Sự miêu tả
Tumor Necrosis Factor-alpha (TNF-α) is the most well-known member of the TNF family and can induce cell death. As a pleiotropic pro-inflammatory cytokine, TNF-α is secreted by various cell types, including adipocytes, activated monocytes, macrophages, B cells, T cells, and fibroblasts. Belonging to the TNF ligand family, it signals through two receptors, TNFR1 and TNFR2. TNF-α exhibits cytotoxicity against a variety of tumor cells and serves as a crucial mediator in the immune response against bacterial infections. Additionally, TNF-α plays a role in the induction of septic shock, autoimmune diseases, rheumatoid arthritis, inflammation, and diabetes. Possessing a broad spectrum of biological activities, TNF-α not only plays a central role in inflammation but also regulates apoptosis, cell proliferation, and differentiation.
Recombinant Human TNF-α is a 17.5 kDa recombinant protein containing 157 amino acid residues. Expressed in E. coli, this product is supplied as a lyophilized powder and is characterized by high activity, high purity, low endotoxin levels, and high stability.
Application
T Cell Expansion & Maintenance: Promotes T cell proliferation via NF-κB signaling and prevents functional exhaustion. Enhances transduction efficiency and supports healthy expansion in TCR-T therapies.
Dendritic Cell Maturation: Drives the differentiation of monocytes into mature dendritic cells (mDCs).
Immune Cell Activation: Enhances the anti-tumor cytotoxicity of CIK cells, NK cells, and macrophages during ex vivo expansion.
Features
High Purity: >95% purity to avoid immune responses caused by residual Host Cell Proteins (HCP) or DNA.
Ultra-Low Endotoxin: <10 EU/mg to minimize the risk of fever or inflammation.
Batch-to-Batch Consistency: Ensures stability and reproducibility in cell culture applications.
Regulatory Compliance: Meets regulatory requirements for cell therapy products and supports Investigational New Drug (IND) applications.
Animal-Origin Free (AOF): Free from animal viruses, pathogens, and exogenous factor contamination, ensuring maximum safety.
Components
|
Components No. |
Name |
90637ES10 |
90637ES50 |
90637ES60 |
90637ES80 |
|
90637 |
Recombinant Human TNF-alpha GMP Protein |
10 μg |
50 μg |
100 μg |
1 mg |
Specifications
|
Synonyms |
Tumor Necrosis Factor, TNFA, TNFSF2, Cachectin, Cytotoxin, Differentiation-inducing factor, DIF |
|
Source |
E.coli |
|
Sequence |
Val77-Leu233. |
|
Molecular Weight |
Approximately 17.5 kDa. |
|
Accession |
P01375 |
|
Tag |
No Tag |
|
Biological Activity |
The ED50 as determined by a cytotoxicity assay using murine L929 cells is 10-50 pg/mL. |
|
Purity |
> 95% as determined by SDS-PAGE and HPLC. |
|
Endotoxin |
< 0.01 EU/μg protein as determined by LAL method. |
|
Sterility |
Negative. |
|
Mycoplasma |
Negative. |
|
Vitro Virus |
Negative. |
|
Host Cell Protein |
Less than 0.5 ng/μg when tested by ELISA. |
|
Host Cell DNA |
Less than 20 ng/mg when tested by qPCR. |
|
Formulation |
Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.4. |
|
Physical Appearance |
Sterile filtered white lyophilized (freeze-dried) powder. |
Storage
This product should be stored at -25~-15℃ for 3 years. After reconstitution, store at -85 to -65°C. Valid for 3 months.
Figure
SDS-PAGE

Figure 1. Human TNF-α GMP Protein on SDS-PAGE under reduced condition. The purity is greater than 95%.
SEC-HPLC

Figure 2. The purity of Human TNF-α GMP Protein is greater than 95% as determined by SEC-HPLC.
Cell Based Assay

Figure 3. The ED50 as determined by a cytotoxicity assay using murine L929 cells is 10-50 pg/mL.
Documents:
Safety Data Sheet
Manuals
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