B-h4-1BB/hCD40 mice

C57BL/6-Tnfrsf9tm1(TNFRSF9)Bcgen Cd40tm1(CD40)Bcgen/Bcgen • 121212

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B-h4-1BB/hCD40 mice

Product nameB-h4-1BB/hCD40 mice
Catalog number121212
Strain nameC57BL/6-Tnfrsf9tm1(TNFRSF9)Bcgen Cd40tm1(CD40)Bcgen/Bcgen
Strain backgroundC57BL/6
NCBI gene ID21942,958
Aliases4-1BB; CD137;Bp50, CDW40, TNFRSF5, p50

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  • Phenotypic analysis
  • Efficacy

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      Protein expression analysis
      Strain specific CD40 and 4-1BB expression analysis in homozygous B-h4-1BB/hCD40 mice by flow cytometry. Splenocytes were collected from wild-type mice (+/+) and homozygous B-h4-1BB/hCD40 mice (H/H) stimulated with anti-CD3ε in vivo (7.5 μg/mice for 24 hours, i.p.), and analyzed by flow cytometry with species-specific anti-CD40 antibody and species-specific anti-4-1BB antibody . Mouse CD40 and 4-1BB were detectable in wild-type mice. Human CD40 and 4-1BB were exclusively detectable in homozygous B-h4-1BB/hCD40 mice (H/H) but not in wild-type mice.
      Combination therapy of anti-human 4-1BB antibody and anti-human CD40 antibody

      Antitumor activity of anti-human 4-1BB antibody combined with anti-human CD40 antibody in B-h4-1BB/hCD40 mice. (A) Anti-human 4-1BB antibody (in house) combined with anti-human CD40 antibody (in house) inhibited MC38 tumor growth in B-h4-1BB/hCD40 mice. Murine colon cancer MC38 cells were subcutaneously implanted into homozygous B-h4-1BB/hCD40 mice (female, 6-8 week-old, n=5). Mice were grouped when tumor volume reached approximately 400 mm3, at which time they were treated with h4-1BB and hCD40 antibodies. (B) Body weight changes during treatment. As shown in panel A, combination of h4-1BB and hCD40 antibodies were more efficacious in controlling tumor growth in B-h4-1BB/hCD40 mice. B-h4-1BB/hCD40 mice provide a powerful preclinical model for in vivo evaluation of anti-human 4-1BB and CD40 antibodies. Values are expressed as mean ± SEM.