Mefv Knockout IBMDM Cell Line

The choice depends on whether you are studying Mefv (pyrin, marenostrin)'s role as a RhoA-monitoring inflammasome sensor or modeling familial Mediterranean fever (FMF). The Knockout line is the standard tool for asking whether pyrin is required for inflammasome activation — pyrin is activated when bacterial toxins (e.g., Clostridium difficile TcdB, Vibrio cholerae VopF) or RhoA inactivators trigger pyrin dephosphorylation at S205/S241 and release from 14-3-3 inhibition, leading to ASC oligomerization and caspase-1 activation. Overexpression is useful for studying gain-of-function FMF mutations. For inflammasome research, the EDITGENE Mefv Knockout in IBMDM is uniquely valuable — IBMDM (immortalized bone marrow-derived macrophages) preserve macrophage-like pyrin responses, the physiological cell type for pyrin biology. Mefv mutations cause familial Mediterranean fever (FMF), the most common monogenic autoinflammatory disease — disease variant rescue (e.g., M680I, M694V, V726A) enables genotype-function studies. Rescue with wild-type or phospho-mimetic (S205D/S241D) pyrin enables comprehensive mechanism studies. The knockout is a critical specificity control for colchicine — the gold-standard FMF treatment — mechanism research.

Primary applications: • Inflammasome activation: ASC oligomerization, caspase-1 cleavage, IL-1β/IL-18 release following C. difficile toxin B (TcdB) treatment or RhoA inactivation. • FMF modeling: rescue with patient-derived activating mutations (M680I, M694V, V726A, E148Q) for genotype-function studies of FMF — the most common monogenic autoinflammatory disease. • Pyrin phosphorylation: phospho-pyrin (S205, S241) Western blot following RhoA inactivation given the dephosphorylation-activated mechanism. • Colchicine mechanism studies: colchicine's effect on pyrin signaling — colchicine is the gold-standard FMF treatment. EDITGENE recommends this IBMDM-based model for researchers investigating pyrin inflammasome biology, FMF disease mechanisms, and colchicine pharmacology.

Yes. Pyrin rescue experiments are well-established for FMF research: • Construct design: use a codon-modified Mefv sequence with a small C-terminal tag (FLAG, HA). Pyrin has N-terminal PYD (death domain superfamily), B-box zinc finger, coiled-coil, and C-terminal B30.2/SPRY domain — preserve all elements. • FMF mutation rescue: B30.2-localized FMF mutations (M680I, M694V, V726A) enable disease genotype-function studies — these mutations relieve 14-3-3-mediated inhibition. • Phospho-mimetic rescue: S205D/S241D pyrin remains inhibited by 14-3-3 binding even after stimulation, serving as an activation-resistant control. • Functional readout: rescue should restore C. difficile TcdB-induced or RhoA inactivation-induced inflammasome activation. IBMDM-specific considerations: • IBMDM are immortalized murine bone marrow-derived macrophages — a primary-cell-like immune background that preserves canonical macrophage signaling. • Lentiviral transduction efficiency is moderate compared to standard cell lines; spinoculation and increased MOI may be required for rescue line generation. • Macrophage activation state can vary — characterize basal polarization (M1/M2 markers) before phenotypic assays.