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Assessing Cellular Target Engagement by SHP2 PTPN11 Phosphatase Inhibitors
Published on: July 17, 2020
WIP1 phosphatase as pharmacological target in cancer therapy
Soňa Pecháčková1, Kamila Burdová1, Libor Macurek2
1Department of Cancer Cell Biology, Institute of Molecular Genetics of the ASCR, CZ-14220, Prague, Czech Republic.
Abstract:
DNA damage response (DDR) pathway protects cells from genome instability and prevents cancer development. Tumor suppressor p53 is a key molecule that interconnects DDR, cell cycle checkpoints, and cell fate decisions in the presence of genotoxic stress. Inactivating mutations in TP53 and other genes implicated in DDR potentiate cancer development and also influence the sensitivity of cancer cells to treatment. Protein phosphatase 2C delta (referred to as WIP1) is a negative regulator of DDR and has been proposed as potential pharmaceutical target. Until recently, exploitation of WIP1 inhibition for suppression of cancer cell growth was compromised by the lack of selective small-molecule inhibitors effective at cellular and organismal levels. Here, we review recent advances in development of WIP1 inhibitors and discuss their potential use in cancer treatment.
Insights
Targeting protein phosphatase 2C delta (WIP1) with novel inhibitors shows promise for cancer treatment. Inhibiting WIP1, a negative regulator of DNA damage response, could suppress tumor growth and enhance therapy sensitivity.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- The DNA damage response (DDR) pathway is crucial for maintaining genomic stability and preventing cancer.
- Tumor suppressor p53 integrates DDR, cell cycle checkpoints, and cell fate decisions under genotoxic stress.
- Mutations in TP53 and DDR genes drive cancer development and affect treatment sensitivity.
Purpose of the Study:
- To review recent advancements in the development of WIP1 inhibitors.
- To discuss the therapeutic potential of WIP1 inhibition in cancer treatment.
Main Methods:
- Literature review of recent studies on WIP1 inhibitors.
- Analysis of the role of WIP1 in DDR and cancer.
Main Results:
- Protein phosphatase 2C delta (WIP1) negatively regulates the DDR pathway.
- Development of selective small-molecule WIP1 inhibitors has been challenging but is advancing.
- WIP1 inhibition is a potential strategy for cancer therapy.
Conclusions:
- WIP1 inhibitors represent a promising new avenue for cancer treatment.
- Targeting WIP1 may enhance the efficacy of existing cancer therapies.
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