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posted by takyon on Friday October 19 2018, @06:29PM   Printer-friendly
from the hybrot-starter dept.

Submitted via IRC for chromas

Scientists grow functioning human neural networks in 3D from stem cells

A team of Tufts University-led researchers has developed three-dimensional (3D) human tissue culture models for the central nervous system that mimic structural and functional features of the brain and demonstrate neural activity sustained over a period of many months. With the ability to populate a 3D matrix of silk protein and collagen with cells from patients with Alzheimer's disease, Parkinson's disease, and other conditions, the tissue models allow for the exploration of cell interactions, disease progression and response to treatment. The development and characterization of the models are reported today in ACS Biomaterials Science & Engineering, a journal of the American Chemical Society.

The new 3D brain tissue models overcome a key challenge of previous models -the availability of human source neurons. This is due to the fact that neurological tissues are rarely removed from healthy patients and are usually only available post-mortem from diseased patients. The 3D tissue models are instead populated with human induced pluripotent stem cells (iPSCs) that can be derived from many sources, including patient skin. The iPSCs are generated by turning back the clock on cell development to their embryonic-like precursors. They can then be dialed forward again to any cell type, including neurons.

[...] Compared to growing and culturing cells in two dimensions, the three-dimensional matrix yields a significantly more complete mix of cells found in neural tissue, with the appropriate morphology and expression of receptors and neurotransmitters, according to the paper.

Also at ZDNet and Motherboard.

Functional and Sustainable 3D Human Neural Network Models from Pluripotent Stem Cells (DOI: 10.1021/acsbiomaterials.8b00622) (DX)


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  • (Score: 2) by deimtee on Sunday October 21 2018, @05:01AM

    by deimtee (3272) on Sunday October 21 2018, @05:01AM (#751567) Journal

    If you were going to use non-human cells I would go for either parrot or corvid. Both are remarkably smart for the size of their brains.

    --
    If you cough while drinking cheap red wine it really cleans out your sinuses.
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