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Comparative Proteomics of HepG2 Cells Reveals NGLY1 as an Important Regulator of Ferroptosis Resistance and Iron Uptake

ABSTRACT: NGLY1 deficiency is a rare genetic disorder caused by mutations in the NGLY1 gene. This disorder presents a wide range of clinical symptoms, and its severity varies among affected individuals. Previous studies have focused on understanding the influence of NGLY1 on energy metabolism, revealing dysregulation in lipid metabolism following NGLY1 deletion. In this study, we investigated the consequences of the loss of NGLY1 on iron homeostasis using human hepatocellular carcinoma cells, HepG2. Comparative proteomics analysis revealed significant alterations in protein quantities in NGLY1-deficient HepG2 cells that suggested ferroptosis was prominently upregulated. Moreover, dysregulated iron uptake and increased reactive oxygen species (ROS) production were observed in the absence of NGLY1, indicating a novel perspective on the consequences of the loss of NGLY1. These findings provide important insights into the molecular pathways affected by NGLY1 deletion and may contribute to the development of potential therapeutic strategies for individuals with NGLY1 deficiency.

INSTRUMENT(S):

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Cell Culture

SUBMITTER: Takehiro Suzuki

LAB HEAD: Naoshi Dohmae

PROVIDER: PXD058551 | Pride | 2025-07-18

REPOSITORIES: Pride

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			Action	DRS
	Comparative_Proteomics.mzML	Mzml
	Comparative_Proteomics.mzid.gz	Mzid
	HepG2_KO_0h_1.raw	Raw
	HepG2_KO_0h_2.raw	Raw
	HepG2_KO_0h_3.raw	Raw

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