
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
HIF1a Lentiviral Activation Particles (h) | sc-400036-LAC | 200 µl | $455.00 |
HIF1A encodes hypoxia-inducible factor 1 alpha (HIF1a), a central oxygen-sensitive transcription factor that integrates cellular responses to low oxygen tension. Under hypoxia, stabilized HIF1a dimerizes with ARNT and binds hypoxia response elements to regulate genes controlling angiogenesis, glycolysis, erythropoiesis, pH homeostasis, and cell survival, intersecting with PI3K–AKT–mTOR, MAPK, and VHL-mediated proteostasis pathways. HIF1a activity shapes metabolic reprogramming, mitochondrial function, and reactive oxygen species handling, influencing cell fate decisions in stress microenvironments. Dysregulated HIF1A signaling is broadly linked to pathological hypoxia biology, including tumor adaptation, inflammatory remodeling, ischemia-associated cellular stress, and aberrant vascular and fibrotic responses.
HIF1a 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 HIF1A upregulation across a broader range of human cell types.
HIF1a 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 HIF1A transcriptional start site, where VP64, p65, and HSF1 act cooperatively to recruit endogenous transcriptional machinery and drive sustained upregulation of endogenous HIF1a expression. The use of nuclease-inactive dCas9 avoids the introduction of double-strand DNA breaks and preserves the native HIF1A 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.