Journal Article (Review Article) DKFZ-2025-02386

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Splice variants of human natural cytotoxicity receptors: novel innate immune checkpoints.

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2018
Springer Heidelberg

Cancer immunology immunotherapy 67(12), 1871 - 1883 () [10.1007/s00262-017-2104-x]
 GO

Abstract: The natural cytotoxicity receptors (NCRs; NKp30, NKp44, and NKp46) were first defined as activating receptors on human NK cells that are important in recognition of and response to tumors. A flurry of recent research, however, has revealed that differential splicing can occur during transcription of each of the NCR genes, resulting in some transcripts that encode receptor isoforms with inhibitory functions. These alternative transcripts can arise in certain tissue microenvironments and appear to be induced by cytokines. Evidence indicates that some of the inhibitory NCRs are triggered by specific ligands, such as the interaction of the inhibitory isoform of NKp44 with PCNA on the surface of tumor cells. Here, we review the different NCR splice variants, cytokines that modulate their expression, their functional impacts on innate immune cells, and their differential expression in the contexts of cancer, pregnancy, and infections. The recent discovery of these inhibitory NCR isoforms has revealed novel innate immune checkpoints, many of which still lack defined ligands and clear mechanisms driving their expression. These NCR checkpoint pathways offer exciting potential therapeutic targets to manipulate innate immune functions under defined pathological conditions, such as cancer, pregnancy disorders, and pathogen exposure.

Keyword(s): Alternative Splicing (MeSH) ; Animals (MeSH) ; Cellular Microenvironment: genetics (MeSH) ; Cellular Microenvironment: immunology (MeSH) ; Cytotoxicity, Immunologic: genetics (MeSH) ; Gene Expression Profiling (MeSH) ; Gene Expression Regulation (MeSH) ; Humans (MeSH) ; Immunity, Innate: drug effects (MeSH) ; Immunity, Innate: genetics (MeSH) ; Receptors, Immunologic: genetics (MeSH) ; Receptors, Immunologic: metabolism (MeSH) ; Immune checkpoints ; Isoforms ; NKp30 ; NKp44 ; NKp46 ; Splice variants ; Receptors, Immunologic

Classification:

Note: #DKFZ-MOST-Ca172#


Database coverage:
Medline ; BIOSIS Previews ; Biological Abstracts ; Clarivate Analytics Master Journal List ; Current Contents - Life Sciences ; DEAL Springer ; DEAL Springer ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection
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The record appears in these collections:
External Publications > Coordinated Projects
Institute Collections > W500

 Record created 2025-11-13, last modified 2025-11-13


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