Knockout Mouse Catalog | Cyagen APAC

hTNF-α Mouse

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Model Description

Background: C57BL/6J

Construction Strategy:

Humanization by gene substitution; the murine TNF-α gene is inactivated and replaced by the human TNF-α genomic portion. Human TNF-α is driven by the endogenous promoter of mouse TNF-α.



  • Physiological regulation and expression pattern of the human TNF-α
  • Lack of expression of the murine target gene, thus avoiding cross-reactivity



The humanized TNF-α mouse model allows in vivo efficacy and safety assessment of anti-human TNF-α compounds in the field of autoimmune diseases and inflammation.


  • TNF-α expression analysis
Model Validation

Figure 1. Mean plasmatic concentrations of murine TNF-α and human TNF-α following LPS injection. Mean concentrations of murine TNF-α (A) and human TNF-α (B) measured by ELISA from plasma samples collected from WT (n=2) and KI (n=2) mice treated with saline solution vs. LPS.


Model Validation

Figure 2. ELISA analysis of humanized (red) and murine (blue) TNF-α expression. (Left) αCD3/αCD28 stimulated human peripheral blood mononuclear cells (hPMBC0 and (Right) wild-type or humanized TNF-α (hTNF-α) mouse spleen cells activated with αCD3/αCD28 (Act) or untreated (NA). After stimulated by αCD3/αCD28, humanized mouse peripheral blood mononuclear cells secrete humanized TNF-α (hTNF-α) instead of murine TNF-α (mTNF-α).


  • TNF-α function analysis
Model Validation

Figure 3. Humanized TNF-α (hTNF-α) and mouse TNF-α (mTNF-α) anti-proliferative activity. (Left) The supernatant of wild-type (mTNF-α) and hTNF-α mouse spleen cells activated by αCD3/αCD28 was collected to treat L929 cells. Compared with the supernatant of WT spleen cells, the supernatant of hTNF-α mice spleen cells used to treat L929 cells showed a concentration-dependent anti-proliferative phenotype of TNF-α. (Right) Pretreatment of wild-type mouse and hTNF-α mouse supernatants with murine and human TNF-α antibodies can relieve the inhibitory effect on L929 proliferation.


Model Validation

Figure 4. Human TNF-a induces the expression of several cytokines, including mMCP1, in homozygous TNF-a humanized mice (TNF-a HO).


*For more validation data please contact us.

Category Strain Name Background Order Amount
List Price
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Inflammation & Allergy Humanized Mice hTNF-α / / /

Price Availability

  • Sex: Female
  • Age: 3 to 8 weeks
  • Customers in Asia Pacific region, excluding Japan.

*If you would like to order male mice, Please contact us.

Digital Resources:

hTNF-α Mouse
Mouse Models for
Drug Screening & Assessment
Cyagen Animal Models
Catalog - 2021

Why work with Cyagen?

With more than 15 years’ experience in genetic engineering, Cyagen offers a complete range of products and services to support the advancement of human disease research. Cyagen is committed to enabling the development of therapeutics for human diseases by providing one-stop research solutions – from custom rodent model generation and breeding, through therapeutic viral packaging and injection, and phenotype analysis to study disease mechanisms, target validation, drug screening and more.

  • 14+ years' experience in custom animal model generation
  • 78,000+ animal models generated and delivered worldwide
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