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. 2023 Oct;43(10):2302-2308.
doi: 10.1111/liv.15677. Epub 2023 Jul 17.

Lack of endothelial autophagy does not impair liver regeneration after partial hepatectomy in mice

Genís Campreciós  1   2   3 , Aina Anton  1   2 , Anna Oncins  1   2 , Carla Montironi  4 , Maria Ruart  1   2 , Rosa Montañés  1   2 , Héctor García-Calderó  1   2   3 , Joan Carles García-Pagán  1   2   3   5 , Virginia Hernández-Gea  1   2   3   5
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Lack of endothelial autophagy does not impair liver regeneration after partial hepatectomy in mice

Genís Campreciós et al. Liver Int. 2023 Oct.

Abstract

Liver sinusoidal endothelial cells (LSEC) are key elements in regulating the liver response to injury and regeneration. While endothelial autophagy is essential to protect endothelial cells from injury-induced oxidative stress and fibrosis, its role in liver regeneration has not been elucidated. This study was intended to investigate the role of endothelial autophagy in liver regeneration in the context of partial hepatectomy (PHx). Analysis of autophagy levels in rat LSEC after PHx indicated a tendency to decrease activity the first 2 days after surgery. PHx performed in mice with impaired endothelial autophagy (Atg7flox/flox ;VE-Cadherin-Cre+ ) and their littermate controls showed no differences neither in liver-to-body weight ratio, histological analysis, hepatocyte proliferation nor vascular integrity during the first 7 days after PH and liver regeneration was completely achieved. Our results indicate that endothelial autophagy does not play an essential role in the coordination of the liver regeneration process after PHx.

Keywords: LSEC; endothelial autophagy; liver regeneration; oxidative stress; partial hepatectomy.

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