
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
FLIPS/L Lentiviral Activation Particles (h) | sc-400400-LAC | 200 µl | $455.00 |
CFLAR encodes cellular FLICE-inhibitory protein (FLIP S/L), a catalytically inactive caspase-8 homolog that modulates death receptor signaling by controlling DISC assembly and caspase-8 activation. Through these interactions, FLIP isoforms tune extrinsic apoptosis, influence necroptosis versus apoptosis decisions, and shape NF-κB–linked inflammatory signaling downstream of TNFR1 and Fas/TRAIL receptors. Altered CFLAR expression is frequently associated with apoptosis resistance and immune evasion phenotypes, making it relevant to studies of tumor cell survival, chronic inflammation, and host–pathogen interactions. CFLAR is also used to probe mechanisms of cytokine-driven survival signaling and crosstalk between apoptotic and innate immune pathways.
FLIPS/L Lentiviral Activation Particles (h) address this need by packaging the complete synergistic activation mediator (SAM) transcriptional activation system into transduction-ready, high-titer lentiviral particles, enabling efficient CFLAR upregulation across a broader range of human cell types.
FLIPS/L Lentiviral Activation Particles (h) deliver all functional components of the synergistic activation mediator (SAM) system via lentiviral transduction. The system comprises three particle preparations co-transduced into target cells: one encoding catalytically inactive dCas9 (D10A and N863A mutations) fused to the VP64 transactivation domain with a blasticidin resistance gene; one encoding the MS2-p65-HSF1 fusion protein with a hygromycin resistance gene; and one encoding a target-specific 20 nt sgRNA fused to two MS2 RNA aptamers with a puromycin resistance gene. Following lentiviral transduction and genomic integration of the expression cassettes, the SAM components are stably expressed and assemble at the target locus within the proximal promoter region upstream of the CFLAR transcriptional start site, where VP64, p65, and HSF1 act cooperatively to recruit endogenous transcriptional machinery and drive sustained upregulation of endogenous FLIPS/L expression. The use of nuclease-inactive dCas9 avoids the introduction of double-strand DNA breaks and preserves the native CFLAR genomic locus and regulatory architecture.
The lentiviral format offers several practical advantages: stable genomic integration supports heritable activation across cell divisions; high-titer particle preparations eliminate the need for in-house viral production; and compatibility with primary, non-dividing, and transfection-resistant cell types expands experimental accessibility. Successful transduction can be confirmed and enriched through triple antibiotic selection using puromycin, hygromycin, and blasticidin.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.