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Interactome of ferroptosis pathways genes

ABSTRACT: We conducted a proteomic interactome analysis of well-known regulators of ferroptosis, ACSL4, LPCAT3, ALOX12, ALOX15, PEBP1, NCOA4, GCH1, FSP1, DHODH, SLC7A11, GCLC, GCLM, GSS, and GPX4. Take LPCAT3 as an example, we uncovered an opposing role of its binding protein CEPT1 in suppressing ferroptosis.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Homo Sapiens (human)

SUBMITTER: Zhen Chen

LAB HEAD: Junjie Chen

PROVIDER: PXD035146 | Pride | 2024-10-17

REPOSITORIES: Pride

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			Action	DRS
	03012020_XG_FSP1_1.msf	Msf
	03012020_XG_FSP1_1.raw	Raw
	03012020_XG_FSP1_2.msf	Msf
	03012020_XG_FSP1_2.raw	Raw
	08212018_ACSL4_1.msf	Msf

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Publications

Proteomic analysis of ferroptosis pathways reveals a role of CEPT1 in suppressing ferroptosis.

Liu Xiaoguang X Chen Zhen Z Yan Yuelong Y Zandkarimi Fereshteh F Nie Litong L Li Qidong Q Horbath Amber A Olszewski Kellen K Kondiparthi Lavanya L Mao Chao C Lee Hyemin H Zhuang Li L Poyurovsky Masha M Stockwell Brent R BR Chen Junjie J Gan Boyi B

Protein & cell 20240901 9

Ferroptosis has been recognized as a unique cell death modality driven by excessive lipid peroxidation and unbalanced cellular metabolism. In this study, we established a protein interaction landscape for ferroptosis pathways through proteomic analyses, and identified choline/ethanolamine phosphotransferase 1 (CEPT1) as a lysophosphatidylcholine acyltransferase 3 (LPCAT3)-interacting protein that regulates LPCAT3 protein stability. In contrast to its known role in promoting phospholipid synthesi ...[more]

PMID: 38430542

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ACSL4 effect on renal ischemia-reperfusion (I/R) injury

Project description:Analysis of acute kidney injury (AKI) with knockdown of ACSL4. Results provide insight into the role of ACSL4 in the regulation of ferroptosis.

2022-02-23 | GSE181842 | GEO

ASF1 acts with RIF1 to promote DNA end-joining in BRCA1 deficient cells

Project description:RIF1 acts downstream of 53BP1 to coordinate DNA double strand break repair pathway choice between non-homologous end joining (NHEJ) and homologous recombination (HR). Here we identified ASF1 as an endogenous RIF1-associated protein. We showed that ASF1 forms complex with RIF1 and regulates RIF1-dependent functions in DNA damage response.

2022-06-09 | PXD027727 | Pride

Tumor suppressor Par-4 activates autophagy-dependent ferroptosis

Project description:Ferroptosis is a unique iron-dependent form of non-apoptotic cell death characterized by devastating lipid peroxidation. Whilst growing evidence suggests that ferroptosis is a type of autophagy-dependent cell death, the underlying molecular mechanisms regulating ferroptosis are largely unknown. In this study, through an unbiased RNA-sequencing screening, we demonstrate the activation of a multi-faceted tumor-suppressor protein Par-4/PAWR during ferroptosis. Functional studies reveal that genetic depletion of Par-4 effectively blocks ferroptosis, whereas Par-4 overexpression sensitizes cells to undergo ferroptosis. More importantly, we have determined that Par-4-triggered ferroptosis is mechanistically driven by the autophagic machinery. Upregulation of Par-4 promotes activation of ferritinophagy (autophagic degradation of ferritin) via the nuclear receptor co-activator 4 (NCOA4), resulting in excessive release of free labile iron and, hence, enhanced lipid peroxidation and ferroptosis. Inhibition of Par-4 dramatically suppresses the NCOA4-mediated ferritinophagy signaling axis. Our results also establish that Par-4 activation positively correlates with reactive oxygen species (ROS) production, which is critical for ferritinophagy-mediated ferroptosis. Furthermore, Par-4 knockdown effectively blocked ferroptosis-mediated tumor suppression in the mouse xenograft models. Collectively, these findings reveal that Par-4 has a crucial role in ferroptosis, which could be further exploited for cancer therapy.

2024-05-24 | GSE267823 | GEO

Comprehensive analysis of the host-virus interactome of SARS-CoV-2

Project description:Host-virus protein-protein interaction is the key component of SARS-CoV-2 life cycle, which can be targeted for therapeutic intervention. Thus, we conducted a comprehensive interactome study between the virus and host cell using tandem affinity purification (TAP) and BioID2 labeling strategies. In addition, we compared the interactomes of two key SARS-CoV-2 encoded viral proteins, NSP1 and N protein, to the interactomes of their counterparts in other human coronaviruses.

2021-06-29 | PXD023209 | Pride

Acsl4 Determines Ferroptosis Sensitivity by Shaping Cellular Lipid Composition

Project description:Ferroptosis is a form of regulated necrotic cell death controlled by glutathione peroxidase 4 (GPX4). At present, mechanisms that could predict sensitivity and/or resistance and that may be exploited to modulate this form of cell death are needed. We applied two independent approaches, a genome-wide CRISPR-based genetic screen and microarray analysis of ferroptosis-resistant cell lines to uncover acyl-CoA synthetase long-chain family member 4 (Acsl4) as an essential component for ferroptosis execution.

2017-06-01 | GSE86384 | GEO

Circ_0008146 exacerbates ferroptosis via regulating miR-342-5p/ACSL4 axis after cerebral ischemia-reperfusion in mice

Project description:Background: Characterized by high incidence, mutilation, and death rate, acute ischemic stroke (AIS) has threatened people’s health seriously. Therefore, there is an urge need for early diagnosis and effective treatment of AIS. The purpose of this study was to clarify the regulatory role and potential molecular mechanism of miR-342-5p and circRNA_0008146 in AIS. Materials and Methods: Small RNA sequencing analysis was performed to screen differentially expressed miRNAs between the AIS and control group. Middle cerebral artery occlusion/reperfusion (MCAO/R) models were constructed in C57BL/6J mice. The circRNA_0008146 and miRNA expression levels were detected by quantitative real-time PCR. Assay kits were used to determine Fe2+ levels and assess a battery of oxidative stress indicators, including ROS, MDA, LPO, SOD, and GSH/GSSG. The content of ACSL4 was measured by Western blot. The neurobehavioral manifestation was evaluated using the modified Neurological Severity (mNSS) Score, rotarod test, and corner test. TTC staining was employed to detect cerebral infarction volume. Nissl staining was adapted to detect histological change and neuronal damage. Results: RNA sequencing analysis revealed miR-342-5p was significantly downregulated in the plasma of AIS patients. MiR-342-5p inhibited oxidative stress and RSL3-induced ferroptosis after cerebral ischemic-reperfusion injury in vivo by targeting ferroptosis-related gene ACSL4. CircRNA_0008146 acted as a sponge of miR-342-5p, and overexpression of circRNA_0008146 increased brain damage in stroke mice. CircRNA_0008146 contributed to ferroptosis in cerebral infraction via sponging miR-342-5p to regulate ACSL4. Conclusion: CircRNA_0008146/miR-342-5p/ACSL4 axis regulate ferroptosis after cerebral ischemia-reperfusion, which may be a potential therapeutic target for ischemic stroke.

2024-08-08 | GSE254322 | GEO

HOXB13 WT and G84E mass spectrometry

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2023-03-11 | PXD030810 | Pride

Identification of phosphorylated amino acids in CgSub2 protein in Candida glabrata

Project description:The objective of the project is to identify the phosphorylated amino acid residues in CgSub2 in the pathogenic yeast Candida glabrata. For this analysis, wild-type cells and mutants lacking CgHog1 MAPK or CgSlt2MAPK or both CgHog1 and CgSlt2 MAPKs were used.

2024-05-06 | PXD049381 | Pride

RNA-seq data in cardiac tissues from cardiomyocyte-specific Acsl4 knockout mice after transverse aortic constriction

Project description:In order to investigate the differentially expressed genes in Acsl4 knockout after TAC (Transverse aortic constriction) or sham surgery. The experiment was divided to four groups including sham-operated Acsl4 flox/flox mice (FS), sham-operated Acsl4 knockout mice (KS), TAC-operated Acsl4 flox/flox mice (FT), TAC-operated Acsl4 knockout mice (KT) n=3 mice/group. The heart tissue was isolated after 21 days after performing TAC or sham surgery.

2024-08-26 | E-MTAB-14383 | biostudies-arrayexpress

SFB-tagged(S-protein tag, Flag epitope tag, and streptavidin-binding peptide tag) RNF4 wild-type and CS mutant LC-MSMS

Project description:To elucidate the role of RNF4 in DNA replication and fork reversal, we performed tandem affinity purification (TAP) using a HEK293T cell line that stably expresses SFB-tagged(S-protein tag, Flag epitope tag, and streptavidin-binding peptide tag) wild-type and CS mutant to isolate proteins that associate with RNF4.

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