Tumor Suppression by PD-1/PD-L1 Interaction Blockage in Mice Model
| Author | Shima Salehi | en |
| Author | Hajarossadat Ghaderi | en |
| Author | Mahdi Habibi-Anbouhi | en |
| Author | Alireza Shoari | en |
| Author | Ayda Hassanzadeh Eskafi | en |
| Author | Alireza Sabouri | en |
| Author | Mohammad Hosseininejad-Chafi | en |
| Author | Arghavan Ashja Ardalan | en |
| Author | Behzad Ramezani | en |
| Author | Fatemeh Kazemi-Lomedasht | en |
| Author | Mahdi Behdani | en |
| Issued Date | 2022-12-31 | en |
| Abstract | Background: Overexpression of programmed cell death ligand 1 (PD-L1) in tumor cells and subsequent interaction with the programmed cell death protein 1 (PD-1) in tumor-infiltrating T cells cause an immune evasion of the tumor from cytotoxic T-cells. Therefore, inhibiting such interaction by a recombinant PD-1 can hinder tumor growth and extend the survival rate. Methods: The mouse extracellular domain of PD-1 (mPD-1) was expressed in E. coli BL21 (DE3) strain and purified using nickel affinity chromatography. The binding ability of the purified protein to human PD-L1 was studied using ELISA. Finally, the tumor-bearing mice were used to evaluate the potential antitumor effect. Results: The recombinant mPD-1 showed a significant binding capacity to human PD-L1 at the molecular level. The tumor size significantly decreased in the tumor-bearing mice after the intra-tumoral injections of mPD-1. Moreover, the survival rate increased significantly after eight weeks of monitoring. The histopathology revealed the necrosis in the tumor tissue of the control group compared to the mPD-1 received mice. Conclusions: Our outcomes propose that interaction blockade between PD-1 and PD-L1 is a promising approach for targeted tumor therapy. | en |
| DOI | https://doi.org/10.5812/ijpr-132329 | en |
| URI | https://brieflands.com/journals/ijpr/articles/132329 | en |
| Keyword | Programmed Cell Death Protein 1 | en |
| Keyword | Recombinant Protein | en |
| Keyword | Tumor Growth Inhibition | en |
| Keyword | Immune Evasion | en |
| Publisher | Brieflands | en |
| Title | Tumor Suppression by PD-1/PD-L1 Interaction Blockage in Mice Model | en |
| Type | Research Article | en |