Adipose Tissue-Derived Stem Cells in Regenerative Medicine

Posted and filed under Adipose, Stem Cell Research, Stem Cell Therapy.

Regenerative medicine is a field of research concerned with the process of replacing diseased, dying, or dead cells with the intent of restoring structure and function. In its most basic form, regenerative medicine seeks to regrow cells that were lost or damaged due to injury or condition. Examples of regenerative medicine applications include restoring heart cells after a heart attack, repairing brain cells in Alzheimer’s disease or after stroke, or regenerating T-cells in HIV/AIDS. The potential applications of regenerative medicine are virtually limitless.

Adipose-derived stem cells hold great promise in the field of regenerative medicine. The stem cells are multipotent, which means they can become any number of cell types. For example, adipose-derived stem cells can become osteocytes (bone cells), neural cells (nerve cells), vascular endothelial cells (cells that make up blood vessels), cardiomyocytes (heart muscle cells), pancreatic β-cells (cells that produce insulin), and hepatocytes (liver cells).

Adipose- or fat-derived stem cells have one obvious advantage over bone marrow cells: they are much easier to obtain. Bone marrow stem cells require an uncomfortable/painful procedure to extract them from the center of the bone. Fat-derived stem cells, on the other hand, can be taken from fat pockets in any number of places just under the skin. This essentially combines a sort of liposuction with stem cell transplantation.

Adipose-derived stem cells are the subject of nearly 200 clinical trials worldwide. Even now, fat-derived stem cells are proving useful in several clinical conditions. Adipose-derived stem cells were shown to help people after they suffered from a heart attack, by reducing the size of the damaged heart and helping to restore heart function.

Another advantage of adipose-derived stem cells is that they present possess a tri-germ lineage differentiation potential, meaning they can differentiate into all three germ layers. In other words, they have the remarkable potential to become virtually any cell in the body. This means they can be applied to more than one disease state. In neurodegenerative diseases, such as post-stroke, adipose-derived stem cells could be used to create nerve cells (neurons) and the other main type of brain cell, called glia. Both cell types are destroyed during a stroke, and both are important for proper brain function.

As more results are published from dozens of clinical trials, we will get a clearer picture of the therapeutic potential of adipose-derived stem cells. Indeed, the future of regenerative medicine is very bright.

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