Evidence map›Paper›PMID 38004695›Full record

ArticleMicroorganisms2023

Human PBMCs Form Lipid Droplets in Response to Spike Proteins.

Kokilavani Sivaraman, Paco Pino, Guillaume Raussin, Stephanie Anchisi, Charles Metayer, Nicolas Dagany, Julia Held, Sabine Wrenger, Tobias Welte, Maria J Wurm and 3 more

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Microorganisms, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.4field-weighted citation impact, top 35% 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

1 citing paper in PubMed, 2 citations in OpenAlex.

  1. Article
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

13 authors at 2 institutions in 2 countries.

Kokilavani SivaramanDepartment of Respiratory Medicine, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover Medical School, 30625 Hannover, Germany.
Paco PinoExcellGene SA, 1970 Monthey, Switzerland.ORCID 0000-0001-9705-1389
Guillaume RaussinExcellGene SA, 1970 Monthey, Switzerland.
Stephanie AnchisiExcellGene SA, 1970 Monthey, Switzerland.
Charles MetayerExcellGene SA, 1970 Monthey, Switzerland.
Nicolas DaganyExcellGene SA, 1970 Monthey, Switzerland.
Julia HeldDepartment of Respiratory Medicine, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover Medical School, 30625 Hannover, Germany.
Sabine WrengerDepartment of Respiratory Medicine, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover Medical School, 30625 Hannover, Germany.ORCID 0000-0002-9733-6162
Tobias WelteDepartment of Respiratory Medicine, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover Medical School, 30625 Hannover, Germany.
Maria J WurmExcellGene SA, 1970 Monthey, Switzerland.
Florian M WurmExcellGene SA, 1970 Monthey, Switzerland.ORCID 0000-0003-1114-4520
Beata OlejnickaDepartment of Respiratory Medicine, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover Medical School, 30625 Hannover, Germany.ORCID 0000-0003-4343-6851
Sabina JanciauskieneDepartment of Respiratory Medicine, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Hannover Medical School, 30625 Hannover, Germany.
Medizinische Hochschule Hannover · DEÉcole Polytechnique Fédérale de Lausanne · CH

Funding

Enterprise europe network Niedersachsen ZW7-85152684
6 · The paper itself

Abstract

Intracellular lipid droplets (LDs) can accumulate in response to inflammation, metabolic stresses, and other physiological/pathological processes. Herein, we investigated whether spike proteins of SARS-CoV-2 induce LDs in human peripheral blood mononuclear cells (PBMCs) and in pulmonary microvascular endothelial cells (HPMECs). PBMCs or HPMECs were incubated alone or with endotoxin-free recombinant variants of trimeric spike glycoproteins (Alpha, Beta, Delta, and Omicron, 12 µg/mL). Afterward, cells were stained with Oil Red O for LDs, cytokine release was determined through ELISA, and the gene expression was analyzed through real-time PCR using TaqMan assays. Our data show that spikes induce LDs in PBMCs but not in HPMECs. In line with this, in PBMCs, spike proteins lower the expression of genes involving lipid metabolism and LD formation, such as SREBF1, HMGCS1, LDLR, and CD36. On the other hand, PBMCs exposed to spikes for 6 or 18 h did not increase in IL-1β, IL-6, IL-8, MCP-1, and TNFα release or expression as compared to non-treated controls. Thus, spike-induced LD formation in PBMCs seems to not be related to cell inflammatory activation. Further detailed studies are warranted to investigate in which specific immune cells spikes induce LDs, and what are the pathophysiological mechanisms and consequences of this induction in vivo.

Indexed as

chemokinescytokineshuman PBMCslipid dropletslipid metabolism geneslung microvascular endothelial cellsrecombinant spike protein

Identifiers

PMID38004695
PMCPMC10672762
OpenAlexW4388183341

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.