Multiple sclerosis is a systemic autoimmune disease that affects the central nervous system, which includes both the brain and spinal cord.

In patients with MS, the immune system attacks the myelin sheath that protects nerve endings and connections. These inflammatory lesions are often visible on MRI scans and progressively impair communication between nerves and motor cells. This disease is particularly feared because it leads to the gradual loss of limb function and movement.

The exact symptoms experienced by a patient with multiple sclerosis vary depending on the areas affected by the autoimmune inflammatory process. However, as demyelinating lesions accumulate, the frequency and severity of disease flare-ups also increase. Over time, patients often develop secondary intractable disease.

Multiple sclerosis (MS) is primarily treated with conventional oral medications or injectable drugs.

Some patients with relapsing-remitting MS respond to these treatments and are able to reduce the frequency of recurrent attacks or prevent them altogether. Unfortunately, those with non-responding disease, as well as the majority of patients with primary or secondary progressive MS, do not respond to conventional therapies. Such patients are often considered incurable.

Autologous Hematopoietic Stem Cell Transplantation (HSCT)

Patients with severe or worsening multiple sclerosis (MS) who do not respond to standard treatments may benefit from immunosuppressive therapies. These treatments sometimes include intense conditioning to remove all mature lymphocytes, including those attacking the body’s own tissues. This process is often paired with autologous hematopoietic stem cell transplantation (HSCT). After the procedure, the patient’s immune system can rebuild itself with newly generated T cells that are trained to tolerate the body’s tissues, potentially stopping the progression of the disease. This process is similar to how self-tolerance is developed in early embryonic stages. However, HSCT is a highly complex treatment and carries significant risks, which limits its use.

Some combination therapies offer similar benefits. These approaches may use immunosuppressive treatments to decrease harmful lymphocytes, followed by growth factors to stimulate the release of stem cells from the bone marrow. These stem cells, along with newly developed healthy T cells, offer a less risky option compared to HSCT, often called “micro-HSCT.”

Mesenchymal Stem Cells in the Treatment of Multiple Sclerosis

Mesenchymal stem cells (MSCs) offer a safer alternative for treating multiple sclerosis due to their ability to reduce inflammation and regulate the immune system. These cells can be obtained from the patient’s own body or from donated placenta and umbilical cord tissue. MSCs are versatile and can potentially transform into oligodendrocytes, the cells responsible for producing myelin, which helps repair damaged nerves. Additionally, nanoparticles released by MSCs may encourage the patient’s own MSCs to repair myelin.

Innovative targeting methods enhance the potential of circulating MSCs to reach the central nervous system (CNS). For example:

  • Acoustic Shockwave Therapy (AST): Non-invasive low-energy shockwaves dilate blood vessels, increasing the flow of regulatory cells to the CNS.
  • Low-Level Laser Therapy (LLLT): Multi-color laser light stimulates circulating MSCs, enhancing their regenerative properties.
  • Deep Transcranial Magnetic Stimulation (dTMS): This device can complement MSC-based therapies to optimize patient outcomes.

The combination of these supportive technologies — AST, LLLT, and dTMS — can be applied to both patients receiving MSCs expanded ex vivo and those treated with enriched autologous multipotent stem cells.

Based on preclinical studies and clinical experience, a significant number of MS patients who were unresponsive to conventional treatments have shown improvement and, in some cases, were even cured with MSC-based outpatient therapies.

However, regulatory challenges remain. The use of MSCs enriched ex vivo in cell-processing centers is not yet approved by many regulatory authorities. As a result, mesenchymal stem cells for MS and other resistant autoimmune diseases can currently only be performed in our satellite clinics located in countries with more permissive regulations.

Our Scientific Research and Patents on Stem Cell Treatments

Scientific Research on Multiple Sclerosis
Scientific Researches on Neurological Disorders
Patents
  1. Karussis D, Grigoriadis S, Polyzoidou E, Grigoriadis N, Slavin S, Abramsky O. Neuroprotection in multiple sclerosis. Clin Neurol Neurosurg. 2006 Mar;108(3):250-4.
  2. Burt RK, Cohen B, Rose J, Petersen F, Oyama Y, Stefoski D, Katsamakis G, Carrier E, Kozak T, Muraro PA, Martin R, Hintzen R, Slavin S, Karussis D, Haggiag S, Voltarelli JC, Ellison GW, Jovanovic B, Popat U, McGuirk J, Statkute L, Verda L, Haas J, Arnold R. Hematopoietic stem cell transplantation for multiple sclerosis. Arch Neurol. 2005 Jun;62(6):860-4. Review.
  3. Prigozhina TB, Khitrin S, Elkin G, Eizik O, Morecki S, Slavin S. Mesenchymal stromal cells lose their immunosuppressive potential after allotransplantation. Exp Hematol. 2008 Oct;36(10):1370-6.
  4. Slavin S, Kurkalli BG, Karussis D. The potential use of adult stem cells for the treatment of multiple sclerosis and other neurodegenerative disorders. Clin Neurol Neurosurg. 2008 Nov;110(9):943-6.
  5. Karussis D, Kassis I, Kurkalli BG, Slavin S. Immunomodulation and neuroprotection with mesenchymal bone marrow stem cells (MSCs): a proposed treatment for multiple sclerosis and other neuroimmunological/neurodegenerative diseases. J Neurol Sci. 2008 Feb 15;265(1-2):131-5.
  6. Kassis I, Grigoriadis N, Gowda-Kurkalli B, Mizrachi-Kol R, Ben-Hur R, Slavin S, Abramsky O, Karussis D. Neuroprotection and immunomodulation with mesenchymal stem cells in chronic experimental autoimmune encephalomyelitis. Arch Neurol. 2008;65(6):753-761.
  7. Gurevitch O, Slavin S, Resnick I, Khitrin S, Feldman A. Mesenchymal progenitor cells in red and yellow bone marrow. Folia Biol (Praha). 2009;55(1):27-34.
  8. Karussis D, Karageorgiou C, Vaknin-Dembinsky A, Gowda-Kurkalli B, Gomori JM, Kassis I, Bulte JW, Petrou P, Ben-Hur T, Abramsky O, Slavin S. Safety and immunological effects of mesenchymal stem cell transplantation in patients with multiple sclerosis and amyotrophic lateral sclerosis. Arch Neurol. 2010 Oct;67(10):1187-94.
  9. Freedman MS, Bar-Or A, Atkins HL, Karussis D, Frassoni F, Lazarus H, Scolding N, Slavin S, Le Blanc K, Uccelli A. The therapeutic potential of mesenchymal stem cell transplantation as a treatment for multiple sclerosis: consensus report of the International MSCT Study Group. Mult Scler. 2010 Apr;16(4):503-10.
  10. Tichon A, Eitan E, Kurkalli BG, Braiman A, Gazit A, Slavin S, Beith-Yannai E, Priel E. Oxidative stress protection by novel telomerase activators in mesenchymal stem cells derived from healthy and diseased individuals. Curr Mol Med. 2013 Jul;13(6):1010-22.
  11. Kazimirsky G, Jiang W, Slavin S, Ziv-Av A, Brodie C. Mesenchymal stem cells enhance the oncolytic effect of Newcastle disease virus in glioma cells and glioma stem cells via the secretion of TRAIL. Stem Cell Res Ther. 2016 Oct 10;7(1):149.
  12. Ohtake T, Kobayashi S, Slavin S, Mochida Y, Ishioka K, Moriya H, Hidaka S, Matsuura R, Sumida M, Katagiri D, Noiri E, Okada K, Mizuno H, Tanaka R. Human Peripheral Blood Mononuclear Cells Incubated in Vasculogenic Conditioning Medium Dramatically Improve Ischemia/Reperfusion Acute Kidney Injury in Mice. Cell Transplantation 2018, Vol. 27(3) 520–530.
  13. Zilberman-Itskovich S, Abu-Hamad R, Zarura R, Sova M, Hachmo Y, Stark M, Neuman S, Slavin S, Efrati S. Human mesenchymal stromal cells ameliorate complement induced inflammatory cascade and improve renal functions in a rat model of ischemia-reperfusion induced acute kidney injury. PLoS One. 2019 Sep 12;14(9):e0222354. doi: 10.1371/journal.pone.0222354. eCollection 2019.
  1. Slavin S.  Successful treatment of autoimmune disease in (NZB/NZW)F1 female mice by using fractionated total lymphoid irradiation. Proc Natl Acad Sci USA 1979;76:5274-5276.
  2. Fuks Z, Slavin S.  The use of total lymphoid irradiation (TLI) as immunosuppressive therapy for organ allotransplantation and autoimmune diseases. Int J Rad Oncol Biol Phys 1981;7:79-82.
  3. Moscovitch M, Slavin S.  Regulation of the immune response in experimental models of autoimmune disorders. 1. Immunocompetence and transplantation tolerance in (NZB x NZW)F1 hybrid mice immunosuppressed with total lymphoid irradiation and in reconstituted bone marrow chimeras. J Clin Lab Immunol 1983;4:185-191.
  4. Moscovitch M, Slavin S.  Regulation of the immune response in experimental models of autoimmune disorders. 2. Induction of suppressor cells of the mixed lymphocyte culture in adult (NZB x NZW)F1 mice using total lymphoid irradiation. J Clin Lab Immunol 1983;11:67-74.
  5. Moscovitch M, Rosenmann E, Neeman Z, Slavin S.  Successful treatment of autoimmune manifestations in MRL/1 and MRL/n mice using total lymphoid irradiation (TLI). Exp Molec Pathol 1983;38:33-47.
  6. Rossini AA, Slavin S, Woda BA, Geisberg M, Like AA, Mordes JP. Total lymphoid irradiation prevents diabetes mellitus in the bio-breeding/Worcester (BB/W) rat. Diabetes 1984;33:543-547.
  7. Slavin S.  The use of total lymphoid irradiation (TLI) for the treatment of autoimmune disorders. Is J Med Sci 1988; 24:375-8.
  8. Karussis DM, Slavin S, Ben-Nun A, Ovadia H, Vourka-Karussis U, Lehmann D, Mizrachi-Kol R, Abramsky O. Chronic-relapsing experimental autoimmune encephalomyelitis (CR-EAE): treatment and indution of tolerance, with high dose cyclophosphamide followed by syngeneic bone marrow transplantation. J Neuroimmunol 1992;39:201-210.
  9. Karussis DM, Slavin S, Lehmann D, Mizrachi-Koll R, Abramsky O, Ben-Nun A. Prevention of experimental autoimmune encephalomyelitis and induction of tolerance with acute immunosuppression followed by syngeneic bone marrow transplantation. J Immunol 1992;148:1693-1698.
  10. Slavin S.  Treatment of life threatening autoimmune diseases with myeloablative doses of immunosuppressive agents and autologous bone marrow transplantation – rationale and experimental background. BMT 1993;12:85-88.
  11. Slavin S, Karussis D, Weiss L, Vourka-Karussis U, Abramsky O. Immunohematopoietic reconstitution by allogeneic and autologous bone marrow grafts as a means for induction of specific unresponsiveness to donor-specific allografts and modified self in autoimmune disorders. Transplant Proc 1993;25:1274-1275.
  12. Karussis DM, Vourka-Karussis U, Lehmann D, Abramsky O, Ben-Nun A, Slavin S. Successful treatment of autoimmunity in MRL/lpr mice with T-cell depleted syngeneic bone marrow transplantation. EOS J Immunol Immunopharm 1993:XIII:78-79.
  13. Karussis DM,  Lehmann D, Slavin S, Vourka-Karussis U, Mizrachi-Koll R, Ovadia H, Ben-Nun A, Kalland T, Abramsky O. Inhibition of acute, experimental autoimmune encephalomyelitis by the synthetic immunomodulator Linomide, Ann. Neurol 1993 34:(5);654-660.
  14. Slavin S, Karussis DM, Weiss L, Karussis-Vourka U and Abramsky O. Induction of tolerance to allo and self-antigens with syngeneic bone marrow transplantation. Transpl. Proc. 1993;25:1274-1275.
  15. Karussis DM, Vourka-Karussis U, Lehmann D, Abramsky O, Ben-Nun A, Slavin S. Immunomodulation of autoimmunity in MRL/1pr mice with syngeneic bone marrow transplantation (SBMT). Clin Exp Immunol1995;100(1):111-117.
  16. Blank M, Tomer Y, Slavin S, Shoenfeld Y. Induction of tolerance to experimental anti-Phospholipid syndrome (APS) by syngeneic bone marrow cell transplantation.  Scand. J. Immunol 1995;42:226-234.
  17. Slavin S. Autologous and allogeneic stem cell transplantation for the treatment of autoimmune diseases as a potential new approach.   The Decade of Autoimmunity.  (Yehuda Shoenfeld, Editor)  Elsevier. 1999:399-408.
  18. Slavin S, Nagler A.  Bone marrow transplantation for cancer and autoimmunity.  Cancer and Autoimmunity. Editors, Y. Shoenfeld and Eric Gershwin. Elsevier, 2000:409-421.
  19. Slavin S, Nagler A, Varadi G, Or R. Graft vs autoimmunity following allogeneic non-myeloablative blood stem cell transplantation in a patient with chronic myelogenous leukemia and severe systemic psoriasis and psoriatic polyarthritis. Exp Hematol 2000 Jul;28(7):853-7.
  20. Richard K. Burt, Walter Barr, Yu Oyama, Ann Traynor, Shimon Slavin.  Future strategies in hematopoietic stem cell transplantation for rheumatoid arthritis. J of Rheumatology. 2001;28(64);42-48.
  21. Burt R.K, Slavin S, Burns W.H, Marmont A.M.  Induction of tolerance in autoimmune diseases by hematopoietic stem cell transplantation: Getting closer to a cure?    Blood, 2001;99(3)768-784.
  22. Slavin S, Paveletic S, Burt B.  Allogeneic hematopoietic stem cell transplantation of rheumatoid arthritis.  2002.
  23. Burt R.K, Slavin S, Burns W.H, Marmont A.M.  Induction of tolerance in autoimmune diseases by hematopoietic stem cell transplantation: Getting closer to a cure?  Int J of Hematology 2002;76 (Suppl 1):226-247. Also presented at the 29th World Congress of the International Society of Hematology (2002 Seoul ISH).  Seoul, Korea.  August 24th-28th, 2002.
  24. Burt KR, Verda L, Oyama Y, Statkute L, Slavin S.  Non-myeloablative stem cell transplantation for autoimmune diseases.  Springer Semin Immun (2004) 26:57–69.
  25. Slavin S, Marmont A, Burt R. Allogeneic hematopoietic stem cell transplantation for autoimmune disease. Stem Cell therapy for Autoimmune Disease.  Editors: Richard K. Burt & Alberto M. Marmont. Publishers: Landes Bioscience, Texas, USA. 2004:474-478.
  26. Burt RK, Verda L, Oyama Y, Statkute L, Slavin S.  Non-myeloablative stem cell transplantation for autoimmune diseases. Chapter in Seminars and Immunopathology. Publisher Springer, Heidelberg, Germany. 2004;26:57-69.
  27. Burt R, Cohen B, Rose J, Petersen F, Oyama Y, Stefoski D, Katsamakis G, Carrier E, Kozak T, Muraro PA, Martin R, Hintzen R, Slavin S, Karussis D, Haggiag S, Voltarelli JC, Ellison GW, Jovanovic B, Popap U, McGuirk J, Statkute L, Verda L, Haas J, Arnold R.  Hematopoietic stem cell transplantation for multiple sclerosis. Arch Neurol. 2005;62(6):860-864.