Primary microcephaly gene CENPE is a novel biomarker and potential therapeutic target for non-WNT/non-SHH medulloblastoma

Frontiers in Immunology

Immunology

Chengyin Lin¹  Hansong Sheng²  Zhenkai Sun²  Wei Wen²  Huangyi Fang²  Jian Lin³  Yusong Zhang⁴ 

[1]Wenzhou Medical University, Wenzhou, China

[2]Wenzhou Medical University, Wenzhou, China

[3]Department of Neurosurgery, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China

[4]Wenzhou Medical University, Wenzhou, China

[5]Department of Neurosurgery, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China

[6]The Key Laboratory of Pediatric Hematology and Oncology Diseases of Wenzhou, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China

[7]Wenzhou Medical University, Wenzhou, China

[8]Department of Surgery, The First People’s Hospital of Jiashan, Jiaxing, China

关键词: CENPE;    non-WNT/non-SHH medulloblastoma;    microcephaly;    bioinformatics analysis;    cell cycle;    p53;   

DOI  :  10.3389/fimmu.2023.1227143

 received in 2023-05-22, accepted in 2023-07-17,  发布年份 2023

来源: Frontiers

【 摘 要 】

BackgroundNon-WNT/non-SHH medulloblastoma (MB) is one of the subtypes with the highest genetic heterogeneity in MB, and its current treatment strategies have unsatisfactory results and significant side effects. As a member of the centromere protein (CENP) family, centromeric protein E (CENPE) is a microtubule plus-end-directed kinetochore protein. Heterozygous mutations in CENPE can leads to primary microcephaly syndrome. It has been reported that CENPE is upregulated in MB, but its role in MB development is still unknown.MethodsWe downloaded the relevant RNA seq data and matched clinical information from the GEO database. Bioinformatics analysis includes differential gene expression analysis, Kaplan-Meier survival analysis, nomogram analysis, ROC curve analysis, immune cell infiltration analysis, and gene function enrichment analysis. Moreover, the effects of CENPE expression on cell proliferation, cell cycle, and p53 signaling pathway of non-WNT/non-SHH MB were validated using CENPE specific siRNA in vitro experiments.ResultsCompared with normal tissues, CENPE was highly expressed in MB tissues and served as an independent prognostic factor for survival in non-WNT/non-SHH MB patients. The nomogram analysis and ROC curve further confirmed these findings. At the same time, immune cell infiltration analysis showed that CENPE may participate in the immune response and tumor microenvironment (TME) of non-WNT/non-SHH MB. In addition, gene enrichment analysis showed that CENPE was closely related to the cell cycle and p53 pathway in non-WNT/non-SHH MB. In vitro experimental validation showed that knockdown of CENPE inhibited cell proliferation by activating the p53 signaling pathway and blocking the cell cycle.ConclusionThe expression of CENPE in non-WNT/non-SHH MB was positively correlated with poor prognosis. CENPE may affect tumor progression by regulating cell cycle, p53 pathway, and immune infiltration. Hence, CENPE is highly likely a novel biomarker and potential therapeutic target for non-WNT/non-SHH MB.

【 授权许可】

Unknown   
Copyright © 2023 Fang, Zhang, Lin, Sun, Wen, Sheng and Lin