Human CD8+ T Cells for Research

Human CD8+ T Cells for Research

Source human CD8+ T cells and CD8 T cell samples for immunology, oncology, and cell therapy research. Healthy and disease-state donor options are available.

Human CD8+ T cells are purified from peripheral blood of IRB-consented donors under IRB-approved protocols. CD8+ cytotoxic T lymphocytes recognise antigen presented on MHC class I and kill infected or malignant target cells directly through perforin and granzyme release and Fas-mediated apoptosis. They are the effector population behind checkpoint-inhibitor response, adoptive cell therapy, and antiviral immunity, which makes them central to oncology and infectious disease programmes. Available cryopreserved, these CD8+ T cells deliver high viability and consistent performance for in vitro and in vivo studies.

CD8+ T Cell Subsets and Phenotyping

Cytotoxic T cell function varies sharply by differentiation state, so most studies require a defined subset. Enrichment and phenotyping data are available on request:

• Naive (CD45RA+ CCR7+) and memory (CD45RO+) compartments
• Central memory, effector memory, and terminally differentiated (TEMRA) populations
• Exhaustion phenotyping — PD-1, TIM-3, LAG-3, TIGIT
• Activation markers including CD69, CD25, and HLA-DR
• HLA-typed donors for antigen-specific and MHC class I–restricted work, including HLA-A*02:01
• CMV- and EBV-seropositive donors for virus-specific CTL studies

Isolation and Purity

CD8+ T cells are isolated from fresh peripheral blood or apheresis material by immunomagnetic selection, then cryopreserved to preserve cytotoxic function. Negative selection is used where an untouched population is required for functional killing assays.

• High-purity isolated CD8+ T cells with ≥90% CD8+ viability
• Flow cytometry purity and viability data supplied per lot
• Cryopreserved in CryoStor® CS10 media
• Processed within 24 hours of collection

Product Features

• Human CD8+ T cells for Research Use Only (RUO)
• CD8 positive T cells
• Isolated human CD8+ T cell samples from healthy, clinically screened donors
• Disease-state donor cohorts available to specification
• Custom aliquot sizes and repeat draws from the same donor where available
• IRB-approved protocols with electronic informed consent

Donor Metadata

• Comprehensive donor screening and verified health status
• Demographic data: age, sex assigned at birth, race/ethnicity
• Self-reported medication, allergy, and infectious disease history
• HLA type and CMV/EBV serostatus available on request

Applications

• Cytotoxic T cell activation and degranulation assays
• Antigen-specific killing and target cell cytotoxicity studies
• Cancer immunotherapy, checkpoint inhibitor, and CAR-T research
• TCR discovery and engineering
• T cell exhaustion and tumour microenvironment modeling
• Autoimmune and inflammatory disease research
• Viral immunity and HIV studies
• Single-cell sequencing and transcriptomic profiling

Disease-State CD8+ T Cells

CD8+ T cells are available from donors with physician-confirmed diagnoses, which matters when the cytotoxic compartment is itself the mechanism under study. Current options include systemic lupus erythematosus CD8+ T cells and scleroderma CD8+ T cells. Other indications, including oncology cohorts, can be sourced as a custom collection.

Related Cell Types

If you need a different fraction of the same donor material, see our human CD4+ T cells, human CD3+ T cells (pan-T), human CD56+ NK cells, or the unseparated human PBMCs they are derived from. For large-scale isolation, a human leukopak yields substantially more cells per donor.

Compliance and Quality Assurance

• IRB-approved collections and standardized procedures
• 21 CFR Part 11–compliant e-consent system
• HIPAA-compliant data management

Buy Human CD8+ T Cells for Research

Purchase human CD8+ T cell samples for research, including isolated CD8+ T cells from healthy or disease-state donors, with flexible aliquots and documentation support.

Frequently Asked Questions

What purity can I expect? Isolated CD8+ T cells are supplied at ≥90% purity and viability, with per-lot flow cytometry data.

Can I get HLA-A2+ donors for antigen-specific work? Yes — donors can be selected by HLA type, including HLA-A*02:01, subject to availability.

Are matched CD4+ or PBMC fractions available from the same donor? Yes. Matched fractions from a single collection can be provided where draw volume allows — the cleanest design for CD4/CD8 comparative work.

Do the cells retain cytotoxic function after thaw? Cells are cryopreserved in CryoStor CS10 to preserve effector function. Post-thaw viability data is supplied per lot, and negative selection is recommended where downstream killing assays are planned.

Ordering & Customization

Purchase human CD8+ T cells in standard or custom aliquots. For international orders or regulatory compliance documentation, please contact learnmore@sanguinebio.com. If you need to buy CD8+ T cells for research with specific donor criteria, Sanguine can support custom sourcing and documentation support.