Compare in-stock recombinant human cytokines for immune-cell culture, expansion and cell-therapy research. This page highlights selected BioCrest Sci products with product-specific expression, endotoxin and biological-activity data. These reagents are for research use only and are not presented as GMP or clinical-grade materials.
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Choose Cytokines by Immune-Cell Research Workflow
- T-cell culture and expansion research: compare IL-2, IL-7 and IL-15 according to the cell model, concentration range and required activity evidence.
- NK-cell culture and response research: evaluate IL-2, IL-15 and IL-21 individually or as part of a research workflow.
- Hematopoietic progenitor and dendritic-cell research: review SCF, FLT3 Ligand and GM-CSF using the product-specific bioassay and endotoxin result.
- Immune activation and response models: use IFN-γ where the published product characteristics match the experimental design.
Protocol requirements differ. The products below are not interchangeable, and the individual product page and lot-specific Certificate of Analysis remain the controlling references.
Selected In-Stock Cytokines for Immune Cell Culture Research
| Product | Research context | Expression | Published endotoxin | Published activity evidence | SKU | Next step |
|---|---|---|---|---|---|---|
| Human IL-2 | T-cell and NK-cell culture research | CHO | ≤1 EU/mg, LAL | CTLL-2 proliferation; specific activity ≥1 × 107 IU/mg | BIC-4735E | View sizes & buy |
| Human IL-7 | T-cell culture and homeostasis research | CHO | ≤10 EU/mg, LAL | PBMC proliferation; ED50 ≤30 ng/mL | BIC-6779E | View sizes & buy |
| Human IL-15 | NK- and T-cell culture research | CHO | ≤10 EU/mg, LAL | CTLL-2 proliferation; ED50 ≤0.1 ng/mL | BIC-6480E | View sizes & buy |
| Human IL-21 | NK-cell response and immune-signaling research | CHO | ≤10 EU/mg, LAL | Enhanced IFN-γ secretion in NK-92 cells; ED50 ≤20 ng/mL | BIC-8414E | View sizes & buy |
| Human Stem Cell Factor | Hematopoietic progenitor-cell research | CHO | ≤10 EU/mg, LAL | Mo7e proliferation; ED50 5–8 ng/mL | BIC-0905E | View sizes & buy |
| Human FLT3 Ligand | Progenitor- and dendritic-cell research | CHO | ≤10 EU/mg, LAL | OCI-AML5 proliferation; ED50 ≤1.0 ng/mL | BIC-3948E | View sizes & buy |
| Human GM-CSF | Myeloid- and dendritic-cell research | CHO | ≤10 EU/mg, LAL | TF-1 proliferation; ED50 ≤0.2 ng/mL | BIC-3993E | View sizes & buy |
| Human IFN-γ | Immune activation and response models | CHO | ≤10 EU/mg, LAL | Mo7e proliferation; ED50 ≤2 ng/mL | BIC-3615E | View sizes & buy |
All eight products above currently display 50 μg, 100 μg, 500 μg and 1 mg options and are listed as in stock. Confirm current pricing, stock quantity and the applicable lot documentation before ordering.
How to Select a Cytokine for Cell Culture Research
- Match the biological question. Select the cytokine or combination based on the immune-cell population and research endpoint.
- Check the species and expression system. Every product compared above is human and CHO-expressed; verify compatibility with the experimental model.
- Use the numerical endotoxin result. Do not rely on an “ultra-low” label alone. Compare the product-specific limit with the planned dose and cell sensitivity.
- Review the actual activity assay. ED50, specific activity, cell line and readout differ by target.
- Confirm the current lot. Request the CoA when lot-level endotoxin, purity or activity documentation is required.
Request a Multi-Product Quote
For a quotation, include the required SKUs, sizes, quantities, application, numerical endotoxin requirement, destination country and any lot-documentation requirements. BioCrest Sci can confirm current stock, pricing and dispatch information for the selected products.
Request Price & Availability Request a CoA
Related Product Collections and Guides
- Recombinant Interleukins
- Ultra-Low Endotoxin Recombinant Proteins
- Complete Recombinant Protein Catalog
- How to Choose Recombinant Interleukins for Your Research
Frequently Asked Questions
Are these products GMP or clinical grade?
No. The products on this page are presented for research use only. Do not interpret this page as a GMP, clinical-grade or therapeutic-use claim.
Do all selected cytokines have the same endotoxin limit?
No. BIC-4735E currently lists ≤1 EU/mg, while the other selected products list their own numerical limits. Always verify the individual product page and current CoA.
Can I purchase online instead of requesting a quote?
Yes. Each product link opens its size-selection and purchasing page. Use the inquiry form when you need multiple SKUs, larger quantities, current lot documentation or a formal quotation.
Can BioCrest Sci help compare several cytokines for one workflow?
Yes. Submit the planned cell type, research application, required targets, quantities and documentation needs through the inquiry form. Product selection remains experiment-specific.
For research use only. Product specifications, pricing, stock status and dispatch timing are confirmed for the selected SKU and lot.