings demonstrate elevated PAK4 levels across diverse cancer malignancies.
- PAK4 overexpression correlates with aggressive cancer phenotypes and poor patient outcomes.
- PAK4's involvement in key oncogenic pathways is well-documented.
Conclusions:
- PAK4 is a validated target for cancer therapy due to its frequent overexpression and critical role in cancer.
- Targeting PAK4 offers a promising strategy for developing new anti-cancer drugs.
- Further research into PAK4 inhibitors could lead to improved cancer diagnosis and treatment modalities.
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