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PSRC1 Regulated by DNA Methylation Is a Novel Target for LGG Immunotherapy

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Abstract

Proline and serine–rich coiled-coil 1 (PSRC1) has been reported to function as an oncogene in several cancers by regulating mitosis, while there are few reports on the role of PSRC1 in lower-grade glioma (LGG). Thus, this study collected 22 samples and 1126 samples from our institution and several databases, respectively, to explore the function of PSRC1 in LGG. First, the analysis of clinical characteristics showed that PSRC1 was always highly expressed in more malignant clinical characteristics of LGG, such as higher WHO grade, recurrence type, and IDH wild type. Second, the prognosis analysis revealed that the high expression of PSRC1 was an independent risk factor contributing to the shorter overall survival of LGG patients. Third, the analysis of DNA methylation showed that the expression of PSRC1 was associated with its 8 DNA methylation sites, overall negatively regulated by its DNA methylation level in LGG. Fourth, the analysis of immune correlation revealed that the expression of PSRC1 was positively correlated with the infiltration of 6 immune cells and the expression of 4 well-known immune checkpoints in LGG, respectively. Finally, co-expression analysis and KEGG analysis showed the 10 genes most related to PSRC1 and the signaling pathways involved by PSRC1 in LGG, respectively, such as MAPK signaling pathway and focal adhesion. In conclusion, this study identified the pathogenic role of PSRC1 in the pathological progression of LGG, expanding the molecular understanding of PSRC1, and provided a biomarker and potential immunotherapeutic target for the treatment of LGG.

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Data Availability

The data set analyzed during the current study is available in the TCGA database (https://cancergenome.nih.gov/) and the CGGA database (http://www.cgga.org.cn/) and the GEO database (https://www.ncbi.nlm.nih.gov/geo/). Besides, the datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

Thanks to Henan Provincial People's Hospital for supporting this study.

Funding

This work was supported by the Key Project of Henan Natural Science Foundation (232300421123) and the Tackling key problems of science and technology in Henan Province (222102310002, 232102311159) and the Henan Postdoctoral Fund (2021) and the Medical Science and technology research plan in Henan Province (LHGJ20210013) and the Project of Action for Postgraduate Training Innovation and Quality Improvement of Henan University (Grant ID: SYLYC2022174). The funding source was not involved in collecting, analyzing and interpreting the data.

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Contributions

All authors contributed to the study conception and design. Zhendong Liu, Wenjia Liang and Qingyun Zhu contributed equally to this work and shared first authorship; Zhendong Liu and Yanzheng Gao designed the research; Wenjia Liang, Xingbo Cheng and Rongjun Qian performed the research; Wenjia Liang and Qingyun Zhu wrote the paper. All authors read and approved the final manuscript.

Corresponding authors

Correspondence to Rongjun Qian or Yanzheng Gao.

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Competing interests

The authors declare no competing interests.

Ethics Approval and Consent to Participate

The study was conducted according to the guidelines of the Declaration of Helsinki and approved by the ethics committee of Henan Provincial People's hospital (2020, ethical review No. 107). Informed consent was obtained from all subjects involved in the study.

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The authors declare no competing interests.

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Liu, Z., Liang, W., Zhu, Q. et al. PSRC1 Regulated by DNA Methylation Is a Novel Target for LGG Immunotherapy. J Mol Neurosci 73, 516–528 (2023). https://doi.org/10.1007/s12031-023-02133-y

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  • DOI: https://doi.org/10.1007/s12031-023-02133-y

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