Background: Nucleotide-binding domain Leucine-rich Repeat Protein 3 (NLRP3) plays a regulatory
role in the immune and inflammatory responses, and has been implicated in Colorectal Cancer (CRC) progression
and metastasis. However, the underlying molecular mechanisms have not been fully elucidated.
Methods: In this study, we analyzed the expression levels of NLRP3 in human CRC tissues, and performed
functional assays in CRC cell lines and a subcutaneous tumor model to elucidate its role in the development and
progression of CRC.
Results: In this study, we found that NLRP3 was significantly upregulated in human CRC tissues and was associated
with tumor size and invasion, lymph node metastasis, venous invasion, neural invasion and TNM staging.
Furthermore, knockdown of NLRP3 in CRC cells inhibited their migration and growth in vitro and in vivo, and
reversed Epithelial-Mesenchymal Transition (EMT) in vitro.
Conclusion: Our findings indicate that NLRP3 likely regulates CRC metastasis by activating the EMT program,
and is a potential therapeutic target.