mesenchymal stem cells

March 7, 2022 News by Marta Figueiredo, PhD

Stem Cell Therapy NG-01 Shows Neuroprotective Effects in Trial

Administering the stem cell therapy NG-01 ā€” designed to have neuroprotective and neuro-regenerative properties ā€” directly into the spinal canal can significantly reduce the levels of neurofilament light chain (NfL), a neuronal damage biomarker, in people with active, progressive forms of multiple sclerosis (MS). These are the new…

November 23, 2021 News by Yedida Y Bogachkov PhD

First Patient Dosed in Phase 1 Trial of IMS001 Therapy

ImStem Biotechnology announced that the first patient in its Phase 1 clinical trial for IMS001, an investigational treatment for multiple sclerosis (MS), has been dosed at the Shepherd Center in Atlanta. The trial (NCT04956744) is recruiting participants with an MS diagnosis ages 18 to 65. More information…

November 2, 2017 News by Janet Stewart, MSc

Myelin-producing Brain Cells Regenerated Using Stem Cells in Early Study

Researchers, using two different kinds of stem cells in rats, were able to regenerate oligodendrocytes ā€” myelin-producing brain cells that are defective in multiple sclerosis (MS). They were also able to grow adult neural stem cells in laboratory cultures and prod them to develop into oligodendrocytes. The exact cause of MS is unknown ā€” including what triggers attacks on myelin ā€” but the loss of oligodendrocytes seen in the disease is known to play a role in its progression. Nerve cells in the brain send their signals through their axons, long arm-like structures that extend out from the centers of the nerve cells. The signals are electrical pulses transmitted along the length of an axon.Ā Oligodendrocytes provide the insulation ā€” called myelin ā€” that wraps around axons, speeding up the transmission of electrical signals through the nerve cells. Loss or malfunction of oligodendrocytes means that signaling in the brain is impaired. It is this slowing of signaling that is thought to cause MS symptoms. Researchers from the Heinrich-Heine-University, Germany, with support from British and Chilean colleagues, designed a novel approach to regenerate oligodendrocytes, according to a press release. Stem cells are immature cells that give rise to differentiated cells ā€” cells with a specific function, such as oligodendrocytes. Adult neural stem cellsĀ can divide and produce nerve cells and other brain cells, including oligodendrocytes. However, in normal circumstances, the regeneration of cells that take place in the human brain is not enough to repair the damage seen in MS. The researchers set out to find conditions that would promote the differentiation of adult human NSCs into oligodendrocytes. They discovered that another type of stem cell, mesenchymal stem cells (MSCs), could provide the signals required. First they tested their system in rats, and found that by using factors produced by human MSCs, they could induce the growth of new oligodendrocytes in the animals. Then they grew adult NSCs in the laboratory, and using the same factors from human MSCs were able to promote the establishment of oligodendrocytes in the cultured cells.

July 28, 2017 News by Patricia Silva, PhD

Cell-Based Therapies in MS Remain Experimental, Expert Group Argues in Review Article

A group of experts recently concluded that clinical trials are the best way to explore whether cell-based therapies are viable options for treating multiple sclerosis. In a newly published article, MS researchers reviewed evidence on a range of cell therapies, including stem cell transplants and delivery or stimulation of various cell types. Clinical trials, the panel argued, would be the optimal way to examine which types of cells should be used, how they should be delivered, and the types and disease stages the treatments are suitable for. The article focused on four types of cell-based treatments: autologous stem cell transplants, mesenchymal and related stem cell transplants, use of drugs to manipulate stem cells in the body to boost their ability to repair, and transplants of oligodendrocyte progenitor cells to trigger new myelin production. Loss of the myelin that protects neurons is a hallmark of MS. Such treatments hold promise to attain what current disease-modifying therapies in MS have not: halting the disease without lifelong treatment that has potential side effects, and regenerating damaged tissue. In addition to reviewing the evidence surrounding cell-based treatments, the expert group focused on the availability of the treatment options outside of controlled trials. ā€œMedia attention has resulted in some cases of misrepresentation and exaggeration of therapeutic claims for cell-based therapies for multiple sclerosis and other diseases,ā€ the team wrote. This has caused patients to seek the treatments ā€” paying out-of-pocket ā€” at unregulated clinics. The panel noted that several drugs in development, including opicinumab, are aimed at promoting remyelination. In addition, drugs that are already approved for other conditions might have remyelinating properties, and might be repurposed to treat MS. Although studies are ongoing, the panel noted that it is unclear if the drugs do promote remyelination. Despite ongoing research and ā€” in some cases ā€” clinical use of cell-based therapies for MS, these treatments should be considered experimental, the expert group concluded. They again underscored the importance of clinical trials in providing a controlled environment for patients wishing to have cell therapy, as well as a source of evidence for the feasibility of these approaches.

 

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