1
|
Cai HB, Zhao MY, Li XH, Li YQ, Yu TH, Wang CZ, Wang LN, Xu WY, Liang B, Cai YP, Zhang F, Hong WM. Single cell sequencing revealed the mechanism of CRYAB in glioma and its diagnostic and prognostic value. Front Immunol 2024; 14:1336187. [PMID: 38274814 PMCID: PMC10808695 DOI: 10.3389/fimmu.2023.1336187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 12/26/2023] [Indexed: 01/27/2024] Open
Abstract
Background We explored the characteristics of single-cell differentiation data in glioblastoma and established prognostic markers based on CRYAB to predict the prognosis of glioblastoma patients. Aberrant expression of CRYAB is associated with invasive behavior in various tumors, including glioblastoma. However, the specific role and mechanisms of CRYAB in glioblastoma are still unclear. Methods We assessed RNA-seq and microarray data from TCGA and GEO databases, combined with scRNA-seq data on glioma patients from GEO. Utilizing the Seurat R package, we identified distinct survival-related gene clusters in the scRNA-seq data. Prognostic pivotal genes were discovered through single-factor Cox analysis, and a prognostic model was established using LASSO and stepwise regression algorithms. Moreover, we investigated the predictive potential of these genes in the immune microenvironment and their applicability in immunotherapy. Finally, in vitro experiments confirmed the functional significance of the high-risk gene CRYAB. Results By analyzing the ScRNA-seq data, we identified 28 cell clusters representing seven cell types. After dimensionality reduction and clustering analysis, we obtained four subpopulations within the oligodendrocyte lineage based on their differentiation trajectory. Using CRYAB as a marker gene for the terminal-stage subpopulation, we found that its expression was associated with poor prognosis. In vitro experiments demonstrated that knocking out CRYAB in U87 and LN229 cells reduced cell viability, proliferation, and invasiveness. Conclusion The risk model based on CRYAB holds promise in accurately predicting glioblastoma. A comprehensive study of the specific mechanisms of CRYAB in glioblastoma would contribute to understanding its response to immunotherapy. Targeting the CRYAB gene may be beneficial for glioblastoma patients.
Collapse
Affiliation(s)
- Hua-Bao Cai
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Meng-Yu Zhao
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xin-Han Li
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Yu-Qing Li
- Department of Pathology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- Department of Pathology, Anhui Medical University, Hefei, Anhui, China
| | - Tian-Hang Yu
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Cun-Zhi Wang
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Li-Na Wang
- School of Nursing, Anhui Medical University, Hefei, China
| | - Wan-Yan Xu
- School of Nursing, Anhui Medical University, Hefei, China
| | - Bo Liang
- Department of Dermatology and Venereology, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yong-Ping Cai
- Department of Pathology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- Department of Pathology, Anhui Medical University, Hefei, Anhui, China
| | - Fang Zhang
- School of Nursing, Anhui Medical University, Hefei, China
| | - Wen-Ming Hong
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
- Open Project of Key Laboratory of Dermatology, Ministry of Education, Anhui Medical University, Hefei, China
| |
Collapse
|