The ECHS1 Knockout NCI-H1299 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population in which the ECHS1 gene has been disrupted to establish a loss-of-function model. This product enables investigation of ECHS1 in a non-small cell lung carcinoma (NSCLC) background, providing a physiologically relevant system for studying mitochondrial fatty acid oxidation and metabolic reprogramming. The polyclonal nature preserves cellular heterogeneity, offering a robust platform for functional genomics and drug discovery applications without selection for a single clonal population.
The host cell line, NCI-H1299, is a human NSCLC epithelial cell line originally derived from a lymph node metastasis of a patient with non-small cell lung cancer. These cells are widely employed as a model of metastatic NSCLC due to their aggressive growth characteristics and expression of oncogenic drivers. NCI-H1299 cells exhibit a highly glycolytic phenotype, making them an ideal backdrop for examining alterations in energy metabolism and stress responses upon knockout of mitochondrial enzymes such as ECHS1.
ECHS1 encodes short-chain enoyl-CoA hydratase, a key mitochondrial enzyme that catalyzes the second step of fatty acid ??-oxidation. It functions within the mitochondrial trifunctional protein complex, interacting with HADHA and HADHB, and is chaperoned by HSP60. ECHS1 is transcriptionally regulated by PPAR?? and PGC-1?? in response to nutritional status. Its enzymatic activity generates substrates for the TCA cycle and ketone body synthesis, directly impacting acetyl-CoA production and ATP generation. Downstream, ECHS1 supports TCA cycle flux and oxidative phosphorylation, linking fatty acid catabolism to cellular energy homeostasis.
In the context of NCI-H1299 cells, ECHS1 knockout impairs mitochondrial fatty acid ??-oxidation, reducing acetyl-CoA availability and TCA cycle activity. This metabolic block forces the cells to increase reliance on glycolysis and alternative nutrient sources, as described in the mechanistic summary. Consequently, the knockout model alters proliferation, survival, and stress responses, providing a tool to dissect the metabolic vulnerabilities of NSCLC. The interaction between ECHS1 and its complex partners HADHA and HADHB underscores the importance of intact ??-oxidation for maintaining metabolic flexibility in cancer cells.
This product is well-suited for cancer metabolism research, fatty acid oxidation studies, and mitochondrial dysfunction modeling. Researchers can utilize Seahorse metabolic flux analysis to measure oxygen consumption rate, fatty acid oxidation assays to quantify pathway activity, and metabolomics to profile altered carbon utilization. Proliferation, apoptosis, and migration/invasion assays enable phenotypic characterization, while drug screening with metabolic inhibitors identifies potential therapeutic targets. The ECHS1 Knockout NCI-H1299 Polyclonal Cells also serve as a disease model for ECHS1 deficiency syndromes. For further information, please contact Ascent Research.
