Obesity-Associated Metabolic Disturbances Reverse the Antioxidant and Anti-Inflammatory Properties of High-Density Lipoproteins in Microglial Cells

High-density lipoproteins (HDLs) play an important role in reverse cholesterol transport and present antioxidant properties, among others. In the central nervous system (CNS), there are HDLs, where these lipoproteins could influence brain health. Owing to the new evidence of HDL functionality remode...

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Autores principales: Elena Grao-Cruces, Maria C. Millan-Linares, Maria E. Martin-Rubio, Rocio Toscano, Sergio Barrientos-Trigo, Beatriz Bermudez, Sergio Montserrat-de la Paz
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Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:19ae9c854b2c4aee9db4f89175a2945e2021-11-25T16:51:20ZObesity-Associated Metabolic Disturbances Reverse the Antioxidant and Anti-Inflammatory Properties of High-Density Lipoproteins in Microglial Cells10.3390/biomedicines91117222227-9059https://doaj.org/article/19ae9c854b2c4aee9db4f89175a2945e2021-11-01T00:00:00Zhttps://www.mdpi.com/2227-9059/9/11/1722https://doaj.org/toc/2227-9059High-density lipoproteins (HDLs) play an important role in reverse cholesterol transport and present antioxidant properties, among others. In the central nervous system (CNS), there are HDLs, where these lipoproteins could influence brain health. Owing to the new evidence of HDL functionality remodeling in obese patients, and the fact that obesity-associated metabolic disturbances is pro-inflammatory and pro-oxidant, the aim of this study was to investigate if HDL functions are depleted in obese patients and obesity-associated microenvironment. HDLs were isolated from normal-weight healthy (nwHDL) and obese men (obHDL). The oxHDL level was measured by malondialdehyde and 4-hydroxynoneal peroxided products. BV2 microglial cells were exposed to different concentrations of nwHDL and obHDL in different obesity-associated pro-inflammatory microenvironments. Our results showed that hyperleptinemia increased oxHDL levels. In addition, nwHDLs reduced pro-inflammatory cytokines’ release and M1 marker gene expression in BV2 microglial cells. Nevertheless, both nwHDL co-administered with LPS+leptin and obHDL promoted BV2 microglial activation and a higher pro-inflammatory cytokine production, thus confirming that obesity-associated metabolic disturbances reverse the antioxidant and anti-inflammatory properties of HDLs in microglial cells.Elena Grao-CrucesMaria C. Millan-LinaresMaria E. Martin-RubioRocio ToscanoSergio Barrientos-TrigoBeatriz BermudezSergio Montserrat-de la PazMDPI AGarticleobesityparaoxonaselipoproteinsoxidationmicroglianeuroinflammationBiology (General)QH301-705.5ENBiomedicines, Vol 9, Iss 1722, p 1722 (2021)
institution DOAJ
collection DOAJ
language EN
topic obesity
paraoxonase
lipoproteins
oxidation
microglia
neuroinflammation
Biology (General)
QH301-705.5
spellingShingle obesity
paraoxonase
lipoproteins
oxidation
microglia
neuroinflammation
Biology (General)
QH301-705.5
Elena Grao-Cruces
Maria C. Millan-Linares
Maria E. Martin-Rubio
Rocio Toscano
Sergio Barrientos-Trigo
Beatriz Bermudez
Sergio Montserrat-de la Paz
Obesity-Associated Metabolic Disturbances Reverse the Antioxidant and Anti-Inflammatory Properties of High-Density Lipoproteins in Microglial Cells
description High-density lipoproteins (HDLs) play an important role in reverse cholesterol transport and present antioxidant properties, among others. In the central nervous system (CNS), there are HDLs, where these lipoproteins could influence brain health. Owing to the new evidence of HDL functionality remodeling in obese patients, and the fact that obesity-associated metabolic disturbances is pro-inflammatory and pro-oxidant, the aim of this study was to investigate if HDL functions are depleted in obese patients and obesity-associated microenvironment. HDLs were isolated from normal-weight healthy (nwHDL) and obese men (obHDL). The oxHDL level was measured by malondialdehyde and 4-hydroxynoneal peroxided products. BV2 microglial cells were exposed to different concentrations of nwHDL and obHDL in different obesity-associated pro-inflammatory microenvironments. Our results showed that hyperleptinemia increased oxHDL levels. In addition, nwHDLs reduced pro-inflammatory cytokines’ release and M1 marker gene expression in BV2 microglial cells. Nevertheless, both nwHDL co-administered with LPS+leptin and obHDL promoted BV2 microglial activation and a higher pro-inflammatory cytokine production, thus confirming that obesity-associated metabolic disturbances reverse the antioxidant and anti-inflammatory properties of HDLs in microglial cells.
format article
author Elena Grao-Cruces
Maria C. Millan-Linares
Maria E. Martin-Rubio
Rocio Toscano
Sergio Barrientos-Trigo
Beatriz Bermudez
Sergio Montserrat-de la Paz
author_facet Elena Grao-Cruces
Maria C. Millan-Linares
Maria E. Martin-Rubio
Rocio Toscano
Sergio Barrientos-Trigo
Beatriz Bermudez
Sergio Montserrat-de la Paz
author_sort Elena Grao-Cruces
title Obesity-Associated Metabolic Disturbances Reverse the Antioxidant and Anti-Inflammatory Properties of High-Density Lipoproteins in Microglial Cells
title_short Obesity-Associated Metabolic Disturbances Reverse the Antioxidant and Anti-Inflammatory Properties of High-Density Lipoproteins in Microglial Cells
title_full Obesity-Associated Metabolic Disturbances Reverse the Antioxidant and Anti-Inflammatory Properties of High-Density Lipoproteins in Microglial Cells
title_fullStr Obesity-Associated Metabolic Disturbances Reverse the Antioxidant and Anti-Inflammatory Properties of High-Density Lipoproteins in Microglial Cells
title_full_unstemmed Obesity-Associated Metabolic Disturbances Reverse the Antioxidant and Anti-Inflammatory Properties of High-Density Lipoproteins in Microglial Cells
title_sort obesity-associated metabolic disturbances reverse the antioxidant and anti-inflammatory properties of high-density lipoproteins in microglial cells
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/19ae9c854b2c4aee9db4f89175a2945e
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