Abstract
The therapeutic potential of targeting p21-Activated Kinases (PAK1 – 6) for the treatment of cancer has recently gained traction in the biotech industry. Many pharmaceutically-viable ATP competitive inhibitors have been through different stages of pre-clinical development with only a single compound evaluated in human trails (PF-3758309). The best studied functional roles of PAK proteins are control of cell adhesion and migration. PAK proteins are known downstream effectors of Ras signaling with PAK expression elevated in cancer (pancreatic, colon, breast, lung and other solid tumors). In addition altered PAK expression is a confirmed driver of this disease, especially in tumors harboring oncogenic Ras. However, there are very few examples of gain-of-function PAK mutations, as a majority of the cancer types have elevated PAK expression due to gene amplification or transcriptional modifications. There is a substantial number of known substrates affected by this aberrant PAK activity. One particular substrate, β-catenin, has garnered interest given its importance in both normal and cancer cell development. These data place PAK proteins between two major signaling pathways in cancer (Ras and β -catenin), making therapeutic targeting of PAKs an intriguing approach for the treatment of a broad array of oncological malignancies.
Keywords: Inhibitors, oncology, p21-activated kinase, Ras, Wnt; β-catenin.
Anti-Cancer Agents in Medicinal Chemistry
Title:Therapeutic Potential of Targeting PAK Signaling
Volume: 16 Issue: 1
Author(s): William Senapedis, Marsha Crochiere, Erkan Baloglu and Yosef Landesman
Affiliation:
Keywords: Inhibitors, oncology, p21-activated kinase, Ras, Wnt; β-catenin.
Abstract: The therapeutic potential of targeting p21-Activated Kinases (PAK1 – 6) for the treatment of cancer has recently gained traction in the biotech industry. Many pharmaceutically-viable ATP competitive inhibitors have been through different stages of pre-clinical development with only a single compound evaluated in human trails (PF-3758309). The best studied functional roles of PAK proteins are control of cell adhesion and migration. PAK proteins are known downstream effectors of Ras signaling with PAK expression elevated in cancer (pancreatic, colon, breast, lung and other solid tumors). In addition altered PAK expression is a confirmed driver of this disease, especially in tumors harboring oncogenic Ras. However, there are very few examples of gain-of-function PAK mutations, as a majority of the cancer types have elevated PAK expression due to gene amplification or transcriptional modifications. There is a substantial number of known substrates affected by this aberrant PAK activity. One particular substrate, β-catenin, has garnered interest given its importance in both normal and cancer cell development. These data place PAK proteins between two major signaling pathways in cancer (Ras and β -catenin), making therapeutic targeting of PAKs an intriguing approach for the treatment of a broad array of oncological malignancies.
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Cite this article as:
Senapedis William, Crochiere Marsha, Baloglu Erkan and Landesman Yosef, Therapeutic Potential of Targeting PAK Signaling, Anti-Cancer Agents in Medicinal Chemistry 2016; 16 (1) . https://dx.doi.org/10.2174/1871520615666150617111414
DOI https://dx.doi.org/10.2174/1871520615666150617111414 |
Print ISSN 1871-5206 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5992 |
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