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ATF4-dependent fructolysis fuels brain tumorigenesis

ABSTRACT: ATF4-dependent fructolysis fuels brain tumorigenesis

PROVIDER: PRJNA779725 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR16920760_1.fastq.gz	Fastqsanger.gz
	SRR16920760_2.fastq.gz	Fastqsanger.gz
	SRR16920761_1.fastq.gz	Fastqsanger.gz
	SRR16920761_2.fastq.gz	Fastqsanger.gz
	SRR16920762_1.fastq.gz	Fastqsanger.gz

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Project description:Excessive consumption of fructose in the Western diet contributes to cancer development. However, it is still unclear how cancer cells coordinate glucose and fructose metabolism during tumor malignant progression. We demonstrate here that glioblastoma multiforme (GBM) cells switch their energy supply from glycolysis to fructolysis in response to glucose deprivation. Mechanistically, glucose deprivation induces expression of two essential fructolytic proteins GLUT5 and ALDOB through selectively activating translation of activating transcription factor 4 (ATF4). Functionally, genetic or pharmacological disruption of ATF4-dependent fructolysis significantly inhibits growth and colony formation of GBM cells in vitro and GBM growth in vivo. In addition, ATF4, GLUT5, and ALDOB levels positively correlate with each other in GBM specimens and are poor prognostic indicators in GBM patients. This work highlights ATF4-dependent fructolysis as a metabolic feature and a potential therapeutic target for GBM.

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