Cited by 3,043Cell death mechanisms and regulationNeurological Disorders and TreatmentsAcute Ischemic Stroke Management

Ischemic Cell Death in Brain Neurons

Lipton, Peter·1999·Physiological Reviews

Abstract

This review is directed at understanding how neuronal death occurs in two distinct insults, global ischemia and focal ischemia. These are the two principal rodent models for human disease. Cell death occurs by a necrotic pathway characterized by either ischemic/homogenizing cell change or edematous cell change. Death also occurs via an apoptotic-like pathway that is characterized, minimally, by DNA laddering and a dependence on caspase activity and, optimally, by those properties, additional characteristic protein and phospholipid changes, and morphological attributes of apotosis. Death may also occur by autophagocytosis. The cell death process has four major stages. The first, the induction stage, includes several changes initiated by ischemia and reperfusion that are very likely to play major roles in cell death. These include inhibition (and subsequent reactivation) of electron transport, decreased ATP, decreased pH, increased cell Ca 2+ , release of glutamate, increased arachidonic acid, and also gene activation leading to cytokine synthesis, synthesis of enzymes involved in free radical production, and accumulation of leukocytes. These changes lead to the activation of five damaging events, termed perpetrators. These are the damaging actions of free radicals and their product peroxynitrite, the actions of the Ca 2+ -dependent protease calpain, the activity of phospholipases, the activity of poly-ADPribose polymerase (PARP), and the activation of the apoptotic pathway. The second stage of cell death involves the long-term changes in macromolecules or key metabolites that are caused by the perpetrators. The third stage of cell death involves long-term damaging effects of these macromolecular and metabolite changes, and of some of the induction processes, on critical cell functions and structures that lead to the defined end stages of cell damage. These targeted functions and structures include the plasmalemma, the mitochondria, the cytoskeleton, protein synthesis, and kinase activities. The fourth stage is the progression to the morphological and biochemical end stages of cell death. Of these four stages, the last two are the least well understood. Quite little is known of how the perpetrators affect the structures and functions and whether and how each of these changes contribute to cell death. According to this description, the key step in ischemic cell death is adequate activation of the perpetrators, and thus a major unifying thread of the review is a consideration of how the changes occurring during and after ischemia, including gene activation and synthesis of new proteins, conspire to produce damaging levels of free radicals and peroxynitrite, to activate calpain and other Ca 2+ -driven processes that are damaging, and to initiate the apoptotic process. Although it is not fully established for all cases, the major driving force for the necrotic cell death process, and very possibly the other processes, appears to be the generation of free radicals and peroxynitrite. Effects of a large number of damaging changes can be explained on the basis of their ability to generate free radicals in early or late stages of damage. Several important issues are defined for future study. These include determining the triggers for apoptosis and autophagocytosis and establishing greater confidence in most of the cellular changes that are hypothesized to be involved in cell death. A very important outstanding issue is identifying the critical functional and structural changes caused by the perpetrators of cell death. These changes are responsible for cell death, and their identity and mechanisms of action are almost completely unknown.

Integrity signals

Registry

Crossref · 10.1152/physrev.1999.79.4.1431

Cites

11 of 11 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Lipton, P.
Affiliations
University of Wisconsin–Madison (US)
Corresponding author
Lipton, Peter
Venue
Physiological Reviews
Published
1999-01-10
Volume
79
Issue
4
Pages
1431-1568
ISSN
  • 0031-9333 (ISSN-L)
  • 1522-1210
OpenAlex
W2144918294
Cited by
3,043
References
11
Citations by year
2026: 38 · 2025: 56 · 2024: 75 · 2023: 78 · 2022: 89 · 2021: 83 · 2020: 81 · 2019: 78 · 2018: 94 · 2017: 108 · 2016: 99 · 2015: 96 · 2014: 129 · 2013: 147 · 2012: 165
FWCI
6.65
Type
journal article
Language
en
Open access
closed
Locations
  • Physiological Reviews (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Neuroscience › Neurology › Neurological Disorders and Treatments
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
Keywords
ischemic cell death, neuronal cell death, global cerebral ischemia, focal cerebral ischemia, necrosis, apoptosis, autophagy, ischemia-reperfusion injury, free radicals, peroxynitrite, calpain, phospholipase, glutamate excitotoxicity, mitochondrial damage, cytoskeleton, caspases, DNA laddering
MeSH terms
Animals, Brain, Brain Ischemia, Gene Expression Regulation, Humans, Models, Neurological, Neurons, Transcriptional Activation, Cell Death

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review