Interesting current research on stem cells:

Interesting current research on stem cells:

Stem cells, or progenitor cells, have the unique property of dividing indefinitely and the potential to transform into any type of cell, such as muscle, blood, nerve, or liver cells. Therefore, stem cell therapy is a treatment approach that focuses on restoring and replacing damaged cells so they can function again.^[1]

Recent advancements in scientific methods have improved the efficiency of stem cell isolation, allowing for the extraction and preservation of mesenchymal stem cells from sources such as umbilical cord and fat tissue. These stem cells retain their ability to divide and differentiate.^[1] As a result, there is an increasing variety of applications for stem cells in medical treatments, with research in numerous fields showing interest in their incorporation. Current studies confirm the promising potential of stem cell therapies. Significant progress has been reported in the treatment of diseases such as osteoarthritis and diabetes.

Osteoarthritis

For patients with osteoarthritis, some may opt for hip or knee replacement surgery. Although the lifespan of these artificial joints exceeds 20 years, many patients are hesitant to undergo surgery or are too young to qualify for the procedure. Stem cell therapy aims to regenerate damaged cartilage cells and restore their function.

A study conducted in South Korea, published in the journal STEM CELLS EXPRESS in 2014,^[2] focused on patients with osteoarthritis of the knee who met the criteria for knee replacement surgery based on radiographic images. In this study, mesenchymal stem cells were harvested from abdominal adipose tissue, cultured, and then injected back into the knees of the patients. Their symptoms and cartilage volume were assessed after treatment using MRI scans.

Results from the stem cell injection at the 6-month mark showed a statistically significant reduction in pain and an improved quality of life related to knee use. Although radiographic images showed no difference, by 3 months post-injection, a new layer of cartilage was found covering the worn articular surface, and this became more pronounced by the 6-month follow-up. This finding was corroborated by an arthroscopic examination of the knee joint, which revealed that the previously worn surface was covered with new cartilage.

Microscopic examination of the cartilage tissue that developed following the stem cell injection indicated that the newly formed cartilage resembled natural cartilage and was effective in distributing and bearing weight.

Liver disease

When liver function is impaired due to various causes, such as alcoholic hepatitis or viral hepatitis, it leads to inflammation and scarring, resulting in permanent liver dysfunction, even though liver cells can repair themselves.

The use of stem cells in treating liver degeneration aims to achieve two main objectives: first, to directly replace damaged liver cells; and second, to release stimulants and anti-inflammatory substances that reduce inflammation, inhibit liver scarring, and stimulate the regeneration of remaining liver cells.^[3]

Currently, numerous studies are investigating the use of stem cells to treat liver disease. A compilation of over 17 previously published studies^[3] indicates that mesenchymal stem cells have been used in nearly 700 patients. The results consistently show that stem cell therapy is safe for hepatitis patients and improves overall liver function in 15 out of the 17 studies. However, efforts are still ongoing to develop more effective stem cell therapies specifically targeting liver toxicity to enhance treatment outcomes.