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RNA-seq and H3K27ac ChIP-seq of Y1 cells treated with FGF-2

ABSTRACT: RNA-seq and H3K27ac ChIP-seq of Y1 cells treated with FGF-2

PROVIDER: PRJNA650211 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12366042_1.fastq.gz	Fastqsanger.gz
	SRR12366042_2.fastq.gz	Fastqsanger.gz
	SRR12366043_1.fastq.gz	Fastqsanger.gz
	SRR12366043_2.fastq.gz	Fastqsanger.gz
	SRR12366044_1.fastq.gz	Fastqsanger.gz

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RNA-seq and H3K27ac ChIP-seq of Y1 cells treated with FGF-2

Project description:In addition to driving cell cycle progression, oncogenes may also trigger pathways leading to senescence, thereby inhibiting the growth of tumorigenic cells. Paradoxically, Y1 cells, which carry an amplification of Ras, become senescent after treatment with the mitogen FGF-2. To understand how FGF-2 promotes senescence, we profiled the epigenome, transcriptome, proteome, and phospho-proteome of Y1 cells stimulated with FGF-2. FGF-2 caused delayed acetylation of histone H4 and higher levels of H3K27me3. Sequencing analysis revealed decreased expression of cell cycle-related genes with concomitant loss of H3K27ac. In contrast, FGF-2 promoted the expression of p21 and various cytokines and MAPK-related genes. Nuclear envelope proteins, particularly lamin B1, displayed increased phosphorylation in response to FGF-2. Proteome analysis suggested alterations in cellular metabolism, as evident by modulated expression of enzymes involved in purine biosynthesis, tRNA aminoacylation, and the TCA cycle. Altogether, the response of Y1 cells to FGF-2 is consistent with oncogene-induced senescence. We propose that Y1 cells enter senescence due to deficient cyclin expression and high levels of p21, which may stem from DNA damage or TGFb signaling.

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Profiling of Y1 cells treated with FGF-2 reveals parallels with oncogene-induced senescence

Project description:Paradoxically, oncogenes that drive cell cycle progression may also trigger pathways leading to senescence, thereby inhibiting the growth of tumorigenic cells. Along these lines, Y1 cells, which carry an amplification of Ras, become senescent after treatment with the mitogen FGF-2. To understand how FGF-2 promotes senescence, we profiled the epigenome, transcriptome, proteome, and phospho-proteome of Y1 cells stimulated with FGF-2. FGF-2 caused delayed acetylation of histone H4 and higher levels of H3K27me3. Sequencing analysis revealed decreased expression of cell cycle-related genes with concomitant loss of H3K27ac. In contrast, FGF-2 promoted the expression of p21, various cytokines, and MAPK-related genes. Nuclear envelope proteins, particularly lamin B1, displayed increased phosphorylation in response to FGF-2. Proteome analysis suggested alterations in cellular metabolism, as evident by modulated expression of enzymes involved in purine biosynthesis, tRNA aminoacylation, and the TCA cycle. Altogether, the response of Y1 cells to FGF-2 is consistent with oncogene-induced senescence. We propose that Y1 cells enter senescence due to deficient cyclin expression and high levels of p21, which may stem from DNA damage or TGFb signaling.

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