Evidence map›Paper›PMID 35741045›Full record

ArticleCells2022

The Spike Protein of SARS-CoV-2 Impairs Lipid Metabolism and Increases Susceptibility to Lipotoxicity: Implication for a Role of Nrf2.

Vi Nguyen, Yuping Zhang, Chao Gao, Xiaoling Cao, Yan Tian, Wayne Carver, Hippokratis Kiaris, Taixing Cui, Wenbin Tan

Open access · goldAbstract read
In one paragraph

Article in Cells, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.0field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Recent progress in understanding ferroptosis mechanisms in infectious diseases.Frontiers in cellular and infection microbiology · 2026
    Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. The role and therapeutic potential of itaconate in lung disease.Cellular & molecular biology letters · 2024
    Review
  8. Review
  9. Review
  10. Article
  11. Article
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  13. Article
  14. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 2 countries.

Vi NguyenDepartment of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC 29209, USA.
Yuping ZhangDepartment of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC 29209, USA.
Chao GaoDepartment of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC 29209, USA.
Xiaoling CaoDepartment of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC 29209, USA.
Yan TianDepartment of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC 29209, USA.
Wayne CarverDepartment of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC 29209, USA.
Hippokratis KiarisDrug Discovery & Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC 29208, USA.
Taixing CuiDepartment of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC 29209, USA.
Wenbin TanDepartment of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, SC 29209, USA.ORCID 0000-0002-2334-8988
University of South Carolina · USCentral South University · CN

Funding

Targeting NMDA Receptors and Brain Estradiol to Rescue Memory in Aging FemalesP20GM109091 · NIGMS · UNIVERSITY OF SOUTH CAROLINA AT COLUMBIA · PI RONINSON, IGOR B · 2014 to 2024
$25.2M
Vascular Pathogenesis of Port Wine StainR01AR073172 · NIAMS · UNIVERSITY OF SOUTH CAROLINA AT COLUMBIA · PI TAN, WENBIN · 2018 to 2022
$1.5M
The NRF2-p62 Axis in the Cross-Talk between Proteasomal and Lysosomal DegradationR01HL131667 · NHLBI · UNIVERSITY OF SOUTH DAKOTA · PI CUI, TAIXING, WANG, XUEJUN · 2017 to 2020
$1.4M
NHLBI NIH HHS R01 HL131667NIAMS NIH HHS R01 AR073172NIGMS NIH HHS P20 GM109091
6 · The paper itself

Abstract

Coronavirus disease 2019 (COVID-19) patients show lipid metabolic alterations, but the mechanism remains unknown. In this study, we aimed to investigate whether the Spike protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) impairs lipid metabolism in host cells. We generated a Spike cell line in HEK293 using the pcDNA vector carrying the Spike gene expression cassette. A control cell line was generated using the empty pcDNA vector. Gene expression profiles related to lipid metabolic, autophagic, and ferroptotic pathways were investigated. Palmitic acid (PA)-overload was used to assess lipotoxicity-induced necrosis. As compared with controls, the Spike cells showed a significant increase in lipid depositions in cell membranes as well as dysregulation of expression of a panel of molecules involving lipid metabolism, autophagy, and ferroptosis. The Spike cells showed an upregulation of nuclear factor erythroid 2-related factor 2 (Nrf2), a multifunctional transcriptional factor, in response to PA. Furthermore, the Spike cells exhibited increased necrosis in response to PA-induced lipotoxicity compared to control cells in a time- and dose-dependent manner via ferroptosis, which could be attenuated by the Nrf2 inhibitor trigonelline. We conclude that the Spike protein impairs lipid metabolic and autophagic pathways in host cells, leading to increased susceptibility to lipotoxicity via ferroptosis which can be suppressed by a Nrf2 inhibitor. This data also suggests a central role of Nrf2 in Spike-induced lipid metabolic impairments.

Indexed as

COVID-19Lipid MetabolismNF-E2-Related Factor 2Spike Glycoprotein, CoronavirusHEK293 CellsHumansNecrosisPalmitic AcidSARS-CoV-2NF-E2-Related Factor 2Palmitic AcidSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2autophagyferroptosislipid metabolismlipotoxicitySARS-CoV-2spike protein

Identifiers

PMID35741045
PMCPMC9221434
OpenAlexW4282835356

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.