Altmäe, S.* ; Segura, M.T.* ; Esteban, F.J.* ; Bartel, S.* ; Brandi, P.* ; Irmler, M. ; Beckers, J. ; Demmelmair, H.* ; López-Sabater, C.* ; Koletzko, B.* ; Krauss-Etschmann, S. ; Campoy, C.*
     
 
    
        
Maternal pre-pregnancy obesity is associated with altered placental transcriptome.
    
    
        
    
    
        
        PLoS ONE 12:e0169223 (2017)
    
    
    
		
		
			
				Maternal obesity has a major impact on pregnancy outcomes. There is growing evidence that maternal obesity has a negative influence on placental development and function, thereby adversely influencing offspring programming and health outcomes. However, the molecular mechanisms underlying these processes are poorly understood. We analysed ten term placenta's whole transcriptomes in obese (n = 5) and normal weight women (n = 5), using the Affymetrix microarray platform. Analyses of expression data were carried out using non-parametric methods. Hierarchical clustering and principal component analysis showed a clear distinction in placental transcriptome between obese and normal weight women. We identified 72 differentially regulated genes, with most being down-regulated in obesity (n = 61). Functional analyses of the targets using DAVID and IPA confirm the dysregulation of previously identified processes and pathways in the placenta from obese women, including inflammation and immune responses, lipid metabolism, cancer pathways, and angiogenesis. In addition, we detected new molecular aspects of obesity-derived effects on the placenta, involving the glucocorticoid receptor signalling pathway and dysregulation of several genes including CCL2, FSTL3, IGFBP1, MMP12, PRG2, PRL, QSOX1, SERPINE2 and TAC3. Our global gene expression profiling approach demonstrates that maternal obesity creates a unique in utero environment that impairs the placental transcriptome.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Gene-expression; Trophoblast Migration; Trimester Placentas; Multicenter Trial; Pregnancy; Preeclampsia; System; Lipotoxicity; Inflammation; Gestation
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2017
    
 
    
        Prepublished im Jahr 
        
    
 
    
        HGF-Berichtsjahr
        2017
    
 
    
    
        ISSN (print) / ISBN
        1932-6203
    
 
    
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	    Band: 12,  
	    Heft: 1,  
	    Seiten: ,  
	    Artikelnummer: e0169223 
	    Supplement: ,  
	
    
 
  
        
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            Verlag
            Public Library of Science (PLoS)
        
 
        
            Verlagsort
            Lawrence, Kan.
        
 
	
        
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        Begutachtungsstatus
        Peer reviewed
    
 
     
    
        POF Topic(s)
        30201 - Metabolic Health
30202 - Environmental Health
90000 - German Center for Diabetes Research
    
 
    
        Forschungsfeld(er)
        Genetics and Epidemiology
Lung Research
    
 
    
        PSP-Element(e)
        G-500600-004
G-501600-003
G-501900-064
G-501900-023
    
 
    
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        Erfassungsdatum
        2017-03-01