We are at the cusp of a stem cell revolution.
Understanding and harnessing these unique cells may unlock breakthroughs in longevity and therapeutic solutions to all kinds of chronic diseases and regenerative opportunities.
Last month, I took a trip down to the Stem Cell Institute in Panama City with Dr. Bob Hariri (co-Founder of Human Longevity Inc.) to get stem cell injections in my knee and shoulder as an alternative to reconstructive surgery.
Aside from the injections, I had a chance to interview the directors of the institute, Dr. Jorge Paz Rodriguez and Dr. Neil Riordan, as well as Dr. Bob Hariri, to discuss the future of stem cell therapy.
In this post we will discuss:
- What are stem cells?
- Future of stem cell therapeutics
- Recent success stories with stem cells
What Are Stem Cells?
Stem cells are undifferentiated cells that can transform into specialized cells such as heart, neurons, liver, lung, skin and so on and can also divide to produce more stem cells.
In a child or young adult, these stem cells are in large supply, acting as a built-in repair system.
They are often summoned to the site of damage or inflammation to repair and restore normal function.
But as we age, our supply of stem cells begins to diminish as much as 100- to 10,000-fold in different tissues and organs.
In addition, stem cells undergo genetic mutations, which reduce their quality and effectiveness at renovating and repairing your body.
A useful analogy is to imagine your stem cells as a team of repairmen in your newly constructed mansion.
When the mansion is new and the repairmen are young, they can fix everything perfectly. But as the repairman age and reduce in number, your mansion eventually goes into disrepair and eventually crumbles.
But what if you could restore and rejuvenate your stem cell population?
One option is to extract and concentrate your own autologous adult stem cells from places like your adipose (or fat) tissue. But these stem cells are fewer in number and have undergone mutations from their original ‘software code.’
Many scientists and physicians now prefer an alternative source, obtaining stem cells from the placenta or umbilical cord, the leftovers of birth.
These stem cells, available in large supply and expressing the undamaged software of a newborn, can be injected into joints or administered intravenously to rejuvenate and revitalize.
One can think of these stem cells as chemical factories generating vital growth factors that can help to reduce inflammation, fight autoimmune disease, increase muscle mass, repair joints, and even revitalize skin and grow hair.
Future of Stem Cell Therapeutics
Over the last decade, the number of publications per year on stem cell-related research has increased 40x. The stem cell market is expected to reach $170 billion by 2020.
Rising R&D initiatives to develop therapeutic options for chronic diseases and growing demand for a regenerative treatment option are the most significant drivers of this budding industry.
Here are the top four areas in the space to watch:
1. Tissue engineering: Tissue engineering using the body’s own stem cells to repair, replace or augment diseased tissue is a rapidly evolving field. Patients with a variety of diseases may be treated with transplanted tissues and organs. However, we face a shortage of donor tissues and organs, which is worsening yearly because of the aging population. Scientists in the field of tissue engineering are applying the principles of cell transplantation, material science, and bioengineering to construct biological substitutes that will restore and maintain normal function in diseased and injured tissues. The stem cell field is also advancing rapidly, opening new options for cellular therapy and tissue engineering. Use of postnatal stem cells has the potential to significantly alter the perspective of tissue engineering.
2. Stem cell banking: "At your moment of birth, you are probably at the point of biological perfection,” says Dr. Bob Hariri. “Your system hasn't been exposed to all of those injurious stimuli, like electromagnetic radiation, chemicals, etc., and your biological software is uncorrupted.” Stem cell banking allows us to capture stem cells with your original, uncorrupted DNA at birth, replicate them into a large number of future dosages and then freeze those doses. Hariri discovered that in addition to cord blood (the blood found in the umbilical cord of a newborn), the placenta of a newborn is an organ very rich in stem cells. Rather than discard the leftovers of birth, placentas, if saved, may hold the key to a longer and healthier life. Hariri created a business called LifebankUSA, which provides private cell banking (FYI, this is where we banked our children's stem cells). Lifebank isolates, processes and cryopreserves cells (putting them into a deep freeze, about minus 180 degrees Celsius), keeping them in suspended animation at the most pristine state of their existence.
3. Clinical applications of MSCs: Mesenchymal stem cells, the major stem cells for cell therapy, have been used in the clinic for approximately 10 years. Currently, 344 registered clinical trials in different clinical trial phases are aimed at evaluating the potential of MSC-based cell therapy worldwide. From animal models to clinical trials, MSCs have afforded promise in the treatment of numerous diseases. The ability of MSCs to differentiate into osteoblasts, tenocytes and chondrocytes has attracted interest for their use in orthopedic settings. First, MSCs have been shown to be beneficial in treating bone disorders, such as osteogenesis imperfecta (OI) and hypophosphatasia. Other promising therapeutic avenues for MSCs include the treatment of autoimmune disease, cardiovascular disease, liver disease and cancer.
4. Parabiosis: A San Francisco-based startup called Ambrosia recently commenced one of the trials on parabiosis. Their protocol is simple: Healthy participants aged 35 and older get a transfusion of blood plasma from donors under 25, and researchers monitor their blood over the next two years for molecular indicators of health and aging. The study is patient-funded; participants, who range in age from late 30s through 80s, must pay $8,000 to take part, and live in or travel to Monterey for treatments and follow-up assessments. Ambrosia’s founder Jesse Karmazin became interested in launching a company around parabiosis after seeing impressive data from animals and studies conducted abroad in humans: In one trial after another, subjects experience a reversal of aging symptoms across every major organ system. "The effects seem to be almost permanent," he says. "It's almost like there's a resetting of gene expression." This company has recently received funding from Peter Thiel. Infusing your own cord blood stem cells as you age may have tremendous longevity benefits.
Recent Stem Cell Success Stories
Below are my top three stories demonstrating the incredible research and implications for stem cells over the past 12 months:
a) Stem Cells Able to Grow New Human Eyes: Biologists led by Kohji Nishida at Osaka University in Japan have discovered a new way to nurture and grow the tissues that make up the human eyeball. The scientists are able to grow retinas, corneas, the eye’s lens, and more using only a small sample of adult skin.
b) Stem Cell Injections Help Stroke Victims Walk Again: In a study out of Stanford, of 18 stroke victims who agreed to stem cells treatments, seven of them showed remarkable motor function improvements. This treatment could work for other neurodegenerative conditions such as Alzheimer’s disease, Parkinson’s and Lou Gehrig’s Disease.
c) Stem Cells Help Paralyzed Victim Gain Use of Arms: Doctors from the USC Neurorestoration Center and Keck Medicine of USC injected stem cells into the damaged cervical spine of a recently paralyzed 21-year-old man. Three months later, he showed dramatic improvement in sensation and movement of both arms.
As humans, we've just come to accept the notion that we are going to die.
However, the keys to our longevity and health may lie in our source code.
In the next two decades, stem cells are going to change medicine forever, extend life, and potentially save your life.
We truly live during the most exciting time ever in human history.
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