The ECE1 Knockout HEK293T Polyclonal Cells comprise a CRISPR/Cas9-edited polyclonal knockout population derived from HEK293T human embryonic kidney epithelial cells. This product provides a mixed cell pool with heterogeneous disruptions of the ECE1 gene, which encodes endothelin-converting enzyme 1, a metalloprotease essential for the maturation of vasoactive endothelin peptides. The polyclonal format ensures a robust loss-of-function model while avoiding artifacts of clonal isolation.
HEK293T cells are a derivative of the HEK293 line, stably expressing SV40 large T antigen for enhanced episomal plasmid replication. Their high transfection efficiency and consistent growth make them a standard host for gene editing and recombinant protein expression. The embryonic kidney epithelial origin offers a relevant system for studying peptide hormone processing and renal signaling pathways.
ECE1 proteolytically cleaves big endothelin-1 to generate the active 21-amino-acid endothelin-1 peptide. Endothelin-1 binds to G protein-coupled receptors ETA and ETB, activating G??q-mediated phospholipase C. This triggers IP3-dependent calcium release and PKC activation, which in turn stimulates the MAPK cascades, particularly ERK1/2 phosphorylation, driving cell proliferation and migration. ECE1 expression is induced by inflammatory cytokines such as TNF??? and IL?1??, growth factors including TGF??? and VEGF, and physiological stimuli like hypoxia and angiotensin II. In this knockout model, absence of ECE1 prevents endothelin-1 production, eliminating downstream signaling through ETA/ETB and associated calcium and MAPK responses.
Eliminating ECE1 in HEK293T cells blocks the endothelin processing axis, yielding a clean genetic platform to interrogate endothelin-dependent signaling in a human kidney epithelial context. The knockout model circumvents potential off-target effects of pharmacological inhibitors and allows dissection of ECE1-specific functions in cell growth, migration, and ion transport regulation. The polyclonal nature reduces clonal bias, ensuring that phenotypes reflect authentic gene disruption rather than isolated adaptation.
This polyclonal knockout cell population is applicable to endothelin system research, including substrate identification, ECE1 inhibitor screening, and cardiovascular or renal disease modeling. Typical assays with these cells include Western blotting for ECE1, ELISA for endothelin-1, calcium flux measurement, phospho-ERK assessment, and proliferation or migration studies. It is a versatile tool for both mechanistic investigations and drug discovery programs. For further information, please contact Ascent Research.
