
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
IL-9 CRISPR Activation Plasmid (h) | sc-403774-ACT | 20 µg | $397.00 |
Human IL9 encodes interleukin-9 (IL-9), a pleiotropic cytokine produced by activated T cells, including Th9 subsets, that shapes immune responses at mucosal barriers. IL-9 signals through the IL-9 receptor complex to engage JAK/STAT, particularly STAT5, and intersects with broader cytokine-driven programs that influence lymphocyte differentiation, mast cell biology, and epithelial cell function. Dysregulated IL-9 activity has been implicated in inflammatory and allergic immune processes and in tumor–immune microenvironment modulation, making IL9 a useful node for studying cytokine networks and immune cell–stromal crosstalk. In vitro, IL-9 is commonly examined for its impact on immune activation states, cytokine secretion profiles, and downstream transcriptional programs.
IL-9 CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous IL9 expression without altering the underlying DNA sequence.
IL-9 CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the IL9 locus in human cell lines. The system is built around a catalytically inactive Cas9 (dCas9) carrying two inactivating mutations (D10A and N863A) that eliminate nuclease activity while preserving DNA binding. This dCas9 is fused to VP64, a potent transcriptional activator, and is co-expressed with a blasticidin resistance gene for selection. The second plasmid encodes the MS2-p65-HSF1 fusion protein, a secondary activator complex that works in concert with dCas9-VP64, alongside a hygromycin resistance gene. The third plasmid encodes a target-specific 20 nt sgRNA fused to two MS2 RNA aptamers that recruit the MS2-p65-HSF1 complex to the activation site, accompanied by a puromycin resistance gene. The three plasmids are delivered at a 1:1:1 mass ratio for balanced expression of all system components.
Once assembled at the target locus, the SAM complex binds within approximately 200 bp upstream of the IL9 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous IL-9 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native IL9 locus and enabling the study of IL-9-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of IL-9 pathway restoration in tumor cells with silenced or reduced IL9 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.