SPDEF Knockout HEC-1-B Cell Line

The choice depends on whether you are studying SPDEF's role as an ETS family transcription factor in goblet cell differentiation, secretory epithelium biology, or endometrial cancer. The Knockout line is appropriate for asking whether SPDEF is required for mucin gene expression and secretory cell programs — particularly relevant in HEC-1-B, an endometrial adenocarcinoma line where SPDEF has been implicated in disease progression. Overexpression is useful for studying SPDEF's pioneer transcription factor activity or for testing sufficiency for goblet cell-like differentiation. For SPDEF research, the EDITGENE Knockout in HEC-1-B is particularly relevant for endometrial cancer biology — HEC-1-B is one of the standard endometrial adenocarcinoma models, and SPDEF expression is a feature of this lineage. Rescue with wild-type or DNA-binding-deficient (ETS domain mutant) SPDEF enables structure-function dissection.

Primary applications: • Mucin gene expression: MUC5AC, MUC5B, and other secretory cell marker expression analysis following SPDEF loss in the endometrial cancer context. • Endometrial cancer phenotype: proliferation, migration, and invasion assays relevant to SPDEF's reported roles in endometrial cancer progression. • Pioneer factor activity: ChIP-seq for SPDEF chromatin occupancy and chromatin accessibility analysis at SPDEF target sites. • Transcriptomic profiling: RNA-seq to map SPDEF-dependent gene programs in endometrial carcinoma. EDITGENE recommends this model for researchers investigating SPDEF transcription factor biology, endometrial cancer mechanisms, and ETS family pioneer factor function.

Yes. SPDEF rescue experiments require attention to ETS family transcription factor function: • Construct design: use a codon-modified SPDEF sequence with a small C-terminal tag (FLAG, HA). SPDEF contains an N-terminal SAM/PNT domain and C-terminal ETS DNA-binding domain — both should be preserved. • DNA-binding-deficient rescue: specific point mutations in the ETS DNA-binding domain abolish target site engagement while preserving protein-protein interactions, enabling structure-function dissection. • SAM/PNT-mutant rescue: SAM/PNT domain mutations affect SPDEF self-association and protein interactions, separating transcriptional activation from polymerization functions. • Functional readout: rescue should restore mucin gene expression (MUC5AC, MUC5B) and endometrial cancer-related phenotypes in HEC-1-B. HEC-1-B is an endometrial adenocarcinoma cell line that transduces with lentivirus at standard efficiency and supports stable rescue line generation.