exosome stem cell therapy

 exosome stem cell therapy (↓)
it seems very interesting. Tiny particle exosome from stem cell seems has more penetration power.
https://physicsworld.com/a/nanoparticles-regulate-harmful-immune-response-in-multiple-sclerosis/
https://phys.org/news/2019-06-nanotechnology-treatment-multiple-sclerosis.html
https://multiplesclerosisnewstoday.com/news-posts/2019/06/06/nanotechnology-treatment-shows-promise-against-multiple-sclerosis

used in stroke:
https://www.youtube.com/watch?v=86yljgFU6r0

https://www.genengnews.com/news/exosome-therapy-for-stroke-produces-full-recovery-in-animal-model/