Journal
FRONTIERS IN IMMUNOLOGY
Volume 13, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fimmu.2022.930986
Keywords
NIK; therapeutic targets; B cell malignancies; small molecule inhibitors; in vitro; in vivo
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Funding
- AMC foundation
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This review provides an overview of the role of NF-kappa B-inducing kinase (NIK) in non-canonical NF-kappa B signaling and its association with various malignancies. It discusses the current research on NIK activation, stability, and its potential as a therapeutic target for B cell malignancies. The review also compares different inhibitors targeting NIK and emphasizes the need for further in vitro and in vivo studies as well as clinical trials with NIK inhibitors.
NF-kappa B-inducing kinase (NIK) is a key player in non-canonical NF-kappa B signaling, involved in several fundamental cellular processes, and is crucial for B cell function and development. In response to certain signals and ligands, such as CD40, BAFF and lymphotoxin-beta activation, NIK protein stabilization and subsequent NF-kappa B activation is achieved. Overexpression or overactivation of NIK is associated with several malignancies, including activating mutations in multiple myeloma (MM) and gain-of-function in MALT lymphoma as a result of post-translational modifications. Consequently, drug discovery studies are devoted to pharmacologic modulation of NIK and development of specific novel small molecule inhibitors. However, disease-specific in vitro and in vivo studies investigating NIK inhibition are as of yet lacking, and clinical trials with NIK inhibitors remain to be initiated. In order to bridge the gap between bench and bedside, this review first briefly summarizes our current knowledge on NIK activation, functional activity and stability. Secondly, we compare current inhibitors targeting NIK based on efficacy and specificity, and provide a future perspective on the therapeutic potential of NIK inhibition in B cell malignancies.
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