A Long-Living Bioengineered Neural Tissue Platform to Study Neurodegeneration.
Macromol Biosci
; 20(3): e2000004, 2020 03.
Article
in En
| MEDLINE
| ID: mdl-32065736
ABSTRACT
The prevalence of dementia and other neurodegenerative diseases continues to rise as age demographics in the population shift, inspiring the development of long-term tissue culture systems with which to study chronic brain disease. Here, it is investigated whether a 3D bioengineered neural tissue model derived from human induced pluripotent stem cells (hiPSCs) can remain stable and functional for multiple years in culture. Silk-based scaffolds are seeded with neurons and glial cells derived from hiPSCs supplied by human donors who are either healthy or have been diagnosed with Alzheimer's disease. Cell retention and markers of stress remain stable for over 2 years. Diseased samples display decreased spontaneous electrical activity and a subset displays sporadic-like indicators of increased pathological ß-amyloid and tau markers characteristic of Alzheimer's disease with concomitant increases in oxidative stress. It can be concluded that the long-term stability of the platform is suited to study chronic brain disease including neurodegeneration.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Amyloid beta-Peptides
/
Tau Proteins
/
Silk
/
Tissue Scaffolds
/
Induced Pluripotent Stem Cells
/
Alzheimer Disease
/
Models, Biological
Type of study:
Prognostic_studies
/
Risk_factors_studies
Limits:
Humans
Language:
En
Journal:
Macromol Biosci
Journal subject:
BIOQUIMICA
Year:
2020
Document type:
Article
Affiliation country:
United States