
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
IL-8RB Lentiviral Activation Particles (h) | sc-401404-LAC | 200 µl | $455.00 |
CXCR2 encodes interleukin-8 receptor beta (IL-8RB), a class A GPCR that binds ELR+ CXC chemokines such as CXCL8/IL-8 to coordinate leukocyte chemotaxis and activation. Upon ligand engagement, IL-8RB signals through Gαi-dependent pathways to regulate PI3K–AKT, PLCβ–Ca²⁺ flux, MAPK/ERK cascades, and β-arrestin–mediated receptor internalization, shaping inflammatory trafficking and neutrophil effector functions. CXCR2 activity intersects with cytokine and NF-κB programs and influences endothelial interactions, angiogenic cues, and remodeling within inflamed tissues. Dysregulated CXCR2 signaling is implicated in chronic inflammatory states and tumor-associated inflammation, supporting mechanistic studies of immune-cell recruitment and microenvironmental signaling.
IL-8RB 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 CXCR2 upregulation across a broader range of human cell types.
IL-8RB 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 CXCR2 transcriptional start site, where VP64, p65, and HSF1 act cooperatively to recruit endogenous transcriptional machinery and drive sustained upregulation of endogenous IL-8RB expression. The use of nuclease-inactive dCas9 avoids the introduction of double-strand DNA breaks and preserves the native CXCR2 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.