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> Cytokines for Cell Culture 
To support ongoing cell therapy manufacturers and developers, ACROBiosystems has developed a wide array of high-quality cytokines for the in vitro culture of immune cells, stem cells, organoids, and various other cell types. We also offer ActiveMax® (Research-use only), Premium, and GMP grades for our cytokines to better meet the needs of various drug development stages and applications. All three cytokine grades are manufactured using a similar production process, therefore enabling a seamless transition between grades. As a result, we enable you to seamlessly transition between our products and accelerate your research and development.
| ActiveMax® | Premium Grade | GMP Grade | |
|---|---|---|---|
| Application | Research and Development | Research and Development; Preclinical research， seamless transition into clinical phases | Designed to meet clinical phase requirements and bolster your IND application to various regulatory bodies. |
| Quality System | ISO 9001 /ISO 13485 Certified | ISO 9001 /ISO 13485 Certified | ISO 9001 /ISO 13485 Certified (Development stage) GMP Quality Management System (Production stage) |
| Production | ISO certified facilities | ISO certified facilities | GMP certified facilities |
| Transient or stable cell lines | Transient or stable cell lines | Stable cell lines (Full inspection according to USP and ChP) | |
| Limited use of animal-derived materials | Animal-origin free materials or BSE/TSE free | Animal-origin free materials or BSE/TSE free | |
| Research-grade materials | Pharmaceutical-grade materials | Pharmaceutical-grade materials | |
| 0.22μm filter sterilization filtration | Strict 2 grade series sterile filtration | Strict 2 grade series sterile filtration | |
| Class C+A room with manual aseptic filling (ISO5) | Class C+A room with manual aseptic filling (ISO5) | Class B+A cleanroom with automatic filling machine | |
| No additional virus clearance steps | No additional virus clearance steps | 2 additional virus removal and inactivation steps (nanofiltration + low pH) | |
| Quality Control | Sterility testing | Sterility / Mycoplasma testing | Sterility / Mycoplasma testing |
| Endotoxin control and detection | Endotoxin control and detection | Endotoxin control and detection | |
| Validated key equipment and analytical instruments | Validated key equipment and analytical instruments | Validated equipment /analytical instruments/analytical methods（Audit trail available） | |
| No process-related impurity residue testing | Residual DNA/HCP testing | Residual DNA/HCP testing | |
| Limited adventitious agent testing | Limited adventitious agent testing | Complete adventitious agent testing （virus testing and animal in vivo safety experiments） | |
| Documentation | Common regulatory support | Common regulatory support | Comprehensive regulatory support files |
| Non DMF filing | DMF filing (Few products) | DMF filing (All products) |
Transitioning from Premium to GMP 
Cytokines are critical raw materials used in cell culturing for cell and gene therapy (CGT) drugs. Usually, in the preclinical stage, both safety and quality for raw materials are not prioritized. In this case, research-use only products can be used. However, when progressing into later drug development stages such as CMC or clinical phases, it is necessary to replace the raw materials with GMP-grade materials to be compliant with regulatory guidelines. In this transitional period, there is a significant amount of energy dedicated to re-evaluating and validating new raw materials.
To ease this transition from the preclinical development into the clinical stage, we offer several grades of cytokines that have been evaluated to be near-identical in bioactivity, along with the documentation required from GMP products. We recommend using our premium-grade raw materials in the early development stage to seamlessly transition to our GMP-grade raw materials when entering CMC or clinical phases and minimize the number of re-evaluation and validation studies performed.
Sterile
Animal-origin Free
High Purity≥95%
High Bioactivity Verified by Cell-based Assay
ActiveMax®, Premium and GMP Grades Available
Low Endotoxin≤0.1 EU/μg
Carrier Free
Similar to Natural Conformation and Modifications
Consistent between Batches
ActiveMax® Human G-CSF, Tag Free (Cat. No.GCF-H5214) on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
Bioactivity of three different lots of ActiveMax® Recombinant Human LIF (Cat. No. LIF-H521b) is verified by ELISA, and the result shows very high batch-to-batch consistency.
ACRO’s Human IL-2, premium grade (Cat. No.IL2-H5215) has higher bioactivity than that of other competitors when activates T cell with CD3/CD28 magnetic beads at different concentrations.
Bioactivity of three different lots of Recombinant Human TGF-Beta 1 TGFB1 (Cat. No. TG1-H4212) is verified by cell-based assay, and the result shows very high batch-to-batch consistency.
Bioactivity of three different lots of Recombinant Human VEGF165 (Cat. No. VE5-H4210) is verified by cell-based assay, and the result shows very high batch-to-batch consistency.
Recombinant Human IL-15 Protein (premium grade), designed for preclinical stage, has the same functional activity and performance as GMP Grade IL-15 (Cat. No.GMP-L15H13), which enables a seamless transition from preclinical development to clinical phases.
Human IL-7 Protein (premium grade) designed for preclinical stage, has the same functional activity and performance as GMP Grade IL-7 (Cat. No. GMP-L07H24), which enables a seamless transition from preclinical development to clinical phases.
GMP Human IL-7 (Cat. No.GMP-L07H24) stimulates proliferation of PHA-P-activated human peripheral blood mononuclear cell (PBMC). The EC50 for this effect is 3.821 ng/mL, corresponding to a specific activity of > 1.0 ⅹ10^8 IU/mg, which is calibrated against human IL-7 WHO International Standard (NIBSC code: 90/530) (QC tested).
The cell-based assay shows that GMP Human IL-7 (Cat. No. GMP-L07H24) is stable at 37°C for 48 hours and after freezing and thawing 3 times.
Bioactivity of three different lots of GMP Human IL-15 (Cat. No.GMP-L15H13) verified by cell-based assay, and the result shows very high batch-to-batch consistency.
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