Members of the NLR family can assemble inflammasome complexes with the adaptor protein ASC and caspase-1 that result in the activation of caspase-1 and the release of IL-1β and IL-18. Although the NLRC4 inflammasome is known to have a protective role in tumorigenesis, there is an increased appreciation for the inflammasome-independent actions of NLRC4. Here, we utilized a syngeneic subcutaneous murine model of B16F10 melanoma to explore the role of NLRC4 in tumor suppression. We found that NLRC4-deficient mice exhibited enhanced tumor growth that was independent of the inflammasome components ASC and caspase-1.
Ann M. Janowski, Oscar R. Colegio, Emma E. Hornick, Jennifer M. McNiff, Matthew D. Martin, Vladimir P. Badovinac, Lyse A. Norian, Weizhou Zhang, Suzanne L. Cassel, Fayyaz S. Sutterwala
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