Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
Date (from‐to) : 2019/04 -2022/03
Author : Takahashi Satoru
The aim is to discover a new tumor immune evasion mechanism in castration-resistant prostate cancer (CRPC). Through microarray analysis, we extracted five genes, CD81, Ccl2, Cx3cl1, Nradd, and Tmem252, highly expressed in rat CRPC PLS10 cells, that can be engrafted in normal immunocompetent rats. Among these, CD81, Ccl2, and Cx3cl1 were transfected into rat CRPC PLS30 cells, which cannot survive in normal immunocompetent rats and orthotopically transplanted, but no tumor formation was observed in any of them. Next, we performed spatial transcriptome gene expression analysis in vivo and confirmed that Pmepa1 was highly expressed in PLS10. We have established the Pmepa1-introduced PLS30 strain and are conducting orthotopic transplant experiments in rats.