Expression and Prognostic Role of Glia Maturation Factor-γ in Gliomas

BackgroundGlia maturation factor-γ (GMFG) regulates actin cytoskeletal organization and promotes the invasion of cancer cells. However, its expression pattern and molecular function in gliomas have not been clearly defined.MethodsIn this study, public datasets comprising 2,518 gliomas samples were u...

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Main Authors: Junhui Liu, Xiaonan Zhu, Lun Gao, Rongxin Geng, Xiang Tao, Haitao Xu, Zhibiao Chen
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-06-01
Series:Frontiers in Molecular Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnmol.2022.906762/full
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author Junhui Liu
Junhui Liu
Xiaonan Zhu
Lun Gao
Rongxin Geng
Xiang Tao
Haitao Xu
Zhibiao Chen
author_facet Junhui Liu
Junhui Liu
Xiaonan Zhu
Lun Gao
Rongxin Geng
Xiang Tao
Haitao Xu
Zhibiao Chen
author_sort Junhui Liu
collection DOAJ
description BackgroundGlia maturation factor-γ (GMFG) regulates actin cytoskeletal organization and promotes the invasion of cancer cells. However, its expression pattern and molecular function in gliomas have not been clearly defined.MethodsIn this study, public datasets comprising 2,518 gliomas samples were used to explore GMFG expression and its correlation with malignancy in gliomas. Immunohistochemistry (IHC) staining was performed to determine the expression of GMFG in gliomas using an in-house cohort that contained 120 gliomas samples. Gene ontology enrichment analysis was conducted using the DAVID tool. The correlation between GMFG expression and immune cell infiltration was evaluated using TIMER, Tumor Immune Single-Cell Hub (TISCH) database, and IHC staining assays. The Kaplan–Meier analysis was performed to determine the prognostic role of GMFG and its association with temozolomide (TMZ) response in gliomas.ResultsThe GMFG expression was higher in gliomas compared with non-tumor brain tissues both in public datasets and in-house cohort. High expression of GMFG was significantly associated with WHO grade IV, IDH 1/2 wild-type, and mesenchymal (ME) subtypes. Bioinformatic prediction and IHC analysis revealed that GMFG expression obviously correlated with the macrophage marker CD163 in gliomas. Moreover, both lower grade glioma (LGG) and glioblastoma multiforme (GBM) patients with high GMFG expression had shorter overall survival than those with low GMFG expression. These results indicate that GMFG may be a therapeutic target for the treatment of such patients. Patients with low GMFG expression who received chemotherapy had a longer survival time than those with high GMFG expression. For patients who received ion radiotherapy (IR) only, the GMFG expression level had no effect on the overall survival neither in CGGA and TCGA datasets.ConclusionThe GMFG is a novel prognostic biomarker for patients with both LGG and GBM. Increased GMFG expression is associated with tumor-associated macrophages (TAMs) infiltration and with a bad response to TMZ treatment.
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spelling doaj.art-05533814b62f43f3b1f457c04c605a612022-12-22T00:32:02ZengFrontiers Media S.A.Frontiers in Molecular Neuroscience1662-50992022-06-011510.3389/fnmol.2022.906762906762Expression and Prognostic Role of Glia Maturation Factor-γ in GliomasJunhui Liu0Junhui Liu1Xiaonan Zhu2Lun Gao3Rongxin Geng4Xiang Tao5Haitao Xu6Zhibiao Chen7Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, ChinaCentral Laboratory, Renmin Hospital of Wuhan University, Wuhan, ChinaDepartment of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, ChinaDepartment of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, ChinaDepartment of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, ChinaDepartment of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, ChinaDepartment of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, ChinaDepartment of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, ChinaBackgroundGlia maturation factor-γ (GMFG) regulates actin cytoskeletal organization and promotes the invasion of cancer cells. However, its expression pattern and molecular function in gliomas have not been clearly defined.MethodsIn this study, public datasets comprising 2,518 gliomas samples were used to explore GMFG expression and its correlation with malignancy in gliomas. Immunohistochemistry (IHC) staining was performed to determine the expression of GMFG in gliomas using an in-house cohort that contained 120 gliomas samples. Gene ontology enrichment analysis was conducted using the DAVID tool. The correlation between GMFG expression and immune cell infiltration was evaluated using TIMER, Tumor Immune Single-Cell Hub (TISCH) database, and IHC staining assays. The Kaplan–Meier analysis was performed to determine the prognostic role of GMFG and its association with temozolomide (TMZ) response in gliomas.ResultsThe GMFG expression was higher in gliomas compared with non-tumor brain tissues both in public datasets and in-house cohort. High expression of GMFG was significantly associated with WHO grade IV, IDH 1/2 wild-type, and mesenchymal (ME) subtypes. Bioinformatic prediction and IHC analysis revealed that GMFG expression obviously correlated with the macrophage marker CD163 in gliomas. Moreover, both lower grade glioma (LGG) and glioblastoma multiforme (GBM) patients with high GMFG expression had shorter overall survival than those with low GMFG expression. These results indicate that GMFG may be a therapeutic target for the treatment of such patients. Patients with low GMFG expression who received chemotherapy had a longer survival time than those with high GMFG expression. For patients who received ion radiotherapy (IR) only, the GMFG expression level had no effect on the overall survival neither in CGGA and TCGA datasets.ConclusionThe GMFG is a novel prognostic biomarker for patients with both LGG and GBM. Increased GMFG expression is associated with tumor-associated macrophages (TAMs) infiltration and with a bad response to TMZ treatment.https://www.frontiersin.org/articles/10.3389/fnmol.2022.906762/fullGMFGgliomasprognosisimmunetemozolomide
spellingShingle Junhui Liu
Junhui Liu
Xiaonan Zhu
Lun Gao
Rongxin Geng
Xiang Tao
Haitao Xu
Zhibiao Chen
Expression and Prognostic Role of Glia Maturation Factor-γ in Gliomas
Frontiers in Molecular Neuroscience
GMFG
gliomas
prognosis
immune
temozolomide
title Expression and Prognostic Role of Glia Maturation Factor-γ in Gliomas
title_full Expression and Prognostic Role of Glia Maturation Factor-γ in Gliomas
title_fullStr Expression and Prognostic Role of Glia Maturation Factor-γ in Gliomas
title_full_unstemmed Expression and Prognostic Role of Glia Maturation Factor-γ in Gliomas
title_short Expression and Prognostic Role of Glia Maturation Factor-γ in Gliomas
title_sort expression and prognostic role of glia maturation factor γ in gliomas
topic GMFG
gliomas
prognosis
immune
temozolomide
url https://www.frontiersin.org/articles/10.3389/fnmol.2022.906762/full
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