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Published on: July 17, 2020
Protein Tyrosine Phosphatase PRL-3: A Key Player in Cancer Signaling
Haidong Liu1,2, Xiao Li3, Yin Shi4
1Zhejiang Cancer Hospital, Hangzhou 310022, China.
Abstract:
Protein phosphatases are primarily responsible for dephosphorylation modification within signal transduction pathways. Phosphatase of regenerating liver-3 (PRL-3) is a dual-specific phosphatase implicated in cancer pathogenesis. Understanding PRL-3's intricate functions and developing targeted therapies is crucial for advancing cancer treatment. This review highlights its regulatory mechanisms, expression patterns, and multifaceted roles in cancer progression. PRL-3's involvement in proliferation, migration, invasion, metastasis, angiogenesis, and drug resistance is discussed. Regulatory mechanisms encompass transcriptional control, alternative splicing, and post-translational modifications. PRL-3 exhibits selective expressions in specific cancer types, making it a potential target for therapy. Despite advances in small molecule inhibitors, further research is needed for clinical application. PRL-3-zumab, a humanized antibody, shows promise in preclinical studies and clinical trials. Our review summarizes the current understanding of the cancer-related cellular function of PRL-3, its prognostic value, and the research progress of therapeutic inhibitors.
Insights
Phosphatase of regenerating liver-3 (PRL-3) is a key phosphatase in cancer progression, influencing multiple cellular processes. Research is advancing targeted therapies, including small molecule inhibitors and antibodies, for effective cancer treatment.
Area of Science:
- Molecular Biology
- Oncology
- Biochemistry
Background:
- Protein phosphatases regulate signal transduction via dephosphorylation.
- Phosphatase of regenerating liver-3 (PRL-3) is a dual-specific phosphatase linked to cancer development.
- Targeting PRL-3 is critical for novel cancer therapies.
Purpose of the Study:
- To review PRL-3's regulatory mechanisms, expression, and roles in cancer.
- To summarize PRL-3's involvement in proliferation, migration, invasion, metastasis, angiogenesis, and drug resistance.
- To discuss the progress of therapeutic inhibitors and the prognostic value of PRL-3.
Main Methods:
- Literature review of PRL-3's function in cancer.
- Analysis of regulatory mechanisms including transcriptional control, alternative splicing, and post-translational modifications.
- Evaluation of PRL-3's expression patterns in various cancer types.
Main Results:
- PRL-3 significantly contributes to cancer progression through multiple cellular functions.
- Specific expression patterns of PRL-3 in certain cancers suggest therapeutic potential.
- Small molecule inhibitors and the antibody PRL-3-zumab show promise in preclinical and clinical studies.
Conclusions:
- PRL-3 is a crucial target for cancer therapy due to its multifaceted roles.
- Further research is needed to optimize PRL-3 inhibitors for clinical application.
- PRL-3-zumab represents a promising therapeutic strategy in ongoing clinical trials.
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