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- Title
Role of Nurr1 in Carcinogenesis and Tumor Immunology: A State of the Art Review.
- Authors
Wan, Peter Kok-Ting; Siu, Michelle Kwan-Yee; Leung, Thomas Ho-Yin; Mo, Xue-Tang; Chan, Karen Kar-Loen; Ngan, Hextan Yuen-Sheung
- Abstract
Simple Summary: Nuclear receptor related-1 protein (Nurr1) emerges as a therapeutic target in multiple malignancies and immunotherapies. Previous studies have highlighted its association with clinicopathological parameters, tumorigenesis and therapeutic resistance in cancers. In addition, recent studies unraveled its contribution to the suppression of antitumor immunity, suggesting that inhibition of Nurr1 is a potential method to repress cancer aggressiveness and disrupt tumor immune tolerance. In line with this evidence, the present review provides the roles of Nurr1 in tumor progression and the associated underlying molecular mechanisms. Moreover, the significance of Nurr1 in promoting immune tolerance and potential strategies for Nurr1 inhibition are highlighted. Nuclear receptor related-1 protein (Nurr1), coded by an early response gene, is involved in multiple cellular and physiological functions, including proliferation, survival, and self-renewal. Dysregulation of Nurr1 has been frequently observed in many cancers and is attributed to multiple transcriptional and post-transcriptional mechanisms. Besides, Nurr1 exhibits extensive crosstalk with many oncogenic and tumor suppressor molecules, which contribute to its potential pro-malignant behaviors. Furthermore, Nurr1 is a key player in attenuating antitumor immune responses. It not only potentiates immunosuppressive functions of regulatory T cells but also dampens the activity of cytotoxic T cells. The selective accessibility of chromatin by Nurr1 in T cells is closely associated with cell exhaustion and poor efficacy of cancer immunotherapy. In this review, we summarize the reported findings of Nurr1 in different malignancies, the mechanisms that regulate Nurr1 expression, and the downstream signaling pathways that Nurr1 employs to promote a wide range of malignant phenotypes. We also give an overview of the association between Nurr1 and antitumor immunity and discuss the inhibition of Nurr1 as a potential immunotherapeutic strategy.
- Subjects
PROTEIN metabolism; CARCINOGENESIS; CELLULAR signal transduction; IMMUNITY; IMMUNOTHERAPY; PROTEINS; T cells; TUMORS; PHENOTYPES; CHEMICAL inhibitors
- Publication
Cancers, 2020, Vol 12, Issue 10, p3044
- ISSN
2072-6694
- Publication type
Article
- DOI
10.3390/cancers12103044