The Onset of Systemic Oxidative Stress Associated with the Accumulation of Lipid Peroxidation Product Acrolein in the Skin of Patients with Small-Vessel Vasculitis

Sredoja Tišma, Vesna; Bulimbasić, Stela; Galešić Ljubanović, Danica; Galešić, Kresimir; Morović-Vergles, Jadranka; Mitrović, Joško; Uchida, Koji; Tatzber, Franz; Žarković, Neven; Jaganjac, Morana (2021) The Onset of Systemic Oxidative Stress Associated with the Accumulation of Lipid Peroxidation Product Acrolein in the Skin of Patients with Small-Vessel Vasculitis. Molecules, 26 (8). ISSN 1420-3049

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Abstract

Small-vessel vasculitis (SVV) is the inflammation of the vessel wall that can result in hemorrhage and/or ischemia. Among the histological findings in SVV are increased infiltrating neutrophils, which, due to their oxidative burst and myeloperoxidase activity, release excessive reactive oxygen species, triggering a chain reaction of lipid peroxidation and yielding reactive aldehydes such as acrolein. The implication of oxidative stress in the pathogenesis of SVV was studied, focusing on acrolein immunohistochemistry in the affected skin vessels and systemic stress response. Samples from SVV patients and healthy subjects were collected and analyzed for total serum peroxides, total antioxidant capacity, inflammatory and immunological parameters, as well as for the presence of acrolein–protein adducts in the skin tissue specimens. The obtained data showed that systemic redox homeostasis and iron metabolism are altered in SVV patients. Possible biomarkers in the evaluation of oxidative status, disease activity and prevalence were indicated. Furthermore, a strong correlation between the accumulation of acrolein–protein adducts in the skin and the progression of the disease was revealed. Thus, the results of this study demonstrate that SVV is not only associated with systemic oxidative stress but also with tissue-specific oxidative stress that promotes acrolein formation and protein modification correlating with the severity of cutaneous vasculitis.

Item Type:	Article
Uncontrolled Keywords:	vasculitis ; oxidative stress ; lipid peroxidation ; acrolein
Subjects:	BIOMEDICINE AND HEALTHCARE > Basic Medical Sciences
Divisions:	Division of Molecular Medicine
Depositing User:	Morana Jaganjac
Date Deposited:	10 Aug 2021 08:48
URI:	http://fulir.irb.hr/id/eprint/6524
DOI:	10.3390/molecules26082344

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