Cited by 160Neonatal and fetal brain pathologyAutophagy in Disease and TherapyNeuroscience of respiration and sleep

Neuroprotection by selective neuronal deletion of Atg7 in neonatal brain injury

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Xie, Cuicui, Ginet, Vanessa, Sun, Yanyan, Koike, Masato, Zhou, Kai, Li, Tao, Li, Hongfu, Li, Qian +7 more·2016·Autophagy

Abstract

Perinatal asphyxia induces neuronal cell death and brain injury, and is often associated with irreversible neurological deficits in children. There is an urgent need to elucidate the neuronal death mechanisms occurring after neonatal hypoxia-ischemia (HI). We here investigated the selective neuronal deletion of the Atg7 (autophagy related 7) gene on neuronal cell death and brain injury in a mouse model of severe neonatal hypoxia-ischemia. Neuronal deletion of Atg7 prevented HI-induced autophagy, resulted in 42% decrease of tissue loss compared to wild-type mice after the insult, and reduced cell death in multiple brain regions, including apoptosis, as shown by decreased caspase-dependent and -independent cell death. Moreover, we investigated the lentiform nucleus of human newborns who died after severe perinatal asphyxia and found increased neuronal autophagy after severe hypoxic-ischemic encephalopathy compared to control uninjured brains, as indicated by the numbers of MAP1LC3B/LC3B (microtubule-associated protein 1 light chain 3)-, LAMP1 (lysosomal-associated membrane protein 1)-, and CTSD (cathepsin D)-positive cells. These findings reveal that selective neuronal deletion of Atg7 is strongly protective against neuronal death and overall brain injury occurring after HI and suggest that inhibition of HI-enhanced autophagy should be considered as a potential therapeutic target for the treatment of human newborns developing severe hypoxic-ischemic encephalopathy.

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  • Neuron-specific Atg7 deletion confers neuroprotection in a mouse model of severe neonatal hypoxia-ischemia by preventing neuronal RCD.

    “The neuron-specific deletion of Atg7 confers robust neuroprotection in a mouse model of severe neonatal hypoxia-ischemia by preventing neuronal RCD [847].”
  • Brain-specific deletion of Atg7 confers protection against neonatal hypoxia-ischemia injury in mice.

    “brain‐specific deletion of Atg7 confers protection against neonatal hypoxia–ischemia injury in mice (Koike et al, 2008; Xie et al, 2016).”

    From Autophagy in major human diseases (2021) · cites this paper as Xie et al, 2016

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Authors
Xie, C., Ginet, V., Sun, Y., Koike, M., Zhou, K., Li, T., Li, H., Li, Q., Wang, X., Uchiyama, Y., Truttmann, A. C., Kroemer, G., Puyal, J., Blomgren, K., & Zhu, C.
Affiliations
  • University of Gothenburg (SE)
  • University of Lausanne (CH)
  • Zhengzhou Children's Hospital (CN)
  • Juntendo University (JP)
  • Third Affiliated Hospital of Zhengzhou University (CN)
  • Zhengzhou University (CN)
  • Centre Hospitalier Universitaire Vaudois (CH)
  • Inserm (FR)
  • Karolinska University Hospital (SE)
Corresponding author
  • Puyal, Julien
  • Blomgren, Klas
  • Zhu, Changlian
Venue
Autophagy
Published
2016-02-01
Volume
12
Issue
2
Pages
410-423
ISSN
  • 1554-8627 (ISSN-L)
  • 1554-8635
OpenAlex
W2232187600
Cited by
160
References
45
Citations by year
2026: 3 · 2025: 11 · 2024: 10 · 2023: 10 · 2022: 17 · 2021: 18 · 2020: 26 · 2019: 14 · 2018: 20 · 2017: 20 · 2016: 11
FWCI
25.19
Type
journal article
Language
en
Open access
Locations
  • Autophagy (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • SERVAL (Université de Lausanne) (publishedVersion, other-oa)
  • IRIS (submittedVersion)
Funders
  • National Science Foundation
  • Swedish Cancer Foundation
  • Fondation Leducq
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (163064, 130769, 310030)
  • National Natural Science Foundation of China
  • Stiftelserna Wilhelm och Martina Lundgrens
  • Vetenskapsrådet
  • Göteborgs Läkaresällskap
  • Barncancerfonden
  • Université de Lausanne
  • Svenska Läkaresällskapet
  • Japan Society for the Promotion of Science (25460276, 15H01388, 26111519)
Topics
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Neonatal and fetal brain pathology
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Neuroscience of respiration and sleep
Keywords
ATG7, neonatal hypoxia-ischemia, perinatal asphyxia, hypoxic-ischemic encephalopathy, neuronal cell death, neuroprotection, lentiform nucleus, caspase-dependent cell death, caspase-independent cell death, autophagy inhibition, therapeutic target
MeSH terms
Neuroprotection, Autophagy-Related Protein 7, Animals, Animals, Newborn, Asphyxia Neonatorum, Brain Injuries, Cell Nucleus, Corpus Striatum, Enzyme Activation, Heat-Shock Proteins, Humans, Infant, Newborn, Inflammation, Mitochondria, Neurons, Gene Deletion, Integrases, Hypoxia-Ischemia, Brain, Protein Transport, Apoptosis Inducing Factor, Mice, Caspase 3

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