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Updated: May 2, 2026

Assessing Cellular Target Engagement by SHP2 PTPN11 Phosphatase Inhibitors
Published on: July 17, 2020
Phosphatase of regenerating liver: a novel target for cancer therapy
Amanda M Campbell1, Zhong-Yin Zhang
1Indiana University School of Medicine, Department of Biochemistry and Molecular Biology , John D. Van Nuys Medical Science Building, Room 4053A, 635 Barnhill Drive, Indianapolis, IN 46202-5126 , USA.
Introduction:
Phosphatases of regenerating livers (PRLs) are novel oncogenes that interact with many well-established cell signaling pathways that are misregulated in cancer, and are known to drive cancer metastasis when overexpressed.
Areas Covered:
This review covers basic information of the discovery and characteristics of the PRL family. We also report findings on the role of PRL in cancer, cell functions and cell signaling. Furthermore, PRL's suitability as a novel drug target is discussed along with current methods being developed to facilitate PRL inhibition.
Expert Opinion:
PRLs show great potential as novel drug targets for anticancer therapeutics. Studies indicate that PRL can perturb major cancer pathways such as Src/ERK1/2 and PTEN/PI3K/Akt. Upregulation of PRLs has also been shown to drive cancer metastasis. However, in order to fully realize its therapeutic potential, a deeper understanding of the function of PRL in normal tissue and in cancer must be obtained. Novel and integrated biochemical, chemical, biological, and genetic approaches will be needed to identify PRL substrate(s) and to provide proof-of-concept data on the druggability of the PRL phosphatases.
Insights
Phosphatases of regenerating livers (PRLs) are promising cancer drug targets. Inhibiting these oncogenes may combat cancer metastasis and signaling pathway disruptions.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Phosphatases of regenerating livers (PRLs) are identified as novel oncogenes.
- PRLs are implicated in deregulated cell signaling pathways frequently observed in cancer.
- Overexpression of PRLs is a known driver of cancer metastasis.
Purpose of the Study:
- To review the discovery and characteristics of the PRL family.
- To summarize the role of PRLs in cancer, cellular functions, and signaling.
- To discuss the potential of PRLs as drug targets and current inhibition strategies.
Main Methods:
- Literature review covering PRL discovery and characteristics.
- Analysis of studies on PRLs' role in cancer and cell signaling.
- Discussion of drug development strategies for PRL inhibition.
Main Results:
- PRLs interact with key cancer-related signaling pathways like Src/ERK1/2 and PTEN/PI3K/Akt.
- Upregulation of PRLs is directly linked to the promotion of cancer metastasis.
- PRLs demonstrate significant potential as therapeutic targets in oncology.
Conclusions:
- PRLs represent promising targets for novel anticancer therapeutics.
- Further research is essential to elucidate PRL function in normal and cancerous tissues.
- Integrated approaches are required to identify PRL substrates and validate druggability for therapeutic development.
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