AACR 2022: Humanized PVRIG Mice: A Novel Tool for Evaluating Anti-PVRIG Immunotherapies

AACR 2022: Humanized PVRIG Mice: A Novel Tool for Evaluating Anti-PVRIG Immunotherapies

Conclusions

  • mRNA gene expression analysis by RT-PCR: Murine Pvrig mRNA was detected in splenocytes isolated from wild-type C57BL/6 (+/+) mice, while human PVRIG mRNA was detected in homozygous humanized B-hPVRIG (H/H) mice.
  • Protein expression analysis by western blot: Murine PVRIG protein was detected in wild-type C57BL/6 (+/+) mice, while human PVRIG protein was detected in homozygous humanized B-hPVRIG (H/H) mice.
  • Leukocyte cell subpopulation analysis by flow cytometry: Humanized B-hPVRIG mice show similar immune and blood cell composition compared to wild-type C57BL/6 mice.
  • In vivo efficacy evaluation: Anti-human PVRIG antibodies were effective in inhibiting MC38 tumor growth in humanized B-hPVRIG mice.

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