Consequences of COVID-19 on adipose tissue signatures.
    
    
        
    
    
        
        Int. J. Mol. Sci. 25:2908 (2024)
    
    
    
      
      
	
	    Since the emergence of coronavirus disease-19 (COVID-19) in 2019, it has been crucial to investigate the causes of severe cases, particularly the higher rates of hospitalization and mortality in individuals with obesity. Previous findings suggest that adipocytes may play a role in adverse COVID-19 outcomes in people with obesity. The impact of COVID-19 vaccination and infection on adipose tissue (AT) is currently unclear. We therefore analyzed 27 paired biopsies of visceral and subcutaneous AT from donors of the Leipzig Obesity BioBank that have been categorized into three groups (1: no infection/no vaccination; 2: no infection but vaccinated; 3: infected and vaccinated) based on COVID-19 antibodies to spike (indicating vaccination) and/or nucleocapsid proteins. We provide additional insights into the impact of COVID-19 on AT biology through a comprehensive histological transcriptome and serum proteome analysis. This study demonstrates that COVID-19 infection is associated with smaller average adipocyte size. The impact of infection on gene expression was significantly more pronounced in subcutaneous than in visceral AT and mainly due to immune system-related processes. Serum proteome analysis revealed the effects of the infection on circulating adiponectin, interleukin 6 (IL-6), and carbonic anhydrase 5A (CA5A), which are all related to obesity and blood glucose abnormalities.
	
	
	    
	
       
      
	
	    
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        Publication type
        Article: Journal article
    
 
    
        Document type
        Scientific Article
    
 
    
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        Keywords
        Covid-19 ; Sars-cov-2 Infection ; Adipose Tissue ; Obesity; Mitochondrial Carbonic-anhydrase; Sars-cov-2 Infection; Obesity; Interleukin-6; Hyperglycemia; Inflammation; Expression; Glucose
    
 
    
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        Language
        english
    
 
    
        Publication Year
        2024
    
 
    
        Prepublished in Year
        0
    
 
    
        HGF-reported in Year
        2024
    
 
    
    
        ISSN (print) / ISBN
        1661-6596
    
 
    
        e-ISSN
        1422-0067
    
 
    
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	    Volume: 25,  
	    Issue: 5,  
	    Pages: ,  
	    Article Number: 2908 
	    Supplement: ,  
	
    
 
    
        
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            MDPI
        
 
        
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            Basel
        
 
	
        
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        Reviewing status
        Peer reviewed
    
 
    
        Institute(s)
        Helmholtz Institute for Metabolism, Obesity and Vascular Research (HI-MAG)
    
 
    
        POF-Topic(s)
        30201 - Metabolic Health
    
 
    
        Research field(s)
        Helmholtz Diabetes Center
    
 
    
        PSP Element(s)
        G-506501-001
G-506500-001
    
 
    
        Grants
        Deutsche Diabetes Gesellschaft e.V.
    
 
    
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        Erfassungsdatum
        2024-05-08