by admin | Jan 4, 2024 | Osteoarthritis, Exosomes, Mesenchymal Stem Cells, Stem Cell Research, Stem Cell Therapy
Osteoarthritis (OA) is a chronic joint condition that causes pain and lack of mobility through the progressive degradation of joint cartilage. While there are several current pharmaceutical, physical therapy, and surgical treatments to address the symptoms of OA, researchers are interested in developing new therapeutic treatment approaches to address the relentless progression of the condition.
Considering their documented biocompatibility, immunomodulatory properties, and ability to precisely target specific cells and tissues, exosomes have recently emerged as a promising therapeutic option as a drug delivery system (DDS) for the treatment of OA. Specifically, these exosome-based strategies have demonstrated a safe and effective way to enhance cartilage repair, mitigate inflammation, and alleviate the persistent pain associated with OA.
While the benefits of exosome-based DDSs have been demonstrated in numerous studies, according to the author of this review, the specific application of this option for the purpose of treating OA has not been sufficiently explored.
In this review, Lu et al. summarize the emerging developments surrounding exosome-based DDSs of OA and highlight the present challenges associated with this evolving therapeutic option.
Recent studies have demonstrated the benefit of using exosomes for the delivery of drugs designed to treat OA. Specifically, researchers have found that exosomes derived from mesenchymal stem cells (MSCs) are able to be effective carriers for the delivery of specific molecules that lead to the promotion of chondrogenesis and improvement in cartilage regeneration. These same exosomes have also demonstrated themselves to be effective carriers for the localized delivery of anti-inflammatory drugs known for their potent anti-inflammatory and immunosuppressive effects.
Other studies show the potential of exosomes as an effective way to deliver growth factors to the affected joint in a targeted and sustained manner. The same exosomes have also demonstrated promise as a platform for gene delivery to areas affected by OA; a few of the notable advantages include the ability to safeguard genetic material from degradation and enable targeted delivery to specific cells and tissues.
While there is seemingly unlimited potential for using exosomes as DDSs in OA treatment, Lu et al. also call attention to several technical challenges and limitations that need to be addressed in order to fully maximize their potential and to ensure their safe application. These challenges and limitations include figuring out how to obtain a consistent supply of high-quality exosomes, developing effective methods that allows for efficient loading and controlled release of therapeutic molecules within exosomes, and a current lack of comprehensive long-term data regarding the safety and biocompatibility of exosome-based therapies.
Despite these challenges and limitations, the authors conclude that exosomes have emerged as highly promising candidates for drug delivery in OA therapy and offer numerous advantages over conventional delivery systems.
Source: Jun Lu, Yan Zhang, Xinquan Yang, Hongmou Zhao, Harnessing exosomes as cutting-edge drug delivery systems for revolutionary osteoarthritis therapy, Biomedicine & Pharmacotherapy, Volume 165,2023,115135, ISSN 0753-3322, https://doi.org/10.1016/j.biopha.2023.115135.
by Stemedix | Dec 25, 2023 | Health Awareness, Mesenchymal Stem Cells, Regenerative Medicine, Stem Cell Research, Stem Cell Therapy, Stroke, Studies
According to the Centers for Disease Control and Prevention, more than 795,000 people have strokes every year in the United States, and about 610,000 of these are first or new strokes. Recovering from a stroke can be a complex process that involves many types of therapies, and one option that shows promise is stem cell therapy.
Stem cell therapy promotes growth factors and offers relief from inflammation, providing the possibility of healing the damage the stroke caused. Learn more about stem cell therapy when used for the recovery period after a stroke.
How Strokes Affect the Brain
A stroke is like a heart attack, except it takes place in your brain. It occurs when something blocks the blood supply to the brain, not allowing the organ to get the oxygen and nutrients it needs. If your brain doesn’t receive blood, its cells begin to die off or suffer damage, making it impossible for the organ to do its job.
Your brain controls everything your body does, including how you move and how you think, feel, and communicate. The results of a stroke are immediate.
The two main types of strokes are ischemic strokes and hemorrhagic strokes. Ischemic strokes are the most common type and are caused by blockages. They can occur when:
- A blood clot forms in the main brain artery.
- A blockage forms in the small blood vessels deep within the brain.
- A blood clot from the heart or another type of blockage travels via the bloodstream to an artery supplying the brain.
Hemorrhagic strokes occur when there’s bleeding in or around the brain. They can be the result of a blood vessel bursting in the brain, or a blood vessel on the surface of the brain may burst and leak blood in the area between the skull and the brain.
When you have a stroke, the areas of the brain it affects determine the kind of issues you can struggle with.
Some people experience weakness and paralysis in certain parts of their body, while others struggle with language and the processes of speaking or understanding what other people say. A stroke can even affect what your voice sounds like.
Other issues you may experience include:
- Balance problems
- Incontinence
- Trouble swallowing
- Visual problems
- Extreme fatigue
- Feeling pain
You may also struggle with mental processes like memory, concentration, understanding, and perception. Strokes can even affect your emotions.
Understanding Stem Cell Therapy: What Are Stem Cells?
Stem cells are the body’s building blocks. They are responsible for creating organs, tissues, and even your immune system. They are undifferentiated cells that can become and create specialized cell types. In other words, they can become any cell within the body, depending on where they’re placed.
Stem cells can also divide indefinitely, either creating other stem cells or specialized cells. When used to help the recovery period after a stroke, stem cells can differentiate into brain cells.
When they’re used in the brain, they don’t integrate and become neurons that reconstruct circuits. They instead start pumping out growth factors that enhance the recovery process, allowing new blood vessels and neurons to form. All of this helps make the brain more flexible, giving it a chance to recover after a stroke.
Neuroplasticity is what’s necessary for people who’ve suffered a stroke. It is the ability of the brain to rearrange its circuits, basing the organization on your behaviors.
Benefits of Stem Cell Therapy After a Stroke
Stem cell therapy is minimally invasive. You don’t have to worry about procedures that require long recovery processes or force you to spend time in the hospital. When you get stem cell therapy, the process is fast and can be done as an outpatient treatment.
Stem cells don’t just mask the symptoms of the damage the stroke caused. Experiencing pain after a stroke many times means turning to pain medications, which temporarily give you relief but also have unpleasant side effects. When you turn to stem cell therapy, your brain gets what it needs to start healing.
One of the most important things that stem cell therapy offers is the chance to relieve inflammation. When you suffer an injury of any kind, including a stroke, your body’s natural healing process causes inflammation.
This type of swelling, however, doesn’t allow a regular flow of blood to the injured area. Without the right degree of circulation, the damaged area doesn’t receive nutrients or oxygen, which makes healing more difficult. Stem cells help reduce inflammation, making the process of healing easier.
How the Stem Cell Therapy Process Works
Mesenchymal stem cells (MSCs) have been studied for their potential therapeutic applications in various medical conditions, including stroke. MSCs have several properties that make them attractive candidates for stroke therapy:
- MSCs possess anti-inflammatory properties that can help modulate the immune response and reduce inflammation in the brain following a stroke. Excessive inflammation is a key contributor to secondary damage after a stroke.
- MSCs can modulate the immune system, potentially suppressing harmful immune responses while promoting tissue repair and regeneration.
- MSCs secrete various growth factors and neurotrophic factors that support neuronal survival, growth, and differentiation. These factors can contribute to the repair and regeneration of damaged neural tissue.
- MSCs can stimulate the formation of new blood vessels (angiogenesis), which is crucial for supplying oxygen and nutrients to the damaged brain tissue.
- While the ability of MSCs to differentiate into neurons is limited, they may contribute to neural repair indirectly by interacting with the local environment and supporting the survival of existing neurons.
Is Regenerative Medicine Right for You?
Suffering a stroke can be devastating, leaving you with lasting damage and impacting your quality of life. Along with physical therapy and other treatments your doctor recommends, patients are exploring their options with stem cell therapy. Stem cell therapy and other regenerative medicine options offer the opportunity to give your brain the tools it needs to start healing. By helping reduce inflammation and bringing growth factors to the treatment area, stem cell therapy provides the chance to promote neuroplasticity and start healing.
by Stemedix | Dec 15, 2023
Orlando Multiple Sclerosis Center Multiple sclerosis is a disease that can cause disability of the central nervous system and brain. You can also find out more about the following: MS. The immune system attacks myelin, the protective sheath that covers the nerve...
by Stemedix | Dec 4, 2023 | Regenerative Medicine, Adipose, Age Management, Stem Cell Research, Stem Cell Therapy
No one wants to grow old. That is apparent from the huge amounts of money people spend on anti-aging products and services each year. These products and services include everything from lotions to more invasive options like plastic surgery.
However, healthier aging is possible without relying on invasive procedures. Stem cell rejuvenation, for example, offers promising results for people searching for ways of going through a healthier aging process.
Intrinsic vs. Extrinsic Aging: What to Know
Intrinsic aging refers to the various traits you inherited, including collagen and elastin production levels, hormonal balance, and more. The thinning lips or particular types of wrinkles you see on your parents, for example, are intrinsic aging traits, and you will likely deal with them as you age, too.
Intrinsic aging doesn’t just refer to visible signs of aging. It also includes the damage that occurs to organs and other body tissues as you get older. How fast an organ deteriorates and how fast tissues regenerate to keep up with the damage all depends on intrinsic aging.
Extrinsic aging refers to the things that you can control about aging. It includes lifestyle choices like smoking, not eating correctly, and so much more.
Both intrinsic and extrinsic factors in aging begin to accumulate, sending messages of aging to the core of stem cells. Thus, everything associated with aging can be seen through the lens of stem cells.
Understanding Stem Cell Rejuvenation
Introducing youthful stem cells into the body can make it easier to rejuvenate existing cells, helping the body age in a healthier way and even offering the chance to reverse some of the effects of aging.
As you age, your cells are not as efficient at replicating as they were when you were younger. This leads to cells getting damaged and dying off. Inefficiency in cell replication leads to aging bodies.
Stem cells are the cells that create specialized cells. They are your body’s building blocks. To combat the natural aging process, stem cells can help regenerate damaged tissue. This is because they can be made into various cell types.
Stem cells can also stimulate the production of growth factors and other molecules that trigger healing mechanisms, helping maintain healthy tissues. Chronic, low-grade inflammation is associated with aging, and stem cells help to reduce inflammation.
They do this by impacting the processes of white blood cells. Macrophages are white blood cells that are integral to the immune system. M1 macrophages can create inflammation, while M2 macrophages reduce it.
Stem cells help transform M1 macrophages into M2 macrophages. This stimulates the process of reducing inflammation.
Another way stem cells help battle against the aging process is by modulating the immune system. They have the potential to maintain a healthy immune system and delay the type of immune dysfunction that comes with age.
Oxidative stress also plays a role in aging. Free radicals damage cells, leading to many of the issues the aging process causes. Stem cells help combat the effects of oxidative stress.
Stem cells also have the potential to affect visible signs of aging. They can increase collagen production, which is vital for maintaining skin flexibility and firmness. As part of the aging process, your collagen production decreases, leading to the formation of fine lines and wrinkles.
The Process of Stem Cell Rejuvenation
Stem cell rejuvenation begins with choosing the right type of stem cells. The main stem cell type used is mesenchymal stem cells.
Mesenchymal stem cells (MSCs) are a type of multipotent stem cell that can differentiate into a variety of cell types. They are typically found in the stromal or connective tissue of various organs and tissues in the body.
MSCs were first identified in the bone marrow, but they can also be isolated from other tissues such as adipose (fat) tissue, and umbilical cord tissue.
MSCs possess immunomodulatory properties, meaning they can regulate the immune system. They can influence the activity of immune cells, such as T cells and macrophages, and have anti-inflammatory effects. This makes them potentially useful for treating conditions with immune system dysregulation.
MSCs exhibit low immunogenicity, meaning they are less likely to provoke an immune response when transplanted into a recipient. This characteristic makes them potentially suitable for allogeneic (from a donor) transplantation.
MSCs have been studied for their potential therapeutic applications in regenerative medicine, tissue engineering, and treatment of various diseases, such as autoimmune disorders, cardiovascular diseases, and musculoskeletal conditions.
If from a patient’s own tissues, the healthcare provider extracts the stem cells and prepares them for injection. They then inject the stem cells into the treatment area to provide relief from inflammation while encouraging your body to start regenerating tissues at the same time.
Because stem cells have the ability to endlessly duplicate themselves, the benefits of stem cell therapy for rejuvenation purposes can only improve over time.
Benefits of Stem Cell Rejuvenation
Stem cell rejuvenation procedures are minimally invasive. They require an extraction of stem cells and then an injection or the introduction of an IV. Other procedures that target aging can be significantly more invasive, leading to long recovery times.
The results continue to improve over time. This is because stem cells will go on to multiply where they were injected, potentially leading to more powerful results.
Stem cell rejuvenation can target the aging process at the cellular level, helping reduce inflammation and prevent oxidative stress. Stem cells may lead to an increase in collagen production as well, which helps combat fine lines and wrinkles.
Choosing Regenerative Medicine
Anti-aging solutions don’t have to involve invasive procedures or the reliance on options that take a very long time to work. Regenerative medicine treatments like stem cell therapy offer the chance to tackle the causes of aging at the cellular level.
Stem cells can offer anti-inflammatory results while also targeting free radicals and helping repair damaged tissues as well as damaged stem cells. By turning to regenerative medicine options, you have the chance to find rejuvenation solutions that can work.
by Stemedix | Nov 27, 2023 | Stem Cell Therapy, Autoimmune, Regenerative Medicine, Stem Cell Research
After suffering an injury or experiencing any kind of damage to your body, it’s common to worry about how long the recovery process will take and wonder how soon you’ll be back to your normal self. The answer greatly depends on your physical health, the type of injury you face, and the treatments you’re receiving.
By understanding the drawbacks some traditional treatment options offer, especially when speaking about orthopedic injuries, and knowing more about options like stem cell therapy, you’ll be better able to make informed decisions about your treatment. Learn more about how regenerative medicine options, such as stem cell therapy, can impact the recovery process.
Why Traditional Treatments Aren’t Always Right
In orthopedics, healing takes significant time. It’s important to note, however, that one of the most common treatment options — surgery — only extends the time necessary to fully heal.
The typical healing period for someone who has undergone orthopedic surgery, even minimally invasive options, is several weeks. And that time refers only to the healing needed so that you can be up and walking around again — it does not mean being back to your full strength or regaining your flexibility.
This is why it’s common to see professional athletes take several months to recover after an injury that required surgery. As you recover, you also have to take pain medications and other drugs.
If you don’t choose the surgery route, another traditional option is steroids. These relieve pain and reduce inflammation, but they cause more damage to the injured area. They can cause a decrease in blood supply to the bones in the joints, leading to them weakening. Also, they can potentially accelerate cartilage damage.
Turning to pain medications alone does help reduce pain, but because they don’t do anything to fix the problem causing the pain in the first place, all painkillers do is prolong the issue. Long-term use of pain medications has its own health risks, which you will want to weigh against the benefits the medications provide.
Taking steroids and turning to painkillers will generally only delay the need for surgery. They don’t stop the progression of the problem that causes pain, allowing it to worsen while masking the symptoms. And while surgery is often successful at treating the injury, its cost and invasiveness mean it is not a viable option for everyone.
Understanding Stem Cell Therapy
Stem cells are your body’s building blocks. They are the cells that divide to form daughter cells that become other stem or specialized cells.
Stem cells can generate healthy cells to replace those damaged or affected by disease. They can be guided to become specialized cells, helping repair and regenerate tissues throughout the body.
There are three types of stem cells — embryonic, perinatal, or adult stem cells. Embryonic stem cells come from donated embryos that are three to five days old and contain an inner cell mass. These are pluripotent cells, meaning they can become any type of cell in the body or more stem cells. Due to the controversy of using these stem cells, they are primarily used in research only.
Perinatal stem cells come from amniotic fluid or umbilical cord blood. These stem cells can transform into specialized cells.
Adult stem cells are present in most tissues in the adult body, including fat tissues, bone marrow, or umbilical cord tissue. Although their abilities are slightly more limited than those found in embryonic stem cells, they are still potent and can create all kinds of human cells. Adult stem cells break down into many different types, including:
- Mesenchymal stem cells
- Hematopoietic stem cells
- Skin stem cells
- Neural stem cells
- Epithelial stem cells
Stem cell therapy refers to the use of stem cells to promote the repair response of injured, diseased, or dysfunctional tissues. Stem cell therapy requires the preparation of the cells, which are usually obtained from your body and then injected into the treatment area.
How Stem Cell Therapy Helps
Stem cell therapy stimulates your body’s natural healing response. When a part of your body has inflammation, which is a natural response to an injury, it receives less blood.
The stem cell therapy reduces inflammation, which helps decrease pain while also improving blood circulation. More blood means the injured area receives the nutrients and oxygen it needs to heal itself.
Stem cell therapy allows for the management and healing of the problem. It doesn’t just mask the symptoms or delay the need for surgery; instead, it helps the formation of healthier tissues in the areas where they are needed.
Another benefit of stem cell therapy is that it doesn’t require any invasive procedures. All that is necessary is to extract stem cells from your body and enhance them before injecting them at the treatment site.
Unlike surgery, you don’t have to worry about a long recovery time or having to rely on help from others to manage everyday life as you heal. If you are someone who can’t go under general anesthesia, this is an option to consider. It is an outpatient procedure, allowing you to go home right after.
With stem cell therapy, you also don’t have to stress about participating in physical therapy for months, as you would have to do after surgery. It is an option that allows you to get back to your life as quickly as possible.
Relying on Regenerative Medicine
As one of the branches of medicine that holds promising potential, people are exploring regenerative medicine options like stem cell therapy. From autoimmune diseases to sports injuries and more, stem cell therapy, platelet-rich plasma, and other regenerative medicine options can help.
Not everyone can have surgery, and not everyone wants to depend on steroids and pain medications to feel relief.
By turning to an option that focuses on getting to the underlying problem causing the pain, you have an opportunity to see faster results without worrying about a long recovery process or dealing with general anesthesia. Give your body the chance to heal itself by considering stem cell therapy.
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