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Pregled bibliografske jedinice broj: 755019

Elastin aging and lipid oxidation products in human aorta


Zarkovic, Kamelija; Larroque-Cardoso, Pauline; Pucelle, Mellanie; Salvayre, Robert; Waeg, Georg; Nègre-Salvayre, Anne; Zarkovic, Neven
Elastin aging and lipid oxidation products in human aorta // Redox Biology, 4 (2015), 109-117 doi:10.1016/j.redox.2014.12.008 (međunarodna recenzija, članak, znanstveni)


Naslov
Elastin aging and lipid oxidation products in human aorta

Autori
Zarkovic, Kamelija ; Larroque-Cardoso, Pauline ; Pucelle, Mellanie ; Salvayre, Robert ; Waeg, Georg ; Nègre-Salvayre, Anne ; Zarkovic, Neven

Izvornik
Redox Biology (2213-2317) 4 (2015); 109-117

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
4-hydroxynonenal; Elastin; Atherosclerosis; Smooth muscle cells; Extracellular matrix; Aging

Sažetak
Vascular aging is associated with structural and functional modifications of the arteries, and by an increase in arterial wall thickening in the intima and the media, mainly resulting from structural modifications of the extracellular matrix (ECM) components. Among the factors known to accumulate with aging, advanced lipid peroxidation end products (ALEs) are a hallmark of oxidative stress-associated diseases such as atherosclerosis. Aldehydes generated from the peroxidation of polyunsaturated fatty acids (PUFA), (4-hydroxynonenal, malondialdehyde, acrolein), form adducts on cellular proteins, leading to a progressive protein dysfunction with consequences in the pathophysiology of vascular aging. The contribution of these aldehydes to ECM modification is not known. This study was carried out to investigate whether aldehyde-adducts are detected in the intima and media in human aorta, whether their level is increased in vascular aging, and whether elastin fibers are a target of aldehyde-adduct formation. Immunohistological and confocal immunofluorescence studies indicate that 4-HNE-histidine-adducts accumulate in an age-related manner in the intima, media and adventitia layers of human aortas, and are mainly expressed in smooth muscle cells. In contrast, even if the structure of elastin fiber is strongly altered in the aged vessels, our results show that elastin is not or very poorly modified by 4-HNE. These data indicate a complex role for lipid peroxidation and in particular for 4-HNE in elastin homeostasis, in the vascular wall remodeling during aging and atherosclerosis development.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija



POVEZANOST RADA


Projekt / tema
098-0982464-2519 - Lipidi, slobodni radikali i njihovi glasnici u integrativnoj onkologiji (Neven Žarković, )
108-0000000-0028 - Oksidacijski stres i tumori središnjeg živčanog sustava (Kamelija Žarković, )

Ustanove
Institut "Ruđer Bošković", Zagreb,
Medicinski fakultet, Zagreb

Časopis indeksira:


  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


Uključenost u ostale bibliografske baze podataka:


  • EMBASE (Excerpta Medica)


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