
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
GHR Lentiviral Activation Particles (h) | sc-401382-LAC | 200 µl | $455.00 |
Human GHR encodes the growth hormone receptor, a single-pass transmembrane cytokine receptor that binds pituitary growth hormone to regulate somatic growth, metabolism, and tissue homeostasis. Ligand-induced receptor dimerization activates JAK2 and downstream STAT5 signaling, with additional coupling to PI3K–AKT and MAPK pathways that shape transcriptional programs controlling IGF axis output, lipid and glucose handling, and cell survival. GHR activity is tightly modulated by receptor turnover and negative regulators such as SOCS proteins, influencing signal amplitude and duration. Genetic or functional disruption of GHR signaling is linked to altered growth phenotypes and metabolic dysregulation, and pathway perturbations are studied in contexts including endocrine disorders and cancer biology where GH/IGF signaling can affect proliferation and differentiation.
GHR 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 GHR upregulation across a broader range of human cell types.
GHR 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 GHR transcriptional start site, where VP64, p65, and HSF1 act cooperatively to recruit endogenous transcriptional machinery and drive sustained upregulation of endogenous GHR expression. The use of nuclease-inactive dCas9 avoids the introduction of double-strand DNA breaks and preserves the native GHR 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.