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U.S. Transhumanist Party – PUTTING SCIENCE, HEALTH, & TECHNOLOGY AT THE FOREFRONT OF AMERICAN POLITICS

Exosome Therapy Repairs Stroke-Damaged Brain Tissue – Article by Steve Hill

Exosome Therapy Repairs Stroke-Damaged Brain Tissue – Article by Steve Hill

March 5, 2018 Steve Hill Comments 1 comment

Steve Hill


Editor’s Note: In this article, Mr. Steve Hill explains a new therapy that uses exosomes to repair damaged brain cells. The human trials are intended to begin in the year 2019. This article was originally published by the Life Extension Advocacy Foundation (LEAF).

                   ~ Kenneth Alum, Director of  Publication, U.S. Transhumanist Party, March 5, 2018

Today, we wanted to highlight more progress in a rapidly advancing area of medicine and talk about a new study that uses an exosomes-based approach for stroke treatment that repairs brain tissue.

A stem cell-based approach to treating stroke

Professor Steven Stice from the University of Georgia (UGA) and Nasrul Hoda of Augusta University led the team that developed AB126, a treatment that uses a type of extracellular vesicle known as an exosome [1]. Exosomes are small fluid-filled structures that are created by stem cells and, in the case of AB126, are produced by human neural stem cells.

Essentially, the researchers are isolating the beneficial signals given out by stem cells and using them rather than the stem cells as a therapy. This makes sense, as other cells react to these signals and change their behavior accordingly. We have talked about the therapeutic potential of extracellular vesicles, particularly exosomes, in a previous article.

An exosome can remain hidden in the bloodstream, carry multiple doses, and store and administer treatment, and its small size allows it to cross barriers that cells cannot. This is ideal for delivering therapies to the brain, as it crosses the blood-brain barrier and other checkpoints in the body.

After the administration of AB126,  the researchers used MRI scans to assess brain atrophy rates in an animal model of stroke. The scans showed around 35 percent decrease in the size of injury and a 50 percent reduction in brain tissue loss. These results were also replicated by Franklin West, associate professor of animal and dairy science at UGA, in a pig model of stroke.

Within days, the researchers observed improved mobility, better balance, and measurable behavioral benefits in treated animal models of stroke.

Based on the successful results of these preclinical tests, the next step is to take this therapy to human clinical trials by 2019 via ArunA Biomedical, a UGA startup company. The company plans to expand its scope beyond stroke, and preclinical studies in epilepsy, traumatic brain, and spinal cord injuries begin later this year.

Conclusion

This is another example of the recent interest in using extracellular vesicles, such as exosomes, as therapies rather than stem cells themselves. Multiple research groups are now developing these therapies to treat various age-related diseases, so we can almost certainly expect to hear more in the near future.

The use of extracellular vesicles also holds the promise of being more cost-effective from the point of view of storage, logistics, manufacture, and delivery. With the first clinical trials now in the cards for the near future, it will be interesting to see how this develops in the next few years.

References

[1] Webb, R. L., Kaiser, E. E., Scoville, S. L., Thompson, T. A., Fatima, S., Pandya, C., … & Baban, B. (2017). Human Neural Stem Cell Extracellular Vesicles Improve Tissue and Functional Recovery in the Murine Thromboembolic Stroke Model. Translational stroke research, 1-10.

About  Steve Hill

As a scientific writer and a devoted advocate of healthy longevity technologies Steve has provided the community with multiple educational articles, interviews and podcasts, helping the general public to better understand aging and the means to modify its dynamics. His materials can be found at H+ Magazine, Longevity reporter, Psychology Today and Singularity Weblog. He is a co-author of the book “Aging Prevention for All” – a guide for the general public exploring evidence-based means to extend healthy life (in press).

About LIFE EXTENSION ADVOCACY FOUNDATION (LEAF)

In 2014, the Life Extension Advocacy Foundation was established as a 501(c)(3) non-profit organization dedicated to promoting increased healthy human lifespan through fiscally sponsoring longevity research projects and raising awareness regarding the societal benefits of life extension. In 2015 they launched Lifespan.io, the first nonprofit crowdfunding platform focused on the biomedical research of aging.

They believe that this will enable the general public to influence the pace of research directly. To date they have successfully supported four research projects aimed at investigating different processes of aging and developing therapies to treat age-related diseases.

The LEAF team organizes educational events, takes part in different public and scientific conferences, and actively engages with the public on social media in order to help disseminate this crucial information. They initiate public dialogue aimed at regulatory improvement in the fields related to rejuvenation biotechnology.


Guest Articles
AB126, ArunA Biomedical, blood-brain barrier, brain, exosome, Franklin West, LEAF, life extension, Life Extension Advocacy Foundation, longevity, Nasrul Hoda, rejuvenation, research, stem cells, Steve Hill, Steven Stice, stroke

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One thought on “Exosome Therapy Repairs Stroke-Damaged Brain Tissue – Article by Steve Hill”

  1. RC Silk says:
    March 9, 2018 at 6:46 pm

    Sign me up!!!

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