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Metagenomics and transcriptomics analysis of aspartame's impact on gut microbiota and glioblastoma progression in a mouse model

文献类型: 外文期刊

作者: Meng, Kaikai 1 ; Bao, Yi 3 ; Chen, Ganlin 1 ; Qu, Junru 1 ; Liang, Shuaiyi 6 ; An, Sanqi 3 ; Chen, Yang 7 ; Liu, Xinli 7 ; Fu, Xuanjian 7 ;

作者机构: 1.Guangxi Subtrop Crops Res Inst, Guangxi Key Lab Qual & Safety Control Subtrop Frui, Nanning 530001, Peoples R China

2.Minist Agr & Rural Affairs, Guangxi Subtrop Crops Res Inst, Key Lab Qual & Safety Control Subtrop Fruit & Vege, Nanning 530001, Peoples R China

3.Guangxi Med Univ, Sch Publ Hlth, Guangxi Key Lab AIDS Prevent & Treatment, Nanning 530021, Guangxi, Peoples R China

4.Guangxi Med Univ, Guangxi Coll & Univ Key Lab Prevent & Control High, Sch Publ Hlth, Nanning 530021, Guangxi, Peoples R China

5.Guangxi Med Univ, Life Sci Inst, Guangxi Engn Ctr Organoids & Organ Chips Highly Pa, Nanning 530021, Guangxi, Peoples R China

6.Anjin Biotechnol Co Ltd, Dept Bioinformat, Guangzhou 510000, Peoples R China

7.First Peoples Hosp Foshan, Dept Orthopaed, Foshan 528000, Guangdong, Peoples R China

关键词: Aspartame; Metagenomics; RNA; N6-methyladenosine; Glioblastoma

期刊名称:SCIENTIFIC REPORTS ( 影响因子:3.9; 五年影响因子:4.3 )

ISSN: 2045-2322

年卷期: 2025 年 15 卷 1 期

页码:

收录情况: SCI

摘要: Aspartame, a widely used artificial sweetener, has been extensively studied for its potential health effects. Emerging evidence suggests that aspartame intake may directly impact the composition and function of the intestinal microbiota, which could subsequently influence the risk, progression, and treatment of glioblastoma multiforme (GBM) within the tumor microenvironment. However, it remains unclear whether aspartame intake affects intestinal flora, gene expression, and epigenetic regulation during tumor progression. To address these gaps in knowledge, we conducted a comprehensive metagenomics and transcriptomics analysis of aspartame's impact on gut microbiota and glioblastoma progression in a mouse model. Using a well-established mouse model and a rigorous metagenomics and transcriptomics approach, our results demonstrated that although the aspartame diet did not significantly affect tumor growth, it induced changes in the composition of the gut microbiota, particularly a decrease in the relative abundance of the Rikenellaceae family. Additionally, key N6-methyladenosine (m6A)-regulated genes, such as cyclin-dependent kinase inhibitor 1A (CDKN1A), MYC (myelocytomatosis) oncogene, and transforming growth factor-beta (TGFB1), were significantly upregulated in GBM tumors exposed to aspartame. Notably, the expression of TGFB1 (transforming growth factor-beta) suggested a critical role in the progression of GBM mediated by aspartame-induced m6A modifications. Our integrative analysis offered novel perspectives on the intricate interplay between dietary aspartame intake, gut microbiota, and tumor biology.

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