Stem Cells Improve Symptoms in Chronic Obstructive Pulmonary Disease (COPD)

by admin | Nov 19, 2017 | COPD, Studies

A recent study that followed-up on the condition of patients with advanced pulmonary emphysema three years after they had begun a Phase I clinical trial in which they were treated with a type of stem cell called bone marrow mononuclear cells demonstrated improved symptoms and improved pathology. The idea for using stem cells to treat advanced pulmonary emphysema, a form of chronic obstructive pulmonary disease (COPD) arose because of a need for a treatment that is effective in slowing the progression of the disease. Despite advances in pharmaceutical interventions for COPD, there had not yet been an intervention that was viable in the long-term.

The group who reported these new results had also led the Phase I clinical trial 3 years prior. They had chosen bone marrow mononuclear cells because of evidence that when this type of cell was introduced to the bloodstream, it could later be found in pulmonary tissue. When the researchers used these cells in patients with emphysema, they found that the procedure was safe and did not produce any significant harmful side effects. Further, immediately following the clinical procedure, the rate of degeneration of lung tissue slowed down.

The 4 patients included in the study were males between 40 and 72 years old, had stopped smoking for about 10 years before the stem cells were introduced to their bodies, and had solid family support. They had each previously smoked for more than two decades. None of the patients abused drugs or alcohol or were pregnant, and those suffering from certain infections or other health complications were excluded from the study.

While patients improved immediately following the stem cell procedure, two of the patients developed pneumonia as a result of hospital infections. The other two showed improved lung function at the 3-year follow-up. These patients experienced reduced symptoms and also performed better in the spirometry test of lung function. In addition, they both reported a higher quality of life as a result of the stem cell procedure.

Learn more about stem cell therapy for COPD.

Study Reveals Mechanism by Which Stem Cells Improve Symptoms in Chronic Obstructive Pulmonary Disease (COPD)

by admin | Nov 13, 2017 | COPD, Studies

In response to the limitation of current treatments of chronic obstructive pulmonary disease (COPD), researchers have posted that stem cells may be a good option for patients who suffer from COPD. One of the key characteristics of COPD is inflammation seen in the lungs, and this inflammation leads to tissue destruction. Thus, researchers have tried to zero in on stem cells that could help minimize inflammation. In a recent study published in Scientific Reports, researchers show that certain stem cells can reverse inflammation and also demonstrate, at a molecular level, how the stem cells achieved this challenge.

For the study, researchers chose to use bone marrow-derived mesenchymal stem cells because this type of stem cell has reliably been shown to repair tissue that has been damaged by heart attacks or strokes. Further, clinical trials have shown that these cells can be used in COPD patients safely and are associated with a reduction in C-reactive protein (CRP). CRP is a prognostic marker, with higher levels indicating a worse prognosis in COPD patients.

Given the promise of bone marrow-derived mesenchymal stem cells in the treatment of COPD, the researchers aimed to help clarify the mechanism by which these stem cells may achieve their positive impacts on COPD patients. Such information would be useful when developing specific treatment protocols for this group of patients.

The researchers found that the stem cells did, in fact, reduce inflammation of the airway by inhibiting the action of an enzyme called cyclooxygenase-2 (COX-2). The suppression of COX-2 is known to be associated with relief of both inflammation and pain. The study also suggests that this suppression may specifically occur within macrophages, which play a role in inflammation.

These results help to solidify the idea that stem cell therapy can be useful for COPD treatment and point to a mechanism by which the use of stem cells could achieve the clinical goal of improved COPD symptoms and pathology. Further research into this mechanism may help researchers optimize stem cell interventions for COPD.

To find out more about stem cell therapy for COPD treatment, click here.