Yinjun He, Ming Zhu, Xuan Lai, Honghe Zhang, Weiqin Jiang
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引用次数: 0
Abstract
The interaction between tumor programmed death ligand 1 (PD-L1) and T-cell programmed cell death 1 (PD-1) has long been acknowledged as a mechanism for evading immune surveillance. Recent studies, however, have unveiled a more nuanced role of tumor-intrinsic PD-L1 in reprograming tumoral phenotypes. Preclinical models emphasize the synchronized effects of both intracellular and extracellular PD-L1 in promoting metastasis, with intricate interactions with the immune system. This review aims to summarize recent findings to elucidate the spatiotemporal heterogeneity of PD-L1 expression and the pro-metastatic roles of PD-L1 in the entire process of tumor metastasis. For example, PD-L1 regulates the epithelial-to-mesenchymal transition (EMT) process, facilitates the survival of circulating tumor cells, and induces the formation of immunosuppressive environments at pre-metastatic niches and metastatic sites. And the complexed and dynamic regulation process of PD-L1 for tumor metastasis is related to the spatiotemporal heterogeneity of PD-L1 expression and functions from tumor primary sites to various metastatic sites. This review extends the current understandings for the roles of PD-L1 in mediating tumor metastasis and provides new insights into therapeutic decisions in clinical practice.
期刊介绍:
Contemporary biomedical research is on the threshold of an era in which physiological and pathological processes can be analyzed in increasingly precise and mechanistic terms.The transformation of biology from a largely descriptive, phenomenological discipline to one in which the regulatory principles can be understood and manipulated with predictability brings a new dimension to the study of cancer and the search for effective therapeutic modalities for this disease. Cancer and Metastasis Reviews provides a forum for critical review and discussion of these challenging developments.
A major function of the journal is to review some of the more important and interesting recent developments in the biology and treatment of malignant disease, as well as to highlight new and promising directions, be they technological or conceptual. Contributors are encouraged to review their personal work and be speculative.