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Published on: July 20, 2019
NDR2 kinase: A review of its physiological role and involvement in carcinogenesis
Tiphaine Biojout1, Emmanuel Bergot2, Benoit Bernay3
1Université de Caen Normandie, CNRS, Normandie Université, ISTCT UMR6030, GIP CYCERON, F-14000 Caen, France.
Abstract:
The Hippo kinase, NDR2, plays a key role in the natural history of several human cancers, particularly lung cancer, by regulating processes such as proliferation, apoptosis, migration, invasion, vesicular trafficking, autophagy, ciliogenesis and immune response. To examine the specificity of NDR2's action, interaction and function in physiological or tumoral contexts, we first focus on the structural differences in the amino-acid sequence between NDR1 and NDR2. We then establish a correlation between these NDR1/2 differences and specific post-translational regulation, as well as the distinct action, interactions, and functions of NDR2 in physiological or tumoral paradigms, such as lung cancer. Furthermore, the full set of NDR2 partners and/or substrates remains to be identified. Given that it is hypothesized that NDR2 and its partners may offer new perspectives for anticancer therapies, we emphasize potential clustering or functional enrichment networks among the NDR2-specific interactants. Additionally, we provide an unpublished proteomic comparison of the NDR1 versus NDR2 interactome, focusing on human bronchial epithelial cells (HBEC-3), lung adenocarcinoma cells (H2030), and their brain metastasis-derived counterparts (H2030-BrM3). In conclusion, this study underscores the pivotal role of NDR2 in cancer progression, particularly lung cancer, and helps to better understand their specific functions and interactions in both normal and tumor contexts. The identification of NDR2 partners and substrates remains essential, with the potential to open new avenues for anticancer therapies.
Insights
The Hippo kinase NDR2 is crucial in lung cancer progression, regulating key cell processes. Understanding its interactions offers potential new anticancer therapies.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- The Hippo kinase, NDR2, is implicated in the progression of various human cancers, notably lung cancer.
- NDR2 regulates critical cellular processes including proliferation, apoptosis, migration, invasion, vesicular trafficking, autophagy, ciliogenesis, and immune response.
Purpose of the Study:
- To investigate the specific actions, interactions, and functions of NDR2 in physiological and tumoral contexts, particularly lung cancer.
- To explore structural differences between NDR1 and NDR2 and their correlation with distinct post-translational regulation and functions.
- To identify NDR2 partners and substrates for potential anticancer therapeutic strategies.
Main Methods:
- Comparative analysis of amino acid sequences between NDR1 and NDR2.
- Proteomic comparison of NDR1 versus NDR2 interactomes in human bronchial epithelial cells (HBEC-3), lung adenocarcinoma cells (H2030), and their brain metastasis-derived counterparts (H2030-BrM3).
- Analysis of potential clustering and functional enrichment networks among NDR2-specific interactants.
Main Results:
- Structural differences between NDR1 and NDR2 correlate with distinct post-translational regulation and functions.
- NDR2 plays a pivotal role in cancer progression, especially in lung cancer.
- Proteomic data provides insights into NDR1/NDR2 interactomes in relevant lung cancer cell models.
Conclusions:
- NDR2 is a key regulator in cancer, particularly lung cancer, with distinct functions compared to NDR1.
- Identifying NDR2 partners and substrates is crucial for understanding its role in normal and tumor contexts.
- Further research into NDR2 and its interactants may reveal novel anticancer therapeutic targets.
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