The GSDMD Knockout KYSE-30 Polyclonal Cells product consists of a CRISPR/Cas9-edited polyclonal knockout cell population with targeted disruption of GSDMD, encoding gasdermin D, within the KYSE-30 human esophageal squamous cell carcinoma cell line. This loss-of-function model enables robust investigation of pyroptosis and inflammasome signaling without concerns of clonal variation. The polyclonal knockout format preserves the heterogeneous genetic background of the parental line while providing stable ablation of GSDMD expression, suitable for functional assays in cancer and inflammation research.
KYSE-30 is a well-characterized cell line derived from a well-differentiated esophageal squamous cell carcinoma of a 64-year-old male. These cells retain key oncogenic features and are widely used as a model system for studying esophageal cancer biology, including cell proliferation, invasion, and response to therapeutic agents. The availability of a GSDMD knockout in this context allows dissection of pyroptotic cell death pathways specifically within the esophageal tumor microenvironment.
GSDMD functions as the executioner of pyroptosis. Upon activation of canonical or non-canonical inflammasome pathways, GSDMD is cleaved by inflammatory caspases such as caspase-1, caspase-4, and caspase-5, releasing an N-terminal fragment that oligomerizes and inserts into the plasma membrane to form pores. This process mediates lytic cell death and facilitates the extracellular release of mature cytokines IL-1?? and IL-18, as well as alarmins like HMGB1 and LDH. Upstream, GSDMD activation is regulated by pattern recognition receptors including NLRP3 and AIM2, which assemble with ASC to activate caspase-1. GSDMD interacts with phospholipids such as phosphatidylinositol 4-phosphate and cardiolipin to guide membrane targeting. Representatively, the NLRP3/ASC/caspase-1/GSDMD axis is a critical signaling cascade linking microbial and danger signals to pyroptotic inflammation.
In esophageal squamous cell carcinoma, pyroptosis exhibits dual roles, with studies indicating both tumor-suppressive and tumor-promoting effects depending on context. By eliminating GSDMD in KYSE-30 cells, researchers can directly assess the contribution of pyroptosis to cancer cell death, cytokine release, and immune modulation within the tumor milieu. This model is particularly relevant for evaluating inflammation-driven carcinogenesis and the interplay between cell death pathways and esophageal cancer progression.
This polyclonal GSDMD knockout cell pool is ideal for investigating pyroptosis mechanisms, inflammasome signaling, and drug responses using endpoint assays such as Western blotting, LDH release assays, caspase-1 activity measurements, and ELISA for IL-1?? and IL-18. It also supports flow cytometry-based viability studies, morphological analysis via microscopy, and host-pathogen interaction research. For further inquiries, please contact Ascent Research.
