
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
PDX-1 Lentiviral Activation Particles (h) | sc-400792-LAC | 200 µl | $455.00 |
PDX1 encodes the homeobox transcription factor PDX-1, a master regulator of pancreatic lineage specification and β-cell identity that coordinates endocrine differentiation and glucose-responsive gene expression. PDX-1 binds promoters and enhancers of insulin and other β-cell functional genes, integrating transcriptional programs with signaling networks that govern pancreatic development, cellular maturation, and metabolic homeostasis. Dysregulated PDX1 activity is linked to impaired β-cell function and pancreatic developmental defects, and altered expression patterns have been studied in diabetes-related mechanisms. As a lineage-defining factor, PDX-1 is widely used as a molecular handle to interrogate pancreatic progenitor fate decisions, endocrine gene networks, and stress responses in human cell models.
PDX-1 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 PDX1 upregulation across a broader range of human cell types.
PDX-1 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 PDX1 transcriptional start site, where VP64, p65, and HSF1 act cooperatively to recruit endogenous transcriptional machinery and drive sustained upregulation of endogenous PDX-1 expression. The use of nuclease-inactive dCas9 avoids the introduction of double-strand DNA breaks and preserves the native PDX1 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.