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NLRP3 inflammasome-mediated cytokine production and pyroptosis cell death in breast cancer

Sara Socorro Faria, Susan Costantini, Vladmir Cláudio Cordeiro de Lima, Victor Pianna de Andrade, Mickaël Rialland, Rebe Cedric, Alfredo Budillon,
Journal of Biomedical Science , Volume 28, pp 1-15; doi:10.1186/s12929-021-00724-8

Abstract: Breast cancer is the most diagnosed malignancy in women. Increasing evidence has highlighted the importance of chronic inflammation at the local and/or systemic level in breast cancer pathobiology, influencing its progression, metastatic potential and therapeutic outcome by altering the tumor immune microenvironment. These processes are mediated by a variety of cytokines, chemokines and growth factors that exert their biological functions either locally or distantly. Inflammasomes are protein signaling complexes that form in response to damage- and pathogen-associated molecular patterns (DAMPS and PAMPS), triggering the release of pro-inflammatory cytokines. The dysregulation of inflammasome activation can lead to the development of inflammatory diseases, neurodegeneration, and cancer. A crucial signaling pathway leading to acute and chronic inflammation occurs through the activation of NLRP3 inflammasome followed by caspase 1-dependent release of IL-1β and IL-18 pro-inflammatory cytokines, as well as, by gasdermin D-mediated pyroptotic cell death. In this review we focus on the role of NLRP3 inflammasome and its components in breast cancer signaling, highlighting that a more detailed understanding of the clinical relevance of these pathways could significantly contribute to the development of novel therapeutic strategies for breast cancer.
Keywords: NLRP3 inflammasome / Gasdermins / IL-1β / Breast cancer

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