Design of the hPD‑1/hTIM3 mouse
The double-humanized PD-1 and TIM3 mouse model (hPD-1/hTIM3) was generated by intercrossing hPD-1 and hTIM3 mice.
hPD-1 has been developed by inserting, within the mouse PD-1 locus, a chimeric PD-1 with a human extracellular domain, a murine transmembrane domain and a murine intracellular domain.
The design of the TIM3 humanized model, developed by Knockin at the mouse TIM3 locus, enables the expression of a chimeric TIM3 with a human extracellular domain, a murine transmembrane domain and a murine intracellular domain.
hPD-1/hTIM3 features
- The PD-1 and TIM3 extracellular domains are entirely humanized
- Preservation of the target-ligand interaction
- Fully functional mouse immune system
- Lack of expression of the murine target gene, thus avoiding cross-reactivity