Treating Spinal Cord Injuries with Intravenous Infusion of Auto Serum-Expanded Autologous Mesenchymal Stem Cells

Treating Spinal Cord Injuries with Intravenous Infusion of Auto Serum-Expanded Autologous Mesenchymal Stem Cells

Spinal cord injury (SCI) continues to be a significant cause of disability. In fact, it is estimated that annual SCIs account for nearly 18,000 injuries in the United States and between 250,000 and 500,000 injuries worldwide[1]. Additionally, an estimated 294,000 people in the United States are currently living with some form of SCI, with males accounting for nearly 80% of all SCI injuries[2].

Despite a large number of SCIs occurring each year, therapeutic treatment options remain limited and primarily ineffective. Recently, improvements in the understanding of the promising role stem cells play in the healing process have led to significant developments in improving healing and restoring function lost as a result of Spinal Cord Injuries; specifically, the therapeutic treatment of SCIs with mesenchymal stem cells (MSCs) in animal models has demonstrated promising results.

Building off of the success observed in previous studies, Honmou Et al.’s recent study (2021) sought to further explore the safety and feasibility of intravenous infusion of MSCs is SCI patients; the study also explored the patients’ functional status after receiving IV infusion of MSC.

Specifically, Honmou Et al.’s phase 2 study delivered a single infusion of autologous MSCs cultured in auto-serum, to 13 SCI patients. After infusion, the study assessed the feasibility and safety of this procedure over a six-month period by using the American Spinal Injury Association Impairment Scale (ASIA) and International Standards for Neurological Function Classification of Spinal Cord (ISCSCI-92). The researchers also used the Spinal Cord Independence Measure (SCIM-III) as a way to assess the ability of daily living after receiving MSCs infusion.

Although this was a small, early, unblinded, and uncontrolled study, the researchers point out that the intravenous infusion of autologous bone marrow-derived MSCs, expanded in auto-serum, into SCI patients appeared to be safe and feasible with none of the patients exhibiting abnormal cell growth or neurological deterioration. Additionally, and similar to what’s been observed in prior studies conducted on animal models, the findings appear to support the rapid improvement of neurological function within a few days after IV infusion. The researchers also pointed out this study had several limitations, including potential observer bias and potential improvements resulting from surgical interventions.

The researchers point out that although the specific mechanism for this observed improvement in neurological status is not clear, several studies suggest that secreted neurotrophic factors from MCSs might be associated with the rapid improvements. Additional studies have also demonstrated that IV infusion of MSCs in patients with SCIs might also encourage changes in gene expression that encourage functional improvements, an observation that was consistent with the findings of this study.

In conclusion, the authors reiterate that the observed safety, feasibility, and initial indications of functional improvement after MSC infusion support the importance of additional, larger future studies designed to examine potential efficiencies in patients with SCI. Source:  (2021, February 18). Intravenous Infusion of Auto Serum-expanded … – ScienceDirect.com. Retrieved March 23, 2021, from https://www.sciencedirect.com/science/article/pii/S0303846721000925#!


[1] “Spinal cord injury – WHO | World Health Organization.” 19 Nov. 2013, https://www.who.int/news-room/fact-sheets/detail/spinal-cord-injury.

[2] “(SCI) Facts and Figures at a Glance – National Spinal Cord Injury ….” https://www.nscisc.uab.edu/PublicDocuments/fact_figures_docs/Facts%202015.pdf.

Using Bone Marrow-Derived Stem Cells to Heal Osteoarthritis in the Knee

Using Bone Marrow-Derived Stem Cells to Heal Osteoarthritis in the Knee

Osteoarthritis (OA), the most common form of arthritis, affects over 32 million people in the U.S. each year. Characterized by a progressive degeneration of cartilage resulting in pain, stiffness, and swelling in the joints, and most frequently occurring in the hands, hips, and knees, OA has no pharmacological, biological, or surgical treatment to prevent progression of the condition. The authors of this case report focus specifically on potential treatment options for OA of the knee.

With the emergence of stem cell-based therapies for a multitude of health conditions, stem cells, and specifically mesenchymal stem cells (MSCs), have demonstrated immunosuppressive activities that could prove beneficial in supporting the regeneration of cartilage tissue in and around joints in the body.

Research has demonstrated that MSCs are effective in differentiating into essential connective tissues like fat, cartilage, and bone; MSCs have also demonstrated immunomodulatory and anti-inflammatory effects, the ability to self-renew, and plasticity, making MSCs a potentially powerful treatment of OA in the knee (and other parts of the body).

This specific case study details cartilage regeneration in the knee of a 47-year-old woman diagnosed with OA when treated with bone marrow-derived MSC cells. For the course of this treatment, autologous MSCs were collected from bone marrow harvested from the iliac crest.  After processing and preparing the MSCs, the sample was confirmed to be free of microbial contamination and was prepared and transplanted into the patient’s knee joint.

Periodic follow-ups with the patient revealed no local or systemic adverse events associated with the MSC transplant procedure. The authors of this case report found that the patient’s functional status of her knee, the number of stairs she could climb, reported pain on a visual analog scale, and walking distance all improved in the two months following the MSC transplant procedure.

Additionally, twelve months after the transplant, the patient demonstrated a positive change in WOMAC (3 to 2), a continued increase in the number of stairs climbed (5 increasing to 50), and visual analog (80 mm to 11 mm). The patient also demonstrated improved gelling (or the amount of time it takes for synovial fluid to thicken as a result of rest) in the knee from 8 minutes to 30 minutes; knee flexion also increased 20° (100° to 120°). Periodic MRIs taken after the transplant procedure demonstrated an extension of the repaired tissue over the subchondral bone.

Mehrabani, et al. conclude that MSC transplantation for treating OA in the knee appears to be a simple, safe, effective, and reliable treatment option that has demonstrated pain relief, improved quality of life, and significantly improved quality of cartilage without hospitalization, pharmaceuticals, or surgery.

Source:  (n.d.). The Healing Effect of Bone Marrow-Derived Stem Cells … – NCBI – NIH.; from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5003953/

Treating Autoimmune Disease Through Adult Stem Cell Therapy

Treating Autoimmune Disease Through Adult Stem Cell Therapy

Autoimmune diseases occur as a result of the body’s natural immune system mistakenly attacking and damaging healthy, normal cells and tissue. Currently, an estimated 60 different autoimmune diseases affect between 5 and 8 percent of the U.S. population[1]; making it one of the largest disease burdens faced today.

Divided into two distinct categories, autoimmune diseases are typically classified as organ-specific or systemic autoimmune diseases. Systemic autoimmune diseases include systemic lupus erythematosus (SLE), rheumatoid arthritis, systemic sclerosis, and polymyositis; organ-specific autoimmune diseases include Hashimoto thyroiditis, Graves disease, type 1 insulin-dependent diabetes, and pernicious anemia.

Currently, most cases of autoimmune disease are treated with corticosteroids, cyclophosphamide, azathioprine, and/or methotrexate. While all of these medications have been demonstrated to be effective in treating autoimmune disease in some capacity, improvement is not universal; these medications have also been associated with known toxicities.

As research continues to explore the immune system and various autoimmune disorders, it appears that adult stem cells offer promise for effective, non-pharmacological treatment of autoimmune disease.

The author of this review points out that while many animal studies exploring the potential benefits of autologous and allogeneic hematopoietic stem cells (HSCT) exist, the danger associated with allogeneic bone marrow transplants has limited studying these transplants to only those subjects with severe autoimmune disorders that are not responding to other, more proven treatments.

The review also focuses on the treatment of autoimmune disease with mesenchymal stem cells (MSCs). Specifically, the author points to several in vitro studies demonstrating the immunomodulatory properties of MSCs as well as their immunosuppressive effects on MHC-mismatched lymphocyte proliferation. This form of MSC transplantation produces relatively short effects but has proven to be profoundly different from HSCT. Specifically, this procedure does not require the patient to be immunosuppressed in advance of transplantation and produces a therapeutic effect in the affected organ as a result of the homing of MSCs. Studies have demonstrated that MSC transplant has reversed multiorgan dysfunction in SLE mice and humans while also demonstrating stable 12 – 18-month disease remission. As a result, further clinical trials exploring autologous bone marrow MSC (BM-MSC) are currently ongoing.

With the difficulty and risk associated with BM-MSC transplantation, the author points out that since adipose tissue is readily available and easily obtainable, adipose tissue-derived MSC (AT-MSC) are being explored for their potential as a regenerative treatment and wound healing option. Early studies have demonstrated AT-MSC to have immunosuppressive properties that reduce experimental autoimmune encephalomyelitis (EAE), decrease spinal cord inflammation, and significantly ameliorate the severity of colitis and arthritis. In fact, there is convincing evidence indicating that AT-MSC transplant produces therapeutic results comparable to MSCs derived from bone marrow.

At the same time, gene therapy research exploring the use of stem cells as a vehicle in autoimmune disease demonstrated delivery of brain-derived neurotrophic factor (BDNF) genes in an animal model of multiple sclerosis using bone marrow stem cells and human insulin gene transfected BM-MSC therapy in murine type 1 insulin-dependent diabetes has demonstrated positive results, including decreased blood glucose level, improved secretion of human insulin in serum and liver, and delayed onset and clinical severity of EAE.

As research continues to explore the benefits of adult stem cell therapy for the treatment of autoimmune disease, and with genetic therapy showing promising treatment options, researchers are optimistic of the benefits provided through a combination of stem cell and gene therapy.

Source:  (n.d.). Adult Stem Cell Therapy for Autoimmune Disease – NCBI – NIH. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4021767/


[1] “Autoimmune Disease – National Stem Cell Foundation.” https://nationalstemcellfoundation.org/glossary/autoimmune-disease/. Accessed 9 Mar. 2021.

Mesenchymal Stem Cell-Based Therapy: Potential Benefits For Osteoarthritis

Mesenchymal Stem Cell-Based Therapy: Potential Benefits For Osteoarthritis

Affecting over 52 million people, or nearly 25% of the adult patients, osteoarthritis (OA) continues to be the leading cause of disability for people in the United States. Occurring as a result of the protective cartilage, or articular cartilage, that cushions the ends of the bones breaking down, OA can occur in any joint, but most often causes pain, stiffness, and swelling in the hands, feet, knees, hips, and lower back[1][2].

To date, current conventional treatments employing pharmacological treatments have been developed to temporarily address the symptoms (i.e.: relieve pain, stiffness, and swelling) of OA, but have proven ineffective in preventing the onset, progression, or long-term symptoms of the condition. While there are a number of reasons conventional OA therapies have demonstrated themselves to be ineffective, the primary reason is that they do not regenerate the cartilage required to prevent the progressive degenerative process associated with OA.

However, recent studies exploring mesenchymal stem cell-based therapy for OA have demonstrated several potential benefits, including regenerating lost cartilage, slowing cartilage degeneration, pain relief, and improved patient mobility.

Currently, there have been a number of advancements in using cellular-based therapy for OA, including techniques such as autologous chondrocyte implantation (ACI) and treatment with embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs).  While all of these treatments have shown promise in the regeneration of cartilage, each has its own issues which limit its effectiveness and/or availability.

Of the cellular based therapies being evaluated, none demonstrate as much promise, with so few drawbacks, as treatment of OA-related cartridge degeneration with mesenchymal stem cells (MSCs). Sourced from a variety of tissue, including adipose, bone marrow, and synovium, MSC have demonstrated to be progenitor cells with the ability to  differentiate into cartilage. Because of this, coupled with the low-level of risk and ease of production, MSCs are considered to be a realistic option, holding the best potential treatment of OA.

While each requires further study, a number of studies, both animal and human, exploring the effectiveness of MSCs gathered from adipose tissue, bone marrow, and synovium have all demonstrated varying degrees of success related to regeneration of cartilage lost as a result of OA progression.

As a result of the benefits resulting from previous studies examining the role of MSCs as a cell-based treatment for treating OA-induced cartilage degeneration and because of the effectiveness and high cost associated with current pharmacological-based treatments, the authors of this review call for further clinical study into  more innovative and effective modalities to demonstrate the efficacy, safety, and benefits of MSCs in treating patients with OA.

Article Source: (2016, August 10). Therapeutic potential of mesenchymal stem cell based therapy for …. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4980326/


[1] “Osteoarthritis – Symptoms and causes ….” 22 Feb. 2020, https://www.mayoclinic.org/diseases-conditions/osteoarthritis/symptoms-causes/syc-20351925.

[2] “Osteoarthritis – Arthritis Foundation.” https://www.arthritis.org/diseases/osteoarthritis.

Examining the Safety and Efficacy of Stem Cell Therapy Treating Neural Damage in Patients with Multiple Sclerosis

Examining the Safety and Efficacy of Stem Cell Therapy Treating Neural Damage in Patients with Multiple Sclerosis

Multiple sclerosis (MS) is a progressive and disabling autoimmune disease that affects the brain and central nervous system.  As MS progresses, the body’s immune system attacks the protective sheath (myelin) that covers nerve fibers resulting in axonal damage and loss that eventually results in paralysis of the limbs; the condition also contributes to a number of other serious communication problems between your brain and the rest of the body[1], including numbness, tremors, and issues affecting vision and speech.

To date, no effective therapeutic medication or treatment for MS exists and medication prescribed for this disease is done so for the purpose of alleviating symptoms and chronic inflammation associated with it; several of these drugs, and especially those with immunomodulatory and immunosuppressive properties have demonstrated to be only partly effective in easing autoimmune reactions.

While current immunotherapies have demonstrated to be effective in reducing the reactivity of autoimmune anti-myelin and MS relapse rate, there remains no approved method for treating or slowing progression of the disease or for repairing myelin damaged as a result of it.  As a result, Bejargafshe et al. point out that finding an appropriate clinical treatment for improvement of the neurological damage caused by MS is essential.

The authors also call attention to the numerous studies demonstrating the benefits of mesenchymal stem cells (MSCs) in creating a number of different of autoimmune conditions, including modulating the immune response in MS patients. MSCs are specific multipotent and self-renewing stem cells that have demonstrated to be differentiated into several cell types and can be easily isolated from bone marrow and adipose tissue; this means the patient can serve as a donor for him/herself without risk of rejection. 

Bejargafshe et al.’s study reviews several clinical trials evaluating the effectiveness of MSC therapy for MS patients, including several specific clinical trials examining the effectiveness of bone marrow-derived MSCs, adipose-derived MSCs (ADMSCs), USMSCs, human fetal-derived neural stem cells (hNSCs), MSC-derived neural progenitors (MSC-NPs), and hematopoietic stem cells (HSC).

The authors of this study conclude that cell-based therapies, including those mentioned in this study, have shown to repair the CNS, protect against inflammation caused by an autoimmune response, are safe and effective, and demonstrate new opportunities for preventing and treating a wide range of neurodegenerative diseases, including MS.

In addition, the authors concluded that while nearly all of the various types of stem cells evaluated provide benefits, adult MSCs, because of their safety and ease of extraction, are the most common source of stem cells used for this application, with bone marrow being the major source of MSCs used. Clinical trials indicate the observed multipotency and highly-differentiated potential of UC stem cells also make them a viable treatment option, but the need to maintain a supply of UC stem cells through cell banks limit their appeal on the basis of availability. 

Interestingly, among the potential cell therapies evaluated, adult adipose stem cells (ASC) appear to be among the most suitable cells for the treatment of MS. In addition to being very safe to use, adult ASCs are easy to separate from adipose tissue, are available from several different parts of the body, are available in a large concentration per unit area, and relatively inexpensive when used in a stem cell transfusion. Considering the benefits listed above, as well as those observed in clinical studies, the authors conclude that ASCs and HSCs are appropriate candidates for the treatment of MS.

Source: (2019, December 27). Safety and efficacy of stem cell therapy for treatment of neural …. 1, from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6987330/


[1] “Multiple sclerosis – Symptoms and causes ….” 12 Jun. 2020, https://www.mayoclinic.org/diseases-conditions/multiple-sclerosis/symptoms-causes/syc-20350269.

The Benefits of Autologous Mesenchymal Stem Cell Transplant in Active Progressive Multiple Sclerosis

The Benefits of Autologous Mesenchymal Stem Cell Transplant in Active Progressive Multiple Sclerosis

Progressive multiple sclerosis is a significant disruptive neurodegenerative disease that interferes with the brain’s ability to control the body; the condition continues to get worse over time and, to date, has no known therapeutic treatment or cure. 

Petrou Et. Al’s double-blind clinical trial examined the therapeutic efficacy of mesenchymal stem cell (MSC) transplantation in active progressive multiple sclerosis and explored the most favorable route of cell delivery (intravenous or intrathecal injections).

Prior to this study, previous trials examining various types of MSC administration in the therapeutic treatment of multiple sclerosis have demonstrated the clinical safety of MSC administration but have not identified treatments to suppress central nervous system (CNS) inflammation associated with the progression of diseases like progressive multiple sclerosis. 

Several studies have also demonstrated that CNS loses the ability to repair and regenerate over time. Considering that stem cells, and specifically MSCs, have demonstrated to provide additional benefits, including immunomodulatory and neurotrophic effects, when used in the treatment of stroke and multi-system atrophy, they appear to be a viable potential therapeutic treatment for active progressive multiple sclerosis.  

For the purposes of Petrou Et. Al’s study, a total of 48 participants with a mean disease (active progressive multiple sclerosis) duration of 12.70 years were included as part of this study either as part of a placebo group, MSC-IV group, or MSC-IT group; selected treatment was applied at 3-month and 6-month marks of the study.

At the conclusion of this study, the authors report no serious, treatment-related adverse effects were observed and significantly fewer patients in the MSC-IT and MSC-IV groups experienced treatment failure when compared to the placebo group. 

By reviewing changes observed in ambulation index, the sum of functional scores, 25-foot timed walking test, PASAT and OWAT/KAVE cognitive test, and the rate of change in T2 lesion load on MRI observed after the 6th-month treatment, researchers also found beneficial effects in both the MSC-IT and MSC-IV groups.

It appears that repeated intrathecal injection of MSC during the second round of treatment (Month 6) significantly improved the effects measured during the first round of similar treatment (Month 3); similar, but less significant benefits were also observed in the MSC-IV group.  Specifically, researchers report that these observed benefits may indicate the involvement of immunomodulatory and neuroprotective mechanisms.

Of particular interest is the fact that the benefits with clinical significance were observed in participants with progressive multiple sclerosis found to be previously unresponsive to conventional immunotherapies and currently with limited treatment options.

In conclusion, this study found short-term clinical efficacy and perhaps neuroprotection by administration of MSCs to participants with progressive multiple sclerosis. The researchers also found that while repeated injections of both MSC-IT and MSC-IV produced beneficial effects, intrathecal administration appears to produce more clinically significant and observable benefits than MSC-IV. 

These findings are recommended for use in the design of future studies examining the impact of cell therapy on neurodegeneration and neuronal regeneration and warrant Phase III study to confirm the therapeutic potential of cellular therapy in neurodegenerative and neuroinflammatory diseases, including multiple sclerosis.

Source: (2020, December 1). Beneficial effects of autologous mesenchymal stem … – PubMed., from https://pubmed.ncbi.nlm.nih.gov/33253391/

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