Molecular and clinical characterization of ANG expression in gliomas and its association with tumor-related immune response
BackgroundAngiogenin (ANG) has been widely reported as a crucial molecular regulator in multiple malignancies. However, its role in gliomagenesis remains unclear. This study aimed to investigate the molecular and clinical characterization of ANG expression at transcriptome level and the association...
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Frontiers Media S.A.
2023-10-01
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| Series: | Frontiers in Medicine |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmed.2023.1044402/full |
| _version_ | 1797656079422717952 |
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| author | Jin Wang Aijun Shan Fei Shi Qijun Zheng |
| author_facet | Jin Wang Aijun Shan Fei Shi Qijun Zheng |
| author_sort | Jin Wang |
| collection | DOAJ |
| description | BackgroundAngiogenin (ANG) has been widely reported as a crucial molecular regulator in multiple malignancies. However, its role in gliomagenesis remains unclear. This study aimed to investigate the molecular and clinical characterization of ANG expression at transcriptome level and the association with glioma-related immune response.MethodsA total of 301 glioma samples with mRNA microarray data (CGGA301) was obtained from the official website of CGGA project for yielding preliminary results, followed by validation in two independent RNAseq datasets, including TCGA with 697 samples and CGGA325 with 325 patients. Moreover, CGGA single-cell RNAseq (scRNAseq) data were analyzed to identify differential and dynamic ANG expression in different cells. Immunohistochemistry was performed to evaluate ANG protein expression across different WHO grades in a tissue microarray (TMA). Figure generation and statistical analysis were conducted using R software.ResultsANG expression was associated with clinical features, malignant phenotypes, and genomic alterations. Based on significantly correlated genes of ANG, subsequent gene ontology (GO) and gene set enrichment analysis (GSEA) concordantly pointed to the significant association of ANG in immune-related biological processes. Moreover, ANG showed robust correlations with canonical immune checkpoint molecules, including PD1 signaling, CTLA4, TIM3, and B7H3. Gene sets variation analysis (GSVA) found that ANG was particularly associated with activities of macrophages and antigen presentation cells (APCs) in both LGG and GBM across different datasets. Furthermore, the higher-ANG milieu seemed to recruit monocyte–macrophage lineage and dendritic cells into the glioma microenvironment. According to scRNAseq analysis, ANG was mainly expressed by neoplastic cells and tumor-associated macrophages (TAMs) and was correlated with the initiation and progression of tumor cells and the polarization of TAMs. Finally, Kaplan–Meier plots demonstrated that higher expression of ANG was significantly correlated with shorter survival in gliomas. Cox regression analysis further confirmed ANG as an independent predictor of prognosis for gliomas of all three datasets.ConclusionANG is significantly correlated with a range of malignant and aggressive characteristics in gliomas and reveals considerable prognostic value for glioma patients. ANG seems to be primarily associated with immune activities of macrophages and APCs in gliomas. Furthermore, ANG is mainly expressed in neoplastic cells and TAMs and is involved in the initiation and progression of neoplastic cells as well as macrophage polarization. |
| first_indexed | 2024-03-11T17:24:05Z |
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| id | doaj.art-c83e96fa50ec4d7c9a80757f89e37a12 |
| institution | Directory Open Access Journal |
| issn | 2296-858X |
| language | English |
| last_indexed | 2024-03-11T17:24:05Z |
| publishDate | 2023-10-01 |
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| series | Frontiers in Medicine |
| spelling | doaj.art-c83e96fa50ec4d7c9a80757f89e37a122023-10-19T07:59:50ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2023-10-011010.3389/fmed.2023.10444021044402Molecular and clinical characterization of ANG expression in gliomas and its association with tumor-related immune responseJin Wang0Aijun Shan1Fei Shi2Qijun Zheng3Department of Emergency, Shenzhen People’s Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, ChinaDepartment of Emergency, Shenzhen People’s Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, ChinaDepartment of Emergency, Shenzhen People’s Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, ChinaDepartment of Cardiovascular Surgery, Shenzhen People’s Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, ChinaBackgroundAngiogenin (ANG) has been widely reported as a crucial molecular regulator in multiple malignancies. However, its role in gliomagenesis remains unclear. This study aimed to investigate the molecular and clinical characterization of ANG expression at transcriptome level and the association with glioma-related immune response.MethodsA total of 301 glioma samples with mRNA microarray data (CGGA301) was obtained from the official website of CGGA project for yielding preliminary results, followed by validation in two independent RNAseq datasets, including TCGA with 697 samples and CGGA325 with 325 patients. Moreover, CGGA single-cell RNAseq (scRNAseq) data were analyzed to identify differential and dynamic ANG expression in different cells. Immunohistochemistry was performed to evaluate ANG protein expression across different WHO grades in a tissue microarray (TMA). Figure generation and statistical analysis were conducted using R software.ResultsANG expression was associated with clinical features, malignant phenotypes, and genomic alterations. Based on significantly correlated genes of ANG, subsequent gene ontology (GO) and gene set enrichment analysis (GSEA) concordantly pointed to the significant association of ANG in immune-related biological processes. Moreover, ANG showed robust correlations with canonical immune checkpoint molecules, including PD1 signaling, CTLA4, TIM3, and B7H3. Gene sets variation analysis (GSVA) found that ANG was particularly associated with activities of macrophages and antigen presentation cells (APCs) in both LGG and GBM across different datasets. Furthermore, the higher-ANG milieu seemed to recruit monocyte–macrophage lineage and dendritic cells into the glioma microenvironment. According to scRNAseq analysis, ANG was mainly expressed by neoplastic cells and tumor-associated macrophages (TAMs) and was correlated with the initiation and progression of tumor cells and the polarization of TAMs. Finally, Kaplan–Meier plots demonstrated that higher expression of ANG was significantly correlated with shorter survival in gliomas. Cox regression analysis further confirmed ANG as an independent predictor of prognosis for gliomas of all three datasets.ConclusionANG is significantly correlated with a range of malignant and aggressive characteristics in gliomas and reveals considerable prognostic value for glioma patients. ANG seems to be primarily associated with immune activities of macrophages and APCs in gliomas. Furthermore, ANG is mainly expressed in neoplastic cells and TAMs and is involved in the initiation and progression of neoplastic cells as well as macrophage polarization.https://www.frontiersin.org/articles/10.3389/fmed.2023.1044402/fullANGangiogeningliomaimmune responseprognosis |
| spellingShingle | Jin Wang Aijun Shan Fei Shi Qijun Zheng Molecular and clinical characterization of ANG expression in gliomas and its association with tumor-related immune response Frontiers in Medicine ANG angiogenin glioma immune response prognosis |
| title | Molecular and clinical characterization of ANG expression in gliomas and its association with tumor-related immune response |
| title_full | Molecular and clinical characterization of ANG expression in gliomas and its association with tumor-related immune response |
| title_fullStr | Molecular and clinical characterization of ANG expression in gliomas and its association with tumor-related immune response |
| title_full_unstemmed | Molecular and clinical characterization of ANG expression in gliomas and its association with tumor-related immune response |
| title_short | Molecular and clinical characterization of ANG expression in gliomas and its association with tumor-related immune response |
| title_sort | molecular and clinical characterization of ang expression in gliomas and its association with tumor related immune response |
| topic | ANG angiogenin glioma immune response prognosis |
| url | https://www.frontiersin.org/articles/10.3389/fmed.2023.1044402/full |
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