Abstract
Immune checkpoint blockade has demonstrated significant anti-tumor immunity in an array of cancer types, yet the underlying regulatory mechanism of it is still obscure, and many problems remain to be solved. As an inhibitory costimulatory signal of T-cells, the programmed cell death 1 (PD-1)/programmed cell death ligand 1 (PD-L1) pathway can paralyze T-cells at the tumor site, enabling the immune escape of tumor cells. Although many antibodies targeting PD-1/PD-L1 have been developed to block their interaction for the treatment of cancer, the reduced response rate and resistance to the therapies call for further comprehension of this pathway in the tumor microenvironment. MicroRNAs (miRNAs) and long noncoding RNAs (lncRNAs) are two main types of noncoding RNAs that play critical parts in the regulation of immune response in tumorigenesis, including the PD-1/PD-L1 pathway. Here we summarize the most recent studies on the control of this pathway by noncoding RNAs in cancer and hopefully will offer new insights into immune checkpoint blockade therapies.
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Data Availability
The datasets analyzed in this article are available from the corresponding author on reasonable request.
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Our work is supported by The National Natural Science Foundation of China grants 81572122 to Shanghai Sixth People’s Hospital, affiliated to Shanghai Jiao Tong University.
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Ding, L., Lu, S. & Li, Y. Regulation of PD-1/PD-L1 Pathway in Cancer by Noncoding RNAs. Pathol. Oncol. Res. 26, 651–663 (2020). https://doi.org/10.1007/s12253-019-00735-9
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DOI: https://doi.org/10.1007/s12253-019-00735-9