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Combination of PD-L1 and PVR determines sensitivity to PD-1 blockade

 Bo Ryeong Lee  ;  Sehyun Chae  ;  Jihyun Moon  ;  Myeong Joon Kim  ;  Hankyu Lee  ;  Hyuk Wan Ko  ;  Byoung Chul Cho  ;  Hyo Sup Shim  ;  Daehee Hwang  ;  Hye Ryun Kim  ;  Sang-Jun Ha 
 JCI INSIGHT, Vol.5(14) : 128633, 2020-07 
Journal Title
Issue Date
Cancer immunotherapy ; Immunology ; Oncology
Expression of immune checkpoint ligands (ICLs) is necessary to trigger the inhibitory signal via immune checkpoint receptors (ICRs) in exhausted T cells under tumor immune microenvironment. Nevertheless,to our knowledge, ICL expression profile in cancer patients has not been investigated. Using previously reported RNA-seq data sets, we found that expression of ICLs was patient specific but their coexpression can be patterned in non-small-cell lung cancers (NSCLCs). Since the expression of PD-L1 and poliovirus receptor (PVR) among various ICLs was independently regulated, we could stratify the patients who were treated with anti-PD-1 later into 4 groups according to the expression level of PD-L1 and PVR. Of interest, high PVR and low PVR expressions in PD-L1-expressing patients enriched nonresponders and responders to PD-1 blockade, respectively, helping in further selection of responders. Using a genetically engineered cancer model, we also found that PVR-deficient and PD-L1-sufficient tumor-bearing mice were highly sensitive to anti-PD-1 therapy, whereas PVR-sufficient and PD-L1-deficient tumor-bearing mice were resistant to anti-PD-1 therapy. Taken together, our study provides a concept that combinatorial expression patterns of PVR and PD-L1 are key determinants for PD-1 blockade and furthermore suggest a better therapeutic usage of immune checkpoint blockades (ICBs).
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hye Ryun(김혜련) ORCID logo https://orcid.org/0000-0002-1842-9070
Shim, Hyo Sup(심효섭) ORCID logo https://orcid.org/0000-0002-5718-3624
Cho, Byoung Chul(조병철) ORCID logo https://orcid.org/0000-0002-5562-270X
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