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NLRP12 suppresses hepatocellular carcinoma via downregulation of cJun N-terminal kinase activation in the hepatocyte.

eLife | 2019

Hepatocellular carcinoma (HCC) is a deadly human cancer associated with chronic inflammation. The cytosolic pathogen sensor NLRP12 has emerged as a negative regulator of inflammation, but its role in HCC is unknown. Here we investigated the role of NLRP12 in HCC using mouse models of HCC induced by carcinogen diethylnitrosamine (DEN). Nlrp12-/- mice were highly susceptible to DEN-induced HCC with increased inflammation, hepatocyte proliferation, and tumor burden. Consistently, Nlrp12-/- tumors showed higher expression of proto-oncogenes cJun and cMyc and downregulation of tumor suppressor p21. Interestingly, antibiotics treatment dramatically diminished tumorigenesis in Nlrp12-/- mouse livers. Signaling analyses demonstrated higher JNK activation in Nlrp12-/- HCC and cultured hepatocytes during stimulation with microbial pattern molecules. JNK inhibition or NLRP12 overexpression reduced proliferative and inflammatory responses of Nlrp12-/- hepatocytes. In summary, NLRP12 negatively regulates HCC pathogenesis via downregulation of JNK-dependent inflammation and proliferation of hepatocytes.

Pubmed ID: 30990169 RIS Download

Research resources used in this publication

Antibodies used in this publication

Associated grants

  • Agency: NCI NIH HHS, United States
    Id: R01 CA190525
  • Agency: Cancer Prevention and Research Institute of Texas, International
    Id: RP160169

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ATCC (tool)

RRID:SCR_001672

Global nonprofit biological resource center (BRC) and research organization that provides biological products, technical services and educational programs to private industry, government and academic organizations. Its mission is to acquire, authenticate, preserve, develop and distribute biological materials, information, technology, intellectual property and standards for the advancement and application of scientific knowledge. The primary purpose of ATCC is to use its resources and experience as a BRC to become the world leader in standard biological reference materials management, intellectual property resource management and translational research as applied to biomaterial development, standardization and certification. ATCC characterizes cell lines, bacteria, viruses, fungi and protozoa, as well as develops and evaluates assays and techniques for validating research resources and preserving and distributing biological materials to the public and private sector research communities.

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NCBI BioProject (tool)

RRID:SCR_004801

Database of biological data related to a single initiative, originating from a single organization or from a consortium. A BioProject record provides users a single place to find links to the diverse data types generated for that project. It is a searchable collection of complete and incomplete (in-progress) large-scale sequencing, assembly, annotation, and mapping projects for cellular organisms. Submissions are supported by a web-based Submission Portal. The database facilitates organization and classification of project data submitted to NCBI, EBI and DDBJ databases that captures descriptive information about research projects that result in high volume submissions to archival databases, ties together related data across multiple archives and serves as a central portal by which to inform users of data availability. BioProject records link to corresponding data stored in archival repositories. The BioProject resource is a redesigned, expanded, replacement of the NCBI Genome Project resource. The redesign adds tracking of several data elements including more precise information about a project''''s scope, material, and objectives. Genome Project identifiers are retained in the BioProject as the ID value for a record, and an Accession number has been added. Database content is exchanged with other members of the International Nucleotide Sequence Database Collaboration (INSDC). BioProject is accessible via FTP.

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RRID:IMSR_JAX:000664

Mus musculus with name C57BL/6J from IMSR.

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RRID:IMSR_JAX:000664

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BD FACSDiva Software (software resource)

RRID:SCR_001456

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p38 MAPK (D13E1) XP Rabbit mAb (antibody)

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RRID:AB_2129575

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RRID:AB_331762

This monoclonal targets Phospho-p38 MAPK (Thr180/Tyr182) (3D7) Rabbit mAb

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RRID:AB_2491009

This monoclonal targets Phospho-Stat3 (Tyr705)

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SAPK/JNK Antibody (antibody)

RRID:AB_2250373

This polyclonal targets SAPK/JNK

View all literature mentions

Phospho-NF-κB p65 (Ser536) (93H1) Rabbit mAb (antibody)

RRID:AB_331284

This monoclonal targets NF-KappaB p65, phospho (Ser536)

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RRID:AB_2259616

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Akt Antibody (antibody)

RRID:AB_329827

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Recombinant Anti-Ki67 antibody [SP6] (antibody)

RRID:AB_302459

This recombinant monoclonal targets Ki67

View all literature mentions

RAT ANTI MOUSE F4/80 (antibody)

RRID:AB_323806

This monoclonal targets RAT ANTI MOUSE F4/80

View all literature mentions

BrdU (Bu20a) Mouse mAb (antibody)

RRID:AB_10548898

This monoclonal targets BrdU (Bu20a) Mouse mAb

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QIIME (software resource)

RRID:SCR_008249

THIS RESOURCE IS NO LONGER IN SERVICE. Documented on February 23,2023.Software package for comparison and analysis of microbial communities, primarily based on high-throughput amplicon sequencing data, but also supporting analysis of other types of data. QIMME analyzes and transforms raw sequencing data generated on Illumina or other platforms to publication quality graphics and statistics.

View all literature mentions

GraphPad Prism (software resource)

RRID:SCR_002798

Statistical analysis software that combines scientific graphing, comprehensive curve fitting (nonlinear regression), understandable statistics, and data organization. Designed for biological research applications in pharmacology, physiology, and other biological fields for data analysis, hypothesis testing, and modeling.

View all literature mentions

FlowJo (software resource)

RRID:SCR_008520

Software for single-cell flow cytometry analysis. Its functions include management, display, manipulation, analysis and publication of the data stream produced by flow and mass cytometers.

View all literature mentions

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RRID:AB_893627

This monoclonal targets TCR beta chain

View all literature mentions

PE Anti-Mouse CD11c (N418) (antibody)

RRID:AB_2621747

This monoclonal targets CD11c

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APC Anti-Mouse F4/80 Antigen (BM8.1) (antibody)

RRID:AB_2621602

This monoclonal targets F4/80 Antigen

View all literature mentions