| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Product Type | |
| Reporter | |
| Selection Marker | Blasticidin, GFP (constitutively expressed), Hygromycin, Puromycin, RFP (constitutively expressed), Zeocin |
| Shipping | |
| Species |
Background
TIGIT (T cell immunoreceptor with Ig and ITIM domains) is a co-inhibitory receptor expressed on activated T cells, regulatory T cells, and natural killer cells. By competing with the co-stimulatory receptor CD226 for the ligands CD155 and CD112, TIGIT dampens T cell and NK cell activation and contributes to peripheral tolerance and tumor immune evasion. TIGIT engagement suppresses NFAT-dependent transcription downstream of the T cell receptor, so NFAT-driven reporter systems provide a quantitative readout of TIGIT signaling. TIGIT is an actively pursued immune checkpoint, and such reporters are widely used to characterize checkpoint-blockade antibodies and other immunotherapy candidates.
Product Description & Applications
The TIGIT/NFAT Reporter Lentivirus is a two-vial immunotherapy reporter system for studying TIGIT signaling. Vial 1 constitutively expresses the human TIGIT receptor with an antibiotic selection marker, while Vial 2 carries tandem NFAT response elements driving a dual reporter combining secreted Gaussia luciferase (GLuc) and a fluorescent protein (GFP or RFP). Sequential transduction and selection generate a dual-stable effector cell line that responds quantitatively to receptor engagement. Secreted GLuc accumulates in conditioned media for kinetic, lysis-free sampling, while the fluorescent reporter supports microscopy and flow cytometry. Applications include studying immune suppression mechanisms, evaluating checkpoint inhibitor therapies, and characterizing T cell activation. Supplied as high-titer, VSV-G-pseudotyped third-generation lentiviral particles purified by PEG precipitation and sucrose gradient centrifugation.
About This Product
This 2-vial immunotherapy reporter system consists of a Vial 1 Receptor Lentivirus encoding human TIGIT under a constitutive promoter with antibiotic selection, and a Vial 2 Reporter Lentivirus encoding tandem NFAT (or NF-κB) response elements driving a dual reporter (GFP, GFP-P2A-GLuc, GLuc, GLuc-P2A-GFP, GLuc-P2A-RFP, RFP, RFP-P2A-GLuc). Sequential transduction and selection generates a dual-stable effector cell line that responds quantitatively to receptor stimulation with a ratiometric fluorescent + bioluminescent readout.
Secreted Gaussia luciferase (where included) accumulates in conditioned media, enabling kinetic sampling without cell lysis. The combined fluorescent and luminescent outputs allow parallel microscopy-based visualization and plate-reader luminometry from the same cell population — providing assay redundancy and flexibility for potency testing formats compliant with regulatory expectations for cell-based functional assays.
Can't find the lentiviral construct you need, or want to adjust key design elements? Contact us to discuss custom LV design and optional add-ons.
Common customization requests
- Insert / payload: replace the gene/sequence, swap to a different isoform, add mutations, or optimize cloning features.
- Expression design: change promoter (e.g., CMV/EF1α/PGK), add enhancers, or adjust regulatory elements.
- Reporters: add/swap GFP/RFP/mCherry/luciferase (single or dual reporters where applicable).
- Selection markers: add/swap puromycin/blasticidin/neomycin or fluorescent selection options.
- Vector format: switch between OE, shRNA, CRISPR (sgRNA/Cas systems), or control vectors (where supported).
Add-ons you can request
- Control viruses: empty vector, non-targeting shRNA, reporter-only controls, or matched backbone controls.
- Packaging / format: concentration options, aliquoting, or custom fill volume for screening workflows.
- Documentation: construct map/sequence confirmation package (as available) and batch documentation.
What to include in your request
- Target cell type/model (cell line or primary cells) and intended readout (reporter, knockdown, OE, etc.)
- Insert sequence (FASTA) or reference ID, plus any required tags/mutations
- Promoter, reporter, and selection marker preferences
- Desired scale and preferred format (aliquots / concentration requests)
Email us at support@biohippo.com or use the Talk to a Scientist request form.
