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Human Neural Organoids for Studying Brain Cancer and Neurodegenerative Diseases
Published on: June 28, 2019
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If Human Brain Organoids Are the Answer to Understanding Dementia, What Are the Questions?
Lezanne Ooi1,2, Mirella Dottori1,3,4,5, Anthony L Cook6
1Illawarra Health and Medical Research Institute, Wollongong, New South Wales, Australia.
Summary
Human cerebral organoids offer potential for dementia research but face challenges. Scientists are exploring 10 key issues in modeling dementia in a dish using these brain organoids.
Area of Science:
- Neuroscience
- Stem Cell Biology
- Bioethics
Background:
- Public fascination with cerebral organoids (
Purpose of the Study:
- Investigate the potential of human cerebral organoids for understanding, treating, and preventing dementia.
- Evaluate if organoids offer an improvement over current animal models for dementia research.
Main Methods:
- Discussion of challenges in stem cell-derived in vitro modeling, particularly with organoids.
- Analysis of complexities in defining and understanding dementia for accurate modeling.
Main Results:
- Identification of 10 specific puzzles, issues, and stumbling blocks in modeling dementia using cerebral organoids.
- Acknowledgment of ethical considerations surrounding organoid research.
Conclusions:
- Cerebral organoids present a promising avenue for dementia research, but significant scientific and ethical hurdles remain.
- Further research is needed to refine organoid models and address the complexities of dementia pathology.
Related Concept Videos
01:30Dementia
Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual.
The progression of dementia is generally gradual.
01:22Dementia l: Introduction
Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...