Effects of vitamin D-induced supernatant of placental explants from preeclamptic women on oxidative stress and nitric oxide bioavailability in human umbilical vein endothelial cells

Autor(es)

Nunes, P. R. ^[1] ; Gomes, V. J. ^[1] ; Sandrim, V. C. ^[2] ; Peracoli, J. C. ^[1] ; Peracoli, M. T. S. ^[1] ; Carlstrom, M. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Fac Med Botucatu, Dept Ginecol & Obstet, Botucatu, SP - Brazil

^[2] Univ Estadual Paulista, Inst Biociencias, Dept Biofis & Farmacol, Botucatu, SP - Brazil

^[3] Karolinska Inst, Dept Physiol & Pharmacol, Stockholm - Sweden

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Medical and Biological Research; v. 54, n. 8 2021.
• Citações Web of Science: 0

Resumo

The study evaluated the effect of the supernatant of placental explants from preeclamptic (PE) and normotensive (NT) pregnant women after tissue treatment with or without vitamin D (VD) on oxidative stress and nitric oxide (NO) bioavailability in human umbilical vein endothelial cells (HUVEC). Placental explants were prepared from eight NT and eight PE women, and supernatants were obtained after incubation with or without hydrogen peroxide (H2O2) and/or VD. HUVEC were cultured for 24 h with supernatants, and the following parameters were analyzed in HUVEC cultures: NO, nitrate (NO3-), and nitrite (NO2-) levels, lipid peroxidation, and intracellular reactive oxygen species (ROS). Results showed that the production of NO3-, NO2-, malondialdehyde (MDA), and ROS were significantly higher in HUVEC treated with explant supernatant from PE compared to NT pregnant women, while the supernatant of PE explants treated with VD led to a decrease in these parameters. A significantly high production of NO was detected in HUVEC cultured with control supernatant of NT group, and in cultures treated with supernatant of PE explants treated with VD. Taken together, these results demonstrated that cultures of placental explants from PE women with VD treatment generated a supernatant that decreased oxidative stress and increased the bioavailability of NO in endothelial cells. (AU)

• Processo FAPESP: 16/23452-2 - Efeito imunomodulador da vitamina D sobre a ativação de inflamassomas em tecido placentário de gestantes portadoras de pré-eclâmpsia
• Beneficiário: Priscila Rezeck Nunes
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 19/00234-8 - Efeitos do sobrenadante de explantes placentários tratados com vitamina D no estresse oxidativo, inflamação e disponibilidade de óxido nítrico em células endoteliais
• Beneficiário: Priscila Rezeck Nunes
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado