Integrated analysis of bulk and single-cell RNA sequencing reveals the impact of nicotinamide and tryptophan metabolism on glioma prognosis and immunotherapy sensitivity.


Journal

BMC neurology
ISSN: 1471-2377
Titre abrégé: BMC Neurol
Pays: England
ID NLM: 100968555

Informations de publication

Date de publication:
28 Oct 2024
Historique:
received: 18 06 2024
accepted: 18 10 2024
medline: 29 10 2024
pubmed: 29 10 2024
entrez: 29 10 2024
Statut: epublish

Résumé

Nicotinamide and tryptophan metabolism play important roles in regulating tumor synthesis metabolism and signal transduction functions. However, their comprehensive impact on the prognosis and the tumor immune microenvironment of glioma is still unclear. The purpose of this study was to investigate the association of nicotinamide and tryptophan metabolism with prognosis and immune status of gliomas and to develop relevant models for predicting prognosis and sensitivity to immunotherapy in gliomas. Bulk and single-cell transcriptome data from TCGA, CGGA and GSE159416 were obtained for this study. Gliomas were classified based on nicotinamide and tryptophan metabolism, and PPI network associated with differentially expressed genes was established. The core genes were identified and the risk model was established by machine learning techniques, including univariate Cox regression and LASSO regression. Then the risk model was validated with data from the CGGA. Finally, the effects of genes in the risk model on the biological behavior of gliomas were verified by in vitro experiments. The high nicotinamide and tryptophan metabolism is associated with poor prognosis and high levels of immune cell infiltration in glioma. Seven of the core genes related to nicotinamide and tryptophan metabolism were used to construct a risk model, and the model has good predictive ability for prognosis, immune microenvironment, and response to immune checkpoint therapy of glioma. We also confirmed that high expression of TGFBI can lead to an increased level of migration, invasion, and EMT of glioma cells, and the aforementioned effect of TGFBI can be reduced by FAK inhibitor PF-573,228. Our study evaluated the effects of nicotinamide and tryptophan metabolism on the prognosis and tumor immune microenvironment of glioma, which can help predict the prognosis and sensitivity to immunotherapy of glioma.

Sections du résumé

BACKGROUND BACKGROUND
Nicotinamide and tryptophan metabolism play important roles in regulating tumor synthesis metabolism and signal transduction functions. However, their comprehensive impact on the prognosis and the tumor immune microenvironment of glioma is still unclear. The purpose of this study was to investigate the association of nicotinamide and tryptophan metabolism with prognosis and immune status of gliomas and to develop relevant models for predicting prognosis and sensitivity to immunotherapy in gliomas.
METHODS METHODS
Bulk and single-cell transcriptome data from TCGA, CGGA and GSE159416 were obtained for this study. Gliomas were classified based on nicotinamide and tryptophan metabolism, and PPI network associated with differentially expressed genes was established. The core genes were identified and the risk model was established by machine learning techniques, including univariate Cox regression and LASSO regression. Then the risk model was validated with data from the CGGA. Finally, the effects of genes in the risk model on the biological behavior of gliomas were verified by in vitro experiments.
RESULTS RESULTS
The high nicotinamide and tryptophan metabolism is associated with poor prognosis and high levels of immune cell infiltration in glioma. Seven of the core genes related to nicotinamide and tryptophan metabolism were used to construct a risk model, and the model has good predictive ability for prognosis, immune microenvironment, and response to immune checkpoint therapy of glioma. We also confirmed that high expression of TGFBI can lead to an increased level of migration, invasion, and EMT of glioma cells, and the aforementioned effect of TGFBI can be reduced by FAK inhibitor PF-573,228.
CONCLUSIONS CONCLUSIONS
Our study evaluated the effects of nicotinamide and tryptophan metabolism on the prognosis and tumor immune microenvironment of glioma, which can help predict the prognosis and sensitivity to immunotherapy of glioma.

Identifiants

pubmed: 39468708
doi: 10.1186/s12883-024-03924-5
pii: 10.1186/s12883-024-03924-5
doi:

Substances chimiques

Tryptophan 8DUH1N11BX
Niacinamide 25X51I8RD4

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

419

Informations de copyright

© 2024. The Author(s).

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Auteurs

Sen Wang (S)

Department of Neurosurgery, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.

Shen Gao (S)

School of Medical Technology, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China.
Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China.

Shaochong Lin (S)

School of Medicine, Nankai University, Tianjin, 300071, China.

Xiaofeng Fang (X)

Department of Neurosurgery, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.

Haopeng Zhang (H)

Department of Neurosurgery, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.

Man Qiu (M)

Department of Neurosurgery, Xinyang Central Hospital, Xinyang, 464000, China.

Kai Zheng (K)

Department of Neurosurgery, Xianyang First People's Hospital, Xianyang, 712000, China.

Yupeng Ji (Y)

Department of Cardiovascular Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.

Baijun Xiao (B)

Department of Neurosurgery, Pingshan People's Hospital, Shenzhen, 518118, China.

Xiangtong Zhang (X)

Department of Neurosurgery, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China. zgxgtg@sina.com.

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