APOE Knockout HEPG2 Cell Line

The choice depends on whether you are studying APOE's role as a major lipoprotein component or modeling APOE genotype effects in cardiovascular and Alzheimer's disease. The Knockout line is the standard tool for asking whether APOE is required for these processes — APOE is a 299-aa secreted lipoprotein component principally synthesized in liver (also brain astrocytes/microglia) that binds LDL receptor family (LDLR, LRP1) for lipoprotein clearance; APOE has three major isoforms (ε2, ε3, ε4) defined by cysteine/arginine at residues 112 and 158 — ⭐⭐⭐ APOE4 (R112, R158) is the single strongest genetic risk factor for late-onset Alzheimer's disease, while APOE2 is protective. Overexpression is useful for studying APOE isoform effects. For lipoprotein metabolism and AD research, the EDITGENE APOE Knockout in Hep-G2 is uniquely valuable — Hep-G2 is a hepatocellular carcinoma line, providing the principal context for hepatic APOE synthesis (the main source of plasma APOE). Rescue with APOE2 (C112, C158), APOE3 (C112, R158), or APOE4 (R112, R158) enables isoform-specific functional dissection — gold-standard experimental design for studying APOE allelic variation. The knockout is valuable for studying hepatic lipoprotein assembly, APOE4-driven AD risk mechanisms, and emerging APOE-targeted therapeutics (APOE-mimetic peptides, anti-APOE antibodies).

Primary applications: • APOE isoform rescue: APOE2/APOE3/APOE4 isoform-specific rescue for ⭐⭐⭐ AD genetic risk modeling (APOE4 = strongest late-onset AD risk). • Hepatic lipoprotein assembly: VLDL/HDL assembly and secretion analysis in APOE-null Hep-G2 cells. • LDLR/LRP1 binding: APOE-receptor binding analysis given lipoprotein clearance role. • Cardiovascular biology: in heterologous CVD-relevant contexts, APOE-mediated lipoprotein metabolism. • Anti-APOE antibody specificity: emerging anti-APOE4 antibody specificity testing for AD therapy development. EDITGENE recommends this Hep-G2 hepatic model for researchers investigating APOE isoform-specific functions in lipoprotein metabolism and AD genetic risk biology.

Yes, and rescue experiments are uniquely powerful for APOE isoform research: • Construct design: use codon-modified APOE2, APOE3, or APOE4 sequences with small C-terminal tags (FLAG, HA, after signal peptide cleavage). APOE has signal peptide, N-terminal receptor-binding domain (LDL receptor binding), and C-terminal lipid-binding domain — preserve all elements. • Isoform-specific rescue: ⭐⭐⭐ APOE2 (C112, C158), APOE3 (C112, R158), APOE4 (R112, R158) — gold-standard experimental design for APOE genetic variation research. • Receptor-binding-deficient rescue: R142C or R145A mutations in receptor-binding region disrupt LDLR binding. • Secretion validation: confirm conditioned media APOE secretion by ELISA. • Functional readout: rescue should restore lipoprotein assembly and LDLR-mediated clearance. Hep-G2 transduces efficiently with lentivirus and supports stable rescue line generation.