Related Experiment Videos
[Cell therapy for stroke: from myth to reality].
L Pellegrini1, Y Bennis, B Guillet
1Service d'anesthésie-réanimation 1, CHU de la Timone, Assistance publique-Hôpitaux de Marseille, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France. lionel.pellegrini@ap-hm.fr
Revue Neurologique
|December 19, 2012
Summary
Stem cell therapy offers a promising new avenue for stroke treatment, potentially replacing damaged cells and promoting brain repair. Further research is needed to address safety and technical aspects before widespread clinical application.
Area of Science:
- Neuroscience
- Regenerative Medicine
- Biomedical Engineering
Context:
- Stroke is a leading cause of death and disability globally.
- Current treatments for acute ischemic stroke have limitations, including a narrow therapeutic window.
- Stem cell therapy presents a novel approach to address stroke-induced brain damage and functional deficits.
Purpose:
- To review preclinical and clinical data on stem cell therapy for stroke.
- To investigate the potential of stem cells in replacing lost neurons and releasing trophic factors.
- To explore stem cells' ability to promote neurogenesis, angiogenesis, and reduce inflammation.
Summary:
- Stem cells can differentiate into neural cells and integrate into the stroke-injured brain.
- Transplanted stem cells can release trophic molecules that minimize damage and promote recovery.
- Stem cell therapy may improve neurological function by stimulating endogenous repair mechanisms.
Impact:
- Stem cell therapy holds promise for reducing brain damage and functional deficits post-stroke.
- It offers a potential strategy to restore neurological function by activating endogenous repair.
- Resolving long-term safety and technical challenges is crucial for clinical implementation.
Related Concept Videos
01:15Ischemic Stroke l: Introduction
Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
01:15Ischemic Stroke ll: Pathophysiology
An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
01:17Hemorrhagic Stroke l: Introduction
A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
01:29Hemorrhagic Stroke ll: Pathophysiology
A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...