ANXA1 Knockout HAP1 Cell Line

The choice depends on whether you are studying ANXA1 (annexin A1, lipocortin 1)'s role as a pro-resolving anti-inflammatory mediator or modeling its functions in cancer biology. The Knockout line is the standard tool for asking whether ANXA1 is required for these processes — ANXA1 is a Ca²⁺/phospholipid-binding protein that, upon cellular stress or glucocorticoid stimulation, is released to the extracellular space where it binds formyl peptide receptors (FPR2/ALX, FPR1) on neutrophils and monocytes, mediating inflammation resolution; ANXA1 is a major effector of glucocorticoid anti-inflammatory effects. Overexpression is useful for studying ANXA1 gain-of-function effects. For inflammation resolution research, the EDITGENE ANXA1 Knockout in HAP1 enables study of ANXA1 biology. Other annexin family members (ANXA2, ANXA5, ANXA6) expression analysis aids interpretation. Rescue with wild-type ANXA1 is the standard specificity control. The knockout is valuable for studying glucocorticoid anti-inflammatory mechanisms, neutrophil/monocyte resolution biology, FPR2/ALX agonism (emerging ANXA1-mimetic peptides Ac2-26, BMS-986235 in clinical development for cardiovascular and inflammatory diseases), and emerging ANXA1 functions in cancer biology.

Primary applications: • Inflammation resolution: ANXA1 secretion analysis following glucocorticoid (dexamethasone) treatment given ANXA1's role as a glucocorticoid anti-inflammatory effector. • FPR2/ALX agonism: in heterologous FPR2-expressing systems, ANXA1-FPR2 binding and signaling analysis. • Neutrophil/monocyte apoptosis: efferocytosis analysis given ANXA1's role in resolution. • ANXA1-mimetic peptide specificity: Ac2-26, BMS-986235 specificity testing as emerging cardiovascular/inflammatory therapeutics. EDITGENE recommends this model for researchers investigating inflammation resolution biology and ANXA1-mimetic therapeutic development.

Yes. ANXA1 rescue experiments are well-established for inflammation resolution research: • Construct design: use a codon-modified ANXA1 sequence with a small C-terminal tag (FLAG, HA). ANXA1 has N-terminal regulatory region (Ac2-26 mimetic peptide region) and C-terminal annexin core domain (Ca²⁺/phospholipid binding) — preserve all elements. • FPR2-binding-deficient rescue: N-terminal mutations disrupt FPR2/ALX agonism. • Cleavage-site mutants: ANXA1 N-terminal cleavage site mutations affect Ac2-26-like peptide generation. • Functional readout: rescue should restore glucocorticoid-induced ANXA1 release and FPR2-mediated resolution signaling. HAP1-specific considerations: • Diploidization: HAP1 cells gradually diploidize during extended culture — confirm ploidy by flow cytometry at the time of phenotypic assay. • Integration site sensitivity: position effects on transgene expression are more pronounced in near-haploid backgrounds; generating multiple independent rescue clones is strongly recommended. • Transduction efficiency: HAP1 transduces with lentivirus at moderate efficiency — increase MOI compared to standard immortalized lines.