001     302873
005     20250720021523.0
024 7 _ |a 10.3389/fimmu.2025.1599352
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037 _ _ |a DKFZ-2025-01413
041 _ _ |a English
082 _ _ |a 610
100 1 _ |a Abooali, Maryam
|b 0
245 _ _ |a Wuhan strain of SARS-CoV-2 triggers activation of immune evasion machinery similar to the one operated by cancer cells.
260 _ _ |a Lausanne
|c 2025
|b Frontiers Media
336 7 _ |a article
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520 _ _ |a In the last 2 years, there has been an increasing concern that SARS-CoV-2 infection may represent a marker of undiagnosed cancers. A potential connection between COVID-19/long COVID and malignant transformation/cancer progression was reported in a number of studies. It is, however, unclear if the virus itself can cause malignant transformation or if it has a potential to support malignant processes in human body. We analyzed nasopharyngeal swabs collected from individuals infected with Wuhan strain of SARS-CoV-2 and conducted in vitro studies using BEAS-2B human bronchial epithelial cells. Here we report that Wuhan strain of SARS-CoV-2 and its spike protein induce activation of hypoxia-inducible factor 1 (HIF-1) transcription complex in infected cells. This effect is achieved through conversion of cellular 2-oxoglutarate into 2-hydroxy-glutarate, which most likely blocks the activity of HIF-1α prolyl hydroxylation. As such, it leads to activation of HIF-1, which triggers production of transforming growth factor-β type 1 (TGF-β). TGF-β induces expression of immune checkpoint proteins, such as galectin-9, programmed death-ligand 1, and indoleamine-2,3-dioxygenase, an enzyme, which is involved in production of immunosuppressive amino acid called L-kynurenine. These immune checkpoint pathways were capable of suppressing both helper and cytotoxic activities of T lymphocytes and, as such, could potentially support malignant processes in infected tissues.
536 _ _ |a 311 - Zellbiologie und Tumorbiologie (POF4-311)
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650 _ 7 |a COVID-19
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650 _ 7 |a SARS-CoV-2
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650 _ 7 |a cancer
|2 Other
650 _ 7 |a immune checkpoints
|2 Other
650 _ 7 |a immune evasion
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650 _ 7 |a Hypoxia-Inducible Factor 1, alpha Subunit
|2 NLM Chemicals
650 _ 7 |a HIF1A protein, human
|2 NLM Chemicals
650 _ 7 |a Spike Glycoprotein, Coronavirus
|2 NLM Chemicals
650 _ 7 |a Indoleamine-Pyrrole 2,3,-Dioxygenase
|2 NLM Chemicals
650 _ 7 |a spike protein, SARS-CoV-2
|2 NLM Chemicals
650 _ 7 |a B7-H1 Antigen
|2 NLM Chemicals
650 _ 7 |a Ketoglutaric Acids
|2 NLM Chemicals
650 _ 7 |a CD274 protein, human
|2 NLM Chemicals
650 _ 2 |a Humans
|2 MeSH
650 _ 2 |a SARS-CoV-2: immunology
|2 MeSH
650 _ 2 |a COVID-19: immunology
|2 MeSH
650 _ 2 |a COVID-19: virology
|2 MeSH
650 _ 2 |a Immune Evasion: immunology
|2 MeSH
650 _ 2 |a Hypoxia-Inducible Factor 1, alpha Subunit: metabolism
|2 MeSH
650 _ 2 |a Spike Glycoprotein, Coronavirus: immunology
|2 MeSH
650 _ 2 |a Spike Glycoprotein, Coronavirus: metabolism
|2 MeSH
650 _ 2 |a Indoleamine-Pyrrole 2,3,-Dioxygenase: metabolism
|2 MeSH
650 _ 2 |a Epithelial Cells: immunology
|2 MeSH
650 _ 2 |a Epithelial Cells: virology
|2 MeSH
650 _ 2 |a Cell Line
|2 MeSH
650 _ 2 |a B7-H1 Antigen: metabolism
|2 MeSH
650 _ 2 |a Neoplasms: immunology
|2 MeSH
650 _ 2 |a Ketoglutaric Acids: metabolism
|2 MeSH
700 1 _ |a Yasinska, Inna M
|b 1
700 1 _ |a Thapa, Gauri
|b 2
700 1 _ |a Lei, Xi
|b 3
700 1 _ |a da Costa, Kelly A S
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700 1 _ |a Schlichtner, Stephanie
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700 1 _ |a Berger, Steffen M
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700 1 _ |a Fasler-Kan, Elizaveta
|b 7
700 1 _ |a Temperton, Nigel J
|b 8
700 1 _ |a Vuono, Romina
|b 9
700 1 _ |a Sumbayev, Vadim V
|b 10
773 _ _ |a 10.3389/fimmu.2025.1599352
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